HomeMy WebLinkAboutLos Angeles Engineering Inc; 2018-06-27; PWS18-123PKS (14)
Poinsettia Community Park –
Phase III
Construction Project
Contract No. 4605
City of Carlsbad, California
Technical Specifications and Appendices
VOLUME II
Project Landscape Architect:
Jeffery T. Barr, Schmidt Design Group, Inc.
1111 Sixth Avenue, Suite 500
San Diego, CA 92101
(619) 236-1462
SDG Project #: 15-406
Date: March 5, 2018
Poinsettia Community
Park – Phase III
Appendix D:
Storm Water Pollution Prevention Plan
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
POINSETTIA PARK
Carlsbad, California
RISK LEVEL: 1
Prepared For:
City of Carlsbad
1635 Faraday Ave
Carlsbad, CA 92008
Prepared By:
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 170
San Diego, CA 92122
858.554.1500
www.fuscoe.com
CIP Project#: 4605
SWPPP#: SW16-06
Drawing#: 491-4
Project Manager: Kenneth T. Kozlik
Date Prepared: December 2015
Date Revised: October 2017
Job Number: 1440-001-01
full circle thinking®
6390 Greenwich Drive, Suite 170, San Diego, CA 92122 tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
December 2015
CITY OF CARLSBAD
Parks & Recreation Department
799 Pine Avenue, Suite 200
Carlsbad, CA 92008
Dear Sir or Madam:
This letter has been enclosed to inform you of your responsibilities as the owner of this SWPPP. The SWPPP is intended to
be a “living” document, integrating changes to the plan as the construction project progresses. Furthermore, it is to be
kept within the premises of the project at all times and kept on file for a period of three years after construction is
completed. Below is a list of requirements that you, the Project Superintendent, or the Qualified SWPPP Practitioner
(QSP) will need to fulfill in order to consider this SWPPP compliant once soil-disturbing activities begin:
1. Provide the name and contact information for the Qualified SWPPP Practitioner (QSP) and the General
Contractor in Section 6.2 and in Appendix K.
2. Insert copies of the Permit Registration Documents (PRDs), including the signed Fee Statement and WDID
Receipt (issued by the SWRCB) in Appendix C (available online through SMARTS).
3. Insert a copy of the Tentative Construction Activity Schedule provided by the contractor into Appendix H of this
SWPPP, and update the schedule as needed.
4. Insert a list of Contractors and Subcontractors in Appendix L, and update the list as necessary.
5. Include copies of the appropriate Training Documentation in Appendix J, including training for the designated
Qualified SWPPP Practitioner (QSP).
6. Update Site Plan / SWPPP Exhibits / Erosion Control Plan by hand as the project site changes (location of
trailer, stockpiling, cement wash out areas, construction phasing, etc.). Dates and initials should accompany
each change on the plan. Include copies in the SWPPP (Appendix B).
7. Site inspections must be performed quarterly, prior to anticipated storm events, during extended storm events,
and after actual storm events (see Section 7.5 for further details). Inspection forms can be found in Appendix P
and Appendix Q. On-site BMPs need to be inspected on a weekly basis. The Visual Inspection Report found in
Appendix P of the SWPPP should be used for inspections and is highly recommended for any other site
inspection not required by the Construction General Permit.
8. Spill Reports must be filled out when they occur at the project site (Appendix N).
9. Periodically distribute the Memorandum to Employees in Appendix J.
10. Have all subcontractors sign a copy of the Subcontractor Notification Letter in Appendix M.
11. Complete and submit the Annual Report to the SWRCB prior to September 1, 2015 and annually thereafter
while the project is under construction. This report must be based on the inspection reports accumulated for
each year. Details are provided in Appendix F.
If you have any questions regarding this letter, please feel free to contact me.
Sincerely,
FUSCOE ENGINEERING, INC.
Emma C. Smith
Environmental Scientist
S TORM WATER POLLUTION PREVENTION PLAN (SWPPP)
POINSETTIA COMMUNITY PARK DECEMBER 2015
FUSCOE ENGINEERING, INC.I
SWPPP CERTIFICATION
QUALIFIED SWPPP DEVELOPER (QSD) CERTIFICATION
"I certify that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system or those persons directly responsible for gathering the
information, to the best of my knowledge and belief, the information submitted is, true,
accurate, and complete and meets the requirements of the California Construction General
Permit (CAS000002, Order No. 2009-009-DWQ).
_______________________________________ ___________________________
Signature Date
Emma C. Smith, CPSWQ, CPESC, QSD
Environmental Scientist
CPSWQ #954
QSD #20121, Exp. 8.30.17
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 170
San Diego, CA 92122
858.554.1500
esmith@fuscoe.com
December 18, 2015
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
POINSETTIA COMMUNITY PARK DECEMBER 2015
FUSCOE ENGINEERING , INC. II
OWNER / LEGALLY RESPONSIBLE PERSON (LRP) CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of
the person or persons who manage the system or those persons directly responsible for
gathering the information, to the best of my knowledge and belief, the information
submitted is, true, accurate, and complete. I am aware that there are significant penalties
for submitting false information, including the possibility of fine and imprisonment for
knowing violations."
_______________________________________ ___________________________
Signature Date
Kevin Crawford
City Manager
City of Carlsbad
1635 Faraday Avenue
Carlsbad, CA 92008
760-602-2751
Kevin.Crawford@carlsbadca.gov
S TORM WATER POLLUTION PREVENTION PLAN (SWPPP)
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FUSCOE ENGINEERING, INC. III
TABLE OF CONTENTS
1. SWPPP REQUIREMENTS .........................................................................................1
1.1. INTRODUCTION .................................................................................................1
1.2. SWPPP OBJECTIVES ............................................................................................1
1.3. PERMIT REGISTRATION DOCUMENTS .......................................................................2
1.4. SWPPP AVAILABILITY AND IMPLEMENTATION .............................................................2
1.5. SWPPP AMENDMENTS .........................................................................................2
1.6. RETENTION OF RECORDS .....................................................................................3
1.7. REQUIRED NON-COMPLIANCE REPORTING ..............................................................4
1.8. ANNUAL REPORT ................................................................................................4
1.9. CHANGES TO PERMIT COVERAGE ..........................................................................5
1.10. NOTICE OF TERMINATION ....................................................................................5
1.11. REFERENCES ......................................................................................................6
2. PROJECT INFORMATION ......................................................................................7
2.1. PROJECT AND SITE DESCRIPTION ...........................................................................7
2.1.1. Project Description ................................................................................7
2.1.2. Site Description .....................................................................................7
2.1.3. Existing Drainage Conditions .................................................................8
2.1.4. Proposed Drainage Conditions ..............................................................8
2.1.5. Nature of Fill Material & Existing Data Describing the Soil ........................8
2.1.6. Environmentally Sensitive Site Conditions ................................................9
2.1.7. Site Plan...............................................................................................9
2.2. STORM WATER RUN-ON FROM OFF-SITE AREAS .......................................................9
2.3. FINDINGS OF THE CONSTRUCTION SITE SEDIMENT & RECEIVING WATER RISK
DETERMINATION .............................................................................................. 10
2.3.1. Site Sediment Risk ............................................................................... 11
2.3.2. Receiving Water Risk ........................................................................... 13
2.3.3. Risk Determination .............................................................................. 13
2.4. CONSTRUCTION SCHEDULE ................................................................................ 13
2.5. POTENTIAL CONSTRUCTION SITE POLLUTANT SOURCES ............................................ 13
2.5.1. Known Sources of Contamination On-Site ............................................ 14
2.5.2. Potential Areas for Storm Water Contamination ..................................... 14
2.5.3. Materials Inventory .............................................................................. 15
2.5.4. Pre-Construction Control Measures ...................................................... 16
2.6. IDENTIFICATION OF NON-STORM WATER DISCHARGES ............................................ 16
3. BEST MANAGEMENT PRACTICES (BMPS) .............................................................. 18
3.1. SCHEDULE FOR BMP IMPLEMENTATION ................................................................. 18
3.2. SWPPP EXHIBITS .............................................................................................. 18
3.3. EROSION CONTROL AND SEDIMENT CONTROL ...................................................... 18
3.3.1. Erosion Control BMPs ......................................................................... 18
3.3.2. Sediment Control BMPs ....................................................................... 21
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3.3.3. Tracking Control BMPs ........................................................................ 23
3.3.4. Wind Erosion Control BMPs ................................................................. 24
3.4. NON-STORM WATER AND MATERIAL MANAGEMENT ................................................ 25
3.4.1. Non-Storm Water Management BMPs .................................................. 25
3.4.2. Material and Waste Management BMPs................................................ 27
3.5. POST-CONSTRUCTION STORM WATER MANAGEMENT MEASURES ............................... 30
4. BMP INSPECTION, MAINTENANCE, AND RAIN EVENT ACTION PLANS (REAPS) ....... 33
4.1. BMP INSPECTION AND MAINTENANCE .................................................................. 33
4.2. RAIN EVENT ACTION PLANS ................................................................................ 34
5. TRAINING .......................................................................................................... 35
5.1. OVERVIEW ...................................................................................................... 35
5.2. TRAINING REQUIREMENTS .................................................................................. 35
5.2.1. Qualified SWPPP Developer (QSD) ...................................................... 35
5.2.2. Qualified SWPPP Practitioner (QSP) ...................................................... 36
5.2.3. Employee & Subcontractor Training ...................................................... 36
6. RESPONSIBLE PARTIES AND OPERATORS .............................................................. 38
6.1. RESPONSIBLE PARTIES ........................................................................................ 38
6.2. CONTRACTOR LIST ........................................................................................... 38
7. CONSTRUCTION SITE MONITORING PROGRAM (CSMP) ..................................... 39
7.1. PURPOSE ........................................................................................................ 39
7.2. APPLICABILITY OF PERMIT REQUIREMENTS ............................................................... 39
7.3. NUMERIC ACTION LEVELS, EFFLUENT LIMITATIONS, AND DISCHARGE PROHIBITIONS ........ 40
7.4. SAFETY ........................................................................................................... 41
7.5. VISUAL MONITORING (INSPECTIONS) .................................................................... 42
7.5.1. BMP Inspections ................................................................................. 42
7.5.2. Qualifying Rain Event Inspections ......................................................... 43
7.5.3. Non-Storm Water Discharge Inspections ............................................... 44
7.6. WATER QUALITY SAMPLING AND ANALYSIS ............................................................. 45
7.6.1. Potential Pollutant Sources ................................................................... 45
7.6.2. Monitoring Constituents by Risk Level .................................................... 46
7.6.3. Sampling Locations ............................................................................. 47
7.6.4. Sample Collection and Handling .......................................................... 47
7.6.5. Analytical Methods and Reporting Limits ............................................... 49
7.6.6. Exemptions ......................................................................................... 51
7.6.7. Bioassessment .................................................................................... 51
7.7. WATERSHED MONITORING OPTION ..................................................................... 51
7.8. QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC) ......................................... 52
7.8.1. Field Logs .......................................................................................... 52
7.8.2. Clean Sampling Techniques ................................................................. 52
7.8.3. Sample Chain-of-Custody ................................................................... 52
7.8.4. Data Verification ................................................................................. 52
7.9. REPORTING REQUIREMENTS AND RECORDS RETENTION ............................................ 53
7.9.1. Numeric Action Level Exceedance Report .............................................. 54
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7.9.2. Numeric Effluent Limitation (NEL) Violation Report ................................. 54
7.9.3. Annual Report .................................................................................... 55
7.9.4. Records Retention ............................................................................... 56
7.10. ACTIVE TREATMENT SYSTEMS (ATS) REQUIREMENTS .................................................. 56
7.10.1. Types of ATS ...................................................................................... 57
7.10.2. ATS Plan ............................................................................................ 57
7.10.3. Required Training for ATS Operation and Monitoring ............................. 58
7.10.4. Visual Monitoring (Inspection) .............................................................. 58
7.10.5. Operational and Compliance Monitoring ............................................. 58
7.10.6. Reporting and Records Retention .......................................................... 59
8. APPENDICES ....................................................................................................... 60
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APPENDICES
Appendix A Construction General Permit
Appendix B Exhibits
B1 Vicinity Map
B2 SWPPP Exhibits
B3 Erosion Control Plan, Demolition Plan & Excavation Plan (as appropriate)
B4 Sampling Locations Plan
B5 Post-Construction (SWMP) Plan
B6 Hydrology Maps
Appendix C Submitted Permit Registration Documents:
C1 PRD Instructions
C2 NOI
C3 Risk Assessment (Sediment and Receiving Water Risk Determination)
C4 Site Map (Including Vicinity Map)
C5 Signed Certification Statement/Fee Statement & WDID Receipt
Appendix D Submitted Changes to PRDs / COIs (due to change in ownership or acreage)
Appendix E SWPPP Amendment Log & SWPPP Amendments
Appendix F Annual Reporting Requirements
Appendix G Runoff Coefficient and Run-on Computation Sheets
Appendix H Construction Activity Schedule & BMP Implementation Schedule
Appendix I CASQA BMP Handbook Fact Sheets
Appendix J Training Documentation Forms & Sample Memorandum to Employees
Appendix K Responsible Parties
Appendix L Contractors and Subcontractors
Appendix M Sample Subcontractor Notification Letter and Log
Appendix N Significant Spill Reports
Appendix O Quick Reference Disposal Alternatives
Appendix P Visual Inspection Forms, Reports & Rain Gauge Log
Appendix Q Rain Event Action Plans (REAPs)
Appendix R Guidance on Field Measurements
Appendix S Pollutant Testing Guidance Table
Appendix T Storm Water Sampling Forms
Appendix U How to Submit an Ad Hoc Report for Construction Site Monitoring
Appendix V NAL/NEL Exceedance Site Evaluations and Non-Compliance Reports
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TABLES
Table 2.1 Site Impervious Area Composition ....................................................................9
Table 2.3 Combined Construction Site Risk Level Matrix .................................................. 10
Table 2.4 Sediment Risk Factor Summary ....................................................................... 12
Table 2.5 Potential Pollutant Sources from Construction Areas and Activities...................... 14
Table 2.6 Materials Inventory and Associated Pollutants of Concern ................................. 15
Table 3.1 Erosion Control BMPs .................................................................................... 19
Table 3.2 Sediment Control BMPs ................................................................................. 22
Table 3.3 Tracking Control BMPs .................................................................................. 23
Table 3.4 Wind Erosion Control BMPs ........................................................................... 24
Table 3.5 Non-Storm Water Management BMPs ............................................................. 25
Table 3.6 Material and Waste Management BMPs .......................................................... 28
Table 3.7 Non-Structural Source Control BMPs ............................................................... 31
Table 3.8 Structural Source Control BMPs ...................................................................... 31
Table 3.9 Structural Treatment Control BMPs .................................................................. 32
Table 6.1 List of Responsible Parties ............................................................................... 38
Table 6.2 List of Contractors ......................................................................................... 38
Table 7.1 Monitoring Requirements by Risk Level ............................................................ 39
Table 7.2 Analytical Methods and Protocols for General Permit Constituents ..................... 49
Table 7.3 Potential Non-Visible Pollutants based on Common Construction Activities ......... 50
Table 7.4 Summary of ATS Discharge Limitations ............................................................ 57
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ACRONYMS & ABBREVIATIONS
ASTM American Society for Testing and Materials
ATS Active Treatment System
BAT/BCT Best Available Technology/Best Control Technology
BMP Best Management Practice
BOD Biochemical Oxygen Demand
CASQA California Stormwater Quality Association
CFR Code of Federal Regulations
cfs cubic feet per second
CGP General Construction Permit
COD Chemical Oxygen Demand
COI Change of Information
CPESC Certified Professional in Erosion and Sediment Control
CPSWQ Certified Professional in Storm Water Quality
CSMP Construction Site Monitoring Program
ELAP Environmental Laboratory Accreditation Program
EPA Environmental Protection Agency
GIS Geographic Information Systems
LOEC Lowest Observed Effect Concentration
LRP Legally Responsible Person
MATC Maximum Allowable Threshold Concentration
MBAS Methylene Blue Activated Substances
MDL Method Detection Limit
MS4 Municipal Separate Storm Sewer System
MSDS Material Safety Data Sheets
MSRP Monitoring, Sampling & Reporting Plan
NAL Numeric Action Level
NEL Numeric Effluent Limitation
NICET National Institute for Certification in Engineering Technologies
NOAA National Oceanic and Atmospheric Administration
NOEC No Observed Effect Concentration
NOI Notice of Intent
NOT Notice of Termination
NPDES National Pollutant Discharge Elimination System
NTU Nephelometric Turbidity Units
O&M Operations & Maintenance
OC DAMP Orange County Drainage Area Management Plan
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PRD Permit Registration Document
QA/QC Quality Assurance/Quality Control
QAPrP Quality Assurance Program Plan
QSD Qualified SWPPP Developer
QSP Qualified SWPPP Practitioner
REAP Rain Event Action Plan
RUSLE Revised Universal Soil Loss Equation
RWQCB Regional Water Quality Control Board
SAFIT Southwestern Association of Freshwater Invertebrate Taxonomists
SMARTS Stormwater Multi Application and Tracking System
SSC Suspended Sediment Concentration
STE Standard Taxonomic Effect
SVOC Semi-Volatile Organic Compounds
SWAMP Surface Water Ambient Monitoring Program
SWPPP Storm Water Pollution Prevention Plan
SWRCB State Water Resources Control Board
TDS Total Dissolved Solids
TMDL Total Maximum Daily Load
TSP Trisodium Phosphate
TSS Total Suspended Solids
USDA United States Department of Agriculture
VOC Volatile Organic Compounds
WDID Waste Discharge Identification
WDR Waste Discharge Requirement
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1. SWPPP REQUIREMENTS
1.1. INTRODUCTION
This Storm Water Pollution Prevention Plan (SWPPP) has been prepared to provide
specifications for the management of both storm water and non-storm water discharges during
the construction and operation of Poinsettia Community Park in the City of Carlsbad. It has
been developed as required under State Water Resource Control Board (SWRCB) Order No.
2009-0009-DWQ National Pollutant Discharge Elimination System (NPDES) General Permit
No. CAS000002 (herein referred to as the General Permit or CGP) and in accordance with
good engineering practices. This SWPPP describes this facility and its operations, identifies
potential sources of storm water pollution at the facility and recommends appropriate Best
Management Practices (BMPs) or pollution control measures to reduce the discharge of
pollutants in storm water runoff construction and operational (post-construction) activities. The
contents of the SWPPP include, among other requirements, Construction Site Monitoring
Program (CSMP), requirements for preparing Rain Event Action Plans (REAPs), employee
training documentation, guidelines for periodic reviews of this SWPPP and annual reporting
requirements.
1.2. SWPPP OBJECTIVES
The objective of this SWPPP is to provide general and specific guidelines for the project owner
and contractors to follow in order to maintain and improve existing on-site water quality, and
to protect and preserve natural habitat, pursuant to the General Permit. This SWPPP is to be
amended or revised when necessary to meet the following objectives:
Identify all pollutants and their sources, including sources of sedimentation and
erosion associated with construction, construction site erosion and all other activities
associated with construction activity are controlled;
Where not otherwise required to be under a Regional Water Quality Control Board
(RWQCB) permit, all non-storm water discharges are identified and either eliminated,
controlled, or treated;
Identify, construct, implement in accordance with a time schedule, site BMPs that are
effective and result in the reduction or elimination of pollutants in storm water
discharges and authorized non-storm water discharges from construction activity to the
Best Available Technology/Best Control Technology(BAT/BCT) standard;
Calculations and design details as well as BMP controls for site run-on are complete
and correct;
Stabilization BMPs installed to reduce or eliminate pollutants after construction are
completed;
Identify post-construction BMPs, which are those measures to be installed during
construction that are intended to reduce or eliminate pollutants after construction is
completed; and
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Identify and provide methods to implement BMP inspection, visual monitoring, Rain
Event Action Plan (REAP) and Construction Site Monitoring Program (CSMP)
requirements to comply with the General Permit.
1.3. PERMIT REGISTRATION DOCUMENTS
To obtain coverage under the General Permit (Order No. 2009-0009-DWQ), the following
Permit Registration Documents (PRDs) must be electronically submitted to the SWRCB through
its Stormwater Multi Application and Tracking System (SMARTS) by the Legally Responsible
Person (LRP). The following documents are required for submittal, copies of which shall be
included in this SWPPP (Appendix C).
Notice of Intent (NOI)
Risk Assessment with supporting documentation
SWPPP
Site Map
Annual Fee
Post-construction Water Balance Calculation (not required for projects covered under
a Phase I MS4 Stormwater Permit)
Active Treatment System (ATS) Plan (if ATS will be used on-site)
Signed Certification Statement
Date Issued:
WDID Number: (to be completed upon issuance)
1.4. SWPPP AVAILABILITY AND IMPLEMENTATION
This SWPPP shall remain on the construction site premises at all times during the hours of
operation. This rule is effective beginning with the commencement of soil disturbing activities
at the project site and remains in effect until the SWRCB approves the Notice of Termination
(NOT) of coverage under the Construction General Permit.
The SWPPP shall be implemented concurrently with the start of ground disturbing activities.
1.5. SWPPP AMENDMENTS
This SWPPP shall be amended:
Whenever there is a change in construction or operations which may affect the
discharge of pollutants to surface waters, groundwater(s), or a municipal separate
storm system, (MS4); or
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If any conditions of the Permits is violated or the general objective of reducing or
eliminating pollutants in storm water discharges has not been achieved. If the
RWQCB determines that a permit violation has occurred, the SWPPP shall be
amended and implemented within 14 calendar days after notification by the RWQCB;
Annually, prior to the defined rainy season, when required by the project’s Special
Provisions; and
When deemed necessary by the Engineer of Record, Qualified SWPPP Practitioner
(QSP), or the Qualified SWPPP Developer (QSD).
The following item will be included in each amendment:
Who requested the amendment
The location of the proposed change
The reason for the change
The original BMP proposed, if any
The new BMP proposed
Amendments for this SWPPP are listed in the Amendment Log in Appendix E. As part of the
General Permit, any amendments to this SWPPP shall be documented in Appendix E,
submitted electronically to the SWRCB through the Storm Water Multi-Application Report
Tracking system (SMARTS) and certified by the LRP or the LRP’s approved signatory.
Amendments shall also be signed by the QSD.
1.6. RETENTION OF RECORDS
The General Permit (Sections I.J.69 and IV.G) requires that all dischargers maintain a paper
or electronic copy of all required records for three years from the date generated or date
submitted, whichever is last. These records must be available at the construction site until
construction is completed. The discharger shall furnish the RWQCB, SWRCB, or US
Environmental Protection Agency (EPA), within a reasonable time, any requested information
to determine compliance with the General Permit.
The following reports and records are required:
Amendments to the SWPPP / Erosion Control Plan – to be shown on field copy and
attached to the SWPPP (Appendix E)
Inspection Reports – Checklist per attached form in Appendix P
Training Documentation – per attached form in Appendix J
Non-Compliance Reports – include copies in Appendix V
Rain Event Action Plans (REAPs) – per attached form (Appendix Q)
Annual Reports – include in Appendix F
Change of Ownership – per changes to PRDs, include in Appendix D
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Notice of Termination – include copy in Appendix D
Water Quality Sampling & Analysis Data – per attached forms in Appendix T
1.7. REQUIRED NON-COMPLIANCE REPORTING
Dischargers who cannot certify compliance and/or who have had other instances of non-
compliance according to the General Permit criteria shall notify the RWQCB (via SMARTS
reporting). Notifications shall include description of non-compliance event, impact
assessment, mitigation measures and schedule of activities necessary to restore compliance.
Exceedances and violations to be reported should include the following:
Numeric Action Level (NAL) exceedances (NAL Exceedance Report upon request of the
RWQCB);
Numeric Effluent Limitation (NEL) Violation Report;
Self-reporting of any other discharge violations or to comply with RWQCB
enforcement actions; and
Discharges which contain a hazardous substance in excess of reportable quantities
established in 40 CFR §§ 117.3 and 302.4, unless a separate NPDES Permit has
been issued to regulate those discharges.
Copies of all reportable exceedances shall be included in the SWPPP. Include the results of
an NAL exceedance site evaluation along with other non-compliance events in Appendix V.
Refer to Section 7.9 and Appendix U for additional information on non-compliance reporting.
1.8. ANNUAL REPORT
The Construction General Permit requires construction sites that are enrolled for more than
one continuous three-month period are required to submit information and annually certify
that their site is incompliance with the requirements of the General Permit (Order 2009-0009-
DWQ). Annual reports shall be prepared and submitted electronically no later than September
1st each year (beginning September 1, 2015) using the SWRCB’s SMARTS website. In
addition, the Annual Report is required when submitting a Notice of Termination (NOT).
The Annual Report must include a summary and evaluation of the following:
1) Sampling and analysis results including laboratory reports, analytical methods and
reporting limits and chain of custody forms (Risk Levels 2 and 3 only);
2) Corrective actions and compliance activities, including those not implemented;
3) Violations of the General Permit;
4) Date, time, place, and name(s) of the inspector(s) for all sampling, inspections, and
field measurement activities;
5) Visual observation and sample collection exception records; and
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6) Training documentation of all personnel responsible for General Permit compliance
activities.
Copies of the completed Annual Reports may also be included in Appendix F.
Note: Annual reporting replaces the “Annual Compliance Certification” requirement after July
1, 2010.
1.9. CHANGES TO PERMIT COVERAGE
The General Permit (Section II.C) allows changes to the project acreage covered by a WDID
when a portion of the project is complete and/or conditions for termination have been met;
when ownership of a portion of the project is sold to a different entity; or when new acreage is
added to the project. In order to change the acreage covered, new and/or modified PRDs
must be filed electronically within 30 days of a reduction or increase in total disturbed areas.
Changes are submitted through the Change of Information (COI) form through SMARTS. The
following must be submitted:
Revised Notice of Intent (NOI)
SWPPP Revisions (as appropriate)
Revised Site Map
New landowner information (including name, address phone number and email
address)
Signed Certification Statement that new landowners have been notified of applicable
requirements to obtain permit coverage
If the project acreage has increased, dischargers shall mail payment of the revised annual fees
within 14 days of receiving the revised annual fee notification.
Any updates to PRDs and COIs shall be included in this SWPPP (Appendix D).
1.10. NOTICE OF TERMINATION
To terminate coverage under the General Permit, a Notice of Termination (NOT) must be
submitted electronically via SMARTS. Filing a NOT certifies that all requirements of the
General Permit have been met. The NOT is submitted when the construction of the project is
complete and within 90 days of meeting all General Permit requirements for termination and
final stabilization, which include the following:
The site will not pose any additional sediment discharge risk than it did prior to
construction activity.
All construction related equipment, materials and any temporary BMPs no longer
needed are removed from the site.
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Post-construction storm water management measures are installed and a long-term
maintenance plan that is designed for a minimum of five years has been developed.
A final site map and photos are required to be submitted with the NOT. The Annual Report
must also be submitted prior to submitting the NOT. In addition, the NOT must demonstrate
through photos, Revised Universal Soil Loss Equation (RUSLE) results, or results of testing and
analysis that the project meets all of the requirements of Section II.D of the General Permit by
one of the following methods:
70% final cover method (no computational proof required); or
RUSLE/RUSLE2 method (computational proof required); or
Custom method (discharger demonstrates that site complies with final stabilization).
1.11. REFERENCES
The following documents are made part of this SWPPP by reference:
State Water Resources Control Board (SWRCB) Order No. 2009-0009-DWQ,
National Pollutant Discharge Elimination System (NPDES) General Permit No.
CAS000002, Waste Discharge Requirements (WDRs) for Discharges of Storm Water
Runoff Associated with Construction and Land Disturbance Activities.
California Stormwater BMP Handbook – Construction, November 2009
San Diego Regional Water Quality Control Board (RWQCB) Final 2006 Clean Water
Act Section 303(d) List of Water Quality Limited Segments.
Caltrans SWPPP/WPCP Preparation Manual, dated March, 2007.
San Diego RWQCB, Water Quality Control Plan for the San Diego Basin (9).
September 8, 1994.
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2. PROJECT INFORMATION
2.1. PROJECT AND SITE DESCRIPTION
2.1.1. Project Description
The 1.97 acre project is located within the existing Poinsettia Community Park at 6600
Hidden Valley Road, in Carlsbad, Ca.
The proposed project will reconfigure and expand the Tot Lot, add a new Dog Park area as
well as an arena-style soccer field within the existing park footprint.
2.1.2. Site Description
The project site is located within the San Diego Regional Water Quality Board in the Carlsbad
Hydrologic Unit. The project is in the Encincas Hydrologic Area and discharges to the Pacific
Ocean via the Canyon de Las Encinas.
The Canyon de Las Encinas is not listed on the California 2010 303(d) list of impaired water
bodies.
Existing Beneficial Uses for Canyon de Las Encinas include REC2, WARM, WILD and a
potential beneficial use for REC1.
Contact Water Recreation (REC-1)
Includes uses of water for recreational activities involving body contact with water, where
ingestion of water is reasonably possible. These uses include, but are not limited to,
swimming, wading, water-skiing, skin and SCUBA diving, surfing, white water activities,
fishing, or use of natural hot springs.
Non-contact Water Recreation (REC-2)
Includes the uses of water for recreational activities involving proximity to water, but not
normally involving body contact with water, where ingestion of water is reasonably possible.
These uses include, but are not limited to, picnicking, sunbathing, hiking, beachcombing,
camping, boating, tidepool and marine life study, hunting, sightseeing, or aesthetic enjoyment
in conjunction with the above activities.
Warm Freshwater Habitat (WARM)
Includes uses of water that support warm water ecosystems including, but not limited to,
preservation or enhancement of aquatic habitats, vegetation, fish or wildlife, including
invertebrates.
Wildlife Habitat (WILD)
Includes uses of water that support terrestrial ecosystems including, but not limited to,
preservation and enhancement of terrestrial habitats, vegetation, wildlife (e.g., mammals,
birds, reptiles, amphibians, invertebrates), or wildlife water and food sources.
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2.1.3. Existing Drainage Conditions
The Poinsettia Park site can be broken up into three drainage basins corresponding to the
three work areas for the proposed improvements. Basin A consists of the tot lot area, which
drains towards the southwest via surface flow and an area drain system under the existing tot
lot. Basin B consists of the proposed dog park area. Basin B is roughly bowl-shaped, with
runoff collecting in the central portion of the basin where a storm drain line ultimately conveys
runoff to a canyon to the west. Basin B accepts run-on from Basin A and offsite areas to the
south and northeast via underground storm drains. Basin C consists of the proposed soccer
arena site, and is currently a graded pad. There is an existing storm drain system along the
southwesterly edge of the pad, which collects runoff from the pad and the adjacent slopes to
the east.
2.1.4. Proposed Drainage Conditions
Under proposed conditions, the tot lot will be expanded. A new subdrain system will be
installed under the pervious resilient playground systems, but general flow patterns will remain
the same. A biofiltration basin will be added to treat runoff from the proposed impervious
surfaces. Creation of the dog park in Basin B will require some regrading of the basin and the
addition of two entry plazas and pervious pavement. Biofiltration basins will be added to treat
runoff from the proposed impervious surfaces. In Basin C, the soccer arena and surrounding
plaza areas will be constructed entirely of pervious materials in order to preserve existing flow
rates. Some modificaitons to the storm drain system in Basin C are proposed, including
adding a subdrain under the synthetic turf areas and area drains to collect the slope runoff.
2.1.5. Nature of Fill Material & Existing Data Describing the Soil
A Revised Final Soils Investigation Report was prepared by K2 Engineering on November 20,
2015 for the Poinsettia Community Park Expansion project. The Summary of this report states
the following with regards to the existing soil conditions of the site:
“This report presents the results of our soils investigation performed to provide earthwork and
foundation recommendations for the proposed Poinsettia Community Park Expansion. The
proposed expansion projects are to be located on the western side of Poinsettia Community
Park located on Hidden Valley Road, north of Beacon Bay Drive and south of Turnstone Road
in Carlsbad, California. The location of the exploratory excavations is presented on Plate 1,
Site Plan. A summary of our findings and recommendations is presented below.
• Fill soils 6 to 14 feet in thickness were encountered in the exploratory excavations. The fill
soils consisted of loose to dense silty sand and clayey sand. Laboratory testing indicated
relative compaction of 86% to 95% at the sample locations. The fill soils have a low expansion
potential. The fill soils were reportedly placed during mass grading of the site. Documentation
regarding fill placement was not available for review. If future improvements beyond those
considered in this report are planned, additional studies will be required.
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• Formational materials were encountered beneath the fill at two of the exploratory
excavations (BP-4 and BP-5) at depths of 6 and 14½ feet. The formational materials consisted
of dense to very dense, weakly cemented, silty sandstone and siltstone.
• Groundwater was not encountered in any of the excavations.
• Due to the low densities noted in the upper fill soils, it is recommended that the existing fill
soils be overexcavated and replaced as compacted fill beneath the proposed arena, slabs
and/or hardscaped areas.
• It is recommended that the footings for the proposed retaining be supported on at least 2
feet of compacted fill.
• Percolation testing performed on site indicated slow to moderately rapid percolation rates.”
2.1.6. Environmentally Sensitive Site Conditions
Under existing conditions, the project site is a public community park. The project site is not
located in an area of known for erosive soil conditions, such as a hillside development, nor is
it located near environmentally sensitive areas, such as protected habitat or proximate to
receiving water bodies. Therefore, it is not expected that construction activities at the project
site will impact water quality of environmentally sensitive features.
2.1.7. Site Plan
Approximately 1.97 acres (grading limit) will be developed and/or disturbed on the Poinsettia
Community Park project site. Under the existing condition, the Poinsettia Community Park
project site is primarily an existing community park. Under the proposed condition, the project
area will include increases in hardscape (roads, pads, infrastructure improvements) and
softscape (landscaping) thereby altering the runoff conditions. A summary of the proposed
impervious area composition is illustrated in the table below.
Table 2.1 Site Impervious Area Composition
Parameter Estimate
Construction Site Area 1.97 acres
Percentage Impervious Area Before Construction 0%
Runoff Coefficient Before Construction 0.35
Percentage Impervious Area After Construction 9%
Runoff Coefficient After Construction 0.31
Note: Calculations are provided in Appendix G.
2.2. STORM WATER RUN-ON FROM OFF-SITE AREAS
The work areas at Poinsettia Park accept run-on from two storm drain systems which convey
flows from offsite areas. A storm drain system discharges to the surface at the southwest
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corner of Basin A. This storm drain system conveys flows from the parking lot and other park
facilities to the north and east. This runoff is then conveyed to Basin B through a dual 24”
pipe culvert, and flows through Basin B in a concrete-lined swale. Based on record drawing,
the 100-year flowrate in this storm drain system is 34.3 cfs. A second offsite storm drain
system enters in the southwesterly portion of Basin B and again flows through a concrete-lined
swale. This storm drain conveys flows from the park areas to the south and east, with a 100-
year flow rate of 19.1 cfs per record drawings.
2.3. FINDINGS OF THE CONSTRUCTION SITE SEDIMENT & RECEIVING WATER
RISK DETERMINATION
The General Permit uses a risk-based approach for controlling erosion and sediment
discharges from construction sites, since the rates of erosion and sedimentation can vary from
site to site depending on factors such as duration of construction activities, climate,
topography, soil condition, and proximity to receiving water bodies. The General Permit
identifies three levels of risk with differing requirements, designated as Risk Levels 1, 2 and 3,
with Risk Level 1 having the fewest permit requirements and Risk Level 3 having the most-
stringent requirements.
The Risk Assessment incorporates two risk factors for a project site: sediment risk (general
amount of sediment potentially discharged from the site) and receiving water risk (the risk
sediment discharges can pose to receiving waters). Sediment risk from a project site is
determined utilizing a derivative of the Revised Universal Soil Loss Equation (RUSLE), a model
developed by the US Department of Agriculture (USDA) and is utilized by the US EPA for
estimating rates of soil loss at construction sites during rain events. The Receiving Water Risk
is based on whether or not the project site drains to a sediment-sensitive water body or a
water body with SPAWN, COLD, and MIGRATORY designated beneficial uses as specified in
the San Diego RWQCB’s Basin Plan.
The resultant risk levels for Sediment Risk and Receiving Water Risk is then assessed in a matrix
to determine the combined risk level, based on a scale of 1 to 3. The combined risk level
matrix is presented as Table 2.3.
Table 2.3 Combined Construction Site Risk Level Matrix
Receiving Water Risk Sediment Risk
Low Medium High
Low Risk Level 1 Risk Level 2 Risk Level 2
High Risk Level 2 Risk Level 2 Risk Level 3
Based on the Risk Level a project falls under, different sets of regulatory requirements are
applied to the site. The main difference between Risk Levels 1, 2, and 3 are the numeric
effluent standards. In Risk Level 1, there are no numeric effluent standard requirements, as it
is considered a low Sediment Risk and low Receiving Water Risk (see matrix above). Instead,
narrative effluent limits are prescribed. In Risk Level 2, Numeric Action Levels (NALs) of pH
between 6.5-8.5 and turbidity below 250 NTU are prescribed in addition to the narrative
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effluent limitations found in Risk Level 1 requirements. Should the NAL be exceeded during a
storm event, the discharger is required to immediately determine the source associated with
the exceedance and to implement corrective actions if necessary to mitigate the exceedance.
For a Risk Level 3 site, Numeric Effluent Limits (NELs) are applied in addition to the narrative
and numeric effluent standards prescribed for a Risk Level 2 site. Risk Level 3 dischargers are
subject to a pH NEL of 6.0-9.0 and a turbidity NEL of 500 NTU. Once an NEL is exceeded,
the construction site is considered in violation of the General Permit
2.3.1. Site Sediment Risk
Sediment risk from a project site is determined utilizing a derivative of the Revised Universal
Soil Loss Equation (RUSLE), a model developed by the US Department of Agriculture (USDA)
and is utilized by the US EPA for estimating rates of soil loss at construction sites during rain
events. Utilizing RUSLE, the sediment risk for the project site is thus determined by the
following equation:
A = (R)(K)(LS)(C)(P)
Where: A = rate of sheet and rill erosion, in tons/acre
R = rainfall-runoff erosivity factor
K = soil erodibility factor
LS = length-slope factor
C = cover factor (erosion controls)
P = management operations & support practices
(sediment controls)
The General Permit provides the following procedure for determining the RUSLE equation
factors for construction sites:
R-Factor: Analyses of data indicated that when factors other than rainfall are held
constant, soil loss is directly proportional to a rainfall factor composed of total storm
kinetic energy (E) times the maximum 30-min intensity (I30).1 The numerical value of R
is the average annual sum of EI30 for storm events during a rainfall record of at least
22 years. "Isoerodent" maps were developed based on R-values calculated for more
than 1,000 locations in the Western U.S. The maps may be utilized to determine the
Standard Risk Assessment, and have been included in Appendix 1 of the General
Permit (Appendix A of this SWPPP). A hand-calculation may also be utilized to
determine the site’s R-Factor, either by utilizing the methodology described in USDA’s
Agricultural Handbook 703, Predicting soil erosion by water: A guide to conservation
planning with the Revised Universal Soil Loss Equation (RUSLE), or the EPA’s R-value
Risk Calculator (available at
http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm).
K-Factor: The soil-erodibility factor K represents: (1) susceptibility of soil or surface
material to erosion, (2) transportability of the sediment, and (3) the amount and rate
of runoff given a particular rainfall input, as measured under a standard condition.
1 United States Department of Agriculture (USDA). Predicting Rainfall Erosion Losses A Guide to Conservation
Planning. Agriculture Handbook 537. December 1978.
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The site-specific K-factor may be determined using the nomograph method as shown
in Appendix 1 of the General Permit based on a particle-size analysis (ASTM D-422)
performed for the soils at the project site.
LS Factor: The effect of topography on erosion is accounted for by the LS factor,
which combines the effects of a hillslope-length factor, L, and a hillslope-gradient
factor, S. Generally speaking, as hillslope length and/or hillslope gradient increase,
soil loss increases. As hillslope length increases, total soil loss and soil loss per unit
area increase due to the progressive accumulation of runoff in the downslope
direction. As the hillslope gradient increases, the velocity and erosivity of runoff
increases. The weighted average LS factor may be determined using the LS Table
located in Appendix 1 of the General Permit (Appendix A of this SWPPP).
Alternatively, K and LS factors can be derived from the color map included in Appendix 1 of
the General Permit (Appendix A of this SWPPP). This alternative method is termed the GIS
Map Method. The map is a geographical representation of combined K and LS factors for the
State of California.
C-Factor: Cover factor based on erosion controls. Assumed to equal 1.0 to simulate
bare ground conditions. The implementation of erosion control measures for the
proposed project during construction will reduce the C-Factor to less than 1.0, thereby
reducing the erosion potential.
P-Factor: Management operations and support practices for sediment controls.
Assumed to equal 1.0 to simulate bare ground conditions. The implementation of
sediment control measures for the proposed project during construction will reduce the
P-factor to less than 1.0, thereby reducing the sediment loss potential.
With both the C-Factor and P-Factor set at 1.0 to simulate bare ground conditions rather than
utilizing values to simulate conditions where construction is taking place, sediment risk is
condensed to multiplying R, K, and LS factors from RUSLE. The resultant risk of soil loss (A),
measured in tons per acre, is then categorized as Low, Medium, or High based on the
following breakdown:
A < 15 tons/acre = Low Sediment Risk
A > 15 and < 75 tons/acre = Medium Sediment Risk
A > 75 tons/acre = High Sediment Risk
To determine the Sediment Risk for the Poinsettia Community Park project, the GIS Map
Method was utilized. Table 2.4 summarizes the results of the Sediment Risk Analysis
performed for the project. Supporting details and calculations are provided in Appendix C.
Table 2.4 Sediment Risk Factor Summary
Parameter Method Used Result
R Factor EPA Worksheet 3.1 30
K Factor GIS Map Method 0.2
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Parameter Method Used Result
LS Factor GIS Map Method 2.1465
Watershed Erosion Estimate (in tons/acre) 12.879
Therefore, the Project’s Sediment Risk is Low.
2.3.2. Receiving Water Risk
The second risk factor in performing a Risk Assessment is Receiving Water Risk. The Receiving
Water Risk is based on whether or not the project site drains to a sediment-sensitive water
body. The General Permit identifies a High Receiving Water Risk if the project drains to a
receiving water body that meets at least one of the following characteristics:
The disturbed area discharges (either directly or indirectly) to a 303(d)-listed water
body impaired by sediment.
The disturbed area discharges to a water body that has a US EPA-approved TMDL
implementation plan for sediment.
The disturbed area discharges to a water body with designated beneficial uses of
SPAWN, COLD, & MIGRATORY per the region’s Basin Plan.
If the project does not discharge to a water body that meets one of the above categories, it is
considered a Low Receiving Water Risk.
The project does not meet any of the above criteria. Therefore, the Project’s Receiving Water
Risk is Low.
2.3.3. Risk Determination
The resultant Risk Level for the Poinsettia Community Park project is Risk Level 1.
Risk Level 1 requirements are outlined in the General Permit, included as Appendix A of this
SWPPP.
2.4. CONSTRUCTION SCHEDULE
This SWPPP shall be implemented concurrently with the commencement of soil disturbing
activities at the project site. Grading is anticipated to begin September 1, 2016. It is
estimated that the project will be completed September 1, 2017. The construction activity
schedule for the Poinsettia Community Park project is provided in Appendix H of this SWPPP.
A schedule for BMP implementation is also included in Appendix H.
2.5. POTENTIAL CONSTRUCTION SITE POLLUTANT SOURCES
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This section identifies the activities, materials and conditions on the project site that may cause
pollutants to become entrained in runoff and discharge from the site. The activities and
potential pollutants summarized in the following sections have been considered in selecting
BMPs for the project.
2.5.1. Known Sources of Contamination On-Site
Based on the review of the available documents, Fuscoe Engineering is not aware of any
significant quantities of toxic materials known to have been treated, stored, disposed, spilled
or leaked out of this construction site. The City of Carlsbad is not aware of any significant
quantities of toxic materials known to have been treated, stored, disposed, spilled or leaked
out of this construction site.
2.5.2. Potential Areas for Storm Water Contamination
The following source areas for potential storm water runoff contamination were identified and
evaluated in this SWPPP:
Table 2.5 Potential Pollutant Sources from Construction Areas and Activities
Activity/Area of Concern Potential Problem/Pollutants Visually
Observable?
Cleared and graded areas Sediment mobilization from soil stockpiles and
erosion can occur without proper sediment and
erosion controls.
Yes
Concrete disposal Concrete waste, sediment, metals, can raise pH
levels outside of permitted range
Yes
Construction site entrance Tracking of sediment off-site onto existing roads if
entrance is not stabilized/protected.
Yes
Demolition of existing
structures
Trash & debris Yes
Drilling Sediment, Non-storm water discharges Yes
Equipment storage area Leaking hydraulic oil and antifreeze from
construction equipment.
Yes
Existing drain inlets The allowance of non-storm water discharges to
enter the storm drain without proper inlet
protection.
Yes
Fueling area Gasoline and diesel fuel leaks and spills from
fueling activities.
Yes
Landscaping Sediment and erosion, trash, debris, organics, soil
amendments, fertilizers, soil amendments
Varies
Masonry, Paving Operations Sediment, oil & grease, mortar, concrete wastes,
can raise pH levels outside of permitted range
Yes
Material delivery and storage
area
Construction materials such as paints, plaster, and
solvents left exposed and uncovered, or accidental
spills.
Varies
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Activity/Area of Concern Potential Problem/Pollutants Visually
Observable?
Painting, Plastering, Stucco Trace metals, oil, grease, fuels, toxics, thinners,
solvents, non-storm water discharges
Varies
Run-on from existing facilities Developed areas contribute to the deposition of
bacteria, pesticides, fertilizers, oils, litter, and
sediment on impervious surfaces.
Varies
Vertical Construction Exposure of trash/debris, sediment, metals Yes
Waste collection area Exposure of trash/debris to roof drainage or direct
contact with storm water if left uncovered or
exposed.
Yes
Other:
BMPs were prescribed for the mitigation and abatement of storm water runoff contamination
at these potential source areas. They are described in Section 3.
2.5.3. Materials Inventory
Poor management of construction materials and equipment, particularly in the storage and
handling of raw materials, can create potential pollutant sources that can lead to storm water
runoff contamination. Table 2.6 provides an inventory of materials used at the project site
that require the use of Best Management Practices (BMPs) to mitigate or eliminate contact with
storm water runoff. This table includes information regarding the material type and its
corresponding storm water pollutant constituents of concern.
Table 2.6 Materials Inventory and Associated Pollutants of Concern
Material Type Storm Water Pollutant Constituents Visually
Observable?
Adhesives/Glue Chemical oxygen demand (COD), phenols, semi-
volatile organic compounds (SVOCs)
Yes
Antifreeze/Coolant Ethylene glycol, propylene glycol, heavy metals Yes
Asphalt Oil, petroleum distillates Yes
Cleaning Products/Solvents Perchloroethylene, methylene chloride,
trichloroethylene, petroleum distillates
Varies
Concrete/Cement Limestone, sand, turbidity, fly ash, heavy metals,
calcium sulfate, pH
Yes
Curing Compounds Naphtha, glass oxide, urea extended phenol No
Diesel Fuel Petroleum distillate, oil & grease, naphthalene,
xylenes
Yes
Drywall Compounds Vinyl acetate, pigment No
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Material Type Storm Water Pollutant Constituents Visually
Observable?
Erosion/Sand/Gravel Soil, Particulates, turbidity, total suspended solids
(TSS)
Yes
Fertilizer Nitrogen, phosphorus Yes
Gasoline Benzene, ethyl benzene, toluene, xylene, methyl
tertiary-butyl ether (MTBE)
Yes
Hydraulic Oil/Fluids Mineral oil, additives, combustion byproducts Yes
Kerosene Coal oil, petroleum distillates Yes
Masonry/Tile/Stone Debris, grout
Paints Metal oxide, Stoddard solvent, talc, calcium
carbonate, arsenic, ethylene glycol
Yes
Pesticides Chlorinated hydrocarbons, organophosphates,
carbamates, arsenic
Varies
Plaster Calcium sulfate, calcium carbonate, sulfuric acid Yes
Sandblasting Materials Sandblasting abrasives, rust, rubble, paint Yes
Sanitary waste Human waste, feces, bacteria Yes
Soil Amendments Gypsum, aluminum sulfate, sulfur No
Solid waste, litter Floatables, trash, debris Yes
Wastewater from Equipment
Washing
Soil, oil & grease, solids, turbidity, sediments,
sulfites
Yes
Wood Preservatives Stoddard solvent, petroleum, distillates, arsenic,
copper, chromium
No
Vegetation Organics Yes
Other:
2.5.4. Pre-Construction Control Measures
This site is currently developed and does not contain any existing control measures. All
clearing and construction related activities that have the potential to cause discharges will be
minimized with BMPs implemented under this SWPPP.
2.6. IDENTIFICATION OF NON-STORM WATER DISCHARGES
All efforts will be made by the Project to reduce or eliminate non-storm water discharges from
the site. Non-storm water discharges include a wide variety of sources, including improper
dumping, spills, or leakage from storage tanks or transfer areas. Potential pollutants and
activities that may result in non-storm water discharges are listed in Sections 2.4 and 2.5.
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Authorized non-storm water discharges may include those from dechlorinated potable water
sources such as: fire hydrant flushing, irrigation of vegetative erosion control measures, pipe
flushing and testing, water to control dust, uncontaminated ground water from dewatering,
and other discharges not subject to a separate general NPDES permit adopted by a Regional
Water Board. The discharge of non-storm water is authorized under the following conditions:
The discharge does not cause or contribute to a violation of any water quality
standard;
The discharge does not violate any other provision of the Construction General
Permit;
The discharge is not prohibited by the applicable Basin Plan;
The discharger has included and implemented specific BMPs required by the General
Permit to prevent or reduce the contact of the non-storm water discharge with
construction materials or equipment;
The discharge does not contain toxic constituents in toxic amounts or (other)
significant quantities of pollutants;
The discharge is monitored and meets the applicable NALs and NELs; and
The discharger reports the sampling information in the Annual Report.
If any of the above conditions are not satisfied, the discharge is not authorized by this General
Permit. The discharger shall notify the Regional Water Board of any anticipated non-storm
water discharges not already authorized by this General Permit or another NPDES permit, to
determine whether a separate NPDES permit is necessary. Sampling requirements for non-
storm water discharges are outlined in Section 7.6.
Dewatering activities involving the removal of storm water from excavated areas are not
anticipated at the site during construction.
Dewatering activities involving shallow groundwater are not anticipated at the site during
construction.
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3. BEST MANAGEMENT PRACTICES (BMPS)
This SWPPP provides specifications and guidelines for reducing the sediment loading into
receiving water bodies that could occur during the construction and operation of Poinsettia
Community Park. Although some erosion and soil loss is unavoidable during land-
disturbance activities, the proper siting and design of erosion and sediment controls will
reduce the amount of sediment transported off-site. Effective site management minimizes
excessive soil erosion by keeping the soil stabilized and by directing runoff from disturbed
areas to locations where sediments are removed prior to discharge to receiving water bodies.
The following information identifies the specific construction BMPs that are implemented at
Poinsettia Community Park.
3.1. SCHEDULE FOR BMP IMPLEMENTATION
A schedule for BMP implementation is included in Appendix H. BMPs will be implemented
according to the schedules described in the following sections as well as in Appendix H in
accordance with weather conditions and phases of construction.
3.2. SWPPP EXHIBITS
SWPPP Exhibits for the applicable phases of construction are included in Appendix B. The
maps show existing topography, identify grading areas and proposed slopes, and the location
of erosion control measures, such as perimeter controls, gravel bag berms and storm drain
inlet protection measures (where applicable). In addition, Demolition Plans and/or Grading
Sheets have been included in Appendix B for reference or use as future SWPPP Progress Maps.
These maps are to be updated by the Contractor continually throughout construction of the
project, as each phase of construction commences to reflect current BMP conditions. Updates
may be made by hand in the field, and shall be initialed and dated. Copies of updated maps
shall be included with this SWPPP.
3.3. EROSION CONTROL AND SEDIMENT CONTROL
3.3.1. Erosion Control BMPs
Erosion Control, also referred to as soil stabilization, is a source control measure that is
designed to prevent soil particles from detaching and becoming transported in the storm water
runoff. Erosion Control BMPs protect the soil surface by covering and/or binding the soil
particles. All inactive soil disturbed areas on the project site, and most active areas prior to
the onset of rain, must be protected from erosion. Soil disturbed areas may include relatively
flat areas as well as slopes. Inactive areas include areas of construction activity that have
been disturbed but are not currently being worked on and are not scheduled to be re-
disturbed for at least 14 days.
This project will incorporate minimum temporary soil stabilization requirements, temporary
erosion control/soil stabilization measures required by the contract documents, and other
measures selected by the contractor. This construction project will implement the practices
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identified in Table 3.1 to assure effective temporary and final erosion control during
construction. Locations of erosion control BMPs are identified on the SWPPP Exhibits included
in Appendix B. Maintenance of erosion control BMPs are outlined in Section 4. Individual
BMP fact sheets containing additional information on BMP implementation and maintenance
are included in Appendix I.
Table 3.1 Erosion Control BMPs
CASQA BMP
No. & Name Used? Description
EC-1
Scheduling
Yes Perimeter sediment controls, including controls along the physical
site perimeter and at active storm drain inlets and sediment basins,
shall be implemented before the start of construction for each major
active area of construction, and maintained throughout the duration
of construction activities for each area. Additional sediment control
measures will be taken during the rainy season including additional
temporary debris basins and stockpiling of emergency gravel bags.
Perimeter controls will be added as new active construction areas
come online.
Schedule major grading operations during dry months when
practical. Allow sufficient time prior to the onset of rainfall to
stabilize the soil with vegetation or physical means or to install
sediment trapping devices. When rainfall is predicted, adjust the
construction schedule to allow the implementation of soil
stabilization and sediment treatment controls on all disturbed areas
prior to the onset of rain.
Refer to Appendix H for additional information on BMP scheduling.
EC-2
Preservation of
Existing Vegetation
Yes Construction perimeter fencing will be provided around the on-site
areas of vegetation to be protected as noted by the professional
biologist. These areas shall be clearly marked on the plans at the
time of fencing.
Vegetated portions of the park that are not anticipated to be
replaced/disturbed will be protected.
EC-3
Hydraulic Mulch
Yes All graded pads and slopes that will be re-disturbed after a long
period of inactivity (greater than 14 days during the rainy season)
shall apply hydraulic mulch (2,000 to 3,500 lb/acre, depending on
type of mixture used) as a temporary erosion control until permanent
stabilization can be established (i.e. potted plants, sod, etc.). Mulch
shall be applied in multiple directions to adequately cover soil and
avoid uneven coverage/shadowing. Refer to BMP Fact Sheet EC-3
for types of hydraulic mulches and appropriate mixtures to be used.
Pads and slopes located on site shall be protected with hydraulic
mulch until permanent stabilization can be established.
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CASQA BMP
No. & Name Used? Description
EC-4
Hydroseeding
Yes All final slopes and slopes that will remain undisturbed for periods
greater than 14 days shall be hydroseeded (2 lb of inoculant per
100 lb seed) as a temporary erosion control until permanent
stabilization can be established (i.e. potted plants, sod, etc.).
Mulching is required in conjunction with this BMP if there is not
sufficient time for adequate vegetation to establish. Seed/mulch
shall be applied in multiple directions to adequately cover soil and
avoid uneven coverage/shadowing. Refer to BMP Fact Sheet EC-4
for types of mulches and appropriate seed mixtures to be used.
Slopes located on site shall be protected with hydroseed until
permanent vegetation can be established.
EC-5
Soil Binders
Yes Hydraulic soil stabilizers, such as acrylic copolymer, shall be applied
to all temporary construction slopes at finish grade not ready for
landscaping or permanent stabilization (amount depends on binder
type). The protection shall be maintained until the slopes are at
finish grade and stabilized with permanent landscaping vegetation
or other cover.
Soil binders may be utilized in lieu of Hydraulic Mulch and
Hydroseeding described above.
EC-6
Straw Mulch
No Not a proposed temporary BMP.
EC-7
Geotextiles and
Mats
Yes Geotextiles and mats, or rolled erosion control products may be
used to cover the soil surface to reduce erosion from rainfall impact,
to stabilize soils until vegetation is established, in channels with
flows exceeding 3.3 ft/s, on stockpiles or other disturbed areas.
During the rainy season, stockpiles will be covered at all times when
not in use. During the dry season, they shall be covered prior to the
onset of precipitation.
Stockpiles will be located away from drainage courses and storm
drain inlets, in accordance with Stockpile Management (WM-3).
The Contractor shall limit the use of plastic materials when more
sustainable, environmentally friendly alternatives exist. Where plastic
materials are deemed necessary, the Contractor shall consider the
use of plastic materials resistant to solar degradation.
EC-8
Wood Mulch
No Not a proposed temporary BMP.
EC-9
Earth Dikes &
Drainage Swales
No Not a proposed temporary BMP.
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CASQA BMP
No. & Name Used? Description
EC-10
Velocity Dissipation
Devices
Yes Outlet protections, or velocity dissipation devices, shall be used at
new outlets of pipes, drains, culverts, slope drains, diversion ditches,
swales, conduits, or channels. This includes outlets at the bottom of
mild to steep slopes, discharge outlets that carry continuous flows or
short, intense flows, and areas where lined conveyances discharge
to unlined conveyances.
Outlet protections/rip-rap will be implemented at all existing and
new outlets prior to discharging into swales or channels at all outlet
locations.
EC-11
Slope Drains
Yes Slope drains shall be used where concentrated flow of surface runoff
must be conveyed down a slope. This includes, drainage for top of
slope diversion dikes and swales, drainage for top of cut and fill
slopes where water can accumulate, and emergency spillway for a
sediment basin.
Slope Drains will be implemented on the slope flowing towards the
proposed dog park to safely convey flow to avoid erosion.
EC-12
Streambank
Stabilization
No Not a proposed temporary BMP.
EC-13
(reserved)
Reserved for future use.
EC-14
Compost Blankets
No Not a proposed temporary BMP.
EC-15
Soil Preparation/
Roughening
No Not a proposed temporary BMP.
EC-16
Non-Vegetative
Stabilization
No Not a proposed temporary BMP.
3.3.2. Sediment Control BMPs
Sediment controls are structural measures that are intended to complement and enhance the
soil stabilization/erosion control measures and reduce sediment discharges from construction
areas. Sediment controls are designed to intercept and filter out soil particles that have been
detached and transported by the force of water. This project will incorporate minimum
temporary sediment control requirements, temporary sediment control measures required by
the contract documents, and other measures selected by the contractor.
Temporary sediment control materials will be maintained on-site throughout the duration of
the project, to allow implementation of temporary sediment controls in the event of predicted
rain, and for rapid response to failures or emergencies, in conformance with requirements and
as described in this SWPPP. This includes implementation requirements for active areas and
non-active areas before the onset of anticipated rain events.
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Locations of sediment control BMPs are identified on the SWPPP Exhibits included in Appendix
B. Maintenance of sediment control BMPs are outlined in Section 4. Individual BMP fact
sheets containing additional information on BMP implementation and maintenance are
included in Appendix I.
Table 3.2 Sediment Control BMPs
CASQA BMP
No. & Name Used? Description
SE-1
Silt Fence
Yes Silt fencing will be installed along the downhill boundary of the
project site before any soil disturbing activities can take place. This
BMP can also be used below the toe or down slope of erodible
slopes. Measures SE-5 and/or SE-6 will also be employed with silt
fencing.
Silt fencing shall be used along perimeter of site and at toe of
slopes as shown in Appendix B2 – SWPPP Wall Maps.
SE-2
Sediment Basin
No Not a proposed temporary BMP.
SE-3
Sediment Trap
No Not a proposed temporary BMP.
SE-4
Check Dams
No Not a proposed temporary BMP.
SE-5
Fiber Rolls
Yes Fiber rolls shall be used along the toe, top, face, or at grade breaks
of exposed slopes, along the perimeter of the project, down slope of
exposed soil areas, or around temporary stockpiles. Fiber rolls may
be used in lieu of or in conjunction with Gravel Bag Berms (SE-6).
Fiber rolls will be implemented along the face of slopes in
conjunction with hydroseeding/soil binders or other erosion control
measures. The vertical spacing of the fiber rolls will be every 20 feet
for slopes 0-25%, every 15 feet for slopes 25-50%, and 10 feet for
slopes over 50%.
SE-6
Gravel Bag Berms
Yes Gravel bag berms shall be used below the toe of exposed slopes, as
sediment traps at culvert/pipe outlets, along the site perimeter,
around temporary stockpiles, parallel to roadways, chevrons in
streets, or as check dams along mildly sloping construction roads.
May be utilized in lieu of or in conjunction with Sandbag Barriers
(SE-8) and/or Fiber Rolls (SE-5).
SE-7
Street Sweeping &
Vacuuming
Yes Visible sediment tracking onto public and private streets from the
project site shall be inspected and swept on a daily basis,
particularly at points of egress, to prevent sediments from entering
storm drains and receiving waters. All immediate access roads shall
also be swept prior to any rain event.
Street sweeping will be performed in order to keep parking lots and
Hidden Valley Road free of sediments tracked from the project site.
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CASQA BMP
No. & Name Used? Description
SE-8
Sandbag Barrier
Yes Sandbag barriers shall be used below the toe of exposed slopes, as
sediment traps at culvert/pipe outlets, along the site perimeter,
around temporary stockpiles, parallel to roadways, chevrons in
streets, or as check dams along mildly sloping construction roads.
May be utilized in lieu of or in conjunction with Gravel Bag Berms
(SE-7) and/or Fiber Rolls (SE-5).
SE-9
Straw Bale Barrier
No Not a proposed temporary BMP.
SE-10
Storm Drain Inlet
Protection
Yes Active storm drain inlets shall be protected prior to the start of
construction and maintained throughout the duration of construction
activities. Secondary sediment control measures, such as chevrons,
are usually required upstream of the inlet to maximize the
effectiveness of this BMP. Geotextiles and Mats (EC-7), Silt Fences
(SE-1), Fiber Rolls (SE-6), Gravel Bag Berms (SE-7), and Biofilter
Bags (SE-14) may be utilized for inlet protection. Refer to Fact Sheet
SE-10 in Appendix I for types, design criteria and installation of inlet
protection measures.
SE-11
Active Treatment
Systems (ATS)
No Not a proposed temporary BMP.
SE-12
Temporary Silt Dike
No Not a proposed temporary BMP.
SE-13
Compost Socks &
Berms
No Not a proposed temporary BMP.
SE-14
Biofilter Bags
No Not a proposed temporary BMP.
3.3.3. Tracking Control BMPs
Tracking controls shall be considered and implemented year round and throughout the
duration of the project, at all access (ingress/egress) points to the project site where vehicles
and/or equipment may track sediment from the construction site onto public or private
roadways.
Locations of tracking control BMPs are identified on the SWPPP Exhibit/Erosion Control Plans
included in Appendix B. Maintenance of tracking control BMPs are outlined in Section 4.
Individual BMP fact sheets containing additional information on BMP implementation and
maintenance are included in Appendix I.
Table 3.3 Tracking Control BMPs
CASQA BMP
No. & Name Used? Description
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CASQA BMP
No. & Name Used? Description
TR-1
Stabilized
Construction
Entrance/Exit
Yes Construction entrances shall be stabilized at all points of site ingress
and egress. The pad of aggregate will have minimum dimensions
of 50 feet in length and 30 feet in width. Rumble racks (i.e. shaker
plates) will be included to provide additional sediment removal and
reduce potential for off-site tracking of sediment.
There are two proposed ingress/egress route at this time.
TR-2
Stabilized
Construction
Roadway
Yes Areas that are graded for construction vehicle transport and parking
shall be stabilized. Roadway can be stabilized using aggregate,
asphalt concrete, or concrete.
TR-3
Entrance/Outlet
Tire Wash
Yes If tracking is a continued problem, the construction site entrance will
be equipped with a wheel wash facility to remove excess soil and
debris from truck tires prior to leaving the site.
3.3.4. Wind Erosion Control BMPs
Wind erosion control BMPs shall be considered and implemented year-round and throughout
the duration of the project on all disturbed soils on the project site that are subject to wind
erosion, and when significant wind and dry conditions are anticipated during project
construction. The objective of wind controls is to prevent the transport of soil from soil-
disturbed areas of the project site, off-site by wind.
Locations of wind erosion control BMPs are identified on the SWPPP Exhibit/Erosion Control
Plans included in Appendix B. Maintenance of wind erosion control BMPs are outlined in
Section 4. Individual BMP fact sheets containing additional information on BMP
implementation and maintenance are included in Appendix I.
Table 3.4 Wind Erosion Control BMPs
CASQA BMP
No. & Name Used? Description
WE-1
Wind Erosion
Control
Yes Dust control measures shall be used to stabilize soil from wind
erosion, primarily in the form of construction watering (i.e. wet
suppression). This BMP should be considered in the following areas
of activity: (1) construction vehicle traffic on unpaved roads, (2)
drilling and blasting activities, (3) soil and debris storage piles, (4)
batch drop from front-end loaders, (5) unstabilized soil, and (6) final
grading. The project site should be inspected daily to determine the
need to implement this BMP and water trucks will be on-site during
all active grading activities.
In addition, wind screen fencing will be implemented along the
perimeter of the project site.
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3.4. NON-STORM WATER AND MATERIAL MANAGEMENT
The General Permit defines non-storm water discharges as follows: "Non-storm water
discharges consist of all discharges from a municipal storm water conveyance which do not
originate from precipitation events (i.e., all discharges from a conveyance system other than
storm water)." All efforts will be made to the project to reduce or eliminate non-storm water
discharges from the site with the use of Non-Storm Water Management BMPs, Materials and
Waste Management BMPs, in addition to good housekeeping measures.
3.4.1. Non-Storm Water Management BMPs
There are three types of non-storm water discharges as specified in the Permit:
Illicit discharges - unplanned
Non-prohibited - planned and unplanned
NPDES permitted - planned
Table 3.5 Non-Storm Water Management BMPs
CASQA BMP
No. & Name Used? Description
NS-1
Water
Conservation
Practices
Yes Water conservation practices shall be implemented to prevent
erosion and the transport of pollutants off-site. Water equipment
shall be maintained in good working order, water truck filling area
will be stabilized, water leaks shall be repaired promptly, and
vehicle / equipment washing is discouraged.
NS-2
Dewatering
Operations
No Not a proposed temporary BMP.
NS-3
Paving & Grinding
Operations
Yes In order to reduce the potential for the transport of pollutants in
storm water runoff from paving operations, paving shall be avoided
within 72 hours of a forecast significant storm event. Paving and
grinding materials shall be stored away from drainage courses.
Train employees and sub-contractors in pollution prevention and
reduction. Disposal of PCC (Portland cement concrete) and AC
(asphalt concrete) waste should be in conformance with WM-8,
Concrete Waste Management.
NS-4
Temporary Stream
Crossing
No Not a proposed temporary BMP.
NS-5
Clear Water
Diversion
No Not a proposed temporary BMP.
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CASQA BMP
No. & Name Used? Description
NS-6
Illicit Connection/
Discharge
Yes The contractor shall regularly inspect the project site for illicit
connections and discharges off-site (quarterly at a minimum).
Notify the owner of any illicit connections and illegal dumping or
discharge incidents at the time of discovery and document in
SWPPP. For illicit connections or discharges to the storm drain
system, notify the local storm water management agency. For illegal
dumping, notify the local law enforcement agency.
NS-7
Potable Water/
Irrigation
No Not a proposed temporary BMP.
NS-8
Vehicle and
Equipment
Cleaning
Yes Vehicles and equipment will be washed off-site at a proper wash
facility. The contractor should not permit any vehicle or equipment
washing at the job site, unless the wash water can be appropriately
captured and treated. If located on-site, location shall be identified
on the SWPPP Exhibit(s) by the contractor depending on phase by
construction. Cleaning of vehicles and equipment with soap,
solvents or steam should not occur on the project site unless
resulting wastes are fully contained and disposed of. Resulting
wastes should not be discharged or buried, and must be captured
and recycled or disposed according to the requirements of WM-10,
Liquid Waste Management or WM-6, Hazardous Waste
Management, depending on the waste characteristics. Minimize use
of solvents. Use of diesel for vehicle and equipment cleaning is
prohibited.
NS-9
Vehicle and
Equipment Fueling
Yes Vehicles and equipment will be fueled off-site at a proper fueling
facility. If on-site fueling is the only practical alternative, it will be
conducted within designated maintenance areas (at least 50 feet
away from drainage facilities and watercourses) in order to enable
careful management. The area shall be bermed. Spill kits shall be
placed nearby. Nozzles used in vehicle and equipment fueling
should be equipped with an automatic shutoff to control drips.
Fueling operations should not be left unattended. If located on-site,
location shall be identified on the SWPPP Exhibit(s) by the contractor
depending on phase by construction.
NS-10
Vehicle and
Equipment
Maintenance
Yes Vehicles and equipment will be repaired off-site at a proper
maintenance facility. If on-site repair is the only practical
alternative, it will be conducted within designated maintenance
areas (at least 50 feet away from drainage facilities and
watercourses) in order to enable careful management. If located
on-site, location shall be identified on the SWPPP Exhibit(s) by the
contractor depending on phase by construction. Drip pans/ tarp
will be placed under vehicles and equipment not in use for long
periods. For long-term projects, consider using portable tents or
covers over maintenance areas if maintenance cannot be
performed offsite.
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CASQA BMP
No. & Name Used? Description
NS-11
Pile Driving
Operations
No Not a proposed temporary BMP.
NS-12
Concrete Curing
Yes Avoid overspraying of curing compounds. Should runoff be
generated, cure water shall be directed away from inlets to areas
for infiltration or collection and disposal. Protect drain inlets prior to
the application of curing compounds. See WM-8 Concrete Waste
Management.
NS-13
Concrete Finishing
Yes Should runoff be generated, water from blasting operations shall be
directed away from inlets to areas for infiltration or collection and
disposal. Debris from blasting operations should be swept up at the
end of each shift. Refer to WM-8, Concrete Waste Management for
disposal of concrete debris. Protect inlets during sandblasting
operations. Refer to SE-10, Storm Drain Inlet Protection.
NS-14
Material Over
Water
No Not a proposed temporary BMP.
NS-15
Demolition
Adjacent to Water
No Not a proposed temporary BMP.
NS-16
Temporary Batch
Plants
No Not a proposed temporary BMP.
3.4.2. Material and Waste Management BMPs
Waste management consists of implementing procedural and structural BMPs for collecting,
handling, storing and disposing of wastes generated by a construction project to prevent the
release of waste materials into storm water discharges. Wastes are going to be generated
during construction; however, the methods in which the wastes are collected, stored, and
removed will determine the success of the waste management activities. Construction site
wastes can range from residues collected from non-storm water discharges (i.e., paint
removal) to general site litter and debris (i.e., empty marker paint cans).
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Table 3.6 Material and Waste Management BMPs
CASQA BMP
No. & Name Used? Description
WM-1
Material Delivery
and Storage
Yes All construction materials will be delivered to and stored in
designated areas at the construction site. The main loading,
unloading, and access areas shall be located away from storm
drain facilities and drainage courses. The contractor will construct
enclosures or flow barriers around these areas to prevent storm
water flows and pollutants from entering storm drains or receiving
waters. Berms, palettes, secondary containment measures and/or
storage sheds shall be used where applicable. Material storage
location shall be identified on the SWPPP Exhibit(s) by the contractor
depending on phase by construction.
WM-2
Material Use
Yes All materials shall be used according to the directions provided on
their labels. Manufacturer’s instructions shall be followed and
employees will be provided training on proper material use.
Material Safety Data Sheets (MSDS) should be available on-site for
all materials stored that have the potential to effect water quality.
Do not over-apply fertilizers, herbicides, and pesticides. Prepare
only the amount needed. Follow the recommended usage
instructions. Dispose of latex paint and paint cans, used brushes,
rags, absorbent materials, and drop cloths, when thoroughly dry
and are no longer hazardous, with other construction debris. Mix
paint indoors or in a containment area. Never clean paintbrushes
or rinse paint containers into a street, gutter, storm drain, or
watercourse. Dispose of any paint thinners, residue, and sludge(s)
that cannot be recycled, as hazardous waste. Keep ample supplies
of spill cleanup material near use areas in accordance with WM-4,
Spill Prevention and Control.
WM-3
Stockpile
Management
Yes Sediment stockpiles will be located away from drainage courses
(minimum of 50 ft separation recommended) and protected from
run-on using temporary sediment barriers such as compost berms
(SE-13), temporary silt dikes (SE-12), fiber rolls (SE-5), silt fences
(SE-1), sandbags (SE-8), gravel bags (SE-6), or biofilter bags (SE-
14). Refer to the individual fact sheet for each of these controls for
installation information. Geotextiles and mats (EC-7) may also be
utilized for stockpile protection. Stockpiles shall be contained when
not in use and prior to the onset of precipitation. Construction
bagged materials stockpiles, such as cold mix, will be covered and
placed on pallets and under cover.
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CASQA BMP
No. & Name Used? Description
WM-4
Spill Prevention
and Control
Yes Spills will be cleaned up immediately. Hazardous materials will be
stored in covered containers. Spill and cleanup kits should be
readily available on-site. Proper spill cleanup procedures and spill
reporting instructions shall be posted in an accessible and visible
location. Hosing down of spills is prohibited. Use a rag for small
spills on paved surfaces, a damp mop for general cleanup, and
absorbent material for larger spills. If the spilled material is
hazardous, then the used cleanup materials are also hazardous and
must be sent to either a certified laundry (rags) or disposed of as
hazardous waste. Appropriate spill response personnel shall be
trained.
WM-5
Solid Waste
Management
Yes Waste collection areas shall be designate on-site and the areas
should provide covers or secondary containment. Trash and debris
should also be collected on a daily basis. The disposal of liquid or
hazardous wastes in this area should not be allowed. Trash
receptacles will also be provided throughout the project site to
prevent littering. Arrange for regular waste collection before
containers overflow. Do not hose out dumpsters on the construction
site. Leave dumpster cleaning to the trash hauling contractor.
WM-6
Hazardous Waste
Management
Yes Wastes should be stored in sealed containers constructed of a
suitable material and should be labeled as required by Title 22
CCR, Division 4.5 and 49 CFR Parts 172, 173, 178, and 179.
Hazardous wastes shall be disposed of in accordance to federal,
state, and local regulations. Temporary containment facility should
provide for a spill containment volume equal to 1.5 times the
volume of all containers able to contain precipitation from a 25
year storm event, plus the greater of 10% of the aggregate volume
of all containers or 100% of the capacity of the largest tank within
its boundary, whichever is greater. Paint washouts will be provided
where painting activities occur. Employees will be trained
appropriately on hazardous waste management.
WM-7
Contaminated Soil
Management
No Prevent leaks and spills. Look for contaminated soil as evidenced by
discoloration, odors, differences in soil properties, abandoned
underground tanks or pipes, or buried debris. Test suspected soils
at an approved certified laboratory. Procure all permits and
licenses, pay all charges and fees, and give all notices necessary
and incident to the due and lawful prosecution of the work,
including registration for transporting vehicles carrying the
contaminated material and the hazardous material. Educate
employees and subcontractors in identification of contaminated soil
and on contaminated soil handling and disposal procedures.
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CASQA BMP
No. & Name Used? Description
WM-8
Concrete Waste
Management
Yes Whenever possible, concrete trucks will be washed out off-site in
designated areas. If washout must occur on-site, wash water will be
contained in a temporary washout facility. Washout should be lined
so there is no discharge into the underlying soil. Upon completion
of the concrete work, the contractor will break up, remove, and
haul away solid concrete that has accumulated in the washout pit.
Concrete shall be removed when washout pit reaches 75%
capacity. Stockpile concrete demolition waste in accordance with
BMP WM-3, Stockpile Management.
WM-9
Sanitary/Septic
Waste
Management
Yes All sanitary wastes will be collected and managed through the use
of portable toilet facilities. Portable toilets will be transported to
and from the construction site by a licensed contractor. Portable
toilets shall be located away from drainage courses (recommended
minimum of 50 ft), and equipped with containment. No sanitary
wastes will be disposed of on-site. If a spill does occur from a
temporary sanitary facility, follow federal, state and local
regulations for containment and cleanup.
WM-10
Liquid Waste
Management
Yes Employees will be instructed on how to safely differentiate between
non-hazardous liquid waste and potential or known hazardous
liquid waste, as well as proper storage and disposal procedures.
Liquid wastes will not be discharged to any storm drainage
structure, waterway, or receiving water. Liquid wastes generated as
part of an operational procedure, such as water-laden dredged
material and drilling mud, should be contained and not allowed to
flow into drainage channels or receiving waters prior to treatment.
Apply NS-8, Vehicle and Equipment Cleaning for managing wash
water and rinse water from vehicle and equipment cleaning
operations.
3.5. POST-CONSTRUCTION STORM WATER MANAGEMENT MEASURES
Based on the operational activities of the project site (post-construction), storm water
management controls or BMPs will be implemented to reduce the amount of pollutants in
storm water discharge. The purpose for post-construction storm water management is to
eliminate and/or control the discharge of pollutants in storm water runoff from the site once
the construction activities are complete and the site is fully stabilized. Developments and
redevelopments generally alter the existing drainage course, increase the area of impervious
surface, and create potential sources for runoff contamination. The General Permit requires
the implementation of post-construction BMPs to minimize the impacts of these changes to the
site. Post-construction BMPs can come in two forms, non-structural or structural control
measures.
Non-structural controls are practices that are specifically intended to reduce or prevent the
generation of storm water pollutants. They are generally implemented to address the problem
at the source and do not require any structural changes to the facility. Structural control
measures may be necessary to control any pollutants that are still present in the storm water
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after the non-structural controls have been implemented. These types of controls are physical
features that control and prevent storm water pollution. They can range from preventive
measures to treatment systems. Structural controls require the construction of a physical
feature or barrier. A Post-Construction Plan is included in Appendix B.
The Poinsettia Community Park project is exempt from the post-construction water balance
standards outlined in Section XIII of the General Permit, since the project is subject to the post-
construction requirements of the Phase I municipal separate storm sewer system (MS4) permit
approved for the region (San Diego RWQCB Order No. R9-2009-0002).
Table 3.7 Non-Structural Source Control BMPs
BMP Name Description
USE EFFICIENT
IRRIGATION
SYSTEMS AND
LANDSCAPE
DESIGN
Rain shutoff devices will be required to prevent irrigation after precipitation.
Design of the irrigation system is to take into account each landscaped area’s
specific water requirements. The use of flow reducers or shutoff valves triggered
by a pressure drop to control water loss in the event of broken sprinkler heads or
lines as well as other comparable, equally effective, methods to reduce irrigation
water runoff.
DESIGNING
OUTDOOR
MATERIAL
STORAGE AREAS
TO REDUCE
POLLUTION
INTRODUCTION
Hazardous materials with the potential to contaminate urban runoff shall either
be: 1) placed in an enclosure such as a cabinet, shed, or similar structure that
prevents contact with runoff or spillage to the stormwater conveyance system; or
2) protected by secondary containment structures such as berms, dikes, or curbs.
The storage area shall be paved and sufficiently impervious to contain leaks and
spills, and shall have a roof or awning to minimize direct precipitation within the
secondary containment area.
Table 3.8 Structural Source Control BMPs
BMP Name Description
PROVIDE STORM
DRAIN SYSTEM
STENCLING AND
SIGNAGE
Curb stenciling for storm drain inlets associated with the project shall say "No
Dumping- I Live Downstream" or equivalent massage as desired by the City of
Carlsbad.
DESIGN TRASH
STORAGE AREAS
TO REDUCE
POLLUTION
INTRODUCTION
Trash enclosures will be on an impervious surface designed not to allow run-on
from adjoining areas, screened or walled to prevent off-site transport of trash;
and trash containers are to be provided with attached lid that exclude rain or with
a roof or awning in order to minimize direct precipitation intrusion.
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Table 3.9 Structural Treatment Control BMPs
BMP Name Description
PERVIOUS
CONVRETE &
PERVIOUS PAVERS
New walkways and hardscape will be constructed of pervious concrete and
pervious pavers to minimize impervious footprint.
Refer to the project-specific SWMP for further details on post-construction BMP operation and
maintenance.
Short-Term Funding
During construction, City of Carlsbad will be responsible for inspecting and maintaining all
BMPs within the common areas of development and streets.
Long-Term Funding
City of Carlsbad shall be responsible for long-term funding for BMP maintenance. City of
Carlsbad shall oversee that adequate funding for BMP maintenance is provided including
annual maintenance fees and long-term maintenance reserve funds.
The Executive Officer of the San Diego RWQCB will be notified when the responsibilities for
these post-construction BMPs have been transferred to another maintenance organization.
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4. BMP INSPECTION, MAINTENANCE, AND
RAIN EVENT ACTION PLANS (REAPS)
4.1. BMP INSPECTION AND MAINTENANCE
The General Permit requires routine weekly inspections of all BMPs and daily inspections
during rain events to ensure that all BMPs are implemented and maintained according to the
SWPPP. In addition, BMP inspections and maintenance shall be performed 72 hours prior to
a forecasted storm event. Inspections shall include the following:
Is there any evidence of spills (e.g., leaks, staining, odors, sheen, etc.)? Are there
adequate supplies (i.e., spill kits) to clean up spills?
Are trash receptacles and other waste disposal practices adequate? Are they kept in a
clean and orderly manner?
Are erosion and sediment control BMPs installed properly? Are they effective in
controlling erosion and sediment from the site?
Are materials properly stored, covered, elevated on pallets or have adequate
secondary containment to prevent contact with storm water and run-on?
Is concrete washout being performed in the designated washout pit or area? Is the
capacity and structural integrity of the washout facility being properly maintained?
Have drainage patterns changed as a result of grading operations? Have the BMPs
been adjusted accordingly?
Are exposed areas stabilized in a timely manner after completion of construction
activities? Are inactive areas properly stabilized?
Are employees, contractors, and subcontractors properly trained?
Additional maintenance of BMPs may include the following:
Removal of sediment from barriers, check dams, berms, traps, basins and other
sedimentation devices (remove when sediment accumulation reaches one-half the
design storage volume);
Remove standing water within 96 hours after accumulation (in accordance with BMP
NS-2, Dewatering Operations);
Replacement or repair of worn or damaged silt fence fabrics, fiber rolls, and gravel
bags/sandbags;
Replacement or repair of damaged structural controls;
Repair of damaged soil stabilization measures;
Other control maintenance as defined in each BMP fact sheet (see Appendix I).
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Completed inspection checklists, photographs, and other maintenance records shall be
documented in the SWPPP (Appendix P) and Annual Reports (Appendix F). Forms that may be
utilized to document inspections are included in Appendix P.
4.2. RAIN EVENT ACTION PLANS
A Rain Event Action Plan (REAP) is a document designed to protect all exposed portions of the
construction site within 48 hours prior to any likely precipitation event. REAPs are prepared by
the QSP based on the predicted rain event and construction phase, which include:
Grading and Land Development;
Streets and Utilities;
Vertical Construction; and
Final Landscaping and Site Stabilization.
REAPs are also required for project sites where construction activities are indefinitely halted or
postponed (“inactive sites”).
REAPs are required for Risk Level 2 and 3 projects, and should be designed to ensure that the
discharger has adequate materials, staff, and time to implement erosion and sediment control
measures that are intended to reduce the amount of sediment and other pollutants generated
for the active site. REAPs are to be completed by the QSP when there is a forecast of a likely
precipitation event in the project area according to the National Oceanic and Atmospheric
Administration (NOAA) forecast website (http://www.crh.noaa.gov/lot/severe/wxterms.php).
A “likely precipitation event” is any weather pattern that is forecast to have a 50% or greater
chance of precipitation in the project area. Forecasts are normally issued for 12-hour time
periods. It is recommended that the NOAA forecast be printed and saved where REAPs are
required for documentation of the forecast. Copies shall be saved in Appendix Q.
The project site location to be used for obtaining forecast from the NOAA website is:
Carlsbad, 92011
REAP templates are included in Appendix Q. Copies of completed REAPs shall be documented
in the SWPPP (Appendix Q) and the Annual Reports (Appendix F).
Note: REAPs are to be prepared and implemented in addition to the pre-storm event visual
inspection requirements, described further in Section 7.5.
REAPs are not required for Risk Level 1 dischargers.
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5. TRAINING
5.1. OVERVIEW
Training is imperative to the success of the BMPs identified in the SWPPP. Adequate training is
required if BMPs are to be installed and maintained properly. The General Permit requires that
all elements of the SWPPP be implemented under the direction of a QSP. The QSP may
delegate tasks to trained employees provided adequate supervision and oversight by the QSP.
A construction storm water pollution prevention training program should be held for all
construction personnel.
5.2. TRAINING REQUIREMENTS
In accordance with the General Permit Section VII, individuals responsible for SWPPP
preparation (Qualified SWPPP Developer, or QSD), SWPPP implementation and permit
compliance (Qualified SWPPP Practitioner, or QSP), as well as personnel responsible for
installation, inspection, maintenance, and repair of BMPs shall be appropriately trained.
Training can include both formal and informal training, shall be on an on-going basis (e.g.,
quarterly, annually), and shall be documented in the Training Document Log in Appendix J of
this SWPPP.
5.2.1. Qualified SWPPP Developer (QSD)
The discharger shall ensure that SWPPPs are written, amended and certified by a Qualified
SWPPP Developer (QSD) that has one of the following registrations or certifications, and
appropriate experience, as required for:
A California registered professional civil engineer;
A California registered professional geologist or engineering geologist;
A California registered landscape architect;
A professional hydrologist registered through the American Institute of Hydrology;
A Certified Professional in Erosion and Sediment Control (CPESCTM) registered through
Enviro Cert International, Inc.;
A Certified Professional in Storm Water Quality (CPSWQTM) registered through Enviro
Cert International, Inc.; or
A professional in erosion and sediment control registered through the National
Institute for Certification in Engineering Technologies (NICET);
In addition, effective September 1, 2011, the QSD shall have attended a SWRCB-sponsored
or approved QSD training course. The name and telephone number of the currently
designated QSD shall be listed in Section 6 in the SWPPP, and proof of training shall be
documented in Appendix J.
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5.2.2. Qualified SWPPP Practitioner (QSP)
The discharger shall ensure that all BMPs required by this General Permit are implemented by
a Qualified SWPPP Practitioner (QSP). A QSP is a person responsible for non-storm water and
storm water visual observations, sampling and analysis. A QSP shall either be a QSD or have
one of the following certifications:
A certified erosion, sediment and storm water inspector registered through Enviro Cert
International, Inc.; or
A certified inspector of sediment and erosion control registered through Certified
Inspector of Sediment and Erosion Control, Inc.
Similar to the QSD requirements, the QSP shall have attended a SWRCB-sponsored or
approved QSP training course effective September 1, 2011. The name and telephone
number of the currently designated QSP shall be listed in Section 6 in the SWPPP, and proof
of training shall be documented in Appendix J.
5.2.3. Employee & Subcontractor Training
Employee/subcontractor training, like maintenance of a piece of equipment, is not so much a
best management practice as it is a method by which to implement BMPs. This section
highlights the importance of training and of integrating the elements of employee/
subcontractor training from the individual source controls into a comprehensive training
program as part of this SWPPP. The focus of this section is more general, and includes the
overall objectives and approach for assuring employee/subcontractor training in storm water
pollution prevention.
The QSP will periodically advise on-site personnel of their responsibility to participate in
reducing pollutants and sediment discharges from the site. The QSP is also responsible for
training personnel and subcontractors who are responsible for the implementation and
maintenance of the pollution control systems. This training may consist of workshops,
meetings, tailgate sessions, videos, presentations and handout materials (see attached
Training Document Log, Appendix J). All training shall be documented and filed with the
SWPPP.
Throughout the duration of the project, different Subcontractors will be used. All
Subcontractors shall be informed of the measures required in the SWPPP and the Construction
General Permit prior to commencement of work. It is strongly encouraged that the Contractor
use and modify as necessary the Sample Subcontractor Notification Letter and log (see
Appendix M) to ensure compliance with all SWPPP requirements for all the Subcontractors.
In addition to training, it is strongly encouraged that the QSP periodically informs and reminds
its employees of its position to protect the local waterways from pollutants through
memorandums attached to paychecks or other means of distribution. The attached
Memorandum for Employees should be modified as necessary to present these objectives to
all employees.
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Objectives
Employee/subcontractor training should be based on four objectives:
Promote a clear identification and understanding of the problem, including activities
with the potential to pollute storm water.
Identify solutions (BMPs).
Promote employee/subcontractor ownership of the problems and the solutions.
Integrate employee/subcontractor feedback into training and BMP implementation.
Approach
Integrate training regarding storm water quality management with existing training programs
that may be required for your business by other regulations such as: the Illness and Injury
Prevention Program (IIPP) (SB 198) (California Code of Regulations Title 8, Section 3203), the
Hazardous Waste Operations and Emergency Response (HAZWOPER) Standard (29 CFR
1910.120), the Spill Prevention Control and Countermeasure (SPCC) Plan (40 CFR 112), and
the Hazardous Materials Management Plan (Business Plan) (California Health and Safety
Code, Section 6.95).
Businesses, particularly smaller ones that may not be regulated by Federal, State or local
regulations may use the information in this plan to develop a training program to reduce their
potential to pollute storm water.
Use the quick reference on disposal alternatives (Appendix O) to train employee/
subcontractors in proper and consistent methods for disposal.
Consider posting the quick reference table around the job site or in the on-site office trailer to
reinforce training.
Train employee/subcontractors in standard operating procedures and spill cleanup techniques
described in the fact sheets. Employee/subcontractors trained in spill containment and
cleanup should be present during the loading/unloading and handling of materials.
Personnel who use pesticides should be trained in their use. The California Department of
Pesticide Regulation and County Agricultural Commissioners license pesticide dealers, certify
pesticide applicators and conduct on-site inspections.
Proper education of off-site contractors is often overlooked. The conscientious efforts of well
trained employee/subcontractors can be lost by unknowing off-site contractors, so make sure
they are well informed about what they are expected to do on-site.
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6. RESPONSIBLE PARTIES AND OPERATORS
6.1. RESPONSIBLE PARTIES
Table 6.1 List of Responsible Parties
Project Owner /
Legally Responsible
Person (LRP)
City of Carlsbad
1635 Faraday Avenue
Carlsbad, CA 92008
760-602-2751
Kevin Crawford, City Manager
Kevin.Crawford@carlsbadca.gov
Authorized Signatory
Company Name:
Address:
City, State, Zip:
Telephone:
Name, Title:
Email, Phone:
Qualified SWPPP
Developer (QSD)
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 170
San Diego, CA 92122
858.554.1500
Emma Smith, CPSWQ, CPESC, QSD, Environmental Scientist
esmith@fuscoe.com
Qualified SWPPP
Practitioner (QSP)
Company Name:
Address:
City, State, Zip:
Telephone:
Name, Title:
Email, Phone:
6.2. CONTRACTOR LIST
A list of contractors and subcontractors is provided in Appendix L.
Table 6.2 List of Contractors
General Contractor
Company Name:
Address:
City, State, Zip:
Telephone:
Name, Title:
Email, Phone:
Responsible for overall site conditions and SWPPP implementation,
maintenance, BMPs, reporting, and retention of records.
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7. CONSTRUCTION SITE MONITORING PROGRAM
(CSMP)
7.1. PURPOSE
The General Permit (Attachments C, D, E; Section I.1.a) requires a written site specific
Construction Site Monitoring Program (CSMP) be developed by each discharger prior to the
commencement of construction activities, and be revised as necessary to reflect project
revisions and that the CSMP be included with the SWPPP.
The CSMP is developed to meet the specific requirements and objectives identified in the
General Permit for each risk level. Additional information to support the CSMP is included of
the appendices to this SWPPP, including drainage and sampling location maps (Appendix B),
sample forms (Appendix T), guidance on field measurements (Appendix R) and additional
information on sampling methods (Appendix S) and ad hoc reporting (Appendix U).
Additionally, the CSMP describes applicable NAL/NEL thresholds for the site.
7.2. APPLICABILITY OF PERMIT REQUIREMENTS
General Permit monitoring requirements for storm water and non-storm water visual
observations (inspections); storm water and non-storm water sample collection; and receiving
water monitoring shall be described in the CSMP. Requirements vary based on the project risk
level. The CSMP shall identify the applicable monitoring requirements; and, inspection,
observation, and sample collection frequency based on the project’s risk level. The following
table summarizes the sampling requirements by risk level:
Table 7.1 Monitoring Requirements by Risk Level
Visual Inspection Sample Collection
Risk Level
Quarterly Non-
Storm Water
Discharge
Baseline REAP Daily Storm
BMP Post Storm
Storm
Water
Discharge
Receiving
Water
1 X X X X
2 X X X X X X
3 X X X X X X X 1
1 When numeric effluent level (NEL) exceeded
The Risk Level for the Poinsettia Community Park project is Risk Level 1.
Based on the project’s Risk Level, the following monitoring requirements have been identified:
Visual Monitoring/Inspections
Visual monitoring for non-storm water discharges (quarterly)
Baseline pre-rain event inspection (within 48 hours of qualifying rain events)
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BMP inspections (weekly and every 24 hours during extended storm events)
Post-rain event inspection (within 2 business days after qualifying rain events)
Sampling & Analysis
Non-visible pollutants, spills and/or BMP failures (within first 2 hours of discharge from
site)
Other (as required by dewatering permits, RWQCB or TMDLs)
7.3. NUMERIC ACTION LEVELS, EFFLUENT LIMITATIONS, AND DISCHARGE
PROHIBITIONS
Section V.A of the General Permit identifies the following Narrative Effluent Limitations that
apply to all project sites (Risk Levels 1, 2 and 3):
Storm water discharges and authorized non-storm water discharges regulated by this
General Permit shall not contain a hazardous substance equal to or in excess of
reportable quantities established in 40 C.F.R. §§ 117.3 and 302.4, unless a separate
NPDES Permit has been issued to regulate those discharges.
Dischargers shall minimize or prevent pollutants in storm water discharges and
authorized non-storm water discharges through the use of controls, structures, and
management practices that achieve BAT for toxic and non-conventional pollutants and
BCT for conventional pollutants
The General Permit contains technology-based Numeric Action Levels (NALs) for pH and
turbidity at all Risk Level 2 and 3 sites. Numeric action levels are essentially numeric
benchmark values for certain parameters that, if exceeded in effluent sampling, trigger the
discharger to take actions. The primary purpose of NALs is to assist the dischargers in
evaluating the effectiveness of the on-site BMPs. Exceedance of an NAL does not itself
constitute a violation of the General Permit. However, if no corrective action is taken as
required by the General Permit, a violation may result.
Risk Level 2 and 3 dischargers are subject to the following NALs:
pH NAL of 6.5 – 8.5
Turbidity NAL of 250 NTU
In addition to the NALs, Risk Level 3 dischargers that pose a high risk to water quality are
subject to technology-based NALs listed above, in addition to technology-based Numeric
Effluent Limits (NELs) for pH and turbidity. Exceedances of the NELs are a violation of the
Permit. The General Permit requires dischargers with NEL exceedances to implement
additional monitoring, BMPs, and revise their SWPPPs accordingly. Dischargers are required
to notify the State and Regional Water Boards of the violation through the State Water Boards
SMARTS website, and provide an NEL Violation Report sharing additional information
concerning the NEL exceedance.
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Risk Level 3 dischargers are subject to the following NELs:
pH NEL of 6.0 – 9.0
Turbidity NEL of 500 NTU
The General Permit establishes a 5 year, 24 hour (expressed in inches of rainfall) Compliance
Storm Event exemption from the technology-based NELs for Risk Level 3 dischargers.
Discharges of storm water from Risk Level 3 sites shall comply with applicable NELs (above)
unless the storm event causing the discharges is determined after the fact to be equal to or
larger than the “Compliance Storm Event” (expressed in inches of rainfall). The Compliance
Storm Event for Risk Level 3 discharges is the 5 year, 24 hour storm (expressed in tenths of an
inch of rainfall), as determined by using the maps listed below. Compliance storm event
verification shall be done by reporting on-site rain gauge readings as well as nearby
governmental rain gauge readings.
http://www.wrcc.dri.edu/pcpnfreq/nca5y24.gif
http://www.wrcc.dri.edu/pcpnfreq/sca5y24.gif
In addition, dischargers choosing to implement an Active Treatment System (ATS) on-site are
subject to additional requirements and NELs set forth in the permit:
Turbidity NEL of less than 10 NTU for daily flow-weighted average of all samples
Turbidity NEL of 20 NTU for any single sample
Residual Chemical shall be < 10% of Maximum Allowable Threshold Concentration2
(MATC) for the most sensitive species of the chemical used.
pH NEL of 6.0 – 9.0
Toxicity – no allowable adverse effects (batch systems only)
The General Permit also contains “compliance storm event” exceptions from the technology-
based NELs for ATS discharges. The rationale is that technology-based requirements are
developed assuming a certain design storm. In the case of ATS the industry-standard design
storm is 10-year, 24-hour (as stated in Attachment F of the General Permit), so the
compliance storm event has been established as the 10-year 24-hour event as well to provide
consistency.
7.4. SAFETY
The QSP may designate qualified personnel to conduct inspections and perform water quality
sampling if needed. The QSP and any personnel that may conduct sampling must receive
2 The Maximum Allowable Threshold Concentration (MATC) is the allowable concentration of residual, or
dissolved, coagulant/flocculant in effluent. The MATC shall be coagulant/flocculant-specific, and based on toxicity
testing conducted by an independent, third-party laboratory. The MATC is equal to the geometric mean of the
NOEC (No Observed Effect Concentration) and LOEC (Lowest Observed Effect Concentration) Acute and Chronic
toxicity results for most sensitive species determined for the specific coagulant. The most sensitive species test shall
be used to determine the MATC.
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training prior to conducting any sampling activities. This includes reviewing the CSMP as well
as any health and safety plans for the construction site. The sampling personnel should also
obtain the necessary background information required for an overall understanding of the
project, including schedules, BMPs and runoff discharge locations.
The contractor’s sampling crewmembers should also be made aware of potential hazards
associated with sampling. These hazards can include slippery conditions, cold or hot
temperatures, open water that may be fast moving and or deep, construction site traffic, and
contaminated water. Crewmembers need to become familiar with the methods to be
employed to cope with those hazards. These include, but are not limited to:
At no time during storm conditions or when significant flows are present should
sampling personnel enter a river or creek.
Two-person sampling crews should be available for all fieldwork to be conducted
under adverse weather conditions, or whenever there are risks to personal safety.
Personnel must be trained regarding appropriate on-site construction traffic control
measures.
Do not touch the inside of the sample bottles.
Proper safety equipment shall be kept on-site and available for use, including
protective gloves, hardhats, orange safety vests, rain gear, first aid kits and other
equipment per the Contractor’s Health and Safety Plan.
7.5. VISUAL MONITORING (INSPECTIONS)
All sites (Risk Levels 1, 2, and 3) are required to conduct visual monitoring (inspections). Visual
monitoring includes inspections of BMPs, inspections before and after qualifying rain events,
and inspection for non-storm water discharges. Visual inspections are required for the
duration of the project with the goal of confirming that appropriately selected BMPs have been
implemented, are being maintained, and are effective in preventing potential pollutants from
coming in contact with storm water.
7.5.1. BMP Inspections
The General Permit requires that BMPs be inspected weekly and once each 24-hour period
during extended storm events. The purpose of these inspections is to identify BMPs that:
Need maintenance to operate effectively;
Failed; or
Could fail to operate as intended.
If deficiencies are identified during BMP inspections, repairs or design changes to BMPs must
be initiated within 72 hours of identification and need to be completed as soon as possible.
All BMP inspections must be documented on an inspection checklist (Appendix P). The
checklist should be made site specific based on the BMPs and outfalls for each construction
project, and copies of the completed inspection forms, any corrective actions and any
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photographs taken shall be included in this SWPPP. Inspection results shall also be included
in the Annual Reports (see Section 7.9.3 and Appendix F).
7.5.2. Qualifying Rain Event Inspections
The General Permit defines a qualifying rain event as one that produces ½-inch or more of
precipitation with a 48 hour or greater period between rain events.
The General Permit requires that the construction site be inspected within two days prior to a
predicted qualifying rain event, once every 24-hours during extended storm events, and within
two days after a qualifying rain event. These inspections are only required during normal
business hours of the construction site. The General Permit requires that only weather forecasts
from the National Oceanographic and Atmospheric Administration (NOAA) are used. Pre-
project inspections should be initiated after consulting NOAA for a qualifying rain event with
50% or greater probability of precipitation (PoP). These forecasts can be obtained at
http://www.srh.noaa.gov/.
Records must be kept of all qualifying rain event inspections, included in Appendix P. Records
need to be maintained on site and document:
Personnel performing the observations;
Observation dates (time and date);
Printed copy of the NOAA forecast;
Weather conditions (including the rain gauge reading for the qualifying rain event
from the nearest government rain gauge);
Locations observed; and
Corrective actions taken in response to observations.
Copies of the Visual Inspection Log Sheets that may be used for pre- and post-rain event
inspections are included in Appendix P.
Pre-Rain Event Inspections
The purpose of the pre-rain event inspection is to make sure the site and the BMPs are ready
for the predicted rain. The pre-rain event inspection needs to cover:
All storm water drainage areas to identify any spills, leaks, or uncontrolled pollutant
sources;
All BMPs to identify whether they have been properly implemented per the SWPPP
and/or REAP;
Storm water storage and containment areas to detect leaks and ensure maintenance
of adequate freeboard; and
The presence or absence of floating and suspended materials, a sheen on the surface,
discolorations, turbidity, odors, and source(s) of any observed pollutants within stored
storm water.
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Extended Storm Event / Daily Storm BMP Inspections
The purpose of the inspections conducted once every 24-hour period during extended storm
events is to identify and record BMPs that need maintenance to operate effectively, that have
failed, or that could fail to operate as intended. These inspections need to cover:
All storm water drainage areas to identify any spills, leaks, or uncontrolled pollutant
sources;
The presence or absence of floating and suspended materials, a sheen on the surface,
discolorations, turbidity, odors, and source(s) of any observed pollutants within stored
storm water.
All BMPs to identify whether they have been properly implemented per the SWPPP
and/or REAP;
After assessing BMPs it should be noted on the inspection form whether the BMPs
need maintenance.
Post-Rain Event Inspections
The purpose of the post-rain event inspection is to observe the discharge locations and the
discharge of any stored or contained rainwater; determine if BMPs functioned as designed;
and identify if any additional BMPs are required. The post-rain event inspection needs to
cover:
All storm water discharge locations;
The discharge of stored or contained storm water that is derived from and discharged
subsequent to a qualifying rain event; and
All BMPs to determine if they were adequately designed, implemented, and effective.
After assessing BMPs it should be noted on the inspection form whether the BMPs
need maintenance.
Rain Event Action Plans (REAPs)
Requirements for Rain Event Action Plans (REAPs) are outlined in Section 4.2 of this SWPPP.
7.5.3. Non-Storm Water Discharge Inspections
Construction sites, regardless of risk level, must be inspected quarterly for the presence of
non-storm water discharges. Inspections are to be performed at the end of each of the
following periods:
January-March
April-June
July-September
October-December
Non-storm water discharge inspections are only required during normal business hours of the
construction site. The purpose of these inspections is to detect unauthorized non-storm water
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discharges and observe authorized non-storm water discharges. Quarterly inspections need to
include each drainage area of the project and document:
Presence or indications of unauthorized and authorized non-storm water discharges
and their sources;
Pollutant characteristics of the non-storm water discharge (floating and suspended
material, sheen, discoloration, turbidity, odor, etc;
Personnel performing the observations;
Dates and approximate time each drainage area and non-storm water discharge was
observed; and
Response taken to observations.
Results of quarterly inspections and any corrective actions taken are to be documented in the
SWPPP and included as part of the Annual Reports (see Section 7.9.3 and Appendix F).
If the site is Risk Level 2 or 3 and there are non-storm water discharges, then samples must be
collected and analyzed per Section 7.6. Potential non-storm water discharges are described
in Section 2.6.
Records must be kept of all inspections and must be maintained on site. Copies of the Visual
Inspection Log Sheets that may be used for non-storm water discharge inspections are
included in Appendix P. Results are also to be included as part of the Annual Report (see
Section 7.9.3 and Appendix F).
7.6. WATER QUALITY SAMPLING AND ANALYSIS
The purpose of sampling is to determine whether BMPs implemented on a construction site
are effective in controlling potential construction site pollutants, which come in contact with
storm water or non-storm water, and to demonstrate compliance with the applicable NALs or
NELs. Water quality sampling and analysis is required for all Risk Level 2 and 3 projects.
Typically, Risk Level 1 projects are not required to conduct water quality sampling and analysis
unless there is a risk of non-visible pollutant discharge.
7.6.1. Potential Pollutant Sources
Sediment & Turbidity
Conditions or areas at a construction site that may cause sediment, silt, and/or turbidity in site
runoff include:
Exposed soil areas with inadequate erosion control measures;
Areas of active grading;
Poorly stabilized slopes;
Lack of perimeter sediment controls;
Areas of concentrated flow on unprotected soils;
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Poorly maintained erosion and sediment control measures;
Tracking sediment onto roads and paved surfaces;
Unprotected soil stockpiles; and
Failure of an erosion or sediment control measure.
High pH
Conditions or areas at a construction site that may cause high pH in site discharges include:
Concrete pours and curing;
Concrete waste management areas;
Soil amendments (e.g. fly ash and lime); and
Mortar and stucco mixing, application, and waste management areas.
Non-Visible Pollutants
Non-visible pollutants are not visually detectable in storm water runoff from a construction
site, but may cause or contribute to an exceedance of water quality objectives if discharged. It
is important to note that covered construction materials or those that are in their final
constructed form, do not need to be monitored. Materials that are stored exposed to
precipitation and may generate runoff need to be considered for non-visible pollutant
monitoring. Such pollutants may include, but are not limited to: asphalt paving materials and
solvents; concrete and concrete slurry; and fertilizers and mulch. Non-visible pollutants in site
discharges may result from materials that:
Are being used in construction activities;
Are stored on the construction site;
Were spilled during construction operations and not cleaned up;
Were stored (or used) in a manner that presented the potential for a release of the
material during past land use activities;
Were spilled during previous land use activities and not cleaned up; or
Were applied to soil as part of past land use activities.
7.6.2. Monitoring Constituents by Risk Level
Risk Level 1
Risk Level 1 projects are only required to collect water quality samples if there is a BMP
breach, malfunction, leakage, or spill. Water quality samples should be taken for non-visible
pollutants that may have been discharged from the site as identified in the site pollutant source
assessment (see Section 2.5 of this SWPPP).
Particle size analysis may be needed if a Risk Level 1 project is using a sediment basin or if
needed to justify a site specific risk level calculation using the Revised Universal Soil Loss
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Equation (RUSLE). The particle size analysis provides the information needed to determine the
K-factor.
7.6.3. Sampling Locations
A Sampling Locations Exhibit has been included in Appendix B, denoting anticipated sampling
locations for the project site, as well as an upstream location to be used for background
sample or where uncontaminated samples are needed. Sampling locations for storm water
are located at the discharge points that ensure adequate representation of the flow and
characteristics of the site’s discharges. Additional locations have also been identified to
characterize for non-storm water runoff discharges and/or spills, where necessary. These
sample locations are dependent upon the suspected source location, and may vary depending
on the location of the spill and/or BMP failure. Sampling locations shall be verified in the field
and be representative of current site conditions, disturbed areas and construction phasing. Any
updates to the sampling locations (e.g., as a result of construction phasing) shall be noted on
the Sampling Locations Plan and included within the SWPPP (Appendix B).
7.6.4. Sample Collection and Handling
It is important to use the correct methods to collect and handle samples to ensure the samples
are valid. While the handling requirements apply primarily to grab samples collected for
laboratory analysis, field measurements can be affected by sample collection procedures.
The General Permit requires dischargers to designate and train personnel to collect, maintain,
and ship water quality samples in accordance with the Surface Water Ambient Monitoring
Program (SWAMP) 2008 Quality Assurance Program Plan (QAPrP), which is available at
http://www.swrcb.ca.gov/water_issues/programs/swamp/tools.shtml#qa. Adherence to
SWAMP sampling guidance and proper development of a sampling plan provides for
consistent, reproducible, and accurate results.
Sampling methods, handling procedures, and locations should be identified in advance of the
sampling event in order to provide sufficient time to gather the supplies and equipment
necessary to sample and plan for safe access by the sampling crew(s). This includes preparing
sampling blanks or duplicates as required under SWAMP protocols.
Field crews should be trained in the appropriate site-specific methods specified in the
sampling plan. “Clean sampling” based on the US Environmental Protection Agency (EPA)
Method 1669 should be used when sufficiently low detection concentrations are expected for
at least trace metals and mercury. These “clean techniques” include the following protocols:
Samples (for laboratory analysis) are collected only in analytical laboratory-provided
sample containers;
Clean, powder-free nitrile gloves should be worn for collection of samples;
Gloves are changed whenever something not known to be clean has been touched;
Decontaminate all equipment (e.g. bucket, tubing) except laboratory provided sample
containers, prior to sample collection using a trisodium phosphate (TSP)-soapy water
wash, distilled water rinse, and final rinse with distilled water. (Dispose of wash and
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rinse water appropriately, i.e., do not discharge to storm drain or receiving water);
and
To reduce potential contamination, sample collection personnel must adhere to the
following rules while collecting samples:
o No smoking;
o Never sample near a running vehicle;
o Do not park vehicles in the immediate sample collection area (even non-
running vehicles);
o Do not eat or drink during sample collection; and
o Do not breathe, sneeze, or cough in the direction of an open sample
container.
Laboratory Sample Collection
Water quality samples should be collected in appropriate sample containers and be of
adequate volume to conduct the required measurements or laboratory analyses. The most
important aspect of grab sampling is to make sure that the sample best represents the entire
runoff stream. Typically, samples are collected by dipping the collection container in the runoff
flow paths and streams as noted below. Note, however that depending upon the specific test
that is required, some bottles may contain preservatives. These bottles should never be dipped
into the stream, but filled indirectly from the collection container.
For small streams and flow paths, simply dip the bottle facing upstream until full.
For larger stream that can be safely accessed, collect a sample in the middle of the
flow stream by directly dipping the mouth of the bottle. Once again making sure that
the opening of the bottle is facing upstream as to avoid any contamination by the
sampler.
For larger streams that cannot be safely waded, pole-samplers may be needed to
safely access the representative flow.
Avoid collecting samples from ponded, sluggish or stagnant water.
Avoid collecting samples directly downstream from a bridge as the samples can be
affected by the bridge structure or runoff from the road surface.
All sampling and sample preservation must be in accordance with the current edition of
Standard Methods for the Examination of Water and Wastewater (American Public Health
Association).
All samples must be maintained between 0-6 degrees Celsius during delivery to the
laboratory.
Samples must be kept on ice, or refrigerated, from sample collection through delivery to the
laboratory. Shipped samples should be placed inside coolers with ice. Make sure the sample
bottles are well packaged to prevent breakage and secure cooler lids with packaging tape.
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Ship samples that will be laboratory analyzed to the analytical laboratory right away. Many
analytical methods have short hold-times before which the analysis must be started. Hold
times are measured from the time the sample is collected to the time the sample is analyzed.
The General Permit requires that samples be received by the analytical laboratory within 48
hours of the physical sampling (unless otherwise required by the analytical laboratory).
Collect proper information regarding time and sampling conditions, appropriately label the
bottles, and fill out the required chain of custody forms and field logs.
All laboratory analyses must be conducted according to analytical procedures specified in 40
Code of Federal Regulations (CFR) Part 136, unless other analytical procedures have been
specified in the General Permit or by the RWQCB. With the exception of field analyses
conducted by the discharger for turbidity and pH, all analyses must be sent to and conducted
by a state-certified analytical laboratory. Currently, the SSC method is not state certified and a
limited number of laboratories have the capability of doing this analysis.
Field Meters
Dischargers can perform pH analysis on site with a calibrated pH meter, or pH test kit.
Dischargers can perform turbidity analysis using a calibrated turbidity meter (turbidimeter),
either on site or at an accredited analytical laboratory. Many manufacturers offer single
parameter meters or multiple parameter meters with various optional probes. Dischargers will
need to determine the best type of meter for their individual situation. Any meter selected for
field monitoring should have the ability to be calibrated, be accompanied by detailed
operation instructions, and should be ruggedly designed for field use and long-term storage
(you are unlikely to need it during the dry season).
Most sites will require the use of some sort of field meter to measure turbidity and pH. Some
field meters can be placed directly in the flow of water and gather instantaneous data. Meters
with probes that can be directly placed into the flow are ideal, however low flow conditions
may not allow for this type of measurement. In this case, grab samples can be collected and
placed within the field meter’s recording container. Appendix R, derived from the California
Stormwater Quality Association’s (CASQA’s) Stormwater Quality Handbook for Construction
(2009), provides step-by-step instructions using an example field meter.
All monitoring instruments and equipment (including a discharger’s own field instruments for
measuring pH and turbidity) should be calibrated and maintained in accordance with
manufacturers’ specifications to ensure accurate measurements. Many manufacturers provide
step-by-step instructions for the use and calibration of their meters and these instructions
should be followed.
7.6.5. Analytical Methods and Reporting Limits
The analytical method/protocol, minimum detection limits, and reporting units for the water
quality constituents specifically identified in the General Permit are presented in Table 7.2.
Table 7.2 Analytical Methods and Protocols for General Permit Constituents
Parameter Test
Method/Protocol
Minimum
Detection Limit
Minimum Sample
Volume Container Type
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pH Field meter or pH
test kit 0.2 pH Units Not Applicable Plastic
Turbidity Field meter or
EPA 180.1 1 NTU 500 mL Plastic
SSC ASTM Method D
3977-97 5 mg/L 200 mL Contact
Laboratory
Analyses for pH can performed on-site with a calibrated pH meter, or pH test kit. Turbidity
analyses can be performed using a calibrated turbidity meter (turbidimeter), either on-site or at
an accredited laboratory. Many manufacturers, such as Hach, Hydrolab, Global Water, Fisher
Scientific, and LaMott, offer single parameter meters or multiple parameter meters with various
optional probes. The QSP will need to determine the best type of meter for their individual
situation. Any meter selected for field monitoring should have the ability to be calibrated, be
accompanied by detailed operation instructions, and should be ruggedly designed for field
use and long-term storage (limited use during the dry season). Refer to Appendix R for further
instructions using field meters on-site.
Analytical laboratories should be contacted and a contract should be worked out before the
wet season to minimize potential disruptions during the critical sampling period. A laboratory
should be chosen foremost by their accreditation, ability to perform the required samples in
the desired turn-around-time, and then by their proximity for ease of sample delivery. Although
with overnight mail delivery, proximity is less important, it may still be an important factor to
avoid bottle breakage during shipment. State-certified analytical laboratories can be found by
using the Environmental Laboratory Accreditation Program’s (ELAP) website at:
http://www.cdph.ca.gov/certlic/labs/Pages/ELAP.aspx.
Non-visible pollutants may include a wide range of analytical methods. A list of potential non-
visible pollutants based on common construction activities is shown in Table 7.3 and in
Appendix S. Consult with the analytical laboratory to identify specific analytical methods,
sample volume and containers needed for the expected non-visible pollutants.
Table 7.3 Potential Non-Visible Pollutants based on Common Construction Activities
Activity Potential Pollutant Source Laboratory Analysis
Water line flushing Chlorinated water Residual chlorine
Portable toilets Bacteria, disinfectants Total/fecal coliform
Concrete & Masonry Acid wash
Curing compounds
Concrete rinse water
pH
pH, alkalinity, volatile organic compounds
(VOCs)
pH
Painting Resins
Thinners
Paint Strippers
Solvents
Adhesives
Sealants
Semi-volatile organic compounds (SVOCs)
Phenols, VOCs
VOCs
Phenols, VOCs
Phenols, SVOCs
SVOCs
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Activity Potential Pollutant Source Laboratory Analysis
Cleaning Detergents
Bleaches
Solvents
Methylene Blue Activated Substances
(MBAS), phosphates
Residual chlorine
VOCs
Landscaping Pesticides/Herbicides
Fertilizers
Lime and gypsum
Aluminum sulfate, sulfur
Check with analytical laboratory
NO3/NH3/P
Acidity/alkalinity
Total dissolved solids (TDS), alkalinity
Treated wood Copper, arsenic, selenium Metals
Soil amendments &
dust control
Lime, gypsum
Plant gums
Magnesium chloride
Calcium chloride
Natural brines
Lignosulfonates
pH
Biochemical oxygen demand (BOD)
Alkalinity, TDS
Alkalinity, TDS
Alkalinity, TDS
Alkalinity, TDS
The analysis performed is dependent on the type of potential discharge. Personnel collecting
the sample should use the chart above as a general guideline to determine which analyses
should be performed.
7.6.6. Exemptions
Risk Level 2 and 3 dischargers are not required to physically collect samples or conduct visual
observations (inspections) under the following conditions:
During dangerous weather conditions such as flooding and electrical storms
Outside of scheduled site business hours
If no required samples or inspections are collected due to these exceptions, dischargers shall
include an explanation in the SWPPP and in the Annual Report documenting why the sampling
or visual observation/inspections were not conducted.
7.6.7. Bioassessment
Not required for Risk Level 1 or 2 dischargers.
7.7. WATERSHED MONITORING OPTION
Dischargers who are part of a qualified regional watershed-based monitoring program may
be eligible for relief from the sampling and analysis requirements. The RWQCB may approve
proposals to substitute an acceptable watershed-based monitoring program by determining if
the watershed-based monitoring program will provide substantially similar monitoring
information in evaluating discharger compliance with the requirements of the General Permit.
The Poinsettia Community Park will not be utilizing regional watershed-based monitoring. All
monitoring will be conducted on-site in accordance with the General Permit.
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7.8. QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC)
Quality assurance/quality control (QA/QC) procedures shall be implemented as part of the
CSMP to ensure that analytical data can be used with confidence. QA/QC procedures to be
used include use of field logs, clean sampling techniques, sample chains-of-custodies, and
data verification.
7.8.1. Field Logs
The purpose of field logs is to record sampling information and field observations during
monitoring that may explain any uncharacteristic analytical results. Sampling information to be
included in the field log include the date and time of water quality sample collection, sampling
personnel, sample container identification numbers, and types of samples that were collected.
Field observations should be noted in the field log for any abnormalities at the sampling
location (color, odor, BMPs, etc.). Field measurements for pH and turbidity should also be
recorded in the field log. Examples of field logs to record visual inspections and sample
collection and field measurements are provided in Appendix T. Completed field logs shall
also be kept in Appendix T.
7.8.2. Clean Sampling Techniques
Clean sampling techniques involve the use of certified clean containers for sample collection
and clean powder-free nitrile gloves during sample collection and handling. As discussed
previously, adoption of a clean sampling approach will minimize the chance of field
contamination and questionable data results. Refer to Section 7.6.4 for further details on
clean sampling techniques.
7.8.3. Sample Chain-of-Custody
The sample chain-of-custody is an important documentation step that tracks samples from
collection through analysis to ensure the validity of the sample. Sample chain-of-custody
procedures include the following:
Proper labeling of samples;
Use of chain of custody (COC) forms for all samples; and
Prompt sample delivery to the analytical laboratory.
Analytical laboratories usually provide chain-of-custody forms to be filled out for sample
containers. Copies of the chain-of-custody forms shall be included in Appendix T.
7.8.4. Data Verification
Data verification of analytical results received from the laboratory shall be performed to
ensure that data is complete, accurate and the appropriate QA/QC requirements were met.
Data should be verified as soon as the data reports are received. Data verification to be
performed includes the following:
Laboratory Data Verification
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Checking the chain-of-custody and laboratory reports to make sure all requested
analysis were performed and all samples are accounted for in the reports.
Checking laboratory reports to make sure hold times were met and that the reporting
levels meet or are lower than the reporting levels agreed to in the contract.
Check data for outlier values and follow up with the laboratory. Occasionally
typographical errors, unit reporting errors, or incomplete results are reported and
should be easily detected. These errors need to be identified, clarified, and corrected
quickly by the laboratory. Attention should be paid to data that is an order of
magnitude or more different than similar locations, or is inconsistent with previous
data from the same location.
Evaluate the laboratory-reported QA/QC data to check for contamination (look at
method, field, and equipment blanks), precision (laboratory matrix spike duplicates),
and accuracy (matrix spikes and laboratory control samples). When QA/QC checks
are outside acceptable ranges, the laboratory must flag the data, and usually provides
an explanation of the potential impact to the sample results.
Check the data set for outlier values and, accordingly, confirm results and re-analyze
samples where appropriate. Sample re-analysis should only be undertaken when it
appears that some part of the QA/QC resulted in a value out of the expected range.
Initial data, even if outside the expected range may not be discounted unless the
analytical laboratory identifies the required QA/QC criteria were not met. If this
occurs, the project should obtain a written statement from the analytical laboratory
regarding the validity of the sample result.
Field Data Verification
Check field data as soon as possible to identify potential errors. Verify reported data
and observations to ensure that it is complete and accurate and as soon as the field
logs are received.
Check field logs to make sure all required measurements were completed and
appropriately documented. Crews may occasionally miss-record a value. Reported
values that appear out of the typical range or inconsistent, should be followed up on
immediately to identify potential reporting or equipment problems.
Equipment calibration notations should be verified for outlier data, and if appropriate
equipment calibrations should be checked after sampling. Observations noted on the
field logs can also help to identify potential interferences. Notations should be made
of any errors and actions taken to correct the equipment or recording errors.
When using a field meter it is important to record the value and make note of any
possible meter failures or interferences that could have led to an exceedance. Some
possible instrument problems may include the need to recalibrate; the need to replace
the battery; problems with the sample container (such as scratches on glass or plastic
optical sample cells or particles on the outside of the optical sample cells); or fouled
probes.
7.9. REPORTING REQUIREMENTS AND RECORDS RETENTION
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The majority of reporting will typically occur in the Annual Report (see Section 7.9.3 and
Appendix F). However, Risk Level 3 dischargers must electronically submit all storm event
sampling results (pH and turbidity) to the SWRCB’s SMARTS no later than five days after the
conclusion of the storm event. Field data related to ATS monitoring must be filed every 30
days. Data may be submitted by “Ad Hoc Monitoring Reports” through the SMARTS Annual
Reporting interface. Instructions for submitting Ad Hoc Monitoring Reports are included in
Appendix U.
Additional reporting is required if NALs or NELs are exceeded. The requirements for NAL
Exceedance Reports and NEL Violation Reports as well as records retention are discussed in
the following sections.
7.9.1. Numeric Action Level Exceedance Report
In the event that the storm event daily average of the samples exceeds an applicable NAL (see
Section 7.3), Risk Level 2 and 3 dischargers must electronically submit all storm event
sampling results to the SWRCB’s SMARTS no later than 10 days after the conclusion of the
storm event. (Note, however that Risk Level 3 dischargers must submit all field data regardless
of exceedance status within five days of the storm event conclusion). In addition, the RWQCBs
may request the submittal of an NAL Exceedance Report. The discharger must certify each
NAL Exceedance Report in accordance with the General Permit’s Special Provisions for
Construction Activity.
An NAL Exceedance Report must contain the following information:
Analytical method(s), method reporting unit(s), and MDL(s) of each analytical
parameter;
Date, place, time of sampling, visual observation (inspections), and/or measurements,
including precipitation; and
Description of the current BMPs associated with the sample that exceeded the NAL
and the proposed corrective actions taken
NAL Exceedance Reports are not required for Risk Level 1 dischargers.
7.9.2. Numeric Effluent Limitation (NEL) Violation Report
In the event that the daily average of the samples exceed an applicable NEL (see Section 7.3),
Risk Level 3 dischargers must electronically submit a NEL Violation Report to the SWRCB’s
SMARTS within 24 hours of identifying the exceedance. ATS dischargers must submit an NEL
Violation Report to the SWRCB’s SMARTS within 24 hours after the NEL exceedance has been
identified. The discharger must certify each NEL Violation Report in accordance with the
General Permit’s Special Provisions for Construction Activity (General Permit Section IV).
Similar to the NAL Exceedance Report, a NEL Violation Report contains the following
information:
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Analytical method(s), method reporting unit(s), and method detection limits (MDLs) of
each analytical parameter;
Date, place, time of sampling, visual observation (inspections), and/or measurements,
including precipitation; and
Description of the current BMPs associated with the effluent sample that exceeded the
NEL and the proposed corrective actions taken.
In the event that an applicable NEL was exceeded during a storm event equal to or larger than
the Compliance Storm Event (5-year, 24-hour event), Risk Level 3 and ATS dischargers must
report the on-site rain gauge reading and nearby governmental rain gauge readings for
verification. Projects affected by run-on from a natural disaster (such as a forest fire) are not
subject to NELs. Exemption justifications must be entered in to SMARTS.
Risk Level 3 projects and sites using ATS are required to subsequently sample receiving waters
for pH, turbidity, and SSC for the duration of coverage under the General Permit if an NEL
contained in the General Permit is violated. Refer to Section 7.6.3 for discussion of Receiving
Water Sampling criteria.
NEL Violation Reports are not required for Risk Level 1 dischargers.
7.9.3. Annual Report
As discussed in Section 1.8, all dischargers are required to prepare and electronically submit
an Annual Report no later than September 1 each year. The Annual Reports must be certified
in accordance with the Special Provisions in the General Permit. The Annual Report must
include the following storm water monitoring information:
A summary and evaluation of all sampling and analysis results, including original
laboratory reports;
The analytical method(s), method reporting unit(s), and MDL(s) of each analytical
parameter (analytical results that are less than the MDL must be reported as “less than
the MDL” or “<MDL”);
A summary of all corrective actions taken during the compliance year;
Identification of any compliance activities or corrective actions that were not
implemented;
A summary of all violations of the General Permit;
The individual(s) who performed facility inspections, sampling, visual observation
(inspections), and/or measurements;
The date, place, time of facility inspections, sampling, visual observation (inspections),
and/or measurements, including precipitation (rain gauge); and
The visual observations and sample collection exception records and reports.
In addition, the Annual Report shall include the following training information:
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Documentation of all training for individuals responsible for all activities
associated with compliance with the General Permit;
Documentation of all training for individuals responsible for BMP
installation, inspection, maintenance and repair; and
Documentation of all training for individuals responsible for overseeing, revising, and
amending the SWPPP.
7.9.4. Records Retention
The Owner shall retain records of all site inspections, sample collections, analytical data,
discharge reports and annual reports for a period of at least three (3) years from the date
generated. Records to be retained include:
The date, place, time of facility inspections, sampling, visual observation (inspections),
and/or measurements, including precipitation.
The individual(s) who performed the facility inspections, sampling, visual observation
(inspections), and or measurements.
The date and approximate time of analyses.
The individual(s) who performed the analyses.
A summary of all analytical results from the last three years, the method detection
limits (MDLs) and reporting units, and the analytical techniques or methods used.
Rain gauge readings from site inspections (either from on-site rain gauge or nearest
government rain gauge)
Quality assurance/quality control (QA/QC) records and results.
Non-storm water discharge inspections and visual observation (inspections) and storm
water discharge visual observation records.
Visual observation and sample collection exception records.
NAL Exceedance Reports and NEL Violation Reports.
The records of any corrective actions and follow-up activities that resulted from
analytical results, visual observation (inspections), or inspections.
Results of field measurements and laboratory analyses must be kept in the SWPPP. It is also
recommended that training logs, chain-of-custody forms, and other documentation related to
sampling and analysis be kept with the project’s SWPPP (see Appendices for appropriate
locations).
7.10. ACTIVE TREATMENT SYSTEMS (ATS) REQUIREMENTS
Projects choosing to use ATS are subject to additional monitoring requirements specific to
operation of the ATS. An ATS is defined in the General Permit as any system that utilizes
chemical coagulation, chemical flocculation, or electrocoagulation to reduce turbidity caused
by fine suspended sediment. Typically, an ATS is considered for use as a BMP at sites with
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sediment sensitive receiving waters, high concentrations of fine clayey soils, limited space for
sediment control structures or long and steep slopes.
The General Permit specifies a turbidity NEL for ATS discharge that is different than the NEL
for Risk Level 3 sites, and sets limits for chemical residual and toxicity (Table 7.4).
Table 7.4 Summary of ATS Discharge Limitations
Parameter Limitation ATS Type
Turbidity 10 NTU daily flow-weighted average, and
20 NTU single sample maximum
All
Chemical Residual 10% or less of Maximum Allowable Threshold
Concentration (MATC)
Flow-through systems
Toxicity No allowable toxic effects Batch systems
7.10.1. Types of ATS
In general, there are two types of ATS design, as batch treatment systems using either ponds
or portable trailer-mounted tanks, or as flow-through systems using any number of proprietary
system designs. Batch treatment systems consist of a storm water collection system (i.e.,
temporary diversion or the permanent site drainage system); a sediment basin, trap or tanks
for holding untreated runoff; pumps; a chemical feed system; treatment cells; and
interconnected piping. In general, untreated runoff is pumped from the holding basins/tanks
through a chemical injection system into treatment cells. Multiple treatment cells allow for
clarification of treated water while the other cells are being filled or emptied. Treatment cells
may be basins, traps or tanks. The General Permit requires that batch treatment systems have
a filtration step to remove residual floc prior to discharge.
Flow-through systems, at a minimum, consist of a storm water collection system (either
temporary diversion or the permanent site drainage system), an untreated storm water storage
pond or holding tank and a chemically enhanced filtration system. Storm water from the site
is diverted to the storm water pond or holding area and is stored until treatment occurs. It is
important that the holding pond be large enough to provide adequate storage. Storm water is
then pumped from the storage pond to the chemically enhanced filtration system where
polymer is added and pH adjustments may be made. The system continually monitors the
storm water for turbidity and pH, and water is recycled to the untreated pond or holding tank
where it can be treated again if levels are outside of the acceptable range for discharge.
7.10.2. ATS Plan
Prior to using ATS, an ATS Plan must be submitted to the SWRCB via SMARTS, which contains
the following components:
ATS Operation and Maintenance (O&M) Manual for All Equipment;
ATS Monitoring, Sampling & Reporting Plan (MSRP), including QA/QC;
ATS Health and Safety Plan; and
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ATS Spill Prevention Plan.
In addition, prior to implementing ATS on-site, jar tests are required to be conducted for any
chemical/coagulant to be utilized. Jar tests must be conducted according to ASTM D-2035-
08. Refer to the ASTM standard for specific requirements. Commercial ATS providers will
generally perform jar testing on site-specific soils prior to ATS set-up to determine the
appropriate chemical and dosage to optimize settling.
A QA/QC plan should be prepared as part of the MSRP that is consistent with the QA/QC
elements that apply to general field monitoring identified in Section 7.8 of this document.
Additional QA/QC requirements specific to ATS include monthly laboratory duplicates to
verify chemical residual levels obtained from field measurements, calibration schedules of
automated instrumentation (see Section 7.8), and method detection limits for chemicals being
used.
7.10.3. Required Training for ATS Operation and Monitoring
ATS Operators must have specific training to using an ATS and liquid coagulants for storm
water discharges. The training is required to consist of a formal class with a certificate and
requirements for testing and certificate renewal and include a minimum of eight (8) hours
classroom and 32 hours field training. Within the classroom training the following monitoring
components are required:
ATS Control Systems;
Coagulant Selection – Jar testing, dose determination, etc.;
Aquatic Safety/Toxicity of Coagulants – proper handling and safety;
Monitoring, Sampling, and Analysis;
Reporting and Recordkeeping; and
Emergency Response.
ATS Training shall be documented in the SWPPP and in the ATS Plan.
7.10.4. Visual Monitoring (Inspection)
A designated responsible person is required to be on site daily at all times during treatment
operations. Daily on site visual monitoring of the system for proper performance is required to
be conducted and recorded in a project field data log and included in the SWPPP/ATS Plan.
Sample logs are included in Appendix T.
7.10.5. Operational and Compliance Monitoring
All ATS systems (both batch and flow-through) must have instrumentation that automatically
measures and records effluent water quality and flow data. This instrumentation typically will
include:
Mounted submersible pH and turbidity probes;
Data loggers (field-read or internet-based); and
S TORM WATER POLLUTION PREVENTION PLAN (SWPPP)
POINSETTIA COMMUNITY PARK DECEMBER 2015
FUSCOE ENGINEERING, INC. 59
A system control panel that provides automatic shut off or recirculation in case of
water quality or effluent limitation violation, power-loss, or other catastrophic event.
The system control panel must also control coagulant dosing to prevent accidental
overdosing. The majority of ATS (including both flow-through and batch systems) will likely be
designed, supplied, or monitored by established commercial ATS providers, and these systems
must be been designed and instrumented to meet the General Permit criteria (see Appendix
W).
The following parameters must be monitored continuously and recorded in the field data log
in no less than 15 minute intervals:
Flow rate and volume of treated discharge;
Influent and effluent pH; and
Influent and effluent turbidity.
In addition, the following parameters must also be monitored and recorded:
Cumulative flow volume – daily;
Type and amount of pH adjustment chemical – as utilized;
Dose rate of treatment chemical – 15 minutes after startup and every 8 hours of
operation;
Residual chemical/additive levels – as proposed in ATS Plan for flow-through systems;
and
Effluent toxicity – for each proposed batch discharge.
All instrumentation used for continuous monitoring must be calibrated on a regular basis with
calibration requirements stated in the QA/QC section of the ATS Plan. Refer to Appendix R
for additional requirements on instrument calibration.
Refer to Appendix W for additional details on effluent testing for residual chemical and toxicity.
7.10.6. Reporting and Records Retention
The SWRCB requires all ATS-related field monitoring data, including chemical residual and
effluent toxicity testing to be submitted via SMARTS every 30 days at a minimum. Any
monitoring data that violate water quality standards must be reported to the RWQCB. An NEL
Violation Report must be electronically filed in SMARTS within 24 hours of identifying an
exceedance of an NEL. See Section 7.9.2 for a discussion of NEL Violation Reports.
All ATS records must also be kept for a minimum of three years after the conclusion of the
project (see discussion in Section 7.9.4).
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FUSCOE ENGINEERING, INC. 60
8. APPENDICES
Appendix A Construction General Permit
Appendix B Exhibits
B1 Vicinity Map
B2 SWPPP Exhibits
B3 Erosion Control Plan, Demolition Plan & Excavation Plan (as appropriate)
B4 Sampling Locations Plan
B5 Post-Construction (SWMP) Plan
B6 Hydrology Maps
Appendix C Submitted Permit Registration Documents:
C1 PRD Instructions
C2 NOI
C3 Risk Assessment (Sediment and Receiving Water Risk Determination)
C4 Site Map (Including Vicinity Map)
C5 Signed Certification Statement/Fee Statement & WDID Receipt
Appendix D Submitted Changes to PRDs / COIs (due to change in ownership or acreage)
Appendix E SWPPP Amendment Log & SWPPP Amendments
Appendix F Annual Reporting Requirements
Appendix G Runoff Coefficient and Run-on Computation Sheets
Appendix H Construction Activity Schedule & BMP Implementation Schedule
Appendix I CASQA BMP Handbook Fact Sheets
Appendix J Training Documentation Forms & Sample Memorandum to Employees
Appendix K Responsible Parties
Appendix L Contractors and Subcontractors
Appendix M Sample Subcontractor Notification Letter and Log
Appendix N Significant Spill Reports
Appendix O Quick Reference Disposal Alternatives
Appendix P Visual Inspection Forms, Reports & Rain Gauge Log
Appendix Q Rain Event Action Plans (REAPs)
Appendix T Storm Water Sampling Forms
Appendix R Guidance on Field Measurements
Appendix S Pollutant Testing Guidance Table
Appendix U How to Submit an Ad Hoc Report for Construction Site Monitoring
Appendix V NAL/NEL Exceedance Site Evaluations and Non-Compliance Reports
State Water Resources Control Board
Division of Water Quality
1001 I Street • Sacramento, California 95814 • (916) 341-5455
Mailing Address: P.O. Box 100 • Sacramento, California • 95812-0100
Fax (916) 341-5463 • http://www.waterboards.ca.gov
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
Linda S. Adams
Secretary for
Environmental Protection
Arnold Schwarzenegger Governor
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
GENERAL PERMIT FOR
STORM WATER DISCHARGES
ASSOCIATED WITH CONSTRUCTION AND LAND DISTURBANCE
ACTIVITIES
ORDER NO. 2009-0009-DWQ
NPDES NO. CAS000002
This Order was adopted by the State Water Resources Control
Board on: September 2, 2009
This Order shall become effective on: July 1, 2010
This Order shall expire on: September 2, 2014
IT IS HEREBY ORDERED, that this Order supersedes Order No. 99-08-DWQ
[as amended by Order No. 2010-0014-DWQ] except for enforcement purposes.
The Discharger shall comply with the requirements in this Order to meet the
provisions contained in Division 7 of the California Water Code (commencing
with section 13000) and regulations adopted thereunder, and the provisions of
the federal Clean Water Act and regulations and guidelines adopted thereunder.
I, Jeanine Townsend, Clerk to the Board, do hereby certify that this Order with all
attachments is a full, true, and correct copy of an Order adopted by the State
Water Resources Control Board, on September 2, 2009.
AYE: Vice Chair Frances Spivy-Weber
Board Member Arthur G. Baggett, Jr.
Board Member Tam M. Doduc
NAY: Chairman Charles R. Hoppin
ABSENT: None
ABSTAIN: None
Jeanine Townsend
Clerk to the Board
State Water Resources Control Board
Division of Water Quality
1001 I Street • Sacramento, California 95814 • (916) 341-5455
Mailing Address: P.O. Box 100 • Sacramento, California • 95812-0100
Fax (916) 341-5463 • http://www.waterboards.ca.gov
Linda S. Adams
Secretary for
Environmental Protection
Arnold Schwarzenegger Governor
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
GENERAL PERMIT FOR
STORM WATER DISCHARGES
ASSOCIATED WITH CONSTRUCTION AND LAND DISTURBANCE
ACTIVITIES
ORDER NO. 2010-0014-DWQ
NPDES NO. CAS000002
Order No. 2009-0009-DWQ was adopted by the State Water
Resources Control Board on: September 2, 2009
Order No. 2009-0009-DWQ became effective on: July 1, 2010
Order No. 2009-0009-DWQ shall expire on: September 2, 2014
This Order, which amends Order No. 2009-0009-DWQ, was
adopted by the State Water Resources Control Board on: November 16, 2010
This Order shall become effective on: February 14, 2011
IT IS HEREBY ORDERED that this Order amends Order No. 2009-0009-DWQ.
Additions to Order No. 2009-0009-DWQ are reflected in blue-underline text and
deletions are reflected in red-strikeout text.
IT IS FURTHER ORDERED that staff are directed to prepare and post a
conformed copy of Order No. 2009-0009-DWQ incorporating the revisions made
by this Order.
I, Jeanine Townsend, Clerk to the Board, do hereby certify that this Order with all
attachments is a full, true, and correct copy of an Order adopted by the State
Water Resources Control Board, on November 16, 2010.
AYE: Chairman Charles R. Hoppin
Vice Chair Frances Spivy-Weber
Board Member Arthur G. Baggett, Jr.
Board Member Tam M. Doduc
NAY: None
ABSENT: None
ABSTAIN: None
Jeanine Townsend
Clerk to the Board
i
TABLE OF CONTENTS
I. FINDINGS ...................................................................................................................................... 1
II. CONDITIONS FOR PERMIT COVERAGE............................................................................ 14
III. DISCHARGE PROHIBITIONS................................................................................................. 20
IV. SPECIAL PROVISIONS............................................................................................................. 22
V. EFFLUENT STANDARDS ......................................................................................................... 28
VI. RECEIVING WATER LIMITATIONS .................................................................................... 31
VII. TRAINING QUALIFICATIONS AND CERTIFICATION REQUIREMENTS................... 32
VIII. RISK DETERMINATION.......................................................................................................... 33
IX. RISK LEVEL 1 REQUIREMENTS........................................................................................... 34
X. RISK LEVEL 2 REQUIREMENTS........................................................................................... 34
XI. RISK LEVEL 3 REQUIREMENTS........................................................................................... 34
XII. ACTIVE TREATMENT SYSTEMS (ATS)............................................................................... 34
XIII. POST-CONSTRUCTION STANDARDS .................................................................................. 35
XIV. SWPPP REQUIREMENTS ........................................................................................................ 37
XV. REGIONAL WATER BOARD AUTHORITIES...................................................................... 38
XVI. ANNUAL REPORTING REQUIREMENTS............................................................................ 39
LIST OF ATTACHMENTS
Attachment A – Linear Underground/Overhead Requirements
Attachment A.1 – LUP Type Determination
Attachment A.2 – LUP Permit Registration Documents
Attachment B – Permit Registration Documents
Attachment C – Risk Level 1 Requirements
Attachment D – Risk Level 2 Requirements
Attachment E – Risk Level 3 Requirements
Attachment F – Active Treatment System (ATS) Requirements
LIST OF APPENDICES
Appendix 1 – Risk Determination Worksheet
Appendix 2 – Post-Construction Water Balance Performance Standard
Appendix 2.1 – Post-Construction Water Balance Performance Standard Spreadsheet
Appendix 3 – Bioassessment Monitoring Guidelines
Appendix 4 – Adopted/Implemented Sediment TMDLs
Appendix 5 – Glossary
Appendix 6 – Acronyms
Appendix 7 – State and Regional Water Resources Control Board Contacts
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
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Order
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. 2009-0009-DWQ
[AS AMENDED BY ORDER NO. 2010-0014-DWQ]
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
GENERAL PERMIT NO. CAS000002
WASTE DISCHARGE REQUIREMENTS
FOR
DISCHARGES OF STORM WATER RUNOFF ASSOCIATED WITH
CONSTRUCTION AND LAND DISTURBANCE ACTIVITIES
I. FINDINGS
A. General Findings
The State Water Resources Control Board (State Water Board) finds that:
1. The federal Clean Water Act (CWA) prohibits certain discharges of
storm water containing pollutants except in compliance with a National
Pollutant Discharge Elimination System (NPDES) permit (Title 33
United States Code (U.S.C.) §§ 1311 and 1342(p); also referred to as
Clean Water Act (CWA) §§ 301 and 402(p)). The U.S. Environmental
Protection Agency (U.S. EPA) promulgates federal regulations to
implement the CWA’s mandate to control pollutants in storm water
runoff discharges. (Title 40 Code of Federal Regulations (C.F.R.)
Parts 122, 123, and 124). The federal statutes and regulations require
discharges to surface waters comprised of storm water associated with
construction activity, including demolition, clearing, grading, and
excavation, and other land disturbance activities (except operations
that result in disturbance of less than one acre of total land area and
which are not part of a larger common plan of development or sale), to
obtain coverage under an NPDES permit. The NPDES permit must
require implementation of Best Available Technology Economically
Achievable (BAT) and Best Conventional Pollutant Control Technology
(BCT) to reduce or eliminate pollutants in storm water runoff. The
NPDES permit must also include additional requirements necessary to
implement applicable water quality standards.
2. This General Permit authorizes discharges of storm water associated
with construction activity so long as the dischargers comply with all
requirements, provisions, limitations and prohibitions in the permit. In
addition, this General Permit regulates the discharges of storm water
associated with construction activities from all Linear
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Underground/Overhead Projects resulting in the disturbance of greater
than or equal to one acre (Attachment A).
3. This General Permit regulates discharges of pollutants in storm water
associated with construction activity (storm water discharges) to waters
of the United States from construction sites that disturb one or more
acres of land surface, or that are part of a common plan of
development or sale that disturbs more than one acre of land surface.
4. This General Permit does not preempt or supersede the authority of
local storm water management agencies to prohibit, restrict, or control
storm water discharges to municipal separate storm sewer systems or
other watercourses within their jurisdictions.
5. This action to adopt a general NPDES permit is exempt from the
provisions of Chapter 3 of the California Environmental Quality Act
(CEQA) (Public Resources Code Section 21100, et seq.), pursuant to
Section 13389 of the California Water Code.
6. Pursuant to 40 C.F.R. § 131.12 and State Water Board Resolution No.
68-16,1 which incorporates the requirements of § 131.12 where
applicable, the State Water Board finds that discharges in compliance
with this General Permit will not result in the lowering of water quality
standards, and are therefore consistent with those provisions.
Compliance with this General Permit will result in improvements in
water quality.
7. This General Permit serves as an NPDES permit in compliance with
CWA § 402 and will take effect on July 1, 2010 by the State Water
Board provided the Regional Administrator of the U.S. EPA has no
objection. If the U.S. EPA Regional Administrator objects to its
issuance, the General Permit will not become effective until such
objection is withdrawn.
8. Following adoption and upon the effective date of this General Permit,
the Regional Water Quality Control Boards (Regional Water Boards)
shall enforce the provisions herein.
9. Regional Water Boards establish water quality standards in Basin
Plans. The State Water Board establishes water quality standards in
various statewide plans, including the California Ocean Plan. U.S.
EPA establishes water quality standards in the National Toxic Rule
(NTR) and the California Toxic Rule (CTR).
1 Resolution No. 68-16 generally requires that existing water quality be maintained unless degradation is
justified based on specific findings.
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10. This General Permit does not authorize discharges of fill or dredged
material regulated by the U.S. Army Corps of Engineers under CWA §
404 and does not constitute a waiver of water quality certification under
CWA § 401.
11. The primary storm water pollutant at construction sites is excess
sediment. Excess sediment can cloud the water, which reduces the
amount of sunlight reaching aquatic plants, clog fish gills, smother
aquatic habitat and spawning areas, and impede navigation in our
waterways. Sediment also transports other pollutants such as
nutrients, metals, and oils and greases.
12. Construction activities can impact a construction site’s runoff sediment
supply and transport characteristics. These modifications, which can
occur both during and after the construction phase, are a significant
cause of degradation of the beneficial uses established for water
bodies in California. Dischargers can avoid these effects through
better construction site design and activity practices.
13. This General Permit recognizes four distinct phases of construction
activities. The phases are Grading and Land Development Phase,
Streets and Utilities Phase, Vertical Construction Phase, and Final
Landscaping and Site Stabilization Phase. Each phase has activities
that can result in different water quality effects from different water
quality pollutants. This General Permit also recognizes inactive
construction as a category of construction site type.
14. Compliance with any specific limits or requirements contained in this
General Permit does not constitute compliance with any other
applicable requirements.
15. Following public notice in accordance with State and Federal laws and
regulations, the State Water Board heard and considered all comments
and testimony in a public hearing on 06/03/2009. The State Water
Board has prepared written responses to all significant comments.
16. Construction activities obtaining coverage under the General Permit
may have multiple discharges subject to requirements that are specific
to general, linear, and/or active treatment system discharge types.
17. The State Water Board may reopen the permit if the U.S. EPA adopts
a final effluent limitation guideline for construction activities.
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B. Activities Covered Under the General Permit
18. Any construction or demolition activity, including, but not limited to,
clearing, grading, grubbing, or excavation, or any other activity that
results in a land disturbance of equal to or greater than one acre.
19. Construction activity that results in land surface disturbances of less
than one acre if the construction activity is part of a larger common
plan of development or the sale of one or more acres of disturbed land
surface.
20. Construction activity related to residential, commercial, or industrial
development on lands currently used for agriculture including, but not
limited to, the construction of buildings related to agriculture that are
considered industrial pursuant to U.S. EPA regulations, such as dairy
barns or food processing facilities.
21. Construction activity associated with Linear Underground/Overhead
Utility Projects (LUPs) including, but not limited to, those activities
necessary for the installation of underground and overhead linear
facilities (e.g., conduits, substructures, pipelines, towers, poles, cables,
wires, connectors, switching, regulating and transforming equipment
and associated ancillary facilities) and include, but are not limited to,
underground utility mark-out, potholing, concrete and asphalt cutting
and removal, trenching, excavation, boring and drilling, access road
and pole/tower pad and cable/wire pull station, substation construction,
substructure installation, construction of tower footings and/or
foundations, pole and tower installations, pipeline installations,
welding, concrete and/or pavement repair or replacement, and
stockpile/borrow locations.
22. Discharges of sediment from construction activities associated with oil
and gas exploration, production, processing, or treatment operations or
transmission facilities.2
23. Storm water discharges from dredge spoil placement that occur
outside of U.S. Army Corps of Engineers jurisdiction (upland sites) and
that disturb one or more acres of land surface from construction activity
are covered by this General Permit. Construction sites that intend to
disturb one or more acres of land within the jurisdictional boundaries of
2 Pursuant to the Ninth Circuit Court of Appeals’ decision in NRDC v. EPA (9th Cir. 2008) 526 F.3d 591, and
subsequent denial of the U.S. EPA’s petition for reconsideration in November 2008, oil and gas construction
activities discharging storm water contaminated only with sediment are no longer exempt from the NPDES
program.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
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a CWA § 404 permit should contact the appropriate Regional Water
Board to determine whether this permit applies to the site.
C. Activities Not Covered Under the General Permit
24. Routine maintenance to maintain original line and grade, hydraulic
capacity, or original purpose of the facility.
25. Disturbances to land surfaces solely related to agricultural operations
such as disking, harrowing, terracing and leveling, and soil preparation.
26. Discharges of storm water from areas on tribal lands; construction on
tribal lands is regulated by a federal permit.
27. Construction activity and land disturbance involving discharges of
storm water within the Lake Tahoe Hydrologic Unit. The Lahontan
Regional Water Board has adopted its own permit to regulate storm
water discharges from construction activity in the Lake Tahoe
Hydrologic Unit (Regional Water Board 6SLT). Owners of construction
sites in this watershed must apply for the Lahontan Regional Water
Board permit rather than the statewide Construction General Permit.
28. Construction activity that disturbs less than one acre of land surface,
and that is not part of a larger common plan of development or the sale
of one or more acres of disturbed land surface.
29. Construction activity covered by an individual NPDES Permit for storm
water discharges.
30. Discharges from small (1 to 5 acre) construction activities with an
approved Rainfall Erosivity Waiver authorized by U.S. EPA Phase II
regulations certifying to the State Board that small construction activity
will occur only when the Rainfall Erosivity Factor is less than 5 (“R” in
the Revised Universal Soil Loss Equation).
31. Landfill construction activity that is subject to the Industrial General
Permit.
32. Construction activity that discharges to Combined Sewer Systems.
33. Conveyances that discharge storm water runoff combined with
municipal sewage.
34. Discharges of storm water identified in CWA § 402(l)(2), 33 U.S.C. §
1342(l)(2).
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35. Discharges occurring in basins that are not tributary or hydrologically
connected to waters of the United States (for more information contact
your Regional Water Board).
D. Obtaining and Modifying General Permit Coverage
36. This General Permit requires all dischargers to electronically file all
Permit Registration Documents (PRDs), Notices of Termination (NOT),
changes of information, annual reporting, and other compliance
documents required by this General Permit through the State Water
Board’s Storm water Multi-Application and Report Tracking System
(SMARTS) website.
37. Any information provided to the Regional Water Board shall comply
with the Homeland Security Act and any other federal law that
concerns security in the United States; any information that does not
comply should not be submitted.
38. This General Permit grants an exception from the Risk Determination
requirements for existing sites covered under Water Quality Orders No.
99-08-DWQ, and No. 2003-0007-DWQ. For certain sites, adding
additional requirements may not be cost effective. Construction sites
covered under Water Quality Order No. 99-08-DWQ shall obtain permit
coverage at the Risk Level 1. LUPs covered under Water Quality
Order No. 2003-0007-DWQ shall obtain permit coverage as a Type 1
LUP. The Regional Water Boards have the authority to require Risk
Determination to be performed on sites currently covered under Water
Quality Orders No. 99-08-DWQ and No. 2003-0007-DWQ where they
deem it necessary. The State Water Board finds that there are two
circumstances when it may be appropriate for the Regional Water
Boards to require a discharger that had filed an NOI under State Water
Board Order No. 99-08-DWQ to recalculate the site’s risk level. These
circumstances are: (1) when the discharger has a demonstrated
history of noncompliance with State Water Board Order No. 99-08-
DWQ or; (2) when the discharger’s site poses a significant risk of
causing or contributing to an exceedance of a water quality standard
without the implementation of the additional Risk Level 2 or 3
requirements.
E. Prohibitions
39. All discharges are prohibited except for the storm water and non-storm
water discharges specifically authorized by this General Permit or
another NPDES permit. Non-storm water discharges include a wide
variety of sources, including improper dumping, spills, or leakage from
storage tanks or transfer areas. Non-storm water discharges may
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contribute significant pollutant loads to receiving waters. Measures to
control spills, leakage, and dumping, and to prevent illicit connections
during construction must be addressed through structural as well as
non-structural Best Management Practices (BMPs)3. The State Water
Board recognizes, however, that certain non-storm water discharges
may be necessary for the completion of construction.
40. This General Permit prohibits all discharges which contain a
hazardous substance in excess of reportable quantities established in
40 C.F.R. §§ 117.3 and 302.4, unless a separate NPDES Permit has
been issued to regulate those discharges.
41. This General Permit incorporates discharge prohibitions contained in
water quality control plans, as implemented by the State Water Board
and the nine Regional Water Boards.
42. Pursuant to the Ocean Plan, discharges to Areas of Special Biological
Significance (ASBS) are prohibited unless covered by an exception
that the State Water Board has approved.
43. This General Permit prohibits the discharge of any debris4 from
construction sites. Plastic and other trash materials can cause
negative impacts to receiving water beneficial uses. The State Water
Board encourages the use of more environmentally safe,
biodegradable materials on construction sites to minimize the potential
risk to water quality.
F. Training
44. In order to improve compliance with and to maintain consistent
enforcement of this General Permit, all dischargers are required to
appoint two positions - the Qualified SWPPP Developer (QSD) and the
Qualified SWPPP Practitioner (QSP) - who must obtain appropriate
training. Together with the key stakeholders, the State and Regional
Water Boards are leading the development of this curriculum through a
collaborative organization called The Construction General Permit
(CGP) Training Team.
45. The Professional Engineers Act (Bus. & Prof. Code section 6700, et
seq.) requires that all engineering work must be performed by a
California licensed engineer.
3 BMPs are scheduling of activities, prohibitions of practices, maintenance procedures, and other
management practices to prevent or reduce the discharge of pollutants to waters of the United States. BMPs
also include treatment requirements, operating procedures, and practice to control site runoff, spillage or
leaks, sludge or waste disposal, or drainage from raw material storage.
4 Litter, rubble, discarded refuse, and remains of destroyed inorganic anthropogenic waste.
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G. Determining and Reducing Risk
46. The risk of accelerated erosion and sedimentation from wind and water
depends on a number of factors, including proximity to receiving water
bodies, climate, topography, and soil type.
47. This General Permit requires dischargers to assess the risk level of a
site based on both sediment transport and receiving water risk. This
General Permit contains requirements for Risk Levels 1, 2 and 3, and
LUP Risk Type 1, 2, and 3 (Attachment A). Risk levels are established
by determining two factors: first, calculating the site's sediment risk;
and second, receiving water risk during periods of soil exposure (i.e.
grading and site stabilization). Both factors are used to determine the
site-specific Risk Level(s). LUPs can be determined to be Type 1
based on the flowchart in Attachment A.1.
48. Although this General Permit does not mandate specific setback
distances, dischargers are encouraged to set back their construction
activities from streams and wetlands whenever feasible to reduce the
risk of impacting water quality (e.g., natural stream stability and habitat
function). Because there is a reduced risk to receiving waters when
setbacks are used, this General Permit gives credit to setbacks in the
risk determination and post-construction storm water performance
standards. The risk calculation and runoff reduction mechanisms in
this General Permit are expected to facilitate compliance with any
Regional Water Board and local agency setback requirements, and to
encourage voluntary setbacks wherever practicable.
49. Rain events can occur at any time of the year in California. Therefore,
a Rain Event Action Plan (REAP) is necessary for Risk Level 2 and 3
traditional construction projects (LUPs exempt) to ensure that active
construction sites have adequate erosion and sediment controls
implemented prior to the onset of a storm event, even if construction is
planned only during the dry season.
50. Soil particles smaller than 0.02 millimeters (mm) (i.e., finer than
medium silt) do not settle easily using conventional measures for
sediment control (i.e., sediment basins). Given their long settling time,
dislodging these soils results in a significant risk that fine particles will
be released into surface waters and cause unacceptable downstream
impacts. If operated correctly, an Active Treatment System (ATS5) can
prevent or reduce the release of fine particles from construction sites.
5 An ATS is a treatment system that employs chemical coagulation, chemical flocculation, or electro
coagulation in order to reduce turbidity caused by fine suspended sediment.
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Use of an ATS can effectively reduce a site's risk of impacting
receiving waters.
51. Dischargers located in a watershed area where a Total Maximum Daily
Load (TMDL) has been adopted or approved by the Regional Water
Board or U.S. EPA may be required by a separate Regional Water
Board action to implement additional BMPs, conduct additional
monitoring activities, and/or comply with an applicable waste load
allocation and implementation schedule. Such dischargers may also
be required to obtain an individual Regional Water Board permit
specific to the area.
H. Effluent Standards
52. The State Water Board convened a blue ribbon panel of storm water
experts that submitted a report entitled, “The Feasibility of Numeric
Effluent Limits Applicable to Discharges of Storm Water Associated
with Municipal, Industrial and Construction Activities,” dated
June 19, 2006. The panel concluded that numeric limits or action
levels are technically feasible to control construction storm water
discharges, provided that certain conditions are considered. The panel
also concluded that numeric effluent limitations (NELs) are feasible for
discharges from construction sites that utilize an ATS. The State
Water Board has incorporated the expert panel’s suggestions into this
General Permit, which includes both numeric action levels (NALs) and
NELs for pH and turbidity, and special numeric limits for ATS
discharges.
Numeric Effluent Limitations
53. Discharges of storm water from construction activities may become
contaminated from alkaline construction materials resulting in high pH
(greater than pH 7). Alkaline construction materials include, but are
not limited to, hydrated lime, concrete, mortar, cement kiln dust (CKD),
Portland cement treated base (CTB), fly ash, recycled concrete, and
masonry work. This General Permit includes an NEL for pH (6.0-9.0)
that applies only at sites that exhibit a "high risk of high pH discharge."
A "high risk of high pH discharge" can occur during the complete
utilities phase, the complete vertical build phase, and any portion of
any phase where significant amounts of materials are placed directly
on the land at the site in a manner that could result in significant
alterations to the background pH of any discharges.
54. For Risk Level 3 discharges, this General Permit establishes
technology-based, numeric effluent limitations (NELs) for turbidity of
500 NTU. Exceedances of the turbidity NEL constitutes a violation of
this General Permit.
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55. This General Permit establishes a 5 year, 24 hour (expressed in inches
of rainfall) Compliance Storm Event exemption from the technology-
based NELs for Risk Level 3 dischargers.
Determining Compliance with Numeric Limitations
56. This General Permit sets a pH NAL of 6.5 to 8.5, and a turbidity NAL of
250 NTU. The purpose of the NAL and its associated monitoring
requirement is to provide operational information regarding the
performance of the measures used at the site to minimize the
discharge of pollutants and to protect beneficial uses and receiving
waters from the adverse effects of construction-related storm water
discharges. The NALs in this General Permit for pH and turbidity are
not directly enforceable and do not constitute NELs.
57. This General Permit requires dischargers with NAL exceedances to
immediately implement additional BMPs and revise their Storm Water
Pollution Prevention Plans (SWPPPs) accordingly to either prevent
pollutants and authorized non-storm water discharges from
contaminating storm water, or to substantially reduce the pollutants to
levels consistently below the NALs. NAL exceedances are reported in
the State Water Boards SMARTS system, and the discharger is
required to provide an NAL Exceedance Report when requested by a
Regional Water Board.
58. If run-on is caused by a forest fire or any other natural disaster, then
NELs do not apply.
59. Exceedances of the NELs are a violation of this Permit. This General
Permit requires dischargers with NEL exceedances to implement
additional monitoring, BMPs, and revise their SWPPPs accordingly.
Dischargers are required to notify the State and Regional Water
Boards of the violation through the State Water Boards SMARTs
system, and provide an NEL Violation Report sharing additional
information concerning the NEL exceedance.
I. Receiving Water Limitations
60. This General Permit requires all enrolled dischargers to determine the
receiving waters potentially affected by their discharges and to comply
with all applicable water quality standards, including any more stringent
standards applicable to a water body.
J. Sampling, Monitoring, Reporting and Record Keeping
61. Visual monitoring of storm water and non-storm water discharges is
required for all sites subject to this General Permit.
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62. Records of all visual monitoring inspections are required to remain on-
site during the construction period and for a minimum of three years.
63. For all Risk Level 3 and Risk Level 2 sites, this General Permit
requires effluent monitoring for pH and turbidity. Sampling, analysis
and monitoring requirements for effluent monitoring for pH and turbidity
are contained in this General Permit.
64. Risk Level 3 sites in violation of the Numeric Effluent Limitations
contained in this General Permit and with direct discharges to receiving
water are required to conduct receiving water monitoring.
65. For Risk Level 3 sites larger than 30 acres and with direct discharges
to receiving waters, this General Permit requires bioassessment
sampling before and after site completion to determine if significant
degradation to the receiving water’s biota has occurred.
Bioassessment sampling guidelines are contained in this General
Permit.
66. A summary and evaluation of the sampling and analysis results will be
submitted in the Annual Reports.
67. This General Permit contains sampling, analysis and monitoring
requirements for non-visible pollutants at all sites subject to this
General Permit.
68. Compliance with the General Permit relies upon dischargers to
electronically self-report any discharge violations and to comply with
any Regional Water Board enforcement actions.
69. This General Permit requires that all dischargers maintain a paper or
electronic copy of all required records for three years from the date
generated or date submitted, whichever is last. These records must be
available at the construction site until construction is completed. For
LUPs, these documents may be retained in a crew member’s vehicle
and made available upon request.
K. Active Treatment System (ATS) Requirements
70. Active treatment systems add chemicals to facilitate flocculation,
coagulation and filtration of suspended sediment particles. The
uncontrolled release of these chemicals to the environment can
negatively affect the beneficial uses of receiving waters and/or degrade
water quality (e.g., acute and chronic toxicity). Additionally, the batch
storage and treatment of storm water through an ATS' can potentially
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cause physical impacts on receiving waters if storage volume is
inadequate or due to sudden releases of the ATS batches and
improperly designed outfalls.
71. If designed, operated and maintained properly an ATS can achieve
very high removal rates of suspended sediment (measured as
turbidity), albeit at sometimes significantly higher costs than traditional
erosion/sediment control practices. As a result, this General Permit
establishes NELs consistent with the expected level of typical ATS
performance.
72. This General Permit requires discharges of storm water associated
with construction activity that undergo active treatment to comply with
special operational and effluent limitations to ensure that these
discharges do not adversely affect the beneficial uses of the receiving
waters or cause degradation of their water quality.
73. For ATS discharges, this General Permit establishes technology-based
NELs for turbidity.
74. This General Permit establishes a 10 year, 24 hour (expressed in
inches of rainfall) Compliance Storm Event exemption from the
technology-based numeric effluent limitations for ATS discharges.
Exceedances of the ATS turbidity NEL constitutes a violation of this
General Permit.
L. Post-Construction Requirements
75. This General Permit includes performance standards for post-
construction that are consistent with State Water Board Resolution No.
2005-0006, "Resolution Adopting the Concept of Sustainability as a
Core Value for State Water Board Programs and Directing Its
Incorporation," and 2008-0030, “Requiring Sustainable Water
Resources Management.“ The requirement for all construction sites to
match pre-project hydrology will help ensure that the physical and
biological integrity of aquatic ecosystems are sustained. This “runoff
reduction” approach is analogous in principle to Low Impact
Development (LID) and will serve to protect related watersheds and
waterbodies from both hydrologic-based and pollution impacts
associated with the post-construction landscape.
76. LUP projects are not subject to post-construction requirements due to
the nature of their construction to return project sites to pre-
construction conditions.
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M. Storm Water Pollution Prevention Plan Requirements
77. This General Permit requires the development of a site-specific
SWPPP. The SWPPP must include the information needed to
demonstrate compliance with all requirements of this General Permit,
and must be kept on the construction site and be available for review.
The discharger shall ensure that a QSD develops the SWPPP.
78. To ensure proper site oversight, this General Permit requires a
Qualified SWPPP Practitioner to oversee implementation of the BMPs
required to comply with this General Permit.
N. Regional Water Board Authorities
79. Regional Water Boards are responsible for implementation and
enforcement of this General Permit. A general approach to permitting
is not always suitable for every construction site and environmental
circumstances. Therefore, this General Permit recognizes that
Regional Water Boards must have some flexibility and authority to
alter, approve, exempt, or rescind permit authority granted under this
General Permit in order to protect the beneficial uses of our receiving
waters and prevent degradation of water quality.
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IT IS HEREBY ORDERED that all dischargers subject to this General Permit
shall comply with the following conditions and requirements (including all
conditions and requirements as set forth in Attachments A, B, C, D, E and F)6:
II. CONDITIONS FOR PERMIT COVERAGE
A. Linear Underground/Overhead Projects (LUPs)
1. Linear Underground/Overhead Projects (LUPs) include, but are not
limited to, any conveyance, pipe, or pipeline for the transportation of
any gaseous, liquid (including water and wastewater for domestic
municipal services), liquescent, or slurry substance; any cable line or
wire for the transmission of electrical energy; any cable line or wire for
communications (e.g. telephone, telegraph, radio or television
messages); and associated ancillary facilities. Construction activities
associated with LUPs include, but are not limited to, (a) those activities
necessary for the installation of underground and overhead linear
facilities (e.g., conduits, substructures, pipelines, towers, poles, cables,
wires, connectors, switching, regulating and transforming equipment,
and associated ancillary facilities); and include, but are not limited to,
(b) underground utility mark-out, potholing, concrete and asphalt
cutting and removal, trenching, excavation, boring and drilling, access
road and pole/tower pad and cable/wire pull station, substation
construction, substructure installation, construction of tower footings
and/or foundations, pole and tower installations, pipeline installations,
welding, concrete and/ or pavement repair or replacement, and
stockpile/borrow locations.
2. The Legally Responsible Person is responsible for obtaining coverage
under the General Permit where the construction of pipelines, utility
lines, fiber-optic cables, or other linear underground/overhead projects
will occur across several properties unless the LUP construction
activities are covered under another construction storm water permit.
3. Only LUPs shall comply with the conditions and requirements in
Attachment A, A.1 & A.2 of this Order. The balance of this Order is not
applicable to LUPs except as indicated in Attachment A.
6 These attachments are part of the General Permit itself and are not separate documents that are capable
of being updated independently by the State Water Board.
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B. Obtaining Permit Coverage Traditional Construction Sites
1. The Legally Responsible Person (LRP) (see Special Provisions,
Electronic Signature and Certification Requirements, Section IV.I.1)
must obtain coverage under this General Permit.
2. To obtain coverage, the LRP must electronically file Permit
Registration Documents (PRDs) prior to the commencement of
construction activity. Failure to obtain coverage under this General
Permit for storm water discharges to waters of the United States is a
violation of the CWA and the California Water Code.
3. PRDs shall consist of:
a. Notice of Intent (NOI)
b. Risk Assessment (Section VIII)
c. Site Map
d. Storm Water Pollution Prevention Plan (Section XIV)
e. Annual Fee
f. Signed Certification Statement
Any information provided to the Regional Water Board shall comply
with the Homeland Security Act and any other federal law that
concerns security in the United States; any information that does not
comply should not be submitted.
Attachment B contains additional PRD information. Dischargers must
electronically file the PRDs, and mail the appropriate annual fee to the
State Water Board.
4. This permit is effective on July 1, 2010.
a. Dischargers Obtaining Coverage On or After July 1, 2010: All
dischargers requiring coverage on or after July 1, 2010, shall
electronically file their PRDs prior to the commencement of
construction activities, and mail the appropriate annual fee no later
than seven days prior to the commencement of construction
activities. Permit coverage shall not commence until the PRDs and
the annual fee are received by the State Water Board, and a WDID
number is assigned and sent by SMARTS.
b. Dischargers Covered Under 99-08-DWQ and 2003-0007-DWQ:
Existing dischargers subject to State Water Board Order No. 99-08-
DWQ (existing dischargers) will continue coverage under 99-08-
DWQ until July 1, 2010. After July 1, 2010, all NOIs subject to
State Water Board Order No. 99-08-DWQ will be terminated.
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Existing dischargers shall electronically file their PRDs no later than
July 1, 2010. If an existing discharger’s site acreage subject to the
annual fee has changed, it shall mail a revised annual fee no less
than seven days after receiving the revised annual fee notification,
or else lose permit coverage. All existing dischargers shall be
exempt from the risk determination requirements in Section VIII of
this General Permit until two years after permit adoption. All
existing dischargers are therefore subject to Risk Level 1
requirements regardless of their site’s sediment and receiving water
risks. However, a Regional Board retains the authority to require
an existing discharger to comply with the Section VIII risk
determination requirements.
5. The discharger is only considered covered by this General Permit upon
receipt of a Waste Discharger Identification (WDID) number assigned
and sent by the State Water Board Storm water Multi-Application and
Report Tracking System (SMARTS). In order to demonstrate
compliance with this General Permit, the discharger must obtain a
WDID number and must present documentation of a valid WDID upon
demand.
6. During the period this permit is subject to review by the U.S. EPA, the
prior permit (State Water Board Order No. 99-08-DWQ) remains in
effect. Existing dischargers under the prior permit will continue to have
coverage under State Water Board Order No. 99-08-DWQ until this
General Permit takes effect on July 1, 2010. Dischargers who
complete their projects and electronically file an NOT prior to July 1,
2010, are not required to obtain coverage under this General Permit.
7. Small Construction Rainfall Erosivity Waiver
EPA’s Small Construction Erosivity Waiver applies to sites between
one and five acres demonstrating that there are no adverse water
quality impacts.
Dischargers eligible for a Rainfall Erosivity Waiver based on low
erosivity potential shall complete the electronic Notice of Intent (NOI)
and Sediment Risk form through the State Water Board’s SMARTS
system, certifying that the construction activity will take place during a
period when the value of the rainfall erosivity factor is less than five.
Where the LRP changes or another LRP is added during construction,
the new LRP must also submit a waiver certification through the
SMARTS system.
If a small construction site continues beyond the projected completion
date given on the waiver certification, the LRP shall recalculate the
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rainfall erosivity factor for the new project duration and submit this
information through the SMARTS system. If the new R factor is below
five (5), the discharger shall update through SMARTS all applicable
information on the waiver certification and retain a copy of the revised
waiver onsite. The LRP shall submit the new waiver certification 30
days prior to the projected completion date listed on the original waiver
form to assure exemption from permitting requirements is
uninterrupted. If the new R factor is five (5) or above, the LRP shall be
required to apply for coverage under this Order.
8. In the case of a public emergency that requires immediate construction
activities, a discharger shall submit a brief description of the
emergency construction activity within five days of the onset of
construction, and then shall submit all PRDs within thirty days.
C. Revising Permit Coverage for Change of Acreage or New Ownership
1. The discharger may reduce or increase the total acreage covered
under this General Permit when a portion of the site is complete and/or
conditions for termination of coverage have been met (See Section II.D
Conditions for Termination of Coverage); when ownership of a portion
of the site is sold to a different entity; or when new acreage, subject to
this General Permit, is added to the site.
2. Within 30 days of a reduction or increase in total disturbed acreage,
the discharger shall electronically file revisions to the PRDs that
include:
a. A revised NOI indicating the new project size;
b. A revised site map showing the acreage of the site completed,
acreage currently under construction, acreage sold/transferred or
added, and acreage currently stabilized in accordance with the
Conditions for Termination of Coverage in Section II.D below.
c. SWPPP revisions, as appropriate; and
d. Certification that any new landowners have been notified of
applicable requirements to obtain General Permit coverage. The
certification shall include the name, address, telephone number,
and e-mail address of the new landowner.
e. If the project acreage has increased, dischargers shall mail
payment of revised annual fees within 14 days of receiving the
revised annual fee notification.
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3. The discharger shall continue coverage under the General Permit for
any parcel that has not achieved “Final Stabilization” as defined in
Section II.D.
4. When an LRP with active General Permit coverage transfers its LRP
status to another person or entity that qualifies as an LRP, the existing
LRP shall inform the new LRP of the General Permit’s requirements.
In order for the new LRP to continue the construction activity on its
parcel of property, the new LRP, or the new LRP’s approved signatory,
must submit PRDs in accordance with this General Permit’s
requirements.
D. Conditions for Termination of Coverage
1. Within 90 days of when construction is complete or ownership has
been transferred, the discharger shall electronically file a Notice of
Termination (NOT), a final site map, and photos through the State
Water Boards SMARTS system. Filing a NOT certifies that all General
Permit requirements have been met. The Regional Water Board will
consider a construction site complete only when all portions of the site
have been transferred to a new owner, or all of the following conditions
have been met:
a. For purposes of “final stabilization,” the site will not pose any
additional sediment discharge risk than it did prior to the
commencement of construction activity;
b. There is no potential for construction-related storm water pollutants
to be discharged into site runoff;
c. Final stabilization has been reached;
d. Construction materials and wastes have been disposed of properly;
e. Compliance with the Post-Construction Standards in Section XIII of
this General Permit has been demonstrated;
f. Post-construction storm water management measures have been
installed and a long-term maintenance plan7 has been established;
and
g. All construction-related equipment, materials and any temporary
BMPs no longer needed are removed from the site.
7 For the purposes of this requirement a long-term maintenance plan will be designed for a minimum of five
years, and will describe the procedures to ensure that the post-construction storm water management
measures are adequately maintained.
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2. The discharger shall certify that final stabilization conditions are
satisfied in their NOT. Failure to certify shall result in continuation of
permit coverage and annual billing.
3. The NOT must demonstrate through photos, RUSLE or RUSLE2, or
results of testing and analysis that the site meets all of the conditions
above (Section II.D.1) and the final stabilization condition (Section
II.D.1.a) is attained by one of the following methods:
a. “70% final cover method,” no computational proof required
OR:
b. “RUSLE or RUSLE2 method,” computational proof required
OR:
c. “Custom method”, the discharger shall demonstrate in some other
manner than a or b, above, that the site complies with the “final
stabilization” requirement in Section II.D.1.a.
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III. DISCHARGE PROHIBITIONS
A. Dischargers shall not violate any discharge prohibitions contained in
applicable Basin Plans or statewide water quality control plans. Waste
discharges to Areas of Special Biological Significance (ASBS) are
prohibited by the California Ocean Plan, unless granted an exception
issued by the State Water Board.
B. All discharges are prohibited except for the storm water and non-storm
water discharges specifically authorized by this General Permit or another
NPDES permit.
C. Authorized non-storm water discharges may include those from de-
chlorinated potable water sources such as: fire hydrant flushing, irrigation
of vegetative erosion control measures, pipe flushing and testing, water to
control dust, uncontaminated ground water from dewatering, and other
discharges not subject to a separate general NPDES permit adopted by a
Regional Water Board. The discharge of non-storm water is authorized
under the following conditions:
1. The discharge does not cause or contribute to a violation of any water
quality standard;
2. The discharge does not violate any other provision of this General
Permit;
3. The discharge is not prohibited by the applicable Basin Plan;
4. The discharger has included and implemented specific BMPs required
by this General Permit to prevent or reduce the contact of the non-
storm water discharge with construction materials or equipment.
5. The discharge does not contain toxic constituents in toxic amounts or
(other) significant quantities of pollutants;
6. The discharge is monitored and meets the applicable NALs and NELs;
and
7. The discharger reports the sampling information in the Annual Report.
If any of the above conditions are not satisfied, the discharge is not
authorized by this General Permit. The discharger shall notify the
Regional Water Board of any anticipated non-storm water discharges not
already authorized by this General Permit or another NPDES permit, to
determine whether a separate NPDES permit is necessary.
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D. Debris resulting from construction activities are prohibited from being
discharged from construction sites.
E. When soil contamination is found or suspected and a responsible party is
not identified, or the responsible party fails to promptly take the
appropriate action, the discharger shall have those soils sampled and
tested to ensure proper handling and public safety measures are
implemented. The discharger shall notify the appropriate local, State, and
federal agency(ies) when contaminated soil is found at a construction site,
and will notify the appropriate Regional Water Board.
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IV. SPECIAL PROVISIONS
A. Duty to Comply
1. The discharger shall comply with all of the conditions of this General
Permit. Any permit noncompliance constitutes a violation of the Clean
Water Act (CWA) and the Porter-Cologne Water Quality Control Act
and is grounds for enforcement action and/or removal from General
Permit coverage.
2. The discharger shall comply with effluent standards or prohibitions
established under Section 307(a) of the CWA for toxic pollutants within
the time provided in the regulations that establish these standards or
prohibitions, even if this General Permit has not yet been modified to
incorporate the requirement.
B. General Permit Actions
1. This General Permit may be modified, revoked and reissued, or
terminated for cause. The filing of a request by the discharger for a
General Permit modification, revocation and reissuance, or
termination, or a notification of planned changes or anticipated
noncompliance does not annul any General Permit condition.
2. If any toxic effluent standard or prohibition (including any schedule of
compliance specified in such effluent standard or prohibition) is
promulgated under Section 307(a) of the CWA for a toxic pollutant
which is present in the discharge and that standard or prohibition is
more stringent than any limitation on the pollutant in this General
Permit, this General Permit shall be modified or revoked and reissued
to conform to the toxic effluent standard or prohibition and the
dischargers so notified.
C. Need to Halt or Reduce Activity Not a Defense
It shall not be a defense for a discharger in an enforcement action that it
would have been necessary to halt or reduce the permitted activity in
order to maintain compliance with the conditions of this General Permit.
D. Duty to Mitigate
The discharger shall take all responsible steps to minimize or prevent any
discharge in violation of this General Permit, which has a reasonable
likelihood of adversely affecting human health or the environment.
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E. Proper Operation and Maintenance
The discharger shall at all times properly operate and maintain any
facilities and systems of treatment and control (and related
appurtenances) which are installed or used by the discharger to achieve
compliance with the conditions of this General Permit. Proper operation
and maintenance also includes adequate laboratory controls and
appropriate quality assurance procedures. Proper operation and
maintenance may require the operation of backup or auxiliary facilities or
similar systems installed by a discharger when necessary to achieve
compliance with the conditions of this General Permit.
F. Property Rights
This General Permit does not convey any property rights of any sort or
any exclusive privileges, nor does it authorize any injury to private
property or any invasion of personal rights, nor does it authorize any
infringement of Federal, State, or local laws or regulations.
G. Duty to Maintain Records and Provide Information
1. The discharger shall maintain a paper or electronic copy of all required
records, including a copy of this General Permit, for three years from
the date generated or date submitted, whichever is last. These
records shall be available at the construction site until construction is
completed.
2. The discharger shall furnish the Regional Water Board, State Water
Board, or U.S. EPA, within a reasonable time, any requested
information to determine compliance with this General Permit. The
discharger shall also furnish, upon request, copies of records that are
required to be kept by this General Permit.
H. Inspection and Entry
The discharger shall allow the Regional Water Board, State Water Board,
U.S. EPA, and/or, in the case of construction sites which discharge
through a municipal separate storm sewer, an authorized representative of
the municipal operator of the separate storm sewer system receiving the
discharge, upon the presentation of credentials and other documents as
may be required by law, to:
1. Enter upon the discharger’s premises at reasonable times where a
regulated construction activity is being conducted or where records
must be kept under the conditions of this General Permit;
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2. Access and copy at reasonable times any records that must be kept
under the conditions of this General Permit;
3. Inspect at reasonable times the complete construction site, including
any off-site staging areas or material storage areas, and the
erosion/sediment controls; and
4. Sample or monitor at reasonable times for the purpose of ensuring
General Permit compliance.
I. Electronic Signature and Certification Requirements
1. All Permit Registration Documents (PRDs) and Notices of Termination
(NOTs) shall be electronically signed, certified, and submitted via
SMARTS to the State Water Board. Either the Legally Responsible
Person (LRP), as defined in Appendix 5 – Glossary, or a person legally
authorized to sign and certify PRDs and NOTs on behalf of the LRP
(the LRP’s Approved Signatory, as defined in Appendix 5 - Glossary)
must submit all information electronically via SMARTS.
2. Changes to Authorization. If an Approved Signatory’s authorization is
no longer accurate, a new authorization satisfying the requirements of
paragraph (a) of this section must be submitted via SMARTS prior to or
together with any reports, information or applications to be signed by
an Approved Signatory.
3. All Annual Reports, or other information required by the General Permit
(other than PRDs and NOTs) or requested by the Regional Water
Board, State Water Board, U.S. EPA, or local storm water
management agency shall be certified and submitted by the LRP or the
LRP’s Approved Signatory.
J. Certification
Any person signing documents under Section IV.I above, shall make the
following certification:
"I certify under penalty of law that this document and all attachments were
prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person or persons
who manage the system or those persons directly responsible for
gathering the information, to the best of my knowledge and belief, the
information submitted is, true, accurate, and complete. I am aware that
there are significant penalties for submitting false information, including
the possibility of fine and imprisonment for knowing violations."
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K. Anticipated Noncompliance
The discharger shall give advance notice to the Regional Water Board and
local storm water management agency of any planned changes in the
construction activity, which may result in noncompliance with General
Permit requirements.
L. Bypass
Bypass8 is prohibited. The Regional Water Board may take enforcement
action against the discharger for bypass unless:
1. Bypass was unavoidable to prevent loss of life, personal injury or
severe property damage;9
2. There were no feasible alternatives to bypass, such as the use of
auxiliary treatment facilities, retention of untreated waste, or
maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate back-up equipment should have
been installed in the exercise of reasonable engineering judgment to
prevent a bypass that could occur during normal periods of equipment
downtime or preventative maintenance;
3. The discharger submitted a notice at least ten days in advance of the
need for a bypass to the Regional Water Board; or
4. The discharger may allow a bypass to occur that does not cause
effluent limitations to be exceeded, but only if it is for essential
maintenance to assure efficient operation. In such a case, the above
bypass conditions are not applicable. The discharger shall submit
notice of an unanticipated bypass as required.
M. Upset
1. A discharger that wishes to establish the affirmative defense of an
upset10 in an action brought for noncompliance shall demonstrate,
8 The intentional diversion of waste streams from any portion of a treatment facility 9 Severe property damage means substantial physical damage to property, damage to the treatment
facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that
can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean
economic loss caused by delays in production.
10 An exceptional incident in which there is unintentional and temporary noncompliance the technology
based numeric effluent limitations because of factors beyond the reasonable control of the discharger. An
upset does not include noncompliance to the extent caused by operational error, improperly designed
treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper
operation.
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through properly signed, contemporaneous operating logs, or other
relevant evidence that:
a. An upset occurred and that the discharger can identify the cause(s)
of the upset
b. The treatment facility was being properly operated by the time of
the upset
c. The discharger submitted notice of the upset as required; and
d. The discharger complied with any remedial measures required
2. No determination made before an action of noncompliance occurs,
such as during administrative review of claims that noncompliance was
caused by an upset, is final administrative action subject to judicial
review.
3. In any enforcement proceeding, the discharger seeking to establish the
occurrence of an upset has the burden of proof
N. Penalties for Falsification of Reports
Section 309(c)(4) of the CWA provides that any person who knowingly
makes any false material statement, representation, or certification in any
record or other document submitted or required to be maintained under
this General Permit, including reports of compliance or noncompliance
shall upon conviction, be punished by a fine of not more than $10,000 or
by imprisonment for not more than two years or by both.
O. Oil and Hazardous Substance Liability
Nothing in this General Permit shall be construed to preclude the
institution of any legal action or relieve the discharger from any
responsibilities, liabilities, or penalties to which the discharger is or may be
subject to under Section 311 of the CWA.
P. Severability
The provisions of this General Permit are severable; and, if any provision
of this General Permit or the application of any provision of this General
Permit to any circumstance is held invalid, the application of such
provision to other circumstances and the remainder of this General Permit
shall not be affected thereby.
Q. Reopener Clause
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This General Permit may be modified, revoked and reissued, or
terminated for cause due to promulgation of amended regulations, receipt
of U.S. EPA guidance concerning regulated activities, judicial decision, or
in accordance with 40 Code of Federal Regulations (CFR) 122.62, 122.63,
122.64, and 124.5.
R. Penalties for Violations of Permit Conditions
1. Section 309 of the CWA provides significant penalties for any person
who violates a permit condition implementing Sections 301, 302, 306,
307, 308, 318, or 405 of the CWA or any permit condition or limitation
implementing any such section in a permit issued under Section 402.
Any person who violates any permit condition of this General Permit is
subject to a civil penalty not to exceed $37,50011 per calendar day of
such violation, as well as any other appropriate sanction provided by
Section 309 of the CWA.
2. The Porter-Cologne Water Quality Control Act also provides for civil
and criminal penalties, which in some cases are greater than those
under the CWA.
S. Transfers
This General Permit is not transferable.
T. Continuation of Expired Permit
This General Permit continues in force and effect until a new General
Permit is issued or the SWRCB rescinds this General Permit. Only those
dischargers authorized to discharge under the expiring General Permit are
covered by the continued General Permit.
11 May be further adjusted in accordance with the Federal Civil Penalties Inflation Adjustment Act.
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V. EFFLUENT STANDARDS
A. Narrative Effluent Limitations
1. Storm water discharges and authorized non-storm water discharges
regulated by this General Permit shall not contain a hazardous
substance equal to or in excess of reportable quantities established in
40 C.F.R. §§ 117.3 and 302.4, unless a separate NPDES Permit has
been issued to regulate those discharges.
2. Dischargers shall minimize or prevent pollutants in storm water
discharges and authorized non-storm water discharges through the
use of controls, structures, and management practices that achieve
BAT for toxic and non-conventional pollutants and BCT for
conventional pollutants.
B. Numeric Effluent Limitations (NELs)
Table 1- Numeric Effluent Limitations, Numeric Action Levels, Test Methods,
Detection Limits, and Reporting Units
Parameter Test
Method
Discharge
Type
Min.
Detection
Limit
Units Numeric
Action
Level
Numeric
Effluent
Limitation
Risk Level 2
lower NAL =
6.5
upper NAL =
8.5
N/A
pH
Field test
with
calibrated
portable
instrument Risk Level 3
0.2 pH
units lower NAL =
6.5
upper NAL =
8.5
lower NEL =
6.0
upper NEL =
9.0
Risk Level 2 250 NTU N/A Turbidity EPA
0180.1
and/or field
test with
calibrated
portable
instrument
Risk Level 3
1 NTU
250 NTU 500 NTU
1. Numeric Effluent Limitations (NELs):
a. Storm Event, Daily Average pH Limits – For Risk Level 3
dischargers, the pH of storm water and non-storm water discharges
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shall be within the ranges specified in Table 1 during any site phase
where there is a "high risk of pH discharge."12
b. Storm Event Daily Average Turbidity Limit – For Risk Level 3
dischargers, the turbidity of storm water and non-storm water
discharges shall not exceed 500 NTU.
2. If daily average sampling results are outside the range of pH NELs
(i.e., is below the lower NEL for pH or exceeds the upper NEL for pH)
or exceeds the turbidity NEL (as listed in Table 1), the discharger is in
violation of this General Permit and shall electronically file monitoring
results in violation within 5 business days of obtaining the results.
3. Compliance Storm Event:
Discharges of storm water from Risk Level 3 sites shall comply with
applicable NELs (above) unless the storm event causing the
discharges is determined after the fact to be equal to or larger than the
Compliance Storm Event (expressed in inches of rainfall). The
Compliance Storm Event for Risk Level 3 discharges is the 5 year,
24 hour storm (expressed in tenths of an inch of rainfall), as
determined by using these maps:
http://www.wrcc.dri.edu/pcpnfreq/nca5y24.gif
http://www.wrcc.dri.edu/pcpnfreq/sca5y24.gif
Compliance storm event verification shall be done by reporting on-site
rain gauge readings as well as nearby governmental rain gauge
readings.
4. Dischargers shall not be required to comply with NELs if the site
receives run-on from a forest fire or any other natural disaster.
C. Numeric Action Levels (NALs)
1. For Risk Level 2 and 3 dischargers, the lower storm event average
NAL for pH is 6.5 pH units and the upper storm event average NAL for
pH is 8.5 pH units. The discharger shall take actions as described
below if the discharge is outside of this range of pH values.
12 A period of high risk of pH discharge is defined as a project's complete utilities phase, complete vertical
build phase, and any portion of any phase where significant amounts of materials are placed directly on the
land at the site in a manner that could result in significant alterations of the background pH of the
discharges.
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2. For Risk Level 2 and 3 dischargers, the NAL storm event daily average
for turbidity is 250 NTU. The discharger shall take actions as
described below if the discharge is outside of this range of turbidity
values.
3. Whenever the results from a storm event daily average indicate that
the discharge is below the lower NAL for pH, exceeds the upper NAL
for pH, or exceeds the turbidity NAL (as listed in Table 1), the
discharger shall conduct a construction site and run-on evaluation to
determine whether pollutant source(s) associated with the site’s
construction activity may have caused or contributed to the NAL
exceedance and shall immediately implement corrective actions if they
are needed.
4. The site evaluation shall be documented in the SWPPP and
specifically address whether the source(s) of the pollutants causing the
exceedance of the NAL:
a. Are related to the construction activities and whether additional
BMPs are required to (1) meet BAT/BCT requirements; (2) reduce
or prevent pollutants in storm water discharges from causing
exceedances of receiving water objectives; and (3) determine what
corrective action(s) were taken or will be taken and with a
description of the schedule for completion.
AND/OR:
b. Are related to the run-on associated with the construction site
location and whether additional BMPs measures are required to (1)
meet BAT/BCT requirements; (2) reduce or prevent pollutants in
storm water discharges from causing exceedances of receiving
water objectives; and (3) what corrective action(s) were taken or
will be taken with a description of the schedule for completion.
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VI. RECEIVING WATER LIMITATIONS
A. The discharger shall ensure that storm water discharges and authorized
non-storm water discharges to any surface or ground water will not
adversely affect human health or the environment.
B. The discharger shall ensure that storm water discharges and authorized
non-storm water discharges will not contain pollutants in quantities that
threaten to cause pollution or a public nuisance.
C. The discharger shall ensure that storm water discharges and authorized
non-storm water discharges will not contain pollutants that cause or
contribute to an exceedance of any applicable water quality objectives or
water quality standards (collectively, WQS) contained in a Statewide
Water Quality Control Plan, the California Toxics Rule, the National Toxics
Rule, or the applicable Regional Water Board’s Water Quality Control Plan
(Basin Plan).
D. Dischargers located within the watershed of a CWA § 303(d) impaired
water body, for which a TMDL has been approved by the U.S. EPA, shall
comply with the approved TMDL if it identifies “construction activity” or
land disturbance as a source of the pollution.
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VII. TRAINING QUALIFICATIONS AND CERTIFICATION
REQUIREMENTS
A. General
The discharger shall ensure that all persons responsible for implementing
requirements of this General Permit shall be appropriately trained in
accordance with this Section. Training should be both formal and
informal, occur on an ongoing basis, and should include training offered by
recognized governmental agencies or professional organizations. Those
responsible for preparing and amending SWPPPs shall comply with the
requirements in this Section VII.
The discharger shall provide documentation of all training for persons
responsible for implementing the requirements of this General Permit in
the Annual Reports.
B. SWPPP Certification Requirements
1. Qualified SWPPP Developer: The discharger shall ensure that
SWPPPs are written, amended and certified by a Qualified SWPPP
Developer (QSD). A QSD shall have one of the following registrations
or certifications, and appropriate experience, as required for:
a. A California registered professional civil engineer;
b. A California registered professional geologist or engineering
geologist;
c. A California registered landscape architect;
d. A professional hydrologist registered through the American Institute
of Hydrology;
e. A Certified Professional in Erosion and Sediment Control (CPESC)
TM registered through Enviro Cert International, Inc.;
f. A Certified Professional in Storm Water Quality (CPSWQ) TM
registered through Enviro Cert International, Inc.;
g. A professional in erosion and sediment control registered through
the National Institute for Certification in Engineering Technologies
(NICET); or
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Effective two years after the adoption date of this General Permit, a
QSD shall have attended a State Water Board-sponsored or approved
QSD training course.
2. The discharger shall list the name and telephone number of the
currently designated Qualified SWPPP Developer(s) in the SWPPP.
3. Qualified SWPPP Practitioner: The discharger shall ensure that all
BMPs required by this General Permit are implemented by a Qualified
SWPPP Practitioner (QSP). A QSP is a person responsible for non-
storm water and storm water visual observations, sampling and
analysis. Effective two years from the date of adoption of this General
Permit, a QSP shall be either a QSD or have one of the following
certifications:
a. A certified erosion, sediment and storm water inspector registered
through Enviro Cert International, Inc.; or
b. A certified inspector of sediment and erosion control registered
through Certified Inspector of Sediment and Erosion Control, Inc.
Effective two years after the adoption date of this General Permit, a
QSP shall have attended a State Water Board-sponsored or approved
QSP training course.
4. The LRP shall list in the SWPPP, the name of any Approved Signatory,
and provide a copy of the written agreement or other mechanism that
provides this authority from the LRP in the SWPPP.
5. The discharger shall include, in the SWPPP, a list of names of all
contractors, subcontractors, and individuals who will be directed by the
Qualified SWPPP Practitioner. This list shall include telephone
numbers and work addresses. Specific areas of responsibility of each
subcontractor and emergency contact numbers shall also be included.
6. The discharger shall ensure that the SWPPP and each amendment will
be signed by the Qualified SWPPP Developer. The discharger shall
include a listing of the date of initial preparation and the date of each
amendment in the SWPPP.
VIII. RISK DETERMINATION
The discharger shall calculate the site's sediment risk and receiving water risk
during periods of soil exposure (i.e. grading and site stabilization) and use the
calculated risks to determine a Risk Level(s) using the methodology in
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Appendix 1. For any site that spans two or more planning watersheds,13 the
discharger shall calculate a separate Risk Level for each planning watershed.
The discharger shall notify the State Water Board of the site’s Risk Level
determination(s) and shall include this determination as a part of submitting
the PRDs. If a discharger ends up with more than one Risk Level
determination, the Regional Water Board may choose to break the project
into separate levels of implementation.
IX. RISK LEVEL 1 REQUIREMENTS
Risk Level 1 Dischargers shall comply with the requirements included in
Attachment C of this General Permit.
X. RISK LEVEL 2 REQUIREMENTS
Risk Level 2 Dischargers shall comply with the requirements included in
Attachment D of this General Permit.
XI. RISK LEVEL 3 REQUIREMENTS
Risk Level 3 Dischargers shall comply with the requirements included in
Attachment E of this General Permit.
XII. ACTIVE TREATMENT SYSTEMS (ATS)
Dischargers choosing to implement an ATS on their site shall comply with all of
the requirements in Attachment F of this General Permit.
13 Planning watershed: defined by the Calwater Watershed documents as a watershed that ranges in size
from approximately 3,000 to 10,000 acres http://cain.ice.ucdavis.edu/calwater/calwfaq.html,
http://gis.ca.gov/catalog/BrowseRecord.epl?id=22175 .
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XIII. POST-CONSTRUCTION STANDARDS
A. All dischargers shall comply with the following runoff reduction
requirements unless they are located within an area subject to post-
construction standards of an active Phase I or II municipal separate storm
sewer system (MS4) permit that has an approved Storm Water
Management Plan.
1. This provision shall take effect three years from the adoption date of
this permit, or later at the discretion of the Executive Officer of the
Regional Board.
2. The discharger shall demonstrate compliance with the requirements of
this section by submitting with their NOI a map and worksheets in
accordance with the instructions in Appendix 2. The discharger shall
use non-structural controls unless the discharger demonstrates that
non-structural controls are infeasible or that structural controls will
produce greater reduction in water quality impacts.
3. The discharger shall, through the use of non-structural and structural
measures as described in Appendix 2, replicate the pre-project water
balance (for this permit, defined as the volume of rainfall that ends up
as runoff) for the smallest storms up to the 85th percentile storm event
(or the smallest storm event that generates runoff, whichever is larger).
Dischargers shall inform Regional Water Board staff at least 30 days
prior to the use of any structural control measure used to comply with
this requirement. Volume that cannot be addressed using non-
structural practices shall be captured in structural practices and
approved by the Regional Water Board. When seeking Regional
Board approval for the use of structural practices, dischargers shall
document the infeasibility of using non-structural practices on the
project site, or document that there will be fewer water quality impacts
through the use of structural practices.
4. For sites whose disturbed area exceeds two acres, the discharger shall
preserve the pre-construction drainage density (miles of stream length
per square mile of drainage area) for all drainage areas within the area
serving a first order stream14 or larger stream and ensure that post-
project time of runoff concentration is equal or greater than pre-project
time of concentration.
14 A first order stream is defined as a stream with no tributaries.
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B. All dischargers shall implement BMPs to reduce pollutants in storm water
discharges that are reasonably foreseeable after all construction phases
have been completed at the site (Post-construction BMPs).
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XIV. SWPPP REQUIREMENTS
A. The discharger shall ensure that the Storm Water Pollution Prevention
Plans (SWPPPs) for all traditional project sites are developed and
amended or revised by a QSD. The SWPPP shall be designed to address
the following objectives:
1. All pollutants and their sources, including sources of sediment
associated with construction, construction site erosion and all other
activities associated with construction activity are controlled;
2. Where not otherwise required to be under a Regional Water Board
permit, all non-storm water discharges are identified and either
eliminated, controlled, or treated;
3. Site BMPs are effective and result in the reduction or elimination of
pollutants in storm water discharges and authorized non-storm water
discharges from construction activity to the BAT/BCT standard;
4. Calculations and design details as well as BMP controls for site run-on
are complete and correct, and
5. Stabilization BMPs installed to reduce or eliminate pollutants after
construction are completed.
B. To demonstrate compliance with requirements of this General Permit, the
QSD shall include information in the SWPPP that supports the
conclusions, selections, use, and maintenance of BMPs.
C. The discharger shall make the SWPPP available at the construction site
during working hours while construction is occurring and shall be made
available upon request by a State or Municipal inspector. When the
original SWPPP is retained by a crewmember in a construction vehicle
and is not currently at the construction site, current copies of the BMPs
and map/drawing will be left with the field crew and the original SWPPP
shall be made available via a request by radio/telephone.
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XV. REGIONAL WATER BOARD AUTHORITIES
A. In the case where the Regional Water Board does not agree with the
discharger’s self-reported risk level (e.g., they determine themselves to be
a Level 1 Risk when they are actually a Level 2 Risk site), Regional Water
Boards may either direct the discharger to reevaluate the Risk Level(s) for
their site or terminate coverage under this General Permit.
B. Regional Water Boards may terminate coverage under this General
Permit for dischargers who fail to comply with its requirements or where
they determine that an individual NPDES permit is appropriate.
C. Regional Water Boards may require dischargers to submit a Report of
Waste Discharge / NPDES permit application for Regional Water Board
consideration of individual requirements.
D. Regional Water Boards may require additional Monitoring and Reporting
Program Requirements, including sampling and analysis of discharges to
sediment-impaired water bodies.
E. Regional Water Boards may require dischargers to retain records for more
than the three years required by this General Permit.
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Order
XVI. ANNUAL REPORTING REQUIREMENTS
A. All dischargers shall prepare and electronically submit an Annual Report
no later than September 1 of each year.
B. The discharger shall certify each Annual Report in accordance with the
Special Provisions.
C. The discharger shall retain an electronic or paper copy of each Annual
Report for a minimum of three years after the date the annual report is
filed.
D. The discharger shall include storm water monitoring information in the
Annual Report consisting of:
1. a summary and evaluation of all sampling and analysis results,
including copies of laboratory reports;
2. the analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results that
are less than the method detection limit shall be reported as "less than
the method detection limit");
3. a summary of all corrective actions taken during the compliance year;
4. identification of any compliance activities or corrective actions that
were not implemented;
5. a summary of all violations of the General Permit;
6. the names of individual(s) who performed the facility inspections,
sampling, visual observation (inspections), and/or measurements;
7. the date, place, time of facility inspections, sampling, visual
observation (inspections), and/or measurements, including
precipitation (rain gauge); and
8. the visual observation and sample collection exception records and
reports specified in Attachments C, D, and E.
E. The discharger shall provide training information in the Annual Report
consisting of:
1. documentation of all training for individuals responsible for all activities
associated with compliance with this General Permit;
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40
2. documentation of all training for individuals responsible for BMP
installation, inspection, maintenance, and repair; and
3. documentation of all training for individuals responsible for overseeing,
revising, and amending the SWPPP.
ATTACHMENT A
Linear Underground/Overhead Requirements
EXCLUDED FROM THIS VERSION – NOT APPLICALBE
COMPLETE ORDER IS AVAILABLE AT THE WEBSITE BELOW:
http://www.swrcb.ca.gov/water_issues/programs/stormwater/constpermits.shtml
ATTACHMENT B
ATTACHMENT B
PERMIT REGISTRATION DOCUMENTS (PRDs) TO COMPLY WITH THE TERMS
OF THE GENERAL PERMIT TO DISCHARGE STORM WATER
ASSOCIATED WITH CONSTRUCTION ACTIVITY
GENERAL INSTRUCTIONS
A. All Linear Construction Projects shall comply with the PRD requirements in
Attachment A.2 of this Order.
B. Who Must Submit
Discharges of storm water associated with construction that results in the
disturbance of one acre or more of land must apply for coverage under the
General Construction Storm Water Permit (General Permit). Any construction
activity that is a part of a larger common plan of development or sale must also
be permitted, regardless of size. (For example, if 0.5 acre of a 20-acre
subdivision is disturbed by the construction activities of discharger A and the
remaining 19.5 acres is to be developed by discharger B, discharger A must
obtain a General Storm Water Permit for the 0.5 acre project).
Other discharges from construction activities that are covered under this General
Permit can be found in the General Permit Section II.B.
It is the LRP’s responsibility to obtain coverage under this General Permit by
electronically submitting complete PRDs (Permit Registration Documents).
In all cases, the proper procedures for submitting the PRDs must be completed
before construction can commence.
C. Construction Activity Not Covered By This General Permit
Discharges from construction that are not covered under this General Permit can
be found in the General Permit Sections II.A &B..
D. Annual Fees and Fee Calculation
Annual fees are calculated based upon the total area of land to be disturbed not
the total size of the acreage owned. However, the calculation includes all acres
to be disturbed during the duration of the project. For example, if 10 acres are
scheduled to be disturbed the first year and 10 in each subsequent year for 5
years, the annual fees would be based upon 50 acres of disturbance. The State
Water Board will evaluate adding acreage to an existing Permit Waste Discharge
Identification (WDID) number on a case-by-case basis. In general, any acreage
to be considered must be contiguous to the permitted land area and the existing
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1
ATTACHMENT B
SWPPP must be appropriate for the construction activity and topography of the
acreage under consideration. As acreage is built out and stabilized or sold, the
Change of Information (COI) form enables the applicant to remove those acres
from inclusion in the annual fee calculation. Checks should be made payable to:
State Water Board.
The Annual fees are established through regulations adopted by the State Water
Board. The total annual fee is the current base fee plus applicable surcharges for
all construction sites submitting an NOI, based on the total acreage to be
disturbed during the life of the project. Annual fees are subject to change by
regulation.
Dischargers that apply for and satisfy the Small Construction Erosivity Wavier
requirements shall pay a fee of $200.00 plus an applicable surcharge, see the
General Permit Section II.B.7.
E. When to Apply
LRP’s proposing to conduct construction activities subject to this General Permit
must submit their PRDs prior to the commencement of construction activity.
F. Requirements for Completing Permit Registration Documents (PRDs)
All dischargers required to comply with this General Permit shall electronically
submit the required PRDs for their type of construction as defined below.
G. Standard PRD Requirements (All Dischargers)
1. Notice of Intent
2. Risk Assessment (Standard or Site-Specific)
3. Site Map
4. SWPPP
5. Annual Fee
6. Certification
H. Additional PRD Requirements Related to Construction Type
1. Discharger in unincorporated areas of the State (not covered under an
adopted Phase I or II SUSMP requirements) and that are not a linear project
shall also submit a completed:
a. Post-Construction Water Balance Calculator (Appendix 2).
2. Dischargers who are proposing to implement ATS shall submit:
a. Complete ATS Plan in accordance with Attachment F at least 14 days
prior to the planned operation of the ATS and a paper copy shall be
available onsite during ATS operation.
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ATTACHMENT B
b. Certification proof that design done by a professional in accordance with
Attachment F.
3. Dischargers who are proposing an alternate Risk Justification:
a. Particle Size Analysis.
I. Exceptions to Standard PRD Requirements
Construction sites with an R value less than 5 as determined in the Risk
Assessment are not required to submit a SWPPP.
J. Description of PRDs
1. Notice of Intent (NOI)
2. Site Map(s) Includes:
a. The project’s surrounding area (vicinity)
b. Site layout
c. Construction site boundaries
d. Drainage areas
e. Discharge locations
f. Sampling locations
g. Areas of soil disturbance (temporary or permanent)
h. Active areas of soil disturbance (cut or fill)
i. Locations of all runoff BMPs
j. Locations of all erosion control BMPs
k. Locations of all sediment control BMPs
l. ATS location (if applicable)
m. Locations of sensitive habitats, watercourses, or other features which are
not to be disturbed
n. Locations of all post-construction BMPs
o. Locations of storage areas for waste, vehicles, service, loading/unloading
of materials, access (entrance/exits) points to construction site, fueling,
and water storage, water transfer for dust control and compaction
practices
3. SWPPPs
A site-specific SWPPP shall be developed by each discharger and shall be
submitted with the PRDs.
4. Risk Assessment
All dischargers shall use the Risk Assessment procedure as describe in the
General Permit Appendix 1.
a. The Standard Risk Assessment includes utilization of the following:
i. Receiving water Risk Assessment interactive map
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ATTACHMENT B
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
4
ii. EPA Rainfall Erosivity Factor Calculator Website
iii. Sediment Risk interactive map
iv. Sediment sensitive water bodies list
b. The Site-Specific Risk Assessment includes the completion of the hand
calculated R value Risk Calculator
5. Post-Construction Water Balance Calculator
All dischargers subject to this requirement shall complete the Water Balance
Calculator (in Appendix 2) in accordance with the instructions.
6. ATS Design Document and Certification
All dischargers using ATS must submit electronically their system design (as
well as any supporting documentation) and proof that the system was
designed by a qualified ATS design professional (See Attachment F).
To obtain coverage under the General Permit PRDs must be included and completed.
If any of the required items are missing, the PRD submittal is considered incomplete
and will be rejected. Upon receipt of a complete PRD submittal, the State Water Board
will process the application package in the order received and assign a (WDID) number.
Questions?
If you have any questions on completing the PRDs please email
stormwater@waterboards.ca.gov or call (866) 563-3107.
ATTACHMENT C
ATTACHMENT C
RISK LEVEL 1 REQUIREMENTS
A. Effluent Standards
[These requirements are the same as those in the General Permit order.]
1. Narrative – Risk Level 1 dischargers shall comply with the narrative
effluent standards listed below:
a. Storm water discharges and authorized non-storm water
discharges regulated by this General Permit shall not contain a
hazardous substance equal to or in excess of reportable quantities
established in 40 C.F.R. §§ 117.3 and 302.4, unless a separate
NPDES Permit has been issued to regulate those discharges.
b. Dischargers shall minimize or prevent pollutants in storm water
discharges and authorized non-storm water discharges through the
use of controls, structures, and management practices that achieve
BAT for toxic and non-conventional pollutants and BCT for
conventional pollutants.
2. Numeric – Risk Level 1 dischargers are not subject to a numeric
effluent standard.
B. Good Site Management "Housekeeping"
1. Risk Level 1 dischargers shall implement good site management (i.e.,
"housekeeping") measures for construction materials that could
potentially be a threat to water quality if discharged. At a minimum,
Risk Level 1 dischargers shall implement the following good
housekeeping measures:
a. Conduct an inventory of the products used and/or expected to be
used and the end products that are produced and/or expected to be
produced. This does not include materials and equipment that are
designed to be outdoors and exposed to environmental conditions
(i.e. poles, equipment pads, cabinets, conductors, insulators,
bricks, etc.).
b. Cover and berm loose stockpiled construction materials that are not
actively being used (i.e. soil, spoils, aggregate, fly-ash, stucco,
hydrated lime, etc.).
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c. Store chemicals in watertight containers (with appropriate
secondary containment to prevent any spillage or leakage) or in a
storage shed (completely enclosed).
d. Minimize exposure of construction materials to precipitation. This
does not include materials and equipment that are designed to be
outdoors and exposed to environmental conditions (i.e. poles,
equipment pads, cabinets, conductors, insulators, bricks, etc.).
e. Implement BMPs to prevent the off-site tracking of loose
construction and landscape materials.
2. Risk Level 1 dischargers shall implement good housekeeping
measures for waste management, which, at a minimum, shall consist
of the following:
a. Prevent disposal of any rinse or wash waters or materials on
impervious or pervious site surfaces or into the storm drain system.
b. Ensure the containment of sanitation facilities (e.g., portable toilets)
to prevent discharges of pollutants to the storm water drainage
system or receiving water.
c. Clean or replace sanitation facilities and inspecting them regularly
for leaks and spills.
d. Cover waste disposal containers at the end of every business day
and during a rain event.
e. Prevent discharges from waste disposal containers to the storm
water drainage system or receiving water.
f. Contain and securely protect stockpiled waste material from wind
and rain at all times unless actively being used.
g. Implement procedures that effectively address hazardous and non-
hazardous spills.
h. Develop a spill response and implementation element of the
SWPPP prior to commencement of construction activities. The
SWPPP shall require that:
i. Equipment and materials for cleanup of spills shall be available
on site and that spills and leaks shall be cleaned up immediately
and disposed of properly; and
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ATTACHMENT C
ii. Appropriate spill response personnel are assigned and trained.
i. Ensure the containment of concrete washout areas and other
washout areas that may contain additional pollutants so there is no
discharge into the underlying soil and onto the surrounding areas.
3. Risk Level 1 dischargers shall implement good housekeeping for
vehicle storage and maintenance, which, at a minimum, shall consist of
the following:
a. Prevent oil, grease, or fuel to leak in to the ground, storm drains or
surface waters.
b. Place all equipment or vehicles, which are to be fueled, maintained
and stored in a designated area fitted with appropriate BMPs.
c. Clean leaks immediately and disposing of leaked materials
properly.
4. Risk Level 1 dischargers shall implement good housekeeping for
landscape materials, which, at a minimum, shall consist of the
following:
a. Contain stockpiled materials such as mulches and topsoil when
they are not actively being used.
b. Contain fertilizers and other landscape materials when they are not
actively being used.
c. Discontinue the application of any erodible landscape material
within 2 days before a forecasted rain event or during periods of
precipitation.
d. Apply erodible landscape material at quantities and application
rates according to manufacture recommendations or based on
written specifications by knowledgeable and experienced field
personnel.
e. Stack erodible landscape material on pallets and covering or
storing such materials when not being used or applied.
5. Risk Level 1 dischargers shall conduct an assessment and create a list
of potential pollutant sources and identify any areas of the site where
additional BMPs are necessary to reduce or prevent pollutants in storm
water discharges and authorized non-storm water discharges. This
potential pollutant list shall be kept with the SWPPP and shall identify
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ATTACHMENT C
all non-visible pollutants which are known, or should be known, to
occur on the construction site. At a minimum, when developing BMPs,
Risk Level 1 dischargers shall do the following:
a. Consider the quantity, physical characteristics (e.g., liquid, powder,
solid), and locations of each potential pollutant source handled,
produced, stored, recycled, or disposed of at the site.
b. Consider the degree to which pollutants associated with those
materials may be exposed to and mobilized by contact with storm
water.
c. Consider the direct and indirect pathways that pollutants may be
exposed to storm water or authorized non-storm water discharges.
This shall include an assessment of past spills or leaks, non-storm
water discharges, and discharges from adjoining areas.
d. Ensure retention of sampling, visual observation, and inspection
records.
e. Ensure effectiveness of existing BMPs to reduce or prevent
pollutants in storm water discharges and authorized non-storm
water discharges.
6. Risk Level 1 dischargers shall implement good housekeeping
measures on the construction site to control the air deposition of site
materials and from site operations. Such particulates can include, but
are not limited to, sediment, nutrients, trash, metals, bacteria, oil and
grease and organics.
C. Non-Storm Water Management
1. Risk Level 1 dischargers shall implement measures to control all non-
storm water discharges during construction.
2. Risk Level 1 dischargers shall wash vehicles in such a manner as to
prevent non-storm water discharges to surface waters or MS4
drainage systems.
3. Risk Level 1 dischargers shall clean streets in such a manner as to
prevent unauthorized non-storm water discharges from reaching
surface water or MS4 drainage systems.
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ATTACHMENT C
D. Erosion Control
1. Risk Level 1 dischargers shall implement effective wind erosion
control.
2. Risk Level 1 dischargers shall provide effective soil cover for inactive1
areas and all finished slopes, open space, utility backfill, and
completed lots.
3. Risk Level 1 dischargers shall limit the use of plastic materials when
more sustainable, environmentally friendly alternatives exist. Where
plastic materials are deemed necessary, the discharger shall consider
the use of plastic materials resistant to solar degradation.
E. Sediment Controls
1. Risk Level 1 dischargers shall establish and maintain effective
perimeter controls and stabilize all construction entrances and exits to
sufficiently control erosion and sediment discharges from the site.
2. On sites where sediment basins are to be used, Risk Level 1
dischargers shall, at minimum, design sediment basins according to
the method provided in CASQA’s Construction BMP Guidance
Handbook.
F. Run-on and Runoff Controls
Risk Level 1 dischargers shall effectively manage all run-on, all runoff
within the site and all runoff that discharges off the site. Run-on from off
site shall be directed away from all disturbed areas or shall collectively be
in compliance with the effluent limitations in this General Permit.
G. Inspection, Maintenance and Repair
1. Risk Level 1 dischargers shall ensure that all inspection, maintenance
repair and sampling activities at the project location shall be performed
or supervised by a Qualified SWPPP Practitioner (QSP) representing
the discharger. The QSP may delegate any or all of these activities to
an employee trained to do the task(s) appropriately, but shall ensure
adequate deployment.
2. Risk Level 1 dischargers shall perform weekly inspections and
observations, and at least once each 24-hour period during extended
1 Inactive areas of construction are areas of construction activity that have been disturbed and are not
scheduled to be re-disturbed for at least 14 days.
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ATTACHMENT C
storm events, to identify and record BMPs that need maintenance to
operate effectively, that have failed, or that could fail to operate as
intended. Inspectors shall be the QSP or be trained by the QSP.
3. Upon identifying failures or other shortcomings, as directed by the
QSP, Risk Level 1 dischargers shall begin implementing repairs or
design changes to BMPs within 72 hours of identification and complete
the changes as soon as possible.
4. For each inspection required, Risk Level 1 dischargers shall complete
an inspection checklist, using a form provided by the State Water
Board or Regional Water Board or in an alternative format.
5. Risk Level 1 dischargers shall ensure that checklists shall remain
onsite with the SWPPP and at a minimum, shall include:
a. Inspection date and date the inspection report was written.
b. Weather information, including presence or absence of
precipitation, estimate of beginning of qualifying storm event,
duration of event, time elapsed since last storm, and approximate
amount of rainfall in inches.
c. Site information, including stage of construction, activities
completed, and approximate area of the site exposed.
d. A description of any BMPs evaluated and any deficiencies noted.
e. If the construction site is safely accessible during inclement
weather, list the observations of all BMPs: erosion controls,
sediment controls, chemical and waste controls, and non-storm
water controls. Otherwise, list the results of visual inspections at all
relevant outfalls, discharge points, downstream locations and any
projected maintenance activities.
f. Report the presence of noticeable odors or of any visible sheen on
the surface of any discharges.
g. Any corrective actions required, including any necessary changes
to the SWPPP and the associated implementation dates.
h. Photographs taken during the inspection, if any.
i. Inspector’s name, title, and signature.
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ATTACHMENT C
H. Rain Event Action Plan
Not required for Risk Level 1 dischargers.
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ATTACHMENT C
I. Risk Level 1 Monitoring and Reporting Requirements
Table 1- Summary of Monitoring Requirements
Visual Inspections Sample Collection
Pre-storm
Event Risk
Level
Quarterly
Non-
storm
Water
Discharge
Baseline REAP
Daily
Storm
BMP
Post
Storm
Storm
Water
Discharge
Receiving
Water
1 X X X X
1. Construction Site Monitoring Program Requirements
a. Pursuant to Water Code Sections 13383 and 13267, all dischargers
subject to this General Permit shall develop and implement a
written site-specific Construction Site Monitoring Program (CSMP)
in accordance with the requirements of this Section. The CSMP
shall include all monitoring procedures and instructions, location
maps, forms, and checklists as required in this section. The CSMP
shall be developed prior to the commencement of construction
activities, and revised as necessary to reflect project revisions. The
CSMP shall be a part of the Storm Water Pollution Prevention Plan
(SWPPP), included as an appendix or separate SWPPP chapter.
b. Existing dischargers registered under the State Water Board Order
No. 99-08-DWQ shall make and implement necessary revisions to
their Monitoring Programs to reflect the changes in this General
Permit in a timely manner, but no later than July 1, 2010. Existing
dischargers shall continue to implement their existing Monitoring
Programs in compliance with State Water Board Order No. 99-08-
DWQ until the necessary revisions are completed according to the
schedule above.
c. When a change of ownership occurs for all or any portion of the
construction site prior to completion or final stabilization, the new
discharger shall comply with these requirements as of the date the
ownership change occurs.
2. Objectives
The CSMP shall be developed and implemented to address the
following objectives:
a. To demonstrate that the site is in compliance with the Discharge
Prohibitions;
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ATTACHMENT C
b. To determine whether non-visible pollutants are present at the
construction site and are causing or contributing to exceedances of
water quality objectives;
c. To determine whether immediate corrective actions, additional Best
Management Practice (BMP) implementation, or SWPPP revisions
are necessary to reduce pollutants in storm water discharges and
authorized non-storm water discharges; and
d. To determine whether BMPs included in the SWPPP are effective
in preventing or reducing pollutants in storm water discharges and
authorized non-storm water discharges.
3. Risk Level 1 - Visual Monitoring (Inspection) Requirements for
Qualifying Rain Events
a. Risk Level 1 dischargers shall visually observe (inspect) storm
water discharges at all discharge locations within two business
days (48 hours) after each qualifying rain event.
b. Risk Level 1 dischargers shall visually observe (inspect) the
discharge of stored or contained storm water that is derived from
and discharged subsequent to a qualifying rain event producing
precipitation of ½ inch or more at the time of discharge. Stored or
contained storm water that will likely discharge after operating
hours due to anticipated precipitation shall be observed prior to the
discharge during operating hours.
c. Risk Level 1 dischargers shall conduct visual observations
(inspections) during business hours only.
d. Risk Level 1 dischargers shall record the time, date and rain gauge
reading of all qualifying rain events.
e. Within 2 business days (48 hours) prior to each qualifying rain
event, Risk Level 1 dischargers shall visually observe (inspect):
i. All storm water drainage areas to identify any spills, leaks, or
uncontrolled pollutant sources. If needed, the discharger shall
implement appropriate corrective actions.
ii. All BMPs to identify whether they have been properly
implemented in accordance with the SWPPP. If needed, the
discharger shall implement appropriate corrective actions.
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ATTACHMENT C
iii. Any storm water storage and containment areas to detect leaks
and ensure maintenance of adequate freeboard.
f. For the visual observations (inspections) described in e.i and e.iii
above, Risk Level 1 dischargers shall observe the presence or
absence of floating and suspended materials, a sheen on the
surface, discolorations, turbidity, odors, and source(s) of any
observed pollutants.
g. Within two business days (48 hours) after each qualifying rain
event, Risk Level 1 dischargers shall conduct post rain event visual
observations (inspections) to (1) identify whether BMPs were
adequately designed, implemented, and effective, and (2) identify
additional BMPs and revise the SWPPP accordingly.
h. Risk Level 1 dischargers shall maintain on-site records of all visual
observations (inspections), personnel performing the observations,
observation dates, weather conditions, locations observed, and
corrective actions taken in response to the observations.
4. Risk Level 1 – Visual Observation Exemptions
a. Risk Level 1 dischargers shall be prepared to conduct visual
observation (inspections) until the minimum requirements of
Section I.3 above are completed. Risk Level 1 dischargers are not
required to conduct visual observation (inspections) under the
following conditions:
i. During dangerous weather conditions such as flooding and
electrical storms.
ii. Outside of scheduled site business hours.
b. If no required visual observations (inspections) are collected due to
these exceptions, Risk Level 1 dischargers shall include an
explanation in their SWPPP and in the Annual Report documenting
why the visual observations (inspections) were not conducted.
5. Risk Level 1 – Monitoring Methods
Risk Level 1 dischargers shall include a description of the visual
observation locations, visual observation procedures, and visual
observation follow-up and tracking procedures in the CSMP.
6. Risk Level 1 – Non-Storm Water Discharge Monitoring
Requirements
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ATTACHMENT C
a. Visual Monitoring Requirements:
i. Risk Level 1 dischargers shall visually observe (inspect) each
drainage area for the presence of (or indications of prior)
unauthorized and authorized non-storm water discharges and
their sources.
ii. Risk Level 1 dischargers shall conduct one visual observation
(inspection) quarterly in each of the following periods: January-
March, April-June, July-September, and October-December.
Visual observation (inspections) are only required during
daylight hours (sunrise to sunset).
iii. Risk Level 1 dischargers shall ensure that visual observations
(inspections) document the presence or evidence of any non-
storm water discharge (authorized or unauthorized), pollutant
characteristics (floating and suspended material, sheen,
discoloration, turbidity, odor, etc.), and source. Risk Level 1
dischargers shall maintain on-site records indicating the
personnel performing the visual observation (inspections), the
dates and approximate time each drainage area and non-storm
water discharge was observed, and the response taken to
eliminate unauthorized non-storm water discharges and to
reduce or prevent pollutants from contacting non-storm water
discharges.
7. Risk Level 1 – Non-Visible Pollutant Monitoring Requirements
a. Risk Level 1 dischargers shall collect one or more samples during
any breach, malfunction, leakage, or spill observed during a visual
inspection which could result in the discharge of pollutants to
surface waters that would not be visually detectable in storm water.
b. Risk Level 1 dischargers shall ensure that water samples are large
enough to characterize the site conditions.
c. Risk Level 1 dischargers shall collect samples at all discharge
locations that can be safely accessed.
d. Risk Level 1 dischargers shall collect samples during the first two
hours of discharge from rain events that occur during business
hours and which generate runoff.
e. Risk Level 1 dischargers shall analyze samples for all non-visible
pollutant parameters (if applicable) - parameters indicating the
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ATTACHMENT C
presence of pollutants identified in the pollutant source assessment
required (Risk Level 1 dischargers shall modify their CSMPs to
address these additional parameters in accordance with any
updated SWPPP pollutant source assessment).
f. Risk Level 1 dischargers shall collect a sample of storm water that
has not come in contact with the disturbed soil or the materials
stored or used on-site (uncontaminated sample) for comparison
with the discharge sample.
g. Risk Level 1 dischargers shall compare the uncontaminated sample
to the samples of discharge using field analysis or through
laboratory analysis.2
h. Risk Level 1 dischargers shall keep all field /or analytical data in the
SWPPP document.
8. Risk Level 1 – Particle Size Analysis for Project Risk Justification
Risk Level 1 dischargers justifying an alternative project risk shall
report a soil particle size analysis used to determine the RUSLE K-
Factor. ASTM D-422 (Standard Test Method for Particle-Size Analysis
of Soils), as revised, shall be used to determine the percentages of
sand, very fine sand, silt, and clay on the site.
9. Risk Level 1 – Records
Risk Level 1 dischargers shall retain records of all storm water
monitoring information and copies of all reports (including Annual
Reports) for a period of at least three years. Risk Level 1 dischargers
shall retain all records on-site while construction is ongoing. These
records include:
a. The date, place, time of facility inspections, sampling, visual
observation (inspections), and/or measurements, including
precipitation.
b. The individual(s) who performed the facility inspections, sampling,
visual observation (inspections), and or measurements.
c. The date and approximate time of analyses.
d. The individual(s) who performed the analyses.
2 For laboratory analysis, all sampling, sample preservation, and analyses must be conducted according to
test procedures under 40 CFR Part 136. Field discharge samples shall be collected and analyzed according
to the specifications of the manufacturer of the sampling devices employed.
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ATTACHMENT C
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13
e. A summary of all analytical results from the last three years, the
method detection limits and reporting units, and the analytical
techniques or methods used.
f. Rain gauge readings from site inspections.
g. Quality assurance/quality control records and results.
h. Non-storm water discharge inspections and visual observation
(inspections) and storm water discharge visual observation records
(see Sections I.3 and I.6 above).
i. Visual observation and sample collection exception records (see
Section I.4 above).
j. The records of any corrective actions and follow-up activities that
resulted from analytical results, visual observation (inspections), or
inspections.
ATTACHMENT D
ATTACHMENT D
RISK LEVEL 2 REQUIREMENTS
A. Effluent Standards
[These requirements are the same as those in the General Permit order.]
1. Narrative – Risk Level 2 dischargers shall comply with the narrative
effluent standards listed below:
a. Storm water discharges and authorized non-storm water
discharges regulated by this General Permit shall not contain a
hazardous substance equal to or in excess of reportable quantities
established in 40 C.F.R. §§ 117.3 and 302.4, unless a separate
NPDES Permit has been issued to regulate those discharges.
b. Dischargers shall minimize or prevent pollutants in storm water
discharges and authorized non-storm water discharges through the
use of controls, structures, and management practices that achieve
BAT for toxic and non-conventional pollutants and BCT for
conventional pollutants.
2. Numeric – Risk level 2 dischargers are subject to a pH NAL of 6.5-8.5,
and a turbidity NAL of 250 NTU.
B. Good Site Management "Housekeeping"
1. Risk Level 2 dischargers shall implement good site management (i.e.,
"housekeeping") measures for construction materials that could
potentially be a threat to water quality if discharged. At a minimum,
Risk Level 2 dischargers shall implement the following good
housekeeping measures:
a. Conduct an inventory of the products used and/or expected to be
used and the end products that are produced and/or expected to be
produced. This does not include materials and equipment that are
designed to be outdoors and exposed to environmental conditions
(i.e. poles, equipment pads, cabinets, conductors, insulators,
bricks, etc.).
b. Cover and berm loose stockpiled construction materials that are not
actively being used (i.e. soil, spoils, aggregate, fly-ash, stucco,
hydrated lime, etc.).
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ATTACHMENT D
c. Store chemicals in watertight containers (with appropriate
secondary containment to prevent any spillage or leakage) or in a
storage shed (completely enclosed).
d. Minimize exposure of construction materials to precipitation. This
does not include materials and equipment that are designed to be
outdoors and exposed to environmental conditions (i.e. poles,
equipment pads, cabinets, conductors, insulators, bricks, etc.).
e. Implement BMPs to prevent the off-site tracking of loose
construction and landscape materials.
2. Risk Level 2 dischargers shall implement good housekeeping
measures for waste management, which, at a minimum, shall consist
of the following:
a. Prevent disposal of any rinse or wash waters or materials on
impervious or pervious site surfaces or into the storm drain system.
b. Ensure the containment of sanitation facilities (e.g., portable toilets)
to prevent discharges of pollutants to the storm water drainage
system or receiving water.
c. Clean or replace sanitation facilities and inspecting them regularly
for leaks and spills.
d. Cover waste disposal containers at the end of every business day
and during a rain event.
e. Prevent discharges from waste disposal containers to the storm
water drainage system or receiving water.
f. Contain and securely protect stockpiled waste material from wind
and rain at all times unless actively being used.
g. Implement procedures that effectively address hazardous and non-
hazardous spills.
h. Develop a spill response and implementation element of the
SWPPP prior to commencement of construction activities. The
SWPPP shall require:
i. Equipment and materials for cleanup of spills shall be available
on site and that spills and leaks shall be cleaned up immediately
and disposed of properly.
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ATTACHMENT D
ii. Appropriate spill response personnel are assigned and trained.
i. Ensure the containment of concrete washout areas and other
washout areas that may contain additional pollutants so there is no
discharge into the underlying soil and onto the surrounding areas.
3. Risk Level 2 dischargers shall implement good housekeeping for
vehicle storage and maintenance, which, at a minimum, shall consist of
the following:
a. Prevent oil, grease, or fuel to leak in to the ground, storm drains or
surface waters.
b. Place all equipment or vehicles, which are to be fueled, maintained
and stored in a designated area fitted with appropriate BMPs.
c. Clean leaks immediately and disposing of leaked materials
properly.
4. Risk Level 2 dischargers shall implement good housekeeping for
landscape materials, which, at a minimum, shall consist of the
following:
a. Contain stockpiled materials such as mulches and topsoil when
they are not actively being used.
b. Contain all fertilizers and other landscape materials when they are
not actively being used.
c. Discontinue the application of any erodible landscape material
within 2 days before a forecasted rain event or during periods of
precipitation.
d. Apply erodible landscape material at quantities and application
rates according to manufacture recommendations or based on
written specifications by knowledgeable and experienced field
personnel.
e. Stack erodible landscape material on pallets and covering or
storing such materials when not being used or applied.
5. Risk Level 2 dischargers shall conduct an assessment and create a list
of potential pollutant sources and identify any areas of the site where
additional BMPs are necessary to reduce or prevent pollutants in storm
water discharges and authorized non-storm water discharges. This
potential pollutant list shall be kept with the SWPPP and shall identify
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ATTACHMENT D
all non-visible pollutants which are known, or should be known, to
occur on the construction site. At a minimum, when developing BMPs,
Risk Level 2 dischargers shall do the following:
a. Consider the quantity, physical characteristics (e.g., liquid, powder,
solid), and locations of each potential pollutant source handled,
produced, stored, recycled, or disposed of at the site.
b. Consider the degree to which pollutants associated with those
materials may be exposed to and mobilized by contact with storm
water.
c. Consider the direct and indirect pathways that pollutants may be
exposed to storm water or authorized non-storm water discharges.
This shall include an assessment of past spills or leaks, non-storm
water discharges, and discharges from adjoining areas.
d. Ensure retention of sampling, visual observation, and inspection
records.
e. Ensure effectiveness of existing BMPs to reduce or prevent
pollutants in storm water discharges and authorized non-storm
water discharges.
6. Risk Level 2 dischargers shall implement good housekeeping
measures on the construction site to control the air deposition of site
materials and from site operations. Such particulates can include, but
are not limited to, sediment, nutrients, trash, metals, bacteria, oil and
grease and organics.
7. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall
document all housekeeping BMPs in the SWPPP and REAP(s) in
accordance with the nature and phase of the construction project.
Construction phases at traditional land development projects include
Grading and Land Development Phase, Streets and Utilities, or
Vertical Construction for traditional land development projects.
C. Non-Storm Water Management
1. Risk Level 2 dischargers shall implement measures to control all non-
storm water discharges during construction.
2. Risk Level 2 dischargers shall wash vehicles in such a manner as to
prevent non-storm water discharges to surface waters or MS4
drainage systems.
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ATTACHMENT D
3. Risk Level 2 dischargers shall clean streets in such a manner as to
prevent unauthorized non-storm water discharges from reaching
surface water or MS4 drainage systems.
D. Erosion Control
1. Risk Level 2 dischargers shall implement effective wind erosion
control.
2. Risk Level 2 dischargers shall provide effective soil cover for inactive1
areas and all finished slopes, open space, utility backfill, and
completed lots.
3. Risk Level 2 dischargers shall limit the use of plastic materials when
more sustainable, environmentally friendly alternatives exist. Where
plastic materials are deemed necessary, the discharger shall consider
the use of plastic materials resistant to solar degradation.
E. Sediment Controls
1. Risk Level 2 dischargers shall establish and maintain effective
perimeter controls and stabilize all construction entrances and exits to
sufficiently control erosion and sediment discharges from the site.
2. On sites where sediment basins are to be used, Risk Level 2
dischargers shall, at minimum, design sediment basins according to
the method provided in CASQA’s Construction BMP Guidance
Handbook.
3. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall
implement appropriate erosion control BMPs (runoff control and soil
stabilization) in conjunction with sediment control BMPs for areas
under active2 construction.
4. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall
apply linear sediment controls along the toe of the slope, face of the
slope, and at the grade breaks of exposed slopes to comply with sheet
flow lengths3 in accordance with Table 1.
1 Inactive areas of construction are areas of construction activity that have been disturbed and are not
scheduled to be re-disturbed for at least 14 days. 2 Active areas of construction are areas undergoing land surface disturbance. This includes construction
activity during the preliminary stage, mass grading stage, streets and utilities stage and the vertical
construction stage. 3 Sheet flow length is the length that shallow, low velocity flow travels across a site.
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ATTACHMENT D
Table 1 - Critical Slope/Sheet Flow Length Combinations
Slope Percentage Sheet flow length not
to exceed
0-25% 20 feet
25-50% 15 feet
Over 50% 10 feet
5. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall
ensure that construction activity traffic to and from the project is limited
to entrances and exits that employ effective controls to prevent offsite
tracking of sediment.
6. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall
ensure that all storm drain inlets and perimeter controls, runoff control
BMPs, and pollutant controls at entrances and exits (e.g. tire washoff
locations) are maintained and protected from activities that reduce their
effectiveness.
7. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall
inspect on a daily basis all immediate access roads daily. At a
minimum daily (when necessary) and prior to any rain event, the
discharger shall remove any sediment or other construction activity-
related materials that are deposited on the roads (by vacuuming or
sweeping).
F. Run-on and Run-off Controls
Risk Level 2 dischargers shall effectively manage all run-on, all runoff
within the site and all runoff that discharges off the site. Run-on from off
site shall be directed away from all disturbed areas or shall collectively be
in compliance with the effluent limitations in this General Permit.
G. Inspection, Maintenance and Repair
1. Risk Level 2 dischargers shall ensure that all inspection, maintenance
repair and sampling activities at the project location shall be performed
or supervised by a Qualified SWPPP Practitioner (QSP) representing
the discharger. The QSP may delegate any or all of these activities to
an employee appropriately trained to do the task(s).
2. Risk Level 2 dischargers shall perform weekly inspections and
observations, and at least once each 24-hour period during extended
storm events, to identify and record BMPs that need maintenance to
operate effectively, that have failed, or that could fail to operate as
intended. Inspectors shall be the QSP or be trained by the QSP.
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3. Upon identifying failures or other shortcomings, as directed by the
QSP, Risk Level 2 dischargers shall begin implementing repairs or
design changes to BMPs within 72 hours of identification and complete
the changes as soon as possible.
4. For each inspection required, Risk Level 2 dischargers shall complete
an inspection checklist, using a form provided by the State Water
Board or Regional Water Board or in an alternative format.
5. Risk Level 2 dischargers shall ensure that checklists shall remain
onsite with the SWPPP and at a minimum, shall include:
a. Inspection date and date the inspection report was written.
b. Weather information, including presence or absence of
precipitation, estimate of beginning of qualifying storm event,
duration of event, time elapsed since last storm, and approximate
amount of rainfall in inches.
c. Site information, including stage of construction, activities
completed, and approximate area of the site exposed.
d. A description of any BMPs evaluated and any deficiencies noted.
e. If the construction site is safely accessible during inclement
weather, list the observations of all BMPs: erosion controls,
sediment controls, chemical and waste controls, and non-storm
water controls. Otherwise, list the results of visual inspections at all
relevant outfalls, discharge points, downstream locations and any
projected maintenance activities.
f. Report the presence of noticeable odors or of any visible sheen on
the surface of any discharges.
g. Any corrective actions required, including any necessary changes
to the SWPPP and the associated implementation dates.
h. Photographs taken during the inspection, if any.
i. Inspector’s name, title, and signature.
H. Rain Event Action Plan
1. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP develop a Rain Event Action Plan (REAP) 48 hours prior to any
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likely precipitation event. A likely precipitation event is any weather
pattern that is forecast to have a 50% or greater probability of
producing precipitation in the project area. The discharger shall
ensure a QSP obtain a printed copy of precipitation forecast
information from the National Weather Service Forecast Office (e.g., by
entering the zip code of the project’s location at
http://www.srh.noaa.gov/forecast).
2. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP develop the REAPs for all phases of construction (i.e., Grading
and Land Development, Streets and Utilities, Vertical Construction,
Final Landscaping and Site Stabilization).
3. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP ensure that the REAP include, at a minimum, the following site
information:
a. Site Address
b. Calculated Risk Level (2 or 3)
c. Site Storm Water Manager Information including the name,
company, and 24-hour emergency telephone number
d. Erosion and Sediment Control Provider information including the
name, company, and 24-hour emergency telephone number
e. Storm Water Sampling Agent information including the name,
company, and 24-hour emergency telephone number
4. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP include in the REAP, at a minimum, the following project phase
information:
a. Activities associated with each construction phase
b. Trades active on the construction site during each construction
phase
c. Trade contractor information
d. Suggested actions for each project phase
5. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP develop additional REAPs for project sites where construction
activities are indefinitely halted or postponed (Inactive Construction).
At a minimum, Inactive Construction REAPs must include:
a. Site Address
b. Calculated Risk Level (2 or 3)
c. Site Storm Water Manager Information including the name,
company, and 24-hour emergency telephone number
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d. Erosion and Sediment Control Provider information including the
name, company, and 24-hour emergency telephone number
e. Storm Water Sampling Agent information including the name,
company, and 24-hour emergency telephone number
f. Trades active on site during Inactive Construction
g. Trade contractor information
h. Suggested actions for inactive construction sites
6. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP begin implementation and make the REAP available onsite no
later than 24 hours prior to the likely precipitation event.
7. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP maintain onsite a paper copy of each REAP onsite in compliance
with the record retention requirements of the Special Provisions in this
General Permit.
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I. Risk Level 2 Monitoring and Reporting Requirements
Table 2- Summary of Monitoring Requirements
Visual Inspections Sample Collection
Pre-storm
Event Risk
Level
Quarterly
Non-
storm
Water
Discharge
Baseline REAP
Daily
Storm
BMP
Post
Storm
Storm
Water
Discharge
Receiving
Water
2 X X X X X X
1. Construction Site Monitoring Program Requirements
a. Pursuant to Water Code Sections 13383 and 13267, all dischargers
subject to this General Permit shall develop and implement a
written site-specific Construction Site Monitoring Program (CSMP)
in accordance with the requirements of this Section. The CSMP
shall include all monitoring procedures and instructions, location
maps, forms, and checklists as required in this section. The CSMP
shall be developed prior to the commencement of construction
activities, and revised as necessary to reflect project revisions. The
CSMP shall be a part of the Storm Water Pollution Prevention Plan
(SWPPP), included as an appendix or separate SWPPP chapter.
b. Existing dischargers registered under the State Water Board Order
No. 99-08-DWQ shall make and implement necessary revisions to
their Monitoring Program to reflect the changes in this General
Permit in a timely manner, but no later than July 1, 2010. Existing
dischargers shall continue to implement their existing Monitoring
Programs in compliance with State Water Board Order No. 99-08-
DWQ until the necessary revisions are completed according to the
schedule above.
c. When a change of ownership occurs for all or any portion of the
construction site prior to completion or final stabilization, the new
discharger shall comply with these requirements as of the date the
ownership change occurs.
2. Objectives
The CSMP shall be developed and implemented to address the
following objectives:
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a. To demonstrate that the site is in compliance with the Discharge
Prohibitions and applicable Numeric Action Levels (NALs)/Numeric
Effluent Limitations (NELs) of this General Permit.
b. To determine whether non-visible pollutants are present at the
construction site and are causing or contributing to exceedances of
water quality objectives.
c. To determine whether immediate corrective actions, additional Best
Management Practice (BMP) implementation, or SWPPP revisions
are necessary to reduce pollutants in storm water discharges and
authorized non-storm water discharges.
d. To determine whether BMPs included in the SWPPP/Rain Event
Action Plan (REAP) are effective in preventing or reducing
pollutants in storm water discharges and authorized non-storm
water discharges.
3. Risk Level 2 – Visual Monitoring (Inspection) Requirements for
Qualifying Rain Events
a. Risk Level 2 dischargers shall visually observe (inspect) storm
water discharges at all discharge locations within two business
days (48 hours) after each qualifying rain event.
b. Risk Level 2 dischargers shall visually observe (inspect) the
discharge of stored or contained storm water that is derived from
and discharged subsequent to a qualifying rain event producing
precipitation of ½ inch or more at the time of discharge. Stored or
contained storm water that will likely discharge after operating
hours due to anticipated precipitation shall be observed prior to the
discharge during operating hours.
c. Risk Level 2 dischargers shall conduct visual observations
(inspections) during business hours only.
d. Risk Level 2 dischargers shall record the time, date and rain gauge
reading of all qualifying rain events.
e. Within 2 business days (48 hours) prior to each qualifying rain
event, Risk Level 2 dischargers shall visually observe (inspect):
i. all storm water drainage areas to identify any spills, leaks, or
uncontrolled pollutant sources. If needed, the discharger shall
implement appropriate corrective actions.
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ii. all BMPs to identify whether they have been properly
implemented in accordance with the SWPPP/REAP. If needed,
the discharger shall implement appropriate corrective actions.
iii. any storm water storage and containment areas to detect leaks
and ensure maintenance of adequate freeboard.
f. For the visual observations (inspections) described in c.i and c.iii
above, Risk Level 2 dischargers shall observe the presence or
absence of floating and suspended materials, a sheen on the
surface, discolorations, turbidity, odors, and source(s) of any
observed pollutants.
g. Within two business days (48 hours) after each qualifying rain
event, Risk Level 2 dischargers shall conduct post rain event visual
observations (inspections) to (1) identify whether BMPs were
adequately designed, implemented, and effective, and (2) identify
additional BMPs and revise the SWPPP accordingly.
h. Risk Level 2 dischargers shall maintain on-site records of all visual
observations (inspections), personnel performing the observations,
observation dates, weather conditions, locations observed, and
corrective actions taken in response to the observations.
4. Risk Level 2 – Water Quality Sampling and Analysis
a. Risk Level 2 dischargers shall collect storm water grab samples
from sampling locations, as defined in Section I.5. The storm water
grab sample(s) obtained shall be representative of the flow and
characteristics of the discharge.
b. At minimum, Risk Level 2 dischargers shall collect 3 samples per
day of the qualifying event.
c. Risk Level 2 dischargers shall ensure that the grab samples
collected of stored or contained storm water are from discharges
subsequent to a qualifying rain event (producing precipitation of
½ inch or more at the time of discharge).
Storm Water Effluent Monitoring Requirements
d. Risk Level 2 dischargers shall analyze their effluent samples for:
i. pH and turbidity.
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ii. Any additional parameters for which monitoring is required by
the Regional Water Board.
5. Risk Level 2 – Storm Water Discharge Water Quality Sampling
Locations
Effluent Sampling Locations
a. Risk Level 2 dischargers shall perform sampling and analysis of
storm water discharges to characterize discharges associated with
construction activity from the entire project disturbed area.
b. Risk Level 2 dischargers shall collect effluent samples at all
discharge points where storm water is discharged off-site.
c. Risk Level 2 dischargers shall ensure that storm water discharge
collected and observed represent4 the effluent in each drainage
area based on visual observation of the water and upstream
conditions.
d. Risk Level 2 dischargers shall monitor and report site run-on from
surrounding areas if there is reason to believe run-on may
contribute to an exceedance of NALs or NELs.
e. Risk Level 2 dischargers who deploy an ATS on their site, or a
portion on their site, shall collect ATS effluent samples and
measurements from the discharge pipe or another location
representative of the nature of the discharge.
f. Risk Level 2 dischargers shall select analytical test methods from
the list provided in Table 3 below.
g. All storm water sample collection preservation and handling shall
be conducted in accordance with Section I.7 “Storm Water Sample
Collection and Handling Instructions” below.
6. Risk Level 2 – Visual Observation and Sample Collection
Exemptions
a. Risk Level 2 dischargers shall be prepared to collect samples and
conduct visual observation (inspections) until the minimum
requirements of Sections I.3 and I.4 above are completed. Risk
4 For example, if there has been concrete work recently in an area, or drywall scrap is exposed to the rain, a
pH sample shall be taken of drainage from the relevant work area. Similarly, if sediment laden water is
flowing through some parts of a silt fence, samples shall be taken of the sediment-laden water even if most
water flowing through the fence is clear.
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Level 2 dischargers are not required to physically collect samples
or conduct visual observation (inspections) under the following
conditions:
i. During dangerous weather conditions such as flooding and
electrical storms.
ii. Outside of scheduled site business hours.
b. If no required samples or visual observation (inspections) are
collected due to these exceptions, Risk Level 2 dischargers shall
include an explanation in their SWPPP and in the Annual Report
documenting why the sampling or visual observation (inspections)
were not conducted.
7. Risk Level 2 – Storm Water Sample Collection and Handling
Instructions
a. Risk Level 2 dischargers shall refer to Table 3 below for test
methods, detection limits, and reporting units.
b. Risk Level 2 dischargers shall ensure that testing laboratories will
receive samples within 48 hours of the physical sampling (unless
otherwise required by the laboratory), and shall use only the
sample containers provided by the laboratory to collect and store
samples.
c. Risk Level 2 dischargers shall designate and train personnel to
collect, maintain, and ship samples in accordance with the Surface
Water Ambient Monitoring Program’s (SWAMP) 2008 Quality
Assurance Program Plan (QAPrP).5
8. Risk Level 2 – Monitoring Methods
a. Risk Level 2 dischargers shall include a description of the following
items in the CSMP:
i. Visual observation locations, visual observation procedures, and
visual observation follow-up and tracking procedures.
ii. Sampling locations, and sample collection and handling
procedures. This shall include detailed procedures for sample
5 Additional information regarding SWAMP’s QAPrP and QAMP can be found at
http://www.waterboards.ca.gov/water_issues/programs/swamp/.
QAPrP:http://www.waterboards.ca.gov/water_issues/programs/swamp/docs/qapp/swamp_qapp_master090
108a.pdf.
QAMP: http://www.waterboards.ca.gov/water_issues/programs/swamp/qamp.shtml.
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ATTACHMENT D
collection, storage, preservation, and shipping to the testing lab
to assure that consistent quality control and quality assurance is
maintained. Dischargers shall attach to the monitoring program
an example Chain of Custody form used when handling and
shipping samples.
iii. Identification of the analytical methods and related method
detection limits (if applicable) for each parameter required in
Section I.4 above.
b. Risk Level 2 dischargers shall ensure that all sampling and sample
preservation are in accordance with the current edition of "Standard
Methods for the Examination of Water and Wastewater" (American
Public Health Association). All monitoring instruments and
equipment (including a discharger’s own field instruments for
measuring pH and turbidity) should be calibrated and maintained in
accordance with manufacturers' specifications to ensure accurate
measurements. Risk Level 2 dischargers shall ensure that all
laboratory analyses are conducted according to test procedures
under 40 CFR Part 136, unless other test procedures have been
specified in this General Permit or by the Regional Water Board.
With the exception of field analysis conducted by the discharger for
turbidity and pH, all analyses should be sent to and conducted at a
laboratory certified for such analyses by the State Department of
Health Services. Risk Level 2 dischargers shall conduct their own
field analysis of pH and may conduct their own field analysis of
turbidity if the discharger has sufficient capability (qualified and
trained employees, properly calibrated and maintained field
instruments, etc.) to adequately perform the field analysis.
9. Risk Level 2 – Analytical Methods
a. Risk Level 2 dischargers shall refer to Table 3 below for test
methods, detection limits, and reporting units.
b. pH: Risk Level 2 dischargers shall perform pH analysis on-site with
a calibrated pH meter or a pH test kit. Risk Level 2 dischargers
shall record pH monitoring results on paper and retain these
records in accordance with Section I.14, below.
c. Turbidity: Risk Level 2 dischargers shall perform turbidity analysis
using a calibrated turbidity meter (turbidimeter), either on-site or at
an accredited lab. Acceptable test methods include Standard
Method 2130 or USEPA Method 180.1. The results will be
recorded in the site log book in Nephelometric Turbidity Units
(NTU).
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ATTACHMENT D
10. Risk Level 2 - Non-Storm Water Discharge Monitoring
Requirements
a. Visual Monitoring Requirements:
i. Risk Level 2 dischargers shall visually observe (inspect) each
drainage area for the presence of (or indications of prior)
unauthorized and authorized non-storm water discharges and
their sources.
ii. Risk Level 2 dischargers shall conduct one visual observation
(inspection) quarterly in each of the following periods: January-
March, April-June, July-September, and October-December.
Visual observation (inspections) are only required during
daylight hours (sunrise to sunset).
iii. Risk Level 2 dischargers shall ensure that visual observations
(inspections) document the presence or evidence of any non-
storm water discharge (authorized or unauthorized), pollutant
characteristics (floating and suspended material, sheen,
discoloration, turbidity, odor, etc.), and source. Risk Level 2
dischargers shall maintain on-site records indicating the
personnel performing the visual observation (inspections), the
dates and approximate time each drainage area and non-storm
water discharge was observed, and the response taken to
eliminate unauthorized non-storm water discharges and to
reduce or prevent pollutants from contacting non-storm water
discharges.
b. Effluent Sampling Locations:
i. Risk Level 2 dischargers shall sample effluent at all discharge
points where non-storm water and/or authorized non-storm
water is discharged off-site.
ii. Risk Level 2 dischargers shall send all non-storm water sample
analyses to a laboratory certified for such analyses by the State
Department of Health Services.
iii. Risk Level 2 dischargers shall monitor and report run-on from
surrounding areas if there is reason to believe run-on may
contribute to an exceedance of NALs.
11. Risk Level 2 – Non-Visible Pollutant Monitoring Requirements
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ATTACHMENT D
a. Risk Level 2 dischargers shall collect one or more samples during
any breach, malfunction, leakage, or spill observed during a visual
inspection which could result in the discharge of pollutants to
surface waters that would not be visually detectable in storm water.
b. Risk Level 2 dischargers shall ensure that water samples are large
enough to characterize the site conditions.
c. Risk Level 2 dischargers shall collect samples at all discharge
locations that can be safely accessed.
d. Risk Level 2 dischargers shall collect samples during the first two
hours of discharge from rain events that occur during business
hours and which generate runoff.
e. Risk Level 2 dischargers shall analyze samples for all non-visible
pollutant parameters (if applicable) - parameters indicating the
presence of pollutants identified in the pollutant source assessment
required (Risk Level 2 dischargers shall modify their CSMPs to
address these additional parameters in accordance with any
updated SWPPP pollutant source assessment).
f. Risk Level 2 dischargers shall collect a sample of storm water that
has not come in contact with the disturbed soil or the materials
stored or used on-site (uncontaminated sample) for comparison
with the discharge sample.
g. Risk Level 2 dischargers shall compare the uncontaminated sample
to the samples of discharge using field analysis or through
laboratory analysis.6
h. Risk Level 2 dischargers shall keep all field /or analytical data in the
SWPPP document.
12. Risk Level 2 – Watershed Monitoring Option
Risk Level 2 dischargers who are part of a qualified regional
watershed-based monitoring program may be eligible for relief from the
requirements in Sections I.5. The Regional Water Board may approve
proposals to substitute an acceptable watershed-based monitoring
program by determining if the watershed-based monitoring program
6 For laboratory analysis, all sampling, sample preservation, and analyses must be conducted
according to test procedures under 40 CFR Part 136. Field discharge samples shall be collected
and analyzed according to the specifications of the manufacturer of the sampling devices
employed.
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ATTACHMENT D
will provide substantially similar monitoring information in evaluating
discharger compliance with the requirements of this General Permit.
13. Risk Level 2 – Particle Size Analysis for Project Risk Justification
Risk Level 2 dischargers justifying an alternative project risk shall
report a soil particle size analysis used to determine the RUSLE
K-Factor. ASTM D-422 (Standard Test Method for Particle-Size
Analysis of Soils), as revised, shall be used to determine the
percentages of sand, very fine sand, silt, and clay on the site.
14. Risk Level 2 – Records
Risk Level 2 dischargers shall retain records of all storm water
monitoring information and copies of all reports (including Annual
Reports) for a period of at least three years. Risk Level 2 dischargers
shall retain all records on-site while construction is ongoing. These
records include:
a. The date, place, time of facility inspections, sampling, visual
observation (inspections), and/or measurements, including
precipitation.
b. The individual(s) who performed the facility inspections, sampling,
visual observation (inspections), and or measurements.
c. The date and approximate time of analyses.
d. The individual(s) who performed the analyses.
e. A summary of all analytical results from the last three years, the
method detection limits and reporting units, the analytical
techniques or methods used, and the chain of custody forms.
f. Rain gauge readings from site inspections;
g. Quality assurance/quality control records and results.
h. Non-storm water discharge inspections and visual observation
(inspections) and storm water discharge visual observation records
(see Sections I.3 and I.10 above).
i. Visual observation and sample collection exception records (see
Section I.6 above).
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ATTACHMENT D
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j. The records of any corrective actions and follow-up activities that
resulted from analytical results, visual observation (inspections), or
inspections.
15. Risk Level 2 – NAL Exceedance Report
a. In the event that any effluent sample exceeds an applicable NAL,
Risk Level 2 dischargers shall electronically submit all storm event
sampling results to the State Water Board no later than 10 days
after the conclusion of the storm event. The Regional Boards have
the authority to require the submittal of an NAL Exceedance
Report.
b. Risk Level 2 dischargers shall certify each NAL Exceedance Report
in accordance with the Special Provisions for Construction Activity.
c. Risk Level 2 dischargers shall retain an electronic or paper copy of
each NAL Exceedance Report for a minimum of three years after
the date the annual report is filed.
d. Risk Level 2 dischargers shall include in the NAL Exceedance
Report:
i. The analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results
that are less than the method detection limit shall be reported as
“less than the method detection limit”).
ii. The date, place, time of sampling, visual observation
(inspections), and/or measurements, including precipitation.
iii. A description of the current BMPs associated with the effluent
sample that exceeded the NAL and the proposed corrective
actions taken.
ATTACHMENT D Table 3 – Risk Level 2 Test Methods, Detection Limits, Reporting Units and Applicable NALs/NELs Parameter Test Method / Protocol Discharge Type Min. Detection Limit Reporting Units Numeric Action Level pH Field test with calibrated portable instrument Risk Level 2 Discharges 0.2 pH units lower NAL = 6.5 upper NAL = 8.5 Risk Level 2 Discharges other than ATS 1 NTU 250 NTU Turbidity EPA 0180.1 and/or field test with calibrated portable instrument For ATS discharges 1 NTU N/A 2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010 20
ATTACHMENT E
ATTACHMENT E
RISK LEVEL 3 REQUIREMENTS
A. Effluent Standards
[These requirements are the same as those in the General Permit order.]
1. Narrative – Risk Level 3 dischargers shall comply with the narrative
effluent standards listed below:
a. Storm water discharges and authorized non-storm water
discharges regulated by this General Permit shall not contain a
hazardous substance equal to or in excess of reportable quantities
established in 40 C.F.R. §§ 117.3 and 302.4, unless a separate
NPDES Permit has been issued to regulate those discharges.
b. Dischargers shall minimize or prevent pollutants in storm water
discharges and authorized non-storm water discharges through the
use of controls, structures, and management practices that achieve
BAT for toxic and non-conventional pollutants and BCT for
conventional pollutants.
2. Numeric –Risk Level 3 dischargers are subject to a pH NAL of 6.5-8.5,
and a turbidity NAL of 250 NTU. In addition, Risk Level 3 dischargers
are subject to a pH NEL of 6.0-9.0 and a turbidity NEL of 500 NTU.
B. Good Site Management "Housekeeping"
1. Risk Level 3 dischargers shall implement good site management (i.e.,
"housekeeping") measures for construction materials that could
potentially be a threat to water quality if discharged. At a minimum,
Risk Level 3 dischargers shall implement the following good
housekeeping measures:
a. Conduct an inventory of the products used and/or expected to be
used and the end products that are produced and/or expected to be
produced. This does not include materials and equipment that are
designed to be outdoors and exposed to environmental conditions
(i.e. poles, equipment pads, cabinets, conductors, insulators,
bricks, etc.).
b. Cover and berm loose stockpiled construction materials that are not
actively being used (i.e. soil, spoils, aggregate, fly-ash, stucco,
hydrated lime, etc.).
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c. Store chemicals in watertight containers (with appropriate
secondary containment to prevent any spillage or leakage) or in a
storage shed (completely enclosed).
d. Minimize exposure of construction materials to precipitation. This
does not include materials and equipment that are designed to be
outdoors and exposed to environmental conditions (i.e. poles,
equipment pads, cabinets, conductors, insulators, bricks, etc.).
e. Implement BMPs to prevent the off-site tracking of loose
construction and landscape materials.
2. Risk Level 3 dischargers shall implement good housekeeping
measures for waste management, which, at a minimum, shall consist
of the following:
a. Prevent disposal of any rinse or wash waters or materials on
impervious or pervious site surfaces or into the storm drain system.
b. Ensure the containment of sanitation facilities (e.g., portable toilets)
to prevent discharges of pollutants to the storm water drainage
system or receiving water.
c. Clean or replace sanitation facilities and inspecting them regularly
for leaks and spills.
d. Cover waste disposal containers at the end of every business day
and during a rain event.
e. Prevent discharges from waste disposal containers to the storm
water drainage system or receiving water.
f. Contain and securely protecting stockpiled waste material from
wind and rain at all times unless actively being used.
g. Implement procedures that effectively address hazardous and non-
hazardous spills.
h. Develop a spill response and implementation element of the
SWPPP prior to commencement of construction activities. The
SWPPP shall require that:
i. Equipment and materials for cleanup of spills shall be available
on site and that spills and leaks shall be cleaned up immediately
and disposed of properly; and
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ATTACHMENT E
ii. Appropriate spill response personnel are assigned and trained.
i. Ensure the containment of concrete washout areas and other
washout areas that may contain additional pollutants so there is no
discharge into the underlying soil and onto the surrounding areas.
3. Risk Level 3 dischargers shall implement good housekeeping for
vehicle storage and maintenance, which, at a minimum, shall consist of
the following:
a. Prevent oil, grease, or fuel to leak in to the ground, storm drains or
surface waters.
b. Place all equipment or vehicles, which are to be fueled, maintained
and stored in a designated area fitted with appropriate BMPs.
c. Clean leaks immediately and disposing of leaked materials
properly.
4. Risk Level 3 dischargers shall implement good housekeeping for
landscape materials, which, at a minimum, shall consist of the
following:
a. Contain stockpiled materials such as mulches and topsoil when
they are not actively being used.
b. Contain fertilizers and other landscape materials when they are not
actively being used.
c. Discontinuing the application of any erodible landscape material
within 2 days before a forecasted rain event or during periods of
precipitation.
d. Applying erodible landscape material at quantities and application
rates according to manufacture recommendations or based on
written specifications by knowledgeable and experienced field
personnel.
e. Stacking erodible landscape material on pallets and covering or
storing such materials when not being used or applied.
5. Risk Level 3 dischargers shall conduct an assessment and create a list
of potential pollutant sources and identify any areas of the site where
additional BMPs are necessary to reduce or prevent pollutants in storm
water discharges and authorized non-storm water discharges. This
potential pollutant list shall be kept with the SWPPP and shall identify
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ATTACHMENT E
all non-visible pollutants which are known, or should be known, to
occur on the construction site. At a minimum, when developing BMPs,
Risk Level 3 dischargers shall do the following:
a. Consider the quantity, physical characteristics (e.g., liquid, powder,
solid), and locations of each potential pollutant source handled,
produced, stored, recycled, or disposed of at the site.
b. Consider the degree to which pollutants associated with those
materials may be exposed to and mobilized by contact with storm
water.
c. Consider the direct and indirect pathways that pollutants may be
exposed to storm water or authorized non-storm water discharges.
This shall include an assessment of past spills or leaks, non-storm
water discharges, and discharges from adjoining areas.
d. Ensure retention of sampling, visual observation, and inspection
records.
e. Ensure effectiveness of existing BMPs to reduce or prevent
pollutants in storm water discharges and authorized non-storm
water discharges.
6. Risk Level 3 dischargers shall implement good housekeeping
measures on the construction site to control the air deposition of site
materials and from site operations. Such particulates can include, but
are not limited to, sediment, nutrients, trash, metals, bacteria, oil and
grease and organics.
7. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
document all housekeeping BMPs in the SWPPP and REAP(s) in
accordance with the nature and phase of the construction project.
Construction phases at traditional land development projects include
Grading and Land Development Phase, Streets and Utilities, or
Vertical Construction for traditional land development projects.
C. Non-Storm Water Management
1. Risk Level 3 dischargers shall implement measures to control all non-
storm water discharges during construction.
2. Risk Level 3 dischargers shall wash vehicles in such a manner as to
prevent non-storm water discharges to surface waters or MS4
drainage systems.
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3. Risk Level 3 dischargers shall clean streets in such a manner as to
prevent unauthorized non-storm water discharges from reaching
surface water or MS4 drainage systems.
D. Erosion Control
1. Risk Level 3 dischargers shall implement effective wind erosion
control.
2. Risk Level 3 dischargers shall provide effective soil cover for inactive1
areas and all finished slopes, open space, utility backfill, and
completed lots.
3. Dischargers shall limit the use of plastic materials when more
sustainable, environmentally friendly alternatives exist. Where plastic
materials are deemed necessary, the discharger shall consider the use
of plastic materials resistant to solar degradation.
E. Sediment Controls
1. Risk Level 3 dischargers shall establish and maintain effective
perimeter controls and stabilize all construction entrances and exits to
sufficiently control erosion and sediment discharges from the site.
2. On sites where sediment basins are to be used, Risk Level 3
dischargers shall, at minimum, design sediment basins according to
the method provided in CASQA’s Construction BMP Guidance
Handbook.
3. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
implement appropriate erosion control BMPs (runoff control and soil
stabilization) in conjunction with sediment control BMPs for areas
under active2 construction.
4. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
apply linear sediment controls along the toe of the slope, face of the
slope, and at the grade breaks of exposed slopes to comply with sheet
flow lengths3 in accordance with Table 1.
1 Inactive areas of construction are areas of construction activity that have been disturbed and are not
scheduled to be re-disturbed for at least 14 days. 2 Active areas of construction are areas undergoing land surface disturbance. This includes construction
activity during the preliminary stage, mass grading stage, streets and utilities stage and the vertical
construction stage 3 Sheet flow length is the length that shallow, low velocity flow travels across a site.
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Table 1 - Critical Slope/Sheet Flow Length Combinations
Slope Percentage Sheet flow length not
to exceed
0-25% 20 feet
25-50% 15 feet
Over 50% 10 feet
5. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
ensure that construction activity traffic to and from the project is limited
to entrances and exits that employ effective controls to prevent offsite
tracking of sediment.
6. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
ensure that all storm drain inlets and perimeter controls, runoff control
BMPs, and pollutant controls at entrances and exits (e.g. tire washoff
locations) are maintained and protected from activities that reduce their
effectiveness.
7. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
inspect on a daily basis all immediate access roads daily. At a
minimum daily (when necessary) and prior to any rain event, the
discharger shall remove any sediment or other construction activity-
related materials that are deposited on the roads (by vacuuming or
sweeping).
8. Additional Risk Level 3 Requirement: The Regional Water Board
may require Risk Level 3 dischargers to implement additional site-
specific sediment control requirements if the implementation of the
other requirements in this section are not adequately protecting the
receiving waters.
F. Run-on and Run-off Controls
Risk Level 3 dischargers shall effectively manage all run-on, all runoff
within the site and all runoff that discharges off the site. Run-on from off
site shall be directed away from all disturbed areas or shall collectively be
in compliance with the effluent limitations in this General Permit.
G. Inspection, Maintenance and Repair
1. Risk Level 3 dischargers shall ensure that all inspection, maintenance
repair and sampling activities at the project location shall be performed
or supervised by a Qualified SWPPP Practitioner (QSP) representing
the discharger. The QSP may delegate any or all of these activities to
an employee appropriately trained to do the task(s).
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2. Risk Level 3 dischargers shall perform weekly inspections and
observations, and at least once each 24-hour period during extended
storm events, to identify and record BMPs that need maintenance to
operate effectively, that have failed, or that could fail to operate as
intended. Inspectors shall be the QSP or be trained by the QSP.
3. Upon identifying failures or other shortcomings, as directed by the
QSP, Risk Level 3 dischargers shall begin implementing repairs or
design changes to BMPs within 72 hours of identification and complete
the changes as soon as possible.
4. For each inspection required, Risk Level 3 dischargers shall complete
an inspection checklist, using a form provided by the State Water
Board or Regional Water Board or in an alternative format.
5. Risk Level 3 dischargers shall ensure that checklists shall remain
onsite with the SWPPP and at a minimum, shall include:
a. Inspection date and date the inspection report was written.
b. Weather information, including presence or absence of
precipitation, estimate of beginning of qualifying storm event,
duration of event, time elapsed since last storm, and approximate
amount of rainfall in inches.
c. Site information, including stage of construction, activities
completed, and approximate area of the site exposed.
d. A description of any BMPs evaluated and any deficiencies noted.
e. If the construction site is safely accessible during inclement
weather, list the observations of all BMPs: erosion controls,
sediment controls, chemical and waste controls, and non-storm
water controls. Otherwise, list the results of visual inspections at all
relevant outfalls, discharge points, downstream locations and any
projected maintenance activities.
f. Report the presence of noticeable odors or of any visible sheen on
the surface of any discharges.
g. Any corrective actions required, including any necessary changes
to the SWPPP and the associated implementation dates.
h. Photographs taken during the inspection, if any.
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i. Inspector’s name, title, and signature.
H. Rain Event Action Plan
1. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP develop a Rain Event Action Plan (REAP) 48 hours prior to any
likely precipitation event. A likely precipitation event is any weather
pattern that is forecast to have a 50% or greater probability of
producing precipitation in the project area. The QSP shall obtain a
printed copy of precipitation forecast information from the National
Weather Service Forecast Office (e.g., by entering the zip code of the
project’s location at http://www.srh.noaa.gov/forecast).
2. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP develop the REAPs for all phases of construction (i.e., Grading
and Land Development, Streets and Utilities, Vertical Construction,
Final Landscaping and Site Stabilization).
3. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP ensure that the REAP include, at a minimum, the following site
information:
a. Site Address.
b. Calculated Risk Level (2 or 3).
c. Site Storm Water Manager Information including the name,
company, and 24-hour emergency telephone number.
d. Erosion and Sediment Control Provider information including the
name, company, and 24-hour emergency telephone number.
e. Storm Water Sampling Agent information including the name,
company, and 24-hour emergency telephone number.
4. Additional Risk Level 3 Requirement: The QSP shall include in the
REAP, at a minimum, the following project phase information:
a. Activities associated with each construction phase.
b. Trades active on the construction site during each construction
phase.
c. Trade contractor information.
d. Suggested actions for each project phase.
5. Additional Risk Level 3 Requirement: The QSP shall develop
additional REAPs for project sites where construction activities are
indefinitely halted or postponed (Inactive Construction). At a minimum,
Inactive Construction REAPs must include:
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a. Site Address.
b. Calculated Risk Level (2 or 3).
c. Site Storm Water Manager Information including the name,
company, and 24-hour emergency telephone number.
d. Erosion and Sediment Control Provider information including the
name, company, and 24-hour emergency telephone number.
e. Storm Water Sampling Agent information including the name,
company, and 24-hour emergency telephone number.
f. Trades active on site during Inactive Construction.
g. Trade contractor information.
h. Suggested actions for inactive construction sites.
6. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP begin implementation and make the REAP available onsite no
later than 24 hours prior to the likely precipitation event.
7. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP maintain onsite a paper copy of each REAP onsite in compliance
with the record retention requirements of the Special Provisions in this
General Permit.
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I. Risk Level 3 Monitoring and Reporting Requirements
Table 2- Summary of Monitoring Requirements
Visual Inspections Sample Collection
Pre-storm
Event Risk
Level
Quarterly
Non-
storm
Water
Discharge
Baseline REAP
Daily
Storm
BMP
Post
Storm
Storm
Water
Discharge
Receiving
Water
3 X X X X X X X4
1. Construction Site Monitoring Program Requirements
a. Pursuant to Water Code Sections 13383 and 13267, all dischargers
subject to this General Permit shall develop and implement a
written site-specific Construction Site Monitoring Program (CSMP)
in accordance with the requirements of this Section. The CSMP
shall include all monitoring procedures and instructions, location
maps, forms, and checklists as required in this section. The CSMP
shall be developed prior to the commencement of construction
activities, and revised as necessary to reflect project revisions. The
CSMP shall be a part of the Storm Water Pollution Prevention Plan
(SWPPP), included as an appendix or separate SWPPP chapter.
b. Existing dischargers registered under the State Water Board Order
No. 99-08-DWQ shall make and implement necessary revisions to
their Monitoring Program to reflect the changes in this General
Permit in a timely manner, but no later than July 1, 2010. Existing
dischargers shall continue to implement their existing Monitoring
Program in compliance with State Water Board Order No. 99-08-
DWQ until the necessary revisions are completed according to the
schedule above.
c. When a change of ownership occurs for all or any portion of the
construction site prior to completion or final stabilization, the new
discharger shall comply with these requirements as of the date the
ownership change occurs.
2. Objectives
The CSMP shall be developed and implemented to address the
following objectives:
4 When NEL exceeded
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a. To demonstrate that the site is in compliance with the Discharge
Prohibitions and applicable Numeric Action Levels (NALs)/Numeric
Effluent Limitations (NELs) of this General Permit.
b. To determine whether non-visible pollutants are present at the
construction site and are causing or contributing to exceedances of
water quality objectives.
c. To determine whether immediate corrective actions, additional Best
Management Practice (BMP) implementation, or SWPPP revisions
are necessary to reduce pollutants in storm water discharges and
authorized non-storm water discharges.
d. To determine whether BMPs included in the SWPPP/Rain Event
Action Plan (REAP) are effective in preventing or reducing
pollutants in storm water discharges and authorized non-storm
water discharges.
3. Risk Level 3 – Visual Monitoring (Inspection) Requirements for
Qualifying Rain Events
a. Risk Level 3 dischargers shall visually observe (inspect) storm
water discharges at all discharge locations within two business
days (48 hours) after each qualifying rain event.
b. Risk Level 3 dischargers shall visually observe (inspect) the
discharge of stored or contained storm water that is derived from
and discharged subsequent to a qualifying rain event producing
precipitation of ½ inch or more at the time of discharge. Stored or
contained storm water that will likely discharge after operating
hours due to anticipated precipitation shall be observed prior to the
discharge during operating hours.
c. Risk Level 3 dischargers shall conduct visual observations
(inspections) during business hours only.
d. Risk Level 3 dischargers shall record the time, date and rain gauge
reading of all qualifying rain events.
e. Within 2 business days (48 hours) prior to each qualifying rain
event, Risk Level 3 dischargers shall visually observe (inspect):
i. all storm water drainage areas to identify any spills, leaks, or
uncontrolled pollutant sources. If needed, the discharger shall
implement appropriate corrective actions.
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ii. all BMPs to identify whether they have been properly
implemented in accordance with the SWPPP/REAP. If needed,
the discharger shall implement appropriate corrective actions.
iii. any storm water storage and containment areas to detect leaks
and ensure maintenance of adequate freeboard.
f. For the visual observations (inspections) described in c.i. and c.iii
above, Risk Level 3 dischargers shall observe the presence or
absence of floating and suspended materials, a sheen on the
surface, discolorations, turbidity, odors, and source(s) of any
observed pollutants.
g. Within two business days (48 hours) after each qualifying rain
event, Risk Level 3 dischargers shall conduct post rain event visual
observations (inspections) to (1) identify whether BMPs were
adequately designed, implemented, and effective, and (2) identify
additional BMPs and revise the SWPPP accordingly.
h. Risk Level 3 dischargers shall maintain on-site records of all visual
observations (inspections), personnel performing the observations,
observation dates, weather conditions, locations observed, and
corrective actions taken in response to the observations.
4. Risk Level 3 – Water Quality Sampling and Analysis
a. Risk Level 3 dischargers shall collect storm water grab samples
from sampling locations, as defined in Section I.5. The storm water
grab sample(s) obtained shall be representative of the flow and
characteristics of the discharge.
b. At minimum, Risk Level 3 dischargers shall collect 3 samples per
day of the qualifying event.
c. Risk Level 3 dischargers shall ensure that the grab samples
collected of stored or contained storm water are from discharges
subsequent to a qualifying rain event (producing precipitation of ½
inch or more at the time of discharge).
Storm Water Effluent Monitoring Requirements
d. Risk Level 3 dischargers shall analyze their effluent samples for:
i. pH and turbidity.
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ii. Any additional parameters for which monitoring is required by
the Regional Water Board.
e. Risk 3 dischargers shall electronically submit all storm event
sampling results to the State Water Board no later than 5 days after
the conclusion of the storm event.
f. Risk Level 3 discharger sites that have violated the turbidity daily
average NEL shall analyze subsequent effluent samples for all the
parameters specified in Section I.4.e, above, and Suspended
Sediment Concentration (SSC).
Receiving Water Monitoring Requirements
g. In the event that a Risk Level 3 discharger violates an NEL
contained in this General Permit and has a direct discharge into
receiving waters, the Risk Level 3 discharger shall subsequently
sample receiving waters (RWs) for all parameter(s) required in
Section I.4.e above for the duration of coverage under this General
Permit.
h. Risk Level 3 dischargers disturbing 30 acres or more of the
landscape and with direct discharges into receiving waters shall
conduct or participate in benthic macroinvertebrate bioassessment
of RWs prior to commencement of construction activity (See
Appendix 3).
i. Risk Level 3 dischargers shall obtain RW samples in accordance
with the Receiving Water sampling location section (Section I.5),
below.
5. Risk Level 3 – Storm Water Discharge Water Quality Sampling
Locations
Effluent Sampling Locations
a. Risk Level 3 dischargers shall perform sampling and analysis of
storm water discharges to characterize discharges associated with
construction activity from the entire project disturbed area.
b. Risk Level 3 dischargers shall collect effluent samples at all
discharge points where storm water is discharged off-site.
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c. Risk Level 3 dischargers shall ensure that storm water discharge
collected and observed represent5 the effluent in each drainage
area based on visual observation of the water and upstream
conditions.
d. Risk Level 3 dischargers shall monitor and report site run-on from
surrounding areas if there is reason to believe run-on may
contribute to an exceedance of NALs or NELs.
e. Risk Level 3 dischargers who deploy an ATS on their site, or a
portion on their site, shall collect ATS effluent samples and
measurements from the discharge pipe or another location
representative of the nature of the discharge.
f. Risk Level 3 dischargers shall select analytical test methods from
the list provided in Table 3 below.
g. All storm water sample collection preservation and handling shall
be conducted in accordance with Section I.7 “Storm Water Sample
Collection and Handling Instructions” below.
Receiving Water Sampling Locations
h. Upstream/up-gradient RW samples: Risk Level 3 dischargers
shall obtain any required upstream/up-gradient receiving water
samples from a representative and accessible location as close as
possible and upstream from the effluent discharge point.
i. Downstream/down-gradient RW samples: Risk Level 3
dischargers shall obtain any required downstream/down-gradient
receiving water samples from a representative and accessible
location as close as possible and downstream from the effluent
discharge point.
j. If two or more discharge locations discharge to the same receiving
water, Risk Level 3 dischargers may sample the receiving water at
a single upstream and downstream location.
5 For example, if there has been concrete work recently in an area, or drywall scrap is exposed to the rain, a
pH sample shall be taken of drainage from the relevant work area. Similarly, if sediment-laden water is
flowing through some parts of a silt fence, samples shall be taken of the sediment laden water even if most
water flowing through the fence is clear.
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6. Risk Level 3 – Visual Observation and Sample Collection
Exemptions
a. Risk Level 3 dischargers shall be prepared to collect samples and
conduct visual observation (inspections) until the minimum
requirements of Sections I.3 and I.4 above are completed. Risk
Level 3 dischargers are not required to physically collect samples
or conduct visual observation (inspections) under the following
conditions:
i. During dangerous weather conditions such as flooding and
electrical storms.
ii. Outside of scheduled site business hours.
b. If no required samples or visual observation (inspections) are
collected due to these exceptions, Risk Level 3 dischargers shall
include an explanation in their SWPPP and in the Annual Report
documenting why the sampling or visual observation (inspections)
were not conducted.
7. Risk Level 3 – Storm Water Sample Collection and Handling
Instructions
a. Risk Level 3 dischargers shall refer to Table 3 below for test
methods, detection limits, and reporting units.
b. Risk Level 3 dischargers shall ensure that testing laboratories will
receive samples within 48 hours of the physical sampling (unless
otherwise required by the laboratory), and shall use only the
sample containers provided by the laboratory to collect and store
samples.
c. Risk Level 3 dischargers shall designate and train personnel to
collect, maintain, and ship samples in accordance with the Surface
Water Ambient Monitoring Program’s (SWAMP) 2008 Quality
Assurance Program Plan (QAPrP).6
6 Additional information regarding SWAMP’s QAPrP and QAMP can be found at
http://www.waterboards.ca.gov/water_issues/programs/swamp/.
QAPrP:http://www.waterboards.ca.gov/water_issues/programs/swamp/docs/qapp/swamp_qapp_
master090108a.pdf
QAMP: http://www.waterboards.ca.gov/water_issues/programs/swamp/qamp.shtml
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8. Risk Level 3 – Monitoring Methods
a. Risk Level 3 dischargers shall include a description of the following
items in the CSMP:
i. Visual observation locations, visual observation procedures, and
visual observation follow-up and tracking procedures.
ii. Sampling locations, and sample collection and handling
procedures. This shall include detailed procedures for sample
collection, storage, preservation, and shipping to the testing lab
to assure that consistent quality control and quality assurance is
maintained. Dischargers shall attach to the monitoring program
an example Chain of Custody form used when handling and
shipping samples.
iii. Identification of the analytical methods and related method
detection limits (if applicable) for each parameter required in
Section I.4 above.
b. Risk Level 3 dischargers shall ensure that all sampling and sample
preservation are in accordance with the current edition of "Standard
Methods for the Examination of Water and Wastewater" (American
Public Health Association). All monitoring instruments and
equipment (including a discharger’s own field instruments for
measuring pH and turbidity) should be calibrated and maintained in
accordance with manufacturers' specifications to ensure accurate
measurements. Risk Level 3 dischargers shall ensure that all
laboratory analyses are conducted according to test procedures
under 40 CFR Part 136, unless other test procedures have been
specified in this General Permit or by the Regional Water Board.
With the exception of field analysis conducted by the discharger for
turbidity and pH, all analyses should be sent to and conducted at a
laboratory certified for such analyses by the State Department of
Health Services (SSC exception). Risk Level 3 dischargers shall
conduct their own field analysis of pH and may conduct their own
field analysis of turbidity if the discharger has sufficient capability
(qualified and trained employees, properly calibrated and
maintained field instruments, etc.) to adequately perform the field
analysis.
9. Risk Level 3 – Analytical Methods
a. Risk Level 3 dischargers shall refer to Table 3 below for test
methods, detection limits, and reporting units.
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b. pH: Risk Level 3 dischargers shall perform pH analysis on-site with
a calibrated pH meter or a pH test kit. Risk Level 3 dischargers
shall record pH monitoring results on paper and retain these
records in accordance with Section I.14, below.
c. Turbidity: Risk Level 3 dischargers shall perform turbidity analysis
using a calibrated turbidity meter (turbidimeter), either on-site or at
an accredited lab. Acceptable test methods include Standard
Method 2130 or USEPA Method 180.1. The results will be
recorded in the site log book in Nephelometric Turbidity Units
(NTU).
d. Suspended sediment concentration (SSC): Risk Level 3
dischargers shall perform SSC analysis using ASTM Method
D3977-97.
e. Bioassessment: Risk Level 3 dischargers shall perform
bioassessment sampling and analysis according to Appendix 3 of
this General Permit.
10. Risk Level 3 - Non-Storm Water Discharge Monitoring
Requirements
a. Visual Monitoring Requirements:
i. Risk Level 3 dischargers shall visually observe (inspect) each
drainage area for the presence of (or indications of prior)
unauthorized and authorized non-storm water discharges and
their sources.
ii. Risk Level 3 dischargers shall conduct one visual observation
(inspection) quarterly in each of the following periods: January-
March, April-June, July-September, and October-December.
Visual observation (inspections) are only required during
daylight hours (sunrise to sunset).
iii. Risk Level 3 dischargers shall ensure that visual observations
(inspections) document the presence or evidence of any non-
storm water discharge (authorized or unauthorized), pollutant
characteristics (floating and suspended material, sheen,
discoloration, turbidity, odor, etc.), and source. Risk Level 3
dischargers shall maintain on-site records indicating the
personnel performing the visual observation (inspections), the
dates and approximate time each drainage area and non-storm
water discharge was observed, and the response taken to
eliminate unauthorized non-storm water discharges and to
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reduce or prevent pollutants from contacting non-storm water
discharges.
b. Effluent Sampling Locations:
i. Risk Level 3 dischargers shall sample effluent at all discharge
points where non-storm water and/or authorized non-storm
water is discharged off-site.
ii. Risk Level 3 dischargers shall send all non-storm water sample
analyses to a laboratory certified for such analyses by the State
Department of Health Services.
iii. Risk Level 3 dischargers shall monitor and report run-on from
surrounding areas if there is reason to believe run-on may
contribute to an exceedance of NALs or NELs.
11. Risk Level 3 – Non-Visible Pollutant Monitoring Requirements
a. Risk Level 3 dischargers shall collect one or more samples during
any breach, malfunction, leakage, or spill observed during a visual
inspection which could result in the discharge of pollutants to
surface waters that would not be visually detectable in storm water.
b. Risk Level 3 dischargers shall ensure that water samples are large
enough to characterize the site conditions.
c. Risk Level 3 dischargers shall collect samples at all discharge
locations that can be safely accessed.
d. Risk Level 3 dischargers shall collect samples during the first two
hours of discharge from rain events that occur during business
hours and which generate runoff.
e. Risk Level 3 dischargers shall analyze samples for all non-visible
pollutant parameters (if applicable) - parameters indicating the
presence of pollutants identified in the pollutant source assessment
required (Risk Level 3 dischargers shall modify their CSMPs to
address these additional parameters in accordance with any
updated SWPPP pollutant source assessment).
f. Risk Level 3 dischargers shall collect a sample of storm water that
has not come in contact with the disturbed soil or the materials
stored or used on-site (uncontaminated sample) for comparison
with the discharge sample.
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g. Risk Level 3 dischargers shall compare the uncontaminated sample
to the samples of discharge using field analysis or through
laboratory analysis.7
h. Risk Level 3 dischargers shall keep all field /or analytical data in the
SWPPP document.
12. Risk Level 3 – Watershed Monitoring Option
Risk Level 3 dischargers who are part of a qualified regional
watershed-based monitoring program may be eligible for relief from the
requirements in Sections I.5. The Regional Water Board may approve
proposals to substitute an acceptable watershed-based monitoring
program by determining if the watershed-based monitoring program
will provide substantially similar monitoring information in evaluating
discharger compliance with the requirements of this General Permit.
13. Risk Level 3 – Particle Size Analysis for Project Risk Justification
Risk Level 3 dischargers justifying an alternative project risk shall
report a soil particle size analysis used to determine the RUSLE K-
Factor. ASTM D-422 (Standard Test Method for Particle-Size Analysis
of Soils), as revised, shall be used to determine the percentages of
sand, very fine sand, silt, and clay on the site.
14. Risk Level 3 – Records
Risk Level 3 dischargers shall retain records of all storm water
monitoring information and copies of all reports (including Annual
Reports) for a period of at least three years. Risk Level 3 dischargers
shall retain all records on-site while construction is ongoing. These
records include:
a. The date, place, time of facility inspections, sampling, visual
observation (inspections), and/or measurements, including
precipitation.
b. The individual(s) who performed the facility inspections, sampling,
visual observation (inspections), and or measurements.
c. The date and approximate time of analyses.
7 For laboratory analysis, all sampling, sample preservation, and analyses must be conducted
according to test procedures under 40 CFR Part 136. Field discharge samples shall be collected
and analyzed according to the specifications of the manufacturer of the sampling devices
employed.
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d. The individual(s) who performed the analyses.
e. A summary of all analytical results from the last three years, the
method detection limits and reporting units, the analytical
techniques or methods used, and the chain of custody forms.
f. Rain gauge readings from site inspections.
g. Quality assurance/quality control records and results.
h. Non-storm water discharge inspections and visual observation
(inspections) and storm water discharge visual observation records
(see Sections I.3 and I.10 above).
i. Visual observation and sample collection exception records (see
Section I.6 above).
j. The records of any corrective actions and follow-up activities that
resulted from analytical results, visual observation (inspections), or
inspections.
15. Risk Level 3 – NAL Exceedance Report
a. In the event that any effluent sample exceeds an applicable NAL,
Risk Level 3 dischargers shall electronically submit all storm event
sampling results to the State Water Board no later than 10 days
after the conclusion of the storm event. The Regional Boards have
the authority to require the submittal of an NAL Exceedance
Report.
b. Risk Level 3 dischargers shall certify each NAL Exceedance Report
in accordance with the Special Provisions for Construction Activity
In this General Permit.
c. Risk Level 3 dischargers shall retain an electronic or paper copy of
each NAL Exceedance Report for a minimum of three years after
the date the annual report is filed.
d. Risk Level 3 dischargers shall include in the NAL Exceedance
Report:
i. The analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results
that are less than the method detection limit shall be reported as
“less than the method detection limit”).
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
20
ATTACHMENT E
ii. The date, place, time of sampling, visual observation
(inspections), and/or measurements, including precipitation.
iii. A description of the current BMPs associated with the effluent
sample that exceeded the NAL and the proposed corrective
actions taken.
16. Risk Level 3 – NEL Violation Report
a. Risk Level 3 dischargers shall electronically submit all storm event
sampling results to the State Water Board no later than 5 days after
the conclusion of the storm event.
b. In the event that a discharger has violated an applicable NEL, Risk
Level 3 dischargers shall submit an NEL Violation Report to the
State Water Board within 24 hours after the NEL exceedance has
been identified.
c. Risk Level 3 dischargers shall certify each NEL Violation Report in
accordance with the Special Provisions for Construction Activity in
this General Permit.
d. Risk Level 3 dischargers shall retain an electronic or paper copy of
each NEL Violation Report for a minimum of three years after the
date the annual report is filed.
e. Risk Level 3 dischargers shall include in the NEL Violation Report:
i. The analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results
that are less than the method detection limit shall be reported as
“less than the method detection limit”);
ii. The date, place, time of sampling, visual observation
(inspections), and/or measurements, including precipitation; and
iii. A Description of the current onsite BMPs, and the proposed
corrective actions taken to manage the NEL exceedance.
f. Compliance Storm Exemption - In the event that an applicable NEL
has been exceeded during a storm event equal to or larger than the
Compliance Storm Event, Risk level 3 discharger shall report the
on-site rain gauge reading and nearby governmental rain gauge
readings for verification.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
21
ATTACHMENT E
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
22
17. Risk Level 3 – Bioassessment
a. Risk Level 3 dischargers with a total project-related ground
disturbance exceeding 30 acres shall:
i. Conduct bioassessment monitoring, as described in Appendix 3.
ii. Include the collection and reporting of specified in stream
biological data and physical habitat.
iii. Use the bioassessment sample collection and Quality
Assurance & Quality Control (QA/QC) protocols developed by
the State of California’s Surface Water Ambient Monitoring
Program (SWAMP).8
b. Risk Level 3 dischargers qualifying for bioassessment, where
construction commences out of an index period for the site location
shall:
i. Receive Regional Board approval for the sampling exception.
ii. Conduct bioassessment monitoring, as described in Appendix 3.
iii. Include the collection and reporting of specified instream
biological data and physical habitat.
iv. Use the bioassessment sample collection and Quality
Assurance & Quality Control (QA/QC) protocols developed by
the State of California’s Surface Water Ambient Monitoring
Program (SWAMP).
OR
v. Make a check payable to: Cal State Chico Foundation (SWAMP
Bank Account) or San Jose State Foundation (SWAMP Bank
Account) and include the WDID# on the check for the amount
calculated for the exempted project.
vi. Send a copy of the check to the Regional Water Board office for
the site’s region.
vii. Invest $7,500.00 X The number of samples required into the
SWAMP program as compensation (upon regional board
approval).
8 http://www.waterboards.ca.gov/water_issues/programs/swamp/.
ATTACHMENT E Table 3 – Risk Level 3 Test Methods, Detection Limits, Reporting Units and Applicable NALs/NELs Parameter Test Method / Protocol Discharge Type Min. Detection Limit Reporting Units Numeric Action Level Numeric Effluent Limitation pH Field test with calibrated portable instrument Risk Level 3 Discharges 0.2 pH units lower NAL = 6.5 upper NAL = 8.5 lower NEL = 6.0 upper NEL = 9.0 Risk Level 3 Discharges other than ATS 1 NTU 250 NTU 500 NTU Turbidity EPA 0180.1 and/or field test with calibrated portable instrument For ATS discharges 1 NTU N/A 10 NTU for Daily Weighted Average & 20 NTU for Any Single Sample SSC ASTM Method D 3977-979 Risk Level 3 (if NEL exceeded) 5 mg/L N/A N/A Bioassessment (STE) Level I of (SAFIT),10 fixed-count of 600 org/sample Risk Level 3 projects> 30 acres N/A N/A N/A N/A 9 ASTM, 1999, Standard Test Method for Determining Sediment Concentration in Water Samples: American Society of Testing and Materials, D 3977-97, Vol. 11.02, pp. 389-394. 10 The current SAFIT STEs (28 November 2006) list requirements for both the Level I and Level II taxonomic effort, and are located at: http://www.swrcb.ca.gov/swamp/docs/safit/ste_list.pdf. When new editions are published by SAFIT, they will supersede all previous editions. All editions will be posted at the State Water Board’s SWAMP website. 2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010 23
ATTACHMENT F
ATTACHMENT F:
Active Treatment System (ATS) Requirements
Table 1 – Numeric Effluent Limitations, Numeric Action Levels, Test Methods,
Detection Limits, and Reporting Units
Parameter Test
Method
Discharge
Type
Min.
Detection
Limit
Units Numeric
Action
Level
Numeric
Effluent
Limitation
Turbidity
EPA
0180.1
and/or field
test with a
calibrated
portable
instrument
For ATS
discharges 1 NTU N/A
10 NTU for
Daily Flow-
Weighted
Average
&
20 NTU for
Any Single
Sample
A. Dischargers choosing to implement an Active Treatment System (ATS) on their site
shall comply with all of the requirements in this Attachment.
B. The discharger shall maintain a paper copy of each ATS specification onsite in
compliance with the record retention requirements in the Special Provisions of this
General Permit.
C. ATS Design, Operation and Submittals
1. The ATS shall be designed and approved by a Certified Professional in Erosion
and Sediment Control (CPESC), a Certified Professional in Storm Water Quality
(CPSWQ); a California registered civil engineer; or any other California
registered engineer.
2. The discharger shall ensure that the ATS is designed in a manner to preclude the
accidental discharge of settled floc1 during floc pumping or related operations.
3. The discharger shall design outlets to dissipate energy from concentrated flows.
4. The discharger shall install and operate an ATS by assigning a lead person (or
project manager) who has either a minimum of five years construction storm
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1 Floc is defined as a clump of solids formed by the chemical action in ATS systems.
1
ATTACHMENT F
water experience or who is a licensed contractors specifically holding a California
Class A Contractors license.2
5. The discharger shall prepare an ATS Plan that combines the site-specific data
and treatment system information required to safely and efficiently operate an
ATS. The ATS Plan shall be electronically submitted to the State Water Board at
least 14 days prior to the planned operation of the ATS and a paper copy shall be
available onsite during ATS operation. At a minimum, the ATS Plan shall
include:
a. ATS Operation and Maintenance Manual for All Equipment.
b. ATS Monitoring, Sampling & Reporting Plan, including Quality
Assurance/Quality Control (QA/QC).
c. ATS Health and Safety Plan.
d. ATS Spill Prevention Plan.
6. The ATS shall be designed to capture and treat (within a 72-hour period) a
volume equivalent to the runoff from a 10-year, 24-hour storm event using a
watershed runoff coefficient of 1.0.
D. Treatment – Chemical Coagulation/Flocculation
1. Jar tests shall be conducted using water samples selected to represent typical
site conditions and in accordance with ASTM D2035-08 (2003).
2. The discharger shall conduct, at minimum, six site-specific jar tests (per polymer
with one test serving as a control) for each project to determine the proper
polymer and dosage levels for their ATS.
3. Single field jar tests may also be conducted during a project if conditions warrant,
for example if construction activities disturb changing types of soils, which
consequently cause change in storm water and runoff characteristics.
E. Residual Chemical and Toxicity Requirements
1. The discharger shall utilize a residual chemical test method that has a method
detection limit (MDL) of 10% or less than the maximum allowable threshold
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2 Business and Professions Code Division 3, Chapter 9, Article 4, Class A Contractor: A general engineering
contractor is a contractor whose principal contracting business is in connection with fixed works requiring specialized
engineering knowledge and skill. [http://www.cslb.ca.gov/General-Information/library/licensing-classifications.asp].
2
ATTACHMENT F
concentration3 (MATC) for the specific coagulant in use and for the most
sensitive species of the chemical used.
2. The discharger shall utilize a residual chemical test method that produces a
result within one hour of sampling.
3. The discharger shall have a California State certified laboratory validate the
selected residual chemical test. Specifically the lab will review the test protocol,
test parameters, and the detection limit of the coagulant. The discharger shall
electronically submit this documentation as part of the ATS Plan.
4. If the discharger cannot utilize a residual chemical test method that meets the
requirements above, the discharger shall operate the ATS in Batch Treatment4
mode.
5. A discharger planning to operate in Batch Treatment mode shall perform toxicity
testing in accordance with the following:
a. The discharger shall initiate acute toxicity testing on effluent samples
representing effluent from each batch prior to discharge5. All bioassays shall
be sent to a laboratory certified by the Department of Health Services (DHS)
Environmental Laboratory Accreditation Program (ELAP). The required field
of testing number for Whole Effluent Toxicity (WET) testing is E113.6
b. Acute toxicity tests shall be conducted with the following species and
protocols. The methods to be used in the acute toxicity testing shall be those
outlined for a 96-hour acute test in “Methods for Measuring the Acute Toxicity
of Effluents and Receiving Water to Freshwater and Marine Organisms,
USEPA-841-R-02-012” for Fathead minnow, Pimephales promelas (fathead
minnow). Acute toxicity for Oncorhynchus mykiss (Rainbow Trout) may be
used as a substitute for testing fathead minnows.
c. All toxicity tests shall meet quality assurance criteria and test acceptability
criteria in the most recent versions of the EPA test method for WET testing.
d. The discharger shall electronically report all acute toxicity testing.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3 The Maximum Allowable Threshold Concentration (MATC) is the allowable concentration of residual, or dissolved,
coagulant/flocculant in effluent. The MATC shall be coagulant/flocculant-specific, and based on toxicity testing
conducted by an independent, third-party laboratory. A typical MATC would be:
The MATC is equal to the geometric mean of the NOEC (No Observed Effect Concentration) and LOEC (Lowest
Observed Effect Concentration) Acute and Chronic toxicity results for most sensitive species determined for the
specific coagulant. The most sensitive species test shall be used to determine the MATC. 4 Batch Treatment mode is defined as holding or recirculating the treated water in a holding basin or tank(s) until
treatment is complete or the basin or storage tank(s) is full. 5 This requirement only requires that the test be initiated prior to discharge. 6 http://www.dhs.ca.gov/ps/ls/elap/pdf/FOT_Desc.pdf.
3
ATTACHMENT F
F. Filtration
1. The ATS shall include a filtration step between the coagulant treatment train and
the effluent discharge. This is commonly provided by sand, bag, or cartridge
filters, which are sized to capture suspended material that might pass through the
clarifier tanks.
2. Differential pressure measurements shall be taken to monitor filter loading and
confirm that the final filter stage is functioning properly.
G. Residuals Management
1. Sediment shall be removed from the storage or treatment cells as necessary to
ensure that the cells maintain their required water storage (i.e., volume)
capability.
2. Handling and disposal of all solids generated during ATS operations shall be
done in accordance with all local, state, and federal laws and regulations.
H. ATS Instrumentation
1. The ATS shall be equipped with instrumentation that automatically measures and
records effluent water quality data and flow rate.
2. The minimum data recorded shall be consistent with the Monitoring and
Reporting requirements below, and shall include:
a. Influent Turbidity
b. Effluent Turbidity
c. Influent pH
d. Effluent pH
e. Residual Chemical
f. Effluent Flow rate
g. Effluent Flow volume
3. Systems shall be equipped with a data recording system, such as data loggers or
webserver-based systems, which records each measurement on a frequency no
longer than once every 15 minutes.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
4
ATTACHMENT F
4. Cumulative flow volume shall be recorded daily. The data recording system shall
have the capacity to record a minimum of seven days continuous data.
5. Instrumentation systems shall be interfaced with system control to provide auto
shutoff or recirculation in the event that effluent measurements exceed turbidity
or pH.
6. The system shall also assure that upon system upset, power failure, or other
catastrophic event, the ATS will default to a recirculation mode or safe shut
down.
7. Instrumentation (flow meters, probes, valves, streaming current detectors,
controlling computers, etc.) shall be installed and maintained per manufacturer’s
recommendations, which shall be included in the QA/QC plan.
8. The QA/QC plan shall also specify calibration procedures and frequencies,
instrument method detection limit or sensitivity verification, laboratory duplicate
procedures, and other pertinent procedures.
9. The instrumentation system shall include a method for controlling coagulant
dose, to prevent potential overdosing. Available technologies include
flow/turbidity proportional metering, periodic jar testing and metering pump
adjustment, and ionic charge measurement controlling the metering pump.
I. ATS Effluent Discharge
1. ATS effluent shall comply with all provisions and prohibitions in this General
Permit, specifically the NELs.
2. NELs for discharges from an ATS:
a. Turbidity of all ATS discharges shall be less than 10 NTU for daily flow-
weighted average of all samples and 20 NTU for any single sample.
b. Residual Chemical shall be < 10% of MATC7 for the most sensitive species of
the chemical used.
3. If an analytical effluent sampling result is outside the range of pH NELs (i.e., is
below the lower NEL for pH or exceeds the upper NEL for pH) or exceeds the
turbidity NEL (as listed in Table 1), the discharger is in violation of this General
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
7 The Maximum Allowable Threshold Concentration (MATC) is the allowable concentration of residual, or dissolved,
coagulant/flocculant in effluent. The MATC shall be coagulant/flocculant-specific, and based on toxicity testing
conducted by an independent, third-party laboratory. The MATC is equal to the geometric mean of the NOEC (No
Observed Effect Concentration) and LOEC (Lowest Observed Effect Concentration) Acute and Chronic toxicity
results for most sensitive species determined for the specific coagulant. The most sensitive species test shall be
used to determine the MATC.
5
ATTACHMENT F
Permit and shall electronically file the results in violation within 24-hours of
obtaining the results.
4. If ATS effluent is authorized to discharge into a sanitary sewer system, the
discharger shall comply with any pre-treatment requirements applicable for that
system. The discharger shall include any specific criteria required by the
municipality in the ATS Plan.
5. Compliance Storm Event:
Discharges of storm water from ATS shall comply with applicable NELs (above)
unless the storm event causing the discharges is determined after the fact to be
equal to or larger than the Compliance Storm Event (expressed in inches of
rainfall). The Compliance Storm Event for ATS discharges is the 10 year, 24
hour storm, as determined using these maps:
http://www.wrcc.dri.edu/pcpnfreq/nca10y24.gif
http://www.wrcc.dri.edu/pcpnfreq/sca10y24.gif
This exemption is dependent on the submission of rain gauge data verifying the
storm event is equal to or larger than the Compliance Storm.
J. Operation and Maintenance Plan
1. Each Project shall have a site-specific Operation and Maintenance (O&M)
Manual covering the procedures required to install, operate and maintain the
ATS.8
2. The O&M Manual shall only be used in conjunction with appropriate project-
specific design specifications that describe the system configuration and
operating parameters.
3. The O&M Manual shall have operating manuals for specific pumps, generators,
control systems,and other equipment.
K. Sampling and Reporting Quality Assurance/ Quality Check (QA/QC) Plan
4. A project-specific QA/QC Plan shall be developed for each project. The QA/QC
Plan shall include at a minimum:
a. Calibration – Calibration methods and frequencies for all system and field
instruments shall be specified.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
8 The manual is typically in a modular format covering generalized procedures for each component that is utilized in a
particular system.
6
ATTACHMENT F
b. Method Detection Limits (MDLs) – The methods for determining MDLs shall
be specified for each residual coagulant measurement method. Acceptable
minimum MDLs for each method, specific to individual coagulants, shall be
specified.
c. Laboratory Duplicates – Requirements for monthly laboratory duplicates for
residual coagulant analysis shall be specified.
L. Personnel Training
1. Operators shall have training specific to using an ATS and liquid coagulants for
storm water discharges in California.
2. The training shall be in the form of a formal class with a certificate and
requirements for testing and certificate renewal.
3. Training shall include a minimum of eight hours classroom and 32 hours field
training. The course shall cover the following topics:
a. Coagulation Basics –Chemistry and physical processes
b. ATS System Design and Operating Principles
c. ATS Control Systems
d. Coagulant Selection – Jar testing, dose determination, etc.
e. Aquatic Safety/Toxicity of Coagulants, proper handling and safety
f. Monitoring, Sampling, and Analysis
g. Reporting and Recordkeeping
h. Emergency Response
M. Active Treatment System (ATS) Monitoring Requirements
Any discharger who deploys an ATS on their site shall conduct the following:
1. Visual Monitoring
a. A designated responsible person shall be on site daily at all times during
treatment operations.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
7
ATTACHMENT F
b. Daily on-site visual monitoring of the system for proper performance shall be
conducted and recorded in the project data log.
i. The log shall include the name and phone number of the person
responsible for system operation and monitoring.
ii. The log shall include documentation of the responsible person’s training.
2. Operational and Compliance Monitoring
a. Flow shall be continuously monitored and recorded at not greater than 15-
minute intervals for total volume treated and discharged.
b. Influent and effluent pH must be continuously monitored and recorded at not
greater than 15-minute intervals.
c. Influent and effluent turbidity (expressed in NTU) must be continuously
monitored and recorded at not greater than 15-minute intervals.
d. The type and amount of chemical used for pH adjustment, if any, shall be
monitored and recorded.
e. Dose rate of chemical used in the ATS system (expressed in mg/L) shall be
monitored and reported 15-minutes after startup and every 8 hours of
operation.
f. Laboratory duplicates – monthly laboratory duplicates for residual coagulant
analysis must be performed and records shall be maintained onsite.
g. Effluent shall be monitored and recorded for residual chemical/additive levels.
h. If a residual chemical/additive test does not exist and the ATS is operating in
a batch treatment mode of operation refer to the toxicity monitoring
requirements below.
3. Toxicity Monitoring
A discharger operating in batch treatment mode shall perform toxicity testing in
accordance with the following:
a. The discharger shall initiate acute toxicity testing on effluent samples
representing effluent from each batch prior to discharge.9 All bioassays shall
be sent to a laboratory certified by the Department of Health Services (DHS)
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
9 This requirement only requires that the test be initiated prior to discharge.
8
ATTACHMENT F
Environmental Laboratory Accreditation Program (ELAP). The required field
of testing number for Whole Effluent Toxicity (WET) testing is E113.10
b. Acute toxicity tests shall be conducted with the following species and
protocols. The methods to be used in the acute toxicity testing shall be those
outlined for a 96-hour acute test in “Methods for Measuring the Acute Toxicity
of Effluents and Receiving Water to Freshwater and Marine Organisms,
USEPA-841-R-02-012” for Fathead minnow, Pimephales promelas or
Rainbow trout Oncorhynchus mykiss may be used as a substitute for fathead
minnow.
c. All toxicity tests shall meet quality assurance criteria and test acceptability
criteria in the most recent versions of the EPA test method for WET testing.11
4. Reporting and Recordkeeping
At a minimum, every 30 days a LRP representing the discharger shall access the
State Water Boards Storm Water Mulit-Application and Report Tracking system
(SMARTS) and electronically upload field data from the ATS. Records must be
kept for three years after the project is completed .
5. Non-compliance Reporting
a. Any indications of toxicity or other violations of water quality objectives shall
be reported to the appropriate regulatory agency as required by this General
Permit.
b. Upon any measurements that exceed water quality standards, the system
operator shall immediately notify his supervisor or other responsible parties,
who shall notify the Regional Water Board.
c. If any monitoring data exceeds any applicable NEL in this General Permit, the
discharger shall electronically submit a NEL Violation Report to the State
Water Board within 24 hours after the NEL exceedance has been identified.
i. ATS dischargers shall certify each NEL Violation Report in accordance
with the Special Provisions for Construction Activity in this General Permit.
ii. ATS dischargers shall retain an electronic or paper copy of each NEL
Violation Report for a minimum of three years after the date the annual
report is filed.
iii. ATS dischargers shall include in the NEL Violation Report:
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
10 http://www.dhs.ca.gov/ps/ls/elap/pdf/FOT_Desc.pdf. 11 http://www.epa.gov/waterscience/methods/wet/.
9
ATTACHMENT F
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
10
(1) The analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results
that are less than the method detection limit shall be reported as
“less than the method detection limit”);
(2) The date, place, time of sampling, visual observation (inspections),
and/or measurements, including precipitation; and
(3) A description of the current onsite BMPs, and the proposed
corrective actions taken to manage the NEL exceedance.
iv. Compliance Storm Exemption - In the event that an applicable NEL has
been exceeded during a storm event equal to or larger than the
Compliance Storm Event, ATS dischargers shall report the on-site rain
gauge reading and nearby governmental rain gauge readings for
verification.
Appendix 1
2009-0009-DWQ 1 September 2, 2009
Risk Determination Worksheet
Step
1 Determine Sediment Risk via one of the options listed:
1. GIS Map Method - EPA Rainfall Erosivity Calculator &
GIS map
2. Individual Method - EPA Rainfall Erosivity Calculator &
Individual Data
Step
2
Determine Receiving Water Risk via one of the options
listed:
1. GIS map of Sediment Sensitive Watersheds provided
(in development)
2. List of Sediment Sensitive Watersheds provided
Step
3 Determine Combined Risk Level
Appendix 1
2009-0009-DWQ 2 September 2, 2009
Sediment Risk Factor Worksheet Entry
A) R Factor
Analyses of data indicated that when factors other than rainfall are held constant, soil loss is directly
proportional to a rainfall factor composed of total storm kinetic energy (E) times the maximum 30-min intensity
(I30) (Wischmeier and Smith, 1958). The numerical value of R is the average annual sum of EI30 for storm
events during a rainfall record of at least 22 years. "Isoerodent" maps were developed based on R values
calculated for more than 1000 locations in the Western U.S. Refer to the link below to determine the R factor for
the project site.
http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm
R Factor Value 0
B) K Factor (weighted average, by area, for all site soils)
The soil-erodibility factor K represents: (1) susceptibility of soil or surface material to erosion, (2) transportability
of the sediment, and (3) the amount and rate of runoff given a particular rainfall input, as measured under a
standard condition. Fine-textured soils that are high in clay have low K values (about 0.05 to 0.15) because the
particles are resistant to detachment. Coarse-textured soils, such as sandy soils, also have low K values (about
0.05 to 0.2) because of high infiltration resulting in low runoff even though these particles are easily detached.
Medium-textured soils, such as a silt loam, have moderate K values (about 0.25 to 0.45) because they are
moderately susceptible to particle detachment and they produce runoff at moderate rates. Soils having a high
silt content are especially susceptible to erosion and have high K values, which can exceed 0.45 and can be as
large as 0.65. Silt-size particles are easily detached and tend to crust, producing high rates and large volumes
of runoff. Use Site-specific data must be submitted.
Site-specific K factor guidance
K Factor Value 0
C) LS Factor (weighted average, by area, for all slopes)
The effect of topography on erosion is accounted for by the LS factor, which combines the effects of a hillslope-
length factor, L, and a hillslope-gradient factor, S. Generally speaking, as hillslope length and/or hillslope
gradient increase, soil loss increases. As hillslope length increases, total soil loss and soil loss per unit area
increase due to the progressive accumulation of runoff in the downslope direction. As the hillslope gradient
increases, the velocity and erosivity of runoff increases. Use the LS table located in separate tab of this
spreadsheet to determine LS factors. Estimate the weighted LS for the site prior to construction.
LS Table
LS Factor Value 0
Watershed Erosion Estimate (=RxKxLS) in tons/acre 0
Site Sediment Risk Factor
Low Sediment Risk: < 15 tons/acre
Medium Sediment Risk: >=15 and <75 tons/acre
High Sediment Risk: >= 75 tons/acre
Low
Appendix 1
2009-0009-DWQ 3 September 2, 2009
For the GIS Map Method, the R factor for the project is calculated using the online calculator at (see cell
to right). The product of K and LS are shown on the figure below. To determine soil loss in tons per acre,
multiply the R factor times the value for K times LS from the map.
http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm
Appendix 1
2009-0009-DWQ 4 September 2, 2009
Receiving Water (RW) Risk Factor Worksheet Entry Score
A. Watershed Characteristics yes/no
A.1. Does the disturbed area discharge (either directly or indirectly) to a 303(d)-listed
waterbody impaired by sediment? (For help with impaired waterbodies please
check the attached worksheet or visit the link below) or has a USEPA approved
TMDL implementation plan for sediment?:
2006 Approved Sediment-impared WBs Worksheet
http://www.waterboards.ca.gov/water_issues/programs/tmdl/303d_lists2006_epa.shtml
OR
A.2. Does the disturbed area discharge to a waterbody with designated beneficial uses
of SPAWN & COLD & MIGRATORY?
http://www.ice.ucdavis.edu/geowbs/asp/wbquse.asp
Yes High
Appendix 1
2009-0009-DWQ 5 September 2, 2009
Combined Risk Level Matrix
Sediment Risk
Low Medium High
Low Level 1 Level 2 Receiving Water Risk High Level 2 Level 3
Project Sediment Risk:Low 1
Project RW Risk:High 2
Project Combined Risk:Level 2
Appendix 1
2009-0009-DWQ 6 September 2, 2009
Soil Erodibility Factor (K)
The K factor can be determined by using the nomograph method, which requires that a
particle size analysis (ASTM D-422) be done to determine the percentages of sand,
very fine sand, silt and clay. Use the figure below to determine appropriate K value.
Erickson triangular nomograph used to estimate soil erodibility (K) factor.
The figure above is the USDA nomograph used to determine the K factor for a soil, based on its
texture (% silt plus very fine sand, % sand, % organic matter, soil structure, and permeability).
Nomograph from Erickson 1977 as referenced in Goldman et. al., 1986.
Appendix 1
2009-0009-DWQ 7 September 2, 2009
Average Watershed Slope (%)
Sheet
Flow
Length
(ft) 0.2 0.5 1.0 2.0 3.0 4.0 5.0 6.0 8.0 10.0 12.0 14.0 16.0 20.0
<3 0.05 0.07 0.09 0.13 0.17 0.20 0.23 0.26 0.32 0.35 0.36 0.38 0.39 0.41
6 0.05 0.07 0.09 0.13 0.17 0.20 0.23 0.26 0.32 0.37 0.41 0.45 0.49 0.56
9 0.05 0.07 0.09 0.13 0.17 0.20 0.23 0.26 0.32 0.38 0.45 0.51 0.56 0.67
12 0.05 0.07 0.09 0.13 0.17 0.20 0.23 0.26 0.32 0.39 0.47 0.55 0.62 0.76
15 0.05 0.07 0.09 0.13 0.17 0.20 0.23 0.26 0.32 0.40 0.49 0.58 0.67 0.84
25 0.05 0.07 0.10 0.16 0.21 0.26 0.31 0.36 0.45 0.57 0.71 0.85 0.98 1.24
50 0.05 0.08 0.13 0.21 0.30 0.38 0.46 0.54 0.70 0.91 1.15 1.40 1.64 2.10
75 0.05 0.08 0.14 0.25 0.36 0.47 0.58 0.69 0.91 1.20 1.54 1.87 2.21 2.86
100 0.05 0.09 0.15 0.28 0.41 0.55 0.68 0.82 1.10 1.46 1.88 2.31 2.73 3.57
150 0.05 0.09 0.17 0.33 0.50 0.68 0.86 1.05 1.43 1.92 2.51 3.09 3.68 4.85
200 0.06 0.10 0.18 0.37 0.57 0.79 1.02 1.25 1.72 2.34 3.07 3.81 4.56 6.04
250 0.06 0.10 0.19 0.40 0.64 0.89 1.16 1.43 1.99 2.72 3.60 4.48 5.37 7.16
300 0.06 0.10 0.20 0.43 0.69 0.98 1.28 1.60 2.24 3.09 4.09 5.11 6.15 8.23 1
400 0.06 0.11 0.22 0.48 0.80 1.14 1.51 1.90 2.70 3.75 5.01 6.30 7.60 10.24 1
600 0.06 0.12 0.24 0.56 0.96 1.42 1.91 2.43 3.52 4.95 6.67 8.45 10.26 13.94 1
800 0.06 0.12 0.26 0.63 1.10 1.65 2.25 2.89 4.24 6.03 8.17 10.40 12.69 17.35 2
1000 0.06 0.13 0.27 0.69 1.23 1.86 2.55 3.30 4.91 7.02 9.57 12.23 14.96 20.57 2
LS Factors for Construction Sites. Table from
Renard et. al., 1997.
APPENDIX 2
APPENDIX 2:
Post-Construction Water Balance Performance Standard
Spreadsheet
The discharger shall submit with their Notice of Intent (NOI) the following
information to demonstrate compliance with the New and Re-Development Water
Balance Performance Standard.
Map Instructions
The discharger must submit a small-scale topographic map of the site to show
the existing contour elevations, pre- and post-construction drainage divides, and
the total length of stream in each watershed area. Recommended scales include
1 in. = 20 ft., 1 in. = 30 ft., 1 in. = 40 ft., or 1 in = 50 ft. The suggested contour
interval is usually 1 to 5 feet, depending upon the slope of the terrain. The
contour interval may be increased on steep slopes. Other contour intervals and
scales may be appropriate given the magnitude of land disturbance.
Spreadsheet Instructions
The intent of the spreadsheet is to help dischargers calculate the project-related
increase in runoff volume and select impervious area and runoff reduction credits
to reduce the project-related increase in runoff volume to pre-project levels.
The discharger has the option of using the spreadsheet (Appendix 2.1) or a
more sophisticated, watershed process-based model (e.g. Storm Water
Management Model, Hydrological Simulation Program Fortran) to determine the
project-related increase in runoff volume.
In Appendix 4.1, you must complete the worksheet for each land use/soil
type combination for each project sub-watershed.
Steps 1 through 9 pertain specifically to the Runoff Volume Calculator:
Step 1: Enter the county where the project is located in cell H3.
Step 2: Enter the soil type in cell H6.
Step 3: Enter the existing pervious (dominant) land use type in cell H7.
Step 4: Enter the proposed pervious (dominant) land use type in cell H8.
Step 5: Enter the total project site area in cell H11 or J11.
Step 6: Enter the sub-watershed area in cell H12 or J12.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
APPENDIX 2
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
Step 7: Enter the existing rooftop area in cell H17 or J17, the existing non-
rooftop impervious area in cell H18 or J18, the proposed rooftop area in
cell H19 or J19, and the proposed non-rooftop impervious area in cell
H20 or J20
Step 8: Work through each of the impervious area reduction credits and claim
credits where applicable. Volume that cannot be addressed using non-
structural practices must be captured in structural practices and
approved by the Regional Water Board.
Step 9: Work through each of the impervious volume reduction credits and
claim credits where applicable. Volume that cannot be addressed
using non-structural practices must be captured in structural practices
and approved by the Regional Water Board.
Non-structural Practices Available for Crediting
• Porous Pavement
• Tree Planting
• Downspout Disconnection
• Impervious Area Disconnection
• Green Roof
• Stream Buffer
• Vegetated Swales
• Rain Barrels and Cisterns
• Landscaping Soil Quality
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
AB C D E F G H I J K L M N
(Step 1a) If you know the 85th percentile storm event for your location enter it in the box below
(Step 1b) If you can not answer 1a then
select the county where the project is
located (click on the cell to the right for drop-down): This will determine the average 85th percentile 24 hr. storm event for your site, which will appear under
precipitation to left.
(Step 1c) If you would like a more percise
value select the location closest to your
site. If you do not recgonize any of these
locations, leave this drop-down menu at location. The average value for the County will be used.
Project Name:(Step 2) Indicate the Soil Type (dropdown menu to right):
Waste Discharge Identification
(WDID):
(Step 3) Indicate the existing dominant
non-built land Use Type (dropdown menu
to right):
Date:(Step 4) Indicate the proposed dominant non-built land Use Type (dropdown menu
to right):
Sub Drainage Area Name (from map):Acres
82 (Step 5) Total Project Site Area:5.00
74 (Step 6) Sub-watershed Area:5.00
Percent of total project :Based on the County you indicated
above, we have included the 85
percentile average 24 hr event - P85 (in)^ for your area.
in
The Amount of rainfall needed for
runoff to occur (Existing runoff curve
number -P from existing RCN (in)^)
In
(Step 7) Sub-watershed Conditions
P used for calculations (in) (the greater of the above two criteria)In Sub-watershed Area (acres)Acres
^Available at www.cabmphandbooks.com Existing Rooftop Impervious Coverage 0
Existing Non-Rooftop Impervious Coverage 0
Proposed Rooftop Impervious Coverage 0
Proposed Non-Rooftop Impervious
Coverage 0
(p)p
Credits
Porous Pavement
Tree Planting
Pre-Project Runoff Volume (cu ft) Cu.Ft.Downspout Disconnection
Project-Related Runoff Volume
Increase w/o credits (cu ft)Cu.Ft.
Impervious Area DisconnectionGreen Roof
Stream Buffer
Vegetated Swales
Subtotal
Subtotal Runoff Volume Reduction Credit
(Step 9) Impervious Volume Reduction Credits
Rain Barrels/Cisterns
Soil Quality Cu. Ft.
Subtotal Runoff Volume Reduction
Total Runoff Volume Reduction Credit
247
Proposed Development Pervious Runoff Curve Number
0.62
0.62
Optional
Runoff Curve Numbers
Complete Either
Lawn, Grass, or Pasture covering more than 75% of the open space
Existing Pervious Runoff Curve Number
Complete EitherOptional
Optional
Calculated Acres
Optional
You have achieved your minimum requirements
Project-Related Volume Increase
with Credits (cu ft)0
Design Storm
0
0.44
0
Post-Construction Water Balance Calculator
100%
Acres
5.00
5.00
Wood & Grass: <50% ground cover
User may make changes from any cell
that is orange or brown in color (similar to the cells to the immediate right). Cells in green are calculated for you.
Project Information
SACRAMENTO
0.00
Cu. Ft.
Cu.Ft.
Cu. Ft.
0
0
0
00.00
0
0
0.00
0.00
Cu. Ft.
Volume (cubic feet)
0.00
0.00
0.00
0
0.00
0
0.00
Square FeetAcres
0
SACRAMENTO FAA ARPT
Low infiltration. Sandy clay loam.
Infiltration rate 0.05 to 0.15 inch/hr
when wet.
Runoff Calculations
5.00Sq Ft
Sq Ft
Group C
Soils
Cu. Ft.
0.00
0.00
0.00 0
0
0
Porous Pavement Credit Worksheet
Please fill out a porous pavement credit worksheet for each project sub-watershed.
For the PROPOSED Development:
Proposed Porous Pavement Runoff Reduction*In SqFt.In Acres Equivalent Acres
Area of Brick without Grout on less than 12 inches of base with at least 20% void
space over soil 0.45 0.00
Area of Brick without Grout on more than 12 inches of base with at least 20% void
space over soil 0.90 0.00Area of Cobbles less than 12 inches deep and over soil 0.30 0.00
Area of Cobbles less than 12 inches deep and over soil 0.60 0.00
Area of Reinforced Grass Pavement on less than 12 inches of base with at least 20%
void space over soil 0.45 0.00
Area of Reinforced Grass Pavement on at least 12 inches of base with at least 20%
void space over soil 0.90 0.00
Area of Porous Gravel Pavement on less than 12 inches of base with at least 20%
void space over soil 0.38 0.00
Area of Porous Gravel Pavement on at least 12 inches of base with at least 20% void space over soil 0.75 0.00
Area of Poured Porous Concrete or Asphalt Pavement with less than 4 inches of
gravel base (washed stone) 0.40 0.00
Area of Poured Porous Concrete or Asphalt Pavement with 4 to 8 inches of gravel
base (washed stone) 0.60 0.00
Area of Poured Porous Concrete or Asphalt Pavement with 8 to 12 inches of gravel
base (washed stone) 0.80 0.00
Area of Poured Porous Concrete or Asphalt Pavement with 12 or more inches of
gravel base (washed stone) 1.00 0.00
*=1-Rv**Return to Calculator
**Using Site Design Techniques to meet Development Standards for Stormwater Quality (BASMAA 2003)**NCDENR Stormwater BMP Manual (2007)
Fill in either Acres or SqFt
Tree Planting Credit Worksheet
Tree Canopy Credit Criteria
Number of Trees
Planted Credit (acres)
0 0.00
0.00
Square feet Under
Canopy
0.00
0.00 0
Return to Calculator
* credit amount based on credits from Stormwater Quality Design Manual for the Sacramento and South Placer Regions
Please fill out a tree canopy credit worksheet for each project sub-watershed.
Number of proposed evergreen trees to be planted (credit = number of trees x 0.005)*
Number of proposed deciduous trees to be planted (credit = number of trees x 0.0025)*
Square feet under an existing tree canopy, that will remain on the property, with an average
diameter at 4.5 ft above grade (i.e., diameter at breast height or DBH) is LESS than 12 in
diameter.
Please describe below how the project will ensure that these trees will be maintained.
Square feet under an existing tree canopy that will remain on the property, with an average
diameter at 4.5 ft above grade (i.e., diameter at breast height or DBH) is 12 in diameter or
GREATER.
Downspout Disconnection Credit Worksheet
Percentage of existing 0.00 Acres
The Stream Buffer and/or Vegetated Swale credits will not be taken in this sub-watershed area?
Please fill out a downspout disconnection credit worksheet for each project subwatershed. If you
answer yes to all questions, all rooftop area draining to each downspout will be subtracted from
your proposed rooftop impervious coverage.
Is the roof runoff from the design storm event fully contained in a raised bed or planter box or does
it drain as sheet flow to a landscaped area large enough to contain the roof runoff from the design
storm event?
Downspout Disconnection Credit Criteria
Do downspouts and any extensions extend at least six feet from a basement and two feet from a
crawl space or concrete slab?
Is the area of rooftop connecting to each disconnected downspout 600 square feet or less?
of rooftop surface has disconnected
downspouts
of rooftop surface has disconnected 50
Yes
Yes
Yes
No
No
No
Yes No
Percentage of the proposed 0.00 Acres
p
downspouts 50
Return to Calculator
Yes
Yes
Yes
No
No
No
Yes No
Impervious Area Disconnection Credit Worksheet
Response
Percentage of existing 0.00 AcresPercentage of the
proposed 0.00 Acres 70
Return to Calculator
The Stream Buffer credit will not be taken in this sub-watershed area?
non-rooftop surface area disconnected
non-rooftop surface area disconnected
Please fill out an impervious area disconnection credit worksheet for each project sub-watershed. If you answer
yes to all questions, all non-rooftop impervious surface area will be subtracted from your proposed non-rooftop
impervious coverage.
Non-Rooftop Disconnection Credit Criteria
Is the maximum contributing impervious flow path length less than 75 feet or, if equal or
greater than 75 feet, is a storage device (e.g. French drain, bioretention area, gravel
trench) implemented to achieve the required disconnection length?
Is the impervious area to any one discharge location less than 5,000 square feet?
Yes No
Yes No
Yes No
Green Roof Credit Worksheet
Please fill out a greenroof credit worksheet for each project sub-watershed. If you answer yes to all
questions, 70% of the greenroof area will be subtracted from your proposed rooftop impervious coverage.
Green Roof Credit Criteria
Response
Is the roof slope less than 15% or does it have a grid to hold the substrate in
place until it forms a thick vegetation mat?
Has a professional engineer assessed the necessary load reserves and
designed a roof structure to meet state and local codes?
Is the irrigation needed for plant establishment and/or to sustain the green roof
during extended dry periods, is the source from stored, recycled, reclaimed, or
reused water?
Percentage of
existing
0.0
0 Acres rooftop surface area in greenroof
Percentage of the
proposed
0.0
0 Acres rooftop surface area in greenroof
Return to Calculator
Stream Buffer Credit Worksheet
Please fill out a stream buffer credit worksheet for each project sub-watershed. If you answer yes to all
questions, you may subtract all impervious surface draining to each stream buffer that has not been
addressed using the Downspout and/or Impervious Area Disconnection credits.
Stream Buffer Credit Criteria
Response
Does runoff enter the floodprone width* or within 500 feet (whichever is
larger) of a stream channel as sheet flow**?
Is the contributing overland slope 5% or less, or if greater than 5%, is a
level spreader used?
Is the buffer area protected from vehicle or other traffic barriers to reduce
compaction?
Will the stream buffer be maintained in an ungraded and uncompacted
condition and will the vegetation be maintained in a natural condition?
Percentage of
existing 0.00 Acres
impervious surface area draining
into a stream buffer:
Percentage of the
proposed 0.00 Acres
impervious surface area that will
drain into a stream buffer:
Please describe below how the project will ensure that the buffer areas
will remain in ungraded and uncompacted condition and that the
vegetation will be maintained in a natural condition.
Return to Calculator
* floodprone width is the width at twice the bankfull depth.
** the maximum contributing length shall be 75 feet for impervious area
Vegetated Swale Credit Worksheet
Percentage of existing 0.00 Acres
Percentage of the proposed 0.00 Acres
Return to Calculator
Please fill out a vegetated swale worksheet for each project subwatershed. If you answer yes to all
questions, you may subtract all impervious surface draining to each stream buffer that has not been
addressed using the Downspout Disconnection credit.
Vegetated Swale Credit Criteria
Have all vegetated swales been designed in accordance with Treatment Control BMP 30 (TC-30 -
Vegetated Swale) from the California Stormwater BMP Handbook, New Development and
Redevelopment (available at www.cabmphandbooks.com)?
Is the maximum flow velocity for runoff from the design storm event less than or equal to 1.0 foot
per second?
of impervious area draining to a vegetated swale
of impervious area draining to a vegetated swale
Yes No
Yes No
Rain Barrel/Cistern Credit Worksheet
Rain Barrel/Cistern Credit Criteria Response
Total number of rain barrel(s)/cisterns
Average capacity of rain barrel(s)/cistern(s) (in gallons)
Total capacity rain barrel(s)/cistern(s) (in cu ft) 1 0
1 accounts for 10% loss Return to Calculator
Please fill out a rain barrel/cistern worksheet for each project sub-watershed.
Response
1.3
Sandy loams, loams
12
2.97
Return to Calculator
Table 1
Sands, loamy sands <1 6 Porosity (%)50 94%
Will the landscaped area be lined with an impervious membrane?
What is the average depth of your landscaped soil media meeting the above criteria (inches)?
What is the total area of the landscaped areas meeting the above criteria (in acres)?
Please fill out a soil quality worksheet for each project sub-watershed.
Will the soils used for landscaping meet the ideal bulk densities listed in Table 1 below?1
If you answered yes to the question above, but you do not know the exact bulk density, which
of the soil types in the drop down menu to the right best describes the top 12 inches for soils
used for landscaping (in g/cm3).
If you answered yes to the question above, and you know the area-weighted bulk density
within the top 12 inches for soils used for landscaping (in g/cm 3)* , fill in the cell to the right and
skip to cell G11. If not select from the drop-down menu in G10.
Yes No
Sands, loamy sands <1.6 Porosity (%) 50.94%
Sandy loams, loams <1.4
Sandy clay loams, loams, clay loams <1.4
Silts, silt loams <1.3
Silt loams, silty clay loams <1.1
Sandy clays, silty clays, some clay
loams (35-45% clay)<1.1
Clays (>45% clay)<1.1
http://soils.usda.gov/sqi/management/files/sq_utn_2.pdf
* To determine how to calculate density see:
http://www.globe.gov/tctg/bulkden.pdf?sectionID=94
1 USDA NRCS. "Soil Quality Urban Technical Note
No.2-Urban Soil Compaction". March 2000.
Mineral grains in many soils are mainly quartz and
feldspar, so 2.65 a good average for particle
density. To determine percent porosity, use the
formula: Porosity (%) = (1-Bulk Density/2.65) X
100
Yes No
APPENDIX 3
APPENDIX 3
Bioassessment Monitoring Guidelines
Bioassessment monitoring is required for projects that meet all of the following
criteria:
1. The project is rated Risk Level 3 or LUP Type 3
2. The project directly discharges runoff to a freshwater wadeable stream (or
streams) that is either: (a) listed by the State Water Board or USEPA as
impaired due to sediment, and/or (b) tributary to any downstream water
body that is listed for sediment; and/or have the beneficial use SPAWN &
COLD & MIGRATORY
3. Total project-related ground disturbance exceeds 30 acres.
For all such projects, the discharger shall conduct bioassessment monitoring, as
described in this section, to assess the effect of the project on the biological
integrity of receiving waters.
Bioassessment shall include:
1. The collection and reporting of specified instream biological data
2. The collection and reporting of specified instream physical habitat data
Bioassessment Exception
If a site qualifies for bioassessment, but construction commences out of an index
period for the site location, the discharger shall:
1. Receive Regional Water Board approval for the sampling exception
2. Make a check payable to: Cal State Chico Foundation (SWAMP Bank
Account) or San Jose State Foundation (SWAMP Bank Account) and
include the WDID# on the check for the amount calculated for the
exempted project.
3. Send a copy of the check to the Regional Water Board office for the site’s
region
4. Invest 7,500.00 X The number of samples required into the SWAMP
program as compensation (upon Regional Water Board approval).
5. Conduct bioassessment monitoring, as described in Appendix 4
6. Include the collection and reporting of specified instream biological data
and physical habitat
7. Use the bioassessment sample collection and Quality Assurance &
Quality Control (QA/QC) protocols developed by the State of California’s
Surface Water Ambient Monitoring Program (SWAMP)
Site Locations and Frequency
Macroinvertebrate samples shall be collected both before ground disturbance is
initiated and after the project is completed. The “after” sample(s) shall be
collected after at least one winter season resulting in surface runoff has
transpired after project-related ground disturbance has ceased. “Before” and
“after” samples shall be collected both upstream and downstream of the project’s
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
discharge. Upstream samples should be taken immediately before the sites
outfall and downstream samples should be taken immediately after the outfall
(when safe to collect the samples). Samples should be collected for each
freshwater wadeable stream that is listed as impaired due to sediment, or
tributary to a water body that is listed for sediment. Habitat assessment data shall
be collected concurrently with all required macroinvertebrate samples.
Index Period (Timing of Sample Collection)
Macroinvertebrate sampling shall be conducted during the time of year (i.e., the
“index period”) most appropriate for bioassessment sampling, depending on
ecoregion. This map is posted on the State Water Board’s Website:
http://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.s
html
Field Methods for Macroinvertebrate Collections
In collecting macroinvertebrate samples, the discharger shall use the “Reachwide
Benthos (Multi-habitat) Procedure” specified in Standard Operating Procedures
for Collecting Benthic Macroinvertebrate Samples and Associated Physical and
Chemical Data for Ambient Bioassessments in California (Ode 2007).1
Physical - Habitat Assessment Methods
The discharger shall conduct, concurrently with all required macroinvertebrate
collections, the “Full” suite of physical habitat characterization measurements as
specified in Standard Operating Procedures for Collecting Benthic
Macroinvertebrate Samples and Associated Physical and Chemical Data for
Ambient Bioassessments in California (Ode 2007), and as summarized in the
Surface Water Ambient Monitoring Program’s Stream Habitat Characterization
Form — Full Version.
Laboratory Methods
Macroinvertebrates shall be identified and classified according to the Standard
Taxonomic Effort (STE) Level I of the Southwestern Association of Freshwater
Invertebrate Taxonomists (SAFIT),2 and using a fixed-count of 600 organisms
per sample.
Quality Assurance
The discharger or its consultant(s) shall have and follow a quality assurance (QA)
plan that covers the required bioassessment monitoring. The QA plan shall
include, or be supplemented to include, a specific requirement for external QA
checks (i.e., verification of taxonomic identifications and correction of data where
1 This document is available on the Internet at: http://www.swrcb.ca.gov/swamp/docs/phab_sopr6.pdf.
http://swamp.mpsl.mlml.calstate.edu/wp-
content/uploads/2009/04/swamp_sop_bioassessment_collection_020107.pdf. 2 The current SAFIT STEs (28 November 2006) list requirements for both the Level I and Level II taxonomic
effort, and are located at: http://www.swrcb.ca.gov/swamp/docs/safit/ste_list.pdf
http://www.safit.org/Docs/ste_list.pdf. When new editions are published by SAFIT, they will supersede all
previous editions. All editions will be posted at the State Water Board’s SWAMP website.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
errors are identified). External QA checks shall be performed on one of the
discharger’s macroinvertebrate samples collected per calendar year, or ten
percent of the samples per year (whichever is greater). QA samples shall be
randomly selected. The external QA checks shall be paid for by the discharger,
and performed by the California Department of Fish and Game’s Aquatic
Bioassessment Laboratory. An alternate laboratory with equivalent or better
expertise and performance may be used if approved in writing by State Water
Board staff.
Sample Preservation and Archiving
The original sample material shall be stored in 70 percent ethanol and retained
by the discharger until: 1) all QA analyses specified herein and in the relevant QA
plan are completed; and 2) any data corrections and/or re-analyses
recommended by the external QA laboratory have been implemented. The
remaining subsampled material shall be stored in 70 percent ethanol and
retained until completeness checks have been performed according to the
relevant QA plan. The identified organisms shall be stored in 70 percent ethanol,
in separate glass vials for each final ID taxon. (For example, a sample with 45
identified taxa would be archived in a minimum of 45 vials, each containing all
individuals of the identified taxon.) Each of the vials containing identified
organisms shall be labeled with taxonomic information (i.e., taxon name,
organism count) and collection information (i.e., site name/site code, waterbody
name, date collected, method of collection). The identified organisms shall be
archived (i.e., retained) by the discharger for a period of not less than three years
from the date that all QA steps are completed, and shall be checked at least
once per year and “topped off” with ethanol to prevent desiccation. The identified
organisms shall be relinquished to the State Water Board upon request by any
State Water Board staff.
Data Submittal
The macroinvertebrate results (i.e., taxonomic identifications consistent with the
specified SAFIT STEs, and number of organisms within each taxa) shall be
submitted to the State Water Board in electronic format. The State Water Board’s
Surface Water Ambient Monitoring Program (SWAMP) is currently developing
standardized formats for reporting bioassessment data. All bioassessment data
collected after those formats become available shall be submitted using the
SWAMP formats. Until those formats are available, the biological data shall be
submitted in MS-Excel (or equivalent) format.3
The physical/habitat data shall be reported using the standard format titled
SWAMP Stream Habitat Characterization Form — Full Version.4
3 Any version of Excel, 2000 or later, may be used. 4 Available at:
http://www.waterboards.ca.gov/water_issues/programs/swamp/docs/reports/fieldforms_fullversion052908.pd
f
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
4
Invasive Species Prevention
In conducting the required bioassessment monitoring, the discharger and its
consultants shall take precautions to prevent the introduction or spread of aquatic
invasive species. At minimum, the discharger and its consultants shall follow the
recommendations of the California Department of Fish and Game to minimize the
introduction or spread of the New Zealand mudsnail.5
5 Instructions for controlling the spread of NZ mudsnails, including decontamination methods, can be found
at: http://www.dfg.ca.gov/invasives/mudsnail/
More information on AIS More information on AIS
http://www.waterboards.ca.gov/water_issues/programs/swamp/ais/
APPENDIX 4 2009-0009-DWQ September 2, 2009 1Appendix 4 Sediment TMDLs Implemented Sediment TMDLs in California. Construction was listed as a source in all fo these TMDLs in relation to road construction. Although construction was mentioned as a source, it was not given a specific allocation amount. The closest allocation amount would be for the road activity management WLA. Implementation Phase – Adoption process by the Regional Board, the State Water Resources Control Board, the Office of Administrative Law, and the US Environmental Protection Agency completed and TMDL being implemented. A. Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.albionfinaltmdl R Albion River Sedimentation Road Construction 2001 43 acres See A (table 6) B Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.EelR-middle.mainSed.temp R Middle Main Eel River and Tributaries (from Dos Rios to the South Fork) Sedimentation Road Construction 2005-2006 521 mi2 100 C Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.EelRsouth.sed.temp R South Fork Eel River Sedimentation Road Construction 12 1999 See chart 473 D Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.bigfinaltmdl R Big River Sedimentation Road Construction 12 2001 181 mi2 watershed drainage TMDL = loading capacity = nonpoint sources + background =
APPENDIX 4 2009-0009-DWQ September 2, 2009 2 393 t mi2 yr E Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.EelR-lower.Sed.temp-121807-signed R Lower Eel River Sedimentation Road Construction 12 2007 300 square-mile watershed 898 F Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.EelR-middle.Sed.temp- R Middle Fork Eel River Sedimentation Road Construction 12 2003 753 mi2 (approx. 482,000 acres) 82 G Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres Mi2 WLA tons mi2 yr 1 R1.epa.EelRnorth-Sed.temp.final-121807-signed R North Fork Eel River Sedimentation Road Construction 12 30 2002 289 (180,020 acres) 20 H Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres Mi2 WLA tons mi2 yr 1 R1.epa.EelR-upper.mainSed.temp- R Upper Main Eel River and Tributaries (including Tomki Creek, Outlet Creek and Lake Pillsbury) Sedimentation Road Construction 12 29 2004 688 (approx. 440,384 acres) 14
APPENDIX 4 2009-0009-DWQ September 2, 2009 3 I Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres WLA tons mi2 yr 1 R1.epa.gualalafinaltmdl R Gualala River Sedimentation Road Construction Not sure 300 (191,145 acres) 7 J Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.Mad-sed.turbidity R Mad River Sedimentation Road Construction 12 21 2007 480 174 K Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.mattole.sediment R Mattole River Sedimentation Road Construction 12 30 2003 296 27 or 520+27 = 547 L Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.navarro.sed.temp R Navarro River Sedimentation Road Construction Not sure 315 (201,600 acres). 50 M Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.noyo.sediment R Noyo River Sedimentation Road Construction 12 16 1999 113 (72,323 acres) 68 (three areas measured) Table 16 in the TMDL
APPENDIX 4 2009-0009-DWQ September 2, 2009 4 N Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.RedwoodCk.sed Cr Redwood Creek Sedimentation Road Construction 12 30 1998 278 1900 Total allocation O Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA – Roads tons mi2 yr 1 R1.epa.tenmile.sed R Ten Mile River Sedimentation Road Construction 2000 120 9 P Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA management tons mi2 yr 1 R1.epa.trinity.sed R Trinity River Sedimentation Road Construction 12 20 2001 2000 of 3000 covered in this TMDL See rows below 1 Cr Horse Linto Creek Sedimentation Road Construction 12 20 2001 64 528 1 Cr Mill creek and Tish Tang Sedimentation Road Construction 12 20 2001 39 210 1 Cr Willow Creek Sedimentation Road Construction 12 20 2001 43 94 1 Cr Campbell Creek and Supply Creek Sedimentation Road Construction 12 20 2001 11 1961 1 Cr Lower Mainstem and Coon Creek Sedimentation Road Construction 12 20 2001 32 63 1 R Reference Subwatershed 1 Sedimentation Road Construction 12 20 2001 434 24 1 Cr Canyon Creek Sedimentation Road 12 20 2001 64 326
APPENDIX 4 2009-0009-DWQ September 2, 2009 51 New River, Big French, Manzanita, North Fork, East Fork, North Fork 2 Dutch, Soldier, Oregon gulch, Conner Creek 3 Big Bar, Prairie Creek, Little French Creek 4 Swede, Italian, Canadian, Cedar Flat, Mill, McDonald, Hennessy, Quimby, Hawkins, Sharber 5 Stuarts Fork, Swift Creek, Coffee Creek 6 Stuart Arm, Stoney Creek, Mule Creek, East Fork, Stuart Fork, West Side Trinity Lake, Hatchet Creek, Buckeye Creek, 7 Upper Trinity River, Tangle Blue, Sunflower, Graves, Bear Upper Trinity Mainstream, Ramshorn Creek, Ripple Creek, Minnehaha Creek, Snowslide Gulch, Scorpion Creek 8 East Fork Trinity, Cedar Creek, Squirrel Gulch Construction 1 R Upper Tributaries2 Sedimentation Road Construction 12 20 2001 72 67 1 R Middle Tributaries3 Sedimentation Road Construction 12 20 2001 54 53 1 R Lower Tributaries4 Sedimentation Road Construction 12 20 2001 96 55 1 Cr Weaver and Rush Creeks Sedimentation Road Construction 12 20 2001 72 169 1 Cr Deadwood Creek Hoadley Gulch Poker Bar Sedimentation Road Construction 12 20 2001 47 68 1 L Lewiston Lake Sedimentation Road Construction 12 20 2001 25 49 1 Cr Grassvalley Creek Sedimentation Road Construction 12 20 2001 37 44 1 Cr Indian Creek Sedimentation Road Construction 12 20 2001 34 81 1 Cr Reading and Browns Creek Sedimentation Road Construction 12 20 2001 104 66 1 Cr Reference Subwatersheds5 Sedimentation Road Construction 12 20 2001 235 281 1 L, Cr Westside tributaries6 Sedimentation Road Construction 12 20 2001 93 105 1 R, Cr, G Upper trinity7 Sedimentation Road Construction 12 20 2001 161 690 1 R, Cr, G East Fork Tributaries8Sedimentation Road Construction 12 20 2001 115 65 1 R, L Eastside Tributaries9 Sedimentation Road Construction 12 20 2001 89 60
APPENDIX 4 2009-0009-DWQ September 2, 2009 69 East Side Tributaries, Trinity Lake Q Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.trinity.so.sed R, Cr South Fork Trinity River and Hayfork Creek Sedimentation Road Construction 12 1998 Not given, 19 miles long 33 (road total) R Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 1 R1.epa.vanduzen.sed R, Cr Van Duzen River and Yager Creek Sedimentation Various 12 16 1999 429 1353 total allocation 1 Upper Basin Sedimentation Road Construction 7 1 Middle Basin Sedimentation Road Construction 22 1 Lower Basin Sedimentation Road Construction 20 S Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 6 R6.blackwood.sed Cr Blackwood Creek (Placer County) Bedded Sediment Various 9 2007 11 17272 total T Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Acres mi2 WLA tons mi2 yr 6 R6.SquawCk.sed R Squaw Creek (Placer County) Sedimentation /controllable sources Various – basin plan amendment 4 13 2006 8.2 10,900
APPENDIX 4 2009-0009-DWQ September 2, 2009 7 Adopted TMDLs for Construction Sediment Sources Region Type Name Pollutant Stressor Potential Sources TMDL Completion Date Watershed Area mi2 Waste load Allocation tons mi2 yr 8 R Newport Bay San Diego Creek Watershed Sedimentation Construction Land Development 1999 2.24 (1432 acres) 125,000 tons per Year (no more than 13,000 tons per year from construction sites)
APPENDIX 4 2009-0009-DWQ 1 September 2, 2009 Appendix 4 Non Sediment TMDLs Region 1 Lost River-DIN and CBOD Pollutant Stressors/WLA Region 1 Source: Cal Trans Construction TMDL Completion Date: 12 30 2008 TMDL Type: River, Lake Watershed Area= 2996 mi2 Dissolved inorganic nitrogen (DIN) (metric tons/yr) Carbonaceous biochemical oxygen demand (CBOD) (metric tons/yr) Lost River from the Oregon border to Tule Lake .1 .2 Tule Lake Refuge .1 .2 Lower Klamath Refuge .1 .2 Region 2 San Francisco Bay-Mercury Name Pollutant Stressor/WLA TMDL Completion Date Region 2 Source:Non-Urban Stormwater Runoff TMDL Type: Bay San Francisco Bay Mercury 25 kg/year 08 09 2006
APPENDIX 4 2009-0009-DWQ 2 September 2, 2009 Region 4 Machado Lake Nutrients - Resolution No. 2008-006 (Effective Date - March 11, 2009) 1 The compliance points for effective date interim WLAs are measured in the lake. 2 No compliance points are specified for general construction stormwater permits for the year 5 interim WLAs and final WLAs Region 4 Ballona Creek-Metals and Selenium – Resolution No. 2007-015 (Effective Date October 29, 2008) Wet Weather WLAs Copper (Cu) Lead (Pb) Selenium (Se) Zinc (Zn) Region 4 Source: NPDES General Construction TMDL Completion Date: 10 29 2008 TMDL Type: Creek g/day g/day/acre g/day g/day/acre g/day g/day/acre g/day g/day/acre Ballona Creek 4.94E-07 x Daily storm volume (L) 2.20E-10 x Daily storm volume (L) 1.62E-06 x Daily storm volume (L) 7.20E-10 x Daily storm volume (L) 1.37E-07 x Daily storm volume (L) 6.10E-11 x Daily storm volume (L) 3.27E-06 x Daily storm volume (L) 1.45E-09 x Daily storm volume (L) General Construction Stormwater Permit WLAs Years After Effective Date Total Phosphorus (mg/L) Total Nitrogen (TKN + NO3-N + NO2-N) (mg/L) Interim WLAs1 At Effective Date 1.25 3.50 Interim WLAs2 5 years 1.25 2.45 Final WLAs2 9.5 years 0.10 1.00
APPENDIX 4 2009-0009-DWQ 3 September 2, 2009 Wet-weather WLA Implementation • Within seven years of the effective date of the TMDL, the construction industry will submit the results of BMP effectiveness studies to determine BMPs that will achieve compliance with the final waste load allocations assigned to construction storm water permittees. • Regional Board staff will bring the recommended BMPs before the Regional Board for consideration within eight years of the effective date of the TMDL. • General construction storm water permittees will be considered in compliance with final waste load allocations if they implement these Regional Board approved BMPs. All permittees must implement the approved BMPs within nine years of the effective date of the TMDL. If no effectiveness studies are conducted and no BMPs are approved by the Regional Board within eight years of the effective date of the TMDL, each general construction storm water permit holder will be subject to site-specific BMPs and monitoring requirements to demonstrate compliance with final waste load allocations. Dry-weather WLAs A waste load allocation of zero is assigned to all general construction storm water permits during dry weather. Dry-weather WLA Implementation Non-storm water flows authorized by the General Permit for Storm Water Discharges Associated with Construction Activity (Water Quality Order No. 99-08 DWQ), or any successor order, are exempt from the dry-weather waste load allocation equal to zero as long as they comply with the provisions of sections C.3 and A.9 of the Order No. 99-08 DWQ, which state that these authorized non-storm discharges shall be: (1) infeasible to eliminate (2) comply with BMPs as described in the Storm Water Pollution Prevention Plan prepared by the permittee, and (3) not cause or contribute to a violation of water quality standards, or comparable provisions in any successor order. Unauthorized non-storm water flows are already prohibited by Order No. 99-08 DWQ.
APPENDIX 4 2009-0009-DWQ 4 September 2, 2009 Region 4 Los Angeles River and Tributaries-Metals– Resolution No. 2007-014 (Effective Date October 29, 2008) Wet Weather WLAs Cadmium (Cd) Copper (Cu) Lead (Pb) Zinc (Zn) kg/day g/day/acre kg/day g/day/acre kg/day g/day/acre kg/day g/day/acre 5.9x10-11 x Daily storm volume (L) 7.6x10-12 x Daily storm volume (L) 3.2x10-10 x Daily storm volume (L) 4.2x10-11 x Daily storm volume (L) 1.2x10-9 x Daily storm volume (L) 1.5x10-10 x Daily storm volume (L) 3.01x10-9 x Daily storm volume (L) 3.9x10-10 x Daily storm volume (L) Wet-weather WLA Implementation • Within seven years of the effective date of the TMDL, the construction industry will submit the results of BMP effectiveness studies to determine BMPs that will achieve compliance with the final waste load allocations assigned to construction storm water permittees. • Regional Board staff will bring the recommended BMPs before the Regional Board for consideration within eight years of the effective date of the TMDL. • General construction storm water permittees will be considered in compliance with final waste load allocations if they implement these Regional Board approved BMPs. All permittees must implement the approved BMPs within nine years of the effective date of the TMDL. If no effectiveness studies are conducted and no BMPs are approved by the Regional Board within eight years of the effective date of the TMDL, each general construction storm water permit holder will be subject to site-specific BMPs and monitoring requirements to demonstrate compliance with final waste load allocations. Dry-weather WLAs A waste load allocation of zero is assigned to all general construction storm water permits during dry weather. Dry-weather WLA Implementation Non-storm water flows authorized by the General Permit for Storm Water Discharges Associated with Construction Activity (Water Quality Order No. 99-08 DWQ), or any successor order, are exempt from the dry-weather waste load allocation equal to zero as
APPENDIX 4 2009-0009-DWQ 5 September 2, 2009 long as they comply with the provisions of sections C.3 and A.9 of the Order No. 99-08 DWQ, which state that these authorized non-storm discharges shall be: (1) infeasible to eliminate (2) comply with BMPs as described in the Storm Water Pollution Prevention Plan prepared by the permittee, and (3) not cause or contribute to a violation of water quality standards, or comparable provisions in any successor order. Unauthorized non-storm water flows are already prohibited by Order No. 99-08 DWQ. Region 4 Calleguas Creek Metals TMDL – Resolution No. 2006-012 (Effective Date - March 26, 2007) Interim Limits and Final WLAs for Total Recoverable Copper, Nickel, and Selenium Interim limits and waste load allocations are applied to receiving water. A. Interim Limits Dry CMC (ug/L)Dry CCC (ug/L)Wet CMC (ug/L)Dry CMC (ug/L)Dry CCC (ug/L)Wet CMC (ug/L)Copper*23 19 204 23 19 204Nickel15 13 (a) 15 13 (a)Selenium(b) (b) (b) 14 13 (a)Calleguas and Conejo CreekRevolon SloughConstituents (a) The current loads do not exceed the TMDL under wet conditions; interim limits are not required. (b) Selenium allocations have not been developed for this reach as it is not on the 303(d) list. (c) Attainment of interim limits will be evaluated in consideration of background loading data, if available. B. Final WLAs for Total Recoverable Copper, Nickel, and Selenium Dry-Weather WLAs in Water Column
APPENDIX 4 2009-0009-DWQ 6 September 2, 2009 Low FlowAverage FlowElevated Flow Low FlowAverage FlowElevated Flow Copper1 (lbs/day)0.04*WER -0.020.12*WER -0.020.18*WER -0.030.03*WER - 0.010.06*WER - 0.030.13*WER -0.02Nickel (lbs/day) 0.100 0.120 0.440 0.050 0.069 0.116Selenium (lbs/day)(a) (a) (a) 0.004 0.003 0.004Flow RangeCalleguas and Conejo CreekRevolon Slough 1 If site-specific WERs are approved by the Regional Board, TMDL waste load allocations shall be implemented in accordance with the approved WERs using the equations set forth above. Regardless of the final WERs, total copper loading shall not exceed current loading. (a) Selenium allocations have not been developed for this reach as it is not on the 303(d) list. Wet-Weather WLAs in Water Column ConstituentCalleguas CreekRevolon SloughCopper1 (lbs/day)(0.00054*Q^2*0.032*Q - 0.17)*WER - 0.06(0.0002*Q2+0.0005*Q)*WERNickel2 (lbs/day)0.014*Q^2+0.82*Q0.027*Q^2+0.47*QSelenium2 (lbs/day)(a)0.027*Q^2+0.47*Q 1 If site-specific WERs are approved by the Regional Board, TMDL waste load allocations shall be implemented in accordance with the approved WERs using the equations set forth above. Regardless of the final WERs, total copper loading shall not exceed current loading. 2 Current loads do not exceed loading capacity during wet weather. Sum of all loads cannot exceed loads presented in the table (a) Selenium allocations have not been developed for this reach as it is not on the 303(d) list. Q: Daily storm volume. Interim Limits and Final WLAs for Mercury in Suspended Sediment
APPENDIX 4 2009-0009-DWQ 7 September 2, 2009 Interim (lbs/yr)Final (lbs/yr)Interim (lbs/yr)Final (lbs/yr)0-15,000 MGY3.3 0.4 1.7 0.115,000-25,000 MGY10.5 1.6 4 0.7Above 25,000 MGY64.6 9.3 10.2 1.8Calleguas Creek Revolon SloughFlow Range MGY: million gallons per year. In accordance with current practice, a group concentration-based WLA has been developed for all permitted stormwater discharges, including municipal separate storm sewer systems (MS4s), Caltrans, general industrial and construction stormwater permits, and Naval Air Weapons Station Point Mugu. Dischargers will have a required 25%, 50% and 100% reduction in the difference between the current loadings and the load allocations at 5, 10 and 15 years after the effective date, respectively. Achievement of required reductions will be evaluated based on progress towards BMP implementation as outlined in the urban water quality management plans (UWQMPs). If the interim reductions are not met, the dischargers will submit a report to the Executive Officer detailing why the reductions were not met and the steps that will be taken to meet the required reductions. Region 4 Calleguas Creek-OC Pesticides, PCBs, and Siltation (Resolution 2005-010) Effective Date - March 24, 2006 Interim Requirements Pollutant Stressor WLA Daily Max (µg/L) WLA Monthly Ave (µg/L) Chlordane 1.2 0.59 4,4-DDD 1.7 0.84 4,4-DDE 1.2 0.59 4,4-DDT 1.2 0.59 Dieldrin 0.28 0.14 PCB’s 0.34 0.17 Region 4 Calleguas Creek Source: Minor NPDES point sources/WDRsTMDL Completion Date: 3 24 2006 TMDL Type:Creek Toxaphene 0.33 0.16
APPENDIX 4 2009-0009-DWQ 8 September 2, 2009 Region 4 Calleguas Creek-Calleguas Creek Toxicicity (Resolution 2005-009) Effective Date - March 24, 2006 Minor sources include NPDES permittees other than POTWs and MS4s, discharging to the Calleguas Creek Watershed. A wasteload of 1.0 TUc is allocated to the minor point sources discharging to the Calleguas Creek Watershed. Additionally, the following wasteloads for chlorpyrifos and diazinon are established. Final WLAs apply as of March 24, 2006. Chlorpyrifos WLAs, ug/L Final WLA (4 day) 0.014 Diazinon WLAs, ug/L Final WLA Acute and Chronic 0.10 Region 4 Calleguas Creek-Salts (Resolution 2007-016) Effective Date – December 2, 2008 Final Dry Weather Pollutant WLA (mg/L) Region 4 Calleaguas Creek Source Permitted Stormwater Dischargers TMDL Completion Date: 12 2 2008 TMDL Type:Creek Critical Condition Flow Rate (mgd) Chloride (lb/day) TDS (lb/day) Sulfate (lb/day) Boron (lb/day) Simi 1.39 1738 9849 2897 12 Las Posas 0.13 157 887 261 N/A Conejo 1.26 1576 8931 2627 N/A Camarillo 0.06 72 406 119 N/A Pleasant Valley (Calleguas) 0.12 150 850 250 N/A Pleasant Valley (Revolon) 0.25 314 1778 523 2 Dry Weather Interim Pollutant WLA (mg/L) Chloride (mg/L) TDS (mg/L) Sulfate (mg/L) Boron (mg/L)
APPENDIX 4 2009-0009-DWQ 9 September 2, 2009 Simi 230.0 1720.0 1289.0 1.3 Las Posas 230 1720 1289 1.3 Conejo 230 1720 1289 1.3 Camarillo 230 1720 1289 1.3 Pleasant Valley (Calleguas) 230 1720 1289 1.3 Pleasant Valley (Revolon) 230 1720 1289 1.3 • Dry- weather waste load allocations apply in the receiving water at the base of each subwatershed. Dry weather allocations apply when instream flow rates are below the 86th percentile flow and there has been no measurable precipitation in the previous 24 hours. • Because wet weather flows transport a large mass of salts at low concentrations, these dischargers meet water quality objectives during wet weather. No wet weather allocations are assigned. Ballona Creek Toxic Pollutants (Resolution No. 2005-008) Effective Date - January 11, 2006 Each storm water permittee enrolled under the general construction or industrial storm water permits will receive an individual waste load allocation on a per acre basis, based on the acreage of their facility. Metals per Acre WLAs for Individual General Construction or Industrial Storm Water Permittees (g/yr/ac) Cadmium Copper Lead Silver Zinc 0.1 3 4 0.1 13 Organics per Acre WLAs for Individual General Construction or Industrial Storm Water Permittees (mg/yr/ac) Chlordane DDTs Total PCBs Total PAHs 0.04 0.14 2 350 Waste load allocations will be incorporated into the State Board general permit upon renewal or into a watershed spec ific general construction storm water permit developed by the Regional Board. Within seven years of the effective date of the TMDL, the construction industry will submit the results of BMP effectiveness studies to determine BMPs that will achieve compliance with the waste load allocations assigned to construction storm water permittees. Regional Board staff will bring the recommended BMPs before the Regional Board for consideration within eight years of the
APPENDIX 4 2009-0009-DWQ 10 September 2, 2009 effective date of the TMDL. General construction storm water permittees will be considered in compliance with waste load allocations if they implement these Regional Board approved BMPs. All general construction permittees must implement the approved BMPs within nine years of the effective date of the TMDL. If no effectiveness studies are conducted and no BMPs are approved by the Regional Board within eight years of the effective date of the TMDL, each general construction storm water permit holder will be subject to site-specific BMPs and monitoring requirements to demonstrate compliance with waste load allocations. Region 4 Marina Del Rey Harbor Toxic Pollutants TMDL (Resolution No. 2005-012) Effective Date March 22, 2006 Each storm water permittee enrolled under the general construction or industrial storm water permits will receive an individual waste load allocation on a per acre basis, based on the acreage of their facility. Metals per Acre WLAs for Individual General Construction or Industrial Storm Water Permittees (g/yr/ac) Copper Lead Zinc 2.3 3.1 10 Organics per acre WLAs for Individual General Construction or Industrial Storm Water Permittees (mg/yr/ac) Chlordane Total PCBs 0.03 1.5 Waste load allocations will be incorporated into the State Board general permit upon renewal or into a watershed spec ific general construction storm water permit developed by the Regional Board. Within seven years of the effective date of the TMDL, the construction industry will submit the results of BMP effectiveness studies to determine BMPs that will achieve compliance with the waste load allocations assigned to construction storm water permittees. Regional Board staff will bring the recommended BMPs before the Regional Board for consideration within eight years of the effective date of the TMDL. General construction storm water permittees will be considered in compliance with waste load allocations if they implement these Regional Board approved BMPs. All general construction permittees must implement the approved BMPs within nine years of the effective date of the TMDL. If no effectiveness studies are conducted and no BMPs are approved by the Regional Board within eight years of the effective date of
APPENDIX 4 2009-0009-DWQ 11 September 2, 2009 the TMDL, each general construction storm water permit holder will be subject to site-specific BMPs and monitoring requirements to demonstrate compliance with waste load allocations. Region 4 San Gabriel River and Tributaries-Metals and Selenium (EPA-established TMDL – Effective date: 3/26/07) Wet-weather allocations Waterbody Copper Lead Zinc San Gabriel River Reach 2* 0.8 kg/d Coyote Creek** 0.513 kg/d 2.07 kg/d 3.0 kg/d *Mass-based allocations are based on a flow of 260 cfs (daily storm volume = 6.4 x108 liters) **Mass-based allocations are based on a flow of 156 cfs (daily storm volume = 3.8 x108 liters) Dry-weather allocations The dry-weather copper waste load allocation for general construction storm water permittees that discharge to San Gabriel Reach 1, Coyote Creek, and the Estuary is zero. The dry-weather selenium allocation for general construction storm water permittees that discharge to San Jose Creek Reach 1 and Reach 2 is 5 µg/L (total recoverable metals). Region 4 Upper Santa Clara River Chloride TMDL Adopted by Resolution No 2006-016 Effective Date June 12, 2008 “Other NPDES dischargers” have a chloride WLA equal to 100 mg/L. This TMDL was revised by Resolution No 2008-012, which, when it becomes effective, includes the following conditional WLAs for “Other minor NPDES discharges”:
APPENDIX 4 2009-0009-DWQ 12 September 2, 2009 Reach Concentration-based Conditional WLA for Chloride (mg/L)* 6 150 (12-month Average), 230 (Daily Maximum) 5 150 (12-month Average), 230 (Daily Maximum) 4B 117 (3-month Average), 230 (Daily Maximum) *The conditional WLAs for chloride for all point sources shall apply only when chloride load reductions and/or chloride export projects are in operation by the Santa Clarita Valley Sanitation District according to the implementation plan for the TMDL. If these conditions are not met, WLAs shall be based on existing water quality objectives for chloride of 100 mg/L. Region 4 The Harbor Beaches of Ventura County-Bacteria (Adopted by Resolution No. 2007-017) Effective Date – December 18, 2008 Current and future enrollees in the Statewide Construction Activity Storm Water General Permit in the Channel Islands Harbor subwatershed are assigned WLAs of zero (0) days of allowable exceedances of the single sample limits and the rolling 30-day geometric mean limits. Single Sample Limits are: a. Total coliform density shall not exceed 10,000/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. c. Enterococcus density shall not exceed 104/100 ml. d. Total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1. Rolling 30-day Geometric Mean Limits are: a. Total coliform density shall not exceed 1,000/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. c. Enterococcus density shall not exceed 35/100 ml.
APPENDIX 4 2009-0009-DWQ 13 September 2, 2009 Los Angeles Harbor Bacteria TMDL (Adopted by Resolution No. 2004-001) Effective Date – March 10, 2005 Current and future enrollees in the Statewide Construction Activity Storm Water General Permit in the watershed are assigned WLAs of zero (0) days of allowable exceedances of the single sample limits and the rolling 30-day geometric mean. Single Sample Limits are: a. Total coliform density shall not exceed 10,000/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. c. Enterococcus density shall not exceed 104/100 ml. d. Total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1. Rolling 30-day Geometric Mean Limits are: a. Total coliform density shall not exceed 1,000/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. c. Enterococcus density shall not exceed 35/100 ml. Ballona Creek Bacteria TMDL (Adopted by Resolution No. 2006-011) Effective Date – April 27, 2007 Current and future enrollees in the Statewide Construction Activity Storm Water General Permit in the watershed are assigned WLAs of zero (0) days of allowable exceedances of the single sample limits and the rolling 30-day geometric mean. Single Sample Limits are: a. Total coliform density shall not exceed 10,000/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. c. Enterococcus density shall not exceed 104/100 ml. d. Total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1. Rolling 30-day Geometric Mean Limits are: a. Total coliform density shall not exceed 1,000/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. c. Enterococcus density shall not exceed 35/100 ml.
APPENDIX 4 2009-0009-DWQ 14 September 2, 2009 Region 4 Resolution No. 03-009 Los Angeles River and Tributaries-Nutrients Minor Point Sources Waste loads are allocated to minor point sources enrolled under NPDES or WDR permits including but not limited to Tapia WRP, Whittier Narrows WRP, Los Angeles Zoo WRP, industrial and construction stormwater, and municipal storm water and urban runoff from municipal separate storm sewer systems (MS4s) Malibu Creek Attachment A to Resolution No. 2004-019R-Bacteria Effective date: 1 24 2006. The WLAs for permittees under the NPDES General Stormwater Construction Permit are zero (0) days of allowable exceedances for the single sample limits and the rolling 30-day geometric mean. Single Sample Limits are: a. Total coliform density shall not exceed 10,000/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. c. Enterococcus density shall not exceed 104/100 ml. d. Total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1. Rolling 30-day Geometric Mean Limits are: a. Total coliform density shall not exceed 1,000/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. c. Enterococcus density shall not exceed 35/100 ml. Pollutant Stressor/WLA Total Ammonia (NH3) Nitrate-nitrogen (NO3-N) Nitrite-nitrogen (NO2-N) NO3-N + NO3-N Region 4 Minor Point Sources for NPDES/WDR Permits TMDL Effective Date: 3 23 2004 TMDL Type: River 1 Hr Ave mg/l 30 Day Ave mg/l 30 Day Ave mg/l 30 Day Ave mg/l LA River Above Los Angeles-Glendale WRP (LAG) 4.7 1.6 8.0 1.0 8.0 LA River Below LAG 8.7 2.4 8.0 1.0 8.0 Los Angeles Tributaries 10.1 2.3 8.0 1.0 8.0
APPENDIX 4 2009-0009-DWQ 15 September 2, 2009 Region 4 Marina del Rey Harbor, Mothers’ Beach and Back Basins Attachment A to Resolution No. 2003-012-Bacteria Effective date: 3 18 2004. Discharges from general construction storm water permits are not expected to be a significant source of bacteria. Therefore, the WLAs for these discharges are zero (0) days of allowable exceedances for the single sample limits and the rolling 30-day geometric mean. Any future enrollees under a general NPDES permit, general industrial storm water permit or general construction storm water permit within the MdR Watershed will also be subject to a WLA of zero days of allowable exceedances. Single Sample Limits are: a. Total coliform density shall not exceed 10,000/100 ml. b. Fecal coliform density shall not exceed 400/100 ml. c. Enterococcus density shall not exceed 104/100 ml. d. Total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1. Rolling 30-day Geometric Mean Limits are: a. Total coliform density shall not exceed 1,000/100 ml. b. Fecal coliform density shall not exceed 200/100 ml. c. Enterococcus density shall not exceed 35/100 ml. Santa Clara River Nutrients TMDL (Adopted by Resolution No. 2003-011 Effective Date - March 23, 2004 Concentration-based wasteloads are allocated to municipal, industrial and construction stormwater sources regulated under NPDES permits. For stormwater permittees discharging into Reach 7, the thirty-day WLA for ammonia as nitrogen is 1.75 mg/L and the one-hour WLA for ammonia as nitrogen is 5.2 mg/L; the thirty-day average WLA for nitrate plus nitrite as nitrogen is 6.8 mg/L. For stormwater permittees discharging into Reach 3, the thirty-day WLA for ammonia as nitrogen is 2.0 mg/L and the one-hour WLA for ammonia as nitrogen is 4.2 mg/L; the thirty-day average WLA for nitrate plus nitrite nitrogen is 8.1 mg/L.
APPENDIX 4 2009-0009-DWQ 16 September 2, 2009 Region 8 RESOLUTION NO. R8-2007- 0024 Total Maximum Daily Loads (TMDLs) for San Diego Creek, Upper and Lower Newport Bay, Orange County, California *Red= Informational WLA only, not for enforcement purposes Organochlorine Compounds TMDLs Implementation Tasks and Schedule Regional Board staff shall develop a SWPPP Improvement Program that identifies the Regional Board’s expectations with respect to the content of SWPPPs, including documentation regarding the selection and implementation of BMPs, and a sampling and analysis plan. The Improvement Program shall include specific guidance regarding the development and implementation of monitoring plans, including the constituents to be monitored, sampling frequency and analytical protocols. The SWPPP Improvement Program shall be completed by (the date of OAL approval of this BPA). No later than two months from completion of the Improvement Program, Board staff shall assure that the requirements of the Program are communicated to interested parties, including dischargers with existing authorizations under the General Construction Permit. Existing, authorized dischargers shall revise their project SWPPPs as needed to address the Program requirements as soon as possible but no later than (three months of completion of the SWPPP Improvement Program). Applicable SWPPPs that do not adequately address the Program requirements shall be considered inadequate and enforcement by the Regional Board shall proceed accordingly. The Caltrans and Orange County MS4 permits shall be revised as needed to assure that the permittees communicate the Regional Board’s SWPPP expectations, based on the SWPPP Improvement Program, with the Standard Conditions of Approval. Organochlorine Compounds Total DDT Chlordane Total PCBs Toxaphene Region 8 NPDES Construction Permit TMDL Completion Date: 1 24 1995 TMDL Type: River. Cr, Bay g/day g/yr g/day g/yr g/day g/yr g/day g/yr San Diego Creek .27 99.8 .18* 64.3* .09* 31.5* .004 1.5 Upper Newport Bay .11 40.3 .06 23.4 .06 23.2 X X Lower Newport Bay .04 14.9 .02 8.6 .17 60.7 X X
APPENDIX 5
APPENDIX 5:
Glossary
Active Areas of Construction
All areas subject to land surface disturbance activities related to the project
including, but not limited to, project staging areas, immediate access areas and
storage areas. All previously active areas are still considered active areas until
final stabilization is complete. [The construction activity Phases used in this
General Permit are the Preliminary Phase, Grading and Land Development
Phase, Streets and Utilities Phase, and the Vertical Construction Phase.]
Active Treatment System (ATS)
A treatment system that employs chemical coagulation, chemical flocculation, or
electrocoagulation to aid in the reduction of turbidity caused by fine suspended
sediment.
Acute Toxicity Test
A chemical stimulus severe enough to rapidly induce a negative effect; in aquatic
toxicity tests, an effect observed within 96 hours or less is considered acute.
Air Deposition
Airborne particulates from construction activities.
Approved Signatory
A person who has been authorized by the Legally Responsible Person to sign,
certify, and electronically submit Permit Registration Documents, Notices of
Termination, and any other documents, reports, or information required by the
General Permit, the State or Regional Water Board, or U.S. EPA. The Approved
Signatory must be one of the following:
1. For a corporation or limited liability company: a responsible corporate officer.
For the purpose of this section, a responsible corporate officer means: (a) a
president, secretary, treasurer, or vice-president of the corporation in charge
of a principal business function, or any other person who performs similar
policy or decision-making functions for the corporation or limited liability
company; or (b) the manager of the facility if authority to sign documents has
been assigned or delegated to the manager in accordance with corporate
procedures;
2. For a partnership or sole proprietorship: a general partner or the proprietor,
respectively;
3. For a municipality, State, Federal, or other public agency: a principal
executive officer, ranking elected official, city manager, council president, or
any other authorized public employee with managerial responsibility over the
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construction or land disturbance project (including, but not limited to, project
manager, project superintendent, or resident engineer);
4. For the military: any military officer or Department of Defense civilian, acting
in an equivalent capacity to a military officer, who has been designated;
5. For a public university: an authorized university official;
6. For an individual: the individual, because the individual acts as both the
Legally Responsible Person and the Approved Signatory; or
7. For any type of entity not listed above (e.g. trusts, estates, receivers): an
authorized person with managerial authority over the construction or land
disturbance project.
Beneficial Uses
As defined in the California Water Code, beneficial uses of the waters of the state
that may be protected against quality degradation include, but are not limited to,
domestic, municipal, agricultural and industrial supply; power generation;
recreation; aesthetic enjoyment; navigation; and preservation and enhancement
of fish, wildlife, and other aquatic resources or preserves.
Best Available Technology Economically Achievable (BAT)
As defined by USEPA, BAT is a technology-based standard established by the
Clean Water Act (CWA) as the most appropriate means available on a national
basis for controlling the direct discharge of toxic and nonconventional pollutants
to navigable waters. The BAT effluent limitations guidelines, in general,
represent the best existing performance of treatment technologies that are
economically achievable within an industrial point source category or
subcategory.
Best Conventional Pollutant Control Technology (BCT)
As defined by USEPA, BCT is a technology-based standard for the discharge
from existing industrial point sources of conventional pollutants including
biochemical oxygen demand (BOD), total suspended sediment (TSS), fecal
coliform, pH, oil and grease.
Best Professional Judgment (BPJ)
The method used by permit writers to develop technology-based NPDES permit
conditions on a case-by-case basis using all reasonably available and relevant
data.
Best Management Practices (BMPs)
BMPs are scheduling of activities, prohibitions of practices, maintenance
procedures, and other management practices to prevent or reduce the discharge
of pollutants. BMPs also include treatment requirements, operating procedures,
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and practices to control site runoff, spillage or leaks, sludge or waste disposal, or
drainage from raw material storage.
Chain of Custody (COC)
Form used to track sample handling as samples progress from sample collection
to the analytical laboratory. The COC is then used to track the resulting
analytical data from the laboratory to the client. COC forms can be obtained from
an analytical laboratory upon request.
Coagulation
The clumping of particles in a discharge to settle out impurities, often induced by
chemicals such as lime, alum, and iron salts.
Common Plan of Development
Generally a contiguous area where multiple, distinct construction activities may
be taking place at different times under one plan. A plan is generally defined as
any piece of documentation or physical demarcation that indicates that
construction activities may occur on a common plot. Such documentation could
consist of a tract map, parcel map, demolition plans, grading plans or contract
documents. Any of these documents could delineate the boundaries of a
common plan area. However, broad planning documents, such as land use
master plans, conceptual master plans, or broad-based CEQA or NEPA
documents that identify potential projects for an agency or facility are not
considered common plans of development.
Daily Average Discharge
The discharge of a pollutant measured during any 24-hour period that reasonably
represents a calendar day for purposes of sampling. For pollutants with
limitations expressed in units of mass, the daily discharge is calculated as the
total mass of the pollutant discharged during the day. For pollutants with
limitations expressed in other units of measurement (e.g., concentration) the
daily discharge is calculated as the average measurement of the pollutant
throughout the day (40 CFR 122.2). In the case of pH, the pH must first be
converted from a log scale.
Debris
Litter, rubble, discarded refuse, and remains of destroyed inorganic
anthropogenic waste.
Direct Discharge
A discharge that is routed directly to waters of the United States by means of a
pipe, channel, or ditch (including a municipal storm sewer system), or through
surface runoff.
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Discharger
The Legally Responsible Person (see definition) or entity subject to this General
Permit.
Dose Rate (for ATS)
In exposure assessment, dose (e.g. of a chemical) per time unit (e.g. mg/day),
sometimes also called dosage.
Drainage Area
The area of land that drains water, sediment, pollutants, and dissolved materials
to a common outlet.
Effluent
Any discharge of water by a discharger either to the receiving water or beyond
the property boundary controlled by the discharger.
Effluent Limitation
Any numeric or narrative restriction imposed on quantities, discharge rates, and
concentrations of pollutants which are discharged from point sources into waters
of the United States, the waters of the contiguous zone, or the ocean.
Erosion
The process, by which soil particles are detached and transported by the actions
of wind, water, or gravity.
Erosion Control BMPs
Vegetation, such as grasses and wildflowers, and other materials, such as straw,
fiber, stabilizing emulsion, protective blankets, etc., placed to stabilize areas of
disturbed soils, reduce loss of soil due to the action of water or wind, and prevent
water pollution.
Field Measurements
Testing procedures performed in the field with portable field-testing kits or
meters.
Final Stabilization
All soil disturbing activities at each individual parcel within the site have been
completed in a manner consistent with the requirements in this General Permit.
First Order Stream
Stream with no tributaries.
Flocculants
Substances that interact with suspended particles and bind them together to form
flocs.
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Good Housekeeping BMPs
BMPs designed to reduce or eliminate the addition of pollutants to construction
site runoff through analysis of pollutant sources, implementation of proper
handling/disposal practices, employee education, and other actions.
Grading Phase (part of the Grading and Land Development Phase)
Includes reconfiguring the topography and slope including; alluvium removals;
canyon cleanouts; rock undercuts; keyway excavations; land form grading; and
stockpiling of select material for capping operations.
Hydromodification
Hydromodification is the alteration of the hydrologic characteristics of coastal and
non-coastal waters, which in turn could cause degradation of water resources.
Hydromodification can cause excessive erosion and/or sedimentation rates,
causing excessive turbidity, channel aggradation and/or degradation.
Identified Organisms
Organisms within a sub-sample that is specifically identified and counted.
Inactive Areas of Construction
Areas of construction activity that are not active and those that have been active
and are not scheduled to be re-disturbed for at least 14 days.
Index Period
The period of time during which bioassessment samples must be collected to
produce results suitable for assessing the biological integrity of streams and
rivers. Instream communities naturally vary over the course of a year,and
sampling during the index period ensures that samples are collected during a
time frame when communities are stable so that year-to-year consistency is
obtained. The index period approach provides a cost-effective alternative to year-
round sampling. Furthermore, sampling within the appropriate index period will
yield results that are comparable to the assessment thresholds or criteria for a
given region, which are established for the same index period. Because index
periods differ for different parts of the state, it is essential to know the index
period for your area.
K Factor
The soil erodibility factor used in the Revised Universal Soil Loss Equation
(RUSLE). It represents the combination of detachability of the soil, runoff
potential of the soil, and the transportability of the sediment eroded from the soil.
Legally Responsible Person
The Legally Responsible Person (LRP) will typically be the project proponent.
The categories of persons or entities that are eligible to serve as the LRP are set
forth below. For any construction or land disturbance project where multiple
persons or entities are eligible to serve as the LRP, those persons or entities
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shall select a single LRP. In exceptional circumstances, a person or entity that
qualifies as the LRP may provide written authorization to another person or entity
to serve as the LRP. In such a circumstance, the person or entity that provides
the authorization retains all responsibility for compliance with the General Permit.
Except as provided in category 2(d), a contractor who does not satisfy the
requirements of any of the categories below is not qualified to be an LRP.
The following persons or entities may serve as an LRP:
1. A person, company, agency, or other entity that possesses a real property
interest (including, but not limited to, fee simple ownership, easement,
leasehold, or other rights of way) in the land upon which the construction or
land disturbance activities will occur for the regulated site.
2. In addition to the above, the following persons or entities may also serve as
an LRP:
a. For linear underground/overhead projects, the utility company,
municipality, or other public or private company or agency that owns or
operates the LUP;
b. For land controlled by an estate or similar entity, the person who has day-
to-day control over the land (including, but not limited to, a bankruptcy
trustee, receiver, or conservator);
c. For pollution investigation and remediation projects, any potentially
responsible party that has received permission to conduct the project from
the holder of a real property interest in the land; or
d. For U.S. Army Corp of Engineers projects, the U.S. Army Corps of
Engineers may provide written authorization to its bonded contractor to
serve as the LRP, provided, however, that the U.S. Army Corps of
Engineers is also responsible for compliance with the general permit, as
authorized by the Clean Water Act or the Federal Facilities Compliance
Act.
Likely Precipitation Event
Any weather pattern that is forecasted to have a 50% or greater chance of
producing precipitation in the project area. The discharger shall obtain likely
precipitation forecast information from the National Weather Service Forecast
Office (e.g., by entering the zip code of the project’s location at
http://www.srh.noaa.gov/forecast).
Maximum Allowable Threshold Concentration (MATC)
The allowable concentration of residual, or dissolved, coagulant/flocculant in
effluent. The MATC shall be coagulant/flocculant-specific, and based on toxicity
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testing conducted by an independent, third-party laboratory. A typical MATC
would be:
The MATC is equal to the geometric mean of the NOEC (No Observed Effect
Concentration) and LOEC (Lowest Observed Effect Concentration) Acute and
Chronic toxicity results for most sensitive species determined for the specific
coagulant. The most sensitive species test shall be used to determine the
MATC.
Natural Channel Evolution
The physical trend in channel adjustments following a disturbance that causes
the river to have more energy and degrade or aggrade more sediment. Channels
have been observed to pass through 5 to 9 evolution types. Once they pass
though the suite of evolution stages, they will rest in a new state of equilibrium.
Non-Storm Water Discharges
Discharges are discharges that do not originate from precipitation events. They
can include, but are not limited to, discharges of process water, air conditioner
condensate, non-contact cooling water, vehicle wash water, sanitary wastes,
concrete washout water, paint wash water, irrigation water, or pipe testing water.
Non-Visible Pollutants
Pollutants associated with a specific site or activity that can have a negative
impact on water quality, but cannot be seen though observation (ex: chlorine).
Such pollutants being discharged are not authorized.
Numeric Action Level (NAL)
Level is used as a warning to evaluate if best management practices are
effective and take necessary corrective actions. Not an effluent limit.
Original Sample Material
The material (i.e., macroinvertebrates, organic material, gravel, etc.) remaining
after the subsample has been removed for identification.
pH
Unit universally used to express the intensity of the acid or alkaline condition of a
water sample. The pH of natural waters tends to range between 6 and 9, with
neutral being 7. Extremes of pH can have deleterious effects on aquatic
systems.
Post-Construction BMPs
Structural and non-structural controls which detain, retain, or filter the release of
pollutants to receiving waters after final stabilization is attained.
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Preliminary Phase (Pre-Construction Phase - Part of the Grading and Land
Development Phase)
Construction stage including rough grading and/or disking, clearing and grubbing
operations, or any soil disturbance prior to mass grading.
Project
Qualified SWPPP Developer
Individual who is authorized to develop and revise SWPPPs.
Qualified SWPPP Practitioner
Individual assigned responsibility for non-storm water and storm water visual
observations, sampling and analysis, and responsibility to ensure full compliance
with the permit and implementation of all elements of the SWPPP, including the
preparation of the annual compliance evaluation and the elimination of all
unauthorized discharges.
Qualifying Rain Event
Any event that produces 0.5 inches or more precipitation with a 48 hour or
greater period between rain events.
R Factor
Erosivity factor used in the Revised Universal Soil Loss Equation (RUSLE). The
R factor represents the erosivity of the climate at a particular location. An
average annual value of R is determined from historical weather records using
erosivity values determined for individual storms. The erosivity of an individual
storm is computed as the product of the storm's total energy, which is closely
related to storm amount, and the storm's maximum 30-minute intensity.
Rain Event Action Plan (REAP)
Written document, specific for each rain event, that when implemented is
designed to protect all exposed portions of the site within 48 hours of any likely
precipitation event.
Remaining Sub sampled Material
The material (e.g., organic material, gravel, etc.) that remains after the organisms
to be identified have been removed from the subsample for identification.
(Generally, no macroinvertebrates are present in the remaining subsampled
material, but the sample needs to be checked and verified using a complete
Quality Assurance (QA) plan)
Routine Maintenance
Activities intended to maintain the original line and grade, hydraulic capacity, or
original purpose of a facility.
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Runoff Control BMPs
Measures used to divert runon from offsite and runoff within the site.
Run-on
Discharges that originate offsite and flow onto the property of a separate project
site.
Revised Universal Soil Loss Equation (RUSLE)
Empirical model that calculates average annual soil loss as a function of rainfall
and runoff erosivity, soil erodibility, topography, erosion controls, and sediment
controls.
Sampling and Analysis Plan
Document that describes how the samples will be collected, under what
conditions, where and when the samples will be collected, what the sample will
be tested for, what test methods and detection limits will be used, and what
methods/procedures will be maintained to ensure the integrity of the sample
during collection, storage, shipping and testing (i.e., quality assurance/quality
control protocols).
Sediment
Solid particulate matter, both mineral and organic, that is in suspension, is being
transported, or has been moved from its site of origin by air, water, gravity, or ice
and has come to rest on the earth's surface either above or below sea level.
Sedimentation
Process of deposition of suspended matter carried by water, wastewater, or other
liquids, by gravity. It is usually accomplished by reducing the velocity of the liquid
below the point at which it can transport the suspended material.
Sediment Control BMPs
Practices that trap soil particles after they have been eroded by rain, flowing
water, or wind. They include those practices that intercept and slow or detain the
flow of storm water to allow sediment to settle and be trapped (e.g., silt fence,
sediment basin, fiber rolls, etc.).
Settleable Solids (SS)
Solid material that can be settled within a water column during a specified time
frame. It is typically tested by placing a water sample into an Imhoff settling cone
and then allowing the solids to settle by gravity for a given length of time.
Results are reported either as a volume (mL/L) or a mass (mg/L) concentration.
Sheet Flow
Flow of water that occurs overland in areas where there are no defined channels
where the water spreads out over a large area at a uniform depth.
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Site
Soil Amendment
Any material that is added to the soil to change its chemical properties,
engineering properties, or erosion resistance that could become mobilized by
storm water.
Streets and Utilities Phase
Construction stage including excavation and street paving, lot grading, curbs,
gutters and sidewalks, public utilities, public water facilities including fire
hydrants, public sanitary sewer systems, storm sewer system and/or other
drainage improvements.
Structural Controls
Any structural facility designed and constructed to mitigate the adverse impacts
of storm water and urban runoff pollution
Suspended Sediment Concentration (SSC)
The measure of the concentration of suspended solid material in a water sample
by measuring the dry weight of all of the solid material from a known volume of a
collected water sample. Results are reported in mg/L.
Total Suspended Solids (TSS)
The measure of the suspended solids in a water sample includes inorganic
substances, such as soil particles and organic substances, such as algae,
aquatic plant/animal waste, particles related to industrial/sewage waste, etc. The
TSS test measures the concentration of suspended solids in water by measuring
the dry weight of a solid material contained in a known volume of a sub-sample
of a collected water sample. Results are reported in mg/L.
Toxicity
The adverse response(s) of organisms to chemicals or physical agents ranging
from mortality to physiological responses such as impaired reproduction or
growth anomalies.
Turbidity
The cloudiness of water quantified by the degree to which light traveling through
a water column is scattered by the suspended organic and inorganic particles it
contains. The turbidity test is reported in Nephelometric Turbidity Units (NTU) or
Jackson Turbidity Units (JTU).
Vertical Construction Phase
The Build out of structures from foundations to roofing, including rough
landscaping.
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Waters of the United States
Generally refers to surface waters, as defined by the federal Environmental
Protection Agency in 40 C.F.R. § 122.2.1
Water Quality Objectives (WQO)
Water quality objectives are defined in the California Water Code as limits or
levels of water quality constituents or characteristics, which are established for
the reasonable protection of beneficial uses of water or the prevention of
nuisance within a specific area.
1 The application of the definition of “waters of the United States” may be difficult to determine; there are
currently several judicial decisions that create some confusion. If a landowner is unsure whether the
discharge must be covered by this General Permit, the landowner may wish to seek legal advice.
APPENDIX 6
APPENDIX 6:
Acronym List
ASBS Areas of Special Biological Significance
ASTM American Society of Testing and Materials; Standard Test
Method for Particle-Size Analysis of Soils
ATS Active Treatment System
BASMAA Bay Area Storm water Management Agencies Association
BAT Best Available Technology Economically Achievable
BCT Best Conventional Pollutant Control Technology
BMP Best Management Practices
BOD Biochemical Oxygen Demand
BPJ Best Professional Judgment
CAFO Confined Animal Feeding Operation
CCR California Code of Regulations
CEQA California Environmental Quality Act
CFR Code of Federal Regulations
CGP NPDES General Permit for Storm Water Discharges
Associated with Construction Activities
CIWQS California Integrated Water Quality System
CKD Cement Kiln Dust
COC Chain of Custody
CPESC Certified Professional in Erosion and Sediment Control
CPSWQ Certified Professional in Storm Water Quality
CSMP Construction Site Monitoring Program
CTB Cement Treated Base
CTR California Toxics Rule
CWA Clean Water Act
CWC California Water Code
CWP Center for Watershed Protection
DADMAC Diallyldimethyl-ammonium chloride
DDNR Delaware Department of Natural Resources
DFG Department of Fish and Game
DHS Department of Health Services
DWQ Division of Water Quality
EC Electrical Conductivity
ELAP Environmental Laboratory Accreditation Program
EPA Environmental Protection Agency
ESA Environmentally Sensitive Area
ESC Erosion and Sediment Control
HSPF Hydrologic Simulation Program Fortran
JTU Jackson Turbidity Units
LID Low Impact Development
LOEC Lowest Observed Effect Concentration
LRP Legally Responsible Person
LUP Linear Underground/Overhead Projects
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MATC Maximum Allowable Threshold Concentration
MDL Method Detection Limits
MRR Monitoring and Reporting Requirements
MS4 Municipal Separate Storm Sewer System
MUSLE Modified Universal Soil Loss Equation
NAL Numeric Action Level
NEL Numeric Effluent Limitation
NICET National Institute for Certification in Engineering
Technologies
NOAA National Oceanic and Atmospheric Administration
NOEC No Observed Effect Concentration
NOI Notice of Intent
NOT Notice of Termination
NPDES National Pollutant Discharge Elimination System
NRCS Natural Resources Conservation Service
NTR National Toxics Rule
NTU Nephelometric Turbidity Units
O&M Operation and Maintenance
PAC Polyaluminum chloride
PAM Polyacrylamide
PASS Polyaluminum chloride Silica/sulfate
POC Pollutants of Concern
PoP Probability of Precipitation
POTW Publicly Owned Treatment Works
PRDs Permit Registration Documents
PWS Planning Watershed
QAMP Quality Assurance Management Plan
QA/QC Quality Assurance/Quality Control
REAP Rain Event Action Plan
Regional Board Regional Water Quality Control Board
ROWD Report of Waste Discharge
RUSLE Revised Universal Soil Loss Equation
RW Receiving Water
SMARTS Storm water Multi Application Reporting and Tracking
System
SS Settleable Solids
SSC Suspended Sediment Concentration
SUSMP Standard Urban Storm Water Mitigation Plan
SW Storm Water
SWARM Storm Water Annual Report Module
SWAMP Surface Water Ambient Monitoring Program
SWMM Storm Water Management Model
SWMP Storm Water Management Program
SWPPP Storm Water Pollution Prevention Plan
TC Treatment Control
TDS Total Dissolved Solids
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
APPENDIX 6
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3
TMDL Total Maximum Daily Load
TSS Total Suspended Solids
USACOE U.S. Army Corps of Engineers
USC United States Code
USEPA United States Environmental Protection Agency
USGS United States Geological Survey
WDID Waste Discharge Identification Number
WDR Waste Discharge Requirements
WLA Waste Load Allocation
WET Whole Effluent Toxicity
WRCC Western Regional Climate Center
WQBEL Water Quality Based Effluent Limitation
WQO Water Quality Objective
WQS Water Quality Standard
APPENDIX 7
APPENDIX 7:
State and Regional Water Resources Control Board Contacts
NORTH COAST REGION (1)
5550 Skylane Blvd, Ste. A
Santa Rose, CA 95403
(707) 576-2220 FAX: (707)523-0135
CENTRAL COAST REGION (3)
895 Aerovista Place, Ste 101
San Luis Obispo, CA 93401
(805) 549-3147 FAX: (805) 543-0397
LAHONTAN REGION (6 SLT)
2501 Lake Tahoe Blvd.
South Lake Tahoe, CA 96150
(530) 542-5400 FAX: (530) 544-2271
SAN FRANCISCO BAY REGION (2)
1515 Clay Street, Ste. 1400
Oakland, CA 94612
(510) 622-2300 FAX: (510) 622-2640
LOS ANGELES REGION (4)
320 W. 4th Street, Ste. 200
Los Angeles, CA 90013
(213) 576-6600 FAX: (213) 576-6640
VICTORVILLE OFFICE (6V)
14440 Civic Drive, Ste. 200
Victorville, CA 92392-2383
(760) 241-6583 FAX: (760) 241-7308
CENTRAL VALLEY REGION (5S)
11020 Sun Center Dr., #200
Rancho Cordova, CA 95670-6114
(916) 464-3291 FAX: (916) 464-4645
COLORADO RIVER BASIN REGION (7)
73-720 Fred Waring Dr., Ste. 100
Palm Desert, CA 92260
(760) 346-7491 FAX: (760) 341-6820
FRESNO BRANCH OFFICE (5F)
1685 E St.
Fresno, CA 93706
(559) 445-5116 FAX: (559) 445-5910
SANTA ANA REGION (8)
3737 Main Street, Ste. 500
Riverside, CA 92501-3339
Phone (951) 782-4130 FAX: (951) 781-6288
REDDING BRANCH OFFICE (5R)
415 Knollcrest Drive, Ste. 100
Redding, CA 96002
(530) 224-4845 FAX: (530) 224-4857
SAN DIEGO REGION (9)
9174 Sky Park Court, Ste. 100
San Diego, CA 92123-4340
(858) 467-2952 FAX: (858) 571-6972
STATE WATER BOARD
PO Box 1977
Sacramento, CA 95812-1977
stormwater@waterboards.ca.gov
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
1
THIS SWPPP WALL MAP MUST BE POSTED IN CONSTRUCTION TRAILER AT ALL TIMES
4
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2016-05-16; 01:35pm, Drawing Title: Appendix B2 - SWPPP Wall Map 1.dwg, User ID: kkozlik NORTH5 10 20
1" = 10'-0"SCALE :
0
2
THIS SWPPP WALL MAP MUST BE POSTED IN CONSTRUCTION TRAILER AT ALL TIMES
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2016-05-16; 01:38pm, Drawing Title: Appendix B2 - SWPPP Wall Map 2.dwg, User ID: kkozlik
4
NORTH0 10 20 40
1" = 20'-0"SCALE :
3
THIS SWPPP WALL MAP MUST BE POSTED IN CONSTRUCTION TRAILER AT ALL TIMES
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2016-05-16; 01:31pm, Drawing Title: Appendix B2 - SWPPP Wall Map 3.dwg, User ID: kkozlik
4
NORTH0102040
1" = 20'-0"SCALE :
A
C
E
B
D
F
4
EROSION CONTROL NOTES
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
0 10 20 40
1" = 20'-0"SCALE :
Plot Date: 2015-12-17; 11:11am, Drawing Title: Appendix B2 - SWPPP Wall Map 0.dwg, User ID: esmith
4
53XXX-XXXXXPlot Date: 2015-11-23; 11:27am, Drawing Title: 1440-001gr-c1.0ts.dwg, User ID: Kevin WeiX X
XXX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKKWKKJTB, JJXXC1.0
CXXC1.153XXX-XXXXX510 201" = 10'-0"SCALE :0Plot Date: 2015-11-23; 11:33am, Drawing Title: 1440-001gr-c1.1pg.dwg, User ID: Kevin WeiX X
X
XX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405 PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKCONSTRUCTION NOTESKWKKJTB, JJ
FABXXC1.253XXX-XXXXX01020 401" = 20'-0"SCALE :Plot Date: 2015-11-23; 11:41am, Drawing Title: 1440-001gr-c1.2pg.dwg, User ID: Kevin WeiX X
X
XX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405 PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKCONSTRUCTION NOTESKWKKJTB, JJ
G XXC1.353XXX-XXXXX01020 401" = 20'-0"SCALE :Plot Date: 2015-11-23; 11:46am, Drawing Title: 1440-001gr-c1.3pg.dwg, User ID: Kevin WeiX X
X
XX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405 PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKCONSTRUCTION NOTESKWKKJTB, JJ
XXC2.153XXX-XXXXX510 201" = 10'-0"SCALE :0Plot Date: 2015-11-23; 11:53am, Drawing Title: 1440-001gr-c2.1ec.dwg, User ID: Kevin WeiX X
X
XX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405 PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKKWKKJTB, JJEROSION CONTROL NOTES
XXC2.253XXX-XXXXX01020 401" = 20'-0"SCALE :Plot Date: 2015-11-23; 11:58am, Drawing Title: 1440-001gr-c2.2ec.dwg, User ID: Kevin WeiX X
X
XX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405 PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKKWKKJTB, JJEROSION CONTROL NOTES
XXC2.353XXX-XXXXX01020 401" = 20'-0"SCALE :Plot Date: 2015-11-23; 11:59am, Drawing Title: 1440-001gr-c2.3ec.dwg, User ID: Kevin WeiX X
X
XX
XXXXXXXXXKEY MAPN.T.S.L-1.3L-1.2C-1.3D-1.1C-1.2C-1.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405 PLT DATE: 11/24/15 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i9DeAvenu ,San iego,CAth 2101iSute005,11C-2.3C-2.2C-2.1POINSETTIA COMMUNITY PARKKWKKJTB, JJEROSION CONTROL NOTES
1
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2016-05-16; 01:42pm, Drawing Title: Appendix B4 - Sampling Locations Plan.dwg, User ID: kkozlik
1
BASIN A
C= 0.40
AREA= 0.69 AC
Q(100)= 1.9 CFS
BASIN B
C= 0.40
AREA= 1.46 AC
Q(100)= 4.0 CFS
BASIN C
C= 0.40
AREA= 1.38 AC
Q(100)= 3.8 CFS
POINSETTIA COMMUNITY PARK
EXISTING CONDITIONS HYDROLOGY EXHIBIT GNIREENEIGN
6390 Greenwich Dr., Suite 170, San Diego, California 92122
tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
SDG PROJECT NO: 15-406 PLT DATE: 11/24/15
E
C
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LEGEND
EXISTING CONTOUR
EXISTING STORM DRAIN
HYDROLOGY BASIN
FLOW DIRECTION
HYDROLOGY CALCULATIONS
Q=C*I*A
SOIL TYPE D
Tc= 5 MIN, P6= 2.6 IN => I= 6.85 IN/HR
BASIN A
C= 0.50
AREA= 0.69 AC
Q(100)= 2.4 CFS
BASIN B
C= 0.50
AREA= 1.46 AC
Q(100)= 5.0 CFS
BASIN C
C= 0.40
AREA= 1.38 AC
Q(100)= 3.8 CFS
POINSETTIA COMMUNITY PARK
PROPOSED CONDITIONS HYDROLOGY EXHIBIT GNIREENEIGN
6390 Greenwich Dr., Suite 170, San Diego, California 92122
tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
SDG PROJECT NO: 15-406 PLT DATE: 11/24/15
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LEGEND
EXISTING CONTOUR
PROPOSED CONTOUR
EXISTING STORM DRAIN
PROPOSED STORM DRAIN
HYDROLOGY BASIN
FLOW DIRECTION
HYDROLOGY CALCULATIONS
Q=C*I*A
SOIL TYPE D
Tc= 5 MIN, P6= 2.6 IN => I= 6.85 IN/HR
ATTACHMENT B
PERMIT REGISTRATION DOCUMENTS (PRDs) TO COMPLY WITH THE TERMS
OF THE GENERAL PERMIT TO DISCHARGE STORM WATER
ASSOCIATED WITH CONSTRUCTION ACTIVITY
GENERAL INSTRUCTIONS
A.
B. Who Must Submit
C. Construction Activity Not Covered By This General Permit
D. Annual Fees and Fee Calculation
E. When to Apply
F. Requirements for Completing Permit Registration Documents (PRDs)
G. Standard PRD Requirements (All Dischargers)
H. Additional PRD Requirements Related to Construction Type
I. Exceptions to Standard PRD Requirements
J. Description of PRDs
SWPPPs
Risk Assessment
Post-Construction Water Balance Calculator
ATS Design Document and Certification
1
2
3
4
5
6
7
8
9
10
11
12
1314
15
16
17
18
19
20
ABC
Entry
30
0.2
2.1465
Watershed Erosion Estimate (=RxKxLS) in tons/acre
Site Sediment Risk Factor
Low Sediment Risk: < 15 tons/acre
Medium Sediment Risk: >=15 and <75 tons/acre
High Sediment Risk: >= 75 tons/acre
Sediment Risk Factor Worksheet
A) R Factor
R Factor Value
B) K Factor (weighted average, by area, for all site soils)
Analyses of data indicated that when factors other than rainfall are held constant, soil loss is directly proportional to a
rainfall factor composed of total storm kinetic energy (E) times the maximum 30-min intensity (I30) (Wischmeier and
Smith, 1958). The numerical value of R is the average annual sum of EI30 for storm events during a rainfall record of at
least 22 years. "Isoerodent" maps were developed based on R values calculated for more than 1000 locations in the
Western U.S. Refer to the link below to determine the R factor for the project site.
http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm
K Factor Value
LS Factor Value
Low
C) LS Factor (weighted average, by area, for all slopes)
The soil-erodibility factor K represents: (1) susceptibility of soil or surface material to erosion, (2) transportability of the
sediment, and (3) the amount and rate of runoff given a particular rainfall input, as measured under a standard condition.
Fine-textured soils that are high in clay have low K values (about 0.05 to 0.15) because the particles are resistant to
detachment. Coarse-textured soils, such as sandy soils, also have low K values (about 0.05 to 0.2) because of high
infiltration resulting in low runoff even though these particles are easily detached. Medium-textured soils, such as a silt
loam, have moderate K values (about 0.25 to 0.45) because they are moderately susceptible to particle detachment and
they produce runoff at moderate rates. Soils having a high silt content are especially susceptible to erosion and have high
K values, which can exceed 0.45 and can be as large as 0.65. Silt-size particles are easily detached and tend to crust,
producing high rates and large volumes of runoff. Use Site-specific data must be submitted.
The effect of topography on erosion is accounted for by the LS factor, which combines the effects of a hillslope-length
factor, L, and a hillslope-gradient factor, S. Generally speaking, as hillslope length and/or hillslope gradient increase, soil
loss increases. As hillslope length increases, total soil loss and soil loss per unit area increase due to the progressive
accumulation of runoff in the downslope direction. As the hillslope gradient increases, the velocity and erosivity of runoff
increases. Use the LS table located in separate tab of this spreadsheet to determine LS factors. Estimate the weighted
LS for the site prior to construction.
12.879
Site-specific K factor guidance
LS Table
Receiving Water (RW) Risk Factor Worksheet Entry Score
A. Watershed Characteristics yes/no
A.1. Does the disturbed area discharge (either directly or indirectly) to 303(d)-listed
waterbody impaired by sediment? For help with impaired waterbodies please check the
attached worksheet or visit the link below:
2006 Approved Sediment-impared WBs Worksheet
http://www.waterboards.ca.gov/water_issues/programs/tmdl/303d_lists2006_epa.shtml
OR
A.2. Does the disturbed area discharge to a waterbody with designated beneficial uses o
SPAWN & COLD & MIGRATORY?
http://www.ice.ucdavis.edu/geowbs/asp/wbquse.asp
No Low
Low Medium High
Low Level 1
High Level 3
Project Sediment Risk:Low 1
Project RW Risk:Low 1
Project Combined Risk:Level 1
Combined Risk Level Matrix
Sediment Risk
Receiving Water RiskLevel 2
Level 2
R-FACTOR CALCULATION SUMMARY
Project: Poinsettia Community Park
Date: December 2015
Source: United States Environmental Protection Agency, Office of Water. Stormwater Phase II
Final Rule Construction Rainfall Erosivity Waiver. EPA 833-F-00-014, Revised March
2012. Fact Sheet 3.1.
Construction Duration: September 1, 2016 to September 1, 2017 (~1 Year)
Figure 1 – Erosivity Index Zone Map
EI Distribution Zone: 25
Table 1 – Erosivity Index Table
EI percentage 09-01-2016 to 12-31-2016: 100% –63.2% = 36.8%
EI percentage 01-01-2017 to 09-01-2017: 63.2% – 0% = 63.2%
Total EI percentage (1 year duration): 100%
Figure 4 – Isoerodent Map of California
Interpolated annual erosion index for location: 30
R-Factor Calculation
30 x (100%) = 30
R-Factor for Project: 30
1
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2016-05-16; 01:43pm, Drawing Title: Appendix C4 - Site Plan.dwg, User ID: kkozlik
1
SWPPP AMENDMENTS
This SWPPP shall be amended:
Whenever there is a change in construction or operations which may affect the
discharge of pollutants to surface waters, groundwater(s), or a municipal separate storm
system, (MS4); or
If any conditions of the Permits is violated or the general objective of reducing or
eliminating pollutants in storm water discharges has not been achieved. If the RWQCB
determines that a permit violation has occurred, the SWPPP shall be amended and
implemented within 14 calendar days after notification by the RWQCB;
Annually, prior to the defined rainy season, when required by the project’s Special
Provisions; and
When deemed necessary by the Engineer of Record, Qualified SWPPP Practitioner
(QSP), or the Qualified SWPPP Developer (QSD).
The following item will be included in each amendment:
Who requested the amendment
The location of the proposed change
The reason for the change
The original BMP proposed, if any
The new BMP proposed
Amendment
No. Date Description Preparer
Amendment
No. Date Description Preparer
FUSCOE ENGINEERING, INC. 1
STORM WATER POLLUTION PREVENTION
PLAN
(SWPPP)
AMENDMENT
DATE: November 16, 2016
PROJECT NAME: Poinsettia Park
PROJECT AREA: 2.5 Acres
TYPE OF WORK: Community Park
WDID NO.: 9 37C377137
ORIGINATOR: Emma C. Smith, Fuscoe Engineering, Inc.
DESCRIPTION OF UPDATE:
This amendment was prepared for the Poinsettia Community Park in Carlsbad, CA. The
original NOI was submitted by The City of Carlsbad. The WDID 9 37C377137 was
assigned. Construction plans have changed to include an additional area designated for
pickleball courts. This proposed construction area will be added to the area covered
under the Construction General Permit with the above assigned WDID for a new disturbed
area total of 2.51 acres. The construction end date has not changed. The area increase
does not affect the project Risk Level. The Risk Level remains at Level 1.
Amend the following sections:
Replace cover page with attached revised cover page dated November 2016
2.1.1 Project Description
2.1.3 Existing Drainage Conditions
2.1.4 Proposed Drainage Conditions
2.1.7 Site Plan
ATTACHMENTS:
Attachment 1: Appendix B2 – SWPPP Wall Map
Attachment 2: Appendix B3 – Erosion Control Plan
Attachment 3: Appendix B4 – Sampling Locations Plan
Attachment 4: Appendix B5 – SWQMP Map
Attachment 5: Appendix B6 – Hydrology Memo
Attachment 6: Appendix G – Runoff Coefficient Calculations
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 2
CERTIFICATION
QUALIFIED SWPPP DEVELOPER (QSD) CERTIFICATION
“I certify under penalty of law that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of
the person or persons who manage the system or those person(s) directly responsible for
gathering the information, to the best of my knowledge and belief, the information submitted
is, true, accurate, and complete.
I am aware that there are significant penalties for submitting false information, including the
possibility for fine and imprisonment for knowing violations.”
PREPARED BY: Fuscoe Engineering, Inc.
_______________________________________ ___________________________
Signature Date
Emma Smith, CPESC, QSD
Environmental Scientist
CPESC #6440
QSD #20121, Exp. 8.30.17
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 170
San Diego, CA 92122
858.554.1500
esmith@fuscoe.com
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 3
AMENDMENT
for
POINSETTIA COMMUNITY PARK
CARLSBAD, CA
1. SWPPP REQUIREMENTS
1.1. INTRODUCTION
No change.
1.2. SWPPP OBJECTIVES
No change.
1.3. PERMIT REGISTRATION DOCUMENTS
No change.
1.4. SWPPP AVAILABILITY AND IMPLEMENTATION
No change.
1.5. SWPPP AMENDMENTS
No change.
1.6. RETENTION OF RECORDS
No change.
1.7. REQUIRED NON-COMPLIANCE REPORTING
No change.
1.8. ANNUAL REPORT
No change.
1.9. CHANGES TO PERMIT COVERAGE
No change.
1.10. NOTICE OF TERMINATION
No change.
1.11. REFERENCES
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 4
2. PROJECT INFORMATION
2.1. PROJECT AND SITE DESCRIPTION
2.1.1. Project Description
The following language to be considered in addition to existing language in this
section:
Six proposed pickleball courts will be added to a portion of the site as well as two
proposed biofiltration basins to capture runoff from the proposed impervious surfaces.
2.1.2. Site Description
No change.
2.1.3. Existing Drainage Conditions
The following language to be considered in addition to existing language in this
section:
The location of the proposed pickleball courts is in rough grade condition. Site sheet
flows to existing storm drain inlets and is conveyed north and then west converging
with other site flows via existing storm drain.
2.1.4. Proposed Drainage Conditions
The following language to be considered in addition to existing language in this
section:
The pickleball courts at the northeast portion is split into two drainage areas. The
eastern portion will flow east and western portion will flow west. Both areas will be
discharged to a storm drain inlet and be directed to a post-construction treatment
control basin, a bio-filtration basin before being discharged to existing storm drain on
the northern perimeter. Flow will converge with other project site flows and carry on
via the same drainage system.
2.1.5. Nature of Fill Material & Existing Data Describing the Soil
No Change.
2.1.6. Environmentally Sensitive Site Conditions
No Change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 5
2.1.7. Site Plan
Approximately 2.51acres will be developed and/or disturbed on the Poinsettia
Community Park project site. Under the existing condition, the Poinsettia Community
Park project site is primarily an existing community park. Under the proposed
condition, the project area will include increases in hardscape (roads, pads,
infrastructure improvements) and softscape (landscaping) thereby altering the runoff
conditions. A summary of the proposed impervious area composition is illustrated in
the table below.
Table 2.1 Site Impervious Area Composition
Parameter Estimate
Construction Site Area 2.51 acres
Percentage Impervious Area Before Construction 0%
Runoff Coefficient Before Construction 0.35
Percentage Impervious Area After Construction 17.5%
Runoff Coefficient After Construction 0.37
Note: Calculations are provided in Appendix G.
2.2. STORM WATER RUN-ON FROM OFF-SITE AREAS
No change.
2.3. FINDINGS OF THE CONSTRUCTION SITE SEDIMENT & RECEIVING WATER
RISK DETERMINATION
No change.
2.4. CONSTRUCTION SCHEDULE
No change.
2.5. POTENTIAL CONSTRUCTION SITE POLLUTANT SOURCES
No change.
2.6. IDENTIFICATION OF NON-STORM WATER DISCHARGES
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 6
3. BEST MANAGEMENT PRACTICES (BMPS)
No change.
3.1. SCHEDULE FOR BMP IMPLEMENTATION
No change.
3.2. SWPPP EXHIBITS
No change.
3.3. EROSION CONTROL AND SEDIMENT CONTROL
No change.
3.4. NON-STORM WATER AND MATERIAL MANAGEMENT
No change.
3.5. POST-CONSTRUCTION STORM WATER MANAGEMENT MEASURES
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 7
4. BMP INSPECTION, MAINTENANCE, AND
RAIN EVENT ACTION PLANS (REAPS)
4.1. BMP INSPECTION AND MAINTENANCE
No change.
4.2. RAIN EVENT ACTION PLANS
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 8
5. TRAINING
5.1. OVERVIEW
No change.
5.2. TRAINING REQUIREMENTS
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 9
6. RESPONSIBLE PARTIES AND OPERATORS
6.1. RESPONSIBLE PARTIES
No change.
6.2. CONTRACTOR LIST
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 10
7. CONSTRUCTION SITE MONITORING PROGRAM (CSMP)
7.1. PURPOSE
No change.
7.2. APPLICABILITY OF PERMIT REQUIREMENTS
No change.
7.3. NUMERIC ACTION LEVELS, EFFLUENT LIMITATIONS, AND DISCHARGE
PROHIBITIONS
No change.
7.4. SAFETY
No change.
7.5. VISUAL MONITORING (INSPECTIONS)
No change.
7.6. WATER QUALITY SAMPLING AND ANALYSIS
No change.
7.7. WATERSHED MONITORING OPTION
No change.
7.8. QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC)
No change.
7.9. REPORTING REQUIREMENTS AND RECORDS RETENTION
No change.
7.10. ACTIVE TREATMENT SYSTEMS (ATS) REQUIREMENTS
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 11
ATTACHMENT 1
ADDITION TO APPENDIX B2
SWPPP WALL MAP
4THIS SWPPP WALL MAP MUST BE POSTED IN CONSTRUCTION TRAILER AT ALL TIMESPOINSETTIA COMMUNITY PARK6390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comPlot Date: 2016-11-16; 02:25pm, Drawing Title: Appendix B2 - SWPPP Wall Map 4.dwg, User ID: esmith401020401" = 20'-0"SCALE :
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 12
ATTACHMENT 2
REVISED APPENDIX B3
EC PLAN, SITE PLAN
X X X X X X X X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X X X X X X X XXXX
XXXXXXXXXXX63CP-1XPOINSETTIA COMMUNITY PARKPICKLEBALL COURTS491-44605510201" = 10'-0"SCALE :0XXXpervious definitionpervious concrete problemsprevious weatherpervious vs permeable
XXXXXX
X
X XXXXXXKEY MAPN.T.S.KWKKJTB, JJ6390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405Plot Date: 2016-11-15; 09:18am, Drawing Title: 1440-001gr-Pickleball.dwg, User ID: Kevin WeiPLT DATE: 11/16/2016 CP-1CP-2CONSTRUCTION NOTES
EROSION CONTROL NOTESEROSION CONTROL LEGEND64CP-2XPOINSETTIA COMMUNITY PARKPICKLEBALL COURTS491-44605510201" = 10'-0"SCALE :0XXXpervious definitionpervious concrete problemsprevious weatherpervious vs permeable
XXXXXX
X
X XXXXXXKEY MAPN.T.S.KWKKJTB, JJ6390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comSDG PROJECT NO: 15-405Plot Date: 2016-11-15; 09:26am, Drawing Title: 1440-001gr-cp2ec.dwg, User ID: Kevin WeiPLT DATE: 11/16/2016 CP-1CP-2
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 13
ATTACHMENT 3
REVISED APPENDIX B4
SAMPLING LOCATIONS PLAN
1
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2016-11-16; 02:45pm, Drawing Title: Appendix B4 - Sampling Locations Plan.dwg, User ID: esmith
1
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 14
ATTACHMENT 4
REVISED APPENDIX B5
SWQMP EXHIBIT
DMA 1
0.51 AC
DRAINS TO BMP
DMA 2
0.05 AC
DRAINS TO BMP
DMA 3
0.03 AC
DRAINS TO BMP
DMA 4
0.03 AC
DRAINS TO BMP
BMP 1
815 SF
BMP 2
220 SF
BMP 3
115 SF
BMP 4
128 SF
POINSETTIA COMMUNITY PARK
DMA AND HYDROMODIFICATION MANAGEMENT EXHIBIT GNIREENEIGN
6390 Greenwich Dr., Suite 170, San Diego, California 92122
tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
SDG PROJECT NO: 15-406 PLT DATE: 11/16/16
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LEGEND
CONTOUR
STORM DRAIN
DRAINAGE MANAGEMENT AREA
PERVIOUS RESILIENT SURFACING
PERVIOUS PAVEMENT
IMPERVIOUS PAVEMENT
BIOFILTRATION WITH
PARTIAL RETENTION
SITE DATA
UNDERLYING HYDROLOGIC SOIL GROUP: D
DEPTH TO GROUNDWATER: >20'
EXISTING HYDROLOGIC FEATURES ONSITE: NONE
CRITICAL COARSE SEDIMENT YIELD AREAS: NONE
DMA AND BMP TABLE
BIOFILTRATION WITH PARTIAL RETENTION
SUBDRAIN AT CATCH BASIN DETAIL
DMA 5
0.16 AC
DRAINS TO BMP
DMA 6
0.37 AC
DRAINS TO BMP
BMP 5
550 SF
BMP 6
1,600 SF
POINSETTIA COMMUNITY PARK
DMA AND HYDROMODIFICATION MANAGEMENT EXHIBIT GNIREENEIGN
6390 Greenwich Dr., Suite 170, San Diego, California 92122
tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
SDG PROJECT NO: 15-406 PLT DATE: 11/16/16
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LEGEND
CONTOUR
STORM DRAIN
DRAINAGE MANAGEMENT AREA
PERVIOUS RESILIENT SURFACING
PERVIOUS PAVEMENT
IMPERVIOUS PAVEMENT
BIOFILTRATION WITH
PARTIAL RETENTION
SITE DATA
UNDERLYING HYDROLOGIC SOIL GROUP: D
DEPTH TO GROUNDWATER: >20'
EXISTING HYDROLOGIC FEATURES ONSITE: NONE
CRITICAL COARSE SEDIMENT YIELD AREAS: NONE
DMA AND BMP TABLE
BMP 5: BIOFILTRATION
BMP 6: BIOFILTRATION + CISTERN
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 15
ATTACHMENT 5
REVISED APPENDIX B6
HYDROLOGY MEMO
6390 GREENWICH DR., STE. 170, SAN DIEGO, CA 92122 TEL 858.554.1500 FAX 858.597.0335 WWW.FUSCOE.COM
HYDROLOGY MEMORANDUM
POINSETTIA COMMUNITY PARK PHASE III
PREPARED FOR: City of Carlsbad
PREPARED BY: Kenneth T. Kozlik, PE
Fuscoe Engineering, Inc.
DATE:
REVISED:
March 18, 2016
November 16, 2016
PURPOSE
The purpose of this memorandum is to document the design of the drainage system for the
Poinsettia Community Park Phase III project, and assess the capacity of the existing drainage
system to accept these flows. The project has four main work areas, which will include the
construction of an expansion of the tot lot, a dog park, a soccer arena, and pickleball courts,
along with associated walkways. The site of the proposed tot lot expansion includes an existing tot
lot, walkways, and turf areas. The site of the proposed dog park is currently an open turf area
with concrete drainage swales running through it. The site of the proposed soccer arena is
currently a rough graded pad. The site of the pickleball courts is currently an open field.
METHODOLOGY
For hydrology calculations, the peak 100-year storm event was used. Flow was determined using
the Rational Method, given as Q = C x I x A. Components of the equation are described below.
Runoff Coefficient, C:
Based on review of the Soil Hydrologic Groups map given in the County Hydrology Manual, the
hydrologic soil groups in the area of the site are Groups B and D. See Attachment 1. As a
conservative assumption, Group D soils have been assumed. In the existing condition, minor
amounts of impervious surfaces are present throughout the site. An existing imperviousness
percentage of 20% is used, resulting in a runoff coefficient of 0.46. Where additional impervious
surfaces will be constructed as a part of the project, a runoff coefficient of 0.52 is used, reflecting
the low density park land use and an approximate impervious percentage of 30%. This is the case
in the tot lot and dog park areas of the site. In the soccer arena, only pervious surfacing is
proposed, so the existing conditions runoff coefficient of 0.46 is also used for the proposed
conditions. In the Pickleball Courts area, the existing runoff coefficient of 0.46 will be used, but a
runoff coefficient of 0.71 is used, reflecting an approximate impervious percentage of 65%.
POINSETTIA COMMUNITY PARK PHASE III – HYDROLOGY MEMORANDUM MARCH 2016
PAGE 2 OF 3
Rainfall Intensity, I:
The rainfall intensity is dependent on the time of concentration for a given drainage basin. Given
the relatively small size of the drainage basins on site (less than one acre), a time of concentration
of 5 minutes has been assumed. This is the minimum time of concentration allowable by the
Hydrology Manual and again is a conservative assumption. Based on isopluvial maps in the
Hydrology Manual, the P6 for the 100-year storm is 2.6”. See Attachment 2.
Rainfall intensity is determined from the equation given in the Hydrology Manual as:
I = 7.44 x P6 x Tc-0.645 = 7.44 x 2.6 x 5.0-0.645 = 6.85 in/hr
Basin Area, A:
The tributary basin area is determined based on topography, either existing or proposed. The four
project work areas have been divided into separate drainage basins. Basin A is 0.69 acres and
includes the tot lot area. Basin B consists of the dog park area and is 1.46 acres. The soccer
arena is 1.38 acres and has been designated as Basin C. Basin D is 0.52 acres and includes the
pickleball courts area. The proposed improvements are contained within the interior portions of
these drainage basins. Therefore, the basin boundaries and areas remain the same in proposed
conditions.
Flow Rate, Q:
The 100-year peak flowrate of runoff is then calculated as follows:
Q100 = C x I100 x A
HYDROLOGY RESULTS
The table below summarized the hydrology results for the existing and proposed conditions.
Basin Condition Runoff
Coefficient
Intensity
in/hr
Area
ac
Q(100)
cfs
A Existing 0.46 6.85 0.69 2.2
Proposed 0.52 6.85 0.69 2.5
B Existing 0.46 6.85 1.46 4.6
Proposed 0.52 6.85 1.46 5.2
C Existing 0.46 6.85 1.38 4.3
Proposed 0.46 6.85 1.38 4.3
D Existing 0.46 6.85 0.52 1.6
Proposed 0.71 6.85 0.52 2.5
Both Basins A and B exhibit a slight increase in peak discharge in proposed conditions. Due to
the use of permeable surfacing in Basin C, the peak discharge does not change in this basin.
Basin D exhibit a slightly higher increase in peak discharge in proposed condition. The following
section will address the capacity of the proposed and existing storm drain system in Basins A, B
and D to illustrate sufficient capacity is available to convey the proposed flows.
HYDRAULICS CALCULATIONS
POINSETTIA COMMUNITY PARK PHASE III – HYDROLOGY MEMORANDUM MARCH 2016
PAGE 3 OF 3
To assess the capacity of the existing and proposed storm drains in Basins A, B and D, pipe flow
calculations were prepared using the FlowMaster program by Bentley Systems. These pipe
segments have been identified as SD Pipes 1, 2, and 3 on the attached Proposed Conditions
Hydrology Map. For HDPE pipes, a Manning’s n factor of 0.012 was used. A Manning’s n factor
of 0.013 was used for RCP pipe. The normal depth was calculated to ensure that the pipes have
adequate capacity for the proposed 100-year peak flows.
SD Pipes 1 and 2 convey runoff from significant offsite areas as well. To obtain the total flows
conveyed by the pipe segments in existing conditions, the as-built grading plans were consulted
(Drawing 331-3). These plans indicate a 100-year peak flow rate of 34.3 cfs for SD Pipe 1, and
32.2 cfs for SD Pipe 2. To account for the increase in proposed flow rates, these flow rates were
increased accordingly. The increase in Basin A is 0.3, so the proposed flow rate in SD Pipe 1 is
analyzed as 34.6. Since SD Pipe 1 consists of two parallel 18” HDPE pipes, this flow is divided
evenly between the two pipes, resulting is 17.3 cfs in each pipe. SD Pipe 2 conveys runoff from
both Basins A and B. The total increase in these two basins is 0.9 cfs, so flow in SD Pipe 2 is
analyzed as 33.1 cfs. SD Pipe 3 in Basin D was design to withhold peak flow rate for a community
center. The impervious area for the proposed development of Pickleball courts is comparable to
the percent impervious of the construction of a community center. It is assumed the existing SD
Pipe 3 is design for adequate flow rate.
Results of the hydraulic calculations are included in Attachment 5. SD Pipe 1 will easily convey
the proposed flow rate without becoming pressurized. SD Pipe 2 will be pressurized under
proposed conditions. However, the proposed Hydraulic Grade Line of 125.39 at the upstream
end of the pipe is more than 1 foot below the proposed flow line of the inlet of 126.50.
Therefore, the proposed flow rates will not cause flooding or overflow within Basin B.
CONCLUSION
While the proposed Poinsettia Community Park Phase III project will slightly increase runoff from
existing conditions in Basins A and B, the 100-year peak flow is within the capacity of the existing
and proposed storm drain system.
ATTACHMENTS
Attachment 1 Soil Group Map
Attachment 2 Isopluvial Map
Attachment 3 Existing Conditions Hydrology Map
Attachment 4 Proposed Conditions Hydrology Map
Attachment 5 FlowMaster Hydraulics Calculations
BASIN A
C= 0.46
AREA= 0.69 AC
Q(100)= 2.2 CFS
BASIN B
C= 0.46
AREA= 1.46 AC
Q(100)= 4.6 CFS
BASIN C
C= 0.46
AREA= 1.38 AC
Q(100)= 4.3 CFS
BASIN D
C= 0.46
AREA= 0.52 AC
Q(100)= 1.6CFS
POINSETTIA COMMUNITY PARK
EXISTING CONDITIONS HYDROLOGY EXHIBIT GNIREENEIGN
6390 Greenwich Dr., Suite 170, San Diego, California 92122
tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
SDG PROJECT NO: 15-406 PLT DATE: 11/16/16
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LEGEND
EXISTING CONTOUR
EXISTING STORM DRAIN
HYDROLOGY BASIN
FLOW DIRECTION
HYDROLOGY CALCULATIONS
Q=C*I*A
SOIL TYPE D
Tc= 5 MIN, P6= 2.6 IN => I= 6.85 IN/HR
BASIN A
C= 0.52
AREA= 0.69 AC
Q(100)= 2.5 CFS
BASIN B
C= 0.52
AREA= 1.46 AC
Q(100)= 5.2 CFS
BASIN C
C= 0.46
AREA= 1.38 AC
Q(100)= 4.3 CFS
SD PI
P
E
1
2-18"
H
D
P
E
@
1
0.
9
%
SD PI
P
E
2
18" R
C
P
@
8.
4
%
BASIN D
C= 0.71
AREA= 0.52 AC
Q(100)= 2.5 CFS
SD
P
I
P
E
3
EX
.
8
"
P
V
C
@
±
2
.
0
%
POINSETTIA COMMUNITY PARK
PROPOSED CONDITIONS HYDROLOGY EXHIBIT GNIREENEIGN
6390 Greenwich Dr., Suite 170, San Diego, California 92122
tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
SDG PROJECT NO: 15-406 PLT DATE: 11/16/16
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LEGEND
EXISTING CONTOUR
PROPOSED CONTOUR
EXISTING STORM DRAIN
PROPOSED STORM DRAIN
HYDROLOGY BASIN
FLOW DIRECTION
HYDROLOGY CALCULATIONS
Q=C*I*A
SOIL TYPE D
Tc= 5 MIN, P6= 2.6 IN => I= 6.85 IN/HR
Project Description
Friction Method Manning Formula
Solve For Normal Depth
Input Data
Roughness Coefficient 0.012
Channel Slope 0.10900 ft/ft
Diameter 1.50 ft
Discharge 17.30 ft³/s
Results
Normal Depth 0.71 ft
Flow Area 0.83 ft²
Wetted Perimeter 2.29 ft
Hydraulic Radius 0.36 ft
Top Width 1.50 ft
Critical Depth 1.44 ft
Percent Full 47.6 %
Critical Slope 0.02018 ft/ft
Velocity 20.83 ft/s
Velocity Head 6.74 ft
Specific Energy 7.46 ft
Froude Number 4.93
Maximum Discharge 40.41 ft³/s
Discharge Full 37.57 ft³/s
Slope Full 0.02311 ft/ft
Flow Type SuperCritical
GVF Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00 ft
Average End Depth Over Rise 0.00 %
Normal Depth Over Rise 47.65 %
Downstream Velocity Infinity ft/s
SD Pipe 1
3/18/2016 11:51:29 AM
Bentley Systems, Inc. Haestad Methods Solution CenterBentley FlowMaster V8i (SELECTseries 1) [08.11.01.03]
27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 2of1Page
GVF Output Data
Upstream Velocity Infinity ft/s
Normal Depth 0.71 ft
Critical Depth 1.44 ft
Channel Slope 0.10900 ft/ft
Critical Slope 0.02018 ft/ft
SD Pipe 1
3/18/2016 11:51:29 AM
Bentley Systems, Inc. Haestad Methods Solution CenterBentley FlowMaster V8i (SELECTseries 1) [08.11.01.03]
27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 2of2Page
Project Description
Friction Method Manning Formula
Solve For Pressure at 1
Input Data
Pressure 2 0.00 feet H2O
Elevation 1 123.90 ft
Elevation 2 115.50 ft
Length 99.56 ft
Roughness Coefficient 0.013
Diameter 1.50 ft
Discharge 33.10 ft³/s
Results
Pressure 1 1.49 feet H2O
Headloss 9.89 ft
Energy Grade 1 130.84 ft
Energy Grade 2 120.95 ft
Hydraulic Grade 1 125.39 ft
Hydraulic Grade 2 115.50 ft
Flow Area 1.77 ft²
Wetted Perimeter 4.71 ft
Velocity 18.73 ft/s
Velocity Head 5.45 ft
Friction Slope 0.09930 ft/ft
SD Pipe 2
3/18/2016 12:09:07 PM
Bentley Systems, Inc. Haestad Methods Solution CenterBentley FlowMaster V8i (SELECTseries 1) [08.11.01.03]
27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 1of1Page
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA NOVEMBER 2016
FUSCOE ENGINEERING, INC. 16
ATTACHMENT 6
REVISED APPENDIX G
COMPUTATION SHEET FOR
DETERMINING
RUNOFF COEFFICIENTS
Computation Sheet for Determining Runoff Coefficients
Total Site Area = 2.51 (A)
Existing Site Conditions
Impervious Site Area1 = 0 (B)
Impervious Site Area Runoff Coefficient 2, 4 = 0.95 (C)
Pervious Site Area3 = 2.51 (D)
Pervious Site Area Runoff Coefficient4 = 0.35 (E)
Existing Site Area Runoff Coefficient
(A)
EDCB = 0.35 (F)
Proposed Site Conditions (after construction)
Impervious Site Area1 = 0.44 (G)
Impervious Site Area Runoff Coefficient 2, 4 = 0.95 (H)
Pervious Site Area3 = 2.07 (I)
Pervious Site Area Runoff Coefficient4 = 0.25 (J)
Proposed Site Area Runoff Coefficient
(A)
JIHG = .37 (K)
1. Includes paved areas, areas covered by buildings, and other impervious surfaces.
2. Use 0.95 unless lower or higher runoff coefficient can be verified.
3. Includes areas of vegetation, most unpaved or uncovered soil surfaces, and other pervious
areas.
4. See the table on the following page for typical C values.
Run-on Discharges
The work areas at Poinsettia Park accept run-on from two storm drain systems which convey
flows from offsite areas. A storm drain system discharges to the surface at the southwest
corner of Basin A. This storm drain system conveys flows from the parking lot and other park
facilities to the north and east. This runoff is then conveyed to Basin B through a dual 24” pipe
culvert, and flows through Basin B in a concrete-lined swale. Based on record drawing, the
100-year flowrate in this storm drain system is 34.3 cfs. A second offsite storm drain system
enters in the southwesterly portion of Basin B and again flows through a concrete-lined swale.
This storm drain conveys flows from the park areas to the south and east, with a 100-year flow
rate of 19.1 cfs per record drawings.
Figure 819.2A
Runoff Coefficients for Undeveloped Areas
Watershed Types
Extreme High Normal Low
Relief .28 -.35
Steep, rugged terrain
with average slopes
above 30%
.20 -.28
Hilly, with average
slopes of 10 to 30%
.14 -.20
Rolling, with average
slopes of 5 to 10%
.08 -.14
Relatively flat land,
with average slopes
of 0 to 5%
Soil
Infiltration .12 -.16
No effective soil
cover, either rock or
thin soil mantle of
negligible
infiltration capacity
.08 -.12
Slow to take up
water, clay or
shallow loam soils of
low infiltration
capacity, imperfectly
or poorly drained
.06 -.08
Normal; well drained
light or medium
textured soils, sandy
loams, silt and silt
loams
.04 -.06
High; deep sand or
other soil that takes
up water readily,
very light well
drained soils
Vegetal
Cover .12 -.16
No effective plant
cover, bare or very
sparse cover
.08 -.12
Poor to fair; clean
cultivation crops, or
poor natural cover,
less than 20% of
drainage area over
good cover
.06 -.08
Fair to good; about
50% of area in good
grassland or wood-
land, not more than
50% of area in
cultivated crops
.04 -.06
Good to excellent;
about 90% of
drainage area in
good grassland,
woodland or
equivalent cover.
Surface
Storage .10 -.12
Negligible surface
depression few and
shallow;
drainageways steep
and small, no
marshes
.08 -.10
Low; well defined
system of small
drainageways; no
ponds or marshes
.06 -.08
Normal;
considerable surface
depression storage;
lakes and pond
marshes
.04 -.06
High; surface stor-
age, high; drainage
system not sharply
defined; large flood
plain storage or large
number of ponds or
marshes.
Given An undeveloped watershed consisting of; Solution:
1) rolling terrain with average slopes of 5%, Relief 0.14
2) clay type soils, Soil Infiltration 0.08
3) good grassland area, and Vegetal Cover 0.04
4) normal surface depressions. Surface Storage 0.06
C= 0.32
Find The runoff coefficient, C, for the above watershed.
Table 819.2B
Runoff Coefficients for
Developed Areas
Type of Drainage Area Runoff
Coefficient
Business:
Downtown areas 0.70 - 0.95
Neighborhood areas 0.50 - 0.70
Residential:
Single-family areas 0.30 - 0.50
Multi-units, detached 0.40 - 0.60
Multi-units, attached 0.60 - 0.75
Suburban 0.25 - 0.40
Apartment dwelling areas 0.50 - 0.70
Industrial:
Light areas 0.50 - 0.80
Heavy areas 0.60 - 0.90
Parks, cemeteries: 0.10 - 0.25
Playgrounds: 0.20 - 0.40
Railroad yard areas: 0.20 - 0.40
Unimproved areas: 0.10 - 0.30
Lawns:
Sandy soil, flat, 2% 0.05 - 0.10
Sandy soil, average, 2-7% 0.10 - 0.15
Sandy soil, steep, 7% 0.15 - 0.20
Heavy soil, flat, 2% 0.13 - 0.17
Heavy soil, average, 2-7% 0.18 - 0.25
Heavy soil, steep, 7% 0.25 - 0.35
Streets:
Asphaltic 0.70 - 0.95
Concrete 0.80 - 0.95
Brick 0.70 - 0.85
Drives and walks 0.75 - 0.85
Roofs: 0.75 - 0.95
FUSCOE ENGINEERING, INC. 1
STORM WATER POLLUTION PREVENTION
PLAN
(SWPPP)
AMENDMENT
DATE: October 16, 2017
PROJECT NAME: Poinsettia Park
PROJECT AREA: 2.5 Acres Revised project area: 1.49 Acres
TYPE OF WORK: Community Park
WDID NO.: 9 37C377137
ORIGINATOR: Emma C. Smith, Fuscoe Engineering, Inc.
DESCRIPTION OF UPDATE:
This amendment was prepared for the Poinsettia Community Park in Carlsbad, CA. The
original NOI was submitted by The City of Carlsbad. The WDID 9 37C377137 was
assigned. Construction plans schedule have changed exclude the ‘dog park’ area (1.01
Acres). This proposed construction area will be removed from the area covered under the
Construction General Permit with the above assigned WDID. The new disturbed area total
1.49 acres. The construction start and end date have been revised to January 8th, 2018 to
January 18th, 2019, respectively. The Risk Level remains at Risk Level 1.
Amend the following sections:
Replace cover page with attached revised cover page dated October 2017
2.1.1 Project Description
2.1.7 Site Plan
2.3 Findings of The Construction Site Sediment & Receiving Water Risk Determination
2.4 Construction Schedule
ATTACHMENTS:
Attachment 1: Revised Appendix B2– SWPPP Wall Map – Replace Sheet 2 of 4 only
Attachment 2: Appendix B3 – Erosion Control Plans – Replace
Attachment 3: Appendix B4 – Sampling Locations Plan – Replace
Attachment 4: Appendix B5 – SWQMP Exhibit – Replace
Attachment 5: Appendix C3 – Revised Risk Calculations – Replace
Attachment 6: Appendix G – Runoff Coefficient Calculations – Replace
--
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 2
CERTIFICATION
QUALIFIED SWPPP DEVELOPER (QSD) CERTIFICATION
“I certify under penalty of law that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of
the person or persons who manage the system or those person(s) directly responsible for
gathering the information, to the best of my knowledge and belief, the information submitted
is, true, accurate, and complete.
I am aware that there are significant penalties for submitting false information, including the
possibility for fine and imprisonment for knowing violations.”
PREPARED BY: Fuscoe Engineering, Inc.
_______________________________________ ___________________________
Signature Date
Emma Smith, CPESC, CPSWQ, QSD
Environmental Scientist
CPESC #6440
CPSWQ #954
QSD #20121, Exp. 8.30.19
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 170
San Diego, CA 92122
858.554.1500
esmith@fuscoe.com
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 3
AMENDMENT
for
POINSETTIA COMMUNITY PARK
CARLSBAD, CA
1. SWPPP REQUIREMENTS
1.1. INTRODUCTION
No change.
1.2. SWPPP OBJECTIVES
No change.
1.3. PERMIT REGISTRATION DOCUMENTS
No change.
1.4. SWPPP AVAILABILITY AND IMPLEMENTATION
No change.
1.5. SWPPP AMENDMENTS
No change.
1.6. RETENTION OF RECORDS
No change.
1.7. REQUIRED NON-COMPLIANCE REPORTING
No change.
1.8. ANNUAL REPORT
No change.
1.9. CHANGES TO PERMIT COVERAGE
No change.
1.10. NOTICE OF TERMINATION
No change.
1.11. REFERENCES
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 4
2. PROJECT INFORMATION
2.1. PROJECT AND SITE DESCRIPTION
2.1.1. Project Description
The proposed project will reconfigure and expand the Tot Lot, and add an arena-style
soccer field within the existing park footprint. Six proposed pickleball courts will be
added to a portion of the site as well as two proposed biofiltration basins to capture
runoff from the proposed impervious surfaces.
2.1.2. Site Description
No change.
2.1.3. Existing Drainage Conditions
No change.
2.1.4. Proposed Drainage Conditions
No change.
2.1.5. Nature of Fill Material & Existing Data Describing the Soil
No Change.
2.1.6. Environmentally Sensitive Site Conditions
No Change.
2.1.7. Site Plan
Approximately 1.49 acres will be developed and/or disturbed on the Poinsettia
Community Park project site. Under the existing condition, the Poinsettia Community
Park project site is primarily an existing community park. Under the proposed
condition, the project area will include increases in hardscape (roads, pads,
infrastructure improvements) and softscape (landscaping) thereby altering the runoff
conditions. A summary of the proposed impervious area composition is illustrated in
the table below.
Table 2.1 Site Impervious Area Composition
Parameter Estimate
Construction Site Area 1.49 acres
Percentage Impervious Area Before Construction 0%
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 5
Runoff Coefficient Before Construction 0.35
Percentage Impervious Area After Construction 29%
Runoff Coefficient After Construction 0.37
Note: Calculations are provided in Appendix G.
2.2. STORM WATER RUN-ON FROM OFF-SITE AREAS
No change.
2.3. FINDINGS OF THE CONSTRUCTION SITE SEDIMENT & RECEIVING WATER
RISK DETERMINATION
The General Permit uses a risk-based approach for controlling erosion and sediment discharges
from construction sites, since the rates of erosion and sedimentation can vary from site to site
depending on factors such as duration of construction activities, climate, topography, soil
condition, and proximity to receiving water bodies. The General Permit identifies three levels of
risk with differing requirements, designated as Risk Levels 1, 2 and 3, with Risk Level 1 having
the fewest permit requirements and Risk Level 3 having the most-stringent requirements.
The Risk Assessment incorporates two risk factors for a project site: sediment risk (general
amount of sediment potentially discharged from the site) and receiving water risk (the risk
sediment discharges can pose to receiving waters). Sediment risk from a project site is
determined utilizing a derivative of the Revised Universal Soil Loss Equation (RUSLE), a model
developed by the US Department of Agriculture (USDA) and is utilized by the US EPA for
estimating rates of soil loss at construction sites during rain events. The Receiving Water Risk is
based on whether or not the project site drains to a sediment-sensitive water body or a water
body with SPAWN, COLD, and MIGRATORY designated beneficial uses as specified in the San
Diego RWQCB’s Basin Plan.
The resultant risk levels for Sediment Risk and Receiving Water Risk is then assessed in a matrix
to determine the combined risk level, based on a scale of 1 to 3. The combined risk level matrix
is presented as Table 2.3.
Table 2.3 Combined Construction Site Risk Level Matrix
Receiving Water Risk Sediment Risk
Low Medium High
Low Risk Level 1 Risk Level 2 Risk Level 2
High Risk Level 2 Risk Level 2 Risk Level 3
Based on the Risk Level a project falls under, different sets of regulatory requirements are applied
to the site. The main difference between Risk Levels 1, 2, and 3 are the numeric effluent
standards. In Risk Level 1, there are no numeric effluent standard requirements, as it is
considered a low Sediment Risk and low Receiving Water Risk (see matrix above). Instead,
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 6
narrative effluent limits are prescribed. In Risk Level 2, Numeric Action Levels (NALs) of pH
between 6.5-8.5 and turbidity below 250 NTU are prescribed in addition to the narrative
effluent limitations found in Risk Level 1 requirements. Should the NAL be exceeded during a
storm event, the discharger is required to immediately determine the source associated with the
exceedance and to implement corrective actions if necessary to mitigate the exceedance. For
a Risk Level 3 site, Numeric Effluent Limits (NELs) are applied in addition to the narrative and
numeric effluent standards prescribed for a Risk Level 2 site. Risk Level 3 dischargers are subject
to a pH NEL of 6.0-9.0 and a turbidity NEL of 500 NTU. Once an NEL is exceeded, the
construction site is considered in violation of the General Permit
2.3.1. Site Sediment Risk
Sediment risk from a project site is determined utilizing a derivative of the Revised Universal Soil
Loss Equation (RUSLE), a model developed by the US Department of Agriculture (USDA) and is
utilized by the US EPA for estimating rates of soil loss at construction sites during rain events.
Utilizing RUSLE, the sediment risk for the project site is thus determined by the following
equation:
A = (R)(K)(LS)(C)(P)
Where: A = rate of sheet and rill erosion, in tons/acre
R = rainfall-runoff erosivity factor
K = soil erodibility factor
LS = length-slope factor
C = cover factor (erosion controls)
P = management operations & support practices
(sediment controls)
The General Permit provides the following procedure for determining the RUSLE equation
factors for construction sites:
R-Factor: Analyses of data indicated that when factors other than rainfall are held
constant, soil loss is directly proportional to a rainfall factor composed of total storm
kinetic energy (E) times the maximum 30-min intensity (I30).1 The numerical value of R
is the average annual sum of EI30 for storm events during a rainfall record of at least
22 years. "Isoerodent" maps were developed based on R-values calculated for more
than 1,000 locations in the Western U.S. The maps may be utilized to determine the
Standard Risk Assessment, and have been included in Appendix 1 of the General Permit
(Appendix A of this SWPPP). A hand-calculation may also be utilized to determine the
site’s R-Factor, either by utilizing the methodology described in USDA’s Agricultural
Handbook 703, Predicting soil erosion by water: A guide to conservation planning with
the Revised Universal Soil Loss Equation (RUSLE), or the EPA’s R-value Risk Calculator
(available at
http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm).
1 United States Department of Agriculture (USDA). Predicting Rainfall Erosion Losses A Guide to Conservation
Planning. Agriculture Handbook 537. December 1978.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 7
K-Factor: The soil-erodibility factor K represents: (1) susceptibility of soil or surface
material to erosion, (2) transportability of the sediment, and (3) the amount and rate of
runoff given a particular rainfall input, as measured under a standard condition. The
site-specific K-factor may be determined using the nomograph method as shown in
Appendix 1 of the General Permit based on a particle-size analysis (ASTM D-422)
performed for the soils at the project site.
LS Factor: The effect of topography on erosion is accounted for by the LS factor, which
combines the effects of a hillslope-length factor, L, and a hillslope-gradient factor, S.
Generally speaking, as hillslope length and/or hillslope gradient increase, soil loss
increases. As hillslope length increases, total soil loss and soil loss per unit area increase
due to the progressive accumulation of runoff in the downslope direction. As the
hillslope gradient increases, the velocity and erosivity of runoff increases. The weighted
average LS factor may be determined using the LS Table located in Appendix 1 of the
General Permit (Appendix A of this SWPPP).
Alternatively, K and LS factors can be derived from the color map included in Appendix 1 of the
General Permit (Appendix A of this SWPPP). This alternative method is termed the GIS Map
Method. The map is a geographical representation of combined K and LS factors for the State
of California.
C-Factor: Cover factor based on erosion controls. Assumed to equal 1.0 to simulate
bare ground conditions. The implementation of erosion control measures for the
proposed project during construction will reduce the C-Factor to less than 1.0, thereby
reducing the erosion potential.
P-Factor: Management operations and support practices for sediment controls.
Assumed to equal 1.0 to simulate bare ground conditions. The implementation of
sediment control measures for the proposed project during construction will reduce the
P-factor to less than 1.0, thereby reducing the sediment loss potential.
With both the C-Factor and P-Factor set at 1.0 to simulate bare ground conditions rather than
utilizing values to simulate conditions where construction is taking place, sediment risk is
condensed to multiplying R, K, and LS factors from RUSLE. The resultant risk of soil loss (A),
measured in tons per acre, is then categorized as Low, Medium, or High based on the following
breakdown:
A < 15 tons/acre = Low Sediment Risk
A > 15 and < 75 tons/acre = Medium Sediment Risk
A > 75 tons/acre = High Sediment Risk
To determine the Sediment Risk for the Poinsettia Community Park project, the GIS Map Method
was utilized. Table 2.4 summarizes the results of the Sediment Risk Analysis performed for the
project. Supporting details and calculations are provided in Appendix C.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 8
Table 2.4 Sediment Risk Factor Summary
Parameter Method Used Result
R Factor EPA Calculator 34.83
K Factor GIS Map Method 0.2
LS Factor GIS Map Method 2.1465
Watershed Erosion Estimate (in tons/acre) 14.9525
Therefore, the Project’s Sediment Risk is Low.
2.3.2. Receiving Water Risk
The second risk factor in performing a Risk Assessment is Receiving Water Risk. The Receiving
Water Risk is based on whether or not the project site drains to a sediment-sensitive water body.
The General Permit identifies a High Receiving Water Risk if the project drains to a receiving
water body that meets at least one of the following characteristics:
The disturbed area discharges (either directly or indirectly) to a 303(d)-listed water body
impaired by sediment.
The disturbed area discharges to a water body that has a US EPA-approved TMDL
implementation plan for sediment.
The disturbed area discharges to a water body with designated beneficial uses of
SPAWN, COLD, & MIGRATORY per the region’s Basin Plan.
If the project does not discharge to a water body that meets one of the above categories, it is
considered a Low Receiving Water Risk.
The project does not meet any of the above criteria. Therefore, the Project’s Receiving Water
Risk is Low.
2.3.3. Risk Determination
The resultant Risk Level for the Poinsettia Community Park project is Risk Level 1.
Risk Level 1 requirements are outlined in the General Permit, included as Appendix A of this
SWPPP.
2.4. CONSTRUCTION SCHEDULE
This SWPPP shall be implemented concurrently with the commencement of soil disturbing
activities at the project site. Grading is anticipated to begin January 8, 2018. It is estimated
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 9
that the project will be completed January 18, 2019. The construction activity schedule for the
Poinsettia Community Park project is provided in Appendix H of this SWPPP. A schedule for
BMP implementation is also included in Appendix H.
2.5. POTENTIAL CONSTRUCTION SITE POLLUTANT SOURCES
No change.
2.6. IDENTIFICATION OF NON-STORM WATER DISCHARGES
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 10
3. BEST MANAGEMENT PRACTICES (BMPS)
No change.
3.1. SCHEDULE FOR BMP IMPLEMENTATION
No change.
3.2. SWPPP EXHIBITS
No change.
3.3. EROSION CONTROL AND SEDIMENT CONTROL
Table 3.1 Erosion Control BMPs
CASQA BMP
No. & Name Used? Description
EC-1
Scheduling
No
Change
No Change
EC-2
Preservation of
Existing Vegetation
No
Change No Change
EC-3
Hydraulic Mulch
No
Change No Change
EC-4
Hydroseeding
No
Change No Change
EC-5
Soil Binders
No
Change
No Change
EC-6
Straw Mulch
No
Change No Change
EC-7
Geotextiles and
Mats
No
Change No Change
EC-8
Wood Mulch
No
Change No Change
EC-9
Earth Dikes &
Drainage Swales
No
Change
No Change
EC-10
Velocity Dissipation
Devices
No
Change No Change
EC-11
Slope Drains
No No proposed slope drains as temporary BMPs for the Poinsettia Park
site.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 11
CASQA BMP
No. & Name Used? Description
EC-12
Streambank
Stabilization
No
Change No Change
EC-13
(reserved)
No Change No Change
EC-14
Compost Blankets
No
Change
No Change
EC-15
Soil Preparation/
Roughening
No
Change No Change
EC-16
Non-Vegetative
Stabilization
No
Change No Change
3.4. NON-STORM WATER AND MATERIAL MANAGEMENT
No change.
3.5. POST-CONSTRUCTION STORM WATER MANAGEMENT MEASURES
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 12
4. BMP INSPECTION, MAINTENANCE, AND
RAIN EVENT ACTION PLANS (REAPS)
4.1. BMP INSPECTION AND MAINTENANCE
No change.
4.2. RAIN EVENT ACTION PLANS
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 13
5. TRAINING
5.1. OVERVIEW
No change.
5.2. TRAINING REQUIREMENTS
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 14
6. RESPONSIBLE PARTIES AND OPERATORS
6.1. RESPONSIBLE PARTIES
No change.
6.2. CONTRACTOR LIST
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 15
7. CONSTRUCTION SITE MONITORING PROGRAM (CSMP)
7.1. PURPOSE
No change.
7.2. APPLICABILITY OF PERMIT REQUIREMENTS
No change.
7.3. NUMERIC ACTION LEVELS, EFFLUENT LIMITATIONS, AND DISCHARGE
PROHIBITIONS
No change.
7.4. SAFETY
No change.
7.5. VISUAL MONITORING (INSPECTIONS)
No change.
7.6. WATER QUALITY SAMPLING AND ANALYSIS
No change.
7.7. WATERSHED MONITORING OPTION
No change.
7.8. QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC)
No change.
7.9. REPORTING REQUIREMENTS AND RECORDS RETENTION
No change.
7.10. ACTIVE TREATMENT SYSTEMS (ATS) REQUIREMENTS
No change.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 16
ATTACHMENT 1
REVISED SHEET 2 OF APPENDIX B2
SWPPP WALL MAP
2
THIS SWPPP WALL MAP MUST BE POSTED IN CONSTRUCTION TRAILER AT ALL TIMES
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2017-10-16; 02:23pm, Drawing Title: Attachment 1 - Revised Appendix B2 - SWPPP Wall Map 2.dwg, User ID: esmith
4
0 10 20 40
1" = 20'-0"SCALE :
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 17
ATTACHMENT 2
REVISED APPENDIX B3
EC PLAN
EROSION CONTROL NOTESEROSION CONTROL LEGEND15C2.1491-44605510201" = 10'-0"SCALE :0KEY MAPN.T.S.C-1.4C-2.3C-1.3C-2.2C-1.2C-2.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comPOINSETTIA COMMUNITY PARKKWKKSDG PROJECT NO: 15-405Plot Date: 2017-10-12; 01:52pm, Drawing Title: 1440-001gr-c2.1ec.dwg, User ID: Kevin Wei
72JTB, JJPLT DATE: 10/11/2017 C-1.5C-2.4N
EROSION CONTROL NOTESEROSION CONTROL LEGEND16C2.2491-4460501020401" = 20'-0"SCALE :KEY MAPN.T.S.C-1.4C-2.3C-1.3C-2.2C-1.2C-2.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comPOINSETTIA COMMUNITY PARKKWKKSDG PROJECT NO: 15-405Plot Date: 2017-10-12; 01:53pm, Drawing Title: 1440-001gr-c2.2ec.dwg, User ID: Kevin Wei
72JTB, JJPLT DATE: 10/11/2017 C-1.5C-2.4PO
EROSION CONTROL NOTESEROSION CONTROL LEGEND17C2.3491-4460501020401" = 20'-0"SCALE :KEY MAPN.T.S.C-1.4C-2.3C-1.3C-2.2C-1.2C-2.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comPOINSETTIA COMMUNITY PARKKWKKSDG PROJECT NO: 15-405Plot Date: 2017-10-12; 01:53pm, Drawing Title: 1440-001gr-c2.3ec.dwg, User ID: Kevin Wei
72JTB, JJPLT DATE: 10/11/2017 C-1.5C-2.4RQS
EROSION CONTROL NOTESEROSION CONTROL LEGEND491-4460501020401" = 20'-0"SCALE :510201" = 10'-0"SCALE :0KEY MAPN.T.S.C-1.4C-2.3C-1.3C-2.2C-1.2C-2.16390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.comPOINSETTIA COMMUNITY PARKKWKKSDG PROJECT NO: 15-405Plot Date: 2017-10-12; 01:53pm, Drawing Title: 1440-001gr-c2.4ec.dwg, User ID: Kevin Wei
72JTB, JJPLT DATE: 10/11/2017 C-1.5C-2.418C2.4
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 18
ATTACHMENT 3
REVISED APPENDIX B4
SAMPLING LOCATIONS PLAN
1
POINSETTIA COMMUNITY PARK
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
Plot Date: 2017-10-16; 02:28pm, Drawing Title: Attachment 3 - Appendix B4 - Sampling Locations Plan.dwg, User ID: esmith
1
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 19
ATTACHMENT 4
REVISED APPENDIX B5
SWQMP EXHIBIT
DMA 10.51 ACDRAINS TO BMPBMP 1815 SFDMA 2.3230 SFDE MINIMISDMA 2.40.71 ACSELF-MITIGATINGDMA 30.16 ACDRAINS TO BMPDMA 40.37 ACDRAINS TO BMPBMP 3550 SFBMP 41,420 SFPOINSETTIA COMMUNITY PARKDMA AND HYDROMODIFICATION MANAGEMENT EXHIBITGNIREENEIGN6390 Greenwich Dr., Suite 170, San Diego, California 92122tel 858.554.1500 fax 858.597.0335 www.fuscoe.comSDG PROJECT NO: 15-406PLT DATE: 11/16/16 2hniLc.ACwww.scpeelthoAo4NV ,219idtesgn.c1-632}91138,im{ed6319felimiscaZ3m62498-632}716{9 2xS11i 9DeAvenu , San iego, CAth 2101iSu te 005,11LEGENDCONTOURSTORM DRAINDRAINAGE MANAGEMENT AREAPERVIOUS RESILIENT SURFACINGPERVIOUS PAVEMENTIMPERVIOUS PAVEMENTBIOFILTRATION W/ PARTIAL RETENTIONSITE DATAUNDERLYING HYDROLOGIC SOIL GROUP: DDEPTH TO GROUNDWATER: >20'EXISTING HYDROLOGIC FEATURES ONSITE: NONECRITICAL COARSE SEDIMENT YIELD AREAS: NONEBMP 3: BIOFILTRATION BMP 4: BIOFILTRATION + CISTERNDMA AND BMP TABLEKEY MAPN.T.S.BMP 1: BIOFILTRATION W/ PARTIAL RETENTION
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 20
ATTACHMENT 5
REVISED RISK CALCULATIONS
Entry
34.83
0.2
2.1465
Watershed Erosion Estimate (=RxKxLS) in tons/acre
Site Sediment Risk Factor
Low Sediment Risk: < 15 tons/acre
Medium Sediment Risk: >=15 and <75 tons/acre
High Sediment Risk: >= 75 tons/acre
K Factor Value
LS Factor Value
Low
C) LS Factor (weighted average, by area, for all slopes)
The soil-erodibility factor K represents: (1) susceptibility of soil or surface material to erosion, (2) transportability of the
sediment, and (3) the amount and rate of runoff given a particular rainfall input, as measured under a standard condition.
Fine-textured soils that are high in clay have low K values (about 0.05 to 0.15) because the particles are resistant to
detachment. Coarse-textured soils, such as sandy soils, also have low K values (about 0.05 to 0.2) because of high
infiltration resulting in low runoff even though these particles are easily detached. Medium-textured soils, such as a silt
loam, have moderate K values (about 0.25 to 0.45) because they are moderately susceptible to particle detachment and
they produce runoff at moderate rates. Soils having a high silt content are especially susceptible to erosion and have high
K values, which can exceed 0.45 and can be as large as 0.65. Silt-size particles are easily detached and tend to crust,
producing high rates and large volumes of runoff. Use Site-specific data must be submitted.
The effect of topography on erosion is accounted for by the LS factor, which combines the effects of a hillslope-length
factor, L, and a hillslope-gradient factor, S. Generally speaking, as hillslope length and/or hillslope gradient increase, soil
loss increases. As hillslope length increases, total soil loss and soil loss per unit area increase due to the progressive
accumulation of runoff in the downslope direction. As the hillslope gradient increases, the velocity and erosivity of runoff
increases. Use the LS table located in separate tab of this spreadsheet to determine LS factors. Estimate the weighted
LS for the site prior to construction.
14.952519
Site-specific K factor guidance
LS Table
Sediment Risk Factor Worksheet
A) R Factor
R Factor Value
B) K Factor (weighted average, by area, for all site soils)
Analyses of data indicated that when factors other than rainfall are held constant, soil loss is directly proportional to a
rainfall factor composed of total storm kinetic energy (E) times the maximum 30-min intensity (I30) (Wischmeier and
Smith, 1958). The numerical value of R is the average annual sum of EI30 for storm events during a rainfall record of at
least 22 years. "Isoerodent" maps were developed based on R values calculated for more than 1000 locations in the
Western U.S. Refer to the link below to determine the R factor for the project site.
http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm
1
2
3
4
5
6
7
8
9
10
11
ABC
Receiving Water (RW) Risk Factor Worksheet Entry Score
A. Watershed Characteristics yes/no
A.1. Does the disturbed area discharge (either directly or indirectly) to a 303(d)-listed
waterbody impaired by sediment? For help with impaired waterbodies please check the
attached worksheet or visit the link below:
2006 Approved Sediment-impared WBs Worksheet
http://www.waterboards.ca.gov/water_issues/programs/tmdl/303d_lists2006_epa.shtml
OR
A.2. Does the disturbed area discharge to a waterbody with designated beneficial uses of
SPAWN & COLD & MIGRATORY?
http://www.ice.ucdavis.edu/geowbs/asp/wbquse.asp
No Low
1
2
3
4
5
6
7
8
9
10
11
AB C D E
Low Medium High
Low Level 1
High Level 3
Project Sediment Risk:Low 1
Project RW Risk:Low 1
Project Combined Risk:Level 1
Combined Risk Level Matrix
Sediment Risk
Receiving Water RiskLevel 2
Level 2
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) AMENDMENT
POINSETTIA COMMUNITY PARK
CARLSBAD, CA OCTOBER 2017
FUSCOE ENGINEERING, INC. 21
ATTACHMENT 6
REVISED APPENDIX G
COMPUTATION SHEET FOR
DETERMINING
RUNOFF COEFFICIENTS
Computation Sheet for Determining Runoff Coefficients
Total Site Area = 1.49 (A)
Existing Site Conditions
Impervious Site Area1 = 0 (B)
Impervious Site Area Runoff Coefficient 2, 4 = 0.95 (C)
Pervious Site Area3 = 1.49 (D)
Pervious Site Area Runoff Coefficient4 = 0.35 (E)
Existing Site Area Runoff Coefficient
(A)
EDCB = 0.35 (F)
Proposed Site Conditions (after construction)
Impervious Site Area1 = 0.43 (G)
Impervious Site Area Runoff Coefficient 2, 4 = 0.95 (H)
Pervious Site Area3 = 1.06 (I)
Pervious Site Area Runoff Coefficient4 = 0.25 (J)
Proposed Site Area Runoff Coefficient
(A)
JIHG = .45 (K)
1. Includes paved areas, areas covered by buildings, and other impervious surfaces.
2. Use 0.95 unless lower or higher runoff coefficient can be verified.
3. Includes areas of vegetation, most unpaved or uncovered soil surfaces, and other pervious
areas.
4. See the table on the following page for typical C values.
Run-on Discharges
The work areas at Poinsettia Park accept run-on from two storm drain systems which convey
flows from offsite areas. A storm drain system discharges to the surface at the southwest
corner of Basin A. This storm drain system conveys flows from the parking lot and other park
facilities to the north and east. This runoff is then conveyed to Basin B through a dual 24” pipe
culvert, and flows through Basin B in a concrete-lined swale. Based on record drawing, the
100-year flowrate in this storm drain system is 34.3 cfs. A second offsite storm drain system
enters in the southwesterly portion of Basin B and again flows through a concrete-lined swale.
This storm drain conveys flows from the park areas to the south and east, with a 100-year flow
rate of 19.1 cfs per record drawings.
Figure 819.2A
Runoff Coefficients for Undeveloped Areas
Watershed Types
Extreme High Normal Low
Relief .28 -.35
Steep, rugged terrain
with average slopes
above 30%
.20 -.28
Hilly, with average
slopes of 10 to 30%
.14 -.20
Rolling, with average
slopes of 5 to 10%
.08 -.14
Relatively flat land,
with average slopes
of 0 to 5%
Soil
Infiltration .12 -.16
No effective soil
cover, either rock or
thin soil mantle of
negligible
infiltration capacity
.08 -.12
Slow to take up
water, clay or
shallow loam soils of
low infiltration
capacity, imperfectly
or poorly drained
.06 -.08
Normal; well drained
light or medium
textured soils, sandy
loams, silt and silt
loams
.04 -.06
High; deep sand or
other soil that takes
up water readily,
very light well
drained soils
Vegetal
Cover .12 -.16
No effective plant
cover, bare or very
sparse cover
.08 -.12
Poor to fair; clean
cultivation crops, or
poor natural cover,
less than 20% of
drainage area over
good cover
.06 -.08
Fair to good; about
50% of area in good
grassland or wood-
land, not more than
50% of area in
cultivated crops
.04 -.06
Good to excellent;
about 90% of
drainage area in
good grassland,
woodland or
equivalent cover.
Surface
Storage .10 -.12
Negligible surface
depression few and
shallow;
drainageways steep
and small, no
marshes
.08 -.10
Low; well defined
system of small
drainageways; no
ponds or marshes
.06 -.08
Normal;
considerable surface
depression storage;
lakes and pond
marshes
.04 -.06
High; surface stor-
age, high; drainage
system not sharply
defined; large flood
plain storage or large
number of ponds or
marshes.
Given An undeveloped watershed consisting of; Solution:
1) rolling terrain with average slopes of 5%, Relief 0.14
2) clay type soils, Soil Infiltration 0.08
3) good grassland area, and Vegetal Cover 0.04
4) normal surface depressions. Surface Storage 0.06
C= 0.32
Find The runoff coefficient, C, for the above watershed.
Table 819.2B
Runoff Coefficients for
Developed Areas
Type of Drainage Area Runoff
Coefficient
Business:
Downtown areas 0.70 - 0.95
Neighborhood areas 0.50 - 0.70
Residential:
Single-family areas 0.30 - 0.50
Multi-units, detached 0.40 - 0.60
Multi-units, attached 0.60 - 0.75
Suburban 0.25 - 0.40
Apartment dwelling areas 0.50 - 0.70
Industrial:
Light areas 0.50 - 0.80
Heavy areas 0.60 - 0.90
Parks, cemeteries: 0.10 - 0.25
Playgrounds: 0.20 - 0.40
Railroad yard areas: 0.20 - 0.40
Unimproved areas: 0.10 - 0.30
Lawns:
Sandy soil, flat, 2% 0.05 - 0.10
Sandy soil, average, 2-7% 0.10 - 0.15
Sandy soil, steep, 7% 0.15 - 0.20
Heavy soil, flat, 2% 0.13 - 0.17
Heavy soil, average, 2-7% 0.18 - 0.25
Heavy soil, steep, 7% 0.25 - 0.35
Streets:
Asphaltic 0.70 - 0.95
Concrete 0.80 - 0.95
Brick 0.70 - 0.85
Drives and walks 0.75 - 0.85
Roofs: 0.75 - 0.95
Order
XVI. ANNUAL REPORTING REQUIREMENTS
A. All dischargers shall prepare and electronically submit an Annual Report
no later than September 1 of each year.
B. The discharger shall certify each Annual Report in accordance with the Special Provisions.
C. The discharger shall retain an electronic or paper copy of each Annual
Report for a minimum of three years after the date the annual report is
filed.
D. The discharger shall include storm water monitoring information in the
Annual Report consisting of:
1. a summary and evaluation of all sampling and analysis results, including copies of laboratory reports;
2. the analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results that
are less than the method detection limit shall be reported as "less than the method detection limit");
3. a summary of all corrective actions taken during the compliance year;
4. identification of any compliance activities or corrective actions that were not implemented;
5. a summary of all violations of the General Permit;
6. the names of individual(s) who performed the facility inspections, sampling, visual observation (inspections), and/or measurements;
7. the date, place, time of facility inspections, sampling, visual
observation (inspections), and/or measurements, including
precipitation (rain gauge); and
8. the visual observation and sample collection exception records and
reports specified in Attachments C, D, and E.
E. The discharger shall provide training information in the Annual Report consisting of:
1. documentation of all training for individuals responsible for all activities
associated with compliance with this General Permit;
2009-0009-DWQ 40 September 02, 2009
Order
2009-0009-DWQ 41 September 02, 2009
2. documentation of all training for individuals responsible for BMP
installation, inspection, maintenance, and repair; and
3. documentation of all training for individuals responsible for overseeing,
revising, and amending the SWPPP.
ANNUAL REPORT
Order No. 2009-0009-DWQ Section XVI requires that all dischargers prepare and submit an Annual
Report no later than September 1 each year. The Annual Report contains a summary of all storm
water monitoring information, compliance actions, training documentation, and other information
pertaining to permit compliance from the reporting year (July 1 through June 30).
The reports are prepared and submitted electronically via SMARTS and certified by the Legally
Responsible Person (LRP) in accordance with the Permit Special Provisions. In addition, a paper copy
of each Annual Report shall be retained for a minimum of three (3) years after the report is filed.
Though the report information is entered and submitted electronically through SMARTS, below is a
summary of the questions and information required to be entered as part of the Annual Report.
A. SITE OWNER INFORMATION
B. SITE INFORMATION
C. STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
C.1. Has a SWPPP been prepared by a Qualified SWPPP Developer (QSD) for the construction
project?
C.2. Does the SWPPP include a Construction Site Monitoring Program (CSMP) section/element?
C.3. Are these documents kept onsite?
D. GOOD SITE MANAGEMENT “i.e. HOUSEKEEPING”
D.1. Were required good site management "i.e.housekeeping" measures for construction materials
implemented on-site in accordance with CGP and SWPPP?
D.1.a. Was an inventory of the products used and/or expected to be used conducted?
D.2 Were required good site management "i.e.housekeeping" measures for waste management
implemented on-site in accordance with CGP and SWPPP?
D.2.a. Is there a spill response and implementation element of the SWPPP?
D.3. Were required good site management "i.e.housekeeping" measures for vehicle storage and
maintenance implemented on-site in accordance with CGP and SWPPP?
D.4. Were required good site management "i.e.housekeeping" measures for landscape materials
implemented on-site in accordance with CGP and SWPPP?
D.5. Was a list of potential pollutant sources developed?
D.6. Were good site management "housekeeping" measures to control air deposition of site
materials and from site operations implemented on-site?
E. NON-STORM WATER MANAGEMENT
E.1. Were measures to control all non-storm water discharges during construction implemented?
E.2. Were vehicles washed in such a manner as to prevent non-storm water discharges to surface
waters or to MS4 drainage systems?
E.3. Were streets cleaned in such a manner as to prevent unauthorized non-storm water discharges
from reaching surface waters or MS4 drainage systems?
F. EROSION CONTROLS
F.1. Were required erosion controls implemented on-site in accordance with CGP and SWPPP?
G. SEDIMENT CONTROLS
G.1. Were required sediment controls implemented on-site in accordance with CGP and SWPPP?
G.2. Were immediate access roads inspected on a daily basis?
H. RUN-ON AND RUN-OFF CONTROLS
H.1. Was all site run-on and run-off effectively managed?
H.2. Did Risk level 2 and 3 dischargers monitor and report run-on from surrounding areas if there
was reason to believe run-on may have contributed to an NAL or NEL exceedance?
I. RAIN EVENT ACTION PLAN (REAP)
I.1. Were REAPs developed 48 hours prior to all likely precipitation events (50% or greater
probability of producing precipitation)?
I.2. Did the REAPs developed meet the minimum criteria listed in the CGP?
J. INSPECTION, MAINTENANCE AND REPAIR
J.1. Were all site inspections, maintenance, and repairs performed or supervised by a Qualified
SWPPP Practitioner (QSP)?
J.2. Were site inspections conducted weekly and at least once each 24-hour period during
extended storm events?
J.3. Were post rain event inspections conducted?
J.4. Do your inspection forms/ checklists meet the minimum criteria listed in the CGP?
J.5. During any site inspection was BMP maintenance or repairs required? (if YES, provide
information)
J.6. If BMP maintenance/repair or design change was needed, did implementation begin within 72
hours?
K. VISUAL MONITORING
K.1. Within 2 business days (48 hours) after each qualified rain event, were visual inspections
conducted in compliance with the CGP?
K.2. Were all storm water discharges that occurred from storage or containment systems visually
observed prior to discharge?
K.3. Were the time, date, and rain gauge reading recorded for each qualifying rain event?
K.4. Within 2 business days (48 hours) prior to each predicted rain event, were visual inspections
conducted in compliance with the CGP ?
K.5. Are all visual inspection records retained on-site?
L. WATER QUALITY SAMPLING AND ANALYSIS
L.1. How many qualifying storm events (producing precipitation of 0.5 inch or more at the time of
discharge) occurred this past reporting year?
L.2. How many qualifying storm events (producing precipitation of 0.5 inch or more at the time of
discharge) were sampled?
L.3. For the sampled events, did you collect three samples, at minimum (representative of the flow
and characteristics) each day of discharge per qualified event?
L.4. Were grab samples analyzed for pH and/or turbidity? (Analytical data must be entered in the
RAW DATA tab in SMARTS)?
L.5. Were Active Treatment System (ATS) effluent samples taken? (Applies to projects that deployed
ATS)
M. NON-STORM WATER DISCHARGE MONITORING
M.1. Were all drainage areas monitored for authorized/ unauthorized non-storm water discharges
quarterly?
M.2. Did visual observations indicate any authorized/ unauthorized non-storm water discharges?
(Complete Form 2)
M.3. Were effluent samples taken of the authorized/ unauthorized non-storm water discharge?
(Analytical data must be entered in the RAW DATA tab in SMARTS)
M.4. Were the effluent samples sent to a laboratory certified for such analyses by the State
Department of Health Services?
M.5. Were unauthorized non-storm water discharges eliminated?
N. NON-VISIBLE POLLUTANT MONITORING
N.1. Were any breaches, malfunctions, leakages, or spills observed during a visual inspection?
N.2. How many potential discharges of non-visible pollutants were identified?
N.3. For each discharge event (of non-visible pollutants), were samples collected in compliance with
the CGP? (Analytical data must be entered in the RAW DATA tab in SMARTS)
N.4. For each discharge event was a comparison sample collected (uncontaminated sample that
did not come into contact with the pollutant)? (Analytical data must be entered in the RAW
DATA tab in SMARTS)
O. WATERSHED MONITORING
O.1. Are you part of a qualified regional watershed-based monitoring program approved by the
Regional Water Board?
P. RECORDS
P.1. Are all records of all storm water monitoring information retained on-site?
Q. NAL EXCEEDANCES
Q.1. Were any Numeric Action Levels (NALs) exceeded?
Q.2. Were corrective actions taken to address the NAL exceedances? (if YES, provide information)
Q.3. Were analytical results from any/all NAL exceedances submitted electronically to the State
Water Board no later than 10 days after the conclusion of the storm event?
Q.4. Were any NAL Exceedance Reports submitted to the Regional Water Board?
R. (NOT APPLICABLE)
S. (NOT APPLICABLE)
T. TRAINING
T.1. Was a Qualified SWPPP Practitioner (QSP) in reasonable charge of SWPPP implementation?
T.2. Were all individuals conducting BMP installation, inspection, maintenance and repairs trained
appropriately?
T.3. Are complete training records kept on-site and available upon request?
U. AUTHORIZED NON-STORM WATER DISCHARGES (NSWD) DISCHARGED
U.1. Were any authorized NSWDs discharged observed from July-September?
U.2. Were any authorized NSWDs discharged observed from October-December?
U.3. Were any authorized NSWDs discharged observed from January-March?
U.4. Were any authorized NSWDs discharged observed from April-June?
If YES to any of the above, provide information below (Form 2).
Date/Time of observation
Discharge type (Authorized or Unauthorized)
Source and location of NSWD
Name of NSWD
Describe NSWD characteristics (at the NSWD source)
Describe NSWD characteristics (at the NSWD drainage area and discharge location)
Describe any revised or new BMPs and provide their implementation date.
V. UNAUTHORIZED NON-STORM WATER DISCHARGES (NSWD) DISCHARGED
V.1. Were any unauthorized NSWDs discharged observed from July-September?
V.2. Were any unauthorized NSWDs discharged observed from October-December?
V.3. Were any unauthorized NSWDs discharged observed from January-March?
V.4. Were any unauthorized NSWDs discharged observed from April-June?
If YES to any of the above, provide information below (Form 2).
Date/Time of observation
Discharge type (Authorized or Unauthorized)
Source and location of NSWD
Name of NSWD
Describe NSWD characteristics (at the NSWD source)
Describe NSWD characteristics (at the NSWD drainage area and discharge location)
Describe any revised or new BMPs and provide their implementation date.
FORM 3
Please enter a general summary of any BMP deficiencies identified for each quarter and the corrective
actions taken. Maximum up to 1000 characters.
July-September Quarter
October-December Quarter
January-March Quarter
April-June Quarter
DAILY AVERAGES SUMMARY
Data Summary for the Daily Averages of the Ad Hoc Reports associated with this Annual Report.
ATTACHMENTS
Attach current documents related to the SWARM Reports.
CERTIFICATION
Computation Sheet for Determining Runoff Coefficients
Total Site Area = 1.97 (A)
Existing Site Conditions
Impervious Site Area1 = 0 (B)
Impervious Site Area Runoff Coefficient 2, 4 = 0.95 (C)
Pervious Site Area3 = 1.97 (D)
Pervious Site Area Runoff Coefficient4 = 0.35 (E)
Existing Site Area Runoff Coefficient
(A)
EDCB = 0.35 (F)
Proposed Site Conditions (after construction)
Impervious Site Area1 = 0.17 (G)
Impervious Site Area Runoff Coefficient 2, 4 = 0.95 (H)
Pervious Site Area3 = 1.80 (I)
Pervious Site Area Runoff Coefficient4 = 0.25 (J)
Proposed Site Area Runoff Coefficient
(A)
JIHG = .31 (K)
1. Includes paved areas, areas covered by buildings, and other impervious surfaces.
2. Use 0.95 unless lower or higher runoff coefficient can be verified.
3. Includes areas of vegetation, most unpaved or uncovered soil surfaces, and other pervious
areas.
4. See the table on the following page for typical C values.
Run-on Discharges
The work areas at Poinsettia Park accept run-on from two storm drain systems which convey
flows from offsite areas. A storm drain system discharges to the surface at the southwest
corner of Basin A. This storm drain system conveys flows from the parking lot and other park
facilities to the north and east. This runoff is then conveyed to Basin B through a dual 24” pipe
culvert, and flows through Basin B in a concrete-lined swale. Based on record drawing, the
100-year flowrate in this storm drain system is 34.3 cfs. A second offsite storm drain system
enters in the southwesterly portion of Basin B and again flows through a concrete-lined swale.
This storm drain conveys flows from the park areas to the south and east, with a 100-year flow
rate of 19.1 cfs per record drawings.
Figure 819.2A
Runoff Coefficients for Undeveloped Areas
Watershed Types
Extreme High Normal Low
Relief .28 -.35
Steep, rugged terrain
with average slopes
above 30%
.20 -.28
Hilly, with average
slopes of 10 to 30%
.14 -.20
Rolling, with average
slopes of 5 to 10%
.08 -.14
Relatively flat land,
with average slopes
of 0 to 5%
Soil
Infiltration .12 -.16
No effective soil
cover, either rock or
thin soil mantle of
negligible
infiltration capacity
.08 -.12
Slow to take up
water, clay or
shallow loam soils of
low infiltration
capacity, imperfectly
or poorly drained
.06 -.08
Normal; well drained
light or medium
textured soils, sandy
loams, silt and silt
loams
.04 -.06
High; deep sand or
other soil that takes
up water readily,
very light well
drained soils
Vegetal
Cover .12 -.16
No effective plant
cover, bare or very
sparse cover
.08 -.12
Poor to fair; clean
cultivation crops, or
poor natural cover,
less than 20% of
drainage area over
good cover
.06 -.08
Fair to good; about
50% of area in good
grassland or wood-
land, not more than
50% of area in
cultivated crops
.04 -.06
Good to excellent;
about 90% of
drainage area in
good grassland,
woodland or
equivalent cover.
Surface
Storage .10 -.12
Negligible surface
depression few and
shallow;
drainageways steep
and small, no
marshes
.08 -.10
Low; well defined
system of small
drainageways; no
ponds or marshes
.06 -.08
Normal;
considerable surface
depression storage;
lakes and pond
marshes
.04 -.06
High; surface stor-
age, high; drainage
system not sharply
defined; large flood
plain storage or large
number of ponds or
marshes.
Given An undeveloped watershed consisting of; Solution:
1) rolling terrain with average slopes of 5%, Relief 0.14
2) clay type soils, Soil Infiltration 0.08
3) good grassland area, and Vegetal Cover 0.04
4) normal surface depressions. Surface Storage 0.06
C= 0.32
Find The runoff coefficient, C, for the above watershed.
Table 819.2B
Runoff Coefficients for
Developed Areas
Type of Drainage Area Runoff
Coefficient
Business:
Downtown areas 0.70 - 0.95
Neighborhood areas 0.50 - 0.70
Residential:
Single-family areas 0.30 - 0.50
Multi-units, detached 0.40 - 0.60
Multi-units, attached 0.60 - 0.75
Suburban 0.25 - 0.40
Apartment dwelling areas 0.50 - 0.70
Industrial:
Light areas 0.50 - 0.80
Heavy areas 0.60 - 0.90
Parks, cemeteries: 0.10 - 0.25
Playgrounds: 0.20 - 0.40
Railroad yard areas: 0.20 - 0.40
Unimproved areas: 0.10 - 0.30
Lawns:
Sandy soil, flat, 2% 0.05 - 0.10
Sandy soil, average, 2-7% 0.10 - 0.15
Sandy soil, steep, 7% 0.15 - 0.20
Heavy soil, flat, 2% 0.13 - 0.17
Heavy soil, average, 2-7% 0.18 - 0.25
Heavy soil, steep, 7% 0.25 - 0.35
Streets:
Asphaltic 0.70 - 0.95
Concrete 0.80 - 0.95
Brick 0.70 - 0.85
Drives and walks 0.75 - 0.85
Roofs: 0.75 - 0.95
BMP IMPLEMENTATION SCHEDULE
GRADING & LAND DEVELOPMENT PHASE
Project Name: Poinsettia Community Park
Activities Associated with Phase: (check all that apply)
Demolition Surveying Rock Crushing
Excavation Finish Grade Blasting
Rough Grade Soil Amendment(s): Soils Testing
Erosion & Sediment Control Equip. Maintenance/Fueling Other:
Clearing/Vegetation Removal Material Delivery & Storage
BMP Deployment: (check all that apply)
Erosion Control BMPs:
EC-1 Scheduling EC-7 Geotextiles & Mats EC-13 Reserved
EC-2 Protect Existing Vegetation EC-8 Wood Mulching EC-14 Compost Blankets
EC-3 Hydraulic Mulch* EC-9 Earth Dikes & Drainage
Swales
EC-15 Soil Preparation/
Roughening
EC-4 Hydroseeding* EC-10 Velocity Dissipation EC-16 Non-Vegetative
Stabilization EC-5 Soil Binders* EC-11 Slope Drains
EC-6 Straw Mulch* EC-12 Streambank Stabilization
Sediment Control BMPs:
SE-1 Silt Fence SE-6 Gravel Bag Berm SE-11 ATS
SE-2 Sediment Basin SE-7 Street Sweeping &
Vacuuming
SE-12 Temporary Silt Dike
SE-3 Sediment Trap SE-8 Sandbag Barrier SE-13 Compost Socks & Berms
SE-4 Check Dam SE-9 Straw Bale Barrier SE-14 Biofilter Bags
SE-5 Fiber Rolls SE-10 Storm Drain Inlet Protection
Tracking Control & Wind Erosion Control BMPs:
TC-1 Stabilized Entrance/Exit TC-2 Stabilized Roadway TC-3 Entrance/Outlet Tire Wash
WE-1 Wind Erosion Control
Non-Storm Water Management BMPs:
NS-1 Water Conservation NS-7 Potable Water/Irrigation NS-12 Concrete Curing
NS-2 Dewatering Operations NS-8 Vehicle & Equip. Cleaning NS-13 Concrete Finishing
NS-3 Paving & Grinding NS-9 Vehicle & Equip. Fueling NS-14 Material Use Over Water
NS-4 Temp. Stream Crossing NS-10 Vehicle & Equip. Maint. NS-15 Demo. Adj. to Water
NS-5 Clear Water Diversion NS-11 Pile Driving Operations NS-16 Temporary Batch Plants
NS-6 Illicit Connection/Discharge
Materials & Waste Management BMPs:
WM-1 Material Delivery/Storage WM-5 Solid Waste Management WM-8 Concrete Waste Mgmt.
WM-2 Material Use WM-6 Hazardous Waste Mgmt. WM-9 Sanitary/Septic Waste
WM-3 Stockpile Management WM-7 Contaminated Soil
Management
WM-10 Liquid Waste
Management WM-4 Spill Prevention & Control
Note: Refer to the SWPPP Exhibits/Erosion Control Plans for BMP locations by construction phase. Not all minimum requirements may be
applicable to every project.
* The Contractor shall select one of the five measures or a combination thereof to stabilize inactive areas (areas of construction activity that
have been disturbed but are not currently being worked on and are not scheduled to be re-disturbed for at least 14 days)
Minimum BMP
BMP IMPLEMENTATION SCHEDULE
STREETS & UTILITIES
Project Name: Poinsettia Community Park
Activities Associated with Phase: (check all that apply)
Finish Grade Curb/Gutter Concrete Pour Material Delivery & Storage
Utility Install: Water/Sewer/Gas Masonry/Retaining Walls Equip. Maintenance/Fueling
Storm Drain Installation Paving Operations Other:
BMP Deployment: (check all that apply)
Erosion Control BMPs:
EC-1 Scheduling EC-7 Geotextiles & Mats EC-13 Reserved
EC-2 Protect Existing Vegetation EC-8 Wood Mulching EC-14 Compost Blankets
EC-3 Hydraulic Mulch* EC-9 Earth Dikes & Drainage
Swales
EC-15 Soil Preparation/
Roughening
EC-4 Hydroseeding* EC-10 Velocity Dissipation EC-16 Non-Vegetative
Stabilization EC-5 Soil Binders* EC-11 Slope Drains
EC-6 Straw Mulch* EC-12 Streambank Stabilization
Sediment Control BMPs:
SE-1 Silt Fence SE-6 Gravel Bag Berm SE-11 ATS
SE-2 Sediment Basin SE-7 Street Sweeping &
Vacuuming
SE-12 Temporary Silt Dike
SE-3 Sediment Trap SE-8 Sandbag Barrier SE-13 Compost Socks & Berms
SE-4 Check Dam SE-9 Straw Bale Barrier SE-14 Biofilter Bags
SE-5 Fiber Rolls SE-10 Storm Drain Inlet Protection
Tracking Control & Wind Erosion Control BMPs:
TC-1 Stabilized Entrance/Exit TC-2 Stabilized Roadway TC-3 Entrance/Outlet Tire Wash
WE-1 Wind Erosion Control
Non-Storm Water Management BMPs:
NS-1 Water Conservation NS-7 Potable Water/Irrigation NS-12 Concrete Curing
NS-2 Dewatering Operations NS-8 Vehicle & Equip. Cleaning NS-13 Concrete Finishing
NS-3 Paving & Grinding NS-9 Vehicle & Equip. Fueling NS-14 Material Use Over Water
NS-4 Temp. Stream Crossing NS-10 Vehicle & Equip. Maint. NS-15 Demo. Adj. to Water
NS-5 Clear Water Diversion NS-11 Pile Driving Operations NS-16 Temporary Batch Plants
NS-6 Illicit Connection/Discharge
Materials & Waste Management BMPs:
WM-1 Material Delivery/Storage WM-5 Solid Waste Management WM-8 Concrete Waste Mgmt.
WM-2 Material Use WM-6 Hazardous Waste Mgmt. WM-9 Sanitary/Septic Waste
WM-3 Stockpile Management WM-7 Contaminated Soil
Management
WM-10 Liquid Waste
Management WM-4 Spill Prevention & Control
Note: Refer to the SWPPP Exhibits/Erosion Control Plans for BMP locations by construction phase. Not all minimum requirements may be
applicable to every project.
Minimum BMP
BMP IMPLEMENTATION SCHEDULE
VERTICAL CONSTRUCTION
Project Name: Poinsettia Community Park
Activities Associated with Phase: (check all that apply)
Framing Electrical Painting
Masonry Plumbing Stucco
Drywall/Interior Walls HVAC Tile
Exterior Siding Insulation Landscaping & Irrigation
Flooring Roofing Equip. Maintenance/Fueling
Carpentry Concrete Forms/Foundations Other:
BMP Deployment: (check all that apply)
Erosion Control BMPs:
EC-1 Scheduling EC-7 Geotextiles & Mats EC-13 Reserved
EC-2 Protect Existing Vegetation EC-8 Wood Mulching EC-14 Compost Blankets
EC-3 Hydraulic Mulch* EC-9 Earth Dikes & Drainage
Swales
EC-15 Soil Preparation/
Roughening
EC-4 Hydroseeding* EC-10 Velocity Dissipation EC-16 Non-Vegetative
Stabilization EC-5 Soil Binders* EC-11 Slope Drains
EC-6 Straw Mulch* EC-12 Streambank Stabilization
Sediment Control BMPs:
SE-1 Silt Fence SE-6 Gravel Bag Berm SE-11 ATS
SE-2 Sediment Basin SE-7 Street Sweeping &
Vacuuming
SE-12 Temporary Silt Dike
SE-3 Sediment Trap SE-8 Sandbag Barrier SE-13 Compost Socks & Berms
SE-4 Check Dam SE-9 Straw Bale Barrier SE-14 Biofilter Bags
SE-5 Fiber Rolls SE-10 Storm Drain Inlet Protection
Tracking Control & Wind Erosion Control BMPs:
TC-1 Stabilized Entrance/Exit TC-2 Stabilized Roadway TC-3 Entrance/Outlet Tire Wash
WE-1 Wind Erosion Control
Non-Storm Water Management BMPs:
NS-1 Water Conservation NS-7 Potable Water/Irrigation NS-12 Concrete Curing
NS-2 Dewatering Operations NS-8 Vehicle & Equip. Cleaning NS-13 Concrete Finishing
NS-3 Paving & Grinding NS-9 Vehicle & Equip. Fueling NS-14 Material Use Over Water
NS-4 Temp. Stream Crossing NS-10 Vehicle & Equip. Maint. NS-15 Demo. Adj. to Water
NS-5 Clear Water Diversion NS-11 Pile Driving Operations NS-16 Temporary Batch Plants
NS-6 Illicit Connection/Discharge
Materials & Waste Management BMPs:
WM-1 Material Delivery/Storage WM-5 Solid Waste Management WM-8 Concrete Waste Mgmt.
WM-2 Material Use WM-6 Hazardous Waste Mgmt. WM-9 Sanitary/Septic Waste
WM-3 Stockpile Management WM-7 Contaminated Soil
Management
WM-10 Liquid Waste
Management WM-4 Spill Prevention & Control
Note: Refer to the SWPPP Exhibits/Erosion Control Plans for BMP locations by construction phase. Not all minimum requirements may be
applicable to every project.
Minimum BMP
BMP IMPLEMENTATION SCHEDULE
FINAL LANDSCAPING & SITE STABILIZATION
Project Name: Poinsettia Community Park
Activities Associated with Phase: (check all that apply)
Stabilization Drainage Inlet Stencils Storage Yard/Material Removal
Landscape Installation Irrigation System Testing Erosion & Sediment Control BMP
Removal Vegetation Establishment Inlet Filtration
Permanent Water Quality Features Other:
BMP Deployment: (check all that apply)
Erosion Control BMPs:
EC-1 Scheduling EC-7 Geotextiles & Mats EC-13 Reserved
EC-2 Protect Existing Vegetation EC-8 Wood Mulching EC-14 Compost Blankets
EC-3 Hydraulic Mulch* EC-9 Earth Dikes & Drainage
Swales
EC-15 Soil Preparation/
Roughening
EC-4 Hydroseeding* EC-10 Velocity Dissipation EC-16 Non-Vegetative
Stabilization EC-5 Soil Binders* EC-11 Slope Drains
EC-6 Straw Mulch* EC-12 Streambank Stabilization
Sediment Control BMPs:
SE-1 Silt Fence SE-6 Gravel Bag Berm SE-11 ATS
SE-2 Sediment Basin SE-7 Street Sweeping &
Vacuuming
SE-12 Temporary Silt Dike
SE-3 Sediment Trap SE-8 Sandbag Barrier SE-13 Compost Socks & Berms
SE-4 Check Dam SE-9 Straw Bale Barrier SE-14 Biofilter Bags
SE-5 Fiber Rolls SE-10 Storm Drain Inlet Protection
Tracking Control & Wind Erosion Control BMPs:
TC-1 Stabilized Entrance/Exit TC-2 Stabilized Roadway TC-3 Entrance/Outlet Tire Wash
WE-1 Wind Erosion Control
Non-Storm Water Management BMPs:
NS-1 Water Conservation NS-7 Potable Water/Irrigation NS-12 Concrete Curing
NS-2 Dewatering Operations NS-8 Vehicle & Equip. Cleaning NS-13 Concrete Finishing
NS-3 Paving & Grinding NS-9 Vehicle & Equip. Fueling NS-14 Material Use Over Water
NS-4 Temp. Stream Crossing NS-10 Vehicle & Equip. Maint. NS-15 Demo. Adj. to Water
NS-5 Clear Water Diversion NS-11 Pile Driving Operations NS-16 Temporary Batch Plants
NS-6 Illicit Connection/Discharge
Materials & Waste Management BMPs:
WM-1 Material Delivery/Storage WM-5 Solid Waste Management WM-8 Concrete Waste Mgmt.
WM-2 Material Use WM-6 Hazardous Waste Mgmt. WM-9 Sanitary/Septic Waste
WM-3 Stockpile Management WM-7 Contaminated Soil
Management
WM-10 Liquid Waste
Management WM-4 Spill Prevention & Control
Note: Refer to the SWPPP Exhibits/Erosion Control Plans for BMP locations by construction phase. Not all minimum requirements may be
applicable to every project.
Minimum BMP
BMP IMPLEMENTATION SCHEDULE
INACTIVE SITE
Project Name: Poinsettia Community Park
Activities Associated with Phase: (check all that apply)
Routine Site Inspection Street Sweeping
Erosion/Sediment Control Device Installation Trash Removal
Erosion/Sediment Control Device Maintenance Other:
BMP Deployment: (check all that apply)
Erosion Control BMPs:
EC-1 Scheduling EC-7 Geotextiles & Mats EC-13 Reserved
EC-2 Protect Existing Vegetation EC-8 Wood Mulching EC-14 Compost Blankets
EC-3 Hydraulic Mulch* EC-9 Earth Dikes & Drainage
Swales
EC-15 Soil Preparation/
Roughening
EC-4 Hydroseeding* EC-10 Velocity Dissipation EC-16 Non-Vegetative
Stabilization EC-5 Soil Binders* EC-11 Slope Drains
EC-6 Straw Mulch* EC-12 Streambank Stabilization
Sediment Control BMPs:
SE-1 Silt Fence SE-6 Gravel Bag Berm SE-11 ATS
SE-2 Sediment Basin SE-7 Street Sweeping &
Vacuuming
SE-12 Temporary Silt Dike
SE-3 Sediment Trap SE-8 Sandbag Barrier SE-13 Compost Socks & Berms
SE-4 Check Dam SE-9 Straw Bale Barrier SE-14 Biofilter Bags
SE-5 Fiber Rolls SE-10 Storm Drain Inlet Protection
Tracking Control & Wind Erosion Control BMPs:
TC-1 Stabilized Entrance/Exit TC-2 Stabilized Roadway TC-3 Entrance/Outlet Tire Wash
WE-1 Wind Erosion Control
Non-Storm Water Management BMPs:
NS-1 Water Conservation NS-7 Potable Water/Irrigation NS-12 Concrete Curing
NS-2 Dewatering Operations NS-8 Vehicle & Equip. Cleaning NS-13 Concrete Finishing
NS-3 Paving & Grinding NS-9 Vehicle & Equip. Fueling NS-14 Material Use Over Water
NS-4 Temp. Stream Crossing NS-10 Vehicle & Equip. Maint. NS-15 Demo. Adj. to Water
NS-5 Clear Water Diversion NS-11 Pile Driving Operations NS-16 Temporary Batch Plants
NS-6 Illicit Connection/Discharge
Materials & Waste Management BMPs:
WM-1 Material Delivery/Storage WM-5 Solid Waste Management WM-8 Concrete Waste Mgmt.
WM-2 Material Use WM-6 Hazardous Waste Mgmt. WM-9 Sanitary/Septic Waste
WM-3 Stockpile Management WM-7 Contaminated Soil
Management
WM-10 Liquid Waste
Management WM-4 Spill Prevention & Control
Note: Refer to the SWPPP Exhibits/Erosion Control Plans for BMP locations by construction phase. Not all minimum requirements may be
applicable to every project.
Minimum BMP
* The Contractor shall select one of the five measures or a combination thereof to stabilize inactive areas (areas of construction activity that
have been disturbed but are not currently being worked on and are not scheduled to be re-disturbed for at least 14 days)
TRAINING FORMS & LOGS
Storm Water Management Topic: (check as appropriate)
Temporary Soil Stabilization Temporary Sediment Control
Wind Erosion Control Tracking Control
Non-storm water management Waste Management and Materials Pollution Control
Storm Water Sampling
Specific Training Objective:
Location: Date:
Instructor: Telephone:
Course Length (hours):
Attendee Roster (attach additional forms if necessary)
Name Company Phone
COMMENTS:
Storm Water Management Topic: (check as appropriate)
Temporary Soil Stabilization Temporary Sediment Control
Wind Erosion Control Tracking Control
Non-storm water management Waste Management and Materials Pollution Control
Storm Water Sampling
Specific Training Objective:
Location: Date:
Instructor: Telephone:
Course Length (hours):
Attendee Roster (attach additional forms if necessary)
Name Company Phone
COMMENTS:
MEMORANDUM TO EMPLOYEES
(May be periodically attached to paychecks)
TO ALL EMPLOYEES:
[Client Name] supports the protection of our environment and has developed a program for this
project to reduce pollutants from entering the local waterways.
You will be expected to abide by all requirements of the program and do your part to comply
with the program while you are working on this project by:
Disposing of trash, rubbish, and construction debris properly.
Reporting, to the General Contractor, leaky vehicles or equipment or other pollution
sources that may be present.
Covering material, which may be exposed to the rain.
Encouraging your co-workers to do the same.
Remember, we all benefit from the recreation that is provided by these waters that we are
protecting.
A copy of the storm water pollution plan developed for this site is available for your review at the
construction office.
Emma Smith
Jun 04, 2015 - Aug 30, 2017
Certificate # 20121
RESPONSIBLE PARTIES
Project Owner:
City of Carlsbad
1635 Faraday Avenue
Carlsbad, CA 92008
760-602-2751
Pat Thomas, Public Works Director
Pat.Thomas@carlsbadca.gov
General Contractor:
Name:
Address:
City, State, Zip:
Telephone:
Name and Title of Contact:
Email Address / Phone:
Qualified SWPPP Practitioner (QSP):
Name:
Address:
City, State, Zip:
Telephone:
Name and Title of QSP:
Email Address / Phone:
City of Carlsbad
Engineering Department
1635 Faraday Avenue
Carlsbad, CA 92008
760-602-2751
CONTRACTORS AND SUBCONTRACTORS
Project Name:
WDID:
Company Name Contact Person
Name Address Telephone Responsibilities
Sample Subcontractor Notification Letter
[Date]
[Subcontractor/Supplier’s Name]
[Company]
[Address]
[City, State]
Dear [Subcontractor/Supplier’s Name]
Please be advised that this contract is subject to the requirements and conditions of the
National Pollutant Discharge Elimination System (NPDES) General Construction Permit.
In short, the purpose of this system is to eliminate pollutants from entering into the storm drain
systems which eventually lead into our lakes, streams and oceans. Common pollutants include
oil, grease, trash, sediment, asphaltic emulsions, concrete wastes, fertilizers, and pesticides.
[Fuscoe Engineering, Inc. (example)] has developed a Storm Water Pollution Prevention Plan
(SWPPP) in accordance with state requirements.
You, as a Subcontractor/supplier are required to comply with the SWPPP and the NPDES
General and Regional Permits (if any) for all work performed on this site.
Any person or group who violates any condition of the general permit may be subject to
substantial penalties in accordance with Section 309 of the Clean Water Act and the Porter-
Cologne Water Quality Control Act. You are encouraged to advise each of your employees
working on this project of requirements and guidelines of the SWPPP. Periodic memorandums
attached to paychecks are often effectives means to remind employees of their responsibilities
(see Appendix 13).
In the event that any violation of the above referenced permit conditions is committed by a
representative of [Subcontractor/Supplier], the liability for any associated penalties levied
against [Client Name] becomes the responsibility of the [Subcontractor/Supplier].
A copy of the General Construction Activity Storm Water Permit, and the SWPPP developed for
this site is available for your review at the construction office.
Please call if you have any questions.
Sincerely,
[Name of Sender]
I hereby acknowledge receipt of this document, and agree with the terms and conditions
represented herein.
________________________________
[Subcontractor/Supplier]
SUBCONTRACTOR NOTIFICATION LOG
Project Name:
WDID:
SUBCONTRACTOR
COMPANY NAME
CONTACT
NAME ADDRESS PHONE
NUMBER
PAGER/
FIELD
PHONE
DATE
NOTIFICATION
LETTER SENT
TYPE OF WORK
SUBCONTRACTOR
COMPANY NAME
CONTACT
NAME ADDRESS PHONE
NUMBER
PAGER/
FIELD
PHONE
DATE
NOTIFICATION
LETTER SENT
TYPE OF WORK
USE ADDITIONAL PAGES AS NECESSARY
SIGNIFICANT SPILL REPORT
WDID:
Date of Occurrence:
Discovered by:
Location:
Material Type:
Volume
Spilled:
Cause of Spill:
Corrective
Action Taken:
Agencies
Contacted:
Signed:
Printed Name:
Title:
SIGNIFICANT SPILL REPORT
WDID:
Date of Occurrence:
Discovered by:
Location:
Material Type:
Volume
Spilled:
Cause of Spill:
Corrective
Action Taken:
Agencies
Contacted:
Signed:
Printed Name:
Title:
1 QUICK REFERENCE DISPOSAL ALTERNATIVES (Adopted from Santa Clara County Nonpoint Source Solution Control Program December 1992) All of the waste products on this chart are prohibited from discharge to the storm drain system. Use this matrix to decide which alternative disposal strategies to use. ALTERNATIVES ARE LISTED IN PRIORITY ORDER. Key: HHW Household hazardous waste (Government-sponsored drop-off events) POTW Publicly Owned Treatment Plant Reg.Bd. Regional Water Quality Control Board (Oakland) “Dispose to sanitary sewer” means dispose into sink, toilet, or sanitary sewer clean-out connection. “Dispose as trash” means dispose in dumpsters or trash containers for pickup and/or eventual disposal in landfill. “Dispose as hazardous waste” for business/commercial means contract with a hazardous waste hauler to remove and dispose. DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities General Construction and Paint; Street and Utility Maintenance Excess paint (oil-based) 1. Recycle/reuse 2. Dispose as hazardous waste 1. Recycle/reuse 2. Take to HHW drop-off Excess paint (water-based) 1. Recycle/reuse 2. Dry residue in cans, dispose as trash 3. If volume is too much to dry, dispose as hazardous waste 1. Recycle/reuse 2. Dry residue in cans, dispose as trash 3. If volume is too much to dry, take to HHW drop-off Paint cleanup (oil-based) Wipe paint out of brushes, then: 1. Filter & reuse thinners, solvents 2. Dispose as hazardous waste Wipe paint out of brushes, then: 1. Filter & reuse thinners, solvents 2. Take to HHW drop-off Paint cleanup (water-based) Wipe paint out of brushes, then: 1. Rinse to sanitary sewer Wipe paint out of brushes, then: 1. Rinse to sanitary sewer Empty paint cans (dry) 1. Remove lids, dispose as trash 1. Remove lids, dispose as trash Paint stripping (with solvent) 1. Dispose as hazardous waste 1. Take to HHW drop-off Building exterior cleaning (high-pressure water) 1. Prevent entry into storm drain and remove offsite 2. Wash onto dirt area, spade in 3. Collect (e.g., mop up) and discharge to sanitary sewer POTW Cleaning of building exteriors which have HAZARDOUS MATERIALS (e.g., mercury, lead) in paints 1. Use dry cleaning methods 2. Contain and dispose washwater as hazardous waste (Suggestion: dry material first to reduce volume)
2 DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities General Construction and Paint; Street and Utility Maintenance (cont’d) Non-hazardous paint scraping/sand blasting 1. Dry sweep, dispose as trash 1. Dry sweep, dispose as trash HAZARDOUS paint scraping/sand blasting (e.g., marine paints or paints containing lead or tributyl tin) 1. Dry sweep, dispose as hazardous waste 1. Dry sweep, take to HHW drop-off Soil from excavations during periods when storms are forecast 1. Should not be placed in street or on paved areas 2. Remove from site or backfill by end of day 3. Cover with tarpaulin or surround with hay bales, or use other runoff controls (e.g., sandbags) 4. Place filter mat over storm drain Note: Thoroughly sweep following removal of dirt in all four alternatives Soil from excavations placed on paved surfaces during period when storms are not forecast 1. Keep material out of storm conveyance systems and thoroughly remove via sweeping following removal of dirt 2. Surround with sandbags Cleaning streets in construction areas 1. Dry sweep and minimize tracking of mud 2. Use silt ponds and/or similar pollutant reduction techniques when flushing pavement Soil erosion, sediments 1. Cover disturbed soils, use erosion controls and block entry to storm drain 2. Seed or plant immediately Fresh cement, grout, and mortar 1. Use/reuse excess 2. Dispose to trash 1. Use/reuse excess 2. Dispose to trash Washwater from concrete/mortar (etc.) cleanup 1. Wash onto dirt area, spade in 2. Pump and remove to appropriate disposal facility 3. Settle, pump water to sanitary sewer POTW 1. Wash onto dirt area, spade in 2. Pump and remove to appropriate disposal facility 3. Settle, pump water to sanitary sewer Aggregate wash from driveway/patio construction 1. Wash onto dirt area, spade in 2. Pump and remove to appropriate disposal facility 3. Settle, pump water to sanitary sewer POTW 1. Wash onto dirt area, spade in 2. Pump and remove to appropriate disposal facility 3. Settle, pump water to sanitary sewer
3 DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities General Construction and Paint; Street and Utility Maintenance (cont’d) Rinsewater from concrete mixing trucks 1. Return truck to yard for rinsing into pond or dirt area 2. At construction site, wash into settling pond or dirt area lined with plastic and bermed, or surrounded with sandbags Non-hazardous construction and demolition debris 1. Recycle/reuse (concrete, wood, etc.) 2. Dispose as trash 1. Recycle/reuse (concrete, wood, etc.) 2. Dispose as trash Hazardous demolition and construction debris (e.g., asbestos) 1. Dispose as hazardous waste 1. Do not attempt to remove yourself. Contact asbestos removal service for safe removal and disposal 2. Very small amounts (less than 5 lbs.) may be double-wrapped in plastic and take to HHW drop-off Saw-cut slurry 1. Use dry cutting technique and sweep up residue 2. Vacuum slurry and dispose off-site 3. Block storm drain or berm with low weir as necessary to allow most solids to settle. Shovel out gutters; dispose residue to dirt area, construction yard or landfill Construction dewatering (Nonturbid, uncontaminated groundwater) 1. Recycle/Reuse 2. Discharge to storm drain Construction dewatering (other than nonturbid, uncontaminated groundwater) 1. Recycle/Reuse 2. Discharge to sanitary sewer 3. As appropriate, treat prior to discharge to storm drain POTW Reg. Bd. Portable toilet waste 1. Leasing company shall dispose to sanitary sewer at POTW POTW Leaks from garbage dumpsters 1. Collect, contain leaking material. Eliminate leak, keep covered, return to leasing company for immediate repair 2. If dumpster is used for liquid waste, use plastic liner
4 DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities General Construction and Paint; Street and Utility Maintenance (cont’d) Leaks from construction debris bins 1. Ensure that bins are used for dry nonhazardous materials only (Suggestion: Fencing, covering helps prevent misuse) Dumpster cleaning water 1. Clean at dumpster owner’s facility and discharge waste through grease interceptor to sanitary sewer 2. Clean on-site and discharge through grease interceptor to sanitary sewer POTW POTW Cleaning driveways, paved areas * (Special Focus = Restaurant alleys, Grocery dumpster areas) * Note: Local drought ordinances may contain additional restrictions 1. Sweep and dispose as trash (Dry cleaning only) 2. For vehicle leaks, restaurant/grocery alleys, follow this 3-step process: a. Clean up leaks with rags or absorbents b. Sweep, using granular absorbent material (cat litter) c. Mop and dispose of mopwater to sanitary sewer (or collect rinse- water and pump to the sanitary sewer) 3. Same as 2 above, but with rinsewater (2c) (no soap) discharged to storm drain 1. Sweep and dispose as trash (Dry cleaning only) 2. For vehicle leaks, restaurant/grocery alleys, follow this 3-step process: a. Clean up leaks with rags or absorbents; dispose as hazardous waste b. Sweep, using granular absorbent material (cat litter) c. Mop and dispose of mopwater to sanitary sewer Steam cleaning of sidewalks, plazas * * Note: Local drought ordinances may contain additional restrictions 1. Collect all water and pump to sanitary sewer 2. Follow this 3-step process: a. Clean oil leaks with rags or absorbents b. Sweep (Use dry absorbent as needed) c. Use no soap, discharge to storm drain Potable water/line flushing Hydrant testing 1. Deactivate chlorine by maximizing time water will travel before reaching creeks Super-chlorinated (above 1 ppm) water from line flushing 1. Discharge to sanitary sewer 2. Complete dechlorination required before discharge to storm drain
5 DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities Landscape/Garden Maintenance Pesticides 1. Use up. Rinse containers. Use rinsewater as product. Dispose rinsed containers as trash 2. Dispose unused pesticide as hazardous waste 1. Use up. Rinse containers. Use rinsewater as pesticide. Dispose rinsed containers as trash 2. Take unused pesticide to HHW drop-off Garden clippings 1. Compost 2. Take to Landfill 1. Compost 2. Dispose as trash Tree trimming 1. Chip if necessary, before composting as recycling 1. Chip if necessary, before composting as recycling Swimming pool, spa, fountain water (emptying) 1. Do not use metal-based algicides (i.e., Copper Sulfate) 2. Recycle/reuse (e.g., irrigation) 3. Determine chlorine residue = 0, wait 24 hours and then discharge to storm drain POTW 1. Do not use metal-based algicides (i.e., Copper Sulfate) 2. Recycle/reuse (e.g., irrigation) 3. Determine chlorine residue = 0, wait 24 hours and then discharge to storm drain Acid or other pool/spa/fountain cleaning 1. Neutralize and discharge to sanitary sewer POTW Swimming pool, spa filter backwash 1. Reuse for irrigation 2. Dispose on dirt area 3. Settle, dispose to sanitary sewer 1. Use for landscape irrigation 2. Dispose on dirt area 3. Settle, dispose to sanitary sewer Vehicle Wastes Used motor oil 1. Use secondary containment while storing, send to recycler 1. Put out for curbside recycling pickup where available 2. Take to Recycling Facility or auto service facility with recycling program 3. Take to HHW events accepting motor oil Antifreeze 1. Use secondary containment while storing, send to recycler 1. Take to Recycling Facility Other vehicle fluids and solvents 1. Dispose as hazardous waste 1. Take to HHW event Automobile batteries 1. Send to auto battery recycler 2. Take to Recycling Center 1. Exchange at retail outlet 2. Take to Recycling Facility or HHW event where batteries are accepted Motor home/construction trailer waste 1. Use holding tank. Dispose to sanitary sewer 1. Use holding tank, dispose to sanitary sewer
6 DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities Vehicle Wastes (cont’d) Vehicle Washing 1. Recycle 2. Discharge to sanitary sewer, never to storm drain POTW 1. Take to Commercial Car Wash 2. Wash over lawn or dirt area 3. If soap is used, use a bucket for soapy water and discharge remaining soapy water to sanitary sewer Mobile Vehicle Washing 1. Collect washwater and discharge to sanitary sewer POTW Vehicle leaks Follow this 3-step process: 1. Clean up leaks with rags or absorbents 2. Sweep, using granular absorbent material (cat litter) 3. Mop and dispose of mopwater to sanitary sewer Other Wastes Carpet cleaning solutions & other mobile washing services 1. Dispose to sanitary sewer POTW 1. Dispose to sanitary sewer Roof drains 1. If roof is contaminated with industrial waste products, discharge to sanitary sewer 2. If no contamination is present, discharge to storm drain Cooling water Air conditioning condensate 1. Recycle/reuse 2. Discharge to sanitary sewer POTW Pumped groundwater, infiltration/ foundation drainage (contaminated) 1. Recycle/reuse (landscaping, etc.) 2. Treat if necessary; discharge to sanitary sewer 3. Treat and discharge to storm drain Reg. Bd. POTW Reg. Bd. Fire fighting flows If contamination is present, Fire Dept. will attempt to prevent flow to stream or storm drain
7 DISCHARGE/ACTIVITY BUSINESS/COMMERCIAL RESIDENTIAL Disposal Priorities Approval Disposal Priorities Other Wastes (cont’d) Kitchen Grease 1. Provide secondary containment, collect, and/or send to recycler. 2. Provide secondary containment, collect, and/or send to POTW via hauler POTW 1. Collect, solidify, dispose as trash Restaurant cleaning of floor mats, exhaust filters, etc. 1. Clean inside building with discharge through grease trap to sanitary sewer 2. Clean outside in container or bermed area with discharge to sanitary sewer Clean-up wastewater from sewer back-up 1. Follow this procedure: a. Block storm drain, contain, collect, and return spilled material to the sanitary sewer b. Block storm drain, rinse remaining material to collection point, and pump to sanitary sewer (no rinse- water may flow to storm drain)
VISUAL MONITORING / INSPECTIONS
All sites (Risk Levels 1, 2, and 3) are required to conduct visual monitoring (inspections). Visual
monitoring includes inspections of BMPs, inspections before and after qualifying rain events, and
inspection for non-storm water discharges. Visual inspections are required for the duration of the
project with the goal of confirming that appropriately selected BMPs have been implemented, are
being maintained, and are effective in preventing potential pollutants from coming in contact with
storm water
The attached forms may be utilized for documenting visual monitoring & inspections performed on the
project site. The General Permit includes the following requirements for visual monitoring:
Visual Monitoring (all Risk Levels)
Visual monitoring for non-storm water discharges (quarterly)
o January-March
o April-June
o July-September
o October-December
Baseline pre-rain event inspection (within 48 hours of qualifying rain events)
BMP inspections (weekly and every 24 hours during extended storm events)
Post-rain event inspection (within 2 business days after qualifying rain events)
The General Permit defines a qualifying rain event as one that produces ½-inch or more of
precipitation with a 48 hour or greater period between rain events.
The General Permit requires that the construction site be inspected within two days prior to a predicted
qualifying rain event, once every 24-hours during extended storm events, and within two days after a
qualifying rain event. These inspections are only required during normal business hours of the
construction site. The General Permit requires that only weather forecasts from the National
Oceanographic and Atmospheric Administration (NOAA) are used. Pre-project inspections should be
initiated after consulting NOAA for a qualifying rain event with 50% or greater probability of
precipitation (PoP). These forecasts can be obtained at http://www.srh.noaa.gov/.
Records must be kept of all qualifying rain event inspections, included in Appendix P. Records need to
be maintained on site and document:
Personnel performing the observations;
Observation dates (time and date);
Printed copy of the NOAA forecast
Weather conditions (including the rain gauge reading for the qualifying rain event);
Locations observed; and
Corrective actions taken in response to observations.
If deficiencies are identified during BMP inspections, repairs or design changes to BMPs must be
initiated within 72 hours of identification and need to be completed as soon as possible. All BMP
inspections must be documented on an inspection checklist (see attached forms). The checklist should
be made site specific based on the BMPs and outfalls for each construction project, and copies of the
completed inspection forms, any corrective actions and any photographs taken shall be included in
this SWPPP (Appendix P).
Results of all visual monitoring & inspections are included as part of the Annual Report (see Section
7.9.3 and Appendix F).
If the site is Risk Level 2 or 3 and there are non-storm water discharges, then samples must be
collected and analyzed per Section 7.6.
Refer to Section 7.5 of the SWPPP for further information regarding visual monitoring requirements.
Rain Gauge Log
Site Name: WDID:
Date Time Rain Gauge Reading Read By (printed name)
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection: Report Date:
Inspection
Type: □ Weekly □ Before
predicted rain
□ During
rain event
□ Following
qualifying rain
event
□ Contained
stormwater
release
□ Quarterly
non-stormwater
Site Information
Construction Site Name: WDID:
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur: Predicted % chance of rain:
Estimate storm beginning:
(date and time)
Estimate storm
duration:_________
(hours)
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Observations: If yes identify location
Odors Yes □ No □
Floating material Yes □ No □
Suspended Material Yes □ No □
Sheen Yes □ No □
Discolorations Yes □ No □
Turbidity Yes □ No □
Site Inspections
Outfalls or BMPs Evaluated Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken: Yes □ No □ Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name: Inspector Title:
Signature: Date:
STORM WATER QUALITY
CONSTRUCTION SITE INSPECTION CHECKLIST
GENERAL INFORMATION
Project Name
WDID No.
Contractor
Arrival Time Departure Time
Weather Condition
Construction Type
Prior to forecast rain After a rain event Inspection Type
(Check Applicable)
24-hr intervals during extended rain Other
Season
(Check Applicable) Rainy Non-Rainy
Storm Start Date & Time: Storm Duration (hrs):
Storm Data Time elapsed since last storm
(Circle Applicable Units) Min. Hr. Days
Approximate Rainfall
Amount (mm)
PROJECT AREA SUMMARY AND
DISTURBED SOIL AREA (DSA) SIZE
Total Project Area Hectare/Acres Estimate of Active DSAs Hectare/Acres
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
Preservation of Existing Vegetation
Is temporary fencing provided to preserve vegetation in areas
where no construction activity is planned?
Temporary Soil Stabilization
Does the applied temporary soil stabilization provide 100%
coverage for the required areas?
Are there any non-vegetated areas that may require temporary
soil stabilization?
Temporary Linear Sediment Barriers
Are temporary linear sediment barriers properly installed in
accordance with the details, functional and maintained?
Are cross barriers installed where necessary and properly
spaced?
Storm Drain Inlet Protection
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
Are storm drain inlets properly protected and maintained?
Desilting Basins
Do basins provide the required retention/detention?
Stockpiles
Are all locations of temporary stockpiles, including soil, hazardous
waste, and construction materials in approved areas?
Are stockpiles protected from run-on, run-off from adjacent areas
and from winds?
Are required covers and/or perimeter controls in place?
Concentrated Flows
Are concentrated flow paths free of visible erosion?
Tracking Control
Are all paved areas and points of ingress/egress free of visible
sediment tracking or other particulate matter?
Is dust control implemented in conformance with Section 10 of the
Standard Specifications?
Dewatering Operations
Is dewatering handled in conformance with the dewatering permit
issued by the RWQCB?
Is required treatment provided for dewatering effluent?
Vehicle & Equipment Fueling, Cleaning, and Maintenance
Are vehicle and equipment fueling, cleaning and maintenance
areas clean and free of spills and leaks?
Are vehicle and equipment fueling, cleaning and maintenance
activities performed on an impermeable surface?
If no, are drip pans used?
Are dedicated fueling, cleaning, and maintenance areas located
appropriately and protected from run-on and runoff?
Is wash water contained for infiltration/ evaporation and disposed
of outside the highway right of way?
Is on-site cleaning limited to washing with water only?
Are vehicles and equipment inspected for leaks and repaired?
Waste Management & Materials Pollution Control
Are material storage areas and washout areas protected from
run-on and runoff, and located in appropriate areas?
Are all material handling and storage areas clean and stocked
with appropriate clean-up supplies?
Are liquid materials, hazardous materials, and hazardous wastes
stored in temporary containment facilities?
Are bagged and boxed materials stored on pallets?
Are hazardous materials and wastes stored in appropriate,
labeled containers?
Are proper storage, clean-up, and spill-reporting procedures for
hazardous materials and wastes posted in appropriate areas?
Are temporary containment facilities free of spills and rainwater?
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
Are temporary containment facilities and bagged/boxed materials
covered?
Are temporary concrete washout facilities designated and being
used?
Are temporary concrete washout facilities functional?
Do concrete washout facilities provide sufficient volume for
planned operations?
Are concrete wastes, including residues from cutting and grinding,
contained in off-site or in concrete washout facilities?
Are spills from mobile equipment fueling and maintenance
properly contained and cleaned up?
Is the site free of litter?
Are trash receptacles in appropriate areas, watertight, and leak
free?
Temporary Water Body Crossing or Encroachment
Are temporary water body crossings and encroachments
constructed as shown on the plans or as approved by the
engineer?
Does the project conform to the requirements of the 404 permit
and/or 1601agreement?
Illicit Connection/Illegal Discharge Detection and Reporting
Is there any evidence of illicit discharges or illegal dumping on the
project site?
If yes, has the Engineer been notified?
Discharge Points
Are discharge points and discharge flows free from noticeable
pollutants?
Are discharge points free of any significant erosion or sediment
transport?
SWPPP Update
Does the SWPPP reflect the activities at the construction site?
General
Are there any other potential water pollution control concerns at
the site?
Storm Water Monitoring
Does storm water discharge directly to a water body listed in the
General Permit as impaired for sediment/sedimentation or
turbidity?
If yes, were samples for sediment/sedimentation or turbidity
collected pursuant to the sampling and analysis plan, if required,
during rain events?
Were there any BMPs not properly implemented or breaches,
malfunctions, leakages or spills observed which could result in the
discharge of pollutants to surface waters that would not be
visually detectable in storm water?
If yes, were samples for non-visually detectable pollutants
collected pursuant to the sampling and analysis plan during rain
events?
Were soil amendments (e.g., gypsum) used on the project?
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
If yes, were samples for non-visually detectable pollutants
collected pursuant to the sampling and analysis plan during rain
events?
Did storm water contact stored materials or waste and run off the
construction site? (Materials not in watertight containers, etc.)
If yes, were samples for non-visually detectable pollutants
collected pursuant to the sampling and analysis plan during rain
events?
Additional Comments/Recommendations:
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
Certification
Inspection performed by: ____________________________ ____________________________
Name Signature
Title: _____________________________________________ Date: _______________________________
Inspection confirmed by: ____________________________ ____________________________
Name Signature
Title: _____________________________________________ Date: _______________________________
A COPY OF THIS REPORT MUST BE KEPT ON-SITE IN THE SWPPP AT ALL TIMES.
STORM WATER QUALITY
CONSTRUCTION SITE INSPECTION CHECKLIST
GENERAL INFORMATION
Project Name
WDID No.
Contractor
Arrival Time Departure Time
Weather Condition
Construction Type
Prior to forecast rain After a rain event Inspection Type
(Check Applicable)
24-hr intervals during extended rain Other
Season
(Check Applicable) Rainy Non-Rainy
Storm Start Date & Time: Storm Duration (hrs):
Storm Data Time elapsed since last storm
(Circle Applicable Units) Min. Hr. Days
Approximate Rainfall
Amount (mm)
PROJECT AREA SUMMARY AND
DISTURBED SOIL AREA (DSA) SIZE
Total Project Area Hectare/Acres Estimate of Active DSAs Hectare/Acres
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
Preservation of Existing Vegetation
Is temporary fencing provided to preserve vegetation in areas
where no construction activity is planned?
Temporary Soil Stabilization
Does the applied temporary soil stabilization provide 100%
coverage for the required areas?
Are there any non-vegetated areas that may require temporary
soil stabilization?
Temporary Linear Sediment Barriers
Are temporary linear sediment barriers properly installed in
accordance with the details, functional and maintained?
Are cross barriers installed where necessary and properly
spaced?
Storm Drain Inlet Protection
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
Are storm drain inlets properly protected and maintained?
Desilting Basins
Do basins provide the required retention/detention?
Stockpiles
Are all locations of temporary stockpiles, including soil, hazardous
waste, and construction materials in approved areas?
Are stockpiles protected from run-on, run-off from adjacent areas
and from winds?
Are required covers and/or perimeter controls in place?
Concentrated Flows
Are concentrated flow paths free of visible erosion?
Tracking Control
Are all paved areas and points of ingress/egress free of visible
sediment tracking or other particulate matter?
Is dust control implemented in conformance with Section 10 of the
Standard Specifications?
Dewatering Operations
Is dewatering handled in conformance with the dewatering permit
issued by the RWQCB?
Is required treatment provided for dewatering effluent?
Vehicle & Equipment Fueling, Cleaning, and Maintenance
Are vehicle and equipment fueling, cleaning and maintenance
areas clean and free of spills and leaks?
Are vehicle and equipment fueling, cleaning and maintenance
activities performed on an impermeable surface?
If no, are drip pans used?
Are dedicated fueling, cleaning, and maintenance areas located
appropriately and protected from run-on and runoff?
Is wash water contained for infiltration/ evaporation and disposed
of outside the highway right of way?
Is on-site cleaning limited to washing with water only?
Are vehicles and equipment inspected for leaks and repaired?
Waste Management & Materials Pollution Control
Are material storage areas and washout areas protected from
run-on and runoff, and located in appropriate areas?
Are all material handling and storage areas clean and stocked
with appropriate clean-up supplies?
Are liquid materials, hazardous materials, and hazardous wastes
stored in temporary containment facilities?
Are bagged and boxed materials stored on pallets?
Are hazardous materials and wastes stored in appropriate,
labeled containers?
Are proper storage, clean-up, and spill-reporting procedures for
hazardous materials and wastes posted in appropriate areas?
Are temporary containment facilities free of spills and rainwater?
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
Are temporary containment facilities and bagged/boxed materials
covered?
Are temporary concrete washout facilities designated and being
used?
Are temporary concrete washout facilities functional?
Do concrete washout facilities provide sufficient volume for
planned operations?
Are concrete wastes, including residues from cutting and grinding,
contained in off-site or in concrete washout facilities?
Are spills from mobile equipment fueling and maintenance
properly contained and cleaned up?
Is the site free of litter?
Are trash receptacles in appropriate areas, watertight, and leak
free?
Temporary Water Body Crossing or Encroachment
Are temporary water body crossings and encroachments
constructed as shown on the plans or as approved by the
engineer?
Does the project conform to the requirements of the 404 permit
and/or 1601agreement?
Illicit Connection/Illegal Discharge Detection and Reporting
Is there any evidence of illicit discharges or illegal dumping on the
project site?
If yes, has the Engineer been notified?
Discharge Points
Are discharge points and discharge flows free from noticeable
pollutants?
Are discharge points free of any significant erosion or sediment
transport?
SWPPP Update
Does the SWPPP reflect the activities at the construction site?
General
Are there any other potential water pollution control concerns at
the site?
Storm Water Monitoring
Does storm water discharge directly to a water body listed in the
General Permit as impaired for sediment/sedimentation or
turbidity?
If yes, were samples for sediment/sedimentation or turbidity
collected pursuant to the sampling and analysis plan, if required,
during rain events?
Were there any BMPs not properly implemented or breaches,
malfunctions, leakages or spills observed which could result in the
discharge of pollutants to surface waters that would not be
visually detectable in storm water?
If yes, were samples for non-visually detectable pollutants
collected pursuant to the sampling and analysis plan during rain
events?
Were soil amendments (e.g., gypsum) used on the project?
OTHER REQUIREMENTS
Requirement Yes No N/A Corrective Action
If yes, were samples for non-visually detectable pollutants
collected pursuant to the sampling and analysis plan during rain
events?
Did storm water contact stored materials or waste and run off the
construction site? (Materials not in watertight containers, etc.)
If yes, were samples for non-visually detectable pollutants
collected pursuant to the sampling and analysis plan during rain
events?
Additional Comments/Recommendations:
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
Certification
Inspection performed by: ____________________________ ____________________________
Name Signature
Title: _____________________________________________ Date: _______________________________
Inspection confirmed by: ____________________________ ____________________________
Name Signature
Title: _____________________________________________ Date: _______________________________
A COPY OF THIS REPORT MUST BE KEPT ON-SITE IN THE SWPPP AT ALL TIMES.
NOT APPLICABLE FOR RISK LEVEL 1
PROJECTS
RAIN EVENT ACTION PLANS (REAPs)
REAPs are to be completed by the QSP when there is a forecast of a likely precipitation event in the
project area according to the National Oceanic and Atmospheric Administration (NOAA) forecast
website (http://www.crh.noaa.gov/lot/severe/wxterms.php).
A “likely precipitation event” is any weather pattern that is forecast to have a 50% or greater chance
of precipitation in the project area. Forecasts are normally issued for 12-hour time periods. It is
recommended that the NOAA forecast be printed and saved where REAPs are required for
documentation of the forecast. Copies may be saved in Appendix Q.
REAPs are also required for project sites where construction activities are indefinitely halted or
postponed.
REAP templates are included in Appendix Q. Copies of completed REAPs shall be documented in the
SWPPP (Appendix Q) and submitted through SMARTS with the Annual Report (Appendix F).
Note: REAPs are to be prepared and implemented in addition to the pre-storm event visual inspection
requirements, described further in Section 7.5.
REAPs are not required for Risk Level 1 dischargers.
November 2009 California Stormwater BMP Handbook | www.casqa.org C-1
0BRain Event Action Plan (REAP)
Date: WDID Number:
Date Rain Predicted to Occur: Predicted % chance of rain:
Site Information:
Site Name, City and Zip Code Project Risk Level: □ Risk Level 2 □ Risk Level 3
Site Stormwater Manager Information:
Name, Company, Emergency Phone Number (24/7)
Erosion and Sediment Control Contractor – Labor Force contracted for the site:
Name, Company, Emergency Phone Number (24/7)
Stormwater Sampling Agent:
Name, Company, Emergency Phone Number (24/7)
Current Phase of Construction
Check ALL the boxes below that apply to your site.
Grading and Land Development Vertical Construction Inactive Site
Streets and Utilities Final Landscaping and Site
Stabilization
Other:
Activities Associated with Current Phase(s)
Check ALL the boxes below that apply to your site (some apply to all Phases).
UGrading and Land Development:
Demolition Vegetation Removal Vegetation Salvage-Harvest
Rough Grade Finish Grade Blasting
Soil Amendment(s): Excavation (_____ ft) Soils Testing
Rock Crushing Erosion and Sediment Control Surveying
Equip. Maintenance/Fueling Material Delivery and Storage Other:
UStreets and Utilities:
Finish Grade Utility Install: water-sewer-gas Paving Operations
Equip. Maintenance/Fueling Storm Drain Installation Material Delivery & Storage
Curb and Gutter/Concrete Pour Masonry Other:
UVertical Construction:
Framing Carpentry Concrete/Forms/Foundation
Masonry Electrical Painting
Drywall/Interior Walls Plumbing Stucco
Equip. Maintenance/Fueling HVAC Tile
Exterior Siding Insulation Landscaping & Irrigation
Flooring Roofing Other:
UFinal Landscaping & Site Stabilization:
Stabilization Vegetation Establishment E&S Control BMP Removal
Finish Grade Storage Yard/ Material
Removal
Landscape Installation
Painting and Touch-Up Irrigation System Testing Other:
Drainage Inlet Stencils Inlet Filtration Perm. Water Quality Ponds
Other:
UInactive Construction Site:
E & S Control Device Installation
E & S Control Device Maintenance
Other:
Routine Site Inspection
Street Sweeping
Other:
Trash Removal
Other:
November 2009 California Stormwater BMP Handbook | www.casqa.org C-2
Rain Event Action Plan (REAP)
Date: WDID Number:
Trades Active on Site during Current Phase(s)
Check ALL the boxes below that apply to your site
Storm Drain Improvement Grading Contractor Surveyor- Soil Technician
Street Improvements Water Pipe Installation Sanitary Station Provider
Material Delivery Sewer Pipe Installation Electrical
Trenching Gas Pipe Installation Carpentry
Concrete Pouring Electrical Installation Plumbing
Foundation Communication Installation Masonry
Demolition Erosion and Sediment Control Water, Sewer, Electric
Utilities
Material Delivery Equipment
Fueling/Maintenance
Rock Products
Tile Work- Flooring Utilities, e.g., Sewer, Electric Painters
Drywall Roofers Carpenters
HVAC installers Stucco Pest Control: e.g., termite
prevention
Exterior Siding Masons Water Feature Installation
Insulation Landscapers Utility Line Testers
Fireproofing Riggers Irrigation System Installation
Steel Systems Utility Line Testers Other:
16BTrade Contractor Information Provided
Check ALL the boxes below that apply to your site.
Educational Material Handout Tailgate Meetings Training Workshop
Contractual Language Fines and Penalties Signage
Other: Other: Other:
17BContinued on next page.
November 2009 California Stormwater BMP Handbook | www.casqa.org C-3
Rain Event Action Plan (REAP)
Date of REAP BWDID Number:
Date Rain Predicted to Occur: Predicted % chance of rain:
Predicted Rain Event Triggered Actions
Below is a list of suggested actions and items to review for this project. Each active Trade should check all material storage
areas, stockpiles, waste management areas, vehicle and equipment storage and maintenance, areas of active soil disturbance,
and areas of active work to ensure the proper implementation of BMPs. Project-wide BMPs should be checked and cross-referenced to the BMP progress map.
Trade or Activity Suggested action(s) to perform / item(s) to review prior to rain event
Information & Scheduling
Inform trade supervisors of predicted rain
Check scheduled activities and reschedule as needed
Alert erosion/sediment control provider
Alert sample collection contractor (if applicable)
Schedule staff for extended rain inspections (including weekends & holidays)
Check Erosion and Sediment Control (ESC) material stock
Review BMP progress map
Other:___________________________________
________________________________________
________________________________________
Material storage areas
Material under cover or in sheds (ex: treated woods and metals)
Perimeter control around stockpiles
Other:___________________________________
________________________________________
__________________________________
Waste management areas
Dumpsters closed
Drain holes plugged
Recycling bins covered
Sanitary stations bermed and protected from tipping
Other:___________________________________
________________________________________
________________________________________
Trade operations
Exterior operations shut down for event (e.g., no concrete pours or paving)
Soil treatments (e.g.,: fertilizer) ceased within 24 hours of event
Materials and equipment (ex: tools) properly stored and covered
Waste and debris disposed in covered dumpsters or removed from site
Trenches and excavations protected
Perimeter controls around disturbed areas
Fueling and repair areas covered and bermed
Other:___________________________________
________________________________________
__________________________________
Site ESC BMPs
Adequate capacity in sediment basins and traps
Site perimeter controls in place
Catch basin and drop inlet protection in place and cleaned
Temporary erosion controls deployed
Temporary perimeter controls deployed around disturbed areas and stockpiles
Roads swept; site ingress and egress points stabilized
Other:___________________________________
________________________________________
__________________________________
Concrete rinse out area
Adequate capacity for rain
Wash-out bins covered
Other:___________________________________
________________________________________
__________________________________
Spill and drips
All incident spills and drips, including paint, stucco, fuel, and oil cleaned
Drip pans emptied
Other:___________________________________
________________________________________
__________________________________
Continued on next page.
November 2009 California Stormwater BMP Handbook | www.casqa.org C-4
Other / Discussion /
Diagrams
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
Attach a printout of the weather forecast from the NOAA website to the REAP.
I certify under penalty of law that this Rain Event Action Plan (REAP) will be performed in accordance with the General Permit
by me or under my direction or supervision in accordance with a system designed to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations.
______________________________________________________Date: __________________________
Qualified SWPPP Practitioner (Use ink please)
November 2009 California Stormwater BMP Handbook | www.casqa.org C-1
0BRain Event Action Plan (REAP)
Date: WDID Number:
Date Rain Predicted to Occur: Predicted % chance of rain:
Site Information:
Site Name, City and Zip Code Project Risk Level: □ Risk Level 2 □ Risk Level 3
Site Stormwater Manager Information:
Name, Company, Emergency Phone Number (24/7)
Erosion and Sediment Control Contractor – Labor Force contracted for the site:
Name, Company, Emergency Phone Number (24/7)
Stormwater Sampling Agent:
Name, Company, Emergency Phone Number (24/7)
Current Phase of Construction
Check ALL the boxes below that apply to your site.
Grading and Land Development Vertical Construction Inactive Site
Streets and Utilities Final Landscaping and Site
Stabilization
Other:
Activities Associated with Current Phase(s)
Check ALL the boxes below that apply to your site (some apply to all Phases).
UGrading and Land Development:
Demolition Vegetation Removal Vegetation Salvage-Harvest
Rough Grade Finish Grade Blasting
Soil Amendment(s): Excavation (_____ ft) Soils Testing
Rock Crushing Erosion and Sediment Control Surveying
Equip. Maintenance/Fueling Material Delivery and Storage Other:
UStreets and Utilities:
Finish Grade Utility Install: water-sewer-gas Paving Operations
Equip. Maintenance/Fueling Storm Drain Installation Material Delivery & Storage
Curb and Gutter/Concrete Pour Masonry Other:
UVertical Construction:
Framing Carpentry Concrete/Forms/Foundation
Masonry Electrical Painting
Drywall/Interior Walls Plumbing Stucco
Equip. Maintenance/Fueling HVAC Tile
Exterior Siding Insulation Landscaping & Irrigation
Flooring Roofing Other:
UFinal Landscaping & Site Stabilization:
Stabilization Vegetation Establishment E&S Control BMP Removal
Finish Grade Storage Yard/ Material
Removal
Landscape Installation
Painting and Touch-Up Irrigation System Testing Other:
Drainage Inlet Stencils Inlet Filtration Perm. Water Quality Ponds
Other:
UInactive Construction Site:
E & S Control Device Installation
E & S Control Device Maintenance
Other:
Routine Site Inspection
Street Sweeping
Other:
Trash Removal
Other:
November 2009 California Stormwater BMP Handbook | www.casqa.org C-2
Rain Event Action Plan (REAP)
Date: WDID Number:
Trades Active on Site during Current Phase(s)
Check ALL the boxes below that apply to your site
Storm Drain Improvement Grading Contractor Surveyor- Soil Technician
Street Improvements Water Pipe Installation Sanitary Station Provider
Material Delivery Sewer Pipe Installation Electrical
Trenching Gas Pipe Installation Carpentry
Concrete Pouring Electrical Installation Plumbing
Foundation Communication Installation Masonry
Demolition Erosion and Sediment Control Water, Sewer, Electric
Utilities
Material Delivery Equipment
Fueling/Maintenance
Rock Products
Tile Work- Flooring Utilities, e.g., Sewer, Electric Painters
Drywall Roofers Carpenters
HVAC installers Stucco Pest Control: e.g., termite
prevention
Exterior Siding Masons Water Feature Installation
Insulation Landscapers Utility Line Testers
Fireproofing Riggers Irrigation System Installation
Steel Systems Utility Line Testers Other:
16BTrade Contractor Information Provided
Check ALL the boxes below that apply to your site.
Educational Material Handout Tailgate Meetings Training Workshop
Contractual Language Fines and Penalties Signage
Other: Other: Other:
17BContinued on next page.
November 2009 California Stormwater BMP Handbook | www.casqa.org C-3
Rain Event Action Plan (REAP)
Date of REAP BWDID Number:
Date Rain Predicted to Occur: Predicted % chance of rain:
Predicted Rain Event Triggered Actions
Below is a list of suggested actions and items to review for this project. Each active Trade should check all material storage
areas, stockpiles, waste management areas, vehicle and equipment storage and maintenance, areas of active soil disturbance,
and areas of active work to ensure the proper implementation of BMPs. Project-wide BMPs should be checked and cross-
referenced to the BMP progress map.
Trade or Activity Suggested action(s) to perform / item(s) to review prior to rain event
Information & Scheduling
Inform trade supervisors of predicted rain
Check scheduled activities and reschedule as needed
Alert erosion/sediment control provider
Alert sample collection contractor (if applicable)
Schedule staff for extended rain inspections (including weekends & holidays)
Check Erosion and Sediment Control (ESC) material stock
Review BMP progress map
Other:___________________________________
________________________________________
________________________________________
Material storage areas
Material under cover or in sheds (ex: treated woods and metals)
Perimeter control around stockpiles
Other:___________________________________
________________________________________
__________________________________
Waste management areas
Dumpsters closed
Drain holes plugged
Recycling bins covered
Sanitary stations bermed and protected from tipping
Other:___________________________________
________________________________________
________________________________________
Trade operations
Exterior operations shut down for event (e.g., no concrete pours or paving)
Soil treatments (e.g.,: fertilizer) ceased within 24 hours of event
Materials and equipment (ex: tools) properly stored and covered
Waste and debris disposed in covered dumpsters or removed from site
Trenches and excavations protected
Perimeter controls around disturbed areas
Fueling and repair areas covered and bermed
Other:___________________________________
________________________________________
__________________________________
Site ESC BMPs
Adequate capacity in sediment basins and traps
Site perimeter controls in place
Catch basin and drop inlet protection in place and cleaned
Temporary erosion controls deployed
Temporary perimeter controls deployed around disturbed areas and stockpiles
Roads swept; site ingress and egress points stabilized
Other:___________________________________
________________________________________
__________________________________
Concrete rinse out area
Adequate capacity for rain
Wash-out bins covered
Other:___________________________________
________________________________________
__________________________________
Spill and drips
All incident spills and drips, including paint, stucco, fuel, and oil cleaned
Drip pans emptied
Other:___________________________________
________________________________________
__________________________________
November 2009 California Stormwater BMP Handbook | www.casqa.org C-4
Continued on next page.
Other / Discussion /
Diagrams
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
Attach a printout of the weather forecast from the NOAA website to the REAP.
I certify under penalty of law that this Rain Event Action Plan (REAP) will be performed in accordance with the General Permit
by me or under my direction or supervision in accordance with a system designed to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief,
true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations.
______________________________________________________Date: __________________________
Qualified SWPPP Practitioner (Use ink please)
Guidance on Field Measurements
Source: California Stormwater Quality Association (CASQA). California Stormwater Quality
Handbook for Construction, Appendix D – Field Monitoring and Analysis Guidance. November
2009.
This section details the general practices for sampling using field meters. Before any sampling
begins it is imperative to wear proper clothing and equipment. This includes the appropriate
sampling safety equipment and powder-free nitrile gloves.
Instrument Calibration
Calibrate field meters and equipment before any sampling. Follow the calibration instructions
provided by the manufacturer with your instrument. Calibration standards should be purchased
with your instrument and repurchased as needed. The standards have limited shelf life and
should not be used beyond the expiration date.
Most pH meters require a two or three point calibration curve; therefore you will need to
purchase two or three different standard solutions. Typical solutions have pH values of 4, 7, and
10.
Turbidity measurements are also based on a two or three point curve and should include a zero
value. It is very important to make sure that the turbidity standard solution is well mixed before
meter calibration. Since turbidity standards sometimes contain suspended solids, inaccurate
calibration can result if the standards are not properly mixed.
Field Meter Sampling
Measurement of turbidity and pH using a field meter is very similar. Figure D-2 shows an
example of an all-in-one field meter, which among other things, records pH and turbidity. Since
methods for specific field meters vary from model to model carefully follow the instructions
provided by the manufacturer. This pictorial guide provides an outline for the methods
appropriate for an all-in-one meter.
Measurements In-Stream
The simplest method is to place the sensor directly into the
waterway or flow path (Figure D-3) and record the results.
This will only work if there is significant runoff with a depth
greater than six inches, which may not be the case at a
construction site. With this method, it is important to not
only to have runoff with a significant depth but to sample in
a location that is representative of the entire flow. Avoid
puddles that might have formed off of the main drainage.
Measurements in a Sample Container
Most likely the sampling will take place in low flow
conditions so an intermediate container must be used.
The container should be clean and decontaminated.
Make sure to obtain a grab sample that represents site
runoff conditions.
If two or more runoff streams originating from the site
converge at one location downstream from the
construction site, then collect a grab sample at this
location.
Collect the field sample by holding the container in the
flow path (Figure D-4) until enough water is obtained to
fill the field meter’s receiving container. In some cases,
small, clean cups or sampling syringes may be needed
to collect an adequate sample volume.
Next pour the grab sample into the field meter’s receiving
container (Figure D-5)
Insert field meter into receiving container with the
sample water (Figure D-6). This step will differ based
on the design of the meter.
Wait for the pH and turbidity values to stabilize before
recording the results, which may take few moments.
Complete the field logs with results and
any important information to describe the sampling
settings. Include in the documentation any apparent
odor, color, clarity, sheen, and other visual
characteristics of the water sample.
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Hot Asphalt Asphalt Emulsion Liquid Asphalt (tack coat) Cold Mix Yes - Rainbow Surface or Brown Suspension Visually Observable - No Testing Required Crumb Rubber Yes – Black, solid material Visually Observable - No Testing Required Asphalt Products (Sections 37, 39, 92, 93, 94, and Special Provisions) Asphalt Concrete (Any Type) Yes - Rainbow Surface or Brown Suspension Visually Observable - No Testing Required EPA 150.1 (pH) SM 2310B (Acidity) Acids No pH Acidity Anions (acetic acid, phosphoric acid, sulfuric acid, nitric acid, hydrogen chloride) pH Meter Acidity Test Kit EPA 300.0 (Anion) Bleaches No Residual Chlorine Chlorine SM 4500-CL G (Res. Chlorine) Detergents Yes - Foam Visually Observable - No Testing Required TSP No Phosphate Phosphate EPA 365.3 (Phosphate) VOC None EPA 601/602 or EPA 624 (VOC) Cleaning Products Solvents No SVOC None EPA 625 (SVOC)
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Portland Cement (PCC) Yes - Milky Liquid Visually Observable - No Testing Required pH EPA 150.1 (pH) Masonry products No Alkalinity pH Meter Alkalinity or Acidity Test Kit SM 2320 (Alkalinity) Methyl Methacrylate EPA 625 (SVOC) Sealant (Methyl Methacrylate - MMA) No Cobalt Zinc None EPA 200.8 (Metal) Incinerator Bottom Ash Bottom Ash Steel Slag Foundry Sand Fly Ash Municipal Solid Waste No Aluminum Calcium Vanadium Zinc Calcium Test EPA 200.8 (Metal) EPA 200.7 (Calcium) Mortar Yes - Milky Liquid Visually Observable - No Testing Required Concrete Rinse Water Yes - Milky Liquid Visually Observable - No Testing Required Acidity SM 2310B (Acidity) Alkalinity SM 2320 (Alkalinity) pH EPA 150.1 (pH) VOC EPA 601/602 or EPA 624 (VOC) Portland Concrete Cement & Masonry Products (Section 27, 28, 29, 40, 41, 42, 49, 50, 51, 53, 63, 65, 72, 73, 80, 81, 83, 90, and Special Provisions) Non-Pigmented Curing Compounds No SVOC pH Meter Alkalinity or Acidity Test Kit EPA 625 (SVOC)
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Aluminum EPA 200.8 (Metal) TDS EPA 160.1 (TDS) Aluminum Sulfate No Sulfate TDS Meter Sulfate EPA 300.0 (Sulfate) Sulfur-Elemental No Sulfate Sulfate EPA 300.0 (Sulfate) Nitrate Nitrate EPA 300.0 (Nitrate) Phosphate Phosphate EPA 365.3 (Phosphate) Organic Nitrogen None EPA 351.3 (TKN) Fertilizers-Inorganic 4 No Potassium None EPA 200.8 (Metal) TOC EPA 415.1 (TOC) Nitrate EPA 300.0 (Nitrate) Organic Nitrogen EPA 351.3 (TKN) Fertilizers-Organic No COD Nitrate EPA 410.4 (COD) Natural Earth (Sand, Gravel, and Topsoil) Yes - Cloudiness and turbidity Visually Observable - No Testing Required Herbicide Herbicide Pesticide Pesticide None Check lab for specific herbicide or pesticide Alkalinity SM 2320 (Alkalinity) Landscaping and Other Products (Section 20, 24, and Special Provisions) Lime No pH pH Meter Alkalinity or Acidity Test Kit EPA 150.1 (pH)
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Paint Yes Visually Observable - No Testing Required VOC None EPA 601/602 or EPA 624 (VOC) Paint Strippers No SVOC None EPA 625 (SVOC) COD EPA 410.4 (COD) Resins No SVOC None EPA 625 (SVOC) Sealants No COD None EPA 410.4 (COD) COD EPA 410.4 (COD) VOC EPA 601/602 or EPA 624 (VOC) Solvents No SVOC None EPA 625 (SVOC) COD EPA 410.4 (COD) VOC EPA 601/602 or EPA 624 (VOC) Lacquers, Varnish, Enamels, and Turpentine No SVOC None EPA 625 (SVOC) VOC EPA 601/602 or EPA 624 (VOC) Painting Products (Section 12-3.08, 20-2.32, 50-1.05, 59, 91, and Special Provisions) Thinners No COD None EPA 410.4 (COD) Portable Toilet Waste Products Portable Toilet Waste Yes Visually Observable - No Testing Required
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Aerially Deposited Lead3 No Lead None EPA 200.8 (Metal) Petroleum Yes – Rainbow Surface Sheen and Odor Visually Observable - No Testing Required Contaminated Soil 5 Mining or Industrial Waste, etc. No Contaminant Specific Contaminant Specific – Check with laboratory Contaminant Specific – Check with laboratory Line Flushing Products Chlorinated Water No Total chlorine Chlorine SM 4500-CL G (Res. Chlorine) COD None EPA 410.4 (COD) Phenols Phenol EPA 420.1 (Phenol) Adhesives Adhesives No SVOC None EPA 625 (SVOC) Chloride Chloride EPA 300.0 (Chloride) TDS TDS Meter EPA 160.1 (TDS) Dust Palliative Products (Section 18) Salts (Magnesium Chloride, Calcium Chloride, and Natural Brines) No Cations (Sodium, Magnesium, Calcium) None EPA 200.7 (Cations) Antifreeze and Other Vehicle Fluids Yes - Colored Liquid Visually Observable - No Testing Required Sulfuric Acid None EPA 300.0 (Sulfate) Lead None EPA 200.8 (Metal) Batteries No pH pH Meter Alkalinity or Acidity Test Kit EPA 150.1 (pH) Vehicle Fuels, Oils, Lubricants Yes - Rainbow Surface Sheen and Odor Visually Observable - No Testing Required
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Organic Nitrogen None EPA 351.3 (TKN) BOD None EPA 405.1 (BOD) COD None EPA 410.4 (COD) DOC None EPA 415.1 (DOC) Nitrate Nitrate EPA 300.0 (Nitrate) Sulfate Sulfate EPA 300.0 (Sulfate) Polymer/Copolymer 6, 7 No Nickel None EPA 200.8 (Metal) Straw/Mulch Yes - Solids Visually Observable - No Testing Required Alkalinity Alkalinity SM 2320 (Alkalinity) Lignin Sulfonate No TDS TDS Meter EPA 160.1 (TDS) COD EPA 410.4 (COD) Psyllium No TOC None EPA 415.1 (TOC) COD EPA 410.4 (COD) TOC EPA 415.1 (TOC) Guar/Plant Gums No Nickel None EPA 200.8 (Metal) pH pH Meter, Alkalinity or Acidity Test Kit EPA 150.1 (pH) Calcium Calcium EPA 200.7 (Calcium) Sulfate Sulfate EPA 300.0 (Sulfate) Aluminum Barium Manganese Soil Amendment/Stabilization Products Gypsum No Vanadium None EPA 200.8 (Metal)
Pollutant Testing Guidance Table 1 Category Construction Site Material Visually Observable? Pollutant Indicators 2 Suggested Analyses Field 3 Laboratory Arsenic Total Chromium Copper Ammoniacal-Copper-Zinc-Arsenate (ACZA) Copper-Chromium-Arsenic (CCA) Ammoniacal-Copper-Arsenate (ACA) Copper Naphthenate No Zinc Total Chromium EPA 200.8 (Metal) Treated Wood Products (Section 58, 80-3.01B(2), and Special Provisions) Creosote Yes - Rainbow Surface or Brown Suspension Visually Observable - No Testing Required Notes: 1. 1 If specific pollutant is known, analyze only for that specific pollutant. See MSDS to verify. 2. For each construction material, test for one of the pollutant indicators. Bolded pollutant indicates lowest analysis cost or best indicator. However, the composition of the specific construction material, if known, is the first criterion for selecting which analysis to use. 3. See www.hach.com, www.lamotte.com, www.ysi.com and www.chemetrics.com for some of the test kits 4. If the type of inorganic fertilizer is unknown, analyze for all pollutant indicators listed. 5. Only if special handling requirements are required in the Standard Special Provisions for aerially deposited lead (ADL) 6. If used with a dye or fiber matrix, it is considered visually observable and no testing is required. 7. Based upon research conducted by Caltrans, the following copolymers/polymers do not discharge pollutants and water quality sampling and analysis is not required: Super Tak™, M-Binder™, Fish Stik™, Pro40dc™, Fisch-Bond™, and Soil Master WR™.
ACRONYMS: BOD – Biochemical Oxygen Demand COD – Chemical Oxygen Demand DOC – Dissolved Organic Carbon EPA – Environmental Protection Agency HACH – Worldwide company that provides advanced analytical systems and technical support for water quality testing. SM – Standard Method SVOC – Semi-Volatile Organic Compounds TDS – Total Dissolved Solids TKN – Total Kjeldahl Nitrogen TOC – Total Organic Carbon TSP – Tri-Sodium Phosphate VOC - Volatile Organic Compounds REFERENCES: Construction Storm Water Sampling and Analysis Guidance Document, California Stormwater Quality Task Force, October 2001. Environmental Impact of Construction and Repair Materials on Surface and Ground Waters, Report 448, National Cooperative Highway Research Program, 2001 Soil Stabilization for Temporary Slopes, Environmental Programs, California Department of Transportation, October 1, 1999. Statewide Storm Water Management Plan, Division of Environmental Analysis, California Department of Transportation, April 2002. Statewide Storm Water Quality Practice Guidelines, Environmental Program, California Department of Transportation, August 2000. Soil Stabilization for Temporary Slopes and District 7 Erosion Control Pilot Study, June 2000. Stormwater Monitoring Protocols, Guidance Manual, California Department of Transportation, May 2000. SWPPP/WPCP Preparation Manual, Caltrans Storm Water Quality Handbooks, February 2003.
SAMPLING & ANALYSIS
Sampling & Analysis for Risk Level 2
Effluent sampling for turbidity and pH (minimum 3 samples per day per discharge point per
qualifying rain event)
Contained rain water (at time of discharge)
Non-visible pollutants, spills and/or BMP failures (within first 2 hours of discharge from site)
Other (as required by dewatering permits, RWQCB or TMDLs)
Sampling & Analysis for Risk Level 3
Effluent sampling for turbidity and pH (minimum 3 samples per day per discharge point per
qualifying rain event)
Suspended sediment concentration (SCC) (required only if turbidity exceeds NEL, minimum 3
samples per day per discharge point, per qualifying rain event)
Receiving water sampling for turbidity and SCC and/or pH (if NEL is exceeded and project has
a direct discharge to receiving water, minimum 3 samples per day per discharge point, per
qualifying rain event)
Bioassessment (if project is 30 acres or more and directly discharges to a wadeable stream,
conduct up- and down-stream of point of discharge to receiving water, conduct before start of
construction activity and after completion)
Contained rain water (at time of discharge)
Non-visible pollutants, spills and/or BMP failures (within first 2 hours of discharge from site)
Other (as required by dewatering permits, RWQCB or TMDLs)
Copies of all inspection and sampling reports are to be documented in the SWPPP and included in the
Annual Report. All sampling data is required to be entered into SMARTS through the Annual Reports
and Ad Hoc Monitoring Reports interface prior to submitting the Annual Report. Refer to the SWPPP
Section 7.6 for additional sampling and monitoring requirements, and Section 7.9 for reporting
requirements and records retention. Instructions for submitting ad hoc monitoring reports are
included in Appendix U.
In the event that the storm event average of the samples exceeds an applicable NAL (see Section 7.3),
Risk Level 2 and 3 dischargers must electronically submit all storm event sampling results to the
SWRCB’s SMARTS no later than 10 days after the conclusion of the storm event. (Note, however that
Risk Level 3 dischargers must submit all field data regardless of exceedance status within five days of
the storm event conclusion). In addition, the RWQCBs may request the submittal of an NAL
Exceedance Report through SMARTS. The discharger must certify each NAL Exceedance Report in
accordance with the General Permit’s Special Provisions for Construction Activity.
In the event that the daily average of the samples exceed an applicable NEL (see Section 7.3), Risk
Level 3 dischargers must electronically submit a NEL Violation Report to the SWRCB’s SMARTS within
24 hours of identifying the exceedance. ATS dischargers must submit an NEL Violation Report to the
SWRCB’s SMARTS within 24 hours after the NEL exceedance has been identified. The discharger must
certify each NEL Violation Report in accordance with the General Permit’s Special Provisions for
Construction Activity (General Permit Section IV).
Instructions for submitting ad hoc monitoring reports are included in Appendix U.
Risk Level 2
Effluent Sampling Field Log Sheets
Construction Site Name: WDID:
Sampler: Date: Time Start:
Sampling Event Type: □ Stormwater □ Non-stormwater □ Non-visible pollutant
Field Meter Calibration
pH Meter ID No./Desc.:
Calibration Date/Time:
Turbidity Meter ID No./Desc.:
Calibration Date/Time:
Field pH and Turbidity Measurements
Discharge Location Description pH Turbidity Time
Grab Samples Collected
Discharge Location Description Sample Type Time
Additional Sampling Notes:
Time End:
Risk Level 2
Effluent Sampling Field Log Sheets
Construction Site Name: WDID:
Sampler: Date: Time Start:
Sampling Event Type: □ Stormwater □ Non-stormwater □ Non-visible pollutant
Field Meter Calibration
pH Meter ID No./Desc.:
Calibration Date/Time:
Turbidity Meter ID No./Desc.:
Calibration Date/Time:
Field pH and Turbidity Measurements
Discharge Location Description pH Turbidity Time
Grab Samples Collected
Discharge Location Description Sample Type Time
Additional Sampling Notes:
Time End:
SAMPLE ACTIVITY LOG
GENERAL INFORMATION
Project Name
WDID No.
Contractor
Arrival Time Departure Time
Weather Condition
Construction Type
Prior to forecast rain After a rain event Sampling Type
(Check Applicable) 24-hr intervals during extended rain Other
Season
(Check Applicable) Rainy Non-Rainy
Storm Start Date & Time: Storm Duration (hrs):
Storm Data Time elapsed since last storm
(Circle Applicable Units) Min. Hr. Days
Approximate Rainfall
Amount (mm)
For rainfall information: http://cdec.water.ca.gov/weather.html or http://www.wrh.noaa.gov/wrhq/nwspage.html
SAMPLE LOG
Sample Identification Sample Location Sample Collection
Date and Time
Specific sample locations descriptions may include: 30m upstream from discharge at eastern boundary, runoff from northern waste storage area,
downgradient of inlet 57 at kilometer post 36, etc.
FIELD ANALYSIS
Yes No
Sample Identification Test Result
SAMPLE ACTIVITY LOG
GENERAL INFORMATION
Project Name
WDID No.
Contractor
Arrival Time Departure Time
Weather Condition
Construction Type
Prior to forecast rain After a rain event Sampling Type
(Check Applicable) 24-hr intervals during extended rain Other
Season
(Check Applicable) Rainy Non-Rainy
Storm Start Date & Time: Storm Duration (hrs):
Storm Data Time elapsed since last storm
(Circle Applicable Units) Min. Hr. Days
Approximate Rainfall
Amount (mm)
For rainfall information: http://cdec.water.ca.gov/weather.html or http://www.wrh.noaa.gov/wrhq/nwspage.html
SAMPLE LOG
Sample Identification Sample Location Sample Collection
Date and Time
Specific sample locations descriptions may include: 30m upstream from discharge at eastern boundary, runoff from northern waste storage area,
downgradient of inlet 57 at kilometer post 36, etc.
FIELD ANALYSIS
Yes No
Sample Identification Test Result
SAMPLE ACTIVITY LOG
GENERAL INFORMATION
Project Name
WDID No.
Contractor
Arrival Time Departure Time
Weather Condition
Construction Type
Prior to forecast rain After a rain event Sampling Type
(Check Applicable) 24-hr intervals during extended rain Other
Season
(Check Applicable) Rainy Non-Rainy
Storm Start Date & Time: Storm Duration (hrs):
Storm Data Time elapsed since last storm
(Circle Applicable Units) Min. Hr. Days
Approximate Rainfall
Amount (mm)
For rainfall information: http://cdec.water.ca.gov/weather.html or http://www.wrh.noaa.gov/wrhq/nwspage.html
SAMPLE LOG
Sample Identification Sample Location Sample Collection
Date and Time
Specific sample locations descriptions may include: 30m upstream from discharge at eastern boundary, runoff from northern waste storage area,
downgradient of inlet 57 at kilometer post 36, etc.
FIELD ANALYSIS
Yes No
Sample Identification Test Result
SAMPLE ACTIVITY LOG
GENERAL INFORMATION
Project Name
WDID No.
Contractor
Arrival Time Departure Time
Weather Condition
Construction Type
Prior to forecast rain After a rain event Sampling Type
(Check Applicable) 24-hr intervals during extended rain Other
Season
(Check Applicable) Rainy Non-Rainy
Storm Start Date & Time: Storm Duration (hrs):
Storm Data Time elapsed since last storm
(Circle Applicable Units) Min. Hr. Days
Approximate Rainfall
Amount (mm)
For rainfall information: http://cdec.water.ca.gov/weather.html or http://www.wrh.noaa.gov/wrhq/nwspage.html
SAMPLE LOG
Sample Identification Sample Location Sample Collection
Date and Time
Specific sample locations descriptions may include: 30m upstream from discharge at eastern boundary, runoff from northern waste storage area,
downgradient of inlet 57 at kilometer post 36, etc.
FIELD ANALYSIS
Yes No
Sample Identification Test Result
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 1
How to Submit an Ad Hoc Report for
Construction Site Monitoring
State Water Board Order No. 2009-009-DWQ, the Construction General Permit (CGP)
is a National Pollutant Discharge Elimination System (NPDES) permit that implements
Federal regulations (40 CFR § 122.44) requiring enrollees to self-report effluent
monitoring for their covered discharges. The CGP requires some permittees to self-
report effluent monitoring information under specific circumstances. For example, if the
permittees are Risk Level or Type 2 then they are subject to Numeric Action Levels
(NALs). If the permittees are Risk Level or Type 3 then they are subject to Numeric
Effluent Limitations (NELs). All Risk Level and Type 2 and 3 CGP permittees must
report results of their sampling and analysis of effluent discharges to characterize
discharges associated with construction activity from the entire area disturbed by the
project. Risk Level and Type 1 permittees must conduct water quality monitoring of
their effluent only if non-visible pollutants are present on the project.
The CGP requires both annual (September 1 of each year) and ad hoc electronic
reporting of this information, depending on the circumstances. These instructions are
specifically for ad hoc reporting. We will produce similar instructions for annual
reporting as soon as possible.
All of this effluent monitoring information must be reported electronically through the
Stormwater Multi Application & Report Tracking System (SMARTS) by the deadlines
listed below:
Risk Level/LUP
Type
Non-Visible
Monitoring
Results1
Effluent
Monitoring
Results
NAL Exceedance
Results
NEL
Exceedance
Results
1 Prior to Annual Report Submittal N/A N/A
2 Prior to Annual Report Submittal 10 days after storm
event conclusion
N/A
3 5 days after storm event conclusion
For more information on the CGP:
http://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.shtml
If you have any questions please contact the Storm Water help desk at
smarts@wateboards.ca.gov or 1-866-563-3107.
1 Up to date analytical data must be included in the SWPPP
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 2
Instructions
Objectives
Learn how to enter effluent monitoring data for Construction sites.
Prerequisites
Best used in Internet Explorer.
Data reviewed by a Qualified SWPPP Practitioner.
Logging into SMARTS
1. Open Internet Explorer and visit https://smarts.waterboards.ca.gov/
NOTE: This screen provides notifications regarding system
maintenance times and/or other important information about
SMARTS.
2. Enter your User ID & Password.
NOTE: The User ID and Password are case sensitive.
Ad Hoc Report
1. After logging in, select the menu item:
"Annual Report"
NOTE: Ad Hoc reports for monitoring data are part of the Annual
Report. At the end of the reporting year all Ad Hoc reports will be
submitted as part of the Annual Report.
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 3
2. Select the Construction Site to begin the Ad Hoc
Report
NOTE: Both Construction & Industrial Annual Reports are
accessible via this search screen.
3. Begin a New Ad Hoc Report
a. Select “Event Type”
1) Rain Event: Storm Event producing 0.50 inches of
precipitation or more.
2) Non-Storm Water Discharge Event: All other discharges.
b. Enter “Event Start Date/Time” (Time is optional)
c. Enter “Event End Date/Time” (Time is optional)
d. Enter “Rain fall amount” in inches
1) Recorded from onsite rain gauge or nearby governmental
rain gauge..
e. Enter “Number of Business Days” during rain event
1) Effluent monitoring is only required during normal site
business hours.
f. Click on “Start New Event Report”
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 4
NOTE: Ad hoc reports may be saved at anytime and users can
return at a later time to complete the submittal. Ad Hoc reports
associated with this WDID are listed at bottom of the screen under
“Ad Hoc Reports”
4. General Information
Owner/Site information to verify you are working in the correct
WDID. If the information needs to be updated, click on “Click here
to go to NOI screens” link.
a. Click “Next” to continue
5. Monitoring Location Tab
In this tab you create & maintain monitoring locations on the project
site.
a. Click the "Create a New Monitoring Location" button if the
appropriate monitoring location has not been created.
b. Enter Monitoring Location Information
1) Select “Discharge Point Type” from drop down
a) Effluent Monitoring
b) Influent Monitoring
c) Internal Monitoring
d) Receiving Water Monitoring
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 5
2) Enter “Monitoring Location Name”
3) Enter “CDF Identifier”
NOTE: For future use to link data from a MS Excel
spreadsheet template to upload all monitoring data at
one time.
4) Enter “Description” (not required)
NOTE: Although the "Description" field is not required,
it is recommended that a description of the monitoring
location be entered (e.g. NW corner outfall)
5) Enter “Latitude” in decimal degrees
6) Enter “Longitude” in decimal degrees
7) Select “Accuracy” (optional)
8) Select “Datum” (optional)
9) Select “Status”
a) Active
b) In-Active
NOTE: For different rain events, monitoring locations
may not discharge so you can choose to in-activate the
monitoring location.
10) Click "Save" and repeat steps i – ix to add all
monitoring locations
11) Click “Next” to continue to Raw Data tab.
6. Raw Data Tab
All monitoring data will be entered in this tab.
a. Select “Enter New Sample”
NOTE: The basic parameters and parameters specific to the
site will be populated in the table.
b. Select “Monitoring Location” from the drop down box for this
sample.
c. Enter “Sample Date/Time”
The date and time must be in the following format:
MM/DD/YYYY HH:MM. There must be a space in between the
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 6
date and time, and the time must be in 24-hour format (e.g. to
enter March 1, 2006 at 3pm, enter 03/01/2006 15:00).
d. Enter the “Qualified SWPPP Practitioner’s” name
e. Enter “% of Total Discharge”
This is the percent contribution of discharge point as compared
to the sum of all discharge points (100%). Can be area or flow
weighted.
f. Enter the results for the parameter(s) listed
1) If a pH sample is not required, enter zero for the result.
Click "Save & Stay". A hyperlink will appear on the
right to "delete". Click the hyperlink to delete the
parameter.
Non-Visible Pollutant/Non-Storm Water Discharge Sample
2) To add additional parameters for a non-visible
pollutant discharge or non-storm water sample, click
the "Add Additional Parameter" button and enter the
additional parameters to the table.
3) Enter the Parameter Name and click “Search”
4) When a parameter result(s) appears, choose the
appropriate selection by clicking the “Select” hyperlink
under the "Action" column.
5) Selected parameter is added to the Raw Data table
6) Enter the result for this parameter
7) If a sample result is marked as ND (non-detect), the
user must locate the MDL (Method Detection Limit) on
the laboratory report, change the Result Qualifier to
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 7
"<", enter the MDL value, and then again in the MDL
column. Also, if the sample result is marked as
"TRACE" amounts detected, change the Result
Qualifier to "<", enter the most restrictive value (either
PQL or MDL), and then again in the MDL column.
8) If the sample result units do not match the units listed
in SMARTS, convert the result units by using the "Unit
Conversions" table. Click the "Unit Conversions"
hyperlink to view this table.
9) Click "Save & Stay"
10) Repeat Steps iii – ix to add additional parameters.
NOTE: The following are instructions on each “Save” button:
- “Save & Stay”: Saves any changes that have
been made on the screen and will remain on the
screen.
- “Save & Add New Sample”: Saves any changes
that have been made on the screen and clears
the data fields for a new sample record. This is
to be used when multiple monitoring locations
and/or samples need to be entered.
- “Save & Back to List”: Saves any changes that
have been made on the screen and takes the
user back to the “Create New Event” screen.
7. Data Summary Tab
This tab allows users to review all data entered on the Raw Data tab.
Return to the Raw Data tab if edits are necessary
Click “Next” when done reviewing the data.
a. Click “Back” to go to Raw Data tab.
8. Daily Average Tab
Enter the daily average for pH and/or turbidity for each business day of the
rain event. The number of days is automatically populated based on the
business days entered when starting the report.
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 8
”
a. Enter “Business Day Date”
b. Enter “pH” average
c. Enter “Turbidity” average
d. Enter “Calculation Summary”
A summary is required so Water Board staff can view what
individual samples were used to calculate the submitted
average.
e. Follow steps a – d for additional business days.
f. Click “Save” when complete.
g. Click “Next” to go to Attachment Tab
9. Attachments Tab
Scanned or electronic documents required for the SMARTS report
are attached using this tab.
NOTE: Laboratory reports are required to be attached to the
report to validate data.
a. Click “Upload Attachment”
NOTE: Separate Browser Window will pop-up. Make sure
pop-up blockers are turned off.
b. Select the appropriate “Attachment File Type” from the drop
down menu
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 9
c. Give the file an “Attachment Title”
d. If necessary, enter a “File Description”
e. If the document is large, you can upload in portions. i.e. 1 of 5,
2 of 5 etc…
f. Click “Browse” to locate the “File Name” on your computer.
Click “Open” to select the file.
g. Click “Upload” to upload the attachment to SMARTS.
h. Once the file has successfully uploaded, it will populate in the
Attachment table on the bottom of the screen.
i. Close the attachment window
j. Click “Next” to go to the Certify Tab
10. Certify Tab
a. Click “Perform Completion Check”
1) Any mandatory fields without data will be displayed.
a) Correct any errors and Perform Completion
Check again
2) If no errors are found:
a) You can choose to “Review & Print the Ad Hoc
report” for your files
b) Mark the Certification Statement and click the
“Certify Ad Hoc Report.”
a. If you are a Data Entry Person, notify the
Legally Responsible Person and/or
Approved Signatory to certify the Ad Hoc
Report.
11. Ad Hoc Report(s) table
Construction Ad Hoc Reporting ‐ 1/18/2011 revised Page 10
a. Ad Hoc reports that are “In-Progress” or “Submitted” are
listed in the Ad Hoc reports table.
b. To continue an “In-Progress” or view a “Submitted” report,
click on the “Event ID” to open the report.
c. “In-Progress” reports can be deleted by clicking the “delete”
link on the right.
d. “Submitted” reports may be remanded if changes are required
after the LRP or Approved Signatory certified the report.