HomeMy WebLinkAboutPD 14-01; La Costa Valley Middle School; SWPP; 2014-07-01CITY OF CARLSBAD
SW 14-95
I R fi I I I i i fi
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
Carlsbad, California
RISK LEVEL: 2
Prepared For
San Dieguito Untion High School Districf
710 Encinitas Blvd
Encinitas, CA 92024
Prepared By
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 1 70
San Diego, CA 92122
858.554.1500
v/v/w. f u scoe. CO m
Project Manager: Bryan D. Smith
Date Prepared:
Date Revised:
Job Number:
WDID: 9 37C371732
July 2014
02601-003-02
CITY OF CARLSBAD
SW 14-95
RECEIVED
FEB 24 2015
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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
Carlsbad, California
RISK LEVEL: 2
Prepared For
5o77 Dieguito Unfion High School Districf
710 Encinitas Blvd
Encinitas, CA 92024
Prepared By
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 1 70
San Diego, CA 92122
858.554.1500
wwrw.fuscoe.com
Project Manager: Bryan D. Smith
Date Prepared:
Date Revised:
Job Number:
WDID: 9 37C371732
July 2014
02601-003-02
July 2014
SAN DIEGUITO UNTION HIGH SCHOOL DISTRICT
710 Encinitas Blvd
Encinitas, CA 92024
Dear Sir or Madam:
This letter has been enclosed to inform you of your responsibilities as the owner of this SWPPP. The SWPPP is inlended 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 SVVPPP 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 SKAARTS).
3. Insert a copy of the Tentative Construcfion 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. Storm Water Effluent Sampling must be performed for turbidity and pH for all storm events exceeding 'A" of
rainfall at time of discharge. Refer to section 7.6 for further details on sampling.
9. Spill Reports must be filled out when they occur at the project site (Appendix N).
10. Periodically distribute the Memorandum to Employees in Appendix J.
11. Have all subcontractors sign a copy of the Subcontractor Notification Letter in Appendix M.
12. Complete and submit the Annual Report to the SWRCB prior to September 1, 2012 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,
EUSCOE EtS<?fNEERlNG, INC. ^USCOEp^GINEERlNG, It
tmma C. Smith
Environmental Scientist
6390 Greenwich Drive, Suite 170, San Diego, CA 92122 tel 858.554.1500 fax 858.597.0335 www.fuscoe.com
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
SWPPP CERTIFICATION
QUALIFIED SWPPP DEVELOPER (QSD) CERTIFICATION
"I certify that this document and all attachments were prepared under my direction or
supervision in accordance v^ith a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons v^ho 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).
July 8, 2014
Signature Date
Emma C. Smith, CPESC, QSD
Environmental Scientist
CPESC #6440
QSD #20121, Exp. 8.30.13
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 1 70
San Diego, CA 92122
858.554.1500
esmith@fuscoe.com
FUSCOE ENGINEERING, INC.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT •Ju'-'^
OWNER/LEGALL Y RESPONSIBLE PERSON (LRP) CERTIFICA TION
"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 Dote
Russ Thornton
Chief Facilities Officer
San Dieguito Unified High School District
710 Encinitas Blvd.
Encinitas, CA 92024
760.753.6491 x5600
Russ.Thornton@sduhsd.net
NOTE:
TO BE CERTIFIED ONLINE VIA SWRCB SAAARTS WEBSITE.
FUSCOE ENGINEERING, INC.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
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 9
2.1.6. Environmentally Sensitive Site Conditions 12
2.1.7. Site Plan 12
2.2. STORM WATER RUN-ON FROM OFF-SITE AREAS 12
2.3. FINDINGS OF THE CONSTRUCTION SITE SEDIMENT & RECEIVING WATER RISK
DETERMINATION 12
2.3.1. Site Sediment Risk 13
2.3.2. Receiving Water Risk 15
2.3.3. Risk Determination 16
2.4. CONSTRUCTION SCHEDULE 16
2.5. POTENTIAL CONSTRUCTION SITE POLLUTANT SOURCES 16
2.5.1. Known Sources of Contamination On-Site 16
2.5.2. Potential Areas for Storm Water Contamination 16
2.5.3. Materials Inventory 18
2.5.4. Pre-Construction Control Measures 19
2.6. IDENTIFICATION OF NON-STORM WATER DISCHARGES 19
3. BEST MANAGEMENT PRACTICES (BMPS) 21
3.1. SCHEDULE FOR BMP IMPLEMENTATION 21
3.2. SWPPP EXHIBITS 21
3.3. EROSION CONTROL AND SEDIMENT CONTROL 21
3.3.1. Erosion Control BMPs 21
3.3.2. Sediment Control BMPs 24
FUSCOE ENGINEERING, INC. m
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 2014
3.3.3. Tracking Control BMPs 26
3.3.4. Wind Erosion Control BMPs 27
3.4. NON-STORM WATER AND MATERIAL MANAGEMENT 27
3.4.1. Non-Storm Water Management BMPs 28
3.4.2. Material and Waste Management BMPs 30
3.5. POST-CONSTRUCTION STORM WATER MANAGEMENT MEASURES 32
4. BMP INSPECTION, MAINTENANCE, AND RAIN EVENT ACTION PLANS (REAPS) 36
4.1. BMP INSPECTION AND MAINTENANCE 36
4.2. RAIN EVENT ACTION PU\NS 37
5. TRAINING 38
5.1. OVERVIEW 38
5.2. TRAINING REQUIREMENTS 38
5.2.1. Qualified SWPPP Developer (QSD) 38
5.2.2. Qualified SWPPP Practitioner (QSP) 39
5.2.3. Employee & Subcontractor Training 39
6. RESPONSIBLE PARTIES AND OPERATORS 41
6.1. RESPONSIBLE PARTIES 41
6.2. CONTRACTOR LIST 41
7. CONSTRUCTION SITE MONITORING PROGRAM (CSMP) 42
7.1. PURPOSE 42
7.2. APPLICABILITY OF PERMIT REQUIREMENTS 42
7.3. NUMERIC ACTION LEVELS, EFFLUENT LIMITATIONS, AND DISCHARGE PROHIBITIONS 43
7.4. SAFETY 45
7.5. VISUAL MONITORING (INSPECTIONS) 45
7.5.1. BMP Inspections 45
7.5.2. Qualifying Rain Event Inspections 46
7.5.3. Non-Storm Water Discharge Inspections 47
7.6. WATER QUALITY SAMPLING AND ANALYSIS 48
7.6.1. Potential Pollutant Sources 48
7.6.2. Monitoring Constituents by Risk Level 49
7.6.3. Sampling Locations 50
7.6.4. Sample Collection and Handling 50
7.6.5. Analytical Methods and Reporting Limits 53
7.6.6. Exemptions 54
7.6.7. Bioassessment 55
7.7. WATERSHED MONITORING OPTION 55
7.8. QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC) 55
7.8.1. Field Logs 55
7.8.2. Clean Sampling Techniques 55
7.8.3. Sample Chain-of-Custody 56
7.8.4. Data Verification 56
7.9. REPORTING REQUIREMENTS AND RECORDS RETENTION 57
7.9.1. Numeric Action Level Exceedance Report 57
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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
7.9.2. Numeric Effluent Limitation (NEL) Violation Report 58
7.9.3. Annual Report 58
7.9.4. Records Retention 59
7.10. ACTIVE TREATMENT SYSTEMS (ATS) REQUIREMENTS 60
7.10.1. Types of ATS 60
7.10.2. ATS Plan 61
7.10.3. Required Training for ATS Operation and Monitoring 61
7.1 0.4. Visual Monitoring (Inspection) 62
7.10.5. Operational and Compliance Monitoring 62
7.10.6. Reporting and Records Retention 63
8. APPENDICES 64
FUSCOE ENGINEERING, INC.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
APPENDICES
Appendix A
Appendix B
Bl
B2
B3
B4
B5
B6
Appendix C
Cl
C2
C3
C4
C5
Append x D
Append X E
Append X F
Append xG
Append X H
Append X 1
Append xJ
Append X K
Append X L
Append xM
Append X N
Append xO
Append X P
Append xQ
Append X R
Append xS
Append xT
Append X U
Append xV
Construction General Permit
Exhibits
Vicinity Mop
SWPPP Exhibits
Erosion Control Plan, Demolition Plan & Excavation Plan (as appropriate)
Sampling Locations Plan
Post-Construction (WQMP) Plan
Hydrology Mops
Submitted Permit Registration Documents:
PRD Instructions
NOI
Risk Assessment (Sediment and Receiving Water Risk Determination)
Site Map (Including Vicinity Map)
Signed Certification Statement/Fee Statement & WDID Receipt
Submitted Changes to PRDs / COIs (due to change in ownership or acreage)
SWPPP Amendment Log & SWPPP Amendments
Annual Reporting Requirements
Runoff Coefficient and Run-on Computation Sheets
Construction Activity Schedule & BMP Implementation Schedule
CASQA BMP Handbook Fact Sheets
Training Documentation Forms & Sample Memorandum to Employees
Responsible Parties
Contractors and Subcontractors
Sample Subcontractor Notification Letter and Log
Significant Spill Reports
Quick Reference Disposal Alternatives
Visual Inspection Forms, Reports & Rain Gouge Log
Rain Event Action Plans (REAPs)
Guidance on Field Measurements
Pollutant Testing Guidance Table
Storm Water Sampling Forms
How to Submit on Ad Hoc Report for Construction Site Monitoring
NAL/NEL Exceedance Site Evaluations and Non-Compliance Reports
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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 2014
TABLES
Table 2.1 Site Impervious Area Composition 12
Table 2.2 Off-Site Run-on Summary Errori Bookmark not defined.
Table 2.3 Combined Construction Site Risk Level Matrix 13
Table 2.4 Sediment Risk Factor Summary 15
Table 2.5 Potential Pollutant Sources from Construction Areas and Activities 1 7
Table 2.6 Materials Inventory and Associated Pollutants of Concern 18
Table 3.1 Erosion Control BMPs 22
Table 3.2 Sediment Control BMPs 24
Table 3.3 Tracking Control BMPs 26
Table 3.4 Wind Erosion Control BMPs 27
Table 3.5 Non-Storm Water Management BMPs 28
Table 3.6 Material and Waste Management BMPs 30
Table 3.7 Non-Structural Source Control BMPs 33
Table 3.8 Structural Source Control BMPs 34
Table 3.9 Structural Treatment Control BMPs 35
Table 6.1 List of Responsible Parties 41
Table 6.2 List of Contractors 41
Table 7.1 Monitoring Requirements by Risk Level 42
Table 7.2 Analytical Methods and Protocols for General Permit Constituents 53
Table 7.3 Potential Non-Visible Pollutants based on Common Construction Activities 54
Table 7.4 Summary of ATS Discharge Limitations 60
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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 2014
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
E^P 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 Technologi
NOAA National Oceanic and Atmospheric Administration
NOEC No Observed Effect Concentration
NOl 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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
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
TMDL
TSP
TSS
USDA
VOC
WDID
WDR
Total Dissolved Solids
Total Maximum Daily Load
Trisodium Phosphate
Total Suspended Solids
United States Department of Agriculture
Volatile Organic Compounds
Waste Discharge Identification
Waste Discharge Requirement
FUSCOE ENGINEERING, INC. IX
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
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 La Costa Valley Site Development in the City of Carlsbod. 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 presen/e 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 ore intended to reduce or eliminate pollutants after construction is
completed; and
FUSCOE ENGINEERING, INC.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
• 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 foliowing
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 ore required for submittal, copies of which shall be
included in this SWPPP (Appendix C).
Notice of Intent (NOl)
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
Dote Issued:
WDID Number: 9 37C371732 (to be completed upon issuance)
1.4. SWPPP AVAILABILITY AND IMPLEMENTATION
This SWPPP shall remain on the construction site premises at oil 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
FUSCOE ENGINEERING, INC.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 2014
• 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), orthe 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 (Secfions I.J.69 and IV.C) 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 ore 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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
• 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 hove 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
on 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 ore 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
1^ each year (beginning September 1, 2011) 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
FUSCOE ENGINEERING, INC.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 2014
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 ILC) 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 (COl) 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 hove been notified of applicable
requirements to obtain permit coverage
If the project acreage has increased, dischargers shall moil 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 hove 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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 201 4
• 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 Reprot
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 11.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 ore made part of this SWPPP by reference:
• State Water Resources Control Board (SWRCB) Order No. 2009-0009-DWQ,
Notional Pollutant Discharge Eliminotton 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 2010 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 Son Diego Basin (9).
September 8, 1994.
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2. PROJECT INFORMATION
2.1. PROJECT AND SITE DESCRIPTION
2.1.1. Project Descnption
The La Costa Valley Site Development project proposes to construct on access road, three
buildings, athletic fields, & associated parking. The proposed buildings ore a gymnasium, electrical
equipment room, and restrooms. The 28.03 acre project will include the demolition and removal of
an existing asphalt pedestrian path, existing desilting basins and associated infrastructure. The
proposed improvements will include new landscaping, flow through planters, pen/ious pavement,
permeable pavers, sidewalk, maintenance access rood, storm drain infrastructure and other
improvements associated with Athletic Field Facilities.
The project site is bordered to the north by Calle Barcelona Road, to east and south by single family
residential, and to the west by Coastline Community Church. The immediate surrounding area is
comprised primarily of single family residential. The project site was dedicated to the Son Dieguito
Union High Scholl District in lieu of development fees as part of the Arroyo La Costa Development.
2.1.2. Site Description
The site is currently undeveloped with the exception of three public storm drain laterals & one
42" RCP public storm drain trunk line. The three public storm drain laterals were installed
during the previous mass-grading operation to serve temporary desilting basins located onsite.
The proposed project is located within the Batiquitos Hydrologic Sub-Area within the San
Marcos Hydrologic Area of the Carlsbod Hydrologic Unit. The corresponding number
designation is 904.51.
According to Project' Clean Water's website, "The Carlsbad Hydrologic Unit (HU) is
approximately 210 square miles in area extending from fhe headwaters above iake Wolhford
in the east to fhe Pacific Ocean in the west, and from Vista and Oceanside in fhe north to
Solana Beach, Escondido, and the community of Rancho Santa Fe to the south. The cifies of
Carlsbad, San Marcos, and Encinitas are entirely within fhis HU. There are numerous
important sudace hydrologic features within the Cadsbad HU including four unique coastal
lagoons, three major creeks, and two large water storage reservoirs. The HU contains four
major, roughly parallel hydrologic areas (HAs). From north to south they are the Buena Vista
(901.2), the Agua Hedionda (904.3), the Batiquitos (904.5), and the San Elijo (904.6) HAs.
Two smaller HAs, the Loma Alta (904.1) and the Canyon de las Encinas (904.4) are also
within the Carlsbad HU. "
"The largest jurisdictions in terms of land area in the Cadsbad HU are the unincorporated San
Diego County areas (66 sq. miles), the cities of Cadsbad (39 sq. miles) and Son Marcos (24
sq. miles), and an approximately 27 square mile portion of the City of Escondido. The cities
of Cadsbad, San Marcos, and Encinitas are located entirely within the HU. Approximately
48% of the Cadsbad HU is urbanized. The dominant land uses are residential (29%),
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commercial/industrial (6%), freeways and roads (12%), agriculture (12%), and
vacant/undeveloped (32%)."
"The Agua Hedionda, Buena Vista, and San Elijo lagoons are experiencing impairments to
beneficial uses due to excessive coliform bacteria and sediment loading from upsfream
sources. These coastal lagoons represent crifical regional resources that provide freshwater
and estuarine habitats for numerous plant and animal species. Other water bodies in the
Cadsbad HU have been identified as impaired on the California 303(d) list for elevated
coliform bacteria including several locations in fhe Pacific Ocean near creek and lagoon
outlets."
"The population of the Cadsbad HU is approximately 500,000 residents making if the third
most densely populated in San Diego County behind the Pueblo San Diego and the
Penasquitos HUs. A high percentage of the undeveloped land is in private ownership and the
population of the Cadsbad HU is projected to increase to over 700,000 residents by 2015.
Effective planning measures will be needed fo prevent this rapid development from further
degrading water quality in this region of San Diego County. "
(Source: http://www.projectcleanwater.org/index.php?optton = com_content&view=article&id =
5<emid=40, accessed October, 2011)
San Marcos Creek is listed as a water quality limited segment in the 2010 Integrated Report
(Clean Water Action Section 303(d) List / 305(b) Report) list of impaired water bodies which
are discussed in more detail in Section 2.14. Currently, there ore TMDLs for Son Marcos
Creek for DDE (Dichlorodiphenyldichloroethylene), phosphorous, sediment toxicity and
selenium which all have a Category 5A TMDL requirement status, meaning that a TMDL is still
required.
2.1.3. Existing Drainage Conditions
The existing 42" RCP public storm drain located on the western edge of the site was installed
to convey run-on from the residenttol development located to the south of the project north
across the site towards Calle Barcelona. Runoff from a forth on-site desilting basin is collected
and conveyed via a 36" CMP private storm drain lateral to a storm drain cleanout junction
structure where it confluences with run-on in the 42" RCP public storm drain and conveyed
north towards Calle Barcelona.
Presently, the site sheet flows to four temporary desilttng basis located along the northern
boundary of the site that abuts Calle Barcelona. The site generally drains to the north towards
the existing desilting basins where it enters the public storm drain system through the existing
storm drain laterals, and flows north to the public storm drain system located in Calle
Barcelona.
2.1.4. Proposed Drainage Conditions
The proposed site will consist of two pods similar to existing conditions. Site drainage will
consist primarily of sheet flow from south to north similar to existing conditions. Runoff will be
collected by a series of catch basins and flow-through planters. The majority of runoff will be
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conveyed to flow-through planters for storm water quality treatment and hydromodification
management purposes.
The project's layout and grading design divided the site into four (4) major drainage basins.
These basins will have independent, private drainage systems which will tie into the existing
public storm drain system located on-site. The systems will utilize the public storm drain
laterals which were installed under drawings 325-1 and 325-1 A.
A small fraction ofthe project's drainage areas cannot be conveyed to flow-through planters due to
elevation constraints. These areas include the maintenance access rood to the public storm drain
system and the entrance to the site. Pervious concrete was selected for the public storm drain
maintenance access rood due to the relatively steep grades. It provided a pervious, self-treating,
stabilized access road. Permeable pavers were selected at the entrance of the site to capture a small
area of onsite runoff that couldn't be conveyed to the flow-through planter. The permeable pavers
section includes permeable pavers, a sand section, subdrain for high flows and permeable liner for
infiltration.
The majority of the project's drainage areas surface drain to flow-through planters which provide
storm water quality treatment and hydromodification management as well as convey runoff from the
100 year rainfall event to the numerous catch basins located on the site. A small fraction of the
project's drainage areas were unable to have flow-through planters integrated into the drainage
area due to elevation constraints. In these select areas, permeable paver systems are located in
vehicular areas and are design with a sand filter at the bottom of the permeable paver section, an
underdrain with orifice plate and curb inlet or catch basin for water quality treatment,
hydromodification flow control and 100 year runoff capture, respectively. Pen/ious concrete was
also used forthe public storm drain maintenance access road.
A detailed description of the drainage patterns and flows on site are discussed in the report
titled Drainage Study for San Dieguito Union High School La Costa Valley School Site
Development 'prepared by Fuscoe Engineering, dated February, 2014. Additional information
on the downstream storm drain system is contained in the Storm Drain Repori Arroyo La Cosfa
Unit 2 Cadsbad h^i Project Design Consultants, doted July, 1992 on file with the City of
Corlsbod under CT 88-03-2.
2.1.5. Nature of Fill Material & Existing Data Describing the Soil
A Geotechnical investigation was prepared for the project site by Geocon, doted November
4, 2013 and revised January 15, 2014 (Project No. Gl 644-42-01 A). Selected excerpts from
the report ore as follows:
Site Locafion and As-Graded Description:
"The proposed school site is located within the Arroyo La Costa planned community in the
southwest pari of Cadsbad, California (Latitude 33.0739 and Longitude -11 7.2549). The site
is bounded by
Calle Barcelona on the norih, an existing residential subdivision on the south, an existing
church on the west, and Arroyo La Costa Unit 3 residential development on the east. The
approximate location is shown on fhe Topographic Vicinity Map, Figure 1. Previously, fhe site
was graded during the mass grading operations for the Arroyo La Cosfa projecf Mass
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grading operations that took place in the late 1990's consisted of removal of native unsuitable
soils, installation of subdrains within canyons, and placement of compacted fill to existing
grades, in addition, within the norihwestern poriion of fhe sife, settlement plates were installed
to allow for monitoring settlement of compressible alluvium that could not be removed by
conventional mass grading operations due to the presence of groundwater.
Mass grading of the site was pedormed in conjuncfion wifh testing and observation services
provided by Geocon Incorporated. Results of the testing and obsen/ation services were
presented in Geocon
Incorporated's repori titled Final Repori of Tesfing and Obsen/ation Services during Site
Grading,
Arroyo La Costa Junior High School Site, Unit 2, Lot 483, Carlsbad, California, dated March
24
1999 (Project No. 05871-12-01, Reference No. 10). "
"The site consists of two relatively flat pads, the eastern upper pad and fhe lower pad in the
western poriion of fhe site. Slopes ascend from fhe southern lot boundary approximately 60
feet to residential structures. Slopes descend about 30 feet from the upper fo lower pad and
about 30 to 50 feet from the northern lot boundary to Calle Barcelona. A west facing siope
with heights varying from 27 to 50 feet is located on the upper pad along the central east
end."
"Proposed project for the upper pad includes a multipurpose buiiding, a future administration
buiiding, a parking iot, and a baseball fieid. The lower pad wili receive two baseball fields, a
soccer field, a parking lot, and a restroom building. Access wiil be through driveway from
Caile Barcelona at the northeast corner. Several de silting basins are proposed as part of
project deveiopment."
Soil and Geologic Condifions:
"Based on the fieid investigation, the soil undedying fhe site consists of undocumented fill soil,
compacted fill soil, alluvium, Torrey Sandstone and Delmar Formation. "
"Undocumented fill soil was encountered af fhe north east section of the upper pad and on
the south slope of the desilting basin. Additionai undocumented fili was encountered at the
south east corner at the toe of the middle slope and along the south central section. It is
apparent that the undocumented fill was placed to reduce erosion on the existing desilting
basins and on the existing fill siope af the northeast corner ofthe upper pad"
"Compacted fill soil placed during the mass grading operafions for fhe Arroyo La Costa
project were encountered in aii the borings. The compacted fill soils consist of moderately
dense, silty, clayey sand and stiff sandy clay to depths of 18 feet Original grading plans
indicate up to 65 feet of fill was placed in the northwest corner of the lower pad. Compacted
fill soils 20 to 40 feet thick were placed as part ofthe original grading in the upper pad. "
"Torrey Sandstone is partially exposed and partially buried by fill in the southeastern and
southwestern poriions of fhe upper sheet-graded pad. The Torrey Sandstone consists of silty,
fine sandstone with varying amounts of clay. The Torrey Sandstone, in general, has a low
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expansion potential in either a natural or recompacted condition. The contact between the
Torrey Sandstone and the undedying Delmar Formafion is conformable, in some local
geologic maps, fhis unit is being labeled as the Sandy Unit ofthe Santiago Formafion (Tsa). "
"Delmar Formation underlies the Torrey Sandstone and in general is encountered beiow
Elevation 135 feet below Mean Sea Level (MSL). in general, the Delmar Formafion consists of
hard claystone and sandy claystone. The Delmar Formation possesses adequate shear
strength and consolidation characteristics to support new sfructures or new fill soil. "
Ground Water:
"We did not encounter groundwater. However, seepage was observed on the lower
approximately 12 feet of the northwest-facing cut slope located in the southeastern portion of
the sife. Groundwater seepage was also observed on the lower section (bottom approximately
10 feef) of fhe north-facing fill slope, located in the southeastern portion of the lower sheet
graded pad. Considering the amount of seepage, mitigation by obstructing drained stability fill
embankments is recommended. The locations of the proposed drained stability fills are shown
of fhe Site Plan7Geologic Map (Figure 2). Construction details for the stability fills are
presented in Figure 22. It is not uncommon for groundwater or seepage conditions fo develop
in fills and formational units where none previously existed, especially in irrigated areas or
after seasonal rainfall. Water that is nof properly drained will typically perch on the fop of
impervious soil layers. Proper sudace drainage of irrigation water and precipitation wiil be
critical to future pedormance of the project. "
Bio-Retention Basin and Bio-Swale Recommendafions:
"The site is undedain by compacted fill and fhe Torrey Sandstone that are generally composed
of silty and clayey sand. Based on our experience with the on-site soils and infilfration testing,
the compacted fill and formational soil have very low permeability and generally very low
infilfration characteristics, if is our opinion the compacted fill and formational soil are
unsuitable for infiltration of sform wafer runoff. Infiltration tests pedormed for this study are
provided in Table 8.15 and indicate field saturated hydraulic conductivity of 0.006 fo 0.318
inches/hour."
"Any bio-retention basins, Bioswales, and bio-remediation areas should be designed by the
project civil engineer and reviewed by Geocon Incorporated. Typically bioswales consist of a
sudace layer of vegetation undedain by clean sand. A subdrain should be provided beneath
fhe sand layer Water should not be allowed to infiltrate adjacent to the planned
improvements. We recommend that retention basins, be propedy lined to prevent wafer
infiltration info the undedying soii. "
Note: In the above conclusion, "Low Impact Development measures" ore those that use
infiltration. The soil does not percolate at a high enough rate to allow infiltration, thus
infiltration-based Integrated Management Practices (IMPs) ore not feasible for the project site.
All flow-through-planters will need to be lined with on impermeable liner.
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2.1.6. Environmentally Sensitive Site Conditions
Under existing conditions, the project site is in rough grade condition. The project site is not
located in on area of known for erosive soil condittons, such as a hillside development.
According to the City of Carlsbad, the adjacent lot to the west is described as an
environmentally sensitive area. Because of this, the project has been designated a "Tier 3
project" and will follow appropriate local and state requirements to prevent negatively
affecting this area.
2.1.7. Site Plan
Approximately 28 acres (grading limit) will be developed and/or disturbed on the La Costa
Site Development project site. Under the existing condition, the La Costa Site Development
project site is primarily undeveloped. Under the proposed conditton, the project area will
include increases in hardscape (roods, pods, infrastructure improvements) and softscope
(landscaping) thereby altering the runoff condittons. A summary of the proposed imper^/ious
area composition is illustrated in the table below.
Table 2.1 Sife Impervious Area Composition
Parameter Esfimate
Construction Site Area 28 acres
Percentage Impervious Area Before Construction -0%
Runoff Coefficient Before Construction .1
Percentage Impervious Area After Construction 16.5%
Runoff Coefficient After Construction .24
Note: Calculations are provided in Appendix G.
2.2. STORM WATER RUN-ON FROM OFF-SITE AREAS
Storm water flows from adjacent off-site areas (referred to as "run-on") will be collected by
existing and proposed brow ditches and directed to storm drain facilities. Details ore provided
in the Hydrology Study by Fuscoe Engineering, Inc. Copies of the Hydrology Maps for existing
and proposed conditions ore included in Appendix B.
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 rotes of erosion and sedimentation con vary from
site to site depending on factors such as duration of constructton octtvities, climate,
topography, soil condition, and proximity to receiving water bodies. The General Permit
identtfies 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.
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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 uttlized by the US EPA for
estimating rates of soil loss at constructton 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 Son Diego RWQCB's Basin Plan.
The resultant risk levels for Sediment Risk and Receiving Water Risk is then assessed in o 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
Sediment Risk
Receiving Water 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 ore
applied to the site. The main difference between Risk Levels 1, 2, and 3 ore the numeric
effluent standards. In Risk Level 1, there ore no numeric effluent standard requirements, as it
is considered a low Sediment Risk and low Receiving Water Risk (see matrix above). Instead,
norrottve effluent limits are prescribed. In Risk Level 2, Numeric Actton Levels (NALs) of pH
between 6.5-8.5 and turbidity below 250 NTU ore 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) ore applied in additton to the norrottve
and numeric effluent standards prescribed for a Risk Level 2 site. Risk Level 3 dischargers ore
subject to a pH NEL of 6.0-9.0 and a turbidity NEL of 500 NTU. Once on NEL is exceeded,
the construction site is considered in violation ofthe 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 rotes of soil loss at construction sites during roin
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 = rote of sheet and rill erosion, in tons/acre
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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-Foctor: 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 (130).^ The numerical value of R
is the overage annual sum of EI30 for storm events during a rainfall record of at least
22 years. Isoerodent" mops were developed based on R-values calculated for more
than 1,000 locations in the Western U.S. The mops may be utilized to determine the
Standard Risk Assessment, and hove 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 conservafion
planning with the Revised Universal Soil Loss Equation (RUSLE), or the EPA's R-value
Risk Calculator (available at
http://cfpub.epa.aov/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 rote
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 overage 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 mop included in Appendix 1 of
the General Permit (Appendix A of this SWPPP). This alternative method is termed the GIS
Map Method. The mop is a geographical representation of combined K and LS factors for the
State of California.
' United States Department of Agriculture (USDA). Predicting Rainfall Erosion Losses A Guide to Conservation
Planning. Agriculture Handbook 537. December 1978.
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• 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 forthe proposed project during construction will reduce the
P-factorto 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 Lo Costa Site Development project, the GIS Map
Method was utilized. Table 2.4 summarizes the results of the Sediment Risk Analysis
performed forthe project. Supporting details and calculations are provided in Appendix C.
Table 2.4 Sediment Risk Factor Summary
Parameter Method Used Result
R Factor EPA-Fact Sheet 3.1 41.68
K Factor SMARTS Generated 0.2
LS Factor SMARTS Generated 2.26
Watershed E rosion Estimate (in tons/acre) 18.84
Therefore, the Project's Sediment Risk is Medium.
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.
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• The disturbed area discharges to a water body that has a US EPA-opproved 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 discharge to a water body that meets one of the above categories.
Therefore, the Project's Receiving Water Risk is Low.
2.3.3. Risk Determination
The resultant Risk Level for the La Costa Valley Site Development project is Risk Level 2.
Risk Level 2 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 December 13, 2014. It is
estimated that the project will be completed January 27, 2016. The construction activity
schedule for the La Costa Valley Site Development 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
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 hove been treated, stored, disposed, spilled
or leaked out of this construction site. Son Dieguito Union School District 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:
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Table 2.5 Potential Pollutant Sources from Consfrucfion Areas and Acfivifies
Activity7Area of Concem Potential Problem7Pollufants Usually
Observable?
Cleared and graded areas
Concrete disposal
Construction site entrance
Demolition of existing
structures
Drilling
Equipment storage area
Existing drain inlets
Fueling area
Landscaping
Masonry, Paving Operations
Material delivery and storage
area
Painting, Plastering, Stucco
Run-on from existing facilities
Vertical Construction
Waste collection area
Other:
Sediment mobilization from soil stockpiles and Yes
erosion can occur without proper sediment and
erosion controls.
Concrete waste, sediment, metals, can raise pH Yes
levels outside of permitted range
Tracking of sediment off-site onto existing roads if Yes
entrance is not stabilized/protected.
Trash & debris Yes
Sediment, Non-storm water discharges Yes
Leaking hydraulic oil and antifreeze from Yes
construction equipment.
The allowance of non-storm water discharges to Yes
enter the storm drain without proper inlet
protection.
Gasoline and diesel fuel leaks and spills from Yes
fueling activities.
Sediment and erosion, trash, debris, organics, soil Varies
amendments, fertilizers, soil amendments
Sediment, oil & grease, mortar, concrete wastes, Yes
can raise pff levels outside of permitted range
Construction materials such as paints, plaster, and Varies
solvents left exposed and uncovered, or accidental
spills.
Trace metals, oil, grease, fuels, toxics, thinners, Varies
solvents, non-storm water discharges
Developed areas contribute to the deposition of Varies
bacteria, pesticides, fertilizers, oils, litter, and
sediment on impervious surfaces.
Exposure of trash/debris, sediment, metals Yes
Exposure of trash/debris to roof drainage or direct Yes
contact with storm water if left uncovered or
exposed.
BMPs were prescribed for the mitigation and abatement of storm water runoff contamination
at these potential source areas. They ore described in Section 3.
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2.5.3. Materials Inventory
Poor management of construction materials and equipment, particularly in the storage and
handling of row materials, con create potential pollutant sources that con lead to storm water
runoff contamination. Table 2.6 provides on 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
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
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Material Type Storm Water Pollutant Constituents Visually
Observable?
Soil Amendments Gypsum, aluminum sulfate, sulfur No
Solid waste, litter Floatables, trash, debris Yes
Wastewater from Equipment
Washing
Wood Preservatives
Vegetation
Soil, oil & grease, solids, turbidity, sediments,
sulfites
Stoddard solvent, petroleum, distillates, arsenic,
copper, chromium
Organics
Yes
No
Yes
Other:
2.5.4. Pre-Construction Control Measures
This site is currentiy undeveloped and does not contain any existing control measures. All
clearing and construction related activities that hove the potential to cause discharges will be
minimized with BMPs implemented underthis SWPPP.
2.6. IDENTIFICATION OF NON-STORM WATER DISCHARGES
All efforts will be mode 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 ore listed in Sections 2.4 and 2.5.
Authorized non-storm water discharges may include those from dechlorinated potable water
sources such as: fire hydrant fiushing, irrigation of vegetotive erosion control measures, pipe
fiushing and testing, water to control dust, uncontaminated ground water from dewatering,
and other discharges not subject to o separate general NPDES permit adopted by a Regional
Woter Board. The discharge of non-storm water is authorized underthe following conditions:
• The discharge does not cause or contribute to a violation of any water quality
standard;
• The discharge does not violote 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
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• The discharger reports the sampling information in the Annual Report.
If any of the above conditions ore 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 ore outiined in Section 7.6.
Dewatering activities involving the removal of storm water from excavated areas ore not
anticipated at the site during construction.. Refer to BMP Fact Sheet NS-2 in Appendix I for
further information on requirements for dewatering activities.
Dewatering activities involving shallow groundwater ore not anticipated at the site during
construction.
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3. BEST MANAGEMENT PRACTICES (BMPS)
This SWPPP provides specificafions and guidelines for reducing the sediment loading into
receiving water bodies that could occur during the construcfion and operation of La Cosfo
Valley Site Development. 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 ore removed prior to discharge to receiving water bodies.
The following information identifies the specific construction BMPs that ore implemented at Lo
Costa Valley Site Development.
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 os 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 ore included in Appendix B. The
mops show existing topography, identify grading areas and proposed slopes, and the location
of erosion control measures, such as perimeter controls, grovel bog berms and storm drain
inlet protection measures (where applicable). In addition, Demolition Plans and/or Grading
Sheets hove been included in Appendix B for reference or use as future SWPPP Mop. These
maps ore to be updated by the Contractor continually throughout construction of the project,
as each phase of construction commences to refiect current BMP conditions. Updates may be
mode by hand in the field, and shall be initialed and doted. Copies of updated mops 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 roin, must be protected from erosion. Soil disturbed areas may include relatively
flat areas os well as slopes. Inactive areas include areas of construction activity that hove
been disturbed but ore not currently being worked on and ore 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 ossure 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 ore outlined in Section 4. Individual
BMP fact sheets containing additional information on BMP implementation and maintenance
ore included in Appendix I.
Table 3.1 Erosion Controi BMPs
CASQA BMP
No. & Name Used? Description
EC-1 Yes Perimeter sediment controls, including controls along the physical
Scheduling 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 ff for additional information on BMP scheduling.
EC-2
Preservation of
Existing Vegetation
EC-3
Hydraulic Mulch
No Construction perimeter fencing will be provided around the on-site
areas of vegetation to be protected as noted by the professionai
biologist. These areas shall be clearly marked on the plans at the
time of fencing.
Vegetation shall be protected with fencing in all areas activity is not
proposed..
No Not a proposed temporary BMP for the La Costa Valley Site
Development project, EC-4 proposed in lieu of EC-3.
EC-4
Hydroseeding
Yes All final slopes and slopes that will remain undisturbed for periods
greater than 1 4 days shall be hydroseeded (2 Ib of inoculant per
100 Ib 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.
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CASQA BMP
No. & Name Used? Descripfion
EC-5 Yes Hydraulic soil stabilizers, such as acrylic copolymer, shall be applied
Soil Binders to all temporary construction slopes or pads at finish grade not
ready for landscaping or permanent stabilization (amount depends
on binder type). The protection shall be maintained until the slopes
or pads are at finish grade and stabilized with permanent
landscaping vegetation or other cover.
Soil binders may be utilized in lieu of EC-4 described above.
EC-6
Straw Mulch
No Not a proposed temporary BMP for the La Costa Valley Site
Development project, EC-4 proposed in lieu of EC-6.
EC-7 Yes Geotextiles and mats, or rolled erosion control products may be
Geotextiles and used to cover the soil surface to reduce erosion from rainfall impact.
Mats 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 No Not a proposed temporary BMP for this project.
Wood Mulch
EC-9 No Not a proposed temporary BMP for this project.
Earth Dikes &
Drainage Swales
EC-10
Velocity Dissipation
Devices
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 locations
outlined on the SWPPP wall map.
EC-11
Slope Drains
No Not a proposed temporary BMP for this project.
EC-12
Streambank
Stabilization
No Not applicable.
EC-13
(reserved)
Reserved for future use.
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CASQA BMP
No. & Name Used? Description
EC-14
Compost Blankets
No Not a proposed temporary BMP for this project.
EC-15
Soil Preparation7
Roughening
No Not a proposed temporary BMP for this project.
EC-16
Non- Vegetative
Stabilization
No Not a proposed temporary BMP for this project.
3.3.2. Sediment Control BMPs
Sediment controls ore structural measures that ore 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 hove been
detached and transported by the force of water. This project will incorporate minimum
temporary sediment control requirements, temporory sediment control meosures 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
OS described in this SWPPP. This includes implementation requirements for active areas and
non-active areas before the onset of anticipated roin events.
Locations of sediment control BMPs ore identified on the SWPPP Exhibits included in Appendix
B. Maintenance of sediment control BMPs ore outlined in Section 4. Individual BMP fact
sheets contoining additional information on BMP implementation and maintenance ore
included in Appendix 1.
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 at toe of graded slopes per SWPPP Wall
Map..
SE-2
Sediment Basin
No Not a proposed temporary BMP for this project.
SE-3
Sediment Trap
No Not a proposed temporary BMP for this project.
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• • CASQA BMP
No. & Name Used? Descripfion
SE-4
Check Dams
Yes Check dams shall be used in small open channels, in steep
channels with velocities greaterthan 5 ft/sec, and in small
intermittent channels, temporary ditches, and temporary swales.
Check dams shall be spaced according to slope and velocity
reduction achieved when the top ofthe upstream dam is at the
same elevation as the top of the downstream dam. The center
section of the dam should be lower than the edge sections, acting
as a spillway. Refer to Fact Sheet SE-4 in Appendix 1 for details.
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 1 0 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 Calle Barcelona
free of sediments tracked from the project site.
SE-8
Sandbag Bamer
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 Bamer
No Not a proposed temporary BMP for this project.
•
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CASQA BMP
No. & Name Used? Description
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 ofthe 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 for this project.
SE-12
Temporary Silt Dike
No Not a proposed temporary BMP forthis project.
SE-13
Compost Socks &
Berms
No Not a proposed temporary BMP for this project.
SE-14
Biofilter Bags
No Not a proposed temporary BMP for this project.
3.3.3. Tracking Control BMPs
Trocking controls shall be considered and implemented year round and throughout the
duration of the project, ot 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 ore 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 ore included in Appendix I.
Table 3.3 Tracking Control BMPs
CASQA BMP
No. & Name Used? Description
TR-1 Yes Construction entrances shall be stabilized at all points of site ingress
Stabilized and egress. The pad of aggregate will have minimum dimensions
Conshvction of 50 feet in length and 30 feet in width. Rumble racks (i.e. shaker
Enfrance7Exit plates) will be included to provide additional sediment removal and
reduce potential for off-site tracking of sediment.
There is proposed ingress/egress route at this time at the Calle
Barcelona Entrance to the north ofthe site.
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CASQA BMP
No. & Name Used? Description
TR-2
Stabilized
Construcfion
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
Entrance70utlet
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 ore 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 ore identified on the SWPPP Exhibit/Erosion Control
Plans included in Appendix B. Maintenance of wind erosion control BMPs ore outlined in
Section 4. Individual BMP fact sheets containing additional information on BMP
implementation and maintenance ore included in Appendix I.
Table 3.4 Wind Erosion Control BMPs
CASQA BMP
No. & Name Used? Description
WE-1
Wind Erosion
Contiol
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 wil
perimeter of the project site.
be implemented along the
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 mode to the project to reduce or eliminate non-storm water
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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 ore 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 Wafer Management BMPs
CASQA BMP
No. & Name Used? Description
NS-1
Wafer
Conservation
Practices
NS-2
Dewatering
Operafions
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 promptiy, and
vehicle / equipment washing is discouraged.
No Not a proposed temporary BMP for this project.
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 No Not applicable.
Temporary Sfream
Crossing
NS-5 No Not applicable.
Clear Water
Diversion
NS-6
Illicit Connection7
Discharge
Yes The contractor shall regulariy inspect the project site for illicit
connections and discharges off-site (quarteriy 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.
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CASQA BMP
No. & Name Used? Description
NS-7
Potable Wafer7
Imgation
Yes Managing the discharge of potential pollutants generated during
discharges from irrigation water lines, landscape irrigation, lawn or
garden watering, planned and unplanned discharges from potable
water sources, water line flushing, and hydrant fiushing. Discharges
from water line fiushing should be reused for landscaping purposes
where feasible. Shut off the water source to broken lines, sprinklers,
or valves as soon as possible to prevent excess water flow. Adjust
watering times and schedules to ensure that the appropriate amount
of water is being used and to minimize runoff.
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
NS-9
Vehicle and
Equipmenf Fueling
NS-fO
Vehicle and
Equipmenf
Maintenance
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-1 0,
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.
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.
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.
NS-ll
Pile Driving
Operations
No Not a proposed temporary BMP for this project.
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CASQA BMP
No. Si Name Used? Description
NS-12
Concrefe 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
Concrefe 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 applicable.
NS-15
Demolition
Adjacent to Water
No Not applicable.
NS-16
Temporary Batch
Plants
No Not a proposed temporary BMP for this project.
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 ore going to be generated
during construction; however, the methods in which the wastes ore 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., point
removal) to general site litter and debris (i.e., empty marker point cons).
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 fiow barriers around these areas to prevent storm
water fiows 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.
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CASQA BMP
No. & Name Used? Description
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 Yes Sediment stockpiles will be located away from drainage courses
Stockpile (minimum of 50 ft separation recommended) and protected from
Management run-on using temporary sediment barriers such as compost berms
(SE-1 3), temporary silt dikes (SE-1 2), 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.
WM-4 Yes Spills will be cleaned up immediately. Hazardous materials will be
Spill Prevention stored in covered containers. Spill and cleanup kits should be
and Contiol 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. Ifthe 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.
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CASQA BMP
No. & Name Used? Descripfion
WM-6
Hazardous Waste
Management
WM-7
Contaminated Soil
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 1 72, 1 73, 1 78, and 1 79.
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 1 00% 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.
No Not a proposed temporary BMP for this project.
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
ofthe 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 Yes All sanitary wastes will be collected and managed through the use
Sanitary7Septic of portable toilet facilities. Portable toilets will be transported to
Waste and from the construction site by a licensed contractor. Portable
Management 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-W
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
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Based on the operational octivities 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 ore 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 con come in two forms, non-structural or structural control
measures.
Non-structural controls ore practices that ore specifically intended to reduce or prevent the
generofion of storm water pollutants. They ore 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
offer the non-structural controls hove been implemented. These types of controls are physical
features that control and prevent storm water pollution. They con 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 Lo Costa Volley Site Development 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 1 municipal separate storm sewer system
(MS4) permit approved forthe region (Son Diego RWQCB Order No. R9-2009-0002).
Table 3.7 Non-Structural Source Confrol BMPs
BMP Name
Common Area
Landscape
Management
Titie 22 CCR
Compliance
Description
Landscape maintenance for the project site shall be conducted consistent
with the Son Diego County Water Conservation Guidelines. The use of
fertilizers and pesticides will also be consistent with San Diego County
Management Guidelines for Fertilizer and Pesticides.
Training on landscape management is to be given at a minimum of once
prior to the start of the rainy season, no later than October 1 each year.
The Lo Cosfo Volley Sports Fields shall comply with Title 22 of the California
Code of Regulations and relevant sections of the California Health and
Safety Code regarding hazardous waste management, which will be
enforced by County Environmental Health on behalf of the State.
The SDUHSD shall verify Title 22 California Code of Regulations
compliance on on onnuol basis.
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BMP Name Description
The La Costa Volley Sports Fields shall maintain procedures for spill
response and cleanup activities. Emergency spill kits will be kept onsite at
oil times. Activities will be coordinated between the respective
departments and the Police and Fire departments in the event of a spill.
Additionally, water quality inspections of the facility operations will be
performed to comply with the urban runoff NPDES permit regulations.
Spill Contingency
Plan
Verification of Spill Contingency Plans based
Industrial/Commercial NPDES Inspection (frequency varies)
on City
The facility shall comply with the Corfsbod Fire Dept hazardous materials
disclosure requirements. Haz-Mat
Disclosure
Compliance As required by the City of CoHsbod Fire Dept., disclose all hazardous
materials and wastes to be site on site and update of least annually.
Owners of the Lo Costa Valley Site Development project will be required to
provide trash management and litter control services during regulariy
scheduled maintenance, which should consist of litter patrol, emptying of
Common Area trash receptacles in common areas, and noting trash disposal violations by
Litter Control tenants and reporting the violations to for investigation.
Litter patrol, violations investigation, reporting and other litter control
activities shall be performed in conjunction with maintenance activities.
The SDUHSD shall train operational staff periodically by distributing
environmentol education materials.
Employee Training
Training on storm water pollution prevention practices will be provided to
all maintenance and landscape staff, priorto the rainy season, each year.
Catch Basin Catch basin inlets shall be inspected and, if necessary, cleaned prior to
Inspecfion the rainy season, each year.
Private streets and parking areos within the project shall be swept of a
minimum frequency of once per year prior to the Oct 1 start of the rainy
season.
Street Sweeping
Private Stieets and
Parking Lots
Table 3.8 Sfructural Source Control BMPs
BMP Name
Proper Trash
Storage Design
Description
All trash and waste shall be stored in containers that hove lids or tarps to
minimize direct precipitation into the containers. The storage areas will be
paved, and either be sloped or include a barrier to keep drainage out of
the storm drain.
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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
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BMP Name Description
Efficient Imgation
Systems and
Landscape Design
The irrigation system shall employ a control system and design to conserve
water. The landscape design shall incorporate notive plants with low
irrigation needs. The design shall promote the natural filtration of
irrigation and limit runoff into the storm drain system as much as possible.
In conjunction with maintenance activities, verify that landscape design
continues to function properfy by adjusting properfy to eliminate overspray
to paved areas, and to verify that irrigation timing and cycle lengths ore
adjusted in accordance with water demands, given time of year, weather,
and day or night time temperatures.
Table 3.9 Structural Treatment Confrol BMPs
BMP Name Description
Flow Through Proposed fiow through planter to be located in the southeast portion of the site.
Planter To be maintained per County of San Diego stormwater standards.
Pervious Pavers Proposed pervious pavers and concrete areas to be kept clear of litter and
and Concrete maintained per manufacturers guidelines.
Refer to the project-specific SWMP for further details on post-construction BMP operation and
maintenance.
Short-Term Fundinq
During construction. Son Dieguito Unified High School District will be responsible for
inspecting and maintaining all BMPs within the common areas of development and streets.
Long-Term Fundina
Son Dieguito Unified High School District shall be responsible for long-term funding for BMP
maintenance. Son Dieguito Unified High School District 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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
LA COSTA VALLEY SITE DEVELOPMENT JULY 2014
4. BMP INSPECTION, MAINTENANCE, AND
RAIN EVENT ACTION PLANS (REAPS)
4.1. BMP INSPECTION AND AAAINTENANCE
The General Permit requires routine weekly inspections of all BMPs and doily inspections
during roin events to ensure that oil BMPs ore implemented and maintained according to the
SWPPP. In addition, BMP inspections and maintenance shall be performed 72 hours prior to
o 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 orderfy manner?
• Are erosion and sediment control BMPs installed properiy? Are they effective in
controlling erosion and sediment from the site?
• Are materials properfy stored, covered, elevated on pallets or hove 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 properiy maintained?
• Hove drainage patterns changed as a result of grading operations? Have the BMPs
been adjusted accordingly?
• Are exposed areas stabilized in o timely manner after completion of construction
activities? Are inactive areas properfy stabilized?
• Are employees, contractors, and subcontractors properfy 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
bogs/sondbogs;
• 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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
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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 thot 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 ore prepared by
the QSP based on the predicted roin event and construction phase, which include:
• Grading and Land Development;
• Streets and Utilities;
• Vertical Construction; and
• Final Landscaping and Site Stabilization.
REAPs ore also required for project sites where construction activities ore indefinitely halted or
postponed ("inactive sites").
REAPs ore 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 ore intended to reduce the amount of sediment and other pollutants generated
for the active site. REAPs ore to be completed by the QSP when there is a forecast of a likely
precipitation event in the project area according to the Notional Oceanic and Atmospheric
Administration (NO/\A) forecast website (http://www.crh.noaa.gov/lot/severe/wxterms.php).
A "likely precipitation event" is any weather pattern that is forecast to hove a 50% or greater
chance of precipitation in the project area. Forecasts ore normally issued for 12-hour time
periods. It is recommended that the NOAA forecast be printed and saved where REAPs ore
required for documentation of the forecast. Copies shall be saved in Appendix Q.
The project site locotion to be used for obtaining forecast from the NOAA website is:
• Carfsbad, CA 92009
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 ore to be prepared and implemented in addition to the pre-storm event visual
inspection requirements, described further in Section 7.5.
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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 ore to be installed and maintained properfy. The Generol Permit requires that
oil 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 Vll, 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 con include both formal and informal training, shall be on an on-going basis (e.g.,
quorterfy, 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 ore written, amended and certified by o Qualified
SWPPP Developer (QSD) that has one of the following registrations or certifications, and
appropriate experience, as required for:
• A California registered professionoi 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 (CPESC™) registered through
Enviro Cert International, Inc.;
• A Certified Professional in Storm Water Quality (CPSWQ™) registered through Enviro
Cert International, Inc.; or
• A professional in erosion ond sediment control registered through the Notional
Institute for Certification in Engineering Technologies (NICET);
In addifion, effective September 1, 2011, the QSD shall hove attended a SWRCB-sponsored
or approved QSD training course. The name and telephone number of the currentiy
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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
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5.2.2. Qualified SWPPP Practitioner (QSP)
The discharger shall ensure that oil BMPs required by this General Permit ore implemented by
0 Qualified SWPPP Practitioner (QSP). A QSP is a person responsible for non-storm water and
storm water visual obsen/ations, sompling and analysis. A QSP shall either be a QSD or hove
one ofthe following certifications:
• A certified erosion, sediment and storm water inspector registered through Enviro Cert
Internafional, 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 hove attended a SWRCB-sponsored or
approved QSP training course effective September 1, 2011. The name and telephone
number of the currentiy 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 port 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 ore 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 Subcontroctors.
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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STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
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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 Titie 8, Section 3203), the
Hazardous Waste Operafions and Emergency Response (H/\ZWOPER) Standard (29 CFR
1 910.1 20), the Spill Prevenfion Confrol and Countermeasure (SPCC) Plan (40 CFR 11 2), and
the Hazardous Materials Management Plan (Business Plan) (California Health and Safety
Code, Section 6.95).
Businesses, particularfy 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 olternatives (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 opplicotors and conduct on-site inspections.
Proper education of off-site contractors is offen overlooked. The conscientious efforts of well
trained employee/subcontroctors can be lost by unknowing off-site contractors, so moke sure
they are well informed about what they ore expected to do on-site.
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6. RESPONSIBLE PARTIES AND OPERATORS
6.1. RESPONSIBLE PARTIES
Table 6.1 Lisf of Responsible Parties
San Dieguito Union High School District
710 Encinitas Blvd
Encinitas, CA 92024
760.753.6491
Russ.thornton@sduhsd.net
Project Owner 7
Legally Responsible
Person (LRP)
Russ Thornton
Executive Director of Operations
Qualified SWPPP
Developer (QSD)
Fuscoe Engineering, Inc.
6390 Greenwich Drive, Suite 1 70
San Diego, CA 92122
858.554.1500
Emma Smith, CPESC, QSD, Environmental Scientist
esmith@fuscoe.com
Qualified SWPPP
Companv Name:
Qualified SWPPP
Address:
Qualified SWPPP
City, State, Zip:
Qualified SWPPP Telephone:
Practitioner (QSP)
Name and Titie of QSP:
Email Address:
Phone:
6.2. CONTRACTOR UST
A list of contractors and subcontractors is provided in Appendix L.
Table 6.2 List of Contractors
Company Name:_
Ad d ress:
General Contiactor
City, State, Zip:
Telephone:
Name and Title of Contact:_
Email Address:
Responsible for overall site condifions and SWPPP implementafion,
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 1.1.a) requires a written site specific
Construction Site Monitoring Program (CSMP) be developed by each discharger prior to the
commencement of construction activities, ond 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 mops (Appendix B),
sample forms (Appendix T), guidance on field measurements (Appendix R) and additional
informotion on sampling methods (Appendix S) and od hoc reporting (Appendix U).
Additionally, the CSMP describes applicable NAL/NEL thresholds forthe site.
7.2. APPUCABILITY 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
Risk Level
Quarteriy Non-
Storm Water
Discharge
Visual Inspection
Baseline REAP '^''%^p'^ Poststorm
Sample Collection
Storm „ . .
Wafer ^"^^"""^ yyarer ^^^^
Discharge
1 X X X X
2 X XXX X X
3 X xxx X X X'
/ when numeric effluent level (NEL) exceeded
The Risk Level for the La Cosfo Valley Site Development project is Risk Level 2.
Based on the project's Risk Level, the following monitoring requirements hove been identified:
Visual Monitoring/Inspections
• Visual monitoring for non-storm water discharges (quorterfy)
• 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 offer qualifying rain events)
Sampling & Analysis
• Efffuent sampling for turbidity and pH (minimum 3 samples per day per discharge
point per qualifying roin event)
• Contained rain water (of time of discharge)
• Non-visible pollutants, spills ond/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 oil 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. §§ 1 17.3 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 oil Risk Level 2 and 3 sites. Numeric action levels are essentially numeric
benchmark values for certain parameters that, if exceeded in effluent sompling, trigger the
dischorger to toke octions. The primory 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 token as
required by the General Permit, o violation may result.
Risk Level 2 and 3 dischargers ore 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 ore
subject to technology-based NALs listed above, in addition to technology-based Numeric
Effluent Limits (NELs) for pH ond turbidity. Exceedances of the NELs are a violation of the
Permit. The General Permit requires dischargers with NEL exceedances to implement
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additional monitoring, BMPs, and revise their SWPPPs accordingly. Dischargers ore required
to notify the State and Regional Woter Boards of the violation through the State Water Boards
SMARTS website, and provide on NEL Violation Report sharing additional information
concerning the NEL exceedance.
Risk Level 3 dischargers ore 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 offer 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 on
inch of rainfall), as determined by using the mops listed below. Compliance storm event
verification shall be done by reporting on-site rain gauge readings as well as nearby
governmental roin gouge reodings.
• http://www.wrcc.dri.edu/pcpnfreq/nca5y24.gif
• http://www.wrcc.dri.edu/pcpnfreq/sca5y24.aif
In addition, dischargers choosing to implement on Active Treatment System (ATS) on-site ore
subject to additional requirements and NELs set forth in the permit:
Turbidity NEL of less than 1 0 NTU for doily fiow-weighted overage of all samples
Turbidity NEL of 20 NTU for any single sample
Residual Chemical shall be < 10% of Moximum Allowable Threshold Concentration^
(MATC) for the most sensitive species of the chemical used.
pH NEL of 6.0-9.0
Toxicity - no allowable odverse effects (batch systems only)
The General Permit also contoins "compliance storm event" exceptions from the technology-
based NELs for ATS discharges. The rationale is that technology-based requirements ore
developed assuming o certain design storm. In the cose of ATS the industry-standard design
storm is lO-yeor, 24-hour (as stated in Attachment F of the General Permit), so the
compliance storm event has been established as the lO-yeor 24-hour event as well to provide
consistency.
' 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 Obsen/ed 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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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
training prior to conducting any sampling activities. This includes reviewing the CSMP as well
OS any health and safety plans for the construction site. The sampling personnel should also
obtain the necessary background information required for on overall understanding of the
project, including schedules, BMPs and runoff discharge locations.
The contractor's sampling crewmembers should also be mode aware of potential hazards
associated with sampling. These hazards con 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 ore not limited to:
• At no time during storm conditions or when significant flows ore present should
sampling personnel enter o river or creek.
• Two-person sampling crews should be available for all fieldwork to be conducted
under adverse weather conditions, or whenever there ore 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, hordhots, orange safety vests, roin 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) ore required to conduct visual monitoring (inspections). Visual
monitoring includes inspections of BMPs, inspections before and offer qualifying rain events,
and inspection for non-storm woter discharges. Visual inspections are required for the
duration of the project with the goal of confirming that appropriately selected BMPs hove been
implemented, ore being maintained, and ore 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 os intended.
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ff deficiencies ore identified during BMP inspecfions, repairs or design changes to BMPs must
be inifioted within 72 hours of identification and need to be completed as soon as possible.
All BMP inspections must be documented on on inspection checklist (Appendix P). The
checklist should be made site specific based on the BMPs and outfalls for each construction
project, ond copies of the completed inspection forms, any corrective actions and any
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 y2-inch or more of
precipitation with a 48 hour or greater period between rain events.
The Generol Permit requires that the construction site be inspected within two days prior to a
predicted qualifying roin 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 weother forecasts
from the Notional Oceanographic ond Atmospheric Administration (NO/V\) ore used. Pre-
project inspections should be initiated offer consulting NOAA for a qualifying roin event with
50% or greater probability of precipitation (PoP). These forecasts con be obtained at
http://www.srh.noaa.gov/.
Records must be kept of all qualifying roin event inspections, included in Appendix P. Records
need to be maintained on site and document:
Personnel performing the observations;
Observation dotes (time and dote);
Printed copy of the NOAA forecast;
Weather conditions (including the rain gouge reading for the qualifying roin event
from the nearest government rain gouge);
Locations observed; and
Corrective actions taken in response to obsen/ations.
Copies of the Visual Inspection Log Sheets that may be used for pre- ond 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 ore reody
for the predicted roin. 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 properfy implemented per the SWPPP
and/or REAP;
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• 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.
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 ond record BMPs that need maintenance to operate effectively, that hove
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, o sheen on the surface,
discolorations, turbidity, odors, and source(s) of any observed pollutants within stored
storm water.
• All BMPs to identify whether they hove been properfy implemented per the SWPPP
and/or REAP;
• Affer 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 ore 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 o qualifying rain event; and
• All BMPs to determine if they were adequately designed, implemented, and effective.
Affer assessing BMPs it should be noted on the inspection form whether the BMPs
need mointenonce.
Rain Event Action Plans (REAPs)
Requirements for Roin Event Action Plans (REAPs) ore 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 quarteriy for the presence of
non-storm water discharges. Inspections ore to be performed at the end of each of the
following periods:
• January-March
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• April-June
• July-September
• October-December
Non-storm water discharge inspections ore only required during normal business hours of the
construction site. The purpose of these inspections is to detect unauthorized non-storm water
discharges and observe authorized non-storm water discharges. Quorferfy 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;
• Dotes and approximate time each drainage area and non-storm water discharge was
obsen/ed; and
• Response token to observations.
Results of quorferly inspections and any corrective actions token ore to be documented in the
SWPPP and included as port of the Annual Reports (see Section 7.9.3 and Appendix F).
If the site is Risk Level 2 or 3 and there ore non-storm water discharges, then samples must be
collected and analyzed per Section 7.6. Potential non-storm water discharges ore 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 ore
included in Appendix P. Results ore also to be included as port 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
ore 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 pollutont 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:
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Exposed soil areas with inadequate erosion control measures;
Areas of active grading;
Pooriy stabilized slopes;
Lock of perimeter sediment controls;
Areas of concentrated flow on unprotected soils;
Poorfy maintained erosion and sediment control measures;
Tracking sediment onto roads and paved surfaces;
Unprotected soil stockpiles; and
Failure of on erosion or sediment control measure.
High pH
Conditions or areas of a construction site that may cause high pH in site discharges include:
• Concrete pours and curing;
• Concrete waste management areas;
• Soil amendments (e.g. fiy ash and lime); and
• Mortar and stucco mixing, application, and waste monagement areas.
Non-Visible Pollutants
Non-visible pollutants ore not visually detectable in storm water runoff from a construction
site, but moy cause or contribute to an exceedance of water quality objectives if discharged. It
is important to note that covered construction materials or those that ore in their final
constructed form, do not need to be monitored. Materials that ore stored exposed to
precipitation and may generate runoff need to be considered for non-visible pollutant
monitoring. Such pollutants may include, but ore 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 octivities;
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 post land use activities;
Were spilled during previous land use activities and not cleaned up; or
Were applied to soil as port of past land use activities.
7.6.2. Monitonng Constituents by Risk Level
Risk Level 2
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At 0 minimum. Risk Level 2 projects ore required to collect water quality samples for pH
(during construction phases with a high risk of high pH discharge) and turbidity (oil phases of
construction). A minimum of 3 samples per day for each qualifying roin event shall be
collected of each discharge location and documented in the SWPPP. In addition, grab
samples shall be collected of stored or contained storm water from discharges subsequent to a
qualifying roin event (producing or more at the time of discharge). The samples obtained
shall be representative of the fiow and characteristics of the discharge.
Risk Level 2 projects ore 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 hove been discharged from the site as identified in the site pollutant source
assessment (see Section 2.5 of this SWPPP). Additional monitoring may be required by the
RWQCB.
Results of all sampling shall be recorded in the SWPPP and included as part of the Annual
Report through the SMARTS website. Refer to Appendix U for instructions on submitting Ad
Hoc Monitoring Reports through SMARTS as part ofthe annual reporting process.
Particle size analysis may be needed if a Risk Level 2 project is using a sediment basin or if
needed to justify a site-specific risk level calculafion using RUSLE. The particle size analysis
provides the information needed to determine the K-factor.
7.6.3. Sampling Locations
A Sampling Locations Exhibff has been included in Appendix B, denoting anticipated sampling
locations for the project site, as well as on upstream location to be used for background
sample or where uncontominoted samples ore needed. Sampling locotions for storm water
ore located at the discharge points that ensure adequate representation of the flow and
characteristics of the site's discharges. Additional locations hove also been identified to
characterize for non-storm water runoff discharges and/or spills, where necessary. These
sample locations ore dependent upon the suspected source location, and may vary depending
on the locafion of the spill and/or BMP failure. Sampling locafions shall be verified in the field
and be representafive of current site conditions, disturbed areas and construction phasing. Any
updates to the sampling locations (e.g., as o 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
ore valid. While the handling requirements apply primarily to grab samples collected for
laboratory analysis, field measurements con 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 Sudace Water Ambient Monitoring
Program (SWAMP) 2008 Quality Assurance Program Plan (QAPrP), which is available at
http://www.swrcb.ca. oov/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.
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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 ore expected for
at least trace metals and mercury. These "clean techniques" include the following protocols:
• Samples (for laboratory analysis) ore 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
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
odequote volume to conduct the required measurements or laboratory analyses. The most
important aspect of grab sampling is to moke sure that the sample best represents the entire
runoff stream. Typically, samples ore 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 indirectiy from the collection container.
• For small streams and fiow paths, simply dip the bottle facing upstream unfil full.
• For larger stream that can be safely accessed, collect a sample in the middle of the
flow stream by direcfiy dipping the mouth of the bottle. Once again making sure that
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the opening of the bottle is facing upstream as to ovoid any contamination by the
sampler.
• For lorger streams that cannot be safely waded, pole-samplers may be needed to
safely access the representafive fiow.
• Avoid collecting samples from ponded, sluggish or stagnant water.
• Avoid collecting samples directly downstream from a bridge as the samples con be
affected by the bridge structure or runoff from the rood surface.
All sampling and sample preservation must be in accordance with the current edition of
Standard Methods for fhe Examination of Wafer 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. Moke sure the sample
bottles ore well packaged to prevent breakage and secure cooler lids with packaging tope.
Ship samples that will be laboratory analyzed to the analytical laboratory right away. Many
analytical methods hove short hold-times before which the analysis must be started. Hold
times ore 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 onolyficol procedures specified in 40
Code of Federal Regulafions (CFR) Part 136, unless other analytical procedures hove been
specified in the General Permit or by the RWQCB. With the excepfion 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 hove the capability of doing this analysis.
Field Meters
Dischargers con perform pH analysis on site with a calibrated pH meter, or pH test kit.
Dischargers con perform turbidity analysis using o calibrated turbidity meter (turbidimeter),
either on site or at on accredited analytical laboratory. Many manufacturers offer single
parameter meters or mulfiple 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).
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Most sites will require the use of some sort of field meter to measure turbidity and pH. Some
field meters con be placed directly in the flow of water and gather instantaneous data. Meters
with probes that con be directly placed into the fiow are ideal, however low flow conditions
may not allow for this type of measurement. In this cose, grab samples con 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 on example field meter.
All monitoring instruments and equipment (including o 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. Anglytical 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 ore presented in Table 7.2.
Table 7.2 Analytical Methods and Protocols for General Permit Constituents
Parameter Test
Metiiod7Protocd
Minimum
Detection Limit
Minimum Sample
Volume Container Type
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 con performed on-site with a calibrated pH meter, or pH test kit. Turbidity
analyses con be performed using a calibrated turbidity meter (turbidimeter), either on-site or at
on accredited laboratory. Many manufacturers, such as Hach, Hydrolab, Global Water, Fisher
Scientific, and LoMott, 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 hove 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 o 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-oround-time, and then by their proximity for ease of sample delivery. Although
with overnight mail delivery, proximity is less imporfont, it may still be on imporfont factor to
avoid bottle breakage during shipment. Stote-cerfified analytical laboratories can be found by
using the Environmental Laboratory Accreditation Program's (ELAP) website at:
http://www.cdph.ca.gov/cerflic/labs/PaQes/ELAP.aspx.
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Non-visible pollutants may include o 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 Consfrucfion Acfivifies
Activity Potential Pollutant Source Laboratory Analysis
Waterline flushing
Portable toilets
Concrete & Masonry
Painting
Cleaning
Landscaping
Treated wood
Soil amendments &
dust control
Chlorinated water
Bacteria, disinfectants
Acid wash
Curing compounds
Concrete rinse water
Resins
Thinners
Paint Strippers
Solvents
Adhesives
Sealants
Detergents
Bleaches
Solvents
Pesticides/Herbicides
Fertilizers
Lime and gypsum
Aluminum sulfate, sulfur
Copper, arsenic, selenium
Lime, gypsum
Plant gums
Magnesium chloride
Calcium chloride
Natural brines
Lignosulfonates
Residual chlorine
Total/fecal coliform
pH
pH, alkalinity, volatile organic compounds
(VOCs)
pH
Semi-volatile organic compounds (SVOCs)
Phenols, VOCs
VOCs
Phenols, VOCs
Phenols, SVOCs
SVOCs
Methylene Blue Activated Substances
(MBAS), phosphates
Residual chlorine
VOCs
Check with analytical laboratory
NO3/NH3/P
Acidity/alkalinity
Total dissolved solids (TDS), alkalinity
Metals
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 chort above as a general guideline to determine which analyses
should be performed.
7.6.6. Exemptions
Risk Level 2 and 3 dischargers ore not required to physically collect samples or conduct visual
observafions (inspecfions) under the following conditions:
• During dangerous weather conditions such as flooding and electrical storms
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• Outside of scheduled site business hours
If no required samples or inspections are collected due to these exceptions, dischargers shall
include on explanation in the SWPPP and in the Annual Reporf 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 port 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 on 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 LO Costa Valley Site Development will not be utilizing regional watershed-based
monitoring. All monitoring will be conducted on-site in accordance with the General Permit.
7.8. QUALITY ASSURANCE AND QUALITY CONTROL (QA/QC)
Quality assurance/quality control (QA/QC) procedures shall be implemented as port of the
CSMP to ensure that analytical data con be used with confidence. QA/QC procedures to be
used include use of field logs, clean sampling techniques, sample choins-of-custodies, and
data verification.
7.8.1. Field Logs
The purpose of field logs is to record sampling information and field observafions during
monitoring that may explain any uncharacteristic analytical results. Sampling information to be
included in the field log include the dote and time of water quality sample collection, sampling
personnel, sample container identification numbers, and types of somples 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 ond field measurements ore provided in Appendix T. Completed field logs sholl
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 fleld
contamination and questionable data results. Refer to Section 7.6.4 for further details on
clean sampling techniques.
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7.8.3. Sample Chain-of-Custody
The sample chain-of-custody is on 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 anolyticol results received from the laboratory shall be performed to
ensure that data is complete, accurate and the oppropriote 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
• Checking the chain-of-custody and laboratory reports to moke sure all requested
analysis were performed and oil samples ore accounted for in the reports.
• Checking laboratory reports to moke sure hold times were met and that the reporting
levels meet or ore 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 ore 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 on order of
magnitude or more different than similar locations, or is inconsistent with previous
data from the some 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 flog the data, and usually provides
on explanation of the potential impact to the sample results.
• Check the data set for outlier volues and, accordingly, confirm results ond re-anolyze
samples where appropriate. Sample re-onolysis should only be undertaken when it
appears that some port of the QA/QC resulted in a value out of the expected range.
Inifial data, even ff outside the expected range may not be discounted unless the
analytical laboratory identifies the required Q/VQC criteria were not met. If this
occurs, the project should obtain o written statement from the analytical laboratory
regarding the validity of the sample result.
Field Data Verification
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• 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 ore received.
• Check field logs to moke sure oil required measurements were completed and
appropriately documented. Crews may occasionally miss-record o 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 offer sampling. Observations noted on the
field logs can also help to idenfify potenfial interferences. Notafions should be made
of any errors and actions token to correct the equipment or recording errors.
• When using a field meter \i is imporfont to record the value and moke 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 gloss or plastic
optical sample cells or porficles on the outside of the optical sample cells); or fouled
probes.
7.9. REPORTING REQUIREMENTS AND RECORDS RETENTION
The majority of reporfing will typically occur in the Annual Reporf (see Section 7.9.3 and
Appendix F). However, Risk Level 3 dischargers must electronically submit oil storm event
sampling results (pH and turbidity) to the SWRCB's SMARTS no later than five days offer 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 Reporfs" through the SMARTS Annual
Reporfing interfoce. Instructions for submitting Ad Hoc Monitoring Reporfs ore included in
Appendix U.
Additional reporfing is required if NALs or NELs are exceeded. The requirements for NAL
Exceedance Reports and NEL Violation Reports as well as records retention ore discussed in
the following sections.
7.9.1. Numeric Action Level Exceedance Report
In the event that the storm event daily overage of the samples exceeds an applicable NAL (see
Section 7.3), Risk Level 2 and 3 dischargers must electronically submit all storm event
sompling results to the SWRCB's SMARTS no later than 10 days offer 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
Construcfion Activity.
An NAL Exceedance Report must contain the following information:
• Analytical method(s), method reporting unit(s), and MDL(s) of each analytical
parameter;
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• 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 token
7.9.2. Numeric Effluent Limitation (NEL) Violation Report
In the event that the doily overage of the samples exceed on 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 on 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:
• Analytical method(s), method reporting unit(s), and method detection limits (MDLs) of
each analytical parameter;
• Dote, 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 token.
In the event that on 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 gouge reading and nearby governmental roin gouge readings for
verification. Projects offected by run-on from a natural disaster (such as a forest fire) ore not
subject to NELs. Exemption justifications must be entered in to SMARTS.
Risk Level 3 projects and sites using ATS ore required to subsequentiy 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 ore not required for Risk Level 2 dischargers.
7.9.3. Annual Report
As discussed in Section 1.8, all dischargers ore required to prepare and electronically submit
an Annual Report no later than September 1 each yegr. 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;
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• The analytical method(s), method reporting unit(s), and MDL(s) of each analytical
parameter (analytical results that ore less than the MDL must be reported as "less than
the MDL"or"<MDL");
• A summary of all corrective actions token 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 dote, place, time of facility inspections, sampling, visual observation (inspections),
and/or measurements, including precipitation (rain gouge); and
• The visual observations and sample collection exception records and reports.
In addition, the Annual Report shall include the following training information:
• 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 dote
generated. Records to be retained include:
The dote, place, time of focility 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 dote 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.
Roin gauge readings from site inspections (either from on-site rain gouge or nearest
government roin gouge)
Quality assurance/quality control (QA/QC) records and results.
Non-storm water discharge inspections and visual obsen/ation (inspections) ond storm
water discharge visual observation records.
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• 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 obsen/ation (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 ore 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
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 1 0 NTU daily fiow-weighted average, and All
20 NTU single sample maximum
Chemical Residual 1 0% or less of Maximum Allowable Threshold Flow-through systems
Concentration (MATC)
Toxicity No allowable toxic effects Batch systems
7.10.1. Types of ATS
In general, there ore two types of ATS design, as botch treatment systems using either ponds
or portable trailer-mounted tanks, or as flow-through systems using any number of proprietary
system designs. Botch treatment systems consist of a storm water collection system (i.e.,
temporary diversion or the permanent site drainage system); o 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 hove
0 filtration step to remove residual floe priorto discharge.
Flow-through systems, at o minimum, consist of a storm water collection system (either
temporary diversion orthe permanent site drainage system), on untreated storm water storage
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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, ff is
important thot 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 moy be mode. The system continually monitors the
storm water for turbidity ond pH, and water is recycled to the untreated pond or holding tank
where it con be treated again if levels ore outside of the acceptable range for discharge.
7.10.2. ATS Plan
Prior to using ATS, on ATS Plan must be submitted to the SWRCB via SMARTS, which contains
the following components:
• ATS Operation ond Maintenance (O&M) Manual for All Equipment;
• ATS Monitoring, Sampling & Reporting Plan (MSRP), including QA/QC;
• ATS Health and Safety Plan; and
• ATS Spill Prevention Plan.
In addition, prior to implementing ATS on-site, jar tests ore required to be conducted for any
chemical/coagulant to be utilized. Jor 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 Q/VQC plan should be prepared as port of the MSRP that is consistent with the QA/QC
elements that apply to general field monitoring identified in Secfion 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 hove specific training to using on 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 Sofety/Toxicity of Coagulants - proper handling and safety;
Monitoring, Sampling, and Analysis;
Reporting and Recordkeeping; and
Emergency Response.
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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 doily at oil times during treatment
operations. Daily on site visual monitoring of the system for proper performance is required to
be conducted and recorded in o project field data log and included in the SWPPP/ATS Plan.
Sample logs ore included in Appendix T.
7.10.5. Operational and Compliance Monitoring
All ATS systems (both batch and flow-through) must hove instrumentation that automatically
measures and records effluent woter quality and flow data. This instrumentation typically will
include:
• Mounted submersible pH and turbidity probes;
• Data loggers (field-read or internet-based); and
• A system control panel that provides automatic shut off or recirculation in cose of
water quality or effiuent limitotion 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 botch 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 rote and volume of treated discharge;
• Influent and effluent pH; and
• Influent and effluent turbidity.
In addition, the following parameters must also be monitored ond recorded:
• Cumulative flow volume - doily;
• Type and amount of pH adjustment chemical - as utilized;
• Dose rote 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 botch 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.
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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 o 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 on
exceedance of on 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 offer the conclusion of the
project (see discussion in Section 7.9.4).
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8. APPENDICES
Appendix A
Appendix B
Bl
B2
B3
B4
B5
B6
Appendix C
Cl
C2
C3
C4
C5
Append X D
Append X E
Append X F
Append xG
Append X H
Append X 1
Append xJ
Append X K
Append X L
Append xM
Append X N
Append xO
Append X P
Append xQ
Append xT
Append X R
Append xS
Append xU
Append xV
Construction General Permit
Exhibits
Vicinity Map
SWPPP Exhibits
Erosion Control Plan, Demolition Plan & Excavation Plan (as appropriate)
Sampling Locations Plan
Post-Construction (SWMP)
Hydrology Maps
Submitted Permit Registration Documents:
PRD Instructions
NOI
Risk Assessment (Sediment and Receiving Water Risk Determination)
Site Map (Including Vicinity Mop)
Signed Certification Statement/Fee Statement & WDID Receipt
Submitted Changes to PRDs / COIs (due to change in ownership or acreage)
SWPPP Amendment Log & SWPPP Amendments
Annual Reporting Requirements
Runoff Coefficient and Run-on Computation Sheets
Construction Activity Schedule & BMP Implementation Schedule
CASQA BMP Handbook Fact Sheets
Training Documentation Forms & Sample Memorandum to Employees
Responsible Parties
Contractors and Subcontractors
Sample Subcontractor Notification Letter and Log
Significant Spill Reports
Quick Reference Disposal Alternatives
Visual Inspection Forms, Reports & Rain Gouge Log
Roin Event Action Plans (REAPs)
Storm Water Sampling Forms
Guidance on Field Measurements
Pollutant Testing Guidance Table
How to Submit an Ad Hoc Report for Construction Site Monitoring
NAL/NEL Exceedance Site Evaluations and Non-Compliance Reports
FUSCOE ENGINEERING, INC. 64
APPENDiX A
CONSTRUCTION GENERAL PERMIT
Linda S. Adams
Secretary for
Environmental Protection
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
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 Charies R. Hoppin
ABSENT: None
ABSTAIN: None
J ea n i i^Townsend
Clerk to the Board
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
Linda S. Adams
Secretary for
Environmental Proiection
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.waterboarcls.ca.gov
Arnold Schwarzenegger
Governor
NATIONAL POLLUTANT DISCHARGE ELIIVIINATION SYSTEIVI (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-underiine 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 Charies R. Hoppin
Vice Chair Frances Spivy-Weber
Board Member Arthur G. Baggett, Jr.
Board Member Tam M. Doduc
NAY: None
ABSENT: None
ABSTAIN: None
J ea n i nig' To wn se n d
Clerk to the Board
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
VHL 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.l - 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 Levei 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
i
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
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
Order
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 ofthe California Environmental Quality Act
(CEQA) (Public Resources Code Section 21100, et seq.), pursuant to
Section 13389 ofthe California Water Code.
6. Pursuant to 40 C.F.R. § 131.12 and State Water Board Resolution No.
68-16.^ 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 ofthe 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).
^ Resolution No. 68-16 generally requires that existing water quality be maintained unless degradation Is
justltied based on specific findings.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
Order
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 ofthe 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.^
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
^ Pursuant to the Ninth Circuit Court of Appeals' decision in NRDC v. EPA (9th Cir. 2008) 526 F.3d 591, and
subsequent denial ofthe 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.
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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 IJniversal 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(/)(2), 33 U.S.C. §
1342(/)(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)^. 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 debris'* 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 SV\/PPP 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.
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.
^ 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.l.
48. Although this General Permit does not mandate specific setback
distances, dischargers are encouraged to set back their construcfion
activifies from streams and wefiands whenever feasible to reduce the
risk of impacfing 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-construcfion storm water performance
standards. The risk calculafion and runoff reducfion 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 fime of the year in California. Therefore,
a Rain Event Acfion Plan (REAP) is necessary for Risk Level 2 and 3
tradifional construcfion projects (LUPs exempt) to ensure that acfive
construcfion sites have adequate erosion and sediment controls
implemented prior to the onset of a storm event, even if construcfion is
planned only during the dry season.
50.Soil particles smaller than 0.02 millimeters (mm) (i.e., finer than
medium silt) do not setfie easily using convenfional measures for
sediment control (i.e., sediment basins). Given their long setfiing fime,
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 (ATS^) can
prevent or reduce the release of fine particles from construction sites.
^ 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 effecfively reduce a site's risk of impacfing
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 acfion to implement addifional BMPs, conduct addifional
monitoring acfivifies, and/or comply with an applicable waste load
allocation and implementafion 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 enfitled, "The Feasibility of Numeric
Effluent Limits Applicable to Discharges of Storm Water Associated
with Municipal, Industrial and Construction Activifies," dated
June 19, 2006. The panel concluded that numeric limits or acfion
levels are technically feasible to control construcfion storm water
discharges, provided that certain condifions are considered. The panel
also concluded that numeric effluent limitations (NELs) are feasible for
discharges from construcfion sites that utilize an ATS. The State
Water Board has incorporated the expert panel's suggestions into this
General Permit, which includes both numeric acfion levels (NALs) and
NELs for pH and turbidity, and special numeric limits for ATS
discharges.
Numeric Effluent Limitations
53. Discharges of storm water from construcfion acfivifies may become
contaminated from alkaline construcfion materials resulfing 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
ufilifies 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
alterafions to the background pH of any discharges.
54. For Risk Level 3 discharges, this General Permit establishes
technology-based, numeric effluent limitafions (NELs) for turbidity of
500 NTU. Exceedances ofthe turbidity NEL constitutes a violafion 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 ofthe NAL and its associated monitoring
requirement is to provide operafional informafion 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 direcfiy 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 Prevenfion Plans (SWPPPs) accordingly to either prevent
pollutants and authorized non-storm water discharges from
contaminafing storm water, or to substanfially reduce the pollutants to
levels consistenfiy 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 violafion of this Permit. This General
Permit requires dischargers with NEL exceedances to implement
addifional monitoring, BMPs, and revise their SWPPPs accordingly.
Dischargers are required to nofify the State and Regional Water
Boards ofthe violafion through the State Water Boards SMARTs
system, and provide an NEL Violafion Report sharing addifional
informafion concerning the NEL exceedance.
I. Receiving Water Limitations
60. This General Permit requires all enrolled dischargers to determine the
receiving waters potenfially 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 inspecfions are required to remain on-
site during the construcfion period and for a minimum ofthree 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 violafion ofthe Numeric Effluent Limitafions
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 complefion 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 evaluafion 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 acfions.
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 construcfion 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. Acfive treatment systems add chemicals to facilitate fiocculafion,
coagulafion and filtrafion of suspended sediment particles. The
uncontrolled release of these chemicals to the environment can
negafively affect the beneficial uses of receiving waters and/or degrade
water quality (e.g., acute and chronic toxicity). Addifionally, the batch
storage and treatment of storm water through an ATS' can potenfially
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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
improperiy designed outfalls.
71. If designed, operated and maintained properiy an ATS can achieve
very high removal rates of suspended sediment (measured as
turbidity), albeit at somefimes significanfiy higher costs than traditional
erosion/sediment control pracfices. 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 operafional and effluent limitafions 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 exempfion from the
technology-based numeric effluent limitafions 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-
construcfion that are consistent with State Water Board Resolufion No.
2005-0006. "Resolufion Adopfing the Concept of Sustainabiiity as a
Core Value for State Water Board Programs and Direcfing Its
Incorporafion," and 2008-0030. "Requiring Sustainable Water
Resources Management." The requirement for all construcfion sites to
match pre-project hydrology will help ensure that the physical and
biological integrity of aquafic 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 pollufion impacts
associated with the post-construcfion landscape.
76. LUP projects are not subject to post-construcfion requirements due to
the nature of their construction to return project sites to pre-
construcfion condifions.
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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 informafion needed to
demonstrate compliance with all requirements of this General Permit,
and must be kept on the construcfion 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 Practifioner to oversee implementafion of the BMPs
required to comply with this General Permit.
N. Regional Water Board Authorities
79. Regional Water Boards are responsible for implementafion and
enforcement of this General Permit. A general approach to permitfing
is not always suitable for every construcfion 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 beneflcial uses of our receiving
waters and prevent degradafion of water quality.
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IT IS HEREBY ORDERED that all dischargers subject to this General Permit
shall comply with the following condifions and requirements (including all
condifions and requirements as set forth in Attachments A, B, C, D, E and F)^:
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 transportafion of
any gaseous, liquid (including water and wastewater for domesfic
municipal services), liquescent, or slurry substance; any cable line or
wire for the transmission of electrical energy; any cable line or wire for
communicafions (e.g. telephone, telegraph, radio or television
messages); and associated ancillary facilifies. Construcfion acfivifies
associated with LUPs include, but are not limited to, (a) those acfivifies
necessary for the installafion of underground and overhead linear
facilifies (e.g., conduits, substructures, pipelines, towers, poles, cables,
wires, connectors, switching, regulafing and transforming equipment,
and associated ancillary facilifies); and include, but are not limited to,
(b) underground ufility mark-out, potholing, concrete and asphalt
cutfing and removal, trenching, excavafion, boring and drilling, access
road and pole/tower pad and cable/wire pull station, substafion
construcfion, substructure installafion, construcfion of tower foofings
and/or foundafions, pole and tower installafions, pipeline installafions,
welding, concrete and/ or pavement repair or replacement, and
stockpile/borrow locafions.
2. The Legally Responsible Person is responsible for obtaining coverage
under the General Permit where the construcfion of pipelines, ufility
lines, fiber-opfic cables, or other linear underground/overhead projects
will occur across several properties unless the LUP construcfion
activities are covered under another construction storm water permit.
3. Only LUPs shall comply with the condifions and requirements in
Attachment A, A.l & A.2 of this Order. The balance of this Order is not
applicable to LUPs except as indicated in Attachment A.
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 Certificafion Requirements, Secfion IV.1.1)
must obtain coverage under this General Permit.
2. To obtain coverage, the LRP must electronically file Permit
Registrafion Documents (PRDs) prior to the commencement of
construcfion acfivity. Failure to obtain coverage under this General
Permit for storm water discharges to waters of the United States is a
violafion of the CWA and the California Water Code.
3. PRDs shall consist of:
a. Nofice of Intent (NOI)
b. Risk Assessment (Section Vlll)
c. Site Map
d. Storm Water Pollufion Prevention Plan (Secfion XIV)
e. Annual Fee
f. Signed Certification Statement
Any informafion 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 informafion. Dischargers must
electronically file the PRDs, and mail the appropriate annual fee to the
State Water Board.
4. This permit is effecfive 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
construcfion acfivifies, and mail the appropriate annual fee no later
than seven days prior to the commencement of construcfion
acfivifies. Permit coverage shall not commence unfil 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:
Exisfing dischargers subject to State Water Board Order No. 99-08-
DWQ (existing dischargers) will confinue coverage under 99-08-
DWQ unfil 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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Exisfing dischargers shall electronically file their PRDs no later than
July 1, 2010. If an exisfing 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 notificafion,
or else lose permit coverage. All exisfing dischargers shall be
exempt from the risk determinafion requirements in Secfion Vlll of
this General Permit until two years after permit adopfion. All
exisfing 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 exisfing discharger to comply with the Secfion Vlll risk
determinafion requirements.
5. The discharger is only considered covered by this General Permit upon
receipt of a Waste Discharger Identificafion (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 documentafion 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. Exisfing dischargers under the prior permit will confinue 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 Construcfion Rainfall Erosivity Waiver
EPA's Small Construction Erosivity Waiver applies to sites between
one and five acres demonstrafing that there are no adverse water
quality impacts.
Dischargers eligible for a Rainfall Erosivity Waiver based on low
erosivity potenfial shall complete the electronic Nofice of Intent (NOI)
and Sediment Risk form through the State Water Board's SMARTS
system, certifying that the construcfion acfivity 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 construcfion,
the new LRP must also submit a waiver certificafion through the
SMARTS system.
If a small construction site confinues beyond the projected complefion
date given on the waiver certification, the LRP shall recalculate the
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rainfall erosivity factor for the new project durafion 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 certificafion and retain a copy of the revised
waiver onsite. The LRP shall submit the new waiver certificafion 30
days prior to the projected complefion date listed on the original waiver
form to assure exempfion from permitfing 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 construcfion
acfivifies, a discharger shall submit a brief descripfion of the
emergency construcfion acfivity within five days of the onset of
construcfion, 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
condifions for terminafion of coverage have been met (See Secfion II.D
Condifions for Termination of Coverage); when ownership of a portion
of the site is sold to a different enfity; or when new acreage, subject to
this General Permit, is added to the site.
2. Within 30 days of a reducfion or increase in total disturbed acreage,
the discharger shall electronically file revisions to the PRDs that
include:
a. A revised NOI indicafing the new project size;
b. A revised site map showing the acreage of the site completed,
acreage currently under construcfion, acreage sold/transferred or
added, and acreage currenfiy stabilized in accordance with the
Condifions for Terminafion of Coverage in Secfion II.D below.
c. SWPPP revisions, as appropriate; and
d. Certification that any new landowners have been nofified of
applicable requirements to obtain General Permit coverage. The
certificafion 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 notificafion.
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3. The discharger shall confinue 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 exisfing
LRP shall inform the new LRP ofthe General Permit's requirements.
In order for the new LRP to confinue the construcfion acfivity 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 construcfion is complete or ownership has
been transferred, the discharger shall electronically file a Nofice of
Terminafion (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 stabilizafion," the site will not pose any
addifional sediment discharge risk than it did prior to the
commencement of construcfion acfivity;
b. There is no potenfial for construcfion-related storm water pollutants
to be discharged into site runoff;
c. Final stabilizafion has been reached;
d. Construction materials and wastes have been disposed of properiy;
e. Compliance with the Post-Construcfion Standards in Secfion XIII of
this General Permit has been demonstrated;
f. Post-construction storm water management measures have been
installed and a long-term maintenance plan'^ has been established;
and
g. All construcfion-related equipment, materials and any temporary
BMPs no longer needed are removed from the site.
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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The discharger shall certify that final stabilizafion condifions are
safisfied in their NOT. Failure to certify shall result in confinuation of
permit coverage and annual billing.
The NOT must demonstrate through photos, RUSLE or RUSLE2, or
results of testing and analysis that the site meets all of the conditions
above (Secfion II.D.1) and the final stabilizafion condition (Secfion
II.D.l.a) is attained by one ofthe following methods:
a. "70% final cover method," no computafional proof required
OR:
b. "RUSLE or RUSLE2 method," computafional 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
stabilizafion" requirement in Section II.D.l.a.
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III. DISCHARGE PROHIBITIONS
A. Dischargers shall not violate any discharge prohibifions 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, irrigafion
of vegetative erosion control measures, pipe flushing and tesfing, 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 violafion 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 construcfion materials or equipment.
5. The discharge does not contain toxic consfituents in toxic amounts or
(other) significant quantifies of pollutants;
6. The discharge is monitored and meets the applicable NALs and NELs;
and
7. The discharger reports the sampling informafion in the Annual Report.
If any of the above condifions are not safisfied, the discharge is not
authorized by this General Permit. The discharger shall notify the
Regional Water Board of any anficipated 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 resulfing from construction acfivifies are prohibited from being
discharged from construcfion 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 acfion, 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 construcfion 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 condifions of this General
Permit. Any permit noncompliance consfitutes a violation of the Clean
Water Act (CWA) and the Porter-Cologne Water Quality Control Act
and is grounds for enforcement acfion and/or removal from General
Permit coverage.
2. The discharger shall comply with effluent standards or prohibifions
established under Secfion 307(a) of the CWA for toxic pollutants within
the fime provided in the regulafions that establish these standards or
prohibifions, 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 modificafion, revocation and reissuance, or
terminafion, or a notificafion of planned changes or anficipated
noncompliance does not annul any General Permit condifion.
2. If any toxic effluent standard or prohibifion (including any schedule of
compliance specified in such effluent standard or prohibifion) is
promulgated under Secfion 307(a) ofthe CWA for a toxic pollutant
which is present in the discharge and that standard or prohibifion is
more stringent than any limitafion 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 prohibifion 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 acfion that it
would have been necessary to halt or reduce the permitted activity in
order to maintain compliance with the condifions of this General Permit.
D. Duty to Mitigate
The discharger shall take all responsible steps to minimize or prevent any
discharge in violafion of this General Permit, which has a reasonable
likelihood of adversely affecfing human health or the environment.
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E. Proper Operation and Maintenance
The discharger shall at all fimes properiy 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 condifions of this General Permit. Proper operafion
and maintenance also includes adequate laboratory controls and
appropriate quality assurance procedures. Proper operafion and
maintenance may require the operafion of backup or auxiliary facilifies 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 regulafions.
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 construcfion site unfil construcfion is
completed.
2. The discharger shall furnish the Regional Water Board, State Water
Board, or U.S. EPA, within a reasonable fime, any requested
informafion 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 construcfion sites which discharge
through a municipal separate storm sewer, an authorized representafive of
the municipal operator of the separate storm sewer system receiving the
discharge, upon the presentafion of credenfials and other documents as
may be required by law, to:
1. Enter upon the discharger's premises at reasonable fimes where a
regulated construcfion acfivity 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 fimes any records that must be kept
under the condifions of this General Permit;
3. Inspect at reasonable fimes the complete construcfion site, including
any off-site staging areas or material storage areas, and the
erosion/sediment controls; and
4. Sample or monitor at reasonable fimes for the purpose of ensuring
General Permit compliance.
I. Electronic Signature and Certification Requirements
1. All Permit Registrafion Documents (PRDs) and Nofices of Terminafion
(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 informafion electronically via SMARTS.
2. Changes to Authorizafion. If an Approved Signatory's authorization is
no longer accurate, a new authorizafion safisfying the requirements of
paragraph (a) of this secfion must be submitted via SMARTS prior to or
together with any reports, information or applicafions to be signed by
an Approved Signatory.
3. All Annual Reports, or other informafion 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 Secfion IV.I above, shall make the
following certificafion:
"I certify under penalty of law that this document and all attachments were
prepared under my direcfion or supervision in accordance with a system
designed to assure that qualified personnel properiy gather and evaluate
the informafion submitted. Based on my inquiry ofthe person or persons
who manage the system or those persons directly responsible for
gathering the informafion, to the best of my knowledge and belief, the
informafion submitted is, true, accurate, and complete. I am aware that
there are significant penalfies for submitfing false informafion, including
the possibility of fine and imprisonment for knowing violafions."
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K. Anticipated Noncompliance
The discharger shall give advance nofice to the Regional Water Board and
local storm water management agency of any planned changes in the
construcfion acfivity, which may result in noncompliance with General
Permit requirements.
L. Bypass
Bypass^ 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;^
2. There were no feasible alternafives to bypass, such as the use of
auxiliary treatment facilities, retenfion of untreated waste, or
maintenance during normal periods of equipment downfime. This
condifion is not safisfied 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
downfime or preventafive maintenance;
3. The discharger submitted a nofice 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 limitafions to be exceeded, but only if it is for essenfial
maintenance to assure efficient operafion. In such a case, the above
bypass condifions are not applicable. The discharger shall submit
nofice ofan unanficipated bypass as required.
M. Upset
1. A discharger that wishes to establish the affirmafive defense of an
upset^° in an acfion brought for noncompliance shall demonstrate.
The intentional diversion of waste streams from any portion of a treatment facility
^ 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.
^° An exceptional incident in which there Is unintentional and temporary noncompliance the technology
based numeric effluent limitations because of factors beyond the reasonable control ofthe 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 properiy signed, contemporaneous operafing 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 properiy operated by the fime of
the upset
c. The discharger submitted nofice of the upset as required; and
d. The discharger complied with any remedial measures required
2. No determinafion made before an acfion of noncompliance occurs,
such as during administrafive review of claims that noncompliance was
caused by an upset, is final administrafive acfion 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 certificafion in any
record or other document submitted or required to be maintained under
this General Permit, including reports of compliance or noncompliance
shall upon convicfion, 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
insfitufion of any legal acfion or relieve the discharger from any
responsibilifies, liabilifies, or penalfies 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 applicafion 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 promulgafion of amended regulafions, receipt
of U.S. EPA guidance concerning regulated acfivifies, judicial decision, or
in accordance with 40 Code of Federal Regulafions (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 penalfies for any person
who violates a permit condifion implemenfing Secfions 301, 302, 306,
307, 308, 318, or 405 of the CWA or any permit condifion or limitafion
implemenfing any such secfion in a permit issued under Secfion 402.
Any person who violates any permit condifion of this General Permit is
subject to a civil penalty not to exceed $37,500^^ per calendar day of
such violafion, as well as any other appropriate sancfion provided by
Secfion 309 of the CWA.
2. The Porter-Cologne Water Quality Control Act also provides for civil
and criminal penalfies, 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 confinues in force and effect unfil 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 confinued General Permit.
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 quanfifies 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 pracfices that achieve
BAT for toxic and non-convenfional pollutants and BCT for
convenfional pollutants.
B. Numeric Effluent Limitations (NELs)
Table 1- Numeric Effluent Limitations, Numeric Action Levels, Test Methods,
Detect on Limits, and Reporting Unii ts
Parameter Test
Method
Discharge
Type
MIn.
Detection
Limit
Units Numeric ,
Action
Level ;
Numeric
Effluent
Limitation
pH
Field test
with
calibrated
portable
instrument
Risk Level 2
0.2 pH
units
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
Turbidity EPA
0180.1
and/or field
test with
calibrated
portable
instrument
Risk Level 2
1 NTU
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 Limitafions (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."
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
violafion of this General Permit and shall electronically file monitoring
results in violafion 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.qif
http://www.wrcc.dri.edu/pcpnfreq/sca5y24.qif
Compliance storm event verificafion 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 acfions as described
below if the discharge is outside of this range of pH values.
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 acfions as
described below ifthe 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 construcfion site and run-on evaluation to
determine whether pollutant source(s) associated with the site's
construcfion acfivity may have caused or contributed to the NAL
exceedance and shall immediately implement correcfive acfions if they
are needed.
4. The site evaluafion 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 activifies and whether addifional
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
correcfive action(s) were taken or will be taken and with a
descripfion of the schedule for complefion.
AND/OR:
b. Are related to the run-on associated with the construcfion site
locafion and whether addifional 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 descripfion ofthe schedule for complefion.
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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 quantifies that
threaten to cause pollufion 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 objecfives or
water quality standards (collecfively, WQS) contained in a Statewide
Water Quality Control Plan, the California Toxics Rule, the Nafional 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 ofthe pollufion.
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Vll. TRAINING QUALIFICATIONS AND CERTIFICATION
REQUIREMENTS
A. General
The discharger shall ensure that all persons responsible for implemenfing
requirements of this General Permit shall be appropriately trained In
accordance with this Secfion. Training should be both formal and
informal, occur on an ongoing basis, and should include training offered by
recognized governmental agencies or professional organizafions. Those
responsible for preparing and amending SWPPPs shall comply with the
requirements in this Secfion Vll.
The discharger shall provide documentation of all training for persons
responsible for implemenfing 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 registrafions
or certificafions, 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 Insfitute
of Hydrology;
e. A Certified Professional in Erosion and Sediment Control (CPESC)
™ registered through Enviro Cert Internafional, Inc.;
f. A Certified Professional in Storm Water Quality (CPSWQ) ™
registered through Enviro Cert Internafional, Inc.;
g. A professional in erosion and sediment control registered through
the Nafional Insfitute for Certificafion in Engineering Technologies
(NICET); or
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Effecfive 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 Practifioner (QSP). A QSP is a person responsible for non-
storm water and storm water visual observafions, sampling and
analysis. Effective two years from the date of adopfion of this General
Permit, a QSP shall be either a QSD or have one of the following
certificafions:
a. A certified erosion, sediment and storm water inspector registered
through Enviro Cert Internafional, Inc.; or
b. A certified inspector of sediment and erosion control registered
through Certified Inspector of Sediment and Erosion Control, Inc.
Effecfive 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 Pracfifioner. 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 lisfing of the date of inifial preparafion and the date of each
amendment in the SWPPP.
Vlll. 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 stabilizafion) and use the
calculated risks to determine a Risk Level(s) using the methodology in
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
33
Order
Appendix 1. For any site that spans two or more planning watersheds, the
discharger shall calculate a separate Risk Level for each planning watershed.
The discharger shall nofify the State Water Board of the site's Risk Level
determinafion(s) and shall include this determinafion as a part of submitfing
the PRDs. If a discharger ends up with more than one Risk Level
determinafion, the Regional Water Board may choose to break the project
into separate levels of implementafion.
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.
Xll. 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.
Planning watershed: defined by the Calwater Watershed documents as a watershed that ranges In size
from approximately 3,000 to 10,000 acres http://caln.lce.ucdavis.edu/calwater/calw/faQ.html.
http://gls.ca.gov/catalog/BrowseRecord.epl?ld=22175.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
34
Order
XIII. POST-CONSTRUCTION STANDARDS
A. All dischargers shall comply with the following runoff reducfion
requirements unless they are located within an area subject to post-
construcfion standards ofan 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 discrefion of the Executive Officer ofthe
Regional Board.
2. The discharger shall demonstrate compliance with the requirements of
this secfion by submitfing with their NOI a map and worksheets in
accordance with the instrucfions 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 reducfion 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 85**^ percenfile 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 pracfices, dischargers shall
document the infeasibility of using non-structural pracfices on the
project site, or document that there will be fewer water quality impacts
through the use of structural pracfices.
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 stream^* or larger stream and ensure that post-
project time of runoff concentration is equal or greater than pre-project
fime of concentrafion.
A first order stream is defined as a stream with no tributaries.
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35
Order
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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36
Order
XIV. SWPPP REQUIREMENTS
A. The discharger shall ensure that the Storm Water Pollufion Prevenfion
Plans (SWPPPs) for all tradifional project sites are developed and
amended or revised by a QSD. The SWPPP shall be designed to address
the following objecfives:
1. All pollutants and their sources, including sources of sediment
associated with construction, construcfion site erosion and all other
activifies associated with construcfion activity are controlled;
2. Where not othenA/ise 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 effecfive and result in the reducfion or eliminafion of
pollutants in storm water discharges and authorized non-storm water
discharges from construction acfivity to the BAT/BCT standard;
4. Calculafions and design details as well as BMP controls for site run-on
are complete and correct, and
5. Stabilizafion 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 informafion in the SWPPP that supports the
conclusions, selecfions, use, and maintenance of BMPs.
C. The discharger shall make the SWPPP available at the construcfion site
during working hours while construcfion 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 construcfion vehicle
and is not currenfiy at the construcfion 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.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
37
Order
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 fall 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 applicafion for Regional Water Board
considerafion of individual requirements.
D. Regional Water Boards may require addifional 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.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
38
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 consisfing of:
1. a summary and evaluafion of all sampling and analysis results,
including copies of laboratory reports;
2. the analyfical method(s), method reporting unit(s), and method
detecfion limit(s) of each analytical parameter (analyfical results that
are less than the method detecfion limit shall be reported as "less than
the method detecfion limit");
3. a summary of all corrective acfions taken during the compliance year;
4. idenfificafion of any compliance activifies or correcfive acfions that
were not implemented;
5. a summary of all violafions of the General Permit;
6. the names of individual(s) who performed the facility inspecfions,
sampling, visual observafion (inspecfions), and/or measurements;
7. the date, place, fime of facility inspecfions, sampling, visual
observafion (inspecfions), and/or measurements, including
precipitafion (rain gauge); and
8. the visual observafion and sample collection excepfion records and
reports specified in Attachments C, D, and E.
E. The discharger shall provide training informafion in the Annual Report
consisfing of:
1. documentafion of all training for individuals responsible for all acfivifies
associated with compliance with this General Permit;
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
39
Order
2. documentafion of all training for individuals responsible for BMP
installafion, inspecfion, maintenance, and repair; and
3. documentafion of all training for individuals responsible for overseeing,
revising, and amending the SWPPP.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
40
ATTACHMENT A
Linear Underground/Overhead Requirements
EXCLUDED FROM THIS VERSION - NOT APPLICALBE
COMPLETE ORDER IS AVAILABLE AT THE WEBSITE BELOW:
http://wvwv.swrcb.ca.gov/water issues/proqrams/stormwater/constpermits.shtml
ATTACHMENT B
ATTACHMENT B
PERMIT REGISTRATION DOCUMENTS (PRDs) TO COMPLYWITH THE TERMS
OF THE GENERAL PERMIT TO DISCHARGE STORM WATER
ASSOCIATED WITH CONSTRUCTION ACTIVITY
GENERAL INSTRUCTIONS
A. All Linear Construcfion 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 construcfion
acfivity 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 construcfion acfivifies 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 acfivifies that are covered under this General
Permit can be found in the General Permit Secfion II.B.
It is the LRP's responsibility to obtain coverage under this General Permit by
electronically submitfing complete PRDs (Permit Registration Documents).
In all cases, the proper procedures for submitfing the PRDs must be completed
before construction can commence.
C. Construction Activity Not Covered By This General Permit
Discharges from construcfion 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 calculafion includes all acres
to be disturbed during the durafion ofthe 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 exisfing Permit Waste Discharge
Identificafion (WDID) number on a case-by-case basis. In general, any acreage
to be considered must be configuous to the permitted land area and the exisfing
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
ATTACHMENT B
SWPPP must be appropriate for the construcfion acfivity and topography ofthe
acreage under considerafion. As acreage is built out and stabilized or sold, the
Change of Informafion (COI) form enables the applicant to remove those acres
from inclusion in the annual fee calculafion. Checks should be made payable to:
State Water Board.
The Annual fees are established through regulafions adopted by the State Water
Board. The total annual fee is the current base fee plus applicable surcharges for
all construcfion sites submitfing an NOI, based on the total acreage to be
disturbed during the life of the project. Annual fees are subject to change by
regulafion.
Dischargers that apply for and satisfy the Small Construcfion 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 activifies subject to this General Permit
must submit their PRDs prior to the commencement of construcfion acfivity.
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 construcfion as defined below.
G. Standard PRD Requirements (All Dischargers)
1. Nofice of Intent
2. Risk Assessment (Standard or Site-Specific)
3. Site Map
4. SWPPP
5. Annual Fee
6. Certificafion
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-Construcfion 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 operafion of the ATS and a paper copy shall be
available onsite during ATS operafion.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
ATTACHMENT B
b. Certificafion proof that design done by a professional in accordance with
Attachment F.
3. Dischargers who are proposing an alternate Risk Justificafion:
a. Particle Size Analysis.
I. Exceptions to Standard PRD Requirements
Construcfion 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. Construcfion site boundaries
d. Drainage areas
e. Discharge locafions
f. Sampling locafions
g. Areas of soil disturbance (temporary or permanent)
h. Acfive areas of soil disturbance (cut or fill)
i. Locafions of all runoff BMPs
j. Locafions of all erosion control BMPs
k. Locafions of all sediment control BMPs
I. ATS locafion (if applicable)
m. Locations of sensifive habitats, watercourses, or other features which are
not to be disturbed
n. Locafions of all post-construction BMPs
o. Locafions of storage areas for waste, vehicles, service, loading/unloading
of materials, access (entrance/exits) points to construcfion 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 ufilizafion of the following:
i. Receiving water Risk Assessment interacfive map
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3
ATTACHMENT B
ii. EPA Rainfall Erosivity Factor Calculator Website
iii. Sediment Risk interacfive map
iv. Sediment sensifive water bodies list
b. The Site-Specific Risk Assessment includes the complefion 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 instrucfions.
6. ATS Design Document and Certification
All dischargers using ATS must submit electronically their system design (as
well as any supporting documentafion) 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 ofthe 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 applicafion package in the order received and assign a (WDID) number.
Quesfions?
If you have any quesfions on complefing the PRDs please email
stormwater(a)waterboards.ca.gov or call (866) 563-3107.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
4
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 narrafive
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 quanfifies
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 pracfices that achieve
BAT for toxic and non-convenfional pollutants and BCT for
convenfional 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
potenfially 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 condifions
(i.e. poles, equipment pads, cabinets, conductors, insulators,
bricks, etc.).
b. Cover and berm loose stockpiled construction materials that are not
acfively being used (i.e. soil, spoils, aggregate, fly-ash, stucco,
hydrated lime, etc.).
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
ATTACHMENT C
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 condifions (i.e. poles,
equipment pads, cabinets, conductors, insulators, bricks, etc.).
e. Implement BMPs to prevent the off-site tracking of loose
construcfion 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 sanitafion facilifies (e.g., portable toilets)
to prevent discharges of pollutants to the storm water drainage
system or receiving water.
c. Clean or replace sanitation facilifies and inspecfing them regulariy
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 fimes unless acfively being used.
g. Implement procedures that effecfively address hazardous and non-
hazardous spills.
h. Develop a spill response and implementafion element of the
SWPPP prior to commencement of construcfion acfivifies. 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
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
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 underiying 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
properiy.
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 acfively being used.
b. Contain fertilizers and other landscape materials when they are not
acfively being used.
c. Disconfinue the applicafion of any erodible landscape material
within 2 days before a forecasted rain event or during periods of
precipitafion.
d. Apply erodible landscape material at quanfifies and applicafion
rates according to manufacture recommendafions 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 idenfify any areas of the site where
addifional BMPs are necessary to reduce or prevent pollutants In storm
water discharges and authorized non-storm water discharges. This
potenfial pollutant list shall be kept with the SWPPP and shall idenfify
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3
ATTACHMENT C
all non-visible pollutants which are known, or should be known, to
occur on the construcfion site. At a minimum, when developing BMPs,
Risk Level 1 dischargers shall do the following:
a. Consider the quanfity, physical characterisfics (e.g., liquid, powder,
solid), and locafions of each potenfial 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 retenfion of sampling, visual observafion, and inspecfion
records.
e. Ensure effectiveness of exisfing 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 construcfion site to control the air deposition of site
materials and from site operafions. 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 construcfion.
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.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
4
ATTACHMENT C
D. Erosion Controi
1. Risk Level 1 dischargers shall implement effecfive wind erosion
control.
2. Risk Level 1 dischargers shall provide effective soil cover for inacfive^
areas and all finished slopes, open space, ufility backfill, and
completed lots.
3. Risk Level 1 dischargers shall limit the use of plasfic materials when
more sustainable, environmentally friendly alternafives exist. Where
plasfic materials are deemed necessary, the discharger shall consider
the use of plasfic materials resistant to solar degradafion.
E. Sediment Controls
1. Risk Level 1 dischargers shall establish and maintain effecfive
perimeter controls and stabilize all construcfion entrances and exits to
sufficienfiy 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 Construcfion BMP Guidance
Handbook.
F. Run-on and Runoff Controls
Risk Level 1 dischargers shall effecfively 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 inspecfion, maintenance
repair and sampling acfivifies at the project locafion shall be performed
or supervised by a Qualified SWPPP Pracfifioner (QSP) represenfing
the discharger. The QSP may delegate any or all of these acfivifies to
an employee trained to do the task(s) appropriately, but shall ensure
adequate deployment.
2. Risk Level 1 dischargers shall perform weekly inspecfions and
observafions, and at least once each 24-hour period during extended
^ 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.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
5
ATTACHMENT C
storm events, to idenfify and record BMPs that need maintenance to
operate effecfively, 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 implemenfing repairs or
design changes to BMPs within 72 hours of identification and complete
the changes as soon as possible.
4. For each inspecfion required. Risk Level 1 dischargers shall complete
an inspecfion checklist, using a form provided by the State Water
Board or Regional Water Board or in an alternafive format.
5. Risk Level 1 dischargers shall ensure that checklists shall remain
onsite with the SWPPP and at a minimum, shall include:
a. Inspecfion date and date the inspecfion report was written.
b. Weather informafion, including presence or absence of
precipitafion, esfimate of beginning of qualifying storm event,
durafion of event, fime elapsed since last storm, and approximate
amount of rainfall in inches.
c. Site informafion, including stage of construcfion, acfivifies
completed, and approximate area ofthe site exposed.
d. A descripfion of any BMPs evaluated and any deficiencies noted.
e. If the construcfion site is safely accessible during inclement
weather, list the observafions of all BMPs: erosion controls,
sediment controls, chemical and waste controls, and non-storm
water controls. Otherwise, list the results of visual inspecfions at all
relevant outfalls, discharge points, downstream locafions and any
projected maintenance activifies.
f. Report the presence of noficeable odors or of any visible sheen on
the surface of any discharges.
g. Any correcfive acfions required, including any necessary changes
to the SWPPP and the associated implementation dates.
h. Photographs taken during the inspecfion, if any.
i. Inspector's name, tifie, and signature.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
6
ATTACHMENT C
H. Rain Event Action Plan
Not required for Risk Level 1 dischargers.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
7
ATTACHMENT C
I. Risk Level 1 Monitoring and Reporting Requirements
Risk
Level
Visual Inspections Sample Collection
Risk
Level
Quarteriy
Non-
storm
Water
Discharge
Pre-storm
Event Daily
Storm
BMP
Post
Storm
Storm
Water
Discharge
Receiving
Water
Risk
Level
Quarteriy
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 ofthe 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. Exisfing
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
construcfion site and are causing or contribufing to exceedances of
water quality objecfives;
c. To determine whether immediate corrective acfions, addifional Best
Management Pracfice (BMP) implementafion, 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 effecfive
in prevenfing or reducing pollutants in storm water discharges and
authorized non-storm water discharges.
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
precipitafion of Vz inch or more at the fime of discharge. Stored or
contained storm water that will likely discharge after operafing
hours due to anticipated precipitafion shall be observed prior to the
discharge during operafing hours.
c. Risk Level 1 dischargers shall conduct visual observafions
(inspecfions) during business hours only.
d. Risk Level 1 dischargers shall record the fime, 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 correcfive acfions.
ii. All BMPs to identify whether they have been properiy
implemented in accordance with the SWPPP. If needed, the
discharger shall implement appropriate correcfive acfions.
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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 (inspecfions) described in e.i and e.iii
above, Risk Level 1 dischargers shall observe the presence or
absence of floafing and suspended materials, a sheen on the
surface, discolorafions, 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 (inspecfions) to (1) identify whether BMPs were
adequately designed, implemented, and effecfive, and (2) identify
addifional BMPs and revise the SWPPP accordingly.
h. Risk Level 1 dischargers shall maintain on-site records of all visual
observafions (inspecfions), personnel performing the observafions,
observafion dates, weather condifions, locafions observed, and
correcfive acfions taken in response to the observafions.
4. Risk Level 1 - Visual Observation Exemptions
a. Risk Level 1 dischargers shall be prepared to conduct visual
observafion (inspecfions) unfil the minimum requirements of
Secfion 1.3 above are completed. Risk Level 1 dischargers are not
required to conduct visual observafion (inspecfions) under the
following condifions:
i. During dangerous weather condifions such as flooding and
electrical storms.
ii. Outside of scheduled site business hours.
b. If no required visual observafions (inspecfions) are collected due to
these excepfions. Risk Level 1 dischargers shall include an
explanafion in their SWPPP and in the Annual Report documenfing
why the visual observafions (inspecfions) were not conducted.
5. Risk Level 1 - Monitoring Methods
Risk Level 1 dischargers shall include a descripfion of the visual
observafion locafions, visual observafion procedures, and visual
observafion 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 indicafions of prior)
unauthorized and authorized non-storm water discharges and
their sources.
ii. Risk Level 1 dischargers shall conduct one visual observafion
(inspecfion) quarterly in each ofthe following periods: January-
March, April-June, July-September, and October-December.
Visual observafion (inspecfions) are only required during
daylight hours (sunrise to sunset).
iii. Risk Level 1 dischargers shall ensure that visual observafions
(inspecfions) document the presence or evidence of any non-
storm water discharge (authorized or unauthorized), pollutant
characteristics (floating and suspended material, sheen,
discolorafion, turbidity, odor, etc.), and source. Risk Level 1
dischargers shall maintain on-site records indicafing the
personnel performing the visual observafion (inspecfions), the
dates and approximate fime 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 contacfing 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, malfuncfion, leakage, or spill observed during a visual
inspecfion 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 condifions.
c. Risk Level 1 dischargers shall collect samples at all discharge
locafions 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 indicafing 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 addifional 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.^
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 alternafive 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 informafion 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 construcfion is ongoing. These
records include:
a. The date, place, fime of facility inspecfions, sampling, visual
observafion (inspecfions), and/or measurements, including
precipitafion.
b. The individual(s) who performed the facility inspections, sampling,
visual observafion (inspecfions), and or measurements.
c. The date and approximate fime of analyses.
d. The individual(s) who performed the analyses.
^ 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
e. A summary of all analyfical results from the last three years, the
method detecfion limits and reporting units, and the analyfical
techniques or methods used.
f. Rain gauge readings from site inspecfions.
g. Quality assurance/quality control records and results.
h. Non-storm water discharge inspecfions and visual observafion
(inspecfions) and storm water discharge visual observafion records
(see Secfions 1.3 and 1.6 above).
i. Visual observafion and sample collecfion excepfion records (see
Secfion 1.4 above).
j. The records of any correcfive acfions and follow-up acfivifies that
resulted from analyfical results, visual observafion (inspections), or
inspecfions.
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13
ATTACHMENT D
ATTACHMENT D
RISK LEVEL 2 REQUIREMENTS
A. Effluent Standards
[These requirements are the same as those In the General Permit order.]
1. Narrafive - 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 quanfifies
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 pracfices that achieve
BAT for toxic and non-conventional pollutants and BCT for
convenfional 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 construcfion materials that could
potenfially 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 ofthe 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 condifions
(i.e. poles, equipment pads, cabinets, conductors, insulators,
bricks, etc.).
b. Cover and berm loose stockpiled construction materials that are not
acfively 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 construcfion materials to precipitafion. This
does not include materials and equipment that are designed to be
outdoors and exposed to environmental condifions (i.e. poles,
equipment pads, cabinets, conductors, insulators, bricks, etc.).
e. Implement BMPs to prevent the off-site tracking of loose
construcfion 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 sanitafion facilifies (e.g., portable toilets)
to prevent discharges of pollutants to the storm water drainage
system or receiving water.
c. Clean or replace sanitafion facilifies and inspecfing them regulariy
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 fimes unless actively being used.
g. Implement procedures that effectively address hazardous and non-
hazardous spills.
h. Develop a spill response and implementafion element of the
SWPPP prior to commencement of construction activifies. 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 properiy.
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2
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
properiy.
4. Risk Level 2 dischargers shall implement good housekeeping for
landscape materials, which, at a minimum, shall consist ofthe
following:
a. Contain stockpiled materials such as mulches and topsoil when
they are not acfively being used.
b. Contain all fertilizers and other landscape materials when they are
not acfively being used.
c. Disconfinue the applicafion of any erodible landscape material
within 2 days before a forecasted rain event or during periods of
precipitafion.
d. Apply erodible landscape material at quantifies and applicafion
rates according to manufacture recommendafions or based on
written specificafions 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 potenfial pollutant sources and idenfify any areas of the site where
addifional BMPs are necessary to reduce or prevent pollutants in storm
water discharges and authorized non-storm water discharges. This
potenfial pollutant list shall be kept with the SWPPP and shall Identify
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3
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 characterisfics (e.g., liquid, powder,
solid), and locafions of each potenfial pollutant source handled,
produced, stored, recycled, or disposed of atthe 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 retenfion of sampling, visual observafion, and inspecfion
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 construcfion site to control the air deposifion of site
materials and from site operafions. 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 Ufilifies, or
Vertical Construcfion for tradifional land development projects.
C. Non-Storm Water Management
1. Risk Level 2 dischargers shall implement measures to control all non-
storm water discharges during construcfion.
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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4
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 effecfive wind erosion
control.
2. Risk Level 2 dischargers shall provide effecfive soil cover for inactive^
areas and all finished slopes, open space, ufility backflll, and
completed lots.
3. Risk Level 2 dischargers shall limit the use of plasfic materials when
more sustainable, environmentally friendly alternatives exist. Where
plasfic materials are deemed necessary, the discharger shall consider
the use of plasfic materials resistant to solar degradafion.
E. Sediment Controls
1. Risk Level 2 dischargers shall establish and maintain effecfive
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
stabilizafion) in conjunction with sediment control BMPs for areas
under acfive^ construcfion.
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 lengths^ in accordance with Table 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.
^ 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.
^ Sheet flow length is the length that shallow, low velocity flow travels across a site.
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5
ATTACHMENT D
Table 1 - Critical Slope/Sheet Flow Length Combinations
Slope Percentage Sheet fiow 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 construcfion acfivity 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 activifies 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 inspecfion, maintenance
repair and sampling acfivities at the project locafion shall be performed
or supervised by a Qualified SWPPP Pracfifioner (QSP) represenfing
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 inspecfions and
observations, and at least once each 24-hour period during extended
storm events, to identify and record BMPs that need maintenance to
operate effecfively, 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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ATTACHMENT D
3. Upon identifying failures or other shortcomings, as directed by the
QSP, Risk Level 2 dischargers shall begin implemenfing repairs or
design changes to BMPs within 72 hours of identificafion 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. Inspecfion date and date the inspecfion report was written.
b. Weather informafion, including presence or absence of
precipitafion, esfimate of beginning of qualifying storm event,
durafion of event, fime elapsed since last storm, and approximate
amount of rainfall in inches.
c. Site informafion, including stage of construction, activifies
completed, and approximate area ofthe site exposed.
d. A descripfion of any BMPs evaluated and any deficiencies noted.
e. If the construcfion site is safely accessible during inclement
weather, list the observafions of all BMPs: erosion controls,
sediment controls, chemical and waste controls, and non-storm
water controls. Otherwise, list the results of visual inspecfions at all
relevant outfalls, discharge points, downstream locations and any
projected maintenance acfivifies.
f. Report the presence of noficeable odors or of any visible sheen on
the surface of any discharges.
g. Any correcfive acfions required, including any necessary changes
to the SWPPP and the associated implementafion dates.
h. Photographs taken during the inspecfion, 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 Acfion Plan (REAP) 48 hours prior to any
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ATTACHMENT D
likely precipitafion event. A likely precipitafion event is any weather
pattern that is forecast to have a 50% or greater probability of
producing precipitafion in the project area. The discharger shall
ensure a QSP obtain a printed copy of precipitafion forecast
informafion 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 construcfion (i.e.. Grading
and Land Development, Streets and Ufilifies, Vertical Construcfion,
Final Landscaping and Site Stabilizafion).
3. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP ensure that the REAP include, at a minimum, the following site
informafion:
a. SiteAddress
b. Calculated Risk Level (2 or 3)
c. Site Storm Water Manager Informafion including the name,
company, and 24-hour emergency telephone number
d. Erosion and Sediment Control Provider informafion including the
name, company, and 24-hour emergency telephone number
e. Storm Water Sampling Agent informafion 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
informafion:
a. Acfivities associated with each construcfion phase
b. Trades active on the construction site during each construcfion
phase
c. Trade contractor informafion
d. Suggested acfions for each project phase
5. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP develop additional REAPs for project sites where construction
acfivifies are indefinitely halted or postponed (Inacfive Construcfion).
At a minimum, Inacfive Construcfion REAPs must include:
a. Site Address
b. Calculated Risk Level (2 or 3)
c. Site Storm Water Manager Informafion including the name,
company, and 24-hour emergency telephone number
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ATTACHMENT D
d. Erosion and Sediment Control Provider informafion including the
name, company, and 24-hour emergency telephone number
e. Storm Water Sampling Agent informafion including the name,
company, and 24-hour emergency telephone number
f. Trades active on site during Inacfive Construction
g. Trade contractor information
h. Suggested acfions for inacfive construction sites
6. Additional Risk Level 2 Requirement: The discharger shall ensure a
QSP begin implementafion and make the REAP available onsite no
later than 24 hours prior to the likely precipitafion 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 retenfion requirements ofthe Special Provisions in this
General Permit.
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ATTACHMENT D
I. Risk Level 2 Monitoring and Reporting Requirements
Risk
Level
Visual Inspections Sample Collection
Risk
Level
Quarterly
Non-
storm
Water
Discharge
Pre-storm
Event Daily
Storm
BMP
Post
Storm
Storm
Water
Discharge
Receiving
Water
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, locafion
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 refiect project revisions. The
CSMP shall be a partof 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. Exisfing
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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ATTACHMENT D
a. To demonstrate that the site is in compliance with the Discharge
Prohibifions and applicable Numeric Acfion Levels (NALs)/Numeric
Effluent Limitafions (NELs) of this General Permit.
b. To determine whether non-visible pollutants are present at the
construcfion site and are causing or contribufing to exceedances of
water quality objecfives.
c. To determine whether immediate correcfive acfions, addifional Best
Management Pracfice (BMP) Implementafion, 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 effecfive in prevenfing or reducing
pollutants in storm water discharges and authorized non-storm
water discharges.
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 locafions 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 Vz inch or more at the fime of discharge. Stored or
contained storm water that will likely discharge after operafing
hours due to anficipated precipitafion shall be observed prior to the
discharge during operafing hours.
c. Risk Level 2 dischargers shall conduct visual observafions
(inspecfions) during business hours only.
d. Risk Level 2 dischargers shall record the fime, 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 acfions.
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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 correcfive acfions.
iii. any storm water storage and containment areas to detect leaks
and ensure maintenance of adequate freeboard.
f. For the visual observations (inspecfions) described in ci and ciii
above. Risk Level 2 dischargers shall observe the presence or
absence of floafing and suspended materials, a sheen on the
surface, discolorafions, 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
observafions (inspecfions) to (1) identify whether BMPs were
adequately designed, implemented, and effecfive, and (2) identify
addifional BMPs and revise the SWPPP accordingly.
h. Risk Level 2 dischargers shall maintain on-site records of all visual
observafions (inspecfions), personnel performing the observafions,
observafion dates, weather conditions, locafions observed, and
correcfive acfions 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 locafions, as defined in Secfion 1.5. The storm water
grab sample(s) obtained shall be representafive of the flow and
characterisfics 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 precipitafion of
Vz inch or more at the fime of discharge).
Storm Water Effluent Monitoring Reguirements
d. Risk Level 2 dischargers shall analyze their effluent samples for:
i. pH and turbidity.
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ATTACHMENT D
ii. Any addifional parameters forwhich monitoring is required by
the Regional Water Board.
5. Risk Level 2 - Storm Water Discharge Water Quality Sampling
Locations
Effluent Sampling Locafions
a. Risk Level 2 dischargers shall perform sampling and analysis of
storm water discharges to characterize discharges associated with
construction activity from the enfire 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 represent"* the effluent in each drainage
area based on visual observation of the water and upstream
condifions.
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 locafion
representafive ofthe nature ofthe discharge.
f. Risk Level 2 dischargers shall select analyfical test methods from
the list provided in Table 3 below.
g. All storm water sample collecfion preservafion and handling shall
be conducted in accordance with Secfion 1.7 "Storm Water Sample
Collecfion 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 observafion (inspections) unfil the minimum
requirements of Secfions 1.3 and 1.4 above are completed. Risk
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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ATTACHMENT D
Level 2 dischargers are not required to physically collect samples
or conduct visual observafion (inspecfions) under the following
condifions:
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 observafion (inspecfions) are
collected due to these excepfions. Risk Level 2 dischargers shall
include an explanafion in their SWPPP and in the Annual Report
documenfing why the sampling or visual observafion (inspecfions)
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, detecfion limits, and reporting units.
b. Risk Level 2 dischargers shall ensure that tesfing 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).^
8. Risk Level 2 - Monitoring Methods
a. Risk Level 2 dischargers shall include a descripfion of the following
items in the CSMP:
i. Visual observafion locafions, visual observafion procedures, and
visual observation follow-up and tracking procedures.
ii. Sampling locafions, and sample collecfion and handling
procedures. This shall include detailed procedures for sample
^ Additional information regarding SWAMP's QAPrP and QAMP can be found at
http://www.waterboards.ca.qov/water Issues/proqrams/swamp/.
QAPrP:http://vww.waterboards.ca.aov/water issues/programs/swamp/docs/Qapp/swamp qapp master090
108a.pdf.
QAMP: http://www.waterboards.ca.aov/water issues/proqrams/swamp/qamp.shtml.
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ATTACHMENT D
collection, storage, preservafion, and shipping to the tesfing 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. Identificafion ofthe analyfical methods and related method
detecfion limits (If applicable) for each parameter required in
Section 1.4 above.
b. Risk Level 2 dischargers shall ensure that all sampling and sample
preservafion are in accordance with the current edition of "Standard
Methods for the Examination of Water and Wastewater" (American
Public Health Associafion). All monitoring instruments and
equipment (including a discharger's own fleld instruments for
measuring pH and turbidity) should be calibrated and maintained in
accordance with manufacturers' speciflcafions 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 excepfion 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, properiy 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, detecfion 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 Secfion 1.14, 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 indicafions of prior)
unauthorized and authorized non-storm water discharges and
their sources.
ii. Risk Level 2 dischargers shall conduct one visual observation
(inspecfion) quarteriy in each ofthe following periods: January-
March, April-June, July-September, and October-December.
Visual observafion (inspecfions) are only required during
daylight hours (sunrise to sunset).
iii. Risk Level 2 dischargers shall ensure that visual observafions
(inspecfions) document the presence or evidence of any non-
storm water discharge (authorized or unauthorized), pollutant
characterisfics (floafing and suspended material, sheen,
discolorafion, turbidity, odor, etc.), and source. Risk Level 2
dischargers shall maintain on-site records indicafing the
personnel performing the visual observafion (inspecfions), the
dates and approximate fime 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 Locafions:
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, malfuncfion, 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 condifions.
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 flrst 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 indicafing the
presence of pollutants identified in the pollutant source assessment
required (Risk Level 2 dischargers shall modify their CSMPs to
address these addifional 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.^
h. Risk Level 2 dischargers shall keep all field /or analyfical 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 Secfions 1.5. The Regional Water Board may approve
proposals to subsfitute an acceptable watershed-based monitoring
program by determining if the watershed-based monitoring program
® 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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17
ATTACHMENT D
will provide substanfially similar monitoring informafion in evaluafing
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 informafion 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 construcfion is ongoing. These
records include:
a. The date, place, fime of facility inspecfions, sampling, visual
observafion (inspecfions), and/or measurements, including
precipitafion.
b. The individual(s) who performed the facility inspecfions, sampling,
visual observafion (inspecfions), and or measurements.
c. The date and approximate fime of analyses.
d. The individual(s) who performed the analyses.
e. A summary of all analytical results from the last three years, the
method detecfion limits and reporting units, the analyfical
techniques or methods used, and the chain of custody forms.
f. Rain gauge readings from site inspecfions;
g. Quality assurance/quality control records and results.
h. Non-storm water discharge inspecfions and visual observafion
(inspections) and storm water discharge visual observafion records
(see Secfions 1.3 and 1.10 above).
i. Visual observation and sample collecfion excepfion records (see
Secfion 1.6 above).
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ATTACHMENT D
j. The records of any correcfive acfions and follow-up activifies that
resulted from analytical results, visual observafion (inspections), or
inspecfions.
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 Construcfion Acfivity.
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
detecfion limit(s) of each analytical parameter (analyfical results
that are less than the method detecfion limit shall be reported as
"less than the method detection limit").
ii. The date, place, fime of sampling, visual observation
(inspecfions), and/or measurements, including precipitafion.
iii. A descripfion of the current BMPs associated with the effluent
sample that exceeded the NAL and the proposed correcfive
acfions taken.
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ATTACHMENT D
Table 3 - Risk Level 2 Test Methods, Detection Limits, Reporting U nits 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
Turbidity EPA 0180.1
and/or field test
with calibrated
portable
instrument
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
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ATTACHMENT E
ATTACHMENT E
RISK LEVEL 3 REQUIREMENTS
A. Effluent Standards
[These requirements are the same as those In the General Permit order.]
1. Narrafive - 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 quantifies
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 pracfices that achieve
BAT for toxic and non-convenfional pollutants and BCT for
convenfional 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 addifion. 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
potenfially 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 condifions
(i.e. poles, equipment pads, cabinets, conductors, insulators,
bricks, etc.).
b. Cover and berm loose stockpiled construction materials that are not
acfively being used (i.e. soil, spoils, aggregate, fly-ash, stucco,
hydrated lime, etc.).
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ATTACHMENT E
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 precipitafion. This
does not include materials and equipment that are designed to be
outdoors and exposed to environmental condifions (I.e. poles,
equipment pads, cabinets, conductors, insulators, bricks, etc.).
e. Implement BMPs to prevent the off-site tracking of loose
construcfion 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 sanitafion facilifies (e.g., portable toilets)
to prevent discharges of pollutants to the storm water drainage
system or receiving water.
c. Clean or replace sanitafion facilifies and inspecfing them regulariy
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 protecfing stockpiled waste material from
wind and rain at all fimes unless acfively being used.
g. Implement procedures that effecfively address hazardous and non-
hazardous spills.
h. Develop a spill response and implementafion element of the
SWPPP prior to commencement of construcfion activifies. 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 properiy; 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 underiying 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
properiy.
4. Risk Level 3 dischargers shall implement good housekeeping for
landscape materials, which, at a minimum, shall consist ofthe
following:
a. Contain stockpiled materials such as mulches and topsoil when
they are not acfively being used.
b. Contain fertilizers and other landscape materials when they are not
acfively being used.
c. Disconfinuing the applicafion of any erodible landscape material
within 2 days before a forecasted rain event or during periods of
precipitafion.
d. Applying erodible landscape material at quanfifies and applicafion
rates according to manufacture recommendations or based on
written specificafions 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 potenfial pollutant sources and idenfify any areas of the site where
addifional BMPs are necessary to reduce or prevent pollutants in storm
water discharges and authorized non-storm water discharges. This
potenfial 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 construcfion site. At a minimum, when developing BMPs,
Risk Level 3 dischargers shall do the following:
a. Consider the quantity, physical characterisfics (e.g., liquid, powder,
solid), and locations of each potenfial 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 observafion, and inspecfion
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 construcfion site to control the air deposition of site
materials and from site operafions. 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 construcfion project.
Construcfion phases at tradifional land development projects include
Grading and Land Development Phase, Streets and Ufilifies, or
Vertical Construcfion for tradifional land development projects.
C. Non-Storm Water Management
1. Risk Level 3 dischargers shall implement measures to control all non-
storm water discharges during construcfion.
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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ATTACHMENT E
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 inactive^
areas and all finished slopes, open space, ufility backfill, and
completed lots.
3. Dischargers shall limit the use of plasfic materials when more
sustainable, environmentally friendly alternafives exist. Where plasfic
materials are deemed necessary, the discharger shall consider the use
of plasfic materials resistant to solar degradafion.
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 Construcfion BMP Guidance
Handbook.
3. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
implement appropriate erosion control BMPs (runoff control and soil
stabilizafion) in conjuncfion with sediment control BMPs for areas
under active^ construcfion.
4. Additional Risk Level 3 Requirement: Risk Level 3 dischargers shall
apply linear sediment controls along the toe of the slope, face ofthe
slope, and at the grade breaks of exposed slopes to comply with sheet
flow lengths^ in accordance with Table 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.
^ 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
^ Sheet flow length Is the length that shallow, low velocity flow travels across a site.
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ATTACHMENT E
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 construcfion acfivity 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. fire washoff
locafions) are maintained and protected from acfivifies that reduce their
effectiveness.
8.
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).
Additional Risk Level 3 Requirement: The Regional Water Board
may require Risk Level 3 dischargers to implement additional site-
specific sediment control requirements ifthe implementafion of the
other requirements in this secfion are not adequately protecfing the
receiving waters.
F. Run-on and Run-off Controls
Risk Level 3 dischargers shall effecfively 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 acfivifies at the project locafion shall be performed
or supervised by a Qualified SWPPP Pracfitioner (QSP) representing
the discharger. The QSP may delegate any or all of these acfivifies to
an employee appropriately trained to do the task(s).
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ATTACHMENT E
2. Risk Level 3 dischargers shall perform weekly inspecfions and
observafions, and at least once each 24-hour period during extended
storm events, to identify and record BMPs that need maintenance to
operate effecfively, 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 implemenfing repairs or
design changes to BMPs within 72 hours of identificafion and complete
the changes as soon as possible.
4. For each inspecfion 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 alternafive format.
5. Risk Level 3 dischargers shall ensure that checklists shall remain
onsite with the SWPPP and at a minimum, shall include:
a. Inspecfion date and date the inspection report was written.
b. Weather informafion, including presence or absence of
precipitation, esfimate of beginning of qualifying storm event,
durafion of event, fime elapsed since last storm, and approximate
amount of rainfall in inches.
c. Site informafion, including stage of construction, acfivifies
completed, and approximate area ofthe site exposed.
d. A descripfion of any BMPs evaluated and any deficiencies noted.
e. If the construcfion site is safely accessible during inclement
weather, list the observafions 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 locafions and any
projected maintenance acfivifies.
f. Report the presence of noficeable odors or of any visible sheen on
the surface of any discharges.
g. Any correcfive acfions required, including any necessary changes
to the SWPPP and the associated implementafion dates.
h. Photographs taken during the inspecfion, if any.
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7
ATTACHMENT E
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 precipitafion event. A likely precipitafion event Is any weather
pattern that is forecast to have a 50% or greater probability of
producing precipitafion in the project area. The QSP shall obtain a
printed copy of precipitafion forecast informafion 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 Ufilifies, Vertical Construction,
Final Landscaping and Site Stabilizafion).
3. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP ensure that the REAP include, at a minimum, the following site
informafion:
a. Site Address.
b. Calculated Risk Level (2 or 3).
c. Site Storm Water Manager Informafion 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 informafion 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 informafion:
a. Activities associated with each construcfion phase.
b. Trades active on the construction site during each construcfion
phase.
c. Trade contractor information.
d. Suggested acfions for each project phase.
5. Additional Risk Level 3 Requirement: The QSP shall develop
addifional REAPs for project sites where construcfion activifies are
indefinitely halted or postponed (Inacfive Construcfion). At a minimum,
Inacfive Construcfion REAPs must include:
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ATTACHMENT E
a. Site Address.
b. Calculated Risk Level (2 or 3).
c. Site Storm Water Manager Informafion including the name,
company, and 24-hour emergency telephone number.
d. Erosion and Sediment Control Provider informafion including the
name, company, and 24-hour emergency telephone number.
e. Storm Water Sampling Agent informafion including the name,
company, and 24-hour emergency telephone number.
f. Trades active on site during Inactive Construcfion.
g. Trade contractor informafion.
h. Suggested acfions for inacfive construction sites.
6. Additional Risk Level 3 Requirement: The discharger shall ensure a
QSP begin implementafion 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 ofthe Special Provisions in this
General Permit.
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ATTACHMENT E
I. Risk Level 3 Monitoring and Reporting Requirements
Risk
Level
Visual Inspections Sample Collection
Risk
Level
Quarterly
Non-
storm
Water
Discharge
Pre-storm
Event Daily
Storm
BMP
Post
Storm
Storm
Water
Discharge
Receiving
Water
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 X^
1. Construction Site Monitoring Program Requirements
a. Pursuant to Water Code Secfions 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, locafion
maps, forms, and checklists as required in this secfion. The CSMP
shall be developed prior to the commencement of construction
acfivities, and revised as necessary to reflect project revisions. The
CSMP shall be a part ofthe 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 priorto completion or final stabilizafion, the new
discharger shall comply with these requirements as ofthe date the
ownership change occurs.
2. Objectives
The CSMP shall be developed and implemented to address the
following objectives:
When NEL exceeded
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ATTACHMENT E
a. To demonstrate that the site is in compliance with the Discharge
Prohibifions and applicable Numeric Acfion Levels (NALs)/Numeric
Effluent Limitafions (NELs) of this General Permit.
b. To determine whether non-visible pollutants are present at the
construcfion site and are causing or contributing to exceedances of
water quality objectives.
c. To determine whether immediate corrective acfions, addifional Best
Management Pracfice (BMP) implementafion, 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
Acfion Plan (REAP) are effective in prevenfing 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 locafions 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 Vz inch or more at the fime of discharge. Stored or
contained storm water that will likely discharge after operafing
hours due to anticipated precipitafion shall be observed prior to the
discharge during operafing hours.
c. Risk Level 3 dischargers shall conduct visual observafions
(inspecfions) during business hours only.
d. Risk Level 3 dischargers shall record the fime, 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 correcfive acfions.
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ATTACHMENT E
ii. all BMPs to identify whether they have been properly
implemented in accordance with the SWPPP/REAP. If needed,
the discharger shall implement appropriate correcfive acfions.
iii. any storm water storage and containment areas to detect leaks
and ensure maintenance of adequate freeboard.
f. For the visual observafions (inspecfions) described in ci. and ciii
above. Risk Level 3 dischargers shall observe the presence or
absence of floafing 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 effecfive, and (2) identify
additional BMPs and revise the SWPPP accordingly.
h. Risk Level 3 dischargers shall maintain on-site records of all visual
observafions (inspecfions), personnel performing the observafions,
observafion dates, weather condifions, locafions observed, and
correcfive acfions 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 locafions, as defined in Secfion 1.5. The storm water
grab sample(s) obtained shall be representafive 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 precipitafion of Vz
inch or more at the fime of discharge).
Storm Water Effluent Monitoring Reguirements
d. Risk Level 3 dischargers shall analyze their effluent samples for:
i. pH and turbidity.
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ATTACHMENT E
ii. Any addifional 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 specifled in Secfion l.4.e, above, and Suspended
Sediment Concentrafion (SSC).
Receiving Water Monitoring Reguirements
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 l.4.e above for the durafion 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 locafion secfion (Secfion 1.5),
below.
5. Risk Level 3 - Storm Water Discharge Water Quality Sampling
Locations
Effluent Sampling Locafions
a. Risk Level 3 dischargers shall perform sampling and analysis of
storm water discharges to characterize discharges associated with
construction acfivity from the enfire 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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13
ATTACHMENT E
c. Risk Level 3 dischargers shall ensure that storm water discharge
collected and observed represent^ the effluent in each drainage
area based on visual observafion 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 locafion
representafive ofthe nature ofthe discharge.
f. Risk Level 3 dischargers shall select analyfical test methods from
the list provided in Table 3 below.
g. All storm water sample collecfion preservafion and handling shall
be conducted in accordance with Secfion 1.7 "Storm Water Sample
Collecfion and Handling Instructions" below.
Receiving Water Sampling Locafions
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 locafion 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 representafive and accessible
locafion as close as possible and downstream from the effluent
discharge point.
j. If two or more discharge locafions discharge to the same receiving
water. Risk Level 3 dischargers may sample the receiving water at
a single upstream and downstream locafion.
^ For example, if there has been concrete work recentiy 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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14
ATTACHMENT E
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 (inspecfions) unfil the minimum
requirements of Secfions 1.3 and 1.4 above are completed. Risk
Level 3 dischargers are not required to physically collect samples
or conduct visual observafion (inspecfions) under the following
condifions:
i. During dangerous weather condifions such as flooding and
electrical storms.
ii. Outside of scheduled site business hours.
b. tf no required samples or visual observafion (inspecfions) are
collected due to these excepfions, Risk Level 3 dischargers shall
include an explanafion in their SWPPP and in the Annual Report
documenfing why the sampling or visual observafion (inspecfions)
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, detecfion limits, and reporting units.
b. Risk Level 3 dischargers shall ensure that tesfing laboratories will
receive samples within 48 hours of the physical sampling (unless
othenA/ise 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).^
® Additional information regarding SWAMP's QAPrP and QAMP can be found at
http://www.waterboards.ca.qov/water issues/proqrams/swamp/.
QAPrP:http://www.waterboards.ca.gov/waterJssues/programs/swamp/docs/qapp/swamp_qapp_
master090108a.pdf
QAMP: http://www.waterboards.ca.gov/water_issues/programs/swamp/qamp.shtml
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15
ATTACHMENT E
8. Risk Level 3 - Monitoring Methods
a. Risk Level 3 dischargers shall include a descripfion of the following
items in the CSMP:
i. Visual observafion locafions, visual observafion procedures, and
visual observation follow-up and tracking procedures.
li. Sampling locafions, and sample collecfion and handling
procedures. This shall include detailed procedures for sample
collecfion, storage, preservafion, and shipping to the tesfing 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. Identificafion ofthe analyfical methods and related method
detection limits (if applicable) for each parameter required in
Secfion 1.4 above.
b. Risk Level 3 dischargers shall ensure that all sampling and sample
preservation are in accordance with the current edifion 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' specificafions 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 excepfion). Risk Level 3 dischargers shall
conduct their own field analysis of pH and may conduct their own
field analysis of turbidity ifthe discharger has sufficient capability
(qualified and trained employees, properiy 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, detecfion limits, and reporting units.
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16
ATTACHMENT E
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 Secfion 1.14, 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:
1. 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 observafion
(inspecfion) quarteriy in each of the following periods: January-
March, April-June, July-September, and October-December.
Visual observafion (inspecfions) are only required during
daylight hours (sunrise to sunset).
iii. Risk Level 3 dischargers shall ensure that visual observafions
(inspecfions) document the presence or evidence of any non-
storm water discharge (authorized or unauthorized), pollutant
characterisfics (floafing and suspended material, sheen,
discolorafion, turbidity, odor, etc.), and source. Risk Level 3
dischargers shall maintain on-site records indicafing the
personnel performing the visual observafion (inspections), the
dates and approximate fime 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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17
ATTACHMENT E
reduce or prevent pollutants from contacfing non-storm water
discharges.
b. Effluent Sampling Locafions:
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 certifled for such analyses by the State
Department of Health Services.
iii. Risk Level 3 dischargers shall monitor and report run-on from
surrounding areas tf 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
inspecfion 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 condifions.
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 indicafing the
presence of pollutants identified in the pollutant source assessment
required (Risk Level 3 dischargers shall modify their CSMPs to
adciress these addifional 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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18
ATTACHMENT E
g. Risk Level 3 dischargers shall compare the uncontaminated sample
to the samples of discharge using field analysis or through
laboratory analysis.^
h. Risk Level 3 dischargers shall keep all field /or analyfical 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 Secfions 1.5. 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 substanfially similar monitoring informafion in evaluafing
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 alternafive 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 informafion 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 construcfion is ongoing. These
records include:
a. The date, place, fime of facility inspecfions, sampling, visual
observation (inspecfions), and/or measurements, including
precipitafion.
b. The individual(s) who performed the facility inspecfions, sampling,
visual observafion (inspecfions), and or measurements.
c. The date and approximate fime of analyses.
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 E
d. The indivldual(s) who performed the analyses.
e. A summary of all analyfical results from the last three years, the
method detecfion limits and reporting units, the analyfical
techniques or methods used, and the chain of custody forms.
f. Rain gauge readings from site inspecfions.
g. Quality assurance/quality control records and results.
h. Non-storm water discharge inspecfions and visual observafion
(inspections) and storm water discharge visual observafion records
(see Sections 1.3 and 1.10 above).
i. Visual observafion and sample collecfion excepfion records (see
Secfion 1.6 above).
j. The records of any correcfive actions and follow-up acfivifies that
resulted from analytical results, visual observafion (inspecfions), or
inspecfions.
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 Acfivity
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 analyfical method(s), method reporting unit(s), and method
detecfion limit(s) of each analytical parameter (analytical results
that are less than the method detecfion limit shall be reported as
"less than the method detecfion limit").
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20
ATTACHMENT E
ii. The date, place, fime of sampling, visual observafion
(inspecfions), and/or measurements, including precipitation.
iii. A descripfion of the current BMPs associated with the effluent
sample that exceeded the NAL and the proposed correcfive
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 Violafion 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 Violafion Report in
accordance with the Special Provisions for Construction Acfivity in
this General Permit.
d. Risk Level 3 dischargers shall retain an electronic or paper copy of
each NEL Violafion 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 Violafion Report:
i. The analytical method(s), method reporting unit(s), and method
detection llmit(s) of each analytical parameter (analyfical results
that are less than the method detecfion limit shall be reported as
"less than the method detecfion limit");
ii. The date, place, fime of sampling, visual observafion
(inspecfions), and/or measurements, including precipitafion; and
iii. A Description ofthe current onsite BMPs, and the proposed
correcfive acfions 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 verificafion.
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21
ATTACHMENT E
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 collecfion and reporting of specified in stream
biological data and physical habitat.
iii. Use the bioassessment sample collecfion and Quality
Assurance & Quality Control (QA/QC) protocols developed by
the State of California's Surface Water Ambient Monitoring
Program (SWAMP).^
b. Risk Level 3 dischargers qualifying for bioassessment, where
construcfion commences out of an Index period for the site locafion
shall:
i. Receive Regional Board approval for the sampling excepfion.
ii. Conduct bioassessment monitoring, as described in Appendix 3.
iii. Include the collecfion and reporting of specified instream
biological data and physical habitat.
iv. Use the bioassessment sample collecfion 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 Foundafion (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 compensafion (upon regional board
approval).
^ http://www.waterboards.ca.qov/water issues/proqrams/swamp/.
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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
Turbidity EPA 0180.1
and/or field test
with calibrated
portable
instrument
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 3977-97^
Risk Level 3
(if NEL
exceeded)
5 mg/L N/A N/A
Bioassessment (STE) Level 1 of
(SAFIT), ^"fixed-
count of 600
org/sample
Risk Level 3
projects> 30
acres
N/A N/A N/A N/A
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.
The current SAFIT STEs (28 November 2006) list requirements for both the Level I and Level II taxonomic effort, and are located at:
hti:p://www.swrcb.ca.qov/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,
Parameter fest
Method Typi
fVlin.
Detection
Limit
Units Numeric
Action
Lev^l
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 Acfive 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 specificafion 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 setfied floc^ during floe pumping or related operafions.
3. The discharger shall design outiets 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 flve years construction storm
^ Floe is deflned as a clump of solids formed by the chemical action in ATS systems.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
ATTACHMENT F
water experience or who is a licensed contractors speciflcally holding a California
Class A Contractors license.^
5. The discharger shall prepare an ATS Plan that combines the site-specific data
and treatment system information required to safely and efficientiy operate an
ATS. The ATS Plan shall be electronically submitted to the State Water Board at
least 14 days prior to the planned operafion of the ATS and a paper copy shall be
available onsite during ATS operafion. At a minimum, the ATS Plan shall
include:
a. ATS Operafion 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 Prevenfion 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 condifions 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 condifions warrant,
for example If construcfion acfivifies disturb changing types of soils, which
consequently cause change in storm water and runoff characterisfics.
E. Residual Chemical and Toxicity Requirements
1. The discharger shall ufilize a residual chemical test method that has a method
detection limit (MDL) of 10% or less than the maximum allowable threshold
^ 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. rhttp://vwvw.cslb.ca.qov/General-lnformatlon/librarv/licensinq-classlfications.aspl.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
2
ATTACHMENT F
concentrafion^ (MATC) for the specific coagulant in use and for the most
sensitive species ofthe chemical used.
2. The discharger shall ufilize 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 detecfion limit of the coagulant. The discharger shall
electronically submit this documentafion as part of the ATS Plan.
Ifthe discharger cannot ufilize a residual chemical test method that meets the
requirements above, the discharger shall operate the ATS In Batch Treatment
mode.
.4
5. A discharger planning to operate in Batch Treatment mode shall perform toxicity
testing in accordance with the following:
a. The discharger shall inifiate acute toxicity tesfing on effluent samples
represenfing effluent from each batch priorto discharge^. All bioassays shall
be sent to a laboratory certified by the Department of Health Services (DHS)
Environmental Laboratory Accreditafion Program (ELAP). The required fleld
of tesfing number for Whole Effluent Toxicity (WET) tesfing is El 13.^
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
oufiined 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 subsfitute 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 tesfing.
d. The discharger shall electronically report all acute toxicity tesfing.
^ The Maximum Allowable Threshold Concentration (MATC) Is the allowable concentration of residual, or dissolved,
coagulant/flocculant In efl'luent. 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 Efl^ect 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.
" Batch Treatment mode is deflned 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.
^ This requirement only requires that the test be initiated prior to discharge.
® http://www.dhs.ca.gov/ps/ls/elap/pdf/FOT_Desc.pdf.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3
ATTACHMENT F
F. Filtration
1. The ATS shall include a filtrafion 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. Differenfial pressure measurements shall be taken to monitor filter loading and
conflrm that the final filter stage is funcfioning properiy.
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 operafions shall be
done in accordance with all local, state, and federal laws and regulafions.
H. ATS Instrumentation
1. The ATS shall be equipped with instrumentafion that automafically 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. Cumulafive flow volume shall be recorded daily. The data recording system shall
have the capacity to record a minimum of seven days confinuous data.
5. Instrumentafion 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
recommendafions, which shall be included in the QA/QC plan.
8. The QA/QC plan shall also specify calibrafion procedures and frequencies,
instrument method detecfion limit or sensifivity verificafion, laboratory duplicate
procedures, and other pertinent procedures.
9. The instrumentafion system shall include a method for controlling coagulant
dose, to prevent potenfial overdosing. Available technologies include
flow/turbidity proportional metering, periodic jar tesfing 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 prohibifions 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 MATC^ for the most sensifive species of
the chemical used.
3. If an analyfical 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 violafion of this General
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 ofthe NOEC (No
Observed Effect Concentration) and LOEC (Lowest Observed Effect Concentration) Acute and Chronic toxicity
results for most sensitive species determined for the speciflc coagulant. The most sensitive species test shall be
used to determine the MATC.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
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.wrccdri.edu/pcpnfreQ/ncal0v24.aif
httn://www.wrcc.dri.edu/pcpnfreQ/scalOv24.aif
This exempfion 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 Operafion and Maintenance (O&M)
Manual covering the procedures required to install, operate and maintain the
ATS.^
2. The O&M Manual shall only be used in conjuncfion with appropriate project-
specific design specificafions that describe the system configuration and
operafing parameters.
3. The O&M Manual shall have operafing 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 - Calibrafion methods and frequencies for all system and field
instruments shall be specified.
^ The manual is typically in a modular format covering generalized procedures for each component that Is utilized in a
particular system.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
6
ATTACHMENT F
b. Method Detecfion 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 certlflcate renewal.
3. Training shall include a minimum of eight hours classroom and 32 hours fleld
training. The course shall cover the following topics:
a. Coagulafion Basics -Chemistry and physical processes
b. ATS System Design and Operafing Principles
c. ATS Control Systems
d. Coagulant Selection - Jar testing, dose determinafion, 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 fimes during
treatment operafions.
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 operafion and monitoring.
ii. The log shall include documentafion ofthe responsible person's training.
2. Operafional and Compliance Monitoring
a. Flow shall be confinuously monitored and recorded at not greater than 15-
mlnute intervals for total volume treated and discharged.
b. Influent and effluent pH must be confinuously monitored and recorded at not
greaterthan 15-minute intervals.
c. Influent and effluent turbidity (expressed in NTU) must be confinuously
monitored and recorded at not greater than 15-mlnute 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
operafion.
t 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/addifive levels.
h. If a residual chemical/addifive test does not exist and the ATS is operafing in
a batch treatment mode of operafion refer to the toxicity monitoring
requirements below.
3. Toxicity Monitoring
A discharger operafing In batch treatment mode shall perform toxicity testing in
accordance with the following:
a. The discharger shall inifiate acute toxicity tesfing on effluent samples
representing effluent from each batch prior to discharge.® All bioassays shal
be sent to a laboratory certifled by the Department of Health Services (DHS)
This requirement only requires that the test be initiated priorto discharge.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
8
ATTACHMENT F
Environmental Laboratory Accreditafion Program (ELAP). The required field
of tesfing number for Whole Effluent Toxicity (WET) tesfing is El 13.^°
b. Acute toxicity tests shall be conducted with the following species and
protocols. The methods to be used in the acute toxicity tesfing shall be those
oufiined 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 subsfitute 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 tesfing.
4. Reporting and Recordkeeping
At a minimum, every 30 days a LRP represenfing the discharger shall access the
State Water Boards Storm Water Mulit-Applicafion 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 indicafions of toxicity or other violafions of water quality objecfives 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 Violafion Report to the State
Water Board within 24 hours after the NEL exceedance has been identified.
i. ATS dischargers shall certify each NEL Violafion Report in accordance
with the Special Provisions for Construcfion Acfivity in this General Permit.
ii. ATS dischargers shall retain an electronic or paper copy of each NEL
Violafion Report for a minimum of three years after the date the annual
report is filed.
iii. ATS dischargers shall include in the NEL Violafion Report:
^° http://vww.dhs.ca.qov/ps/ls/elap/pdf/FOT Desc.pdf.
http://www.epa.qov/watersclence/methods/wet/.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
ATTACHMENT F
(1) The analyfical method(s), method reporting unit(s), and method
detecfion limit(s) of each analytical parameter (analyfical results
that are less than the method detecfion limit shall be reported as
"less than the method detecfion limit");
(2) The date, place, fime of sampling, visual observafion (inspecfions),
and/or measurements, including precipitafion; and
(3) A descripfion ofthe current onsite BMPs, and the proposed
correcfive actions taken to manage the NEL exceedance.
iv. Compliance Storm Exempfion - 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
verificafion.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
10
Appendix 1
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 Determine Receiving Water Risk via one of the options
2 listed:
1. GIS map of Sediment Sensitive Watersheds provided
(in development)
2. List of Sediment Sensitive Watersheds provided
Step
3 Determine Combined Risk Level
2009-0009-DWQ 1 September 2,2009
Appendix 1
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
(130) (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.qov/npdes/stormwater/LEW/lewCalculator.cfm
R Factor Value
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
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
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
Low
2009-0009-DWQ September 2, 2009
Appendix 1
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,
mulfiply the R factor fimes the value for K times LS from the map.
http://cfpub.epa.qov/npdes/stormwater/LEW/lewCalculator.cfm
Regional Board Boundaries £3
USEPA EMAP Risk Categories
kls4
Water Bo.irds
Slate Waler Resources Control Board, January 15.2008
2009-0009-DWQ September 2, 2009
Appendix 1
Receiving Water (RW) Risk Factor Worksheet Entry Score
A. Watershed Characteristics yes/no
A.l. Does the disturbed area discharge (either directiy or indirectiy) to a 303(d)-ilsted
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://wvw.waterboards.ca.qov/water issues/oroarams/tmdl/303d Iists2006 epa.shtml Yes High
OR
A.2. Does the disturbed area discharge to a waterbody with designated beneficial uses
of SPAWN & COLD & MIGRATORY?
hffD://www.ice.ucdavis.edu/qeowbs/asp/wbause.asp
2009-0009-DWQ September 2, 2009
Appendix 1
u c
>
•(D
O
0
Combined Risk Level IVIatrix
Sediment Risk
Low Medium High
Low Level 1 Level 2
High Level 2 Level 3
Project Sediment Risk:
Project RW Risk:
Low
High
Project Combined Risk:
2009-0009-DWQ September 2, 2009
Appendix 1
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 Goidman et. al., 1986.
2009-0009-DWQ September 2, 2009
Appendix 1
Average Watershed Slope (%)
Sheet
Flow
Length
(ft)
<3
6
9
12
15
25
50
75
100
150
200
250
300
400
600
800
1000
0.2
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.5
0.07
0.07
0.07
0.07
0.07
0.07
0.08
0.08
0.09
0.09
0.10
0.10
0.10
0.11
0.12
0.12
0.13
1.0
0.09
0.09
0.09
0.09
0.09
0.10
0.13
0.14
0.15
0.17
0.18
0.19
0.20
0.22
0.24
0.26
0.27
2.0
0.13
0.13
0.13
0.13
0.13
0.16
0.21
0.25
0.28
0.33
0.37
0.40
0.43
0.48
0.56
0.63
0.69
3.0
0.17
0.17
0.17
0.17
0.17
0.21
0.30
0.36
0.41
0.50
0.57
0.64
0.69
0.80
0.96
1.10
1.23
4.0
0.20
0.20
0.20
0.20
0.20
0.26
0.38
0.47
0.55
0.68
0.79
0.89
0.98
1.14
1.42
1.65
1.86
5.0
0.23
0.23
0.23
0.23
0.23
0.31
0.46
0.58
0.68
0.86
1.02
1.16
1.28
1.51
1.91
2.25
2.55
6.0
0.26
0.26
0.26
0.26
0.26
0.36
0.54
0.69
0.82
1.05
1.25
1.43
1.60
1.90
2.43
2.89
3.30
8.0
0.32
0.32
0.32
0.32
0.32
0.45
0.70
0.91
1.10
1.43
1.72
1.99
2.24
2.70
3.52
4.24
4.91
10.0
0.35
0.37
0.38
0.39
0.40
0.57
0.91
1.20
1.46
1.92
2.34
2.72
3.09
3.75
4.95
6.03
7.02
12.0
0.36
0.41
0.45
0.47
0.49
0.71
1.15
1.54
1.88
2.51
3.07
3.60
4.09
5.01
6.67
8.17
9.57
14.0
0.38
0.45
0.51
0.55
0.58
0.85
1.40
1.87
2.31
3.09
3.81
4.48
5.11
6.30
8.45
10.40
12.23
16.0
0.39
0.49
0.56
0.62
0.67
0.98
1.64
2.21
2.73
3.68
4.56
5.37
6.15
7.60
10.26
12.69
14.96
20.0
0.41
0.56
0.67
0.76
0.84
1.24
2.10
2.86
3.57
4.85
6.04
7.16
8.23
10.24
13.94
17.35
20.57
LS Factors for Construction Sites. Table from
Renardet. al., 1997.
2009-0009-DWQ September 2, 2009
APPENDIX 2
APPENDIX 2:
Post-Construction Water Balance Performance Standard
Spreadsheet
The discharger shall submit with their Nofice of Intent (NOI) the following
informafion 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-construcfion 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 ofthe 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 reducfion credits
to reduce the project-related increase in runoff volume to pre-project levels.
The discharger has the opfion of using the spreadsheet (Appendix 2.1) or a
more sophisficated, watershed process-based model (e.g. Storm Water
Management Model, Hydrological Simulafion 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
Step 1: Enter the
Step 2: Enter the
Step 3: Enter the
Step 4: Enter the
Step 5: Enter the
Step 6: Enter the
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
APPENDIX 2
Step 7: Enter the exisfing rooftop area in cell HI7 or J17, the exisfing non-
rooftop impervious area in cell HI8 or J18, the proposed rooftop area in
cell HI9 or J19, and the proposed non-rooftop impervious area in cell
H20 or J20
Step 8: Work through each of the impervious area reducfion credits and claim
credits where applicable. Volume that cannot be addressed using non-
structural pracfices must be captured in structural pracfices and
approved by the Regional Water Board.
Step 9: Work through each of the Impervious volume reducfion credits and
claim credits where applicable. Volume that cannot be addressed
using non-structural pracfices 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
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
Completa Either Calculated Acres
Sq Ft Acres 9.oa
0 0.09
0 0.00
0 0.00
0 0.00
Crodlts
Porous Pavement
Acres Square Feel Crodlts
Porous Pavement 0.00 0
Tree Plantina 0.00 0
Downspout Disconnection 0.00 0
imoervious Area Disconnection 0.00 0
Green Roof 0.00 0
Stream Buffer 0.00 0
Veaetated Swales 0.00 0
SubtotBl 0.00 0
MM lal r{ i II V 1 im. 1 .d ll n .dl 0 Cu. Ft.
Porous Pavement Credit Worksheet
Please fill out a porous pavement credit worksheet for each project sub-watershed.
Fill in either Acres or SqFt
Proposed Porous Pavement Runoff Reduction* In SqFt. In Acres Equivalent Acres
Ar«a of Brick without Grout on less than 12 inches of base with at least 20% voki
space over soil 0.45 0.00
Arfsa nf Brick without Grout on more than 12 inches of base with at least 20% void
space over soil 0.00 0.00
Area of Cobbles le^s than 12 inches deep and over soil 0.30 0.00
Area of Cobbles |^^s than 12 ir^ches deep and over soil 0.60 0.00
ArM nf Rflinforned Grass Pavement on less than 12 inches of base with at least 20%
vokJ space over soil 0.45 0.00
Area of Reinforced Grass Pavement on at least 12 inches of base with at least 20%
void soace over soil 0.90 0.00
Area nf Porous Gravel Pavement on tess than 12 inches of base with at least 20%
vokl space over soil 0.38 0.00
Ama nf Porous Gravel Pavement on at least 12 inches of base with at least 20% vokl
space over soil 0.75 0.00
Aroa nf Pniireri Pnrniis Concrete or Asohalt Pavement with less than 4 inches of
qravel base (washed stone) 0.40 0.00
ArRfl nf Pniintd PnrniM Concrete or Asohalt Pavement with 4 to 8 inches of oravel
base (washed stone) 0.60 0.00
Arfia nf Pniired Porous Concrete or Asohalt Pavement with 8 to 12 inches of aravel
base (washed stone) 0.80 0.00
Amn nf Poured Porous Concrete or Asohalt Pavement with 12 or more inchesof
qravel base (washed stone) 1.00 0,00
'=1-Rv" Return lo Calculator
"Using site Design Techniques lo meet Developmenl Standards for Stormwater Quality (BASMAA 2003)
"NCDENR Stormwater BMP Manual (2007)
Tree Planting Credit Worlcsheet
Please fill out a tree canopy credit workstieet for each project sub-waterstied.
Tree Canopy Credit Criteria
Number of Trees
Planted Credit (acres)
Number of proposed evergreen trees to be planted (credit = number of trees x 0.005)* 0.00
Number of proposed deciduous trees to be planted (credit = number of trees x 0.0025)* 0.00
Square feel Under
Canopy
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. 0.00
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.
Please describe below how the project will ensure that these trees will be maintained.
0.00
Return to Calculator
* credit amount based on credits from Stormwater Quality Design Manual for the Sacramento and South Placer Regions
Downspout Disconnection Credit Worksheet
Please fill out a downspout disconnection credit worksheet for eacfi 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.
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?
OYes ®No
Is the area of rooftop connecting to each disconnected downspout 600 square feet or less?
OYes ®No
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?
OYes ®No
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?
The Stream Buffer and/or Vegetated Swale credits will not be taken in this sub-watershed area?
OYes ®No
Percentage of existing 0.00 Acres
of rooftop surface has disconnected
downspouts
Percentage of the proposed 0.00 Acres
of rooftop surface has disconnected
downspouts
50
Return to Calculator
Impervious Area Disconnection Credit Worksheet
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 Response
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?
®Yes ONO 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 ONO
The Stream Buffer credit will not be taken in this sub-watershed area? ®Yes ONO
Percentage of existing 0.00 Acres non-rooftop surface area disconnected
Percentage of the
proposed 0.00 Acres non-rooftop surface area disconnected 70
Return to Calculator
.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
Is the roof slope less than 15% or does it have a grid to hold the substrate in
place unfil it forms a thick vegetafion mat?
Has a professional engineer assessed the necessary load reserves and
designed a roof structure to meet state and local codes?
(S)
Is the irrigafion 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 0.0
exisfing 0 Acres rooftop surface area in greenroof
Percentage of the 0.0
proposed 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
quesfions, you may subtract all impervious surface draining to each stream buffer that has not been
addressed using the Downspout and/or Impervious Area Disconnecfion credits.
Stream Buffer Credit Criteria
Does runoff enter the floodprone width* or within 500 feet (whichever is
larger) of a stream channel as sheet flow**?
Is the contribufing overiand slope 5% or less, or if greater than 5%, is a
level spreader used?
J2fm
Is the buffer area protected from vehicle or other traffic barriers to reduce
compacfion?
Will the stream buffer be maintained in an ungraded and uncompacted
condition and will the vegetafion be maintained in a natural condifion?
Qlhi
Percentage of
exisfing 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 condifion and that the
vegetation will be maintained in a natural condifion.
Return to Calculator
floodprone width is the width at twice the bankfull depth.
* the maximum contribufing length shall be 75 feet for impervious area
Vegetated Swale Credit Worksheet
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?
OVes ® No
OYes ® No
Percentage of existing 0.00 Acres of Impervious area draining to a vegetated swale
Percentage of the proposed 0.00 Acres of impervious area draining to a vegetated swale
Return to Calculator
Rain Barrel/Cistern Credit Worksheet
Please fill out a rain barrel/cistern worksheet for each project sub-watershed.
Rain Barrel/Cistern Credit Criteria Response
Total number of rain barrel(s)/cisterns
Average capacity of rain barrel(s)/cistern(s) (in gallons)
Total capacitv rain barrel(s)/cistern(s) (in cu ft) ^ 0
accounts for 10% loss Return to Calculator
Please fill out a soil quality worksheet for each project sub-watershed.
Response
Will the landscaped area be lined with an impervious membrane?
O Yes ® No Will the soils used for landscaping meet the ideal bulk densities listed in Table 1 below?' O Yes ® No
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^)*, fill in the cell to the right and
skip to cell Gl 1. If not select from the drop-down menu in Gl 0.
1.3
If you answered yes to the question above, but you do not know the exact bulk density, which
ofthe soil types in the drop down menu to the right best describes the top 12 inches for soils
used for landscaping (in g/cm').
Sandy loams, loams
What is the average depth of your landscaped soil media meeting the above criteria (inches)? 12
What is the total area of the landscaped areas meeting the above criteria (in acres)? 2.97
Table 1
Sands, loamy sands <1.6
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
^ USDA NRCS. "Soil Quality Urban Technical Note
No.2-Urban Soil Compaction". March 2000.
http://soils.usda.qov/sQi/manaaement/files/sQ utn 2.pdf
Return to Calculator
Porosity (%) 50.94%
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
* To determine how to calculate density see:
http://www.qlobe.aov/tctQ/bulkden.pdf?sectionlD=94
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 direcfiy 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 secfion, to assess the effect of the project on the biological
integrity of receiving waters.
Bioassessment shall include:
1. The collecfion and reporting of specified instream biological data
2. The collecfion and reporting of specified instream physical habitat data
Bioassessment Excepfion
If a site qualifies for bioassessment, but construcfion commences out of an index
period for the site locafion, the discharger shall:
1. Receive Regional Water Board approval for the sampling excepfion
2. Make a check payable to: Cal State Chico Foundafion (SWAMP Bank
Account) or San Jose State Foundafion (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 compensafion (upon Regional Water Board approval).
5. Conduct bioassessment monitoring, as described in Appendix 4
6. Include the collecfion and reporting of specified instream biological data
and physical habitat
7. Use the bioassessment sample collecfion and Quality Assurance &
Quality Control (QA/QC) protocols developed by the State of California's
Surface Water Ambient Monitoring Program (SWAMP)
Site Locafions and Frequency
Macroinvertebrate samples shall be collected both before ground disturbance is
inifiated and after the project is completed. The "after" sample(s) shall be
collected after at least one winter season resulfing 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 Collecfion)
Macroinvertebrate sampling shall be conducted during the fime 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://v\AAAA/.waterboards.ca.gov/water issues/proqrams/stormwater/construcfion.s
html
Field Methods for Macroinvertebrate Collecfions
In collecfing 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).^
Physical - Habitat Assessment Methods
The discharger shall conduct, concurrenfiy 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.
Laboratorv Methods
Macroinvertebrates shall be idenfified and classified according to the Standard
Taxonomic Effort (STE) Level I ofthe Southwestern Associafion of Freshwater
Invertebrate Taxonomists (SAFIT),^ and using a fixed-count of 600 organisms
per sample.
Qualitv 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., verificafion of taxonomic identificafions and correcfion of data where
' This document Is available on the Internet at: http://vww.swrcb.Ga.qov/swamp/docs/phab sopr6:Bdf.
http://swamp.mpsl.mlml.calstate.edu/wp-
content/uploads/2009/04/swamp sop bioassessment collection 020107.pdf.
^ The current SAFIT STEs (28 November 2006) list requirements for both the Level I and Level II taxonomic
effort, and are located at: http://wvw.Gwrob.oa.qov/swamp/docs/safit/Gto list.-edf
http ://www. safit .orq/Docs/ste I Ist. 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 Aquafic
Bioassessment Laboratory. An alternate laboratory with equivalent or better
expertise and performance may be used if approved in wrifing by State Water
Board staff.
Sample Preservafion and Archiving
The original sample material shall be stored in 70 percent ethanol and retained
by the discharger unfil: 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 unfil 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 ofthe identified taxon.) Each ofthe vials containing identified
organisms shall be labeled with taxonomic informafion (i.e., taxon name,
organism count) and collecfion informafion (i.e., site name/site code, waterbody
name, date collected, method of collecfion). 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 desiccafion. 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 identificafions 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. Unfil those formats are available, the biological data shall be
submitted in MS-Excel (or equivalent) format.^
The physical/habitat data shall be reported using the standard format titled
SWAMP Stream Habitat Characterization Form — Full Version."^
^ Any version of Excel, 2000 or later, may be used.
" Available at:
http://vww.waterboards.ca.aov/water Issues/proqrams/swamp/docs/reports/fieldforms fullverslon052908.pd
f
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
3
Invasive Species Prevenfion
In conducfing the required bioassessment monitoring, the discharger and its
consultants shall take precaufions to prevent the introducfion or spread of aquatic
invasive species. At minimum, the discharger and its consultants shall follow the
recommendafions of the California Department of Fish and Game to minimize the
introducfion or spread ofthe New Zealand mudsnail.^
^ Instructions for controlling the spread of NZ mudsnails, including decontamination methods, can be found
at: http://vww.dfq.ca.qov/invaslves/mudsnail/
More Information on AIS More information on AIS
http://www.waterboards.ca.qov/water issues/proqrams/swamp/als/
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
4
APPENDIX 4
Appendix 4 Sediment TMDLs
Implemented Sediment TMDLs in California. Construcfion was listed as a source in all fo these TMDLs in reiafion to road construcfion.
Although construction was menfioned as a source, it was not given a specific allocafion amount. The closest allocafion 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 mi^ yr
1
RI.epa.albionfinalt
mdl
R Albion River Sedimentafion Road Construction 2001 43 acres See A
(table 6)
B Region Type Name Pollutant
Stressor
Potential
Sources
TMDL
Completion
Date
Watershed
Acres
WLA
tons mi^ yr
1 R1.epa.EelR-
middle.mainSed.te
mp
R Middle Main Eel River and
Tributaries (from Dos Rios
to the South Fork)
Sedimentafion Roa d
Construction
2005-2006 521 mi^ 100
C Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres
WLA
tons mi^ yr
1
RI.epa.EelRsouth.
sed .temp
R South Fork Eel River Sedimentafion Road
Construcfion
12 1999 See chart 473
D Region Type Name Pollutant
Stressor
Potential
Sources
TMDL
Completion
Date
Watershed
Acres
WLA
tons mi^ yr
1
RI.epa.bigfinaltmd
1
R Big River Sedimentafion Road
Construcfion
12 2001 181 mi^
watershed
drainage
TMDL = loading
capacity = nonpoint
sources + background =
2009-0009-DWQ September 2, 2009
APPENDIX 4
3931 mi2 yr
E Region Type Name Pollutant stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres
WLA
tons mi^ yr
1 R1.epa.EelR-
lower.Sed.temp-
121807-signed
R Lower Eel River Sedimentafion Road
Construction
12 2007 300 square-
mile
watershed
898
F Region Type Name Pollutant stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres
WLA
tons mi^ yr
1 R1.epa.EelR-
middle.Sed.temp-
R Middle Fork Eel
River
Sedimentafion Road
Construction
12 2003 753 mi^
(approx.
482,000 acres)
82
G Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres Mi^
WLA
tons mi^ yr
1
RI.epa.EelRnorth-
Sed.temp.final-
121807-signed
R North Fork Eel
River
Sedimentafion Road
Construction
12 30 2002 289
(180,020
acres)
20
H Region Type Name Pollutant
Stressor
Potential
Sources
TMDL
Completion
Date
Watershed
Acres Mi^
WLA
tons mi^ yr
1 R1.epa.EelR-
upper.mainSed.te
mp-
R Upper Main Eel River
and Tributaries (including
Tomki Creek, Oufiet
Creek and Lake
Pillsbury)
Sedimentafion Road
Construction
12 29 2004 688
(approx.
440,384
acres)
14
2009-0009-DWQ September 2, 2009
APPENDIX 4
i Region Type Name Pollutant Stressor Potential Sources TMDL
Completion
Date
Watershed
Acres
WLA
tons mi^ yr
1
RI.epa.gualalafina
Itmdl
R Gualala River Sedimentafion Road Construction Not sure 300
(191,145
acres)
7
J Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA
tons mi^ yr
1 R1.epa.Mad-
sed.turbidity
R Mad River Sedimentafion Road
Construction
12 21 2007 480 174
K Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA
tons mi^ yr
1
R1.epa.mattole.se
diment
R Mattole River Sedimentafion Road
Construction
12 30 2003 296 27 or
520+27 = 547
L Region Type Name Pollutant
Stressor
Potential Sources TMDL
Completion
Date
Watershed Acres
•2
mi
WLA
tons mi^ yr
1
R1.epa.navarro.se
d.temp
R Navarro River Sedimentafion Road Construcfion Not sure 315(201,600
acres).
50
M Region Type Name Pollutant
Stressor
Potential
Sources
TMDL
Completion
Date
Watershed Acres
mi^
WLA
tons mi^ yr
1
R1.epa.noyo.sedi
ment
R Noyo River Sedimentafion Road
Construcfion
12 16 1999 113 (72,323 acres) 68 (three
areas
measured)
Table 16 in
the TMDL
2009-0009-DWQ September 2, 2009
APPENDIX 4
N Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA
tons mi^ yr
1
RI.epa.Redwoo
dCk.sed
Cr Redwood Creek Sedimentafion Road
Construction
12 30 1998 278 1900
Total allocafion
0 Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA - Roads
tons mi^ yr
1
RI.epa.tenmile.s
ed
R Ten Mile River Sedimentafion Road
Construction
2000 120 9
P Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA
management
tons mi^ yr
1
R1.epa.trinity.se
d
R Trinity River Sedimentafion Road
Construction
12 20 2001 2000 of
3000
covered in
this TMDL
See rows
below
Cr Horse Linto Creek Sedimentafion Road
Construction
12 20 2001 64 528
Cr Mill creek and Tish
Tang
Sedimentation Road
Construction
12 20 2001 39 210
Cr Willow Creek Sedimentation Road
Construction
12 20 2001 43 94
Cr Campbell Creek and
Supply Creek
Sedimentafion Road
Construction
12 20 2001 11 1961
Cr Lower Mainstem and
Coon Creek
Sedimentafion Road
Construction
12 20 2001 32 63
1 R Reference
Subwatershed ^
Sedimentafion Road
Construction
12 20 2001 434 24
1 Cr Canyon Creek Sedimentation Road 12 20 2001 64 326
2009-0009-DWQ 4 September 2,2009
APPENDIX 4
Construction
1 R Upper Tributaries^ Sed mentafion Road
Construction
12 20 2001 72 67
1 R Middle Tributaries^ Sec imentation Road
Construction
12 20 2001 54 53
1 R Lower Tributaries'* Sed mentation 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
Sedimentafion Road
Construction
12 20 2001 47 68
1 L Lewiston Lake Sedimentafion Road
Construction
12 20 2001 25 49
1 Cr Grassvalley Creek Sedimentafion Road
Construction
12 20 2001 37 44
1 Cr Indian Creek Sedimentafion Road
Construcfion
12 20 2001 34 81
1 Cr Reading and Browns
Creek
Sedimentafion Road
Construction
12 20 2001 104 66
1 Cr Reference
Subwatersheds^
Sedimentafion Road
Construction
12 20 2001 235 281
1 L, Cr Westside tributaries® S sdimentafion Road
Construction
12 20 2001 93 105
1 R, Cr,
G
Upper trinity*^ Sedimen afion Road
Construction
12 20 2001 161 690
1 R, Cr,
G
East Fork Tributaries® Sedimentafion Road
Construction
12 20 2001 115 65
1 R, L Eastside Tributaries^ S edimentafion Road
Construction
12 20 2001 89 60
1 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
2009-0009-DWQ September 2, 2009
APPENDIX 4
9 East Side Tributaries, Trinity Lake
Q Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA tons mi^
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 mi^
WLA tons mi^
1
R1.epa.vanduzen.sed
R, Cr Van Duzen
River and
Yager Creek
Sedimentafion Various 12 16 1999 429 1353 total
allocafion
1 Upper Basin Sedimentafion Road
Construction
7
1 Middle Basin Sedimentafion Road
Construction
22
1 Lower Basin Sedimentafion Road
Construction
20
S Region Type Name Pollutant Stressor Potential
Sources
TMDL
Completion
Date
Watershed
Acres mi^
WLA tons mi^
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 mi^
WLA tons mi
yr
6 R6.SquawCk.sed R Squaw Creek
(Placer
County)
Sedimentafion
/controllable sources
Various - basin
plan
amendment
4 13 2006 8.2 10,900
2009-0009-DWQ September 2, 2009
APPENDIX 4
Adopted TMDLs for Construction Sediment Sources
Region Type Name Pollutant Stressor Potential Sources TMDL
Completion
Date
Watershed
Area mi^
Waste load
Allocafion
tons mi^ yr
8 R Newport
Bay San
Diego
Creek
Watershed
Sedimentation Construcfion Land
Development
1999 2.24 (1432
acres)
125,000 tons
per
Year (no
more than
13,000 tons
per year
from
construcfion
sites)
2009-0009-DWQ September 2, 2009
APPENDIX 4
Appendix 4 Non Sediment TMDLs
Region 1 Lost River-DIN and CBOD
Region 1
Source: Cal Trans
Construction
TMDL Completion Date: 12
30 2008
TMDL Type: River, Lake
Watershed Area= 2996 mi^
Pollutant Stressors/WLA Region 1
Source: Cal Trans
Construction
TMDL Completion Date: 12
30 2008
TMDL Type: River, Lake
Watershed Area= 2996 mi^
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
Region 2
Source:Non-Urban
Stormwater Runoff
TMDL Type: Bay
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
2009-0009-DWQ September 2, 2009
APPENDIX 4
Region 4 Machado Lake Nutrients - Resolution No. 2008-006
(Effective Date - March 11. 2009)
General
Construction
Stormwater
Permit
WLAs
Years After
Effective
Date
Total
Phosphorus
(mg/L)
Total Nitrogen
(TKN + N03-N + N02-N)
(mg/L)
Interim WLAs^ At Effective
Date 1.25 3.50
Interim WLAs^ 5 years 1.25 2.45
Final WLAs^ 9.5 years 0.10 1.00
^ The compliance points for effecfive date interim WLAs are measured in the lake.
^ 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
Region 4
Source: NPDES
General Construcfion
TMDL Complefion
Date: 10 29 2008
TMDL Type: Creek
Region 4
Source: NPDES
General Construcfion
TMDL Complefion
Date: 10 29 2008
TMDL Type: Creek
Copper (Cu) Lead (Pb) Selenium (Se) Zinc (Zn)
Region 4
Source: NPDES
General Construcfion
TMDL Complefion
Date: 10 29 2008
TMDL Type: Creek g/day g/day/a :re g/day g/day/a :re g/day g/day/a :re g/day g/day/a ere
Ballona Creek 4.94E-07 X
Daily storm
volume (L)
2.20E-10X
Daily storm
volume (L)
1.62E-06X
Daily storm
volume (L)
7.20E-10X
Daily storm
volume (L)
1.37E-07X
Daily storm
volume (L)
6.10E-11 X
Daily storm
volume (L)
3.27E-06 X
Daily storm
volume (L)
1.45E-09X
Daily storm
volume (L)
2009-0009-DWQ September 2, 2009
APPENDIX 4
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 allocafions assigned to construcfion storm
water permittees.
• Regional Board staff will bring the recommended BMPs before the Regional Board for consideration within eight years ofthe
effective date of the TMDL.
• General construcfion storm water permittees will be considered in compliance with final waste load allocafions if they
implement these Regional Board approved BMPs. All permittees must implement the approved BMPs within nine years ofthe
effective date of the TMDL. If no effectiveness studies are conducted and no BMPs are approved by the Regional Board within
eight years ofthe effecfive date ofthe 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 allocafions.
Dry-weather WLAs
A waste load allocation of zero is assigned to all general construcfion 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 allocafion equal to zero as
long as they comply with the provisions of sections C.3 and A.9 ofthe 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.
2009-0009-DWQ 3 September 2,2009
APPENDIX 4
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 •"x
Daily storm
volume (L)
7.6x10"'^ X
Daily storm
volume (L)
3.2x10"^" X
Daily storm
volume (L)
4.2x10"" X
Daily storm
volume (L)
1.2x10-^x
Daily storm
volume (L)
1.5x10"'° x
Daily storm
volume (L)
3.01xl6"'x
Daily storm
volume (L)
3.9x10"'° 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 ofthe
effective date ofthe TMDL.
• General construcfion 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 ofthe
effective date ofthe 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 allocafions.
Dry-weather WLAs
A waste load allocation of zero is assigned to all general construcfion 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 allocafion equal to zero as
2009-0009-DWQ September 2, 2009
APPENDIX 4
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 violafion 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 allocafions are applied to receiving water.
A. Interim Limits
Constituents
Calleguas and Cone 0 Creek Revolon Slough
Constituents 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 19 204
Nickel 15 13 (a) 15 13 (a)
Selenium (b) (b) (b) 14 13 (a)
(a) The current loads do not exceed the TMDL under w/et 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
2009-0009-DWQ September 2, 2009
APPENDIX 4
Flow
Range
Calleguas and Conejo Creek Revolon Slough Flow
Range Low Flow Average
Flow
Elevated
Flow Low Flow Average
Flow
Elevated
Flow
CoppeM
(lbs/day)
0.04*WER
0.02
0.12*WER
0.02
0.18*WER
0.03
0.03*WER
-0.01
0.06*WER
-0.03
0.13*WER
0.02
Nickel
(lbs/day) 0.100 0.120 0.440 0.050 0.069 0.116
Selenium
(lbs/day) (a) (a) (a) 0.004 0.003 0.004
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 allocafions have not been developed for this reach as it is not on the 303(d) list.
Wet-Weather WLAs in Water Column
Constituent Calleguas Creek Revolon Slough
Copper^
(Ibs/dav)
(0.00054*0^^2*0.032*0 - 0.17)*WER -
0.06 (0.0002*O2+0.0005*O)*WER
Nickel^
(lbs/day) 0.014*O'^2+0.82*O 0.027*O''2+0.47*O
Selenium^
(lbs/day) (a) 0.027*0^^2+0.47*0
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 equafions set forth above. Regardless of the final WERs, total copper loading shall not exceed current
loading.
^ 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.
0: Daily storm volume.
Interim Limits and Final WLAs for Mercury in Suspended Sediment
2009-0009-DWQ September 2, 2009
APPENDIX 4
Flow Range
Calleguas Creek Revolon Slough
Flow Range Interim
(Ibs/yr)
Final
(Ibs/yr)
Interim
(Ibs/yr)
Final
(Ibs/yr)
0-15,000 MGY 3.3 0.4 1.7 0.1
15,000-25,000 MGY 10.5 1.6 4 0.7
Above 25,000 MGY 64.6 9.3 10.2 1.8
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 Stafion Point Mugu. Dischargers will have a required 25%, 50% and 100% reducfion in the
difference between the current loadings and the load allocafions at 5, 10 and 15 years after the effective date, respectively.
Achievement of required reductions will be evaluated based on progress towards BMP implementafion as oufiined in the urban
water quality management plans (UWQMPs). Ifthe interim reducfions are not met, the dischargers will submit a report to the
Execufive 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
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
Pollutant Stressor WLA Daily Max (pg/L) WLA Monthly Ave (pg/L) Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
Chlordane 1.2 0.59
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek 4,4-DDD 1.7 0.84
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
4,4-DDE 1.2 0.59
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
4,4-DDT 1.2 0.59
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
Dieldrin 0.28 0.14
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
PCB's 0.34 0.17
Region 4 Calleguas Creek
Source: Minor NPDES point sources/WDRs
TMDL Complefion Date: 3 24 2006
TMDLType:Creek
Toxaphene 0.33 0.16
2009-0009-DWQ September 2, 2009
APPENDIX 4
Region 4 Calleguas Creek-Calleguas Creek Toxicicity (Resolution 2005-009)
Effective Date - March 24, 2006
Minor sources include NPDES permittees otherthan 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. Addifionally, 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
Complefion 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 289 7 12
Las Posas 0.13 157 887 261 N A
Conejo 1.26 1576 8931 262 7 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)
2009-0009-DWQ September 2, 2009
APPENDIX 4
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 allocafions 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 precipitafion in the
previous 24 hours.
• Because wet weather flows transport a large mass of salts at low concentrations, these dischargers meet water quality
objecfives during wet weather. No wet weather allocafions are assigned.
Ballona Creek Toxic Pollutants (Resolution No. 2005-008)
Effective Date - Januarv 11. 2006
Each storm water permittee enrolled under the general construcfion or industrial storm water permits will receive an individual
waste load allocafion 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/vr/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/vr/ac)
Chlordane DDTs Total PCBs Total PAHs
0.04 0.14 350
Waste load allocafions will be incorporated into the State Board general permit upon renewal or into a watershed spec ifie general
construcfion storm water permit developed by the Regional Board.
Within seven years ofthe effective date ofthe TMDL, the construcfion industry will submit the results of BMP effectiveness studies
to determine BMPs that will achieve compliance with the waste load allocafions assigned to construction storm water permittees.
Regional Board staff will bring the recommended BMPs before the Regional Board for consideration within eight years ofthe
2009-0009-DWQ September 2, 2009
APPENDIX 4
effective date ofthe TMDL. General construcfion 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 ofthe 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 Rev 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 allocafion 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/vr/ac)
Copper Lead Zinc
2.3 3.1 10
Organics per acre WLAs for Individual General Construction or Industrial Storm Water Permittees (mg/vr/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 ifie general
construction storm water permit developed by the Regional Board.
Within seven years ofthe effective date ofthe TMDL, the construcfion industry will submit the results of BMP effectiveness studies
to determine BMPs that will achieve compliance with the waste load allocations assigned to construcfion storm water permittees.
Regional Board staff will bring the recommended BMPs before the Regional Board for considerafion within eight years ofthe
effective date ofthe TMDL. General construcfion 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 ofthe effective date of
2009-0009-DWQ 10 September 2,2009
APPENDIX 4
the TMDL, each general construcfion 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
8 *Mass-based allocations are based on a flow of 260 cfs (daily storm volume = 6.4 xlO liters)
8
*Mass-based allocations are based on a flow of 156 cfs (daily storm volume = 3.8 xlO 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 allocafion for general construction storm water permittees that discharge to San Jose Creek Reach 1 and Reach 2
is 5 pg/L (total recoverable metals).
Region 4 Upper Santa Clara River Chloride TMDL Adopted bv 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":
2009-0009-DWQ 11 September 2, 2009
APPENDIX 4
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 condifional 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,
VVLAs shall be based on existing water quality objectives for chloride of 100 mg/L.
Region 4 The Harbor Beaches of Ventura County-Bacteria (Adopted bv Resolution No. 2007-017)
Effective Date - December 18, 2008
Current and future enrollees in the Statewide Construcfion Activity Storm Water General Permit in the Channel Islands Harbor
subwatershed are assigned WLAs of zero (0) days of allowable exceedances ofthe 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.
2009-0009-DWQ 12 September 2,2009
APPENDIX 4
Los Angeles Harbor Bacteria TMDL (Adopted bv 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 ofthe 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, ifthe rafio 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 bv Resolution No. 2006-011)
Effective Date - April 27, 2007
Current and future enrollees in the Statewide Construcfion Activity Storm Water General Permit in the watershed are assigned
WLAs of zero (0) days of allowable exceedances ofthe 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 rafio 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.
2009-0009-DWQ 13 September 2, 2009
APPENDIX 4
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)
Region 4
Minor Point Sources for
NPDESA/VDR Permits
TMDL Effective Date: 3 23
2004
TMDL Type: River
Pollutant Stressor/WLA Region 4
Minor Point Sources for
NPDESA/VDR Permits
TMDL Effective Date: 3 23
2004
TMDL Type: River
Total Ammonia (NH3) N itrate-n itrogen N itrite-n itrogen
(NO3-N) (NO2-N)
NO3-N + NO3-N
Region 4
Minor Point Sources for
NPDESA/VDR Permits
TMDL Effective Date: 3 23
2004
TMDL Type: River
1 HrAve
mg/1
30 Day Ave
mg/1
30 Day Ave mg/1 30 Day Ave mg/1
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
Malibu Creek Attachment A to Resolution No. 2004-019R-Bacteria
Effecfive date: 1 24 2006. The WLAs for permittees underthe 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, ifthe rafio 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.
2009-0009-DWQ 14 September 2, 2009
APPENDIX 4
Region 4 Marina del Rev Harbor. Mothers' Beach and Back Basins
Attachment A to Resolution No. 2003-012-Bacteria
Effective date: 3 18 2004. Discharges from general construcfion 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, ifthe rafio 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 bv Resolution No. 2003-011
Effective Date - March 23. 2004
Concentrafion-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.
2009-0009-DWQ 15 September 2,2009
APPENDIX 4
Region 8 RESOLUTION NO. R8-2007- 0024
Total Maximum Daily Loads (TMDLs) for San Diego Creek,
Upper and Lower Newport Bay, Orange County, California
Region 8
NPDES Construction Permit
TMDL Complefion Date: 1 24 1995
TMDL Type: River. Cr, Bay
Organochlorine Compounds Region 8
NPDES Construction Permit
TMDL Complefion Date: 1 24 1995
TMDL Type: River. Cr, Bay
Total DDT Chlordane Total PCBs Toxaphene
Region 8
NPDES Construction Permit
TMDL Complefion Date: 1 24 1995
TMDL Type: River. Cr, Bay g/day gl g/day g/yr g/day gl /r 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 .1 '60.7 X X
*Red= Informafional 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 expectattons with respect
to the content of SWPPPs, including documentafion regarding the selection and implementation of BMPs, and a sampling and
analysis plan. The Improvement Program shall include specific guidance regarding the development and implementafion 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 complefion
ofthe Improvement Program, Board staff shall assure that the requirements ofthe Program are communicated to interested
parties, including dischargers with exisfing authorizations underthe General Construction Permit. Exisfing, 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 ofthe 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 Condifions of Approval.
2009-0009-DWQ 16 September 2, 2009
APPENDIX 5
APPENDIX 5:
Glossary
Active Areas of Construction
All areas subject to land surface disturbance activifies related to the project
including, but not limited to, project staging areas, immediate access areas and
storage areas. All previously active areas are sfill considered active areas until
final stabilizafion is complete. [The construcfion acfivity Phases used in this
General Permit are the Preliminary Phase, Grading and Land Development
Phase, Streets and Ufilifies Phase, and the Vertical Construcfion Phase.]
Active Treatment System (ATS)
A treatment system that employs chemical coagulafion, chemical fiocculafion, or
electrocoagulafion to aid in the reducfion of turbidity caused by fine suspended
sediment.
Acute Toxicity Test
A chemical sfimulus severe enough to rapidly induce a negafive effect; in aquafic
toxicity tests, an effect observed within 96 hours or less is considered acute.
Air Deposition
Airborne particulates from construction acfivifies.
Approved Signatory
A person who has been authorized by the Legally Responsible Person to sign,
certify, and electronically submit Permit Registrafion Documents, Nofices of
Terminafion, and any other documents, reports, or informafion 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 corporafion or limited liability company: a responsible corporate officer.
For the purpose of this secfion, a responsible corporate officer means: (a) a
president, secretary, treasurer, or vice-president of the corporation in charge
of a principal business funcfion, or any other person who performs similar
policy or decision-making funcfions for the corporafion or limited liability
company; or (b) the manager ofthe 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,
respecfively;
3. For a municipality. State, Federal, or other public agency: a principal
execufive officer, ranking elected official, city manager, council president, or
any other authorized public employee with managerial responsibility over the
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1
APPENDIX 5
construcfion 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, acfing
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 enfity not listed above (e.g. trusts, estates, receivers): an
authorized person with managerial authority over the construcfion 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 degradafion include, but are not limited to,
domesfic, municipal, agricultural and industrial supply; power generation;
recreafion; aesthefic enjoyment; navigafion; and preservafion and enhancement
offish, wildlife, and other aquafic 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 nafional
basis for controlling the direct discharge of toxic and nonconvenfional pollutants
to navigable waters. The BAT effluent limitafions guidelines, in general,
represent the best exisfing 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 exisfing industrial point sources of convenfional 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
condifions on a case-by-case basis using all reasonably available and relevant
data.
Best Management Practices (BMPs)
BMPs are scheduling of acfivifies, prohibifions of pracfices, maintenance
procedures, and other management practices to prevent or reduce the discharge
of pollutants. BMPs also include treatment requirements, operafing procedures,
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APPENDIX 5
and pracfices 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 collecfion
to the analytical laboratory. The COC is then used to track the resulfing
analyfical 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 setfie out impurifies, often induced by
chemicals such as lime, alum, and iron salts.
Common Plan of Development
Generally a configuous area where mulfiple, disfinct construcfion acfivifies may
be taking place at different fimes under one plan. A plan is generally defined as
any piece of documentafion or physical demarcafion that indicates that
construcfion acfivifies may occur on a common plot. Such documentafion could
consist of a tract map, parcel map, demolifion 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 idenfify 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
limitafions expressed in units of mass, the daily discharge is calculated as the
total mass ofthe pollutant discharged during the day. For pollutants with
limitafions expressed in other units of measurement (e.g., concentrafion) 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 direcfiy 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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3
APPENDIX 5
Discharger
The Legally Responsible Person (see definition) or enfity subject to this General
Permit.
Dose Rate (for ATS)
In exposure assessment, dose (e.g. of a chemical) per fime unit (e.g. mg/day),
somefimes also called dosage.
Drainage Area
The area of land that drains water, sediment, pollutants, and dissolved materials
to a common oufiet.
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 narrafive restricfion imposed on quanfifies, discharge rates, and
concentrafions of pollutants which are discharged from point sources into waters
of the United States, the waters of the configuous zone, or the ocean.
Erosion
The process, by which soil particles are detached and transported by the acfions
of wind, water, or gravity.
Erosion Control BMPs
Vegetation, such as grasses and wildflowers, and other materials, such as straw,
fiber, stabilizing emulsion, protecfive blankets, etc., placed to stabilize areas of
disturbed soils, reduce loss of soil due to the acfion of water or wind, and prevent
water pollufion.
Field Measurements
Tesfing procedures performed in the field with portable field-testing kits or
meters.
Final Stabilization
All soil disturbing acfivifies 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
floes.
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4
APPENDIX 5
Good Housekeeping BMPs
BMPs designed to reduce or eliminate the addition of pollutants to construcfion
site runoff through analysis of pollutant sources, implementafion of proper
handling/disposal pracfices, employee educafion, and other acfions.
Grading Phase (part ofthe 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 operafions.
Hydromodification
Hydromodification is the alteration of the hydrologic characterisfics of coastal and
non-coastal waters, which in turn could cause degradafion of water resources.
Hydromodificafion can cause excessive erosion and/or sedimentafion rates,
causing excessive turbidity, channel aggradafion and/or degradafion.
Identified Organisms
Organisms within a sub-sample that is specifically identified and counted.
Inactive Areas of Construction
Areas of construction acfivity that are not acfive and those that have been active
and are not scheduled to be re-disturbed for at least 14 days.
Index Period
The period of fime during which bioassessment samples must be collected to
produce results suitable for assessing the biological integrity of streams and
rivers. Instream communifies naturally vary over the course of a year,and
sampling during the index period ensures that samples are collected during a
fime 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 essenfial to know the index
period for your area.
K Factor
The soil erodibility factor used in the Revised Universal Soil Loss Equafion
(RUSLE). It represents the combinafion of detachability of the soil, runoff
potenfial ofthe soil, and the transportability ofthe sediment eroded from the soil.
Legally Responsible Person
The Legally Responsible Person (LRP) will typically be the project proponent.
The categories of persons or entifies that are eligible to serve as the LRP are set
forth below. For any construcfion or land disturbance project where mulfiple
persons or enfifies are eligible to serve as the LRP, those persons or enfifies
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APPENDIX 5
shall select a single LRP. In excepfional circumstances, a person or entity that
qualifies as the LRP may provide written authorization to another person or enfity
to serve as the LRP. In such a circumstance, the person or enfity that provides
the authorizafion retains all responsibility for compliance with the General Permit.
Except as provided in category 2(d), a contractor who does not safisfy the
requirements of any ofthe categories below is not qualified to be an LRP.
The following persons or enfifies may serve as an LRP:
1. A person, company, agency, or other enfity 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 construcfion or
land disturbance acfivifies will occur for the regulated site.
2. In addifion to the above, the following persons or entifies may also serve as
an LRP:
a. For linear underground/overhead projects, the ufility 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 enfity, the person who has day-
to-day control over the land (including, but not limited to, a bankruptcy
trustee, receiver, or conservator);
c. For pollufion investigafion and remediafion projects, any potenfially
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 authorizafion 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 Facilifies Compliance
Act.
Likely Precipitation Event
Any weather pattern that is forecasted to have a 50% or greater chance of
producing precipitafion in the project area. The discharger shall obtain likely
precipitation forecast information from the Nafional Weather Service Forecast
Office (e.g., by entering the zip code ofthe project's locafion at
http://vwvw.srh.noaa.gov/forecast).
Maximum Allowable Threshold Concentration (MATC)
The allowable concentrafion of residual, or dissolved, coagulant/flocculant in
effluent. The MATC shall be coagulant/flocculant-specific, and based on toxicity
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APPENDIX 5
tesfing 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 sensifive species determined for the specific
coagulant. The most sensifive 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 sedimenL Channels
have been observed to pass through 5 to 9 evolufion types. Once they pass
though the suite of evolufion 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 tesfing water.
Non-Visible Pollutants
Pollutants associated with a specific site or activity that can have a negafive
impact on water quality, but cannot be seen though observafion (ex: chlorine).
Such pollutants being discharged are not authorized.
Numeric Action Level (NAL)
Level is used as a warning to evaluate if best management pracfices are
effective and take necessary correcfive acfions. Not an effluent limit.
Original Sample Material
The material (i.e., macroinvertebrates, organic material, gravel, etc.) remaining
after the subsample has been removed for identificafion.
pH
Unit universally used to express the intensity of the acid or alkaline condifion 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 aquafic
systems.
Post-Construction BMPs
Structural and non-structural controls which detain, retain, or filter the release of
pollutants to receiving waters after final stabilizafion is attained.
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APPENDIX 5
Preliminary Phase (Pre-Construction Phase - Part of the Grading and Land
Development Phase)
Construcfion stage including rough grading and/or disking, clearing and grubbing
operafions, 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
observafions, sampling and analysis, and responsibility to ensure full compliance
with the permit and implementafion of all elements of the SWPPP, including the
preparafion of the annual compliance evaluafion and the eliminafion of all
unauthorized discharges.
Qualifying Rain Event
Any event that produces 0.5 inches or more precipitafion 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 locafion. 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
precipitafion 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 idenfification.
(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
Acfivifies intended to maintain the original line and grade, hydraulic capacity, or
original purpose of a facility.
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8
APPENDIX 5
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
condifions, where and when the samples will be collected, what the sample will
be tested for, what test methods and detecfion limits will be used, and what
methods/procedures will be maintained to ensure the integrity of the sample
during collecfion, storage, shipping and tesfing (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 deposifion 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
Pracfices 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 setfie and be trapped (e.g., silt fence,
sediment basin, fiber rolls, etc.).
Settleable Solids (SS)
Solid material that can be setfied within a water column during a specified fime
frame. It is typically tested by placing a water sample into an Imhoff setfiing cone
and then allowing the solids to setfie by gravity for a given length of fime.
Results are reported either as a volume (mL/L) or a mass (mg/L) concentrafion.
Sheet Fiow
Flow of water that occurs overiand 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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APPENDIX 5
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
Construcfion stage including excavation and street paving, lot grading, curbs,
gutters and sidewalks, public ufilifies, public water facilifies including fire
hydrants, public sanitary sewer systems, storm sewer system and/or other
drainage improvements.
Structural Controls
Any structural facility designed and constructed to mifigate the adverse impacts
of storm water and urban runoff pollufion
Suspended Sediment Concentration (SSC)
The measure of the concentrafion 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,
aquafic plant/animal waste, particles related to industrial/sewage waste, etc. The
TSS test measures the concentrafion 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 reproducfion 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 foundafions to roofing, including rough
landscaping.
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10
APPENDIX 5
Waters of the United States
Generally refers to surface waters, as defined by the federal Environmental
Protecfion Agency in 40 C.F.R. § 122.2.^
Water Quality Objectives (WQO)
Water quality objecfives are defined in the California Water Code as limits or
levels of water quality constituents or characterisfics, which are established for
the reasonable protection of beneficial uses of water or the prevenfion of
nuisance within a specific area.
^ The application ofthe definition of "waters ofthe 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.
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
11
APPENDIX 6
APPENDIX 6:
Acronym List
ASBS Areas of Special Biological Significance
ASTM American Society of Tesfing and Materials; Standard Test
Method for Particle-Size Analysis of Soils
ATS Active Treatment System
BASMAA Bay Area Storm water Management Agencies Associafion
BAT Best Available Technology Economically Achievable
BCT Best Conventional Pollutant Control Technology
BMP Best Management Pracfices
BOD Biochemical Oxygen Demand
BPJ Best Professional Judgment
CAFO Confined Animal Feeding Operafion
CCR California Code of Regulafions
CEQA California Environmental Quality Act
CFR Code of Federal Regulafions
CGP NPDES General Permit for Storm Water Discharges
Associated with Construction Acfivifies
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 Construcfion Site Monitoring Program
CTB Cement Treated Base
CTR California Toxics Rule
CWA Clean Water Act
owe 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 Accreditafion Program
EPA Environmental Protection Agency
ESA Environmentally Sensifive Area
ESC Erosion and Sediment Control
HSPF Hydrologic Simulafion Program Fortran
JTU Jackson Turbidity Units
LID Low Impact Development
LOEC Lowest Observed Effect Concentrafion
LRP Legally Responsible Person
LUP Linear Underground/Overhead Projects
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
1
APPENDIX 6
MATC Maximum Allowable Threshold Concentrafion
MDL Method Detecfion Limits
MRR Monitoring and Reporting Requirements
MS4 Municipal Separate Storm Sewer System
MUSLE Modified Universal Soil Loss Equafion
NAL Numeric Acfion Level
NEL Numeric Effluent Limitafion
NICET Nafional Institute for Certificafion in Engineering
Technologies
NOAA Nafional Oceanic and Atmospheric Administration
NOEC No Observed Effect Concentration
NOI Notice of Intent
NOT Nofice of Termination
NPDES Nafional Pollutant Discharge Eliminafion System
NRCS Natural Resources Conservation Service
NTR Nafional Toxics Rule
NTU Nephelometric Turbidity Units
O&M Operafion and Maintenance
PAC Polyaluminum chloride
PAM Poiyacrylamide
PASS Polyaluminum chloride Silica/sulfate
POC Pollutants of Concern
PoP Probability of Precipitafion
POTW Publicly Owned Treatment Works
PRDs Permit Registrafion 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 Equafion
RW Receiving Water
SMARTS Storm water Multi Applicafion Reporting and Tracking
System
SS Setfieable Solids
SSC Suspended Sediment Concentrafion
SUSMP Standard Urban Storm Water Mifigafion 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 Pollufion Prevenfion 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
APPENDIX 6
TMDL Total Maximum Daily Load
TSS Total Suspended Solids
USACOE U.S. Army Corps of Engineers
USC United States Code
USEPA United States Environmental Protecfion Agency
USGS United States Geological Survey
WDID Waste Discharge Identification Number
WDR Waste Discharge Requirements
WLA Waste Load Allocafion
WET Whole Effluent Toxicity
WRCC Western Regional Climate Center
WQBEL Water Quality Based Effluent Limitafion
WQO Water Quality Objective
WQS Water Quality Standard
2009-0009-DWQ as amended by 2010-0014-DWQ September 2, 2009 as modified on November 16, 2010
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
SAN FRANCISCO 6AY REGION (2)
1515 Clay Street, Ste. 1400
Oakland, CA 94612
(510) 622-2300 FAX: (510) 622-2640
CENTRAL COAST REGION (3)
895 Aerovista Place, Ste 101
San Luis Obispo, CA 93401
(805) 549-3147 FAX: (805) 543-0397
LOS ANGELES REGION (4)
320 W. 4" Street, Ste. 200
Los Angeles, CA 90013
(213) 576-6600 FAX: (213) 576-6640
LAHONTAN REGION (6 SLT)
2501 Lake Tahoe Blvd.
South Lake Tahoe, CA 96150
(530) 542-5400 FAX: (530) 544-2271
VICTORVILLE OFFICE (SV)
14440 Civic Drive, Ste. 200
Victorville, CA 92392-2383
(760) 241-6583 FAX: (760) 241-7308
CENTRAL VALLEY REGION (58)
11020 Sun Center Dr., #200
Rancho Cordova, CA 95670-6114
(916) 464-3291 FAX: (916) 464-4645
FRESNO BRANCH OFFICE (5F)
1685 E St.
Fresno, CA 93706
(559) 445-5116 FAX: (559) 445-5910
REDDING BRANCH OFFICE (5R)
415 Knollcrest Drive, Ste. 100
Redding, CA 96002
(530) 224-4845 FAX: (530) 224-4857
COLORADO RIVER BASIN REGION (7)
73-720 Fred Waring Dr., Ste. 100
Palm Desert, CA 92260
(760) 346-7491 FAX: (760) 341-6820
SANTA ANA REGION (8)
3737 Main Street, Ste. 500
Riverside, CA 92501-3339
Phone (951) 782-4130 FAX: (951) 781-6288
SAN DIEGO REGION (9)
9174 Sky Park Court, Ste. 100
San Dlego, 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
APPENDIX B
EXHIBITS
Bl
VICINITY MAP
LA COSTA VALLEY SITE IMPROVEMENTS
CARLSBAD, CA
RISK LEVEL 2 PROJECT
VICINITY MAP
CITY OF OCEANSIDE
HIGHWAY_L,^
VISTA
CITY OF
SAN MARCOS
PACIFIC
OCEAN
CITY OF ENCINITAS
^i^PpOJECr STTE
APPENDIX Bl
VICINITY MAP
La Costa Valley Site Imp.
Carlsbad, CA
FEBRUARY 2014
B2
SWPPP EXHIBITS
DESCRIPTIONDATETHIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO MVE INSTITUTIONAL,INC. AND IS FURNISHED IN CONFIDENCE FOR THE LIMITED PURPOSE OFEVALUATION, BIDDING OR REVIEW. THIS DOCUMENT OR ITS CONTENTS MAY NOTBE USED FOR ANY OTHER PURPOSE AND MAY NOT BE REPRODUCED ORDISCLOSED TO OTHERS WITHOUT THE PRIOR WRITTEN CONSENT OF MVE,167,787,21$/,1&$//5,*+765(6(59('&23<5,*+7JOB NO.DATESCALEREVISIONSSHEET TITLEAPPENDIX6390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.com2013-40117DSA SUBMITTAL
SAN DIEGUITO UNION
HIGH SCHOOL DISTRICT
LA COSTA VALLEY SCHOOL
SITE DEVELOPMENT
CALLE BARCELONA, CARLSBAD, CA1-14-2014B2GRAVEL BAG CHECK DAMSILT FENCEFIBER ROLLSGRAVEL BAG BERMSTABILIZED CONSTRUCTION ENTRANCESWPPPWALL MAP
B3
EROSION CONTROL PLAN, DEMOLITION PiAH &
EXCAVATION PL^N (AS APPROPRIATE)
DESCRIPTIONDATETHIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO MVE INSTITUTIONAL,INC. AND IS FURNISHED IN CONFIDENCE FOR THE LIMITED PURPOSE OFEVALUATION, BIDDING OR REVIEW. THIS DOCUMENT OR ITS CONTENTS MAY NOTBE USED FOR ANY OTHER PURPOSE AND MAY NOT BE REPRODUCED ORDISCLOSED TO OTHERS WITHOUT THE PRIOR WRITTEN CONSENT OF MVE,167,787,21$/,1&$//5,*+765(6(59('&23<5,*+7JOB NO.DATESCALEREVISIONSSHEET TITLEAPPENDIX6390 Greenwich Drive, Suite 170San Diego, California 92122tel 858.554.1500 fax 858.597.0335www.fuscoe.com2013-40117DSA SUBMITTAL
SAN DIEGUITO UNION
HIGH SCHOOL DISTRICT
LA COSTA VALLEY SCHOOL
SITE DEVELOPMENT
CALLE BARCELONA, CARLSBAD, CA7-08-2014B3GRAVEL BAG CHECK DAMSILT FENCEFIBER ROLLSGRAVEL BAG BERMSTABILIZED CONSTRUCTION ENTRANCEEROSIONCONTROLPLAN
B4
SAMPLING LOCATIONS PL^N
DESCRIPTION DATE
THIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO MVE INSTITUTIONAL,
INC. AND IS FURNISHED IN CONFIDENCE FOR THE LIMITED PURPOSE OF
EVALUATION, BIDDING OR REVIEW. THIS DOCUMENT OR ITS CONTENTS MAY NOT
BE USED FOR ANY OTHER PURPOSE AND MAY NOT BE REPRODUCED OR
DISCLOSED TO OTHERS WITHOUT THE PRIOR WRITTEN CONSENT OF MVE
,167,787,21$/,1&$//5,*+765(6(59('&23<5,*+7
JOB NO.
DATE
SCALE
REVISIONS
SHEET TITLE
APPENDIX
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
2013-40117
DSA SUBMITTALSAN DIEGUITO UNIONHIGH SCHOOL DISTRICTLA COSTA VALLEY SCHOOLSITE DEVELOPMENTCALLE BARCELONA, CARLSBAD, CA1-14-2014B4
SAMPLING
LOCATIONS
PLAN
B5
POST-CONSTRUCTION (WQMP) PL\N
9E1E
1
2
4W1W
65
43
87
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6
SHEET 1 OF 1
LA COSTA VALLEY SCHOOL SITE DEVELOPMENT
CALLE BARCELONA, CARLSBAD, CA
STORM WATER MANAGEMENT PLAN
BMP / WATER QUALITY EXHIBIT
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
FT
PP
PC
POC
#
B6
HYDROLOGY MAPS
SHEET 1 OF 2
LA COSTA VALLEY SCHOOL SITE DEVELOPMENT
CALLE BARCELONA, CARLSBAD, CA
STORM WATER MANAGEMENT PLAN
MANAGEMENT EXHIBIT
6390 Greenwich Drive, Suite 170
San Diego, California 92122
tel 858.554.1500 fax 858.597.0335
www.fuscoe.com
PRE-DEVELOPMENT HYDROMODIFICATION
POC
#