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Storm Water Pollution
Prevention Plan
South Carlsbad Village Storm Drain
and Vista/Carlsbad Interceptor Sewer
Phase VC10 and VC11A
Project No. 3528
Prepared for:
Carlsbad Municipal Water District
City of Carlsbad
2075 Las Pal mas Drive
Carlsbad, CA 92009
Prepared by:
c Earth Techo+= 9675 Business Park Avenue
i San Diego, CA 92131
D.
CO
I
c Job No.: 24694.10o•js(01
August 30, 1999
Storm Water Pollution Prevention
Plan
South Carlsbad Village Storm Drain
and Vista/Carlsbad Interceptor Sewer
Phase VC10 and VC11A
Project No. 3528
Prepared for:
Carlsbad Municipal Water District
City of Carlsbad
2075 Las Palmas Drive
Carlsbad, CA 92009
Prepared by:
Earth Tech
9675 Business Park Avenue
San Diego, CA 92131
Job No.: 24694.10
August 30, 1999
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TABLE OF CONTENTS
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TABLE OF CONTENTS
Owner Certification v
Engineer Statement v
Revision Log vi
1. INTRODUCTION
1.1 BACKGROUND 1-1
1.2 GENERAL PERMIT 1-1
1.3 REGULATED ACTIVITIES 1-2
1.4 NOTIFICATION 1-3
2. HOW TO USE THIS DOCUMENT
2.1 GOALS OF SWPPP 2-1
2.2 RESPONSIBILITIES 2-2
2.3 ORGANIZATION OF SWPPP 2-3
2.4 ACCESS TO THE SWPPP 2-4
2.5 MODIFICATION OF SWPPP , 2-4
3. SITE DESCRIPTION
3.1 SITE LOCATION 3-1
3.2 SITE AREA 3-1
3.3 SITE TOPOGRAPHY 3-1
3.4 DRAINAGE PATTERNS 3-1
3.5 TYPES OF STORM 3-3
3.6 VEGETATION COVER 3-3
3.7 SURROUNDING AREA 3-4
3.8 SOILS 3-4
3.9 RUNOFF COEFFICIENT 3-6
4. PROPOSED CONSTRUCTION
4.1 GENERAL 4-1
4.2 GRADING 4-2
4.3 PAVING 4-3
4.4 DRAINAGE 4-3
4.5 RUNOFF COEFFICIENT 4-3
4.6 CONSTRUCTION SCHEDULE 4-3
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Table of Contents
Page
5. POLLUTANT SOURCE IDENTIFICATION
5.1 HISTORICAL POLLUTANTS 5-1
5.2 POSSIBLE POLLUTANTS (DURING CONSTRUCTION) 5-1
5.3 POSSIBLE POLLUTANTS (POST CONSTRUCTION) 5-3
5.4 NON-STORM WATER DISCHARGE 5-5
6. BEST MANAGEMENT PRACTICES (DURING CONSTRUCTION)
6.1 BMP OBJECTIVES 6-1
6.1.1 Practice Good Housekeeping 6-1
6.1.2 Contain Waste 6-1
6.1.3 Stabilize Disturbed Area 6-1
6.1.4 Control Site Perimeter 6-1
6.1.5 Control Internal Erosion 6-1
6.2 CONTRACTOR ACTIVITIES 6-2
6.2.1 Material Delivery and Storage 6-2
6.2.2 Solid Waste Management 6-2
6.2.3 Hazardous Waste Management 6-3
6.2.4 Concrete Waste Management : 6-3
6.2.5 Vehicle and Equipment Cleaning 6-3
6.3 EROSION AND SEDIMENTATION CONTROL 6-4
6.3.1 Scheduling 6-4
6.3.2 Seeding and Planting 6-4
6.3.3 Dust Control 6-4
6.3.4 Stabilized Construction Entrance 6-4
6.3.5 Silt Fence 6-7
6.3.6 Straw Bale Barrier 6-7
6.3.7 Sand Bag Barrier 6-7
6.3.8 Storm Drain Protection 6-7
7. BEST MANAGEMENT PRACTICES (POST CONSTRUCTION)
7.1 SOURCE CONTROLS '. 7-1
7.1.1 Maintenance and Repair 7-1
7.1.2 Inspection Procedures 7-1
7.1.3 Training Program 7-1
7.2 TREATMENT CONTROLS 7-2
7.3 OTHER ORDINANCES 7-2
7.3.1 City Grading Ordinance 7-2
7.3.2 Municipal NPDES Permit 7-2
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Table of Contents
Page
8. MONITORING AND REPORTING PROGRAM PLANS
8.1 TRAINING 8-1
8.2 MONITORING REQUIREMENTS 8-1
8.2.1 Content 8-1
8.2.2 Frequency 8-2
8.3 REPORTING REQUIREMENTS 8-2
8.3.1 Site in Compliance 8-2
8.3.2 Site in Noncompliance 8-2
8.3.3 Anticipated Noncompliance 8-3
8.3.4 Certification 8-3
8.4 RECORD RETENTION 8-3
8.5 COMPLETION OF CONSTRUCTION ACTIVITY 8-3
9. REPORTING AND RECORDKEEPING FORMS
9.1 COMPLIANCE CERTIFICATION 9-1
9.2 NOTICE OF COMPLETION OF CONSTRUCTION ACTIVITY 9-1
9.3 NOTICE OF ANTICIPATED NONCOMPLIANCE 9-1
APPENDICES
A Notice of Intent
B General Permit for Construction Activity
C " Employee Training Attendance Record
D Non-Storm Water Discharge Visual Inspection Record
E Wet Season Visual Observation Record
F Annual Site Compliance Evaluation
G Notice of Noncompliance
H Record Retention and Report Page Updates
I Glossary of Terms
J Groundwater Analytical Testing Results
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Table of Contents
Page
LIST OF TABLES
Table 5-1. Construction Site Pollutants ............................................................... 5-2
Table 5-2. Common Sources of Pollutants in Urban Runoff ...................................... 5-4
LIST OF FIGURES
Figure 3-1. Site Plan Map .............................................................................. 3-2
Figure 3-2. Surrounding Area ......................................................................... 3-5
Figure 6-1. Vehicle Drip Sheets ....................................................................... 6-5
Figure 6-2. Stabilized Construction Entrance ........................................................ 6-6
Figure 6-3. Silt Fence ................................................................................... 6-8
Figure 6-4. Straw Bale Barrier ......................................................................... 6-9
Figure 6-5. Sand Bag Barrier ........................................................................ 6-10
Figure 6-6. Filter Fabric Fence Drop Inlet Filter ................................................. 6-11
Figure 6-7. Gravel and Wire Mesh Curb Inlet Filter ............................................. 6-12
Figure 6-8. Drop Inlet Sediment Trap .............................................................. 6-13
Figure 6-9. Gravel and Wire Mesh Drop Inlet Filter .................. : .......................... 6-14
« Figure 6-10. Block and Gravel Drop Inlet Filter .................................................. 6-15
J Figure 6-11. SWPPP Site Plan ....................................................................... 6-16
Figure 7-1. Siltation Basin ............................................................................. 7-3
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Owner Certification
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to ensure that qualified
personnel properly gathered and evaluated the information submitted. Based on my inquiry
of the person or persons who managed the system/or those persons directly responsible for
gathering the information, the information submitted is to the best of my knowledge and
belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing
violations.
The City of Carlsbad
2075 Las Palmas Drive
Carlsbad, CA 92009
(760)438-1161
By: '.
Date
Engineer Statement
This SWPPP was prepared by me or under my direction and direct supervision. I have
exercised responsible charge of the design of this plan as defined in Section 6703 of the
Business and Professions Code, and the design is consistent with current standards.
Earth Tech
9675 Business Park Avenue
San Diego, CA. 92131
Phone: (619) 536-5610
By:
Michael W. Ruth, P.E.Date
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Page v
Revision Log
Revision Date Approved
Storm Water Pollution Prevention Plan
24694.10/SWPPP-fmal .doc/8-30-99
Page vi
SECTION 1
INTRODUCTION
i. INTRODUCTION
1.1 BACKGROUND
In 1972 Congress passed significant amendments to the Federal Water Pollution Control Act
(commonly referred to as the Clean Water Act [CWA]) to prohibit the discharge of pollutants
to waters of the United States from a point source, unless the discharge is authorized by and in
compliance with a National Pollutant Discharge Elimination System (NPDES) permit.
In 1987, amendments to the CWA added Section 402(p), which establishes a framework for
regulating municipal and industrial storm water discharges under the NPDES program.
On November 16, 1990, the U.S. Environmental Protection Agency (USEPA) published final
regulations that establish storm water permit application requirements for storm water
discharges associated with industrial activities and from municipal separate storm water
systems that discharge either directly to waters of the U. S. or indirectly through municipal
separate storm water systems. The regulations require that discharge of storm water associated
with construction activity (storm water discharges) from soil disturbances of five (5) acres or
more must be regulated as an industrial activity and covered by a NPDES permit. In order to
comply with the terms of the general permit to discharge storm water associated with
construction activity, a Notice of Intent (NOI) has been filed with the State of California
Regional Water Quality Control Board (State Water Board). A copy of the NOI is included in
Appendix A.
1.2 GENERAL PERMIT
The General Permit for Storm Water Discharges Associated with construction activity that was
enacted by the State Water Board requires owners of land where construction activity occurs
to:
• Eliminate or reduce most non-storm discharges to storm water systems and
other waters of the nation.
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Section 1. Introduction
• Develop and implement a Storm Water Pollution Prevention Plan (SWPPP) that
is appropriate to construction site-specific conditions.
• Perform inspections and/or monitoring of discharges to storm water systems or
receiving waters
The implementation and enforcement of the general permit has been delegated to the nine
California Regional Water Quality Control Boards (Regional Water Boards). The general
permit, included as Appendix B, is intended to initiate the regulation of storm water
discharges. By using the general permit process, the State Water Board is attempting to reduce
the otherwise overwhelming administrative burden associated with permitting individual storm
water discharges. The NOI, filed in connection with the project, obtains coverage for this
project under the general permit. As the program develops, the Regional Water Boards may
issue general permits containing more specific permit requirements. At that time, this project
would no longer be regulated by the state general permit, and would have to comply with
provisions of the new regional general permit.
1.3 REGULATED ACTIVITIES
Construction activity includes clearing, grading, or excavation that results in the disturbance of
at least 5 acres of total land area. Disturbance can result from moving vegetative cover and
exposing soils, or by placing mined or dredged material on top of the existing ground. If the
disturbed area is less than 5 acres, but is part of a large project, it is still defined as
construction activity and is regulated by the general permit. Activities that are not defined as
construction activities for purposes of this permit include:
• Routing of maintenance to maintain original line and grade, hydraulic capacity,
or original purpose of the underground storm drain and sewer pipelines
• Emergency construction activities required to protect public health and safety
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Section 1. Introduction
• Dredging and/or filling which is subject to regulation by the U.S. Army Corps
of Engineers pursuant to Section 10 of the Rivers and Harbors Act and/or
Section 404 of the CWA
1.4 NOTIFICATION
The owner of the property where construction activity will be occurring or has occurred is
responsible for compliance with the provisions of the general permit. To obtain coverage under
the permit of the storm water discharges, the owner must file a NOI for the site. If the
construction activity is being conducted within easements or on adjacent property by
agreement, the entity responsible for the construction activity must file the NOI. The NOI
should be sent with the appropriate fee to the State Water Board in Sacramento.
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SECTION 2
HOW TO USE THIS DOCUMENT
..X
sy.rTTON 2. HOW TO USE THIS DOCUMENT
2.1 GOALS OF SWPPP
This SWPPP is intended to be a living document. Its intent is to guide the property owner and
contractors through compliance with the regional general permit for construction activities.
Parties responsible for compliance should read the general permit included as Appendix B.
The SWPPP has two major objectives:
1. Help identify and describe the potential source of sediments or other source of
pollutants that affect the quality of storm water discharges.
2. Prescribe Best Management Practices (BMPs) or control measures, and guide
the implementation of control measures to minimize or eliminate sediment and
other pollutants in storm water discharges, both during construction and post-
construction.
The BMP handbook provides guidance for controlling, reducing, or eliminating the discharge
of pollutants in storm water. Included in the SWPPP are site description, identification of
construction and contractor activities that could cause pollutants in the storm water, practices
to reduce pollutants, erosion and sediment control, post-construction control, employee
training, site inspections, record keeping, and elimination of non-storm water discharges.
During construction, the SWPPP will be referred to and refined by the owner and contractors
as changes occur in construction which will have a significant effect on the discharge of
pollutants.
This SWPPP should not be just put on a shelf and never used. For the goals to be achieved and
the responsible parties to be in conformance with the NPDES regulation, this must be a
working plan. The job site copy should be marked up. Note which BMPs work better than
others. Make corrections as required during the progression of the project. Make suggestions
for substitutions that you think will better accomplish the purposes or intended purposes, and
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Section 2. How to Use This Document
allow cost savings to the owner or increase ease of construction. See Section 2.5 for details on
the modification process.
2.2 RESPONSIBILITIES
The general permit places responsibility for compliance with the City of Carlsbad, the owner
of the property. The City of Carlsbad has hired Earth Tech to prepare the SWPPP in a manner
consistent with the current standards. Through the contract documents, the owner intends to
transfer responsibility to the contractor. A contractor is responsible for the actions or inaction
of his subcontractors in implementing the SWPPP.
This plan should be taken in a very serious manner. At this point, there are no requirements in
the general permit for sampling the runoff from the site and testing it for potential pollutants.
Provisions for this type of sampling and monitoring were originally written into the general
permit. There is speculation in the industry that the current monitoring provisions are a test. If
it looks like owners are taking adequate precautions, and that sediment and other pollutants are
being reduced, then the current monitoring program will be maintained. However, if the
owners and their agents only make superficial attempts to comply, and no real reduction of
pollutants is accomplished, it is expected by many in the industry that numerical limitations for
runoff effluent will be established. There is pressure from the environmental groups to
establish numerical limitations and require monitoring. The impact of sampling and testing,
and being forced to comply with water quality standards, is considerable. It is important to
take this plan seriously, and aggressively seek to reduce storm water pollutants from the site.
Any person who violates any permit condition of the general permit is subject to a civil penalty
not to exceed $25,000 per day of such violation, as well as any other appropriate sanction
provided by Section 309 of the Clean Water Act. Violators can also be prosecuted for civil and
criminal penalties, under the Port-Cologne Water Quality Control Act, which are in some
cases greater than those under the Clean Water Act.
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Section 2. How to Use This Document
2.3 ORGANIZATION OF SWPPP
The SWPPP is organized in nine sections to allow easy access by the user.
Section 1. Introduction - Gives general background behind the regulations.
Section 2. How to Use this Document - Reviews the goals of the SWPPP and the
structure of the plan.
Section 3. Site Description - Describes the site and surrounding area in terms of
several parameters. It also describes the project-wide storm water drainage
system and receiving waters.
Section 4. Proposed Construction - Summarizes the proposed construction activities
on site.
Section 5. Storm Water Pollutants Source Identification - Discusses historical and
potential sources of pollutants.
Section 6. Best Management Practices (During Construction) - Describes BMPs to
be implemented during the project construction.
Section 7. Best Management Practices (Post Construction) - Describes BMPs to be
implemented for this project after the project construction is completed.
Section 8. Monitoring and Reporting Program Plan - Outlines the monitoring and
reporting requirements of the plan.
Section 9. Records - Contains forms and field records.
On a day-to-day basis, it is anticipated that Sections 6, 7, and 8 will be the sections referred to
most often. However, everyone responsible for implementation of the SWPPP should be
familiar with the entire contents of the plan.
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Section 2. How to Use This Document
2.4 ACCESS TO THE SWPPP
A complete copy of the SWPPP is required to be kept on the site. It must be accessible to
those responsible for implementing the plan. Upon request, a copy of the SWPPP must be
provided to the Regional Water Board, State Water Board, or USEPA. The SWPPP is
considered a report that shall be available to the public under Section 308(b) of the CWA.
Upon request by a member of the public, the owner shall make a copy of the SWPPP available
for review, either through the Regional Board or directly to the member of the public.
2.5 MODIFICATION OF SWPPP
The SWPPP is intended to be a "living document." It will be amended whenever there is a
change, including:
• Change in ownership
• Change in construction schedule
• Completion of all construction activities
• Substitution of contractor or subcontractor
• Change in construction activity or operations
• Substitution of BMPs
The SWPPP will also be amended if its provisions or requirements violate any conditions of
the NPDES Storm Water Permit if it has not achieved the general objective of controlling
pollutants in storm water discharges.
Any proposed changes should be submitted in writing to:
City of Carlsbad
Engineering Department
2075 Las Palmas Drive
Carlsbad, CA 92009
Attn: Walter Brown
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Section 2. How to Use This Document
The owner will contact Earth Tech, ask for their recommendations if desired, and direct
Earth Tech to make the appropriate changes in the figures and text. The owner will initial the
revision log and Earth Tech will send copies of any revised portions of the report to the
California Regional Water Quality Control Board (Regional Water Board), Engineering
Department (City of Carlsbad), and all other holders of the records (i.e. field copy, office
copy, etc.).
•J
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SECTION 3
SITE DESCRIPTION
SF.rTTON 3. SITE DESCRIPTION
3.1 SITE LOCATION
The project site is located in South Carlsbad Village within the City of Carlsbad limit. The
construction area extends from Interstate 5 in the east to the San Diego Northern Railroad
(SDNR) right-of-way in the west, and from Oak Avenue in the north to the Agua Hedionda
Lagoon in the south (Figure 3.1).
3.2 SITE AREA
The total disturbed area of the project site is approximately 6 acres gross. The streets are
currently paved with asphalt concrete. The area within the SDNR is currently unpaved.
3.3 SITE TOPOGRAPHY
The topography for the project site was done by Inland Aerial Surveys Inc. on September 6,
1997.
3.4 DRAINAGE PATTERNS
The existing site is mostly developed, and all project streets are paved with asphalt concrete
and mildly sloping southwesterly. The storm water runoff currently flows down existing
concrete cross-gutter, curb and gutter, and into curb inlets located along Harding Street, Palm
Avenue, and Chestnut Avenue. The curb inlets are connected to an underground storm drain
system which is connected to a series of a narrow unlined drainage ditch, and an underground
storm drain system. This system runs north and south in the SDNR right-of-way. The
proposed 11,500 lineal feet of storm drain system outlets to an existing approved outfall which
discharges to the Agua Hedionda Lagoon. The existing 72-inch outfall will be replaced with
the new 84-inch outfall which discharges to the same discharge point of the existing 72-inch
outfall.
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PROJECT LOCA
EXISTING OUTFALL
AGUA HEDIONDA
LAGOON
EARTH Sj TECH
0675 BUSNESSPARK AVENUE SUITE 110. SAN CXECO, C*. 92131
SITE PLAN
NO SCALE
FIGURE NO.
3.1
Section 3. Site Description
3.5 TYPES OF STORM
Three types of storms produce precipitation in the regional drainage basin: general winter
storms, general summer storms (including tropical storms), and local storms. Historically, the
largest floods have been a result of the general winter storms, where rainfall occurs over a
large area. Tropical storms may occur in the summer and early fall, but have not historically
resulted in major floods. Local storms, which may occur at any time of the year, usually
produce a short duration and high intensity rainfall over a small drainage area. Depending on
the magnitude of the storm and the capacity of the storm drain system, localized flood damage
may occur. The proposed storm drain facilities are designed to accommodate the peak flows
from the 100-year storm.
3.6 VEGETATION COVER
The project segments along City streets, including Oak Avenue, Harding Street, Chestnut
Avenue, and other small cul-de-sacs, consist of approximately 6,000 lineal feet of proposed
pipelines. These portions of the project are adjacent to residential and commercial properties
and have significant street improvements, sidewalks, driveway entrances, above- and below-
ground utilities, trees, and other surface features. The street elevations range from +40 to
4-60 from west to east, respectively.
The remaining project segments along the SDNR right-of-way consist of approximately 5,500
lineal feet of pipeline and are basically undeveloped, with the exception of the SDNR tracks,
underground utilities, and the Tamarack Avenue crossing of the railroad tracks. Along the
SDNR right-of-way, the elevations range from +5 to +44 from south to north, respectively.
The majority of the ground surface is covered with sparse vegetation and localized debris.
However, a narrow unlined drainage ditch is present along the east side of the right-of-way
between Oak Avenue and Juniper Avenue within the project limits. The east side of the
southern end of the SDNR right-of-way steeply descends toward Agua Hedionda Lagoon.
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Section3. Site Description
There is an existing concrete-lined, V-shaped drainage ditch, about 200 feet long with about
30 feet of elevation change, located at the downstream end of the existing 72-inch diameter
RCP outfall. Vegetation along the shoreline of Agua Hedionda Lagoon is relatively heavy.
3.7 SURROUNDING AREA
The USGS topographic map (Figure 3.2) illustrates the surrounding area extending one-quarter
mile beyond the construction site. Agua Hedionda Lagoon is the only surface water body that
surrounds the southward side of the project site. The existing pipe outlet to the Agua Hedionda
Lagoon consists of a concrete-lined channel where there is no wetland vegetation. The
topographic map is drawn at a scale of 1:24000.
3.8 SOILS
A geotechnical investigation draft report, "Geotechnical Investigation, Vista/Carlsbad
Interceptor Sewer Replacement and South Carlsbad Storm Drain Projects, Carlsbad,
California, dated November 5, 1997," has been prepared exclusively for this project by
Woodward-Clyde International-Americas'. The investigation addresses various topics,
including but not limited to:
• Surface and subsurface conditions
• Groundwater conditions
• Geologic hazards
• Construction dewatering
• Preliminary groundwater contamination screening
• Soil corrosivity
• Remedial earthwork measures
• Excavation characteristics
• Temporary construction slopes
• Earthwork specifications
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SCALE = 1:24,000
EARTH TECH
S675 BU3NESSPARK AVENUE SUTTC 110. SAM DIECO. CA, S2131
SURROUNDING
AREA
FIGURE NO.
3.2
Section 3. Site Description
• Trench excavations and shoring
• Pipe loadings and settlements
• Pipe on slope stabilization measures
• Trenchless technology considerations
• Pavements
Information including background data, geologic and topographic maps and reports, aerial
photographs, geotechnical reports for nearby project sites, and pertinent Woodward-Clyde
project files were reviewed to assist in evaluating the pipeline alignments and project design.
Site reconnaissance was conducted. New soil and groundwater samples were collected during
these investigations. A copy of this investigation report can be obtained from the Woodward-
Clyde office.
3.9 RUNOFF COEFFICIENT
Based upon the U.S. Department of Agriculture Soil Conservation Service maps, the site is
primarily composed of type A soils. Currently, the project site is largely residential areas with
some commercial buildings and paving on site; therefore, the runoff coefficient ranges from
0.3 to 0.7 for open space to commercial, respectively. The average runoff coefficient for the
project site, assuming 35 percent commercial and 65 percent residential, is 0.50.
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SECTION 4
PROPOSED CONSTRUCTION
SF.nrnN 4. PROPOSED CONSTRUCTION
4.1 GENERAL
The design project is a joint effort by the City of Carlsbad and Carlsbad Municipal Water
District to design and optimize the constructability of the storm drain and interceptor sewer in
the South Carlsbad Village project area. The project involves the design of a storm drain
system consisting of underground pipe extending from Agua Hedionda Lagoon northward
approximately 5,500 feet, within the easterly side of the SDNR right-of-way, to Oak Avenue,
and then easterly in Oak Avenue to Roosevelt Street, a distance of about 600 feet. A second
component of the project is a storm drain extending easterly in Chestnut Avenue from the
railroad right-of-way to Harding Street, a distance of about 1,700 feet, where it will turn
northerly and southerly extend to Oak Avenue and Magnolia Avenue, respectively. A third
component of the project is a storm drain extending easterly in Chinquapin Avenue about 300
feet from the railroad right-of-way to intercept an existing 24-inch-wide lined ditch on the
north side of Chinquapin Avenue. Curb inlets are to be designed to intercept surface drainage
and conveyed into an underground storm drain system which eventually discharges into an
existing outfall at Agua Hedionda Lagoon. In addition to the items mentioned above, the
project involves construction of storm drain pipe under the existing railroad tracks to pick up
surface drainage from Chestnut Avenue on the west side of the railroad right-of-way. The
existing ditch, which runs southerly along the west side of the railroad tracks, will be replaced
by constructing a new storm drain line southerly from Oak Avenue and constructing a new
energy dissipater prior to discharging the storm flows to Agua Hedionda Lagoon.
The following specific storm drain improvements are proposed as described below:
• 30-inch and 42-inch RCP along Oak Avenue between Interstate-5 and Harding
Street
• 42-inch RCP along Harding Street between Oak Avenue and Pine Avenue
• 48-inch RCP along Harding Street between Pine Avenue and Chestnut Avenue
• 30-inch RCP along Magnolia Street between Interstate-5 and Harding Street
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Section 4. Proposed Construction
• 30-inch RCP along Harding Street between Magnolia and Palm Avenue
• 42-inch RCP along Harding Street between Palm Avenue and Chestnut
• 30-inch RCP along Pine Avenue between Interstate-5 and Harding Street
• 24-inch and 30-inch RCP along Chestnut between Interstate-5 and Harding
Street
• 24-inch RCP along Palm Avenue between Interstate -5 and Harding Street
• 60-inch RCP along Chestnut Avenue between Harding Street and Roosevelt
Street
• 3'x8' RGB and 72-inch RCP along Chestnut Avenue between Roosevelt Street
and SDNR right-of-way
• 24-inch RCP from the west side of Chestnut Avenue between the street ends and
SDNR right-of-way
• 24-inch and 30-inch RCP along Chinquapin Avenue between Harbor Drive and
SDNR right-of-way
• 3'x 5' RGB and 54-inch RCP along the east side of the SDNR tracks between
Oak Avenue and Chestnut Avenue
• 84-inch RCP along the east side of the tracks between Chestnut Avenue and the
outlet at the Agua Hedionda Lagoon
4.2 GRADING
The segment of the project within the SDNR right-of way, as previously described, is basically
undeveloped. The ground surface is covered with sparse vegetation and localized debris. The
site will be re-graded as part of the backfill requirements in conjunction with the construction
of approximately 5,500 lineal feet of storm drain system, 3,600 lineal feet of low flow earthen
channel, and 4,700 lineal feet of sewer lines.
Storm Water Pollution Prevention Plan Page 4-2
24694.10/SWPPP-fmal.doc/8-30-99
Section 4. Proposed Construction
4.3 PAVING
The remaining project portions along City streets, including Oak Avenue, Harding Street,
Chestnut Avenue, and other small streets, consist of approximately 6,000 lineal feet of
proposed pipelines. These portions of the project have significant street improvements,
sidewalks, driveway entrances, above- and below-ground utilities, trees, and other surface
features. The new pipe trenches along these roads/streets will be re-paved with asphaltic
concrete to match the existing finished surface.
4.4 DRAINAGE
The storm runoff will surface drain and then get picked up by new curb inlets. The proposed
curb inlets are to be designed to intercept surface drainage flows at appropriate locations
determined by hydrologic and hydraulic analysis of the drainage basin. The proposed curb
inlets throughout the project tie into an underground storm drain system, outletting to a new
energy dissipater prior to discharging the storm flows to Agua Hedionda Lagoon.
4.5 RUNOFF COEFFICIENT
After all the underground storm drain system is completed, the runoff coefficient for the site
will remain at 0.5, the same as prior to the storm drain construction.
4.6 CONSTRUCTION SCHEDULE
Construction is expected to commence on October 1, 1998. The duration of the construction
will be approximately 1.5 years.
Storm Water Pollution Prevention Plan Page 4-3
24694.10/SWPPP-fmal.doc/8-30-99
SECTIONS
POLLUTANT SOURCE IDENTIFICATION
5. POLLUTANT SOURCE IDENTIFICATION
The primary sources of storm water pollution are nutrients, trace metals, pathogens, synthetic
organic compounds, sediment, oxygen demanding substances, and miscellaneous waste.
Sediment from erosion is the pollutant most frequently associated with this construction site.
The state construction general permit prohibits discharges which do not result from rainfall.
However, during construction, certain non-storm water discharges are allowed that do not
cause a significant pollution problem.
5.1 HISTORICAL POLLUTANTS
No environmental information was provided for review as to the existence of historical
pollutants on the project site. The current groundwater analytical was performed by
Woodward-Clyde. A copy of the data testing results is provided in Appendix J:
• Reference: Analytical Groundwater Testing Data Report (March 27, 1998)
Vista/ Carlsbad Interceptor Sewer Replacement Project and South Carlsbad Village
Storm Drain Project CMWD Project No. 91-403 and Project No. 3528 Carlsbad,
California Woodward-Clyde Reference No. 9751 028 A-001 1
5.2 POSSIBLE POLLUTANTS (DURING CONSTRUCTION)
A variety of pollutants are anticipated to be on site during construction activities. Table 5-1
lists common pollutants which are typically on site during construction and may be present in
storm water runoff from the site unless appropriate BMPs are implemented.
90% Storm Water Pollution Prevention Plan Page 5-1
24694.10/S WPPP-fmal. doc/9-22-98
TABLE 5-1. CONSTRUCTION SITE POLLUTANTS
CATEGORY
Adhesive
Cleaners
Plumbing
Painting
Woods
Masonry and Concrete
Floors and Walls
Remodeling and Demolition
Air Conditioning and Heating
Yard O&M
Landscaping and Earthmoving
Materials Storage
PRODUCT POLLUTANTS
Adhesives, Glues
Resins, Epoxy Synthetics
Calks, Sealers, Putty, Sealing Agents
Coal Tars (Naptha, Pitch)
Polishes (Metal, Ceramic, Tile)
Etching Agents
Cleaners, Ammonia, Lye, Caustic Sodas
Bleaching Agents
Chromate Salts
Solder (Lead, Tin), Flux (Zinc Chloride)
Pipe Fitting (Cut Shavings)
Galvanized Metals (Nails, Fences)
Electric Wiring
Paint Thinner, Acetone, MEK, Stripper
Paints, Lacquers, Varnish, Enamels
Turpentine, Gum Spirit, Solvents
Sanding, Stripping
Paints (Pigments), Dyes
Sawdust
Particle Board Dusts (Formaldehyde)
Treated Woods
Dusts (Brick, Cement)
Colored Chalks (Pigments)
Concrete Curing Compounds
Glazing Compounds
Cleaning Surfaces
Flashing
Dry wall
Tile Cutting (Ceramic Dusts)
Adhesives*
Insulation
Venting Systems
Brick, Cement, Saw, Drywall
Insulating
Coolant Reservoirs
Adhesives*
Vehicle and Machinery Maintenance
Gasoline, Oils, Additives
Marking Paints (Sprays)
Grading, Earth Moving
Portable Toilets
Fire Hazard Control (Herbicides)
Health and Safety
Wash Waters (Herbicides, Concrete, Oils, Greases)
Planting, Plant Maintenance
Excavation, Tilling
Masonry and Concrete*
Solid Wastes (Trees, Shrubs)
Exposing Natural Lime or Other Mineral Deposits
Soils Additives
Revegetation of Graded Areas
Waste Storage (Used Oils, Solvents, etc.)
Hazardous Waste Containment
Raw Material Piles
Phenolics, Formaldehydes
Phenolics, Formaldehydes
Asbestos, Phenolics, Formaldehydes
Benzene, Phenols, Naphthalene
Metals
Metals
Acidity/Alkalinity
Acidity/Alkalinity
Chromium
Lead, Copper, Zinc, Tin
Copper
Zinc
Copper, Lead
VOC's
Metals, Phenolics, Mineral Spirits
VOC's
Metals
Metals
BOD
Formaldehyde
Copper, Creosote
Acidity, Sediments
Metals
Asbestos
Acidity
Copper, Aluminum
Dusts
Minerals
Asbestos
Aluminum, Zinc
Dusts
Asbestos
Freon
Oils and Grease, Coolants
Benzene and Derivatives, Oils
and Grease
Vinyl Chloride, Metals
Erosion (Sediments)
BOD, Disinfectants (Spills)
Sodium Arsenite, Dinitro Compounds
Rodenticides, Insecticides
Pesticides, Herbicides, Nutrients
Erosion (Sediments)
BOD
Acidity/Alkalinity, Metals
Aluminum Sulfate, Sulfur
Fertilizers
Spills, Leaks, Polluted Discharge
Spills, Leaks, Polluted Discharge
Dusts, Sediments, Polluted Discharge
' See above categories
Note: VOC = Volatile Organic Compounds, BOD = Biochemical Oxygen Demand due to the use of oxygen by microorganism
decomposing materials.
References: USEPA, 1973. Processes, Procedures, and Methods to Control Pollution Resulting from Construction Activity. Office of Air and
Water Programs, EPA 430/9-73-007. October, 1973.
Mech, Mark L. and Margaret Lattin Bazany, 1991. Construction Creates Own Set of Hazardous Wastes. Hazmat World, August
1991.
Gosselin, R.E., Ph.D., R.P. Smith, Ph.D., and H.C. Hodge, Ph.D., 1984. Clinical Toxicology of Commercial Products, Fifth Ed.,
Williams and Wilkins, Baltimore/London.
Section 5. Pollutant Source Identification
Construction waste is typically not biologically significant. However, any excess lumber or
other waste, especially smaller pieces which could be carried off site by storm water, could
detrimentally affect beneficial uses downstream. Packaging materials such as paper, cellophane
and plastics can be harmful to the environment in a similar manner.
Soil erosion can be a major source of pollutants from construction activities, due to the area of
ground exposed to erosion by water and wind. The on-site soil can be prone to absorb and bind
toxic pollutants, and it is susceptible to erosion. Dust and other airborne pollutants falling on
the site can be picked up by storm water flows. Concrete washout, while not toxic, does
contain fine particulates that are detrimental to some beneficial uses of waterways.
Air pollution, in addition to depositing biologically insignificant particulates on site, can
deposit biologically nutritive, water-related pollutants. Oil and grease, fuel, antifreeze,
coolants, and other fluids fall in this category. Those pollutants can drip from the equipment,
be spilled during fueling, or leak from storage areas. While heavy equipment is the largest
potential source of these pollutants, standard vehicles are additional sources.
The plants, adhesives and solvents used in construction all contain toxic materials. Improper
use, storage, and disposal of these substances can pollute storm water runoff from the site.
Lumber that has been treated with chemical preservatives, and plated metals, can also be
sources of pollutants.
5.3 POSSIBLE POLLUTANTS (POST CONSTRUCTION)
The completion of construction activities represents the removal of some pollutant sources
from the site (Table 5-2). The contractor must ensure that the post-construction BMPs are
properly installed and that any maintenance that may be necessary during construction is
performed. It is the responsibility of the owner (the City of Carlsbad) to provide long-term
operation and maintenance after the project is complete. Common sources of pollutants
Storm Water Pollution Prevention Plan Page 5-3
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TABLE 5-2. COMMON SOURCES OF POLLUTANTS IN URBAN RUNOFF
Pollutant
SEDIMENTS
NUTRIENTS
BACTERIA AND
VIRUSES
OXYGEN
DEMANDING
SUBSTANCES
OIL AND
GREASE
Anti-Frecz«
Hydraulic Fluids
Cleaners and
Solvents
HEAVY METALS
Chromium
Copper
Lead
Zinc
Iron
c7y/5rnynm
Nickel
Manganese
Paint
Wood
Preservatives
TOXIC
MATERIALS
Fuels
PCBs
Pesticides
Herbicides
FLOATABLES
Automobile/
Atmospheric
Deposit
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Urban
Housekeeping/
Landscaping
Practices
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Industrial
Activities
X
X
X
X
X
X
X
X
X
X
X
X--"'x
X
X
X
X
X
Construction
Activities
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Non-Storm
Water
Connections
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Accidental
Spills &
Illegal
Dumping
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
References: Minnesota PCA (1989); Herman, L, et aL (1991); Woodward-Clyde (1990);
USEPA (1991); Sdraelcr (1987); Beaton. J.. ct aL (1972); and Oberts, G. (1986).
Section 5. Pollutant Source Identification
in urban runoff, such as heavy metals, come in contact with storm water through deposition on
paved surfaces, including chromium, copper, lead, zinc, iron, cadmium, nickel, and
manganese, which are associated with automobile use. Also, weathered paint, wood
preservatives, and pesticides in and around residences are sources of heavy metals. Airborne
pollutants commonly include appreciable amounts of sulfur, toxic compounds and heavy
metals, pesticides, organic compounds, fungi, pollen and soil.
5.4 NON-STORM WATER DISCHARGE
The primary concern of the general permit issued by the State Water Board is to reduce
pollutants leaving construction sites in storm water discharge. There are several cases where
non-storm water discharges may carry pollutants off site. It is not the intent of the NPDES
storm water permitting to prohibit all non-storm water discharges. Non-storm water discharges
may be allowed if they:
• Are not subject to Regional Water Board permitting requirements
• Do not contain significant quantities of construction-related pollutants
• Are not feasible to eliminate
• Are identified and addressed in the SWPPP and monitoring program
• Are in compliance with Regional Water Board permitted requirements
In addition to the allowable sources described above, the following typical non-storm water
discharges during construction may include:
• Pipe flushing
• Street-pavement washing
• Concrete washout
• Cleanup washing
• Dewatering
Storm Water Pollution Prevention Plan Page 5-5
24694. IO/SWPPP-final.doc/8-30-99
Section 5. Pollutant Source Identification
After construction is completed, several of the discharges may still occur occasionally,
including:
• Discharge from broken pipes
• Cleanup washing
Based upon typical construction activities and studies of suburban storm water, the potential
exists of pollution of water resources through non-storm water discharges.
Allowable non-storm water discharges for construction sites are as follows:
• Discharges from fire fighting
• Fire hydrant flushing
• Potable water sources including dechlorinated water line flushing
• Uncontaminated groundwater water resulting from dewatering activities
• Foundation or footing drains where the flows are not contaminated with process
materials
• Natural occurring water such as springs, wetlands, and riparian habitat
• Irrigation water discharged during seeding, planting, and maintenance, provided
fertilizer and pesticides are applied correctly
• Pavement wash waters for dust control and general housekeeping practices,
provided spills or leaks of toxic or hazardous materials have not occurred and
detergents are not used
Storm Water Pollution Prevention Plan Page 5-6
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SECTION 6
BEST MANAGEMENT PRACTICES (DURING CONSTRUCTION)
J
I SF.rTTfW 6. BEST MANAGEMENT PRACTICES (DURING CONSTRUCTIONS
6.1 BMP OBJECTIVES
Provided the construction design requirements, specifications, and other construction
documents necessary for the construction bidding, permitting, and inspection are compatible,
BMP objectives for the construction period based on the grading and drainage plan are
described below.
6.1.1 Practice Good Housekeeping
Practicing good housekeeping, such as managing pollutant sources and modifying construction
activities, will keep potential pollutants from being either discharged or transported off site.
Employ proper handling procedures to transport materials and waste.
6.1.2 Contain Waste
Designated areas will be set up to dispose of all construction waste to keep storm water from
j
flowing onto or off of any project areas.
6.1.3 Stabilize Disturbed Area
Any exposed soil is subject to erosion. To prevent erosion, disturbed soil may be covered by
vegetative, chemical, or physical stabilization. Whenever active construction is not occurring
on a portion of the site, the disturbed soils will be temporarily stabilized.
6.1.4 Control Site Perimeter
Runoff from the project site should be free from excessive sediment and other pollutants.
6.1.5 Control Internal Erosion
To trap and remove sediment-laden water in runoff, temporary barrier basins are set up which
pond the storm water and allow sediments to settle out. To implement sediment trapping, silt
.; fences, straw bale barriers, and sand bag barriers are used. The existing siltation basin at the
90% Storm Water Pollution Prevention Plan Page 6-1
24694.10/SWPPP-fmal. doc/9-22-98
Section 6. Best Management Practices (During Construction)
south end of the storm drain near the lagoon will be used, if necessary, to divert construction
runoff. The contractor will clean up the siltation basin if this facility is used during
construction.
6.2 CONTRACTOR ACTIVITIES
Selecting BMPs for contractor activities is to properly manage construction activity and
prevent sediment and other construction wastes from reaching the drainage system or being
transported off site.
6.2.1 Material Delivery and Storage
When delivering and storing hazardous materials, designated areas will be assigned to prevent
and reduce the discharge of pollutants to storm water. Materials will only be used where and
when needed to complete the construction activity.
• Fuel and lubricate equipment using mobile units to avoid storage of oil and
grease on site.
• Keep any potential pollutants that have to be stored on site in a bermed area.
• Keep materials that are potential pollutants covered to avoid contact with storm
water.
6.2.2 Solid Waste Management
To prevent or reduce the discharge of pollutants to storm water from solid waste.
• Provide water-tight waste containers in designated areas.
• Label all containers in accordance with type of materials inside.
• Arrange for waste collection on a daily basis.
Storm Water Pollution Prevention Plan Page 6-2
24694.1O/SWPPP-finaI.doc/8-30-99
Section 6. Best Management Practices (During Construction)
6.2.3 Hazardous Waste Management
Many of the chemicals used on construction sites are hazardous materials. For this project,
stripe paints will produce hazardous waste. To prevent or reduce the discharge of pollutants to
storm water from hazardous waste, proper material use, waste disposal, and training of
employees and field workers are required.
• Do not clean paint containers or brushes in the dirt, street, gutter, or storm
drain.
• Dispose of painting materials in an approved manner off site.
• Store hazardous materials in original containers only.
6.2.4 Concrete Waste Management
To help reduce storm water pollution from concrete waste, designated areas for on-site
washout are at least 50 feet from storm drains, open ditches, or water bodies. For off-site
washout of concrete trucks, designated areas are arranged. With the proper training of
employees and subcontractors, storm water pollution can be avoided.
• Dispose of concrete washout in an earthen basin to prevent particulates from
entering storm water runoff.
6.2.5 Vehicle and Equipment Cleaning
Prevent or reduce the discharge of pollutants to storm water from vehicle and equipment
cleaning by using off-site facilities, eliminating discharges to the storm drain by infiltrating the
wash water, and training employees and subcontractors.
• Maintain all equipment and construction vehicles on a regular basis to prevent
any leaks. A piece of equipment with any leak(s) will result in the equipment
being taken out of service until the leak(s) is repaired.
Storm Water Pollution Prevention Plan Page 6-3
24694.10/SWPPP-fmal.doc/8-30-99
Section 6. Best Management Practices (During Construction)
• Use vehicle drip pans or sheets in accordance with Figure 6.1 to avoid
contaminating soil when equipment is maintained or stored on site.
6.3 EROSION AND SEDIMENTATION CONTROL
Given that the existing site, within the SDNR right-of-way, has no vegetative cover, sediment
from the site is the major potential pollutant to storm water.
6.3.1 Scheduling
Scheduling the construction project activities helps reduce the amount and duration of soil
exposed to erosion by wind, rain, runoff, and vehicle tracking.
6.3.2 Seeding and Planting
In sections where cleared areas of construction has ceased, seeding of grasses and plantings of
trees, shrubs, vines, and ground covers provide long-term stabilization of soil.
6.3.3 Dust Control
The silty sands within the SDNR right-of-way may be subject to erosion by prevailing winds.
• Apply water in the SDNR right-of-way areas as needed to control dust.
6.3.4 Stabilized Construction Entrance
Stabilizing the construction entrance significantly reduces the amount of sediment tracked off
site from wheels of construction vehicles. The entrance is a stabilized pad of aggregate
underlain with filter cloth located at any point where traffic will be entering or leaving a
construction site to or from a public right-of-way, street, alley, sidewalk, or parking area (see
Figure 6.2).
Storm Water Pollution Prevention Plan Page 6-4
24694.10/SWPPP-final.doc/8-30-99
NO SCALE
EARTH «1 TECH
8675 BUSmESSPAflK AVENUE SHOE 110. SAN WEBO. CA, 82131
VEHICLE DRIP
SHEETS
FIGURE NO.
6.1
50'MIN.
±
PUBLIC RIGHT-
OF-WAY
3TE3TjP3
8-M/N.* ^fei
PROFILE
3lSTiIHii-
EXISTING GROUND PUBLIC RIGHT-OF-WAY
PROVIDE APPROPRIATE TRANSITION
BETWEEN STABILIZED CONSTRUCTION
ENTRANCE AND PUBLIC RIGHT-OF-
WAY
NO SCALE
EARTH TECH
9675 BUSNESSPARK AVENUE SUITE 110. SAN CXCCO. CA.
STABILIZED
CONSTRUCTION
ENTRANCE
FIGURE NO.
6.2
I
Section 6. Best Management Practices (During Construction)
6.3.5 Silt Fence
A silt fence is a temporary sediment barrier made of filter fabric stretched across and attached
to supporting posts, entrenched, and sometimes backed by a wire fence for support. The silt
fence detains sediment-laden water, promoting sedimentation behind the fence, and decreases
the velocity of low flows in swales. The silt fence will be constructed in accordance with
Figure 6.3.
6.3.6 Straw Bale Barrier
A straw bale barrier consists of a series of secured anchored bales placed end-to-end along a
level contour in a shallow trench and staked to hold them in place. The barrier detains
sediment-laden runoff, creating a pond behind the barrier where sedimentation occurs. The
straw bale barrier will be constructed in accordance with Figure 6.4.
6.3.7 Sand Bag Barrier
Stacking sand bags along a level contour creates a barrier which detains sediment-laden water
and ponding water upstream of the barrier, and promote sedimentation. Sand bags will be
installed as shown in Figure 6.5. Maintain barriers by removing all accumulated material after
any significant rainfall or when accumulated material exceeds 6 inches. Repair or replace sand
bags as required.
6.3.8 Storm Drain Protection
Inlet protection devices are designed to prevent sediment-laden storm drain water from
entering a storm drain.
• Construct storm drain inlet protection in locations shown on the erosion control
plan in accordance with Figures 6.6 through 6.11.
Storm Water Pollution Prevention Plan Page 6-7
24694.10/SWPPP-fmal.doc/8-30-99
1. SET POSTS AND EXCAVATE A
4 BY 4 IN (10 BY 10 CM)
TRENCH UPSLOPE FROM AND
ALONG THE LINE OF POSTS.
2. STAPLE WIRE FENCING TO
THE POSTS.
3. ATTACH THE FILTER FABRIC TO
THE WIRE FENCE AND EXTEND IT
INTO THE TRENCH.
4 IN (10 CM)
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL
NO SCALE
EARTH TECH
967S BUSNESSPARK AVEKUC SUfTE HO. SAN WECO. CA. «2IJ1
SILT FENCE FIGURE NO.
6.3
FLOW
SlS^llSlSlfe' ^- 4" VERTICAL FACE
EMBEDDING DETAIL
ANGLE FIRST STAKE TOWARD
PREVIOUSLY LAID BALE
FLOW OR NYLON
BOUND BALES
PLACED ON THE
CONTOUR
2 RE-BARS.STEEL PICKETS.OR
2"X 2" STAKES 1 1/2' TO
2' IN GROUND
ANCHORING DETAIL
DRAINAGE AREA LESS THAN 1 ACRE
NO SCALE
EARTH TECH
967S BUSINESSPARK AVtNUE SUtTt 110. SAN DCCO. CA. S2131
STRAW BALE
BARRIER
FIGURE NO.
6.4
18" MIN
4" PVC PIPE
FLOW
( Ills
,— 6" MIN
/ DIAMETER ROCK
/
48" MIN 48" MIN
CROSS-SFCTION
WOVEN FABRIC SANDBAG FILLED WITH
COARSE SAND-MIN WEIGHT 40 LSS.
•4" PVC PIPE FOR DRAINAGE
DEPENDING -ON FIELD CONDITIONS
24" MIN
1 I I
FRONT VIEW
NO SCALE
EARTH ^^ TECH
9C7S BUSMCSSPARK AVENUC SUOE 110. SAN OIECO. CA. B2131
SAND BAG
BARRIER
FIGURE NO.
6.5
•STAKES
— DROP INLET WITH GRATE
FILTER FABRIC
F! FVAT10N
STAKES
FILTER FABRIC
SEDIMENT LADEN;NOFF
WASHED GRAVEL
DROP INLET
BURIED FILinR rABRIC
PROFl! E NO SCALE
EARTH TECH
9fK BUS«ESSPARK AVEXUC SUtrt 110. SAK tXEGO. O. «2I3'
FILTER FABRIC
FENCE DROP
INLET FILTER
FIGURE NO.
6.6
GRAVEL F1LTER-
(3/4" TO 3" GRAVEL)
WIRE MESH WITH
1/2" OPENINGS
SEDIMENT
CONCRETE GUTTE;CURB INLET
NO SCALE
EARTH TECH
9675 BUSINESSPARK AVCNUC SUTTC 110. SAN DCGO. CA. 92131
GRAVEL AND WIRE
MESH CURB INLET
FILTER
FIGURE NO.
67
STORAGE YOLUME-3soo CUFT. PER
DISTURBED DRAINAGE.
-SEDIMENT-LADEN RUNOFF
I AS* I r-OEPTH BELO* TOP OF INLET:
\ MIN r - WAX 2'
•-. -._. I I
WEE? HOLES
FOR
OEWATE?.!NG
7*'7
^-LARGER PARTICLES
J SETTLE OUT
STORW WATER
LARGE?. PARTICLES
REWOVEO
DROP INLET
>PPI ir^
THIS W-THOD Or INLET PROTECTION IS APPLICABLE WHERE HEAVY FLOWS
ARc rxp^cT-D AND WHEHE AN OVERFLOW CAPABILITY AND EASE OF
MAINTENANCE ARE DESIRABLE. NU
EARTH TECH
0675 BUSWCSSPARK AVCNUC SU(TE 110. SAN OCCO. CA. 92131
DROP INLET
SEDIMENT TRAP
FIGURE NO.
6.8
J
RUNOFF WATER
WITH SEDIMENT
-3/4" TO 3" GRAVEL
HZ" MIN DEPTH)
SEDIMENT-
WIRE MESH (1/2'
OPEN1NGS) WITH
FILTER FABRIC
ON TOP
FILTERED WATER
NO SCALE
)R T H TECH
BUSWESSPARK AVENUE SWTE 110. SAN OEGO. CA. 92131
GRAVEL AND WIRE
MESH DROP INLET
FILTER
FIGURE NO.
6.9
WIRE MESH WITH I/2" OPENINGS
— CONCRETE BLOCK
GRAVEL FILTER
' TO 3" GRAVED
WIRE MESH
DROP INLET WITH GRATE
'FILTERED WATER
NO SCALE
EARTH TECH
B675 BUS1NESSPARK AVENUE SUTTt 110. SAN Df.CC. CA, S2131
BLOCK AND GRAVEL
DROP INLET FILTER
FIGURE. NO.
6.10
PINE
ELEMENTARY
SCHOOL
JEFFERSON STJEFFERSON ST
EXIST. 18*
Q ROOSEVELT ST ROOSEVELT ST
REACH #5-
63
' EXIST. EA&THEN CHANNJ L REACH
EXIST
SILTATION
BASIN
EARTH TECH
SWPPP SITE PJAN FIGURE 6.11
Section 6. Best Management Practices (During Construction)
Maintain protection devices by removing all accumulated material after any
significant rainfall or when accumulated material exceeds 6 inches. Repair or
replace devices as required.
Remove dirt as soon as excavated to eliminate a large stockpile.
Avoid significant dirt stockpiles which would result in muddy streets.
J
Storm Water Pollution Prevention Plan Page 6-17
24694.10/S WPPP-fmal .doc/8-30-99
SECTION?
BEST MANAGEMENT PRACTICES (POST CONSTRUCTION)
7. BEST MANAGEMENT PRACTICES (POST CONSTRUCTION)
7.1 SOURCE CONTROLS
Source controls are measures aimed at reducing the amount of sediment and other pollutants
that become available for transport by storm water or non-storm water runoff. They include
procedures to prevent pollutants from ever being deposited on site, and to prevent soil from
being exposed to elements any longer than is necessary.
7.1.1 Maintenance and Repair
The owner will arrange for the maintenance of any drainage or storm water pollution control
measures after construction is complete. The owner (the City of Carlsbad) retains the
responsibility of maintenance and clean-up.
7.1.2 Inspection Procedures
Inspections are done before and after a storm event. According to the general permit, a
tracking or follow-up procedure must follow an inspection which discovers deficiencies in the
BMPs. The results of the inspection are filed, including the date of the inspection, the
person(s) who performed the inspection, and the observations. The inspection records shall be
kept for 3 years.
7.1.3 Training Program
Employee and subcontractor training will be based on the following:
• Promote a clear identification and understanding of the problem.
• Identify BMP solutions.
• Promote employee and subcontractor ownership of the problem and the
solutions.
• Integrate employee and subcontractor feedback into training.
• A copy of the form is provided in Appendix C.
90% Storm Water Pollution Prevention Plan Page 7-1
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Section 7. Best Management Practices (Post Construction)
7.2 TREATMENT CONTROLS
Treatment controls are measures applied to keep soil and other pollutants on site once they
have become loosened by storm water erosion. Due to the nature of this project, the City will
install treatment controls for treatment of post-construction runoff. The proposed treatment
facility will utilize the existing siltation basin near the lagoon outfall to divert first-flush storm
flows directly into the lagoon (Figure 7-1).
7.3 OTHER ORDINANCES
In addition to being subject to the construction NPDES requirements, construction on site is
also controlled by the City Grading Ordinance, and municipal NPDES requirements.
7.3.1 City Grading Ordinance
The City Grading Ordinance requires that permanent erosion control be provided by use of
check dams, rip-rap or other methods as necessary. These items will be shown on the erosion
control plan. The BMPs proposed by this SWPPP meet or exceed the requirements of the
grading ordinance.
7.3.2 Municipal NPDES Permit
The City is an active member of the San Diego County NPDES Task Force. Carlsbad has
implemented a system monitoring and testing program, which consists of routine visual
inspection by street maintenance employees in connection with the City storm drain inspection
program.
Storm Water Pollution Prevention Plan Page 7-2
24694.10/S WPPP-final .doc/8-30-99
Section 7. Best Management Practices (Post Construction)
Figure 7-1. SWPPP Site Plan
J
Storm Water Pollution Prevention Plan
24694.10/SWPPP-fmal.doc/8-30-99
Page 7-3
Section 7. Best Management Practices (Post Construction)
The City BMPs include a number of programs:
• Street sweeping
• Drainage ditch cleaning
• Used motor oil drop off
• Reduction in pesticide/fertilizer use
• Erosion prevention
• Education
The street sweeping program is implemented on a weekly basis. This sweeping practice will be
a post-construction BMP applied to this project.
The City Public Works Facility serves as a public drop off location for used motor oils. This
provides proper disposal to help prevent used motor oil from getting into the off-site storm
drains.
Storm Water Pollution Prevention Plan Page 7-4
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SECTIONS
MONITORING AND REPORTING PROGRAM PLANS
8. MONITORING AND REPORTING PROGRAM PLANS
8.1 TRAINING
BMP monitoring for contractor activity consists of visual inspection to ensure that the BMP
was implemented and maintained according to the SWPPP. Monitoring for sediment and
erosion control consists of regular inspection to determine the effectiveness of the BMPs as
specified and installed. Inspection of the implementation of the SWPPP must be done by
trained personnel. To achieve this goal, Earth Tech will review the SWPPP with contractors,
as requested by the City, to familiarize them. The City will schedule a meeting with the
contractor representatives. At this meeting, the following topics will be covered:
• Background of the NPDES program
. • Information on potential fines, citizen lawsuits
• Review of the SWPPP section by section
• Common problem areas in implementation
• Review of monitoring checklists
• Construction details of protective measures
8.2 MONITORING REQUIREMENTS
Monitoring and inspection of the SWPPP is the responsibility of the discharger, in this case the
City. The goal of monitoring is to evaluate the effectiveness of the BMPs as specified and
installed.
8.2.1 Content
Inspection reports will contain, as a minimum, the date of the inspection, the name of the
individual performing the inspection, and the observations of that individual. A copy of the
form is provided in Appendix D.
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Section 8. Monitoring and Reporting Program Plans
8.2.2 Frequency
Visual inspection must be performed, at a minimum, prior to anticipated storm events and
after actual storm events. A copy of the form is provided in Appendix E.
8.3 REPORTING REQUIREMENTS
Reports are to be filed if the inspection indicates a noncompliance, or in the case of an
anticipated noncompliance. The notification is to identify the type(s) of noncompliance, the
actions identified to come into compliance, and a time schedule to achieve compliance.
8.3.1 Site in Compliance
As long as the inspections indicate that all measures specified in the SWPPP are correctly
installed, and that they are functioning correctly, then no reports need to be made to the
Regional Water Board. A copy of the form is provided in Appendix F.
8.3.2 Site in Noncompliance
If an inspection finds noncompliance with the SWPPP, then a noncompliance report must be
filed with the Regional Water Board. A copy of the form is provided in Appendix G.
The noncompliance report should be addressed to:
California Regional Water Quality Control Board San Diego
9771 Clairemont Mesa Boulevard, Suite B
San Diego, CA. 92124
(619) 467-2952
Storm Water Pollution Prevention Plan Page 8-2
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Section 8. Monitoring and Reporting Program Plans
8.3.3 Anticipated Noncompliance
In the event that planned changes in the construction activity may result in noncompliance with
the general permit requirements, the discharger shall notify the Regional Water Board in
advance.
8.3.4 Certification
The discharger must annually certify that the construction activity is in compliance with the
requirements of the general permit and the SWPPP. The first certification must be completed
by July 1, 1999, and each July 1" thereafter, assuming the project starts on October 1, 1998.
8.4 RECORD RETENTION
Records of all inspections, compliance certifications, and noncompliance reports must be
retained for a period of at least 3 years from the date of the measurement, report, application,
or any revised pages. A copy of the form is provided in Appendix H.
8.5 COMPLETION OF CONSTRUCTION ACTIVITY
Upon completion of all the construction activity, the discharger will file with the Regional
Water Board certification that construction activity has been completed, that all elements of the
SWPPP have been implemented, that construction and equipment maintenance waste have
been disposed of properly, and that the site is in compliance with all local storm water
management requirements. This certification will cancel coverage of the site under the general
permit.
Storm Water Pollution Prevention Plan Page 8-3
24694.10/SWPPP-final.doc/8-30-99
SECTION 9
REPORTING AND RECORDKEEPING FORMS
J
9. REPORTING AND RECORDKEEPING FORMS
9.1 COMPLIANCE CERTIFICATION
9.2 NOTICE OF COMPLETION OF CONSTRUCTION ACTIVITY
9.3 NOTICE OF ANTICIPATED NONCOMPLIANCE
90% Storm Water Pollution Prevention Plan Page 9-1
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STORM WATER POLLUTION PREVENTION PLAN
WASTE DISCHARGE IDENTIFICATION MO.
California Regional Water Quality Control Board
San Diego Region
9771 Clairemont Mesa Boulevard, Suite B
San Diego, California 92124
COMPLIANCE CERTIFICATION
DATE:
I hereby certify that the construction activity at this site is in compliance with the
requirements of Genera! Permit No. CAS000002 issued by Order No. 92-08-DWQ
by the State Water Resources Control Board, and the Storm Water Pollution
Prevention Plan prepared for this site. This certification is based upon site
inspections made by trained personnel in conformance with Paragraph 4,
Section B of the General Permit.
I further 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, the information submitted is to the best of my knowledge and belief,
true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for
knowing violations.
By: Date:
cc: SWPPP Section 9
STORM WATER POLLUTION PREVENTION PLAN
WASTE DISCHARGE IDENTIFICATION NO.
California Regional Water Quality Control Board
San Diego Region
9771 Clairemont Mesa Boulevard, Suite B
San Diego, California 92124
NOTICE OF COMPLETION OF CONSTRUCTION ACTIVITY
I hereby certify that the construction activity at this site is completed, that all
elements of the SWPPP have been completed, that construction and equipment
maintenance waste has been disposed of properly, and that the site is in
compliance with all local storm water management requirements.
I further 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, the information submitted is to the best of my knowledge and belief,
true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for
knowing violations.
By: Date:
cc: SWPPP Section 9
STORM WATER POLLUTION PREVENTION PLAN
WASTE DISCHARGE IDENTIFICATION NO.
California Regional Water Quality Control Board
San Diego Region
9771 Clairemont Mesa Boulevard, Suite B
San Diego, California 92124
NOTICE OF ANTICIPATED NONCOMPLIANCE
Date of notice:
Details of anticipated noncompliance:
Actions to avert noncompliance:
Time schedule for corrective action:
I further 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 forgathering
the information, the information submitted is to the best of my knowledge and belief, true,
accurate and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations.
CENTEX HOMES
5962 LA PLACE COURT
SUITE 250
CARLSBAD, CA 92008
PHONE: (619)431-1211
By: Date:
cc: SWPPP Section 9
APPENDIX A
NOTICE OF INTENT
State of California
State Water Resources Control Board
NOTICE OF INTENT
TO COMPLY WITH THE TERMS OF THE
GENERAL PERMIT TO DISCHARGE STORM WATER
ASSOCIATED WITH CONSTRUCTION ACTIVITY (WQ ORDER No. 92-08-DWQ)
MARK ONLY
ONE ITEM
1. [ ] Ongoing Construction
2. [X] New Construction
3. [ ] Change of Information
WDID #
I. OWNER
Name
|C|a|r|l|s |b|a|d | M | u | n | . | W | a 1 1 1 e | r |D|i|s |t | | |
Local Mailing Address
|5|9|5|0| |E|I| | |C|a|m|i|n|
City
|C|A|R|L|S|B|A|D| Mil
o| |R|e|a|l| | |
I I I I
State
C|A
Contact Person
|B|i|l|l| | | |P|l|u|m|m| e|r | | |
Title
|D|e|p|u|t|y|C|i|t|y| |E|n|g|i|n|e
Zip
|9|2|0|0|8|-| | | | |
Phone
| 7 | 6 | 0 |-| 4 | 3 | 8 |-
I I
e|r|
3|3|6|7|
II. CONSTRUCTION SITE INFORMATION
A. Developer
T|Y| |0|F| |C|A|R L|S|B|A|D| | | | | | | |
Contact Person
|D|I|C|K| |C|0|0|K| I I I I I I I I I
Local Mailing Address
|2|0|7|5| |L|A|S|P|A|L|M|A|S| |D|R|I|V|E| |
Title
|P|R|I|N|C|I|P|A|L| |I|N|S|P|E|C|T|0|R|
City
|C|A|R|L|S|B|A|D| | |
State
C|A
Zip
|9|2|0|0|9
Phone
| 7 | 6 | 0 H 4 | 3 | 8 H 1 | 1 | 6 | 1
B. Site Address
|A|L|0|N|G| |C|I|T|Y| | S|T|R|E|E|T|S| I I [ | I
County
|S|A|N| |D|I|E|G|0| I I I I I I I I I
-ity
R|L|S|B|A|D| I M I M I
State
C|A
Zip
|9|2| 0| 0|8 l-l I I I I
Phone
I I I I-
C. Is the construction site part of a larger common plan
of development or sale? [ ] Yes [ X ] No
If yes, name of plan or development
I I I III M I I I I I I I III I I I I I
D. Construction commencement date
M M D D Y Y
|0 | 2| 0| 3|0 | 0|
M M D D Y Y
E. Projected construction completion date | 0 | 8 | 0 4 | 0 | 1
III. BILLING ADDRESS
Send to:
[ X ] OWNER [ ] DEVELOPER
[ ] OTHER (Enter information at right)
Name
|C|a|r|l|s|b|a|d|M|u|n|.|W|a|t|e|r |
Mailing Address |5|9|5|0l |E|I|| |C|a|m|i|n|o| |R|e|a|l| | |
|C|A|R|L|S|B|A|D| | | | | | | | | State C | A Zip | 9 | 2 | 0 | 0 | 8 |-|
IV. RECEIVING WATER INFORMATION
A. Does your construction site's storm water discharge to (Check one):
1. [ ] Storm drain system - Enter owners name I I I I I I I I I I I I I I I
2. [X ] Directly to waters of U.S. (e.g., river, lake, creek, ocean)
3. [ ] Indirectly to waters of U.S.
B. Name of closest receiving water | A | G | U | A | |H|E|D|I|O|N|D|A| |L|A|G|0|O|N|
STATE USE ONLY
./DID:
I I M M M I I I I
NPDES Permit Number:
CA
Regional Board Office
L_U
Order Number:
Date Permit Issued:
I I I I I I I
Fee Amount Received:
$
Date NOI Received:
V. TYPE OF CONSTRUCTION (Check all that apply)
1. [ ] Residential 2. [ ] Commercial 3. [ ] Industrial 4. [] Reconstruction 5. [ ] Transportation
6. [X] Utility 99. [ ] Other (Please List)
I I I I I I I I I I I I I I I II I I I II II I I M I II f I
VI. MATERIAL HANDLING/MANAGEMENT PRACTICES
A. Types of materials that will be handled and/or stored at the site: (Check all that apply)
1. [ ] Solvents 2. [ ] Metal 3. [ X] Petroleum Products 4. [ ] Plated Products
5. [X] Asphalt Concrete 6. [ ] Hazardous Substance 7. [ X] Paints 8. [ X] Wood Treated Products
99. [X] Other (Please list)
|R|E|I|N|F|0|R|C|E|D| |C|O|N|C|R|E|T|E| |P|I|P|E|, |G|R|A|V|E|L| |P|I|P|E||B|E|D|D|I|N|G|
B. Identify proposed management practices to reduce pollutants in storm water discharges: (Check all that apply)
1. [ ] Oil/Water Separator 2. [X] Erosion Controls 3. [ ] Sedimentation Controls 4. [ ] Overhead Coverage
5. [ ] Detention/Destination Pond 99. [ ] Other ( Please List)
I I I I I I I I I I I I I I I I I I I I I I I I I I I I M
VII. SITE INFORMATION
A. Total size of construction site
10.30 Acres
B. Percent of site impervious (including rooftops)
Before construction 25 % After construction 25
VIII. REGULATORY STATUS
Is the site subject to a locally approved erosion/sediment control plan? [ X ] Yes [ ] No
If yes, name of local agency
|C|I|T|Y| |0|F| |C|A|R|L|S|B|A|D| I I I I I I I I I I I I I I I I I I I I
IX. CERTIFICATIONS
i certify under penalty of law that this document and all attachments were prepared under my direction and 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, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that
there are significant penalties for submitting false information, including the possibility of fine and imprisonment." In addition, I
certify that the provisions of the permit, including the development and implementation of a Storm Water Pollution Prevention Plan
and a Monitoring Program Plan, will be complied with.
Printed Name:Bill Plummer
Signature:Date
Title: Deputy City Engineer
NOI.doc 1/95
APPENDIXB
GENERAL PERMIT FOR CONSTRUCTION ACTIVITY
Interested Parties -2- SEP 8
1992
PAUL R. BONDERSON BUILDING
901 P STREET
P.O. BOX 100
SACRAMENTO, CALIFORNIA 95812-0100
916/657-0941
FAX: 916/657-0932
SEP 8 1992
To: Interested Parties
GENERAL CONSTRUCTION ACTIVITY STORM WATER PERMIT
Enclosed is a copy of the General Construction Activity
Storm Water Permit (Permit) , including the Fact Sheet,
Notice of Intent (NOI) form, and NOI instructions, which
was adopted by the State Water Resources Control Board
(State Water Board) on August 20, 1992."
To be covered by this Permit, the owners of land where a
construction activity occurs must submit the completed
NOI form, with the appropriate fee, to the State Water
Board. Permits are required for all storm water
discharges associated with a construction activity where
clearing, grading, and excavation results in a land
disturbance of five or more acres. Storm water
discharges from a construction activity that results in
a land disturbance of less than five acres, but which is
part of a larger common plan of development or sale,
also require a permit. Permits are required until the
construction is complete.
A permit must be obtained by October 1, 1992 for an
ongoing construction activity that satisfies these
criteria. For a new construction activity that begins
after October 1, 1992, a permit must be obtained before
construction starts.
The NOI must be sent to the following address:
State Water Resources Control Board
Division of Water Quality
Attention: Storm Water Permit Unit
P. 0. Box 1977
Sacramento, CA 95812-1977
i
Interested Parties -3- SEP 8
1992
The NOT must be accompanied by the appropriate annual
fee. The fee will either be $250.00 or $500.00
depending on the area of the construction activity. The
NOI will not be processed if not accompanied by the fee.
Enclosure 1 describes those areas in which the $250.00
annual fee applies. Dischargers in all other areas of
the State must pay the $500.00 fee.
Attachment No. I to the Permit lists the nine California
Regional Water Quality Control Boards' (Regional Water
Boards) addresses and telephone numbers. If you have
any questions or concerns related to the Permit, you
should discuss them with Regional Water Board staff.
We would appreciate it if you would inform other members
of the construction industry of the need to obtain a storm
water permit. If you know of others that need to obtain a
permit but may be unaware of the State's program, please
have them call the State Water Board's Construction
Activity Storm Water Hotline at 916/647-1146.
Sincerely,
/s/
Walt Pettit
Executive Director
Enclosures (2)
J
March 22, 1994
Enclosure 1
AREAS OF THE STATE IN WHICH THE $250.00 ANNUAL FEE APPLIES
Municipality
1. Alameda County
2. Contra Costa County
3. El Dorado County
4. Los Angeles County
5. Orange County
6. Placer Counties
7. Riverside County
J
Permitted Area
The permitted area of the county is
the westerly side of the county
which drains to San Francisco Bay.
The entire county except for the
Community of Brentwood.
The permitted area consists of the
easterly side of the county which
drains into Lake Tahoe.
The permitted area consists of the
five hydrologic subbasins which
drain into the Pacific Ocean as
follows: Santa Monica Bay, Upper
Los Angeles River, including
Sycamore Channel, Upper San Gabriel
River, Lower Los Angeles River, and
Lower San Gabriel River, including
Santa Clarita Valley. The Permit
does not cover the cities of
Avalon, Lancaster, and Palmdale.
The permitted area is delineated by
the Los Angeles County line on the
northwest, the San Bernardino
County line on the north and
northeast, the Riverside County
line on the east, the San Diego
County line on the south, and the
Pacific Ocean on the southwest.
The permitted area consists of the
easterly side of the county which
drains into Lake Tahoe.
The permitted area is delineated by
the San Bernardino County line on
the north and northwest, the Orange
County line on the west, the San
Diego County line on the south, and
the Santa Ana/Colorado River Basin
Regional Boards' boundary line on
the east (mountain crest).
Interested Parties -2-SEP 8 1992
8. Sacramento County
9. San Bernardino County
10. San Diego County
11. San Mateo County
12. Santa Clara County
The entire county except for the
incorporated City of Isleton.
The permitted area is delineated by
the Santa Ana-Lahontan Regional
Board boundary line on the north
and northeast, the Santa Ana-
Colorado River Basin Regional Board
boundary line on the east, the
San Bernardino-Riverside County
boundary line on the south and
southeast, the San-Bernardino-
Orange County boundary line on the
southwest, and the San Bernardino-
Los Angeles County boundary line on
the west.
The permitted area is delineated by
the San Diego County lines on the
north and south, the Pacific Ocean
on the west, and the
San Diego/Colorado River Basin
Regional Board boundary on the east
(mountain crest}'.
The entire county.
The Santa Clara Valley Basin
portion of the county containing
eleven hydrologic subbasins which
discharge into watercourses which
in turn flow into South San
Francisco Bay.
STATE WATER RESOURCES CONTROL BOARD
901 P STREET, SACRAMENTO, CALIFORNIA 95814
FACT SHEET
FOR
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
GENERAL PERMIT FOR
STORM WATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION ACTIVITY
BACKGROUND
In 1972, the Federal Water Pollution Control Act (also referred
to as the Clean Water Act [CWA]) was amended to provide that the
discharge of pollutants to waters of the United States from any
point source is unlawful, unless the discharge is in compliance
with a NPDES permit. The 1987 amendments to the CWA added
Section 402 (p) which establishes a framework for regulating
municipal and industrial storm water discharges under the NPDES
.program. On November 16, 1990, the U.S. Environmental Protection
Agency (USEPA) published final regulations that establish storm
water permit application requirements for specified categories of
industries. The regulations require that discharges of storm
water associated with construction activity (storm water
discharges) from soil disturbances of five (5) acres or more must
be regulated as an industrial activity and covered by a NPDES
permit.
In a recent ruling, the Ninth Circuit Court of Appeals
invalidated the exemption granted by USEPA for storm water
discharges from soil disturbances of less than five acres but
remanded the regulation to USEPA for further action. The State
Water Board, at this time, is not requiring storm water
discharges from soil disturbances of less than five acres to be
covered by this general permit. Instead, the State Water Board
will await future USEPA or court action clarifying the types of
storm water discharges that must be permitted. If necessary, the
State Water Board will reopen the general permit to accommodate
such a clarification.
While federal regulations allow two permitting options for storm
water discharges (individual permits and general permits), the
State Water Board has elected to adopt only one statewide general
permit at this time that will apply to all storm water
discharges, except from those on Indian lands and the Lake Tahoe
Hydrologic Unit. The State Water Board has previously adopted a
separate statewide general permit for all other industrial storm
water discharge categories, except for those discharges in
Santa Clara County that drain to San Francisco Bay and on Indian
Lands.
-2-
This general permit requires all owners of land where
construction activity occurs (dischargers) to:
1. Eliminate or reduce non-storm water discharges to storm sewer
systems and other waters of the nation,
2. Develop and implement a storm water pollution prevention
plan, and
3. Perform inspections of storm water pollution prevention
measures (control practices).
This general permit will be implemented and enforced by the nine
California Regional Water Quality Control Boards (Regional Water
Boards).
The general permit accompanying this fact sheet is intended to
initiate regulation of storm water discharges. Regulating many
storm water discharges under one permit will greatly reduce the
otherwise overwhelming administrative burden associated with
permitting individual storm water discharges. Dischargers must
submit a notice of intent (NOI) to obtain coverage under this
general permit. It is expected that as the storm water program
develops, the Regional Water Boards may issue general permits
containing more specific permit provisions. When this occurs,
those dischargers will no longer be regulated by this general
permit.
TYPES OF CONSTRUCTION ACTIVITY COVERED BY THIS GENERAL PERMIT
Construction activity includes clearing, grading, or excavation
that results in soil disturbances of at least five acres of total
land area. Construction activity that results in soil
disturbances of less than five acres requires a permit if the
construction activity is part of a larger common plan of
development or sale. Construction activity does not include
routine maintenance to maintain original line and grade,
hydraulic capacity, or original purpose of the facility, nor does
it include emergency construction activities required to protect
public health and safety. Dischargers may confirm with the local
Regional Water Board that a particular routine maintenance is not
subject to this general permit.
Storm water discharges from those portions of a construction
project which include dredging and/or filling which are subject
to regulation by the U.S. Army Corps of Engineers (Corps),
pursuant to Section 10 of the Rivers and Harbors Act and/or
-3-
Section 404 of the CWA, are excluded from regulation under this
general permit. Said portions of the project are, however,
subject to the certification requirements of Section 401 of the
CWA and must be addressed via the certification process. Storm
water discharges from dredge spoil placement which occurs outside
of Corps jurisdiction (upland sites) and is part of a
construction activity which disturbs five or more acres of land
are covered by this general permit.
NOTIFICATION REQUIREMENTS
The owner of the land where the construction activity is
occurring is responsible for obtaining coverage under this
general permit by filing a NOI and appropriate fee in accordance
with the NOI instructions. For construction activity conducted
on easements, or on nearby property by agreement or permission,
the entity responsible for the construction activity must file a
NOI.
A separate NOI must be submitted to the State Water Board for
each covered construction activity. Owners of land with ongoing
construction activity will be required to submit a NOI by
September 30, 1992. Owners of land with construction activity
commencing after September 30, 1992 must submit a NOI prior to
commencement of construction activity. The NOI requirements of
the general permit are intended to establish a mechanism which
can be used to clearly identify the responsible parties,
locations, and scope of operations of dischargers covered by the
general permit.
The NOI must be sent to the following address:
California State Water Resources Control Board
Division of Water Quality
Storm Water Permit Unit
P.O. Box 1977
Sacramento, CA 95812-1977
The current annual fee for this general permit is either $500 or
$250 depending on location. Discharges who fail to obtain
coverage under this general permit and are not otherwise covered
by a NPDES permit for storm water discharges will be in violation
of the CWA and the California Water Code. When construction is
complete or ownership has been transferred, dischargers are
required to notify the State Water Board indicating that all
State and local requirements have been met in accordance with
Special Provision 7 of the general permit.
-4-
TYPES OF CONSTRUCTION ACTIVITY NOT COVERED BY THIS GENERAL PERMIT
This general permit does not apply to storm water discharges from
those areas on Indian lands and the Lake Tahoe Hydrologic Unit.
Storm water discharges in the Lake Tahoe Hydrologic Unit will be
regulated by a separate permit(s) adopted by the California
Regional Water Quality Control Board, Lahontan Region
(Lahontan Regional Water Board). USEPA will regulate storm water
discharges on Indian lands. Permit applications for storm water
discharges that will be conducted in the Lake Tahoe Hydrologic
Unit should be submitted directly to the Lahontan Regional Water
Board.
DESCRIPTION OF GENERAL PERMIT CONDITIONS
The following is a brief description of the major provisions of
the general permit and the basis for the general permit.
Dischargers should read the general permit carefully.
Prohibitions
This general permit authorizes the discharge of storm water
associated with construction activity from construction sites.
It prohibits the discharge of materials other than storm water
and all discharges which contain a hazardous substance in excess
of reportable quantities established at 40 Code of Federal
Regulations (CFR) 117.3 or 40 CFR 302.4 unless a separate NPDES
permit has been issued to regulate those discharges.
Effluent Limitations
Permits for storm water discharges associated with construction
activity must meet all applicable provisions of Sections 301 and
402 of the CWA. These provisions require controls of pollutant
discharges that utilize best available technology economically
achievable (BAT) and best conventional pollutant control
technology (BCT) to reduce pollutants, and any more stringent
controls necessary to meet water quality standards.
It is not feasible at this time for the State Water Board to
establish numeric effluent limitations. The reasons why
establishment of numeric effluent limitations is not feasible is
discussed in detail in State Water Board Orders Nos. WQ 91-03 and
WQ 91-04. Therefore, the effluent limitations contained in this
general permit are narrative and include the requirement to
implement appropriate pollution prevention control practices
-5-
and/or Best Management Practices (BMPs). The BMPs may include
treatment of storm water discharges, along with source reduction,
which will constitute BAT and BCT and will achieve compliance
with water quality standards. The effluent limitations
constitute compliance with the requirements of the CWA. However,
if storm water discharges cause water quality standards to be
exceeded, this general permit may be amended, or the appropriate
Regional Water Board may adopt a general permit which replaces
this general permit to include additional effluent limitations
necessary to achieve water quality standards. Elimination or
reduction of non-storm water discharges is a major goal of this
general 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 contribute a significant pollutant load to
receiving waters. Measures to control spills, leakage, and
dumping and to prevent illicit connections during construction
can often be addressed through BMPs. This general permit
prohibits the discharge of materials other than storm water. The
general permit, however, recognizes that certain non-storm water
discharges may be necessary for the practical performance and
completion of construction projects. Such discharges include,
but are not limited to: landscape irrigation 'of erosion control
measures, pipe flushing and testing, street washing, and
dewatering. Such discharges are allowed by this general permit
if the discharges are (1) infeasible to eliminate, (2) comply
with BMPs as described in the Storm Water Pollution Prevention
Plan, (3) do not cause or contribute to a violation of water
quality standards, and (4) are not required to be permitted by
the local Regional Water Board (e.g., some Regional Water Boards
have adopted general permits for dewatering discharges).
Storm Water Pollution Prevention Plan (SWPPP)
This general permit requires development and implementation of
SWPPPs emphasizing storm water BMPs. This approach provides the
flexibility necessary to establish control practices which can
appropriately address sources of pollutants at different
construction activities.
All dischargers must prepare, retain at the construction site,
and implement a SWPPP. The SWPPP has two major objectives:
(1) to help identify the sources of sediment and other pollutants
that affect the quality of storm water discharges and (2) to
describe and ensure the implementation of practices to reduce
sediment and other pollutants in storm water discharges. The
SWPPP must include BMPs which address source reduction, and, if
-6-
necessary, should include BMPs which require treatment.
The SWPPPs are considered reports available to the public under
Section 308 (b) of the CWA and will be made available by the
Regional Water Board upon request. Required elements of the
SWPPPs include: (1) site description,
(2) erosion and sediment controls, (3) waste disposal, (4)
implementation of approved local plans, (5) proposed post-
construction controls, including description of local post-
construction erosion and sediment control requirements, and (6)
non-storm water management.
-7-
Monitoring Program
Another major feature of the general permit is the development
and implementation of a monitoring program. All dischargers are
required to conduct inspections of the construction site prior to
anticipated storm events and after actual storm events to
identify areas contributing to a storm water discharge and to
evaluate whether measures to reduce pollutant loadings identified
in the SWPPP are adequate and properly implemented in accordance
with the terms of the general permit or whether additional
control practices are needed.
Each discharger must certify annually that its construction
activity is in compliance with the requirements of this general
permit and its SWPPP. Dischargers who cannot annually certify
compliance or who have had other instances of noncompliance must
notify the appropriate Regional Water Board. A well-developed
monitoring program will provide a good method for checking on the
effectiveness of the SWPPP.
Retention of Records
The discharger is required to retain records of all monitoring
information, copies of all reports required by this general
permit, and records of all data used to complete the NOI for the
construction activity to be covered by the general permit for a
period of at least three years. This period may be extended by
request of the State and/or Regional Water Boards. With the
exception of noncompliance reporting, dischargers are not
required to submit the records, except upon specific request by
the Regional Water Board.
J
STATE WATER RESOURCES CONTROL BOARD (STATE WATER BOARD)
ORDER NO. 92-08 DWQ
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
GENERAL PERMIT NO. CAS000002
WASTE DISCHARGE REQUIREMENTS (WDRS)
FOR
DISCHARGES OF STORM WATER RUNOFF ASSOCIATED WITH CONSTRUCTION
ACTIVITY
The State Water Board finds that:
1. Federal regulations for controlling pollutants in storm
water runoff discharges were issued by the U.S.
Environmental Protection Agency (USEPA) on November 16, 1990
(40 Code of Federal Regulations (CFR) Parts 122, 123, and
124). The regulations require discharges of storm water
associated with construction activity including clearing,
grading, and excavation activities (except operations that
result in disturbance of less than five acres of total land
area and which are not part of a larger common plan of
development or sale)1 to obtain a NPDES permit and to
implement Best Available Technology Economically Achievable
(BAT) and Best Conventional Pollutant Control Technology
(BCT) to reduce or eliminate storm water pollution.
s 2. This general permit shall regulate pollutants in discharges
.» of storm water associated with construction activity (storm
water discharges) except from those areas on Indian lands,
the Lake Tahoe Hydrologic Unit, and where the storm water
discharge is determined ineligible for coverage under this
general permit by the California Regional Water Quality
Control Boards (Regional Water Boards). Attachment 1
contains addresses and telephone numbers of each Regional
Water Board office.
3. 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
separate storm sewer systems or other watercourses within
their jurisdiction, as allowed by State and Federal law.
In a recent ruling, the Ninth Circuit Court of Appeals invalidated the
exemption granted by USEPA for storm water discharges from soil disturbances
less than five acres but remanded to USEPA for further action. This general
permit may be reopened, as necessary, to accommodate a redefinition of the
•J types of storm water discharges that must be permitted.
-2-
4. To obtain authorization for current and future storm water
discharges pursuant to this general permit, the owner of a
site where construction activity occurs (discharger) must
submit a Notice of Intent (NOI) and appropriate fee to the
State Water Board. Dischargers who submit a NOI and
appropriate fee are authorized to discharge storm water
under the terms and conditions of this general permit.
5. If an individual NPDES permit is issued to a discharger
otherwise subject to this general permit, or an alternative
general permit is subsequently adopted which covers storm
water discharges regulated by this general permit, the
applicability of this general permit to such discharges is
automatically terminated on the effective date of the
individual permit or the date of approval for coverage under
the subsequent general permit.
6. This action to adopt a NPDES permit is exempt from the
provisions of the California Environmental Quality Act
(Public Resources Code Section 21100, et seq.), in
accordance with Section 13389 of the California Water Code.
7. The State Water Board adopted the California Ocean Plan on
March 22, 1990 and the California Inland Surface Waters Plan
and Enclosed Bays and Estuaries Plan on April 11, 1991. In
addition, the Regional Water Boards have adopted and the
State Water Board has approved Water Quality Control Plans
(Basin Plans). Dischargers regulated by this general permit
must comply with the water quality standards in these Plans
and subsequent amendments thereto.
8. It is not feasible at this time to establish numeric
effluent limitations for pollutants in storm water
discharges from construction activities. Instead, the
provisions of this general permit that require
implementation of Best Management Practices (BMPs) to
control and abate the discharge of pollutants in storm water
discharges constitute compliance with BAT/BCT requirements
and with requirements to achieve water quality standards.
9. Discharges of non-storm water may be necessary for the
practical performance and completion of certain construction
projects. Such discharges include, but are not limited to:
landscape irrigation of erosion control measures, pipe
flushing and testing, street washing, and dewatering. Such
discharges are allowed under this general permit so long as
they comply with BMPs as described in the Storm Water
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Pollution Prevention Plan and they do not cause or
contribute to violation of any water quality standard.
10. Following adoption of this general permit, the Regional
Water Boards shall enforce the provisions of this general
permit including the monitoring and reporting requirements.
11. Following public notice in accordance with State and Federal
laws and regulations, the State Water Board in a public
meeting held May 14, 1992 heard and considered all comments.
The State Water Board has prepared written responses to all
significant comments.
12. This Order is a NPDES permit in compliance with Section 402
of the Clean Water Act (CWA) and shall take effect upon
adoption by the State Water Board.
13. This general permit does not authorize discharges of fill or
dredged material regulated by the U.S. Army Corps of
Engineers under CWA Section 404 and does not constitute a
waiver of water quality certification under CWA Section 401.
IT IS HEREBY ORDERED that all dischargers who file a Notice of
Intent (NOI) indicating their intention to be regulated under the
provisions of this general permit shall comply with the
following:
A. DISCHARGE PROHIBITIONS:
1. Discharges of material other than storm water, which are
not otherwise regulated by a NPDES permit, to a separate
storm sewer system or waters of the nation are prohibited,
except as allowed in Provision C.3.
2. Storm water discharges shall not cause or threaten to
cause pollution, contamination, or nuisance.
3. Storm water discharges regulated by this general permit
shall not contain a hazardous substance equal to or in
excess of a reportable quantity listed in 40 CFR Part 117
and/or 40 CFR Part 302.
B. RECEIVING WATER LIMITATIONS:
1. Storm water discharges to any surface or ground water
shall not adversely impact human health or the
environment.
-4-
2. Storm water discharges shall not cause or contribute to a
violation of any applicable water quality standards
contained in the California Ocean Plan, Inland Surface
Waters Plan, Enclosed Bays and Estuaries Plan, or the
applicable Regional Water Board's Basin Plan.
C. SPECIAL PROVISIONS FOR CONSTRUCTION ACTIVITY:
1. All dischargers must file a NOI and appropriate fee for
construction activities conducted at each site as required
by Attachment 2: Notice of Intent—General Instructions.
2. All dischargers must develop and implement a Storm Water
Pollution Prevention Plan in accordance with Section A:
Storm Water Pollution Prevention Plan (SWPPP).
3. Discharges of non-storm water are allowed only when
necessary for performance and completion of construction
projects and where they do not cause or contribute to a
violation of any water quality standard. Such discharges
must be described in the SWPPP. Wherever feasible,
alternatives which do not result in discharge of non-storm
water shall be implemented, in accordance with Section A.7
of the SWPPP requirements.
4. All dischargers must develop and implement a monitoring
program and reporting plan in accordance with Section B:
Monitoring Program and Reporting Requirements.
5. All dischargers must comply with the lawful requirements
of municipalities, counties, drainage districts, and other
local agencies regarding discharges of storm water to
separate storm sewer systems or other watercourses under
their jurisdiction, including applicable requirements in
municipal storm water management programs developed to
comply with NPDES permits issued by the Regional Water
Boards to local agencies.
6. All dischargers must comply with the standard provisions
and reporting requirements contained in Section C:
Standard Provisions.
-5-
7. The discharger may revoke (cancel) coverage under this
general permit by submitting to the State Water Board
certification, in accordance with the signatory
requirements of Section C: Standard Provisions, Items 9
and 10, that construction activity has been completed,
that all elements of the SWPPP have been completed, that
construction and equipment maintenance waste have been
disposed of properly, that the site is in compliance with
all local storm water management requirements including
erosion/sediment control requirements, policies, and
guidelines. In addition, a discharger may revoke
(cancel) coverage under this general permit when ownership
of all or a portion of the project has been transferred.
The new owner must comply with the provisions of Section
A(2)(c) and B(3)(b) of this general permit. The
revocation should accompany the NOI from the new owner
when possible.
8. This general permit will expire on August 20, 1997. Upon
reissuance of a NPDES general permit by the State Water
Board, dischargers subject to the reissued general permit
may be required to file a revised NOI.
D. REGIONAL WATER BOARD AUTHORITIES:
1. Following adoption of this general permit, Regional Water
Boards shall:
a. Implement the provisions of this general permit.
Implementation of this general permit may include, but
is not limited to, reviewing SWPPPs, reviewing
monitoring reports, conducting compliance inspections,
and taking enforcement actions.
b. Issue permits as them deem appropriate to individual
dischargers, categories of dischargers, or dischargers
in a geographic area. Upon issuance of such permits by
a Regional Water Board, the affected dischargers shall
no longer be regulated by this general permit.
2. Regional Water Boards may provide guidance to dischargers
on SWPPP and Monitoring Program implementation.
3. Regional Water Boards may require dischargers to retain
records for more than three years.
4. Regional Water Boards may require additional monitoring
-6-
and reporting program requirements,
-7-
CERTIFICATTON
The undersigned, Administrative Assistant to the State Water
Board, does hereby certify that the foregoing is a full, true,
and correct copy of an order duly and regularly adopted at a
meeting of the State Water Resources Control Board held on August
20, 1992.
AYE: W. Don Maughan
Eliseo M. Samaniego
Marc Del Piero
James M. Stubchaer
NO: None
ABSENT: John Caffrey
r
ABSTAIN: None
/s/
Maureen Marche'
Administrative Assistant to the Board
J
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Section A: STORM WATER POLLUTION PREVENTION PLAN
1. ObjecrM
A Storm Water Pollution Prevention Plan (SWPPP) shall be
developed and implemented for each construction site covered
by this general permit. The SWPPP shall be certified in
accordance with the signatory requirements of Standard
Provision C.9. The SWPPP shall be developed and amended,
when necessary, to meet the following objectives:
a. To identify pollutant sources that may affect the quality
of discharges of storm water associated with construction
activity (storm water discharges) from the construction
site, and
b. To identify, construct, and implement storm water
pollution prevention measures (control practices) to
reduce pollutants in storm water discharges from the
construction site both during construction and after
construction is completed.
2 . Tmpl emen-hat-.i on Schedule
a. For construction activity commencing on and after October
1, 1992, the SWPPP must be developed and implemented
concurrent with commencement of construction activities.
b. For construction activity commencing prior to and
continuing beyond October 1, 1992, the SWPPP must be
developed and implemented by October 1, 1992.
c. For ongoing construction activity involving a change of
ownership of property covered by this general permit, the
new owner must accept and maintain the existing SWPPP.
3 . Avail abi 1 i t-.y
The SWPPP shall be kept on site during construction activity
and made available upon request of a representative of the
Regional Water Board and/or local agency.
4. Required rhangea
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a. The discharger shall amend the SWPPP whenever there is a
change in construction or operations which may affect the
discharge of significant quantities of pollutants to
surface waters, ground waters, or a municipal separate
storm sewer system. The SWPPP should also be amended if
it is in violation of any condition of this general
permit or has not achieved the general objective of
reducing pollutants in storm water discharges.
b. The Regional Water Board, or local agency with the
concurrence of the Regional Water Board, may require the
discharger to amend the SWPPP.
5. SoiiTne Tderrh j f i nati on
The SWPPP shall provide a description of potential sources
which are likely to add significant quantities of pollutants
to storm water discharges or which may result in non-storm
water discharges from the construction site. The SWPPP
shall include, at a minimum, the following items:
a. A map extending approximately one-quarter mile beyond the
property boundaries of the construction site showing:
the construction site, surface water bodies (including
known springs and wetlands ) , known wells, an outline of
off-site drainage areas that discharge into the
construction site, general topography, and the
anticipated discharge location(s) where the construction
site's storm water discharges to a municipal storm sewer
system or other water body. The requirements of this
paragraph may be included in the site map required under
the following paragraph if appropriate.
b. A site map(s) showing:
i. Location of control practices used during
construction;
ii. Areas used to store soils and wastes;
iii. Areas of cut and fill;
iv. Drainage patterns and slopes anticipated after major
grading activities are completed;
nThe determination of whether wetlands exist shall be made by the person
who prepares the SWPPP and shall not be binding upon any other person.
v. Areas of soil disturbance;
vi. Surface water locations;
vii. Areas of potential soil erosion where control
practices will be used during construction;
viii. Existing and planned paved areas and buildings;
ix. Locations of post-construction control practices;
x. An outline of the drainage area for each on-site
storm water discharge point;
xi. Vehicle storage and service areas; and
xii. Areas of existing vegetation.
c. A narrative description of the following:
i. Toxic materials that are known to have been treated,
stored, disposed, spilled, or leaked in significant
quantities onto the construction site;
ii. Practices to minimize contact of construction
materials, equipment, and vehicles with storm water;
iii. Construction material loading, unloading, and access
areas;
iv. Preconstruction control practices (if any) to reduce
sediment and other pollutants in storm water
discharges;
v. Equipment storage, cleaning, and maintenance areas;
vi. Methods of on-site storage and disposal of
construction materials; and
vii. The nature of fill material and existing data
describing the soil on the construction site.
d. A list of pollutants (other than sediment) that are
likely to be present in storm water discharges in
significant quantities. Describe the control practices
(if different from Item 6 below) appropriate to reduce
J
-9-
these pollutants in the storm water discharges.
e. An estimate of the size of the construction site (in
acres or square feet), an estimate of the runoff
coefficient of the construction site before and after
construction, and an estimate of the percentage of the
area of the construction site that is impervious (e.g.,
pavement, buildings, etc.) before and after construction.
f. A copy of the NOI.
6. Erosion and Sediment Control
The SWPPP shall include:
a. A description of soil stabilization practices. These
practices shall be designed to preserve existing
vegetation where feasible and to revegetate open areas as
soon as feasible after grading or construction. In
developing these practices, the discharger shall
consider: temporary seeding, permanent seeding,
mulching, sod stabilization, vegetative buffer strips,
protection of trees, or other soil stabilization
practices. At a minimum, the operator must implement
these practices on all disturbed areas during the rainy
season.
b. A description or illustration of control practices which,
to the extent feasible, will prevent a net increase of
sediment load in storm water discharge. In developing
control practices, the discharger shall consider a full
range of erosion and sediment controls such as detention
basins, straw bale dikes, silt fences, earth dikes, brush
barriers, velocity dissipation devices, drainage swales,
check dams, subsurface drain, pipe slope drain, level
spreaders, storm drain inlet protection, rock outlet
protection, sediment traps, temporary sediment basins, or
other controls. At a minimum, sandbag dikes, silt
fences, straw bale dikes, or equivalent controls
practices are required for all significant sideslope and
downslope boundaries of the construction area. The
discharger must consider site-specific and seasonal
conditions when designing the control practices.
c. Control practices to reduce the tracking of sediment onto
public or private roads. These public and private roads
shall be inspected and cleaned as necessary.
-10-
d. Control practices to reduce wind erosion.
7. Non-Storm Water Management
The SWPPP shall include provisions which eliminate or reduce
to the extent feasible the discharge of materials other than
storm water to the storm sewer system and/or receiving
waters. Such provisions shall ensure, to the extent
feasible, that no materials are discharged in quantities
which will have an adverse effect on receiving waters.
Materials other than storm water that are discharged shall
be listed along with the estimated quantity of the
discharged material.
8. Post-Construction Storm Water Management
The SWPPP shall describe the control practices to reduce
pollutants in storm water discharges after all construction
phases have been completed at the site. These must be
consistent with all local post-construction storm water
management requirements, policies, and guidelines. The
discharger must consider site-specific and seasonal
conditions when designing the control practices. Operation
and maintenance of control practices after construction is
completed shall be addressed, including short- and long-term
funding sources and the responsible party.
9. Waste Management and Disposal
All wastes (including equipment maintenance waste) disposed
at the site or removed from the site for disposal shall be
disposed of in compliance with Federal, State, and local
laws, regulations, and ordinances.
10 . Maintenannp, TnspAntion, and Repair
The SWPPP shall include maintenance, inspections, and repair
procedures to ensure that all grade surfaces, walls, dams
and structures, vegetation, erosion and sediment control
measures, and other protective devices identified in the
site plan are maintained in good and effective condition and
are promptly repaired or restored.
11. Tra j ni ng
The SWPPP shall include procedures to ensure that all
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inspections required in Section B.4 of the Monitoring
Program and Reporting Requirements of this general permit
and maintenance and repair required in Paragraph 10 of this
Section are done by trained personnel.
12 . List of Contractors/Subcontractors
The SWPPP shall include a list of all contractors (or
subcontractors) responsible for implementing the SWPPP.
13. Other Plane;
This SWPPP may incorporate, by reference, the appropriate
elements of other plans required by local, State, or Federal
agencies. A copy of any requirements incorporated by
reference shall be kept at the construction site.
14 . Publi c Access
The SWPPP is considered a report that shall be available to
the public under Section 308(b) of the CWA. Upon request by
members of the public, the discharger shall make available
for review a copy of the SWPPP either to the Regional Water
Board or directly to the requester.
15. Preparer
The SWPPP shall include the signature and title of the
person responsible for preparation of the SWPPP and include
the date of initial preparation and each amendment, thereto.
Section B: MONITORING PROGRAM AND REPORTING REQUIREMENTS
1. General
Dischargers are required to conduct inspections before and
after storm events and to annually certify that they are in
compliance with the general permit and their SWPPP. Other
than reporting incidents of noncompliance, dischargers are
not required to submit reports or certifications.
2. Required Changes
The Regional Water Board may require the discharger to
conduct additional site inspections, submit reports and
certifications, or to perform sampling and analysis.
-12-
3 . Tmpl ^mentation
a. The requirements of this Section shall be implemented by
October 1, 1992 or commencement of the construction
activity. The discharger is responsible for implementing
these requirements until construction activity is
complete.
b. For ongoing construction activity involving a change in
ownership of property covered by this general permit, the
new owner must implement the requirements of this Section
concurrent with the change of ownership.
4. Site Inspections
Dischargers shall conduct inspections of the construction
site prior to anticipated storm events and after actual
storm events to identify areas contributing to a discharge
of storm water associated with construction activity and to
evaluate whether control practices to reduce pollutant
loadings identified in the SWPPP are adequate and properly
implemented in accordance with the terms of the general
permit or whether additional control practices are needed.
A record of the inspections must include the date of the
inspection, the individual(s) who performed the inspection,
and the observations.
5. Compliance Certification
Each discharger must annually certify that its construction
activity is in compliance with the requirements of this
general permit and its SWPPP. This certification should be
based upon the site inspections required in Paragraph 4 of
this Section. The first certification must be completed by
July 1, 1993, and each July 1 thereafter.
6. Noncompliance Reporting
Dischargers who cannot certify compliance, in accordance
with Paragraph 5 of this Section and/or who have had other
instances of noncompliance, must notify the appropriate
Regional Water Board. The notifications shall identify the
type(s) of noncompliance, describe the actions necessary to
achieve compliance, and include a time schedule, subject to
the modifications by the Regional Water Board, indicating
when compliance will be achieved. Noncompliance
notifications must be submitted within 30 days of
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identification of noncompliance.
7. Monitoring Records
Records of all inspections, compliance certifications, and
noncompliance reporting must be retained for a period of at
least three years. With the exception of noncompliance
reporting, dischargers are not required to submit these
records.
Section C: STANDARD PROVISIONS FOR CONSTRUCTION ACTIVITY
1. Duty to Comply
The discharger must comply with all of the conditions of
this general permit. Any permit noncompliance constitutes a
violation of the CWA and the Porter-Cologne Water Quality
Control Act and is grounds for enforcement action and/or
removal from general permit coverage.
The discharger shall comply with effluent standards or
prohibitions established under Section 307(a) of the CWA for
toxic pollutants within the time provided in the regulations
that establish these standards or prohibitions, even if this
general permit has not yet been modified to incorporate the
requirement.
2. General Permit Actions
This general permit may be modified, revoked and reissued,
or terminated for cause. The filing of a request by the
discharger for a general permit modification, revocation and
reissuance, or termination, or a notification of planned
changes or anticipated noncompliance does not stay any
general permit condition.
If any toxic effluent standard or prohibition (including any
schedule of compliance specified in such effluent standard
or prohibition) is promulgated under Section 307(a) of the
Clean Water Act for a toxic pollutant which is present in
the discharge and that standard or prohibition is more
stringent than any limitation on the pollutant in this
general permit, this general permit shall be modified or
revoked and reissued to conform to the toxic effluent
standard or prohibition; and the dischargers so notified.
3. Need to Halt or Reduce Activity Not a Defense
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It shall not be a defense for a discharger in an enforcement
action that it would have been necessary to halt or reduce
the permitted activity in order to maintain compliance with
the conditions of this general permit.
4. Duty to Mitigate
The discharger shall take all responsible steps to minimize
or prevent any discharge in violation of this general permit
which has a reasonable likelihood of adversely affecting
human health or the environment.
5. Proper Operation and Maintenance
The discharger shall at all times properly operate and
maintain any facilities and systems of treatment and control
(and related appurtenances) which are installed or used by
the discharger to achieve compliance with the conditions of
this general permit and with the requirements of storm water
pollution prevention plans. Proper operation and
maintenance also includes adequate laboratory controls and
appropriate quality assurance procedures. Proper operation
and maintenance may require the operation of backup or
auxiliary facilities or similar systems, installed by a
discharger when necessary to achieve compliance with the
conditions of this general permit.
6. 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 any infringement of Federal, State, or local
laws or regulations.
7. Duty to Provide Information
The discharger shall furnish the Regional Water Board, State
Water Board, or USEPA, within a reasonable time, any
requested information to determine compliance with this
general permit. The discharger shall also furnish, upon
request, copies of records required to be kept by this
general permit.
8. Inspection and Entry
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The discharger shall allow the Regional Water Board, State
Water Board, USEPA, and/or, in the case of construction
sites which discharge through a municipal separate storm
sewer, an authorized representative of the municipal
operator of the separate storm sewer system receiving the
discharge, upon the presentation of credentials and other
documents as may be required by law, to:
a. Enter upon the discharger's premises at reasonable times
where a regulated construction activity is being
conducted or where records must be kept under the
conditions of this general permit;
b. Have access to and copy at reasonable times, any records
that must be kept under the conditions of this general
permit;
c. Inspect at reasonable times the construction site and the
related erosion/ sediment controls; and
d. Sample or monitor at reasonable times for the purpose of
ensuring general permit compliance.
9. Signatory Requirements
- a. All Notices of Intent submitted to the State Water Board
shall be signed as follows:
1. For a corporation: by a responsible corporate
officer. For the purpose of this section, a
responsible corporate officer means: (a) a president,
secretary, treasurer, or vice president of the
corporation in charge of a principal business
function, or any other person who performs similar
policy or decision-making functions for the
corporation, or (b) the manager of the construction
activity 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: by a
general partner or the proprietor, respectively; or
3. For a municipality, State, Federal, or other public
agency: by either a principal executive officer,
ranking elected official, or duly authorized
representative. The principal executive officer of a
j
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Federal agency includes the chief executive officer of
the agency or the senior executive officer having
responsibility for the overall operations of a
principal geographic unit of the agency (e.g.,
Regional Administrators of USEPA).
b. All storm water pollution prevention plans, reports,
certifications, or other information required by the
general permit and/or requested by the Regional Water
Board, State Water Board, USEPA, or the local storm water
management agency shall be signed by a person described
above or by a duly authorized representative. A person
is a duly authorized representative if:
1. The authorization is made in writing by a person
described above and retained as part of the SWPPP;
2. The authorization specifies either an individual or a
position having responsibility for the overall
operation of the construction activity, such as the
position of manager, operator, superintendent, or
position of equivalent responsibility, or an
individual or position having overall responsibility
for environmental matters for the company. (A duly
authorized representative may thus be either a named
individual or any individual occupying a named
position.); and
3. If an authorization is no longer accurate because a
different individual or position has responsibility
for the overall operation of the construction
activity, a new authorization must be attached to the
SWPPP prior to submittal of any reports, information,
or certifications to be signed by the authorized
representative.
10. Certification
Any person signing documents under Provision 8 shall make
the following certification:
"I certify under penalty of law that this document and
all attachments were prepared under my direction or
supervision in accordance with a system designed to
assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry
of the person or persons who manage the system or those
-17-
persons directly responsible for gathering the
information, the information submitted is to the best of
my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for
submitting false information, including the possibility
of fine and imprisonment for knowing violations."
11. Anticipated Noncompliance
The discharger will give advance notice to the Regional
Water Board and local storm water management agency of any
planned changes in the construction activity which may
result in noncompliance with general permit requirements.
12. Penalties for Falsification of Reports
Section 309(c)(4) of the CWA provides that any person who
knowingly makes any false material statement,
representation, or certification in any record or other
document submitted or required to be maintained under this
general permit, including reports of compliance or
noncompliance shall, upon conviction, be punished by a fine
of not more than $10,000 or by imprisonment for not more
than two years or by both.
13. Oil and Hazardous Substance Liability
Nothing in this general permit shall be construed to
preclude the institution of any legal action or relieve the
discharger from any responsibilities, liabilities, or
penalties to which the discharger is or may be subject under
Section 311 of the CWA.
14. Severability
The provisions of this general permit are severable, and, if
any provision of this general permit or the application of
any provision of this general permit to any circumstance is
held invalid, the application of such provision to other
circumstances and the remainder of this general permit shall
not be affected thereby.
15. Reopener Clause
This general permit may be modified, revoked and reissued,
or terminated for cause due to promulgation of amended
regulations, receipt of USEPA guidance concerning regulated
-18-
activities, judicial decision, or in accordance with 40 CFR
122.62, 122.63, 122.64, and 124.5.
16. Penalties for Violations of Permit Conditions
a. Section 309 of the CWA provides significant penalties for
any person who violates a permit condition implementing
Sections 301, 302, 306, 307, 308, 318, or 405 of the CWA
or any permit condition or limitation implementing any
such section in a permit issued under Section 402. Any
person who violates any permit condition of this general
permit is subject to a civil penalty not to exceed
$25,000 per day of such violation, as well as any other
appropriate sanction provided by Section 309 of the CWA.
b. The Porter-Cologne Water Quality Control Act also
provides for civil and criminal penalties which in some
cases are greater than those under the CWA.
17. Availability
A copy of this general permit shall be maintained at the
construction site during construction activity and be
available to operating personnel.
18. Transfers
This general permit is not transferable. A new owner of an
ongoing construction activity must submit a NOI in
accordance with the requirements of this general permit to
be authorized to discharge under this general permit. An
owner who sells property covered by this general permit
shall inform the new owner of the duty to file a NOI and
shall provide the new owner with a copy of this general
permit.
19. Continuation of Expired Permit
This general permit continues in force and effect until a
new general permit is issued or the State Water Board
rescinds this general permit. Only those dischargers
authorized to discharge under the expiring general permit
are covered by the continued general permit.
Attachment 2
NOTICE OF INTENT (NOI) TO COMPLY WITH THE TERMS
OF THE GENERAL PERMIT TO DISCHARGE STORM WATER
ASSOCIATED WITH CONSTRUCTION ACTIVITY
GENERAL INSTRUCTIONS
Who Must Submit
Discharges of storm water associated with construction activity
(storm water discharges) that results in the disturbance of five
acres or more of total land area or which is a part of a larger
common area of development or sale must be permitted.
Construction activity includes clearing, grading, excavation, and
reconstruction of existing facilities involving removal and
replacement. Construction activity does not include routine
maintenance maintain original line and grade, hydraulic capacity,
or original purpose of the facility.
The owner of the land where the construction activity is
occurring is responsible for obtaining a permit. Owners may
obtain coverage under the General Storm Water Permit to Discharge
Storm Water Associated With Construction Activity (General
Permit) by filing a NOI in accordance with the following
instructions. Coverage for construction activity conducted on
easements (e.g., pipeline construction), or on nearby properties
by agreement or permission, shall be obtained by the entity
responsible for the construction activity.
Construction Activity Not Covered By This General Permit
Storm water discharges in the Lake Tahoe Hydrologic Unit will be
regulated by a separate permit(s) adopted by the California
Regional Water Quality Control Board, Lahontan Region, and may
not seek coverage under the State Water Board's general permit.
Storm water discharges on Indian lands will be regulated by the
U.S. Environmental Protection Agency.
Where to Apply
The NOI should be mailed to the State Water Resources Control
Board at the following address:
State Water Resources Control Board
Division of Water Quality
Attn: Storm Water Permit Unit
P.O. Box 1977
Sacramento, CA 95812-1977
-2-
ffhen to Apply
Owners of ongoing construction must file a NOI, along with the
appropriate annual fee, by September 30, 1992. Owners of new
construction (those beginning construction after September 30,
1992) must file a NOI prior to the commencement of construction.
For ongoing construction activity involving a change of
ownership, the new owner must submit a new NOI within 30 days of
the date of change of ownership. Preferably, the NOI should be
sent with the revocation prepared by the previous owner.
The current annual fee is $250.00 for each construction site
which discharges into a municipal separate storm sewer system
regulated by an areawide urban storm water permit and $500.00 for
all other construction sites.
Completing the NOT
Completion and submittal of the attached NOI (Form NOI-2) is
required to gain coverage under the general permit. It must be
completely and accurately filled out. A construction site will
be considered to be covered by the general permit upon filing a
complete and accurate NOI and submitting the appropriate annual
fee. Upon receipt of the NOI and fee, each discharger will be
sent a letter containing the discharger's identification number.
Questions?
If you have any questions on completing the NOI after reading the
following line-by-line instructions, please call us at
(916) 657-1146.
NOT-'LTNE-'RY-LTNE INSTRUCTIONS
The NOI consists of two parts — a NOI Form (Form NOI-2) and a site
map. Please type or print when completing the NOI Form and site
map.
Mark one of the three boxes at the top portion of the NOI. Check
box 1 if the NOI is being completed for ongoing construction, box
2 if the construction site is new (commencing on or after October
1, 1992) , and box 3 if the NOI is being submitted to report
changes for a construction site already covered by the general
permit. An example of a change that warrants a resubmittal of
the NOI would be a change of ownership of the construction site.
-3-
Complete only those portions of the NOI that apply to the
changes (the NOI must always be signed). If box 3 is checked,
the WDID No. must be included.
SECTION I—OWNER
Enter the owner of the construction site's official or legal
name, address, contact person, and contact person's title and
telephone number.
SECTION II—CONSTRUCTION SITE INFORMATION
In Part A, enter the name of the developer (or general
contractor), official, or legal name, address, contact person,
and contact person's title and telephone number. The contact
person should be the construction site manager completely
familiar with the construction site and charged with compliance
and oversight of the general permit.
In Part B, enter the address, county, and telephone number (if
any) of the construction site. Construction sites that do not
have a street address must attach to the NOI a legal description
of the construction site.
In Part C, indicate whether the construction site is part of a
larger common plan of development or sale. For example, indicate
yes if the construction activity is occurring on a two-acre site
within an industrial park development of greater than five acres.
If the construction site is part of a larger common plan of
development or sale, name the common plan (e.g., XYZ Estates, ABC
Industrial Park).
In Part D, indicate the construction commencement date (month,
day, year). When there is a change in ownership of the property
that requires a new NOI, the construction commencement date
should be the date of the change in ownership.
In Part E, indicate when the construction is expected to be
completed.
SECTION III—BILLING ADDRESS
To continue coverage under the general permit, the annual fee
must be paid. Use this section to indicate whether the annual
fee invoices should be sent to the owner, developer, or other
party (include address).
-4-
SECTION IV—RECEIVING WATER INFORMATION
In Part A of this section, the owner is required to indicate
whether the construction site's storm water runoff discharges to
a separate storm sewer system, directly to waters of the United
States, or indirectly to waters of the United States.
Discharges to separate storm sewer systems are those that
discharge to a collection system operated by municipalities,
flood control districts, utilities, or similar entities. Storm
water discharges directly to waters of the United States will
typically have an outfall structure directly from the facility to
a river, creek, ocean, etc. Indirect discharges are those that
may flow over adjacent properties or rights-of-way prior to
discharging to waters of the United States.
Regardless of point of discharge, the owner must determine the
closest receiving water for the construction site's storm water
discharge. If discharge is to a separate storm sewer system, the
owner of that system should know the receiving water. The name
of the receiving water of a direct discharge should be easily
available while the receiving water of an indirect discharge may
require some effort to identify.
SECTION V—TYPE OF CONSTRUCTION
Indicate the type of construction taking place. Transportation
should be checked for the construction of roads. Utility should
be checked for installation of sewer, electric, and telephone
systems.
SECTION VI—MATERIAL HANDLING/MANAGEMENT PRACTICES
Part A of this section requires identification of the type(s) of
materials stored and handled outdoors. If materials other than
those listed are maintained on site, please check "other" and
describe the type of material.
Part B of this section requests information on proposed
management practices to reduce pollutants in storm water
discharges. Check the appropriate categories or list other
control measures you will use at your construction site.
SECTION VII-SITE INFORMATION
List the site, in acres, of the facility and the percentage of
the site that is impervious before construction and after
-5-
construction is completed.
SECTION VIII — REGULATORY STATUS
Indicate whether the construction site's erosion/sediment control
plan must be reviewed and approved by a local agency. If yes,
identify the name of the local agency.
SECTION IX — CERTIFICATION
This section must be completed by the owner of the construction
site. The certification provides for assurances that the NOI and
site map were completed in an accurate and complete fashion and
with the knowledge that penalties exist for providing false
information. It also requires the owner to certify that the
provisions in the general permit will be complied with.
The NOI must be signed by:
For a corporation: a responsible corporate officer (or authorized
individual) .
For a partnership or sole proprietorship: a general partner or
the proprietor, respectively.
For a municipality, State, Federal, or other public agency:
either a principal executive officer, ranking elected official,
or duly authorized representative.
SITE MAP
Provide a "to scale" drawing of the construction site and its
immediate surroundings. Include as much detail about the
construction site as possible. At a minimum, show existing and
proposed buildings, roadways, storm water collection and
discharge points, a north arrow, and the names of adjacent
streets.
J
APPENDIX C
EMPLOYEE TRAINING ATTENDANCE RECORD
«,
APPENDIX C
EMPLOYEE TRAINING ATTENDANCE RECORD
Date:
Training Topic:
Signature
-
Print Name
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Page C-l
APPENDIXD
NON-STORM WATER DISCHARGE VISUAL INSPECTION RECORD
APPENDIX D
NON-STORM WATER DISCHARGE VISUAL OBSERVATION RECORD
Facility
Inspected By:_
Signature:
Date/Time:
Facility:
STORAGE AREAS-DA-001:
Are potential pollutants stored
within secondary containment
structures?
Are there leaks or stains around
containment structures?
Are potential pollutants exposed to
storm water contact?
Are oily parts and/or potential
pollutants exposed to storm water
contact?
Are potential pollutants properly
stored beneath covered areas?
Are areas around waste containers
clean?
J
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Page D-l
APPENDIXE
WET SEASON VISUAL OBSERVATION RECORD
j,:^;?^-."fiK-Mv^A:
J
APPENDIX E
WET SEASON VISUAL OBSERVATION RECORD
(Month)
Facility:
Date:
Facility Operating Hours:
Inspected By:
Signature:
(Year) 19
Facility
Time:
Approximate Date/Time Storm Water Discharge Began:
Time
Able to perform observation during first hour of discharge: Yes
If NO, provide an explanation why observation could not be made:
(For example, not within daylight hours, after operating hours)
Date
No
Issue Being Evaluated
OUTFALL— OF-001:
Clean of debris (paper, leaves,
etc.)?
DISCHARGE WATER:
Turbidity-
Oil & Grease
Floating Material
Odor
Discoloration
Yes No N/A Comments
{Stains, Odors, Leaks, Trash & Debris)
Circle One
Clear
Clear
No
No
No
Cloudy
Discontinuous
Muddy
Continuous
Yes — If yes, describe material.
Yes — If yes, describe (i.e. petroleum, sewage, etc.).
Yes — If yes, describe color.
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Page E-l
APPENDIX F
ANNUAL SITE COMPLIANCE EVALUATION
VtVv,"!-.'-.
•iW^f.
J
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ffl. SITE INSPECTION—STORM WATER MANAGEMENT CONTROLS
Referring to SWPPP Table 5.1 (Sources), inspect the facility using the following questions:
1. Are Preventive Maintenance activities being implemented and documented in Appendices D and E?
(Catch basins cleaned twice a year, parking areas cleaned early September, etc.) Yes / No
If no, indicate reason: ________
2. Are Housekeeping activities being implemented? (Cover trash bins, wipe-up drips and spills, drip pans under
leaking vehicles, minimize recycled material storage, clean oily parts before storing outside, etc.) Yes / No
If no, indicate reason:
3. Are special Storm Water Management Controls being implemented? (Site-specific: Sediment erosion, curbs,
spill prevention, etc.) Yes / No
If no, indicate reason:
4. Have Spill Prevention and Response Procedures been implemented, and is spill prevention equipment
operational and ready? (Secondary containment, personnel training, inspection of chemical storage areas, etc.)Yes / No
. If no, indicate reason:
5. Have Sediment Erosion Controls been implemented? Yes / No
If no, indicate reason:
6. Are there any additional storm water controls recommended as a result of the site inspection? Yes / No
If yes, describe here:
IV. UPDATE STORM WATER POLLUTION PREVENTION AND MONITORING PLAN (SWPPP)
1. Have all updates been made to the SWPPP, re-signed, and old pages filed in Appendix G? Yes / No
If no, indicate reason:
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APPENDIX G
NOTICE OF NONCOMPLIANCE
.J
STORM WATER POLLUTION PREVENTION PLAN
WASTE DISCHARGE IDENTIFICATION NO.
California Regional Water Quality Control Board
San Diego Region
9771 Clairemont Mesa Boulevard, Suite B
San Diego, California 92124
NOTICE OF NONCOMPLIANCE
Date of noncompliance:
Details of noncompliance:
Actions to achieve compliance:
Time schedule for achieving compliance:
I further 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, the information submitted is to the best of my knowledge and belief, true,
accurate and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations.
By: Date:
cc: SWPPP Section 9
I
'I
APPENDIXH
RECORD RETENTION AND REPORT PAGE UPDATES
APPENDIX I
GLOSSARY OF TERMS
, i
' >'•-:> -\'O .'•,;. '«'' 'V,'-'-,'.1'. -'..'\':.'
' .-' • -•-•:-. ' ,'f'
J
APPENDIX I
GLOSSARY OF TERMS
Backfill: Earth used to fill a trench or an excavation.
Berm: An earthen mound used to direct the flow of runoff around or through a structure.
Best Management Practice (BMP): Schedules of activities, prohibitions of practices, maintenance
procedures, and other management practices to prevent or reduce the pollution of waters of the United
States. BMPs also include treatment requirements, operating procedures, and practices to control
facility site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage.
Conduit: Any channel or pipe for transporting the flow of water.
Conveyance: Any natural or manmade channel or pipe in which concentrated water flows.
Culvert: A covered channel or a large-diameter pipe that directs water flow below the ground level.
CWA: Clean Water Act (formerly referred to as the Federal Water Pollution Control Act or Federal
Water Pollution Control Act Amendments of 1972).
Dike: An embankment to confine or control water, often built along the banks of a river to prevent
overflow of lowlands; a levee.
Director: The Regional Administrator or an authorized representative.
Discharge: A release or flow of storm water or other substance from a conveyance or storage
container.
Erosion: The wearing away of land surface by wind or water. Erosion occurs naturally from weather
or runoff, but can be intensified by land-clearing practices related to farming, residential or industrial
development, road building, or timber-cutting.
Excavation: The process of removing earth, stone, or other materials.
Fertilizer: Materials such as nitrogen and phosphorus that provide nutrients for plants. Commercially
sold fertilizers may contain other chemicals or may be in the form of processed sewage sludge.
Filter Fabric: Textile of relatively small mesh or pore size that is used to (a) allow water to pass
through while keeping sediment out (permeable), or (b) prevent both runoff and sediment from passing
through (impermeable).
Filter Strip: Usually long, relatively narrow area of undisturbed or planted vegetation used to retard
or collect sediment for the protection of watercourses, reservoirs, or adjacent properties.
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Flow Channel Liner: A covering or coating used on the inside surface of a flow channel to prevent
the infiltration of water to the ground.
General Permit: A permit issued under the NPDES program to cover a certain class or category of
storm water discharges. These permits allow for a reduction in the administrative burden associated
with permitting storm water discharges associated with industrial activities. For example, EPA is
planning to issue two general permits: NPDES General Permits for Storm Water Discharges from
Construction Activities that are classified as "Associated with Industrial Activity" and NPDES General
Permits for Storm Water Discharges from Industrial Activities that are classified as "Associated with
Industrial Activities." EPA is also encouraging delegated states that have an approved general permits
program to issue general permits.
Grading: The cutting and/or filling of the land surface to a desired slope or elevation.
Hazardous Substance: 1. Any material that poses a threat to human health and/or the environment.
Hazardous substances can be toxic, corrosive, ignitable, explosive, or chemically reactive. 2. Any
substance required by EPA to be reported if a designated quantity of the substance is spilled in the
waters of the United States or if otherwise emitted into the environment.
Hazardous Waste: A by-product of human activities that can pose a substantial or potential hazard to
human health or the environment when improperly managed. Possesses at least one of four
characteristics (ignitability, corrosivity, reactivity, or toxicity), or appears on special EPA lists.
Holding Pond: A pond or reservoir, usually made of earth, built to store polluted runoff for a limited
time.
Infiltration: 1. The penetration of water through the ground surface into sub-surface soil or the
penetration of water from the soil into sewer or other pipes through defective joints, connections, or
manhole walls. 2. A land application technique where large volumes of wastewater are applied to
land, allowed to penetrate the surface, and percolate through the underlying soil.
Inlet: An entrance into a ditch, storm sewer, or other waterway.
Irrigation: Human application of water to agricultural or recreational land for watering purposes.
Lagoon: A shallow pond where sunlight, bacterial action, and oxygen work to purify wastewater.
Large and Medium Municipal Separate Storm Sewer System: All municipal separate storm sewers
that are either: (i) located in an incorporated place (city) with a population of 100,000 or more as
determined by the latest Decennial Census by the Bureau of Census (these cities are listed in
Appendices F and G of 40 CFR Part 122); or (ii) located in the counties with unincorporated urbanized
populations of 100,000 or more, except municipal separate storm sewers that are located in the
incorporated places, townships, or towns within such counties (these counties are listed in Appendices
H and I of 40 CFR Part 122); or (iii) owned or operated by a municipality other than those described
in paragraph (i) or (ii) and that are designated by the Director as part of the large or medium municipal
separate storm sewer system.
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Leaching: The process by which soluble constituents are dissolved in a solvent such as water and
carried down through the soil.
Material Storage Areas: On-site locations where raw materials, products, final products,
by-products, or waste materials are stored.
Mulch: A natural or artificial layer of plant residue or other materials covering the land surface which
conserves moisture, holds soil in place, aids in establishing plant cover, and minimizes temperature
fluctuations.
Notice of Intent (NOI): An application to notify the permitting authority of a facility's intention to be
covered by a general permit; exempts a facility from having to submit an individual or group
application.
NPDES: EPA's program to control the discharge of pollutants to waters of the United States. See the
definition of "National Pollutant Discharge Elimination System" in 40 CFR 122.2 for further
guidance.
NPDES Permit: An authorization, license, or equivalent control document issued by EPA or an
approved state agency to implement the requirements of the NPDES program.
Oil and Grease Traps: Devices which collect oil and grease, removing them from water flows.
Oil Sheen: A thin, glistening layer of oil on water.
Oil/Water Separator: A device installed, usually at the entrance to a drain, which removes oil and
grease from water flows entering the drain.
Organic Pollutants: Substances containing carbon which may cause pollution problems in receiving
streams.
Organic Solvents: Liquid organic compounds capable of dissolving solids, gases, or liquids.
Outfall: The point, location, or structure where wastewater or drainage discharges from a sewer pipe,
ditch, or other conveyance to a receiving body of water or storm drain system.
Permeability: The quality of soil that enables water or air to move through it. Usually expressed in
inches/hour or inches/day.
Permit: An authorization, license, or equivalent control document issued by EPA or an approved state
agency to implement the requirements of an environmental regulation; e.g., a permit to operate a
waste-water treatment plant or to operate a facility that may generate harmful emissions.
Permit Issuing Authority (or Permitting Authority): The state agency or EPA regional office that
issues environmental permits to regulated facilities.
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Point Source: Any discernible, confined, and discrete conveyance, including but not limited to any
pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated
animal feeding operation, or vessel or other floating craft, from which pollutants are or may be
discharged. This term does not include return flows from irrigated agriculture or agricultural storm
water runoff.
Pollutant: Any dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage,
sewage sludge, munitions, chemical wastes, biological materials, radioactive materials (except those
regulated under the Atomic Energy Act of 1954, as amended (42 [U.S.C. 2011 et seq.]), heat, wrecked
or discharged equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste
discharged into water. It does not mean: (i) Sewage from vessels; or (ii) water, gas, or other material
which is injected into a well to facilitate production of oil or gas, or water derived in association with
oil and gas production and disposed of in a well, if the well used either to facilitate production or for
disposal purposes is approved by the authority of the state in which the well is located, and if the state
determines that the injection or disposal will not result in the degradation of ground or surface water
resources [Section 502(6) of the CWA]. Radioactive materials covered by the Atomic Energy Act are
those encompassed in its definition of source, byproduct, or special nuclear materials. Examples of
materials not covered include radium and accelerator-produced isotopes. See Train v. Colorado Public
Interest Research Group, Inc., 426 U.S. 1 (1976).
Porous Pavement: A human-made surface that will allow water to penetrate through and percolate
into soil (as in porous asphalt pavement or concrete). Porous asphalt pavement is comprised of
irregular shaped crush rock precoated with asphalt binder. Water seeps through into lower layers of
gravel for temporary storage, then filters naturally into the soil.
Precipitation: Any form of rain or snow.
Preventive Maintenance Program: A schedule of inspections and testing at regular intervals intended
to prevent equipment failures and deterioration.
RCRA: Resource Conservation and Recovery Act.
Recycle: The process of minimizing the generation of waste by recovering usable products that might
otherwise become waste; e.g., recycling of aluminum cans, wastepaper, and bottles.
Retention: The holding of runoff in a basin without release except by means of evaporation,
infiltration, or emergency bypass.
Runoff: That part of precipitation, snow melt, or irrigation water that runs off the land into streams
or other surface water. It can carry pollutants from the air and land into the receiving waters.
Sanitary Sewer: A system of underground pipes that carries sanitary waste or process wastewater to a
treatment plant.
Sanitary Waste: Domestic sewage.
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Scour: The clearing and digging action of flowing water, especially the downward erosion caused by
stream water in sweeping away mud and silt from the stream bed and outside bank of a curved
channel.
Secondary Containment: Structures, usually dikes or berms, surrounding tanks or other storage
containers and designed to catch spilled material from the storage containers.
Sediment Trap: A device for removing sediment from water flows; usually installed at outfall points.
Sedimentation: The process of depositing soil particles, clays, sands, or other sediments that were
picked up by flowing water.
Sediments: Soil, sand, and minerals washed from land into water, usually after rain. They pile up in
reservoirs, rivers, and harbors, destroying fish-nesting areas and holes of water animals and cloud the
water so that needed sunlight might not reach aquatic plants. Careless farming, mining, and building
activities will expose sediment materials, allowing them to be washed off the land after rainfalls.
Sheet Erosion: Erosion of thin layers of surface materials by continuous sheets of running water.
Sheetflow: Runoff which flows over the ground surface as a thin, even layer, not concentrated in a
channel.
Significant Materials: Include, but are not limited to: raw materials; fuels; materials such as
solvents, detergents, and plastic pellets; finished materials such as metallic products; raw materials
used in food processing or production; hazardous substances designated under section 101(14) of
CERCLA; any chemical the facility is required to report pursuant to Section 313 of Title III of SARA;
fertilizers; pesticides; and waste products such as ashes, slag, and sludge that have a potential to be
released with storm water discharges [122.26(b)(12)J.
Significant Spills: Include, but are not limited to: releases of oil or hazardous substances in excess of
reportable quantities under Section 311 of the CWA (see 40 CFR 110.10 and CFR 117.21) or Section
102 of CERCLA (see 40 CFR 302.4).
Slag: Non-metal containing waste leftover from the smelting and refining of metals.
Sloughing: The movement of unstabilized soil layers down a slope due to excess water in the soils.
Sludge: A semi-solid residue from any of a number of air or water treatment processes. Sludge can
be a hazardous waste.
Soil: The unconsolidated mineral and organic material on the immediate surface of the earth that
serves as a natural medium for the growth of plants.
Solids Dewatering: A process of removing excess water from solids to lessen the overall weight of
the wastes.
Source Control: A practice or structural measure to prevent pollutants from entering storm water
runoff or other environmental media.
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Spent Solvent: A liquid solution that has been used and is no longer capable of dissolving solids,
gases, or liquids.
Spill Guard: A device used to prevent spills of liquid materials from storage containers.
Spill Prevention Control and Countermeasures Plan (SPCC): Plan consisting of structures, such as
curbing, and action plans to prevent and respond to spills of hazardous substances as defined in the
Clean Water Act.
Storm Drain: A slotted opening leading to an underground pipe or an open ditch for carrying surface
runoff.
Storm Water: Runoff from a storm event, snow melt runoff, and surface runoff and drainage.
Storm Water Discharge Associated with Industrial Activity: The discharge from any conveyance
which is used for collecting and conveying storm water and which is directly related to manufacturing,
processing, or raw materials storage areas at an industrial plant. The term does not include discharges
from facilities or activities excluded from the NPDES program under 40 CFR Part 122. For the
categories of industries identified in subparagraphs (i) through (x) of this subsection, the term includes,
but is not limited to, storm water discharges from industrial plant yards; immediate access roads and
rail lines used or traveled by carriers of raw materials, manufactured products, waste material, or by-
products used or created by the facility; material handling sites; refuse sites; sites used for the
application or disposal of process waste waters (as defined at 40 CFR 401); sites used for the storage
and maintenance of material handling equipment; sites used for residual treatment, storage, or disposal;
shipping and receiving areas; manufacturing buildings; storage areas (including tank farms) for raw
materials, and intermediate and finished products; and areas where industrial activity has taken place in
the past and significant materials remain and are exposed to storm water. For the categories of
industries identified in subparagraph (xi), the term includes only storm water discharges from all the
areas (except access roads and rail lines) that are listed in the previous sentence where material
handling equipment or activities, raw materials, intermediate products, final products, waste material,
by-products, or industrial machinery are exposed to storm water. For the purposes of this paragraph,
material handling activities include the: storage, loading and unloading, transportation, or conveyance
of any raw material, intermediate product, finished product, by-product, or waste product. The term
excludes areas located on plant lands separate from the plant's industrial activities, such as office
buildings and accompanying parking lots as long as the drainage from the excluded areas is not mixed
with storm water drained from the above described areas. Industrial facilities (including industrial
facilities that are Federally, State, or municipally owned or operated that meet the description of the
facilities listed in this paragraph (i)-(xi) include those facilities designated under the provision of
122.26(a)(l)(v). The following categories of facilities are considered to be engaging in "industrial
activity" for purposes of this subsection: (i) facilities subject to storm water effluent limitations
guidelines, new source performance standards, or toxic pollutant effluent standards under 40 CFR
Subchapter N (except facilities with toxic pollutant effluent standards which are excepted under
category (xi) of this paragraph); (ii) facilities classified as Standard Industrial Classifications 24 (except
2434), 26 (except 265 and 267), 28 (except 283 and 285), 29, 311, 32 (except 323), 33, 3441, 372;
(iii) facilities classified as Standard Industrial Classifications 10 through 14 (mineral industry)
including active or inactive mining operations (except for areas of coal mining operations no longer
meeting the definition of a reclamation area under 40 CFR 434.11(1) because the performance bond
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issued to the facility by the appropriate SMCRA authority has been released, or except for areas of
non-coal mining operations which have been released from applicable State or Federal reclamation
requirements after December 17, 1990, and oil and gas exploration, production, processing, or
treatment operations, or transmission facilities that discharge storm water contaminated by contact with
or that has come into contact with, any overburden, raw material, intermediate products, finished
products, byproducts, or waste products located on the site of such operations; (inactive mining
operations are mining sites that are not being actively mined, but which have an identifiable
owner/operator; inactive mining sites do not include sites where mining claims are being maintained
prior to disturbances associated with the extraction, beneficiation, or processing of mined materials,
nor sites where minimal activities are undertaken for the sole purpose of maintaining mining claim);
(iv) hazardous waste treatment, storage, or disposal facilities, including those that are operating under
interim status or a permit under Subtitle C of RCRA; (v) landfills, land application sites, and open
dumps that receive or have received any industrial wastes (waste that is received from any of the
facilities described under this subsection) including those that are subject to regulation under Subtitle D
of RCRA; (vi) facilities involved in the recycling of materials, including metal scrap yards, battery
reclaimers, salvage yards, and automobiles junkyards, including but not limited to those classified as
Standard Industrial Classification 5015 and 5093; (vii) steam electric power generating facilities,
including coal handling sites; (viii) transportation facilities classified as Standard Industrial
Classifications 40, 41, 42 (except 4221-25, 43, 44, 45, and 5171 which have vehicle maintenance
shops, equipment cleaning operations, or airport deicing operations. Only those portions of the facility
that are either involved in vehicle maintenance (including vehicle rehabilitation, mechanical repairs,
painting, fueling, and lubrication), equipment cleaning operations, airport deicing operations, or which
are otherwise identified under paragraphs (i)-(vii) or (ix)-(xi) of this subsection are associated with
industrial activity.; (ix) treatment works treating domestic sewage or any other sewage sludge or waste-
water treatment device or system, used in the storage treatment, recycling, and reclamation of
municipal or domestic sewage, including land dedicated to the disposal of sewage sludge that are
located within the confines of the facility, with a design flow of 1.0 mgd or more, or required to have
an approved pretreatment program under 40 CFR 403. Not included are farm lands, domestic gardens,
or lands used for sludge management where sludge is beneficially reused and which are not physically
located in the confines of the facility, or areas that are in compliance with Section 405 of the CWA; (x)
construction activity including clearing, grading, and excavation activities except: operations that
result in the disturbance of less than five acres of total land area which are not part of a larger common
plan of development or sale; (xi) facilities under Standard Industrial Classification 20, 21, 22, 23,
2434, 25, 265, 267, 27, 283, 285, 30, 31 (except 311), 323, 34 (except 3441), 35, 36, 37 (except
373), 38, 39, 4221-25, (and which are not otherwise included within categories (iii)-(x)).
Note: The Transportation Act of 1991 provides an exemption from storm water permitting
requirements for certain facilities owned or operated by municipalities with a population of less than
100,000. Such municipalities must submit storm water discharge permit applications for only airports,
power plants, and uncontrolled sanitary landfills that they own or operate, unless a permit is otherwise
required by the permitting authority.
Subsoil: The bed or stratum of earth lying below the surface soil.
Sump: A pit or tank that catches liquid runoff for drainage or disposal.
Surface Impoundment: Treatment, storage, or disposal of liquid wastes in ponds.
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Surface Water: All water naturally open to the atmosphere (rivers, lakes, reservoirs, streams,
wetlands impoundments, seas, estuaries, etc.); also refers to springs, wells, or other collectors which
are directly influenced by surface water.
Swale: An elongated depression in the land surface that is at least seasonally wet, is usually heavily
vegetated, and is normally without flowing water. Swales direct storm water flows into primary
drainage channels and allow some of the storm water to infiltrate into the ground surface.
Tarp: A sheet of waterproof canvas or other material used to cover and protect materials, equipment,
or vehicles.
Topography: The physical features of a surface area including relative elevations and the position of
natural and human-made features.
Toxic Pollutants: Any pollutant listed as toxic under Section 501(a)(l) or, in the case of "sludge use
or disposal practices," any pollutant identified in regulations implementing Section 405(d) of the
CWA. Please refer to 40 CFR Part 122 Appendix D.
Treatment: The act of applying a procedure or chemicals to a substance to remove undesirable
pollutants.
Waste: Unwanted materials left over from a manufacturing or other process.
Waste Pile: Any non-containerized accumulation of solid, non-flowing waste that is used for
) treatment or storage.
Water Table: The depth or level below which the ground is saturated with water.
Waters of the United States: (a) All waters, which are currently used, were used in the past, or may
be susceptible to use in interstate or foreign commerce, including all waters which are subject to the
ebb and flow of the tide; (b) all interstate waters, including interstate "wetlands;" (c) all other waters
such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats,
"wetlands," sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds, the use,
degradation, or destruction of which would affect or could affect interstate or foreign commerce
including any such waters: (1) which are or could be used by interstate or foreign travelers for
recreational or other purposes; (2) from which fish or shellfish are or could be taken and sold in
interstate or foreign commerce; or (3) which are used or could be used for industrial purposes by
industries in interstate commerce; (d) all impoundments of waters otherwise defined as waters of the
United States under this definition; (e) tributaries of waters identified in paragraphs (a) through (d) of
this definition; (f) the territorial sea; and (g) "wetlands" adjacent to waters (other than waters that are
themselves wetlands) identified in paragraphs (a) through (f) of this definition.
Waste treatment systems, including treatment ponds or lagoons designed to meet the requirements of
CWA (other than cooling ponds as defined in 40 CFR 423.11(m) which also meet the criteria of this
definition), are not waters of the United States. This exclusion applies only to manmade bodies of
water which neither were originally created in waters of the United States (such as disposal area in
wetlands) nor resulted from the impoundment of waters of the United States.
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' Waterway: A channel for the passage or flow of water.
J
J
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APPENDIX J
GROUNDWATER ANALYTICAL TESTING RESULTS
'&•>:'Jtii
Table 1
SUMMARY OF GROUNDWATER SAMPLE ANALYTICAL RESULTS
CARLSBAD-VISTA SEWER/STORM DRAIN
Test
FPH'-gasoline
TPH'-diesel fuel
TRPH"
VOCsc
PCBs"
Units
ug/1
ug/1
mg/1
ug/1
ug/1
Monitoring Wells
MW-11A
<20
<500
na
na
na
MW-18A MW-22A
<20 <20
<500
na
na
na
<500
na
na
na
MW-27A
<20
<500
na
na
na
Hydropunch Sample Locations
C-3
na
na
<1
NO
ND
C-6
na
na
<1
ND
ND
C-10
na
na
<1
ND
' ND
C-16
na
na
<1
ND
ND
C-21
na
na
<1
ND
ND
C-29
na
na
<1
ND
ND
SVOCs'
Bis(2-ethylhexl)phthalate ug/1 na na na na 9 <5 <5 <5 <5 <5
Metals
Chromium
Copper
Lead
Nickel
Zinc
Mercury
Selenium
Arsenic
Hexavalent chromium
Residual chlorine
Cyanide
Dissolved sullide
Total coliform
Fecal coliform
Turbidity
)issolved oxygen
Nitrogen, Kjeldahl
Nitrogen, nitrate
Total phosphorus
Settleable solids
Total suspended solids
Ammonia as nitrogen
pH
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
mg/l
MPN/100ml
MPN/100ml
NTU
mg/l
mg/l
mg/l
mg/I
mg/l
mg/l
mg/l
unitless
na
na
na
na
na
na
na
0.002
<0.02
<0.05
<0.02
<0.05
8
<2
37
2.42
0.22
12.8
<0.05
<0.2
48
<0.1
6.8
na
na
na
na
na
na
na
<0.002
<0.02
<0.05
<0.02
<0.05
13
2
29
4.56
0.19
1.81
<0.05
<0.2
44
<0.1
6.8
na
na
na
na
na
na
na
<0.002
<0.02
<0.05
<0.02
<0.05
17
<2
136
3
0.19
10.9
0.14
<0.2
250
0.1
6.9
na
na
na
na
na
na
na
<0.002
<0.02
<0.05
<0.02
<0.05
8
<2
31
NO
0.27
23.2
0.06
<0.2
92
<0.1
6.8
<0.1
<0.1
<0.1
<0.1
<0.1
0.0001
0.004
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.6
<0.1
0.1
0.2
0.4
0.0009
<0.03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.4
<0.1
<0.1
0.1
0.3
0.0005
<0.03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.7
<0.1
0.1
0.1
0.8
0.0008
0.04
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
<0.1
<0.1
<0.1
<0.1
<0.1
<0.0001
<0.03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
0.3
0.1
0.2
<0.1
0.3
0.0008
<0.03
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
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Table 1 (Concluded)
SUMMARY OF GROUNDWATER SAMPLE ANALYTICAL RESULTS
CARLSBAD-VISTA SEWER/STORM DRAIN
Test
Conductivity
Tributyltin
Units
umhos/cm
ug/l
Monitoring Wells
MW-11A
2,050
<0.005
MW-18A
160
<0.005
MW-22A
2,840
<0.005
MW-27A
3,100
<0.005
Hydropunch Sample Locations
C-3
na
na
C-6
na
na
C-10
na
na
C-16
na
na
C-21
na
na
C-29
na
na
Acute Toxicity1 '
Topsmelt
Mysid
TU
TU
0.59
0.41
0.59
0.41
0.59
0.41
0.59
0.41
na
na
na
na
na
na
na
na
na
na
na
na
Chronic Toxicity'
Topsmelt
Kelp
Echinoderm
TU
TU
TU
<1.0
<2.4
<2.4
<1.0
<2.4
<2.4
<1.0
<2.4
<2.4
<1.0
<2.4
<2.4
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
na
Notes:
Specific test methods are described in the attached report.
a: Total petroleum hydrocarbons, quantified as gasoline and diesel fuel
b: Total recoverable pel/oleum hydrocarbons
c: Volatile organic compounds
d: Polychlorinaled blphenyls
e: Sem'rvolatile organic compounds; compounds other than those listed were not detected
I: Acute bloassay conducted on two separate composite samples (composite of MW-11A and MW-22A, and a composite of MW-18A and MW-27A)
g: Chronic bioassay conducted on one composite sample of groundwater collected from MW-11A, MW-18A, MW-22A and MW-27A.
na: Not analyzed
NO: Not delected
The symbol V (less than) indicates the constituent was not detected at the specified laboratory detection limit (except for acute and chronic bioassays; see attached lab report for explanation).
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