Storm Water Pollution Prevention Plan Municipal

Transcription

Storm Water Pollution Prevention Plan
For
Municipal Water Well No. 11
and Transmission Water Main
Prepared for:
City of Lompoc
Michael Luther, Senior Civil Engineer
100 Civic Center Plaza
Lompoc, CA 93438
(805) 875-8272
Project Site Location / Address
Hwy 246 and Riverside Dr., Pine St., 3rd St. and North Ave.,
Lompoc, CA 93438
Prepared by:
Wallace Group
612 Clarion Court
San Luis Obispo, CA 93401
(805) 544-4011
SWPPP Preparation Date:
July 20, 2010
Estimated Project Construction Dates:
Start 01/01/11, Completion 08/15/11
Permit Registration Document submittal date: __________, 2010
WDID No.: ________________________
Municipal Water Well No. 11 and Transmission Water Main – SWPPP
July 20, 2010
Page 1
Table of Contents
SECTION 1 INTRODUCTION .............................................................................................. 3
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
Obtaining Permit Coverage .................................................................................................................................... 3
SWPPP Certification ............................................................................................................................................... 3
Legally Responsible Party....................................................................................................................................... 4
Contractor Information .......................................................................................................................................... 4
SWPPP Availability................................................................................................................................................. 4
Storm Water Multi-Application and Report Tracking System ........................................................................... 4
Required Non-Compliance Reporting ................................................................................................................... 5
Retention of Records ............................................................................................................................................... 5
Inspection and Entry ............................................................................................................................................... 5
SECTION 2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
PROJECT INFORMATION........................................................................... 6
Project and Site Description ................................................................................................................................... 6
Vicinity Map............................................................................................................................................................. 6
Unique Site Features................................................................................................................................................ 6
SWPPP Objectives................................................................................................................................................... 7
Stormwater Run-on and Runoff from Offsite Areas ............................................................................................ 7
Risk Assessment ....................................................................................................................................................... 7
Construction Schedule............................................................................................................................................. 8
Potential Construction Site Pollutant Sources ...................................................................................................... 8
Identification of Non-Stormwater Discharges....................................................................................................... 9
SECTION 3 BEST MANAGEMENT PRACTICES ............................................................. 10
3.1
3.2
3.3
3.4
BMP Installation Schedule.................................................................................................................................... 10
Erosion & Sediment Control Best Management Practices................................................................................. 11
Non-Stormwater and Material Management Best Management Practices ...................................................... 11
Post-Construction Best Management Practices .................................................................................................. 12
SECTION 4 CONSTRUCTION SITE MONITORING PROGRAM...................................... 13
4.1
4.2
4.3
4.4
4.5
4.6
Visual Monitoring/ Inspection .............................................................................................................................. 15
Rain Event Action Plans ....................................................................................................................................... 16
Non-Storm water Discharge Monitoring ............................................................................................................. 16
Water Quality Sampling and Analysis................................................................................................................. 16
Quality Assurance and Quality Control .............................................................................................................. 18
Reporting Requirements and Records Retention ............................................................................................... 20
SECTION 5 ANNUAL REPORTING REQUIREMENTS .................................................... 22
5.1
5.2
Storm Water Monitoring ...................................................................................................................................... 22
Training Information ............................................................................................................................................ 22
SECTION 6 NOTICE OF TERMINATION .......................................................................... 23
Appendices
Legally Responsible Party Documentation ......................................................................................................... A
Contractor Information ........................................................................................................................................ B
Site Map/ Erosion and Sediment Control Plan.................................................................................................... C
Risk Assessment................................................................................................................................................. D
BMP Fact Sheets ................................................................................................................................................ E
Construction Site Monitoring Plan Checklists ..................................................................................................... F
Rain Event Action Plan .......................................................................................................................................G
Pollution Testing Guidance Table………………………………………………………………………....……...........H
Calculations ........................................................................................................................................................ I
Other Plans & Permits.........................................................................................................................................J
July 20, 2010
Page 2
Section 1 Introduction
1.1
Obtaining Permit Coverage
To obtain coverage, the City must electronically file Permit Registration Documents (PRDs) prior to the
commencement of construction activity. Failure to obtain coverage under this General Permit for storm water
discharges to waters of the United States is a violation of the CWA and the California Water Code.
PRDs consist of:
a. Notice of Intent (NOI)
b. Risk Assessment (Appendix D)
c. Site Map (Appendix C)
d. Storm Water Pollution Prevention Plan
e. Annual Fee
f. Signed Certification Statement (Appendix A)
The annual fee of $346.00 is required no later than seven days prior to the commencement of construction
activities. Permit coverage shall not commence until the PRDs and the annual fee are received by the State
Water Board, and a Waste Discharger Identification (WDID) number is assigned and sent by State Water
Board Storm water Multi-Application and
Report Tracking System (SMARTS).
1.2
SWPPP Certification
This SWPPP was prepared under the direction of Pete Miller, a Qualified SWPPP Developer (QSD).
Pete Miller
July 13, 2010
Date
Mr. Miller possesses the following QSD qualifications per Section VII of the General Permit:
California Registered Civil Engineer, C62096, Expiration 9/30/10
Contact Information for questions or concerns:
Phone (805) 544-4011
Wallace Group
612 Clarion Court
San Luis Obispo, CA 93401
This is a combined traditional and linear project SWPPP that conforms with the required elements of the
General Permit Order No. 2009-0009-DWQ issued by the State of California, State Water Resource Control
Board. A QSD is required to prepare any necessary SWPPP amendments or annual reports.
July 20, 2010
Page 3
This SWPPP (including all inspections, amendments and reports) and the General Permit shall be maintained
for three years from the date submitted. These records shall be available at the construction site until
construction is complete. When the original SWPPP is retained by a crewmember in a construction vehicle
and it is not currently at the construction site, current copies of the BMPs and map/drawing will be left with the
field crew and the original SWPPP shall be made available via a request by radio/telephone.)
1.3
Legally Responsible Party
Legally Responsible Party: Michael A. Siminski, Mayor, City of Lompoc
The Legally Responsible Party (LRP) is responsible for obtaining permit coverage prior to the commencement
of construction activity. The Legally Responsible Person (LRP) or LRP’s Approved Signatory, a person legally
authorized to sign and certify Permit Registration Documents (PRDs) and Notice of Termination (NOT) on
behalf of the LRP, must submit all information electronically via the SWRCB’s SMARTS. In addition, all Annual
Reports, or other information required by the General Permit or requested by the Regional Water Board, State
Water Board, or U.S. EPA shall be certified and submitted by the LRP. A copy of the written agreement or
other mechanism that provides this authority from the LRP is provided in Appendix A of the SWPPP.
The LRP makes the following certification when signing any PRDs:
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system or those persons directly responsible for gathering the
information, to the best of my knowledge and belief, the information submitted is, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations."
Appendix A contains a list of authorized representatives, their role on the project, contact information and
verification of appropriate training and a copy of a signed certification statement.
1.4
Contractor Information
Appendix B includes the names and contact information of the Storm Water Pollution Prevention Plan
Manager (SWPPPM) and a list of names of all contractors, subcontractors, and individuals who will be directed
by the SWPPPM. This list shall include telephone numbers and work addresses. Specific areas of
responsibility of each subcontractor and emergency contact numbers shall also be included.
The discharger shall ensure that all BMPs required by this General Permit are implemented by a Qualified
SWPPPM. The SWPPPM shall be a person responsible for non-storm water and storm water visual
observations, sampling and analysis and shall have primary responsibility and significant authority for the
implementation, maintenance, inspection of the site to ensure full compliance with the SWPPP and the Permit.
1.5
SWPPP Availability
The SWPPP shall be available at the construction site during working hours while construction is occurring
and shall be made available upon request by a State or Municipal inspector. When the original SWPPP is
retained by a crewmember in a construction vehicle and is not currently at the construction site, copies of the
BMPs and map/drawing will be left with the field crew and the original SWPPP shall be made available via a
request by radio/telephone.
1.6
Storm Water Multi-Application and Report Tracking System
This General Permit requires all dischargers to electronically file all Permit Registration Documents (PRDs),
Notices of Termination (NOT), changes of information, annual reporting, and other compliance documents
required by this General Permit through the State Water Board’s Storm water Multi-Application and Report
Tracking System (SMARTS) website.
July 20, 2010
Page 4
1.7
Required Non-Compliance Reporting
The General Permit requires all dischargers to report exceedances and violations using the SMARTS system
including any indications of toxicity or other violations of water quality objectives.
1.8
Retention of Records
The General Permit requires that all dischargers maintain a paper or electronic copy of all required records for
three years from the date generated or date submitted, whichever is last. These records must be available at
the construction site until construction is completed.
The discharger shall furnish the Regional Water Board, State Water Board, or U.S. EPA, within a reasonable
time, any requested information to determine compliance with the General Permit. The discharger shall also
furnish, upon request, copies of records that are required to be kept by this General Permit.
1.9
Inspection and Entry
The discharger shall allow the Regional Water Board, State Water Board, U.S. EPA, and/or, in the case of
construction sites which discharge through a municipal separate storm sewer, an authorized representative of
the municipal operator of the separate storm sewer system receiving the discharge, upon the presentation of
credentials and other documents as may be required by law, to:
1. Enter upon the discharger’s premises at reasonable times where a regulated construction activity is
being conducted or where records must be kept under the conditions of the General Permit;
2. Access and copy at reasonable times any records that must be kept under the conditions of this
General Permit;
3. Inspect at reasonable times the complete construction site, including any off-site staging areas or
material storage areas, and the erosion/sediment controls; and
4. Sample or monitor at reasonable times for the purpose of ensuring General Permit compliance.
July 20, 2010
Page 5
Section 2
2.1
Project Information
Project and Site Description
This project constructs municipal water well (#11) on the north side of Hwy 246 near its intersection with the
Santa Ynez River, to provide additional water supply to the City of Lompoc. A transmission water main will be
constructed, in conjunction with the well, to pipe water from the well site north to Riverside Dr., Pine St., 3rd St.
and North Ave. and then to connect to a water main on North Ave. The project is 2.3 acres and includes
drilling of the well, construction of a pump building, an electrical building, a CMU wall surrounding well
structures, a driveway, drainage improvements, a transmission water main line, landscaping and mitigation
planting. The well portion of the project is defined as a traditional project while the transmission water main is
defined as a linear project. Requirements for both project types are covered under this SWPPP.
2.2
Vicinity Map
A vicinity map is provided in Figure 1.
Figure 1. Vicinity Map of Project
2.3
Unique Site Features
The well site and portion of the transmission water main are within an environmentally sensitive area, adjacent
to the Santa Ynez River and its riparian zone. Though characterized by upland plants in the area of
construction, the site drains directly to the Santa Ynez River overland through sheet flow. The transmission
water main, access drive and other improvements are located within the 100-year flood plain. Any portion of
the well site which is located within the 100-year flood plain will be flood-proofed and constructed at an
elevation which meets the requirements of the City’s Flood Ordinance. The project has been designed to
minimize the impact to the Santa Ynez River and its riparian zone. Mitigation measures have been applied to
address potential biological impacts.
The site of the proposed Well 11 is relatively flat, dropping off to the east toward the river bank. Run-on
occurs in the area of the access drive and a culvert is proposed to direct the run-on through the site in a
July 20, 2010
Page 6
proposed drainage swale. Run-on also occurs along the length of the transmission water main location,
through sheet flow heading towards the Santa Ynez River. At the north end of the proposed transmission
water main alignment, run-on occurs from a storm drain which terminates in a large, relatively steep gully,
through which the transmission water main will be placed.
The site is relatively flat to very gently sloping and drains by sheet flow. There is no run-on to the well site.
Soils at the well site consist of layered sands that were moist to wet with a medium dense to dense
consistency. A isolated layer of silt soil exists at 14 -19 ft below the ground surface and the silt was moist and
very stiff. Groundwater was encoutered at a depth of 38 ft below the ground surface.
The project is subject to requirements of the California Department of Fish and Game. The contractor shall be
responsible for ensuring compliance with all CDFG requirements and with the specific mitigation measures of
the project. The letter from the California Department of Fish and Game, the Notification of Streambed
Alteration Agreement and its attachments are provided in Appendix J
2.4
SWPPP Objectives
This SWPPP has been designed to address the following objectives:
1. All pollutants and their sources, including sources of sediment associated with construction,
construction site erosion and all other activities associated with construction activity are controlled;
2. Where not otherwise required to be under a Regional Water Board permit, all non-storm water
discharges are identified and either eliminated, controlled, or treated;
3. Site BMPs are effective and result in the reduction or elimination of pollutants in storm water
discharges and authorized non-storm water discharges from construction activity to the best available
technology economically achievable (BAT) / best conventional pollutant control technology (BCT)
standard;
4. Calculations and design details as well as Best Management Practices (BMPs) controls for site run-on
are complete and correct, and
5. Stabilization BMPs installed to reduce or eliminate pollutants after construction are completed.
2.5
Stormwater Run-on and Runoff from Offsite Areas
Run-on is considered insignificant to the linear project and is received on site as sheet flow. The well site is
approximately 2 feet above existing grade and will not have any run–on. Runoff will also be minimal. The well
site is less than 0.5 acre and runoff is directed to an existing roadside ditch. The disturbed area for the
transmission water lines site is approximately 30 ft wide in unpaved areas and approximately 3’ wide in paved
areas. On unpaved areas, it is adjacent to stable vegetation and low gradients. On paved areas, water will be
conveyed by the existing municipal storm drain system. There are no calculations.
2.6
Risk Assessment
The General Permit establishes three levels of risk possible for a construction site. Risk is calculated in two
parts: 1) Project Sediment Risk, and 2) Receiving Water Risk. The site's sediment risk and receiving water risk
was evaluated for the period of soil exposure (i.e. grading and site stabilization) using the methodology in
Appendix 1 of the General Permit. This project is a combined traditional and linear project. The higher risk
level of Risk Level 2 (Type 2 LUP) was chosen to represent the entire site.
Municipal Water Well No. 11
Sediment Risk: Medium
The RUSLE equation was used through the Rainfall Erositivity Factor Calculator and the GIS Map Method to
determine soil risk. The online rainfall erosivity factor calculator (R) is based on soil erosivity and construction
scheduling. It was determined that the R factor is 24.62. Using the GIS Map Method and soil characteristics
described in the Soils Engineering Report (2009), the project site lies in the KLS risk category of 1.0.
Therefore, the project will contribute less than 75 tons/acre of sediment and has a medium sediment risk.
July 20, 2010
Page 7
Receiving Water: High
The Santa Ynez River is on the impaired waterbody 303d list for sedimentation/siltation, and has beneficial
uses of Cold water Fishery, Migratory, and Spawning. Based on these characteristics, the site has a high
receiving water risk.
In accordance with the chart below, the project was determined to have a combined Level 2 Risk based on its
sediment (low) and receiving water (high) characteristics. A copy of the Risk Assessment is provided in
Appendix D.
The General Permit requires visual monitoring at all sites, and effluent water quality at all Risk Level 2 & 3.
Section 4 elaborates on the required monitoring for this project. This SWPPP is designed to adhere to Risk
Level 2 requirements as established in Attachment D of the General Permit.
Transmission Water Main
The Transmission Water Main will be installed primarily along existing paved roads. In addition, disturbed
areas will be returned to pre-construction conditions at project completion. Using the LUP Project Type
Determination Flow Chart in Attachment A.1 of the Permit, the project is considered a Type 1 LUP. However,
because this is a combined SWPPP the higher risk level of the two portions of the project was utilized. Type 2
LUP requirements will be met for the linear portion of the project.
2.7
Construction Schedule
The project is anticipated to start in the fall of 2010 and be completed prior to the rainy season.
Contract Award
Site Preparation and Grubbing
Implement Temporary Erosion and Sediment Control BMPs
Clearing and Grading
Well Drilling
Electrical conduit/ subgrade preparation
Transmission Water Main Line
PCC and Drainage
AC Paving Operations
Slope Stabilization
Project Accepted
2.8
01/01/2011
01/01/2011
01/08/2011
01/10/2011
01/15/2011
01/27/2011
02/20/2011
02/27/2011
02/27/11
08/10/2011
08/15/2011
Potential Construction Site Pollutant Sources
The following is a list of construction materials which will be used and activities that will be performed that
have the potential to contribute pollutants off-site:
• Clearing, Grubbing, Trenching and Grading Operations (slopes, pads, driveway and pipeline)
• Base and AC Pavement Placement (driveway and pipeline)
• PCC (curbs and pads)
• Vehicle fluids, including oil, grease, petroleum and coolants (from construction equipment)
• Trash (from construction personnel)
July 20, 2010
Page 8
•
2.9
Paint (for pavement markings)
Identification of Non-Stormwater Discharges
Non-storm water discharges are prohibited by the General Permit and include the discharge of materials other
than stormwater and authorized non-stormwater discharges.
An inventory of construction activities and potential non-storm water discharges was undertaken to identify
appropriate BMPS to eliminate or control all non-storm water discharges. Potential discharges identified
include:
• Concrete Wastes (curbs and pads)
• Vehicle and equipment fueling
• Sanitary Waste
• Liquid waste (slurries, filling fluids, wash water)
Potential non-visible pollutant identified include:
• Concrete Waste
• Landscaping products
• Soil stabilization products
July 20, 2010
Page 9
Section 3 Best Management Practices
Best Management Practices (BMPs) were chosen for this project to reduce or eliminate pollutants in storm
water discharge, and to comply with the Provisions of Attachment D of the General Order (Risk Level 2
Requirements) as well as those in the General Permit Order. BMPs are shown in the erosion and sediment
control plan provided in Appendix C.
The General Permit Order requires:
Dischargers shall minimize or prevent pollutants in storm water discharges and authorized non-storm water
discharges through the use of controls, structures, and management practices that achieve Best Available
Technology Economically Achievable (BAT) for toxic and non-conventional pollutants and Best Conventional
Pollutant Control Technology (BCT) for conventional pollutants.
Storm water discharges and authorized non-storm water discharges regulated by this General Permit shall not
contain a hazardous substance equal to or in excess of reportable quantities established in 40 C.F.R. §§ 117.3
and 302.4, unless a separate NPDES Permit has been issued to regulate those discharges.
As a Risk level 2 discharger this project is subject to Numeric Action Levels (NALs) for pH and turbidity as
described in Section 3.4.
3.1
BMP Installation Schedule
The Contractor is responsible for ensuring that appropriate BMPs are in place during the operations requiring
the BMPs. Below is a schedule intended to provide the minimum BMPs necessary during each phase of the
contractor’s operation. Additional BMPs may be necessary. Some BMPs installed early in the project shall
remain in place upon completion of the project, while others must be removed prior to the completion of the
project. Appendix E provides BMP Fact Sheets on design and implementation guidelines for each BMP.
The following BMPs shall be installed / utilized prior to clearing and grubbing operations:
EC-1 Scheduling
EC-2 Preservation of Existing Vegetation
SE-7 Street Sweeping and Vacuuming
NS-6 Illicit Connection/Discharge
NS-9 Vehicle and Equipment Fueling
NS-10 Vehicle & Equipment Maintenance
WM-1 Material Delivery and Storage
WM-2 Material Use
WM-3 Stockpile Management
WM-4 Spill Prevention and Control
WM-5 Solid Waste Management
WM-6 Hazardous Waste Management
WM-9 Sanitary/Septic Waste Management
If materials are stockpiled on-site and the stockpiles are inactive (not scheduled to be re-disturbed for at least
14 days), then the stockpiled areas shall be covered and a berm placed around the materials in accordance
with WM-3 “Stockpile Management.”
The following BMPs shall be installed / utilized during grading/mobilization operations:
WE-1 Wind Erosion Control
TC-1 Stabilized Construction Entrance/Exit
NS-1 Water Conservation Practices
SE-1 Silt Fence
SE-5 Fiber Rolls
The following BMPs shall be installed / utilized upon completion of drainage work:
EC-10 Velocity Dissipation Devices
July 20, 2010
Page 10
SE-10 Storm Drain Inlet Protection
The following BMPs shall be installed / utilized during paving operations:
NS-3 Paving and Grinding Operations
The following BMPs shall be installed / utilized during concrete operations:
NS-12 Concrete Curing
NS-13 Concrete Finishing
WM-8 Concrete Waste Management
The following BMPs shall be installed / utilized during slope stabilization operations:
EC-6 Straw Mulch/Hydroseed/Tackifier/Soil Amendment
EC-7 Geotextiles & Mats (biodegradable option)
All BMPs, except those designated as post-construction BMPs in Section 3.4, are to be removed prior to
contract acceptance.
3.2
Erosion & Sediment Control Best Management Practices
Appendix E provides BMP Fact Sheets on design and implementation guidelines for each BMP to reduce or
eliminate pollutants in stormwater discharges. All BMPs are required to be implemented.
The following BMPs are to be incorporated into this SWPPP:
EC-1 Scheduling
EC-2 Preservation of Existing Vegetation
SE-1 Silt Fence
SE-5 Fiber Rolls
SE-7 Street Sweeping and Vacuuming
SE-10 Storm Drain Inlet Protection
WM-3 Stockpile Management
3.3
Non-Stormwater and Material Management Best Management Practices
Non-storm water discharges may contribute significant pollutant loads to receiving waters. Measures to control
spills, leakage, and dumping, and to prevent illicit connections during construction must be addressed through
structural as well as non-structural Best Management Practices (BMPs).
BMPs are designated in this SWPPP to prevent non-stormwater discharges. All BMPs are required to be
implemented.
WE-1
TC-1
NS-1
NS-3
NS-6
NS-9
NS-10
NS-12
NS-13
WM-1
WM-2
WM-4
WM-5
WM-6
WM-8
Wind Erosion Control
Stabilized Construction Entrance/Exit
Water Conservation Practices
Paving and Grinding Operations
Illicit Connection/Discharge
Vehicle and Equipment Fueling
Vehicle & Equipment Maintenance
Concrete Curing
Concrete Finishing
Material Delivery/Storage
Material Use
Spill Prevention and Control
Solid Waste Management
Hazardous Waste Management
Concrete Waste Management
July 20, 2010
Page 11
WM-9 Sanitary/Septic Waste Management
Vehicle and Equipment Cleaning is prohibited from occurring on-site. Fueling and maintenance of equipment
and vehicles shall take place in designated areas only. Materials storage on–site will be minimized.
3.4
Post-Construction Best Management Practices
This SWPPP contains Post-Construction BMPs, which are designated to reduce or eliminate pollutants after
construction is completed.
BMPs serving dual purpose roles (construction and post-construction protection) include:
BMP for post-construction include:
FloGard Filter
July 20, 2010
Page 12
Section 4 Construction Site Monitoring Program
The General Permit requires the following types of monitoring for Risk Level 2 projects:
• Visual inspections of Best Management Practices (BMPs);
• Visual monitoring of the site related to qualifying storm events;
• Visual monitoring of the site for non-stormwater discharges;
• Sampling and analysis of construction site runoff;
• Sampling and analysis of non-stormwater discharges;
Storm event monitoring should be conducted during business hours; and when the National Oceanographic
and Atmospheric Administration (NOAA) (http://www.srh.noaa.gov/forecast) forecasts a rain event with a 50%
or greater probability of producing a ½-inch or more of rain.
Table 3 -1 Summary of Monitoring
Type of Monitoring
Visual Inspection
BMP
Storm water
Pre-storm
Post-storm
Non-storm water
Sampling & Analysis
Storm water runoff
(effluent)
What
When
Where**
Presence and
effectiveness of all BMPs
Weekly (Well site), daily (water
main site) and
Every 24 hours during an
extended storm event.
#1-9
All drainage areas and
BMPs.
All drainage areas and
BMPs.
Operations and BMPs
identified in Section 2.3
Within 2 business days before
each qualifying storm event.
Within 2 business days after
each qualifying storm event.
Quarterly
#1-9
pH and turbidity of storm
water runoff
representative of site.
BMP failure/spill
Runoff affected and not
(non-visible)
affected by the
discharge/spill. Use
Appendix H as a guide.
Non-storm water
Operations and BMPs
identified in Section 2.3
** Sample locations are shown in Appendix C.
#1-9
Location of
discharge.
Within 2 business days of each
qualifying storm event, and at a
minimum 3 samples per day.
Within first 2 hours of discharge
from site.
#1
If non-storm water is discharged
off site.
Location of
discharge.
Location of
discharge.
Rain events and resulting monitoring periods should be separated into qualifying rain events. A qualifying rain
event is defined as any event producing precipitation of ½ inch or more within a 48 hour or greater period. A
rain gage should be installed on-site, if possible.
Monitoring locations provide clear views of BMPs, disturbed areas and extend through the entire site.
Dischargers must maintain on-site records of all visual observations, personnel performing the observations,
observation dates, weather conditions, locations observed, and corrective actions taken in response to the
observations. The Construction Site Monitoring Checklists (Appendix F) should be used to track all monitoring
activities.
At the water main site only, inspections may be discontinued in non-active construction areas where soildisturbing activities are completed and final soil stabilization is achieved.
July 20, 2010
Page 13
Figure 2. Overview of Monitoring Locations
Section 1
Section 2
July 20, 2010
Page 14
Section 3
4.1
Visual Monitoring/ Inspection
All storm water monitoring must be completed within two (2) business days of each qualifying rain event at
identified locations. Appendix C shows the monitoring locations.
BMP Inspection
The purpose of these inspections is to identify BMPs that:
• Need maintenance to operate effectively;
• Failed; or
• Could fail to operate as intended.
If deficiencies are identified during BMP inspections, repairs or design changes to BMPs must
be initiated within 72 hours of identification and need to be completed as soon as possible.
All BMP inspections must be documented on an inspection checklist (Appendix F).
Storm water Inspection
Dischargers must conduct a pre-storm event inspection of:
• All storm water drainage areas to identify and resolve prior to the storm event, any spills, leaks, or
uncontrolled pollutant sources
• All BMPs to identify proper implementation
• Any storm water storage and containment areas to detect and remedy leaks if found
Dischargers must conduct a post-storm event inspection within two business days (48 hours)
to identify whether:
(1) BMPs were adequately designed, implemented, and effective, and
(2) If any additional BMPs necessary (and amend the SWPPP accordingly).
July 20, 2010
Page 15
Visual inspection shall be made of any stored or contained storm water derived from and discharged after a
rain event that is producing ½ inch or more at the time of discharge. If discharge due to additional precipitation
is expected to occur after business hours, visual inspection shall take place during operating hours.
For the linear portion of the project, photographs of the site must be taken before, during and after storm
events during inspections, and submitted through SMARTS once every three rain events.
Non-stormwater Inspection
See Section 4.3
4.2
Rain Event Action Plans
Rain Event Action Plans (REAP) are required for each construction phase at the well site only. Linear projects
do not require a REAP. The REAP is designed to protect all exposed portions of project sites and to ensure
that the discharger has adequate materials, staff, and time to implement erosion and sediment control
measures that are intended to reduce the amount of sediment and other pollutants that could be generated
during the rain event. A REAP template is included in SWPPP Appendix G.
Construction phases for this project include:
• Grading and Land Development
• Street and Utilities
• Vertical Construction
• Site Stabilization
The SWPPPM shall develop additional REAPs for the project sites where construction activities are indefinitely
halted or postponed.
The SWPPPM must develop the REAP 48-hours in advance of any precipitation event forecast to have a 50%
or greater chance of producing precipitation in the project area. A printed copy of the precipitation forecast
shall be obtained by the QSP from the National Weather Service Forecast Office. The REAP must be on site
and be implemented 24 hours in advance of any the predicted precipitation event. A paper copy of each REAP
shall remain on-site during the full term of the project.
4.3
Non-Storm water Discharge Monitoring
Quarterly non-storm water discharge monitoring will include the visual inspection of each drainage area during
daylight hours for the presence of non-storm water discharges and their sources in April - June and July –
September quarters. If non-storm water is discharged off site, the effluent must be sampled. Quarterly
monitoring should be recorded on Construction Site Monitoring Checklists in Appendix F.
Potential non-stormwater discharges within this project include:
• Vehicle and equipment fueling and maintenance
• Concrete mixing
Quarterly inspections need to include each drainage area of the project and document:
• Presence or indications of unauthorized and authorized non-storm water discharges and their sources;
• Pollutant characteristics of the non-storm water discharge (floating and suspended material, sheen,
discoloration, turbidity, odor, etc;
• Personnel performing the observations;
• Dates and approximate time each drainage area and non-stormwater discharge was observed; and
• Response taken to observations.
4.4
Water Quality Sampling and Analysis
The project is required to collect samples of:
runoff for non-visible pollutants in the event of a BMP failure, breach or spill
runoff and contained water for pH and turbidity
non-stormwater discharge
July 20, 2010
Page 16
Sampling personnel will collect storm water grab samples at discharge locations according to procedures
outlined in Section 4.5 Quality Assurance and Quality Control. Monitoring checklists are in Appendix F.
Appendix C shows the monitoring locations for all monitoring.
Sampling is not required outside of scheduled business hours or under dangerous conditions. An explanation
of why samples were not taken will be included with on-site inspection documents.
Storm water Sampling
It is expected that the site will have minimal sheet flow. For a qualifying rain event, a minimum of 3 samples
per day will be collected, if there is runoff from the site that originates in the project area. It should be ensured
that storm water discharge collected and observed represent the effluent in each drainage area, based on
visual observation of the water and upstream conditions.
Effluent will be analyzed for pH and turbidity and non-visible pollutant parameters (if applicable). Analysis of
pH will be performed on-site with a calibrated pH meter or a pH test kit. pH analysis only needs to occur when
high pH activities (like use of concrete, lime, gypsum) are undertaken during predicted rain (like use of
concrete, lime, gypsum). Turbidity analysis will be performed using a calibrated turbidity meter either on-site or
at an accredited lab.
Risk Level 2 projects are subject to the following Numeric Action Levels (NALs):
• pH
6.5 – 8.5
• Turbidity
250 NTU
Run-on will be monitored only if there is reason to believe run-on may contribute to an exceedance of NALs.
In the event that the storm event average of the samples exceeds an applicable NAL, Risk Level 2 dischargers
must electronically submit all storm event sampling results to the SWRCB’s SMARTS no later than 10 days
after the conclusion of the storm event. In addition, the RWQCBs may request the submittal of an NAL
Exceedance Report. The discharger must certify each NAL Exceedance Report in accordance with the
General Permit’s Special Provisions for Construction Activity.
Non-Visible Pollutant Sampling
If there is a breach, spill or BMP failure, runoff potentially affected by the non-visible pollutants will be sampled
within the first two hours of discharge. Ensure the grab samples collected of stored or contained storm water
are from discharges subsequent to a qualifying rain event (That which produces ½ inch or more at the time of
discharge.), and that water samples taken are large enough to characterize the site conditions. Collect one or
more samples during any breach, malfunction, leak or spill observed during a visual inspection, which could
result in the discharge of pollutants to surface waters that would not be visually detectable in storm water.
Also, collect samples that have not come in contact with the disturbed soil or the materials stored or used onsite for comparison with the discharge sample.
Samples will be analyzed for all applicable non-visible pollutant parameters – indicating the presence of
pollutants identified in the pollutant source assessment required. The SWPPP shall be modified to identify any
additional pollutants found.
It is important to note that covered construction materials or those that are in their final constructed form, do
not need to be monitored. Materials that are stored exposed to precipitation and may generate runoff need to
be considered for non-visible pollutant monitoring. Appendix H provides further guidance.
Non-Storm water Sampling
If non-storm water is discharged off site, the effluent must be sampled. All non-storm water sample analyses
should be conducted by a state certified laboratory.
July 20, 2010
Page 17
4.5
Quality Assurance and Quality Control
The SWPPPM is responsible for non-storm water and storm water visual observations, sampling and analysis,
and for ensuring full compliance with the permit and implementation of all elements of the SWPPP.
Prior to the rainy season, all sampling personnel and alternates will review the Monitoring Plan. Qualifications
of designated personnel describing environmental sampling training and experience are provided in Appendix
B. Sampling personnel will be designated and trained to collect, maintain and ship samples in accordance with
the Surface Water Ambient Monitoring Program’s (SWAMP) 2008 Quality Assurance Program Plan (QAPP)
(http://www.swrcb.ca.gov/water_issues/programs/swamp/tools.shtml#qa).
Supplies and Storage
An adequate stock of supplies and equipment for monitoring pH, turbidity, and non-visible pollutants will be
available on the project site or provided by the identified state certified laboratory (Appendix F) prior to a
sampling event.
Monitoring supplies and equipment will be stored in a cool-temperature environment that will not come into
contact with rain or direct sunlight. Sampling personnel will be available to collect samples in accordance with
the sampling schedule.
Supplies maintained at the project site will include, but will not be limited to, surgical gloves, sample collection
equipment, coolers, appropriate number and volume of sample bottles, identification labels, re-sealable
storage bags, paper towels, personal rain gear, ice, Sampling Activity Log forms, and Chain of Custody (COC)
forms.
The Contractor will obtain and maintain the field-testing instruments, as identified below for analyzing samples
in the field by sampling personnel. Safety practices for sample collection will be followed in accordance with
the Contactor’s health and safety plan for the project (Appendix F).
Field Instruments
For samples collected for field analysis, collection, analysis and equipment calibration will be in accordance
with the field instrument manufacturer’s specifications.
•
•
•
The instrument(s) will be maintained in accordance with manufacturer’s instructions.
The instrument(s) will be calibrated before each sampling and analysis event.
Maintenance and calibration records will be maintained with the SWPPP.
Water Quality Constituent Analytical Method, Minimum Detection Limits, Sample Size and Container
Requirements shall be as follows:
Sample Collection and Handling Procedures
All sampling and sample preservation must be in accordance with the current edition of Standard Methods for
the Examination of Water and Wastewater (American Public Health Association).
To maintain sample integrity and prevent cross-contamination, sampling collection personnel will:
• Wear a clean pair of surgical gloves prior to the collection and handling of each sample at each
location.
• Not contaminate the inside of the sample bottle by not allowing it to come into contact with any
material other than the water sample.
July 20, 2010
Page 18
•
•
•
•
•
•
•
•
•
Discard sample bottles or sample lids that have been dropped onto the ground prior to sample
collection.
Not leave the cooler lid open for an extended period of time once samples are placed inside.
Not touch the exposed end of a sampling tube, if applicable.
Avoid allowing rainwater to drip from rain gear or other surfaces into sample bottles.
Not eat, smoke, or drink during sample collection.
Not sneeze or cough in the direction of an open sample bottle.
Minimize the exposure of the samples to direct sunlight, as sunlight may cause biochemical
transformation of the sample to take place.
Decontaminate sampling equipment prior to sample collection using a TSP-soapy water wash, distilled
water rinse, and final rinse with distilled water.
Dispose of decontamination water/soaps appropriately; i.e., not discharge to the storm drain system or
receiving water.
Immediately following collection, samples for field analysis will be tested in accordance with the field
instrument manufacturer’s instructions and results recorded on the Construction Site Monitoring Checklists,
provided in Appendix F. Any samples provided to a lab will be provided within 48 hours and use only the
sample bottle provided by the lab.
Uncontaminated sample will be compared to the samples with potential contamination.
For an initial verification of laboratory or field analysis, duplicate samples will be collected at a rate of 10
percent or 1 duplicate per sampling event. The duplicate sample will be collected, handled, and analyzed
using the same protocols as primary samples, and will be collected where contaminants are likely, and not on
the upstream sample. A duplicate sample will be collected immediately after the primary sample has been
collected. Duplicate samples will not influence any evaluations or conclusions; however, they will be used as a
check on state certified laboratory quality assurance.
Visible Pollutants
Grab samples will be collected and preserved in accordance with the methods identified above. Only
personnel trained in proper water quality sampling will collect samples.
Samples will not be collected directly from ponded, sluggish, or stagnant water. Samples will be collected
using one of the following methods:
• Placing a sample bottle directly into the collected flow in or near the main current upstream of
sampling personnel, and allowing the sample bottle to fill completely; OR,
• Placing a decontaminated or ‘sterile’ bailer or other ‘sterile’ collection device in or near the main
current to collect the sample, and then transferring the collected water to appropriate sample bottles,
allowing the sample bottles to fill completely. Run-on samples, if applicable, will be collected to identify
potential turbidity that originates off the project site and contributes to direct discharges from the
construction site to the Santa Ynez River. Run-on samples will be collected down gradient and within
close proximity of the point of run-on to the project by pooling or ponding water and allowing the
ponded water to spill over into sample bottles directly in the stream of water.
Non-Visible Pollutants
Non-visible pollutants may include those from:
• Concrete Wastes (lighting foundations, concrete v-ditch and ADA curb ramp)
• Vehicle and equipment fueling
• Sanitary Waste
• Landscaping products
• Soil stabilization products
July 20, 2010
Page 19
In the event that sampling is needed, all non-storm water sample analyses will be sent to a state certified
laboratory. Use Appendix H as a guide.
Sample Documentation Procedures
All original data documented on sample bottle identification labels, Chain of Custody forms, Sampling Activity
Logs, and Inspection Checklists will be recorded using waterproof ink. These will be considered accountable
documents. If an error is made on an accountable document, the individual will make corrections by lining
through the error and entering the correct information. The erroneous information will not be obliterated. All
corrections will be initialed and dated. Copies of the Construction Site Monitoring Checklists are provided in
Appendix F.
Sampling and field analysis activities will be documented using the following:
• Sample Bottle Identification Labels: Sampling personnel will attach an identification label to each
sample bottle. At a minimum, the following information will be recorded on the label, as appropriate:
– Project name
– Project number
– Unique sample identification number and location.
[Project Number]-[Six digit sample collection date]-[Location]
(Example: 0G5304-081801-Upstream).
Quality assurance/quality control (QA/QC) samples shall be identified
similarly using a unique sample number or designation
(Example: 0G5304-081801-DUP1).
– Collection date/time (No time applied to QA/QC samples)
– Analysis constituent
• Sampling Activity Logs: A log of sampling events will identify:
– Sampling date
– Separate times for sample collection of upstream, downstream, run-on, and QA/QC samples
recorded to the nearest minute
– Unique sample identification number and location
– Analysis constituent
– Names of sampling personnel
– Weather conditions (including precipitation amount)
– Field analysis results
– Other pertinent data
• Chain of Custody (COC) forms: All samples to be analyzed by a state certified laboratory will be
accompanied by a COC form provided by the laboratory. Only the sample collectors will sign the COC
form over to the lab. COC procedures will be strictly adhered to for QA/QC purposes.
• Storm Water Quality Construction Inspection Checklists: When applicable, the
Contractor’s storm water inspector will document on the checklist that samples for
sedimentation/siltation and/or turbidity were taken during a rain event.
Ensure that all laboratory analyses are conducted according to test procedures under 40 CFR Part 136, unless
other test procedures have been specified and approved.
4.6
Reporting Requirements and Records Retention
Records of all monitoring inspections are required to remain onsite during the construction period and for a
minimum of three years. All field and lab analyses results shall be kept in the SWPPP document.
Records shall include the following items:
• The date, place, and time of facility inspections, sampling, visual observations (inspections), and/or
measurements, including precipitation;
• The individual(s) who performed the facility inspections, sampling, visual observation (inspections),
and/or measurements;
• The date and approximate time of analyses;
• The individual(s) who performed the analyses;
July 20, 2010
Page 20
•
•
•
•
•
•
•
A summary of all analytical results from the last three years, the method detection limits and reporting
limits, and the analytical techniques or methods used;
Rain gauge readings from site inspections;
QA/QC records and results;
Non-stormwater discharge inspections and visual observations (inspections) and stormwater
discharge visual observation records;
Visual observation and sample collection exemption records
NAL Exceedance Reports ; and
The records of any corrective actions and follow-up activities that resulted from analytical results,
visual observations (inspections), or inspections.
Most reporting will occur in the Annual Report.
In the event that the storm event average of the samples exceeds an applicable NAL, Risk Level 2 dischargers
must electronically submit all storm event sampling results to the SWRCB’s SMARTS no later than 10 days
after the conclusion of the storm event. In addition, the RWQCBs may request the submittal of an NAL
Exceedance Report. The discharger must certify each NAL Exceedance Report in accordance with the
General Permit’s Special Provisions for Construction Activity.
NAL Exceedance Report shall include:
• Analytical methods
• method reporting units
• method detection limits
• The date, place time of sampling, visual observation, and or measurements, including precipitation.
• A description of the BMPs in use at the time and proposed corrective actions.
July 20, 2010
Page 21
Section 5 Annual Reporting Requirements
The General Permit requires all projects that are enrolled for more than one continuous three-month period to
submit information and annually certify that their site is in compliance with the General Permit requirements.
The primary purpose of this requirement is to provide information needed for overall program evaluation and
pubic information.
All dischargers shall prepare and electronically submit an Annual Report no later than September 1 of each
year.
The discharger shall retain an electronic or paper copy of each Annual Report for a minimum of three years
after the date the annual report is filed.
5.1
Storm Water Monitoring
The discharger shall include storm water monitoring information in the Annual Report:
1. A summary and evaluation of all sampling and analysis results, including copies of laboratory reports;
2. The analytical method(s), method reporting unit(s), and method detection limit(s) of each analytical
parameter (analytical results that are less than the method detection limit shall be reported as "less
than the method detection limit");
3. A summary of all corrective actions taken during the compliance year;
4. Identification of any compliance activities or corrective actions that were not implemented;
5. A summary of all violations of the General Permit;
6. The names of individual(s) who performed the facility inspections, sampling, visual observation
(inspections), and/or measurements;
7. The date, place, time of facility inspections, sampling, visual observation (inspections), and/or
measurements, including precipitation (rain gauge); and
8. The visual observation and sample collection exception records and reports specified in this SWPPP.
5.2
Training Information
The discharger shall include documentation of all training for individuals responsible for:
1. All activities associated with compliance with the General Permit.
2. BMP installation, inspection, maintenance, and repair; and
3. Overseeing, revising, and amending the SWPPP
July 20, 2010
Page 22
Section 6 Notice of Termination
Within 90 days of when construction is complete or ownership has been transferred, the discharger shall
electronically file a Notice of Termination (NOT), a final site map, and photos through the State Water Boards
SMARTS system. Filing a NOT certifies that all General Permit requirements have been met. The Regional
Water Board will consider a construction site complete only when all portions of the site have been transferred
to a new owner, or all of the following conditions have been met:
a. For purposes of “final stabilization,” the site will not pose any additional sediment discharge risk than it
did prior to the commencement of construction activity;
b. There is no potential for construction-related storm water pollutants to be discharged into site runoff;
c.
Final stabilization has been reached;
d. Construction materials and wastes have been disposed of properly;
e. Compliance with the Post-Construction Standards in Section XIII of this General Permit has been
demonstrated;
f.
Post-construction storm water management measures have been installed and a long-term
maintenance plan7 has been established; and
g. All construction-related equipment, materials and any temporary BMPs no longer needed are removed
from the site.
The discharger shall certify that final stabilization conditions are satisfied in their NOT. Failure to certify shall
result in continuation of permit coverage and annual billing.
The NOT must demonstrate through photos, RUSLE or RUSLE2, or results of testing and analysis that the site
meets all of the conditions above and the final stabilization condition (Section 5.a) is attained by one of the
following methods:
a. “70% final cover method,” no computational proof required
OR
b. “RUSLE or RUSLE2 method,” computational proof required
OR
c.
“Custom method”, the discharger shall demonstrate in some other manner than a or b, above, that
the site complies with the “final stabilization” requirement in Section II.D.1.a.
July 20, 2010
Page 23
Appendix A
Legally Responsible Person
Documents
Owner’s (or Authorized Representative)
Approval and Cerification of the
Storm Water Pollution Prevention Plan
Project Name: Municipal Water Well #11 and Transmission Water
Main
I certify under penalty of law that this document and all attachments
were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather
and evaluate the information submitted. Based on my inquiry of the
person or persons who manage the system or those persons directly
responsible for gathering the information, to the best of my knowledge
and belief, the information submitted is, true, accurate, and complete. I
am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for
knowing violations.
Owner (or Authorized Representative) Signature
Name and Title
Date
Telephone Number
Authorized Representative (if applicable)
Name:
Telephone Number:
Area of Responsibility:
Qualifications:
I certify that the above named is my Authorized Representative for this
SWPPP.
Owner Signature
Date
Permit Registration Document
To obtain coverage the LRP must electronically file the following PRD’s
with the SWRCB:
•
•
•
•
•
•
Notice of Intent
Risk Assessment
Site Map
SWPPP
Annual Fee
Signed Certification Statement
Notice of Intent
The Notice of Intent (NOI) will be filed on the SWRCB SMARTS website
(http://smarts.waterboards.ca.gov/smarts/faces/SwSmartsLogin.jsp). The NOI
includes owner, developer, and site information, risk determination, billing
information, attachments (SWPPP and Site Map/Erosion and Sediment Control
Plan) and certification.
After the NOI has been submitted, a copy of the SWRCB letter with a check to
the SWRCB.
SWRCB
Storm Water Section
PO Box 1977
Sacramento, CA 95831
A WDID number will be assigned within 1-2 business days. The status of the
permit can be seen at www.waterbaords.ca.gov/ciwqs
Notice of Termination
The Notice of Termination (NOT) will be filed on the SWRCB SMARTS
website upon project completion
(http://smarts.waterboards.ca.gov/smarts/faces/SwSmartsLogin.jsp). The
NOT includes a basis of termination, certification, photos documenting
70% stabilization and storm water requirements. See SWPPP Section 5.
Appendix B
Contractor Information
Qualified SWPPP Manager
Name of QSP:
Telephone Number:
Cell Number:
Qualifications:
Contractor
Name:
Work Address:
Telephone Number:
Area of responsibility:
Sub-contractor
Name:
Work Address:
Telephone Number:
Sub-contractor
Name:
Work Address:
Telephone Number:
Cell Number:
Appendix C
Site Map/
Erosion and Sediment Control Plan
20'
V9
V8
V7
V6
V5
V#
V4
V3
V2
V1
®
WALLACE SWANSON INTERNATIONAL
WATER RESOURCES
SURVEYING / GIS SOLUTIONS
PUBLIC WORKS ADMINISTRATION
PLANNING
MECHANICAL ENGINEERING
LANDSCAPE ARCHITECTURE
CONSTRUCTION MANAGEMENT
CIVIL ENGINEERING
www.wallacegroup.us
V1
V2
A
E
SILT FENCE
Scale: NTS
FIBER ROLLS
Scale: NTS
B
INLET PROTECTION
Scale: NTS
C
CONSTRUCTION ENTRANCE
Scale: NTS
D
CONCRETE WASTE MANAGEMENT
Scale: NTS
®
WALLACE SWANSON INTERNATIONAL
WATER RESOURCES
SURVEYING / GIS SOLUTIONS
PUBLIC WORKS ADMINISTRATION
PLANNING
MECHANICAL ENGINEERING
LANDSCAPE ARCHITECTURE
CONSTRUCTION MANAGEMENT
CIVIL ENGINEERING
www.wallacegroup.us
Appendix D
Risk Determination
Risk Assessment Determination
Construction Site Sediment Risk: Medium
(see Risk Determination Worksheet and Rainfall Erosivity Factor)
Receiving Water: High
Receiving Water Body: Santa Ynez River
According to Risk Determination Worksheet’s Sediment Impaired Waterbodies,
the Santa Ynez River (below City of Lompoc to Ocean) is impaired for
Sedimentation/Siltation. According to the Central Coast Basin Plan (Table 2-1),
the Santa Ynez River has beneficial uses of cold water fisheries, migration AND
spawning.
Overall Risk Level: 2
EPA NPDES - Welcome to the Lower Erosivity Index Calculator
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Facility Name:
Start Date:
End Date:
Latitude:
Longitutde:
Lompoc Well #11
09/07/2010
05/10/2011
34.6431
-120.4332
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AN EROSIVITY INDEX VALUE OF 24.62 HAS BEEN DETERMINED FOR THE CONSTRUCTION
PERIOD OF 09/07/2010 - 05/10/2011.
A rainfall erosivity factor of 5.0 or greater has been calculated for your site and period of
construction. You do not qualify for a waiver from NPDES permitting requirements.
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Last updated on August 07, 2009 3:37 PM
URL:http://cfpub.epa.gov/npdes/stormwater/LEW/erosivity_index_result.cfm
http://cfpub.epa.gov/npdes/stormwater/LEW/erosivity_index_result.cfm
7/6/2010
A
B
C
1 Sediment Risk Factor Worksheet
Entry
2 A) R Factor
Analyses of data indicated that when factors other than rainfall are held constant, soil loss is directly proportional to a
rainfall factor composed of total storm kinetic energy (E) times the maximum 30-min intensity (I30) (Wischmeier and
Smith, 1958). The numerical value of R is the average annual sum of EI30 for storm events during a rainfall record of
at least 22 years. "Isoerodent" maps were developed based on R values calculated for more than 1000 locations in the
3 Western U.S. Refer to the link below to determine the R factor for the project site.
4 http://cfpub.epa.gov/npdes/stormwater/LEW/lewCalculator.cfm
24.62
R Factor Value
5
6 B) K Factor (weighted average, by area, for all site soils)
The soil-erodibility factor K represents: (1) susceptibility of soil or surface material to erosion, (2) transportability of the
sediment, and (3) the amount and rate of runoff given a particular rainfall input, as measured under a standard
condition. Fine-textured soils that are high in clay have low K values (about 0.05 to 0.15) because the particles are
resistant to detachment. Coarse-textured soils, such as sandy soils, also have low K values (about 0.05 to 0.2)
because of high infiltration resulting in low runoff even though these particles are easily detached. Medium-textured
soils, such as a silt loam, have moderate K values (about 0.25 to 0.45) because they are moderately susceptible to
particle detachment and they produce runoff at moderate rates. Soils having a high silt content are especially
susceptible to erosion and have high K values, which can exceed 0.45 and can be as large as 0.65. Silt-size particles
are easily detached and tend to crust, producing high rates and large volumes of runoff. Use Site-specific data must
7 be submitted.
8 Site-specific K factor guidance
1
K Factor Value
9
10 C) LS Factor (weighted average, by area, for all slopes)
The effect of topography on erosion is accounted for by the LS factor, which combines the effects of a hillslope-length
factor, L, and a hillslope-gradient factor, S. Generally speaking, as hillslope length and/or hillslope gradient increase,
soil loss increases. As hillslope length increases, total soil loss and soil loss per unit area increase due to the
progressive accumulation of runoff in the downslope direction. As the hillslope gradient increases, the velocity and
erosivity of runoff increases. Use the LS table located in separate tab of this spreadsheet to determine LS factors.
11 Estimate the weighted LS for the site prior to construction.
12 LS Table
13
14
0
LS Factor Value
15
Watershed Erosion Estimate (=RxKxLS) in tons/acre
16
17
18
19
20
Low Sediment Risk: < 15 tons/acre
Medium Sediment Risk: >=15 and <75 tons/acre
High Sediment Risk: >= 75 tons/acre
24.62
Site Sediment Risk Factor
Medium
Receiving Water (RW) Risk Factor Worksheet
Entry
A. Watershed Characteristics
A.1. Does the disturbed area discharge (either directly or indirectly) to a 303(d)-listed
waterbody impaired by sediment? For help with impaired waterbodies please check the
attached worksheet or visit the link below:
yes/no
Score
2006 Approved Sediment-impared WBs Worksheet
http://www.waterboards.ca.gov/water_issues/programs/tmdl/303d_lists2006_epa.shtml
OR
A.2. Does the disturbed area discharge to a waterbody with designated beneficial uses of
SPAWN & COLD & MIGRATORY?
http://www.ice.ucdavis.edu/geowbs/asp/wbquse.asp
Yes
High
Combined Risk Level Matrix
Receiving Water
Risk
Sediment Risk
Low
Low
High
Medium
High
Level 2
Level 1
Level 2
Level 3
Project Sediment Risk:
Project RW Risk:
Medium
High
Project Combined Risk:
Level 2
2
2
ATTACHMENT A.1
ATTACHMENT A.1
LUP Project Area or Project Section Area Type Determination
Will
≥ 70% of the
construction
activity occur
on paved
surfaces**?
Will areas
disturbed
be returned to preconstruction conditions
or equivalent
condition* at the end
of the day?
Yes
No
Will the
construction
activity occur on
unpaved improved
roads, including their
shoulders or land
immediately
adjacent
to them?
Yes
Yes
No
No
Will > 30%
of the construction
activity occur within the
non-paved shoulders or
land immediately
adjacent to paved
surfaces?
No
This is a
Project
Type 1 LUP
Yes
Will areas
disturbed be
returned to preconstruction conditions
or equivalent
condition* at the end
of the day?
No
E
No
Yes
No
Will areas of
established vegetation
disturbed by the
construction be stabilized
and revegetated by the
end of the project?
Yes
When
required, will
adequate temporary
stabilization BMPs be
installed and maintained until
vegetation is established to
meet the Permit’s minimum
cover requirements for
final stabilization?
Yes
*See Definition of Terms
** Or: “Will < 30% of the soil disturbance occur on unpaved surfaces?
2009-0009-DWQ
1
September 2, 2009
ATTACHMENT A.1
E
ATTACHMENT A.1
LUP Project Area or Project Section Area
Type Determination
Is the
project area or
project section area
located within a
Sediment Sensitive
Watershed*?
Is the
project area or section
located within the flood
plain or flood prone area
(riparian zone) of a
Sensitive Receiving
Water Body*?
Yes
Receiving
Water Risk:
“HIGH”
No
No
Receiving
Water Risk:
“MEDIUM”
Yes
Receiving
Water Risk:
“LOW”
Calculate the Sediment Risk Based on the Attachment C Risk Factor Worksheet
Project Sediment Risk =
“LOW”: <15 tons/acre
“MEDIUM”: ≥ 15 and < 75 tons/acre; or
“HIGH”: ≥ 75 tons/acre
* See Definition of Terms
PROJECT SEDIMENT RISK
RECEIVING
WATER RISK
2009-0009-DWQ
LOW
MEDIUM
HIGH
LOW
Type 1
Type 1
Type 2
MEDIUM
Type 1
Type 2
Type 3
2
HIGH
Type 2
Type 3
Type 3
September 2, 2009
Appendix E
Best Management Practices
Fact Sheets
Risk Level 2 Requirements from Attachment D of the General Permit
Cover and berm loose stockpiled construction materials that are not actively being
used.
Store chemicals in watertight containers (with appropriate secondary containment to
prevent any spillage or leakage) or in a storage shed (completely enclosed).
Minimize exposure of construction materials to precipitation. This does not include
materials and equipment that are designed to be outdoors and exposed to
environmental conditions.
Prevent the off-site tracking of loose construction and landscape materials.
Prevent disposal of any rinse or wash waters or materials on impervious or pervious
site surfaces or into the storm drain system.
Ensure containment of sanitation facilities to prevent discharges of pollutants to the
storm water drainage system or receiving water.
Clean or replace sanitation facilities and inspect them regularly for leaks and spills.
Cover waste disposal containers at the end of every business day and during a rain
event.
Prevent discharges from waste disposal containers to the storm water drainage system
or receiving water.
Contain and securely protect stockpiled waste material from wind and rain at all times
unless actively being used.
Implement procedures that effectively address hazardous and non-hazardous spills.
Equipment and materials for cleanup of spills shall be made available on-site. Spills
and leaks shall be cleaned up immediately and clean-up materials disposed of
properly. Spill response personnel shall be assigned and trained.
Ensure the containment of concrete washout areas and other washout areas that may
contain additional pollutants so there is no discharge into the underlying soil and onto
the surrounding areas.
Prevent oil, grease, or fuel from leaking onto the ground, or into storm drains or surface
waters.
2
Place all equipment or vehicles, which are to be fueled, maintained and stored in a
designated areas fitted with appropriate BMPs
Clean leaks immediately and dispose of leaked material properly.
Contain stockpiled materials such as mulches and topsoil when they are not actively
being used.
Contain all fertilizers and other landscape materials when they are not actively being
used.
Discontinue the application of any erodible landscape material within two (2) days
before a forecasted rain event or during periods of precipitation.
Apply erodible landscape material at quantities and application rates according to
manufacture recommendations or based on written specifications by knowledgeable
and experienced field personnel.
Stack erodible landscape material on pallets and cover or store such material when
they are not being used or applied.
Implement good housekeeping measures to control the air deposition of particulates
such as sediment, nutrients, trash, metals, bacteria, oil and grease and organics, from
site materials and from site operations.
Document all housekeeping BMPs in the SWPPP and REAP(s) in accordance with the
nature and phase of the construction project. Construction phases at traditional land
development projects include Grading and Land Development Phase, Streets and
Utilities, or Vertical Construction.
Wash vehicles and equipment off-site or in a manner that will prevent non-storm water
discharges to surface waters or MS4 storm drain systems.
Sweep streets and pavement in a manner that will prevent unauthorized non-storm
water discharges to surface water or MS4 storm drains.
Provide Soil cover for inactive areas, finished slopes, open space, utility backfill and
completed lots. Limit the use of plastic materials when more environmentally friendly
options exist. Where use of plastic material is necessary, consider use of plastics
resistant to solar degradation.
Maintain effective perimeter controls and stabilize all construction entrances and exists
to sufficiently control erosion and sediment discharges from the site.
3
Any sediment basins shall be designed in accordance with the method provided in
CASQA’s Construction BMP Guidance Handbook.
Active construction areas shall have BMPs implemented to address erosion control,
soil stabilization, and sediment control.
Apply linear sediment controls along the toe of slopes, face of slopes and at grade
breaks of exposed slopes to meet the following requirements.
Critical Slope / Sheet Flow Length Combinations
(Length of shallow, low velocity flows across a site)
Slope Percentage
0-25%
25-50%
Over 50%
Sheet flow length not to exceed
20 feet
15 feet
10 feet
Construction traffic shall use designated entrances and exits equipped with effective
sediment controls to prevent off-site tracking of sediment.
All storm drain inlets and perimeter controls, run-off controls, and pollutant controls at
designated construction entrances and exists shall be maintained to ensure their
continued effectiveness.
Roadways adjacent to the project site shall be swept / vacuumed daily and before a
rain event, and all construction related materials shall be removed from roadways.
All inspection, maintenance repair and sampling activities at the project location shall
be performed or supervised by a Qualified SWPPP Practitioner representing the
discharger. Delegated tasks must be performed by appropriately trained employees.
Inspections and observations by the QSP or persons trained by the QSP shall be
conducted weekly and at least once during each 24-hour period during extended storm
events. Inspections and observations shall identify and record all BMPs that need
maintenance, have failed or could fail to operate as intended.
Repairs to identified BMPs with failures or shortcomings shall be begun, on the
direction of the QSP, within 72 hours and be completed as soon as possible.
An inspection checklist shall be completed for each required inspection. (Appendix F)
4
Appendix F
Construction Site Monitoring
Checklists
• Field Log Sheets
• Maintenance, Inspection and Repair
• Monitoring Activity Log
• Quality Assurance and Quality
Control Tracking
Construction Site Monitoring Plan
Risk Level 1, 2, 3
Visual Inspection Field Log Sheet
Date and Time of Inspection:
Inspection
Type:
Report Date:
□ Weekly □ Before
predicted rain
□ During
□ Following
□ Contained □ Quarterly
rain event
qualifying rain
event
stormwater
release
non-stormwater
Site Information
Construction Site Name: Municipal Well #11 and Transmission Water Main
Construction stage and
completed activities:
Approximate area
of exposed site:
Weather and Observations
Date Rain Predicted to Occur:
Predicted % chance of rain:
Estimate storm beginning:
Estimate storm
duration:_________
(hours)
(date and time)
Observations: If yes identify location
Odors
Yes □
No □
Floating material
Yes □
No □
Suspended Material
Yes □
No □
Sheen
Yes □
No □
Discolorations
Yes □
No □
Turbidity
Yes □
No □
Estimate time since last
storm: ________
(days or hours)
Rain gauge reading:
_______
(inches)
Site Inspections
Outfalls or BMPs Evaluated
Deficiencies Noted
(add additional sheets or attached detailed BMP Inspection Checklists)
Photos Taken:
Yes
□
No
□
Photo Reference IDs:
Corrective Actions Identified (note if SWPPP/REAP change is needed)
Inspector Information
Inspector Name:
Inspector Title:
Signature:
November 2009
Date:
California Stormwater BMP Handbook
Construction
www.casqa.org
D-1
Construction Site Monitoring Plan
Risk Level 2
Effluent Sampling Field Log Sheets
Construction Site Name: Municipal Well #11 and
Transmission Water Main
Date:
Time Start:
Sampler:
Sampling Event Type:
□ Stormwater
□ Non-stormwater
□ Non-visible pollutant
Field Meter Calibration
pH Meter ID No./Desc.:
Calibration Date/Time:
Turbidity Meter ID No./Desc.:
Calibration Date/Time:
Field pH and Turbidity Measurements
Discharge Location Description
pH
Turbidity
Time
Grab Samples Collected
Discharge Location Description
Sample Type
Time
Additional Sampling Notes:
Time End:
November 2009
California Stormwater BMP Handbook
Construction
www.casqa.org
D-2
Maintenance, Inspection, and Repair Program
of Construction Site BMPs
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) TEMPORARY EROSION CONTROL BMPs EC01: Site Scheduling/ Phasing Prior to commencement of
Follow sequencing within SWPPP. If associated activities. sequencing is different than the SWPPP, those modifications must be written into the plan prior to the construction activity. EC02: Preservation of Existing Vegetation EC06: Straw Mulch/Hydroseed/ Tackifier/Soil Amendment Prior to commencement of associated activities. Prior to forecasted rain, daily during extended rain events, after rain events, and weekly.
Update the erosion and sediment control plan / SWPPP if different erosion and sediment controls are installed, other than what is shown on the plan.
Adjust timing of construction activity if contractor schedules change, or if weather patterns become unfavorable.
Verify that protective measures remain in place.
Restore damaged protection measures immediately.
Repair areas where erosion is evident with a reapplication as soon as possible.
Inspect longevity of straw mulch and tackifiers in achieving erosion control.
Maintain an unbroken, temporary mulched ground cover while disturbed soil areas are inactive. Repair any damaged ground cover and remulch exposed areas.
Reapplication of straw mulch and tackifier may be required.
If seed is used, irrigation may be needed to establish vegetation.
Irrigation systems should be inspected for malfunctions, line breaks and coverage.
Where seeds fail to germinate, the area must be re‐seeded within the planting season. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) EC07 Geotextiles and Mat Prior to forecasted rain, daily during Inspect that geotextile maintains an extended rain events, after rain unbroken groundcover, and is uniformily in events, and weekly. contact with the soil. EC10: Velocity Dissipation Devices SE01: Silt Fence Prior to forecasted rain, daily during extended rain events, after rain events, and weekly.
Repair and reapply as soon as possible where erosion is evident.
Ensure that all lap joint are secure and staples are flush with the ground.
Inspect apron for displacement of riprap and damage to underlying fabric. Repair fabric and replace riprap.
Inspect for scour beneath the riprap and around the outlet. Repair damage to slopes or underlying filter fabric immediately. TEMPORARY SEDIMENT CONTROL BMPs Prior to forecasted rain, daily during Repair any undercut or scoured areas extended rain events, after rain immediately. events, and weekly.
Repair or replace any split, torn, collapsed, or decomposed silt fence fabric within 24 hours of discovery.
All sediment deposits must be periodically removed in order to maintain effectiveness. Remove silt deposits once they reach 1/3 the barrier height. Sediment removed may be spread into the earthwork of the site or be disposed of at an appropriate location. Do not place collected sediment in a place where it will wash into ditches, channels, or streams.
Do not remove silt fences until the disturbed area has established permanent vegetation.
Immediately repair any disturbances (such as holes or depressions) created while removing the silt fence. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) SE05: Fiber Rolls Prior to forecasted rain, daily during Ensure the rolls remain anchored in place extended rain events, after rain and are not damaged or weathered. events, and weekly.
Repair or replace ripped, split, unraveled, or weathered fiber rolls within 24 hours of discovery. SE10: Storm Drain Inlet Protection WE01: Wind Erosion Control SE07: Vacuum Type Sweeper Prior to forecasted rain, daily during extended rain events, after rain events, and weekly.
Remove sediment when accumulation reaches 1/3 of the rolls height. Sediment removed may be spread into the earthwork of the site or be disposed of at an appropriate location. Do not place collected sediment in a place where it will wash into ditches, channels, or streams.
Fiber rolls can be removed or left in place after vegetation is established. Over time they decompose into mulch and the netting breaks into smaller pieces.
Remove accumulated sediment when the sediment reaches ½ of the barrier height.
Replace or repair protection as needed. WIND EROSION CONTROL BMPs Prior to commencement of
Observe air quality to ensure BMPs are associated activities, verify that adequate. BMPs are in place and weekly.
Observe traffic speed limits and enforce speed limits on‐site.
Inspect site to ensure minimal soil surfaces are exposed; employ temporary cover BMPs as needed.
Inspect soil surfaces and ensure surfaces are scarified. TRACKING CONTROL BMPs Daily during non‐hauling events,
hourly during hauling events and weekly. Scrape and sweep within 24 hours of detecting sediment tracking.
Properly dispose of vacuumed materials according to local regulations.
Sweep multiple times per day, if necessary during continuous or frequent hauling activities. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) TC01: Stabilized Construction Verify that BMPs are in place prior
Routinely top dress using nominal size Entrance to commencement of associated aggregate, or replace rock if it is full of activities. Inspect weekly. sediment. NS01: Water Conservation Practices NS03: Paving and Grinding Operations NS06: Illicit Connection/ Discharge
Sweep the street to remove sediment that is not caught by exit pad.
Inspect adjacent road ditches and other vegetated areas for erosion and sedimentation.
Inspect adjacent streets and roadways to ensure soil tracking is being controlled, and the exit is being used by all vehicles leaving the site. NON‐STORM WATER MANAGEMENT BMPs Inspect prior to the
Repair water equipment as needed to commencement of related prevent unintended discharges. activities.
Inspect BMPs subject to non‐storm water discharges daily. Inspect prior to the commencement of related activities. While activities associated with the BMP are under way, inspect once a week during the rainy season and every two weeks during non‐rainy season to verify continued implementation. Verify that BMPs are in place prior to commencement of associated activities. While activities are underway, inspect weekly.
Sample storm water runoff as necessary.
Inspect and maintain machinery regularly to minimize leaks and drips. Keep ample supplies of drip pans/absorbent materials on site.
Inspect the site regularly to check for any illegal dumping or discharge.
Prohibit employees and subcontractors from disposing of on‐job related debris or materials at the construction site.
Notify the owner of any illicit connections and illegal dumping or discharge incidents at the time of discovery. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) NS09: Vehicle and Equipment Inspect vehicles and equipment for Repair leaks immediately or remove Fueling leaks each day. Inspect and verify equipment from site. that activity based BMPs are in
Ensure ample supplies of cleanup material is place prior to the commencement available on‐site; if not, equipment must be of associated activities. While ordered and available. activities associated with the BMP are under way, inspect once a week If spills are observed, cleanup and properly during the rainy season and every dispose of contaminated materials two weeks during non‐rainy season according to the local state or federal laws; to verify continued restock cleanup material used. implementation.
Verify the reportable quantity of spills and the local response numbers and agencies for California in the SWPPP.
Inspect for fuel quantity of the on‐site container. If the storage capacity is greater than 1,320 gallons the site is subject to 40 CFR Part 112 regulations and must develop Spill Prevention, Control and Countermeasure (SPCC) Plan (www.epa.gov/oilspill/spcc.htm for more information).
Inspect BMPs subject to non‐storm water discharges daily while non‐storm water discharges occur. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) NS10: Vehicle and Equipment Inspect and verify that activity
Inspect and ensure that all maintenance Maintenance based BMPs are in place prior to the activities are occurring in the designated commencement of associated area. activities. While activities
Inspect and ensure BMPs are implemented associated with the BMP are under within the designated area as needed. way, inspect once a week during the rainy season and every two
Restock and verify that all spill containment weeks during non‐rainy season to and cleanup materials are on‐site. verify continued implementation.
Make sure all liquids are stored in secure, labeled, leak proof containers. NS12: Concrete Curing Inspect and verify that activity based BMPs are in place prior to the commencement of associated activities. While activities associated with the BMP are under way, inspect weekly to verify continued implementation.
Inspect vehicles and equipment for leaks each day; repair leaks immediately or remove equipment from site.
The threshold for spills of reportable quantity varies state to state; verify the state reportable quantity of spills and the local response numbers and agencies in the SWPPP.
Inspect petroleum product liquid quantity of the on‐site container. If the combined storage capacity is greater than 1,320 gallons the site is subject to 40 CFR Part 112 regulations and must develop Spill Prevention, Control and Countermeasure (SPCC) Plan (www.epa.gov/oilspill/spcc.htm for more information).
Inspect BMPs subject to non‐storm water discharges daily while non‐storm water discharges occur.
Sample non‐storm water discharges and storm water runoff that contacts uncured and partially cured concrete as required.
Inspect cure containers and spraying equipment for leaks.
Ensure that employees and subcontractors implement appropriate measure for storage, handling and use of curing compounds. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) NS13: Concrete Finishing Inspect and verify that activity
Inspect BMPs subject to non‐storm water based BMPs are in place prior to the discharges daily while non‐storm water commencement of associated discharges occur. activities. Inspect prior to
Sample non‐storm water discharges and forecasted rain event, daily during storm water runoff that contacts uncured rain events, after rain events, and and partially cured concrete as required. weekly.
Sweep or vacuum up debris from sandblasting at the end of each shift.
At the end of each work shift, remove and contain liquid and solid waste from containment structures, if any, and from the general work area.
Inspect containment structures for damage prior to use and prior to the onset of forecasted rain. WASTE MANAGEMENT AND MATERIALS POLLUTION CONTROL BMPs WM01: Material Delivery and Prior to forecasted rain, daily during Keep storage areas clean and well Storage extended rain events, after rain organized, including a list of all materials events, and weekly. on‐site.
Inspect labels on containers for legibility and accuracy.
Repair or replace perimeter controls, containment structures, covers and liners as needed to maintain proper function. WM02: Material Use Verify that activity based BMPs are in place prior to the commencement of associated activities. Inspect prior to forecasted rain, daily during extended rain events, after rain events, and weekly.
Ensure all employees and subcontractor throughout the job area using appropriate practices. WM03: Stockpile Management Inspect prior to forecasted rain, daily during extended rain events, after rain events, and weekly.
Repair and/or replace perimeter controls and covers as needed to keep them functioning properly.
Sediment shall be removed when it reaches on‐third of the barrier height. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) WM04: Spill Prevention and Control Inspect and verify that activity
Update plan to account for previously based BMPs are in place prior to the unknown materials or chemicals. commencement of associated
Regularly inspect areas noted in the SPCP to activities. While activities ensure equipment is available and associated with the BMP are under procedures are posted. way, inspect once a week during the rainy season and every two
Inspect equipment and vehicles for leaks. weeks during non‐rainy season to
Spot‐check material storage and handling verify continued implementation. areas for compliance; clean up as necessary. WM05: Solid Waste Management Inspect and verify that activity based BMPs are in place prior to the commencement of associated activities. While activities associated with the BMP are under way, inspect once a week during the rainy season and every two weeks during non‐rainy season to verify continued implementation.
Ensure containers have proper labeling; label known materials immediately if not labeled.
Report spills or leaks as required by reportable quantity regulations to the proper authorities.
Define local, state, and federal response agencies and contact appropriate agencies in the event of leaks and / or spills.
Repair containment structures, secondary containment, and other perimeter controls upon signs of degradation.
Inspect construction waste area regularly.
Arrange for regular waste collection.
Inspect BMPs subject to non‐storm water discharges daily while non‐storm water discharges occur. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) WM06: Hazardous Waste Inspect and verify that activity
Hazardous waste should be regularly Management based BMPs are in place prior to the collected. commencement of associated
Monitor onsite hazardous waste storage and activities. While activities disposal practices. associated with the BMP are under way, inspect once a week during
Inspect waste storage areas for organization the rainy season and every two and ample cleanup supplies. weeks during non‐rainy season to
Perimeter control, covers and liners should verify continued implementation. be repaired or replaced as needed.
Hazardous spill should be cleaned up and reported in conformance with the applicable Material Safety Data Sheet and instructions posted at the project site.
The National Response Center should be notified of spill of federal reportable quantities (800) 424‐8802.
Also notify the Governors Office of Emergency Services Warning Center (916) 845‐8911
A copy of the hazardous waste manifests should be provided. Maintenance, Inspection and Repair Program
The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP in combination with the Field Log Sheets. All BMPs must be inspected in accordance with the General Permit requirements for the associated project type and risk level 2. In the event of a BMP failure or shortcoming, design changes to the BMP must be made to avoid a potential violation. BEST MANAGEMENT PRACTICES INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM (BMPs) (all controls) WM08: Concrete Waste Inspect and verify that activity
Inspect regularly to ensure containment and Management based BMPs are in place prior to the capacity are adequate; maintain and repair commencement of associated immediately if containment is not adequate. activities. While activities
Clean out the containment area within 7 associated with the BMP are under days once area is 75 % full of material or way, inspect once a week during liquid. the rainy season and every two weeks during non‐rainy season to
Temprorary concrete washout facilities verify continued implementation. should be maintained to provide adequate holding capacity with a minimum freeboard of 4 in. for above grad facilities and 12 in. for below grade facilities. WM09: Sanitary/ Septic Waste Management Inspect and verify that activity based BMPs are in place prior to the commencement of associated activities. Inspect prior to forecasted rain, daily during extended rain events, after rain events, and weekly.
Vacuum and properly dispose of wastewater according to solid waste requirements.
Pick up and properly dispose of solid concrete material according to solid waste requirements.
Remove temporary washout area at the end of its use. This is the responsibility of the contractor.
All material must be disposed of properly. Follow all applicable state and federal regulations regarding solid and liquid waste management.
Educate contractors and subcontractors of dumpster areas and procedures for segregation of material.
Arrange for regular pickup and delivery of dumpsters on‐site.
If high winds are expected, portable sanitary facilities must be secured with spikes or weighed down to prevent over turning.
If spills or leaks occur that are not contained and discharge from the site, non‐visible sampling is required. Maintenance, Inspection and Repair Program
Table 2. Summary of BMP Inspection and Maintenance Frequency Triggered by BMPs Time Specific (Daily/Weekly) Commencement of Related Activities Erosion Control EC01: Site Scheduling/ Phasing EC02: Preservation of Existing Veg. EC06: Straw mulch/Hydroseed/ Tackifier/Soil Amendment EC07: Geotextiles & Mats EC10:Velocity Dissipation Devices Sediment Control SE01: Silt Fence SE05: Fiber Rolls SE10: Storm Drain Inlet Protection Wind Erosion Control WE01: Wind Erosion Control Tracking Control SE07: Vacuum Type Street Sweeper TC01: Stabilized Construction Entrance Non‐Stormwater Management NS01: Water Conservation Practices NS03: Paving and Grinding Operations NS06: Illicit Connection/Discharge NS09: Vehicle and Equipment Fueling NS10: Vehicle and Equipment Maintenance NS12: Concrete Curing NS13: Concrete Finishing Waste Management and Materials Pollution Control WM01: Material Delivery & Storage WM02: Material Use WM03: Stockpile Management WM04: Spill Prevention WM05: Solid Waste Management WM06: Hazardous Waste Management WM08: Concrete Waste Management WM09: Sanitary/Septic Waste Management Triggered by Rain or Rainy Season X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Inspection/ Monitoring Activity Log
GENERAL INFORMATION
Project Name
Municipal Water Well #11 and Transmission Water Main
Project Number
APN 99-141-30 and others
Inspector Name
Signature
Date
Time
Location
Identification #
Inspection Type
□ Weekly
□ Before rain □ During rain □ After rain
□ Contained stormwater release
□ Quarterly non-stormwater
□ Stormwater sampling
□ Weekly
□ Weekly
□ Weekly
□ Weekly
□ Weekly
□ Weekly
Corrective Action
Taken
□ No
□ Yes
Describe:
□ No
□ Yes
Describe:
□ No
□ Yes
Describe:
□ No
□ Yes
Describe:
□ No
□ Yes
Describe:
□ No
□ Yes
Describe:
□ No
□ Yes
Describe:
Quality Assurance and Quality Control Tracking
Laboratory Analysis (if applicable)
The following laboratory will provide an adequate stock of supplies and equipment for monitoring pH, turbidity,
and non-visible pollutants prior to a sampling event, as well as chain of custody forms.
Name of Laboratory:
Address:
Telephone:
Safety practices for sample collection
The following Health and Safety Plan will be followed during sample collection:
Title and publication date of contactor health and safety plan
Field Instruments
The following field instruments will be used to analyze the following constituents:
Field Instrument
Constituent
pH
turbidity
coliform
Field Instrument Calibration and Maintenance Log
Field Instrument
Date of Calibration
Date of Maintenance
Inspection
Appendix G
Rain Event Action Plan Template
Rain Event Action Plan (REAP)
0B
Date:
WDID Number:
Site Information:
Municipal Water Well # 11 and Transmission Water Main
Lompoc, CA
Project Risk Level: □ Risk Level 2
Site Name, City and Zip Code
Site Stormwater Manager Information:
Name, Company, Emergency Phone Number (24/7)
Erosion and Sediment Control Contractor – Labor Force contracted for the site:
Stormwater Sampling Agent:

Current Phase of Construction
Check ALL the boxes below that apply to your site.
Grading and Land Development
Vertical Construction

Inactive Site
Streets and Utilities

Final Landscaping and Site

Other:
Stabilization
Activities Associated with Current Phase(s)
Check ALL the boxes below that apply to your site (some apply to all Phases).
Grading and Land Development:

Demolition

Vegetation Removal

Vegetation Salvage-Harvest

Rough Grade

Finish Grade

Blasting

Soil Amendment(s):

Excavation (_____ ft)

Soils Testing

Rock Crushing

Erosion and Sediment Control

Surveying

Equip. Maintenance/Fueling

Material Delivery and Storage

Other:

Utility Install: water-sewer-gas

Paving Operations

U
Streets and Utilities:
Finish Grade
U

Storm Drain Installation

Material Delivery & Storage

Curb and Gutter/Concrete Pour

Masonry

Other:

Carpentry

Concrete/Forms/Foundation
Masonry

Drywall/Interior Walls

Exterior Siding

Flooring

Final Landscaping & Site Stabilization:

Stabilization

Electrical
Plumbing
HVAC
Insulation
Roofing

Painting
Stucco
Tile
Landscaping & Irrigation
Other:
Vegetation Establishment

E&S Control BMP Removal
Storage Yard/ Material
Removal
Irrigation System Testing

Landscape Installation

Other:
Vertical Construction:
Framing
U

U

Finish Grade

Painting and Touch-Up

Drainage Inlet Stencils

Inlet Filtration

Perm. Water Quality Ponds

Other:

Trash Removal
Other:
Other:
Inactive Construction Site:
E & S Control Device Installation
E & S Control Device Maintenance

U
November 2009

Routine Site Inspection
Street Sweeping
California Stormwater BMP Handbook | www.casqa.org
C-1
Date:
WDID Number:
Trades Active on Site during Current Phase(s)
Check ALL the boxes below that apply to your site

Grading Contractor

Storm Drain Improvement
Surveyor- Soil Technician

Street Improvements

Water Pipe Installation

Sanitary Station Provider

Material Delivery

Sewer Pipe Installation

Electrical

Trenching

Gas Pipe Installation

Carpentry

Concrete Pouring

Electrical Installation

Plumbing

Foundation

Communication Installation

Masonry

Demolition

Erosion and Sediment Control

Material Delivery

Tile Work- Flooring

Equipment
Fueling/Maintenance
Utilities, e.g., Sewer, Electric
Water, Sewer, Electric
Utilities
Rock Products

Painters

Drywall

Roofers

Carpenters

HVAC installers

Stucco

Exterior Siding

Masons

Pest Control: e.g., termite
prevention
Water Feature Installation

Insulation

Landscapers

Utility Line Testers

Fireproofing

Riggers

Irrigation System Installation

Steel Systems

Utility Line Testers

Other:

Trade Contractor Information Provided
Check ALL the boxes below that apply to your site.
Educational Material Handout

Tailgate Meetings

Training Workshop

Contractual Language

Fines and Penalties

Signage

Other:

Other:
16B
Continued on next page.
17B
November 2009
C-2
Date of REAP
WDID Number:
B
Predicted Rain Event Triggered Actions
Below is a list of suggested actions and items to review for this project. Each active Trade should check all material storage
areas, stockpiles, waste management areas, vehicle and equipment storage and maintenance, areas of active soil disturbance,
and areas of active work to ensure the proper implementation of BMPs. Project-wide BMPs should be checked and crossreferenced to the BMP progress map.
Trade or Activity
Suggested action(s) to perform / item(s) to review prior to rain event

Information & Scheduling

Material storage areas

Waste management areas

Trade operations

Site ESC BMPs

Concrete rinse out area

Spill and drips
Material under cover or in sheds (ex: treated woods and metals)
Perimeter control around stockpiles
Other:___________________________________
________________________________________
__________________________________
Dumpsters closed
Drain holes plugged
Recycling bins covered
Sanitary stations bermed and protected from tipping
Other:___________________________________
________________________________________
________________________________________
Exterior operations shut down for event (e.g., no concrete pours or paving)
Soil treatments (e.g.,: fertilizer) ceased within 24 hours of event
Materials and equipment (ex: tools) properly stored and covered
Waste and debris disposed in covered dumpsters or removed from site
Trenches and excavations protected
Perimeter controls around disturbed areas
Fueling and repair areas covered and bermed
Other:___________________________________
________________________________________
__________________________________
Adequate capacity in sediment basins and traps
Site perimeter controls in place
Catch basin and drop inlet protection in place and cleaned
Temporary erosion controls deployed
Temporary perimeter controls deployed around disturbed areas and stockpiles
Roads swept; site ingress and egress points stabilized
Other:___________________________________
________________________________________
__________________________________
Adequate capacity for rain
Wash-out bins covered
Other:___________________________________
________________________________________
__________________________________

All incident spills and drips, including paint, stucco, fuel, and oil cleaned

Drip pans emptied

Other:___________________________________
________________________________________
__________________________________
November 2009
Inform trade supervisors of predicted rain
Check scheduled activities and reschedule as needed
Alert erosion/sediment control provider
Alert sample collection contractor (if applicable)
Schedule staff for extended rain inspections (including weekends & holidays)
Check Erosion and Sediment Control (ESC) material stock
Review BMP progress map
Other:___________________________________
________________________________________
________________________________________
C-3

Other / Discussion /
Diagrams

Continued on next page.
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
________________________________________
Attach a printout of the weather forecast from the NOAA website to the REAP.
I certify under penalty of law that this Rain Event Action Plan (REAP) will be performed in accordance with the General Permit
by me or under my direction or supervision in accordance with a system designed to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief,
true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations.
______________________________________________________Date: __________________________
Qualified SWPPP Practitioner (Use ink please)
November 2009
C-4
Appendix H
Pollutant Testing Guidance Table
Appendix H
Category
Construction Site Material
Visually Observable?
1
Pollutant Indicators 2
Suggested Analyses
Field 3
Laboratory
Hot Asphalt
Asphalt Emulsion
Yes - Rainbow Surface
or Brown Suspension
Visually Observable - No Testing Required
Crumb Rubber
Yes – Black, solid
material
Asphalt Concrete (Any
Type)
or Brown Suspension
Liquid Asphalt (tack coat)
Asphalt Products
Cold Mix
Acids
No
Bleaches
No
Detergents
Yes - Foam
TSP
No
pH
Acidity
Anions (acetic acid,
phosphoric acid, sulfuric
acid, nitric acid,
hydrogen chloride)
pH Meter
Acidity Test Kit
Residual Chlorine
Chlorine
EPA 150.1 (pH)
EPA 300.0 (Anion)
Cleaning Products
Solvents
California Storm Water Quality Handbooks
Construction
January 2003
SM 2310B (Acidity)
SM 4500-CL G (Res.
Chlorine)
Phosphate
EPA 365.3 (Phosphate)
VOC
None
EPA 601/602 or
EPA 624 (VOC)
SVOC
None
EPA 625 (SVOC)
Phosphate
No
DRAFT
2 of 7
Appendix HI
Appendix H
Category
Portland Cement (PCC)
Yes - Milky Liquid
Masonry products
No
1
Suggested Analyses
Field 3
pH Meter
Alkalinity or Acidity Test
Kit
pH
Alkalinity
Methyl Methacrylate
Sealant (Methyl
Methacrylate - MMA)
No
Laboratory
EPA 150.1 (pH)
SM 2320 (Alkalinity)
EPA 625 (SVOC)
None
Cobalt
EPA 200.8 (Metal)
Zinc
Portland Concrete
Cement
&
Masonry Products
Incinerator Bottom Ash
Bottom Ash
Steel Slag
Foundry Sand
Fly Ash
Municipal Solid Waste
No
Mortar
Yes - Milky Liquid
Concrete Rinse Water
Yes - Milky Liquid
Aluminum
Calcium
Vanadium
Calcium Test
Zinc
Acidity
SM 2310B (Acidity)
Alkalinity
Non-Pigmented Curing
Compounds
Construction
January 2003
EPA 200.8 (Metal)
EPA 200.7 (Calcium)
No
pH
DRAFT
pH Meter
Kit
EPA 150.1 (pH)
VOC
EPA 601/602 or
EPA 624 (VOC)
SVOC
EPA 625 (SVOC)
3 of 7
Appendix HI
Appendix H
Category
Landscaping and Other
Products
1
Suggested Analyses
Field 3
Aluminum
Aluminum Sulfate
No
EPA 200.8 (Metal)
TDS Meter
Sulfate
TDS
Sulfate
Sulfur-Elemental
Fertilizers-Inorganic 4
No
Sulfate
Sulfate
EPA 300.0 (Sulfate)
Nitrate
Nitrate
EPA 300.0 (Nitrate)
Phosphate
Phosphate
EPA 365.3 (Phosphate)
Organic Nitrogen
None
EPA 351.3 (TKN)
Potassium
None
EPA 200.8 (Metal)
No
EPA 415.1 (TOC)
Nitrate
EPA 300.0 (Nitrate)
No
Nitrate
Natural Earth (Sand,
Gravel, and Topsoil)
Yes - Cloudiness and
turbidity
Herbicide
No
Organic Nitrogen
EPA 351.3 (TKN)
COD
EPA 410.4 (COD)
Herbicide
None
Pesticide
Pesticide
Lime
Alkalinity
pH
Construction
January 2003
EPA 160.1 (TDS)
EPA 300.0 (Sulfate)
TOC
Fertilizers-Organic
Laboratory
DRAFT
pH Meter
Kit
Check lab for specific
herbicide or pesticide
EPA 150.1 (pH)
4 of 7
Appendix HI
Appendix H
Category
1
Suggested Analyses
Field 3
COD
Portable Toilet Waste
Products
Portable Toilet Waste
Adhesives
Adhesives
Batteries
Polymer/Copolymer
Construction
January 2003
None
EPA 410.4 (COD)
Phenols
Phenol
EPA 420.1 (Phenol)
SVOC
None
EPA 625 (SVOC)
Sulfuric Acid
None
EPA 300.0 (Sulfate)
Lead
None
EPA 200.8 (Metal)
pH
pH Meter
Kit
EPA 150.1 (pH)
Sheen and Odor
Soil
Amendment/Stabilization
Products
6, 7
COD
Yes - Colored Liquid
No
Fuels, Oils, Lubricants
EPA 410.4 (COD)
No
Antifreeze and Other
Vehicle Fluids
Vehicle
Yes
Laboratory
No
DRAFT
Organic Nitrogen
None
EPA 351.3 (TKN)
BOD
None
EPA 405.1 (BOD)
COD
None
EPA 410.4 (COD)
DOC
None
EPA 415.1 (DOC)
Nitrate
Nitrate
EPA 300.0 (Nitrate)
Sulfate
Sulfate
EPA 300.0 (Sulfate)
Nickel
None
EPA 200.8 (Metal)
5 of 7
Appendix HI
Appendix H
Category
Straw/Mulch
Yes - Solids
Lignin Sulfonate
No
Psyllium
No
1
Suggested Analyses
Field 3
Alkalinity
Alkalinity
TDS
TDS Meter
EPA 160.1 (TDS)
COD
TOC
None
COD
Guar/Plant Gums
No
TOC
EPA 415.1 (TOC)
None
EPA 415.1 (TOC)
EPA 200.8 (Metal)
Calcium
pH Meter
Kit
Calcium
EPA 200.7 (Calcium)
Sulfate
Sulfate
EPA 300.0 (Sulfate)
None
EPA 200.8 (Metal)
Total Chromium
EPA 200.8 (Metal)
pH
No
EPA 410.4 (COD)
EPA 410.4 (COD)
Nickel
Gypsum
Laboratory
EPA 150.1 (pH)
Aluminum
Barium
Manganese
Vanadium
Treated Wood Products
Ammoniacal-Copper-ZincArsenate (ACZA)
No
Arsenic
Total Chromium
Copper-Chromium-Arsenic
(CCA)
Construction
January 2003
Copper
DRAFT
6 of 7
Appendix HI
Appendix H
Category
1
Ammoniacal-CopperArsenate (ACA)
Suggested Analyses
Field 3
Laboratory
Zinc
Copper Naphthenate
Creosote
or Brown Suspension
Notes:
1. 1 If specific pollutant is known, analyze only for that specific pollutant. See MSDS to verify.
2. For each construction material, test for one of the pollutant indicators. Bolded pollutant indicates lowest analysis cost or best indicator. However, the
composition of the specific construction material, if known, is the first criterion for selecting which analysis to use.
3. See www.hach.com, www.lamotte.com, www.ysi.com and www.chemetrics.com for some of the test kits
4. If the type of inorganic fertilizer is unknown, analyze for all pollutant indicators listed.
5. Only if special handling requirements are required in the contract documents for aerially deposited lead (ADL)
6. If used with a dye or fiber matrix, it is considered visually observable and no testing is required.
7. Based upon research conducted by the State of California Department of Transportation (Caltrans), the following copolymers/polymers do not discharge
pollutants and water quality sampling and analysis is not required: Super Tak™, M-Binder™, Fish Stik™, Pro40dc™, Fisch-Bond™, and Soil Master
WR™.
Construction
January 2003
DRAFT
7 of 7
Appendix I
Calculations
There are no calculations.
Appendix J
Other Plans and Permits
State Water Resources Control Board
Linda S. Adams
Secretary for
Environmental Protection
Arnold Schwarzenegger
Division of Water Quality
Governor
1001 I Street • Sacramento, California 95814 • (916) 341-5455
Mailing Address: P.O. Box 100 • Sacramento, California • 95812-0100
Fax (916) 341-5463 • http://www.waterboards.ca.gov
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
GENERAL PERMIT FOR
STORM WATER DISCHARGES
ASSOCIATED WITH CONSTRUCTION AND LAND DISTURBANCE
ACTIVITIES
ORDER NO. 2009-0009-DWQ
NPDES NO. CAS000002
This Order was adopted by the State Water Resources Control
Board on:
This Order shall become effective on:
This Order shall expire on:
September 2, 2009
July 1, 2010
September 2, 2014
IT IS HEREBY ORDERED, that this Order supersedes Order No. 99-08-DWQ
except for enforcement purposes. The Discharger shall comply with the
requirements in this Order to meet the provisions contained in Division 7 of the
California Water Code (commencing with section 13000) and regulations
adopted thereunder, and the provisions of the federal Clean Water Act and
regulations and guidelines adopted thereunder.
I, Jeanine Townsend, Clerk to the Board, do hereby certify that this Order with all
attachments is a full, true, and correct copy of an Order adopted by the State
Water Resources Control Board, on September 2, 2009.
AYE:
Vice Chair Frances Spivy-Weber
Board Member Arthur G. Baggett, Jr.
Board Member Tam M. Doduc
NAY:
Chairman Charles R. Hoppin
ABSENT:
None
ABSTAIN:
None
Jeanine Townsend
Clerk to the Board
TABLE OF CONTENTS
I.
FINDINGS ...................................................................................................................................... 1
II.
CONDITIONS FOR PERMIT COVERAGE............................................................................ 14
III.
DISCHARGE PROHIBITIONS ................................................................................................. 20
IV.
SPECIAL PROVISIONS............................................................................................................. 22
V.
EFFLUENT STANDARDS ......................................................................................................... 29
VI.
RECEIVING WATER LIMITATIONS .................................................................................... 32
VII.
TRAINING QUALIFICATIONS AND CERTIFICATION REQUIREMENTS................... 33
VIII.
RISK DETERMINATION .......................................................................................................... 34
IX.
RISK LEVEL 1 REQUIREMENTS........................................................................................... 35
X.
XI.
XII.
ACTIVE TREATMENT SYSTEMS (ATS)............................................................................... 35
XIII.
POST-CONSTRUCTION STANDARDS .................................................................................. 36
XIV.
SWPPP REQUIREMENTS ........................................................................................................ 38
XV.
REGIONAL WATER BOARD AUTHORITIES...................................................................... 39
XVI.
ANNUAL REPORTING REQUIREMENTS............................................................................ 40
LIST OF ATTACHMENTS
Attachment A – Linear Underground/Overhead Requirements
Attachment A.1 – LUP Type Determination
Attachment A.2 – LUP Permit Registration Documents
Attachment B – Permit Registration Documents
Attachment C – Risk Level 1 Requirements
Attachment D – Risk Level 2 Requirements
Attachment E – Risk Level 3 Requirements
Attachment F – Active Treatment System (ATS) Requirements
LIST OF APPENDICES
Appendix 1 – Risk Determination Worksheet
Appendix 2 – Post-Construction Water Balance Performance Standard
Appendix 2.1 – Post-Construction Water Balance Performance Standard Spreadsheet
Appendix 3 – Bioassessment Monitoring Guidelines
Appendix 4 – Adopted/Implemented Sediment TMDLs
Appendix 5 – Glossary
Appendix 6 – Acronyms
Appendix 7 – State and Regional Water Resources Control Board Contacts
i
Order
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. 2009-0009-DWQ
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
GENERAL PERMIT NO. CAS000002
WASTE DISCHARGE REQUIREMENTS
FOR
DISCHARGES OF STORM WATER RUNOFF ASSOCIATED WITH
CONSTRUCTION AND LAND DISTURBANCE ACTIVITIES
I. FINDINGS
A. General Findings
The State Water Resources Control Board (State Water Board) finds that:
1. The federal Clean Water Act (CWA) prohibits certain discharges of
storm water containing pollutants except in compliance with a National
Pollutant Discharge Elimination System (NPDES) permit (Title 33
United States Code (U.S.C.) §§ 1311 and 1342(p); also referred to as
Clean Water Act (CWA) §§ 301 and 402(p)). The U.S. Environmental
Protection Agency (U.S. EPA) promulgates federal regulations to
implement the CWA’s mandate to control pollutants in storm water
runoff discharges. (Title 40 Code of Federal Regulations (C.F.R.)
Parts 122, 123, and 124). The federal statutes and regulations require
discharges to surface waters comprised of storm water associated with
construction activity, including demolition, clearing, grading, and
excavation, and other land disturbance activities (except operations
that result in disturbance of less than one acre of total land area and
which are not part of a larger common plan of development or sale), to
obtain coverage under an NPDES permit. The NPDES permit must
require implementation of Best Available Technology Economically
Achievable (BAT) and Best Conventional Pollutant Control Technology
(BCT) to reduce or eliminate pollutants in storm water runoff. The
NPDES permit must also include additional requirements necessary to
implement applicable water quality standards.
2. This General Permit authorizes discharges of storm water associated
with construction activity so long as the dischargers comply with all
requirements, provisions, limitations and prohibitions in the permit. In
addition, this General Permit regulates the discharges of storm water
associated with construction activities from all Linear
Underground/Overhead Projects resulting in the disturbance of greater
than or equal to one acre (Attachment A).
2009-0009-DWQ
1
September 02, 2009
Order
3. This General Permit regulates discharges of pollutants in storm water
associated with construction activity (storm water discharges) to waters
of the United States from construction sites that disturb one or more
acres of land surface, or that are part of a common plan of
development or sale that disturbs more than one acre of land surface.
4. This General Permit does not preempt or supersede the authority of
local storm water management agencies to prohibit, restrict, or control
storm water discharges to municipal separate storm sewer systems or
other watercourses within their jurisdictions.
5. This action to adopt a general NPDES permit is exempt from the
provisions of Chapter 3 of the California Environmental Quality Act
(CEQA) (Public Resources Code Section 21100, et seq.), pursuant to
Section 13389 of the California Water Code.
6. Pursuant to 40 C.F.R. § 131.12 and State Water Board Resolution No.
68-16,1 which incorporates the requirements of § 131.12 where
applicable, the State Water Board finds that discharges in compliance
with this General Permit will not result in the lowering of water quality
standards, and are therefore consistent with those provisions.
Compliance with this General Permit will result in improvements in
water quality.
7. This General Permit serves as an NPDES permit in compliance with
CWA § 402 and will take effect on July 1, 2010 by the State Water
Board provided the Regional Administrator of the U.S. EPA has no
objection. If the U.S. EPA Regional Administrator objects to its
issuance, the General Permit will not become effective until such
objection is withdrawn.
8. Following adoption and upon the effective date of this General Permit,
the Regional Water Quality Control Boards (Regional Water Boards)
shall enforce the provisions herein.
9. Regional Water Boards establish water quality standards in Basin
Plans. The State Water Board establishes water quality standards in
various statewide plans, including the California Ocean Plan. U.S.
EPA establishes water quality standards in the National Toxic Rule
(NTR) and the California Toxic Rule (CTR).
1
Resolution No. 68-16 generally requires that existing water quality be maintained unless degradation is
justified based on specific findings.
2009-0009-DWQ
2
September 02, 2009
Order
10. This General Permit does not authorize discharges of fill or dredged
material regulated by the U.S. Army Corps of Engineers under CWA §
404 and does not constitute a waiver of water quality certification under
CWA § 401.
11. The primary storm water pollutant at construction sites is excess
sediment. Excess sediment can cloud the water, which reduces the
amount of sunlight reaching aquatic plants, clog fish gills, smother
aquatic habitat and spawning areas, and impede navigation in our
waterways. Sediment also transports other pollutants such as
nutrients, metals, and oils and greases.
12. Construction activities can impact a construction site’s runoff sediment
supply and transport characteristics. These modifications, which can
occur both during and after the construction phase, are a significant
cause of degradation of the beneficial uses established for water
bodies in California. Dischargers can avoid these effects through
better construction site design and activity practices.
13. This General Permit recognizes four distinct phases of construction
activities. The phases are Grading and Land Development Phase,
Streets and Utilities Phase, Vertical Construction Phase, and Final
Landscaping and Site Stabilization Phase. Each phase has activities
that can result in different water quality effects from different water
quality pollutants. This General Permit also recognizes inactive
construction as a category of construction site type.
14. Compliance with any specific limits or requirements contained in this
General Permit does not constitute compliance with any other
applicable requirements.
15. Following public notice in accordance with State and Federal laws and
regulations, the State Water Board heard and considered all comments
and testimony in a public hearing on 06/03/2009. The State Water
Board has prepared written responses to all significant comments.
16. Construction activities obtaining coverage under the General Permit
may have multiple discharges subject to requirements that are specific
to general, linear, and/or active treatment system discharge types.
17. The State Water Board may reopen the permit if the U.S. EPA adopts
a final effluent limitation guideline for construction activities.
2009-0009-DWQ
3
September 02, 2009
Order
B. Activities Covered Under the General Permit
18. Any construction or demolition activity, including, but not limited to,
clearing, grading, grubbing, or excavation, or any other activity that
results in a land disturbance of equal to or greater than one acre.
19. Construction activity that results in land surface disturbances of less
than one acre if the construction activity is part of a larger common
plan of development or the sale of one or more acres of disturbed land
surface.
20. Construction activity related to residential, commercial, or industrial
development on lands currently used for agriculture including, but not
limited to, the construction of buildings related to agriculture that are
considered industrial pursuant to U.S. EPA regulations, such as dairy
barns or food processing facilities.
21. Construction activity associated with Linear Underground/Overhead
Utility Projects (LUPs) including, but not limited to, those activities
necessary for the installation of underground and overhead linear
facilities (e.g., conduits, substructures, pipelines, towers, poles, cables,
wires, connectors, switching, regulating and transforming equipment
and associated ancillary facilities) and include, but are not limited to,
underground utility mark-out, potholing, concrete and asphalt cutting
and removal, trenching, excavation, boring and drilling, access road
and pole/tower pad and cable/wire pull station, substation construction,
substructure installation, construction of tower footings and/or
foundations, pole and tower installations, pipeline installations,
welding, concrete and/or pavement repair or replacement, and
stockpile/borrow locations.
22. Discharges of sediment from construction activities associated with oil
and gas exploration, production, processing, or treatment operations or
transmission facilities.2
23. Storm water discharges from dredge spoil placement that occur
outside of U.S. Army Corps of Engineers jurisdiction (upland sites) and
that disturb one or more acres of land surface from construction activity
are covered by this General Permit. Construction sites that intend to
disturb one or more acres of land within the jurisdictional boundaries of
a CWA § 404 permit should contact the appropriate Regional Water
Board to determine whether this permit applies to the site.
2
Pursuant to the Ninth Circuit Court of Appeals’ decision in NRDC v. EPA (9th Cir. 2008) 526 F.3d 591, and
subsequent denial of the U.S. EPA’s petition for reconsideration in November 2008, oil and gas construction
activities discharging storm water contaminated only with sediment are no longer exempt from the NPDES
program.
2009-0009-DWQ
4
September 02, 2009
Order
C. Activities Not Covered Under the General Permit
24. Routine maintenance to maintain original line and grade, hydraulic
capacity, or original purpose of the facility.
25. Disturbances to land surfaces solely related to agricultural operations
such as disking, harrowing, terracing and leveling, and soil preparation.
26. Discharges of storm water from areas on tribal lands; construction on
tribal lands is regulated by a federal permit.
27. Construction activity and land disturbance involving discharges of
storm water within the Lake Tahoe Hydrologic Unit. The Lahontan
Regional Water Board has adopted its own permit to regulate storm
water discharges from construction activity in the Lake Tahoe
Hydrologic Unit (Regional Water Board 6SLT). Owners of construction
sites in this watershed must apply for the Lahontan Regional Water
Board permit rather than the statewide Construction General Permit.
28. Construction activity that disturbs less than one acre of land surface,
and that is not part of a larger common plan of development or the sale
of one or more acres of disturbed land surface.
29. Construction activity covered by an individual NPDES Permit for storm
water discharges.
30. Discharges from small (1 to 5 acre) construction activities with an
approved Rainfall Erosivity Waiver authorized by U.S. EPA Phase II
regulations certifying to the State Board that small construction activity
will occur only when the Rainfall Erosivity Factor is less than 5 (“R” in
the Revised Universal Soil Loss Equation).
31. Landfill construction activity that is subject to the Industrial General
Permit.
32. Construction activity that discharges to Combined Sewer Systems.
33. Conveyances that discharge storm water runoff combined with
municipal sewage.
34. Discharges of storm water identified in CWA § 402(l)(2), 33 U.S.C. §
1342(l)(2).
2009-0009-DWQ
5
September 02, 2009
Order
35. Discharges occurring in basins that are not tributary or hydrologically
connected to waters of the United States (for more information contact
your Regional Water Board).
D. Obtaining and Modifying General Permit Coverage
36. This General Permit requires all dischargers to electronically file all
Permit Registration Documents (PRDs), Notices of Termination (NOT),
changes of information, annual reporting, and other compliance
documents required by this General Permit through the State Water
Board’s Storm water Multi-Application and Report Tracking System
(SMARTS) website.
37. Any information provided to the Regional Water Board shall comply
with the Homeland Security Act and any other federal law that
concerns security in the United States; any information that does not
comply should not be submitted.
38. This General Permit grants an exception from the Risk Determination
requirements for existing sites covered under Water Quality Orders No.
99-08-DWQ, and No. 2003-0007-DWQ. For certain sites, adding
additional requirements may not be cost effective. Construction sites
covered under Water Quality Order No. 99-08-DWQ shall obtain permit
coverage at the Risk Level 1. LUPs covered under Water Quality
Order No. 2003-0007-DWQ shall obtain permit coverage as a Type 1
LUP. The Regional Water Boards have the authority to require Risk
Determination to be performed on sites currently covered under Water
Quality Orders No. 99-08-DWQ and No. 2003-0007-DWQ where they
deem it necessary. The State Water Board finds that there are two
circumstances when it may be appropriate for the Regional Water
Boards to require a discharger that had filed an NOI under State Water
Board Order No. 99-08-DWQ to recalculate the site’s risk level. These
circumstances are: (1) when the discharger has a demonstrated
history of noncompliance with State Water Board Order No. 99-08DWQ or; (2) when the discharger’s site poses a significant risk of
causing or contributing to an exceedance of a water quality standard
without the implementation of the additional Risk Level 2 or 3
requirements.
E. Prohibitions
39. All discharges are prohibited except for the storm water and non-storm
water discharges specifically authorized by this General Permit or
another NPDES permit. Non-storm water discharges include a wide
variety of sources, including improper dumping, spills, or leakage from
storage tanks or transfer areas. Non-storm water discharges may
2009-0009-DWQ
6
September 02, 2009
Order
contribute significant pollutant loads to receiving waters. Measures to
control spills, leakage, and dumping, and to prevent illicit connections
during construction must be addressed through structural as well as
non-structural Best Management Practices (BMPs)3. The State Water
Board recognizes, however, that certain non-storm water discharges
may be necessary for the completion of construction.
40. This General Permit prohibits all discharges which contain a
hazardous substance in excess of reportable quantities established in
40 C.F.R. §§ 117.3 and 302.4, unless a separate NPDES Permit has
been issued to regulate those discharges.
41. This General Permit incorporates discharge prohibitions contained in
water quality control plans, as implemented by the State Water Board
and the nine Regional Water Boards.
42. Pursuant to the Ocean Plan, discharges to Areas of Special Biological
Significance (ASBS) are prohibited unless covered by an exception
that the State Water Board has approved.
43. This General Permit prohibits the discharge of any debris4 from
construction sites. Plastic and other trash materials can cause
negative impacts to receiving water beneficial uses. The State Water
Board encourages the use of more environmentally safe,
biodegradable materials on construction sites to minimize the potential
risk to water quality.
F. Training
44. In order to improve compliance with and to maintain consistent
enforcement of this General Permit, all dischargers are required to
appoint two positions - the Qualified SWPPP Developer (QSD) and the
Qualified SWPPP Practitioner (QSP) - who must obtain appropriate
training. Together with the key stakeholders, the State and Regional
Water Boards are leading the development of this curriculum through a
collaborative organization called The Construction General Permit
(CGP) Training Team.
45. The Professional Engineers Act (Bus. & Prof. Code section 6700, et
seq.) requires that all engineering work must be performed by a
California licensed engineer.
3
BMPs are scheduling of activities, prohibitions of practices, maintenance procedures, and other
management practices to prevent or reduce the discharge of pollutants to waters of the United States. BMPs
also include treatment requirements, operating procedures, and practice to control site runoff, spillage or
leaks, sludge or waste disposal, or drainage from raw material storage.
4
Litter, rubble, discarded refuse, and remains of destroyed inorganic anthropogenic waste.
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G. Determining and Reducing Risk
46. The risk of accelerated erosion and sedimentation from wind and water
depends on a number of factors, including proximity to receiving water
bodies, climate, topography, and soil type.
47. This General Permit requires dischargers to assess the risk level of a
site based on both sediment transport and receiving water risk. This
General Permit contains requirements for Risk Levels 1, 2 and 3, and
LUP Risk Type 1, 2, and 3 (Attachment A). Risk levels are established
by determining two factors: first, calculating the site's sediment risk;
and second, receiving water risk during periods of soil exposure (i.e.
grading and site stabilization). Both factors are used to determine the
site-specific Risk Level(s). LUPs can be determined to be Type 1
based on the flowchart in Attachment A.1.
48. Although this General Permit does not mandate specific setback
distances, dischargers are encouraged to set back their construction
activities from streams and wetlands whenever feasible to reduce the
risk of impacting water quality (e.g., natural stream stability and habitat
function). Because there is a reduced risk to receiving waters when
setbacks are used, this General Permit gives credit to setbacks in the
risk determination and post-construction storm water performance
standards. The risk calculation and runoff reduction mechanisms in
this General Permit are expected to facilitate compliance with any
Regional Water Board and local agency setback requirements, and to
encourage voluntary setbacks wherever practicable.
49. Rain events can occur at any time of the year in California. Therefore,
a Rain Event Action Plan (REAP) is necessary for Risk Level 2 and 3
traditional construction projects (LUPs exempt) to ensure that active
construction sites have adequate erosion and sediment controls
implemented prior to the onset of a storm event, even if construction is
planned only during the dry season.
50. Soil particles smaller than 0.02 millimeters (mm) (i.e., finer than
medium silt) do not settle easily using conventional measures for
sediment control (i.e., sediment basins). Given their long settling time,
dislodging these soils results in a significant risk that fine particles will
be released into surface waters and cause unacceptable downstream
impacts. If operated correctly, an Active Treatment System (ATS5) can
prevent or reduce the release of fine particles from construction sites.
5
An ATS is a treatment system that employs chemical coagulation, chemical flocculation, or electro
coagulation in order to reduce turbidity caused by fine suspended sediment.
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Use of an ATS can effectively reduce a site's risk of impacting
receiving waters.
51. Dischargers located in a watershed area where a Total Maximum Daily
Load (TMDL) has been adopted or approved by the Regional Water
Board or U.S. EPA may be required by a separate Regional Water
Board action to implement additional BMPs, conduct additional
monitoring activities, and/or comply with an applicable waste load
allocation and implementation schedule. Such dischargers may also
be required to obtain an individual Regional Water Board permit
specific to the area.
H. Effluent Standards
52. The State Water Board convened a blue ribbon panel of storm water
experts that submitted a report entitled, “The Feasibility of Numeric
Effluent Limits Applicable to Discharges of Storm Water Associated
with Municipal, Industrial and Construction Activities,” dated
June 19, 2006. The panel concluded that numeric limits or action
levels are technically feasible to control construction storm water
discharges, provided that certain conditions are considered. The panel
also concluded that numeric effluent limitations (NELs) are feasible for
discharges from construction sites that utilize an ATS. The State
Water Board has incorporated the expert panel’s suggestions into this
General Permit, which includes both numeric action levels (NALs) and
NELs for pH and turbidity, and special numeric limits for ATS
discharges.
Numeric Effluent Limitations
53. Discharges of storm water from construction activities may become
contaminated from alkaline construction materials resulting in high pH
(greater than pH 7). Alkaline construction materials include, but are
not limited to, hydrated lime, concrete, mortar, cement kiln dust (CKD),
Portland cement treated base (CTB), fly ash, recycled concrete, and
masonry work. This General Permit includes an NEL for pH (6.0-9.0)
that applies only at sites that exhibit a "high risk of high pH discharge."
A "high risk of high pH discharge" can occur during the complete
utilities phase, the complete vertical build phase, and any portion of
any phase where significant amounts of materials are placed directly
on the land at the site in a manner that could result in significant
alterations to the background pH of any discharges.
54. For Risk Level 3 discharges, this General Permit establishes
technology-based, numeric effluent limitations (NELs) for turbidity of
500 NTU. Exceedances of the turbidity NEL constitutes a violation of
this General Permit.
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55. This General Permit establishes a 5 year, 24 hour (expressed in inches
of rainfall) Compliance Storm Event exemption from the technologybased NELs for Risk Level 3 dischargers.
Determining Compliance with Numeric Limitations
56. This General Permit sets a pH NAL of 6.5 to 8.5, and a turbidity NAL of
250 NTU. The purpose of the NAL and its associated monitoring
requirement is to provide operational information regarding the
performance of the measures used at the site to minimize the
discharge of pollutants and to protect beneficial uses and receiving
waters from the adverse effects of construction-related storm water
discharges. The NALs in this General Permit for pH and turbidity are
not directly enforceable and do not constitute NELs.
57. This General Permit requires dischargers with NAL exceedances to
immediately implement additional BMPs and revise their Storm Water
Pollution Prevention Plans (SWPPPs) accordingly to either prevent
pollutants and authorized non-storm water discharges from
contaminating storm water, or to substantially reduce the pollutants to
levels consistently below the NALs. NAL exceedances are reported in
the State Water Boards SMARTS system, and the discharger is
required to provide an NAL Exceedance Report when requested by a
Regional Water Board.
58. If run-on is caused by a forest fire or any other natural disaster, then
NELs do not apply.
59. Exceedances of the NELs are a violation of this Permit. This General
Permit requires dischargers with NEL exceedances to implement
additional monitoring, BMPs, and revise their SWPPPs accordingly.
Dischargers are required to notify the State and Regional Water
Boards of the violation through the State Water Boards SMARTs
system, and provide an NEL Violation Report sharing additional
information concerning the NEL exceedance.
I. Receiving Water Limitations
60. This General Permit requires all enrolled dischargers to determine the
receiving waters potentially affected by their discharges and to comply
with all applicable water quality standards, including any more stringent
standards applicable to a water body.
J. Sampling, Monitoring, Reporting and Record Keeping
61. Visual monitoring of storm water and non-storm water discharges is
required for all sites subject to this General Permit.
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62. Records of all visual monitoring inspections are required to remain onsite during the construction period and for a minimum of three years.
63. For all Risk Level 3 and Risk Level 2 sites, this General Permit
requires effluent monitoring for pH and turbidity. Sampling, analysis
and monitoring requirements for effluent monitoring for pH and turbidity
are contained in this General Permit.
64. Risk Level 3 sites in violation of the Numeric Effluent Limitations
contained in this General Permit and with direct discharges to receiving
water are required to conduct receiving water monitoring.
65. For Risk Level 3 sites larger than 30 acres and with direct discharges
to receiving waters, this General Permit requires bioassessment
sampling before and after site completion to determine if significant
degradation to the receiving water’s biota has occurred.
Bioassessment sampling guidelines are contained in this General
Permit.
66. A summary and evaluation of the sampling and analysis results will be
submitted in the Annual Reports.
67. This General Permit contains sampling, analysis and monitoring
requirements for non-visible pollutants at all sites subject to this
General Permit.
68. Compliance with the General Permit relies upon dischargers to
electronically self-report any discharge violations and to comply with
any Regional Water Board enforcement actions.
69. This General Permit requires that all dischargers maintain a paper or
electronic copy of all required records for three years from the date
generated or date submitted, whichever is last. These records must be
available at the construction site until construction is completed. For
LUPs, these documents may be retained in a crew member’s vehicle
and made available upon request.
K. Active Treatment System (ATS) Requirements
70. Active treatment systems add chemicals to facilitate flocculation,
coagulation and filtration of suspended sediment particles. The
uncontrolled release of these chemicals to the environment can
negatively affect the beneficial uses of receiving waters and/or degrade
water quality (e.g., acute and chronic toxicity). Additionally, the batch
storage and treatment of storm water through an ATS' can potentially
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September 02, 2009
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cause physical impacts on receiving waters if storage volume is
inadequate or due to sudden releases of the ATS batches and
improperly designed outfalls.
71. If designed, operated and maintained properly an ATS can achieve
very high removal rates of suspended sediment (measured as
turbidity), albeit at sometimes significantly higher costs than traditional
erosion/sediment control practices. As a result, this General Permit
establishes NELs consistent with the expected level of typical ATS
performance.
72. This General Permit requires discharges of storm water associated
with construction activity that undergo active treatment to comply with
special operational and effluent limitations to ensure that these
discharges do not adversely affect the beneficial uses of the receiving
waters or cause degradation of their water quality.
73. For ATS discharges, this General Permit establishes technology-based
NELs for turbidity.
74. This General Permit establishes a 10 year, 24 hour (expressed in
inches of rainfall) Compliance Storm Event exemption from the
technology-based numeric effluent limitations for ATS discharges.
Exceedances of the ATS turbidity NEL constitutes a violation of this
General Permit.
L. Post-Construction Requirements
75. This General Permit includes performance standards for postconstruction that are consistent with State Water Board Resolution No.
2005-0006, "Resolution Adopting the Concept of Sustainability as a
Core Value for State Water Board Programs and Directing Its
Incorporation," and 2008-0030, “Requiring Sustainable Water
Resources Management.“ The requirement for all construction sites to
match pre-project hydrology will help ensure that the physical and
biological integrity of aquatic ecosystems are sustained. This “runoff
reduction” approach is analogous in principle to Low Impact
Development (LID) and will serve to protect related watersheds and
waterbodies from both hydrologic-based and pollution impacts
associated with the post-construction landscape.
76. LUP projects are not subject to post-construction requirements due to
the nature of their construction to return project sites to preconstruction conditions.
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M. Storm Water Pollution Prevention Plan Requirements
77. This General Permit requires the development of a site-specific
SWPPP. The SWPPP must include the information needed to
demonstrate compliance with all requirements of this General Permit,
and must be kept on the construction site and be available for review.
The discharger shall ensure that a QSD develops the SWPPP.
78. To ensure proper site oversight, this General Permit requires a
Qualified SWPPP Practitioner to oversee implementation of the BMPs
required to comply with this General Permit.
N. Regional Water Board Authorities
79. Regional Water Boards are responsible for implementation and
enforcement of this General Permit. A general approach to permitting
is not always suitable for every construction site and environmental
circumstances. Therefore, this General Permit recognizes that
Regional Water Boards must have some flexibility and authority to
alter, approve, exempt, or rescind permit authority granted under this
General Permit in order to protect the beneficial uses of our receiving
waters and prevent degradation of water quality.
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IT IS HEREBY ORDERED that all dischargers subject to this General Permit
shall comply with the following conditions and requirements (including all
conditions and requirements as set forth in Attachments A, B, C, D, E and F)6:
II. CONDITIONS FOR PERMIT COVERAGE
A. Linear Underground/Overhead Projects (LUPs)
1. Linear Underground/Overhead Projects (LUPs) include, but are not
limited to, any conveyance, pipe, or pipeline for the transportation of
any gaseous, liquid (including water and wastewater for domestic
municipal services), liquescent, or slurry substance; any cable line or
wire for the transmission of electrical energy; any cable line or wire for
communications (e.g. telephone, telegraph, radio or television
messages); and associated ancillary facilities. Construction activities
associated with LUPs include, but are not limited to, (a) those activities
necessary for the installation of underground and overhead linear
facilities (e.g., conduits, substructures, pipelines, towers, poles, cables,
wires, connectors, switching, regulating and transforming equipment,
and associated ancillary facilities); and include, but are not limited to,
(b) underground utility mark-out, potholing, concrete and asphalt
cutting and removal, trenching, excavation, boring and drilling, access
road and pole/tower pad and cable/wire pull station, substation
construction, substructure installation, construction of tower footings
and/or foundations, pole and tower installations, pipeline installations,
welding, concrete and/ or pavement repair or replacement, and
stockpile/borrow locations.
2. The utility company, municipality, or other public or private company or
agency that owns or operates the linear underground/overhead project
is responsible for obtaining coverage under the General Permit where
the construction of pipelines, utility lines, fiber-optic cables, or other
linear underground/overhead projects will occur across several
properties unless the LUP construction activities are covered under
another construction storm water permit.
3. Only LUPs shall comply with the conditions and requirements in
Attachment A, A.1 & A.2 of this Order. The balance of this Order is not
applicable to LUPs except as indicated in Attachment A.
B. Obtaining Permit Coverage Traditional Construction Sites
6
These attachments are part of the General Permit itself and are not separate documents that are capable
of being updated independently by the State Water Board.
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1. The Legally Responsible Person (LRP) (see Special Provisions,
Electronic Signature and Certification Requirements, Section IV.I.1)
must obtain coverage under this General Permit.
2. To obtain coverage, the LRP must electronically file Permit
Registration Documents (PRDs) prior to the commencement of
construction activity. Failure to obtain coverage under this General
Permit for storm water discharges to waters of the United States is a
violation of the CWA and the California Water Code.
3. PRDs shall consist of:
a.
b.
c.
d.
e.
f.
Notice of Intent (NOI)
Risk Assessment (Section VIII)
Site Map
Storm Water Pollution Prevention Plan (Section XIV)
Annual Fee
Signed Certification Statement
Any information provided to the Regional Water Board shall comply
with the Homeland Security Act and any other federal law that
concerns security in the United States; any information that does not
comply should not be submitted.
Attachment B contains additional PRD information. Dischargers must
electronically file the PRDs, and mail the appropriate annual fee to the
State Water Board.
4. This permit is effective on July 1, 2010.
a. Dischargers Obtaining Coverage On or After July 1, 2010: All
dischargers requiring coverage on or after July 1, 2010, shall
electronically file their PRDs prior to the commencement of
construction activities, and mail the appropriate annual fee no later
than seven days prior to the commencement of construction
activities. Permit coverage shall not commence until the PRDs and
the annual fee are received by the State Water Board, and a WDID
number is assigned and sent by SMARTS.
b. Dischargers Covered Under 99-08-DWQ and 2003-0007-DWQ:
Existing dischargers subject to State Water Board Order No. 99-08DWQ (existing dischargers) will continue coverage under 99-08DWQ until July 1, 2010. After July 1, 2010, all NOIs subject to
State Water Board Order No. 99-08-DWQ will be terminated.
Existing dischargers shall electronically file their PRDs no later than
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July 1, 2010. If an existing discharger’s site acreage subject to the
annual fee has changed, it shall mail a revised annual fee no less
than seven days after receiving the revised annual fee notification,
or else lose permit coverage. All existing dischargers shall be
exempt from the risk determination requirements in Section VIII of
this General Permit until two years after permit adoption. All
existing dischargers are therefore subject to Risk Level 1
requirements regardless of their site’s sediment and receiving water
risks. However, a Regional Board retains the authority to require
an existing discharger to comply with the Section VIII risk
determination requirements.
5. The discharger is only considered covered by this General Permit upon
receipt of a Waste Discharger Identification (WDID) number assigned
and sent by the State Water Board Storm water Multi-Application and
Report Tracking System (SMARTS). In order to demonstrate
compliance with this General Permit, the discharger must obtain a
WDID number and must present documentation of a valid WDID upon
demand.
6. During the period this permit is subject to review by the U.S. EPA, the
prior permit (State Water Board Order No. 99-08-DWQ) remains in
effect. Existing dischargers under the prior permit will continue to have
coverage under State Water Board Order No. 99-08-DWQ until this
General Permit takes effect on July 1, 2010. Dischargers who
complete their projects and electronically file an NOT prior to July 1,
2010, are not required to obtain coverage under this General Permit.
7. Small Construction Rainfall Erosivity Waiver
EPA’s Small Construction Erosivity Waiver applies to sites between
one and five acres demonstrating that there are no adverse water
quality impacts.
Dischargers eligible for a Rainfall Erosivity Waiver based on low
erosivity potential shall complete the electronic Notice of Intent (NOI)
and Sediment Risk form through the State Water Board’s SMARTS
system, certifying that the construction activity will take place during a
period when the value of the rainfall erosivity factor is less than five.
Where the LRP changes or another LRP is added during construction,
the new LRP must also submit a waiver certification through the
SMARTS system.
If a small construction site continues beyond the projected completion
date given on the waiver certification, the LRP shall recalculate the
rainfall erosivity factor for the new project duration and submit this
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September 02, 2009
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information through the SMARTS system. If the new R factor is below
five (5), the discharger shall update through SMARTS all applicable
information on the waiver certification and retain a copy of the revised
waiver onsite. The LRP shall submit the new waiver certification 30
days prior to the projected completion date listed on the original waiver
form to assure exemption from permitting requirements is
uninterrupted. If the new R factor is five (5) or above, the LRP shall be
required to apply for coverage under this Order.
8. In the case of a public emergency that requires immediate construction
activities, a discharger shall submit a brief description of the
emergency construction activity within five days of the onset of
construction, and then shall submit all PRDs within thirty days.
C. Revising Permit Coverage for Change of Acreage or New Ownership
1. The discharger may reduce or increase the total acreage covered
under this General Permit when a portion of the site is complete and/or
conditions for termination of coverage have been met (See Section II.D
Conditions for Termination of Coverage); when ownership of a portion
of the site is sold to a different entity; or when new acreage, subject to
this General Permit, is added to the site.
2. Within 30 days of a reduction or increase in total disturbed acreage,
the discharger shall electronically file revisions to the PRDs that
include:
a. A revised NOI indicating the new project size;
b. A revised site map showing the acreage of the site completed,
acreage currently under construction, acreage sold/transferred or
added, and acreage currently stabilized in accordance with the
Conditions for Termination of Coverage in Section II.D below.
c. SWPPP revisions, as appropriate; and
d. Certification that any new landowners have been notified of
applicable requirements to obtain General Permit coverage. The
certification shall include the name, address, telephone number,
and e-mail address of the new landowner.
e. If the project acreage has increased, dischargers shall mail
payment of revised annual fees within 14 days of receiving the
revised annual fee notification.
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3. The discharger shall continue coverage under the General Permit for
any parcel that has not achieved “Final Stabilization” as defined in
Section II.D.
4. When an LRP owns property with active General Permit coverage, and
the LRP sells the property, or a parcel thereof, to another person, that
person shall become an LRP with respect to whatever parcel was sold.
The existing LRP shall inform the new LRP of the General Permit’s
requirements. In order for the new LRP to continue the construction
activity on its parcel of property, the new LRP, or the new LRP’s
approved signatory, must submit PRDs in accordance with this
General Permit’s requirements.
D. Conditions for Termination of Coverage
1. Within 90 days of when construction is complete or ownership has
been transferred, the discharger shall electronically file a Notice of
Termination (NOT), a final site map, and photos through the State
Water Boards SMARTS system. Filing a NOT certifies that all General
Permit requirements have been met. The Regional Water Board will
consider a construction site complete only when all portions of the site
have been transferred to a new owner, or all of the following conditions
have been met:
a. For purposes of “final stabilization,” the site will not pose any
additional sediment discharge risk than it did prior to the
commencement of construction activity;
b. There is no potential for construction-related storm water pollutants
to be discharged into site runoff;
c. Final stabilization has been reached;
d. Construction materials and wastes have been disposed of properly;
e. Compliance with the Post-Construction Standards in Section XIII of
this General Permit has been demonstrated;
f. Post-construction storm water management measures have been
installed and a long-term maintenance plan7 has been established;
and
7
For the purposes of this requirement a long-term maintenance plan will be designed for a minimum of five
years, and will describe the procedures to ensure that the post-construction storm water management
measures are adequately maintained.
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g. All construction-related equipment, materials and any temporary
BMPs no longer needed are removed from the site.
2. The discharger shall certify that final stabilization conditions are
satisfied in their NOT. Failure to certify shall result in continuation of
permit coverage and annual billing.
3. The NOT must demonstrate through photos, RUSLE or RUSLE2, or
results of testing and analysis that the site meets all of the conditions
above (Section II.D.1) and the final stabilization condition (Section
II.D.1.a) is attained by one of the following methods:
a. “70% final cover method,” no computational proof required
OR:
b. “RUSLE or RUSLE2 method,” computational proof required
OR:
c. “Custom method”, the discharger shall demonstrate in some other
manner than a or b, above, that the site complies with the “final
stabilization” requirement in Section II.D.1.a.
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III. DISCHARGE PROHIBITIONS
A. Dischargers shall not violate any discharge prohibitions contained in
applicable Basin Plans or statewide water quality control plans. Waste
discharges to Areas of Special Biological Significance (ASBS) are
prohibited by the California Ocean Plan, unless granted an exception
issued by the State Water Board.
B. All discharges are prohibited except for the storm water and non-storm
water discharges specifically authorized by this General Permit or another
NPDES permit.
C. Authorized non-storm water discharges may include those from dechlorinated potable water sources such as: fire hydrant flushing, irrigation
of vegetative erosion control measures, pipe flushing and testing, water to
control dust, uncontaminated ground water from dewatering, and other
discharges not subject to a separate general NPDES permit adopted by a
Regional Water Board. The discharge of non-storm water is authorized
under the following conditions:
1. The discharge does not cause or contribute to a violation of any water
quality standard;
2. The discharge does not violate any other provision of this General
Permit;
3. The discharge is not prohibited by the applicable Basin Plan;
4. The discharger has included and implemented specific BMPs required
by this General Permit to prevent or reduce the contact of the nonstorm water discharge with construction materials or equipment.
5. The discharge does not contain toxic constituents in toxic amounts or
(other) significant quantities of pollutants;
6. The discharge is monitored and meets the applicable NALs and NELs;
and
7. The discharger reports the sampling information in the Annual Report.
If any of the above conditions are not satisfied, the discharge is not
authorized by this General Permit. The discharger shall notify the
Regional Water Board of any anticipated non-storm water discharges not
already authorized by this General Permit or another NPDES permit, to
determine whether a separate NPDES permit is necessary.
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D. Debris resulting from construction activities are prohibited from being
discharged from construction sites.
E. When soil contamination is found or suspected and a responsible party is
not identified, or the responsible party fails to promptly take the
appropriate action, the discharger shall have those soils sampled and
tested to ensure proper handling and public safety measures are
implemented. The discharger shall notify the appropriate local, State, and
federal agency(ies) when contaminated soil is found at a construction site,
and will notify the appropriate Regional Water Board.
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IV. SPECIAL PROVISIONS
A. Duty to Comply
1. The discharger shall comply with all of the conditions of this General
Permit. Any permit noncompliance constitutes a violation of the Clean
Water Act (CWA) and the Porter-Cologne Water Quality Control Act
and is grounds for enforcement action and/or removal from General
Permit coverage.
2. The discharger shall comply with effluent standards or prohibitions
established under Section 307(a) of the CWA for toxic pollutants within
the time provided in the regulations that establish these standards or
prohibitions, even if this General Permit has not yet been modified to
incorporate the requirement.
B. General Permit Actions
1. This General Permit may be modified, revoked and reissued, or
terminated for cause. The filing of a request by the discharger for a
General Permit modification, revocation and reissuance, or
termination, or a notification of planned changes or anticipated
noncompliance does not annul any General Permit condition.
2. If any toxic effluent standard or prohibition (including any schedule of
compliance specified in such effluent standard or prohibition) is
promulgated under Section 307(a) of the CWA for a toxic pollutant
which is present in the discharge and that standard or prohibition is
more stringent than any limitation on the pollutant in this General
Permit, this General Permit shall be modified or revoked and reissued
to conform to the toxic effluent standard or prohibition and the
dischargers so notified.
C. Need to Halt or Reduce Activity Not a Defense
It shall not be a defense for a discharger in an enforcement action that it
would have been necessary to halt or reduce the permitted activity in
order to maintain compliance with the conditions of this General Permit.
D. Duty to Mitigate
The discharger shall take all responsible steps to minimize or prevent any
discharge in violation of this General Permit, which has a reasonable
likelihood of adversely affecting human health or the environment.
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E. Proper Operation and Maintenance
The discharger shall at all times properly operate and maintain any
facilities and systems of treatment and control (and related
appurtenances) which are installed or used by the discharger to achieve
compliance with the conditions of this General Permit. Proper operation
and maintenance also includes adequate laboratory controls and
appropriate quality assurance procedures. Proper operation and
maintenance may require the operation of backup or auxiliary facilities or
similar systems installed by a discharger when necessary to achieve
compliance with the conditions of this General Permit.
F. Property Rights
This General Permit does not convey any property rights of any sort or
any exclusive privileges, nor does it authorize any injury to private
property or any invasion of personal rights, nor does it authorize any
infringement of Federal, State, or local laws or regulations.
G. Duty to Maintain Records and Provide Information
1. The discharger shall maintain a paper or electronic copy of all required
records, including a copy of this General Permit, for three years from
the date generated or date submitted, whichever is last. These
records shall be available at the construction site until construction is
completed.
2. The discharger shall furnish the Regional Water Board, State Water
Board, or U.S. EPA, within a reasonable time, any requested
information to determine compliance with this General Permit. The
discharger shall also furnish, upon request, copies of records that are
required to be kept by this General Permit.
H. Inspection and Entry
The discharger shall allow the Regional Water Board, State Water Board,
U.S. EPA, and/or, in the case of construction sites which discharge
through a municipal separate storm sewer, an authorized representative of
the municipal operator of the separate storm sewer system receiving the
discharge, upon the presentation of credentials and other documents as
may be required by law, to:
1. Enter upon the discharger’s premises at reasonable times where a
regulated construction activity is being conducted or where records
must be kept under the conditions of this General Permit;
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2. Access and copy at reasonable times any records that must be kept
under the conditions of this General Permit;
3. Inspect at reasonable times the complete construction site, including
any off-site staging areas or material storage areas, and the
erosion/sediment controls; and
4. Sample or monitor at reasonable times for the purpose of ensuring
General Permit compliance.
I. Electronic Signature and Certification Requirements
1. All Permit Registration Documents (PRDs) and Notice of Terminations
(NOTs) shall be electronically signed, certified, and submitted via
SMARTS to the State Water Board. Either the Legally Responsible
Person (LRP) or a person legally authorized to sign and certify PRDs
and NOTs on behalf of the LRP (the LRP’s Approved Signatory) must
submit all information electronically via SMARTS.
a. The LRP’s Approved Signatory must be one of the following:
i. For a corporation: 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 facility if
authority to sign documents has been assigned or delegated to
the manager in accordance with corporate procedures;
ii. For a partnership or sole proprietorship: a general partner or the
proprietor, respectively;
iii. For a municipality, State, Federal, or other public agency: either
a principal executive officer or ranking elected official. The
principal executive officer of a 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
U.S. EPA);
iv. For the military: Any military officer who has been designated.
v. For a public university: An authorized university official
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b. Changes to Authorization. If an approved signatory’s authorization
is no longer accurate, a new authorization satisfying the
requirements of paragraph (a) of this section must be submitted via
SMARTS prior to or together with any reports, information or
applications to be signed by an approved signatory.
2. All Annual Reports, or other information required by the General Permit
(other than PRDs and NOTs) or requested by the Regional Water
Board, State Water Board, U.S. EPA, or local storm water
management agency shall be certified and submitted by the LRP or
the LRP’s approved signatory as described above.
J. Certification
Any person signing documents under Section IV.I above, shall make the
following certification:
"I certify under penalty of law that this document and all attachments were
prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person or persons
who manage the system or those persons directly responsible for
gathering the information, to the best of my knowledge and belief, the
information submitted is, true, accurate, and complete. I am aware that
there are significant penalties for submitting false information, including
the possibility of fine and imprisonment for knowing violations."
K. Anticipated Noncompliance
The discharger shall give advance notice to the Regional Water Board and
local storm water management agency of any planned changes in the
construction activity, which may result in noncompliance with General
Permit requirements.
L. Bypass
Bypass8 is prohibited. The Regional Water Board may take enforcement
action against the discharger for bypass unless:
1. Bypass was unavoidable to prevent loss of life, personal injury or
severe property damage;9
8
The intentional diversion of waste streams from any portion of a treatment facility
Severe property damage means substantial physical damage to property, damage to the treatment
facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that
can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean
economic loss caused by delays in production.
9
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2. There were no feasible alternatives to bypass, such as the use of
auxiliary treatment facilities, retention of untreated waste, or
maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate back-up equipment should have
been installed in the exercise of reasonable engineering judgment to
prevent a bypass that could occur during normal periods of equipment
downtime or preventative maintenance;
3. The discharger submitted a notice at least ten days in advance of the
need for a bypass to the Regional Water Board; or
4. The discharger may allow a bypass to occur that does not cause
effluent limitations to be exceeded, but only if it is for essential
maintenance to assure efficient operation. In such a case, the above
bypass conditions are not applicable. The discharger shall submit
notice of an unanticipated bypass as required.
M. Upset
1. A discharger that wishes to establish the affirmative defense of an
upset10 in an action brought for noncompliance shall demonstrate,
through properly signed, contemporaneous operating logs, or other
relevant evidence that:
a. An upset occurred and that the discharger can identify the cause(s)
of the upset
b. The treatment facility was being properly operated by the time of
the upset
c. The discharger submitted notice of the upset as required; and
d. The discharger complied with any remedial measures required
2. No determination made before an action of noncompliance occurs,
such as during administrative review of claims that noncompliance was
caused by an upset, is final administrative action subject to judicial
review.
3. In any enforcement proceeding, the discharger seeking to establish the
occurrence of an upset has the burden of proof
10
An exceptional incident in which there is unintentional and temporary noncompliance the technology
based numeric effluent limitations because of factors beyond the reasonable control of the discharger. An
upset does not include noncompliance to the extent caused by operational error, improperly designed
treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper
operation.
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N. Penalties for Falsification of Reports
Section 309(c)(4) of the CWA provides that any person who knowingly
makes any false material statement, representation, or certification in any
record or other document submitted or required to be maintained under
this General Permit, including reports of compliance or noncompliance
shall upon conviction, be punished by a fine of not more than $10,000 or
by imprisonment for not more than two years or by both.
O. Oil and Hazardous Substance Liability
Nothing in this General Permit shall be construed to preclude the
institution of any legal action or relieve the discharger from any
responsibilities, liabilities, or penalties to which the discharger is or may be
subject to under Section 311 of the CWA.
P. Severability
The provisions of this General Permit are severable; and, if any provision
of this General Permit or the application of any provision of this General
Permit to any circumstance is held invalid, the application of such
provision to other circumstances and the remainder of this General Permit
shall not be affected thereby.
Q. Reopener Clause
This General Permit may be modified, revoked and reissued, or
terminated for cause due to promulgation of amended regulations, receipt
of U.S. EPA guidance concerning regulated activities, judicial decision, or
in accordance with 40 Code of Federal Regulations (CFR) 122.62, 122.63,
122.64, and 124.5.
R. Penalties for Violations of Permit Conditions
1. Section 309 of the CWA provides significant penalties for any person
who violates a permit condition implementing Sections 301, 302, 306,
307, 308, 318, or 405 of the CWA or any permit condition or limitation
implementing any such section in a permit issued under Section 402.
Any person who violates any permit condition of this General Permit is
subject to a civil penalty not to exceed $37,50011 per calendar day of
such violation, as well as any other appropriate sanction provided by
Section 309 of the CWA.
11
May be further adjusted in accordance with the Federal Civil Penalties Inflation Adjustment Act.
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2. The Porter-Cologne Water Quality Control Act also provides for civil
and criminal penalties, which in some cases are greater than those
under the CWA.
S. Transfers
This General Permit is not transferable.
T. Continuation of Expired Permit
This General Permit continues in force and effect until a new General
Permit is issued or the SWRCB rescinds this General Permit. Only those
dischargers authorized to discharge under the expiring General Permit are
covered by the continued General Permit.
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V. EFFLUENT STANDARDS
A. Narrative Effluent Limitations
1. Storm water discharges and authorized non-storm water discharges
regulated by this General Permit shall not contain a hazardous
substance equal to or in excess of reportable quantities established in
40 C.F.R. §§ 117.3 and 302.4, unless a separate NPDES Permit has
been issued to regulate those discharges.
2. Dischargers shall minimize or prevent pollutants in storm water
discharges and authorized non-storm water discharges through the
use of controls, structures, and management practices that achieve
BAT for toxic and non-conventional pollutants and BCT for
conventional pollutants.
B. Numeric Effluent Limitations (NELs)
Table 1- Numeric Effluent Limitations, Numeric Action Levels, Test Methods,
Detection Limits, and Reporting Units
Parameter
Test
Method
Discharge
Type
Field test
with
calibrated
portable
instrument
Risk Level 2
Min.
Detection
Limit
Units
pH
Turbidity
EPA
0180.1
and/or field
test with
calibrated
portable
instrument
0.2
pH
units
Risk Level 3
Risk Level 2
1
Risk Level 3
Numeric
Action
Level
lower NAL =
6.5
upper NAL =
8.5
lower NAL =
6.5
upper NAL =
8.5
Numeric
Effluent
Limitation
lower NEL =
6.0
upper NEL =
9.0
250 NTU
N/A
250 NTU
500 NTU
N/A
NTU
1. Numeric Effluent Limitations (NELs):
a. Storm Event, Daily Average pH Limits – For Risk Level 3
dischargers, the pH of storm water and non-storm water discharges
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shall be within the ranges specified in Table 1 during any site phase
where there is a "high risk of pH discharge."12
b. Storm Event Daily Average Turbidity Limit – For Risk Level 3
dischargers, the turbidity of storm water and non-storm water
discharges shall not exceed 500 NTU.
2. If daily average sampling results are outside the range of pH NELs
(i.e., is below the lower NEL for pH or exceeds the upper NEL for pH)
or exceeds the turbidity NEL (as listed in Table 1), the discharger is in
violation of this General Permit and shall electronically file monitoring
results in violation within 5 business days of obtaining the results.
3. Compliance Storm Event:
Discharges of storm water from Risk Level 3 sites shall comply with
applicable NELs (above) unless the storm event causing the
discharges is determined after the fact to be equal to or larger than the
Compliance Storm Event (expressed in inches of rainfall). The
Compliance Storm Event for Risk Level 3 discharges is the 5 year,
24 hour storm (expressed in tenths of an inch of rainfall), as
determined by using these maps:
http://www.wrcc.dri.edu/pcpnfreq/nca5y24.gif
http://www.wrcc.dri.edu/pcpnfreq/sca5y24.gif
Compliance storm event verification shall be done by reporting on-site
rain gauge readings as well as nearby governmental rain gauge
readings.
4. Dischargers shall not be required to comply with NELs if the site
receives run-on from a forest fire or any other natural disaster.
C. Numeric Action Levels (NALs)
1. For Risk Level 2 and 3 dischargers, the lower storm event average
NAL for pH is 6.5 pH units and the upper storm event average NAL for
pH is 8.5 pH units. The discharger shall take actions as described
below if the discharge is outside of this range of pH values.
12
A period of high risk of pH discharge is defined as a project's complete utilities phase, complete vertical
build phase, and any portion of any phase where significant amounts of materials are placed directly on the
land at the site in a manner that could result in significant alterations of the background pH of the
discharges.
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2. For Risk Level 2 and 3 dischargers, the NAL storm event daily average
for turbidity is 250 NTU. The discharger shall take actions as
described below if the discharge is outside of this range of turbidity
values.
3. Whenever the results from a storm event daily average indicate that
the discharge is below the lower NAL for pH, exceeds the upper NAL
for pH, or exceeds the turbidity NAL (as listed in Table 1), the
discharger shall conduct a construction site and run-on evaluation to
determine whether pollutant source(s) associated with the site’s
construction activity may have caused or contributed to the NAL
exceedance and shall immediately implement corrective actions if they
are needed.
4. The site evaluation shall be documented in the SWPPP and
specifically address whether the source(s) of the pollutants causing the
exceedance of the NAL:
a. Are related to the construction activities and whether additional
BMPs are required to (1) meet BAT/BCT requirements; (2) reduce
or prevent pollutants in storm water discharges from causing
exceedances of receiving water objectives; and (3) determine what
corrective action(s) were taken or will be taken and with a
description of the schedule for completion.
AND/OR:
b. Are related to the run-on associated with the construction site
location and whether additional BMPs measures are required to (1)
meet BAT/BCT requirements; (2) reduce or prevent pollutants in
storm water discharges from causing exceedances of receiving
water objectives; and (3) what corrective action(s) were taken or
will be taken with a description of the schedule for completion.
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VI. RECEIVING WATER LIMITATIONS
A. The discharger shall ensure that storm water discharges and authorized
non-storm water discharges to any surface or ground water will not
adversely affect human health or the environment.
B. The discharger shall ensure that storm water discharges and authorized
non-storm water discharges will not contain pollutants in quantities that
threaten to cause pollution or a public nuisance.
C. The discharger shall ensure that storm water discharges and authorized
non-storm water discharges will not contain pollutants that cause or
contribute to an exceedance of any applicable water quality objectives or
water quality standards (collectively, WQS) contained in a Statewide
Water Quality Control Plan, the California Toxics Rule, the National Toxics
Rule, or the applicable Regional Water Board’s Water Quality Control Plan
(Basin Plan).
D. Dischargers located within the watershed of a CWA § 303(d) impaired
water body, for which a TMDL has been approved by the U.S. EPA, shall
comply with the approved TMDL if it identifies “construction activity” or
land disturbance as a source of the pollution.
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VII.
TRAINING QUALIFICATIONS AND CERTIFICATION
REQUIREMENTS
A. General
The discharger shall ensure that all persons responsible for implementing
requirements of this General Permit shall be appropriately trained in
accordance with this Section. Training should be both formal and
informal, occur on an ongoing basis, and should include training offered by
recognized governmental agencies or professional organizations. Those
responsible for preparing and amending SWPPPs shall comply with the
requirements in this Section VII.
The discharger shall provide documentation of all training for persons
responsible for implementing the requirements of this General Permit in
the Annual Reports.
B. SWPPP Certification Requirements
1. Qualified SWPPP Developer: The discharger shall ensure that
SWPPPs are written, amended and certified by a Qualified SWPPP
Developer (QSD). A QSD shall have one of the following registrations
or certifications, and appropriate experience, as required for:
a. A California registered professional civil engineer;
b. A California registered professional geologist or engineering
geologist;
c. A California registered landscape architect;
d. A professional hydrologist registered through the American Institute
of Hydrology;
e. A Certified Professional in Erosion and Sediment Control (CPESC)
TM
registered through Enviro Cert International, Inc.;
f. A Certified Professional in Storm Water Quality (CPSWQ) TM
registered through Enviro Cert International, Inc.; or
g. A professional in erosion and sediment control registered through
the National Institute for Certification in Engineering Technologies
(NICET).
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Effective two years after the adoption date of this General Permit, a
QSD shall have attended a State Water Board-sponsored or approved
QSD training course.
2. The discharger shall list the name and telephone number of the
currently designated Qualified SWPPP Developer(s) in the SWPPP.
3. Qualified SWPPP Practitioner: The discharger shall ensure that all
BMPs required by this General Permit are implemented by a Qualified
SWPPP Practitioner (QSP). A QSP is a person responsible for nonstorm water and storm water visual observations, sampling and
analysis. Effective two years from the date of adoption of this General
Permit, a QSP shall be either a QSD or have one of the following
certifications:
a. A certified erosion, sediment and storm water inspector registered
through Enviro Cert International, Inc.; or
b. A certified inspector of sediment and erosion control registered
through Certified Inspector of Sediment and Erosion Control, Inc.
Effective two years after the adoption date of this General Permit, a
QSP shall have attended a State Water Board-sponsored or approved
QSP training course.
4. The LRP shall list in the SWPPP, the name of any Approved Signatory,
and provide a copy of the written agreement or other mechanism that
provides this authority from the LRP in the SWPPP.
5. The discharger shall include, in the SWPPP, a list of names of all
contractors, subcontractors, and individuals who will be directed by the
Qualified SWPPP Practitioner. This list shall include telephone
numbers and work addresses. Specific areas of responsibility of each
subcontractor and emergency contact numbers shall also be included.
6. The discharger shall ensure that the SWPPP and each amendment will
be signed by the Qualified SWPPP Developer. The discharger shall
include a listing of the date of initial preparation and the date of each
amendment in the SWPPP.
VIII. RISK DETERMINATION
The discharger shall calculate the site's sediment risk and receiving water risk
during periods of soil exposure (i.e. grading and site stabilization) and use the
calculated risks to determine a Risk Level(s) using the methodology in
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Appendix 1. For any site that spans two or more planning watersheds,13 the
discharger shall calculate a separate Risk Level for each planning watershed.
The discharger shall notify the State Water Board of the site’s Risk Level
determination(s) and shall include this determination as a part of submitting
the PRDs. If a discharger ends up with more than one Risk Level
determination, the Regional Water Board may choose to break the project
into separate levels of implementation.
IX. RISK LEVEL 1 REQUIREMENTS
Risk Level 1 Dischargers shall comply with the requirements included in
Attachment C of this General Permit.
X. RISK LEVEL 2 REQUIREMENTS
Attachment D of this General Permit.
XI. RISK LEVEL 3 REQUIREMENTS
Attachment E of this General Permit.
XII.
ACTIVE TREATMENT SYSTEMS (ATS)
Dischargers choosing to implement an ATS on their site shall comply with all of
the requirements in Attachment F of this General Permit.
13
Planning watershed: defined by the Calwater Watershed documents as a watershed that ranges in size
from approximately 3,000 to 10,000 acres http://cain.ice.ucdavis.edu/calwater/calwfaq.html,
http://gis.ca.gov/catalog/BrowseRecord.epl?id=22175 .
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XIII. POST-CONSTRUCTION STANDARDS
A. All dischargers shall comply with the following runoff reduction
requirements unless they are located within an area subject to postconstruction standards of an active Phase I or II municipal separate storm
sewer system (MS4) permit that has an approved Storm Water
Management Plan.
1. This provision shall take effect three years from the adoption date of
this permit, or later at the discretion of the Executive Officer of the
Regional Board.
2. The discharger shall demonstrate compliance with the requirements of
this section by submitting with their NOI a map and worksheets in
accordance with the instructions in Appendix 2. The discharger shall
use non-structural controls unless the discharger demonstrates that
non-structural controls are infeasible or that structural controls will
produce greater reduction in water quality impacts.
3. The discharger shall, through the use of non-structural and structural
measures as described in Appendix 2, replicate the pre-project water
balance (for this permit, defined as the volume of rainfall that ends up
as runoff) for the smallest storms up to the 85th percentile storm event
(or the smallest storm event that generates runoff, whichever is larger).
Dischargers shall inform Regional Water Board staff at least 30 days
prior to the use of any structural control measure used to comply with
this requirement. Volume that cannot be addressed using nonstructural practices shall be captured in structural practices and
approved by the Regional Water Board. When seeking Regional
Board approval for the use of structural practices, dischargers shall
document the infeasibility of using non-structural practices on the
project site, or document that there will be fewer water quality impacts
through the use of structural practices.
4. For sites whose disturbed area exceeds two acres, the discharger shall
preserve the pre-construction drainage density (miles of stream length
per square mile of drainage area) for all drainage areas within the area
serving a first order stream14 or larger stream and ensure that postproject time of runoff concentration is equal or greater than pre-project
time of concentration.
14
A first order stream is defined as a stream with no tributaries.
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B. All dischargers shall implement BMPs to reduce pollutants in storm water
discharges that are reasonably foreseeable after all construction phases
have been completed at the site (Post-construction BMPs).
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XIV. SWPPP REQUIREMENTS
A. The discharger shall ensure that the Storm Water Pollution Prevention
Plans (SWPPPs) for all traditional project sites are developed and
amended or revised by a QSD. The SWPPP shall be designed to address
the following objectives:
1. All pollutants and their sources, including sources of sediment
associated with construction, construction site erosion and all other
activities associated with construction activity are controlled;
2. Where not otherwise required to be under a Regional Water Board
permit, all non-storm water discharges are identified and either
eliminated, controlled, or treated;
3. Site BMPs are effective and result in the reduction or elimination of
pollutants in storm water discharges and authorized non-storm water
discharges from construction activity to the BAT/BCT standard;
4. Calculations and design details as well as BMP controls for site run-on
are complete and correct, and
5. Stabilization BMPs installed to reduce or eliminate pollutants after
construction are completed.
B. To demonstrate compliance with requirements of this General Permit, the
QSD shall include information in the SWPPP that supports the
conclusions, selections, use, and maintenance of BMPs.
C. The discharger shall make the SWPPP available at the construction site
during working hours while construction is occurring and shall be made
available upon request by a State or Municipal inspector. When the
original SWPPP is retained by a crewmember in a construction vehicle
and is not currently at the construction site, current copies of the BMPs
and map/drawing will be left with the field crew and the original SWPPP
shall be made available via a request by radio/telephone.
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XV. REGIONAL WATER BOARD AUTHORITIES
A. In the case where the Regional Water Board does not agree with the
discharger’s self-reported risk level (e.g., they determine themselves to be
a Level 1 Risk when they are actually a Level 2 Risk site), Regional Water
Boards may either direct the discharger to reevaluate the Risk Level(s) for
their site or terminate coverage under this General Permit.
B. Regional Water Boards may terminate coverage under this General
Permit for dischargers who fail to comply with its requirements or where
they determine that an individual NPDES permit is appropriate.
C. Regional Water Boards may require dischargers to submit a Report of
Waste Discharge / NPDES permit application for Regional Water Board
consideration of individual requirements.
D. Regional Water Boards may require additional Monitoring and Reporting
Program Requirements, including sampling and analysis of discharges to
sediment-impaired water bodies.
E. Regional Water Boards may require dischargers to retain records for more
than the three years required by this General Permit.
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XVI. ANNUAL REPORTING REQUIREMENTS
A. All dischargers shall prepare and electronically submit an Annual Report
no later than September 1 of each year.
B. The discharger shall certify each Annual Report in accordance with the
Special Provisions.
C. The discharger shall retain an electronic or paper copy of each Annual
Report for a minimum of three years after the date the annual report is
filed.
D. The discharger shall include storm water monitoring information in the
Annual Report consisting of:
1. a summary and evaluation of all sampling and analysis results,
including copies of laboratory reports;
2. the analytical method(s), method reporting unit(s), and method
detection limit(s) of each analytical parameter (analytical results that
are less than the method detection limit shall be reported as "less than
the method detection limit");
3. a summary of all corrective actions taken during the compliance year;
4. identification of any compliance activities or corrective actions that
were not implemented;
5. a summary of all violations of the General Permit;
6. the names of individual(s) who performed the facility inspections,
sampling, visual observation (inspections), and/or measurements;
7. the date, place, time of facility inspections, sampling, visual
observation (inspections), and/or measurements, including
precipitation (rain gauge); and
8. the visual observation and sample collection exception records and
reports specified in Attachments C, D, and E.
E. The discharger shall provide training information in the Annual Report
consisting of:
1. documentation of all training for individuals responsible for all activities
associated with compliance with this General Permit;
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2. documentation of all training for individuals responsible for BMP
installation, inspection, maintenance, and repair; and
3. documentation of all training for individuals responsible for overseeing,
revising, and amending the SWPPP.
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