STORMWATER POLLUTION PREVENTION PLAN

Transcription

1 STORMWATER POLLUTION PREVENTION PLAN for CALIMESA - AVENUE L STORM DRAIN, STAGE 2 PROJECT NO LUP TYPE 1 Legally Responsible Person (LRP): Warren D. Williams, P.E., General Manager-Chief Engineer Approved Signatory: Robert J. Cullen, P.E., Chief of Design and Construction Division Prepared for: RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT 1995 MARKET STREET RIVERSIDE, CA Project Address: AVENUE L AND CALIFORNIA STREET, CALIMESA, CA SWPPP Prepared by: [Company Name] [Address] [QSD's Name] SWPPP Preparation Date [Date] Estimated Project Dates: Start of Construction Completion of Construction CGP App ID No.

2 Table of Contents Table of Contents... i Qualified SWPPP Developer... 1 Legally Responsible Person... 2 Amendment Log... 3 Section 1 SWPPP Requirements Introduction Permit Registration Documents SWPPP Availability and Implementation SWPPP Amendments Retention of Records Required Non-Compliance Reporting Annual Report Changes to Permit Coverage Notice of Termination References... 9 Section 2 Project Information Project and Site Description Site Description Existing Conditions Existing Drainage Geology and Groundwater Project Description Developed Condition Permits and Governing Documents Stormwater Run-On from Offsite Areas Findings of the Construction Site Sediment and Receiving Water Risk Determination Construction Schedule Potential Construction Activity and Pollutant Sources Identification of Non-Stormwater Discharges Required Site Map Information Calimesa - Avenue L Storm Drain, Stage 2 SWPPP i January 2012

3 Section 3 Best Management Practices Schedule for BMP Implementation Erosion and Sediment Control Erosion Control Sediment Controls Non-Stormwater Controls and Waste and Materials Management Non-Stormwater Controls Materials Management and Waste Management Post Construction Stormwater Management Measures Section 4 BMP Inspection and Maintenance BMP Inspection and Maintenance Section 5 Training Section 6 Responsible Parties and Operators Responsible Parties Contractor List Section 7 Monitoring and Reporting Program (M&RP) Objectives M&RP Implementation Schedule LUP Type 1 Monitoring and Reporting Requirements Inspection Requirements Monitoring For Non-Visible Pollutants Non-Visible Pollutant Sampling Strategy (NVPSS) Identification of Potential Sources of Non-Visible Pollutants Pre-Construction Activities Construction Activities Construction Materials Non-Visible Pollutants to be Monitored Implementation of NVPSS Monitoring Locations Site Sampling Locations for Non-Visible Pollutants Control Samples Sample Collection Strategy and Schedule Weather Tracking Calimesa - Avenue L Storm Drain, Stage 2 SWPPP ii January 2012

4 Pre-Event Mobilization (Action Levels Pre-Alert and Alert) Sampling Equipment Sample Bottles Sample Collection and Handling Post-Storm Event Procedures Analytical Data Evaluation Sampling and Analysis Records Modification to This Procedure Training For Sampling Personnel Section 8 References Appendix A: Calculations and Risk Determination Appendix B: Site Maps Appendix C: Permit Registration Documents Appendix D: SWPPP Amendment Certifications Appendix E: Submitted Changes to PRDs Appendix F: Construction Schedule Appendix G: Construction Activities, Materials Used, and Associated Pollutants Appendix H: CASQA Stormwater BMP Handbook Portal: Construction Fact Sheets Appendix I: BMP Inspection Form Appendix J: Rain Event Action Plan (REAP) Appendix K: Training Reporting Form Appendix L: Responsible Parties Appendix M: Contractors and Subcontractors Appendix N: Construction General Permit Appendix O: Weather Reports Calimesa - Avenue L Storm Drain, Stage 2 SWPPP iii January 2012

5 Qualified SWPPP Developer Approval and Certification of the Stormwater Pollution Prevention Plan Project Name: CALIMESA - AVENUE L STORM DRAIN, STAGE 2 "I certify that this Stormwater Pollution Prevention Plan and Attachments meet the requirements of the California Construction General Permit (SWRCB Orders No DWQ as amended by Order DWQ). I certify that I am a Qualified SWPPP Developer in good standing as of the date signed below." QSD Signature Date QSD Name QSD Certificate Number Title and Affiliation Telephone Number Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 1 January 2012

6 Legally Responsible Person Approval and Certification of the Stormwater Pollution Prevention Plan Project Name: CALIMESA - AVENUE L STORM DRAIN, STAGE 2 "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." Warren D. Williams, P.E. Legally Responsible Person Signature of Authorized Representative of Legally Responsible Person or Approved Signatory Date Robert J. Cullen, P.E Name of Authorized Representative of Legally Telephone Number Responsible Person or Approved Signatory Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 2 January 2012

7 Amendment Log Project Name: CALIMESA - AVENUE L STORM DRAIN, STAGE 2 Amendment No. Date Brief Description of Amendment, include section and page number Prepared and Approved By Name: QSD# Name: QSD# Name: QSD# Name: QSD# Name: QSD# Name: QSD# Name: QSD# Name: QSD# Name: QSD# Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 3 January 2012

8 Section 1 SWPPP Requirements 1.1 INTRODUCTION This SWPPP has been prepared for the Calimesa - Avenue L Storm Drain, Stage 2 project, located in the city of Calimesa, Riverside County, California, and generally consists of the installation of reinforced concrete pipe storm drain beneath existing paved streets. The project begins approximately 200 feet east of the Avenue L and 4 th Street intersection, and traverses approximately 7,100 feet northeasterly ending on Douglas Street. The project's location is shown on the Site Maps in Appendix B. The terms "discharger", "legally responsible party", "legally responsible person", and "LRP" are used interchangeably in this document and universally refer to the Riverside County Flood Control and Water Conservation District. This Stormwater Pollution Prevention Plan (SWPPP) is designed to comply with California's General Permit for Stormwater Discharges Associated with Construction and Land Disturbance Activities (General Permit or CGP) Order No DWQ as amended by Order No DWQ (NPDES No. CAS000002) issued by the State Water Resources Control Board (State Water Board). This SWPPP has been prepared following the SWPPP Template provided on the California Stormwater Quality Association Stormwater Best Management Practice Handbook Portal: Construction (CASQA, 2010). In accordance with the General Permit, Section XIV, this SWPPP is designed to address the following: Pollutants and their sources, including sources of sediment associated with construction, construction site erosion and other activities associated with LUP activity are controlled; Where not otherwise required to be under a Regional Water Quality Control Board (Regional Water Board) permit, all non-stormwater discharges are identified and eliminated, controlled, or treated; and Site BMPs are effective and result in the reduction or elimination of pollutants in stormwater discharges and authorized non-stormwater discharges from construction activity to the Best Available Technology/Best Control Technology (BAT/BCT) standard. The Calimesa - Avenue L Storm Drain, Stage 2 project is a Linear Underground/Overhead Project (LUP) and, therefore, must comply with provisions set forth in Attachment A of the CGP. This SWPPP must be evaluated and revised on an ongoing basis by a QSP in order to document the changes and progression of construction activity throughout the life of the project. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 4 January 2012

9 1.2 PERMIT REGISTRATION DOCUMENTS Required Permit Registration Documents (PRDs) shall be submitted to the State Water Board via the Stormwater Multi Application and Report Tracking System (SMARTS) by the Legally Responsible Person (LRP), or authorized personnel (i.e., Approved Signatory) under the direction of the LRP. The project-specific PRDs include (per CGP Attachment A, Section B): 1. Notice of Intent (NOI) Prior to construction activities, the LRP of a proposed linear underground/overhead project shall utilize the processes and methods provided in Attachment A.2, Permit Registration Documents (PRDs) General Instructions for Linear Underground/Overhead Projects to comply with the Construction General Permit. 2. Risk Assessment (Construction Site Sediment and Receiving Water Risk Determination) 3. Site Map LRPs submitting PRDs shall include at least 3 maps. The first map will be a zoomed ft vicinity map that shows the starting point of the project. The second will be a zoomed map of ft showing the ending location of the project. The third will be a larger view vicinity map, 1000 ft to 2000 ft, displaying the entire project location depending on the project size, and indicating the LUP type (1, 2 or 3) areas within the total project footprint. 4. Drawings LRPs submitting PRDs shall include a construction drawing(s) or other appropriate drawing(s) or map(s) that shows the locations of storm drain inlets and waterbodies that may receive discharges from the construction activities and that shows the locations of BMPs to be installed for all those BMPs that can be illustrated on the revisable drawing(s) or map(s). If storm drain inlets, waterbodies, and/or BMPs cannot be adequately shown on the drawing(s) or map(s) they should be described in detail within the SWPPP. 5. Signed Certification Statement (LRP Certification is provided electronically with SMARTS PRD submittal); 6. SWPPP LUP dischargers shall comply with the SWPPP Preparation, Implementation, and Oversight requirements in Section K of CGP Attachment A. 7. Contact information LUP dischargers shall include contact information for all contractors (or subcontractors) responsible for each area of an LUP project. This should include the names, telephone numbers, and addresses of contact personnel. Specific areas of responsibility of each contact, and emergency contact numbers should also be included. A copy of the submitted PRDs shall also be kept in Appendix C along with the CGP App ID confirmation. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 5 January 2012

10 1.3 SWPPP AVAILABILITY AND IMPLEMENTATION The discharger shall make the SWPPP available at the construction site during working hours (see Section 7.5 of CSMP for 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. (CGP Section XIV.C) The SWPPP shall be implemented concurrently with the start of ground disturbing activities. 1.4 SWPPP AMENDMENTS The SWPPP should be revised when: If there is a General Permit violation; When there is a reduction or increase in total disturbed acreage (General Permit Section II Part C); or BMPs do not meet the objectives of reducing or eliminating pollutants in stormwater discharges. Additionally, the SWPPP shall be amended when: There is a change in construction or operations which may affect the discharge of pollutants to surface waters, groundwater(s), or a municipal separate storm sewer system (MS4); When there is a change in the project duration that changes the project's risk level; or When deemed necessary by the QSD. The QSD has determined that the changes listed in Table 1.1 can be field determined by the QSP. All other changes shall be made by the QSD as formal amendments to the SWPPP. The following items shall be included in each amendment: Who requested the amendment; The location of proposed change; The reason for change; The original BMP proposed, if any; and The new BMP proposed. The amendment shall be logged at the front of the SWPPP and certification kept in Appendix D. The SWPPP text shall be revised, replaced, and/or hand annotated as necessary to properly convey the amendment. SWPPP amendments must be made by a QSD. The following changes have been designated by the QSD as "to be field determined" and constitute minor changes that the QSP may implement based on field conditions. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 6 January 2012

11 Table 1.1 List of Changes to be Field Determined Candidate changes for field location or determination by QSP (1) Check changes that can be field located or field determined by QSP Increase quantity of an Erosion or Sediment Control Measure Relocate/Add stockpiles or stored materials Relocate or add toilets Relocate vehicle storage and/or fueling locations Relocate areas for waste storage Relocate water storage and/or water transfer location Changes to access points (entrance/exits) Change type of Erosion or Sediment Control Measure Changes to location of erosion or sediment control Minor changes to schedule or phases Changes in construction materials (1) Any field changes not identified for field location or field determination by QSP must be approved by QSD 1.5 RETENTION OF RECORDS Paper or electronic records of documents required by this SWPPP shall be retained for a minimum of three years from the date generated or date submitted, whichever is later. These records shall be available at the Site until construction is complete. Records assisting in the determination of compliance with the General Permit shall be made available within a reasonable time to the Regional Water Board, State Water Board or U.S. Environmental Protection Agency (EPA) upon request. Requests by the Regional Water Board for retention of records for a period longer than three years shall be adhered to. 1.6 REQUIRED NON-COMPLIANCE REPORTING If a discharge violation occurs the QSP shall immediately notify the LRP and the LRP shall file a violation report electronically to the Regional Water Board within 30 days of identification of non-compliance using SMARTS. Corrective measures will be implemented immediately following the discharge or written notice of non-compliance from the Regional Water Board. Discharges and corrective actions will be documented on the NAL/NEL Exceedance Site Evaluation Report Form in CSMP Attachment 3 "Example Forms." The report to the LRP and to the Regional Water Board will contain the following items: The date, time, location, nature of operation and type of unauthorized discharge. The cause or nature of the notice or order. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 7 January 2012

12 The control measures (BMPs) deployed before the discharge event, or prior to receiving notice or order. The date of deployment and type of control measures (BMPs) deployed after the discharge event, or after receiving the notice or order, including additional measures installed or planned to reduce or prevent re-occurrence. 1.7 ANNUAL REPORT The General Permit requires that all Permittees prepare, certify, and electronically submit an Annual Report no later than September 1 st of each year. Reporting requirements include (but are not limited to) providing a summary of: 1) Sampling and analysis results, including laboratory reports, analytical methods and reporting limits, and chain of custody forms (if any); 2) Corrective actions and compliance activities, including those not implemented; 3) Violations of the General Permit; 4) Date, time, place, and name(s) of the inspector(s) for all sampling, inspections, and field measurement activities; 5) Visual observation and sample collection exception records; and 6) Training documentation of all personnel responsible for General Permit compliance activities. 1.8 CHANGES TO PERMIT COVERAGE The General Permit allows for the reduction or increase of the total acreage covered under the General Permit when: a portion of the project is complete and/or conditions for termination of coverage have been met; when ownership of a portion of the project is purchased by a different entity; or when new acreage is added to the project. Modified PRDs shall be filed electronically within 30 days of a reduction or increase in total disturbed area if a change in permit covered acreage is to be sought. The SWPPP shall be modified appropriately, shall be logged at the front of the SWPPP and certification of SWPPP amendments are to be kept in Appendix D. Updated PRDs submitted electronically via SMARTS can be found in Appendix E. 1.9 NOTICE OF TERMINATION To terminate coverage under the General Permit, a Notice of Termination (NOT) must be submitted electronically via SMARTS. A "final site map" and photos are required to be submitted with the NOT. Filing a NOT certifies that all General Permit requirements have been met. The NOT is submitted when the construction project is complete and within 90 days of meeting all General Permit requirements for termination and final stabilization, including: The site will not pose any additional sediment discharge risk than it did prior to construction activity; All construction related equipment, materials and any temporary BMPs no longer needed are removed from the site; and Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 8 January 2012

13 Post-construction stormwater management measures are installed and a long-term maintenance plan that is designed for a minimum of five years has been developed. The NOT must demonstrate through photos, Revised Universal Soil Loss Equation (RUSLE) results, or results of testing and analysis that the project meets all of the requirements of Section II.D.1 of the General Permit by the following method: 70% final cover method (no computational proof required) REFERENCES The following documents are made a part of this SWPPP by reference: Project plans and specifications prepared by the Riverside County Flood Control and Water Conservation District; State Water Resources Control Board's (SWRCB) National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Discharges Associated with Construction and Land Disturbance Activities Order No DWQ, NPDES No. CAS000002; and California Stormwater Quality Association (CASQA) Construction Site Best Management Practices Manual, dated January Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 9 January 2012

14 Section 2 Project Information 2.1 PROJECT AND SITE DESCRIPTION This Stormwater Pollution Prevention Plan (SWPPP) has been created for the Calimesa - Avenue L Storm Drain, Stage 2 project. Refer to the vicinity map located in Appendix B for the site location Site Description The project is located entirely in the city of Calimesa, Riverside County. The project is located in Section 13 of Township 2 South, Range 1 West and Section 18 of Township 2 South, Range 2 West of the U.S. Geological Survey 7.5-minute topographic quadrangle maps for El Casco and Yucaipa ( North / West). The project is a linear underground/overhead project (LUP) and begins approximately 200 feet east of the Avenue "L" and 4 th Street intersection, and traverses approximately 7,100 feet northeasterly, ending on Douglas Street. Construction of short laterals (less than 100') and catch basins will also occur on the North-South streets intersecting Avenue L namely, Second Street, California Street and Bryant Street. An approximately 150' lateral will be installed North from Avenue L on Third Street. Project exhibits are located in Appendix B of this SWPPP. Based on the proposed construction activity and the criteria in Attachment A.2 of the CGP ("Calculating Land Disturbance Areas of LUPs"), the initial estimated disturbance area for the Calimesa - Avenue L Storm Drain, Stage 2 project is 6.9 acres (4.6 acres of pavement overlay, 1.3 acres of full depth in-trench pavement replacement, and a 1 acre storage or staging area). Any changes to the initial estimate must be reported electronically (via SMARTS) and recorded in Appendix E of this SWPPP Existing Conditions Approximately 100% of the pre-project disturbance area is impervious and post-project imperviousness will not increase Existing Drainage Existing drainage in the project area is entirely overland. The tributary area for the project is comprised substantially of residential parcels draining to the public streets, with only two known commercial parcels (also draining to the public streets). The local drainage pattern flows from North to South and East to West and is largely contained in street right of way for the 10 year 24- hour event. Near the beginning of this LUP project there exists several catch basins which tie into the Calimesa - Avenue L Storm Drain, Stage 1 (District Drawing No ), which runs West in Avenue L to Calimesa Boulevard, where it travels North and West, ending in a sump located near Interstate Geology and Groundwater Per the project geotechnical report, the majority of the proposed storm drain alignment is underlain by a two-layer sequence of detrital alluvial materials: the upper layer consisting of loose to medium dense very silty sand and stiff to hard non-plastic sandy silt; the lower layer Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 10 January 2012

15 consisting of massive to indistinctly stratified medium dense to dense silty sand, clayey sand, gravelly sand, and uncommon sandy gravel. No groundwater was encountered in any of the exploratory borings, and is speculated by the project geotechnical report to be very deep. Nearby groundwater monitoring wells have found the average static groundwater surface elevation to vary from 150 to 170 feet below ground surface Project Description The project entails the construction of below-ground storm drain facilities as well as related above- and below-ground drainage structures, such as access manholes and catch basins. Street paving, both full depth structural replacement in-trench and pavement overlay outside of trench, will also occur. The project includes the following type of facilities: Storm drain, constructed below ground Surface and below ground drainage structures Street paving Developed Condition Table 2.1 Construction Site Estimates Construction site area 6.9 acres Percent impervious before construction 100 % Runoff coefficient before construction 0.90 Percent impervious after construction 100 % Runoff coefficient after construction PERMITS AND GOVERNING DOCUMENTS In addition to the General Permit, the following documents have been taken into account while preparing this SWPPP Regional Water Board requirements Basin Plan requirements Contract Documents Air Quality Regulations and Permits Federal Endangered Species Act National Historic Preservation Act/Requirements of the State Historic Preservation Office Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 11 January 2012

16 State of California Endangered Species Act Clean Water Act Section 401 Water Quality Certifications and 404 Permits CA Department of Fish and Game 1600 Streambed Alteration Agreement 2.3 STORMWATER RUN-ON FROM OFFSITE AREAS Runoff and run-on controls are not required for Type 1 LUP. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 12 January 2012

17 2.4 FINDINGS OF THE CONSTRUCTION SITE SEDIMENT AND RECEIVING WATER RISK DETERMINATION A construction site risk assessment has been performed for the project. The result is that this project is classified as a Type 1 LUP, which has the following requirements: Less than 30% of soil disturbances occur on unpaved surfaces (including staging areas). At the end of the work day, the construction site must be returned to predevelopment or equivalent condition. For this project, all disturbed soil piles from trench excavation must be covered and secured with sandbags or other means around the perimeter. Any pipe lain within an open trench will be plugged at the downstream end to eliminate runoff leaving the site via the already installed storm drain line. The risk level was determined by a site specific analysis. The risk level is based on project duration, location, proximity to impaired receiving waters and soil conditions. A copy of the Risk Level determination submitted on SMARTS with the PRDs is included in Appendix C. Table 2.2 and Table 2.3 summarize the sediment and receiving water risk factors and document the sources of information used to derive the factors. Table 2.2 RUSLE Factor Value Summary of Sediment Risk Method for establishing value R EPA website calculator (see Appendix C) K 0.34 Project geotechnical report LS 1.12 Table from Renard el. Al., 1997 (see Appendix C) Overall Sediment Risk Low Sediment Risk < 15 tons/ acre Medium Sediment Risk >= 15 and < 75 tons/acre High Sediment Risk >= 75 tons/acre Low Medium High Runoff from the project site discharges into the Calimesa - Avenue L Storm Drain, Stage 1, which eventually reaches San Timoteo Creek, then confluences with the Santa Ana River, Reach 5. Table 2.3 Receiving Water Name Summary of Receiving Water Risk 303(d) Listed for Sediment Related Pollutant (1) TMDL for Sediment Related Pollutant (1) Beneficial Uses of COLD, SPAWN, and MIGRATORY (1) Santa Ana River Reach 5 Yes No Yes No Yes No Overall Receiving Water Risk Low High (1) If yes is selected for any option the Receiving Water Risk is High Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 13 January 2012

18 2.5 CONSTRUCTION SCHEDULE The site sediment risk was determined based on construction taking place between April 18, 2012 and November 14, Modification or extension of the schedule (start and end dates) may affect risk determination and permit requirements. The LRP shall contact the QSD if the schedule changes during construction to address potential impact to the SWPPP. The estimated schedule for planned work can be found in Appendix F. 2.6 POTENTIAL CONSTRUCTION ACTIVITY AND POLLUTANT SOURCES Appendix G includes a list of construction activities and associated materials that are anticipated to be used onsite. These activities and associated materials will or could potentially contribute pollutants, other than sediment, to stormwater runoff. The anticipated activities and associated pollutants were used in Section 3 to select the Best Management Practices for the project. Location of anticipated pollutants and associated BMPs are show on the Site Map in Appendix B. 2.7 IDENTIFICATION OF NON-STORMWATER DISCHARGES Non-stormwater discharges consist of discharges which do not originate from precipitation events. The General Permit provides allowances for specified non-stormwater discharges that do not cause erosion or carry other pollutants. Non-stormwater discharges into storm drainage systems or waterways, which are not authorized under the General Permit and listed in the SWPPP, or authorized under a separate NPDES permit, are prohibited. Non-stormwater discharges that are authorized from this project site include the following: None These authorized non-stormwater discharges will be managed with the stormwater and nonstormwater BMPs described in Section 3 of this SWPPP and will be minimized by the QSP. Activities at this site that may result in unauthorized non-stormwater discharges include: Steps will be taken, including the implementation of appropriate BMPs, to ensure that unauthorized discharges are eliminated, controlled, disposed, or treated onsite. Discharges of construction materials and wastes, such as fuel or paint, resulting from dumping, spills, or direct contact with rainwater or stormwater runoff, are also prohibited. The following additional information is provided regarding non-stormwater discharges: Dewatering (Discharge of Ponded/Retained Stormwater to Surface Waters It is the responsibility of the Contractor to contact the appropriate California Regional Water Quality Control Board (Regional Board) to see if a permit is required for this activity. If there is a situation where there is ponded water due to rainfall collecting in a temporary sump condition caused by construction, the water may need to be removed. If approved by the Site LRP, the water may be pumped out of the sump and discharged at the site as long as the water is not pumped directly into the storm drain. The water must Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 14 January 2012

19 be pumped into an open area, with vegetation, with prior permission of the property owner, so that it can naturally percolate into the ground and not discharge into the storm drain system. In all other cases the water must be pumped to a truck and shipped offsite for proper disposal. 2.8 REQUIRED SITE MAP INFORMATION The Site Maps and Drawings are included in Appendix B of this SWPPP. Site Maps In accordance with the CGP, three site maps must be included with the PRDs. The first will be a ft vicinity map that shows the starting point of the project. The second will be a zoomed map of ft showing the ending location of the project. The third will be a larger view vicinity map, 1000 ft to 2000 ft, displaying the entire project location depending on the project size, and indicating the LUP type (1, 2 or 3) areas within the total project footprint. Drawings Construction drawing(s) or other appropriate drawing(s) or map(s) that show: the locations of the storm drain inlets and waterbodies that may receive discharges from the construction activities; and the locations of BMPs to be installed for all those BMPs that can be illustrated on revisable drawing(s) or map(s). As conditions change it may be necessary to amend the site maps. Table 2.4 identifies sheet numbers where required elements are illustrated. Table 2.4 Required Map Information Included on Map/Plan Sheet No. (1) 1 The project's surrounding area (vicinity) 1 Site layout 1-17 Construction site boundaries 1-17 Drainage areas 1-17 Discharge locations 1-17 Sampling locations Required Element 1-17 Areas of soil disturbance (temporary or permanent) 1-17 Active areas of soil disturbance (cut or fill) 1-17 Locations of run-off BMPs 1-17 Locations of erosion control BMPs 1-17 Locations of sediment control BMPs N/A N/A ATS location (if applicable) Locations of sensitive habitats, watercourses, or other features which are not to be disturbed Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 15 January 2012

20 Table 2.4 Required Map Information Included on Map/Plan Sheet No. (1) N/A Locations of all post construction BMPs 1-17 Waste storage areas 1-17 Vehicle storage areas 1-17 Material storage areas 1-17 Entrance and Exits 1-17 Fueling Locations 1-17 Background Sampling Location Required Element Notes: (1) Indicate maps or drawings that information is included on (e.g., Vicinity Map, Site Map, Drainage Plans, Grading Plans, Progress Maps, etc.). Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 16 January 2012

21 Section 3 Best Management Practices 3.1 SCHEDULE FOR BMP IMPLEMENTATION Table 3.1 BMP Implementation Schedule BMP Implementation Duration EC-1, Scheduling Prior to Construction Entirety of Project Erosion Control SE-1, Silt Fence Prior to Construction Entirety of Project Sediment Control SE-5, Fiber Rolls, Street Sweeping and Vacuuming Around Staging Area if area is not paved When sediment is tracked onto roadway Entirety of Project Entirety of Project SE-8, Sandbag Barrier Start of Construction Entirety of Project SE-10, Storm Drain Inlet Protection Start of Construction Entirety of Project Tracking Control TC-1, Stabilized Construction Entrance/Exit, Street Sweeping and Vacuuming Prior to Construction When sediment is tracked onto roadway Entirety of Project Entirety of Project Wind Erosion WE-1, Wind Erosion Control As necessary to disturbed areas and stockpiles Entirety of Project 3.2 EROSION AND SEDIMENT CONTROL Erosion and sediment controls are required by the General Permit to provide effective reduction or elimination of sediment related pollutants in stormwater discharges and authorized nonstormwater discharges from the Site. Applicable BMPs are identified in this section for erosion control, sediment control, tracking control, and wind erosion control Erosion Control Erosion control, also referred to as soil stabilization, consists of source control measures that are designed to prevent soil particles from detaching and becoming transported in stormwater runoff. Erosion control BMPs protect the soil surface by covering and/or binding soil particles. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 17 January 2012

22 This construction project will implement the following practices to provide effective temporary and final erosion control during construction: 1. Preserve existing vegetation where required and when feasible. 2. The area of soil disturbing operations shall be controlled such that the Contractor is able to implement erosion control BMPs quickly and effectively. 3. Stabilize non-active areas within 14 days of cessation of construction activities or sooner if stipulated by local requirements. 4. Control erosion in concentrated flow paths by applying erosion control blankets, check dams, erosion control seeding or alternate methods. 5. Prior to the completion of construction, apply permanent erosion control to remaining disturbed soil areas. Sufficient erosion control materials shall be maintained onsite to allow implementation in conformance with this SWPPP. The following temporary erosion control BMP selection table indicates the BMPs that shall be implemented to control erosion on the construction site. Fact Sheets for temporary erosion control BMPs are provided in Appendix H. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 18 January 2012

23 Table 3.2 Temporary Erosion Control BMPs CASQA Fact Sheet BMP Name Meets a Minimum Requirement (1) BMP Used YES NO If not used, state reason EC-1 Scheduling Preservation of Existing There is no vegetation to be preserved; project is located in street EC-2 Vegetation right-of-way. EC-3 Hydraulic Mulch (2) No slopes are disturbed. EC-4 Hydroseed (2) No slopes are disturbed. EC-5 Soil Binders (2) Project is not expected to have inactive areas. EC-6 Straw Mulch (2) No areas require temporary protection EC-7 Geotextiles and Mats (2) No slopes are disturbed. EC-8 Wood Mulching (2) No areas require temporary protection. EC-9 Earth Dike and Drainage Swales (3) Will use sandbag barriers instead EC-10 Velocity Dissipation Devices No outlets near project. EC-11 Slope Drains No slopes are disturbed. EC-12 Stream Bank Stabilization Project not near a stream bank. EC-14 Compost Blankets (2) No slopes are disturbed. EC-15 Soil Preparation-Roughening No slopes are disturbed. EC-16 Non-Vegetated Stabilization (2) No areas need temporary stabilization. WE-1 Wind Erosion Control Alternate BMPs Used: If used, state reason: (1) (2) (3) Applicability to a specific project shall be determined by the QSD. The QSD shall ensure implementation of one of the minimum measures listed or a combination thereof to achieve and maintain the Risk Level requirements. Run-on from offsite shall be directed away from all disturbed areas, diversion of offsite flows may require design/analysis by a licensed civil engineer and/or additional environmental permitting Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 19 January 2012

24 These temporary erosion control BMPs shall be implemented in conformance with the following guidelines and as outlined in the BMP Factsheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets. Scheduling EC-1 Scheduling - The project schedule will show how BMP implementation relates to soil disturbing and re-stabilization practices. Non-active areas will be stabilized within 14 days of the cessation of any soil disturbing activities or one day prior to the onset of precipitation, whichever occurs first. The weather forecast will be monitored for rainfall. When rainfall is predicted, the schedule shall be adjusted to allow for the implementation of soil stabilization and sediment controls on any disturbed areas prior to the onset of rain. Wind Erosion Control WE 1 Wind Erosion Control Water will be applied to disturbed areas and stockpiles as necessary to prevent or alleviate erosion by the forces of wind Sediment Controls Sediment controls are temporary or permanent structural measures that are intended to complement the selected erosion control measures and reduce sediment discharges from active construction areas. Sediment controls are designed to intercept and settle out soil particles that have been detached and transported by the force of water. The following sediment control BMP selection table indicates the BMPs that shall be implemented to control sediment on the construction site. Fact Sheets for temporary sediment control BMPs are provided in Appendix H. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 20 January 2012

25 Table 3.3 Temporary Sediment Control BMPs CASQA Fact Sheet BMP Name Meets a Minimum Requirement (1) SE-1 Silt Fence (2) (3) YES BMP used NO If not used, state reason SE-2 Sediment Basin Not expecting sediment-laden water SE-3 Sediment Trap Not expecting sediment-laden water SE-4 Check Dams Steep slopes are not an issue in this project SE-5 Fiber Rolls (2)(3) SE-6 Gravel Bag Berm (3) Will use SE-8 Sandbag Barrier Street Sweeping SE-8 Sandbag Barrier SE-9 Straw Bale Barrier Will use SE-1, SE-5, or SE-8 SE-10 Storm Drain Inlet Protection RL2&3 SE-11 ATS N/A SE-12 Temporary Silt Dike Will use SE-1, SE-5, or SE-8 SE-13 Compost Sock and Berm (3) Used SE-1 and SE-5 SE-14 Biofilter Bags (3) Used SE-10 TC-1 Stabilized Construction Entrance and Exit TC-2 Stabilized Construction Roadway Project is not a roadway construction TC-3 Entrance Outlet Tire Wash Used TC-1 Alternate BMPs Used: If used, state reason: (1) (2) (3) Applicability to a specific project shall be determined by the QSD. The QSD shall ensure implementation of one of the minimum measures listed or a combination thereof to achieve and maintain the Risk Level Risk Level 2 &3 shall provide linear sediment control along toe of slope, face of slope, and at the grade breaks of exposed slope. requirements. Calimesa Avenue L Storm Drain, Stage 2 SWPPP 21 January 2012

26 These temporary sediment control BMPs shall be implemented in conformance with the following guidelines and in accordance with the BMP Fact Sheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets. Silt Fence SE-1 Silt Fence - Linear sediment controls (silt fencing, fiber rolls, etc.) will be used as a perimeter control to contain sediment within the project area. It is not necessary to deploy perimeter controls at locations where sediment is unable to leave the project site (such as areas that slope inward). Fiber Rolls SE-5 Fiber Rolls - Linear sediment controls (silt fencing, fiber rolls, etc.) will be used as a perimeter control to contain sediment within the project area. It is not necessary to deploy perimeter controls at locations where sediment is unable to leave the project site (such as areas that slope inward). Street Sweeping Street Sweeping and Vacuuming - The Contractor shall inspect all immediate access roads daily. The Contractor shall remove any sediment or other construction activity related material that is deposited on the roads by vacuuming or sweeping on a daily basis (when necessary) and prior to any rain event. Sandbag Barrier SE-8 Sandbag Barrier The sandbag barrier will be used to divert run-on around active construction areas. Storm Drain Inlet Protection SE-10 Storm Drain Inlet Protection - Storm drain inlets down gradient of disturbed soil areas will be protected with Type 3, 4 or 5 inlet protection. Stabilized Construction Entrance and Exit TC-1 Stabilized Construction Entrance/Exit - A stabilized construction entrance/exit will be constructed. Additional entrances/exits will be constructed as needed. Construction activity traffic to and from the Project will be limited to these stabilized construction entrances/exits. 3.3 NON-STORMWATER CONTROLS AND WASTE AND MATERIALS MANAGEMENT Non-Stormwater Controls Non-stormwater discharges into storm drainage systems or waterways, which are not authorized under the General Permit, are prohibited. Non-stormwater discharges for which a separate Calimesa Avenue L Storm Drain, Stage 2 SWPPP 22 January 2012

27 NPDES permit is required by the local Regional Water Board are prohibited unless coverage under the separate NPDES permit has been obtained for the discharge. The selection of nonstormwater BMPs is based on the list of construction activities with a potential for nonstormwater discharges identified in Section 2.7 of this SWPPP. The following non-stormwater control BMP selection table indicates the BMPs that shall be implemented to control sediment on the construction site. Fact Sheets for temporary nonstormwater control BMPs are provided in Appendix H. Calimesa Avenue L Storm Drain, Stage 2 SWPPP 23 January 2012

28 Table 3.4 Temporary Non-Stormwater BMPs CASQA Fact Sheet BMP Name Meets a Minimum Requirement (1) BMP used YES NO If not used, state reason NS-1 Water Conservation Practices NS-2 Dewatering Operation Not anticipating any dewatering Paving and Grinding Operation NS-4 Temporary Stream Crossing No stream crossing encounter NS-5 Clear Water Diversion No water diversion expected NS-6 NS-7 Illicit Connection- Illegal Discharge Connection Potable Water Irrigation Discharge Detection NS-8 Vehicle and Equipment Cleaning NS-9 Vehicle and Equipment Fueling NS-10 Vehicle and Equipment Maintenance Not anticipating irrigation discharge NS-11 Pile Driving Operation No pile driving operations. NS-12 Concrete Curing NS-13 Concrete Finishing NS-14 Material and Equipment Use Over Water Project location is not over water NS-15 Demolition Removal Adjacent to Water No demolition removal adjacent to water NS-16 Temporary Batch Plants No batch plant expected Alternate BMPs Used: If used, state reason: (1) Applicability to a specific project shall be determined by the QSD Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 24 January 2012

29 Non-stormwater BMPs shall be implemented in conformance with the following guidelines and in accordance with the BMP Fact Sheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets. Water Conservation Practices NS-1 Water Conservation Practices - Water equipment will be kept in good working condition. Leaks will be repaired immediately. Vehicles and equipment will not be washed on site. Water will not be used to clean construction areas. Paving and Grinding Operation Paving and Grinding Operations - Plastic material will be placed under paving equipment when not in use to catch drips or leaks. Paving equipment will be parked overnight at the staging area with plastic material placed underneath. Asphalt coated equipment will be cleaned off-site when possible. Residue from grinding or removal operations will be picked up by mechanical or manual means and disposed of properly. Inlets adjacent to paving operations will be protected. Following paving operations, the area will be swept and the inlets will be inspected for paving materials. If placing thermoplastic striping, the Contractor will fill the pre-heater carefully to avoid spillage and leave 6 inches of space at the top to allow for movement. Thermoplastic or bituminous material will not be transferred, pre-heated or loaded near drain inlets or water courses. Truck beds will be cleaned daily of loose debris and melted thermoplastic. Illicit Connection- Illegal Discharge Connection NS-6 Illicit Connection/Illegal Discharge Detection and Reporting - The site will be inspected before the Project commences and regularly during the Project for illicit connections or illegal dumping or discharge. If any are found, they will be reported to the Engineering Project Manager and Project Manager at the time of discovery. Vehicle and Equipment Cleaning NS-8 Vehicle and Equipment Cleaning - Vehicles and equipment will be cleaned off-site. Rinse water, wash waters or wash materials will not be disposed of on any impervious or pervious site surfaces, nor will they be disposed of into the storm drain system. Vehicle and Equipment Fueling NS-9 Vehicle and Equipment Fueling - Onsite vehicle and equipment fueling should only be used where it is impractical to send vehicles and equipment offsite for fueling. A dedicated fueling area will be designated at the project site. The dedicated fueling area will be located on a level-grade area located at least 50 feet away from downstream drainage facilities and watercourses. The dedicated fueling area will be protected with berms and/or dikes to prevent run-on and run-off and to contain spills. Absorbent spill clean-up materials and spill kits will be available at the dedicated fueling area. Tanks will not be "topped off". Oil, grease, and fuel will be prevented from leaking to the Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 25 January 2012

30 ground, storm drains or surface waters. Fluid and oil leaks will be repaired immediately. Leaked material shall be disposed of properly. Vehicle and Equipment Maintenance NS-10 Vehicle and Equipment Maintenance - Onsite vehicle and equipment maintenance should only be used where it is impractical to send vehicles and equipment offsite for maintenance. A dedicated maintenance area will be designated at the project site. The dedicated maintenance area will be located on a level-grade area located at least 50 feet away from downstream drainage facilities and watercourses. The dedicated maintenance area will be protected with berms and/or dikes to prevent run-on and run-off and to contain spills. Only minor maintenance, such as adding oil, fluids or lubricants will occur at the project site. Drip pans or plastic sheeting will be used when maintenance work is performed. Absorbent spill cleanup materials and spill kits will be available at the dedicated maintenance area. Oil, grease, and fuel will be prevented from leaking to the ground, storm drains or surface waters. Fluid and oil leaks will be repaired immediately. Leaked material shall be disposed of properly. Concrete Curing NS-12 Concrete Curing - If curing compounds are used, overspray will be avoided. The drift of the curing compound will be minimized by applying the compound close to the concrete surface. An amount of compound that covers the surface but does not allow any run-off of the compound will be applied. Cure water will be directed away from inlets and watercourses to collection areas for proper removal. Concrete Finishing NS-13 Concrete Finishing Drift of dust and blast material will be minimized by keeping blasting nozzle close to the surface. Inlets will be protected during sandblasting operations, and water from blasting operations will be directed away from inlets and watercourses to collection areas for infiltration or other means of removal (dewatering) Materials Management and Waste Management Materials management control practices consist of implementing procedural and structural BMPs for handling, storing and using construction materials to prevent the release of those materials into stormwater discharges. The amount and type of construction materials to be utilized at the site will depend upon the type of construction and the length of the construction period. The materials may be used continuously, such as fuel for vehicles and equipment, or the materials may be used for a discrete period, such as soil binders for temporary stabilization. Waste management consists of implementing procedural and structural BMPs for handling, storing and ensuring proper disposal of wastes to prevent the release of those wastes into stormwater discharges. Materials and waste management pollution control BMPs shall be implemented to minimize stormwater contact with construction materials, wastes and service areas; and to prevent materials and wastes from being discharged offsite. The primary mechanisms for stormwater contact that shall be addressed include: Direct contact with precipitation Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 26 January 2012

31 Contact with stormwater run-on and run-off Wind dispersion of loose materials Direct discharge to the storm drain system through spills or dumping Extended contact with some materials and wastes, such as asphalt cold mix and treated wood products, which can leach pollutants into stormwater A list of construction activities is provided in Section 2.6. The following Materials and Waste Management BMP selection table indicates the BMPs that shall be implemented to handle materials and control construction site wastes associated with these construction activities. Fact Sheets for Materials and Waste Management BMPs are provided in Appendix H. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 27 January 2012

32 Table 3.5 Temporary Materials Management BMPs CASQA Fact Sheet BMP Name Meets a Minimum Requirement (1) BMP used YES NO If not used, state reason WM-01 Material Delivery and Storage WM-02 Material Use WM-03 Stockpile Management WM-04 Spill Preservation and Control WM-05 Solid Waste Management WM-06 Hazardous Waste Management WM-07 Contaminated Soil Management Contaminated soil is not expected WM-08 Concrete Waste Management WM-09 Sanitary-Septic Waste Management WM-10 Liquid Waste Management Drilling and dredging is not expected for this project Alternate BMPs Used: If used, state reason: (1) Applicability to a specific project shall be determined by the QSD. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 28 January 2012

33 Material management BMPs shall be implemented in conformance with the following guidelines and in accordance with the BMP Fact Sheets provided in Appendix H. If there is a conflict between documents, the Site Map will prevail over narrative in the body of the SWPPP or guidance in the BMP Fact Sheets. Site specific details in the Site Map prevail over standard details included in the Site Map. The narrative in the body of the SWPPP prevails over guidance in the BMP Fact Sheets. Material Delivery and Storage WM-l Material Delivery and Storage - A staging area will be designated at the project site by the Project Manager. The staging area will be used for storage, as needed. Construction materials will be delivered to the site and used quickly. Chemicals will be stored in watertight containers (with appropriate secondary containment to prevent any spillage or leakage) or in a completely enclosed storage shed. Spills and leaks will be contained and cleaned immediately. The exposure of construction materials to precipitation will be minimized. This does not include materials and equipment that are designed to be outdoors and exposed to environmental conditions (i.e. poles, equipment pads, cabinets, conductors, insulators, bricks, etc.). Backfill materials will be stockpiled per BMP WM-3 "Stockpile Management" when not in use. Material Use WM-2 Material Use Hazardous materials use will be minimized onsite, and Material Safety Data Sheets (MSDS) will be available for all materials. Materials will be used only when and where needed to complete the construction activity. Use of erodible landscape materials will be discontinued two (2) days prior to a forecasted rain event, and materials will be covered/stored. Stockpile Management WM-3 Stockpile Management - Any stockpiles will be located a minimum of 50 feet away from concentrated flows of stormwater, drainage courses, and inlets. All stockpiles will be bermed. Additionally, stockpiles will be covered at all times (to protect them from the wind and the rain) when they are not actively being used. Stockpiles that are unstabilized during construction activities will be sprayed with water as needed for dust control. Spill Preservation and Control WM-4 Spill Prevention and Control - The Contractor will assign and train appropriate spill response personnel. Oil, grease, and fuel will be prevented from leaking to the ground, storm drains or surface waters. All spills and leaks will be reported, contained and cleaned up immediately. All spill and leak wastes will be properly disposed of. The Project Manager and the Engineering Project Manager will be immediately notified of any spills and leaks. Spill and leak clean-up materials will be located near storage, unloading and use areas. Solid Waste Management WM-5 Solid Waste Management- Solid wastes will be loaded directly into trucks and/or waste disposal containers for off-site disposal. Waste disposal containers will be covered at the end of every business day and during rain events. Discharges from waste disposal containers will be prevented from discharging to the stormwater drainage system or receiving water. Construction Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 29 January 2012

34 debris and litter from the project will be removed weekly and by the end of the project. Collected litter and debris will not be placed by drain inlets or drainage systems. Hazardous Waste Management WM-6 Hazardous Waste Management - If hazardous materials are encountered or used, such materials will be handled, treated, stored, and disposed of per the project's Special Provisions and all applicable laws and regulations. Hazardous spills will be reported, contained and cleaned up immediately. Concrete Waste Management WM-8 Concrete Waste Management- All PCC waste shall be collected and properly disposed of. The waste shall be collected by sweeping, shoveling, and/or other mechanical means. The waste should not be allowed to enter the storm drains or watercourses. An above grade or mobile concrete washout will be constructed or placed at the staging area if concrete trucks or concrete equipment will be washed on-site. The washout will be located a minimum of 50 feet away from concentrated flows of stormwater, drainage courses, and inlets. Additional washouts will be utilized as needed. Washouts will be contained so that there is no discharge into the underlying soil and onto the surrounding areas. Sanitary-Septic Waste Management WM-9 Sanitary/Septic Waste Management- A licensed service will deliver and maintain portable restrooms to the project area. The restrooms will be located away from traffic and drainage facilities on level hard-packed or paved surfaces. Portable restrooms will be contained to prevent discharges of pollutants to the stormwater drainage system or receiving water. The restrooms will be inspected regularly for cleanliness, leaks and spills. They will be cleaned and replaced when needed. 3.4 POST CONSTRUCTION STORMWATER MANAGEMENT MEASURES Post construction BMPs are permanent measures installed during construction, designed to reduce or eliminate pollutant discharges from the site after construction is completed. The Project Owner (Riverside County Flood Control and Water Conservation District) is responsible for post-construction BMPs (inspection, long term maintenance, etc.). The Owner will identify site design, source controls and treatment controls that will be included in the permanent project as well as a funding mechanism for long term BMP maintenance as applicable. The General Permit requires that all dischargers implement BMPs to reduce pollutants in stormwater discharges that are reasonably foreseeable after all construction phases have been completed at the site. The project is located in an area subject to the requirements of the Santa Ana Regional Water Quality Control Board's Phase I Municipal Separate Storm Sewer System (MS4) Permit (Order No. R ) and the run-off reduction requirements therein. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 30 January 2012

35 Section 4 BMP Inspection and Maintenance 4.1 BMP INSPECTION AND MAINTENANCE This section is taken directly from Attachment A of the Construction General Permit. LUP Type 1 Monitoring and Reporting Requirements a. LUP Type 1 Inspection Requirements i. LUP Type 1 dischargers shall ensure that all inspections are conducted by trained personnel. The name(s) and contact number(s) of the assigned inspection personnel should be listed in the SWPPP. ii. LUP Type 1 dischargers shall ensure that all visual inspections are conducted daily during working hours and in conjunction with other daily activities in areas where active construction is occurring. iii. LUP Type 1 dischargers shall ensure that photographs of the site taken before, during, and after storm events are taken during inspections, and submitted through the State Water Board's SMARTS website once every three rain events. iv. LUP Type 1 dischargers shall conduct daily visual inspections to verify that: (1) Appropriate BMPs for stormwater and non-stormwater are being implemented in areas where active construction is occurring (including staging areas); (2) Project excavations are closed, with properly protected spoils, and that road surfaces are cleaned of excavated material and construction materials such as chemicals by either removing or storing the material in protective storage containers at the end of every construction day; (3) Land areas disturbed during construction are returned to pre-construction conditions or an equivalent protection is used at the end of each workday to eliminate or minimize erosion and the possible discharge of sediment or other pollutants during a rain event. v. Inspections may be discontinued in non-active construction areas where soildisturbing activities are completed and final soil stabilization is achieved (e.g., paving is completed, substructures are installed, vegetation meets minimum cover requirements for final stabilization, or other stabilization requirements are met). vi. Inspection programs are required for LUP Type 1 projects where temporary and permanent stabilization BMPs are installed and are to be monitored after active construction is completed. Inspection activities shall continue until adequate permanent stabilization is established and, in areas where re-vegetation is chosen, until minimum vegetative coverage is established in accordance with Section C.1 of this Attachment. b. LUP Type 1 Monitoring Requirements for Non-Visible Pollutants: LUP Type 1 dischargers shall implement sampling and analysis requirements to monitor nonvisible pollutants associated with (1) construction sites; (2) activities producing Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 31 January 2012

36 pollutants that are not visually detectable in stormwater discharges; and (3) activities which could cause or contribute to an exceedance of water quality objectives in the receiving waters. i. Sampling and analysis for non-visible pollutants is only required where the LUP Type 1 discharger believes pollutants associated with construction activities have the potential to be discharged with stormwater runoff due to a spill or in the event there was a breach, malfunction, failure and/or leak of any BMP. Also, failure to implement BMPs may require sample collection. (1) Visual observations made during the monitoring program described above will help the LUP Type 1 discharger determine when to collect samples. (2) The LUP Type 1 discharger is not required to sample if one of the conditions described above (e.g., breach or spill) occurs and the site is cleaned of material and pollutants and/or BMPs are implemented prior to the next storm event. ii. LUP Type 1 dischargers shall collect samples down-gradient from all discharge locations where the visual observations were made triggering the monitoring, and which can be safely accessed. For sites where sampling and analysis is required, personnel trained in water quality sampling procedures shall collect stormwater samples. iii. If sampling for non-visible pollutant parameters is required, LUP Type 1 dischargers shall ensure that samples be analyzed for parameters indicating the presence of pollutants identified in the pollutant source assessment required in Section J.2.a.i. iv. LUP Type 1 dischargers shall collect samples during the first two hours of discharge from rain events that occur during business hours and which generate runoff. v. LUP Type 1 dischargers shall ensure that a sufficiently large sample of stormwater that has not come into contact with the disturbed soil or the materials stored or used on-site (uncontaminated sample12) will be collected for comparison with the discharge sample. Samples shall be collected during the first two hours of discharge from rain events that occur during daylight hours and which generate run off. vi. LUP Type 1 dischargers shall compare the uncontaminated sample to the samples of discharge using field analysis or through laboratory analysis. Analyses may include, but are not limited to, indicator parameters such as: ph, specific conductance, dissolved oxygen, conductivity, salinity, and Total Dissolved Solids (TDS). vii. For laboratory analyses, all sampling, sample preservation, and other analyses must be conducted according to test procedures pursuant to 40 C.F.R. Part 136. LUP Type 1 dischargers shall ensure that field samples are collected and analyzed according to manufacturer specifications of the sampling devices employed. Portable meters shall be calibrated according to manufacturer's specification. viii. LUP Type 1 dischargers shall ensure that all field and/or analytical data are kept in the SWPPP document. c. LUP Type 1 Visual Observation Exceptions Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 32 January 2012

37 i. LUP Type 1 dischargers shall be prepared to collect samples and conduct visual observation (inspections) to meet the minimum visual observation requirements of this Attachment. The Type 1 LUP discharger is not required to physically collect samples or conduct visual observation (inspections) under the following conditions: (1) During dangerous weather conditions such as flooding and electrical storms; (2) Outside of scheduled site business hours. (3) When access to the site is unsafe due to storm events. ii. If the LUP Type 1 discharger does not collect the required samples or visual observation (inspections) due to these exceptions, an explanation why the sampling or visual observation (inspections) were not conducted shall be included in both the SWPPP and the Annual Report. d. Particle Size Analysis for Risk Justification: LUP Type 1 dischargers utilizing justifying an alternative project risk shall report a soil particle size analysis used to determine the RUSLE K-Factor. ASTM D-422 (Standard Test Method for Particle-Size Analysis of Soils), as revised, shall be used to determine the percentages of sand, very fine sand, silt, and clay on the site. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 33 January 2012

38 Section 5 Training Appendix L identifies the QSPs for the project. To promote stormwater management awareness specific for this project, periodic training of job-site personnel shall be included as part of routine project meetings (e.g., daily/weekly tailgate safety meetings), or task specific trainings as needed. The QSP shall be responsible for providing this information at the meetings, and subsequently completing the training logs shown in Appendix K, which identifies the site-specific stormwater topics covered as well as the names of site personnel who attended the meeting. Tasks may be delegated to trained employees by the QSP provided adequate supervision and oversight is provided. Training shall correspond to the specific task delegated including: SWPPP implementation; BMP inspection and maintenance; and record keeping. Documentation of training activities (formal and informal) is retained in SWPPP Appendix K. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 34 January 2012

39 Section 6 Responsible Parties and Operators 6.1 RESPONSIBLE PARTIES Approved Signatories who are responsible for SWPPP implementation and have authority to sign permit-related documents are listed below. Written authorizations from the LRP for these individuals are provided in Appendix L. The Approved Signatories assigned to this project are: Name Title Phone Number Warren D. Williams, P.E. General Manager-Chief Engineer Robert J. Cullen, P.E. Chief of Design and Construction QSPs identified for the project are identified in Appendix L. The QSP shall have primary responsibility and significant authority for the implementation, maintenance and inspection/monitoring of SWPPP requirements. The QSP will be available at all times throughout the duration of the project. Duties of the QSP include but are not limited to: Implementing all elements of the General Permit and SWPPP, including but not limited to: o Ensuring all BMPs are implemented, inspected, and properly maintained; o Performing non-stormwater and stormwater visual observations and inspections; o Performing non-stormwater and storm sampling and analysis, as required; o Performing routine inspections and observations; o Implementing non-stormwater management, and materials and waste management activities such as monitoring discharges; general Site clean-up; vehicle and equipment cleaning, fueling and maintenance; spill control; and ensuring that no materials other than stormwater are discharged in quantities which will have an adverse effect on receiving waters or storm drain systems, etc.; The QSP may delegate these inspections and activities to an appropriately trained employee, but shall ensure adequacy and adequate deployment. Ensuring elimination of unauthorized discharges. The QSPs shall be assigned authority by the LRP to mobilize crews in order to make immediate repairs to the control measures. Coordinate with the Contractor(s) to assure all of the necessary corrections/repairs are made immediately and that the project complies with the SWPPP, the General Permit and approved plans at all times. Notifying the LRP or Authorized Signatory immediately of off-site discharges or other non-compliance events. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 35 January 2012

40 6.2 CONTRACTOR LIST Contractor Name: Title: Company: Address: Phone Number: Number (24/7): Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 36 January 2012

41 Section 7 (M&RP) Monitoring and Reporting Program LUP Summary of Monitoring Requirements: VISUAL INSPECTIONS SAMPLE COLLECTION PRE- STORM DAILY EVENT DAILY NON-VISIBLE LUP TYPE SITE BMP BASELINE STORM BMP POST STORM STORMWATER DISCHARGE RECEIVING WATER (WHEN APPLICABLE) 1 X X Construction Site Monitoring Program Requirements for Risk Level OBJECTIVES The purpose of the monitoring and reporting program (M&RP) is to protect water quality during the construction project. The M&RP must be prepared prior to the start of construction and implemented at all times throughout the life of the project. The QSP will implement the M&RP and the QSD will revise the plan as necessary. The M&RP must be part of the SWPPP, included as a separate chapter. 7.2 M&RP IMPLEMENTATION SCHEDULE The Contractor shall implement the requirements of this Section at the time of commencement of construction activity and until the activity is complete and the site is stabilized. The QSD shall revise the M&RP when: Site conditions or construction activities change such that a change in monitoring is required in order to comply with the requirements and intent of the COP. The Regional Board requires the QSD revise the M&RP based on its review of the document. Revisions may include conducting additional site inspections, submitting reports, and certifications. Revisions shall be submitted via postal mail or electronic . The Regional Board may require additional monitoring and reporting program requirements including sampling and analysis of discharges to CWA 303(d) - listed water bodies. Additional requirements imposed by the Regional Board shall be consistent with the overall monitoring effort in the receiving waters. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 37 January 2012

42 7.3 LUP TYPE 1 MONITORING AND REPORTING REQUIREMENTS Inspection Requirements a. Ensure all inspections are conducted by trained personnel. Space is provided below to list the name and contact information of the person conducting the inspections. Name: Phone Number: Emergency Phone Number: Qualifications: The person listed above shall include a copy of their training qualifications in Appendix K of this SWPPP. b. All visual inspections are to be conducted daily during working hours and in conjunction with other daily activities in areas where active construction is occurring. c. Photographs of the site shall be taken before, during, and after storm events and during site inspections. These photographs shall be submitted through SMARTS website once every three rain events. d. Daily visual site inspection shall be conducted to verify that: 1. Appropriate BMPs for stormwater and non-stormwater are being implemented in areas where active construction is occurring (including staging areas). 2. Excavations are closed, with properly protected spoils, and that road surfaces are cleaned of excavated material and construction materials such as chemicals by either removing or storing the material in protective storage containers at the end of every construction day. 3. Land areas disturbed during construction are returned to pre-construction conditions or an equivalent protection is used at the end of each workday to eliminate or minimize erosion and the possible discharge of sediment or other pollutants during a rain event. e. Inspections may be discontinued in non-active construction areas where soil-disturbing activities are completed and final soil stabilization is achieved (e.g., paving is completed, substructures are installed, vegetation meets minimum cover requirements for final stabilization, or other stabilization requirements are met). f. An inspection program is required where temporary and permanent stabilization BMPs are installed and are to be monitored after active construction is completed. Inspection activities shall continue until adequate permanent stabilization is established and, in areas where revegetation is chosen, until minimum vegetative coverage is established in accordance with Section C.A of Attachment A of the CGP. This project does not include the planting and reestablishment of vegetation. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 38 January 2012

43 7.4 MONITORING FOR NON-VISIBLE POLLUTANTS Non-Visible Pollutant Sampling Strategy (NVPSS) As a Type 1 LUP this project is subject to the sampling requirements for non-visible pollutants. Sampling and analysis is required to determine if non-visible pollutants are present in the discharges from the construction activity and enter the receiving water. This site shall monitor non-visible pollutants associated with (1) construction sites; (2) activities producing pollutants that are not visually detectable in stormwater discharges; and (3) activities which could cause or contribute to an exceedance of water quality objectives in the receiving waters. Sampling and analysis for non-visible pollutants is required only if the Contractor believes pollutants associated with construction activities have the potential to be discharged with stormwater runoff due to a spill or in the event there was a breach, malfunction, failure and/or leak of any BMPs. Also, failure to implement BMPs may require sample collection. In the event non-visible pollutant sampling is required it is anticipated that the time required to perform stormwater sampling will be approximately one half hour per location. In order to complete stormwater sampling during the required time period (up to 2 hours after the start of runoff from the storm event), sufficient personnel shall be assigned to complete the task based on the number of sampling locations. It is also anticipated that stormwater monitoring and visual observations may identify visible pollutants leaving the site, and indicate a need for action on the construction site to identify and repair failed or compromised BMPs. If necessary, additional on-call personnel will respond when action is required in the field to identify and repair failed or compromised BMPs. It is anticipated that for this project, two people will be needed to collect stormwater samples and one person will be needed on-call for as-needed response. The Contractor will be responsible to list the personnel responsible for site inspection, stormwater sampling, and as-needed response in the space provided below: Name: Responsibility: Phone Number: Name: Responsibility: Phone Number: Name: Responsibility: Phone Number: Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 39 January 2012

44 7.4.2 Identification of Potential Sources of Non-Visible Pollutants Per Attachment A of the CGP LUP Type 1 dischargers shall implement sampling and analysis requirements to monitor non-visible pollutants associated with (1) construction sites; (2) activities producing pollutants that are not visually detectable in stormwater discharges; and (3) activities which could cause or contribute to an exceedance of water quality objectives in the receiving waters Pre-Construction Activities No pre-construction activities were in place prior to the commencement of construction activities associated with this project Construction Activities During the construction process, the Contractor and Subcontractors will use a mix of heavy equipment and vehicles typical for construction activities such as; trenching, road construction, paving, and transport of construction materials. Operation and maintenance of this equipment may cause oil and grease and petroleum hydrocarbons to come into contact with stormwater Construction Materials During the construction process, many different materials will be used on-site. Table 7.1 lists various categories of construction activities as well as typical construction materials that may be used during those activities. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 40 January 2012

45 Activity Asphalt Work Concrete Work Cleaning Vehicle and Equipment Pipe Work Painting Table 7.1 List of Typical Construction Materials Typical Materials Asphalt (conventional and rubberized) Asphalt emulsion Asphalt releases- Monocyclic Terpet Liquid asphalt Aluminate Aluminum sulfate Concrete curing compound - resin based "Monkey blood" (a retardant compound used for concrete curing) Arbitolor Arabitol (1,2,3,4,5-pentane pentol) ph from concrete sawing or freshly placed or washed off Portland cement products Cement Diesel fuel (sprayed on wooden forms as a nonsticking compound between concrete and wood) Various citrus based cleaners Solvents Thinners Detergents Trisodium phosphate Sodium Hypochlorite Oil Grease Coolants Diesel Gasoline Hydraulic fluid Pipe joint compound ABS and PVC primers Chlorine -water line flushing disinfection Paints Thinners Mineral spirits Latex paint (propylene glycol) Epoxy Silicone Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 41 January 2012

46 Activity Landscaping Brick Work Soil Stabilization Dust Palliatives - petroleum based (Note these are not recommended because of groundwater concerns and plant growth inhibition) Dust Palliatives- salts (note these are not recommended because they inhibit plant Dust Palliatives- organic Woodwork Structural finishing Typical Materials Herbicides Pesticides Fertilizers Mulch Compost Etching compounds Acid wash of brick work Wood fiber mulch Compost Wood and bark chips Straw mulch Emulsified asphalt Lime Plant gums Bonded fiber matrix Coconut fiber Paper mulch Grass Various proprietary products Bunker oil Asphalt primer Emulsified asphalt Magnesium chloride Calcium chloride Natural Calcium lignosulfate Sodium lignosulfate Ammonium Lumber treatment/ preservative Water sealants Stains Sawdust Plaster Fire retardants Epoxies Paints (see painting) Tar Urethane Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 42 January 2012

47 7.4.6 Non-Visible Pollutants to be Monitored Based on the sources of non-visible pollutants identified above, the following indicator parameters will be analyzed to determine if pollutants are being conveyed from the site by stormwater: ph Biological Oxygen Demand (BOD) Nitrate Total Dissolved Solids (TDS) Oil and Grease Additional testing may be necessary based on the pollutant suspected to have entered stormwater. The analyses will be performed by an analytical laboratory that has been accredited by the California Department of Health Services Environmental Laboratory Accreditation Program (ELAP). The laboratory will be selected by the Contractor prior to the commencement of construction activities. The following analyses may be performed in the field using field meters: ph and Turbidity. This Non-Visible Pollutant Sampling Strategy (NVPSS) assumes that field meters will not be used, and all constituents will be analyzed by an analytical laboratory. If field meters are used, the meters will be calibrated, maintained, and operated by trained staff according to the manufacturer's specifications, and calibration records will be stored at the end of this document. The Contractor has selected and contacted the following analytical laboratory(ies) for sample analyses. (The Contractor will be responsible to list the name, address, phone number, and contact person of the selected laboratory): Analytical laboratory: Street: City, State Zip Code: Phone Number: Contact Name: The laboratory will provide properly cleaned and preserved (if applicable) sampling containers (bottles) for the samples, and labels on the sample bottles. The sample bottle labels will identify the analysis to be performed and any preservative contained in the bottles, and provide room for recording the sample location and time and date of collection. The laboratory will also provide chain-of-custody forms. The laboratory will conduct analyses in accordance with 40 CFR Part 136. Table 7.2 lists the EPA method numbers for the laboratory analytical methods to be used and requirements for sample collection bottles, preservatives, and holding times for the analyses. The holding time is the amount of time after collection of the sample within which the laboratory analysis must be performed. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 43 January 2012

48 Table 7.2 Laboratory Requirements for Sample Collection Bottles, Preservatives, and Holding Times for the Constituents to be Monitored Analyte EPA Analytical Method Number Minimum Sample Volume 1 ph EPA ml BOD Sampling Container Preservative 2 Holding Time Polypropylene or glass None Analyze immediately upon receipt at the laboratory EPA or ml Polypropylene None 24 hours Nitrate as EPA Polypropylene Nitrogen or ml or glass None 48 hours TDS EPA ml Polypropylene None 7 days Oil and Grease EPA L Amber glass HCl or H 2 SO 4 to ph<2 28 days 1 Minimum sample volume recommended. Specific volume requirements will vary by laboratory and must be verified with the laboratory when bottles are ordered. 2 Do not pre rinse or overfill sample containers that contain preservative. 3 All samples must be kept chilled to 4 C (keep samples on ice for delivery to analytical laboratory) Implementation of NVPSS Sampling and analysis is required when non-visible pollutants have the potential to contact stormwater and be conveyed from the construction site by stormwater into a storm drainage system or water body. Some examples of this situation are: Where construction materials and compounds are stored or used such that they are in contact with stormwater. For construction projects that utilize soil amendments that are in contact with stormwater runoff, unless independent test data are available that demonstrate acceptable concentration levels. When a leakage or spill occurs prior to a storm event and is not fully contained and cleaned. When a leakage or spill occurs during a storm event and it cannot immediately be isolated and/or cleaned up, and the possibility of an off-site discharge exists. During regular inspections of stockpiles it is discovered that cover and containment BMPs have been compromised and stormwater comes in contact with the materials, and the resulting runoff discharges into a storm drain system or water body. If material storage BMPs have been compromised, breached, or have failed. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 44 January 2012

49 If the Contractor determines that none of the conditions listed above exist at the site, and the following conditions are met, stormwater sampling may not be required. However, this NVPSS will be maintained in the SWPPP and sampling equipment and bottles will be kept at the site as a contingency sampling plan to be used in the event of an incidental discharge. Under the following conditions, sampling may not be required to be implemented: Where a construction project is "self-contained", meaning that the project contributes no runoff to other sources or areas and that any potential discharge of pollutants can be totally contained within the construction project site without discharging to a water body or storm drain system. Where construction materials and compounds are kept or used so that they are not in contact with stormwater (e.g., in water tight containers, under a water-tight roof, inside a building, etc.). Where for specific pollutants, the BMPs implemented at the construction site fully contain the exposed pollutants (e.g., bermed concrete washout area). For building materials that are in their final constructed form (e.g., fence materials, support structures and equipment that will remain exposed at the completion of the project, etc.). Where pollutants that may have been spilled or released on-site but have been properly cleaned up and stormwater exposure has been eliminated prior to a storm event. For stockpiles of construction materials for which both cover and containment BMPs have been properly implemented to protect them from run-on and from contributing pollutants to stormwater runoff. The Contractor will apply a benchmark criteria discussed below to cease stormwater sampling at outfalls where laboratory data for three consecutive rain events for the specific outfall indicates that the discharges at that outfall are below benchmarks for the analyte and no new construction activity or materials have been added in the area draining to the outfall. However, if construction activity in the area draining to the outfall changes, a spill or breach occurs within the drainage area, or a BMP in the area is observed to be compromised, the Contractor will re-institute testing at that outfall Monitoring Locations The objective of sampling direct runoff from the construction site for non-visible pollutants is to determine whether materials or activities on the site have contributed to contamination of runoff leaving the site. The control sample is a sample of stormwater that has not come in contact with the disturbed soil or the materials stored or used on-site (''uncontaminated sample"). Uncontaminated samples may be collected from discharge locations from the construction site where activities are not occurring on the site. The Contractor will identify the non-visible pollutant sampling locations based on the activities occurring on the jobsite which might contribute to a discharge of non-visible pollutants. Space is provided below to list monitoring locations for non-visible pollutants as applicable. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 45 January 2012

50 Site Sampling Locations for Non-Visible Pollutants. The monitoring locations below represent locations where stormwater runoff has come into contact with material which has spilled or leaked at the project site. Monitoring Location A: Immediately upstream of existing catch basins on Avenue L, approximately 150' east of 4 th Street (see Site Maps Sheet 2). Monitoring Location B: Monitoring Location C: Monitoring Location D: Monitoring Location E: Control Samples Stormwater uncontaminated sampling locations (control locations) must represent locations where stormwater runoff has not come into contact with material which has spilled or leaked at the project site. The below locations represent the project's control sampling locations. Monitoring Location F: Sundar/Avenue L intersection (see Site Maps Sheet 3) Monitoring Location G: 2 nd Place/Avenue L intersection (see Site Maps Sheet 7) Monitoring Location H: Bryant Street, approximately 100' north of Avenue L intersection (see Site Maps Sheet 13) Monitoring Location I: North of project end, on Douglas Street (see Site Maps Sheet 17) Sample Collection Strategy and Schedule A sample collection schedule is not applicable to this program due to the variable nature of the weather as well as the changing construction activities occurring on-site. Stormwater runoff samples will be collected during storm events in which material has leaked or spilled or there is reason to believe the discharge of stormwater from the project may result in the discharge of non-visible pollutants regardless of the time of year or status of the construction. Sampling will be conducted during the first 2-hours of runoff, during business hours only Weather Tracking Each day, the QSP shall consult the NOAA website at for the current weather forecast. Weather reports should be printed and maintained with the SWPPP in Appendix O, "Weather Reports". If a storm is forecasted this will trigger mobilization for non-visible pollutant stormwater sample collection. Table 7.3 describes different stages of action based on forecasted weather. Table 7.3 refers to Sections below for actions such as mobilization, sampling and post-storm event procedures. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 46 January 2012

51 Table 7.3 Action Based on Forecasted Weather Action Level Forecast Action Non- No storm systems developing Monitor weather forecasts weekly. Monitoring Standby Potential storm system developing Monitor weather forecasts daily, during business hours. Pre-Alert Storm event expected within the next 48 hours Begin mobilization. Monitor weather forecasts daily, during business hours. Alert Go Post-Storm Event Storm event expected within the next 24 hours Storm event has started Precipitation and runoff have ceased or stormwater sampling and site inspections have been completed Complete mobilization. Monitor weather forecasts every 6 hours. Note time of storm event start and record on Sampling Event Worksheet. Begin storm event field visual inspection. Note time of runoff start and record on storm event worksheet. Proceed with sampling at start of runoff. Note: Only non-visible pollutant sampling is required for this project. Demobilize and complete storm event paperwork. Monitor weather forecasts daily or weekly depending on whether further storm systems are currently developing Pre-Event Mobilization (Action Levels Pre-Alert and Alert) Mobilization for stormwater sampling must begin when a storm event is predicted to occur within 48 hours. Use the following procedure to mobilize for stormwater sampling. Begin early because storms may approach faster than originally forecasted. When a storm is predicted to occur within the next 48 hours (Pre-Alert): 1. Review inventory of stormwater sampling equipment - use Sampling Equipment Checklist. 2. If necessary, obtain any equipment that has been removed from the inventory. When a storm event is predicted to occur within 24 hours (Alert): 1. Load the sampling equipment and paperwork into the vehicle that will be used for storm event field inspection and stormwater sampling. 2. Contact the analytical laboratory if it is anticipated that the delivery of samples may occur after the laboratory's normal business hours to arrange a late or weekend drop-off of samples. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 47 January 2012

52 On the day that the storm event is predicted to occur, buy ice and place the ice in the cooler Sampling Equipment All sampling equipment will be kept on-site in an accessible location. Typical sampling equipment will include: Sample bottle sets appropriate to the samples that will be collected. Note all sample bottles require labels. New, clean sample collection containers appropriate to the sample locations, "disposable" containers for single use are preferred. This may include plastic buckets with handle and pourable lip, plastic cups, plastic dipper cup attached to pole, plastic dustpans (for collection of shallow sheet flow). Sampling Event Worksheet Visual Observation Worksheets Chain-of-Custody forms Clipboard Wax pencils, felt tip markers, or other appropriate writing instrument for wet conditions Paper towels Crowbar, if necessary to access cleanout or manhole Rope, if necessary for lowering buckets into flow Keys or record of lock combinations, if necessary to access sampling locations Any other equipment necessary for site access Alconox soap Gallon jugs of distilled water 5-gallon bucket or other container to carry equipment 5-gallon bucket to rinse sampling equipment Cooler(s) adequate to carry filled sample bottles Field meters, if applicable When a storm event is expected to occur, ice will be purchased and stored in the cooler(s) Sample Bottles Sample bottles are to be provided by the analytical laboratory. The sample bottles require labels indicating the analysis, preservative (if applicable), and space to record the sample collection location, date and time. The laboratory must provide bottles appropriate to the expected sampling parameters, and certify that the bottles are clean. An order for bottles must be placed prior to the first mobilization of the season so that the bottles will be on hand for mobilization. Enough bottles should be ordered for multiple events in order to have plenty of bottles on hand. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 48 January 2012

53 Different bottles are used for different sampling parameters. Table 7.2 lists sampling parameters and appropriate bottles. Sets of bottles should be pre-assembled for the suite of analyses for each location to be sampled (i.e., for each sampling location on the project, a box or Ziploc bag containing the appropriate sample bottles for the location should be prepared in advance of sampling). The bottles may be pre-labeled with the sampling location if known Sample Collection and Handling Upon the start of a sampling storm event, the personnel responsible for site inspection and stormwater sampling will begin the site inspection and proceed to the sampling points to collect samples of stormwater runoff. All necessary equipment mobilized during pre-event mobilization will be transported to the sampling locations. Samples will be collected during the first two hours of runoff from the site. Samples will be collected manually "grab samples" by filling the bottles directly in the flow of stormwater where possible, or by dipping a bucket or other container in the flow and decanting the stormwater into the bottles. For samples that cannot be collected directly into the sample bottle, new, clean, disposable buckets or other containers will be used for each sampling location. The sample bottle or sampling container will be pre-rinsed in the flow of stormwater to be collected prior to collection of the sample, with the exception of sample bottles that contain preservatives. Bottles will be filled completely and closed tightly. If it is necessary to use the same equipment at multiple locations, the equipment will be rinsed in a bucket with Alconox soap and distilled water between sample locations. The time and date of the sample and the sampling location will be recorded on the sample bottles. Each sample will be recorded on a chain of custody form. Samples will be placed in a cooler with ice. Concurrently with sample collection, visual observation of runoff at each sampling location will be performed. A Visual Observation Worksheet will be filled for each sampling location and storm event. Visual Observation Worksheets are provided in Appendix A. If visual observations indicate that visible pollutants are being transported from the site, appropriate personnel will be contacted to determine the source of the pollutants, contain the pollutants, and repair or replace any BMPs that are determined to have failed or been compromised. After samples have been collected from all locations, they will be immediately transported to the analytical laboratory. Samples must be transported to the laboratory on the day of collection to ensure that the laboratory may complete the requested analyses within the required holding time (refer to Table 7.2). If sample collection will be completed outside of the analytical laboratory's normal business hours, call the laboratory in advance to arrange for a late or weekend drop-off of the samples. The chain-of-custody form will be transported to the analytical laboratory with the samples. Upon receipt of the samples, the analytical laboratory will log in the samples received in their logbook. The sampling personnel and the analytical laboratory will sign the chain-of-custody form releasing the samples to the analytical laboratory, and the analytical laboratory will provide a signed copy of the chain-of-custody form to the person delivering the samples. If the samples are transported by a courier, the sampling personnel and the courier will sign the chain-ofcustody form releasing the samples to the courier, and the courier will release the samples to the analytical laboratory by the same procedure. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 49 January 2012

54 Post-Storm Event Procedures Following completion of stormwater sampling and site inspection for a storm event, all Visual Observation Worksheets and field Visual Inspection Forms will be reviewed to determine if further action is required on the site to correct any failed or compromised BMPs. Corrective actions that were taken on the site will be recorded on the Visual Observation Worksheets where visual observations indicated that action was required. All sampling equipment will be cleaned and inspected. New bottles will be obtained to replace bottles used for sampling as necessary. Any compromised pieces of equipment will be replaced. The Sampling Event Worksheet will be completed and filed with the Visual Observation Worksheets and the Chain of Custody forms in Appendix G of this SWPPP Analytical Data Evaluation Typical laboratory turnaround time to return sample results ranges from 10 days to several weeks. If visual observations made during the storm event indicate that action is required in the field to correct failed or compromised BMPs, the action will be taken immediately, before sample results are received. Upon receipt of sample results, the results will be reviewed and compared with Visual Observation Worksheets and field Visual Inspection Forms to determine whether further action is required on the site to upgrade BMPs (e.g., if it is found that visual observations in the field did not indicate that action was required, but sample results exceed benchmark levels discussed below). The Contractor will be responsible to designate the person(s) responsible for this task and record the information: Name: Phone number: If it is determined that BMPs must be upgraded based on sample results, the SWPPP will be amended accordingly and the SWPPP Amendment is to be logged in at the beginning of this SWPPP and certified by the QSD in Appendix D. Table H.4 Benchmark Criteria for Decision Making Analyte Benchmark Concentration Reference ph <6.5 or>8.5 Basin Plan BOD >30 mgll USEPA* Nitrate >45 mg/1 as nitrate Basin Plan TDS >500 mg/l Basin Plan Oil and Grease >15 mg/1 USEPA *United States Environmental Protection Agency Multi-Sector Industrial Permit When laboratory analysis shows that a tested analyte exceeds the benchmark concentration, the Contractor will perform a root cause analysis. Records of any corrective action take are to be kept in Appendix G of this SWPPP. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 50 January 2012

55 Sampling and Analysis Records All Sampling Event Worksheets, Visual Observation Worksheets, chain-of-custody forms laboratory analysis data, and other documentation relating to sampling and analysis will be kept on-site with the SWPPP, which is to remain at the construction site at all times until a Notice of Termination for the project is submitted and approved. The General Construction Permit requires that records of all inspections, compliance certifications, and non-compliance reporting must be retained for a period of at least three years from the date generated or after project completion Modification to This Procedure The QSD will review this procedure after the first sampled storm event and periodically during its implementation, and will revise procedures as needed. Anticipated situations that may cause the QSD to revise the SWPPP or NVPSS include but are not limited to: Comparison of analytical results with benchmarks for analytes tested Changes in construction activity occurring on-site that result in changes to pollutants of concern Training For Sampling Personnel Samples will be collected by personnel trained in field sample collection and the objectives of this NVPSS. The Contractor will provide training prior to the first mobilization for stormwater sample collection. Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 51 January 2012

56 SAMPLING EQUIPMENT CHECKLIST NON-VISIBLE POLLUTANT SAMPLING EVENT Sample bottle sets with labels attached Complete this box upon receiving bottles from analytical laboratory Sample bottle sets include: for ph for Biological Oxygen Demand (BOD) for Nitrate or Nitrate as Nitrogen for Total Dissolved Solids (TDS) for Oil and Grease Sample collection containers Clipboard Sampling Event Worksheet Visual Observation Worksheet Chain-of-Custody forms Wax pencils, sharpie markers, or other writing instrument Paper towels Crowbar Rope Keys (or lock combinations ) Alconox soap Gallon jugs of distilled water 5-gallon bucket or other container to carry equipment 5-gallon bucket to rinse sampling equipment Cooler(s) adequate to carry filled sample bottles Field meters Other Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 52 January 2012

57 Storm Event Date(s) SAMPLING EVENT WORKSHEET NON-VISIBLE POLLUTANT SAMPLING EVENT Describe the reason for sampling including a spill or breach, failure of BMP, or presence of a historical non-visible pollutant. Was sample within the first 2-hours of runoff? Was storm event preceded by 48 hours of dry weather? Storm Start Time Storm End Time Runoff Start Time Total Precipitation Locations Sampled Location Sampled By Time Laboratory ID Number assigned to Samples* *Contractor to obtain a chain-of-custody form from the laboratory where samples will be taken to be processed prior to the commencement of construction activities. Action was taken to correct failed or compromised BMPs (see Visual Inspection Forms and Maintenance Record) Based on Visual Observation Worksheets and Visual Inspection Forms, action was not required to correct failed or compromised BMPs Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 53 January 2012

58 Storm Event Date Monitoring Location Sample Collection Time VISUAL OBSERVATION WORKSHEET NON-VISIBLE POLLUTANT SAMPLING EVENT Stormwater Characteristics Characteristic Observation (Circle one) Color Clear Brown Gray Yellow Red Other Clarity Clear Cloudy Opaque Floatables None Vegetation Mulch Trash Foam Other Oily Sheen None Slight Heavy Odor None Sewage Other Field Measurements if Performed Analysis Result Units ph N/A Turbidity NTU Based on visual observation of the runoff, further action is not required on-site to identify and correct failed or compromised BMPs Based on visual observation of the runoff, further action is required on-site to identify and correct failed or compromised BMPs. Describe action taken below: Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 54 January 2012

59 Section 8 References Project Plans and Specifications, DWG# prepared by RCFC&WCD. State Water Resources Control Board (2009). Order DWQ, NPDES General Permit No. CAS000002: National Pollutant Discharges Elimination System (NPDES) California General Permit for Stormwater Discharge Associated with Construction and Land Disturbing Activities. Available on-line at: stormwater/construction.shtml. State Water Resources Control Board (2010). Order DWQ, NPDES General Permit No. CAS000002: National Pollutant Discharges Elimination System (NPDES) California General Permit for Stormwater Discharge Associated with Construction and Land Disturbing Activities. Available on-line at: stormwater/construction.shtml. CASQA 2009, Stormwater BMP Handbook Portal: Construction, November 2009, Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 55 January 2012

60 Appendix A: Calculations and Risk Determination Calimesa - Avenue L Storm Drain, Stage 2 SWPPP 56 January 2012

61 CALIMESA--AVENUE L STROM DRAIN, STAGE 2 PROJECT NO AED Combined Risk Level Matrix Receiving Water Risk Low Level 1 Sediment Risk Low Medium High Level 2 High Level 2 Level 3 Project Sediment Risk: Low 1 Project RW Risk: Low 1 Project Combined Risk: Level 1 1

62 CALIMESA--AVENUE L STROM DRAIN, STAGE 2 PROJECT NO AED Sediment Risk Factor Worksheet A) R Factor A B C Entry Analyses of data indicated that when factors other than rainfall are held constant, soil loss is directly proportional to a rainfall factor composed of total storm kinetic energy (E) times the maximum 30-min intensity (I30) (Wischmeier and Smith, 1958). The numerical value of R is the average annual sum of EI30 for storm events during a rainfall record of at least 22 years. "Isoerodent" maps were developed based on R values calculated for more than 1000 locations in the Western U.S. Refer to the link below to determine the R factor for the project site. 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 Silt-size particles are easily detached and tend to crust, producing high rates and large volumes of runoff. Use Site-specific data must be submitted. Site-specific K factor guidance R Factor Value K Factor Value C) LS Factor (weighted average, by area, for all slopes) The effect of topography on erosion is accounted for by the LS factor, which combines the effects of a hillslope-length factor, L, and a hillslope-gradient factor, S. Generally speaking, as hillslope length and/or hillslope gradient increase, soil loss increases. As hillslope length increases, total soil loss and soil loss per unit area increase due to the progressive accumulation of runoff in the downslope direction. As the hillslope gradient increases, the velocity and erosivity of runoff increases. Use the LS table located in separate tab of this spreadsheet to determine LS factors. Estimate the weighted LS for the site prior to construction. LS Table LS Factor Value Watershed Erosion Estimate (=RxKxLS) in tons/acre Site Sediment Risk Factor Low Sediment Risk: < 15 tons/acre Medium Sediment Risk: >=15 and <75 tons/acre High Sediment Risk: >= 75 tons/acre Low

63 Thursday, October 20, 2011 National Pollutant Discharge Elimination System (NPDES) Recent Additions Contact Us Print Version Search NPDES: EPA Home > OW Home > OWM Home > NPDES Home > Basic Information enoi Municipal MS4s Construction Activities Industrial Activities Road-Related MS4s Menu of BMPs Green Infrastructure Urban BMP Tool Stormwater Home NPDES Topics Alphabetical Index Glossary About NPDES Rainfall Erosivity Factor Calculator for Small Construction Sites Facility Information Facility Name: Calimesa Avenue L Storm Drain, Stage 2 Start Date: 04/02/2012 End Date: 12/03/2012 Latitude: Longitutde: Erosivity Index Calculator Results AN EROSIVITY INDEX VALUE OF HAS BEEN DETERMINED FOR THE CONSTRUCTION PERIOD OF 04/02/ /03/2012. Stormwater Information Recent Additions FAQs Publications Regulations Training & Meetings Links Contacts 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. Start Over The documents on this site are best viewed with Acrobat 8.0 Office of Water Office of Wastewater Management Disclaimer Search EPA EPA Home Privacy and Security Notice Contact Us Last updated on August 07, :37 PM URL: 3

64 Thursday, October 20, 2011 Address Calimesa Avenue L Storm Drain, Stage , Google - 4