Construction Storm Water Pollution Prevention Plan

Transcription

1 Construction Storm Water Pollution Prevention Plan Summers Lane Reservoir March 3, 2016 Prepared for: City of Fort Bragg 416 North Franklin Street Fort Bragg, CA Project Site Location/Address: Summers Lane Fort Bragg, CA 3590 Iron Court Shasta Lake, California (530) fax (530)

2 Certification by Preparer Summers Lane Reservoir Construction SWPPP "I certify under a penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly 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." Bryan W. Gartner SWPPP Preparer Qualified SWPPP Developer Title Signature QSD Number 3/3/16 Date Version/Amendment Date

3 Certification by Owner Summers Lane Reservoir Construction SWPPP Owner's (or Authorized Representative) Approval and Certification of the Storm Water Pollution Prevention Plan "I certify under a penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, to the best of my knowledge and belief, the information submitted is true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Owner s Representative (print) Title Signature Date Version/Amendment Date

4 Contact List Summers Lane Reservoir Construction SWPPP Revise and replace this list as site personnel changes. QSD: Bryan Gartner Lawrence & Associates 3590 Iron Court Shasta Lake, Ca (530) QSD # Storm-Water Pollution Prevention Manager: Owner s Representative: Sergio Fuentes Engineering Technician City of Fort Bragg 416 North Franklin Street Fort Bragg, CA (707) , ext. 120 SFuentes@fortbragg.com QSP: Enter Contractor s Designated QSP Here: To be assigned Owner s Contractor c/o City of Fort Bragg 416 North Franklin Street Fort Bragg, CA (707) SFuentes@fortbragg.com

5 List of Amendments Summers Lane Reservoir Construction SWPPP No. Issue Date Reason Prepared by

6 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page i of iii Table of Contents Text Page Section 1 - Introduction General Risk Level Unique Site Features Project Schedule Electronic Reporting Contact Information/List of Responsible Parties Responsibilities of the SWPPP Preparer Responsibilities of the Storm Water Pollution Prevention Manager Section 2 - Amendments and Annual Certification Annual Compliance Certification SWPPP Amendments Section 3 - References References Section 4 - SWPPP Objectives General Implementation of Erosion Control BMPs Vicinity and Site Maps Pollutant Source Identification Erosion Control BMPs General Practices Erosion Control During Non-Rainy Construction Season Erosion Control During Winter Construction Post Construction Erosion Control Sediment Control General Sediment Control During Summer Construction Season Sediment Control During Winter Construction Tracking Control Wind Erosion Control Non-Storm Water Control Good Site Management Housekeeping Pollution Control Cost Breakdown for Water Pollution Control Construction BMP Maintenance, Inspection, and Repair Rain Event Action Plans Post-Construction Storm Water Management Post-Construction Control Practices Operation/Maintenance After Project Completion Training List of Subcontractors Other Plans/Permits Lawrence & Associates

7 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page ii of iii Table of Contents Termination of Permit Section 5 Construction Site Monitoring Plan (CSMP) General Local Rain Gauge Station Visual Monitoring Storm-Related Visual Monitoring Quarterly Non-Storm-Water Visible Pollutant Inspection Water Quality Monitoring Receiving Water Monitoring Storm-Event Monitoring Non-Visible Pollution Monitoring Water Quality Monitoring Procedures Monitoring Preparation Sample Collection and Handling Quality Assurance/Quality Control Data Management and Reporting Data Evaluation Change of Conditions Reporting Requirements NEL Violation Reports NAL Exceedance Reporting Annual Report Non-Compliance Reporting Record Keeping Tables 4-1. Critical Slope/Sheet Flow Length Combinations Required Monitoring for Risk Levels Required Monitoring Elements for Risk Levels Sample Collection, Preservation and Analysis for Storm Event Monitoring Sample Collection, Preservation and Analysis for Monitoring Non-Visible Pollutants SWPPP Attachments A. Vicinity Map B. Water Pollution Control Drawings C. BMP Consideration Checklist D. Risk Assessment Calculation E. Risk Level 2 Requirements F. Notice of Intent (NOI) G. Program for Maintenance, Inspection, and Repair of Construction Site BMPs Lawrence & Associates

8 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page iii of iii SWPPP Attachments (continued) H. Notice of Non-Compliance Table of Contents I. Storm Water Quality Construction Site Inspection Checklist J. Site Specific Rain Event Action Plan Template K. Trained Contractor Personnel Log L. SWPPP and Monitoring Program Checklist M. Annual Certification of Compliance Form N. Other Plans/Permits O. Water Pollution Control Cost Breakdown P. Notice of Termination (NOT) Q. BMPs Selected for the Project R. Sampling Activity Log and Chain of Custody Form S. Construction Material and Pollutant Testing Guidance Table Non-Visible Pollutants T. Discharge Reporting Log U. Subcontractor Notification Letter and Log Lawrence & Associates

9 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 1-1 SECTION 1 - INTRODUCTION Section 1 - Introduction 1-1. General This Storm Water Pollution Prevention Plan (SWPPP) is for construction of the Summers Lane Reservoir, and associated work (Project). The SWPPP is for work related to site preparation, construction, erosion control, and associated improvements for the Project. This SWPPP has been prepared in accordance with the requirements of the National Pollution Discharge Elimination System (NPDES) General Permit for Storm Water Discharges Associated with Construction Activities State Water Resources Control Board Order DWQ (NPDES No. CAS000002), hereinafter referred to as General Order. This SWPPP is intended for use by Contractors performing construction activities on the project until such time as permanent erosion control and/or landscaping are established to the degree required by the General Order, and a Notice of Termination has been submitted to and approved by the State of California Regional Water Quality Control Board, North Coast Region (NCRWQCB). The preliminary project schedule assumes that work will be performed between May 1 and July 30, This SWPPP shall be maintained onsite during construction activities, beginning with mobilization and ending with termination of coverage. The SWPPP shall be provided to the NCRWQCB upon request Risk Level Attachment D presents the risk-level calculation for this project. Because the project is tributary to the Noyo River, which is a 303(d)-listed water body impaired by sediment with the designated beneficial uses of Spawn, Cold, and Migratory, the Receiving Water Risk Level is, by definition, high. Because the site is anticipated to produce a soil loss of approximately 17 tons/acre, the Sediment Risk is Medium. According to Table 7 of the General Order the project Risk Level is 2. This risk level is provided as a reference to guide the contractor to the level of effort required for compliance with this SWPPP Unique Site Features The Project Site is located within a limited area and is defined on three sides by a perimeter road Lawrence & Associates

10 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 1-2 SECTION 1 - INTRODUCTION Runoff generally will occur mainly to the north, toward Newman Gulch, and to a lesser degree to the west Project Schedule The Owner is now in the process of obtaining final approvals from regulatory agencies. Estimate Construction Start: May 1, 2016 Estimate Construction Finish: July 30, 2016 Mobilization of equipment and materials, beginning: May 1, 2016 Store temporary sediment control products, beginning: May 1, 2016 Implement temporary sediment control BMPs, as needed, beginning: May 1, 2016 Construct reservoir and pipeline, beginning: May 1, 2016 Implement final erosion control of substantially completed areas, by October 15, 2016 Rainy season begins: October 30, 2016 Once the final approvals are obtained, construction will commence on the project. This work involving improvements to drainage, reservoir construction, and sediment/erosion-control implementation will be completed before October 15, If completion is delayed, a winter work plan will be required from the contractor to amend this SWPPP Electronic Reporting A Notice of Intent (NOI) for coverage under that General Permit will be submitted via the State of California Storm Water Multiple Application and Report Tracking System (SMARTS) website prior to construction, by the owner or authorized representative. Once a site number has been assigned, this SWPPP will be uploaded to the site. Addenda and monitoring results will then be added to the website. Finally, the Notice of Termination (NOT) will be submitted electronically. All submissions to either website shall be accompanied by a signed approval by the Owner with an updated Owner s Certification form provided in the front of this SWPPP Contact Information/List of Responsible Parties The personnel assigned to this project are listed in the Contact List in the front of this SWPPP. If personnel change during the project, the list shall be revised and replaced Lawrence & Associates

11 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 1-3 SECTION 1 - INTRODUCTION Responsibilities of the SWPPP Preparer This SWPPP has been developed by a Qualified SWPPP Designer (QSD). The SWPPP preparer will be responsible for preparing amendments to this SWPPP, and responding to questions from the Storm Water Pollution Prevention Manager (SWPPM) regarding the intent of the SWPPP Responsibilities of the Storm Water Pollution Prevention Manager (SWPPM) The SWPPM will be an employee of the general contractor or contracted company, and shall have primary responsibility and significant authority for the implementation, maintenance, inspection and amendments to the approved SWPPP. The SWPPM must be a QSD or qualified SWPPP practitioner (QSP). In addition, the Owner s Representative (and a QSP) will provide periodic review of the contractor s erosion control activities. The SWPPM will be available at all times throughout the duration of the project. Duties of the SWPPM include, but are not limited to, the following: Ensuring full compliance with the SWPPP and the Permit. Implementing all elements of the SWPPP. Preparing supplemental Wintertime Operations Plans (WOP), if Project completion extends into the wet season. Implementation of prompt and effective erosion and sediment control measures. Implementing all non-storm water management, and materials and waste management activities such as monitoring discharges (dewatering, diversion devices), general site clean-up, vehicle and equipment cleaning, fueling and maintenance, spill control, ensuring that no materials other than storm water are discharged in quantities which will have an adverse effect on receiving waters or storm drain systems, etc. Pre-storm inspections for, and preparation of Rain Event Action Plans (REAPs). Storm-event inspections. Post-storm inspections. Routine inspections as specified in the project specifications or described in the SWPPP. Recommending scope of updates/amendments to the SWPPP, to the SWPPP preparer, as needed Lawrence & Associates

12 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 1-4 SECTION 1 - INTRODUCTION Preparing annual compliance certification for Owner s, or Owner s Authorized Representative, signature. Ensuring elimination of all unauthorized discharges. The SWPPM shall be assigned authority by the Contractor to mobilize crews in order to make immediate repairs to the control measures. Coordinate with the Contractor to assure all of the necessary corrections/repairs are made immediately, and that the project complies with the SWPPP, the Permit, and approved plans at all times. Submitting Notices of Discharge and reports of illicit Connections or illegal Discharges Lawrence & Associates

13 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 2-1 SECTION 2 AMENDMENTS AND ANNUAL CERTFICATION Section 2 - Amendments and Annual Certification 2-1. Annual Compliance Certification By July 1 of each year, the Owner shall complete an Annual Certification of Compliance stating compliance with the terms and conditions of the Permit and the SWPPP. The blank Annual Certification of Compliance Form is included in Attachment M. Completed Annual Certifications of Compliance and Approvals shall be placed in the front of this SWPPP SWPPP Amendments This SWPPP shall be amended: Whenever there is a change in construction or operations which may affect the discharge of pollutants to surface waters, groundwater(s), or a municipal separate storm sewer system (MS4), or If any condition of the Permit is violated or the general objective of reducing or eliminating pollutants in storm water discharges has not been achieved. If the NCRWQCB determines that a Permit violation has occurred, the SWPPP shall be amended and implemented within 14 calendar days after notification by the NCRWQCB. Annually, prior to the defined rainy season, and When deemed necessary by the Owner. The amendments for this SWPPP, along with the Owner s Certification and the Owner approval, shall be placed in the front of this SWPPP, or if of significant scope provided under a separate cover. Amendments will be listed in the Amendment Log in the beginning of this SWPPP. The following items will be included in each amendment: Party who requested the amendment. The location of proposed change. The reason for change. The original BMP proposed, if any. The new BMP proposed Lawrence & Associates

14 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 3-1 SECTION 3 REFERENCES Section 3 - References 3-1. References The following documents are made a part of this SWPPP by reference: State Water Resources Control Board (SWRCB) Order No DWQ, NPDES General Permit No. CAS000002, Waste Discharge Requirements (WDRs) for Discharges of Storm Water Runoff Associated with Construction Activity, and amendments. State Water Resources Control Board (SWRCB) Resolution No DWQ, National Pollutant Discharge Elimination System (NPDES) General Permit No. CAS000001, Waste Discharge Requirements (WDRs) for Discharges of Storm Water Runoff Associated with Industrial Activity. California Stormwater BMP Handbook - Construction, January California Stormwater Quality Association (CASQA) Construction Site Best Management Practices Manual, dated July Lawrence & Associates, February 2016, Design Report for Summers Lane Reservoir, Mendocino County, California Lawrence & Associates

15 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-1 SECTION 4 SWPPP Section 4 - SWPPP 4-1. Objectives This SWPPP has seven main objectives: Identify all pollutant sources, including sources of sediment that may affect the quality of storm water discharges associated with construction activity (storm water discharges) from the construction site. Identify non-storm water discharges (inspect at least quarterly) and describe means to eliminate them, provide collection, or control them. Identify, construct, implement in accordance with a time schedule, and maintain Best Management Practices (BMPs) to reduce or eliminate pollutants in storm water discharges and authorized non-storm water discharges from the construction site during construction. Describe design details and BMP controls for site run-on. Provide a maintenance schedule for BMPs installed during construction, and designed to reduce or eliminate pollutants after construction is completed (post-construction BMPs). Identify a sampling and analysis strategy and sampling schedule for construction-activity discharges which discharge directly into water bodies listed on Attachment 3 of the Permit (Clean Water Act Section 303(d) [303(d)1 Water Bodies listed for Sedimentation). For all construction activity, identify a sampling and analysis strategy and sampling schedule for discharges that have been discovered through visual monitoring to be potentially contaminated by pollutants not visually detectable in the runoff. This SWPPP conforms to the required elements of the General Permit No. CAS issued by the State of California, SWRCB. This SWPPP will be modified and amended to reflect any amendments to the Permit or any changes in construction or operations that may affect the discharge of pollutants from the construction site to surface waters, groundwater, or the municipal separate storm sewer system (MS4). The SWPPP will also be amended if it is in Lawrence & Associates

16 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-2 SECTION 4 SWPPP violation of any condition of the Permit or has not achieved the general objective of reducing pollutants in storm water discharges. The SWPPP shall be readily available on-site for the duration of the project General Implementation of Erosion Control BMPs BMPs will be deployed in a sequence to follow the progress of grading and construction. As the locations of soil disturbance change, erosion and sedimentation controls will be adjusted accordingly to control storm water runoff at the downgrade perimeter and drain inlets. BMPs will be mobilized as follows: Year-round: o o The Storm Water Pollution Prevention Manager (SWPPM) will monitor weather using National Weather Service reports to track conditions and alert crews to the potential onset of rainfall events. Disturbed soil areas will be stabilized with temporary erosion control or with permanent erosion control as soon as possible after grading or construction is complete. During the rainy season, when applicable (the Project s grading permit will limit work to the dry season only): o o o o The Contractor shall prepare a WOP prior to commencing land disturbance activities and update the WOP as the work area changes over the rainy season. Disturbed areas will be stabilized with temporary or permanent erosion control before rain events. Disturbed areas that are substantially complete will be stabilized with permanent erosion control (soil stabilization) and vegetation (if within seeding window for seed establishment). Prior to forecast storm events, temporary erosion control BMPs will be deployed and inspected. During the non-rainy season: o The erosion and sediment control materials shall be available for installation in Lawrence & Associates

17 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-3 SECTION 4 SWPPP the event of rain events during mid-summer. During the spring or fall, the Contractor shall provide a combination of pre-deployed erosion and sediment control features and materials ready for deployment. The construction schedule will be arranged as much as practicable to leave existing vegetation undisturbed until immediately prior to grading Vicinity and Site Maps The construction project vicinity map showing the project location, surface water boundaries, geographic features, construction site perimeter, and general topography, is located in Attachments A and B. Site maps are provided in Attachment B for the SWPPM use. Copies of the overall site maps (Drawings B-1 through B-3) are provided. The SWPPM may request additional copies and/or maps of different scale, if needed Pollutant Source Identification The project consists of several types of construction practices that have the potential to generate their own pollutants. These include the following: Grubbing: Dust, sediment, lubricants, and fuel from equipment. Culvert installation: Dust, lubricants, and fuel from equipment. Grading soil surfaces: Dust, sediment, lubricants, and fuel. Installation of concrete structures: Concrete cleanout water, release agents, and curing compounds. Loading, transport, and placement of borrow soil: Dust and fuel from equipment. BMP materials: Liquid copolymer tackifier (if used). General site use: Vehicle fluids including oil, grease, petroleum, and coolants. The SWPPM will be responsible for identifying these activities, if applicable, and showing them on the current site map. The following is a list of materials that could potentially pollute storm water at construction sites. It will be the responsibility of the SWPPM to identify these items when they enter the facility and ensure that they are controlled and/or contained so that they do not enter the storm water. Drawings B-1 through B-3 in Attachment B can be used for the purpose of adding these items while they are present on site and removing them when they are no longer in use Lawrence & Associates

18 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-4 Sediment. Fuels. Lubricants. 4-5 Erosion Control BMPs General Practices SECTION 4 SWPPP Erosion control, also referred to as soil stabilization, consists of source-control measures that prevent soil particles from detaching and becoming transported in storm water runoff. Erosioncontrol BMPs protect the soil surface by covering and/or binding soil particles. This project will incorporate erosion control measures required by the contract documents, and other measures selected by the Contractor, SWPPM, or Owner. The Contractor will implement the following practices for effective temporary and final erosion control during construction: 1. Preserve existing vegetation where required and when feasible. 2. Use project scheduling and/or phasing to minimize the amount of time between clearing and completion of construction, thereby minimizing the amount of disturbed area at any given time. 3. Provide rumble strips, rocked aprons, or other means to prevent tracking of mud and dirt onto site roads. Apply sweeping to collect mud and dirt form site roads as necessary. 4. Apply temporary erosion control to remaining active and non-active areas as required by the California Storm Water BMPs Handbook - Construction, and the contract documents. Reapply as necessary to maintain effectiveness. 5. Implement temporary erosion control measures at regular intervals throughout the defined rainy season to achieve and maintain the contractor s disturbed soil area requirements. Implement erosion control prior to the defined rainy season. 6. Stabilize non-active areas as soon as feasible after the cessation of construction activities. 7. Control erosion in concentrated flow paths by applying erosion control fiber rolls (straw wattles), seeding, and mulching. 8. Apply seed and mulch to areas deemed substantially complete by the Owner during the defined rainy season. 9. At completion of construction, apply permanent erosion control to all remaining disturbed soil areas Lawrence & Associates

19 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-5 SECTION 4 SWPPP Sufficient erosion control materials will be maintained on-site to allow implementation in conformance with Permit requirements and described in this SWPPP. This includes implementation requirements for active areas and non-active areas that require deployment before the onset of rain. The Water Pollution Control Drawings (WPCDs) in Attachment B show the erosion control methods that will be implemented at the conclusion of construction. The methods cited below are from the California Storm Water Quality Association (CASQA) Construction Site Best Management Practices Manual. A copy of the manual needs to be procured by the Contractor, if needed. The BMP Consideration Checklist in Attachment C indicates the BMPs that will be implemented to control erosion on the construction site. Their specific applications are described below Erosion Control During Non-Rainy Construction Season During the summer construction season, work may include clearing, grubbing, grading and earthwork. At any period during the summer construction season, the area of open ground will vary significantly and cannot be predicted in this SWPPP. Therefore, anytime there is a predicted likely precipitation event the SWPPM/QSP shall prepare a Rain Event Action Plan (REAP), that may recommend temporary erosion control for areas that have been disturbed but have not been graveled or paved. A likely precipitation event is defined as a weather pattern that is forecast to have a 50% or greater probability of producing measurable precipitation in the project area (see Temporary Erosion Control BMP s may include the following: CASQA Method EC-6, Straw Mulch Temporary straw mulch will be applied to all inactive disturbed areas. Straw mulch will be re-applied as needed to maintain effectiveness, but no less than two tons per acre. The location of application cannot be predicted until the beginning of the winter season, and placed on bare soil within the operating areas shown on Drawings B-1 through B-3 in Attachment B. Covers - Tarps, plastic sheeting, or other impermeable surface. Containment In lieu of Erosion Control, containment of all storm water runoff from the disturbed area and later reuse for construction water Lawrence & Associates

20 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-6 SECTION 4 SWPPP Erosion Control During Winter Construction This project is scheduled to be completed prior to the beginning of the rainy season, and construction is limited to the dry season by the grading permit. However, if construction does extend into the wet season, the Contractor shall prepare a Winter Operations Plan (WOP). The WOP shall be updated whenever the limits of work change or other changes to the work occur. The WOP shall consist of a site map showing the locations of temporary sediment and erosion control methods, including a key describing each application. A copy of each WOP shall be provided to the CQA Monitor for the construction project. The methods shall be implemented prior to construction in areas described in the WOP. Areas that will require temporary winter erosion control will use the following methods: CASQA Method EC-6, Straw Mulch Temporary straw mulch will be applied to all inactive disturbed areas to which gravel has not been applied. Temporary straw mulch shall be placed in active areas as part of a REAP. Straw mulch will be re-applied as needed to maintain effectiveness, but no less than two tons per acre. The location of application cannot be predicted until the beginning of the winter season, and placed on bare soil within the areas shown in the Contractor s WOP. CASQA Method EC-10, Velocity Dissipation Devices Outlet protection (rock armor, erosion control blankets, etc.) will be used at the locations on silt fences where water flows around the end of the roll, to prevent scoring. Other methods as proposed by the Contractor Post-Construction Erosion Control The following methods will be used in portions of the site where construction is complete and ready for final erosion control. Because most of the project area will be covered with gravel and high density polyethylene (HDPE) or relatively undisturbed, the areas that will receive permanent erosion control are limited primarily to the periphery of the project as shown on the WPCDs in Attachment B. CASQA Method EC-1, Scheduling The project is scheduled to be completed before the onset of the rainy season. 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 Lawrence & Associates

21 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-7 SECTION 4 SWPPP 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. CASQA Method EC-2, Preservation of Existing Vegetation Existing vegetation will be preserved as much as possible. CASQA Method EC-4, Hydroseeding Multistep hydroseeding will be applied to inactive disturbed areas that are deemed substantially complete. CASQA Method EC-7, Geotextile Matting The Contractor shall apply jute netting to slopes steeper than 4:1. CASQA Method EC-8, Wood Mulching The Contractor may use wood mulch along the edges of roads as a landscaping application. CASQA Method EC-10 Velocity Dissipation Devices Outlet protection (rock armor, erosion control blankets, etc.) will be used at discharge locations to prevent scour and reduce the velocity and energy of flows. All of the discharge locations will be into storm water infiltration swales or vegetated swales, and the rock protection will be installed as part of landscaping. Erosion control is considered a primary line of defense to protect storm water runoff and is preferred, where feasible, over sediment control Sediment Control General Sediment controls are structural measures that are intended to complement and enhance the erosion control measures and reduce sediment discharges from construction areas. Sediment controls are designed to intercept and filter out soil particles that have been detached and transported by the force of water. This project will incorporate sediment control measures required by the contract documents and other measures selected by the Contractor. For winter construction, the Contractor will be required to install linear sediment controls around the perimeter of the unfinished work. Linear sediment controls consist of sediment control devices that are used in a line to intercept sediment and reduce the length of overland flow (silt fencing, fiber rolls [straw wattles], etc.). Sufficient quantities of temporary sediment control materials will be maintained on-site Lawrence & Associates

22 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-8 SECTION 4 SWPPP throughout the duration of the project. This allows for implementation of temporary sediment controls in the event of predicted rain, and for rapid response to failures or emergencies, in conformance with other Permit requirements and as described in this SWPPP. This includes implementation requirements for active areas and non-active areas before the onset of rain. The BMP Consideration Checklist in Attachment C indicates the BMPs that will be implemented to control sediment on the construction site. The following narrative descriptions highlight pertinent BMP components. The full standard should be followed for each BMP selected. Regardless of the time of year, the following general practices will be performed to control sediment: CASQA Method SE-7, Street Sweeping and Vacuuming The Contractor shall inspect all immediate access roads daily. The Contractor shall remove any loose sediment or other construction related materials that are deposited on the asphalt or concrete paved roads by vacuuming or sweeping on a daily basis (when necessary) and prior to any rain event. Mud shall be removed from graveled roads as needed to prevent excessive tracking an where directed by the Owner, place and compact additional Caltrans Class 2 road base. In addition, the contractor shall practice tracking and dust control as described later in this SWPPP Sediment Control During Summer Construction Season During the summer season, temporary sediment controls will be implemented at the downslope drainage perimeter of disturbed soil areas, at the toe of slopes, at storm drain inlets, and at outfall areas at all times: SE-5 Fiber Rolls Fiber rolls (straw wattles) will be deployed at the toe of disturbed slopes greater than, or equal to, 4-to-1 (H to V) when not being actively graded for more than 30 days or if a REAP must be implemented. The Contractor shall use fiber rolls along the toe of the slope. Because of the limited distance between the site and edge of work area, there are few locations where fiber rolls can be used as a linear control. Fiber rolls will be used along the edges of gravel areas where they meet paved roads (if present for this project) to prevent running onto paved areas. Fiber rolls may also be used for inlet protection as described below Lawrence & Associates

23 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-9 SECTION 4 SWPPP SE-1 Silt Fences Silt fences will be placed where designated on Drawings B-1 through B-3 in Attachment B Sediment Control During Winter Construction The Contractor shall include temporary sediment controls in their Winter Operations Plan (WOP). Temporary sediment controls will be implemented at the downslope drainage perimeter of disturbed soil areas, at the toe of slopes, at storm drain inlets, and at outfall areas at all times during the winter construction period: SE-5 Fiber Rolls Fiber rolls will be deployed on disturbed slopes greater than, or equal to, 4-to-1 (H to V). The Contractor shall use fiber rolls along the toe of the slope, face of the slope, and at the grade breaks of exposed slopes to comply with sheet flow lengths in accordance with Table 4-1. Because of the limited distance between the site and edge of work area, there are few locations where fiber rolls can be used as a linear control. Fiber rolls will be used along the edges of gravel areas to prevent running onto paved areas. Fiber rolls may also be used for inlet protection as described below. Table 4-1. Critical Slope/Sheet Flow Length Combinations Slope Percentage Sheet Flow Length Not To Exceed 0-25% 20 Feet 25-50% 15 Feet > 50% 10 Feet SE-10 Storm Drain Inlet Protection Storm drain inlets within and downgradient of disturbed soil areas will be protected at all times by inlet protection. SE-1 Silt Fences Silt fences will be placed where designated on Drawings B-1 through B-6 in Attachment B. Other methods proposed by the Contractor Tracking Control The following narrative descriptions highlight pertinent BMP components. The full standard should be followed for each BMP selected Lawrence & Associates

24 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-10 SECTION 4 SWPPP CASQA Method TC-1, Stabilized Construction Entrance/Exit It is understood that the work may be performed in phases and that the construction entrance may be moved as the work progresses. Considerable mud can be generated, therefore, a stabilized construction entrance will be required. The Contractor shall fit the method of tracking control to the work being performed. In some locations a gravel strip will be suitable. In some locations where used, a portable rumble strip may be required on adjacent pavement. Stabilization material will be 3- to 6-inch aggregate placed on 4 oz. or heavier woven geotextile. A regular maintenance program will be conducted to replace sediment-clogged stabilization material with new stabilization material. CASQA Method TC-2, Stabilized Construction Roadway (Haul Path) If a temporary construction access road is used, it will be stabilized to minimize tracking. The roadway will also be maintained to prevent erosion and control dust. When no longer needed, the road will be stabilized by seeding and mulching. The construction roadway through the site will also be designated and stabilized to prevent erosion and to control tracking of mud and soil material onto adjacent roads. The roadway will be clearly marked for limited speed to control dust. Refer to the WPCDs for entrance/exit and construction roadway locations Wind Erosion Control Construction water will be applied to disturbed soil areas of the project site to control dust and maintain optimum moisture levels for compaction. The water will be applied using water trucks. As shown on the project schedule, project soils will be disturbed and exposed from approximately May 1 through July 30. Water applications will be concentrated during the summer and early fall months (CASQA Method WE-1, Wind Erosion Control) Non-Storm Water Control An inventory of construction activities and potential non-storm water discharges is provided below. The BMP Consideration Checklist in Attachment C and the following list indicates the BMPs that have been selected to control non-storm water pollution on the construction site. Implementation and locations of some non-storm water control BMPs are shown on the WPCDs in Attachment B. A narrative description of each BMP follows Lawrence & Associates

25 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-11 SECTION 4 SWPPP CASQA Method NS-1, Water Conservation Practices Water equipment will be kept in good working condition. Leaks will be contained immediately and repaired as soon as practicable. Vehicles and equipment will not be washed on site. Water will not be used to clean construction areas. CASQA Method 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 Resident Engineer and Project Manager at the time of the discovery. CASQA Method NS-8, Vehicle and Equipment Cleaning Vehicles and equipment will be cleaned off-site, as needed. Rinse water, wash waters, or wash materials will not be disposed on any impervious or pervious site surfaces, nor will they be disposed into the storm-drain system or watercourses. CASQA Method 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. Off-road equipment, such as graders, excavators, backhoes, etc., will be fueled in a location that is accessible to a service rig. The operator of the service rig will be responsible for visually inspecting for spills or leaks. The service rig operator shall have a spill kit available on his or her service rig or the Contractor will have one available on site in a location known to the operators and service rig attendant. The location of the spill kit shall be shown on the Contractor s current site map. 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 ground, storm drains, or surface waters. Fluid and oil leaks will be repaired immediately. If portable fueling tanks are provided, they will be required to be in secondary containment. CASQA Method NS-10, Vehicle and Equipment Maintenance Only minor maintenance, such as adding oil, fluids or lubricants, typically associated with daily fueling, will occur at the project site. For other vehicle maintenance, equipment will be Lawrence & Associates

26 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-12 SECTION 4 SWPPP taken off-site for repair. In some cases, a breakdown renders equipment unmovable, and maintenance must be performed on site. For these unexpected circumstances, the Contractor will place drip pans or sheets beneath the equipment before performing repair activities. 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. Drip pans or absorbent pads will be used for all vehicle and equipment maintenance activities that involve grease, oil, solvents, or other vehicle fluids Good Site Management Housekeeping Pollution Control An inventory of construction activities, materials, and wastes is provided in Section 4-4. The BMP Consideration Checklist in Attachment C and the following list specify the BMPs that have been selected to control construction site wastes and materials. Implementation and locations of some materials handling and waste management BMPs are shown on the Water WPCDs in Attachment B. A narrative description of each BMP follows. The following narrative descriptions highlight pertinent BMP components. The full standard should be followed for each BMP selected. CASQA Method WM-1 Material Delivery and Storage A staging area will be designated at the project site by the Contractor s Project Manager and approved by the Owner. 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.). Very large items, such as light standards, framing materials, and stockpiled lumber, will Lawrence & Associates

27 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-13 SECTION 4 SWPPP be stored in the open in the general storage area. Such materials will be elevated with wood blocks to minimize contact with run-on. Spill clean-up materials, material safety data sheets, a material inventory, and emergency contact numbers will be maintained. CASQA Method WM-2, Material Use An ample supply of clean-up material will be kept near use areas. CASQA Method WM-3, Stockpile Management Any construction-project related soil stockpiles (excluding the Stockpiles used to place excavated soil that have drainage features incorporated into their design) will be located away from concentrated flows of storm water, drainage courses, and inlets. Stockpile Management will be implemented to reduce or eliminate pollution of storm water from stockpiles of soil. All stockpiles placed during the winter operating period and during periods of anticipated rain during the summer shall be surrounded by a ring of fiber rolls (Method SE-5) or a sandbag barrier (Method SE-8). Any stockpiled material that is unstable will be sprayed with water as needed for dust control. CASQA Method 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. The CQA Monitor, the Engineer, and the Owner will be immediately notified of any spills and leaks. Spill and leak clean-up materials will be located near storage, unloading, and use areas. Spill Prevention and Control will be implemented to contain and clean-up spills and prevent material discharges to the storm drain system. Spill prevention is also discussed above in Method Material Delivery and Storage, and above in the following waste management and equipment maintenance sections. CASQA Method WM-5, Solid Waste Management Solid wastes (miscellaneous packaging, food wastes, and other nonhazardous solid wastes potentially generated by the Contractor, if found) will be loaded directly into trucks and/or waste disposal containers Lawrence & Associates

28 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-14 SECTION 4 SWPPP for on-site landfill 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 storm-water drainage system or receiving water. Construction 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. CASQA Method WM-6, Hazardous Waste Management Spill Prevention and Control will be implemented to minimize storm water contact with waste materials and prevent waste discharges. Hazardous wastes will be stored in the shipping containers or covered containment area discussed above for materials storage. Hazardous wastes will be placed in appropriately and clearly marked containers and segregated from other nonhazardous waste materials. CASQA Method WM-7, Contaminated Soil Management If contaminated soil is encountered, such soil will be handled, treated, stored, and disposed of per applicable laws and regulations. When contaminated soils are encountered, Environmental Health will be notified, the contaminated soils will be contained, covered if stockpiled, and disposed of per WM-7, Contaminated Soil Management, and the contract documents. Employees will be instructed to recognize evidence of contaminated soil, such as buried debris, discolored soil, and unusual odors Cost Breakdown for Water Pollution Control A breakdown itemizing the unit quantities for post-construction erosion control has been developed for this project and is included in Attachment O. The breakdown reflects the items of work, quantities and estimated costs (to be determined during final bidding) for final erosion and sediment control BMPs shown in the SWPPP Construction BMP Maintenance, Inspection, and Repair Inspections will be conducted by or under the supervision of the Contractor s QSP as follows: Weekly. Prior to a forecast storm that requires a REAP. After a rain event that causes runoff from the construction site Lawrence & Associates

29 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-15 SECTION 4 SWPPP At 24-hour intervals during extended rain events. At any other time(s) or intervals of time specified in the contract documents. Completed inspection checklists will be kept with the SWPPP. A tracking or follow-up procedure shall follow any inspection that identifies deficiencies in BMPs. If deficiencies are identified during BMP inspections, repair or design changes to the BMPs must be initiated within 72 hours of identification and need to be completed as soon as possible. A program for Maintenance, Inspection, and Repair of BMPs is shown in Attachment G Rain Event Action Plans Rain Event Action Plans (REAPs) developed by the Contractor s QSP are required for this project for each phase of construction. A REAP template is included in Attachment J of this SWPPP; the Qualified SWPPP Practitioner will have to customize the template for each rain event. Completed REAP s must be maintained on site in Attachment J. The Qualified SWPPP Practitioner must develop the REAP 48-hours in advance of any precipitation event forecast to have a 50% or greater chance of producing precipitation in the project area. The REAP must be on site and be implemented 24 hours in advance of the predicted precipitation event. The Qualified SWPPP Practitioner will include a printed copy of precipitation forecast information with the REAP. The General Permit requires that the Contractor only use weather forecasts from the National Oceanographic and Atmospheric Administration (NOAA). These forecasts can be obtained at The REAP will be designed by the Contractor s QSP to protect all exposed portions of project sites and to ensure that the discharger has adequate materials, staff, and time to implement erosion and sediment control measures that are intended to reduce the amount of sediment and other pollutants that could be generated during the rain event. At a minimum the REAP must include the following site and specific information: 1. Site Address. 2. Calculated Risk Level (2). 3. Site storm-water manager information including the name, company, and 24-hour emergency telephone number Lawrence & Associates

30 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-16 SECTION 4 SWPPP 4. Erosion and Sediment Control provider information including the name, company, and 24-hour emergency telephone number. 5. Storm-water Sampling Agent information including the name, company, and 24-hour emergency telephone number. 6. Activities associated with each construction phase. 7. Trades active on the construction site during the rain event. 8. Trade contractor information. 9. Suggested actions. The QSP shall develop additional REAPs for project sites where construction activities are indefinitely halted or postponed (Inactive Construction). At a minimum, Inactive Construction REAPs must include: 1. Site Address. 2. Calculated Risk Level (2). 3. Site storm water manager information including the name, company, and 24-hour emergency telephone number. 4. Erosion and Sediment Control provider information including the name, company, and 24-hour emergency telephone number. 5. Storm water Sampling Agent information including the name, company, and 24-hour emergency telephone number. 6. Trades active on the construction site during the rain event. 7. Trade contractor information. 8. Suggested actions Post-Construction Storm Water Management Post-Construction Control Practices If an NOI is required for this project, the Contractor will be responsible for implementing post construction BMPS (inspection, long-term maintenance, etc.). Post-construction is defined as the period of time after construction has been completed and the State has approved the NOT (if required). The General Permit requires that all dischargers implement BMPs to reduce pollutants in storm water discharges that are reasonably foreseeable after all construction phases have been completed at the site. The Owner has retained a qualified professional to incorporated design source and treatment controls into the plans and specifications for the construction project for Lawrence & Associates

31 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-17 SECTION 4 SWPPP which this SWPPP is applicable. These item will be installed during the construction process Operation/Maintenance After Project Completion The post-construction BMPs that are described above will be installed and maintained by a contractor and paid for under the unit prices establish in the construction contract or on a time and expense not to exceed basis based on a proposal provided by the contractor Training The Contractor s Storm Water Pollution Prevention Manager (SWPPM) shall be experienced in construction and is, or will be, a certified QSP before the project begins. Other employees shall be trained by the Contractor s SWPPM and/or possess QSP certification. It will be the responsibility of the SWPPM to provide training to other employees that will implement erosion control, sediment control, and other practices described in this SWPPP. The SWPPPM will provide tailgate training and document attendance using the form in Attachment K. Informal training will include tailgate site briefings to be conducted bi-weekly and will address the following topics: Erosion Control BMPs. Sediment Control BMPs. Non-Storm Water BMPs. Waste Management and Materials Pollution Control BMPs. Emergency Procedures specific to the construction site storm water management List of Subcontractors All contractors and subcontractors will be notified of the requirement for storm water management measures during the project. A list of contractors will be maintained and included in the SWPPP. If subcontractors change during the project, the list will be updated accordingly. The subcontractor notification letter and log is included in the SWPPP as Attachment U Other Plans/Permits Attachment N includes relevant portions of other local, state, and federal plans and permits. Following is a list of the plans/permits included or referenced in Attachment N of this SWPPP Lawrence & Associates

32 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-18 SECTION 4 SWPPP State Water Resources Control Board (SWRCB) Resolution No DWQ, National Pollutant Discharge Elimination System (NPDES) General Permit No. CAS000002, Waste Discharge Requirements (WDRs) for Discharges of Storm Water Runoff Associated with Construction Activity, September 2009, and amendments. State Water Resources Control Board (SWRCB) Resolution No DWQ, National Pollutant Discharge Elimination System (NPDES) General Permit No. CAS000001, Waste Discharge Requirements (WDRs) for Discharges of Storm Water Runoff Associated with Industrial Activity. City of Fort Bragg Grading Permit County of Mendocino Encroachment Permit California Department of Fish and Game Code Section 1601 Streambed Alteration Agreement (not applicable to this Project). Clean Water Act Section 401 Water Quality Certification issued by the State of California as processed through the NCRWQCB (not applicable to this Project). U.S. Army Corps of Engineers Clean Water Act Section 404 Nationwide Permit (not applicable to this Project) Termination of Permit Within 90 days of when construction is complete or ownership has been transferred, the discharger shall electronically file a NOT, a final site map, and photos through the State Water Boards SMARTS system. Filing a NOT certifies that all General Permit requirements have been met. The NCRWQCB will consider a construction site complete only when all portions of the site have been transferred to a new owner, or all of the following conditions have been met: For purposes of final stabilization, the site will not pose any additional sediment discharge risk than it did prior to the commencement of construction activity; There is no potential for construction-related storm water pollutants to be discharged into site runoff; Final stabilization has been reached; Construction materials and wastes have been disposed of properly; Lawrence & Associates

33 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 4-19 SECTION 4 SWPPP Compliance with the Post-Construction Standards in Section XIII of this General Permit has been demonstrated; Post-construction storm water management measures have been installed and a long-term maintenance plan has been established; and All construction-related equipment, materials and any temporary BMPs no longer needed are removed from the site. The discharger (Owner) shall certify that final stabilization conditions are satisfied in their NOT. Failure to certify shall result in continuation of permit coverage and annual billing. The NOT must demonstrate through photos, Revised Universal Soil Loss Equation (RUSLE) or RUSLE2, or results of testing and analysis that the site meets all of the conditions above (Section II.D.1 of the General Order) and the final stabilization condition (Section II.D.1.a of the General Order) is attained by one of the following methods: a. 70% final cover method, no computational proof required OR: b. RUSLE or RUSLE2 method, computational proof required OR: c. Custom method, the discharger shall demonstrate in some other manner than a or b, above, that the site complies with the final stabilization requirement in Section II.D.1.a of the General Order Lawrence & Associates

34 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-1 SECTION 5 CONSTRUCTION SITE MONITORING PLAN Section 5 Construction Site Monitoring Plan (CSMP) 5-1. General The construction-site monitoring described below would be performed only if an NOI is required for this project. If an NOI is not required all sampling and monitoring will be performed in accordance with the General Industrial SWPPP and the WDRs for the site by the Owner. This project falls under a Risk-Level 2, Traditional (not a linear underground project [LUP]). Monitoring for a Level 2 project is described in Attachment D of the General Order. The General Permit requires visual monitoring at all sites, and effluent water quality monitoring at all Risk Level 2 & 3 sites. It requires receiving water monitoring at some Risk Level 3 sites (those with Active Treatment Systems [ATS] that exceed Numeric Effluent Limits [NELs]). All sites are required to submit annual reports containing various types of information, depending on the site characteristics and events. Table 5-1 shows a summary of the monitoring and reporting requirements. The requirement for this SWPPP is highlighted in bold text. Risk Level 1 For all risk levels: Non-storm water, pre-rain and post rain Table 5-1. Required Monitoring for Risk Levels Visual Non-Visible Effluent Receiving Water As Needed for All Risk Levels Where applicable Not required 2 Same Same ph, Turbidity Not required 3 Same Same ph, turbidity (If Receiving Water Monitoring Trigger exceeded) ph, turbidity, and SSC. Bioassessment for sites larger than 30 acres. Table 5-2. Required Monitoring Elements for Risk Levels Risk Level Frequency Effluent Monitoring 1 When applicable Non-visible pollutant parameters (if applicable). 2 Minimum of 3 samples per day during qualifying rain event, characterizing discharges associated with construction activity for the entire project. 3 Minimum of 3 samples per day during qualifying rain event, characterizing discharge associated with construction activity from the entire project disturbed area. ph, turbidity, and non-visible pollutant parameters, if applicable. ph, turbidity, and non-visible pollutant parameters (if applicable) Lawrence & Associates

35 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-2 SECTION 5 CONSTRUCTION SITE MONITORING PLAN For Risk Level 2 projects, the General Order requires that the Construction Site Monitoring Plan address the following objectives: To demonstrate that the site is in compliance with the Discharge Prohibitions and applicable Numeric Action Levels (NALs) of the General Permit. To determine whether non-visible pollutants are present at the construction site and are causing or contributing to exceedances of water quality objectives. To determine whether immediate corrective actions, additional BMP implementation, or SWPPP revisions are necessary to reduce pollutants in storm water discharges and authorized non-storm water discharges. To determine whether BMPs included in the SWPPP/REAP are effective in preventing or reducing pollutants in storm water discharges and authorized non-storm water discharges. If an NOI is required, the Contractor will perform site monitoring through the construction period until the Notice of Termination is submitted Local Rain Gauge Station The Contractor shall utilize a local rain gauge station to obtain and record daily rainfall. A rain gauge can be set up on-site or the station recommended to obtain the data is located at the little River Airport weather station and can be found on the following webpage; gauges shall have a large opening to optimize accuracy. The SWPPM or assigned employee shall record rainfall daily and enter the date, time, and rainfall since the last measurement in a log to be kept with this SWPPP. The rainfall shall be measured at approximately the same time each day. For weekends or non-working days, note the rainfall total on the day when work resumes. For days with no rainfall, note dry in the day s entry. A qualifying rain event is defined as ½ inch of rain at the time of surface-water discharge from the site. We understand this to be ½ inch of rain in any given storm, not in a 24-hour period. In conformance with the General Permit, a minimum of 48 hours of dry weather (no rainfall) will be used to distinguish between separate rain events Lawrence & Associates

36 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-3 SECTION 5 CONSTRUCTION SITE MONITORING PLAN 5-3. Visual Monitoring Storm-Related Visual Monitoring The visual monitoring described below will only be required if an NOI is required. If an NOI is not required, visual monitoring will be performed by the Owner as required by the WDRs. The General Permit requires visual monitoring at all sites, and effluent water quality at all Risk Level 2 & 3 sites. Monitoring will be performed by the Contractor through the construction period, and the Owner s personnel will continue site monitoring after the construction period is completed, as needed, until the Notice of Termination is submitted. A summary of the monitoring and reporting requirements is found in Table 5-1. The following requirements apply to Risk Level 2 sites: Risk Level 2 dischargers shall visually observe (inspect) storm water discharges at all discharge locations within two business days (48 hours) after each qualifying rain event. Risk Level 2 dischargers shall visually observe (inspect) the discharge of stored or contained storm water that is derived from and discharged subsequent to a qualifying rain event producing precipitation of ½ inch or more at the time of discharge. Stored or contained storm water expected to discharge after operating hours due to anticipated precipitation, shall be observed prior to the discharge during operating hours. Risk Level 2 dischargers shall conduct visual observations (inspections) during business hours only. Risk Level 2 dischargers shall record the time, date, and rain gauge reading of all qualifying rain events. Within 2 business days (48 hours) prior to each qualifying rain event, Risk Level 2 dischargers shall visually observe (inspect): o all storm water drainage areas to identify any spills, leaks, or uncontrolled pollutant sources. If needed, the discharger shall implement appropriate corrective actions and BMPs to identify whether they have been properly Lawrence & Associates

37 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-4 SECTION 5 CONSTRUCTION SITE MONITORING PLAN implemented in accordance with the SWPPP/REAP. If needed, the discharger shall implement appropriate corrective actions. o any storm water storage and containment areas to detect leaks and ensure maintenance of adequate freeboard. For the visual observations (inspections) described above, Risk Level 2 dischargers shall observe the presence or absence of floating and suspended materials, a sheen on the surface, discolorations, turbidity, odors, and source(s) of any observed pollutants. Within two business days (48 hours) after each qualifying rain event, Risk Level 2 dischargers shall conduct post rain event visual observations (inspections) to (1) identify whether BMPs were adequately designed, implemented, and effective, and (2) identify additional BMPs and revise the SWPPP accordingly. Level 2 dischargers are not required to physically collect samples or conduct visual observation (inspections) under the following conditions: o During dangerous weather conditions such as flooding and electrical storms. o Outside of scheduled site business hours. If no required samples or visual observation (inspections) are collected due to these exceptions, Risk Level 2 dischargers shall include an explanation in their SWPPP and in the Annual Report documenting why the sampling or visual observation (inspections) were not conducted. Dischargers must maintain on-site records of all visual observations, personnel performing the observations, observation dates, weather conditions, locations observed, and corrective actions taken in response to the observations. Site inspections conducted for monitoring purposes will be performed using the inspection checklist shown in Attachment I Quarterly Non-Storm Water Visible Pollutant Inspection All dischargers are required to conduct quarterly, non-storm water visual inspections in each of the following periods: January-March, April-June, July-September, and October-December, as needed, pending construction period and post-construction revegetation. Inspections will be performed by the Contractor through the construction period, and the Owner s personnel will Lawrence & Associates

38 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-5 SECTION 5 CONSTRUCTION SITE MONITORING PLAN continue quarterly inspections after the construction period is completed, as needed, until the Notice of Termination is submitted. For these inspections, the discharger must visually observe each drainage area for the presence of (or indications of prior) unauthorized and authorized nonstorm water discharges and their sources. Visual observation (inspections) are only required during daylight hours (sunrise to sunset). Risk Level 2 dischargers shall ensure that visual observations (inspections) document the presence or evidence of any non-storm water discharge (authorized or unauthorized), pollutant characteristics (floating and suspended material, sheen, discoloration, turbidity, odor, etc.), and source. Risk Level 2 dischargers shall maintain on-site records indicating the personnel performing the visual observation (inspections), the dates and approximate time each drainage area and non-storm water discharge was observed, and the response taken to eliminate unauthorized non-storm water discharges and to reduce or prevent pollutants from contacting non-storm water discharges Water Quality Monitoring Receiving Water Monitoring Receiving water monitoring is required for Risk Level 3 projects (Table 5-1), not this Project which is Risk Level 2. Receiving water monitoring would involve the monitoring of Newman Gulch, located downstream of the Project site, Newman Gulch is tributary to the Noyo River. Receiving water monitoring is only required if the average turbidity value of Project site storm water discharge (effluent) exceeds 500 Nephelometric Turbidity Units (NTU) or ph is less than 6 or greater than 9. Then, receiving water needs to be monitored for ph, turbidity, and suspended sediment concentration (SSC). Bioassessment monitoring of receiving water is not required for this Risk 2 Level Project Storm-Event Monitoring The General Order requires that all Risk Level 2 and 3 dischargers must perform sampling and analysis of effluent discharges to characterize discharges associated with construction activity from the entire area disturbed by the project. Monitoring will be performed by the Contractor through the construction period, and by the Owner s (discharger s) personnel after the construction period is completed, as needed, until the Notice of Termination is submitted. Dischargers must collect samples of stored or contained storm water that is discharged Lawrence & Associates

39 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-6 SECTION 5 CONSTRUCTION SITE MONITORING PLAN subsequent to a storm event producing precipitation of ½ inch or more at the time of discharge. This project is categorized as a Risk Level 2 and sampling is required. Risk Level 2 dischargers shall maintain on-site records of all visual observations (inspections), personnel performing the observations, observation dates, weather conditions, locations observed, and corrective actions taken in response to the observations. Risk Level 2 dischargers shall collect storm water grab samples from sampling locations described below. The storm water grab sample(s) obtained shall be representative of the flow and characteristics of the discharge. At minimum, Risk Level 2 dischargers shall collect 3 samples per day during the qualifying event. Risk Level 2 dischargers shall ensure that the grab samples collected of stored or contained storm water are from discharges subsequent to a qualifying rain event (producing precipitation of ½ inch or more at the time of discharge). Analyze for ph and turbidity and any additional parameters requested by the NCRWQCB. If there are more than three discharge points, the sampler shall take samples from each of the discharge points. For sites with less than 3 sampling points, repeat samples can be taken from one or more of the sampling locations. Sampling Locations Sampling locations are based on proximity to identified discharge or run-on location(s), accessibility for sampling, personnel safety, and other factors in accordance with the applicable requirements in the General Permit. Sampling locations are shown on the WPCDs in Attachment B and include Sampling Points SW# 1 through SW#5. These are at points of all potentially significant discharge from the construction site. Sampled Parameters Table 5-3 shows the sampled parameters for storm event monitoring, test methods, holding times, preservation methods and bottles required. L&A recommends that ph and turbidity be run in the field with properly calibrated and maintained equipment. The other constituent potentially analyzed (Risk Level 3) on Table 5-3 is suspended sediment concentration (SSC) Lawrence & Associates

40 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-7 SECTION 5 MONITORING AND REPORTING PLAN Table 5-3 Sample Collection, Preservation, and Analysis for Storm Event Monitoring Constituent ( 1 ) Analytical Method Sample Required? (Yes or No) Sample Preservation Minimum Sample Volume Sample Bottle Maximum Holding Time Turbidity 2 EPA Std Method 2130(b) YES Store at 4 C (39.2 F) 250 ml Plastic 48 hr ph 2 EPA YES none 250 ml Plastic 24 hr Suspended Sediment Concentration (SSC) ASTM D No, for Risk Level 3 receiving water if storm water effluent (discharge) average > 500 NTU turbidity or ph<6 or>9 Store at 4 C (39.2 F) 250 ml Plastic 48 hr Notes: ( 1 ) Samples shall be analyzed by using methods (b) and (c), or only method (a); ( 2 ) Field analyses recommended. ASTM - American Society for Testing and Materials mg/ L Milligrams per liter C - Degrees Celsius ml Milliliters F - Degrees Fahrenheit NTU Nephelometric Turbidity Unit EPA - U.S. Environmental Protection Agency Std Per the Standard Methods for the Examination of L - Liter Water and Wastewater, 20 th Edition, American ml/ L/ hr - Milliliters per liter per hour Water Works Association Lawrence & Associates

41 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-8 SECTION 5 MONITORING AND REPORTING PLAN Non-Visible Pollution Monitoring Monitoring for non-visible pollutants is required at any construction site when the exposure of construction materials occurs and where a discharge can cause or contribute to an exceedance of a water quality objective. The General Permit requires that all dischargers develop a sampling and analysis strategy for monitoring pollutants that are not visually detectable in storm water. Of significant concern for construction discharges are the pollutants found in materials used in large quantities at construction sites throughout California and exposed throughout the rainy season, such as cement, fly ash, and other recycled materials or by-products of combustion. The water quality standards that apply to these materials will depend on their composition. Some of the more common storm water pollutants from construction activity are not California Toxics Rule (CTR) pollutants. Examples of non-visible pollutants include glyphosate (herbicides), diazinon and chlorpyrifos (pesticides), nutrients (fertilizers), and molybdenum (lubricants). The use of diazinon and chlorpyrifos is a common practice among landscaping professionals and may trigger sampling and analysis requirements if these materials come into contact with storm water. High ph values from cement and gypsum, high ph and SSC from wash waters, and chemical/fecal contamination from portable toilets, also are not CTR pollutants. Although some of these constituents do have numeric water quality objectives in individual Basin Plans, many do not and are subject only to narrative water quality standards (i.e., not causing toxicity). Dischargers are encouraged to discuss these issues with NCRWQCB staff and other storm water quality professionals. The most effective way to avoid the sampling and analysis requirements, and to ensure permit compliance, is to avoid the exposure of construction materials to precipitation and storm water runoff. Materials that are not exposed do not have the potential to enter storm water runoff, and therefore, non-visible pollution monitoring is not required. Preventing contact between storm water and construction materials is one of the most important BMPs at any construction site. Preventing or eliminating the exposure of pollutants at construction sites is not always possible. Some materials, such as soil amendments, are designed to be used in a manner that will result in exposure to storm water. In these cases, it is important to make sure that these materials are applied according to the manufacturer s instructions and at a time when they are unlikely to be washed away. Other construction materials can be exposed when storage, waste disposal, or the application of the material is done in a manner not protective of water quality. For these situations, sampling is required unless Lawrence & Associates

42 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-9 SECTION 5 MONITORING AND REPORTING PLAN there is capture and containment of all storm water that has been exposed. In cases where construction materials may be exposed to storm water, but the storm water is contained and is not allowed to run off the site, sampling will only be required when inspections show that the containment failed or is breached, resulting in potential exposure or discharge to receiving waters. The contractor must develop a list of potential pollutants based on a review of potential sources, which will include construction materials soil amendments, soil treatments, and historic contamination at the site, if any. The contractor must review existing environmental and real estate documentation to determine the potential for pollutants that could be present on the construction site as a result of past land use activities. The potential pollutant list must include all non-visible pollutants that are known or should be known to occur on the construction site including, but not limited to, materials that: Are being used in construction activities; Are stored on the construction site; Were spilled during construction operations and not cleaned up; Were stored (or used) in a manner that created the potential for a release of the pollutant; Were spilled during previous land use activities and not cleaned up; or Were applied to the soil as part of past land use activities. The following construction materials, wastes, or activities, are potential sources of non-visible pollutants to storm water discharges from construction projects of this type. Concrete curing agents (VOCs). Batteries (sulfate, sulfuric acid, lead). Fertilizers, herbicides, and pesticides (nitrogen, nitrate). Binding agents. Fuel. Lubricants. These items will not contribute to non-visible pollution if they are covered and properly stored. If any of these items are found uncovered or spilled on the site, the method of containment shall be corrected and the substance added to the monitoring list for non-visible materials as described in Table 5-4. The General Order requires that Risk Level 2 dischargers (by the Discharger s Contractor through the construction period, and by the Owner s (Discharger s) personnel after the construction period is completed, as needed, until the Notice of Termination is submitted): Lawrence & Associates

43 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-10 SECTION 5 MONITORING AND REPORTING PLAN Collect one or more samples during any breach, malfunction, leakage, or spill observed during a visual inspection which could result in the discharge of pollutants to surface waters that would not be visually detectable in storm water. Ensure that water samples are large enough to characterize the site conditions. Collect samples at all discharge locations that can be safely accessed. Collect samples during the first two hours of discharge from rain events that occur during business hours and which generate runoff. Analyze samples for all non-visible pollutant parameters (if applicable) - parameters indicating the presence of pollutants identified in the pollutant source assessment required (Risk Level 2 dischargers shall modify their CSMPs to address these additional parameters in accordance with any updated SWPPP pollutant source assessment). Collect a sample of storm water that has not come in contact with the disturbed soil or the materials stored or used on-site (uncontaminated sample) for comparison with the discharge sample. Compare the uncontaminated sample to the samples of discharge using field analysis or through laboratory analysis. 1 Dischargers shall keep all field/or analytical data in the SWPPP document. Samples for the applicable non-visible pollutant(s) and, if feasible, a sufficiently large uncontaminated background sample shall be collected during the first two hours of discharge from rain events that result in a sufficient discharge for sample collection. Samples shall be collected during daylight hours (sunrise to sunset) and shall be collected regardless of the time of year, status of the construction site, or day of the week. In conformance with the General Permit definition, a minimum of 48 hours of dry weather will be used to distinguish between separate rain events. Collection of discharge samples for non-visible pollutant monitoring will be triggered when any of the following conditions are observed during the required inspections conducted before or during rain events: 1 For laboratory analysis, all sampling, sample preservation, and analyses must be conducted according to test procedures under 40 CFR Part 136. Field discharge samples shall be collected and analyzed according to the specifications of the manufacturer of the sampling devices employed Lawrence & Associates

44 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-11 SECTION 5 MONITORING AND REPORTING PLAN Materials or wastes containing potential non-visible pollutants are not stored under watertight conditions. Watertight conditions are defined as (1) storage in a watertight container, (2) storage under a watertight roof or within a building, or (3) protected by temporary cover and containment that prevents storm water contact and runoff from the storage area. Materials or wastes containing potential non-visible pollutants are stored under watertight conditions, but (1) a breach, malfunction, leakage, or spill is observed, (2) the leak or spill is not cleaned up prior to the rain event, and (3) there is the potential for discharge of non-visible pollutants to surface waters or a storm sewer system. An operational activity, including but not limited to those in Section 5-4.3, with the potential to contribute non-visible pollutants (1) was occurring during or within 24 hours prior to the rain event, (2) applicable BMPs were observed to be breached, malfunctioning, or improperly implemented, and (3) there is the potential for discharge of non-visible pollutants to surface waters or a storm sewer system. Soil amendments that have the potential to change the chemical properties, engineering properties, or erosion resistance of the soil have been applied, and there is the potential for discharge of non-visible pollutants to surface waters or a storm sewer system. Storm-water runoff from an area contaminated by historical usage of the site has been observed to combine with storm water runoff from the site, and there is the potential for discharge of non-visible pollutants to surface waters or a storm sewer system Lawrence & Associates

45 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-12 SECTION 5 MONITORING AND REPORTING PLAN Table 5-4 Sample Collection, Preservation and Analysis for Monitoring Non-Visible Pollutants Constituent Analytical Method Minimum Sample Volume Sample Bottle Sample Preservation Reporting Limit Maximum Holding Time Oil & Grease SW L Glass-Amber Store at 4 C 1 mg/l 7 days Total Petroleum Hydrocarbons 1 L Glass-Amber Store at 4 C 10 ug/l 7 days VOCs-Solvents EPA 8260B 3 x 40 ml VOA-glass Store at 4 C, HCI to ph<2 1 ug/l 14 days SVOCs EPA 8270C 1 x 1 L Glass-Amber Store at 4 C 10 ug/l 7 days Pesticides/PCBs EPA 081A x 1 L Glass-Amber Store at 4 C 0.1 ug/l. 7 days Herbicides EPA 8151A 1 x 1 L Glass-Amber Store at 4 C Check Lab 7 days BOD EPA x 500 ml Polypropylene Store at 4 C 1 mg/l 48 hours COD EPA x 250 ml Glass-Amber Store at 4 C, H 2 SO 4 to ph<2 5 mg/l 28 days DO SM G 1 x 250 ml Glass-Amber Store at 4 C Check Lab 8 hours ph EPA x 100 ml Polypropylene None Unitless Immediate Alkalinity SM 2320B 1 x 250 ml Polypropylene Store at 4 C 1 mg/l 14 days Nitrate as Nitrogen EPA x 250 ml Polypropylene Store at 4 C 1 mg/l 48 hours Sulfate EPA x 250 ml Polypropylene Store at 4 C 1 mg/l 7 days Metals (Al, Sb, As, Ba, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Mo, Ni, Se, Na, Tl, V, Zn) EPA 6010B/7470A 1 x 250 ml Polypropylene Store at 4 C, HNO 3 to ph<2 0.1 mg/l 6 months Metals (Chromium VI) EPA x 500 ml Polypropylene Store at 4 C 1 ug/l 24 hours Notes: C Degrees Celsius ug/l Micrograms per Liter BOD Biological Oxygen Demand ml Milliliter COD Chemical Oxygen Demand PCB Polychlorinated Biphenyl DO Dissolved Oxygen SVOC Semi-Volatile Organic Compound EPA Environmental Protection Agency SM Standard Method HCI Hydrogen Chloride TPH Total Petroleum Hydrocarbons Lawrence & Associates

46 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-13 SECTION 5 MONITORING AND REPORTING PLAN 5-5. Water Quality Monitoring Procedures Monitoring Preparation These procedures apply only when an NOI is required. Otherwise these services will be provided by the Owner under the WDRs for the site. Prior to the rainy season, all sampling personnel and alternates will review this CSMP. Monitoring will be performed by the Discharger s Contractor through the construction period, and by the Owner s (Discharger s) personnel after the construction period is completed, as needed, until the Notice of Termination is submitted. Qualifications of designated Contractor personnel describing environmental sampling training and experience shall be placed in Attachment K. An adequate stock of supplies and equipment for monitoring sedimentation/siltation and/or turbidity will be available on the project site or provided by the chosen laboratory prior to a sampling event. Monitoring supplies and equipment will be stored in a cool-temperature environment that will not come into contact with rain or direct sunlight. Sampling personnel will be available to collect samples in accordance with the requirements of the General Order. Supplies maintained at or within ½ hour of the project site will include, but will not be limited to, sampling gloves, sample collection equipment, coolers, appropriate number and volume of sample bottles, identification labels, re-sealable storage bags, paper towels, personal rain gear, ice, Sampling Activity Log forms, and Chain-of-Custody (COC) forms. The Contractor will obtain and maintain the field-testing instruments for analyzing samples in the field by Contractor sampling personnel. Safety practices for sample collection will be in accordance with the Contractors company-wide and/or site-specific health & safety plan. Samples on the project site may be collected either by the SWPPM or his or her designated QSP. The Contractor may also request that a representative of a California state-certified laboratory, collect the samples, such as: Company Name: BC Laboratories Address: 4100 Atlas Court Bakersfield, CA Telephone Number: (661) The SWPPM will contact the laboratory 24 hours prior to a predicted rain event to ensure that adequate sample collection personnel, supplies and field test equipment for monitoring are available Lawrence & Associates

47 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-14 SECTION 5 MONITORING AND REPORTING PLAN and will be mobilized to collect samples on the project site in accordance with the sampling schedule Sample Collection and Handling Sample Collection Procedures Grab samples for storm-event monitoring will be collected and preserved in accordance with the methods identified in Table 5-3. Samples collected for non-visible storm water sampling will be collected and preserved in accordance with Table 5-4. Only personnel trained in proper water quality sampling will collect samples. Run-on samples, if applicable, will be collected to identify potential sedimentation/siltation and/or turbidity that originates off the project site and contributes to direct discharges from the construction site. Run-on samples will be collected downgradient and within close proximity of the point of runon to the project by pooling or ponding water and allowing the ponded water to spill over into sample bottles directly in the stream of water. For non-visible storm water sampling, to maintain sample integrity and prevent cross-contamination, sampling collection personnel will: Wear a clean pair of sampling gloves prior to the collection and handling of each sample at each location. Not contaminate the inside of the sample bottle by not allowing it to come into contact with any material other than the water sample. Discard sample bottles or sample lids that have been dropped onto the ground prior to sample collection. Not leave the cooler lid open for an extended period of time once samples are placed inside. Not sample near a running vehicle where exhaust fumes may impact the sample. Not touch the exposed end of a sampling tube, if applicable. Avoid allowing rainwater to drip from rain gear or other surfaces into sample bottles. Not eat, smoke, or drink during sample collection. Not sneeze or cough in the direction of an open sample bottle. Minimize the exposure of the samples to direct sunlight, as sunlight may cause biochemical transformation of the sample to take place. Decontaminate sampling equipment prior to sample collection using a TSP-soap water wash, distilled water rinse, and final rinse with distilled water. Dispose of decontamination water/soaps appropriately; i.e., not discharge to the storm drain system or receiving water Lawrence & Associates

48 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-15 Sample Handling Procedures SECTION 5 MONITORING AND REPORTING PLAN Immediately following collection, sample bottles for laboratory analytical testing will be capped, labeled, documented on a Chain-of-Custody (COC) form provided by the analytical laboratory, sealed in a re-sealable plastic storage bag, placed in an ice-chilled cooler, at as near to 4 degrees Celsius as practicable, and delivered the same day if feasible to the following California statecertified laboratory, such as: Company Name: BC Laboratories Address: 4100 Atlas Court Bakersfield, CA Telephone Number: (661) Immediately following collection, samples for field analysis will be tested in accordance with the field instrument manufacturer s instructions and results recorded on the Sampling Activity Log. Sample Documentation Procedures All original data documented on sample bottle identification labels, COC forms, Sampling Activity Logs, and Inspection Checklists will be recorded using waterproof ink. These will be considered accountable documents. If an error is made on an accountable document, the individual will make corrections by lining through the error and entering the correct information. The erroneous information will not be obliterated. All corrections will be initialed and dated. Copies of the Sampling Activity Log and Chain-of-Custody form are provided in Attachment R. Sampling and field analysis activities will be documented using the following: Sample Bottle Identification Labels: Sampling personnel will attach an identification label to each sample bottle. At a minimum, the following information will be recorded on the label, as appropriate: o Project name. o Project number. o Unique sample identification number and location. o Quality assurance/quality control (QA/QC) samples shall be identified similarly using a unique sample number or designation (Example: 0G DUP 1). o Collection date/time (No time applied to QA/QC samples). o Analysis constituent Lawrence & Associates

49 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-16 SECTION 5 MONITORING AND REPORTING PLAN Sampling Activity Logs: A log of sampling events will identify: o Sampling date: Separate times for sample collection of upstream, downstream, run-on, and QA/QC samples recorded to the nearest minute. o Unique sample identification number and location. o Analysis constituent. o Names of sampling personnel. o Weather conditions (including precipitation amount). o Field analysis results. o Other pertinent data. Chain-of-Custody (COC) forms: All samples to be analyzed by a laboratory will be accompanied by a COC form provided by the laboratory. Only the sample collectors will sign the COC form over to the lab. COC procedures will be strictly adhered to for QA/QC purposes. Storm Water Quality Construction Inspection Checklists: When applicable, the Contractor s storm water inspector will document on the checklist that samples for sedimentation/siltation and/or turbidity were taken during a rain event Quality Assurance/Quality Control For an initial verification of laboratory or field analysis, duplicate samples will be collected at a rate of 10 percent or 1 duplicate per sampling event. The duplicate sample will be collected, handled, and analyzed using the same protocols as primary samples, and will be collected where contaminants are likely, and not on the upstream sample. A duplicate sample will be collected immediately after the primary sample has been collected. Duplicate samples will not influence any evaluations or conclusions; however, they will be used as a check on laboratory quality assurance. For samples collected for field analysis, collection, analysis, and equipment calibration will be in accordance with the field instrument manufacturer s specifications. The following field instrument(s) will be used to analyze the following constituents: The instrument(s) will be maintained in accordance with manufacturer s instructions. The instrument(s) will be calibrated before each sampling and analysis event. Maintenance and calibration records will be maintained with the SWPPP Lawrence & Associates

50 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-17 SECTION 5 MONITORING AND REPORTING PLAN Lab reports and COCs will be reviewed for consistency between lab methods, sample identifications, dates, and times for both primary samples and QA/QC samples. All data, including COC forms and Sampling Activity Logs, shall be kept with the SWPPP Data Management and Reporting A copy of all water quality analytical results and QA/QC data will be included in the on-site SWPPP within 5 days of sampling (for field analyses) and within 30 days of sampling (for laboratory analyses). Lab reports and COCs will be reviewed for consistency between lab methods, sample identifications, dates, and times for both primary samples and QA/QC samples. All data, including COC forms and Sampling Activity Logs, shall be kept with the SWPPP document. In the event that any effluent sample exceeds an applicable NAL, Risk Level 2 dischargers shall electronically submit all storm event sampling results to the State Water Board no later than 10 days after the conclusion of the storm event. The Regional Boards have the authority to require the submittal of an NAL Exceedance Report as described under reporting below Data Evaluation An evaluation of the water quality sample analytical results, including figures with sample locations, the water quality analytical results, and the QA/QC data for every event that samples are collected, will be included in the on-site SWPPP. Should the ph and turbidity samples exceed the NAL limits, appropriate BMPs will be repaired or modified to mitigate exceedance of NALs. Any revisions to the BMPs will be recorded as an amendment to the SWPPP Change of Conditions Whenever SWPPP monitoring, pursuant to Section B of the General Permit, indicates a change in site conditions that might affect the appropriateness of sampling locations, testing protocols will be revised accordingly. All such revisions will be recorded as amendments to the SWPPP Reporting Requirements NEL Violation Reports Numeric effluent limitations (NELs) have been removed from the General Permit by Order No DWQ. Receiving water monitoring triggers for Risk Level 3 have been established Lawrence & Associates

51 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-18 SECTION 5 MONITORING AND REPORTING PLAN NAL Exceedance Reporting Risk Level 2 dischargers (with assistance from their Contractor through the construction period or by the discharger s personnel after the construction period) shall electronically submit all storm event sampling results to the State Water Board no later than 10 days after the conclusion of the storm event. The numeric action levels (NALs) are used as a warning to evaluate the effectiveness of best management practices. Proper implementation of BMPs should result in discharges that are within the range of 6.5 to 8.5 ph units and have a turbidity below 250 Nephelometric Turbidity Units (NTU) Annual Report The discharger must prepare and electronically submit an annual report no later than September 1 of each year using the SMARTS system, with assistance from their Contractor through the construction period or by the discharger s personnel after the construction period. The Annual Report must include a summary and evaluation of all sampling and analysis results, original laboratory reports, chain-of-custody forms, summary of all corrective actions taken during the compliance year, and identification of any compliance activities or corrective actions that were not implemented. If an NOI is not required, reporting will be made in conjunction with regular storm water/surface water reporting under the General Industrial Permit for the Site Non-Compliance Reporting If a discharge occurs or if the project receives a written notice of non-compliance, the Contractor will immediately notify the Owner and will file a written report to the Owner within 7 days of the discharge or notice. The Owner is responsible for filing a written report to the NCRWQCB within 30 days or identification of non-compliance. Corrective measures will be implemented immediately following the discharge, notice or order. A sample Notice of Non-Compliance (NONC) form is provided in Attachment H. All discharges will be documented on a Discharge Reporting Log using the example form in Attachment T. The report to the Owner and to the NCRWQCB will contain the following items: The date, time, location, nature of operation, and type of unauthorized discharge, including the cause or nature of the notice or order. 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 Lawrence & Associates

52 Summers Lane Reservoir Construction March 3, 2016 Storm Water Pollution Prevention Plan (SWPPP) Page 5-19 SECTION 5 MONITORING AND REPORTING PLAN event, or after receiving the notice or order, including additional measures installed or planned to reduce or prevent re-occurrence. An implementation and maintenance schedule for any affected BMPs Record Keeping According to the General Order, the discharger (Owner) is required to retain paper or electronic copies of all records required by the General Permit for a period of at least three years from the date generated or the date submitted to the NCRWQCB. The discharger s Contractor will provide copies of all related General Permit documentation within 30 days after the end of the construction period. A discharger must retain records for a period beyond three years as directed by NCRWQCB. Copies of the records must be maintained on site while construction is ongoing. In general, the records must include: The date, place, time of facility inspections, sampling, visual observation (inspections), and/or measurements, including precipitation. The individual(s) who performed the facility inspections, sampling, visual observation (inspections), and or measurements. The date and approximate time of analyses. The individual(s) who performed the analyses. A summary of all analytical results from the last three years, the method detection limits and reporting units, the analytical techniques or methods used, and the chain-of-custody forms. Rain gauge readings from site inspections. Quality assurance/quality control records and results. Non-storm water discharge inspections and visual observation (inspections) and storm water discharge visual observation records. Visual observation and sample collection exception records. The following records must be retained: NOI. Site inspections. Annual Reports. Compliance certifications. Discharge reports. Approved SWPPP document and amendments. NOT Lawrence & Associates

53 ATTACHMENT A Vicinity Map

54 SITE HWY Feet PROJECT NAME: PROJECT NO: DATE: CONST. SWPPP /11/2016 CLIENT: DRAWN BY: FORT BRAGG J. BEERS SCALE: CHECKED BY: 1" = 2000' B. GARTNER P:\ SUMMERS LANE\site_loc.dwg J.R.B. 2/11/2016

55

56 PROJECT NO: DRAWN BY: DATE: CHECKED BY: SCALE: N.T.S. J. BEERS 2/25/2016 B. GARTNER

57 BRUSH CREEK ROAD LEGEND. SUMMERS LANE Feet PROJECT NO: DRAWN BY: DATE: CHECKED BY: SCALE: " = 120' J. BEERS 3/3/2016 B. GARTNER

58 PROJECT NO: DRAWN BY: DATE: CHECKED BY: SCALE: N.T.S. J. BEERS 2/25/2016 B. GARTNER

59

60 Prepared for City of Fort Bragg, Summers Lane Reservoir Construction SWPPP, Mendocino County CA Attachment C BMP Consideration Checklist CONSTRUCTION SITE BMPs CONSIDERATION CHECKLIST The BMPs listed here should be considered for every project. Those BMPs that are not included in the SWPPP must be checked as Not Used with a brief statement describing why it is not being used. EROSION CONTROL BMPs BMP No. BMP CONSIDERED FOR PROJECT CHECK IF USED CHECK IF NOT USED IF NOT USED, STATE REASON EC-1 Scheduling Yes X EC-2 Preservation of Existing Vegetation Yes X EC-3 Hydraulic Mulch Yes X EC-4 Hydroseeding Yes X EC-5 Soil Binders Yes X Not Applicable EC-6 Straw Mulch Yes X EC-7 Geotextiles & Mats Yes X EC-8 Wood Mulching Yes X EC-9 EC-10 Earth Dikes & Drainage Swales Velocity Dissipation Devices Yes Yes X X EC-11 Slope Drains Yes X Not Applicable EC-12 Streambank Stabilization No X Not Applicable EC-13 Polyacrylamide No X Not Applicable California Storm Water Quality Handbooks Construction BMP Consideration Checklist January of 4

61 Attachment C BMP Consideration Checklist CONSTRUCTION SITE BMPs CONSIDERATION CHECKLIST The BMPs listed here should be considered for every project. Those BMPs that are not included in the SWPPP must be checked as Not Used with a brief statement describing why it is not being used. SEDIMENT CONTROL BMPs BMP No. BMP CONSIDERED FOR PROJECT CHECK IF USED CHECK IF NOT USED IF NOT USED, STATE REASON SE-1 Silt Fence Yes X SE-2 Sediment Basin Yes X SE-3 Sediment Trap Yes X Not Applicable SE-4 Check Dam Yes X SE-5 Fiber Rolls Yes X SE-6 Gravel Bag Berm Yes X Not Applicable SE-7 Street Sweeping and Vacuuming Yes X SE-8 Sand Bag Barrier Yes X Not Applicable SE-9 Straw Bale Barrier Yes X Not Applicable SE-10 SE-11 Storm Drain Inlet Protection Chemical Treatment/ATS Yes X No X Not Applicable SE-12 Temporary Silt Dike No X Not Applicable SE-13 Compost Socks and Berms No X Not Applicable SE-14 Biofilter Bags Yes X Water Vel. Or Vol. Exceeded WE-1 Wind Erosion Control Yes X WIND EROSION CONTROL BMPs TRACKING CONTROL BMPs TC-1 TC-2 TC-3 Stabilized Construction Entrance/Exit Stabilized Construction Roadway Entrance/Outlet Tire Wash Yes Yes Yes X X X California Stormwater Quality Handbooks BMP Consideration Checklist Construction 2 of 4 January 2003 Errata 8-04

62 Attachment C BMP Consideration Checklist CONSTRUCTION SITE BMPs CONSIDERATION CHECKLIST The BMPs listed here should be considered for every project. Those BMPs that are not included in the SWPPP must be checked as Not Used with a brief statement describing why it is not being used. NON-STORM WATER MANAGEMENT BMPs BMP No. NS-1 BMP Water Conservation Practices CONSIDERED FOR PROJECT Yes CHECK IF USED X CHECK IF NOT USED IF NOT USED, STATE REASON NS-2 Dewatering Operations Yes X Not Applicable NS-3 NS-4 Paving and Grinding Operations Temporary Stream Crossing Yes X Not Applicable Yes X Not Applicable NS-5 Clear Water Diversion Yes X Not Applicable NS-6 NS-7 NS-8 NS-9 NS-10 Illicit Connection/ Discharge Potable Water/Irrigation Vehicle and Equipment Cleaning Vehicle and Equipment Fueling Vehicle and Equipment Maintenance Yes X Yes X Not Applicable Yes X Yes X Yes X NS-11 Pile Driving Operations Yes X Not Applicable NS-12 Concrete Curing Yes X Not Applicable NS-13 Concrete Finishing Yes X Not Applicable NS-14 NS-15 NS-16 Material and Equipment Use Over Water Demolition Adjacent to Water Temporary Batch Plants Yes X Not Applicable Yes X Not Applicable Yes X Not Applicable California Storm Water Quality Handbooks Construction BMP Consideration Checklist January of 4 Errata 8-04

63 Attachment C BMP Consideration Checklist CONSTRUCTION SITE BMPs CONSIDERATION CHECKLIST The BMPs listed here should be considered for every project. Those BMPs that are not included in the SWPPP must be checked as Not Used with a brief statement describing why it is not being used. WASTE MANAGEMENT AND MATERIALS POLLUTION CONTROL BMPs BMP No. WM-1 BMP Material Delivery and Storage CONSIDERED FOR PROJECT Yes CHECK IF USED X CHECK IF NOT USED IF NOT USED, STATE REASON WM-2 Material Use Yes X WM-3 WM-4 WM-5 WM-6 WM-7 WM-8 WM-9 WM-10 Stockpile Management Spill Prevention and Control Solid Waste Management Hazardous Waste Management Contaminated Soil Management Concrete Waste Management Sanitary/Septic Waste Management Liquid Waste Management Yes X Yes X Yes X Yes X Yes X Yes X Yes X Yes X Not Applicable California Stormwater Quality Handbooks BMP Consideration Checklist Construction 4 of 4 January 2003 Errata 8-04

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65 March 3, 2016 Risk Assessment The Site Sediment Risk Factor is calculated by using the following equation: R x K x LS = Watershed Erosion Estimate (in tons/acre) Where: R = Rainfall-Runoff Erosivity Factor K = Soil Erodibility Factor LS = Length-Slope Factor See Risk Assessment Map References, State Water Resources Control Board, Isoerodent R Value Map oerodent.pdf R = 80 (isoerodent map value for entire year) x 20.3% (erosivity index from May 1 to October 15) = See following maps, RUSLE Risk Factors from State Water Resources Control Board, ftp://swrcb2a.waterboards.ca.gov/pub/swrcb/dwq/cgp/risk/rusle/ June Therefore: Shows K = 0.37 LS = 2.9 R x (K x LS) = Watershed Erosion Estimate (in tons/acre) x 0.37 x 2.9 = tons/acre This corresponds to a Medium Sediment Risk. This project discharges indirectly to the Noyo River, which is a 303 (d)-listed water body impaired by sediment (with a USEPA Total Maximum Daily Load implementation plan) with the designated beneficial uses of SPAWN and COLD and MIGRATORY. This corresponds to a High Receiving Water Risk. This project, having a Medium Sediment Risk and a High Receiving Water Risk, falls into Risk Level 2 status. See the following Combined Risk Level Matrix. Lawrence & Associates

66 1 2 Sediment Risk Factor Worksheet A) R Factor A B C Entry 3 4 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) R Factor Value 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 9 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 Medium 2.9

67 Isoerodent R Value

68 Fact Sheet Construction Rainfall Erosivity Waiver Page 4 Figure 1. Erosivity Index Zone Map

69 Table 1. Erosivity Index (%EI Values extracted from USDA Manual 703) All values are at the end of the day listed below - Linear interpolation between dates is acceptable. EI as a percentage of Average Annual R Value Computed for Geographic Areas Shown in Figure 1 Month Jan Jan Jan Feb Mar Mar Mar Apr Apr May May Jun Jun Jul Jul Aug Aug Sept Sept Oct Oct Nov Nov Dec Dec Day EI Zone Fact Sheet Construction Rainfall Erosivity Waiver Page 9

70 Month Jan Jan Jan Feb Mar Mar Mar Apr Apr May May Jun Jun Jul Jul Aug Aug Sept Sept Oct Oct Nov Nov Dec Dec Day EI Zone Fact Sheet Construction Rainfall Erosivity Waiver Page 10

71 Month Jan Jan Jan Feb Mar Mar Mar Apr Apr May May Jun Jun Jul Jul Aug Aug Sept Sept Oct Oct Nov Nov Dec Dec Day EI Zone Fact Sheet Construction Rainfall Erosivity Waiver Page 11

72 Month Jan Jan Jan Feb Mar Mar Mar Apr Apr May May Jun Jun Jul Jul Aug Aug Sept Sept Oct Oct Nov Nov Dec Dec Day EI Zone Fact Sheet Construction Rainfall Erosivity Waiver Page 12

73

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75 Receiving Water (RW) Risk Factor Worksheet Entry Score A. Watershed Characteristics yes/no A.1. Does the disturbed area discharge (either directly or indirectly) to a 303(d)-listed waterbody impaired by sediment (For help with impaired waterbodies please visit the link below) or has a USEPA approved TMDL implementation plan for sediment?: OR A.2. Does the disturbed area discharge to a waterbody with designated beneficial uses of SPAWN & COLD & MIGRATORY? (For help please review the appropriate Regional Board Basin Plan) Yes High Region 1 Basin Plan Region 2 Basin Plan Region 3 Basin Plan Region 4 Basin Plan Region 5 Basin Plan Region 6 Basin Plan Region 7 Basin Plan Region 8 Basin Plan Region 9 Basin Plan

76 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: Medium 2 Project RW Risk: High 2 Project Combined Risk: Level 2

77 ATTACHMENT E Risk Level 2 Requirements

78 ATTACHMENT D ATTACHMENT D RISK LEVEL 2 REQUIREMENTS A. Effluent Standards [These requirements are the same as those in the General Permit order.] 1. Narrative Risk Level 2 dischargers shall comply with the narrative effluent standards listed below: a. Storm water discharges and authorized non-storm water discharges regulated by this General Permit shall not contain a hazardous substance equal to or in excess of reportable quantities established in 40 C.F.R and 302.4, unless a separate NPDES Permit has been issued to regulate those discharges. b. Dischargers shall minimize or prevent pollutants in storm water discharges and authorized non-storm water discharges through the use of controls, structures, and management practices that achieve BAT for toxic and non-conventional pollutants and BCT for conventional pollutants. 2. Numeric Risk level 2 dischargers are subject to a ph NAL of , and a turbidity NAL of 250 NTU. B. Good Site Management "Housekeeping" 1. Risk Level 2 dischargers shall implement good site management (i.e., "housekeeping") measures for construction materials that could potentially be a threat to water quality if discharged. At a minimum, Risk Level 2 dischargers shall implement the following good housekeeping measures: a. Conduct an inventory of the products used and/or expected to be used and the end products that are produced and/or expected to be produced. This does not include materials and equipment that are designed to be outdoors and exposed to environmental conditions (i.e. poles, equipment pads, cabinets, conductors, insulators, bricks, etc.). b. Cover and berm loose stockpiled construction materials that are not actively being used (i.e. soil, spoils, aggregate, fly-ash, stucco, hydrated lime, etc.) DWQ amended by DWQ & DWQ 1

79 ATTACHMENT D c. Store chemicals in watertight containers (with appropriate secondary containment to prevent any spillage or leakage) or in a storage shed (completely enclosed). d. Minimize exposure of construction materials to precipitation. This does not include materials and equipment that are designed to be outdoors and exposed to environmental conditions (i.e. poles, equipment pads, cabinets, conductors, insulators, bricks, etc.). e. Implement BMPs to prevent the off-site tracking of loose construction and landscape materials. 2. Risk Level 2 dischargers shall implement good housekeeping measures for waste management, which, at a minimum, shall consist of the following: a. Prevent disposal of any rinse or wash waters or materials on impervious or pervious site surfaces or into the storm drain system. b. Ensure the containment of sanitation facilities (e.g., portable toilets) to prevent discharges of pollutants to the storm water drainage system or receiving water. c. Clean or replace sanitation facilities and inspecting them regularly for leaks and spills. d. Cover waste disposal containers at the end of every business day and during a rain event. e. Prevent discharges from waste disposal containers to the storm water drainage system or receiving water. f. Contain and securely protect stockpiled waste material from wind and rain at all times unless actively being used. g. Implement procedures that effectively address hazardous and nonhazardous spills. h. Develop a spill response and implementation element of the SWPPP prior to commencement of construction activities. The SWPPP shall require: i. Equipment and materials for cleanup of spills shall be available on site and that spills and leaks shall be cleaned up immediately and disposed of properly DWQ amended by DWQ & DWQ 2

80 ATTACHMENT D ii. Appropriate spill response personnel are assigned and trained. i. Ensure the containment of concrete washout areas and other washout areas that may contain additional pollutants so there is no discharge into the underlying soil and onto the surrounding areas. 3. Risk Level 2 dischargers shall implement good housekeeping for vehicle storage and maintenance, which, at a minimum, shall consist of the following: a. Prevent oil, grease, or fuel to leak in to the ground, storm drains or surface waters. b. Place all equipment or vehicles, which are to be fueled, maintained and stored in a designated area fitted with appropriate BMPs. c. Clean leaks immediately and disposing of leaked materials properly. 4. Risk Level 2 dischargers shall implement good housekeeping for landscape materials, which, at a minimum, shall consist of the following: a. Contain stockpiled materials such as mulches and topsoil when they are not actively being used. b. Contain all fertilizers and other landscape materials when they are not actively being used. c. Discontinue the application of any erodible landscape material within 2 days before a forecasted rain event or during periods of precipitation. d. Apply erodible landscape material at quantities and application rates according to manufacture recommendations or based on written specifications by knowledgeable and experienced field personnel. e. Stack erodible landscape material on pallets and covering or storing such materials when not being used or applied. 5. Risk Level 2 dischargers shall conduct an assessment and create a list of potential pollutant sources and identify any areas of the site where additional BMPs are necessary to reduce or prevent pollutants in storm water discharges and authorized non-storm water discharges. This potential pollutant list shall be kept with the SWPPP and shall identify DWQ amended by DWQ & DWQ 3

81 ATTACHMENT D all non-visible pollutants which are known, or should be known, to occur on the construction site. At a minimum, when developing BMPs, Risk Level 2 dischargers shall do the following: a. Consider the quantity, physical characteristics (e.g., liquid, powder, solid), and locations of each potential pollutant source handled, produced, stored, recycled, or disposed of at the site. b. Consider the degree to which pollutants associated with those materials may be exposed to and mobilized by contact with storm water. c. Consider the direct and indirect pathways that pollutants may be exposed to storm water or authorized non-storm water discharges. This shall include an assessment of past spills or leaks, non-storm water discharges, and discharges from adjoining areas. d. Ensure retention of sampling, visual observation, and inspection records. e. Ensure effectiveness of existing BMPs to reduce or prevent pollutants in storm water discharges and authorized non-storm water discharges. 6. Risk Level 2 dischargers shall implement good housekeeping measures on the construction site to control the air deposition of site materials and from site operations. Such particulates can include, but are not limited to, sediment, nutrients, trash, metals, bacteria, oil and grease and organics. 7. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall document all housekeeping BMPs in the SWPPP and REAP(s) in accordance with the nature and phase of the construction project. Construction phases at traditional land development projects include Grading and Land Development Phase, Streets and Utilities, or Vertical Construction for traditional land development projects. C. Non-Storm Water Management 1. Risk Level 2 dischargers shall implement measures to control all nonstorm water discharges during construction. 2. Risk Level 2 dischargers shall wash vehicles in such a manner as to prevent non-storm water discharges to surface waters or MS4 drainage systems DWQ amended by DWQ & DWQ 4

82 ATTACHMENT D 3. Risk Level 2 dischargers shall clean streets in such a manner as to prevent unauthorized non-storm water discharges from reaching surface water or MS4 drainage systems. D. Erosion Control 1. Risk Level 2 dischargers shall implement effective wind erosion control. 2. Risk Level 2 dischargers shall provide effective soil cover for inactive 1 areas and all finished slopes, open space, utility backfill, and completed lots. 3. Risk Level 2 dischargers shall limit the use of plastic materials when more sustainable, environmentally friendly alternatives exist. Where plastic materials are deemed necessary, the discharger shall consider the use of plastic materials resistant to solar degradation. E. Sediment Controls 1. Risk Level 2 dischargers shall establish and maintain effective perimeter controls and stabilize all construction entrances and exits to sufficiently control erosion and sediment discharges from the site. 2. On sites where sediment basins are to be used, Risk Level 2 dischargers shall, at minimum, design sediment basins according to the method provided in CASQA s Construction BMP Guidance Handbook. 3. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall implement appropriate erosion control BMPs (runoff control and soil stabilization) in conjunction with sediment control BMPs for areas under active 2 construction. 4. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall apply linear sediment controls along the toe of the slope, face of the slope, and at the grade breaks of exposed slopes to comply with sheet flow lengths 3 in accordance with Table 1. 1 Inactive areas of construction are areas of construction activity that have been disturbed and are not scheduled to be re-disturbed for at least 14 days. 2 Active areas of construction are areas undergoing land surface disturbance. This includes construction activity during the preliminary stage, mass grading stage, streets and utilities stage and the vertical construction stage. 3 Sheet flow length is the length that shallow, low velocity flow travels across a site DWQ amended by DWQ & DWQ 5

83 ATTACHMENT D Table 1 - Critical Slope/Sheet Flow Length Combinations Slope Percentage Sheet flow length not to exceed 0-25% 20 feet 25-50% 15 feet Over 50% 10 feet 5. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall ensure that construction activity traffic to and from the project is limited to entrances and exits that employ effective controls to prevent offsite tracking of sediment. 6. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall ensure that all storm drain inlets and perimeter controls, runoff control BMPs, and pollutant controls at entrances and exits (e.g. tire washoff locations) are maintained and protected from activities that reduce their effectiveness. 7. Additional Risk Level 2 Requirement: Risk Level 2 dischargers shall inspect on a daily basis all immediate access roads daily. At a minimum daily (when necessary) and prior to any rain event, the discharger shall remove any sediment or other construction activityrelated materials that are deposited on the roads (by vacuuming or sweeping). F. Run-on and Run-off Controls Risk Level 2 dischargers shall effectively manage all run-on, all runoff within the site and all runoff that discharges off the site. Run-on from off site shall be directed away from all disturbed areas or shall collectively be in compliance with the effluent limitations in this General Permit. G. Inspection, Maintenance and Repair 1. Risk Level 2 dischargers shall ensure that all inspection, maintenance repair and sampling activities at the project location shall be performed or supervised by a Qualified SWPPP Practitioner (QSP) representing the discharger. The QSP may delegate any or all of these activities to an employee appropriately trained to do the task(s). 2. Risk Level 2 dischargers shall perform weekly inspections and observations, and at least once each 24-hour period during extended storm events, to identify and record BMPs that need maintenance to operate effectively, that have failed, or that could fail to operate as intended. Inspectors shall be the QSP or be trained by the QSP DWQ amended by DWQ & DWQ 6

84 ATTACHMENT D 3. Upon identifying failures or other shortcomings, as directed by the QSP, Risk Level 2 dischargers shall begin implementing repairs or design changes to BMPs within 72 hours of identification and complete the changes as soon as possible. 4. For each inspection required, Risk Level 2 dischargers shall complete an inspection checklist, using a form provided by the State Water Board or Regional Water Board or in an alternative format. 5. Risk Level 2 dischargers shall ensure that checklists shall remain onsite with the SWPPP and at a minimum, shall include: a. Inspection date and date the inspection report was written. b. Weather information, including presence or absence of precipitation, estimate of beginning of qualifying storm event, duration of event, time elapsed since last storm, and approximate amount of rainfall in inches. c. Site information, including stage of construction, activities completed, and approximate area of the site exposed. d. A description of any BMPs evaluated and any deficiencies noted. e. If the construction site is safely accessible during inclement weather, list the observations of all BMPs: erosion controls, sediment controls, chemical and waste controls, and non-storm water controls. Otherwise, list the results of visual inspections at all relevant outfalls, discharge points, downstream locations and any projected maintenance activities. f. Report the presence of noticeable odors or of any visible sheen on the surface of any discharges. g. Any corrective actions required, including any necessary changes to the SWPPP and the associated implementation dates. h. Photographs taken during the inspection, if any. i. Inspector s name, title, and signature. H. Rain Event Action Plan 1. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP develop a Rain Event Action Plan (REAP) 48 hours prior to any DWQ amended by DWQ & DWQ 7

85 ATTACHMENT D likely precipitation event. A likely precipitation event is any weather pattern that is forecast to have a 50% or greater probability of producing precipitation in the project area. The discharger shall ensure a QSP obtain a printed copy of precipitation forecast information from the National Weather Service Forecast Office (e.g., by entering the zip code of the project s location at 2. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP develop the REAPs for all phases of construction (i.e., Grading and Land Development, Streets and Utilities, Vertical Construction, Final Landscaping and Site Stabilization). 3. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP ensure that the REAP include, at a minimum, the following site information: a. Site Address b. Calculated Risk Level (2 or 3) c. Site Storm Water Manager Information including the name, company, and 24-hour emergency telephone number d. Erosion and Sediment Control Provider information including the name, company, and 24-hour emergency telephone number e. Storm Water Sampling Agent information including the name, company, and 24-hour emergency telephone number 4. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP include in the REAP, at a minimum, the following project phase information: a. Activities associated with each construction phase b. Trades active on the construction site during each construction phase c. Trade contractor information d. Suggested actions for each project phase 5. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP develop additional REAPs for project sites where construction activities are indefinitely halted or postponed (Inactive Construction). At a minimum, Inactive Construction REAPs must include: a. Site Address b. Calculated Risk Level (2 or 3) c. Site Storm Water Manager Information including the name, company, and 24-hour emergency telephone number DWQ amended by DWQ & DWQ 8

86 ATTACHMENT D d. Erosion and Sediment Control Provider information including the name, company, and 24-hour emergency telephone number e. Storm Water Sampling Agent information including the name, company, and 24-hour emergency telephone number f. Trades active on site during Inactive Construction g. Trade contractor information h. Suggested actions for inactive construction sites 6. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP begin implementation and make the REAP available onsite no later than 24 hours prior to the likely precipitation event. 7. Additional Risk Level 2 Requirement: The discharger shall ensure a QSP maintain onsite a paper copy of each REAP onsite in compliance with the record retention requirements of the Special Provisions in this General Permit DWQ amended by DWQ & DWQ 9

87 ATTACHMENT D I. Risk Level 2 Monitoring and Reporting Requirements Table 2- Summary of Monitoring Requirements Visual Inspections Quarterly Pre-storm Risk Nonstorm Event Daily Level Baseline REAP Storm Water BMP Discharge Post Storm Sample Collection Storm Water Discharge 2 X X X X X X 1. Construction Site Monitoring Program Requirements Receiving Water a. Pursuant to Water Code Sections and 13267, all dischargers subject to this General Permit shall develop and implement a written site-specific Construction Site Monitoring Program (CSMP) in accordance with the requirements of this Section. The CSMP shall include all monitoring procedures and instructions, location maps, forms, and checklists as required in this section. The CSMP shall be developed prior to the commencement of construction activities, and revised as necessary to reflect project revisions. The CSMP shall be a part of the Storm Water Pollution Prevention Plan (SWPPP), included as an appendix or separate SWPPP chapter. b. Existing dischargers registered under the State Water Board Order No DWQ shall make and implement necessary revisions to their Monitoring Program to reflect the changes in this General Permit in a timely manner, but no later than July 1, Existing dischargers shall continue to implement their existing Monitoring Programs in compliance with State Water Board Order No DWQ until the necessary revisions are completed according to the schedule above. c. When a change of ownership occurs for all or any portion of the construction site prior to completion or final stabilization, the new discharger shall comply with these requirements as of the date the ownership change occurs. 2. Objectives The CSMP shall be developed and implemented to address the following objectives: a. To demonstrate that the site is in compliance with the Discharge Prohibitions and applicable Numeric Action Levels (NALs) DWQ amended by DWQ & DWQ 10

88 ATTACHMENT D b. To determine whether non-visible pollutants are present at the construction site and are causing or contributing to exceedances of water quality objectives. c. To determine whether immediate corrective actions, additional Best Management Practice (BMP) implementation, or SWPPP revisions are necessary to reduce pollutants in storm water discharges and authorized non-storm water discharges. d. To determine whether BMPs included in the SWPPP/Rain Event Action Plan (REAP) are effective in preventing or reducing pollutants in storm water discharges and authorized non-storm water discharges. 3. Risk Level 2 Visual Monitoring (Inspection) Requirements for Qualifying Rain Events a. Risk Level 2 dischargers shall visually observe (inspect) storm water discharges at all discharge locations within two business days (48 hours) after each qualifying rain event. b. Risk Level 2 dischargers shall visually observe (inspect) the discharge of stored or contained storm water that is derived from and discharged subsequent to a qualifying rain event producing precipitation of ½ inch or more at the time of discharge. Stored or contained storm water that will likely discharge after operating hours due to anticipated precipitation shall be observed prior to the discharge during operating hours. c. Risk Level 2 dischargers shall conduct visual observations (inspections) during business hours only. d. Risk Level 2 dischargers shall record the time, date and rain gauge reading of all qualifying rain events. e. Within 2 business days (48 hours) prior to each qualifying rain event, Risk Level 2 dischargers shall visually observe (inspect): i. all storm water drainage areas to identify any spills, leaks, or uncontrolled pollutant sources. If needed, the discharger shall implement appropriate corrective actions. ii. all BMPs to identify whether they have been properly implemented in accordance with the SWPPP/REAP. If needed, the discharger shall implement appropriate corrective actions DWQ amended by DWQ & DWQ 11

89 ATTACHMENT D iii. any storm water storage and containment areas to detect leaks and ensure maintenance of adequate freeboard. f. For the visual observations (inspections) described in c.i and c.iii above, Risk Level 2 dischargers shall observe the presence or absence of floating and suspended materials, a sheen on the surface, discolorations, turbidity, odors, and source(s) of any observed pollutants. g. Within two business days (48 hours) after each qualifying rain event, Risk Level 2 dischargers shall conduct post rain event visual observations (inspections) to (1) identify whether BMPs were adequately designed, implemented, and effective, and (2) identify additional BMPs and revise the SWPPP accordingly. h. Risk Level 2 dischargers shall maintain on-site records of all visual observations (inspections), personnel performing the observations, observation dates, weather conditions, locations observed, and corrective actions taken in response to the observations. 4. Risk Level 2 Water Quality Sampling and Analysis a. Risk Level 2 dischargers shall collect storm water grab samples from sampling locations, as defined in Section I.5. The storm water grab sample(s) obtained shall be representative of the flow and characteristics of the discharge. b. At minimum, Risk Level 2 dischargers shall collect 3 samples per day of the qualifying event. c. Risk Level 2 dischargers shall ensure that the grab samples collected of stored or contained storm water are from discharges subsequent to a qualifying rain event (producing precipitation of ½ inch or more at the time of discharge). Storm Water Effluent Monitoring Requirements d. Risk Level 2 dischargers shall analyze their effluent samples for: i. ph and turbidity. ii. Any additional parameters for which monitoring is required by the Regional Water Board DWQ amended by DWQ & DWQ 12

90 ATTACHMENT D 5. Risk Level 2 Storm Water Discharge Water Quality Sampling Locations Effluent Sampling Locations a. Risk Level 2 dischargers shall perform sampling and analysis of storm water discharges to characterize discharges associated with construction activity from the entire project disturbed area. b. Risk Level 2 dischargers shall collect effluent samples at all discharge points where storm water is discharged off-site. c. Risk Level 2 dischargers shall ensure that storm water discharge collected and observed represent 4 the effluent in each drainage area based on visual observation of the water and upstream conditions. d. Risk Level 2 dischargers shall monitor and report site run-on from surrounding areas if there is reason to believe run-on may contribute to an exceedance of NALs. e. Risk Level 2 dischargers who deploy an ATS on their site, or a portion on their site, shall collect ATS effluent samples and measurements from the discharge pipe or another location representative of the nature of the discharge. f. Risk Level 2 dischargers shall select analytical test methods from the list provided in Table 3 below. g. All storm water sample collection preservation and handling shall be conducted in accordance with Section I.7 Storm Water Sample Collection and Handling Instructions below. 6. Risk Level 2 Visual Observation and Sample Collection Exemptions a. Risk Level 2 dischargers shall be prepared to collect samples and conduct visual observation (inspections) until the minimum requirements of Sections I.3 and I.4 above are completed. Risk Level 2 dischargers are not required to physically collect samples or conduct visual observation (inspections) under the following conditions: 4 For example, if there has been concrete work recently in an area, or drywall scrap is exposed to the rain, a ph sample shall be taken of drainage from the relevant work area. Similarly, if sediment laden water is flowing through some parts of a silt fence, samples shall be taken of the sediment-laden water even if most water flowing through the fence is clear DWQ amended by DWQ & DWQ 13

91 ATTACHMENT D i. During dangerous weather conditions such as flooding and electrical storms. ii. Outside of scheduled site business hours. b. If no required samples or visual observation (inspections) are collected due to these exceptions, Risk Level 2 dischargers shall include an explanation in their SWPPP and in the Annual Report documenting why the sampling or visual observation (inspections) were not conducted. 7. Risk Level 2 Storm Water Sample Collection and Handling Instructions a. Risk Level 2 dischargers shall refer to Table 3 below for test methods, detection limits, and reporting units. b. Risk Level 2 dischargers shall ensure that testing laboratories will receive samples within 48 hours of the physical sampling (unless otherwise required by the laboratory), and shall use only the sample containers provided by the laboratory to collect and store samples. c. Risk Level 2 dischargers shall designate and train personnel to collect, maintain, and ship samples in accordance with the Surface Water Ambient Monitoring Program s (SWAMP) 2008 Quality Assurance Program Plan (QAPrP) Risk Level 2 Monitoring Methods a. Risk Level 2 dischargers shall include a description of the following items in the CSMP: i. Visual observation locations, visual observation procedures, and visual observation follow-up and tracking procedures. ii. Sampling locations, and sample collection and handling procedures. This shall include detailed procedures for sample collection, storage, preservation, and shipping to the testing lab to assure that consistent quality control and quality assurance is maintained. Dischargers shall attach to the monitoring program 5 Additional information regarding SWAMP s QAPrP can be found at QAPrP: 108a.pdf DWQ amended by DWQ & DWQ 14

92 ATTACHMENT D an example Chain of Custody form used when handling and shipping samples. iii. Identification of the analytical methods and related method detection limits (if applicable) for each parameter required in Section I.4 above. b. Risk Level 2 dischargers shall ensure that all sampling and sample preservation are in accordance with the current edition of "Standard Methods for the Examination of Water and Wastewater" (American Public Health Association). All monitoring instruments and equipment (including a discharger s own field instruments for measuring ph and turbidity) should be calibrated and maintained in accordance with manufacturers' specifications to ensure accurate measurements. Risk Level 2 dischargers shall ensure that all laboratory analyses are conducted according to test procedures under 40 CFR Part 136, unless other test procedures have been specified in this General Permit or by the Regional Water Board. With the exception of field analysis conducted by the discharger for turbidity and ph, all analyses should be sent to and conducted at a laboratory certified for such analyses by the State Department of Health Services. Risk Level 2 dischargers shall conduct their own field analysis of ph and may conduct their own field analysis of turbidity if the discharger has sufficient capability (qualified and trained employees, properly calibrated and maintained field instruments, etc.) to adequately perform the field analysis. 9. Risk Level 2 Analytical Methods a. Risk Level 2 dischargers shall refer to Table 3 below for test methods, detection limits, and reporting units. b. ph: Risk Level 2 dischargers shall perform ph analysis on-site with a calibrated ph meter or a ph test kit. Risk Level 2 dischargers shall record ph monitoring results on paper and retain these records in accordance with Section I.14, below. c. Turbidity: Risk Level 2 dischargers shall perform turbidity analysis using a calibrated turbidity meter (turbidimeter), either on-site or at an accredited lab. Acceptable test methods include Standard Method 2130 or USEPA Method The results will be recorded in the site log book in Nephelometric Turbidity Units (NTU). 10. Risk Level 2 - Non-Storm Water Discharge Monitoring Requirements DWQ amended by DWQ & DWQ 15

93 ATTACHMENT D a. Visual Monitoring Requirements: i. Risk Level 2 dischargers shall visually observe (inspect) each drainage area for the presence of (or indications of prior) unauthorized and authorized non-storm water discharges and their sources. ii. Risk Level 2 dischargers shall conduct one visual observation (inspection) quarterly in each of the following periods: January- March, April-June, July-September, and October-December. Visual observation (inspections) are only required during daylight hours (sunrise to sunset). iii. Risk Level 2 dischargers shall ensure that visual observations (inspections) document the presence or evidence of any nonstorm water discharge (authorized or unauthorized), pollutant characteristics (floating and suspended material, sheen, discoloration, turbidity, odor, etc.), and source. Risk Level 2 dischargers shall maintain on-site records indicating the personnel performing the visual observation (inspections), the dates and approximate time each drainage area and non-storm water discharge was observed, and the response taken to eliminate unauthorized non-storm water discharges and to reduce or prevent pollutants from contacting non-storm water discharges. b. Effluent Sampling Locations: i. Risk Level 2 dischargers shall sample effluent at all discharge points where non-storm water and/or authorized non-storm water is discharged off-site. ii. Risk Level 2 dischargers shall send all non-storm water sample analyses to a laboratory certified for such analyses by the State Department of Health Services. iii. Risk Level 2 dischargers shall monitor and report run-on from surrounding areas if there is reason to believe run-on may contribute to an exceedance of NALs. 11. Risk Level 2 Non-Visible Pollutant Monitoring Requirements a. Risk Level 2 dischargers shall collect one or more samples during any breach, malfunction, leakage, or spill observed during a visual DWQ amended by DWQ & DWQ 16

94 ATTACHMENT D inspection which could result in the discharge of pollutants to surface waters that would not be visually detectable in storm water. b. Risk Level 2 dischargers shall ensure that water samples are large enough to characterize the site conditions. c. Risk Level 2 dischargers shall collect samples at all discharge locations that can be safely accessed. d. Risk Level 2 dischargers shall collect samples during the first two hours of discharge from rain events that occur during business hours and which generate runoff. e. Risk Level 2 dischargers shall analyze samples for all non-visible pollutant parameters (if applicable) - parameters indicating the presence of pollutants identified in the pollutant source assessment required (Risk Level 2 dischargers shall modify their CSMPs to address these additional parameters in accordance with any updated SWPPP pollutant source assessment). f. Risk Level 2 dischargers shall collect a sample of storm water that has not come in contact with the disturbed soil or the materials stored or used on-site (uncontaminated sample) for comparison with the discharge sample. g. Risk Level 2 dischargers shall compare the uncontaminated sample to the samples of discharge using field analysis or through laboratory analysis. 6 h. Risk Level 2 dischargers shall keep all field /or analytical data in the SWPPP document. 12. Risk Level 2 Watershed Monitoring Option Risk Level 2 dischargers who are part of a qualified regional watershed-based monitoring program may be eligible for relief from the requirements in Sections I.5. The Regional Water Board may approve proposals to substitute an acceptable watershed-based monitoring program by determining if the watershed-based monitoring program will provide substantially similar monitoring information in evaluating discharger compliance with the requirements of this General Permit. 6 For laboratory analysis, all sampling, sample preservation, and analyses must be conducted according to test procedures under 40 CFR Part 136. Field discharge samples shall be collected and analyzed according to the specifications of the manufacturer of the sampling devices employed DWQ amended by DWQ & DWQ 17

95 ATTACHMENT D 13. Risk Level 2 Particle Size Analysis for Project Risk Justification Risk Level 2 dischargers justifying an alternative project risk shall report a soil particle size analysis used to determine the RUSLE K-Factor. ASTM D-422 (Standard Test Method for Particle-Size Analysis of Soils), as revised, shall be used to determine the percentages of sand, very fine sand, silt, and clay on the site. 14. Risk Level 2 Records Risk Level 2 dischargers shall retain records of all storm water monitoring information and copies of all reports (including Annual Reports) for a period of at least three years. Risk Level 2 dischargers shall retain all records on-site while construction is ongoing. These records include: a. The date, place, time of facility inspections, sampling, visual observation (inspections), and/or measurements, including precipitation. b. The individual(s) who performed the facility inspections, sampling, visual observation (inspections), and or measurements. c. The date and approximate time of analyses. d. The individual(s) who performed the analyses. e. A summary of all analytical results from the last three years, the method detection limits and reporting units, the analytical techniques or methods used, and the chain of custody forms. f. Rain gauge readings from site inspections; g. Quality assurance/quality control records and results. h. Non-storm water discharge inspections and visual observation (inspections) and storm water discharge visual observation records (see Sections I.3 and I.10 above). i. Visual observation and sample collection exception records (see Section I.6 above). j. The records of any corrective actions and follow-up activities that resulted from analytical results, visual observation (inspections), or inspections DWQ amended by DWQ & DWQ 18

96 ATTACHMENT D 15. Risk Level 2 NAL Exceedance Report a. In the event that any effluent sample exceeds an applicable NAL, Risk Level 2 dischargers shall electronically submit all storm event sampling results to the State Water Board no later than 10 days after the conclusion of the storm event. The Regional Boards have the authority to require the submittal of an NAL Exceedance Report. b. Risk Level 2 dischargers shall certify each NAL Exceedance Report in accordance with the Special Provisions for Construction Activity. c. Risk Level 2 dischargers shall retain an electronic or paper copy of each NAL Exceedance Report for a minimum of three years after the date the annual report is filed. d. Risk Level 2 dischargers shall include in the NAL Exceedance Report: i. The analytical method(s), method reporting unit(s), and method detection limit(s) of each analytical parameter (analytical results that are less than the method detection limit shall be reported as less than the method detection limit ). ii. The date, place, time of sampling, visual observation (inspections), and/or measurements, including precipitation. iii. A description of the current BMPs associated with the effluent sample that exceeded the NAL and the proposed corrective actions taken DWQ amended by DWQ & DWQ 19

97 ATTACHMENT D Table 3 Risk Level 2 Test Methods, Detection Limits, Reporting Units and Applicable NALs/NELs Parameter Test Method / Protocol Discharge Type Reporting Units ph Field test with calibrated portable instrument Risk Level 2 Discharges Min. Detection Limit 0.2 ph units Numeric Action Level lower NAL = 6.5 upper NAL = 8.5 Turbidity EPA and/or field test with calibrated portable instrument Risk Level 2 Discharges other than ATS For ATS discharges 1 NTU 250 NTU 1 NTU N/A DWQ amended by DWQ & DWQ 20

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100 Prepared for Summers Lane Reservoir Construction SWPPP, Fort Bragg, CA Attachment G Program for Maintenance, Inspection, and Repair of Construction Site BMPs The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP BEST MANAGEMENT INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM PRACTICES (BMPs) (all controls) TEMPORARY EROSION CONTROL BMPs EC-1 Scheduling Verify that work is progressing in hour intervals during extended accordance with the schedule. EC-2 Preservation of Existing Vegetation EC-4 Hydroseeding Weekly, prior to rain event, 24-hour intervals during extended rain events, and following a rain event. Weekly during the rainy season Bi-weekly during the non-rainy season (required BMPs only) Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events. Amend the schedule when changes are warranted. Amend the schedule prior to the rainy season to show updated information on the deployment and implementation of construction site BMPs. Inspect protective fencing and repair or replace as necessary. Repair or replace damaged vegetation. Repair damaged roots or compacted soils in the root zone. Inspect hydroseeded areas for failures and re-seed, fertilize and mulch as necessary within the planting season, using not less than half the original application rate. EC-8 Wood Mulch Weekly, prior to rain event, 24-hour Inspect mulch for any damaged areas. intervals during extended rain Reapply mulch to damaged areas as events, and following a rain event. necessary. EC-10 Velocity Dissipation Devices Inspect for displacement, damage or scour. Repair as needed. SE-4 Check Dams SE-5 Fiber Rolls TEMPORARY SEDIMENT CONTROL BMPs Repair any slope damage as soon as weather conditions permit. Weekly, prior to rain event, 24-hour intervals during extended rain events, and following a rain event. Repair or replace split, tom, unraveling, or slumping fiber rolls. Remove retained sediments before they reach 3/4 of the barrier height. Remove BMPs when no longer needed. Repair slopes/surfaces damaged by BMP removal. SE-7 Street Sweeping and Vacuuming Daily Inspect site access points daily Sweep tracked sediment as needed or as required by the Engineer.

101 Attachment G Maintenance, Inspection and Repair Program The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP BEST MANAGEMENT INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM PRACTICES (BMPs) (all controls) SE-10 Storm Drain Inlet Protection Weekly, prior to rain event, 24-hour Remove, dispose, and replace damaged, intervals during extended rain deteriorated, or otherwise unsuitable BMP s events, and following a rain event. Clean and dispose of accumulated sediment around drainage inlets. Remove BMP s when no longer needed. WIND EROSION CONTROL BMPs WE-1 Wind Erosion Control Daily Check applicable areas to ensure proper coverage. TC-2 Stabilized Construction Roadway TRACKING CONTROL BMPs Inspect for damage and repair as needed Weekly, prior to rain event, 24-hour Keep roadway ditches clear TC-3 Entrance/Outlet Tire Wash intervals during extended rain Inspect for damage and repair as needed events, and following a rain event. Remove accumulated sediment in wash rack and/or sediment trap to maintain system performance. NON-STORM WATER MANAGEMENT BMPs NS-1 Water Conservation Practices Weekly Keep watering equipment in good working condition. NS-3 Paving and Grinding Operations NS-6 Illicit Connection/Discharge NS-8 Vehicle and Equipment Cleaning NS-9 Vehicle and Equipment Fueling NS-10 Vehicle and Equipment Maintenance NS-12 Concrete Curing Weekly Inspect and maintain machinery regularly to minimize drips and leaks. Weekly, prior to rain event, 24-hour intervals during extended rain events, and following a rain event. Weekly Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events Weekly Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events. Keep ample supply of drip pans or absorbent material onsite. Inspect site regularly to check for any illegal dumping or discharge. Prohibit employees and subcontractors from disposing or non-job related debris or materials at site. Inspect fueling areas and storage tanks for leaks or spills. Keep an ample supply of spill cleanup materials near designated areas. Personnel in charge of mobile fueling and maintenance shall have ample spill cleanup materials at all times during operations. Inspect and repair damaged hoses and leaky gaskets. Remove vehicles and/or equipment in which leaks cannot be repaired. Replace drip pans or absorbent materials as needed. Ensure that employees and subcontractors implement appriopriate measures for storage, handling, and use of curing compounds. Inspect cure containers and spraying equipment for leaks.

102 Attachment G Maintenance, Inspection and Repair Program The contractor shall use the following guidelines for maintenance, inspection, and repair of BMPs identified in the SWPPP BEST MANAGEMENT INSPECTION FREQUENCY MAINTENANCE/REPAIR PROGRAM PRACTICES (BMPs) (all controls) WM-1 Material Delivery and Storage WASTE MANAGEMENT AND MATERIALS POLLUTION CONTROL BMPs Weekly Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events Keep storage areas clean, well organized, and equipped with ample lean-up supplies as appropriate for the materials stored. Repair or replace perimeter controls, containment structures, covers and liners as needed to maintain proper function and protection. WM-2 Material Use Monitor employees and subcontractors to ensure appropriate practices are being employed. WM-3 Stockpile Management Repair or replace perimeter controls, covers, and/or required stabilization to maintain effectiveness. WM-4 Spill Prevention and Control Repair or replace perimeter controls, covers, and/or required stabilization to maintain effectiveness. WM-5 Solid Waste Management WM-6 Hazardous Waste Management Weekly Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events Police the construction site for litter and debris. Remove solid waste when containment structures are adequately filled or when directed by the Engineer. Keep waste storage areas clean, well organized, and equipped with sufficient clean-up supplies. WM-7 Contaminated Soil Management WM-8 Concrete Waste Management Weekly Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events Weekly Prior to forecast storm After a rain event that causes runoff from the construction site At 24-hour intervals during extended rain events Monitor on-site contaminated soil storage and disposal procedures for proper implementation. Monitor air quality continuously during excavation operations at all locations containing hazardous waste. Coordinate contaminated soils and hazardous substances/waste management with the appropriate federal, state, and local agencies. Inspect hazardous waste receptacles and areas regularly. Monitor on-site concrete waste storage and disposal procedures. Monitor concrete working tasks, such as saw cutting, coring, grinding and grooving daily to ensure proper methods are employed. Remove accumulated debris from concrete washouts when 75% full. Replace lining and sand bags as necessary. Inspect washout facilities for damage (i.e. tears in PVC liner, missing sandbags, etc.). Repair damaged facilities.

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123 Prepared for Summers Lane Reservoir Construction SWPPP, Fort Bragg, CA Attachment L Storm Water Pollution Prevention Plan (SWPPP) and Monitoring Program Checklist CONSTRUCTION PROJECT: Summers Lane Reservoir Construction CONTRACTOR: CONTRACT NO: CHECK IF ADDRESSE D N/A IF NOT APPLICABLE X X X X X X SECTION A: STORM WATER POLLUTION PREVENTION PLAN (SWPPP) SWPPP Section Following Title Page Following Title Page Following Title Page Following Cert. Pages Following Cert. Pages Following Cert. Pages ITEM GENERAL PERMIT REF. SWPPP Certification and Approval C.10 SWPPP Certification C.10 SWPPP Approval C.10 SWPPP Amendments A.4.a, A.16 Amendment number and date entered into SWPPP Amendment Log A.4.a, A.16 Amendment Certification and Approval A.4.a, A.16 X Section 1 Introduction/Project Description X Section 1-1 Project Description and Location (narrative) A.5.a.1 X Section 1-3 Unique Site Features (narrative) A.5.a.1 X Section 1-4 Project Schedule (narrative and graphical) A.5.c.5 X Section 3 References A.14 X Section 4-3 Vicinity Map (narrative or graphic) A.5.a.1 X 4-3, Att. A Site perimeter A.5.a.1 X 4-3, Att. A Geographic Features A.5.a.1 X 4-3, Att. A General topography A.5.a.1 X 4-3, Att. B Water Pollution Control Drawings (WPCDs) (graphic or narrative) A.5.a.2 X 4-3, Att. B Site perimeter A.5.a.2 COMMENTS California Storm Water Quality Handbooks Construction BMP Consideration Checklist January of 5

124 Attachment L SWPPP and Monitoring Program Checklist CHECK IF ADDRESSE D N/A IF NOT APPLICABLE X SECTION A: STORM WATER POLLUTION PREVENTION PLAN (SWPPP) SWPPP Section 4-3, Att. B ITEM Existing and proposed buildings, lots, and roadways GENERAL PERMIT REF. A.5.a.2 X 4-3, Att. B Storm water collection and discharge points A.5.a.2 X 4-3, Att. B General topography before and after construction A.5.a.2 X 4-3, Att. B Anticipated discharge location(s) A.5.a.2 X 4-3, Att. B Drainage patterns including the entire relevant drainage areas A.5.a.2 X 4-3, Att. B Temporary on-site drainage(s) A.5.a.2 X 4-3, Att. B Pollutant Source and BMP Identification (narrate/ or indicate on site map) A.5.b X Att. B Drainage A.5.b.1 X Att. B Drainage patterns after major grading A.5.b.1 X Att. B Slopes after major grading A.5.b.1 X Att. D Calculations for storm water run-on A.5.b.1 N/A Att. B BMPs that divert off-site drainage from passing through site A.5.b.1 X Att. B Storm Water Inlets A.5.b.2 X X 1-3, Att. B Att. B X 1-1, 1-3 X X Att. B & D Att. B Drainage patterns to storm water inlets or receiving water BMPs that protect storm water inlets or receiving water Site History (narrative; if possible, indicate location(s) on the Water Pollution Control Drawings) Nature of fill material and data describing the soil. Description of toxic materials treated, stored, disposed, spilled or leaked on site BMPs that minimize contact of contaminants with storm water Location of Areas Designated for: A.5.b.2 A.5.b.2 A.5.b A.5.b.3 A.5.b.3 A.5.b.4 N/A 4-10 Vehicle storage & service A.5.b.4 N/A 4-10 Equipment storage, cleaning, maintenance A.5.b.4 X 4-10 Soil or waste storage A.5.b.4 X 4-10 X Att. B Construction material loading, unloading, storage and access Areas outside of physical site (yards, borrow areas, etc.) BMP Locations or Descriptions for: A.5.b.4 A.5.b.5 COMMENTS California Storm Water Quality Handbooks Construction 2 of 5 BMP Consideration Checklist

125 Attachment L SWPPP and Monitoring Program Checklist CHECK IF ADDRESSE D N/A IF NOT APPLICABLE SECTION A: STORM WATER POLLUTION PREVENTION PLAN (SWPPP) SWPPP Section ITEM GENERAL PERMIT REF. X 4-10 Waste handling and disposal areas A.5.b.5 X 4-10 X 4-10 On-site storage and disposal of construction materials and waste Minimum exposure of storm water to construction materials, equipment, vehicles, waste A.5.b.5 A.5.b Post Construction BMPs A.5.b.6 X 4-5.4, 4-14 Listing or Description of Post-construction BMPs A.5.b.6 X 4-5.4, Att. B Location of post-construction BMPs A.5.b.6 X 4-14 X 4-5 thru 4-9 Parties responsible for long-term maintenance Additional Information Description of other pollutant sources and BMPs A.5.b.6 A.5.c A.5.c.1 N/A 1-4 Pre-construction control practices A.5.c.1 X 4-4 X 4-5 thru 4-9, Att. B Inventory of materials and activities that may pollute storm water BMPs to reduce/eliminate potential pollutants listed in the inventory A.5.c.2 A.5.c.2 X Att. D Runoff coefficient (before & after) A.5.c.3 X 1-3 Percent impervious (before & after) A.5.c.3 X Att, P Copy of the NOT A.5.c.4 X 1-4 Construction activity schedule A.5.c.5 X X 4-5 Contact List Following Cert. Pages Contact List Following Cert. Pages Contact information SOIL STABILIZATION (EROSION CONTROL) The SWPPP shall include: A.5.c.6 A.6 A.6.a-c X 4-5, Att. B Areas of vegetation on site A.6.a.1 X X Att. B Att. B X 1-4 Areas of soil disturbance that will be stabilized during rainy season Areas of soil disturbance which will be exposed during any part of the rainy season Implementation schedule for erosion control measures A.6.a.2 A.6.a.3 A.6.a.4 X 4-5 BMPs for erosion control A.6.b X 4-8 BMPs to control wind erosion A.6.c COMMENTS California Storm Water Quality Handbooks Construction 3 of 5 BMP Consideration Checklist

126 Attachment L SWPPP and Monitoring Program Checklist CHECK IF ADDRESSE D N/A IF NOT APPLICABLE SECTION A: STORM WATER POLLUTION PREVENTION PLAN (SWPPP) SWPPP Section ITEM GENERAL PERMIT REF. X 4-6, Att. Q SEDIMENT CONTROL A.8 X X 4-6, Att. Q 4-6, Att. Q Description/Illustration of BMPs to prevent increase of sediment load in discharge Implementation schedule for sediment control measures X 4-6, Att. Q BMPs to control sediment tracking A.8 X 4-9 NON-STORM WATER MANAGEMENT A.9 X 4-9 Description of non-storm water discharges to receiving waters X 4-13, Att. B Locations of discharges A.9 X 4-9 Description of BMPs A.9 X Contact List Following Cert. Pages Name and phone number of person responsible for non-storm water management X 4-14 POST-CONSTRUCTION A.10 X 4-14 Description of post-construction BMPs A.10 X X 4-12 X X Contact List Following Cert. Pages 4-13, Att. J Operation/Maintenance of BMPs after project completion (including short-term funding, long-term funding and responsible party) MAINTENANCE, INSPECTIONS, AND REPAIR Name and phone number of person(s) responsible for inspections Complete inspection checklist: date, weather, inadequate BMPs, visual observations of BMPs, corrective action, inspector s name, title, signature OTHER REQUIREMENTS A.8 A.8 A.9 A.9 A.10 A.11 A.11 A.11.a-f A X 4-15 Documentation of all training A.12 X 4-16, Att. U List of Contractors/Subcontractors A.13 COMMENTS CHECK IF ADDRESSED N/A IF NOT APPLICABLE X SECTION B: MONITORING AND REPORTING REQUIREMENTS SWPPP Section 4-13, SEC.5 ITEM GENERAL PERMIT REF. Description of Site Inspection Plans B.3 X 2-1, Att. M Compliance certification (annually 7/1) B.4 COMMENTS California Storm Water Quality Handbooks Construction 4 of 5 BMP Consideration Checklist

127 Attachment L SWPPP and Monitoring Program Checklist CHECK IF ADDRESSED N/A IF NOT APPLICABLE SECTION B: MONITORING AND REPORTING REQUIREMENTS SWPPP Section ITEM GENERAL PERMIT REF. X 5-5.4, 5-6 Discharge reporting B.5 X 5-7 Keep records of all inspections, compliance certifications, and noncompliance reports on site for a period of at least three years X 5-5 Sampling and Analysis Plan for Sediment B.7 X Sampling and Analysis Plan for Non-Visible Pollutants B.6 B.8 COMMENTS CHECK IF ADDRESSED N/A IF NOT APPLICABLE X SECTION C: STANDARD PROVISIONS FOR CONSTRUCTION ACTIVITIES SWPPP Section Following Title Page ITEM Signed SWPPP Certification GENERAL PERMIT REF. C.9,10 COMMENTS California Storm Water Quality Handbooks Construction 5 of 5 BMP Consideration Checklist

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132 City of Fort Bragg Summers Lane Reservoir Construction SWPPP February 2016 Water Pollution Control Cost Breakdown Item Description Unit Qnty $/Unit Total DC-WE-1 Dust Control LS 20 $500 $10,000 VTC- TC-2, TC-3 Vehicle Tracking Pad LS 1 $1000 $1,000 SW-SE-5 Straw Wattle LF 4,000 $4 $16,000 PS-EC-4 Permanent Seeding LS 50 $250 $12,500 WM-EC-8 Wood Mulching LS 50 $500 $25,000 GM-EC-7 Jute Netting (Geotextile Matting) SF 36,000 $0.25 $9,000 SSV-SE-7 Road Sweeping LS 40 $200 $8,000 IP-SE-10 Inlet Protection LS 20 $100 $2,000 TP-EC-2 Tree Preservation LS 20 $100 $2,000 RR-EC-10 Rip Rap LS 10 $1,000 $10,000 Total $95,500

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291 ATTACHMENT R Sampling Activity Log and Chain of Custody Form

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