Draft_SWPPP.pdf

Storm Water Pollution Prevention Plan for the Truckee River Bridge Project

Prepared For:

U.S. Department of Transportation, Federal Highway Administration, Central Federal Lands Highway Division, Denver, Colorado

March 2016

Prepared by:

Linda Collela Qualified SWPPP Developer (QSD)

Estimated Project Dates:

Start of Construction: July 2016

Construction Completion: October 2018

Contents Contents

Contents

Acronyms and Abbreviations

Introduction and Certifications SWPPP Objectives SWPPP Implementation Schedule Permit Registration Documents

Permit Coverage Termination Certification and Training Requirements Contractor List Emergency contact person and 24-hour phone number SWPPP Availability and Public Records Access Required Changes

Project Information Project Description, site address and driving directions Waste Discharger Identification Construction Schedule Potential Construction Site Pollutants of Concern and Sources Site Location Map(s)

Best Management Practices Site Management Narrative Sediment and Erosion/Stabilization Control Narrative

Silt Fence Inlet Protection Temporary Drainage Swales Check Dams Stabilized Construction Exit Fiber Rolls Erosion Control Blankets Natural Buffers Minimize Ground Compaction and Disturbed Areas Stabilization

Non-Stormwater and Material Management Narrative Material Management – Storage and Material Handling Areas Material Use Vehicle and Equipment Management Concrete Waste Management Spill Prevention and Control Cleanup Response Procedures Solid Waste Management Sanitary Waste Management Dust Control

Stockpile Management Good Housekeeping Preventative Maintenance

Dewatering and Diversions Plan Narrative Active Treatment System Plan Narrative Post-Construction Stormwater Management Measures Narrative Schedule for BMP Implementation BMP and Disturbed Soil Area (DSA) maps

BMP Inspection, Maintenance, and Rain Event Action Plans BMP Inspection and Maintenance Narrative Rain Event Action Plan Narrative

Construction Site Monitoring and Reporting Plan (CSMRP) Purpose Visual Monitoring (Inspections) Water Quality Sampling and Analysis

Non-Visible Pollutants Sampling Frequency and Required Analyses

Watershed Monitoring Option Quality Assurance and Quality Control Reporting Requirements and Records Retention Non-Compliance Reporting Annual Report Final Report QSD Certification

Tables

Table 1 – Potential Pollutants and Activities Table 2 – Non-Visible Pollutants

Table 3 – Monitoring Requirements

Appendices

A. Construction Schedule

B. Notice of Intent C. Contractor/Subcontractor List D. SWPPP Amendment Log Form E. General Permit

F. Drawings G. BMP Standard Specifications H. Visual Monitoring/BMP Inspection Forms and Checklist Templates I. Rain Event Action Plan Template

Acronyms and Abbreviations

BAT best available technology economically achievable

BCT best conventional pollutant control technology

BMP best management practice

CAL OES California Office of Emergency Response Services

Caltrans California Department of Transportation

CSMRP Construction Site Monitoring and Reporting Plan

CWA Clean Water Act

DNQ detected, but not quantified

DSA disturbed soil areas

EPA United States Environmental Protection Agency

FWPCA Federal Water Pollution Control Act

General Permit General Waste Discharge Requirements and National Pollutant Discharge Elimination System Permit for Storm Water Discharges Associated with Construction Activity in the Lake Tahoe Hydrologic Unit, Counties of Alpine, El Dorado, and Placer

Lahontan Water Board California Regional Water Quality Control Board, Lahontan Region

LRP legally responsible person

MDL method detection limit mg/l milligrams per liter

ML minimum level

MS4 Municipal Separate Storm Sewer System

NEL numeric effluent limitation

NOI notice of intent

NRC National Response Center

NTU nephelometric turbidity unit

NWS National Weather Service

PRDs permit registration documents

QSD Qualified SWPPP Developer

QSP Qualified SWPPP Practitioner

REAP Rain Event Action Plan

RL reporting limit

SGT silica gel treatment

SU standard units

SWPPP storm water pollution prevention plan

TRPA Tahoe Regional Planning Agency

WDID waste discharger identification

WQA Water Quality Act

Introduction and Certifications In 1972, Congress passed the Federal Water Pollution Control Act (FWPCA), also known as the Clean Water Act (CWA), to restore and maintain the quality of the nation’s waterways. The ultimate goal was to make sure rivers and streams were fishable, swimmable, and drinkable. In 1987, the Water Quality Act (WQA) added provisions to the CWA that allowed the United States Environmental Protection Agency (EPA) to govern storm water discharges from construction sites. As modified February 16, 2012, EPA published an updated General Permit for Storm Water Discharges from Construction Activities. With the exception of Indian country, the State of California is the permitting authority, which has been further delegated to the Regional Water Quality Control Boards. This project is located with the authority of the California Regional Water Quality Control Board, Lahontan Region (Lahontan Water Board). The Lahontan Water Board issued the General Waste Discharge Requirements and National Pollutant Discharge Elimination System Permit for Storm Water Discharges Associated with Construction Activity in the Lake Tahoe Hydrologic Unit, Counties of Alpine, El Dorado, and Placer (General Permit). The General Permit includes the requirement to development a storm water pollution prevention plan (SWPPP) to maximize the potential benefits of pollution prevention and sediment and erosion control measures at construction sites.

This SWPPP follows the suggested format presented in Appendix I of the General Permit.

Construction site best management practices (BMPs) follow the latest edition of the Caltrans Storm Water Quality Handbooks: Construction Site BMPs Manual and the Lake Tahoe BMP Handbook to control and minimize the impacts of construction-related activities, materials, and pollutants on the watershed. Select BMP sheets from the Lake Tahoe BMP Handbook are included as an appendix, however, both BMP manuals shall be used.

The Risk Level for this project was calculated using the

SWPPP Objectives This SWPPP has been developed to meet the following objectives:

1. Identify pollutant sources including sediment sources that may affect the quality of storm water discharges associated with construction activity.

2. Identify non-storm water discharges.

3. Identify, construct, implement, and maintain BMPs to reduce or eliminate pollutants in storm water discharges and authorized non storm water discharges from the construction site.

4. Identify all effluent discharge outfall locations, sampling and analysis strategy and protocols, and a sampling schedule for discharges from the identified outfalls for the project area.

SWPPP Implementation Schedule The estimated construction and BMP implementation schedule is presented in detail in Appendix A.

This schedule includes the estimate start and end dates of construction, phases of significant grading work, work in or near drainages or receiving waters, and BMP installation. BMPs will be implemented for each phase of work prior to implementation of land disturbing activities.

Permit Registration Documents As required, this SWPPP includes a copy of the Notice of Intent (NOI), presented in Appendix B.

The Permit Registration Documents (PRDs) will be submitted electronically through the State Water Resources Control Board’s (State Water Board’s) Storm Water Multi-Application and Report Tracking System (SMARTS) at: https://smarts.waterboards.ca.gov/smarts/faces/SwSmartsLogin.jsp.

PRDs will include:

1. Notice of Intent

2. Risk Assessment (Standard or Site Specific)

3. Site Map

4. SWPPP

5. Annual Fee

6. Certification

Permit Coverage Termination When construction is complete and the lands have been stabilized from erosion, the discharger shall electronically file a Notice of Termination (NOT), a final site map, and photos through the State Water Board’s SMARTS as a request to terminate permit coverage. The discharger shall certify through the filing that all General Permit requirements have been met including final stabilization conditions.

Prior to the termination of coverage under this General Permit, the following conditions must be met:

• The construction project is complete and there is no potential for construction related storm water pollution or pollutant discharges.

• All construction materials and waste have been removed from the project site and disposed of properly.

• All elements of the SWPPP have been completed.

• Permanent BMPs have been installed and all disturbed soil areas are stabilized to prevent and control erosion.

• For stabilization measures that will mature over time (e.g., cut and fill slopes or other mass graded areas that are mulched and seeded), the discharger shall demonstrate that the site will not pose any additional sediment discharge risk than it did prior to the commencement of construction. This condition shall be demonstrated by:

o Modeling results using the Revised Universal Soil Loss Equation (RUSLE) or RUSLE2 (detailed information may be found at the USDA website http://www.ars.usda.gov/Research/docs.htm?docid=5971), including computational proof or o Site-specific evaluation of stability, with consideration of parameters such as percent total cover, percent vegetative cover, vegetation type, soil nutrient and organic matter content, and soil infiltration rate.

https://smarts.waterboards.ca.gov/smarts/faces/SwSmartsLogin.jsp o For these areas, the discharger shall also certify that a plan is in place to monitor and maintain such measures until they are self-sustaining.

• Information required in the Monitoring and Reporting Program has been submitted.

• Lahontan Water Board staff has inspected the site, if necessary.

Certification and Training Requirements The persons responsible for developing and implementing storm water pollution controls will be appropriately trained and certified in accordance with the Permit requirements as described below.

Additionally, project SWPPP requirements will be communicated to all contractor and subcontractor personnel conducting activities that could affect storm water runoff quality. Training may be both formal and informal, as appropriate, and shall at a minimum be provided during pre-construction meetings and regular tailgate meetings conducted during the course of the project.

As required, documentation of the required qualifications and training will be provided in the Annual Report for persons responsible for implementing the requirements of this General Permit.

Required training/certification includes:

• The SWPPP Developer must be a Qualified SWPPP Developer (QSD)

• All BMPs required by this General Permit are implemented by a Qualified SWPPP

Practitioner (QSP).

• The QSD and QSP must have attended a State Water Board-sponsored or -approved QSD training course and pass a required examination covering the course material.

Contractor List The SWPPP will contain a list of all contractors and subcontractors responsible for implementing the SWPPP in Appendix D. This information will be added as contractors/subcontractors are selected to implement the SWPPP.

Emergency contact person and 24-hour phone number The Emergency Contact person for the project is:

Name/Title: <<enter>>

24-hour Phone Number: <<enter>>

Addition Contact information:

Legally responsible person: <<enter>>

QSD: <<enter>>

QSP: <<enter>>

SWPPP Availability and Public Records Access The SWPPP and any amendments must be kept on site during construction activity and made available upon request of a representative of the Regional Water Board or any local storm water management agency which receives the storm water discharge.

Comment [CL1]: Contractor to add

Comment [CL2]: Contractor to add

The SWPPP is considered a report that shall be available to the public under Section 308(b) of the CWA. Upon request by members of the public, the discharger shall make available for review a copy of the SWPPP directly to the requestor.

Required Changes The SWPPP will be amended under any of the following conditions:

1. Whenever there is a change in construction, or operations, which may affect the discharge or pollutants to surface waters, ground waters, or a municipal storm drain system. Note that the Lahontan Water Board may require SWPPP amendments be submitted for review and may require modifications.

2. As needed such that it reflects the actual site conditions for the duration of the project, including keeping disturbed soil areas (DSA) maps current as the project progresses.

Changes in BMP implementation features or activities shall be documented and included as amendments to the SWPPP.

3. Lahontan Water Board staff, or a local agency with the concurrence of the Lahontan Water Board staff, may require the discharger to amend the SWPPP if it is in violation of any condition of the General Permit.

An amendment log will be maintained in the SWPPP (Appendix D) that summarizes all changes to the SWPPP for the duration of the project.

Project Information This project follows the requirements of the General Permit, which can be found in Appendix E.

Project Description, site address and driving directions The linear roadway project is designed to address the seasonal traffic congestion and safety concerns along SR 89 and in the area of the SR 28/West Lake Boulevard interchange and the deterioration of Fanny Bridge.

SR 89 will be realigned as a new two-lane segment of roadway that will cross through a 64 acre parcel owned by the US Forest Service. The western end will be constructed as a new single-lane roundabout, which will serve as the new SR 89/SR 28 intersection. A new bridge over the Truckee River will be constructed immediately to the southeast of the roundabout on the realigned highway segment. The new alignment will continue east and reconnect to existing SR 89 at a second roundabout near the existing changeable message sign and sled hill. The realigned portion of SR 89 will be elevated on an earthen embankment. Slopes of the embankment will be designed and revegetated to blend it into the surrounding forest. Fanny Bridge will be rehabilitated or replaced to address its long-term structural integrity and safety issues. The existing section of SR 89 between Fanny Bridge and the eastern roundabout will be relinquished by the state to Placer County and become a local street.

As a linear project, there is no site address. As described above, the work will be conducted along SR 89 and in the area of the SR 28/West Lake Boulevard intersection. The approximate project coordinates for the center of each segment are:

Latitude: 39.167621 Longitude: -120.145079

Latitude: 39.164261 Longitude: -120.148898

Latitude: 39.162963 Longitude: -120.144435

To access the project area, take SR 89 as well as SR 28/West Lake Boulevard Located in Tahoe City, CA.

Waste Discharger Identification The Waste Discharger Identification (WDID) code issued for this project is <<enter>>.

Construction Schedule A construction schedule can be found in Appendix A, which notes grading activities. The estimated schedule occurs between the allowable dates in the General Permit of May 1 to October 15.

Note that the removal of vegetation or disturbance of ground surface conditions between October 15 and May 1 is prohibited unless an exception has been approved in writing by the Executive Officer.

Potential Construction Site Pollutants of Concern and Sources Potential pollutant generating activities and the pollutants associated with each are shown in Table 1.

Table 1 – Potential Pollutants and Activities

Pollutant-Generating Activity Pollutants or Pollutant Constituents

(that could be discharged if exposed to stormwater)

Location on Site

(or reference SWPPP site map where this is shown)

Clearing and grubbing Sediment Entire length of alignment

Grading Sediment Entire length of alignment

Excavating Sediment Entire length of alignment

Exposed soil Sediment Entire length of alignment

Off-site tracking Sediment Construction entrance/exit

Paving operations Asphalt, oils Entire length of alignment

Striping operations Paint Entire length of alignment

Fuel and oïl storage and handling Gasoline, diesel, motor oil, hydraulic fluid Staging area(s)

Heavy equipment staging Fuel and oil Staging area(s)

Waste storage and handling Solid waste, sanitary waste (fecal coliform) Staging area(s)

Material storage and handling Pesticides, fertilizers, antifreeze, Staging area(s)

Pollutant-Generating Activity Pollutants or Pollutant Constituents

(that could be discharged if exposed to stormwater)

Location on Site

(or reference SWPPP site map where this is shown) coolant

Asphalt batch plant (use unknown at this time) OR

Concrete batch plant (use unknown at this time)

Asphalt, petroleum products used in the asphalt

Portland cement, stabilizers, curing compounds, other additives

To be noted if used

Site Location Map(s) Drawings for this project area including in Appendix F. These drawings include the following required maps and map elements:

Project Location Map: A topographic map extending one-quarter mile beyond the property boundaries of the construction site, clearly showing: the construction site perimeter and surface water boundaries (including drainage channels, springs, SEZs, 100-year floodplain areas, and wetlands), and the designated discharge locations where the effluent will be controlled and monitored. The requirements of this paragraph may be included in the site map required under the following paragraph if appropriate.

Map(s) of a scale no smaller than 1 inch equals 50 feet (1:600), showing:

• The project's construction limit boundaries;

• Areas used to store construction materials, equipment, stockpiles, spoils and wastes, including concrete mixing and washout areas;

• Vehicle and equipment access, fueling, cleaning, storage and service areas;

• Existing and planned paved areas and buildings;

• Areas of existing vegetation to be preserved;

• Surface water locations, including SEZ boundaries mapped according to the criteria in the

Lahontan Basin Plan, section 5.7; 100-year floodplain boundaries; ephemeral and intermittent waterways, springs, and wetlands;

• BMPs: Specific locations of storm water structures and controls used during construction as required by section VIII.C.3 of this Permit. Each control structure shall be represented by a standard symbol as indicated in the site map legend;

• Existing or pre-construction storm water structures and controls to reduce sediment and other pollutants in storm water discharge;

• DSAs: All active DSAs shall be delineated on a map as the project progresses. DSA maps must be kept updated to reflect site conditions.

• Once an area is stabilized or winterized, it should be hatched out or otherwise notated to indicate it is no longer disturbed;

• Drainage patterns and slopes anticipated after major grading activities;

• Post-construction storm water structures and controls;

• The locations designated for storm water discharge sampling. See Attachment C for additional detail regarding sampling requirements.

Comment [CL3]: Contractor to update as appropriate with specific details

Comment [CL4]: Contractor to add information to the Drawings as needed to meet these requirements.

Comment [HC5]: We can use the 100% plans as of 4/15.

Information shown on all maps must be legible (i.e., avoid showing too much information on one map). All maps must include a north arrow, scale (either bar or text format), and a legend with symbols legible in black and white print for all required information. Standard symbols for pollution control structures must be included in the legend of applicable maps.

Best Management Practices Site Management Narrative As described in this section, controls, structures, and management practices will be used to minimize or prevent pollutants in storm water discharges and authorized non-storm water discharges that achieve best available technology economically achievable (BAT) for toxic and non-conventional pollutants and best conventional pollutant control technology (BCT) for conventional pollutants. These controls are designed to control storm water volume and velocity within the site to minimize soil erosion and offsite discharge. They are also designed to direct run-on from offsite away from all disturbed areas and control surface flows to prevent downstream erosion at any point, to the maximum extent possible.

An inventory was conducted to develop a list of the products used and/or expected to be used as well as to identify potential pollutant sources and areas of the site where BMPs are necessary to reduce or prevent pollutants in storm water discharges. The BMPs selected and described further in the following subsections considered the following:

• The quantity, physical characteristics and locations of each potential pollutant source handled, produced, stored, recycled, or disposed of at the site,

• The degree to which pollutants associated with those materials may be exposed to and mobilized by contact with storm water, and

• The direct and indirect pathways that pollutants may be exposed to storm water or authorized non-storm water discharges, including an assessment of past spills or leaks, non-storm water discharges, and discharges from adjoining areas.

Sediment and Erosion/Stabilization Control Narrative This section describes the structural controls and management practices that will be used to minimize erosions and prevent sediment-laden water from leaving the project area.

Silt Fence Silt fence is used to filter sheet flow, where is intercepts sediment from disturbed areas during construction operations. Silt fence will be used along the toe of fills and as a perimeter control. A specification can be found on Sheet E8 in the Drawings in Appendix F.

Inlet Protection Drop inlets will be protected by placing a barrier across, around, or in a storm drain drop inlet, curb inlet, or culvert inlet. Options for inlet protection include sediment logs, prefabricated inserts, gravel bag berms, or black and gravel. The type will be chosen based on field conditions. Specifications for these can be found on Sheets E9-E10 in the Drawings in Appendix F.

Temporary Drainage Swales Temporary drainage swales may be used to convey surface runoff in a non-erosive manner downstream. If these are used, the BMP in Appendix G will be followed.

Check Dams Check dams will be constructed across swales or drainage ditches where it is necessary to reduce the velocity of concentrated storm water flows to non-erosive velocities, and to detain water and retain sediment. Options for check dams include fiber rolls, rip rap, and gravel bags. The type will be chosen based on field conditions. Specifications for these can be found on Sheet E11 in the Drawings in Appendix F. Additional information can be found on the BMP regarding check dams which is presented in Appendix G.

Stabilized Construction Exit In each segment, a stabilized construction entrance/exit will be placed for the construction area and staging area. Temporary plastic fencing will be placed as required to limit the entrance/exits points to the construction area. Stabilized construction exits are a temporary feature used to reduce the amount of mud tracked onto adjacent roads and paved public ways by vehicles or runoff leaving the construction site. A specifications can be found on Sheet E12 in the Drawings in Appendix F.

Additional information can be found on the BMP regarding construction exits which is presented in Appendix G.

Fiber Rolls Fiber rolls may be used in a variety of locations to filter sediment-laden runoff. During this project, fiber rolls may be used on slopes, as perimeter control, and as culvert inlet protection as shown on Sheet E13 in the Drawings in Appendix F. Additional information can be found on the BMP regarding fiber rolls which is presented in Appendix G.

Erosion Control Blankets Erosion control blanket systems may be used to protect soil against wind and water or to stabilize disturbed soil areas and retain soil moisture, thereby improving conditions for seed germination and vegetation establishment. They may also be used for drainage ways, stream banks, swales, basins and behind rock slope protection; protection for stream banks, outfalls and spillways, and/or for temporary use during inactive periods. Additional information can be found on the presented in Appendix G.

Natural Buffers Natural buffers will be provided and maintained around surface waters and direct storm water runoff to vegetated areas, where feasible. A 404 Permit and 401 Water Quality Certification are being obtained for the site and the conditions of these will be followed during the project.

Minimize Ground Compaction and Disturbed Areas Work will be performed so as to minimize the amount of disturbed area exposed at one time. Work on some segments may occur concurrently.

Additionally, the limits of construction have been defined such that disturbed areas will be minimized and existing vegetation will be preserved to the maximum extent practical. The BMP regarding preserving natural vegetation is presented in Appendix G.

Ground compaction and disturbance activities in unpaved areas not subject to construction will be prevented. All non-construction areas shall be protected be identified and protected by fencing or other means to limit access. These control measures shall be inspected periodically and shall be repaired when necessary to maintain effectiveness.

Top soil will be preserved wherever possible.

Stabilization By October 15 of each year, all disturbed areas must be permanently stabilized or temporarily winterized. Winterized means to implement appropriate BMPs to prevent and minimize erosion and soil movement from the site in storm water in a manner that will remain effective until May 1 of the following year.

Finished graded areas will be permanently stabilized from erosion or revegetated as noted in the Drawings in Appendix F. Mulch may be added during stabilization to restore soil infiltration function.

Non-Stormwater and Material Management Narrative Several BMPs have been selected for use during this project to address potential storm water contamination from leaks or spills and from the storage and handling of materials. Each BMP will be put in place and/or utilized as needed through the project duration. Protective measures shall be in place at all times and BMP procedures shall be followed at all times throughout the project duration to prevent or mitigate pollution. The BMPs are described in the following subsections.

Authorized non-storm water discharges expected during construction activities include water to control dust.

Material Management – Storage and Material Handling Areas These practices are to be implemented for the proper handling and storage of materials in order to prevent spills or leaks into the storm water. These practices are to be implemented in all areas where delivery and storage of materials may be detrimental to the environment.

• Fuel shall be stored in a bermed area in containers compatible with the fuel stored.

• Other vehicle maintenance liquids (antifreeze, motor oil, hydraulic fluid, etc.) shall be stored either indoors or in bermed areas in containers compatible with the material stored.

• Chemicals will be stored in watertight containers with appropriate secondary containment to prevent any spillage or leakage, and protect from precipitation and surface run-on

• Paints and solvents shall be stored in appropriate fireproof lockers in containers compatible with the material stored.

• Concrete raw materials and other additives will be stored in a covered area.

• Safety data sheets (SDS) shall be made available for all materials.

• Personnel shall be trained in proper material handling and storage techniques.

• Sufficient separation shall be allowed between storage containers to allow for cleanup and emergency response.

• Chemically incompatible materials shall not be stored together or in the same storage facility.

• All containers and materials shall be properly and legibly labeled.

• Hazardous material storage and handling shall comply with applicable regulations and requirements.

• Leaks or spills shall be contained and cleaned up immediately.

Material Use These practices are implemented to ensure minimal water quality impacts from the use of construction materials. The contractor is responsible for identifying proper material use measures for all materials used at constructions site projects.

• SDSs shall be made available for all materials.

• Original labels shall not be removed. Materials shall be re-labeled properly to maintain current, legible labels with proper safety and disposal information.

• Less hazardous, recycled, or non-toxic materials shall be used whenever possible.

• Used and excess materials shall be recycled and/or properly disposed of.

• Materials shall be used only where and when necessary to complete the construction activity.

Excess application of materials shall be avoided.

• Non-hazardous wastes, such as used aqueous cleaning solutions and contaminated turbine oils, shall be handled by properly licensed contractors and disposed of according to applicable regulations.

• Hazardous wastes, such as used solvents and contaminated fuels, shall be handled by properly licensed contractors and disposed of according to applicable regulations.

Vehicle and Equipment Management These practices are to be used during vehicle and equipment staging, fueling, cleaning, and maintenance to prevent associated storm water pollutants from entering storm water. This BMP applies to facilities or designated construction work areas where vehicles and equipment are staged, fueled, cleaned, or maintained. A BMP for vehicle washing is presented in Appendix G. The EPA BMP for vehicle maintenance and washing is also presented in Appendix G.

• Perform cleaning, washing, and maintenance in a centralized station offsite where possible, or specifically designated onsite areas.

• Designated onsite stations should preferably be located indoors on impervious surfaces where possible.

• Use drip pans or absorbent materials under equipment to catch/contain leaks.

• Eliminate or reduce the amount of toxic or hazardous solvent used where possible.

• Detergents may not be used for vehicle washing.

• Use proper waste or recycling drums for used or spilled fluids; separate and recycle materials when possible.

• Avoid hosing down work stations.

• Routinely check vehicles and equipment for leaking oil or fluids.

• Proper spill and illicit discharge reporting and cleanup procedures shall be followed for both hazardous and non-hazardous materials.

Concrete Waste Management These practices are to be used in order to minimize and prevent concrete waste associated with construction activities from entering storm drains and water courses. This BMP applies to facilities or designated construction work areas where concrete waste is generated from demolition activities;

where concrete is used as a construction material; where concrete trucks or concrete-coated equipment are washed on site; where slurries containing Portland cement concrete or asphalt concrete area generated; and where mortar-mixing areas exist. The BMP is presented in Appendix G.

• Waste generated from concrete activities shall not be allowed to flow into drainage ways, inlets, or receiving waters. Concrete waste shall be placed in a temporary concrete washout facility.

• To prevent discharge into the underlying soil and onto the surrounding areas, concrete washout facilities will be comprised of a lined excavation with erosion bales and construction fences along the perimeter (see Concrete Management BMP in Appendix G). The bottom of the excavation must be lined with either a clay or synthetic liner that is designed to control seepage.

• The facilities shall be maintained in good condition to contain all liquid and concrete waste generated by operations at a project site.

• Proper signage such as “Concrete Washout” shall be placed near concrete washout facilities to inform construction personnel of the location of designated concrete washout facilities.

• Temporary concrete washout facilities shall be located 50 horizontal feet from drainage ways, inlets, and receiving waters unless otherwise approved by the engineer.

• Adding solvents, flocculents, or acid to washwater is prohibited.

• Whenever a concrete washout area is within 300 feet of the access to a road or highway, a stabilized construction entrance must be built as part of the washout, or at the entrance to the road or highway.

• Hardened concrete waste shall be properly disposed of following solid waste management procedures (See Solid Waste Management section below).

• Removal of temporary facilities, including the solid concrete waste and the material used to construct the facilities, shall be the responsibility of the contractor, who shall remove the waste from the project site and dispose of it properly following guidelines outlined in solid waste management (See Solid Waste Management section below) and any applicable regulations.

• The contractor shall monitor concrete activities working tasks weekly to ensure proper waste management techniques are being utilized.

• Regular maintenance of temporary concrete washout facilities shall include removing hardened concrete and proper disposal. It is recommended that facilities be cleaned out once they are 75 percent full, or new facilities shall be constructed to provide additional concrete waste storage.

Spill Prevention and Control These practices are implemented to prevent and control spills to ensure that spills and leaks do not result in water quality impacts. This BMP applies to all construction activities. Spill prevention and control measures shall be implemented any time chemicals or hazardous substances are used, stored, or handled. A Spill Prevention, Control, and Countermeasures Plan will be developed for this facility and its requirements are incorporated herein.

• Project areas and activities potentially susceptible to spills shall be identified. Areas and activities that are most vulnerable to spills include: loading and unloading areas, fuel and chemical storage areas, process activities, dust or particulate generating processes, and waste disposal activities.

• Spills shall be contained and cleaned up as soon as possible.

• If complete cleanup is not immediately possible, then spills shall be fully covered and not exposed to rainfall.

• Spills shall not be washed down or buried.

• Residuals left over from the cleanup activity such as absorbent pads or containers of spill material shall be disposed of properly.

• Proper spill and illicit discharge reporting procedures shall be followed for both hazardous and non-hazardous materials.

• An area where a spill has occurred shall be inspected to verify that spill residuals are not present after the initial cleaning and that the area does not need to be re-cleaned.

• Emergency phone numbers shall be posted at the construction area.

• Personnel shall be trained in emergency response procedures.

• Proper notification of regulatory agencies shall occur in the event of a reportable spill.

Cleanup Response Procedures Prior to commencement of construction activities, a spill response plan will developed. In addition to the items described in detail in this section, the plan shall include:

• Descriptions of equipment and materials required to be on site for cleanup of spills/leaks, and

• Descriptions of appropriate spill response procedures, the responsible personnel, and the training records of such personnel.

Response guidelines have been identified below for responding to spills that may potentially result in an illicit discharge. It is the contractor’s responsibility to have all emergency phone numbers available at the construction site as well to notify the proper response agencies in a timely manner. It is also the contractor’s responsibility to ensure timely and proper cleanup of any spill.

For non–hazardous materials such as gasoline, paint, or oil that may be spilled in small quantities which do not enter state waters or pose a potential to do so, the following measures shall be implemented:

• Use absorbent materials to contain spills and clean the area of residuals

• Dispose of the absorbent material properly

• Do not hose down spill area with water

For non-hazardous materials that qualify as a significant spill (i.e., greater than the reportable quantity) or spills of any size that enter state waters or have the potential to do so, the following measures shall be implemented:

• Report the spill to the SWPPP Coordinator or his designee.

• The SWPPP Coordinator or his designee shall immediately contact (within 15 minutes of discovery) o National Response Center: 800-424-8802 o California Emergency Management Agency (CAL OES) - (800) 852-7550 or (916) 262-1621. A written notification is necessary within 10 days.

o EPA Region 9 24-hour Hotline at (800) 300-2193 within 24 hours of the spill event. A written notification is necessary within 5 days.

• Cleanup spill immediately. Use absorbent materials if the material is on an impermeable surface. Construct an earthen dike to contain a spill on dirt areas. If rainfall is present at the time of the spill, cover the spill with a tarp to prevent contaminating runoff.

For spills involving hazardous materials, the following measures shall be implemented:

• Report the spill to the SWPPP Coordinator or his designee

• The SWPPP Coordinator or his designee shall immediately contact (within 15 minutes of discovery) o Contact the local emergency response team by dialing 911.

o National Response Center: 800-424-8802 o California Emergency Management Agency (CAL OES) - (800) 852-7550 or (916) 262-1621 A written notification is necessary within 10 days.

o EPA Region 9 24-hour Hotline at (800) 300-2193 within 24 hours of the spill event. A written notification is necessary within 5 days.

• Cleanup spill immediately; a licensed contractor or HazMat team shall be used to properly clean up spills.

Solid Waste Management These practices are to be used in order to minimize and prevent solid waste associated with construction activities from entering storm water. This applies to facilities or designated construction work areas where solid waste is generated. Solid waste can be classified as non-hazardous solid material including: concrete, rock, debris, soil, wood, plastic, fabrics, mortar, metal scraps, styrofoam, and general litter created by the public, such as but not limited to beverage containers and plastic wrappers.

Waste Management BMPs are presented in Appendix G.

• Litter shall be minimized in all construction areas and collected on a regular basis into water-tight dumpsters. Trash receptacles shall be provided in various locations within the construction site boundaries. Collected trash shall not be placed near drainage inlets or watercourses. A trash hauling contractor shall be used to properly dispose of the collected waste in a timely manner.

Dumpster washout at the construction site is not permissible.

• Waste disposal containers will be covered at the end of every business day and during a rain event.

• Storage areas for solid waste shall be located at least 50 feet from drainage ways and watercourses, and shall not be located in areas susceptible to frequent flooding. Sediment barriers such as berms, dikes, or other temporary diversion structures shall be used to prevent storm water runoff from contacting stored solid waste at the project site.

• Solid waste shall be segregated properly into various categories for recycling or disposal. Proper disposal is required for each waste category.

• The contractor shall make every attempt to recycle useful vegetation, packaging material, and surplus construction materials when practical. Most construction materials can be recycled at recycling facilities.

• Disposal options for hardened concrete are as follows:

o Bury on site with a minimum of 2 feet of cover over the concrete. If concrete is buried on site, records shall be kept of the type, quantity, and location of concrete.

o Remove from site and dispose of at a C&D Landfill.

Sanitary Waste Management These practices to be used in order to minimize and prevent sanitary and septic waste associated with construction activities from entering storm water. This BMP applies to facilities or designated construction work areas that use temporary or portable sanitary and septic waste systems.

• Sanitary wastes will be stored in individual portable san-o-lets, which will be periodically cleaned or hauled off by a licensed disposer.

• Temporary sanitary facilities shall be located away from drainage ways, inlets, receiving waters, areas of high traffic, and areas susceptible to flooding or damage by construction equipment.

• In project areas susceptible to strong winds, temporary sanitary facilities shall be secured to prevent overturning.

Dust Control Water will be applied to disturbed areas as needed to control wind erosion from exposed soil surfaces to prevent nuisance and prevent the transport of dust and soil particles into the air, off the project site, into any surface waters, or into any drainage course. The BMP is presented in Appendix G.

• Soil shall not be oversaturated causing runoff to flow from the project site.

• Inspect protected areas routinely for adequate protection and signs of degradation.

• Perform routine spot-checks to ensure wind erosion control techniques are properly implemented.

Stockpile Management Stockpiles will be protected to minimize the potential for sediment or contaminants from entering the storm water.

• Stockpiles must have effective sediment controls, and cannot be placed in surface waters nor in storm water conveyances such as curb and gutter systems, or conduits and ditches.

• Stockpiles shall be covered to the extent practical, and/or protected with a temporary perimeter sediment barrier.

• Temporary perimeter sediment barrier such as berms, dikes, silt fences, or sandbags must be constructed to protect stockpiles from runoff.

• Implement wind erosion control practices as appropriate on all stockpiles as previously discussed.

• Protect all loose piles of soil, silt, clay, sand debris or other earthen materials such that sediment is prevented from leaving the site.

Good Housekeeping Good housekeeping procedures will be followed during this project, including keeping the project area free of trash and debris, keeping material and equipment storage areas clean, and timely, proper disposal of project waste.

Preventative Maintenance Equipment used during this project shall be maintained in good working condition and will be subject to routine, preventative maintenance in according with the manufacturer’s recommendations.

Equipment and vehicle fueling was discussed previously under Vehicle and Equipment Management.

Dewatering and Diversions Plan Narrative Construction of the new bridge and replacement of Fanny Bridge will require the installation of deep piles to support bridge abutment footings, which extend approximately 30 feet below the bottom of the river channel. These piles will be driven into the soil to their full depth using a crane equipped with a pile driver. The wet soil and water will then be pumped out of the steel shell of the pile and into a collection system. Water pumped from excavation activities or in areas of high groundwater are expected to contain suspended sediments and other solids, but will not be discharged into the Truckee River, stream environment zones (as defined by Tahoe Regional Planning Authority), wetlands (as defined by US Army Corps of Engineers), or municipal storm drains. Dewatered effluent will be pumped from the collection system into trucks for disposal offsite. Disposal will occur at properly permitted facilities.

During construction related to the existing Fanny Bridge, surface flow water will be diverted through 200- foot long pipes attached to the Tahoe Dam gates to a point just downstream of the construction site. Therefore, minimal dewatering will be needed for rehabilitation or replacement of Fanny Bridge.

A 404 Permit and 401 Water Quality Certification are being obtained for the site and the conditions of these will be followed during the project.

A conceptual dewatering plan can be found in the Sheet S5 in the Drawing in Appendix F.

Active Treatment System Plan Narrative This project will not use an active treatment system, and as such, this section is not applicable.

Post-Construction Stormwater Management Measures Narrative Municipal jurisdictions and state highway departments must design projects to meet requirements in the respective municipal storm water NPDES permits. Since the project is in a Phase I Municipal Separate Storm Sewer System (MS4) it must comply with the local jurisdictions NPDES permit for water quality.

The project has coordinated with Lahontan, Tahoe Regional Planning Agency (TRPA), and California Department of Transportation (Caltrans) to meet their MS4 requirements. Each of these agencies has also reviewed the plans presented in Appendix F to ensure compliance with their permits.

Schedule for BMP Implementation BMPs will be implemented by phase as presented on the Schedule in Appendix A. BMPs will be in place prior to earth disturbing activities or other potential storm water polluting activities commence in each segment. An effective combination of temporary sediment and erosion controls on DSAs will be implemented prior to the onset of precipitation events.

BMP and Disturbed Soil Area (DSA) maps Specific locations of the structural BMPs are shown on the Erosion Control Layout Plan (Sheets E1 through E7 on the Drawings in Appendix F). The erosion and sediment control symbols are indicated on Sheet A2 on the Drawings in Appendix F.

DSAs will be developed and maintained as the project progress using the Erosion Control Layout Plan (Sheets E1 through E7 on the Drawings in Appendix F). All active DSAs shall be delineated on a map as the project progresses. DSA maps must be kept updated to reflect site conditions. Once an area is stabilized or winterized, it should be hatched out or otherwise notated to indicate it is no longer disturbed.

BMP Inspection, Maintenance, and Rain Event Action Plans BMP Inspection and Maintenance Narrative Visual inspections will be conducted at the following frequencies during the active construction season:

• at the end of each work day,

• within 24 hours prior to an anticipated precipitation event (chance of precipitation is forecasted at 30 percent or greater),

• daily during extended storm events, and

• within 24 hours after actual storm events.

This requirement does not apply during snow events.

During the winter or inactive period (defined as October 16 through April 30 for purposes of this permit), inspections will be conducted at least once per month during daylight hours.

The inspections will be conducted by the QSP. The QSP may delegate any or all of these activities to an employee appropriately trained to do the tasks.

The inspection form can be found in Appendix H.

Inspections shall be conducted to identify and report the compliance status for following items, as a minimum:

• Damage to containment dikes or erosion control fencing.

• Improperly installed or ineffective erosion control fencing.

• Unauthorized vehicle access, or vehicle access into designated non-construction areas not subject to disturbance.

• Boundary fence damage or removal.

• Disturbed areas with inadequate erosion prevention and sediment control protection.

• Evidence of any sediment leakage through erosion control fencing or containment dikes.

• Soil piles and other earthen materials which are unprotected or located in a drainage way.

• Spilled and improperly stored chemicals, paint, fuel, oil, solvents, sealants, etc.

• Upstream runoff diversion structures (are in place and operational).

• Any evidence of sediment tracking from construction equipment.

• Any signs of soil erosion or deposition down gradient from runoff discharges.

• Sediment accumulation within onsite storm water drainage control facilities, and facilities in need of maintenance to ensure effectiveness.

• Any evidence of non-storm water discharges from the project site. The inspection report shall note whether any such discharges are authorized, or are illicit and not authorized. If authorized, the condition of the applicable BMPs must be indicated.

• Any observed impacts to the receiving water.

Details of the inspections can be found in the Construction Site Monitoring and Reporting Plan (CSMRP)

The inspection report will be completed after each inspection. A copy of the report form to be completed by the QSP is provided in Appendix H of this SWPPP. Completed forms will be maintained on-site during the entire construction project. Following construction, the completed forms will be retained for a minimum of 1 year.

If deficiencies are identified during BMP inspections, repairs or design changes to BMPs will be conducted within 72 hours of identification or before the next predicted rain event, whichever is sooner.

If construction activities or design modifications are made to the site plan which could impact storm water, this SWPPP will be amended appropriately. The amended SWPPP will have a description of the new activities that contribute to change or increase pollutants and the planned source control activities.

Rain Event Action Plan Narrative During active construction periods, the QSP must develops a Rain Event Action Plan (REAP) no later than the calendar day 24 hours prior to any anticipated precipitation event.

An anticipated precipitation event is any weather pattern that is forecast to have a 30 percent or greater chance of producing precipitation as rainfall in the project area. During periods when thunderstorm activity is anticipated, the discharger shall monitor weather conditions during the course of the day, and prepare and implement a REAP if the chance of…