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CUP 260C; PALOMAR TRANSFER STATION; PRELIMINARY REVISED STORM WATER POLLUTION PREVENTION PLAN AND MONITORING PROGRAM; 2003-03-21
• • • PRELIMINARY REVISED STORM WATER POLLUTION PREVENTION PLAN AND STORM WATER MONITORING PROGRAM Palomar Tran sf er Station Carlsbad, California Prepared For: ALLIED WASTE INDUSTRIES 1601 San Elijo Road San Marcos, California 92078 Prepared By: BRYAN A. STIRRAT & ASSOCIATES, INC. 1360 Valley Vista Drive Diamond Bar, California 91765 (909) 860-7777 February 10, 2003 (Revised March 21, 2003) BAS JN: 2003.0023 PALOMAR TRANSFER STATION PRELIMINARY REVISED STORM WATER POLLUTION PREVENTION PLAN • TABLE OF CONTENTS SECTION PAGE 1.0 INTRODUCTION 1 1.1 Purpose 1 1.2 Site Description 2 1.3 Drainage Basin Description 2 2.0 POLLUTION PREVENTION TEAM 3 3.0 SITE MAP 3 3.1 Storm Water Outfalls 3 3.2 Impervious Areas 3 3.3 Exposed Materials, Spills, and Leaks 4 3.4 Industrial Activity 5 4.0 SIGNIFICANT MATERIALS 5 4.1 SOLS Waste Transfer Station Operations 5 4.2 CWM Fleet Maintenance Operations 5 ·• 5.0 SUMMARY OF POTENTIAL SOURCES 5 5.1 SOLS Waste Transfer Station Operations 6 5.2 CWM Fleet Maintenance Operations 6 6.0 BEST MANAGEMENT PRACTICES 7 6.1 General 7 6.2 Nonstructural BMPs 7 6.2.1 Good Housekeeping 7 6.2.2 Preventive Maintenance 7 6.2.3 Employee Training 8 6.2.4 Material Handling and Storage 8 6.2.5 Recordkeeping and Internal Reporting 8 6.2.6 Inspections 8 6.2.7 Quality Assurance 8 6.3 Structural BMPs 9 6.3.1 Overhead Coverage 9 6.3.2 Control Devices 9 6.3.3 Treatment Devices 9 6.3.4 Monitoring Activities 10 7.0 ANNUAL COMPREHENSIVE SITE COMPLIANCE EVALUATION 10 • 8.0 GENERAL SWPPP REQUIREMENTS 11 9.0 REFERENCES 11 Palomar Transfer Station -Preliminary Revised SWPPP 1 (L:\Allied\2003.0023 Palomar\SWPPP\TOC.doc: 3/21/03) • • • PALOMAR TRANSFER STATION PRELIMINARY REVISED STORM WATER POLLUTION PREVENTION PLAN TABLE OF CONTENTS LIST OF TABLES Table 1 Table 2 SWPPP Individuals and Responsibilities Existing and Potential Best Management Practices Table 3 Table 4 Material and Chemical List Assessment of Potential Pollution Sources and Corresponding Best Management Practices Summary LIST OF FIGURES Figure 1 Palomar Transfer Station -Site Storm Water Discharge Locations LIST OF APPENDICES Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I AppendixJ Appendix K Amendments to SWPPP Notice of Intent General Permit for Storm Water Discharges Associated with Industrial Activities San Diego Regional Water Quality Control Board 303(d) List and TMDL Priority Schedule Drainage Calculations CDS Stormwater Treatment Unit Best Management Practice Examples Employee Training Program Drainage System Details Storm Water Monitoring Forms General Storm Water Permit Section A Checklist Palomar Transfer Station -Preliminary Revised SWPPP ii (L:\Allied\2003.0023 Palomar\SWPPP\TOC.doc: 3/21/03) • • • 1.0 INTRODUCTION 1.1 PURPOSE Bryan A. Stirrat & Associates (BAS) has been contracted by Allied Waste Industries (Allied) to prepare a site-specific Preliminary Revised Storm Water Pollution Prevention Plan (SWPPP) to address the proposed modifications to the Palomar Transfer Station in accordance with the National Pollutant Discharge Eliminations Systems (NPDES) General Permit No. CAS000001, and the Waste Discharge Requirements for Discharges of Storm Water Associated with Industrial Activities Excluding Construction Activities (Water Quality No. 97-03-OWQ). The objectives for this plan are to identify the sources of pollution that may affect the quality of industrial storm water discharges at the facility once the proposed modifications are complete, and to describe the Best Management Practices (BMPs) currently proposed to reduce pollutants in industrial storm water discharges after these modifications are complete. Once the modifications to the facility are complete, this SWPPP will be reviewed and if needed, updated annually to ensure that changes in storm water regulations, monitoring procedures, and changes in company policy are reflected in this living document. Appendix A is reserved for amendments to this SWPPP. Once the facility modifications are complete, this SWPPP will become a living document describing potential pollutants of day to day activities and the BMPs that are commonly used for a similar site. Changes in the facilities day to day operations or the availability of more suitable BMPs will be added to this plan between updates, if necessary. A Notice of Intent (NOi) to comply with the NPDES General Permit has been filed for the facility by San Diego Landfill Systems (SOLS), a subsidiary of Allied Waste Industries, for current operations at the facility. Additionally, Coast Waste Management (CWM), a sub-lease who maintains a fleet of trash collection vehicles and containers at the site has filed a NOi under separate cover (Waste Management of North County, revised 2002, "Storm Water Pollution Prevention Plan, Coastline Waste Management, 5960 El Camino Real"). Upon completion of the modifications to the facility, this revised SWPPP shall serve as a revision to the plans currently in place, and continue to operate under the existing Notice of Intents to comply. with the NPDES General Permit. A copy of the SOLS Notice of Intent is attached (Appendix B). A copy of the NPDES General Permit No. CAS 000001 is included in Appendix C. Palomar Transfer Station 1 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • 1.2 SITE DESCRIPTION The Palomar Transfer Station, operated by SDLS is located in the City of Carlsbad, in the County of San Diego, California. The site is bordered to the north by the City of Carlsbad Safety Center, to the west by the FedEx facility and the south and east by vacant land. The 11-acre lot that the facility is situated on is shared with CWM. This plan covers both portions of the facility. At that time, the SOLS facility will include the scales and scale house, the Waste Transfer Station (including the proposed expansion area), and the proposed parking area encompassing the northern portion of the 11- acre parcel. -The truck repair bays, truck fueling, bin storage, and truck washing facilities located within the site are operated by CWM. A site plan has been prepared as a part of this submission outlining the operations covered in this plan {Figure 1 ). 1.3 DRAINAGE BASIN DESCRIPTION The Palomar Transfer Station is located within the Agua Hedionda Lagoon drainage basin. The Agua Hedionda Lagoon is listed as a 303(d) impaired body of water as designated by the San Diego -Regional Water Quality Control Board (SD-RWQCB) . Under Section 303(d) of the 1972 Clean Water Act, States are required to develop a list of water quality limited segments. These waters on the list do not meet water quality standards, even after point sources of pollution have installed the minimum required levels of pollution control technology. The law requires that these jurisdictions establish priority rankings for water on the lists and develop action plans, called as Total Maximum Daily Loads (TMDL), to improve water quality. The Agua Hedionda Lagoon has two priority pollutants that are _listed on the SD RWQCB 303(d) List and TMDL Priority Schedule (Appendix D). The two priority pollutants at the Agua Hedionda Lagoon are high coliform count and sedimentation/siltation. The high coliform count has been given a low priority and will be evaluated through July 2009. Sedimentation/siltation has been assigned a medium priority and will be evaluated from July 2004 through July 2007. This document, which includes the implementation of numerous Best Management Practices (BMPs), is designed to ensure that pollutant levels are not increased as a result of the proposed modifications to the facility . Palomar Transfer Station 2 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • 2.0 POLLUTION PREVENTION TEAM Table 1 lists the individuals responsible for implementing and revising this SWPPP for the Palomar Transfer Station. Identified personnel can designate other trained personnel to conduct specific duties outlined in Table 1. Duties within this SWPPP assigned to various members of the pollution prevention team include preparation of necessary revisions, inspections, maintenance activities at the facility, collection of discharge samples, and maintenance of record keeping and reporting. 3.0 SITE MAP A detailed site map is presented on Figure 1. The site map shows the 11-acre parcel and how it is divided amongst the two operators at the facility. This plan addresses the facility as a whole. SOLS is listed as the responsible party for the areas of the site outlined in yellow on Figure 1. These areas include transfer station, proposed parking lot, scales, and scale house portions of the parcel. CWM is listed as the responsible Party for the areas outlined it red on Figure 1. These areas include the repair shop, truck washing facility, fuel island, oil water separator, and truck parking and container storage areas . 3.1 STORM WATER OUJFALLS The storm water management at the Palomar Transfer Station is provided by an engineered drainage system that includes concrete drainage swales with curb outfalls. Two proposed catch basins with CDS Technologies patented treatment systems including the optional oil baffles shall be installed within the SOLS portion of the facility as a part of the facility modifications. The first of these U!)its will facilitate the drainage of the eastern portion of the proposed parking lot and transfer station portion of the site and has been designated as PAL-1, as shown in Figure 1. A second unit designated as PAL-2 will facilitate the western portion of the proposed parking lot, the scales and the scale houses, as shown in Figure 1. Outfalls from PAL-1 and PAL-2 have been designated as the sampling and observation locations for SOLS. A third discharge point designated as PAL-3, as shown in Figure 1, is designated as a sampling and observation location for CWM. The outfall is currently protected using an oil absorbent sock filter within the channel at the outfall which allows the storm water effluent to pass through it trapping oil and grease within the filter. The absorbent sock filter is held in place with sand bags, and acts as a final check damn removing sediment from the effluent stream prior to it leaving the site. The Palomar Transfer Station 3 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • proposed changes at the facility will have no impact on the storm water that leaves the site through discharge point PAL-3. As such, no changes or improvements to this discharge point are proposed at this time. 3.2 IMPERVIOUS AREAS With the exception of proposed landscaped berm areas adjacent to the proposed parking lot and an undisturbed area on the northern border, the entire site is impervious. 3.3 EXPOSED MATERIALS, SPILLS, AND LEAKS The transfer station receives loads of municipal solid waste (MSW) and green waste. There is a potential for these materials to be exposed to storm water during the waste transfer process. However, the potential for the MSW and green waste to impact storm water is limited because the majority of the tipping and loading activities take place indoors. To further limit the potential of impact on storm water runoff, an emphasis is placed on performing as much of the waste transfer activities indoors as possible during rainfall events . Minor maintenance of heavy equipment takes place within a cemented portion of the site, and any leaks are cleaned up immediately. All major maintenance work is done off-site. CWM performs truck and equipment maintenance activities, bin washing, welding and painting, in covered areas. All significant materials are stored covered and in secondary containment to minimize contact with storm water c!uring the rain. In order to minimize the likelihood of spills during fuel dispensing operations, all CWM personnel are trained on how to dispense fuel. All tank-filling operations are monitored by CWM personnel in accordance with the Emergency Spill Response and Contingency Plan. CWM's truck washing activities take place outdoors on bermed concrete pads. The truck washing areas drain to a three stage clarifier. The treated effluent discharges_ to the City of Carlsbad sanitary sewer system. BMPs described in Table 2 are currently implemented to minimize the possibilities of these types of occurrences. Palomar Transfer Station 4 {L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • 3.4 INDUSTRIAL ACTIVITY SDLS's industrial activity is limited to vehicle parking as well as tipping and loading of MSW and green waste at this site. Other activities within the 11-acre parcel which include a truck maintenance facility, additional truck and container storage, truck washing, and truck refueling are operated by CWM. 4.0 SIGNIFICANT MATERIALS 4.1 SOLS WASTE TRANSFER STATION OPERATIONS Only municipal solid waste is accepted at this facility. Hazardous materials such as motor oil, lubricants, and antifreeze are stored in 1 to 5-gallon containers or 55 gallon drums and are kept on secondary containment pallets in a hazardous materials storage locker. Occasionally, small quantities of household hazardous waste may be intercepted during inspections of waste loads. Hazardous wastes are either returned to the generator or stored in a hazardous waste storage locker until proper disposal arrangements can be made. All hazardous wastes on-site are stored in accordance with state and federal hazardous waste regulations, as detailed in the facilities Hazardous Materials Business Plan and Hazardous Waste Exclusion Program. Table 3 lists materials and chemicals handled and stored at the transfer station. The locations of the hazardous material storage locker and hazardous waste storage locker are shown on Figure 1. 4.2 CWM FLEET MAINTENANCE OPERATIONS CWM activities occurring at the facility that may affect storm water quality are truck and equipment maintenance, equipment painting, truck and container storage, and vehicle fueling. Pollutants that have a potential to be present in storm water discharge are antifreeze, oils, diesel fuel, and unleaded fuels. All hazardous materials are stored within secondary containment in accordance with CWM's Hazardous Materials Management Plan. Engine and hydraulic fluids may potentially leak from vehicles parked outdoors at the facility . Palomar Transfer Station 5 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • 5.0 SUMMARY OF POTENTIAL SOURCES • • 5.1 SOLS WASTE TRANSFER STATION OPERATIONS 5.2 The potential for small pieces of wind blown litter associated with the transfer station operation is the most potential storm water pollutant source at the transfer station. Accumulation of dust and oil on paved surfaces resulting from truck traffic through the facility and overnight parking is a secondary potential source. No significant spills have occurred at the site and hazardous materials storage lockers are managed effectively and do not pose a significant threat to storm water so long as the materials are properly stored. Table 4 summarizes potential pollutant sources and associated BMPs. As a result of the proposed parking area, there is an increased potential for dust and oils on vehicles stored within the lot to impact storm water runoff. In order to eliminate the possibility for an increase in storm water pollutants, counter measures are proposed as a part of the site modifications. A site drainage profile has been prepared to determine the storm water flow concentrations for a 10 year storm event lasting 6 hours. The 10-year, 6-hour storm event was determined to create a peak runoff of 3.12 and 6.36 cubic feet per second (CFS) through PAL-1 and PAL-2 respectively (calculations provided in Appendix E). It should be noted that these calculations are more stringent than required in Order 2001-01 as the facility discharges into a 303(d) listed bodies of water. The increased capacity of these units is anticipated to meet any future requirements set forth for discharge to 303(d) listed bodies of water. In order minimize the pollutants leaving the site as a result of the proposed expansion; two CDS treatment units with oil baffles will be installed. One unit will be installed at each discharge point affected by the proposed expansion, as a final BMP prior to storm water leaving the site. These units are designed to remove oil, sediments, and litter from storm water flows with 95% efficiency. Additional BMPs used at the site to prevent potential pollutants from reaching the CDS treatment unit will further reduce or eliminate pollutants in the storm water effluent (additional information on the CDS treatment unit is included in Appendix F). CWM FLEET MAINTENANCE OPERATIONS All water used in truck and bin wash operations drains directly to containment clarifiers. A multi-compartment clarifier collects sediment and debris generated as a Palomar Transfer Station 6 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • result of bin washing operations and a recycling system is in place for the truck wash. Hydraulic oil, motor oil, and anti-freeze are occasionally present on the asphalt pavement as a result of leaks in the truck parking area. Diesel fuel may occasionally be present on the concrete pad adjacent to the diesel fueling Island. Waste oils, and other oil products may be present on the ground surface near UST fill ports. Any leaks or minor spills of this nature are cleaned up immediately. 6.0 BEST MANAGEMENT PRACTICES 6.1 GENERAL This section covers the structural and non-structural BMPs utilized to prevent the potential pollution of storm water discharges from the site. These BMPs are dynamic and may change as the site develops and weather conditions change. The BMPs in place at any one time will reflect the conditions of the site and the prevailing weather conditions. Appendix G includes examples of BMPs that may pertain to this site. 6.2 NONSTRUCTURAL BMPs Nonstructural BMPs consist of processes, prohibitions, and procedures that prevent pollutants from coming into contact with storm water discharge. Relevant BMPs are indicated in brackets. 6.2.1 GOOD HOUSEKEEPING All work and storage areas will be checked daily by site personnel to ensure that all trash and miscellaneous items are picked up and all areas are neat and in compliance with applicable regulations. Stray and windblown litter is picked up nearly constantly by transfer station personnel (SC1 O). 6.2.2 PREVENTIVE MAINTENANCE Preventive maintenance includes routine inspection of the site drainage system to ensure that it is free of litter or other potential contaminants. Prior to the wet season, all drainage channels are inspected and cleaned to ensure effective drainage. Sediment that builds in at protected inlets, check dams, and CDS treatment units should be removed periodically (at least annually and more frequently if required). Oil/water separator membranes within the CDS treatment units shall be replaced in accordance with manufacturer's specifications. Palomar Transfer Station 7 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • Additionally, oil absorbent sock filters used at discharge point PAL-3 are inspected after each rainfall event, and are replaced on an as needed basis. 6.2.3 EMPLOYEE TRAINING Mandatory SWPPP employee training is conducted annually at the beginning of the reporting period. Training is required for facility managers and all staff members, inspectors, and sampling personnel who are responsible for the implementation of this plan (CA40). Appendix H contains detailed information regarding the employee training program. 6.2.4 MATERIAL HANDLING AND STORAGE In accordance with the Hazardous Materials Business Plan and the Spill Prevention Containment Control (SPCC) Plan, all handling of hazardous materials is performed in a manner to minimize the potential for spills or leaks, therefore, limiting the potential exposure to storm water runoff. 6.2.5 RECORDKEEPING AND INTERNAL REPORTING Records of inspections and personnel training are maintained on-site at the transfer station office for a minimum of five years. Internal reporting procedures in the event of a spill or release of hazardous wastes are detailed in the Hazardous Materials Business Plan and the SPCC Plan. 6.2.6 INSPECTIONS The transfer station site is inspected regularly as a part of operations. Inspections are conducted by walking the site and noting the conditions of access roads, drainage structures, site security, and vectors. Deficiencies, if any, are noted and maintenance is conducted to correct them. All records are signed, dated, and maintained with the transfer station information. 6.2.7 QUALITY ASSURANCE Quality assurance is provided through a scheduled program of inspection, maintenance, and recordkeeping performed by trained and qualified staff members . Palomar Transfer Station 8 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • • 6.3 STRUCTURAL BMPS Structural devices that reduce or prevent pollutants in storm water discharge at the transfer station are described in the following sections. 6.3.1 OVERHEAD COVERAGE The majority of the industrial activities at the transfer station take place indoors under a structural cover. All waste tipping and loading takes place indoors and is not exposed to storm water runoff. Fluids are stored inside a hazardous materials storage locker with secondary containment. 6.3.2 CONTROL DEVICES The transfer station is constructed with an engineered drainage system that drains surface water from the site and transports the flow through a series of curb drains, concrete swales, and reinforced concrete pipe. Controls have been implemented at the inlets to reduce the amount of suspended solids entering the drainage system and leaving the site. Rock filters have been installed at the pipe outlets to slow the flow out of the drainage system and prevent scouring and erosion further down stream . 6.3.3 TREATMl:NT DEVICES Two CDS Storm Water Treatment Units shall be installed in association with the proposed facility modification. These units are designed to remove oil and sediment that manages to enter the storm water flow leaving the site. They are sized for calculated peak flow rates to remove at a minimum 95% of the oil and sediments in the storm water stream. These units are intended to be an addWonal BMP to further reduce pollutants in the storm water leaving this site. They are designed to remove pollutants from the storm water flow, which the other BMPs at the site were unable to eliminate. Details of the CDS treatment unit and associated piping and curb inlets are included in Appendix I. It should be noted that the third storm water discharge point PAL-3 is not affected by the proposed facility modifications, thus no structural BMPs are proposed for that location at this time . Palomar Transfer Station 9 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • 6.3.4 MONITORING ACTIVITIES • • All structural BMPs will be inspected weekly during the rainy season and monthly during the dry season to ensure that they are functional. The site manager will monitor the weather reporting agencies for any rain forecast for the Carlsbad area. In the event that rain is forecast, the site manager will ensure that erosion and sedimentation controls are in place. Any areas that are not properly protected from storm water flows will be repaired by the end of the day. During and after a rainfall, the site manager will inspect all areas of the site using the form included in Appendix F of this report to note any areas requiring repair. These repairs will be carried out as soon as possible. 7.0 ANNUAL COMPREHENSIVE SITE COMPLIANCE EVALUATION To ensure compliance with SWPPP requirements, Appendix J contains a checklist that indicates the corresponding sections of the SWPPP in which requirements set forth in Section A of the general permit are addressed. SOLS conducts one comprehensive site compliance evaluation during each reporting period (July 1 -June 30). To comply with general permit regulations, evaluations are conducted within 8-16 months of each other. This SWPPP will be revised, as appropriate, to address changes in facility operations and policy or regulatory changes. All revisions will be implemented within 90 days of the evaluation. The evaluation process will include the following: • A review of all visual observation records, inspection records, and sampling and analytical results. • A visual inspection of all potential pollutant sources for evidence of, or the potential for, pollutants entering the storm drainage system. • A review of BMPs used at the site and an evaluation of currently available BMPs to ensure that the most effective BMPs for the site operations and conditions are used as needed. The evaluation will include structural and nonstructural BMPs, and the equipment required to properly implement them. • Preparation of an evaluation report that includes the date of the evaluation, identities of personnel involved in the evaluation, necessary SWPPP revisions, and certification of compliance by the designated authorized representative. Palomar Transfer Station 1 0 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) • • 8.0 GENERAL SWPPP REQUIREMENTS A copy of the SWPPP is maintained at the transfer station, and at the SOLS administrative office, and will be available for review upon request to representatives of the SD-RWQCB. In the event that the SD-RWQCB notifies SOLS that the SWPPP fails to meet one or more of the minimum requirements of the general permit, the facility operator will prepare and submit a SWPPP revision and implementation schedule. Within 14 days of implementing the required SWPPP revisions, SOLS will provide written notification to the SD-RWQCB. Any planned changes in industrial activity at the site which could significantly increase the potential for pollutants to enter the storm water discharge will be addressed in a revised SWPPP and implemented prior to changes in industrial activity. If any part of the SWPPP can not be implemented by deadlines specified in the general permit due to proposed significant structural changes, SOLS will submit a report to the SD RWQCB describing the portion of the SWPPP that cannot be implemented by the deadline. Justification for any required time extensions will be provided, and a schedule for completing and implementing that portion of the SWPPP will be prepared. Also included will be a description of the BMPs that will be used in the interim to reduce or prevent pollutants in storm water discharge. The proposed interim BMPs and request for a time extension is subject to the SD-RWQCB approval or modification. The SWPPP will be reviewed annually and amended to address changes to site operations, industrial activities, or maintenance which could lead to an increase in the possibility for pollutants to enter the storm water discharges, or to address a significant increase in the pollutants observed during the sampling or inspections, or the objectives of the general permit are not met. 9.0 REFERENCES Waste Management of North County, revised 2002, "Storm Water Pollution Prevention Plan, Coastline Waste Management, 5960 El Camino Real," prepared for Coast Waste Management. IT Corporation, "Storm Water Pollution Prevention Plan and Storm Water Monitoring Program," prepared for San Diego Landfill Systems, Inc. URS, "Palomar Transfer Station Modifications -Proposed Station Modifications Grading • Plan," prepared for Allied Waste Company. Palomar Transfer Station 11 (L:\Allied\2003.0023 Palomar\SWPPP\Prel Rev SWPPP R2.doc: 3/21/03) TABLES •• • • • TABLE 1 SWPPP INDIVIDUALS AND RESPONSIBILITIES PALOMAR TRANSFER STATION ORGANIZATION JOB TITLE RESPONSIBILITY Environmental Manager/ • SWPPP program oversight San Diego Landfill Systems, Inc. / • Annual report oversight Coast Waste Management* Compliance Manager • Project management • Training • Quarterly inspections • Storm water Discharge Observations Geologic Associates/ Bryan A. Stirrat & Associates Project Engineer During Two Sampling Events • Annual report • Sampling • Spill response • Monthly Wet Season Inspections San Diego Landfill Systems, Inc. / Landfill Manager • Annual Site compliance Coast Waste Management* • General Housekeeping • BMP Implementation *Responsible for areas as shown on Figure 1 . L:\Allied\2003.0023 Palomar\SWPPP\Table 1.xls • • • BMP NUMBER Existing Potential BMPs BMPs CA31 CA32 ESC11 ESC21 ESC23 ESC24 ESC32 ESC40 ESC41 ESC54 SC10 SC20 SC72 SC76 TABLE 2 EXISTING AND POTENTIAL BEST MANAGEMENT PRACTICES PALOMAR TRANSFER STATION PERFORMED BMP NAME AT SITE? LOCATION Vehicle and No Equipment Fueling Vehicle and Equipment Yes Cemented surface Maintenance Mulching Yes Dust Controls Yes Site wide Construction Road Yes Working areas are paved Stabilization Stabilized Construction Yes Working areas are paved Entrance Slope Drain Yes At slope faces to direct water to channels Riprap at base of slope drain Outlet Protection As needed outlets site wide were slope drains are present Check Dams As needed In concrete channels to dissipate enernv Storm Drain Inlet Yes Site wide Protection - Housekeeping Yes Site wide Practices Hazardous waste storage Material Storage Control Yes locker/40-yard container. Vegetation Control Yes Site wide Storm Channel/Creek yes Site wide Maintenance L:\Allied\2003.0023 Palomar\SWPPP\ Table 2r.xls ADDITIONAL RATIONALE OR COMMENTS As required during operations at the working face and on haul roads. PAL-1 and 2 nazaraous ma1enaIs a, ,u wastes/site fluid lubricants are temporarily stored in locker with secondary containment. • • • MATERIAL TABLE 3 MATERIAL AND CHEMICAL LIST PALOMAR TRANSFER STATION STORAGE QUANTITIES LOCATIONS (Maximum Volume) Hazardous Waste and Hazardous Materials* See Figure 1 Unspecified Waste Fluids ** N/A Lubricant and Hydraulic Oil See Figure 1 55 -110 gallons Antifreeze See Figure 1 55 -110 gallons Notes: DAYS ON SITE 90 N/A Always Always *Hazardous Waste and Hazardous Materials identified thru the implementation of sites Hazardous Materials Business Plan and Hazardous Waste Exclusion Program. ** Hauled off-site by contractor servicing vehicles . L:\Allied\2003.0023 Palomar\SWPPP\ Table 3r.xls • • • AREA Waste Containment Area Site wide Hazardous Waste Storage Locker TABLE 4 ASSESSMENT OF POTENTIAL POLLUTION SOURCES AND CORRESPONDING BEST MANAGEMENT PRACTICES SUMMARY PALOMAR TRANSFER STATION ACTIVllY POLLUTANT POTENTIAL BEST MANAGEMENT SOURCE POLLUTANT PRACTICES Transferring Stockpiles Solid Waste See Table 2 Maintenance Disturbed areas and Dust and Particulates See Table 2 Roadways Temporary Storage of Spills or leaks Hazardous Wastes See Table 2 hazardous wastes L:\Alhed\2003.0023 Palomar\SWPPP\Table 4.xls • FIGURES • • • • APPENDIX A AMENDMENTS TO SWPPP Revised 3/20/03 to Address Comments From City of Carlsbad • • • APPENDIX B NOTICE OF INTENT • State Wate< Resoon:::es Control 8oaro NOTICE OF INTENT TO COMPLY WITH THE TERMS OF THE GENERAL PERMIT TO DISO:fARGE STOAM WATER ASSOCIATED WITH INDUSTRIAL ACilYITY CN0 OAOER No. 97-03-0WO) ( &duding Constroction Activities) • ;TION L NOi STATUS ~chedconlyonebox) { J NewPennlttoo a ( J Olal,ge of lnfo<ma6on WOfO I I -I :TION IL FActUTY OPERATOR INFORMATION (See instructions) NAME: . Phone: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I_J_J_J-1 . illif,gAddress: I I I I I I [ I I I I I I I I I I I I I I I I I I-I I. I I ' y. State: Zip Code: I I I I I I I I I [ [ I" ~ l I I -1 I I I I I , _L_ I I I I otactP8fSOn: I I I I I I I I I I I I I I I I I I I I I I I I I I I I ( I OPERATOR TYPE: (check one) 1.{ J Private 2.( )Oty 3.{ }Coonty 4.{ }State 5.[._]FederaJ 6.( JSpeciai District ' :rtON Ill. "FACILITY SITE I_NFORMATION; . UTYNAME . Phone: I I I I I I I I I I I I ·, I I I I I I I I I I , , I I I LLLJ-1 I -- citity Location: County: I I I I I [ I I I I I I I ( I -t" I I • I· I I I I I I I I I I ' I I I I I I I y:-. State: Zip Code: l I I I I I I I I I I-I I I I I I I I I I 1· ' ~ I I I I I - MAILING AOORESS~ I I I I I I I I I I I I I I I I I -I I I I I I I I I I I I ' y: State: Zip Coda: I I I I I I I I I I I I I I I I ·1 I I I I I ' --'--I I I I I T mactPerson: I I I I I I I I I I I I I I I I I I I I I I I I I' I I I I , FACllJTY INFORMATION • ( check one) I I 1-1 I I I I I I I I I I ' 7.{ )Gov.Combo I 1-1 , , , I I· ·r· I I I I I I I 1-1 I I· I I I I I I I ' , (al Size of Site: h:tes . Sq. FL Percent of Site Impervious (including rooftops) I I I I I I ( 1 . : .. J ] . ., I I I , % '. SIC COOE(S) OF AEGUlATEO AcnytTY: E. AEGUlATED ACTIVJTY (desctibe sach SJC code): : I I I I ' I I I I I I I I I I I_ I I I I I I I I I I I I I I I J .. I I I I ' I I I I I I I .t I I I I I I I I I I I I I I I I I I -- LLL....LJ I I I I I I I I I I I I I I I I I I I I I I I ! I I IV. ADDRESS FOR CORRESPONDENCE • acility Operator Address I_I Facility Mailing Address I_J Both - -- SEND Bill TO: ( )Facility 0perato, (Section II) { )Facility (Section Ill) r ]OltMW ,~ inlormalbl bdlow) Name: : Phone: I I I I I I I I , , I_J_J_J -1-LLJ - I Malling >.,dd(ess: I I I I I I I I Oty: State: Zip Code: I I -'--,,,, I_., ContactPeBon: I I I I I I SECTION VI. RECEIVING WATER INFORMATION Y04X fadllty's stonn water clscharges flow (ch«lc one) [ J Oinldty OR ( J fndlc'eclfy to wa1efs of lfle Ur!fted Slates. Name of receiw,g water. ._r ..... r.__.1__.,r__.,.I __._I _._t _,I.___.I__,_I _...r _r ....... _,I_,..I -' ... 1..__.1 _ _._1 -1 ... r..__.__.,_r ........ 1 ......... I ._,r.___.__._--1..I ...11 (riwt, ~. stream. ocean. etc.) . . SECTION VII. IMPLEMENTATION OF PERMIT REQUIREMENTS A. STORM WATER POllUTJON PAEVENTION Pt.AN (SWPPP) (check one) ( ] A SWPPP has been prepared for this facility and ls available for IG'liew. ( J A SWPPP wll be prep8l8d and read-/ for review by (enter date}: __J__J_. B. MONITORING PROGRAM (check one) . [ J A Mculloriug Program has been prepared for this facility and is available ror review. ( J A Mcuitortng Program wtl be prepated and read'/ for review by (enter date): __J__J_. C. PERMIT COMPUANCE AESPONSIBIUTY "Has • person been assigned respocistiity b.: 1. lnspectrng the ~ throughout the year lo identify fJfr/ potential po.llution problems? •••.••..••....••••..•..•.. 2. Colec:ting sl0lm watet ~ and hawing than enalyzed1 .•............... ~ .... ; ..................... . 3. Preparing and subn ilting an annual report by JtAy 1 of each yeat? •..•....•••••....................•...... -4. • _ _,,.._ other than sl0lm water such u ot' vehlcJs wash-wat into the stonn drain? ....... . >ECTtON VIIL REGULATORY STATUS (Go lo Seclicn IX ii not applicable) _YES _YES _YES YES ! A. WASTE otSCHARGE REOUtAEMENT OAOER NUMBER: I I I I I t B. NPOES PERMIT CA: I. I I I ;eCTtON IX. SITE MAP I HAVE ENCLOSED A SITE MAP YES{ J A new NOt submitted wi1hout a site map will be refec:ted. ,ECTtON X. CERTIFICATION LJ •1 certify under penalty of law that this document and-au attachments were prepared under my direction· and supervision : in accordance with~ system designed to assure·that qualified-personnel property gather and·evah.tate the·information : submitted •• Based on rrf/ inquiry of the person or persons who manage the system, or those persons directly responsible : for gathering the-infonnation, the infonnation submitted is, to the best of my knowtedge and belief, true, accurate and • compfete. I am aware· that there are significant penalties for submitting false infonnation, including the possibility of fine and imprisonrnenl In addition, I certify that the provisions of the permit, including tJ:le development and implementation of a Storm Water Pollution Prevention Plan and a Monitoring -Program Plan, win be complied with.• PrintedName: ____________________ __; ______________ _ Signature: Date ----------------------------------- t ~ • ~~====~=;;;;;;;;;;;;;;;~~;;;;;;;;;;;;;;;~~~ . . • State Wate< AesocJrCes Cootrd Board NOTICE OF INTENT TO COMPLY WITH THE TEAMS OF THE GENERAL PERMIT TO DfSO:iAAGE STOAM WATER ASSOCJATEO WITH INDUSTBfAL ACUYJTY (WO OAOER No. 97-03-0WO) ( &duding Constrvction Activities) • ;TION L NOi STATUS ~checkooiyooebox) [JNewP9nnitteG B. [ ) Olange ot lnfo<matioo WOfO I I . , :rtON IL FActUTY OPERATOR INFORMATION (See instructions) NAME: Phooo: I I I I [ I I I [ [ I I I l I I I I I I I I I I I I I I I ' LLLJ . illiog Address: [ [ ( • [ I [ [ [ I [ I I I I I I I I I I I I I I I-I 1 • I I I y: . State: i1p Code: [ I l I r I I I I I I I" l I I I I I I I I I I _J_ I I [ f1tact Pllf'SOO: I I [ I I l I I I I I I I I I I I I I I I I I I I I [ I I , OPERATOR TYPE: I I (c:heckooo) 1.{ J Private 2.{ }City 3.{ ]County 4.( )State 5.( . ]Fed«a! 6.( ]Special Oisbict I :TION Ill. "FACtUTY SITE INFORMATION; NAME . Phooo: ,1 I I I I I I f I I I I • I I I I I I I I I I I I I I I I LLLJ-t I --~ .. cility Location: . County: I I I I I I I I I I I I I I I . I ' I I • I· I I I I I I I I I I I I I I I I I y:· . State: Zip Code: I I I I I I I I I I I . I [ I I I I I I I I I ' k..l.A. I [ I [ [. MAILING ADDRESS: I I I I I I I I I I I I I I I I I -I I I I I I I I I I [ r ,. y: State: Zip Coda: I I I I I I I I I I I I -1 I I I I I I I I I ' _j_ I I I I I r 4lfactPerson: I I l I I I I I I I I I I I I I I I I I ! I I I I' I I I I , ·- FACtlfN INFORMATION (check one} I I 1-1 I I I I I 1-1 I I I ' 7.{ }Gov. Combo I 1-1 I I I I I· -c-I I I I I I I 1-1 I ,_ I I 1-1 I I I I , tal Size ot Site: h:res Sq. FL Percent of Site llll)eM<)US (including rooftops) I I I I I I [ I . : .. I 1 -~ I I I J % SIC COOE(S) OF REGlllATED ACTiylTY: E. REGlllATED ACTIVITY(~ each SIC code): : I I I I ' I I I I I I I I I I I_ I I I I I I I I I I I I I I I : I I I I ' I I I I I I I . t I I I I I I I I I I I I I I I I I I : LL.LU ! I I I I I I I I I I I I I I ! I I I I I I I I I I 4l1v. ADDRESS FOR CORRESPONDENCE acility Operator Address I_J Facility Mailing Address I_J Both J .. ~ SEND Bill TO: ( )Fadity Clpenlo (Secilon II) ( )Facility (Sectioo-111) ( JOlhet (MW infcnnalloo ~ Phone: l I L.LLJ -LL.LI -l_j f..J Malling >.,ddress: I I I I I I f I aty: State: Zip Code: I I ·' . I I _L_ I I I I I ,~, Contac:tPeDon: I I f I I I SECTION VI. RECEIVING WATER INFORMATION Yea facllty's stonn wat« clscharges flow (check one) [ ] Difectly OR ( ] lndln,ctly to waters of the lk!fted States. Namaofreceimgwatec: I I l I I I I f f I I I J I I I l I (river. Saki. stream. ocean. etc.) . . SECTION VII. IMPLEMENTATION OF PERMIT REQUIREMENTS A. STORM WATER POLLUTION PAEVENTJON Pl.AN (SWPPP) (check one) ( J A SWPPP has been prepa,ed for this facility and Is available for nMGW. [ J A SWPPP VIG be prupe,ad and read-/ for review by (ent« date): __J__J_. B. MONITORING PROGRAM (chedc ~) . ( ) A Mallbfng Program has been prepe,ed for lhis facility and is available for review. ( J A MOIW1omg Program 'Ml be prepared and ready for rEMGW by (enter date): __J__J_. C. PERMIT COMPl.WQ: RESPONSIBILITY 'Has • person been assigned respoclSibility fa;: I I I I .r · I I I 1. lnspeclfng the ~ throughout the year 10 identify any potential pQllution problems? . . . . . . . . . . . . . . . . . . . . . . . . . . _YES 2. Colec:ting stonn water 98fT1)les end ha,ring lhen1 analyzed? . • ........... ,.. ... , .... ; . . . . . . . . . . . . . . . . . . . . . . _YES 3. Preparing and submitling an annual report by Juty 1 of each yeas? . . . • . . . • • • • • • . • . • . • • • . • . . . . • • • • • . . . . . . . . _YES 4. Elmina olher than stam water such u • or vehlcJ6 wash-wat into the storm drain? . . . . . . . . YES ., SECTION VIIL REGULATORY STATUS (Go lo Section IX if not applicable) I A. WASTE DISCHARGE REOUIREMENT ORDER NUMBER: I I I I I . t B. NPOES PERMIT CA: I I . I SECTION IX. SITE MAP I • HAVE ENCLOSED A SITE MAP YES( J A new NOi submitted wi1hout a site map 'Ml be reie(:ted. SECTION X. CERTIFICATION ' •r certify under penalty of law that this document and aU attachments were prepared under rJTY direction· and supervision in accordance with~ system designed to assure·that quaflfied-personnel property gather and·evah.tate the·information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsibfe for gathering the infonnation, the information submitted is, to the best of my knowledge and belief, true, accurate and complete. I am aware· that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. In addition, I certify that the provisions of the permit, inciuding tJ:le development and implementation of a Storm Water Pollution Prevention Plan and a Monitoring -Program Plan, will be complied with.• jPrintedName: ____________________ __; _________________ _ I ! Signature: __________________________ Date ________ _ I t. ~ • ~===;;;;;;;;;;;;;;;=~;;;;;;;;;;;;;;;~;;;;:;;;;;;;;;;~;;;;;;;;;;;;;;;;;;;;;;;;;;;:;;~;;;;;;;;;;;;;;;~~~ • State Wate< R~ Cootro1 8oatd NOTICE OF INTENT TO COMPLY WITH THE TERMS OF THE GENERAL PERMIT TO OtSO:iARGE STORM WATER ASSOCIATED WITH INDUSTBfAL ACTIVITY r,NO ORDER No. 97-03-0WO) ( Exduding Construe.ion Activities) • :rtON L NOi STATUS ~ chedc cny cne box) { J NewPennlttee a ( J 01ange d lnk>nnation WOtO I I ., :TtON It FACILITY OPERATOR INFORMATION (Soo instructions} NAME: . Phone: I I I I I I I I I I I t I I I I I I I I I I I I I I I I I I LLLJ !lliogAddress: I I I • I I I I I I I I I I I I I I I I I I I I I 1-I I. I I I y: State: Zip Code: I I I I I I I I I I I r l I I ( I I I I I I I __J_ I I I ntactPOfSOO: I I [ I I I I I I I I I I I t I I t I I t I I I I I I I I I OPERATOR TYPE: I I (checlcooe) 1.{ ] Private 2.{ ]City 3.{ )County 4.{ }State 5.{ . _]Federal 6.( ]SpedaiDistzict . -TtON Ill .• FACILITY SITE t~FORMATION; . NAME . Phone: I I I I I I f f I I I ·, I I I I I I I I I I I I I I I 1_.LLJ-1 I :itity Location: . County: I I I I I I I I I I I I I I I· I I I I . [. I I I I I I I l l l , I I I I I I r-· . State: Zip Code: [ I I I I I I I I I I I I I I I I I I I I 1· , .G..f..A.. I I I I 1- MAILING ADORESS: I I I I I I I I I I I I I I I I I I I I I I I I I I I [ [ J· '{: Slate: Zip C<lde: I I I I I I I I I I [ I I I I l I I I I I I I _j_ I I I I I r otact Person: I I I I I I I I I I I I I I I I I I I I I I I I I' I I I I I FAC1UlY INFORMATION ( check one) I I 1-1 I I I I I 1-1 I I I I 7.{ • ]Gov. C-ombo I I-I [ I I f 1·-r-I I I I t I I 1-1 I I I I 1-1 I I I I ' tal Slze cl Site: Acres . Sq. FL Percent of Site Impervious (including rooftops}- I I I I I ' ( ] . : .. l ] -~ I t I ' % : SIC COOE(S) OF AEGUlATEO ACTMTY: E. REGut.ATEO ACTMTY (describ6 each SIC code): : I I I I I I I I I I I I I I I I_ I I I t I I I I I I I I I I I •. I I I I I I I I I I I I . t l I I I ' I I I I I I I I I I I I I ' LL.LL..l I I I I I I I I I I I I I I I I I I I I I I I I I I IV. ADDRESS FOR CORRESPONDENCE • adlity Operator Address I_J Facility Mailing Address I_J Both 1 .. SEHOBllL TO: ( }Facility 0peratot (Secilon It) f JF.adlity (Section Ill) r JQCh« (enw inlcrmallon ~ Name: Phone: r I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I_LL.1-1-LLJ-I J I I.J : . Maling-A.ddress: -.,,i· r I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Oty: State: Zip Code: I I I I I I I I I I I I I I I I I I t I I I I I _j_ I I I I I , _., ContactPtnon: I I I I I I I I I I I I I I I I I 1· I I I I I I I I I t I I ' SECTION VJ. RECEMNG WATER INFORMATION Youc fadllty's stonn water clsc:harges flow (check one) ( J Oifedfy OR ( J lnchctly to waters of the ~ed States. Name of receMrlg water. i..1 -1IL---Ll___,_I ___.,.I -L..l .... 1 ......... 1___,_1 ___._1 __.__I ..... l._,..I__.I __._I _1.___.1___._1__.___._1· .... l ........ l___,____._...,_._I ...,. Ii..:.· _.1___,_-.1......LI -11 (river, ~. stream. ocean, etc.) . . SECTION VU. IMPLEMENTATION OF PERMIT REQUIREMENTS A. STORM WATER POUUTION PAEVENTION Pl.AN (SWPPP) (check one) ( J A SWPPP has been prepared for this facility and ls available for nMeW. ( J A SWPPP MIi be pr9p8l8d and read-/ for r8'liew by {enter date): __J__J_. B. MONITOAING PROGRAM {check~} . ( J A Mollltortng Pi'og,am has been prepan,d for this facility and is avaia.ble r« review. ( ) A Mol Ntorfng Program wil be prepared and ready for review by {ent« date): __J_J__. C. PERMIT COMPt..WK:E RESPONSIBILITY 'Has a p«SOn been assigned responsibility 10(: . I I ·1 I 1. Inspecting the ~ lhroughoot the year to identify any potential po_llution problems? . . . . . . . . . . . . . . . . . . . . . . . . . . _YES _J.. 2. Colec:ting slccm water san,ples and having ttl8nl analyzed? .•............... , .... ~ .. .,. . . . . . . . . . . . . . . . . . . . _ YES _ 3. Preparing and subnlittlng an annual report by Jtly 1 of each yeal'l ...... , • • • . • . . . . . . . . . . . . . . . . . • • . . . . . . . . . _YES <4. Elmina oCher than s1ccm water such as • or vehld6 wash-wat into the stoon drain? . . . . . . . . YES SECTION VIIL REGULATORY STATUS (Go to Secticn IX ii not applicable) I A. WASTE DISCHARGE REQUIREMENT ORDER NUMBER: '· I , I I t .. f B. NPOES PERMIT CA:. I I . I I I SECTION IX. SITE MAP I ; I HAVE ENa.OSEO A SITE MAP YES{ J A new NOC submitted wfthout a site map will be rejec:ted. ,ECTION X. CERTIFICATION •1 certify under penalty of law that this document and all attachments were prepared under my direction· and supervision in accordance with ~ system designed to assure·that quaflfiectpersonnel properly gather and ·evaftlate the· information submitted. • Based on rrr, inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the infonnation, the information submitted is, to the best of rrr, knowtedge and belief. true, accurate and , complete. I am aware· that there are significant penalties for submitting false information, including the possibility of fine . and imprisonment. In addition, I certify that the provisions of the permit, including the development and implementation of a Stonn Water Pollution Prevention Plan and a Monitoring Program Plan, will be complied with.• - . I f PrintedName: ____________________ ___; ________________ _ Signature: __________________________ Date ________ _ Ti~: • ~~~;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;~~~~~~~~~;;;;:;;;;;;;, . • • • APPENDIX C GENERAL PERMIT FOR STORM WATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITIES :t ,,CA :919 657-1011 • ~AY J. 199I TO: Current facility Operators REISSUED INDU~TRIAL ACTIVITIES STORM WATER GENERAL PERMIT Enclosed are the Industrial Activities Storm Water General. Permit {General Permit) adopted by the State Water Resources Control Board _(SWRCB} on April 17, 1997 and a_facility specific-Noti~~ of Intent {NOI} that must be ~eviewed, signed, and returned with~n 45 days of receipt. _An addressed return envelope is also enclosed for your convenience. ~ a facility operator that had previously submitted an NOI for the now expired General Permit, you are _not required to submit a fee or site map with this NOI. The reissued General Permit contains many revisions as compared to the expired General Permit. The reve~se side of this letter lists some of the important changes that m~y effect your Storm Water Pollution Prevention Plan {SWPPP) and Monitoring·Program. You are required to ~eview, and revise, as necessary; your SWPP? and Monitoring Program by August 1, 1997 to ensure that they comply with the reissued General .Permit. Pleas~ note t~at the reissued General Permit requires you to complete all your remaining 1~96-97 activities required by the expired General Permit. For example, you must submit an Annual Report to the local Regional Water Quality Control Board {RWQCB) by July 1, 1997. You should discuss any questions or issues related to this reissued General Permit with the appropriate RWQCB staff. Attachment 2 of the General.Permit lists the RWQCB addresses, telephone numbers, and staff contacts. If-you have any questions for SWRCB staff; please call-our industrial activities message line at 9i6/657-0919.· Vur "u.r.o,m r.t :11 prc-:<n·e unc! -:."n11J11t L' :it,: "f:lt1b:,· "f CJl11;,rn1:.1 : ,,.,.•uter re-:.,urt..·c.-=. urul ,:n.ture tlr,:rr pr,1p<r Ji/r,, ,1::uri ur_d •·:;_ :,•r: ;,-:,· :-•r :r.,: f:r"•:t·:it ••f ;•r't' .. ,,'1! .;rd _'u:i.,r~ ::."!r..er ;J:11n: P::tc Wilson Gciv~nwr SUMMARY OF .D!POR~""'l' REVISION REW PE:.RMIT Ncn-stopn wat~r Discharges Distinction between authorized an~ unauthorized non-storm water discharges unclear. Fact Sheet Guidance and Permit Language not entirely consiste.~t. Provides a speci~ic list of non-storm water.discharges that are authorized when certain conditions are met. (see pages 5-6, D. Special Conditions). storm wa.t;er Pollution Prevention Plan <SHPPPl -. -Provided basic description of ~teps necessary to develop an effective Siol?PP. -Authorized non-storm water discharges are not addressed. -·No deadline to implement SWPPP revisions in response to violations. -Provides a better description of the steps necess~ to develop an eff~ctive SWPPP. -Requires BMPs for authori:ted non storm water discharges. -Requires SWPPP revisions within 90 days after a violation is found. • -Requires an Annual Comprehensive Site Compliance Evaluation (formerly called an annual site inspection that was included in the Monitoring Program}. Monitoring Program and Re~orting Besruirements -Visua1 observation for the presence of unauthorized non-storm· water discharges twice/year during dry season. -No requirement to obse~e authorized non-storm water discharges. -Wet Season October 1-April 30. -Sampling required in first 1/2 hour. -Sampling of storms that-produce 1 hour of discharge. -Analyze ==om basic pa=ameters a.~d toxic chemicals ~~d other pollutants. -Visual observation for the presence of unauthorized non-storm water discharges quarterly. -Visual observations of authorized non-storm water discharges quarterly. -Wet Season October 1-May_ 31. --Sampling required in first hour. ·-·-Sampling of··a -storm event that produce~-discharge. -In addition, analyze listed Table D parameters. -Sample two storm events/year. Facility operators who have sampled six storm events are eligible for reduced sampling. • Ther'! a=e •✓arious r~·,isicr.s t~ rr.oni:.ori~g ?a=-::.-=::::.1::-:.:; s::.:·:::.:: deta.:.ls. ~he G::-:,up Monitoring requirements. Group =~~:a=~=~=:~;=~~~ leade~s !or more ., .... • TABLE OF CONTENTS l'OR STATE WATER RESOURCES co~rROL BOARD (STAff l-11'.TXR BOARD) WATER QUALITY ORDKR NO. ,1-03-DWQ U>,TIOHAL POLLUTANT DISCHAROK KLIMINA'l'ION SYSTIM (NPDSS) GENERAL PERMIT NO, CASOOOOOl .(OJClt'SRAL PXRMIT) W~STE DISCHAROK R.BQUIJUtMJ!:N'tS (WDRS) FOR DISCHARGES OF STORM WATER ASSOCIATED WITH INDUSTRIAL ACTIVITISS EXCLUDING CONSTRUCTION ACTIVITIES ·--··· ____________ _.:...,_ ________ _ FAc..·r Sl!'EE'r GEHEllA.I, PERMIT OHDER Sr:1.'.'TIOII A: !:il·:1...'T l ~)ti ll: :jF('TIO!I C: Gcorm Water Pollution Prevention Plan (SWPPP) ... , ..• , , , Monitoring Program aqd Reporting Requirements Standard Provisions , • , Al'TACIIMWT l: Facilities Covered By This Permit ,r,;:·TACIIMEIIT 2: scorm Water Contacts f'or State and Regional Boards ATTACIIMEIIT ) : Notice of Intent (NOll Instructions' f't!e Schedule, f'orm A'l'TACIIMENT "I Definitions ATTACIIMEIIT 5: Acronyms T>.llLES 'l'A.BLI:: A: '!'ABLE 0: TABLE C: 'l'A13LE 0: Five Phases For Developing and Implemencing SWPPPS .••• , •• , , • Assessment of Potential Pollutant Sources and Corresponding BMP summary • • • • Reduced Monitoring Sampling Schedule Additional Analytical Paramet~ra I-XIII 1-10 11-2) 24-H , <ts-50 13 18 H 40-H I.., • • FACT SHEET J'OR STATIC W.Tll:R RISOURCH CONTllOL BOAJlD (HAff lfAT!R BOARD) W.>.TBR QUALITY OllDU NO. '7•0l•DWQ • NA'tIONAL POLI,UTAN'l' DlSCWJ\QX EtI>OlQ.TlON SYBTJQf (lrPDBS) Ol'INKRAL PBRHlT HO. CAB000001 (~RM, PERMIT) WASTE DISCBAROI U()OtUHllttS (WDRB) J'OR DISCJWtO!S OF STORM lfATn ABSOCIATm ltt'rH DmUSTRIAL ACTIVITIES EXCLUDING CONBTROCTlOH ACTIVITIBS BACJCORomm In 1972, the Federal Water Pollution Control Act (also referred to aa the Clean Water'Act (CWAI) waa amended to provide that the diacharge of pollutant• to water• of the United State• from any point source i» effectively prohibited unl••• the diach~rge ie in compliance with an NPOES pennit, The 1987 amendment• to the CWA added Section ~02(p) which eatabli,he, • framework for regulating municipal and induatrial atorm water dhchargu under the HPDES Progran,; On November 16, 1990, the U.S. Environmental Frotection Agency (U,S, EPA) publi■hed final regulation■ that establish application requirement• for atonn water permit•. The regulation■ rttquire that ■tonn water uaoo.iated with industrial . activity (atorm water) that dhchargea either directly to· 1urface water■ or indirectly through municipal aeparate 1torm sewerd must be rogula'ted by an NPDES permit. u.s. EPA developed a ·tour-tier permit iHuance 1trategy for storm water di~charges aasociated with industrial activity as follows: Tier I, Ba1eline P•rmitting••One or more general permits will be developed to initially cover the majority of storm water discharge• aasociated with indu~trial activity. Tier II, Watershed Permittlng•-Facilitiu .within watersheds shown tc be adveraely impacted by ■torm water di1charge1 associated with industrial ·activity will. be targeted for individual or waterahed-apecific general permit,. Tier I II, Induatry•Specific Permitting-•SpeclUc industry categoriea will be targeted for individual or, induatry-epecific gen•ral permlta, Tier IV, Faaility-specitic Permitt.in17••A varhtr of factors will be und to target epeciHc facilitiu for ndividual permita, • The regulations allow authorized atatc1 to ia1u1 general permits or individual permits to regulate 1torm water dlachargdu, ·II- Conaistt11nt with Tier I, 8ao11lin.e hrmitting, or tho U,S, EPA pennitt ing atrategy, th• St.at• Water Board ie•u•d a atate\lld• Gt11nt11r.al Pe1·mit on Novell\ber u, 1'91 'that applied to all atQrm watt11r discharge• req1,1lring A permit' except con•tru.ction ·activity, The mo11it9ring requirement~ of thh Oeneral Permit \lere amondod septeml,t11r l7, 1992. A aepal'Ate ,1tatewid11t general pel·mit haa been usued for c9n11tr11ctlon activity. To obt,.dn authorization ((11• continued And fut1,1re atortn water discharge 11ndt11r this Gttnenal Permit, each facility _op.aratoi; must submit a Notice of Intent !"OIi. Thia approach la conalatent with thtt four•tl u permltl ing ·atrategy ducriboJ in Federd regulatiOll'I, i.e., Tier l, Dueline Permitting, Tier 1, Baseline rermltting, ~n•hlea the St~te to begin reducing pollutant• in 111,l11at1•1,d atorm watl!l' 111 the most effici.int manner poasil;>le. This <1,rnu;,I Pl!t'mlt 911nerally require• facility operktoz:-s to: I. ~:11111111.~1.e u11.1uth,n•ize,;f 119n-storm water discharges; .~. L>cv,1 lur, ,u1J 111,ple1nent a st,;n·tn water pollution prevent ion plan ISHl•l'I'); Mid • 1. PcH'torm m~,1111 ,,1 ing of stQt'tn water discharges and authorized 11-;;n ,n,:,1111 w.;i c:t· Jlacha1·ge11. T1f~ .. Qf ... ~'l'QBJ:L.Hli.~~lli).R!JES G<2,Yfi.B~....:r,lil.:W:Z~LJ~ Thi~ G<:11tir.;l Permit ia intended to cover all new or existing storm wattir ,lischa'rge• and authorized non-storm water discharges from facilitlt!S nqui.red by Federal regulations to obtain a r,t!1'111it 111.:luc!ing those 111 tacil.ities previously covered -by the !jc1n F'rc111c1 s.:·u 8c1y Regional Water Quality Control Board Order fie), 9~·011 tu •mended by Ord•r No. 92•116), (2) facilitiH designated by the Regional Water Quality Control Board• (Regional Water noarJ11), (JI facilities who■e,operator• aeek coverage 1,1nder tins Gt!nl!ral Permit, (4) and facilities 1·equired by fucure l,J.S. !::PA. 11ton11 watei· regulations. Thi! ~1e11ural Per,nic ia intendcHl to cover .ail bcilitie• described In Attd~~ncnt l, whether tho! fAcility ia primarr or is auxiliary to thtt tacillty opeutor'• function. For examp e, even though• $Choo1 district's primary function ia education, a facility which 1t operates for vehicle maintenance of·•chool bu••• is a r n1nsp,acat ion facility which is covered by thia Oeneral Permit. The dcr 101tion of watorm water aaaoclated with industrial ~cl1vity·• is provided in Attachment 4, Definition 9, of this ,;,rn,•ral Pernut. Facilities that discharge storm water associated wLtli 1,,,.lustrlal activity requiring a Oeneral Permit: .are listed by t'3tl!'.)01 }' in 40 Code of Federal Regulations (CFR) St!,:tic:,11 122.261b) (141 (F-edc!ral Register. Volume 55 on •III- Pago 480'5-U) •nd in Att•chment 1 9f thi11 General Perrnit. The tacilitl•• can b• publicly or·prlvately owned, A general dewcription of th••• categori•• are, 1, Faciliti•• •ubjcct to atom water effluent ilmit•tions guidelln••• nev •01,1rce 1>erformance etandarda, or toxic pollutant effluent standard• Ho CFR subchapter 111; 2, Manufacturing hclllt:iea1 3. Mining/oil and gaa fa~llitiea1 4. Haza~dous waat• treatment, •torage, or diepoeal f•cllitiea; s. l,andfilh, land application ■!tea, and open dumps that receive ind\l•trhl waete1 6. R•cycling f•c1l1t1ea auc:h u "'•tal· •crap yarda battery r~chimet•, salvage yards, automobile yarda; ' 7. St-~m electric generating facilities, e. Traneportation facilities that conduct any type of vehi~le inaintenanc:e 11uch •• fueling, cleaning, repairing, c!tc,; 9, Sewage treatment planta, 10, Conatruction activity (covered by 1 ••pArate general p~rmlt); and • 11. Certain f•cilitlea (often referred to a• ~light induatr "I w~ere induatrial material•, equipment, or activiti ~Y expo1ed to ator~ water, . ea a.e For the moat part, th••• facilitie• are identified in the Federal regulation■ by a Standard Induatrial Cl•••ification !SIC). Cl'lt.Jl~pry 1 PhcilAtsltu:l The followir.g categorie• of facilities currently hav effluMnt limit•tion ~uidelin•• for At leaat one of t~e:~or~ water aubcategoriea. They are ceMent manufacturing (40 CFR p feedlot• (40 CFR Part 412)1 fertilizer manufacturin art 411 1 I 140 CFR Pare 418)1 petroleum refining (40 CFR Part i191 phoaphace manufacturing ·(40 CFR Part 422)1 •t••~ 1 f generation (40 CFR P&rt 423)1 coal mining (40 CFRePectr c power mineral mining and pr®eeeing (40 CFR Part 43,, •rti434 l; drusi-ng (40 CFR Part 440) I and Hphalt emubio~ ore m ning and (40 CFR Part 443). A facility operator who•• t ill one of th••• general categorlea ahould examine~~ ~r1falls into guidelinea to determine if the facilit ie ca • • uent the sµbc•tegoriea that have •~orm wate~ e!fluetegtorizided in one of n gu elines. I{ ·IV· ,1 {acll ity iti classified a• one o( thoae aubcategori4U, that (acilicy is tiubje~t to the atandarda liated in the CPR for that category and is subject to this Oenenl Permit. This General Permit contains additional reguirdmenta (aee Sectioh B,6,) for tacLlitles with storm water effluent limitations guidel~nes, ~~t~nQrLJ_.J:!ii~b4r~.iu:A ln.lctlve or closed landfillu, land application sites, and open Ju111ps that have received industrial wastes (Category 5) may be ~t1bject t0 this General Pdrmit unless the storm water discharges from the slr~s are already regulated by an NPDES permit issued by ~he approprinte Regional W.:ater Board. Facility operators of clot1ed landfills that are regulated by waste discharge r~quLremenrs (WDRs) may be required to comply with this Oeneral Permit. In some case11, it may bet appropriate for closed . ,. landfills ta he covered by the Stat• Water Board's General Permit durinCJ cll.):l\11e activities. Hew l,rndfill construction should be ,:ovt':reJ br the Co11struction Activitlell General Perrnit. Facility i•Pl!l'Jtors 11hould 1..·,>ntact their llt!gional Water Board to deter111ine a.lat: ar1.11opri,1te peranit coverage. t.:l ~ euo.c, ... l l . .l)bchumu.~ F.1c1 I 1Ly upur,1tor11 of Category 11 (light lnduatry) facilitie• are 1H>L 1111bJect t<> thu Oenen1l Permit if th11y can certify that the 1,,1\,;w1119 mi111murn conditions at their facilit~ea are met: I. /,11 p1oh1blted hon•storm water discharges have been •· l 1minated or otherwise permitted, hll •rea~ of past exposure hav11 betn inspected and cleaned, ,1,; .q,p1<1p1 late. . hll mat~rial1 related to industrial activity (including waste 11,.,1,:1i,dsl are not exposed to storm water or authorized 111·,n • o,turm wac.er discharges. Al I 11hlustr!al activities and industrial equipment are not t:Xp•J~eJ to storm water or authorized non-storm water <.l l sc:hal'ges. ~ .. '1'111!1 ,: !ti no exposure of materials lssociated with industrial a,:tivLty lhrough other direct or indirect pathways such ao part l cu !ates from stacks and uxhauat systems. , .. Then: is periodic re-evaluation of th,s facility to ensure •:~111,llt1011s 1, l, 4, and 5 ai-e continuoualy.met, 1.·ur1e1nly, faci-lity operators that: can curtify that the above ,:,·:1,,!1< !<'ini; ,-1ni mt:t are n,,c requin:d to notify the Stdte \1ater • -v- Ooard or Regional Hater Doard. Theae facility operators are advia.d to retain auch certification d..,cumantation on site. The IHnth Ci.rcui.t Court of Appu.la invdidated the extimpt ion granted by U.S. EPA for •torm water diachargea from facilities in Category 11 that do not have expo1ure and ramanded the regulation to U.S. EPA for further action, The State Water Board, at thi.a time, is not requiring etorm water di•charge1 from facilities in Category 11 that do not have expo1ure to be covered by this Oaneral Permit. Inatead, the State Water Board will awalt future U.S. EPA or court action clarifying the type, of 1torm ~ater discharges that must be permitted, If necessary, the state Water Board will reopen, the General Permit to accommodate such a clarification; ~~ctlon 1068 of the Intermodel Surface Tranaportation Art of exempts municipal agenci•• ••rving population• of less than 100,000 from Pha1e I permit requirement• for moat facllities operate (uncontrolled •anitary landfill•, power plants, and alrport11 are a.till required to be permitted in Phase II Phase II of the Perrnlt Program 1cheduled to begin • Auguat 7, 2001 will cover the facilities that are exempt from Phu~ I permit requirement•. :r.n1.:u21:: ... IU.a.m1..UaES NOT COVERJ:p DUlU.L!l.tHt.B.AM.-.C.tlU:UT 1991 they l, CONSTRUCTION ACTIVITY1 Dhchargu, from con1truction activit of five acre■ or more, including clearing, grading, and y excavation. A separate general permit wa1 adopted on August 20, 1992 for thi• indu•trial category. 2. FACILITIES WHICH _HAVE NPOES PERMITS CONTAINING STORM WATER PROVISIONS• Some atorm water•di1charge1 may be regulated b other in~ividu~l or general NPDES permit• laaued by the Stare Water Board or the Regional Water Boarda, These dlschar es shull not be regulated by thh Oeneral Permit, When theg individual or g~neral NPDES permit• for auch dischar~es ·expire, the State Water Board or Regional Water Boar<l may authorize coverage under thi■ General Permit or anoth genenl NPOES permlt, or may iuue a new individual N:~ES permit conaisten~ with the tederal and State storm water 1·egulationa. Interuted partiu may petitio!l the State Water Board or appropriate Regional •Mater Board to iaaue individual or O~neul UPDES Permita, Oeneral Permit• may be issued for a patticular lndu•trial group or waterahed area. 3. FACILITIES DETERMINED !NELIGIBLE BY REOIONAL WATER DOAROS· Regional Water Boards may determine that di1charge~ f • facility or groupa of facilitiea, otherwlae eligible ~~~ a coverage under t:hia General Permit, have potential water •11111 l ity impacts that n111y not be appropriately addr<=!lsed by -VI• ch1s General Pe'rmit. In auch caaes, a Regional Water Board 111ay require !such dischargat• to bat covered by an individual or general NPDES permit. lntereated persons may petition the appropriate Regic;,nal Wate1· Board to 1 .. ue individual. NPDES permit a. The appli cabil l t y of this General Permit to euch discharge• will ~e term1oated upon adoption of an individual NPDES permit or a dlffer.nt general NPDES permit. ~. f-ACILITIES WHICH DO NOT DISCHARGE STOR,M WATER TO WATERS OF 1'IIE UNITED STATES: The discharges from the following facilities are not requ1ratd to be permitted: ct. fACil,lTIES THAT DISCHARGE STORM WATER TO MUNICIPAL SAN J'l'ARY SEWER SYSTEMS: Facil itiea that discharge atorm water to municipal sanitary sewer system• or combined sewer systems are not required by Federal regulations to be covered by an NPDES storm ~•ter permit or to submit an NOi to cornply with thl• General •·Permit. (lt should be noted that many municipalitieA have sewer use ordinances that prohibit.storm draln connection• to their sanitary .aewers.) b. FACILITIES THAT DO NOT DISCHARGE STORM WATER TO SURFACE WATERS OR SEPARATE STORM SEWERSi Storm water that is captured ahd treated and/or dhfoaed of with the• facility's NPDES permitted proc~•• wa•~•watar and storm water that i• di•posed of to evtporation ponds, percolation p~nd•, or combined tewer ayatem• are not requited to obtain a storm water permit. To avoid liability, the facility operator should be certain that no discharge of atorm water. to •u':-face w11ter• will occur .unoer any circumatancea. 5, HOST SILVICULTUAAL ACTIVITIES: ·storm water discharges from moat silvicultural activities such as thinning, harvaating operations, surface dr~inaga, or rdad construction and maintenance ate exempt from this permit. Log •orting or log 11tora_ge facil,itiu that fdl withi11 SIC 2411 are required to be permitted. ~. MINING AND OIL AND OAS FACILITIES, Oil and gas facilit,iea that have not released storm water resulting in• discharge of a reportable quantity IRO) for which notification i• or was required pursuant to 40 CFR·Patta 110, 117, and 302 at any time after November 19, 1987 are not required to be permitted unle•Js the industrial atorm water discharge contributed to a violation of a water quality standard-. Hlning tacilitiea that discharge atorm water that doe• not c9me into contact with any overburden, raw materials, inceirmedi.ate· product, finished product, by-product, or waste _,,. • ·.,✓,. -vn- product located at the facility are not required to be permitted. TheH fac:UitiH mu■t be permitted if they have a new rel•••• of atorm water resulting in a discharge of an RQ. 7. FACILITIES on IUDIA.N wms1 Di ■chargH from 0 facil ltiea Indi3n lands will be regulated by the U.S. EPA. , on HQTxrxruxou uounmmr, Storm w:t•r di■charg•• from facilities described.in the section titled Types of Storm Wate~ Diachargea Covered by Thi ■ oener l Permit• mu■ t be covered by an NPDES permit. An NOI muat be a submitted by t.h• facility operator for each individual hell it to obtain coverage. Certification of the NOI signifiea that the facility operator intend• to comply with the provisions of the O•neral Permit. Facility operator• who have filed Nora for the State Water Board order No. ,1-0lJ•DWQ (a■ amended by Order No. 92•12-DWOl or San Franci■co Bay Regional Water Board order No. ,2-011 (as amended by order No. ,2-11,, will be sent an abbreviated NOI aoon after adopting thl• Oeneral Permit that m~•t be completed and returned within 45.day• of receipt. Where operation■ have di■c~ntinued and ■ighlficant materiais remain on site (such ae at eloHd landfills), the landowner may b reapon■ible for fiiing an NOI and complying with this o:n~ral Permit. A landowner may al■o file an NOI for a facilit if the landowner, rather than the facility operatorla) is r Y ibl for compliance with thh Oeneral Permlt. ' espona e A facility OP.,rator that do•• not aubmit an NOI for a facilit must submit an application for an individual NPDES i y v.s .. EPA'• regulations (40 CFR 122.21 (a)) exclude ~er~l~t' operator■ tovered by a general pel'ft\i~ from requireme~~ t Y an lndividbal permit application unlea ■ required by th: R~ ~ubmit Hater Board. The NOI requirement• of thi■ Otneral Permit !r~n• intended to eatabli•h a mechani ■m which can be uaed t bl h a clear accounting of the number of facilit O O ••ta 18 with the Oeneral -Permit, their identltle■, rhep~!~~~!•0 1omplying operation■ at the facilitie■, and location. All facility operator• filing an NOI after the ado ti f h Qeneral Permit muat comply with thi• General Pe P on° t is facility operator• who have filed NOI■ prior to~~t. dExi•t ing this General Permit ahall continue to complete the• 0 ftion of of the previou·• General Permit through June 30 e requ rements submitting annual reporu to the Regional Wate~ ~"\including 1997. •Group Leaders· are required to ■ubmit an 19~:r a by July 1, Evaluation Report by Auguat 1, 1997• •97 Group ......... ..,· • -VJ II· fl & S~Hl.EilQt:! ...£! L !1fJJ'11.hu_l'.,l-;.IUU.'L412HfilTIQ.tHi I' r\Jlul..u ti.on~ Th11:1 Gc:11t:rc1l P,:r1111t autho1•i~e11 11toi:m wate1· and authorizttd 11<·1n-::1to1111 water c.llschargtlll from f1tcilltiea that are required to bt: c,.vtl1tid by a storm water per111it. Thia General Per.mit prohibicu discharges of matt!rlal other than storm water (non• 1:1tor111 water discharges) that are not authorized by, the General Permit and discharges contai11lng hazardoua substances in storm w.11.er i11 e~ceua of r1:po1·tahle quantities 1utabliahed at 40 CFR \ \ 7. l and 40 t'.FR 302, 4. A111.horhed non•atorm water discharges ,1 re Ad,lressed in the Specie, l Conditions of the General P_ermit, H Uucnt_Limi.t~t.ii.:m:l , tll 10E::i Pt!rmits fol' 11torm wat~r diachi,,rgea rnuat meet all applicable p10v1::1iQ111:1 ,,f Seel lonzJ 301. and .402 of the CWA. These provisions it:quire control of pollutant discharge• using beat available t.:.:hnol09y economically achievable. (BAT) 41nd best conventional ~,.)\ lutant control technology (BC'l'l to prevent and reduce r,,,l l11ta11ts and any more string1:mt co(ltrola necessary to meet wJ c" r qua 1 icy stanc.lards. IJ ::i. HA r~,;i11lations (40 Cf'R Subchapter U) establish effluent I 1m1raLion 9u1deline1 for storm water discharges from facilities 11, c~n industrial ca::.egories. For tl;)eae faci-lities, compliance w1ch the e(fluent limitiltion guidelh\e• conatitutes compliance 111th BAT an,J OCT for the specified pollutants and must be met to ,.nioply with thu General Permit. f,:,r storm wat.~r discharges from facilities not among the ten 1ndus.trial categories listed in 40 ctflisubchapter N, it la not f~asible at this time to establish num,ric effluent limitations: The re&aons why eatllbliahment of numeric effluent limitations is not feasible are discussed in detail ih State Water Board Orders !IQ. WQ 91-03 and WQ 91.•0-I. Therefor11, this Oener.al Permit allows c he .facility operator to implement b,u~ management practices (UHP~) to comply with the requirements of thi• General P.ermit. This approach is consistent with the U.S. EPA'•· August 1, 1996 "Interim Permitting Approach for Water Quality Baaed Effluent Limitations in Storm Water Permits•, • ~~~ i.Yi nu....1la t er 1, ! mi.u..tJ..Qrul Storm water discharges ehall not cause or contribute to a viol~L1on of an applicable water quality standard. The General P~r1111t requires facility operators to reduce or prevent poll11tdnta in storm water discharges and authorized non-storm water rlischarges through the development and implementation of i!MP!! which constitutes compliance with IJAT and BCT and, in most c~se~. compliance with water quality standards. If receiving • • • 'water quality stand.rd11 arc exce,uied, facility operators ai·~ required to submit a written report providing additional BHPs that will be implemunted to achieve water quality atandardu, 6.t..a.tm.J:l!'tor Pollution etc::tant.i.nru!la.na 15HP.llil • All facility operator■ must ,,repare, retain on site and implement an SWPPP, The SWPPP. haa two major objective 81 Ill to help identify the ■ourcoa of pollution that affect the quality of industrial storm water di•~harges and authorized non-storm water discharge■, and 12) to deacr-ibo and enoure the implementation of BMPs to reduce or px:event pollutants ir\ industrial atorm Wuter dlachargca a~d authorized non-atorm water diachargea. Thia General Permit requirea.dev•lopment and implementation of an SWPPP emphasizing BHP•. Thl• approach providea the flexibility nece1aary to establish appropriate BHPa for different type~ of industrial activitiea and pollutant •ourcoa, A• thia oeneral Permit covers vastly dif.hrent types of facilitiee, the State Water Board recognize~ that there la no single beat way of developing or organizing an SWPPP, The SWPPP requirements contain the essential element• that all facilitr operators m St conaider and addreu ·in tho SHPPP. Thil Genera Permit, 8 sw~pp requirements are more detailed than the prevloua general pt!rmlt's SWPPP requirement,, and the auggeated order of the SWPPP elements have been rearranged 11) to correspond more closely with other storm water p~rmite in effect throughout tho country, and 121 to generally follow• mor• l09ical path, Facility operators that have already developed and implemented SWPPP■ und•r previous general permlta are required to review the SWPPP, • requ i re,11ent • contained in thia General Permit and then review their exiuting SWPPP for adequacy. If th• exiatlng SWPPP adequately identifies and asseaaea all potential aource• of pollutant• and describes the appropriate DHP• neceasary to reduce or prevent pollut· nt the facility operator la not required to reviae the exiati~ 8 ' SWPPP, 1 9 One of tho major element■ of the SWPPP la the elimination O f unauthorized non-storm water discharges to tho facility's ~torm drain ayatem. Unauthorized non-atorm water discharges can b · generated from a wide variety. of -potential ·'pollutant aourc e T_h6Y include water■ fr011 the rindni or wuhlng of vehicle:'· equipment, building■, or pavement, tnateriala that have been' improperly dl1po1ed of or dumped, and •Pilled, or leaked materials. Unauthorized non•atorm water diachargee can contribute• aignifieant pollutant load to receiving waters, Mea■uru to control apilla, l~akage, and dumping can often be addrea ■ed through BHPa. Unauthorized non-,torm water di h may enter the storm drain ayatem via conveyances such as 11 ~ 1~~-~c'll drains. All co~veyancea 1hould be evaluated to determ they convey unauthorhed non-storm water di1charge• t inthe whether .. o e etorm d1·111n uy11to:em. IJnauthorlzotd n,,11-ato1·1n ,.,.it111r ,U11char9,11111 (111ven ,.,h,rn commingled with storm wat•rl »hall be o:elimina~•d or covered by a separ.co:e NPDES P~rmit. Thero:e are inany non-atorm "•t•r di•c:hargtt• that, under certain condition•, ehould not cont•tn _pollutant• aaaociated with in,;ll,1strlal activity Ii .e., air cc;,ndi.tionJng condttnute,. potable w.ater line teating, land,ct1ping overflow, etc.). Item D, Spechl Condition», provide• the comtitlon• where certain lietef;i non storm 1.,1ater diacharge» aro:e liluthorhed b)• tlna Ge1H:ral Permit. ~h:ini lC!dll!l-fl'.llilI llJl,1 The General Permit requir•~ 4ttv111lopment and implementation of a monitoring program. The ~'>IJjectlve• of the monitoring progritm are tu 11 I d1tmun11trate cq1npl1ancu with the Oenaral Permit, (2) aid in th<! implementation ot the SWPPP, .and (J) meaaure the ef Cttct ivenu,11 of thtt DHP•· in 1·ed1,1cing or 1,reventing poll11tanta in storm wat111r discharge• and authorized hOn•atorm water diachargt!s, All facility opt11atora (with the exception of inactive mining operations) ~re ruqui~e( to: ' 1. Pel'form viauill obaervation• Qf storm water discharge• and auc h,'ld lr.d utorm water discharg-ea. 2. ~,llect .1nd analyze aample, of •torm water di•~harga,. A11.1l}•a11:1 rnust include pH, tot,al aµlfS,ended aolids (TSS), total or<J.an!C' c111·bon ITOC), specific cohducc:ance, toxic chemicah, and otht:1· poll.utanta which au likely ti;> be present in sto1·01 w.1tt:r d1achar9ea in significant quantltiea, and those p,31·ainetera 1 isted in Table• D of this G1meral Permit. The Tal.Jle D parameter• are thoae listed in the U.S. EPA Multi Sdctor Gt:neral Permit: Facility Lperatora aubject.to Fedo:eral strinn water effluent l lmitation guideline• 1-n 40 CFlt SuL,~h.aptou· N must also aample and analyze for any pollutant spt:r1t1ed in the appropriate category of 40 CFR Subchapter N. f'.1c1l1t}• operator• are not required to collect aamplea or perforrn, v 1,-,ua l ob11ervationa during adver.1e clift1atic condition•. Sample collection and visual observation• are required only during schttdul1:d facility operating houra. Visual observations are rcquirad only during daylight houra. Facility operator• that are unable to collect any of the required·aample• or viaual observac1on• becauae of the above ,circumstance• muat provide documt:nlnion to the Regional Water Board Jn their annual report. racilit:·/ opel'aton1 may be exernpt from performing aaniplin9 and analys1~ if they: 11) do not have areas of industrial activity t:x111,s .. .t to 11to1·m wat•r, (2) ntc:eivtt an exemption froni a local a~t:nq• \1hlch has jurisdiction ov4:!r the.storm aewer system, or (JI ,.,, c,1ve an exeinption from thu appropriate ·Regional Water Doud. Pac1lity c,pcrator• mu»t alway• perform umpl lng ;..11~ analy•id tor any pollutant specified in •torm water etflbcnt limitation guiC,dinH, ' Thia Q•neral_ Permh contalh• • new procedure where hcilit_y oper&tora, if they ""'*~-.c•rta.ln -111ln·imUffl" cond'ltion1, may' certify complianc• with·thc General P~rmit and reduce the number of ea111pling avant• r~ciulred to be •.afflpled for th• remaining term Qf the General Permit. Each Regional Hater Doard may develop inatruc:tiona, guidance, ~nd checkliata to aaai1t facility operator• to compl•t• sampflng reduction requeate, Local aganclea,that wlah to provide ••mpling and analyai• exemption• or reduction• to facility operator• within th~ir juriadiction ahall develop a certification program that elearly indicate• the certification procedur .. and criteria used by the local agency. At• minimuffl, th••• program• •hould include •ite inspections, a review of the facility operator•• SWPPP, and a review Qf other record■ auch aa monitoring data, receiving water data, etc. The certification program ahall be approved by th local Regional Wat•r Board prior to implementation, • li,l..UrQAtiY• Monltai:J.n.a Facilitr operator• are required to develop a facility-specific monitor ng program that •atiafie• both the minimum monltorin program requirement• and the objective• of the monitoring 9 program, Some facility op•rators have indicated that cost effective alternative monitoring program• c:an be developed th t provide·equivalent or more accurate indicator• of pollutant• a and/or ,~P performance than• monitoring program baaed ~Pon the minimum monitoring progra111 requirementa. ·J.n example of such 1,n alternative monl~oring program would be one that ldentifi4:!s sample location• at or near pollutant 1tourcu rather than . umpling an entir• drainage area where the atoX'ffl water diachar e ~•• b••n ~iluted with atom watar from area• with littl 9 1nduatr1a~ activity, e or no The State Water Board does not want to preclude tacilit operator• from dav.loping better, and perhap■ more coat: effectlye, monitori~g program,. Thia General Permit allows facilitr operators to aub111lt alternative monitoring -. f approva by the Regional Hater Board, For in4ividuafr~gr1~~ ior the•• propoaala muat be facility specific and del'IIO t ac ht••• alternative monitoring program wilf reault in an nsira!e ow the more accur.ate indicator of pollutants and/o 8 equ va ent or Facility opera~ora with almilar indu•trial !ctr!1~f!:ctivenias, propo•e alternative snonitoring programs tor approval bm•rh: ao ' llegional Water Boarda, Thue propoaab muat demon t y h alternative monitoring program will reault in a • rate ow the more accurate indicator of pollutants and/or BM~ eltivalent or for all of the participatin9 tacilitiea, • ectiveness • ·XII· Fae i l i ty operators shall cont inuc: to comply with the exieting monitoring prcgram requirements until receiving approval by the Regi,)nal Water Board. Gr.Qll n.Jmni t.r;i rl n.g Each facility operator may either perform •ampling and analysis 1nd1vidually ur participate in a group monitoring program, A group monitoring program may be developed either by a group leader representing a group of aimilar'facilitie• or by a local c1gen;;y which holds a storm water per-m.lt for a municipal aeparate scorm sewer system for industrial facilities within its juriudiction. Th~ group leader or local agency responsible for the ,3ro11p m -nitoring progr'am 1nu11t schedule all participating lc1c1litles to sample two storm events over the life of this ~-;~neral Permit, Facility operators subject to Federal effluent l 1m1tat1ons g11idelincs in 40 CFR Subchapter N must individually ~.,mp\e c1nd analy-ze for pollutants liated in the approprhte FeJt1ral regulations. 1·~rcicipanca within a group may be located within the Jlll'l~diction of mot·e than one Regional Water Board, Multi• Regi~nal Water Board groups must receive ihe approval of the State Water Ba~rd Executive Oirector•(With the concurrence of the ,appr~priate Regional Water Boards). F.ach group leader or local agency responsible Cor group •ampling n,u,n: ( l l provide guidance or training so that the monitoring is dont! correctly, (2) recommend appropriate BMPs to reduce or prr!•1ent pollutants in storm \.later diacharges and authorized non sto, m water discharges from group participants, (3) evaluate and rep0rc the monitoring data to the State Hater Board and/or the •rr1nprlate Regional Water 9oard(a), and (4) conduct ·two on-site 1 nspect ions at each facility over th• five year term of thh Gcn~1al Permit to evaluate facility co pliance and recommend BMPa tv ~chieve compliance with this Oenera Permit, The group leader or local agency may designate, hire, o~ train in•pectora to <:vnduct these insp~ction11 that are or are not directly affiliated w1tl. the group leader or local agency. It la the group leader's or local agency's responsibility to select in1pectors that are capable of evaluating each facility•■ compliance with the General P~rmit and can recommend appropriate BHPs, All group monitoring pl'ar,s are subject to State Water Board and/or Regional Water Board(sl review. Consietent with the four-tier permitting strategy described in the Federal regulation■, the Regional Water Boa1d(al may evaluate the data and results from group monitoring to ~stablish future permitting deciaio~s. As appropriate, the Scat e Wuter Uoard and/or the Regional Hater Board(s) may tetmlnate or require substantial a~end~ent to the group monitoring plane. The State Water Board and/or the Regional Watur Board(sl may terminate a 1acility•a participation in group monicoring or require addi-tional monitoring act_ivlties. • ·XIII• • P.JUJw.t.icn of Bocord1 The facility operator 1• required to retain records of all monitoring information, copieM of all report• reijUired b thia General Pe_rmit, and record, of all data used to eornplet Y th for• period of five year• from the date of meaeur e e NOI or monitoring activity, Thi• period may be extendede~t, ~eport, and/or Regional Water Boarda. All rocnrda are pubii ~ t e St ate and muot be provided to tho Regional Water Boards c ocumenta on request, l:lA.u..r•bod Management The State and Regional ffa~ep Bo•rda•aw•,u·d ki ff i h'd' ..... , .. r." • ., ........ n erta ng a focussed e ort n water• e management through,,ut the Stat 1 reiuuing thia General .Permit, the State Water Boa~d n 1 both the evolving nature of watershed management ad ~~coin zea term de~irabllity of 1tructuring monitorin ro ra~s e ong• the Waterahed Management Initiative Thergefpor 9 th to •uppott it i d l • •• e amended mon or ng an report ng proviaione provide flexibilit f individual facility operators or group, of facility Y or propose and participate in, aubject to Regional Wate~p:r•t~r• to approval, waterahed monitoring.program■ in lieu of oar the monitoring requirements contained in thi• 0 •0 1me or all of • • •nera Perm! t. ~~ility operator Complionco Bo~oonaibilitiA.A Thia General Permit haa been written to encourage indi l facility operators to develop their own SWPPP d iv dual programs. Many facility operatora however hn mon toring compliance a1aiatance either by hi~ing a co~a~l~ose to obtain individual basis or by'participating in a grou anc 1on an Regardleaa of how~ tacilitr operator chooa • t mon toring pian. compliance, it i• the facil ty operator tha~ i O pursue compliance with this General. Permit, • responsible fer The State Water Board recognizes that indust i l operating condition• at many facilltle■ chan; a actirlties and addition, new and more effective BMPs are b le overt me. tn various facility operator• and by induatria~ ng developed by and monitoring program-requirements include vgrrups,i The SWP?P reviews, and ob1ervation1 all of which recog ir ous nspectic~s, mandate an iterative.self-evaluation ro n ze, encourage, and consistently comply with thia OeneralpPe~:i: th;t i• neceasar, to facility operator• that develop and im le • ~·general, with thb General Permit ••hould not be P • ment SWPPPs that corr.ply minor violatlona through thia .lterativepa:~}~z•d1when diacove:ing The Oeneral Permit provide• facility operat eva uation process. revise, a.nd implement the SWPPP to correct •oucrha upi tlo 90 days :o V o ationa, S'1.A'rE WATER RESOURCES COU1'RQL BQARP (STATE ffAT1'R BOARD) WATXR QUALITY OJU>KR NO. 97•0J•DW0 NATIOHAL POLLUTANT DISCHA.ROK SLIMil{A.TIOlf SYSTEM (UPD11:S) GEHERA,L PERMIT HO, ·c,.sooooo1 (ODnCRAL PBIUfIT) WA$TI!: DISCJWtOK 11,JCQt7I~S (WDRS) FOR OISClV.ROES OF STORM WATER ASBOCIATto WI'l1l INPOSTRIAL ACTIVITIES KXCLUDING CONSTRUCTION ACTIVITIES· The Stace I-later Uoard find• that: I. J. fllJ.era 1 1·-tgulationa fc,r 11to1·m water discharge• were iuued by the u.s. Enviro111111u1tal Protection Agency ·(U.S. EPA) on tl<"1•1embor 1', 1990 (40 Code of Federal Regulation• (CFR) P,Ht• 122, 123, and 12-1). •rt1e regubtlon• require operators of up~cific cate9~rie11 of facllitlea where discharge• of storm w11ter aasociat~d with industrial activity (storm waterl o.:cur to obtain an HPOES permit and to implement Beat Ava1 !Able Techn9logy £conomically Achievabl~ (BAT.) and Beat c,·,,1v,enc t.,na l Pollutant Control Technology IBCT) to reduce or !H'uveur pol lutant1 uuociaud with il"!duatrial activity in storm water ,liachargea and authorized non-storm diachargea. TII i ::1 GtUh!l a 1 Permit shall regulate storm water discharges a11d authoriud non-storm water discharges .from specific cat~gorill~ of induatrial facllltie• identified in Ac t.aclun,ent 1,, storm· water i:Hscharge11 and authorized non scorm water diachargei, from fac:ilitiea •.• deaignated by the RegioMl Water Quality Control Board• (Regional Water Boarpsl·, and storm water diachargea and authorized non-storm water dlschargea fron\ other facilities seeking General Permit coverage. This General Pfirmit may also reguhte storm water dlschargea and authoiized non-storm water discharges from facilities aa required by U.S. EPA regulations, Thia General Permlq ~hall regulate storm water discharge• lnd authorized non~•tdtin water discharge• . previously l:egulated by San Fran~i ■co eay Regional Water Board Order No.,2-11 (•u amended by Order Ho, 92•110, Thia General Permit excludes storm water diacharge■ and non• storm water discharge• that are regulated by other individual or general HPOES permits, storm water ~i•charges and non-atol:m water dhcharg•• from conatruction actl.vitiu, and storm water discharges and non-storm water dhcharge• excluded by the Regional Water Boards for coverage by thi• General Permit. Attachment 2 contains th• addresses and cc!lephone numbers of. each Regional Water Board office. T,, obtain coverage t.or storm water discharge• and autho·rized non•atorm water diachar911a p1,1rauant to this General Permit, op~r•tora of facillti~• (facility operator•) mu•t submit a fl,.,t ice of .Intent (NOii, in accordance with t,he Attachment l 5. 6. 7. a. 9. • 10. .. ~1;, ~· ln'6t1·uctiona, .-nd appropriate annual f•• to the State: Hater Board. Th1• include• facility opetator• that have participated in U,s. EPA'• group application procesi. Thia Oenerkl Permit doea no~ pr•empt or aupersed; th~ authority of local agenciea to prohibit re•tri t control atorm water diacharg•• and auth~rized n~n:,~~rm water discharges to etorm drdn 1yst•111• or other wat•r• .cour••• within their jurladictlona a■ allowed by St d Federal la~. ate an If an individual NPDES 0permit la laaued to a facilit oferator o~h•rwl•• subject to thi• aeneral Permit oryan • ~ernativ~ NPDES general permit is aubaequently ado ted which coveu atona water di ■chargu and/or authorize~ . storm water diac~arges regulated by thi• General Permi~on applicability of thl• General Permit to auch di ■char<••• 1 th• automatically terminated on the effective date of th~ s individual NPDES perait or the date of•· 1 under the aubaequent HPDES general permit~rova for coverage Effluent limitation■ and toxic and effluent atandardu eatabllahed in Section• 208(b) 301 302 J0J(d) · 307, and 403 o·f the Federal cl;an ff~tn Act (CWAi 304 • 306 • amended, are applicable to •torm water di• h ' lb authorized non.•atorm ·water discharges regula:rgdeba •nd 1 Oen,ral Permit. , e Y th s Thia action to adopt an NPDES general i the provldon•_. of, the California Envirferm t 1a exempt from (Public Reaourcaa code -Section 21100 e:ment•: ?uaiity Act with Section '1338' of the California' \fat uqC.d n accord1n1,:e . er o e. Federal regulation■ (40 CFR Sub h t limitation• guideline■ for ator! ~~t=~ :i •htabliah eflluent taciliti•• in ten indu1trial C&tevori••· •c arges from •ome For faeilitie• which do not have establish d ffl llml.tatlon guidelinea for ■tOl'III water dhcha e 'rrit Subchapter N, it ia not feaeible at thi rges n (0 CFR numeric affluent limitation■ Thia 1 d time to eatabliah number of di•charge• and th•·c0111plex ~atue to the large di,chargea. Thia la •l•o con•iatent wit~r•h·of atorm.water Auguat 1, 1,,, •Interim Per,11itti .t • U.S. EPA'• aua~ity Baaed Effluent Limitatio~? tpnpsrotach for Wat•r orm Water Permits.• Facility operator• are required to condition• of thia General Permit crplriwith the terma and terms and condition• of thia Oene;al ~mp 1•nce with the compliance with IAT/BCT requireme •rm t con•titutes to achieve water quality etandard:t• ;hf with requirements development and implementation of ~n fl• includes the • •ctive Storm Water ,:•· • • l'.:il llll ior1 Prevention Plan (SWPPP) to reduce or prevent pollllt3nts associated with induatrial activity in atorm wai~r discharges and authorized non-storm water discharges. 11. Best Managem~nt Practices (BMPs) to redu~e or prevent pollutants associated with industrial activity in atorm waLer discharges and authoriz,d non-storm water discharges ate appropriate where numeric effluent limitation• are infeasible, and the implementation of BHP• is adequate to a~hieve compliance with BAT/BCT and with water quality s t.111dc1 rdl'I, 12 The State Water Board ha• •Adopted a Watershed Management ln1c iative that encourages watershed management throughout the State. Thia General Permit recognize• the Watershed Ma11a9ement Initiative by supporting the development of watershed monitoring programs·apt~orized by the Regional l·l,1 t tl r Bl)o\ rds. l l. Following ~doption of this Oeneral Permit, the Regional Water Boards shall enforce its provisions. l 4 Fol lowin9 public notice in accordance with State and Federal la,,.,u .111.:I regulations, the State Water Board held a public heariny on November 12, 1996 and h~a~d and considered all comments pertaining to this Oene·ral Permit. A response to ·all si~n1ficant comments has been prepared and is available for public review, l~ This Order is an NPDES General Permit in compliance with s~ccion 402 of the CWA and shalt take effect upon adoption by the State Water Board. I•, A 0 l 1 ttll'ms that are defined in the CWA, U.S. EPA storm water re,:Julations and the Porter-Cologn• Water Quality Control Act w1I l have the same definition in this General Permit unless oc11,01wlse statet;l. !'I' JS 111::REB'( ORDERED that all facility operators required to be r ,, .. 111 I Jl 1.:d by this General Permit shall comply with the following 1 i\ fll SL"tll\lhJE PPOIIIBITIONS: ~x~ept aa allowed in Special Conditions (0,1,) of this ,ieneral Permit, materials other than storm water (non· storm water discharges) that discharge either directly or 1ndirectly to waters of the United States are prohibited. Prohibited non-storm water discharges must be either dl1minated or permitted by a se~arate NPDES permit. • • 4. • 2, Storm water dlachargea and authorized non-atorm watdr discharge• •hall not cause or threaten to cause pollution, contamination, or nuisance, B, EFFLUENT LIMITATIONS, l. Storm water di1chargea from facilities aubject to atorm wat4r effluent limitation guidelines in Federal regulation■ (40 CFR Subchapter NI •hall not exceed the specified effluent limltatlons. ! 2. Storm water dlachargda and authorized non-storm water diacharge~ regulated by thia General Permit shall not contain a hazardoua aubatance equal to or in excess of a reportable quantity listed in 40 CFR Part 117 and/or 40 CFR ·Part JOl. · 3. Facility op•ratora covered by thlaoeneral Permit muat reduce or prevent pollutants associated with industrial activlty in storm water diachargea and authorized non• storm water diachargea through implementation of BAT for toxic and non-conventional pollutant ■ and BCT for conventional P,ollutanta, Development and implementation of an SWPPP tijat complies with the requirements in Section A of the General Permit and.that includes BMPs that achieve BAT/BCT constitutes compliance with this requirement. C. RECEIVING WATER LIMITAT.IONS 1 1. 2. J. Storm water discharges and authorized non-atorm water diachargea to any surface or ground water ,hall not adversely impact human health or the environment, Storm water diachargea and authorized non-atorm water discharges ahall not cauae or contribute to an exceedance of any applicable water quality •t•ndarda contained in a Statewide Water Quality Control Plan or the applicable 1<eg_ional Water Board'• Bu in Plan. A facilitr operator will not be in violation of Receiv•n Water Lim tation C,2, u long u, the facility O erato/· 9 has implemented BMPa that achieve B~T/BCT and t~e following procedure la followed1 a. The facility operator •hal i •ubmit • ropor't. to the appropriate Regional Water Board that describes the BHPs that are currently being implemented and additional BHP• that will be implemented to prevent or reduce any pollutant■ that are causing or contributing to the exceedance of water quality 4. ·5· stand•i·ds, Th• repoi·t •hall include an in1ple1111rntat iQn •chedi11't. The Regioni.l Wilt er Soa1·d may req1,1ire modification• to the report. b. Following approval of the report described a~ove by the Regional Water B9ard, the facility operat~r shall· revise it• SWPPP and monitoring program to incorporate the additional BHP• that have been and wili be implement.ed, the imphmentation schedule, and any additional mi:,nitoring required. A Caci lity operator shall be in violation of this Oeneral Pdrmit if he/sh11 fail• to do any of the following: .. b. Sulirnit thu a'ttport d,u1criued. above within ,o day• 11Cter either th11 fAcility operator or the Regional 1-1.ttttr Dc;,ard dettirmin•• that diacharges are causing or ,·ontributing to an exceedance of an applicabl• water 1111.ility au,ndud; Submit a ,·eport that is approved by the Regional Hater noard; or 111,vrn~ its Sl~PPI' and rnonitol'ing program aa reciuired h}-' l he approved repo1·t. I. llon•Su·,nn Wat·er Discharges ,1. The following non-storm water dhchargea are authorized 'by this O.eneral Permit provideU that they ~~t 1sfy the conditions specified in Paragraph b. . b~low: fire hydrant fluahing; potable water sources, includ_lng potable water _related to the operation, maintenance, or testing of potable water systems; drinking fountain water, atmoapheric condensates. including refrigeration, air conditioning, and compreasor condensate; irrigation drainage; landacape watering; springs; ground"water; foundation or footing drainage; and sea water infiltration where the sea waters are discharged back into the aea wa~er source. ~. The non-etorm water discharge• ae provided in Paragraph a, above are authorized by thi• Oeneral Permit if all th~ following condition• are mets i. The non-atotm water dhchargea are in compliance with Regional Water Board requirement•. ii. The non-storm water diacharges are in compliance with locill agency ordinances and/or requirements, --· f -···,.-1 .• r iii. DHPu •re •p•cifical'ly fncluded in the SHPPP to (11 prevent or reduce the contact of non••torm water diachargea with aignlflcant materials or ~quiJ)lllent and (21 minimize, to the extent practl~able, the flow or volume of non-storm wat•r diachargea, iv. The non-atorm water dischargea do not contain significant quantitiea of pollutants. v. The-monitoring program iqcluaee quarterly viaual obeervatio~• of each non-atorm water diacharge -~nd its ■ource,■ to en■ure that ·BHP• are being implemented and are effective, vi, The non-atorm water diachargea are reporteu and deacrlbed annually a• part ct the annual r•port, c. The Regional Water -Board or ita duignee m"ay eatablhh additional monitoring. program■ and reporting requirement• for any non-atorm water diacharge authoriz•d by this General Permit, d. Dlac;hargu from firefighting activit.iea are authorized by thh General Permit and are not aubject to the conditions of Paragraph b, above,· E. PROVISIONS 1. All facility operator• •••king coverage by thia Oener~l Permit muat aubmit an NOI for each of the faciliti they operate. Facility operator■ filing. an NOI af:!r the adoption of thl• General Permit ■hall uae the NOt form and instructi~n• (Attachment J) attached to thi ■ General Permit. Exhting facility operator■ "'ho have filed an NOI purauant to State Hater Board Order No. ,1-013-DffO <•• amended by Order Ho, t2•12•0WOI or San Franclaco Bay. Regional Hater Board Order No, 92.11 (a• amended by Order No. ,2-11,1 ■hall aubmit an abbreviated HOI form provided'by the State Wat 8 ... The abbreviated NOI form shall be aubmitted wi~~i oa.J. 45 daya of receipt. -n 2. Facility operator■ who have fUed an HOI u State Water. Board Order N~. tl•01l•DWQ <~•Pa!:~~~~ ~o Order No. 92-12-DWQI or San Francisco Bay Rei 1 WY Board Order Ho, 92•11 (as amended by Order l ona uer •hall continue to implement th~ir exiatin S~PP92·1151, •hall implement any neceeaary ,:evi ■iona t~ th 1 P and. in accordance with Section.A of thl• General; r fWP~? timely manner, but_in no case later than Au userm t -~ a Fa~ility operators beginning indu■t:rial gi 1 t. 1• is 97 • act v tlea a!:er j. 6. 7. • .. , . ..,.J,,pt 1011 of Lh\1:1 Gen~t'al Permit muet develop and irnpl~ment .in SHPl'P in accordance with Section A of this G~neral Permit when the industrial activities begin, Fadlity operators who have filed an NOt, pursuant to State Water Board Order No, 91•013-DWO ia• amended by Order No. 92-116) or San Francisco Bay Regional Hater Board Order No. 92·11 .(u amended by Order Ho, 92•116), shall continue to implement their exiating Monitoring Pt'ogram and shall implement any neceaaary reviaion• to their Monitoring Program in accordance with Section B of the General Permit in a timely manner, but in no case later than August 1, 1997. Facility operators beginning industrial activities after adoption ot. this General l't!l'mlt must deveslop and implement a Monitoring Program in accordance with Section B,of this General Permit when inJustrial activities begin. I facility operatora of feedlofslas defined in 40 CFR Pare 412 that are in full compliance with Section 2560 to scict ion 25GS, Title 23, California Code of He,311 lac 101111 (Chapter 15) will be in compliance wit.h all <!(fluent limitations and prohi~itions contained in this ~l!n~ral Permit. Facility opdrftora of feedlots that comply with Chapter 15, howeve, must perform monitoring 111 compliance Mith the requirement• of Section B,4.d, and B,14. ot. this General Permit. Facilitr operators of feedlots must al•o comP,ly with any Regiona Water Board HORs or NPDES general ~ermlt ttgulating their atorm w,1tur discharges. ! I All facility operators must comply w1th lawful 1eq111rement• of mµnicipalitieaj countiea, drainage districts, and other local agencies regarding storm wat~r discharges and non•storm,·water di1charges entering ijtorm drain aystems or other w tercoursea under their ju1·i11diction, including appliclble requirements in municipal storm water managemel\t programs developed to comply with NPOES permits iaaued by the Regional Water Boards to local ag~ncies. All facility operators must ~omply with the standard provisions and reporting requirements for each facility c:ovet·ed by this General Permit ,contained in Section C, titandard Provisions. Facility operators that operati facilities with co-located industrial activities (facilitiea that have industrial activities that meee more than one of the descriptions in Attachment ll that are contiguous to one another ar~ authorized to ·lile a single NOI to ~·omply with the General Permit. Storm water discharges •• 8. 9. lO. 11. 12. •8· • and authorized non-storm water discharges from the colocated indu»tr.ial activitie1 are authorized provld d that. the SWPl•P and Honitoring Program addreBBea ea~h co-located indu1trial activity. . Upon reiasuance of a aucceasor HPDES general pennlt by the State Water Boar~, the facility operator• subject to thi1 reiaaued Oeneral Permit may be required to fil NOI. e an Facility operator•!~ay reque1t to tenninate their coverage under thi• General Permit by filing a Notl of Termination (NOT) with the Regional Water Doard T~e HOT shall provide all documentation requested by th:e. Regional Water Board, The facility operator will ~c notified when. the NOT has bun approved, Should thi: be denied, facility operators are reaponsible for cont.inued co1npl1anc~ with the requirements of this General Permit. NOT Facility operator• who have filed an NOI, pursuant to State Water Board Order No. 91-0ll•DWQ (aa amended u Order No. 92~12) or San Francisco Bay Regional Watery Board Order No. 92•11 (u ame:,cled by ·Order No 92·ll6) shall: ' A, b. Complete the 1996-97 1ct!Vitie1 required by thode general permits, These include, but are not limited to, conducting any remai~ihg vi1ua1 observationa sample collection, annua: aite inapectlon, ~nnuai report uubmittal, and (fer.group monitoring leaders) Oroup. Evaluation Reporta1 and Comply with the requirements of thia General Permit no late~ than August 1, 1997. If the Regional Water Board determine■ that a dischar ~ may be cauaing or contributing to an exceedance of ang applicable water quality atandards contained in a y Statewide Water Quality Contro'l Plan or the applicable Regional Water Board•• Baain Plan, the Regional Water Board may ord•r the facility operator to comply with the requirement• described in Receiving Mater Limitation C,3,· Th• facility operator •hall comply with •th•· requirement• within the time echedule establi h db the Regional Water Board, 8 • Y If the facility operator determine, that its storm ~ater discharges or authorized non-storm water diecharge 6 caueing or contributing to an exceedance of any •re applicable water quality atandarde, the facility operator •hall co1nply with the requirement• described in Receiving Water Limitation C.l. lJ, State Water Board Order No, 91•013-DWQ (aa amended by order No. 92•12-0WOI and San Franciaco Bay Reg-ion&l Water Board Order No. ,1-011 <•• amended by-Order No. 92-1161 are hereby reac.lndec;I. f. REGIONAL WATER BOARD MJTHOR"ITIES l. Following adoption of thi• Oeneral Permit, Regional Water Board• ahall, a, Implement the provision• of thi• General Permit, including, but not limited to, reviewing SWPPPs, reviewing •nnual reports, conducting compliance inapectiona, and taking enforcement actions. b. Iaaue other NPDES general permit• or individual NPDES stofm water permit• aa they deem appropriate to lndiv1dual facility operator•, facility operators of specific categoriea of induatrial activitiee, or facility operatora•in a watershed or geographic area. Upon issuance of auch NPDES permit• by a Regional Water Board, the affected tacility operator shall no longer be regulated by this Oeneral Permit. Any new NPDES permit iasued· by the Regional Water Board may c~ntain different requirements than the requirements of this Oeneral Permit. 2. Regional Water Board• may provide guidance to facility operators on the SWPPP and the konitoring Program and reporting implementation, 3. Regional Water Board• may require facility operator• to conduct additional SWPPP and Monitoring Program and reporting activltiea neceaeary ~o achieve compliance with this General Permit. ' 4. Regional Water Board• may approve reque•t• from facility operator• whoee facilities include co-located induatrial activitie• that are not contiguoua -~ithin the faciliti•• !e.g., some militarr ba•~•).to comply with thi~ General Permit under a •ing e. NOI.. Storm water di•charges and authorized non••torm water diacharges'from the co-located industrial activitie• and from other sources within the facility that may generate significant quantiti•• of pollutants are authorized provided the SWPPP and -10- Honitoring Program addr••••• each co-located induetrial activity and other aourcee that may generate •ignificant quantitie• of pol~utanta, CERTIFICATION The undersigned, Administrative A••iatant to the State Water Board, doea hereby certify that the foregoing la a full, true and correct copy of•~ order duly and regularly adopted at a ' meeting of the State Hatet aeaources control Board h ld April 171 1'~7. • e on AYE1 John P, Caffrey John w, BrQwn James H. stubchaer Hare Del Piero Mary Jane Forster N01 None ABSENT; None ABSTAIN: None i • • •• SECT I Otl A: STORM WATER POI.I, PLAN REQUIREMENTS J • lLl!L'.!1 i~me.w:A~hc..du.u: A storm water pollution prevention plan (SWPPPI shall be developed and implemented for each facility covered by this Generdl Permit in accordance with the following· schedule, a, b. facility operators beginning industrial activities he fore October l, 1992 .•hall develop and implement the SW~PP no later than October 1, 1992, Facility operators beginning industrial activities after O~tober l, 1992 shall develop and implement the SWPPP wli-,n industrlal activities begin. Existing facility opera2ora that submitted a Notice of Intent (NOIJ, pursuant to State Water Resources Control Board (State Water Board) Order No, 91-013-DWQ (as amended by Order No, 92-12) or San Francisco Bay Regional Water Quality Control Board (Regional Water Bo~rd) Order No. 92•11 (as amended by Order tlo. 92·116), shllll continue to implement their existing SWPPP and shall implement any necessary revisions to thulr SWPPP Ln a timely manner, but in no case later than August 1, 1997: J. <lliJ ei:;:u. r~i The SWPPr· has two major objectivee: la) to identify and ev,1\uate sources of pollutants la•ociated with industrial ac1.lv1t1cs that may affect the quality of storm water 01uchftr~es a~d authorized non-storm water discharge• from th~ facility; and (b) to identify and implement site• specific best management practice• IBMPs) to reduce or prevent pollutants aaaociated with lhdu1trial activities in st01m water discharges and authorized non-storm water dischcll"ges,' BMPs may include a variety of pollution prevention measures or other lo~•aost and pollution control measures. They are generally clt,gorized as non-atructural BMPs (activity achedulea, prohibitions of practicea, maintenance procedures, and other low-coat meaaureal and as s~ructural BMPa (treatment meaaur$a, run-off controls, over• head coverage,) ,To achieve the■e objectives, facility operators should consider the fiv• phase process for SWPPP development and implementation•• shown in Table A, Tllt1 SWPPP·requirements are designed to be sufficiently flexible to meet the needs of various facilities, SWPPP r~qvirements that are not applidable to a facility should n.,c be included in the SW PPP. • ·12· • A facility's SUPPP is a written document that shall contain a compliance activity schedule, a description of industr1al activitiea and pollutant aourcea, description• of BMPa, drawings, maps, and relevant copies or reference, of parts of other plan■, The SHPPP •hall be revised whenever appropriate and •hall be readily available for review by facility employee1 or Regional Water Board inspectors, J. flannlna ao<! Qraooltu1Qo a. Pol Ju tJon Preventl6,n, Te.ani The SWPPf shall identify a speciflc individual or individu·ala and their poait1ona within the facility organisation·•• members of a atorm water pollution prevention team re1ponaible for developing the SWPPP • a ■aiating the facility manager in SWPPP implementati~n and reviaion, and conducting all monitoring program activitiee required in Section B of thi1 General Permit The SWPPP •hall clearly identify the General Permit • related reapon1ibilitie1, duties, and activities of each team member. For amall facilitie ■, storm water pollution prevention teama may.consist of one lndividual.where appropriate. b. Rev1ew Other RequJrement• and Ex11t1ng F•ciljcy Pl~ns The SWPPP may incorporate or reference the appropriate el'ement1 of other regulatory requiuments, Facility operators ahoµld review all local, State, and Federal re~uirementa that impact, complement, or are consistent with the requirements of thi1 General Permit. Facility operators ahould identify anr exi1ting facility plans that contain •torm water pol utant control measur•s or relate to the requirement• of thi1 Oeneral Permit, As example,, facility operator■ who•• facilities are subject to Federal Spill -l>revention Control and Countermeasures, requirements 1hould already have inatituted a plan to control •pilla of certain hazardoua materials Similarly, bcilitr operatora \olho■e.· hcilitie~ are ■ubjoct to air qua ity related permit ■ and regulations may already have evaluated industrial activities that generate duet or particulates, -I. Si ta HA.a The SWPPP shall include a •ite map, Th• site map shall b~ provided on an l•H x 11 inch or larger aheet and include notoa, legende, and other data•• appropriate to en,ure thi the site map le clear and underatandable, If neceasar t facility operator• may provide the required informatioy, multiple site mapa, non .13. TABLE A. FIVE PH,ASES FOR PEVELOPIHG ANO· IMPLEMENTING Il-IDUSTRIA.L STORM WATER POLLtrrION PREVENTION PLAN~ PLANHING A,lm ORGANIZATION • Form Pollution Prevention Team •Review other plan• l ASSESSHEtn' PHASE •Develop a •ite map • ldent i ty potential poll.utant aources •Inventory of materials and chemical• •Llst significant apilla and leaks •Jd~htify non•storm water discharges •A~»••• pollutant Ri•~• BEST MANAGEMENT PRACTICES· IDElfl'IFIGATION PHASE •Non-structural DMPs •structural BHP• •Select activity and aite-apecific BHP• l IHPLl;MENTATION PHASE •Train employees • Implement BMP• •conduct recordkeeping an~ reporting L EVALUATION/ MONITORING •Conduct annual aite evaluation •Review monitoring information •Evaluate BHP• •Review and revise SWPPP ·H· The following information •hall be included on the ■it~ map 1 a. The facility boundaries, the outline of all storm water drainage •r••• vithin the facility boundariee; portions of the drainage area impact•~ by ,:un-on fro~.aurrounding areu, and dbeet·ion· of···f·1t,~"0Ceacti drainage area, on-aite •urface wat•r bodiea, and areas of soil erosion. Th• map ahall aho iC,entUy nearby water bodiea (euch u riv•rs, lak••• ponda) and municipal atorm drain inlets where the facillt~•• •torm water diacharg■ a and · authorized non-ato1;11t water discharge• may be received, b. Th• location of the •torm water collection and conveyance •rstem, aaaociated point■ of diachar9e, and direction ot tow. Include any •tructural control meaaures that affect atol"lll,Water diacharges, authorized non-storm wat•r diachargea, ~md run-on. ExamP.l•• of structural control meaaur•• are catch baaina, berms, detention ponds, secondary containment, oil/water aeparatora, diver ■ion barrier•, etc, c .• An outline of all lmpervioua area• of the facility, including paved areaa, buildings, covered storage areaa, or other roofed ■tructurea, d. e • ,Location■ where materials are directly expo■ed to precipitation and the locations where significant 11pills or leaks identified in Section A.6,a,iv. below have occurred, Areas of ind~a:rial activity, Thia shall include the location• of all atorage area■ and •torage tanks, . • shipping and receiving areaa, fueling areas, vehicle and equipment atorage/malntenance areas, material handling and proce■■in9 areaa, waste treatment and diapoaal area,, dust or particulate generating areaa, cleaning and rinaing are••• and other areas of induatrial activity which are potential pollutant 1ource1. s. c.t,c ~C .s(an(ffca:,c MlttWll... The SWPPP •h•~l include a list of aignificant materials handled and atored at the aite, For each material on the Hat,· ducribe the location• where the material 1e being atored, received, •hipped, and handled, aa well aa the typical quantitie1 and frequency, Material, •hall include raw material•, inteniedlate product•, final or finiahed product•, recyc~•d material•, and waat• or diaposed matedala, • ... • -15• us:;;;: .dl:!.t i.Qll...at . ...£!Q.t.s:.uu.4l .... t>Jlllur.w.t.Jaua.44 ~. The SWPPP •hall include a narrative description of the facility's industrial activities, as identified in Section A:4.e above, associated potential pollutant sources, and potential pollutan'te that could be • discharged in storm water discharges or authorized non• storm water discharges. At a minimum, the following items related to a facility•• industrial activities shall be considered: i . I ndust rial Procu:ises • Describe each industrial process, the type, characterl•tica, and quantity of significant material• ueed in or re•ulting from the proce••• and a description of the manuf~cturing, cleaning, rinsing, recycling, di•poaal, or other activities related to the proce••· Where applicable, areas protected by containment structures and the corresponding containment aapacity shall be deacdbed. it. M.icerial llandling and St~rage Areas 0'e:scribe each handli'ng and atorage area, type, characterietica, and quantity of •ignificant materials handled or stored, description of the shipping, receiving, and lqading procedure1, and the spill or leak prevention and resp,onae procedure,. Where applicable, area• protected by containment structures and the corre~ponding containment capacity shall be described. 1, i. lh111t and Particulate Generating Activities Describe all industrial activities that generate dust or particulates that may b1 deposited within the facility•• boundaries and dentify their diecharga locations: the characteristics of du1t and particulate pollutants, the approximate quantity of dust and particulate pollutants that may be deposited within the facility boundaries, and• description of the primary area• of the facility where dust ~nd particulate pollutant• ·would settle. 1v. Significant Spills and l~~k• Describe materials that have ·spilled or leaked in significant quantities in storm water discharges or non-storm water discharges aince April 17, 1994. Include toxic chemicals (listed in 40 CFR, Part 302) • v. ·16• • that have been diacharged to atorm water aa reported -on U.S. Environmental Protection Agency (U.S. ~P~) Form R, and oil and hazardous subatances in exceaa of reportable quantltiea (aee 40 Code ot federal Regulat~ona (CFR), Parts 110, 117, and 302), Tho deacription •hall ·include the type characteriatics, and approx-imate quantlty of tht! material spilled or leaked, the cleanup or remedial action• that have occurred or are planned, the approximate remaining quantity of materials that may Qa expqae4 .. to. ••torm water, or,. non-a,torm water diachargea, and the preventative meaaurea taken to ensure apill or leaks do not reoccur, such li~t shall be updated as appropriate during the term of this General Permit, Non~Storm Water Oiacharge1 Facility operators •hall investigate the facility to identify all non-storm water diecharges and their sources, Ae part of thi1 investigation, all drains (inlets •r:id outlets) shdl be evaluated to ide11tif whether they connect to tha storm drain system. y All non•atorm water discharge■ ■hall be desc il"d Thia •hall include the ■ource quanti•y f r >e • a d ch t i i • , ~ • requi:ncy • n arac er at c11 o. the non•atorm water di ·t and a1 ■ociated'drainage area. sc ,arges Non-storm water discharge, that cont1in. significant quant;tlu of pollutant• or that do r.ot meet the conditions provided in Special Conditions o prohibited by this General Permit (Examplt:."o~re prohibited non-atorm water diacharges are contact and non-contact cooling water, boiler blowdown ri water, waah water, etc.). Non•■torm water'dis~~:r cs that meet the condition■ provided in Special 9 Condition D. are authorized by this General Pet•mit, The SWPPP muat include BH~• to prever.: or reduce contact o~ non•atorm water diacharges with aigniflcant materiala or.equipment, vi. Soil Erosion Deacribe th• facility locations where ■oil erosion may occur aa a result of induatrial activi water diachargea •••ociated with induatria~Y, storm or authorized non•st~rm water diachargea. activity, b. The SWPPP shall include a :aummary of all areas of industrial activities, potential pollutan· ~ •ource~, and 8 8 i "4 tl " k "4 ii1 >, • I' ... >, -17· • .. ~ al I ~1 2 I :1 t ... u ... µot1rntial pollutant•. Thia lnformat·lon aho1,1ld ba e Ii ~t ... I!. e I!. .... summarhed •imihr to •rable B, Th• laat tolumn of ft i 0 i: -~ k 0 ~~ T.iblt! B, "Control P1·•ct icea", •hould be completed· in II If 0 ... II • _! C. • t "4 II. = "'O ~cco1dance with Section A.8. below. "4 u" e-11.C • t: " ..... = I,. :•j·::! II": ! E i! " r1 k 0 ci.& 7 ~~~~~~111.~.nt of Pot~~w..l,_l!all.u..t.4pt sourcct .. p ![ ... Ir'"' ":I .. .. 1 !! ! a :::t t51 a. The SWPPP •hall include a narrative ••••••ment of all I ~! "'t .. .... ., II, t u" ... .,. II industrial activitie• and potential ~ollutant sources as ... I IJ 11, .. ~ ... ~ ... u ... ~ ... -~ tl h 1n t£ t *: described in A.6. above to determine: ·l " ... • .. ~ 0 " A •!II ..... '"'2-!1 u B i; ... i I, Which areas of the facility are likely aource• of BB s i] !I . ..... ~ .. i:1 !88 .. ! • pollutant• in •torm water dbcharge• and authorized .. t: ... ~ non••torm water discharges, and ! sE • ' ' I I I • I 11 Which pol lutante are likely to be preaent in atorm water diacharges and •~thorized non-storm water ti)~ .. fJ ucharge•. Facility operator• •hall consider and alii. evaluate various factors when performing this .. assessment such as current •torm water BHP•1 ~ quantities ot aignificant materials handled, produced, stored, or disposed o(; likelihood of ~r .. exposul'e tQ storm water or auth~rlzed non-storm water ~ ~ ·5 ... ... ... "4 ... ... ... d1schargea; history of spill or le~k•1 and run•on u' ... ... 0 0 0 ... trom outside sources. I ~ ~ ~ (' 0 co 1§1 ... i ... ... ... rf I I ... I a f ! ! b. f'.icil.1ty operators shall summarize the· areas of the ... ... ... ... ... (ac1llty that are likely aourcu of pollutant·• and the .:orl'esponcHng pollutant• that are likely to be present in I l • 0 1.tlH'm water discharges, and authorized non-storm water ~-... .. " ,I I sch.1r9es, • • ... g ~ f .. 0 ~8 I jr.-l' ... II • ~ " are required to 1! II _§' .. _Jg- f'ar1l1ty operators develop and implement OI 0~ ... : ~ Jdu1t1onal BHP• as appropriate and neceaaary to prevent "4 l i §:: 11 0 c.r 1·educ:e pollutant• uaocia.ted with each pollutant .. u: .. I, .. ! h II uo • " ... ,,;.:,urce. The BHP• will be narratively described ·in .. ~!' ... .. .. :: I' !~ Z' Se,:tion a below. ;S • r-;::: ... ii. ~J .. ......... 0 ·i " I! 3 i; ... i: 8 St"u.m._ ,;.., ccc Due n,naacrocac erac_tku ~8 "'u ·:: ;·; l ....... " The SWPPP •hall include a narrative ducriptioo of the stQrm ~ water BMP• to be implemented at the facility for each h' potential pollutant-and it• •ource·identified in the site !' assesament_phase (Sections A,6, and 7, above). Th• BHP• ';! "4 ... shall be developed and implemented to reduce or prevent i ! pc,llutants in storm water dlachargea and authorized non- storm water discharge•. Each pollutant and it• source may re11u ire one or more BHP•. Some !!MPs may be implemented for ' multiple pollutant• and their sources, while other BHP• will be implemented for a very· specific pollutant and it• source. .... .. ~ii .. ...... 1 .r:1• : l. ... , ......... Kl. • /--~.,{ r• ... " .... ~ . • !.-. ) -: --~; ........ • ·19- Tlle tle::1cr I pc 10n of the llMPtt ahal l identify the BHP• as <ll existing BMPs, (21 existing DMPs to be revised and implemented, or (JI new BHPa to be implemented. Tho description shall also include a discussion on the effectiveness of each BHP to reduce or prevent pollutants in storm water di1ch1rgos and J11thori2ed non-storm watef discharges. The SWPPP shall provide a summary of all BMP:i implemented for each pollutant source, This information should be summarized similar to. Table B. Facility operators ahall consider the follo~ing BMPa for 1mplemdntatlon at the facility: • 1. Non• St ruct.ura l BMPs No~•structural BHP• generally consist of proce1aes, prohibitions procedures, schedule of activities, etc,,.that prevent poll~tants associated with industrial activity from concactlng with atorm water discharge■ and authorized non• storm water discharges. They are donsidered low technology, cost-effective measures. Facility operator• should consider all possible non-structural BMPs options before considering adtlitional struct4ral BHP& (see Section A.8.b, below). Below 1s a llsc of non-structural BMPs that should be considered: l. Good Housekeeping G,11·111 hou"lekeeping generally consist of p,ractical procedures to maintain a clean a.nd ·orderly facility. 11. P1eventive Maintenance Preventive maintenance includes the regular inopection and maintenance 'of structural storm water .:-1,ntrol1 (catch basins, oil/water separators, etc.) a~ well as other facility equipment and systems. ' 111 Splll Response This includes spill clean-up procedures and necessary clean-up equipment bdsed upon the quantities and locations Qf significant materials that may spill or l~ak. iv, Material Handling and S~orage This .includes all procedurds to minimize the potential for spills and leaks and to minimize exposure of significant materials to storm water and authoriied non-storm water discharges. • -:20-• v. Employo_.r Training Thia includes training of per1onnel who are re,pon•ipl• for (1) implementing activities identified in the SHPPP, (2) conducting inspectiona, sampling, and vl1ual obaervationa, and (3) managing storm water, Training ahould address topics such as spill response, good hou1ekeeping, and material handling procedur••• and actlona nece1aary to implement all B~P• identified in the SWPPP. Th~ SWPPP •ha 11 idef}t.ify periodic date■ for such training. Records •hall be maintained of all training 1e1aiona held • ' I , vi. Wute llandling/Rocycl,ing Thia include ■ the procedure• or·proce,■es to handle, ltore, or dispoae of waste materials or recyclable materials. vii. Recordkeeping and Internal Reporting ··Thia includu the proc·edurea to en1ure that a 11 record■ of ln1pectiona, spill ■, maintenance activitie1, corrective action■, viaual observations etc., are developed, retained, and provided, as ' nece1sary, to the appropriate facility personnel, viii. Ero•ion Control and Site Stabilization ix. x. Thi• includes a de ■cription of all •ediment and ero1ion control activiti••· Thi■ may include the planting and maint•nance of veg•tation, diver■ion of run~on and runoff, placement of aandbaga, silt •creens, or other ••dimont control devicea, etc, Inspection■ This includes, in addition to the preventative maintenance inspe~tiona identified above, an inspection •ch•dul• of all p~t•ntial pollutant source ■, Tracking and follow-up procedures shall be deacribed·to enaure adequate corrective actlona are taken and SHPPPa are made. · Quality Aasurance This include, the procedures to en1ure that .all elements or the SWPPP and Monitoring Program ar adequately conducted, e I.,. ·ll •• ::tnu.:tural fll-lPa Hhc!J'«= non-structun1l ar,n>a 1111 identified ·10 Section A.a.a. .,.1,,we a1·e not •ffective, ■tructural BHP• ■hall be ~onsidered. Structural BHP• generally con•i•t of ~tructural devic~• that redµce 9r prevent pollutant• in :itonn watel' llischargea 1&nd authorized non-atorm water <lischargea. Below is a 11st of atructural BHP• that i; 11,,11 l d be _-:1,ns I de red : i. 1..iv~rhe.id Cuvura4:111 This inrlude11 atruccurea that provide'horhontal cnvera e of material», cihemicala, and pollutant sources (. on, c~ntact with 11to1m water and authorized non-stor;n w,,ttll' diucha19es, 11. R,icention Ponds '1'l11:1 Jnc:ludea basins, ponda, ■urface impoundments, turmed ~reas, ecc., that do ~ot allow storm water to .J1sch,.-u9e frorn the facility. 111. ,~~•nr1ol Devices Tl.Lil 111cludes berms Qr other devices that channe:l or i..-111 e run-on and runoff away from pollutant sourcel! • i" Sec.:111dai·y Cont a i nmenc Structurtts Thi» generally includes containment structures around sto1.:19e tanks and other areai ·for the purpoae of c"llecting any leaka or apilla, v. Treatment Thia includes inlet control ■! infUti:ation devicu, oil/water separators, detent on pond■, vegetative swalea, etc,, that r•duce the pollutant• in atorm water ducharges and authorized n~n-atorm water diacharges. s. hnnu.1LJ:llllmwims i ve s i.U....CamoJ iooco Evaluat.,iClll The facility operator shall conduct one comprehensive site cqmpliance evaluation (evalu~tion) in each reporting pt:I'iod (July l•June 30) , Evaluation• ■hall be conducted w1chtn 8•16 month• of each other, The SWPPP ahall be revised, as appropriate, and the revisions implemented within 90 days of the evaluati.on. Evaluations shall i11c:ludt1 the follo~ing: 10, /":7'',~ . . ,. •-··· a. b . c. d. A r•view of all vhual obaervation records, inupect ion r•corda, and s•mpling and analyai• re■ult ■. A vi■ual lnapection of all potential pollutant uource~ for evidence of, or the potential for, 'pollutant11 er.t•,:ing the dralnage aystem, A review. and evaluation of all BHPII (both structural and non-•'tructural) to dater111ine \lhether the DH~>• are adeq\iate, properly implemented and maintained, or whether additional. BHPa are nHded, A visual inapection of equipment needed to implement the SWPPP, auch ~• •Plll rupon·ae eq~ipment, ■hall be incl11_<,led, An 'evaluation report that inclu4ea, (11 identification ot peraonnel performing the evaluation, (ii) the date(a) ~f'the evaluation,· (iii) neceaaary SWPPP revhiona, (iv) schedule, u required in Secti.on A,10.e, for implementing SWPPP reviaion1, (vi any incident• of non-compliance and the corrective •ctiona taken, .and (vi) a certification that the facility operator h ln compliance with thh Oenenl Perrnit, t f th• above certificaticm cannot be provided, explain in the evaluation report why the facility operator is not in compliance with this Oeneral Permit. The eval~ation report •hall be 1ubmitted u part of the annual report, retained for at leaet five yeara, and aigned and certltied in accordance with Standard Provisionu ,. 1ncJ 10, of Section C, of thia Oeneral Permit, sweee ·acp«col Btauiccrn,aca I a. The SWPPl• shall be retained on aite and made avalhbh upon request of a repruentativejof the Regional WatuBoard and/or local •tor• water management agency (local agency) which receives the 1torm water discharg••, b, The Regional Water Board and/or local agency may notify the facility operator when the SWPPP does not meet one or more of the minimum tequirementa ot thi• Section, • A• requHted by the Regional Water Board and/or local agency, tha facilitI operator •hall aubmlt an SKPPP revieion and imp •m•htation achedµle that meet• the minimum requirement■ of this section to the Regional Kater Board and/or local agency that requeated the SNPPP revi,ion■. Within 14 day■ after implementing the.required SWPPP revieiona, the , facility operator ■hall provide written certification to the Regional Hater Board and/or local agency that the reviMiona have been ifnp'lemented. • • c, The SWPPP shall be1 revised, All appropriate, and implemented prior to changes in induatrial activities which (il may significantly increase the guantitie• of pollutants in storm water diacharge, (ii) cauae a new area of industrial activity at the facility to be exposed to storm water, or (iii) begin an induatrial activity which would' introduce a new pollutant aource ~t the facility. d. Other than as provided in Provisions 8.11, B.12, and E.2 of the General Permit, the SWPPP shall be revised and implemented in a timely manner, but in no caae more than 90 days aft~r a facility operator determines that the SWPPP is in violation of any requirement(&) of this General Permit. e. When any part of the SWPPP ia infeuible to implement by the deadlines specified in Proviaion E.2 or Sections A.l, A.9, A.10.c, and A.10.d of thia Oeneral Permit due to proposed significant atructural changes, the facility operator aha;ll aubmit a report to the R~qional Water Board pri~•to the applicable deadline that ( 1 l describes the porcion of the SWPPP that is 1n(euible to imphment by the deadline, (ii) provides j11sc if ication for a time extension, (iii) prov idea a schedule for completing and implementing th,t portion ot the SWPPP, and (iv) deacrlbe1 the BHP• that will be implemented in·the interim period to reduce or prevent pollutants in storm water discharges and authorized non•storm water discharges. such reports are subject co Regional Water Board approval and/or modifications. ra.:ility operators shall provide written notification lO the Regional Water Board within 14 days after the SH~PP revisions are implemented. The SWPPP shall be provided, upon request, to the Regional Water Board. The SWPPP is considered a rep,,rc r. hat aha 11 be ava 1 lable to the public by the Regional Water ~oard under Section 308(b) of the Clean l·hHer Act. ,'~ •• • ·:24- SECTION B. HONI1'0fUHO PROOR>.H AllD REPORTING REQUIREMENTS 1. lmotcrocotA.t(ao s¼h4.du.l.c Each facility operator ahall develop a writtan monitoring program for each facility covered by thi• Oeneral Permit in accordance with the following achedula1 a. b, Facility ope-ratora baginning industrial actividea before October 1, 1992 •hdl develop and implement a monitoring program no later thtn October 1, ltt2, Facility operators beginning•oparationa after October 1, 1992 ahall .develop and implement a monitoring -program when the industrial activities begin. Facility operators that submitted a Notice Of Intent (NOI) pursuant to State Water Resources Control Board (State Water Board) Order No, tl•Oll•DWO (aa amended by order No. 92•121 or San Franciaco Bay Regional Water Quality control Board (Regional Nater Boardl Order No, 9l•ll (aa amended by Order No, Sl•ll6), ahall continue to implement their existing mbnitoring program and implement any nec•••ary reviaion• to their monitoring program in a timely manner, but in no case later than Auguat 1, U9'7', TheH facility operators may uu the monitoring r•aulta conducted in accordance with those expired ganeral permit• to aatiafy th• pollutant/parameter r•duction requirement• in Section B.S.c,, Sampling and Analy•i• Exemption• and Reduction certification• in Section B.12., and Group Monitoring Sampling credit• in B,15.k. For facilities beginning induatrial activiti•• after the adoption of this General Permit, the monitoring program shall be developed and. . implemented-when the facility begina·the industrial activities, 2. Qbjectfvu The objectiv.e1 of the monitoring program are to1 a. Ensure that atorm water diachargea are in compliance with the Di•charge Prohibitiona, Effluent Limitations, and Receiving Water Limitation• specified in thia General Permit, • b. Ensure practice• at t~• facility to reduce or prevent pollutant• in storm water diachatges and authorized non storm water diacharge• are avalu11ted and revised to meet changing conditiona, c. Aid in the impleniantation and revision of the SWPPP required by Section A of this General Permit. ) . •25• d. M~a1.1u re the e {f ect i vc11e•• of b,u1t managttment pr&cticaa (UMPs) co prevent or reduce poll1,1tanta in wtorm water .:)ischa1gea .ind authod:z:ed non•atorm \:lllter diachargaa. Much t.,t the inConnat II.lo nec.saaary to dc&valop the 1i.0111toring prog'r,un, u11.::h aa di-acharge locationa, drainage ;, 1·c.1 ::1, po 11 utant aoul'ce11, etc., ahould be found in th• Stotm \·I.Her Polh1tio11 Pt·•vention Plan (SWPPP). The t.:ac1licy•11 monitoring 'progrilm »hall be a written, aite• i;pec1tic document th.tt ahall b1t reviattd whenever bpprapriate and be r~adily available tor review by cmplo1•ces or Regional l~ater Board !nwpectora. NOii • :i.tC!.l/U.!iJ ,s:.r...OJ..li.~l1Jl t.11L'li:iJJ,,lL1l/2,U.r.YAticµJj J. r.,c-1 lity ope1·J1ton1 ahall vhually 9baerve all ·drainage Jl'u,u within th1dr t.1cilitiee tor the preaence of un,,11r.hc,n zed nr.m•lltorm water diachargea; b. F.i...1 l it.y or.,11r.1to1·1 ahall viaually 0~11erve th• IJnlity•s authc;>riied non-storm wat1tr discharges and rt1r,1r s,.,urcea; Th,: vi:111.:al observation• required above ah.111 occ1,1r •111,,nf:rt•r, durtng daylight hours, oo daya with no atorm w II o:r 11iochar9es. and during ached1,1led facility ,,pt:1 at Ing hour•'. Quarterly vbual obaervationa ahall I,.: conducted in each ot the• fol lowing period• 1 J,1111a'ary•J-1arch, April-June, July-September, &nd Ocr.ober• nc,:ember. Facility operators •hall condµct quarterly viuual obs..irvationa within 6-18 week-a of each other. ,1 V1:.111l observ,tions shall document the presence ot any dis,:olorat!ons, stains, odora, floating materi&la, t'LC , aa well •• the aource of any dlacharge. Record• shall be maintained ot the viaual oba~rvation datea, locations observed, obaervationa, and reaponae taken to eliminate unauthuri%ed non-atorM water diachargea and c~ reduce ~r prevent pollutant• from contacting non• srorm water duchargea. Th• SWPPP. shall be reviaed, •• necessary, and implementea in accordance with Section A of this General Permit. "Schedulftd facility operating houra• are the time period• when the facility ia ataf.fed to conduct any function related to induatrial activity, but excluding time peri.oda where only routine 111aintenance, emergency responae, aecurity, and/or janitorial •~rvicea are performed. -:2,. • • S.t.!lna..Ji41:AL!lU.clJ4,mLl!bual Ob1cu:v, tfon.1. a. With the exception of tho•• facilit.iaa deacribad in Section 8.4,d,' b&low, facility operator• •hall viaually obaarve atorrn water dhchargaa from one atorm event pe.r month during .th• wet Huon (October 1-Hay JO). Thoe viaual observation■ •hall occur during the firat hour ot oiacha~ge and at all diacharge location•. Vlaual obaervationa of atored o~ contained atOX'111 water •hall occur at the time of releaae, I ~. Viaual ~b••rvation■ ~r• only required of atonn water dhchargH that occur during daylight hour■ that ua preceded by•~ lea•t three (l) working day■1 without atorm wat•r dlachargea and that occur during acheduled facility opetating houra.· c, Viaual obaervat.ion• •hall document th• praaenca of any floating and auapended mat.•·rlal, oil and greaac, diacoloratlonM, turbiditr, odor, and aourc• of any pollutanr.11, R•c~rda ·aha l be mnint&ined ot obaervat ion dataa, location• ~b•erved, obaervationa, -.nd reapon•• taken to reduce or prevent poll~tanta in atorm water diach•rgea. T)le SWPPP •hall be reviaed, aa necuaary and impla111ent:ed in accordance with Section A of thil ' Oeneral Permit, d. Fudlota ·(aubject to Fedar&l effluent limitation■ guidelinH in 40 Coc:J• !)f Federal Regulation• (CFRI Part 412) that are in CO!hpliance with Section■ 2s,o to :25'5, Article ,_. Chapter 15, Title 23, California Code of Regulation•, •nc:t·facility operator• with atorm water containment tacilitiea ahall condue-t ·aonthly lnapectlon• of their containment area• to detect leak• and enaura maintenance of adequate freeboard, Record• •hall be maintained of the Jnapection dat••• obaervationa, and any raaponae tak•n to eli•inate laaka and to aaintain adequate treaboard. s. ~moJ. fag 40<;f An4.Ju.u a. Facility operator• •hall collect atorm water aamples during th• firat hour of diacharge fro• (1) the first. ator~ event of th• vet ••••on, and (2) at leaat one other etorm •vent in the wet ••••on. All etora water di ■charge location• •hall b& •a•plad .. sampling of atored or contained ato~ water ■hall occur at the time the stored > Three (Jl_ working daya may be aeparated by non•working daya auch aa weekend• and holJdaya provided that no ■torm water diachar9ea.occur during the three (3) working d and the non-working daya. •Y• •• ·:!1· nr .::ontal11,HI storm woti:r ia released. Facility operators 1 h,ic do not collect 1:1.runplea from thti firat ato~m event of Lh~ w,H. 11eason are all 11 requin1d to collect samples from Lwo other storm events of the wet season and shall explain in the Annual Report why the first storm event Wall not sampled. • '.i. sample collection is only required of atorm· water discharges that occur during acheduled facility operating hours and that are preceded by at least (3) three working days without storm water discharge, ' •~. The sampleo shall he analyiad for: i. T,·,tal suspended solids (1'SSI pll, specific ,:nndu,:tance, ""cl total organic carbon IT'!Cl, Oi 1 and grease 10,01 may be ~ubstituted for 10C; and ii. Toxic chemicals and othe~ ~ollutant• that are likely to be preaent in storm water discharges in 51 gnlficant quantities. If these pollutant• »re not detected in significant quantities after two cnnsecutive sampling eventa, the facility operator m3 y eliminate the pollutant from future sample analysis until the pollutant la likely to be present a9aln; and 1 ii. ocher analytical parameter• aa ll~ted in Table D (located at the end of thi• Section), These parameters are dependent on the facility•• atandard industrial classification (SIC) code, Facility 0 erators are not requirtd to analyze a parameter l~sted in Table o when the parameter is not already re uired to be analyied pursuant to Section B,5,c,i. and ii. or e. 6 of thie General Permit, and either of the two following conditions are met, (l) the arameter ha• not been d•tected in aignificant ~uantltiea from the la•t two consecutive sampling events or (2) the param~ter ia not likely to be reaen~ in storm wate~~ischarges and Authorized ~on-storm water discharges in aignificant quant}ti~s based upon the facility operator'• evaluation o t e facilities industrial activities, potential pollutant sources, and SWPPP, Facility operators that do not analyie for the applicable Table D parameters shall certify in the Annual Report that the above conditions have been satisfied. iv. other parameters as required by the Regional Water Doar<.1. • ·28· 6. f.a.afl i c (u s~at to fcdual stonn b'4tar t:fflueot I.Jrott:o~lao auidul.ln.u Facility operator• with t~cilitlea aub1•ct to Federal storm \.later effluent limitation guidelinu, n addition to the requirement• in Section D,5, above, muat complete the following, a, Collect and analyze two aample• tor any pollutant apecifie4 in t·he appropriate category of -to CFR subchapter N, The aampling and analy•i• exemption& and reduction• ducribe4 in Section s,'12, of thia General Permit do no,t •pply',to theae pollutants. b. Estimate or calculate the volume of ■torm water discharges from each drainage area, . • C', Estimat·e or calculate the mus of each raguhted pollutant•• defined in the. •ppropriata category-of 40 CFR Subchapter N1 and d. Identify tha indivldual(a) performing th■ eatimatea or calculations in •ccordance with Suba~ction~ b, and c. above, 7. s~wlc Stonn Water Ql1ch4rac Locatlao• a.· Facility operaton ahall vhually observe and collect sample• of atorm water diachargea from all drainage 1.reu th&t repreaent the quality and quantity of the facility•• storm water diachargea from tha atorm event, b. If the facillty•a atom water diachargea are commingled with run-on from aurround1ng areas,'the facility open.tor· ahould identify • other visual obaervul.on and sample collection location• that have not been commingled by run-on and that repreaent the quality and quantity of ~h• facility•• ■torm water di•charge■ from th• atorm event. c. If visual observation and sample collection locationa are difficult to obHrve or sample (e.g., aheet flow, submerged outfalls), .fac;Uity op4r,.t.on shall identify and collect sample• from other locations that repreaent •th• quality and quantity of the facility•• storm water discharge• from the atom event. d. Facility operators that determine that the indu1trial activities and BHP• within two or more drainage areas are substantially identical may either (ii collect· samples from a reduced number of •ubatantially identica1 II. '.I •29· d1·aln.i9e .area», Ol' (ii) col1*ct umplea frorl\ eaci, suhdLantl.ally identlc~l drainage area and an;alyxc a combint1J .u1nplu fl'om •• ch aubat.ntially identical dr~1n.agu area. Fagillty operator• muat document such a d.,c-,rminacion In lht! .. 11nuill repc,rt. 1' 1 i u J l . .ill!u.r.Y4L..i..c;m,.,,111J .. S,1uw,lLcalls:atlDIL.!K£.io.t1!lIJ1 F.1,:1 I 1t.y op.srAtora u·.e rcquir11J to be prepared to collect SJmplc:ll and conduct vl11ual. ob11ervationa at th11 b•ginning of th-, wet season (October 1) And throughout the wet ••••on 1111ti l the mlnimun1 re')uircmenta of Section• B.4. and B.S. AU ,:.,mpl.:ted with the fcJl lowing exceptions, • I, I, t-ci l icy operator 1a not required to collect a sample c111d conduct viau~i ob111ervationa in accordance with ~:;,,,.~t I on D. 4 and Sect ion B. 5 due to dangerous weather .:-,.111dlLl011s, such as flooding, electrical storm, etc., wluin storm wat·er diacharg•s begin after scheduled t.i.:ility operating houra or wh11n storm water diachuges dt,: not preceded by three working days without d111char9t!. Visual ob111erv;ation11 are only required dunng daylight houra. YAcility pperatora that do not .:,,Hect the reguil·ed aamplu or visual observations during a wet season due to the•• exceptions ahAll l n..:l ude a.n explanation in the A,nnual Report why the s,1111pl ing or visuill obu,rvations could not be conduccec;I. A t~cility operator may cohduct visual observations and s.1111p le col l'ect ion rnor• than on1t hour After dhcharge b.-<J rns if the faci lit.y opentor det·erminea that the ~bj~ctives of this Section will be better satisfied. Th.: facility operator shall include an explanation in l he Annual Report why the \rhual observations and !.i;1111p le collection 11hould ,.be conducted after the f i rat 111,ur of discharge. .; l L c.rn.1 c~aa.Luu:ln!L..Craia.dul:u f'j..:llity operators may propose an alternative monitoring f•Logram that meets Section 8.2 monitoring program objectives for apprcval by the Regional W!ter Board. Facility op.:ratora ahall continu~ to co111ply with the monltoring rt:quirt!ment• of this Section and may not implement an alternative monitoring plan until 'the alternative monitoring plan is approved by the Regionil Water Board. Alternative m,>nitoring plans are subject to modification by the Regional W,1t er Boards. 10. 11. ·30• llunl.,r.IlrJ nCLllJtt.htuu a. Facility opi,ratora ahall explain how the hcility•a monito-rlng progra• 1o1ill utidy the 1110nitorin9 proorain objectives of Section B.l. Thia shall include: i. Ration~_l_~ -~-~~-~•!.Cfip~lon al . .the .. vhud. obliervat ic;>n 111ctthod11, locatfon, and frequency, ii. Rationale and description ot the sampling muhoda, location, •n1 frequency, and .iii. Identificatlon'of the analytical methods and corr•*ponding ••thod detection limits used to .detect pollutants in storm w.ater dhch.argea. This shall include justification that the method detactiqn li•its are adequate to satisfy the objectives of the monitoring progr.am, b. All •ampling and ~•mple preservation shall be in accordance ~ith the current edition of •standard Hdthods for the Examination of Water and Wact~water• (Americ&n Public Health Aaaoci&tion) • All· monitoring inatru1nenta and equipmart (including a facilitr operator•• own, field instrument• for 111uauring pH and E ectro Conductivity) shall be calibra_t•d and 11\aint&incd in accordance wit·h manufa~turara• ap,ecificationa to enaurc accurate meaauramenr;.a, All laborat-ory analyses must be conducted according to teat procedures under 40 CFR P•rt 136 unlua oth•r te•t procedures have been apecit led 1:, this General Permit or by the Regional Hater Bo•rd. All metals ahall'ba reported as total ••tala. With the exception of analyaia conducted by f~cllity operator,, all laboratory analyaea •hall be conducted At• l,1boratory certified for cuch analY••• by the state Dcpart••nt of Health Services. Facility operators m•y conduc~. thdr own Hllph analr--· if the facility operator ha• sufficient capab llty (qualified employees, laboratory-equipment, ate.) to adequately perform the teat procadurea. Tn,occl-v1 Htoina aa«c,tiooa Inactive mining operation■ arc defined in Attachment 1 oC this General Per~it. Whcr• CQ/llprehanaive cite .compli&nce evaluationa, non-atona water discharge visual obaervationa storm water diacharga vlaual obaervations, and storm water' sampling are lmpracticabh, facility operators of inacti· minlng,opcratlona uy inatcad obtain certification once ,e • every three yeara by a Regiatcr•d Profeaaionai Engineer that an SWPPP baa b••n prepared for th• facility and is being imp~emented in accordance with the requirements of this General Permit. By •••n• of th••• certifications, th~ l 2 . •• f<e<Jist.,1cd Prote111;1ional Engineer having examined the facility and being familiar with the proviaiona of this Gc:ne ra l Permit aha 11 at teat that the SW PPP haa been prepared in accol'Jance with good 1mgineering pncticaa,· Facility opel'ators of mining operations who cannot obtain a certification because of noncompliance must notify th• appropriate Regi,onal Water Board and, upon request, the local •gency which receives the storm water discharge. ~ d mcl.i II t.!JDd.-And.~.tiL.tx~mnr..innLAJ\d RO duct ion I II Caci llty operator ..,ho qualifiea f.or aamp~ing and analysis exempc1ons, aa described below in Section B.12.a.i., or who qual1fius for 1·educed sampling and analyala, aa described below 111 Sect1on.B,12.b., must submit the appropriate cerclf 1~atlons and required documentation to the Regional WHer 1.,ardo prior to the wet aeuon (October ll and recertify as part of the Annual Report submittal. A faci\1t;• operator that qualifies for either the Regional Water 0~ard or local agency cerlification programs, as descrihuJ below in Section B.12,a.ii. and iii,, ahall submit cercili~ation and documentation in accordance with the requ i rt!,11t:nts of those programs, Facility operator• who provide certifications in accordance with this Section are sci! l [c:quired to comply with all other monitoring program anJ r~pl1rting requirements. Facility operators shall prepar.: and submit their curtifications using forma and inscru~L1ons provided by the State Water Board, Regional Water B0ard, or local agency pr ahall submit their 1n(onnJc ion on a form that contain• equivalent information. ~d~I l1ty operators whose facility no longer meet• the r.ertifi,:ation conditions must notify the Regional Wat:er Bo.:irdl,j land local agency) wlth'in 30 daya and immediat:ely comply with the Section B.S. sampling and analyah rc:qu1r.:11,11nts. Should a Regional Water Board (or local aqencyl determine that: a certification does not meet the concJ I c ions set forth below, facility operat:ors must in1111.:diar11ly comply with the Sectibt1 B,S. sampling ·and a,i.,lyuis requirements. a s.~1111,l ing and Analysis Exemptions A facility operator is not required to collect and analyze samples in accordance with Section B.S. if the facility operator meets al~ of the conditions of one of the following certification programa1 i' 110 Exposure Certification (UEC) This exemption is designed primarily for those facilities where all industrial activities are co~ducted inside buildings and where all materials stored and handled are not exposed to storm water. • ·32- •ro qualify for thia exemption, facility oparatora nwst cortify that thelr facilltiea meet all of the following conditiona1 . (l) All prohibited non-a.term \later dlechargea have bo•n eliminated or othen,i•e permitted. (J) All authorized'non•atorm water discharges have bbdn identified and addreMaftd·in the SWPPP, (3) (,t)' (S) . (7) All area•• of paat exposure have been and el•a~ed, as appropriate .. _All !~!ml'f.ica.nt m~t;~,~J~l,-1,. related to activity (including waste 'm&terialsl exposed to atorm water or authorized wat.er diachargea, inspected industrial are not non-storm All industrial activities and industrial equipment are not exposed to storm wat~r or author.ized non-storm water diacharges. There is no expoaura of atorm water to algnificant material• asaociated with in~ustrial activity through other direct or indirect pathways such•• from industrial activities that generate dust and particulates. There ia periodic re-evaluation of the facility to ensure conditions (1), (ll, (-tl, (51, and (6) above are continuoualy mat. At a minimum re-evaluation shall be conducted once a yea~.' Ragion~l H~ter Boara Certification Programs The Regional Water Board may grant an extimption to the Section D.S. Sampling and Analyaia Requirements if it determines a facility operator haa met the· ·conditions aet forth in a Regional Water Board certifi·cation program. Regional Water Board certification programs may include conditions to (1) exempt facil.ity operators whou facilitiea infrequently diacharge storm water to watera of the United States, and (J) exempt facility operators that demonatrate compliance with the terms and conditions of thia General Pemit. iii. Local Agency Cer0tif1cationa A local' agency may develop a local agency certification program. Such programs must be approved by the Regional Water Board. An approv~d local agency program may either grant an exempti~n .J)• Crom the Sectlon 8,5. Sampling and >.nalyda Requirement• or r•duc• th• fr.aqu•ncy o'C umpllng if it determinu that a hcilit-y operator hu demonatrated compliance with thet term• and condition• of this O•neral Permit. b. Sanipl ing and Analysis• H.aduction i. i 1 , 11. facility operator may reduc.s th• nurnber of sampling events required to be aampled for the remaining ter1n of _thia Oeneral Permit if the facility operator provide• c•rtification that the following conditic:>na have been met1· Ill The facility operator hu collecced·and analyze!i umph• from a minimum of •ix storm events from all required drainage areaa; 121 I)) 141 ISi All prc:>hlbited non•atorm water diachargea have been eliminated qr othe·rwhe permitted; The faci l icy operator demonatratu cqmpliance with the term» and condition• of the Oen•ral Permit for the previou• two year• (i.e., completed Annual Report•, performed viaual observations, implemented appropriate BMPs, etc,11 • The facility operator demonatratea 't~at the facility•• 111:orm water di.achargH and . authorized non•atorm water diacharge• do not cc;>ntilin aignificant: quantitiu of pollutanta1 and condition• (2), (3), and (4) above are expected co r•main in effect for a minimum of one year after filing the certification, Unle•• otherwiae inatruct•d.by the Regional Water Board, facility operator• ahall collect and analyze sample• from two additional atorm event• during the remaining term of thia General Permit in accordance with Table c below. Facility operator• ahall collect aample• of.the fi~•t atorM event of th• wet sea3on. Facility operator• that do not collect samples from the firat,atorm •vent of the wet aeaaon shall collect aamplea from another atorm event during the aam• wet aeaaon, Facility operz,tor• that: do not collect a sample in a required W4t aeaaon sh.iall collect the aa111ple from another atorm even:. in the next. wet aea11on. Facility opera.tor• ahall exp0lain in the Annual Report why the first storm event of a wet aeaaon waa not aampled or a aample ~•• not taken fro• any atol'lll event in accordance with the Table C achedule. Table-C REDUCED MONITORING SAMPLING SCHEDULE racil1ty Oparator ••11pl•• 1"-11 be Collected and An•lyaed 1n Th••• W•t ••••on• • f1 ling h1111,lin9 Reduction aa111ple 1 luph 2 Cn-tU1cat1on ly u,, I 1, u;;.Ha.; ll' Seot., l Oct., UH OCt, 1 UH•Hav 31 2000 Sept. l, un oct. 1. uu~Hav J1 uu Oct, 1, 2000•Hav ll. 2001 Seot, 1. un Oct, 1, UU•Hav 11•, 2000 Oct.. l 200l•H•v 31 2002 Seot. 1. 2000 oct .. l 200ll•H&Y ll, 2001 ~t. 1, 2002•Hav )1 2001 Sept, l, 200\ Oct, 1, 2001-Hay n. 2002 Oct., l, 200l•Hay 11, 2004 l 3 . ' B.daru:.dl Record• of all ,torm water monitoring information and copies of all reporta. (including th• Annual Reports) required by thi• General P•ntit ahall be retained for a period of at lea~t five yeara. TheH r■forda a:1all include, a. Th• date, place, and time of ait•· inapactiona, aampling, viaual obaervationa, and/or meaaurementa1 b. Th• individua).(a) who performed the aite in•pectiona, aampling, vh.ual obaervationa, and or 11eaaurementa 1 c, Flow meaaur•menta or ••timata• (if r•quired by section a.,,, d. Th• date and approximate .time of analY•••1 e. The individual(a) ··who parforia•d th• analyHa; f, ~alytical .rHulta, method detection llmita, .and the analytical tec~niciu•• or method• u1ad1 g, Quality •••uranca/qu•lity control record• and reaulta; h. Non~atorm water discharge inapection• and viaual obaarvationa and atoria water diacharge viaual observ.ation record• (aee S•ctlona B.3. and 4,)1 • i. Viaual obaervation and •ample collection exception record• (aee Section B.5.a, 7,d, a, and ll.b,ii.); • -35· ). All calibracion and 111ai11tcnance recorda of on-site i11strurnents used; k. All Sc1mpling and Analysla Exemption and Reduction certlficationa and supporting documentation (aee Section B.12); I. The records of any correctiv• actions and follow-up activities chat resulted from the viaual observations. I 4. QJl.JlUJl ... ~ All f .;d 1 ity operators shall 11ubmit an Annual Report by July 1 of each year to the Executive Officer of the Regional Waler Doard responsible for the area in which the facility is Joe.iced and co the local agency (if nqueeted), The rt!porc shall include a summory of visual observations .rnd sampling results,, an evaluation of the visual observation and sampling and analysis results, laboratory reports, the Annual Comprehensive Site Compliance Evaluation Report required in Section A,9., an explanation of why a facility did not implement any activities required by rhe General Permit (if not already included in the Evnluacion Report), and records specified in Section B,13.i. Tht! method detection limit of each analytical parameter shal I lie included. Analytical reaults that are le.-a than tilt! mt!thod detection limit ahall bd reported aa •leaa than the method detectlon limit,• The Annual J:teport shall be signed and certified in accordance with Standard rrovis1ons 9. and 10. of Section C of th~• Oeneral Permit. Fac1 licy operators shall prepare and submit their Annual lleports using •the annual report forms provided by the State Hater Board or Regional Water Board or shall ~ubmit their 1nfo11o~cion on a form that contains equivalent information. I ':i . G f.QU.Q..}11W j tori M fac1 l icy operators may participatd in group monitoring as desLr1b~d below. A facility operator that participate• in group monitoring shall develop and implement a. written site• spet: 1 f 1c SWPPP and monitoring program in accordance wlt-h the General Permit and must satisfy any group mo'nitoring requirements. Group m~nitoring shall be subject to th• following requirements: d. A group monitoring plan (GM~) shall be developed and implemented by a group leader repreaenting • group of similar facility operators regulated by this General Permit or by a local agency which holds an NPDES permit ( local agency permittee) tor a municipal separate storm s~wer sistem. GMPs with partiolpants that diacha~ge . • • storm Yater Yithin the boundaries of & single negional Water Do•rd ¥hall be approved by that Regional Water Board. OHPa with participant• that diacharge storm water within the boundariea of multiple Regional Water Board• shall be approved by t~e State Hater Board. The State Water Board and/or Regfonal Water Board(a) may disapprove a facility•• participation i~ n -OHP or require a OHP participant to conduct additional monitoring activitie1 . • b. At leut two Hmpl.. from ••c~, OMP participant· aha 11 be collected •nd·analYf•d in accordance with Section B.s. over the fir••year period of thia General Permit. The two aample minimum.li>pliea to now and existing members. The group leader or local agency permittee aha 11 achedule s'ampling to n1eet th•. following conditions 1 ( i l to even 1 y distribute the ■ample collection over the five-year term of this Oeneral Permit, and (ii) to collect the two aamplea at each part~cipant•a facility in different and non-conaecutiv• wet seasons, New participants who join in Years• and 5 of thia General Permit are not eubject to Condition (U) above, -Oroup hadera 1hal l explain in the annual Group Evaluation Report why any acheduled samples were not collected &nQ reachedule the sampling 10 that all requtr•d sample■ are collected during the ter~ of thia Oenei-d Permit. • c. The group leader or local agency pe~ittee muat have the appropriate resource■ to develop and implement the OHP. The group leader 9r local agency permittee muat al10 have the authority to terminate any parti~ipant who is not complying with thia General Permit and the GHP. .. d. The group .leader or local agency permittee is reaponaicle for, i. Developing, implementing, and reviaing the GMP 1 11. Developing and aubniitting an annual Oroup Evaluation Report to the State Hater Board and/or Regional Water Board by August 1 of each year that includes: Ill An evaluation and summary of all group monitoring data, (2) An evaluation of the overall p•rformance of the OHP participant■ in complying with this Gene.al Permit and the OMP, (Jl Recommended baaeline and aite-apecific BMPs that should be considered by each participan~ based upon Items Ill and (2) above, and ·l7· ,~, A copy of each evaluation report and recQmmended BHP• aa required in Section B,15,d,v. b•low. iii. Recommending appropriate BHP• to reduc• or prevent pollutant• •••ociated with induatrial activitiea in scorm water dischargea and authorized non-atorm water discharges; iv. Aa•isting each participant in completing their Annual Comprehensive Site ·compliance Evaluation and Annu.il Report; v, Conducting a minimum of two on-aite lnapectiona of each p.irticipant•a facility (it. h recommended that these inspections be acheduled during the Annual Cornpnihenaivd Site Compliance Evaluation) during the term of this Oeneral Permit to evaluate the p,Ht 1cip.tnt•a ·conipliance with thi• Oeneral Permit .:Jnd the OHP, and to recommend any additional BHP• 11,1cess.iry to achieve compliance with thi• General PHrmit. Participants t~at join in Years 4 and 5 shall be scheduled for one evaluation .. A cqpy of thd ~v.a l uat ion and recommended BHP• a hall be p1ov1~dd to the participant•; n. Submitting a OMP (or revisions, aa necessary), to the appropriate Region•~ Water Board(a) and State Water 'Board no later than September 1, 1997 (or August i in subsequent yearaf. Once approved, a group leader or local agency permltte• •hall au~mit a letter of int•nt by August l•of each year to continue the approved OHP, The l•tt•r of int•nt must include a ro•t•r of participant•, participant's W•ste Diacharge Identification number (Woro•), updated sampling achedules, and any other r•viaions to the GHP1 v11. Revising the GMP aa instructed by the Regional Water BoArd or the State Water B~•rd; and "111. Providing the State Water Board and/or Regional Water Board with quarterly update• of any n•w or deleted participant• and corresponding change• in the aampling and inspection achedule. e. The GHP ahall1 I . Identity the participants of the OMP by name, location, and WDIO number; 1 i. Include a narrativ~ ducripticn summarizing the industrial activities of participants of the GHP and • f. g. h. i. iv. v. -38• explain whr the partlclpanta, u a whole, have wufficient Y •i•ilar lnduatrlal activities and BHP• to b• c~v•r•d by a group Monitofing plan1 Includ• a llat of typical potential pollutant •ourcaa •••ociat•d with the group p&Tticipant•a facilities and r•co1111Undad baa•lin• BHP• to prevent or redµca pollutants aaaociated with industrial activity in the •toria water diacharg•• and •uthoriz•d non-•tor• water diacharge•; I Provid• a·five•Y••r sampling and inspection schedule in accordance with Subaect,iona b, and d,\', above. Identify th• pollutant• aseociated with industrial activity that •hall be analyzed ~teach • part~cipant•• facility in accord•nce with Section B.5. Th• aelection of th••• pollut.anta ah•ll be ba••d upon an ••••••••nt of each facility's potentlAl pollutant aourcea and likelihcod that pollutant• uaoci&ted with induatrhl ac:ivity will be preaont in •~9r• wat•r 4lachargea and authorized non-ator111 wat•r diacharg•• in aignlf icar.; quantitha. Sampling and analr•i• ahall be conducted in ac:ordance with th• •pplicab • requirem•nta of thi• sect!on. Unl•u oth•naiae inat~ct•d by th• R•giond W~:er Board or th• State Water Bo•rd Exacutive Pirector, the JMP• shail ba implamant•d.,t th• beginning of th• w•t •eAaon (October 1). All participant.a in an approved GHP that have not been ••lected to •••Pl• in & particular wet ••••on are required to comply with all other 1110nitoring program ar.d reporting requi·rera•nta of thla Sectio" including th• aub,ittal of an Annual Report by July 1 of ••ch y•ar to the a~propriate R•~ional Wat•r Board. . If any OHP include• participants which are au:ject to F•d•ral ator111 water effluent liaitation vuide:in••• each of tho•• par-tici~anta auat perfora the 1110nito:ing daac.rib•d in S•ction a.,. and aub.-it the •rHu:ta ot the monitoring to th• appropriate R•gional Wat•r a~ard in the facillty op•rator••·Annual Report. j. GHP• and Group Evaluation Report• aho~ld be p:~pared in accordance with State Water Board (or R_•glona: Water Board) guid•nca. • ·, ; ••• -J9- GMP participants may receive sampling credits in accordance with the following conditions: 1. Current or prior participants (group participants) of approved GMPs, who havd not collected and·analy%ed the six samples necessary to qualify for,the Sect.ion B.7.b.i. (1) Sampling and Analysis Reduction, may aubutitute credit earned throuyh participation in a GMP for up to four of thd aix required samples. Credits for GMP participation shall be calculated as follows, (11 Credits may only be ea~ned in years of participatioh where the GMP participant was not scheJuled to sample and the GMP was approved. (21 One credit will be earned for each year of valid GMP partlcip~tion. • . . (Jl One additional credit may be earned for each year the overall GMP sample collection performance is greater than 75 percent. 11. GMP participants substituting credit as calculated ab0v~ shall provide proof of GMP participation and certification that all the conditions in Section B,12.b,i. have been met. GMP participants substituting credits in accordance with,Section B. lS.k,i. (J) shall also provide OMP sample collection performance documentation. 111. GMP participants that qualify !or Sampling and Analysis Reduction and have collected and analyzed one or more samples after October 1, 1997 shall only be required to collect one additional sample during the remainder -of this General Permit. The sample shall be collected in accordance with the •sa~ple 2" schedule in Table C of this Section. n. l,)roup leaders shall furnish, within 60 days of receiving a 1~quest from the State Water Board or Regional Water 0oard, any GMP information and documentation necessary to verify the Section B.15,k, sampling credits. Group leaders may also provide this information and documentation to the group parlicipants. 1 li. l,)'.1utabs:d Monitadoa oot1on Rc']ional Water Boards may approv'e proposals to substitute watershed monitoring for some or all of the requirements of tl\is Section if the Regional Water Board finds that the w.atershed monitoring will provide s\lbstantially similar monitoring information in evaluating facility operator (:Crnpl iance with the reC]uire1111mts of this General Permit. • 4 0- TABLJ: D >J>DITlONAI, ANALYTICAL PARJJ<rrnB SIC Ad.l.xllx.lltpc.t1tlll.t.d • SECTOR A. 1'11\181!:R PRODUCTS Al Al A) A4 A4 A4 A4 A4 A4 A4 A4 2421 2<191 2411 2426 2429 243X 244X '2<15X 2493 J499 . Ocneral Sawmills and l'lanlnr Mills Wood P.rcscrvln1 . , .... , , ' ' • ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' • • • • • • • • · · · · • COD;TSS:~ l.01 S1ora1c and lfal\Jllnc • • ' • ' • • • • • ' • • • • ' ' • • ' • • • • • • • • • • · • · • · • • , .. AJ;C lbrJwood Dimension and Fi0:C,;1~i i.i11j1' • • • • ' • • • • • • • ' • • • • • • • • • : • • • • • • • • • T! Specl&I Product S1wrni111, Hot Elsewhere Cl~sificd' • • • • ·, • • • • • • • • • • • • • • COD;T! Mlllwork. Venter, Plywood, and Stnicturil Wood '' ' ' ' ' ' • • • • • • • • • • • • • • • • COD!T! (c~cept l.C:M~•Wood Kitchen Cabinet Manufacturers) • • • • • • • • • • • • • • • • • • • • • • . CODtT: Wood Containers, , •..•••• ·, • Wood Bulldln1s and Mobile Home~• • ' • ' ' ' ' ' • ' ' ' ' ' ' ' ' ' • • • • • • • • • • • · · · , COO;T: Rcconstltu1ed Wood Products • ' • • • • • • ' • • • ' • • • • • • • • • • • • • • • • . • , , COD;T Wood Producu, Not Elsewhcrc°Cl;s~in~d. ' •• ' ' ''' ' • ' ' ' ' • • • • • • • • · · · · • · · COO:T SECTOR B. PAPER AND ALLIED PRODUCTS MANUFACTUR.ING Bl 261X Pulp Mills . , , .... , ... , , , Bl 26lX Paptr Mills • •• ' ••• ' ' ' ' • ' ' ' ' ' ' ' ' ' • · · · · · · · · · · · · · Bl 263X Paptrboard M'nis' • • ' • • • • • • • • ' ' ' ' • ' ' ' ' • ' ' ' ' ' ' ' • ' ' · · · · · · · · · · · · · · B~ 26.SX Paptrboard Contal~:r~ ;~• B~x~; • • • • ' • ' • • • ' • • ' • • • .' · ' · · · · · · · · · · · · · • . . . C< D5 267X Convened P~pcr and'Papcrboard ,;,;,ciu~.~.-E~c~~.·co·n;,;~~·.·nd 'a•o~~1·::::::. SECTOR C. CHEMICAL ANO 'ALLIED PRODUCTS MAMIFACTl/RING CI 2S IX Industrial fnorranlc Chemicals Cl 282X Plastics M11erial1 and Synihctlc R~;,,;,: s;;,h,;I~ R~bbe~: • ' • • ' . ' . ' . Cclluloslc, and Othe! Manrnadc FlbcrJ Exccpi Olan 28-IX Soaps, Deter1en1s, and Cleanln1 Prcp&ratlons; Perfu~: • ' • • • • • Cosmetics, and ~1hcr Toilet Prepamlons ••.. , . , , ... , . Palnu, Vimlshes, Llcqucrs, Enamels, ind Allied Producu • • • . . Al:fr:N . '.' .. '. N+N C5 C6 C7 285X 21!6X 287X Industrial Or1anlc Chemicals , • Nhro1enous and Phosphatic Bulc°Fe~i1i1;~: ifi,:ed • • • ' ' • • ' • • • • · · · · · · · · · · · · · · Fcnlllur, Pesticides, and Other Asrlcultunl Chtmk:als cs 289X Mbccllanc:ous Chemical Products • • • • • • • • • • • • , F t;N + N1Pb12 39.Sl Inks. and Paints, lnc1udlns China ,;1~1in~ 'i~~;,~ '1~1~··,~· • • • • • • (llmhed to llu) Drawliia lnlc, Pla1lnum P1ln1s for 'sumt w~ . ' .. ' ..... Palms for China PJlnllns, Anlst's Paints, and Anlst's W11crcol::1Lcaihc1 Work, ...... ' ' .. ' .. '. SECTOR D. ASPHALT PAVlNG/ROOFJNO MATERIALS MAN\JF,v•.,... ..... ,RS MANUFACI1JR.ERS "' u.ru:. AND l.UBRICANT DI X Dl 2991 Asphalt Pavlnc and Roofin1 Materials . . · Lubrlcatln1 Olis and Ormes ••• ' ' ' ' ' ' ' ' ' ' ' ' • ' • • • · · · · · · · · · · · · t ft• f I f• t t t' ♦ t t t •If t t O O t O , • 0 0 • 0 1 0 0 • 0 -----------:------- b>m:tNiaa ·--·-N, Ah.m11m N. /,,,av,: NII,• Annon1,1 711• 7m: Ol•Ow,t Mc•t.~ F. • Iron A, , Sil'fl' p • fl,c,p,cna Sc . s.i......n coo. Q,mlQ/ ~ ~ ,ECTOR E. I.I 11 11 I ~· I .l I; I J I ~ SIC At1WtiJltiu:i;w.11cd rACJI.III.WD GI.ASS, CLAY, CE~IENT, CONCltETE, ANO GYPSUM PRODUCT MANUF~C'JVRINO lll I fla1 Olan ••••••••••••••••• : , , , , , ·, • , , • •, • • • • • • • •• • • • • • • • • • • • • • • • • )22X Glau anJ Olu1ware, Pressed or Blown ... , ..• , . , .• , , , .. , . , , . , , , . , , , , , • • • • • • )l)X CllaSI rroJuclS Madiofl'urchmd Olm . , , , , .·.,,,,,,,,,,,,,,,,,, •,,,,, •,, •, )2◄ I llyJraulic Ccmclll . , .. , , ..•........••• , ......•......... , . , . , . , , , , , , • , )UX S11uc1ural Clay Produces •...•.......•.....•..•.•............•.. , , . . , Al Jl6X runcry anJ Rtla111I Produces .•.. , ...........•................... , . . . • • Al )197 Non•Clay Rcfrac1urlc1. . , .. , .•......••.••.•....•••.... , ......•.... , , • Al • )27X Cuncrc1c, Oyp,11111, anc,I r1111cr Products (Except Lime) . . . • . . . . . . . . . . . . . . . . . . TSS1rc (cucpt 3174). • 3295 Minmls anJ Ea11h1. OrounJ. or O1hcrwlse Tmccd ....... , .... , .. , . . . . . . . • TSS1Fe -.~:CTOR F. l'ltlMARY METALS I I ll IX S1ccl Wurks, Blul Furnaces, Rolllnr & fl11lshln1 MIii . , .. , , , .. , . , .. , , , , , , , , , , Al;~ I ! ) llX lton anJ Siccl foundries •. , , .• , , , , •• , , ..• , . , •..•... , • , , . , , Al;TSS1Cu;Ft;Zn 1 \ HlX Primary Smcllina and Rennins of Nonferrous Metals • , , • , .•.•... , ..•• , • , , . , , • , , , • I ◄ JHX Sccondal)' Smcllln1 ind Rennins of Honrcrrous Metals , .•....•.•.• , , , , , •. , • • • • , , • 1 ~ llSX Rullln1, Drawln1, and EJ11rudin1 or Nonferrous Mecals •.•......••.•.•••• , .... Cu1Zn I ;, 3 )6X Nunfcrrou1 foundrlu (Ca1dn1sl . , ... , ....•.. • ............... , ........ Cu;Zn I • 3)9X M1sccl11ncou1 Pnmary Mcial ProJuc11 ... , •...... , .... , . , , . , , . , , , , . , • • • • • • , , -.ECTOR G. METAi.. MINING (ORE MINING AND DRESSrNG) EXCEPT INACTIVE METAL ,11:-;1:,;1; ACTIVITIES ON f'EDEI\AL LANDS WHERE AN OPERATOR CANNOT BE IQENTJF.JED •ii .. , ' .. I j_l Ii~ \j5 (jl) (j7 IOIX 102x IOJX HMX 106X I0IX l9'JX Iron Qru ................•...•••........• , .. , .. •,,,, • • • • • • • • • • • • • Cuppcr-Oru •• , •.......•.•..• , , ••.•... ; .•.....••..•.... TSS;~OD:N+N Lead and Zinc Ores ...•. ; ••...•..•••• , , • , , , • • • , • , , • • • • • • • • • · • • • • • •· • • Q,,ld and Sliver Ores .•.......... , , ,' , .. , , , , , , , , , , . , , , • • , , • • • • · • • · · • • • • fcrroalloy Ores, ·e,ccpl Vanadium •... , ....•..•...•................ , .. , , , , Mt1al Mlnln1 Services •••.•••••.••••••• , •• , ••••••.• • • • • • • • • • • • • • • • • • • • Miscellaneous Mc1al Ores ....•.•.....•.•.....•........ , .....•. , , . , , • , , • ,;r.:<:TOR II. CQAI. MINES AND COAL MINING,REUTED FACILITIES 'IA 12XX Coal Minn and Coal Mlnlns·Rcla1cd Facl111lta ....•.•.. , .............•.. TSS;Al;Fc 'i•:CTQR I. COAi. MINES AND COAL MINING-RELATED FACILITIES 11 I JI X Crude Petroleum and Na111r1I Ou ........... ·, , , .•.•.... , . , , .. , , , , , , · · · · , , , · I! I llX NaNral Ou Liquids ••••••• , , •• , , , , , • , , , , , • • • • ; , , • • • • • • • • • • • • • • • • • • • • l.l IJIX Oil and Ou Field Scrvlcci • , ••••.••••.• , • , , ••• , , , , , , , , • • • • • • • • • • • • • • • • • . ) 'i£CTOR J, MIN'ERAL MINING AND DRESSING EXCEPT INACTIVE MINERAL P.dNtNG ACTIVJTl'ES OCCURRING ON FEDERAL LANDS WHERE .AN OPERATQll CANNOT IIJ JDEN"tlnED 11 1.CIX DlmtnalonStona ........ , ... : ................................ , .. 'TSS 11 1.ClX Crushed ,nd Broken S10111, l~ludln1 !Up Jtap .• , • , .••.••..•• , • . • . . • • • • • • • . • TSS I I I .CSX No1V11ctalllc Minerals, EJ1cept Fuels .••.•...••••.•.•......•.•..... , ... , , TSS 11 14-IX Sand and Oravcl •....•••.•••••.....••.••.••••....•.....•.. , . TSS;N+N I l .~,x Clay, Ceramic. and Rcrrac1ory Malcrlall , , , . , , , , , , . , , , , , , , , , , • • • , • • • • • • • • • • IJ lol7X Chemical and fcr1lllzcr Mineral Ml"l"I .••..•..............•..•......... , , , • , 11 l-19X Mhccllancou1 Nnnn1c1a!llc Mlncrals.'~llccpt fuels . . . . . • . . . . . . . . . . . ......... . •U• . ~ f..tqnl1l SECTOR K, HAZARDOUS WASTE TREATMENT STORAGE OR DISPOSAL FACII ITIES NA ◄9Sl llatardous Was11 Tm1mcn1 S1or111 or Disposal ... , . . ... . . . . • . . . . . . f'Hl,;r.ta;C• SECTOR L Li\NDnLI.S AND I.AND APPLICATION SITES NA ,49Jl Landnn, and Land Appl,lca1io11 SIies Thai Recafvc or Havt Received lndu1tri1I Wa11u, EaUf! lnac1lv1 L.andn1i1' ••••••••• ' • or Land ,\ppllca1lonl ·Sf111 Occvnfn1 Ofl Fc4cral Lands Where ,111 Optra1or Cannoc be ldtnd0ed SECTOR M. Atn'OMOIIILE IALVAC! YARDS Cd; 111 ! NA $01S Facilities En111c,t II\ Dllmamlln1 or Wrccltln1 VuJ Motor .. Vchlclea ror P1111 ltccyclln1 or ltcsalc and ror Scrap • • • , · · , , TSS;ft1P1 SECTOR N. SCA.AP RECYCLING fACILfflES HA 5Q9l Procmfn1, Rcclalrnln1, and Wholculc Qlmlbutlon or Scrap and WM1t M11ulal1 •••• , ••. , ••.•••...•.......... .... TSS: Al:Cu1lr SECTOR 0, STEAM EL~CTRIC GIHERATING FACILmES NI\ 4911 Sream Electric l'owcr Ocnm1ln1 f1cllllle1 ••• , • • • . . . . . . . . SECTOR P. ~ TRAl'fSPORT.\TION FACIJ.ITJES TIL\T JL\VE VlHICLE ANO EQUIPMENT MAINTENANCE SHOPS AND/OR EQUIPMENT CLEANIHG OPERATIONS ' Pl 40XX Jbflroad Tnnspona1lon , , , , • • • Pl -41XX Local and Hf1hway Pautn1cr Tr~~s~~.;f~~ : : : : : : : : : : : •••• P) 42XX M01or FNltht Tra.1111lon and Warchouslni N 4lXX United S1t1c1 Polis! Scrvlc1 ' ' ' ' ' ' ' ' • • • ' • • ' • ' ' • • • · · · · • · . PS S171 Pcnolcum Bulk S111lo111 and T;~l~b• • • ••• ''' • ' ' ' •• ' ' ' . ' . ' ' . ' . · · · ••• t ••• ft.Ott t t O •II o I I I O I I SECTOR Q. WATER TRANSPORTATION FACILITIES TIIAT IL\ VI VEmcu (VESSEL} & EQVIPMENT MAINTENANCE Sl~Ol'S ANl>/OJl lQUIPMtm Cl.I.A.NINO OPERATIO~S NA "'4XX Wa11r Transponatlon • • • • • • • • • • • • • • • • • • • • • • • ·, •, ·, · ·, .......... AliFe; SECTOR R, SHIP A.NJ) BOAT llnl.DrNO OR llUAIRJNG YARDS HA .J7JX Ship and 11011 ll1111dln1 or R1palrln1 Yards . , . , .•.......... SECTORS. AIR TRANSPORTATION FActUnEs NA 4SXX Afr T11111po,Utloft facUltlet Thia llm Vehicle • -Mal1111nanc1 Shlpt, Mllmal H1ndln1 Facl111ies •• ' ' •• ' •• ' • ' •• . Equipment Claanln1 Opmtlonl, or Afrpon andior • Aircraft Dtlcfn1/A111l-lcln1 Oplrationa BOD:COD1:'\" • • foliH'd\l( SlC ACJ.lrl~litllrW111ul fllcamruo ~EC11llt T. .'I-\ TREATMENT. WORKS , • 49jl Tru11nen1 Works T1u1ln& Oomurlc Scw11c or Any 01hcr Sewage Stud1c 01 Wu1cw11cr T1u1mcn1 .Device or Sys1cm lluJ In 1hc S10n1e, 11e111nen1, rccycllns, or Reclanulion or Municipal or Domcs1lc Scwa1c whh , DcslJn Aow or 1.0 MGD or More 01 Required 10 llav,e an /.pprovcJ Prcuca1mcn1 Pto1ram ...... , ..... • . • • • • • • • • • • • • • • • • • • ••• • • • • • • • • • • ' • • • • • • • • • • ' • SH'TllR U. \II FOOO ANO KJNl>RED PRODUCTS . , lO IX Mui P1oJuc1s , , , , , , , , , , , , , • • • • • • • • • • • • • ' • • ' • ' • • • • ' ' ' • • • • ' • ' , 101 X !)airy ProJucu . , , , , , , • • • • • • • • • ' • • • • • ' • • • ' ' ' ' ' • ' • • • ' • • ' • • • ' ' • • • ' ' ' iolX C1nncJ Fro1cn anti l'rcscrvcd Fruh.s, Ve1c1able1 and FooJ ' Spccl~li°1u , .. , , , • · · · · • • · • • ' ' ' ' • ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' • ' • ' , •••••• , , , • • 'TSS · 20-IX Ouln MIii Producu. , , ..• , , • , , , , • • •, • • • • • • • • • • • '.' • • • • • • • • • • • • • • • • • 20SX Bakery P1oJuc1s . , , , , , , , · , , , • • , • • • • • • • • • • • ' ' ' ' • ' ' ' ' ' ' ' ' ' ' ' ' • ' ' ' ' ' ' ' ' l06X Su111 anJ Confccrloncry Produm . BOO·COO;TSS·N +-N 207 X Fau and Oils .. , , , • , , , • , • • • • • • • • • • • • • • • • • • • • • • • • • ' • ' • ' ' lO!X Dcvcuscs , .. , , , • , · , , , • • • • • • • • • • • ' • ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' • ' ' ' ' 20'1X Mbccllanrnus Food Prepararlon.s and Kindred ProJucrs • • • • • • • ., • • • • • • • • • • • • • • • • • • • 2 I XX T ubacco Producu , , , . , , , , , • , , , • , • • • • • • • • • • • • • • • • • ' • • ' • ' • • ' • ' • • • • • • ' • \ ! Tl:.XTII.E MILI.S, APPAREL, AND OTllER fADRIC PRODUCT MANUFA~~I~-~,, .. , .. , . , nXX Tu1ilc l>hll Producu , , , , , , , , , • • , • • • • • • • • • '' • • • '' '' llXX Apparel and 01he1 Flnhhetl Producu Made From Fabrics and Similar Ma1criils , , , , , , , , , • • • • • • • • • • • • • • : ' ' • • • • • ' ' ' ' ' • ' • ' • • ' • ' • ' • • ' • Sf'.(' I I !ll \\', nJRNITURE AND FIXTURES \ \ 25XX furnnurc anll Fix1urcs , . • , , , , • • • • • • • • • • • • • • • • • ' • • • • • • • • • • • ' • • • • • ' ' ' • -.: \ H 1~ Wllod Ki1chcn Cabinets . , , , •. , • , • • • • • • • • • • • • • ' • • ' ' • • • • • • • • • • • • • • • • ' ' • • SFCTtlR X.' ~-~ :-I,\ N.\ 'I,\ '-: \ ~ffr1JR Y. \ I \ I \ I \ I \: l'RINTING ,v,10 PUBLISIIING 2732 Book Prln1ln& , .. , , , , , , , , • • ,·. • • • • • ·' '· • • • ''' '''''' '''' '''''. ''' '''' 27Sl Commercial P1ln1ln1, Lhhosraphlc , , , , • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 2754 Commercial Prln1lnJ, 011vu1e , .• , , • • , • • • • • • • • • • • • • • • ' • • • • ' • • • • • ' • • • • ' • ' • • 2 7 jQ Commercial Prlnlln1, Hor Ehewhcrc Cll.ultlcd • • • • • • • • • • • • • • • • • • • • ' • ' ' ' ' • ' ' ' • • 2790 l'l11cmakln1 and Rcla1ed Services , • • , •, • • • • • • • • • • • • • • • • • '· • • • • • • • • • • • ' ' ''' RllOBER, MISCELLANEOUS PLASTIC PRODUCTS, AND MISC. M~~~~~~~~'.~~ :~~~~:~I.E~ 7.n JOIX Tires and Inner Tubes , , , , • , , , • • • • • • • • • • • • • • • • • 7.n J 2 x R bb r and Plasrlcs Foo1wcar ,. • • • • • • •' • • • • • • • • • • • • ' ' ' • • • ' • ' • ' • ' • • ' • • • ' ' z J~SX o~slc:u. Packinf, and Sullnf Devlcc.s and Rubber and Plaulcs , , , , , • • • • • • • • • • • • • • n Hose and Bchlns Zn • Fabrlcmd Rubber Products. Nol Elsewhere Cl~ulncd • ••• • • ••• , • ••• • ' ' • , , • , , , •• ;:~ Mnccllancou~ Plullcs Produces , , • • • • • • • • • • • • • • • • • • • • • • ' • ' • • • • • • • • ' • ' • 5.uhuruu: SlC ~ bamdJ Yl 393X Muska! l1111rumcn1S ••.......••........•. , , . . . , .... , . , ......... , . Yl J~X Dolli, Toya, 01mc1, and Sponln& and Alhlcllc Oooch ...... , .. , , . . . , , . , , . , , , Yl 39.5X Pent, Pcnc:IIJ, and Olhcr /.nlsts' Ma1erlab • , , , , .. , , .. , . . . . .. , .. , . . . , . , .. Yl )96X Coc111me Jewelry, C01111mc Novehlu, Bunons, and Mlscellaneoua·Nodons, l!xctp1 Preclo\ra Mctal , , ............ , .............. . Yl 399X Miscellaneous Manufac_rirtn, Jndwirtu .. , • , ...•. , . . . . . . , . . . . . . . , .. , , . , , . SECTOR Z, LEATIIER TANNING AND mdslltNO NA 31 IX Lca1htr TaMI"' and Flnhhlns ••••••••• ' ••••••••.•.. ' ' .. ' ..... ' ' ' . ' ' ' ' HA NA ·Facillllcs 1h11 Make Pcrtlllur Solely Prom ualhtt Scnps ar,c,I Le2tMr °'1st . . . ........... , ....... , ..... , ... , ...... , .. , .. , SECTOR AA,' FAISRICATED METAL PRODUCT'S AAI '.Ml9 Hardware, Noc Elsewhere Claulncd,,,, .. , •.• , , , , , . . . . .... , .. , , l.n1NH< AAI )«I 1'abrlcilodS1rucNnlMcul , .. ,, ......... , ................... , 7.n;N+I', AAI J.C..42 Mrul Doon, Sash, Pnmcs, Mokll"', and Trim .• , , . , , ............ , , . 7.n;N+N Ml 3«3. Fabrtca1od Plate Work (Boller Shops) .. , , , , , ... , ....... , ... , .... ', . Zn1NHI AA I 3.«-4 Sheet M.ul Work , , , , , , , , , , , , , , , , . , , , , , , , . , , , , .... , .... , , , 7.n;N + N AAI '.M.51 Screw Mach!nf Producu ~ .. , ..... , .. ,.,............ .. ...... , 7.n;N+N AA I 3'452 Boll.I, N111.1, !crews, Rivets, and Wuhcn , •• , • , , , , . , • , , , . . , . , , , . , , Zn1N + 1-1 AA I :M61 Iron and S1ul for1ln1• , , , , , , , , , , , . , , , . , , .. , , ... , ... , , , , ... , 1.n;N + I- AA I :M71 Elte1ropl1lln1, Pl&1ln1, Pollihll)I, Anodlrln1, and Colorln1 . , ...... , ... , , , l.n1N H ),49-4 Valves and Pipe Flnlnss, Noc Elscwhcrs Cla.sslllcd . , . , , , . , , , . , . , .. , .. , 1.niN H AAI J..196 Mlscctlaneous Pabric11ed Wirt Producu. , , • , •.• , , .. , . . . . . , , , .... , , Zn;N+r, AAI J..199 Fabrlc111d Met.al Products, NOl Elsewhere ClwlCltd , , .. , ... , ... , ..... 7.ntN+t-, AA I 391X Jewelry, SIiverware, and Plated Wart • , .. , , , , .. , , , , ...... , ..... , . Zn;N +r, AAl J..179 ·coa1Jn1, En1riv'tn1, and Allled Scrvlcu ....•• , , .. , .... , ........ , . , , , . '.l.r SECTOR AB, TRANSroRTATION l'.QUIJ'MtNT, INDUSTlUAL OR COMMERCIAL MACIIINERY HA 3SXX lndusttb.l and Commercial Mr,c:hlncry (mwc Coq,u1er and (uccpc 3.57X) Office !qulpmcnt) . , • , .. , , • , • , , , ......... , .. , . , . , .. , .. . NA 37XX Tnnsportallon Equlpcnmt (uc:cpc Ship and BOIi lkllldln1 and (Uctpc 373X) Repalr!ns . , , ...•• , ... 1 , , • , , ·, , , , .. , . . . . . . , , , , ... SECTOR AC, ELl::CTRONJC, ILE~C,\L. P110TOGRAPHtC, AND omCAL GOODS NA 36XX Electroolc andOlhcr l!ltctrical Equipment and Components, E.lccpc. COfllputer Equlp(nenc •••••••••.•..•.. , . . . . . . . . . . . .. : . . . . ... HA 38XX Mcuurina, Analyilna, and Con1rollln1 lnurumenq; Phoeo1nphlc, Mtdkaf, and Op(lcal Ooods; W11cha and Clocks .. , , .. , . , , , . , .... NA 3S7X Computer and Office Equipment ••• , •...• , • , , . , , : , , ... , , .. , , , . , ... , , , . ::i::.:l 1011 C: STA.IIOARD PROVISIQNS nut.}' to Comply Th~ facility operatqr muat comply with all of the conc;Utiona of this General Permit. Any General Permit noncompliance constitute•·• violation of the Clean Water Act (CWA) and the Porter-Cologne Water Quality.Control Act and la ground• for (al enforcement action for (~) General Permit termination, revocation and reiaauance, or modification or (c) denial of a Oendral Permit renewal application. The facility operator shall comply with ettluent atandarda or prnhibitions utablblu~d under Section J07(a) of th«-CW'A for toxic pollutant• within the time ptovided in the regulations that establi»h th•••·atandarde or prohibition•, even if this ~eneral Permit ha» not yet been modified to incorporate the 1·equi rernenc. 2. G~n~ral Perm1t Action• ThiM General rermit may be modified, revoked and reiaaued, or terminated for cause. The filing of a request by the facility operator for a General Permit modification, revocation and reiaauance, or termination, or a notification ~f plann~d chariges.or anticipated noncompliance doe, not atay any General Permit condition. I{ any toxic effluent standard ·or prohibition (including any sch~dul~ of cgmpliance specified in auch effluent ~tandard or prohibition) la promulgated under Section 307(a) of the CWA t'or a toxic pollutant which 1• preaent in the discharge and th~t atandard or prohibition 1a more atringent· than any limitation on the pollutant in· thb General Permit, thia neneral Permit shall be modified or revoked and reluued to r.ontorm to the toxic effluent etandard or prohibition, and che facility operator ao notified. l. lle1hl to Halt or Reduce >.ctlvity not • Defense It shall not be a defenae for a facility operator in an enforcement action that it would have been necesaary to halt ,Jr 1·etluce the general permitted activity in order to maintain c:om1:.lic1nce with the condition• of t:hi• General Permit, 4. nuty to Mitigate The tacility.operator shall take all reeponaible steps to rn1n1rni:z:e or prevent any diacharg• in violation of thi• 1,.:r11:ral Permit which ha• a reasonable likelihood-of adversely . .ffocting human health or the environment . ...... . • .... S. Proper Oper&tion and Maintenance 6. ; . 8. The hcility opei:AtPX .. lt.. a.ll.ti111u. aha-1-1--properly opeute and maintain any faciliti•• and eyotem• of treatment and control land relatad appurtenance•) which are lnetalled or uaed by th• facility oparator to achieve compliance with the condition• of thi• General Permit and with the requirement• of atom water pollution prevention pbna (SWPPP•I. Pt·oper operation and maintenance •l•o include adequate laboratory controls and appropria~e quality aaaurance procedures. Proper operation and fflaintenance may require the operation of backup or auxiliary facllit!ee or similar •Y•t•m• inatalled by a facility operator when necaa,ary to achieve compliance with the condition• of thi• General Permit. PrQ~erty Right• Thi• General Permit do•• not convey any property rights of any •ort, or any exclusive privileges, nor doe• it authoriie any injury to private property or any lnva1ion of personal right•, nor any infringement of Federal, State, or local la~, or regulation•. Outy to Provide Information The facility ope~ator •hall furnish the Regional Water Ou•ll~y Control Board (Reg'ional Hater Board), State Water Re•ourcea Control Board (State Nater Board) U.S. Environmental Protection Agency cu·.s. EPA), or loca.l 1torm water management agency, within a reuonable time 1pecified by t~e a~encie1, any requested information to determine compliance with thl• General Permit. The facility operator •hall alao furniah, upon requeet, copiea of record• required to be kept by thl• General Permit. Inspection and Entry Th• facility operator •hall allow th• Regional Water Board, State Water Board, U,S, EPA, and local atorm water mana.gement agency, upon th• pr~•entation of credential• and other document••• m~y be required by law, ·to, a. Enter upon the facility operator•• premiaea where a regulated facility or activity le located or con~uct d or where recor~• ·111u~t be kept·under.the conditi •, b. this General permit, ons 0 • I Have ace••• to and copy at reaaonable times any record■' that muat be kept under the condition• of this Gen•ral Permit; "' •· '). • ,·. Inspdct at reai,onable tim1111 any facilities or equipment !including monitoring and control equipment) that are related to or may impact »torm water di11charge or authorized non•atorm water discharge1 and d. Conduct• monitoring activities at reuonable times for the purpose of enaur'ing Oeneral Permit compliance. Signatory Requirements a. All Notices of Intent (NOia) eubmitted to the State Water eoard shall be signed a~ followe1 t 1 l For a corpc,rat ion I by a reaponaible corporate offic11r. For the purpose of thia aection, a responsible corporate officer means, (a) a p1·e11ident, se·cretary, treasurisr, or vice-president of the corporation in bharge of a principal busine11s function, or any other person who performs similar policy or decision-making functions for th~ corporation1 or (b) the manager of the facility if authority to aign documents has been assigned or deleg~ted to the manager in a~cordance with corporate procedures; (2l Fol· a partnel·ship 01· aol~ prc,prietorship1 by a ~~neral partner or the proprietor, respectively; Cll I:, l Fo1· ~ m11nicipality, State, federal, or other public agency: by either a principal executive officer or ranking elected official. The principal e,ecutive offi~er ol a Federal agency 1nciudes the chief executive officer of the agency or the senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., Regional Administrators of U.S. EPA). ~11 reports, certifications, or other information required by the Oeneral Permit or reque1ted by the Rdgional Water Board, State Water·eoard, ~.s. EPA, or local storm water management --gency shall be aigned by a person described above or by a duly authorized 1epresentatlve. A person~• a du~y authorized repri!sentative only if: Ill The authorization is made in writing by a person described above and. retained as part of the SWPPP. l2l T~e authorization speclfiea either an individual or a position h~ving responuibility for the • 10. 11. (3) • overall operktion of the regulated facility or activity, 1uch ks the position of manager, operator, 1uperintendent, or position of equivalent r-■ponsibillty or an individual or poaltlon having overall responaibility for onvironmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position,) • If an author1%atlon 1• no longer accurate because a difhr,!lt i~q~viduat .9,F,P.g~~~Jt?n hu . ruponllibLllty for the overall operation of the .facility, a new authorization mu1t be attached to the SWPPP prior to ■ubmitt•l of any reports, certiflqation1, or information signed by the authorized r~preaentative. Certification Any person •lgning documenta under Provieion 9. above ahall make the following certifications "I certify under·p•nalty of law that thl• document and all aetachment• were prepar•d under my direction or supervision in accordance with a system deaigned to ensure that qualified pereonnel properly gather and evaluate the information 11ubmitted. Baaed on my inquiry of the person or peraona who manage the ay1tem, or tho1e pereona directl re1pon1ible for gathering the information, the information submitted ia to the be1t of my knowledge and belief, true, accurate, and complete, I am aware that there are significant penalties for aubmitting·false information including the poaaibillty of fine and imprisonment for' knowing violations.• Reporting Requirement• A. b. Planned change11 The facllitr operator •hall give advance notice to the Regiona Water Board and local storm water management agency of any planned physlcal alteration or addition• to the general permitted facility.· Notice la required under thla provision ~nl when the altera~ion or addition could .aigniCicantly Y change the nature or increaae the quantity of pol1utantd discharged, ~ntlclpat~d noncompliances The facility operator will give advance notice to the Regional Water Board and , local storm water management agency of any planned changes at the permitted facility which may result in noncompll .. nce with Oeneral Permit requirements. c. d. -o- Compllanc• schedules: Report• of compliance or noncompliance with or any progre•• report• on interim and final requirement• contained in any compliance schedule of this General Permit shall be subml~ted n9 later than 14 d•y• following each acheduled_date. tloncompliance rep9rtlng1 The facility operator ahall report any noncompliance at the time monitoring reports are submitted. The written submi••ion shall contain Ill a deacription of the noncompliance and it• cauae; 121 the period 9f noncompliance, lnc;:luding exact date·• and times, and .if the noncompliance has not been corrected, the anticipated time it is expected to continue; •nd Ill step• taken or planned to reduce and prevent recun·ence of the noncompliance. I·· ·.)i l nn,1 llnzal'daua subatance Liabil'i,ty tk,thing in this General Permit •hall be conatrued to pr1::c:l11de the institution of any lfgal action or relieve the fA~1l1ty operator from any reapon•ibilities, liabilities, or penalt 1es to which the facility operator h or may be sul;>Jo:!Ct under Section 311 of the ~A. 1 l. Si:ve1'ab1 l ity 1'he provisions of thi.a General Permit are. ■evera_ble1 and if any provision of thie General Permit or the application of any provision of this General Permit to any circumstance is held invalid, the application of such provi■ion to other circumstances and the remainder o! this General Permit shall not be affected thereby, • 14. Ro:!opener Clause Th 1 !I General Permit may be modified, revoked, a·nd reisaued, or terminated for cauae due to promulgation of amended regulations, receipt of U.S. EPA guidance concerning re911lated activitiea, judicial decieion, or in accordance with •o CFR 122,62, 122.63, 122,64, and 124,5, Thi• General Permit may be reopened to modify the provisions regarding authorized non-storm water discharge• apecified in Section o. Special Conditions. 15. Pr:na 1 ties for Violations of General Permit Conditions. a Section 309 of the CWA provide• ~ignificant penalties for any person who violates a General Permit condition implementing Sections 301, 302, 306, l07. 308, 318, or ◄OS ot the CWA, or any General Permit condition or limitation implementing any such section in a General ~ermit issued under Section 402. Any-pers~n who -so- violatea any General Permit condition of thi ■ General Permit i• aubject to a civil penalty not to exceed $25,000 per day of auch violation, aa well aa any other appropriate sanction provided by Section 309 of the CffA. b, The Porte!•Cologne Water Quality Control Act alao provide• for civil and criminal penalties in some greater than tho,• under the CWA, Availability caaea A copy of. thi• Oeneral Pet'fflit ahall be maintained at the facility and be available at _all timH t'o the appropriate facility per•onn~l and to Regional Water Board and 19cal ag•ncy in■pectors. 17. Tranafera Thi• General Permit i• not transferable from one facillt operator to anothe~ facility operator nor may it be Y. tran•ferred fr~m. one location to another location, A new facility operatot of an exi•ting facility must submit an NOi in accordanc• with the requirement• of thla General Permit to be authorized to di■charg• under this General Permit, 1e. Continuation ot Expired Oeneral Permit Thia General Permit continues in force and effect until a new general permit ia isaued or the state Water Board reacinda the General Permit. Facility operators authorized to diacharge under the expiring general permit are required to file an NOI to be covered by the reiaaued General Permit. U. PenaltiH for Faldfication of Reporta ~•ction l09(c) (4) of the CWA provide■ that any erson who ~nowingly make• any fal•• material atatement P representation, or certification in any reco~d or other document 1ubmitted or required to be maintained under thia General Permit, .i~cluding report• of compliance or noncompliance ahall, upon conviction, be punished b a tine of not more than Sl0,000 or by impriaonment for oty than two year1:1, or by both, n more ••• • J\ttachment l .EACH.TI.I.Es COVERED DY IIIIS Gt::N.E:.B.AL_Ulllil.t dustrial facilities include F d l ~ private fa iliti f e era, State, municipally owned, c ea rom the following categories: ~~i~~~i~: s~~Ecr TO STORM w~TER EFFLUEm· LIHITATIONs POLLUT , SOURCE PERFORMANCE STANDARDS, OR TOXIC • ( ANT EFFLUENT STANONU)S (40 Code of Federal Regulatione CFR) SUBCHI\PTER N), currently, categories of facilities subject to· storm water effluent limitations guidelines are Cement Manufacturing (40 CFR Part 411), Feedlots (40 CFR Part 412), ·Fertilizer Manufacturing (·40 CFR Part 418) Petroleum Refining (40 CFR Part 41~), Phosphate ' Manufacturing (40 Cf'R Part 422), Steam Electric (40 CFR Part 423), Coal Mining (40 CFR Part 4341, Mineral Mining and Processing (◄O CfR Part 436), Ore Mining and Dressing 140 CFR Part 4 ◄01, and Asphalt Emulsion (40 CFR Part 443). HANtlfACTURING FACILITIES1 Standard Industrial Classifications (SICs) 24 (except 2434), 26 (excopt 265 and 267), 28 (except 283 11nd 285) 29, JU, 32 (except 323) 33 3 ◄41, and )7). • • OIL AND 01\S/HINrno f'ACILITIES1 SICa 10 through 14 including active or inactive mining operations (except for areas of co11l mining operations meeting the definition of a reclamation area under 40 CFR 434.1111) because of performance bond issued to the facility by the appropriate Surface Mining Contr,ol and Reclamation Act (SMCRI\) authority has been released, or except for area of non-coal mining operations which have been releasea from applicable State or Feder~l reclamation requirements after December 17 1990)1 oil and gas exploration, production, proceo•ing o~ · treatment operatio'ns1 or tran•mhaion hcilltie~ that disch~.rge storm water contaminated by contact with or th11t has come into contact with any overburden, raw mAterial, interniediAte products, finished ~reduct•, by-products, or waate producta' located on the aite of euch operations • In11ctJve mining operations are min&d eites that are n~t being 11ctively mined but which hav~ an identifiable facillty operator. Inactive mining •itea do not include aitea ~here mining claima are being maintained prior to diaturbance• associated with the extraction, beneficiation, or proce•sing of mined material, or sites where minimal activities are undertaken for the ■ole.purpoae of maintllining a mining claim. . HAZARDOUS WASTE TREATMENT, STORAOE, OR DISPOSAL FACILITIES: Includes those operating under interim at11tus or a general permit under Subtitle C of the Federal.Reaource, Con■ervntlon, and Recovery Act (RCM), • • ·2· S, WIOFILLS, 1.J\ND APPLICATION SITES, AND OPEN DUMPS: Sites that receive or have received industrial waste from any of the facilities covered by thia General Permit, sites subject to regulation. under Subtitle D of RCRA, and ·sites that have accepted wastes from construction activitie.e (construction activities include any clearing, grading, or excavation that re•ulte in dleturbance of five acre• or more), 6. REC'lCLINO FACILITIES I SIC1 SOU and 5093. These codes include metal acrapyarde, t>attery reclaimers, salvage yards, motor vehicle diemantlera and wreckers, and recycling facilities th•t are enga9ed in assembling, breaking up, sorting, and who~••ale distribution of ecrap and waste material such 11a bottles, wastepaper, textile wastr.R, oil waste, etc. 7, STEAM ELECTRIC POWER GENERATING FACILITIES1 Includr.~ any facilitr that generate■ steam for electric power thro1,9h th'? combust on of coal, oil, wood, etc. 8. TRANSPORTATION FACILITIES1 ·sICs 40, 41, 42 (except 4221•251, 43, 44, 45, and 5171 which have vehicle maintenance shops, equipment cleaning operations, or airport deicing operation•. Only tho•e portions of the facilitr involved in vehicle maintenance (including vehicle. rehabilitation, mechanical repairs, painting, fueling, nnd lubric11tion) or other operation• i,lentified hereln th<'lt ar~ associated with induetrial ac~ivity, 9. SEWI\OE OR WASTEWATER TREA.TMENT WORKS: Facilities 1111ed in the storage, treatment, recycling, and reclamation ol municipal or domestic sewage, 'including land dedicated to the dia'poeal of ■eway• sludqe that are located within th'! confine• of the faci ity with a deaiqn'flow of one million gallons per day or more or required to have an 11pprovecl pretreatment. program under 40·CFR Part 403. Not includcc are farm land•, domeatic gardens, or land• used for sludge m11nagement where eludge h beneficially reused and which are not physically located in the confine• of the facility, or areas th11t are in compliance with Section 405 of the Clr.an Water Act. 10. MANUFACTURING FACILITIES ffHERE INDUSTRIAL MATERI,IILS, EOUI-PHENT, OR ACTIVITIES ARE £XfQS,&[l TO STORM W/ITER: SIC11 20, 21, 22, 23, 2434, 25, 265, 267, 27, 283, 285, JO, 31 (except 311), 323, H (except 34411, 35, 36, 37 !'lxc~pt 373), 38, 39, and 4221•422S. Attachment 2 lfOKH QtQ CONTAQ:8 IJJ/C .TH~TAU .arm 81!:PIQN~L lfAV:B...IUMltl2.1 ,Ti "-'TD USOOKa, CQtmlQL IOU!> 1l•lon ot Wat•r Quality :•ntJon1 jto1111 Wa~er ••l"lllit Unit ,. aox un :ra.,..nto, C-' ,s112-1,11 1,1 n,-ou, PAX, cu,, U7•1Clll ,tact, •rvce l'UJJ..oto •I0.-?11 COAST Jl,IOION 1fa111in D. ltor, Executive Officer 10 skylane loulevard, Sult• A it• Ro••• C-' ,s,o> 111 SH•lU0 PA.X1l10ll SJJ•0IU ,tact, ll•th&a OUarJH ;"' ru>ICIICO UY ~ION retta ~hn laru111Jan, Executive ! lc:er 11 Webtter Stre•t, Suite S00 •land, CA ,un IOI lU•llU PAXt (5101 lU•UI0 ,tact: Toa ~•Y ~~ C:OAff lUOION , 1•r W. 1rl99e, Executive Otflcar ~lguera Streat, Sult• JOO 1 Lule Oblapo, CA Jl401•S427 >Sl SH•llU r.u, II0S) SO•0lt'I ,tactt Hatt rabry :.-QI .u«n.LEI UOIOM ,ranee P, ~olb, Acti119 rx,cutlva r leer 1 ~•ntra Pla1a Drive 1t1rey Park, C>. Jl7~4•21Sf 1ll llf•7S00 P1'X1(lll) lf,•7100 ,tact, X•~l•r IW&IUkaaau 1Cl>l'n,1L V).Ll.ff U'OIOK ~ra111ento OUlce ry H, Carlton,• S~•c:utiv• Officer 1) ~outler Roed, lult1 A :raMnto, CA ,s121->o,1 1'1 JU•J000 PAX, 1'111 2U•l01S 1tact1 , .... 1. ••rk•d•l• I~ 'nLt.Sl' UOIOtf ldin9 •r•nch Oft1~• ••• C, Pedri, luparvi1ln9 En9ineer I Knollcreet Drlve lding, CA "00J 1,1 124•◄10 r.a.x1 UUI 2J4•41S7 ,tact: Carol• Cro.,. St)Cll;M'B),L VM,LIY alOION rr••no 1r1nch OCflc• I.Oren J, Harlow, A■•l•t•nt ixacutlve Officer lf14 la•t A•hlan Avenue rra•no, CA ,>12, uo,1 us-s111 rAJC, 120,1 Hs-suo Contacrt, Da.n'•JJ .rv.a .. n HLT) t.a,llONTAH UdIOlf louth Lake Tahoe Oftlca Harold J, lln9er, Exacutlva Offlc•r 2501 t.ak• Tahoe loulavard louth Lake Tahoa,' CA ,,1s0 1,u1 so-uoo rA,X, 1,u1 SH •22H Co•t•ct1 John 6hort SY) LlJIOlttlUI a,EOIOlf Victorville Office Hi1a111 l11qal, •up1rvl1l119 lnglnear 11•J1 c1v1c Drive, lulte 100 Vlctorvllle, CA U,JU (1C0) 241•fSIJ FAX1(7C0I 241•7J0I Co•tact, TOIi! M•lnor T)COLO~ nvu II.Uni lJ:OIOlf PhJllp Oruanbary, lxecutlve Otflctr 7J•l20 rred war n9 Drive, suit• 100 Pal~ ~•••rt, CA ,22,0 (7'01 JU-7O1 nJt1.17C0J l41•U20 C'oatact, Orludo Oon•ale• IUAJf?A -~ JIIOIO!I Oarerd J, Thibeault, Executive Offlcer nn ·11a1n ltrHt, lulta soo alveralda, CA t2S01•ll)J c,0,1 112.41Jo rAA,t,0,1 111-,211 Coit.tact, Jdc.laHl ,\dacbpara ,, 1AM DIIOO HOION . John N. aobartua, lxecutlv1 Officer ,111 Clalr,i,oht He•a loulavard, lulte i Ian D1190, CA ,,124 (11,1 417-JtSJ rAA,(fltl s,1.,,,2 Cont•~t, Oloria J'\llton ... , .. ~t~, ·: NOTICE.OF INTENT (NOI) INSTRUCTIONS 1\t tAchment 3 TO COJ,JPLY WITH STATB lfATZR JI.ESOOJ•czs CONTROL BOAAD WATBR QOALITr 0",DJR NO. !7•03-DHQ NATIONAL POLLUTANT DIICR,A,JlOI ZLIHINATION IYSTEH (NPOES) G~RAL PEMIT NO. C,.8~00~01 Hbo tiµ•t ~ubmit The facility operator muet aubmit an NOI for each industriAl facility that i• required by u.s, Environmental Protection ~gency (U,S.EPA) re9Ulation,•to obtain a storm water permit. The required indu•tri~l faciliti•• are li•t•d in Attachment 1 ,,r th~ General ,Permit ·and are aho Ueted in 40 Code of Federal Regulation• section 122.2,(b) 114), The facility operator 1• typically the owner of the buaineRft or operatio·n where the· industrial activitiea .req\liring a ato1·m wAter permit occur. The facility operator l• responsible for all permit related activities at th• facility, Where operation• have dlecontin\led and •ivn!ficant materials rema-in on ·dte (such ~• at clo■ed landUlhl, the l11ndo1o1MI' r:-ay be ruponelble for flling an NOi and complying with this Gene:-11 l Permit. Landowner■ may aleo file an NOI for a facility if the landowner rather than th• facility operator, h respon1ibl 1• ("r complianc~ with tht• General Permit, • Jtglf •nd JU>~n to ~pply the comp~eted NOI form, a dte map, and appropriat~ fee must be mailed to the State Water Reeourcee ~ontrol Board (State Wat.er Board) at the followi-ng addreu 1 State Water Resource• Control Board •oivision of Nater QUallty P.O. Box 1'77 Sacramento, CA ,,112-1,17 Attn1 Storm Water Permitting Unit Pl•••• Note, J>o not een4 the original or copl•■ of th• NOI euhalttal to the Regional Water Quality Control Board (Regional Hater Joard), Th• original NOi will be forwarded to th-. Re~ionAl Water Board a£ter proce••ing, Do not: send a copy of your ltora Water Pollution Preventicm Plan (SWPPP) with your HOI aubinittal, Your SHPPP i• to be kept on site and made available for review upon reque1t. •:"~,au.., : t, ... ,"'"": ... • ·2- ton to 4'\2ili • cility operators of existing facilities must file an•NOI in cordance with these instructions by Harch JO, 1992. Facility ,erators of new facilities (those beginning operations a(t'er ,rch JO, 1992) must file an NOI in accordance with these ,stn.1ctiona at leaet 14 days prior to the beginning of ,eratione. ,ce the completed NOi, site map, and appropriate fee have been ,bmitted to the State Water Board, your NOI will be processed ,d you will be issued a receipt letter with a Waste Discharge lent if icat ion (WOJO) tlumber. Pleaae ufer to this number when ,u contact either the State or RegionAl Water Boards. ,e annual fee is either $250 or $500 depending on the facility ,cation. See,page 7 of these directions to determine your fee, edlots pay a one time fee of $2,000 for their discharge permit. ,eeks should be made payable to1 SWRCB e permit fee ie waived for facilities that currently pay an nual fee for a National Pollutant Discharge Elimination system •PDES) permit or Waste Discharge Requirement (WDR) permit (se-. ·ct I.on XIII of the NOi). , 11 MC o C I UlilDilAUQ.n the information provided on the NOI or aite map changes, you ,ould report the changes to the State Water Board using an NOI ,rm. Section I of the line-by-line in•tructione includes .formation regarding changes to the NOI. .uJ'..lsm11 you have any questions completing tl\e NbI, please call the -propriate Regional Water Board (Attachment 2) or the ate Water Bo~rd at (916) 657-0919. ease type or print your responses on the NOI. Please complete e NOI form in it• entirety and sign ~he certification. ction I--NOI STATUS eek box "A" if this is a new NOI reg;1tration. • • Check box •e• if you are reporting changes to the NOi (e.g., MW contact person, phone number, mailing address). Include the facility WOID N. Highlight All the information that has been changed. • Please note that a change of information do•• not apply to a change of facility operum: or a change in the lgcatlon of the facility, Theae changes require a ~otice of Termination (NOT) and submittal of a new NOI and Annual fee. Contact the Stale Water Board or Regional Water l}oarda for more information on 7, he NOT Form and instructions, Regardless of wheth~r you are submitting a new or revised NO!, you must complete· the NOi in ite 1m.tJ..u.t.Y and the NOi must be signed. Section ll~•l"acility Operator Info.nnation Part A1 Part 81 The facility operator h the legal entity that 1i; re1pon1ible for all permit related compliance activities at the facility. In moilt cases, ti:~ facility operator h the owner of the builineu nr operation where the indu,tr'llll activity, occ11r11. Oive the legal name and the address of the pers0n, firm, public organization, or any other entity that is responaible for complying with the G~r.•!1'-'l Permit, Check the box that indicates the type o! operation. section III~-r•cility Site Information Part Ai Part B: Part C1 Enter the facility's official or legal name a~j 'provide the addr•••• Facilitiea that do not h"v~ a street addre•• mu■t provide crosa-etreets or ~•reel numbers. lllL.ru2.Li.ru:o A P.O. ll.02L1u:l.1:i..:11u .in..f.a.r.LI. Enter the mailing address of the facility if different than Part A. This ftddress may be" ?.O. Box. The contact per•on ahould be the plant or fiit~ manager who 11 familiar with the facility and reeponeible for overeeeing compliance o( the General Permit requirements. Enter the total aiie of the facility in eirh~: acres or s~Jare feet. Also include the r~rc~~:A~~ rt 01 rt E: of the site that is impervious (areas that WAter cannot •oak into the ground, auch ae concrete, aaphalt, and rooftop•~· Determine ~he Standard Induatrlal Claseiflcation (SIC) code which best identifies the industrial ac~ivity that i• taking place at the facility. Thia information can be obtained by referring to the S..t.Andard Xod.111.twUlAui.Usa.t..imt..HAnuu prepared by the Federal Office of Management and Budget which ia availabl~ at public librariea. The code you determine should identify the industrial .activity that require• you to submit the NOI. (F'or example, if the buainess is high school education and thtl activity la school bus maintenance, the code you choo•e would be bu• maintenance, not educatioft,) Moat facilitiu·have only one code, however, additional •pace• are provided for thQ•e facilitie• that have mora than one act~vity. Identify the title of the industrial iictivity that requires you to 1ubmit the NOI (e.g,, the title of SIC Code 2421 ie Sawmilh and Planing Mills, General). If you cannot identify the title, provide a de1cription b~ the regulated actlvity(s). 1 ction IV-•Addr••• !or Corr••pond•nce•· rreapondence relative to the per111lt will be mailed -::u lona 11 Y. Check the box which indicates where you would like r:h corre.spondence delivered, If you want i:orrupondence ■ent another contact person or addreaa different than indicateQ in :tion II or Section III then include.the information on an ~r• sheet oC paper. ction v--Billing Addr••• Inloriution continue coverage .under the General Permit·,· the annual fee ,t be paid. Uae thia section to indicate where the annual fee voice ■ 1hould be mailed, Enter the biliing add-ren if !~erent than the addreaa given in Sectioh• II •Or III. ,:tion VI--R•c~iving Water InCorin..!::iori ,vide the name of the receiving water where •torm ~11ter <tcharge flows Crom your hcility. ,. description of each option included below. l • ·5· Directly to water• of the United States, discharges directly from the facl 1-ity to lake, ocean, etc. Enter the n~me of the (e.g., Boulder treek). Storm water a river, creek, receiving w11ter 2. Indirectly to water• of the United States, Storm WAter dhchargu over adjacent propertiu or rlght-of-wa.ys prior to di•ch~rgin9 to water• of the United States. Enter the name of the closifst receiving WAter le ,g,, Clear Creek). Section VII-•Impl•m~ntation oC Permit R•quire~ente Parts 11. and 81 Part C1 Check the boxe1 that be■t describe the st11tu11 of the Storm Water Pollution Preventioft Pl11n (SWPPP) and the Monitoring Program. .... Check ye ■ or no to que■tion• 1 through 4. IC you answer no to any que•tion, you neen to •••i9n a person to theae tasks immediAt~ly. Ao a permit holder you are nquired to have an SWPPP and Monitoring Program in place prior to the beginning of tacility operation•. Failure to do ao h in direct violation oC the General Permit. Do not send a cc;,py of your SWPPP with your tlO! aubmitt~l. ~ Please refer to Sections A and 8 of the Gener.al Permit for additional information regarding the SWPPP and Monitoring Program. (Jection VIII••Jl•gulat~ry S·tatue in •ome inet.ance•, the facility may be covered under another permit from the state Water Board. If there i• • current NrDES or WDR permit for the facility, li•t th• permit number in the . . apace provided (e,g,, NPDES Penit CA0000UJ, WDR tlo. 96-960), You will not be·r•qulred to pay th• annual fee for the General Permit if you are already paying a f•• for an NPDES or HOR permit. .If the facUity h not covend under • State Water 8011rr.l permit, then •kip to Section IX, S•otion IX••Slt• Hap Provide a "to ■cale" drawing of the fac'ility 11nd it• immedl11te 1urrounding•. Include a• much detail about the site as pos,ibl~. At a minimum, indlcate bulldlng1, material handling and sc'orage areas roade, name• of adjacent •trett!',, storm water disch11rg~ point;, nmple collection point ■, and a north arrow. Whene•1-?: pos•ible limit the map to a •tandard size •h•et o; paper (8 ,5" .x 11" or 11" x 17•). Do not •end blueprint• unleu you 111·-:? ftendln9 one p11ge and it meet• the size limits•• defined at?v~ . ... • - 6 - A location map may also be includisd, t!specially in cases 1herd tlld facilir.y is difficult to find, but. are nor to he auhm ttc /' d :.i~.t..i.t.ut.Ll.o..c_:t.hL.d.t.sLJ!lAO-, This ~ocatlon map can b• cr.at61 f(cm local etreet maps and U.S. Ot!ological Survey (USOS) qlladrongle maps, etc. A r•vi 11 t!J slte map must ht! su~nltted whenever there is a 019nificant change in the fac1llty layout (e.g., new building, c·hangc in storagt! locations, bo11111lary change, etc. l • Sdctlon x--certificatlon \'his se.:tion should bt! 1ead b),' the f1u:ilicy operator. 1'he ,:1::itlti,·aLi,111 pn.lvicles itus111·1111.::e11 that the HOI and aite ma~ were ,;nrnpleted by the [acil1r.y operator in an accurate and compete (a,;hi(•n and wirh Ute knowledge thc1t penalties exist for providing /.Ilse: 111 c0 rm.HHrn, IL also requires 'the Responsible Party to ,:e:·tify Lhac the prt.ivi111ons in the Gdneral Pei·mit will be , c,n.p l 1 e d w I ch, r 1:,, r1<·, 1 11o11 st b,i u 1 ,_1111::d hy: For .., corporation: a i·esponsible corporate officer (or ,:,ut.11011zt!d i11dlvidual), For a Partnership or Sola Propriator ■hip: a general partner 0r tht! prvprl~tor, respectively. For 4 Municipality, State, or other non•F•doral Public Agency: either a principal executive officer or ranking ,?l~.::ct!d l)tf1dal. For a Fed8ral Agency1 officer <,f the agency. either the chief or senior executive • hll.UII or TIit flU.'rJLllUfllICU .. :WIS t150 .,Oa.J.lil:lll1J.L. Alamada County I Except MIDWAY Contra Co•ta County1 £xcept·tor the city ot BREml/00D Xl Dorado County, The area which drain• into LAKE TA.HOE tJl l'runo County& The cltiu ot CLOVIS and f'RSSNO (and' incorporated ialande within the Fr,,uno/Clovh 'areal Xarn County1 The city o! BAKERSFIELD Lo• Ang•l•• County, Except th• clti .. o! AVALOH, l..WC>.ST£R, PAI.H.DALfi:; and .-rcu with zip cod .. fJS2J, fHH, USJS, jJSJ&, jJSO, 9JSH, 9J5SO, .93551, . .9JS5J, 13560, •nd '35'l: Or&-!19• County Plac•r County, The area which draln11 into L.tk• Tahoe Riverdd• County, Th• cith• o! AGIIANGA,. ALB&:IUllLL, ANZA, BAMHNG, BEAI.JHONT, CAJCUILc..>., CALIHESA, 'CANYON LAKE, CAT111'.DR>.L CITY, C/IERRY VALLEY, CICINO, COACHELLA, COLTON, CORONA, DESERT HOT SPRINGS, EDGn-lOITT', E.'LSINORE, GI[,.HAJI IIOT SPRINGS, HE:Hf:1', IIIGI/GROVI:, 1/0HEWID, IDYLLWILD, ItfDIAJI WELLS, INDIO, LA QUINTA, LAKJ. J.LSINOR£, LAICEUND VILLAGi, L.AKEVIiW, HENCH£, MIRA LOH.A, HORENO, HORiNO VA~LEY, MOin-rtAIN Cnn'iR, HIIRRIETA, NORCO, NUEVO, PAUi DESERT, PAU( SPRI»GS, Pl:DLiY, Pl'.1UtIS, WICHO HIR.J.G£, REDI..ANVS, IUViRSIDE, ROOOr..>.ND, RUBIDOUX, SAGE, !JAN JACINTO, SUN CITY, SUN?IYHEAD, TEMECULA, 1'ICOH>.S HTN, l{ILDaof>JI, WINCHESTER, NOODCREST, •nd VALL£ VISTA ' SacraJnanto county, Except !or the city ol ISLr.tON San Bernardino County1 Tht c!tiu of ALTA LOW., AmELUS OAKS, BIG 8£,t.q CITY, BIG B£AR LAKE, Bc.ooHINGTON, CAJON JUNCTION, c>.HP ANGELUS, CHINO, CIIINO IIILLS, COLTON, CDROW., CUCAMONGA, DE.VORE, V.ST HIGI/LANDS, £TIWANPi\, FAllNSKIN, f'OHTAN.A, FOREST FALLS, GRANO TERRACE, GVASTI, HIGIILAND, LONA LINDA, LOS SER.RANOS, Lf.T'Li CltttlC, HENTOHi, HONTCLAIR, HT. BALDY, HtJSCOY, NORCO, ONTARIO, POUONA, RANCIIO CUCAMONGA, PtDLANDS, RIALTO, RUNNING SPRINGS, SAN BERNARDINO, S£VEH. OAKS, UPLAND, and YUCAIPA San Di•go County1 Except for the cltl.u of AGUA CALirNTE SPRIIIOS, SORR£GO, BOIi.REGO SPRINGS, BOIILJ:VAltD, DilliRT SHORiS, DOS C-'BEZAS, JACI/HB)., JULIAN, HOlJNTAIN SPRitlO,·' OCOTILLO HELLS, .. ·.,,a SAJ{ FELIP£ Sa.n Joaquin County1 The city of STOC/CTON san Ma.tao County Santa Clara County, Exc■pt for th• citi•• of BELL STATION, BOLDER CREEK, GILROY, IIOLLISTER, HORGAN I/ILL, SAN FELIPI>, SAN H>.RTCN, SARGENT, 1and SVE.>.D>.L Solano County1 The clti•• of FAIRFIELD •nd SUISUN CITY Sta.nhlau• County1 Th• city of HOD£STO Ventura County, The clt!u ol C>.H>..11,ILLO, FILL.HORli:, g::>ORPARK, 0.JAI, OXNARD, PORT HU£N£HE, SAN BIIEttAVf:NTURA, SANTA PAI/LA, s:.'11 V>.LL£'Y •nd TIIOUSMTD OAKS ' • Attachment -I DEFINITIONS "Best Management Practices• t"BMPs") means achedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce L he pollution of waters of the United States. BHPs also include treatment measures, operating procedures, and practiceo to control facility site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage. nMPs may' include any type of pollution prevention and pollution control measure neceaaary to achieve compliance with this General Permit. Clean Hater Act (CWA) means the Federal Water Pollution Control Act enacted by Public Law 92·500 aa amended by Public Laws 95·217, 9S·S'76, 96•-183, and 97•117; 33 USC. 1251 et seq. "Facility• is a collection of industrial processes discharging storm water aaaociated with industrial act;.,ivity wi1 hin t.111! propt!l'ty bound.iry or operational unit. "Non-Storm Water Discharge» meana any diacharge t~ atorm sewer sy~tems that is not compoaed entirely of storm w1ter. "Significant MatP.rials• includes, but is not limited to1 raw materials; fuels; materials such aa solvents, detergents, and plastic µel lets; finished material• auch as metallic products; rnw materials used in food processing or production; hazardous substances designated under Section 101 (14) of Comprehensive En~ironmental Response, Compeneat. i un, and Liability Act (CEkLCA) 1 any chemical the facility is required to report pursuant to Sectio~ 313 of Title lll of Superfund Amendments and Reauthorization Act (SAR.Al: (ertllizers; pesticides, and waste products such as ashes, slag, and sludge that have the potential to be released with storm water dischargea. "Significant Quantities• is the volume, COl\ceni:.rations, or mass of a pollutant that can cause or threaten to cauae pollution, contamination, or nuisan~e; adveraely impact human health or the environment; and/or cause or contribute to a violatio11 of any applicable water quality standards for the receivlnu water. ; ••:."•· .. , ... :-. ,. "Significant Spills• includes, but la not limit~d to: releases of oil or hazardoua substances in excesa of reportable qunntities under Section 311 of the CWA (see 40 CFR 110.10 and 117.21) or Section 102 of CERCLA (see ~0 CFR 302.4), "Sto1m Wilter" means storm water runoff, snow melt runoff, and storm water surface runoff and drainage, It excludes infiltration and runoff from agricultural land. • • 9, "Storm Water Associated with Industrial Activity• means the discharge from any conveyance which i• uaed for collecting and conveying storm water and which i• directly related to manufacturing, processing, or raw materials atorage areas at an industrial plant. Th~ term doe• not include dischilrges from facilities or activities excluded from the NPDES program. For the facilities identified in Categories 1 through 9 of Attachment 1 of thi• General Permit the term includes, but is not limited to, •tonn water dia~hargea from industrial plant yarda1 immediate acce11 roads and rail lines used or traveled by carriers of raw materials, manufactured products, waste material, or by-products uaed or created by the facility; material handling site11 refuse aites; sites used for the application or disposal of process Wil&tewaters (as defined at ,40 CFR Part 401); situ uaed tor the storage and maintenance of material handling equipment; sites used for reaidual treatment, storage, or di1posa1 1 ■hipping and receiving area,, manufacturing buildinga1 atorage areas (including tank farma) for raw materials, and intermediate and finhhed prod\1cte1 and areu where industrial activity has taken pl1ce in th• paat and •ignificant materials remain and are exposed to etonn water. for the facilities identlfied in Category 10 of Attachment 1 of thil _General Permit, the tenn only includea atonn water discharges from all arean listed in the previous sentence where material handling equipment or activitiea, raw material ■, intermediate products, final products, waste materials, by-products, or industrial machinery ue expoud to storm wa tt,t. Material handling activities include the 1 atorage, loading and unloading, tranaportation, or conveyance of any raw material, intermediate product, fini•hed product, by-produce or waate product, The term excludea area• located on plant ' landaraeparate from the plant'• industrial activities, such . as of.ice buildings and accompanying parking lots as long as the drainage from the excluded areas i■ not mixed with storm water drained from the ·above described areaa. Industrial facilitie1 (including indu1trial facilitie■ that are federally, State, or municipally owned or operated that meet the deacription of the facilitiea lieted in thla paragraph) include thoae facilitiea de•ignated under 40 CFR 122.26 (al (ll (v). ...------------------------------------------------------------ BI\T BCT l)MPs CERCLA CF'R CWA Oi,neral Permit GMP NF;C /lOJ NOT IIPDES 0(.0 llCM Regional Water Board RQ SARA SIC SMCM SPCC State Hater Board SWPPP TOC TSS l,J, S. EPA WOID WDRa • Attachment 5 ACRONYM LIST Best Availabie Technology Economically Achievable Dc•t Conventional Pollutant Control Technology Dest Management Practice• Comprehenaive Environmental Reapon••• Compenaation, and Liability Act of 1980 (Federal Superfundl Code of Federal Regulation• Clean Water Act General Industrial Activitiea Storm Water Permit . Oroup Monitoring Plan No E~poaure Certification Notice of Intent Notice· of Termi·nation National Pollutant Diacharge Elimination syatem • Oil and Grease Reaource, Conaerva·tion, aj\d Recovery Act Regional Hater Quality Control Board Reportable ·Quantity Sup•rfund Amendment• and Reauthorization Act of 198' Standard Induatrial Claaaification Surface Mining Control and Reclamation Act Spill Prevention Control and Countermeaaurea State ,Water Reaourcea Control Board Storm Water Pollution Prevention Plan Total Organic Carbon Total suapended Solid• U.S. Environmental Prot•ction Ag.ency Waste Discharg•r Identification Waste Discharge Requirement• \ .... ,. 11 I .: i ,,.j .. • • • • • APPENDIX D SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD 303( d) LIST AND TMDL PRIORITY SCHEDULE • REGION· TYPE 9 B 9 B 9 C 9 C 9 C 9 C • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD Approved by USEPA: 12-May-99 'HYDRO:: . . .• , .. ;UNIT.·.:.· POiLtiTANT/~TR!:SSb~~ :, ;., : SOVRC!= . •• . ; ·., .size . ,. . START END MISSION BAY SAN DIEGO BAY PACIFIC OCEAN, ALISO HSA 901.13 906.400 900.00 901.13 PACIFIC OCEAN, BUENA VISTA HA 904.20 904.20 PACIFIC OCEAN, CORONADO HA 910.10 910.10 PACIFIC OCEAN, DANA POINT HSA 901.14 901.14 . -·---·-·---------- PRl9RITY • :A!=FECTED l;INIT • DATE DATE Eutrophic Medium Acres 0705 0708 Nonpoint/Point Source High Coliform Count Low 1540 Acres 0799 0709 Nonpolnt/Point Source Lead Medium 1 Acres 0705 0708 Nonpoint/Point Source ,,, 'N' 'd' ,,,. -..... ~ ~ ·.~~«, ,:' Benthic Comm. Effects High 172 Acres 0198 0703 The listing covers the following areas: Near Sub Base 16 acres, Near Grape Street 7 acres, Downtown Piers 10 acres, Near Coronado Bridge 30 acres, Near Chol/as Creek 14 acres, San Diego Naval Station 76 acres, Seventh Street Channel 9 acres, North of 24th Street Marine Terminal 10 acres. Nonpoint/Point Source Copper High 50 Acres 0198 0703 This listing is for dissolved copper in the Shelter Island yacht Basin in San Diego Bay. Nonpoint/Point Source Sediment Toxicity High 172 Acres 0198 0703 The listing covers the following areas: Near Sub Base 16 acres, Near Grape Street 7 acres, Downtown Piers 10 acres, Near Coronado Bridge 30 acres, Near Chol/as Creek 14 acres, San Diego Naval Station 76 acres, Seventh Street Channel 9 acres, North of 24th Street Marine Terminal 10 acres. Nonpoint/Point Source ',, . High Coliform Count Medium 0.01 Miles 0797 0701 Nonpoint/Point Source ., f'', .,~ , ,·,,,, , t , ,,'l,,'3', '' •,"' ' ..:r-"s,., ,1 > ,,,,_ ,,, ,r ,'" •' ~-'"".' '' ',1,,'i,••:~ ,..,,_, , ,, High Coliform Count Low 0.02 Miles 0799 0709 Nonpoint/Point Source High Coliform Count Low 0.04 Miles 0799 0709 Nonpolnt/Point Source ',,,' High Coliform Count Low 0.06 Miles 0700 0710 * Comments presented under each poiiutanUstressor are not required under Clean Water Act Section 303(d). In a few cases, they provide necessary information. Nonpoint/Point Source 1 • • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD REGION TYP!; , 9 9 9 9 9 9 9 9 C C C PACIFIC OCEAN, ESCONDIDO CREEK HA 904.60 904.60 PACIFIC OCEAN, LAGUNA BEACH 901.12 HSA 901.12 PACIFIC OCEAN, LOMA ALTA HSA 904.10 904.10 C PACIFIC OCEAN, LOWER SAN JUAN HSA 901.270 C C C C PACIFIC OCEAN, SAN CLEMENTE 901.30 HA 901.30 PACIFIC OCEAN, SAN DIEGO HU 907.00 PACIFIC OCEAN, SAN DIEGUITO HU 905.00 PACIFIC OCEAN, SAN LUIS REY HU 903.00 907.00 905.00 903.00 High Coliform Count Nonpoint/Point Source High Coliform Count Nonpoint/Point Source ,~«":•¥', ~• ,,, , , V ,'"",''a '",'/ ',< " ; >-, ',M,,.', ,>1;', :0, ', High Coliform Count Nonpoint/Point Source , < • High Coliform Count Nonpoint/Point Source ',.,, 0:. , ,,, , , < a/~ ' ,,,, High Coliform Count Nonpoint/Point Source High Coliform Count Nonpoint/Point Source High Coliform Count Nonpoint/Point Source High Coliform Count Nonpoint/Point Source • Comments presented under each pollutant/stressor are not required under Clean Water Act Section 303(d). In a few cases, they provide necessary information. 2 Approved by USEPA: 12-May-99 size, , ', < ,, START , END AFFECTED ::;, :u~rt\ DATE DATE Low 0.02 Miles 0799 0709 Low 0.15 Miles 0700 0710 Low 1 Miles 0799 0709 Low 0.02 Miles 0700 0710 Low 0.15 Miles 0700 0710 Low 0.5 Miles 0799 0709 Low 0.02 Miles 0799 0709 Low 0.01 Miles 0799 0709 • • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD REGION T'(PI; 9 C 9 C 9 C 9 C 9 C 9 E 9 E 9 E PACIFIC OCEAN, SAN MARCOS HA 904.50 PACIFIC OCEAN, SCRIPPS HA 906.30 PACIFIC OCEAN, TIJUANA HU 911.00 SAN DIEGO BAY, LINDBERGH HSA 908.21 SAN DIEGO BAY, TELEGRAPH HSA 909.11 AGUA HEDIONDA LAGOON ALISO CREEK MOUTH OF ORANGE ,'' :,,· 'j _, BUENA VISTA LAGOON 904.50 High Coliform Count 906.30 High Coliform Count 911.00 High Coliform Count 908.21 High Coliform Count 909.11 High Coliform Count 904.310 High Coliform Count Sedimentation/Siltation 901.1301 High Coliform Count 904.210 High Coliform Count Nutrients * Comments presented under each poliutanUstressor are not required under Clean Water Act Section 303(d). In a few cases, they provide necessary information. Nonpoint/Point Source Nonpoint/Point Source Nonpoint/Point Source -~ Q •..... ,, ... , .. w. ,) ',"', ,'\',I<'<' ,,, ". Nonpoint/Point Source Nonpoint/Point Source Nonpoint/Point Source Nonpoint/Point Source Nonpoint/Point Source . . . . ~ . Nonpoint/Point Source Nonpoint/Point Source 3 Approved by USEPA: 12-May-99 __ . SIZE , START END •• AFFECTED • . ·UNIT. DATE.. DATE Low 0.01 Miles 0799 0709 Low 0.13 Miles 0799 0709 Low 3.2 Miles 0798 0711 Low 0.2 Miles 0799 0709 Low 0.01 Miles 0799 0709 Low 5 Acres 0799 0709 Medium 5 Acres 0704 0707 Medium 0.3 Acres 0797 0701 Low 350 Acres 0799 0709 Low 150 Acres 0704 0707 • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD REGION .JYP.E 9 E FAMOSA SLOUGH & CHANNEL 906.400 9 E LOMA AL TA SLOUGH 904.100 9 E LOS PENASQUITOS LAGOON 906.100 9 E SAN ELIJO LAGOON 904.610 9 E SAN JUAN CREEK (MOUTH) 901.200 9 E SANTA MARGARITA LAGOON 902.110 9 E TIJUANA RIVER ESTUARY 911.110 I Sedimentation/Siltation Nonpoint/Point Source Eutrophic Nonpoint Source Eutrophic Nonpoint Source High Coliform Count Nonpoint Source ,' ,,.. .. ' ,, '',,. , ., ~,' _. ... ,~ Sedimentation/Siltation Nonpoint/Point Source Eutrophic Nonpoint/Polnt Source High Coliform Count Nonpoint/Point Source Sedimentation/Siltation Nonpoint/Point Source ', ' , ,',' ~ ' ,.,, ' - High Coliforll'I Count Nonpoint/Point Source Eutrophic Nonpoint/Point Source . . Eutrophic Nonpoint/Point Source High Coliform Count Nonpoint/Point Source Lead Nonpolnt/Point Source * Comments presented under each pollutant/stressor are not required under Clean Water Act Section 303(d). In a few cases, they provide necessary information. 4 .. SIZE··.· PRIORIJ'.Y· : • AFFECTED Medium 350 Medium 28 Low 8 Low 8 Medium 385 Low 330 Low 150 Medium 150 Low 2 High 1 Low Low 150 Low • Approved by USEPA: 12-May-99 START END UNIT • DATE DATE Acres 0704 0707 Acres 0705 0708 Acres 0799 0709 Acres 0799 0709 Acres 0705 0708 Acres 0799 0709 Acres 0799 0709 Acres 0704 0707 Acres 0700 0710 Acres 0796 0705 Acres 0798 0711 Acres 0798 0711 Acres 0798 0711 • • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD Approved by USEPA: 12-May-99 H¥:DRO ·-:. '' .. ' ,, ' ',, ' ... ' ' .. SIZE: • .. , • · . START END REGI0!',1 TYPE. • NAN!E·., J' ::,lJNiT '; .. / ·P,Ot.:Ll)TAN1l~t~E$'$6R' 'PRIORITY, AFFECTED .. 'Uf,!,IT-DATE DATE .I' ,..'i Nickel Low 1 Acres 0798 0711 Nonpoint/Point Source Pesticides Low 1 Acres 0798 0711 Nonpoint/Point Source Thallium Low 1 Acres 0798 0711 Nonpoint/Point Source Trash Low 1 Acres 0798 0711 Nonpoint/Point Source ,, ' < '.,,,,, ,, ,.,, 9 L GUAJOME LAKE 903.110 Eutrophic Medium 25 Acres 0708 0711 Nonpoint/Polnt Source '',:"' •• M 9 R ALISO CREEK 901.130 High Coliform Count Medium 1 Miles 0797 0701 Nonpoint/Point Source ' " , , 9 R CHOLLAS CREEK 908.220 Cadmium High 1 Miles 0198 0703 Elevated levels in Stormwater. Nonpoint/Point Source Copper High 1 Miles 0198 0703 Elevated levels In Stormwater. Nonpoint/Point Source High Coliform Count Low 1 Miles 0799 0709 Nonpoint/Point Source Lead High 1 Miles 0198 0703 Elevated levels in Stormwater. Nonpoint/Point Source Toxicity High 1 Miles 0198 0703 Toxicity in Stormwater. Nonpoint/Point Source Zinc High 1 Miles 0198 0703 Elevated levels in Stormwater. Nonpoint/Point Source ',_,,, ~-' 9 R RAINBOW CREEK 902.200 Eutrophic High 5 Miles 0798 0700 Nonpoint/Polnt Source ·--·---·--* Comments presented under each pollutant/stressor are not required under Clean 5 Water Act Section 303(d). In a few cases, they provide necessary information. • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD : RJ=GIQN: TYPE 9 R SAN JUAN CREEK LOWER 901.270 9 R TECOLOTE CREEK 906.500 9 R TIJUANA RIVER 911.110 High Coliform Count Nonpoint/Point Source Cadmium Elevated levels in Stormwater. Nonpoint/Point Source Copper Elevated levels in Stormwater. Nonpolnt/Polnt Source High Coliform Count Nonpoint/Point Source Lead Elevated levels in Stormwater. Nonpoint/Polnt Source Toxicity Elevated levels in Stormwater. Nonpoint/Polnt Source Zinc Elevated levels in Stormwater. Nonpolnt/Point Source , .;;_-,, / ... ,,,• ')':I, a Y, j / -:.•' Eutrophic Nonpoint/Point Source High Coliform Count Nonpoint/Point Source Org. enrichment/Low D.O. Nonpoint/Point Source Pesticides Nonpoint/Point Source Solids Nonpoint/Point Source Synthetic Organics Nonpoint/Polnt Source ---------------------------• Comments presented under each poiiutant/stressor are not required under Clean Water Act Section 303(d). in a few cases, they provide necessary information. 6 Low Medium Medium Low Medium Medium Medium Low Low LOW Low Low Low 1 6 6 6 6 6 6 7 7 7 7 7 7 • Approved by USEPA: 12-May-99 Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles START . DAtEr 0700 0705 0705 0799 0705 0705 0705 0798 0798 0798 0798 0798 0798 END DATE 0710 0708 0708 0709 0708 0708 0708 0711 0711 0711 0711 0711 0711 • • • 1998 CALIFORNIA 303(d) LIST AND TMDL PRIORITY SCHEDULE SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD Approved by USEPA: 12-May-99 REGIO~ TYPE' • \'-•. /. HYDRO·: ' ,:.,. ;, • ' '. :;-1 ·-_; • -:-: 'UNIT ,-t~:, PoLtuT~T/~JRESSdR~ :: -~.::,~-SO(JRCE~~A :' --: -. __ : SIZE START END PR!C)~I_T'f,: • .. _AFFECTED . • J~NIT • .' DATE. DATE Trace Elements Trash REGIONAL WATER QUALITY CONTROL BOARDS 1 North Coast 2 San Francisco Bay 3 Central Coast 4 Los Angeles 5 Central Valley 6 Lahontan 7 Colorado River Basin 8 Santa Ana 9 San Diego WATER BODY TYPE B = BAYS AND HARBORS C = COASTAL SHORELINES E = ESTUARIES G = GROUND WATER HYDRO UNIT I = I AKF'~ / RF'~l=R\/nlR~ () = nr.F'AN AN(') ()PF'N RAV~ R = RI\/F'R~ / ~TRF'AM~ "Hydro Unit" is the State Water Resources Control Board hydrological subunit area. START AND END DATES Start and End Dates are shown as the year or as month/year. "GROUP A" or "CHEM A" PESTICIDES aldrin, dieldrin, chlordane, endrin, heptachlor, heptachlor epoxide, hexachlorocyclohexane (including lindane), endosulfan, and toxaphene • Comments presented under each pollutant/stressor are not required under Clean Water Act Section 303(d). In a few cases, they provide necessary information. Low 7 Miles 0798 0711 Nonpoint/Point Source Low 7 Miles 0798 0711 Nonpoint/Point Source )'1.BBREVlATJONS .• ~ = ~Al INF' I AKI=~ T = WF'TI ANn~ Tlf)AI W= WF'TI AN(')~ F'RF'~HWATF'R 7 • • • APPENDIX E DRAINAGE CALCULATIONS • • • **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE Reference: SAN DIEGO COUNTY FLOOD CONTROL DISTRICT 2001,1985,1981 HYDROLOGY MANUAL (c} Copyright 1982-2002 Advanced Engineering Software (aes) Ver. 1.5A Release Date: 01/01/2002 License ID 1211 Analysis prepared by: Bryan A Stirrat & Associates 1360 Valley Vista Dr Diamond Bar, Ca., 91765 ************************** DESCRIPTION OF STUDY************************** * 10-YEAR RATIONAL METHOD -FOR CDS UNIT DESIGN * * PALOMAR -CITY OF CARLSBAD * * A.C.R. * ************************************************************************** FILE NAME: PALOMR.DAT TIME/DATE OF STUDY: 13:47 02/06/2003 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: 1985 SAN DIEGO MANUAL CRITERIA USER SPECIFIED STORM EVENT(YEAR) 10.00 6-HOUR DURATION PRECIPITATION (INCHES) = 1.800 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE SAN DIEGO HYDROLOGY MANUAL "C"-VALUES USED FOR RATIONAL METHOD NOTE: CONSIDER ALL CONFLUENCE STREAM COMBINATIONS FOR ALL DOWNSTREAM ANALYSES *USER-DEFINED STREET-SECTIONS FOR COUPLED PIPEFLOW AND STREETFLOW HALF-CROWN TO STREET-CROSSFALL: CURB GUTTER-GEOMETRIES: WIDTH CROSSFALL IN-/ OUT-/PARK-HEIGHT WIDTH LIP HIKE NO. (FT) (FT) SIDE / SIDE/ WAY (FT) (FT) (FT) (FT) 0.90 MODEL* MANNING FACTOR (n) 1 30.0 20.0 0.018/0.018/0.020 0.67 2.00 0.0)12 0.167 0.0150 GLOBAL STREET FLOW-DEPTH CONSTRAINTS: 1. Relative Flow-Depth= 0.00 FEET as (Maximum Allowable Street Flow Depth) -(Top-of-Curb) 2. (Depth)*(Velocity) Constraint= 6.0 (FT*FT/S) *SIZE PIPE WITH A FLOW CAPACITY GREATER THAN OR EQUAL TO THE UPSTREAM TRIBUTARY PIPE.* **************************************************************************** FLOW PROCESS FROM NODE 1.00 TO NODE 2.00 IS CODE= 21 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT= .8000 SOIL CLASSIFICATION IS "C" S.C.S. CURVE NUMBER (AMC II) = 91 INITIAL SUBAREA FLOW-LENGTH= 780.00 UPSTREAM ELEVATION= 327.00 DOWNSTREAM ELEVATION= 304.00 • • • ELEVATION DIFFERENCE= 23.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) 10.517 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. *CAUTION: SUBAREA FLOWLENGTH EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.936 SUBAREA RUNOFF(CFS) = 6.36 TOTAL AREA(ACRES) = 2.71 TOTAL RUNOFF(CFS) 6.36 **************************************************************************** FLOW PROCESS FROM NODE 1.00 TO NODE 3.00 IS CODE= 21 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT= .8000 SOIL CLASSIFICATION IS "C" S.C.S. CURVE NUMBER (AMC II) = 91 INITIAL SUBAREA FLOW-LENGTH= 540.00 UPSTREAM ELEVATION= 327.00 DOWNSTREAM ELEVATION= 308.00 ELEVATION DIFFERENCE= 19.00 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) 13.600 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. *CAUTION: SUBAREA FLOWLENGTH EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.487 SUBAREA RUNOFF(CFS) = 3.12 TOTAL AREA(ACRES) = 1.57 TOTAL RUNOFF(CFS) END OF STUDY SUMMARY: TOTAL AREA(ACRES) PEAK FLOW RATE(CFS) 1.57 TC(MIN.) 3.12 END OF RATIONAL METHOD ANALYSIS 13. 60 3.12 • • • Project Description Worksheet Circular Channel Flow Element Method Solve For Input Data Circular Channel Manning's Formu Discharge Mannings Coeffic 0.012 Slope 020000 ft/ft Depth 1.50 ft Diameter 18 in Results Discharge 16.09 cfs Flow Area 1.8 ft2 Wetted Perime 4.71 ft Top Width 3.65e-8 ft Critical Depth 1.43 ft Percent Full 100.0 % Critical Slope 0.017328 ft/ft Velocity 9.11 ft/s Velocity Head 1.29 ft Specific Energ: 2.79 ft Froude Numbe 2.31e-4 Maximum Disc 17.31 cfs Discharge Full 16.09 cfs Slope Full 0.020000 ft/ft Flow Type 3ubcritical untitled.fm2 Worksheet Worksheet for Circular Channel Bryan A. Stirrat & Associates 02/06/03 03:57:26 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA Project Engineer: Angelo Reginaldo FlowMaster v6.1 (6140] (203) 755-1666 Page 1 of 1 • • • Project Description Worksheet Flow Element Method Solve For Input Data Circular Channel Circular Channel Manning's Formu Discharge Mannings Coeffic 0.012 Slope 010000 ft/ft Depth 1.50 ft Diameter 18 in Results Discharge 11.38 cfs Flow Area 1.8 ft2 Wetted Perime 4.71 ft Top Width 3.65e-8 ft Critical Depth 1.29 ft Percent Full 100.0 % Critical Slope 0.009283 ft/ft Velocity 6.44 ft/s Velocity Head 0.64 ft Specific Energ: 2.14 ft Froude Numbe 1.63e-4 Maximum Disc 12.24 cfs Discharge Full 11.38 cfs Slope Full 0.010000 ft/ft Flow Type 3ubcritical untitled.fm2 Worksheet Worksheet for Circular Channel Bryan A. Stirrat & Associates 02/06/03 03:57:02 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA Project Engineer: Angelo Reginaldo FlowMaster v6.1 (614oJ (203) 755-1666 Page 1 of 1 • • / _f_ ·-, .. _,;; ·)1' ,' I I I 2~---. + :o i t- ! -t- } ' :::.:. --. , -:_ •.~ E ·,, 1 ::, .... ~ I I ' .-.. . I ; t-' l -,Mt?t, -----··--·-----"'---~~------·----····----------··•-'-~--~-----~-...... _"¼ ______ ....... ··----· _.Ii,._ __ ,_ -·-~ ...... -~------· ... --·----·--·-·•---.......... ,,_ --_______ ,. _ _.,_._._..., __ , ___ ,_, ·--·--. 118 • • APPENDIX F CDS STORMWATER TREATMENT UNIT • • • • \\\\\\\I DS™ -._.._..., TECHNOLOGIES May 14, 2001 Dear Professional: CDS Technologies is proud to introduce an innovative gross pollutant trap featuring a non blocking screening technique. This process, developed in Australia under international and United States patents, is ideal for applications where solid and floatable pollutants need to be removed from storm water or combined sewer overflows. CDS' s non-blocking, indirect screening technique was developed in 1992. Through research and field application, the technology is now refined to successfully capture sediments and floatables under very high flow rate conditions. The system processes hydraulic loads in excess of 80 gallons per minute per square foot on the plan view surface area. This high performance is accomplished through a uniquely balanced hydraulic system that employs a deflective screen while using existing energy within the flowing water. The true innovation of the non-clogging screening technique is that the unit has no moving parts, i.e., no mechanical equipment is necessary to operate the system. This Technical Manual provides details that help you understand the general design of a unit. The Manual provides information to determine the correct style and size of the CDS® unit to fit your application. Should you need assistance, CDS® offers the complete range of engineering and construction services to plan, design and construct these storm water treatment units. Precast units are presently available in model sizes up to a screen diameter of 10 feet, processing design flows of up to 64 cubic feet per second (cfs). Cast in place units, using conventional construction techniques can be constructed to handle flows to 300 cfs. We also provide premanufactured precast manhole units that are designed for treating smaller flows, 0.7 to 6 cfs. These smaller units are ideal for treating runoff from parking lots, vehicle service areas and other locations subject to the build-up of oil and grease. With the addition of a baffle and sorbents, all CDS® units are effective at capturing 80% to 90% of free oil and grease transported within storm water. I am very enthusiastic about the positive impact that CDS®technology will have on our efforts to treat storm and combined sewer overflows. If you are interested in learning more about this innovative technology, please contact one of our offices. Sincerely, ~~J President CDS Technologies, Inc. • http:/ /www.cdstech.com/ • cds@cdstech.com 3950 Long Beach Blvd. • Suite l 00 • long Beach, CA 90807-5411 • Phone {562) 424-6334 • Fax (562) 424-8336 • • cos® TECHNICAL MANUAL CONTENTS cos® TECHNOLOGY····································································································· 1 HYDROLOGICAL ANALYSIS .......................................................................................... 2 HYDRAULIC DESIGN ..................................................................................................... 2 Maximum Water Surface ............................................................................ 3 STRUCTURAL DESIGN .................................................................................................. 3 cos® MODELS ·········································································································4 cos® VARIABLE COMPONENTS ··················································································4 Screen Height. ............................................................................................ 4 Screen Aperture ......................................................................................... 4 Sump ......................................................................................................... 4 CDS® Covers .............................................................................................. 4 cos® SUMP CLEANOUT ·······························································································5 cos® MAINTENANCE ····································································································5 Storm Water Applications ........................................................................... 5 TABLES A MODEL PERFORMANCE CAPABILITY .................................................... 6 FIGURES GENERAL DESCRIPTION OF UNIT, PLAN VIEW .................................... 7 -GENERAL DESCRIPTION OF UNIT, ELEVATION VIEW ......................... 8 FIBERGLASS MODELS ......................................................................... 9 PRE CAST MANHOLE MODELS .............................................................. 10 PRE CAST CONCENTRIC MODELS ............................................... 11 PRECAST MODELS .................................................................... 12 CAST IN PLACE MODELS ............................................................ 13 APPENDIX A ASSEMBLY AND DETAIL DRAWINGS FOR cos® MODELS TECHNOLOGIES cos® TECHNICAL MANUAL CONTENTS • APPENDIXB HYDRAULIC DESIGN EXAMPLE ...................................................................... 81 APPENDIXC EXAMPLE INSTALLATION DRAWINGS .............................................. 6 SHEETS APPENDIX D PERFORMANCE, PRODUCT & INSTALLATION SPECIFICATIONS PERFORMANCE SPECIFICATIONS ...................................................... 01 PRODUCT SPECIFICATIONS ................................................................ 04 · INSTALLATION SPECIFICATIONS ...................................................... 013 OIL SORBENT ...................................................................................... 030 • • ii TE<HNOLOGIES • • • CDS Technologies, Inc., CDS TECHNOLOGY Continuous Deflective Separation (CDS®) is an innovative technology that is revolutionizing liquids/solids separation in storm water and combined sewer overflow industry. The technology accomplishes high efficiency separation of settleable particulate matter and virtually 100 percent capture of floatable material. Its application is ideal to any situation where removal of gross pollutants is desired. The primary features of the CDS® system are: ♦ EFFECTIVE: capturing more than 95% of solid pollutants ♦ NON-BLOCKING: unique design takes advantage of indirect filtration and properly proportioned hydraulic forces that virtually makes the unit unblockable. ♦ NON-MECHANICAL: the CDS® unit has no moving parts and requires no supporting mechanical package to affect solid separation from stormwater flows. ♦ LOW MAINTENANCE COSTS: because the system has no moving parts and is constructed of durable materials. ♦ COMP ACT AND FLEXIBLE: design and size flexibility enable units embodying the CDS® technology to be used in a variety of configurations and in limited spaces . ♦ HIGH FLOW EFFECTIVENESS: the technology remains highly effective across a broad spectrum of flow ranges, with hydraulic loadings exceeding 80 gallons per square foot of plan surface area. ♦ ASSURED POLLUTANT CAPTURE: all materials captured are retained during high flow conditions. ♦ SAFE AND EASY POLL UT ANT REMOVAL: extraction methods allow safe and easy removal of pollutants without manual handling. ♦ COST EFFECTIVE: total costs are lower per mass material captured compared to existing available alternatives. CDS® offers small separation units to process flows of 1 cubic foot per second (cfs) or less. The smallest unit is ideal for small drainage areas such as parking lots. CDS® offers a range of premanufactured units sized to process typical drainage flows from new and existing urban developments. CDS® also offers design services for larger cast in place units to meet the treatment requirements of more significant runoff flows generated by larger drainage areas. To date, CDS® can design units capable of processing up to 300 cfs. CDS® units are available in fiberglass for flows up to 3 cfs and in precast reinforced concrete modules for all applications processing flows up to 64 cubic feet per second. For applications requiring larger flow processing, units are designed complete with construction specifications for cast in place construction. 1 • • • CDS Technologies, Inc., Units can be readily adapted to pipelines, box culverts, and open channels with varymg geometric shapes. CDS Technologies® includes three "Manhole" units in its Model lineup. These are uniquely designed for in line use on small pipelines to 36" in diameter, where desired process flows are 6 cfs or less. The CDS® technology including its high flow bypass weir is neatly packaged inside of 5 ', 6' and 8' diameter manhole stacks. These particular units have been specially configured to allow an effective oil baffle system to be installed increasing the capacity to hold greater quantities of free oil should the need arise. For piping larger than 36", CDS Technologies® recommends using a standard beside line unit with a diversion weir box designed specifically to accommodate the larger pipe. HYDRO LOGIC ANALYSIS In storm water applications, an analysis of the catchment in terms of its size, topography and land use will provide information for determining the flow to be expected for various return periods. Based on the pollutograph (if known), a CDS® unit can be designed for the flow which mobilizes the gross pollution in the catchment. Since there are variations in catchment response due to region, land use and topography, CDS Technologies® recommends the selection of a design flow for treatment having a return period between three months and one year. Typically, it is not necessary to design CDS® units to process a conveyance system's design flow in order to achieve a very high level of pollutant removal. An effective design recognizes that the vast majority of pollutants are mobilized in flows that are well below the "design capacity" for the conveyance facility. Field evaluations to determine pollutant mobilization flows in combined sewer overflows have determined that the pollutants are released and mobilized with flows having return periods of 3 to 6 months. The majority of pollutants in storm water are mobilized in similar events. It is well recognized that even though the three-month to one-year event is well below the average system's capacity, the actual volume that is generated in the catchment from events smaller than these is about 95% of the total annual volume generated by the catchment. It is worth noting that a VERY small quantity of solid pollution actually travels in these higher flows, therefore, from a practical perspective, designing for the three month-to one year event is virtually designing to treat nearly 100% of the runoff that will be transporting pollution. HYDRAULIC DESIGN Every CDS® installation requires a detailed hydraulic analysis to ensure the final installation will properly perform to effect optimum solids separation without blocking the separation screen. Proper design requires knowledge of the conveyance system, and its performance through its design flow range and the hydraulic performance of the selected CDS® unit through the same flow range. After the CDS® design flow is determined, the appropriate standard model can be selected from TABLE A on Page 6. Each model on Page 6 identifies a reference PAGE on which additional, detailed information about the selected model is available. The design flow is diverted into the CDS® unit by constructing a diversion weir across the flow path of the conveyance facility. The approximate height of the weir can be established by determining the hydraulic grade line (HGLdls) in the system immediately downstream of the 2 'eDs ~,.,...,_~ • • • CDS Technologies, Inc., CDS® unit and adding the CDS HEAD LOSS (hc<ls) identified on the PAGE referenced for the unit selected. The sum of the above represents the HGLuts required at the entrance to the diversion weir. HGLuts= HGLdts + Ilcds The height of the CDS diversion weir can then be determined to be: Weir Height= HGLu1s -Invert Level Maximum Water Surface or HGL Upstream of the CDS Installation The head loss identified in the Tables on Pages 9 -13 represents the ideal hydraulic installation. The head required to operate a CDS® unit at the CDS® design flow does not control the maximum rise in water surface upstream of the CDS® unit. At the CDS® design flow; the HGL is at the top of the diversion weir. For most installations this is well below finished grade. The maximum increase in water surface occurs when the conveyance system reaches its design flow. When this flow occurs, the actual flow through the CDS® may be altered, with the balance of flow passing over the diversion weir. Based on laboratory measurements and analysis, it has been established that the actual head loss under system design flow will not exceed 1.3 x V2/2g in a well-designed diversion structure, where Vis the design flow velocity in the system when the pipe is flowing. To assure passage of system design flow through the weir area, the unobstructed area provided above the weir must be equal to or greater than the cross sectional area for the pipeline entering • the weir box. In recognition of the potential that the CDS® may fill up with captured material and lose its conveyance capacity, the hydraulic evaluation must include analysis under this scenario to understand the potential for flooding upstream. The effects of the diversion weir primarily influence the rise in the water surface under the conveyance system design flow. The actual effect can be controlled by properly designing the weir length and clear height above the weir to take advantage of the potential energy that can be developed in the system without inducing flooding upstream. CDS Technologies recommends that the head loss across the weir be limited to no more than 1.4 times the CDS® unit headless at its design flow to ensure that it continues to operate properly during the conveyance system's peak flows. An example of the hydraulic design process is provided under Appendix B. STRUCTURAL DESIGN All CDS® units are designed to withstand equivalent fluid pressures that the unit may experience during its life. The water table at the installation site should be known, or a conservative estimate will be made on the maximum expected. Units are analyzed assuming that it is empty and full buoyant force is acting on it. The foundation material needs to be adequate to support the structure's weight without allowing differential settlement. The materials for manufacture of precast units are fully described in Appendix D "Product & Installation Specifications" of this Manual. 3 • CDS Technologies, Inc., Fiberglass units are placed in areas with light pedestrian traffic areas or installed with traffic bearing covers to protect the unit from vehicular traffic loads. All cast in place concrete designs are based on using structural concrete with minimum ultimate strength of 4,000 pounds per square inch (psi), with steel reinforcement having a minimum ultimate yield strength of 60(103) psi. Concrete and steel reinforcement are as noted in Appendix D, unless otherwise specified for site-specific conditions. CDS MODEL DESIGNATION CDS® units are identified by their process screen diameter. They are also identified by its application with "SW" designating "Storm Water", "SU" designating "Storm Unit" "CS" designating "Combined Sewer". Model families are designated by the letter "F", "P", PM, or "C", designating "Fiberglass", "Precast", Precast Manhole, or "Cast" in place, along with the application letters and a pair of number designations such as PSWXX_XX. The first XX represents the separation screen diameter in feet; the second _XX designates the height of the separation screen in feet (see TABLE A on page 7 for further description of unit designations). General manufacturing details and weights are included for the various models under Appendix A. CDS VARIABLE COMPONENTS The variable components in a CDS® unit within a model family are the screen height, the screen aperture ( opening), sump diameter and depth, and type of cover. • Screen Height • The screen height is important within a model family because it controls the design flow that can pass through the unit without clogging the screen. In general, screen heights can vary between 60 to 150 percent of the screen diameter. Screen Aperture The standard screen for storm water applications is 4700 microns (.185 inches) for coarse screening. A 2400 micron (0.095) is available where there is a need to separate finer sediments than those removed by the 4700 micron screen. The screen aperture ( opening) is important because it sets the capture parameter for settleable pollutants. In general, a CDS® unit with a 4700 micron screen will capture 93% of all particles as small as 1/3 the short dimension of the screen opening. This has been determined through extensive pilot work performed by Tony Wong, PhD, Monash University. Tony Wong's technical paper, fully describing the hydraulic basis on which CDS® achieve effective solid separation, is readily available. Sump The sump is another variable that can be adjusted for site-specific conditions and utility preference. Each Model Family is equipped with a standard sump. However, the diameter and depth can be adjusted to meet site-specific requirements. CDS® Covers Covers can be provided with each CDS® unit. A pedestrian traffic cover is standard with each unit. The cover is designed with an inspection/cleanout hatch. The entire cover may be removed to facilitate cleanout. 4 • • • CDS Technologies, Inc., If required, a traffic bearing cover will be designed, fabricated and furnished. If a traffic bearing cover is desired, the utility should so advise CDS Technologies® to include it in the quote. cos® SUMP CLEANOUT Sump cleanout is a critical component of a successful CDS® operation. The sump is the depository for all settleable pollutants captured by CDS®. The methods for maintenance and cleanout are generally specific, dependent on the preferences of a given agency. The standard model is provided with a standard sump that can be cleaned by methods selected by the utility. At the utility's discretion, a unit can be cleaned using a vacuum truck or a small clamshell bucket, or a basket can be provided to fit a standard sump. If the utility chooses to use a basket, it should advise CDS® Technologies so it can be included in a quote. cos® MAINTENANCE CDS® maintenance can be site and drainage area specific. The unit should be inspected periodically to assure its condition to handle anticipated runoff. If pollutant loadings are known, then a preventive maintenance schedule can be developed based on runoff volumes processed. Unfortunately, that is seldom the case. CDS Technologies® recommends the following for Storm Water Applications: New Installation -Check the condition of the unit after every runoff event for the first 30 days. Checking includes a visual inspection to ascertain that the unit is functioning properly and measuring the amount of deposition that has occurred in the unit. This can be done with a "dip stick" that is calibrated so the depth of deposition can be tracked. Based on the behavior of the unit relative to storm events, inspections can be scheduled on projections using storm events vs. pollutant buildup. Ongoing Operation -During the wet season, the unit should be inspected at least once every thirty days. The floatables should be removed and the sump cleaned when the sump is above 85% full. At least once a year, the unit should be pumped down and the screen carefully inspected for damage and to ensure that it is properly fastened. Ideally, the screen should be power washed for the inspection. The CDS® unit is a confined space. Properly trained people equipped with required safety gear will be required to enter the unit to perform the detailed inspection . 5 • • • TABLE - A MODEL PERFORMANCE CAPABILITY 1-------- ~I c, I a::: w (I) G: ~ () w a::: a... MODEL NUMBER i DESIGN FLOW RATE 1-----------~------, 1 MGD M 3/sec REFERENCE PAGE FSW20_20 FSW30_28 PMIU20_ 15 PMSU20_15 PMSU20_20 PMSU20_25 PMSU30_20 PMSU30_28 PMSU40_40 PSWC30_28 PSWC40_40 PSWC56_40 PSWC56_53 PSWC56_68 PSWC56_78 PSW30_28 PSW50_42 PSW50_50 PSW70_70 PSW100_60 PSW100_80 PSW100_100 CSW150_134 CSW200_164 CSW240_160 I CFS 1.1 3.0 0.7 0.7 1 . 1 1.6 2.0 3.0 6.0 3.0 6.0 9.0 14 19 25 3.0 9.0 11 26 30 50 64 148 270 300 0.7 1.9 0.5 0.5 0.7 1.0 1.3 1.9 3.9 1.9 3.9 5.8 9.0 12 16 • 1.9 5.8 7.1 17 19 32 41 95 174 194 I .03 .08 .02 .02 .03 .05 .06 .08 .17 .08 .17 .25 .40 .54 .71 .08 .25 .31 .74 .85 1.4 1.8 4.2 7.6 8.5 9 10 11 12 13 Conversion: 1 cfs ~ 0.0283 cubic meters per second, or 1 M3 /sec ~ 35.31 cfs 1 cfs ~ 0.64512 MGD or 1 MGD ~ 1.55 cfs MODEL DESIGNATIONS FSW = Fiberglass Storm Water PSW = Precast Storm Water PSWC= Precast Storm Water Concentric CSW = Cast in Place Storm Water PMSU= Precast Manhole Storm Water Unit I I l ,...,..,.,. i--··-X X _ ; --~ Feet _j ! Tenths of a Foot • --·-' Screen Diameter -, -Screen Height i i ,...,..,.,. X X (L or R)* i, Th f Ft i ,____ ent s o a oo ~------Feet * L or R designates the location of the CDS when looking downstream. (L)eft represents being placed on the Left side of the stormdrain, DS (R)ight is placed on the right side. TECHNOLOCtES 6 • • ELEVATION VIEW CDS MODEL PMSU40_40, 6 CFS TREATMENT CAP. XX'¢ MH COVER 8. FRAME ALTERNATIVE ACCESS HATCHES AVAILABLE GROUT OR USE GRADE RINGS AS NECESSARY ct_ SEPARATION l SECTION RISER 1 1 SECTIONS I VARIES VARIES • <I I ' "" 12" lYP ..• .,, i-------e·-o·------i" • (""--BAFFLE I I 4.o·~ -..-SCREEN-----) ---1 28"~ SUMP OPENING SUMP I I : I ., .. " L " 5 " 3 " (lYPICAL) 4 ,: .I 1'-----------9·-s·-------- PROJECT/ DEVELOPMENT NAME CITY & STATE DATE DRA\IN APPROV. 3/24/00 J.S.F. FINISHED GRADE EL=XX.XX' -1- PIPE INVERT EL=XX.XX' SUMP BOTTOM EL=XX,XX' SCALE 1"=3' SHEET 2 • • • SECTION VIEW CDS MODEL PMSU40_40, 6 CFS TREATMENT CAP. xx•• OUTU:T P1PE \ ROTO-HAMMER OR SAW -------CUT OPENINGS FOR PIPE INLET AND OUTLET AS NECESSARY OPTIONAL OIL BAFFLE .~ <...f-1...LLLLL ~tttttb': LLLLLLLL1-LLLLLLLL LLLLLL LLLLL ~~-J. . . . ·. :_ (i-->::·: .. ·_: _:·: .. --· ' ... • ... ·-:·. .· ~ \·:•. . . .· .. • ....... • ... • , ct_ STORM PIPE ..: : .... :· .::· .,:-··:1-__ ....._ .· .. ,.._. : . -:· ... ··• • : •· ROTATE SEPARATION SLAB TO OBTAIN INDICATED OFFSET DISTANCES •• •• •,.·::: '.: -~::··, .: ··:: FLANGES ON INLET SIDES & BOTTOM ATTACHED TO RISER WALL USING 6 ANCHOR BOLTS MINIMUM-(SUPPLIED BY CDS TECHNOLOGIES) NOTES: CENTER OF 96.tl ,----MH RISER SECTIONS CENTER OF SCREEN, ,----2a•t1 SUMP OPENING ATTACH SCREEN TO SLAB USING 4 ANCHOR BOLTS, SUPPLIED BY CDS. xx·, INLET PIPE ACCESS RISER, a·-o· 1.0. 1. THE INTERNAL COMPONENTS ARE SHOWN IN THE RIGHT -HANO CONFIGURATION-THESE COMPONENTS MAY BE FURNISHED IN THE MIRROR IMAGE TO THAT SHOWN (LEFT-HAND CONFIGURATION). S™ ..._..,_,.. TECHNOLOGIES PATENTED 2. FOR PROPER INSTALLATION, GREEN FLANGE ON SCREEN FACES UP. PROJECT/ DEVELOPMENT NAME CITY & STATE DATE DRA'wN APPR□V . SCALE 3/24/00 1 "=2.5' SHEET J.S.F. 3 • • • PLAN VIEW CDS MODEL PMSU40_40, 6 CFS TREATMENT CAP. ,----,~ ELEVATION VIEW I SEE SHEET 2 I I OPTIONAL □IL BAFFLE I I Ci_ STORM PIPE ·..., ..... . ":~ -~ •.. ~: ~-;. FLOW~ L-----►~ ELEVATION VIEW SEE SHEET 2 NOTE: 30'¢ MH FRAME AND COVER (TYPICAL) ~--ALTERNATIVE ACCESS HATCH SYSTEMS READILY AVAILABLE 96' ID CONC. MH RISER THE INTERNAL COMPONENTS ARE SHOWN IN THE RIGHT-HAND CONFIGURATION-THESE COMPONENTS MAY BE FURNISHED IN THE MIRROR IMAGE TO THAT SHOWN (LEFf -HAND CONFIGURATION). PROJECT/ DEVELOPMENT NAME CITY & STATE DATE DRA'wN APPROV, SCALE 3/24/00 1 "=3' SHEET J.S.F. 1 • APPENDIX G BEST MANAGEMENT PRACTICE EXAMPLES • • Additional Information -Storm Channel/Creek Maintenance srnro Corcirlot PJanoior rban sa-eams receive and convey stonn Water flows from developed or developing watc:rsbeds. Planning of stream caridors thus inu:rac:u with urban st0rm wata management programs. If local programs arc intended to controJ °' protect downstream cnvi:romnc:nts by managing flows delivered to lbe manoefs. tbc:n it is logical tbat SUciJ programs sbouJd be supplcmenred by management of the materials. forms. and uses of the downstre3m riparian corridoc. Any ~ for stream alremiolJ or ~t should be investigated foc its po{Cltial flow and stability effects 00 upstre3t:D. oownstream. and ~Y adjacent areas. The timing and rate of flow from various tributaries cm combine in complex ways to alter flood hazards. Each sc:aioo of channel is unique. intlucnccl by its own distribution of rougimess elements. m.anagcmcDt activities. • .and ·sa-cam respooses. Flexibility to adapt ro stteam features and behaviors as they evolve must be induded in sacam redarnatioo planning. The amenity 3od ecology of~ may be enbaoccd through me .laDdsC3pC design opdom of 1) comdor reservation. 2) bank tte'lrmc:nt. 3) geomocpbic restrxatioo. aDd 4) grade control. Comdnr x:c;sc:rnripg • Rcsening sum ccxridoa and valleys to aa:omrnodate 1Wm2l sttcam memdaing, aggradation. degDdatioa. and overbank .tlow$ allows sucams to find their own foan.and geneme Jess oogoing erosion. In Califor nia. open suom coaidoa in rec:m urban developmc:ots .have produo:d rcaC3tiooal open space. iaigadca oC stn:amside plaDtinp, aod tbc ~ amenity of flowing wat.a. Bank; trraancnt • The me of aoncxing. vcgcwivc cover. and flow detTectioo may be used ro ioOuc::ncc ;, cbanner s form. stability, and biotic habitat. To pteVCDt baok erosion. .annoring cm be dooc with rigid COllSUUCtioa matcria1s. sudl as C0DCn:tC, nwomy. wood plaots and logs. ripap. aod ga.bioos. Cooacte linings have been aiticized beomc of lbcir brd: of provisioa oCbiodc b3bit3t. In ccatmi. ripap and g.aNom make reblivc!y pa-ous and flexible linings. BouI. ~ p~ in the bed tedoa: vc!ociry and erosive power. Rlparian vegewioo cm SClbillzc the banks of SttemlS that arc at or Deal' a cooditiO'l of equilibrium. Binding netwoa:s oC roocs macasc bank sbc3r' SU'Cngtb. During flood flows. lC$ilicnt vegemtioo is fon::ed into crosioa-inhibiting mats. Tbc rougmcss of vcgcmica ads 10 lower velocity. fmtbcrredodng erosive effects. SlmctUlal flow deflectial can proc.c:ct banks .from emsioa or alter fish habitat. By cona:ntt3ting flow, a ddleaor C3USeS a pool to be scoured in the bed. f,rancmnc mst1 ,at jog • Resu:nri0o ref ca 10 alta3tioD of distmbed streamS so tbeir Conn and behavior cmulale those ol nndistmbcd s;reams. Naunl ~Ddea are ictai•xxl. with grading to gcmlc slopes oo the iDsidc of curves to allow point bm and riffle-pool~ to devc1q>. Trees arc rctaiDcd ro provide~ quality, biotic productivity, and rooa fer bank stabilizaDoo. ~f&:d by plantings wbae DCCC1sary. A rcucnnvc· apprOIICh i.:an ~ ~ where me sttm is al.read)' approaching equilibrium. However. if upstream uroanizadoa cooriDucs,, ncw flow regime3 will be gCDCtated that could disrupt tbc equilibrium of the ~ sysicn. G::ooc Camrol • A p.,dc comrol sr.ruc:tme is a level shelf of a pmnanent J1l3JCriaL such as stooe. ma.soory. or ~ over which sum water flows. A grade coottOl suucmrc is c.alled a sill weir. or drop strUCtUrC. depending on the rclatioa oC its mvcn eJcYldoo ro upsum and downsttcam chaooeh A sill is instilled at the {ffi:Xisiing cttaoncl hcd devatioo 10 prevent l1p$U'C3U1 migratioo of md:points. It esr.ablisbes a firm tmc levd below which the upsue&11 cbannef can DOl erode. SC7S M unici})21 H.andbook 4-83 Mudl.1993 I i I Additional Information -Storm Channel/Creek Maintenance 11-----------------------------------J ' A weir cc cbcck dam is instllled with invert above tbc precxisung bed clcvarioo. A weir raises the local ~ level of the stream~ causes ag~ca 1¥aeam. The gradient. vcJocity, and erosive pocentia! of tbc sttcam ~1 are rcduc:cd A drop $auc:tUrC Jowcis tbcdownsai:am iovat below its preexisting clevatioa. reducing downsucam gradient and velocity. Wcus and drop saucmrc cooaol erosioa by dissipating energy and reducing slope. velocity= . When carefully applied. grade c:ootrol suucmrcs ~ be highly vasatilc in cstablisbing bumao and enviromneotaJ ba>efits in s&abiliud cbaorY".ls To be successful. applicatioa ol grade cotiaol saucmn:s 5bould be gu;<kd by analysis of tbc sueam ~ bodl upsucam and downsttcam from me area ro be_ reclaimed. E1amole1 °CFlfg;tiyc Pmv;,nv; 1be Califmaia DcpanmCDt olW11a Rcsoura:s_ bcpD tbc ~man Stream R=mdoa Prog:r.am in 198.S. The program provides gs3Dt fu:Dds to mum:ipJilies aod coomunity groups ro impfcmcm sucam rcsuntioa projcc;ts. The projects reduce damages from svcambaot .md ,rr,uersbcd instlbility and floods while •r=cring ~· acsr~ ~ooaJ. and fish and wildlife values. ID Buena V°ISUIPart. upper Ooodway slopes· arc gcDdc and ~ to achieve coatinuity ol usable parx Jaod aaoss the cbaancl of small bouklcn at tbc base oC the slopes. The saii Diqo Rivc;r is a large. 'ICgmtiyely linc,i cbanoel which was planted.in a variety oC spcc:ies to supponriparm wildlif'c while stabi.li:tiDg tbc .Sleep tub of the floodway. REFERENCES Fctpsoo. B.X. 1991. JTtbao Strtarn RccJarnarion, p. 324-328. Joumal of Soil and Water Cooscrvatioo. SC76 Municipal Hmdbook 4. 84 Mmh.1993 • l Table of Content....__ _______________ _ • Best Management Practices SC I SC 10 SCll SC20 CA31 CA32 SC8. SC41 SC71 SC72 -SC75 SC76 Land Use Planning/Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 Housekeeping Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14, 15, 16 Safer Alternative Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ; . . . . 4-1 7, 18 Material Storage Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 ,20 Vehicle and Equipment Fueling ... -......... • ................... --........ 4-25 Vehicle and Equipment Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26,27 Outdoor Storage of Raw Materials, Products, and By-Products .. .-......... 4-28,29 Aboveground Tank Leak and Spill Control ......................... 4-41,42,43 Catch Basin Cl~g ........... _. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67,68 Vegetation Controls ........................................... 4-49,70,71 Detention/Infiltration Device Maintenance .......................... 4-78, 79,80 Storm Channel/Creek Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81,82,83,84 _ .. ESCI _:,,,, ESC2 ESC 10 ESC 11 ESC20 Scheduling .......................................... ; . . . . . . . . . . . . 5-5,6 Preservation of Existing Vegetation .................................. 5-7,8,9 Seeding and Planting ...................................... 5-11,12,13,14,15 Mulching .................................................... 5-16,17, 18 Geotextiles and Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19,20,21,22,23,24 ESC 21 Pust Controls ................................................ 5-25,26,27 ESC 21.1 Dust Control BMPs for Given Site Conditions (Table) . . . . . . . . . . . . . . . . . . . . 5-28 ESC 21.2 Commonly .Used Chemicals for Dust-Control .................... -........ 5-29 t ESC 22 Temporary-Stream Crossing ................................ 5-30,31,32,33,34 ;- ESC 23 Construction Road Stabilization .... : ............................. •. . 5-35,36 • ESC 24 Stabilized Construction Entrance ... ; ............ .-................ 5-37,38,39 ESC 30 Earth Dike ................................................ 5-40,41,42,43 ESC 31 Temporary Drains and Swales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~-44,45,46 ESC 32 Slope Drain .......................................... 5-47,48,49,50,51,52 ESC 40 Outlet Protection .............................................. 5-53,54,55 ESC 41 Check Dams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56,57,58 ESC 42 Slope Rougheningfferracing .................................... 5-59,60,61 D-i ESC 50 Silt Fence ............................................... 5-62,63,64,65,66 ESC 51 Straw Bale Barriers . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 5-67,68,69,70 ESC 52 Sand Bag Barriers ............................................. 5-71.72,73 ESC53 BrushorRockFilter ..................................... 5-74,75;76,77,7-8 ESC 79 Storm Drain Inlet Protection. . . . . . . . . . . . . . . . . . . . . . . . . 5-79,80.8 I ,82,83,84,85,86 ESC 55 Sediment Trap ................................................ 5-87,88,89 ESC 56 Sediment Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-90,91,92,93,94,95 D-ii __ _J Additional Information -Lind Use PlannjngtManagement various aspc:cu of land use pl.anninglmanagcmc:nt an:: designed ro conaol development in specific ways. General arc desig:Ded to cootrol cbe pace of deveJopmc:nt while zorung can resuia the cypes of permissible dcvclopmenL Poor pl;mning often leads to "leap-frog" development whereby vacant land near a ciry's center is b~ for kss ~~vc land oa the outsmts. Anotbcr limitation of the zoning orrfioaDCt'S is cha! dcvelopmc:Dt interests can obtain a "variaDc.c" which allows exemptions to the zooing oo:tioano:. however varianc.e can also be kgmmateJy used to minimize oc delete_ expensive improvements wbcrc it cm~ demonstrau: tb.a.t tbey arc not necessary. RJampl~ of EtiectiYc Programs . Bc:causc of a stroog desire to IX'(XCct the pistiDc Edwards aqwfcr from degradatioo. the City.,oC Austin_ Texas, bas chosen 10 mamge £be impact of JJCW ~in two £undarncn~ ways: through treannent cootrol teqwrancnts and impctvioos m rniuimiz:#im requiterncnti Austin. through its Com{.rcbcmivc w~ Ordimocc. requires that impctvioos cover on remc:otial devcJopmCDt in ecttam arm of tbe city be ffmited. Scdirnentarioo and filtration ponds which will aptme·aod treat the fim CDC-half inch of nmoif from a sit.care rcqmrtd frx developments ot higher intensity such as ~ dcvcJopmeats. In California. Or.Inge County Im used its planning~ to estlblisb cooditioos of approval that require water quality· ~ plan to identify spedfic BMPs to coottol pollutants iD nmolf. REFERENCES . CJty of Austin. .. Eaviroomcnw CrlteriaMaooal: Land.DcveJopment Cede ... City of Austin. Texas.· 1989. Florida DcparunCJt of .Envi:roameotal Regubtioo. °"Florida .Development Maoua.l: A Guide to Sound Land and Water ~ • .Flcrida Dc:pattment ofEzmroamcntal Rcguiatioo. 1988. • , . Lazaro. Tunothy R.. -Uiban Hydrology: A Multiclisciptimry Pe:spcaivc'". Tedmomic Publishing. 1990. _,, Office of Pl:mnmg and~ "'Pt:mning. Zming. and Dcvclopmc:nt Laws." Stuc of Califania Govcmor's Office. Office of Pbonmg·aod~ 1990. Office of P!ammig aod Rcscarch. Jbe c.aJifomia Envi:roomental Quality Aa:". State of C.alifomia-Govanoc's Office. · Office of Pe:mit Assistmce, 1986. Ortoboo. Leonard. "'E.uviromnenta Planning and Decision Making". Wiley & Soos. 1984. State of Calitania ~1m Subdivision Map Ace. Coo.suiting Enginecs aod Laod Surveyors of Califonua. 1992. SC1 M unicipal-Hmdbook 4 -13 Mal"Cny 1993 BMP: HOUSEKEEPING PRACTICES D£SCJUPTION Psomoce efficient and safe homd cc ping poajca (sungc. use, aDd deanup) ~ biadJmr poccnriaUy harmful rnaccriah suda as fcniJizm. pc:stiddcs, cleaning w1udoas. pamt·pl'Oduds. llatcnotm: products. and swimming pool c:t_M::urials .Rcbted iofoaaarioo is poridcd in BMPs SCll. Safer Ahcmativc Products; SC31. Housebokf Hmrdous Waste CoUcctioa: sen, Used Oil R.ccydjng: aad tbc Spill ~~cndauad Cleanup BMPs (SC40ISC41). For illltcmatioa OP specific activities at m1micip1J fadlirit'$, sec Chapter 4, lndusuial HJiodboot. • APPROACH • Paarm a "M.W pn,pam aftc:r lbc many established~~ msmw:ipelirics around tbo SUie and a>unary. Integr.llc dm best management~ as much as possible wiab existing·programs • ~mmridpality. . • lhb BMP bas two key audic:na:s, municipal r.:mpk,yccsand the gencal public. • . Jmplcmcnt mis BMP iD coojmx:d01l with SCll, Safer Altrmativc Products. • For a quiet rc!ctcDCe oa disposal a1temauYcs fer specific~ see Table 4.1. SCSO, IDepl Dumping Coattcil. REQVIREMENTs • • . ·• COit Cowasidcatioos • The primary cost is for staff'timc as noted below. • Rcguladom . • There ate DO rcguiarory rcqaitc:mcnts ID dm BMP . .Existing regulations aJn:ady rc:qairc rnmriripalitics to propaiy S1CrC. use. and dispascot' hazardous marcriaJs. • AdmiDisuatnc / Staffing • Stair 10 train rnonicipal empJoyccs aod 10 coordiDatc public educ:3tion cffcm. • Equip.oeut -'Ibe:rc am DO major cqtrlpncnt rcqmremcnu ID mis BMP. • Tmining Program S.ments New O.Wlop11»nt ~ Comm.rcW ActJvitiH /ndwtru,J Actlvltl# ~ici,,.J FtK:il"ii;j:) lllt,ga/D~ Targeted Constituents .S«llment • Nutrient. 'QH.vy,,,.,. • Toxic M_,.,.,. 0. Flom/,,.,.,,,,.,.. • Ozn,M CMmand- lng Sw.tanc:.t, •• 0/ltlar... 0 B.-ctri, t1 V1n1ns -~~ 0 r7911-1ow .. J,npeot ·~ Requirements 0 Capital eo. Q Odt:om 0 R~latory g St.lflng • Training 0 • Adm/nJ.tratiw • MPDici:pal cmporccs who haDdlc poccndally bamlfu1 rna&crials should be b3UJCd m &'OOd ooosckccping ixiaiccs Pasoaoe1 wbo me pesticides must be trained in their me. The Cali!cmia Dcperw oCPntkide ~gulalioa n~ pcsoddc ~========-I • High O Low dcalcn. cuiify pesticide apptic:atm and ca>dlX1 cm-site impcctioos.. PUBLIC EDUCATION/ PA1tllCIPATION • Public awasencss is a key 10 this BMP . . LIMITATIONS • Tbcrc arc no~ limitations to this best management practice. MllJlicipal Handbook -4-14 SC10 Be ~ Practf • Additional Information -Housekeeping Practices unicipal facilities should follow tbe best mamgemc:nt JX3ctices outlined in Chapr.er 4 of the Industrial Handbook. most of which indude good bousckecping measures.. M1mic:ipalities should develop coottols on the aa,fication of pesticides. herbicides. and fertilizm in public rigbt-0f-ways and at municipal facilities. Controis may include: • List of apJXOVCd pe3ticides and sekcted uses; • Product and appliatioa infomwiol1 for usas; • ' • EquiJmeut use and nwn~ r-occdm~ and • Rcaxd uqmg and public ooda: ~ For the. gencal public, rounicipatitie3 sbou1d ~blisb ll public cduc:a.tioa program that provides infamatioa on such it.ems as su:rm wascrpollutioo mi me beneficial dfcas ot proper disposaJ oo water qualit;y; reading product labels; safer aJtcmativc produds; safe simge. hanc:fting. md dispo.sa1 of~ produds; list of local agencies; ~ emergency pboDc mxmtxn. The progxams listed below have proYidcd this infoonadoa through bcodlmes or bookJets that arc aY3ibble at a variety of places ioduding rotJJlicipll offia.s. hooscbold lmaidous waste collc:d:ioo CfflllS or facilities. and public iofoonatica fairs. • The following mscussioa provides some g~ informadoa on good bousckeeping that may be provided. to the geocr.u public. More specific iufonmtioa 011 particular cbc:mk:aJs ,uy be found in me rcfcre:oce:s ~ below. • Always use c:audoa wbcn handling my h!zardous household product. Many produds cootuu rou: chemicals that cm amc scvcrc injury or death. • Scae household hazardous Jlf'Oduc:ts securely and away from childten. pets, and soun:es olbeat. spam. and .tlamcs. • Stac·podoas in tbciroriginal containas and keep them wcJllabekd OQ.121Jtstore cbcmicals in food comamm. • Read and follow U3C iosu11Ctioos. . • AYOid comact with eyes and skin. Wear gloves and eye procccticn when using hazardous subst3ocn. ~m:21 wear -~ kn:scs which an abs<xbhazardoos ~ Won: in ooly wdl venriiated arC2S. • Use up all of the txcduct ticfae disposing tr give extra ro f.riends. ncigblxn or commmmy groops. • I&ia dispose of .bomcbold haz3rdoos wasu:: . -inlmh. -downstam~trintoaed;s. -down sink or toilet. • -oa-, me ground. or -byboming. • I& dispose of .baz3rdous Wastes at boosebold hazardous wasic c:::olledic,Q cvasts or facilities The Califcmi.a.Integwcd Wast.cMaaagcment.Boaro'sR.ecycling Ho~ 1-800-553-2962. provides infcmwioo oo booscbold hamdoas Wasfc roDectioo progams and facilities. 'Examt?fc., of Eff«m:c Prozrams 'Ibete arc a number of mmmanitics with cffcctiYe programs.. 1bc most pro-active include Santa Clara County and the City of Palo AIID. the City and Coooty of Sm mocbco, and me M1rnicipaliry of Metropolitan Sattle (Metro). REFERENCES The Bay Begins at Yoor D<Xr (Brodmre). Santa CI.n Valley Noopoint Soon:c Pollution Control Program, (No date). Guide to lm.an:b2S Products Around 1be Home (Boot}ct), Hoosd>old Hazarooos Wasu: Project. i989. SC10 < Mun.id~ Ibndboolc MMcla.1993 Additional Information -House«eeping Practicas Hazardous Houscbold Products: A Guide 10-t.bc Disposal of Hazardous HouscboJd Prooucts ~ tbe Use of Noa Hazardous Altmwivcs. California Depamncnt ol Toxic Substance Cootrol Ho.ssebo&d CJeanen and Polisbcs. Chemical Hazards in the Home (Brocburc). Golden Empire He.altb Planning Center. (Nodasc). Solvcn~ Chemical Hazards in tbc Hane (Brochure). Golden Empire Hc:3:1th .Pfanoing Center. (No date) • . Take Me Shopping: A Commncr Guide ro Safe Alremativcs for Household Haz.ardous Products CBooklet). Santa Clara Couoq and City of Palo Ako. 1992. Your Guide to Less Toxic Shopping: Safer Ahmwives fer Your Home and Life! (BootJet). Saa Francisco Housebold Hazardous Wastc'Prog.rma.1992. • , SC10 Municipal lbndbook . 4-16 Marda.1993 • • BMP: SAFER ALTERNATIVE PRODUCTS DE.5CRIPTION Promote rbc use of less harmful products. Altematives exist for most product classes iDchJding fe.nilizm. pesticides. cle3ning solwioos. 3Dd automOtive and paint products. ~ infoonauoo is provided in SCI~ Housckccping Practices; SC3L Hoosclx>ld Hazardous Waste Collectioa; -502. Used Oil R.ecyding: and the Spill_Prcventioo and Cleanup BMPs (SC40ISC41). For information on specific aamtics at munkipaJ .f.acilitics. sec Oiaptet-4. Industrial Handbook. APPROACH • Patt.cm a new progxam after the many ~tablished progxaxm from municipalities arouod tbe state and countty. IntegratC mis best managema11 practice as modi as possible with existing programs at your mmricipality. • This BMP has two key audiences, JPunicipal employees and the gc:neral public:. • Implement this BMP in c:onjuoctioa with SCIO.~ Practice, . • 'Fcca qukkre!crcx::c oo di~ aJtcmativcs foe specific W3Sf.eS. sec Table 4.1. SC.SO. Illegal Dumping Control. • REQUIREMENTS. • Cost Coosidciatioos -The primary cost is for staff" time as noted below. • Rqulatioos This BMP Im DO rcgulauxy rcquitc11iem:s Existing rquJatioos already require municipalities to ICducc me use of hazardous materials. Safer ahcmative5 for use by the gcnaal public arc presc:nted through educatioo I31hcr than required by iqulatioa. • Adrnrnistt'3tive/Staffing -St.al! to edncaie munkipll employees and to coordinate public educarlon eff'ttts. • Equipment -lbetc arc DO majoc eqmpmeDt requirements to this BMP. • TraminJ -Mmucipal employees who handle potentially harmfol mataials should be tramcd Program Saments NtJw Development ~ Commercial Activitiu lnduurial Activitiw <€ii_icipa1 F➔ 1/J.g.l Diacb.rg.. Targeted Constituents • S«Jiment • • Nut:THlnt6 0 Heavy!Ht.i. • To.dclht•ria• 0 ~"'~ 0 Oxy-geno.m.ncJ. lngSu~ • 0//Ac;,... 0 Blldarill" V'll'UNS • IJWy»&w Slgnl&:.nt Jmpct 0 ~Lowor tbmownlm,,.,of lmpfementatlon R~uJraments 0 Capita/Com Q -OIJ,/Com 0 R~ulatory Q St6/flng e Training 0 Admlniabatln • High O Low in cbc USC of safer altc:mativcs. I.========~ • Purcbasmg departmems sbould be cocooraged to pi\XUle Jc:;SS .bazardoos malCriais. POBUC EDUCATION /P AR.TICIPATION • A wan:DCSS is the key to this BMP. It proo1ote3 a will.in~ to try ahanatives and to modifyoJdbehavias. LIMITATIONS • Alrz:mativc prcxlucts may not be available. suitable. or effective in every caz MWlicipal Jhndbook SC11 Be Man Practf ~1993 Additional Information -Safer Attemaiive Products . .Employees at municipal facilities and the general public can botb be educated about safer altanatives by using informa tioa dcveJopcd by a number qf municipalities and organiz:adoos including the programs listed beJow. 1bc following discus,sioo provides some ge:ncral inf ormat.ioo oo safer alrdnatives. More specific information on particu lar hazardous mu::rials and tbc ava.ilabJc altemativc:s may be found in the references listed below. • AulDmodvc poducts • Less IDXic altcmativcs arc not available.foe many auumoave JXt)duds. especially engine fluids. But lbcrc arc altcmadvcs 10 car polishes. degreasers. wmdshield washer solutioa. Re-refined. rccyc1ed oil is also bea:mJing available. • • ~ -Vcgd3blc-bascd <r citrus-based soaps arc available uncplacc pcuoJcum-based soops/derergents. • Paint producU -Water-based painu. wood pcscrvatives. stains. and fmisbcs lire ,vailablc. • Pesaicidc:s -Specific a1trmatne produas er mdbods exist to coouol most inscas. fungi. and weeds.. • ~-Compost and soil amc:ndmcnts arc namral altenwivcs. Exmm>!CS p[Eff'g;tjyc Pmzrnxil-l Tbete are a number ol communities with effective~ The most pro-active include Santa ·0az3 County and the City of Palo Alto. tbc City and County of Sao Francisco. and tbc ~,rnjcipalhy rL Metropolitan ScattJc (Metro). The Bio lDICgJal Resc:iur= Cent.er (BJRC) in Bcrt.eJey cmduas research. and produces txocbmcs and a newsletter oo In~ Pest Management (1PM). - REFERENCES Noce: Many of these re:fcrences i.rovide altcmative products f<r malCriaJs that typically arc used inside and di~ to the smiitary sewer as well m altcmativcs 10 producu that usually c:nd up in the storm drain. . Guide to Hazardous Products Around the Home (Booklet), Household Hazardous Wasu: Project, 1989 . . ~ . Hazardous Homcbold Products: A Guide to tbc Disposal of Hazardous House.bold Products and tbc Use of Non. Hazaroous Altrmaavcs, CalifomiaDcp&_tmcut of Toxic Substance Control (no d3:tc). Heal the Bay, sarc:r !Jtana,tiYCS to Houscbokl Hazardous w~ cno date) •. Housd>old CJeanen and Polishes. Chemical Hazards in tbc Home (Brochure). Golden Empire Health Ptamiing Center, (No date). Solvents. O>cmbl Hazards in tbc Hane (Brochure), Golden Empire Health Planning Cent.er, (No date). 'Ibc Bay Begins at Your Dooc (Brodmre~.Santa'Clara Valley ~t Source PolJuoon Control Progiam. (No date). Tm Me Sboppmg: A Oxnnmc:t Guide to Safe Altcrnatlve3 f<r Household Hamdous Products (Bocclet), Santa Cara County and Oty o(PaJo Alto, (No daac). - Yoar Guk1c to Lc3s Toxic Shopping: Saf~ AhcmaliVC$ fer Your Home and Life! (Boolclet), San Francisco Household ~ Wasae Prognam. 1992. • SC11 Municipal Handbook: 4 -18 Mardi. 1993 { • BMP: MATERIAL STORAGE CONTROL ·D~ON • • COr'ER TO Ml1-l},iZE STGl™WATER I 111 ~ /I~ TOCCM"~ : 5f'll.LS & rua=F Prevent er n:ducc the discharge of polIUllmtS IO staJJl water from m3l.ai3l delivery and swage by minimizing the sungc oC .bazardoa, rnarriab_ ~ su:ring matcmls in a . designakd m. imtaUing sccoodary coottimnmt, rooducting regular iDspcctioos. and trabring employees and subcoouacun. • This ·bc:3t managcmeor. practice primarily ~vcn rnaraiaJ ,jeijvery and sttxagc foe muuici-• pal opmtioas. 1'.crrnatmal sunge.rcialcd 10 the gmml public (e.g., sungc o!pcsti, cides) refer to SCIO Housekeeping Prac:t.ia:s. Foe o<bc:r iafa:matioo t10 rnunicipality handling ofmart:riab. sec Spill Ptcvcntiai and CJeannp BMPs (SC40ISC41) aDd ~ Disposal and Recycling BMPs (SC30-SC32). The Industrial Handbook also o:,owns material ~ btfoonatiaJ foe indusuia1 aaivities at mnnjcjpal f:acilities. APPROACH _ • The key h ro cbign and maintain matcrlal stmgc areas that reduce exposure 10 storm. Stce materials inside er UDder rover oo paved~ -Use secoodary coottinmmt -Mbiirntrn sungc a:od bandfing of .ba:mdooS materials, Impcct stcagc arm regularly. • Foc a quick .rderCDCC oo disposal aJtrmatives foe specific wastes. sec Tahlc 4.1. SCSO. Dlegal Dumpmg CootroL REQUIREMENTS • • • • • Cost Coosidet3tioas -Will vary dcpeming on the size of the facility and the necessary coottols. ReguJatioos -Stmgc of rmive, ignmNr. cc flammable liquids must comply with the Unifoon Fire OxJc aad the Natiooal E1cctric c.ode. Adminktrathc / Swfing -An:ntme I.Del up.ll>-datc invcnti:xics sboald be kept of all stoccd materials. Equipmc:nt • -Keep an ample supply of spill clemup materials near the stmgc area. Tmning -Employees should be well ttained in prorcrmsterial st<ngC. PUBUC EDUCATION/ PARTICIPATION • F.mpJoyce education is paramount for successful BMP implcmrntatioo.. LlMITATIONS • Stcngc sheds often must meet ooilding a:od fire rode requirements. Municipal Handbook 4-19 Program EJements New 0...../opm.nt R .. ldttnml Comm.n:iai Actlvltle. /ndwtn.aJ ActMt;.. ~lclpal F#ICll°"ii;;> Hlt,ga/D~ Targeted Constituents Os«iin»nt • ·Nutrt.nt. 0 H..vy~ • To.de Jh,tetWt, 0 Flollbll,/e ,,,_... 0 ()xygenDemancJ- lngS~ • OIIAG19aM Os.cw.AVTrW# ·~~ • 0 l'roWl9 Lowor Lhiaownlmpect Implementation Requfnmenta Q Capltaleoau Q 0IJleo.t.· 0 R-r,ultdcry 0 Stlllflng • Tl'lllnlng Q AdrdnJ.tndlw l•Hlgh·oiow SC20 Practi ~1993 Additional Information -Material storage Control Tbe following ma1Cria& -are canmonly stcxed at municipal facilities: • Pesucidcs and babicides. • Fettiliz.ers. • Detetp~ • • Peuoleum products such as fuel. oiL and grease. and . .. • Other hazardous cbcmk:als such as acids. lime. glues. paints. solvents. and curing canpounds. . Saoagcoftbcsc mascria1s can pose the following risl::s: • Injury to woct.a's or visitors. • Gtom:dwaret coorarninatioo. • Soil coat:aDrioaticA. and • Saam war.a-comamioarioa. ·'Ibcrc{ore. lbc following steps sbouJd be tam ID minimize your risk: • ~ lr2mcd in e:mcrg=c;y spill deanup proc:cdUles sbouJd be present when dangerous Waste. liquid chemicals. ococbcrwasicsarc dc:1hcrcd. • • • Stoa: ma&e:rials inside oc under cover whcncvcr possible. • De,igmtc a sea2r'C malCria1 sunge area tbat is paved with Poctlaod-c.cznc:nt c:oocrcic. .free of mcks and gaps. and impcniom jn order to a,otam .leab and spills. • Dnlms sured bl ID area where unaumorizcd--pcz-soos--may gain access must be sccun:d to paevc::nt accidental spillage, pilfcuge, ocmy unaulhorizcd use. . • Whenever possil,Je, store materials jn secaxJary CCl"ttinrnc:nt. • Do DOt stcrc chcmicah, drums. oc bagged materials tlirectfy oa the~ P1ac:e these .items m seardaiy cootain mem. • It drmm mo:st be~ DDCOYcicd. store them at a slight angle ID ICCbJcc poading of ramwascr on the lim and ID reduce~ • Stcagc·of reactive, ~gnmblc. or flammable liquids mmt comply with-the Joca1 codes. Contact the Fire Marshal to reriew site JIWCri.ab. quantities, and proposed sungc area ID dctt::aninc spcc:ific rcqpj,cment.s. Sec the Flammable and O>mbustil>Jc!Jqmd Code. NFPA30. • Wbca designing a saagc area. include IIICmJl'CS to prevent and C0IUaDl spills (see BMPs SPl/SP2). • Keq, a acanse, ~ blmuay of lhc matz::riaJs dclilCrCd and stored on-site. ~ · • • Keep your invemmy down. Stoa: only dX! amount you Deed, foc ooly as loog as you need it. • Stme as few .bamdous .amreriaJs oo-sirc as possible. • Handle .bl:mdoas JDalCriaJs as~ as pcmipJc. • Try 1D mp·chcmk:als in their' origma1 coot1incn.and keep them well labeled. • Tam cmpoyces m proper sungc measures. • lCccp the dcsipa&cd sungc area dean and wen organiu,J. • CcaductroutiDc wcctly impcct.ioos and cbcck foccxtrmal coaosioo of material coorainc%s. llEFERENCES Best Management Pmaiccs foc Jndusuia1 Suxm W~ Pollution Control. Sm Clara Vallcy Ncmpoint Source Pollutioa · Coottol Program. 1992. • _ Sam Wlt/:Z Management for Industrial .Activities: Developing Pollution Prevention Plans and BestMamg=eot Psxtica, USEPA. Iwy 1992.. Wasci-Qoality BestManagcmcntP.racna:s Manual. City o!ScattSc.1989. SC20 Municipal Han~book 4-20 Mardi, 1993 • ·• ACTIVITY: VEHICLE AND EQUIPMENT FUEUNG :-. . • : .. : : -·· ·-. ·: · .• ---~--···;. . . . . . . . .......... -· . . . . . . : • • • ·:. ··-•• ·=:· : . . ~,..;._~---~-: ~ :.J DESCRIPTION Prevent Cue! spills and leaks. and reduce their impacts ro storm water' by using off-Site . facilities. fueling in designated areas only, enclosing or covering stored fuel. impl~ting spill controls. and training employees and subcoottactors. APPROACH • • Use off-site fueling statioQ:S as much~ possi~le.. Fueling vehicles and-equipment outdoors or in areas where fuel may spill/leak onro paved surfaces or into drainage pathways can polluic stom1 water. If you fuel a large number of vehicles or pieces of equipment. consider using an off-site fueling static~ These businesses are better equipped to handle fuel and spills properly. Pcrfam.ing this work off-site can also be ccooomical by eliminating the need for a~ fueling area at your site. • If fueling must occur on-site. use designated 3I'e3S. located away from drainage ~-to pevcnt the nmon of stoon water and the runoff of spills. Objectives ~ Cont3in Wasts Minimin Disturblld Ataas Stabib Disturblld Anas Pro~ Slopu/Channsls Centro/ 511• Pllimoter Control Intimal Erosion Targeted Pollutants 0 S«Jiment • 0 Nutrlttnts Q . Toxic Materials ~ Oil & Gruse 0 Floatable Material$ 0 Other Construction . Wute • Ubly to Hr,• SlgnJllct,nt lmpai:l • Discouriige '"toppin~-o.rr of fuel tanks. . t-________ -~ __________ ..:._;... • Always use secondary containment. such as a dram pan or drop cloth. when fueling to C3tCb spills/leaks. 0 Probabl. Low or Unlcnown Impact • Place a stockpile of spill deanup materials wbac it will be re.adily accessible. • Use adsod>ent .materials on small spills rather than hosing down or burying the spill. Remove the adsorbent ma.teriaJ.s promptly and dispose of properly. • Carry out all Federal and State requirements regarding stationary above ground storage tanks. • Avoid mobile fueling of mobile coosttuction equipment· around the site; rather, ti'anspon the cquip:nent to dc.signar1"11 fueling 3I'C3S. With the exa:ption of tracked equipment such as bulldoz.c:rs and perhaps fOtklifts. most vehlcles should be able to travel to a designated area with little lost time. . • Train employees and subcontractors in proper fueling and deanup procedures. • Fot a quick reference oo disposal alternatives for. specific wastes. see Table 4-4 CA40. Employee/Subcootracta-Training. REQtJlREMENTS· • Costs {Capital. O&M) -All oC the above measures arc low cost. except foc the capital costs of above ground tanks that meet all local environmental. zoning. and f.ue codes. • Maintenance .Keep ample supplies _of spill cleanup marerials on-site. -Inspect fueling areas and storage tanh on a regular schedule.. LThfITA TIONS • Sending vchides/cquipment off-site should be done in conjunction with ESC24 (Stabilized Construction Entrancet Construction Handbook 4-25 Implementation Requiremonts Q Capital Costs 0 O&MCosts g Maintenance Q Training 0 Suitability for Slopu>5" ( e High O Low CA31 1;3e Man Practic ------------------------------------------- --------~ ACTIVITY: VEHICLE AND EQUIPMENT MAINTENANCE Objectives 1----------------------------i~ . Gtaphjc: Na'lhC«aalTexas-COG, 1993 ~ DFSCJUPTION . Prevent 0t reduce tbe discharge of pollutants to slonD water (rpm vehicle and-cquipmcot maimeoanc:c by nmning a '"dry sue". This involves using off-site faciJities. pc:d'onning wooc in designated areas ooly, providing cover foe :materials slorcd outside. checking for leaks and spills. coniammg and cleaning up spills hnm~y. and training employees and subconuactors. APPROACH • Keep vehicles and cqmpncnt clean. don't allow cx~vc build-up of oil aod grease. • • Use off-site repair shops a, much as possible. Maintaining vebicks and equipment outdoors oe in areas wbczc vchlcJc oe equipment .tluids·may spill or leak onto tbe ground can pollute stam war.er. If you rnaintriri a large number of vchiclcs oe pieces of eqoipmcnt. coosider using ao off-site repair shop. 1besc bnsh>es!,es .:vi: better equipped to handle vehicle fluids and spills poperly. Pcrl'orming this wodc off-she QQ 2lso be ccooomical by elimimting:thc need fc:r a separate maintenance area. • If mainlCDance must occur oo-sitc. usc designated areas. located away from dramagc courses. to JRVCDt the runoo of stonn water and the runoff of spills. • Alwajs usc sccoodary cooaaiomcnr., sucb a, a drain pan oe drop cJodJ. to cau::h spills or leaks when remoring or changing fluids. • • • •• ·Place a stockpiJe of spill deanup materials where it will be readily accessible. • Use adsabcnt malcriaJs oo small spills rather dwl hosing down or bmying the spill. Remove the adsorbent matcriaJs promptly and dispose of _popcily. • Rcgu1ady inspect on-site vcbidcs and equipment for leaks. and repair immediately. • Check inruning vehicles and cquipmcn, ('mc:ludiDg delivery tnJdcs. and employee and subcootr3CUlc vchidcs) foe leaking oil and fluids. Do not allow lcaking vchlcles or cquipmc:nt OD-site;. • ScgJcgarc and rccycJc Wastes, such a, greases. used oil Cl' oil filtas. antlfrcczc. cleaning solutioos. automotive baUcrics, hydraulic, and transmission fluids. • Tiain employees and subcontracUXs in proper maintenaDCC and spill cleanup proce dures. • For a quick reference 011 disposal altcmatives for specific wastes. sec Tablc 4.2, CA40. EmployceJSubcoouactcr Training. REQUIREMENTs • Cost, (Capilal. O&M) -All '1 the above arc low cost measures. • Maintenance JCcq, ample supplies of spill deanup materials on-site. • Inspect maintenance areas on a regular schedule. Construction Handbook 4-26 Contain Wast. 11/nimiz. Disturb«! k,n Stabllla Disturb«/ AlNs Prat.ct Slop,s/Channtls Control Sit, Plrim.t,r Control lnt,ma/ Erosion Targeted Pollutants 0 Sediment 0 Nutrient. ·g Toxic J.lllleri•,. ~ 011.1a,.... 0 Floatable Mllterial• 0 Other Construction Wat• • • Ubly lo H,,.,. Slgnllkant Jmpect ·o Probebl.l.Mror lWrnown Impact Implementation Requirements 0 Capita/ Ca..u 0 OlcMCo.t. 0 JWntenanc. ~ TT1linlng O· Suabillty.for Slopn>S" ( e High O Low ·, CA32 Ma PractJc March, 1993 I • ·• A CTJVITY: VEHICLE AND EQUIPMENT MAINTENANCE (Continue) • LIMITATIONS ·• • • Sending vehides/equipment off-sire should be done i~ conjunction with ESC24 (SL'.lbilized Construction Emran~). Outdoor vehicle or equipment mainr.en:mce is a porentially significant source of srorm water pollution. Activities ilia! • can conwminac.e storm water ~elude engine repair and service. particularly changing or replacement of fluids. and outdoor equipment storage and parking (dripping engines). For further information on vehicle or equipment servicing. see CA30~ Vehicle and Equipment Oe:ming. and CA31, V chicle and Equipm_cnt Fueling. Listed below is funhcr information if you must perfonn vehidc oc equipment maintenance on-site. Waste Reduction Parts arc often cle:med using solvents such as trichloroethylene. 1,1,1-trichloroethane. or methylene ch1ocide. Many oC these pans cleaDC%S arc .batmful and must~ disposed of as a hazardous waste. Reducing the: number of solvents µwe.es recycling easier and reduces hazardous waste .managc:mcnt costS. Often. ooe solvent can perfonn a job as well as iwo _ different solvents. Also. if possible. eUroioatc or reduce me amotmt of hazardous materials and wast.c by substituting non-hazardous or Jess hazardous materials. For example, replace chlorinated organic solvents (1,1,1-trichloroctbanc, methylene chloride, etc.) with non-chlorinated solvents. Non-chlorinated solvents like kerosene oc mineral spirits are less toxic and less expensive to dispose of properly. Chcd: list of active ingredients to see whether it contains chlori nated solvents. The '"chlor" term indicates chat the solvent is chlorinated. Also. try substiruting a wire lxush for solvents ro clean pans. BmcJiorWsoosal Separating wastes allows for-easier recycling and may tcduce disposal costs. Keep ha7.ardous and non--bazardous wastes separate. do not mix used oil and solvents. and keep chlorinated solvents (like 1.1.1-trichloroethane) separate from non cbJ_prinated solventS (like kerosene and miDcral spirits). Promptly transfer used fluids to the proper waste or recycling drums. Don't leave full drip pans oc ocher open containers lying around. , Oil filters disposed of in trash C3.DS or dumpstets can leak oil and COPtaroinate srorm water. Place tbe oil filter in a funnel over a waste oil recycling dram to drain excess oil before disposal. Oil filters can also be recycled. Ask your oil supplier oc recycler about recycling oil filters. Do DO( dispose of extra paints and coaungs by dumping liquid ODto me ground or throwing it into dumpsters. Allow coatings to dry or .batden befor: disposal into covered dumpstcis. _ Store CJXked batteries in a non-leaking serondary container. Do rhis with all cracked batteries, even if you think all the acid has drained out. If you drop a battery, treat it as if it is aacked. Put it into the containment area until you arc sure it is not leaking. Do not bury used tires. REFERENCES Best Management Piactices and Erosion Control Manual for Construction Sires; Rood Control Distria of Maricopa County, AZ. ·sepcembcr 1992. · • . Blueprint for a Clean Bay-Construction-Rehlred Industries: Best Management Practices for Storm W~ Pollution Prevention; Santa Clara Valley Noopoint Source Pollution Cootrol Program, 1992. Coastal Noopoint Pollution Control Program: Program Development and Approval Guidance. Worldng Group Working Paper. USEPA April 1992. CA32 Construction Handbook 4 -27 March, 1993 Applications II ACTJ-VITY: OUTDOOR STORAGE OF RAW MATERIALS, PRODUCTS, 1.__ ____ ___:A..:::.N.:.::O:....::B:...:.Y:...•.:...P::..:.;RO:::.:D:..:U:.:C:..:.T.=..S ____ -------t Manufacturing DESCRIPTION : Prevent or reduce the discharge of pollutants to storm water f{om ouufoor material and product sunge areas by enclosing or covering materials. installing secondary contun• • mcnt. and preventing storm water nmoo. APPROACH • Protect materials Crom rainfall. nmon. runoff and wind dispersal: Store material indoors. Cover the storage area with a roof. Cover the material with :i temporary covering made of polyethylene. polypro pylcoe. or hypafon. Minimize stonn water runon by enclosing the area or building.a berm around the area. Use .. doghouse .. (O{' s10rage of liquid containers. • Parldng Jou or other surfaces ne:ir bulk materials swrage nre.is should be swept periodically lo remove debris blown or washed Crom storage area. • Iostall pellet traps at storm water clisclw-ge points where plastic pellets arc loaded and unloaded. • Keep liquids in a dcsigruued area on a paved impervious surface within a secondary containment. • • Keep ouldoor storagc.contaiDCll in good condition. • Use berms and curbing. • Use catcb basin filtration inserts (Chapter 5, TC6, Media Filtration) .REQUIRF!,1ENTS • Costs (Capital. O&M) -Costs should be low except where large arc::is may have to be covered. • Maintenance Berm 'and curbing rcp:iir and patching. ~ Vehicle Maintenance Construction Roadways Waste Containment <1fijiekeeping Pract~ Targeted Constituents • Sediment .o Nutrients • Heavy Metals • Toxic Materials • Floatable Material$ 0 Oxygen Demand• ing Substances • Oil& Grease 0 Bacteria & Viruses • Uic.#y to H-• Slgn/Dcant Impact ·o Probab,. Low or Unknown Impact Implementation Requirements Q Capital Costs 0 O&MCosts 0 Maintenance Q Training LIMITATIONS • • Space limit:llions may preclude storing some matcri:lls indoors. I • High . 0 Law • Some municipillities require that secondary containment arc:is (regnrdlcss of size) be Cooncctcd to the sanituy sewer, prohibiting any hnrd connections to lhc stonn drain. SC 8 • Storage sheds often must meet building and fire ~ requirements. Industrial Handbook .. .,_ Be ··Man Practic March, 1993 ......... i • • ••• • Additional Information -Outdoor Storage of Raw Materials, Products, and By•Products ~w matcrials. by-productS. finished productS. containers. and material scorage are.:i.s exposed to rain and/or runoff can pollute storm war.er. Storm water can become contaminated by a wide range of comaminams when materials wash off or dissolve into wacer or arc .ldded to runoff by spills and leaks. Paved areas should be sloped in a manner that minimize the pooling of water on the site. particularly with materials that may leach pollut3ntS into storm water and/or groundwater. such as compost. logs. and wood chips. A minimum slope of 1.5 percent is recommended. . Curbing should be placed along the perimeter of the area to prevem the runon of unconwninated.stocm waier from adjacent areas as well as runoff of stonn war.er from the stockpile ~ Tbe srorm drainage system should be designed to minimize the use of C31Cb basins in the incerior of the area as they tend ro rapidly fill with manu facturing material. In these cases. consider the use of the catch basin insen rtlrer dcsaibed in Ch:lpter 5. TC6 (Media Ftltration). The area should be sloped ro drain stoon water to the perimeter where it can be colleaed or to internal dtainage alleyways where marerial is not stoekpiled. If the raw material. by-product. or product is a liquid. more infonruuion for outSidc storage of liquids can be found under SC6., Outdoor Container Storage of Liquids. Examnfes: The .. doghouse .. design has been used ro store small liquid contai~ The roof and flooring design ·prevent conb:t with direct rain or runoff. The doghouse bas two solid structural walls and two canvas covered walls. The flooong is wire mesh about second3ry contairunenL The unit has been used successively at Lockheed M"tSSile.and Space Company in Sunnyvale. REFERENCES ~est Management Practices for Industrial.Storm Water Pollution Control. Santa~ Valley Nonpoint Source Pollution Control Progrnm. 1992. Stonn Water Management for Industrial Activities: Developing Pollution Prevention P~ and Best Management Practices:-EPA 832-R-92-006. EPA. 1992. • Water Quality Best Management Practices Manual. City of Seattle. 1989. sea Industrial Handbook 4 • 29 l\farch, 1993 8 MP: ABOVEGROUND TANK LEAK AND SPlt.l CONTROL DFSCRJPTION . PJCYaJC oen:dua: the discbargc oCpoilucants to srm water from aboYcgrouDd storage lmb by iJJstllftnJ safeguards agaimt acddc:Dtal releases, iDualJing SCC01.daty coatriumc:nt. c:oodocting rczu,Jar impc:ctions. and traimng emp.lo)'ecs in $tmdatd oper.umg proc:afutes and spill dcannp t.cdmiques. • APPROACH • IDlcp2sc efforts with cxisuug aboYcground petroleum sungc tank programs through the .local Fire Dcpanmcat and Health Depanmcut; and~ aod business emaienc7 lesp,GSC plans Jbrougb lbc Chy. County, oe Fire District. • Use engineering saf'cg~ to n:duc:c tbe cbancc for spills. • Pohm rqubrrnaintcNDcc • F« a qmct rderc:Dce on disposal altemativcs foc specific ~ sec Table 4.1, SCSO. IDepl Dumping Conuol. REQUIREMENTS • Colt Consideadoas . . -wm vary dq,c:txJing oa tbe size of lbc facility and the neccmiy coauols. 11-,-~ ·• ~-- -State rcgu1atiCXlS exist foe fxilitics witb a su:n.gc capacity oC 10;000_ ga1Joas oc more oC petroleum to IRPlfC a Spill Prcvenam· Coouol and .CouDtcrmcasurc Pm {SPCC) P!an (Health & Safety Codc Olapu:r6..67). -Stale regu1atiom also exist foe stcngc of hazardous materials (Health & Sa!ety • Code Chapter 6.95), including lbc pcpmatioa of area and business plans foe cmcrgaq rcspome to the rcleases c,c tbreatcned releases. -Comidcr rcqmring smaller secoodary cooDrinrnent w:cas (Jess tlrm 200 sq. .ft.) 1D be cormeaed to tbc sanmry sewer, pt>biliting any hard CODDCCtioDs 10 lbc siam dam. · • Adminishtivc / Staffing • 'Ibis BMP bas no~ administrative or mffing requirements. • Eqoip,x i¢Dl • .ICtep ample supplies d spill cootrol and de.aoup ma&crials ,t rnaoidpaJ facilities, • Updarc your spill cbnup maSCriaJs as clrmgcs occur iu the typcS of cbcrnic:als ucrcdoo-sitc. • Tammg • Employees should be well-tramcd in spill prcvcntioo and cleanup. POBUCEDUCATION /PARTICIPATION • Ernp!oyccs shcwd be educalcd about aboYcgmmd suxagc tank rcquimnents. • LlMITATIONS • Fer larger spills. a pivate spill cleanup company or Hazmat team may ~ nea:ssary. Municipal Hand~k 4 -41 I Program EJemema Targe~ Constituents QS«11mt,nt 0 Nutri«tt, 0 HNI'}'~ • Ton:~ 0 Flolbble ""'--- 0 OzygMfNnMd,. Ing~ • 011.tCirNH 0 s.c.r.e1V1n1Ns • =•"-- 0 ~-peot ,,.,.,,, .... ,.,,. .. tw:nown,,,.,,_, Implementation Requir.menta 0 Caplb,/ eom Q OIJleo.t. 0 R~ltttory- 0 Stllfflng • Training 0 Admln,.tladn • High 0 Low I SC41 Matth.1993 • • Additional Information -Aboveground Tank Lsak and SplJJ Control . . -~ta! releases of materials from aboveground liquid storage tanks piesent the potential for cootaminating Stoilll ~ with maoy different pollutants. Materials spilled. leaked. or lost from tani:s may accurnulare in soils or on impervi- ous surfaces and be c.uried away by stomi water nmofl • The mast commoo causes of un.iou:utiooal releases arc: • . IosulJarioo problems. • Failme oC piping sysu:ms (pipes. pomps, flanges, couplings. hoses. and valves). • ExtcmaJ conosioo and stxwmal f.aiJure. • Spills and ovcmlls due 10 op:at.or am-. and • I.eats during pumping of liquids or gases from truck or I3iI car to a swragc tmk or vice versa. Stoage of re.active. ignmble. or fJarnmabZ..: liquids should comply with the Unifocm FJrC Code and the National Electric Code. Practices lisicd below should be employed ro enb~ d.>c code rcquin:meots. • Taub sbouJd be pac:al ma designated area. • Tanks JOCl!Cd in areas where fircmns arc disdmgcd should be enapsu1ated in coocrctc or the equivalent. • Designated ucas should be paved with Portland c:rmait coocrcte. free of cracks and gaps. and impcnious in order to contain .leaks and spills. • Uqmd UVo/'"ab ~ be stored in UL~ double walled tmks oc suaounded by a curb er <like to provide the volume ro contain 10 percent of me volume ol all of the C:OOWDa$ or 110 pc:n=t of the volume of the largest cooWDCT. whicbcYcr is~- • The area inside the cmb sb®Jd slope 10 a drain. -F« med oil er dangaous waste. a dc:ad-CJd sump ·sbooJd be iDstaJtcd in the dtaiD. -All other liquids .should bf, drained to lbe saDitaiy sewer if rnrilable. • nc dmn must have a positive c:oottol such as a lock. ~ or plug to JX'CYCDt rclcasc of cootarninatcd liquids. ~-Acommlau:d suxm warcr in pcuolcum stmgc area3 shouJd be passed through an oil/water scpaawr. -;~ cmp)oyca can tcduc:e human arors that lead ao accidental releases-~ spills. The cmpJoyce shouJd have the . toou aod kDowJcdgc IP immediately begin deaning op a spill if ooc shooJd occur. Employees sbouk1 be fmritiar with / tbc Spill PrcvcntiOG Control and Countc:mcasurc: P!Jm. The plan should iDdndc (see the Health &. Safety Code for I specific ~ahement:s): • .. Dcsaiptioa of the facility, owner and address. acimties ~ d>cmjcais ~ I • Facility map. I . Nod6arioa aod evacuation I.-ocedtt~ I • Cleaoup iDstnJctioos, and • • ~ olkey spill l'C$p0ll5C petSODDCl. EmpJoyces rcsponsil>)c for aboveground sunge tanks and liquid traosfas should be thoroughly rammar with the plan and the plan should be readily available. Opmucc emxs can be JXCVCDted by using C2lginec:ring safeguards and thus reducing accidental releases of pollutants. Safcgwsrds include:: • Overflow proccctioa dcYk:cs oa tank sysu:ms to wam the opemux-to auiomatically shutdown tnmsferpumps when the tmkreacbcs full apac: ity, • Protective gumds (bollards) aroaod tanb and piping to prevent vchlc1e or forxlift damage. and • Clearly tagginz or ~g an valves to reduce hmmn em:r. SC41 Municipal H:andbook: 4 -42 M~l993 J-Main-. -,C113DC--,, A_is _:-~-iti_:-:-~-~--~-~ 1 _f~-::-:-t-:-:-~- 00 _=-~-egro ____ u_:_T_:-:-~-,ccn-.-:1-and:-Sp __ ._w_eo_ntr_o_l ----'1-- • Check for extcrml cmosioa and suuctural .failw'C. • , • Check for spills and overfills due ID ~ error. • Check for fa;ilurc ol piping syscem (pipes. pumps: flanga. -coupling. hoses. and valves), • Check for leaks or spills during pumping of liquids or gases from truck or rail car 10 a suxagc facility or vice vasa. • Y-asually iDspea new trot or contaioc:r installatm foe loose fittings. poor welding, and improper or poorly. fined pskcn.aDd • Inspect tank !ouodadom., cocmectioas. coatings. and tmt walls and piping S)'StCID. Look foe c:arosioo. leaks. mas. smccbcs. and ocher pbysial damage that may wcatcn the rank or coorainer system. • During the wet seasoa, acx:umuJah'd ~1e1m water should be released f'rcqucudy. • Pmx1ically, bucgrity testing should be coodoctcd by a qualified professionat REFERENCFS Wa,a Quality Best MamgcmcDt Pr3ctia:s Manual. City of Seattle. 1989. Stam Wata M.IDagemeDt for IDdusuial Activities: Developing Pollution Prcventioo Plans.and Bcsr Management Praaices. USEPA. July 1992. • ,. Best.Mamgc:mcnt Prac:rices for Industrial·Sr.orm Wa= Pollutioo CQotroL Santa Clara Valley Naipoint Source Polludoa Camol Program, 1992. • Stamwaacr Management Manual for tbc Puget Sound Basin (The Tccbnk:al Manual): Volume IV • Uman Laad Use BMPs.Wasbingt011Stacc.DeparancutdEcoJogy1 1992. SC41 MunJcipaJ Handbook Marth, 1993. 8 Mp: CATCH BASIN CLEANING DESClllPI1ON Mainmi:J cw:b basins and storm wau:r mJets oo a regular basis ro remove polllll2Dts. reduce high pollutant coacenttatior1s during me first .tlush o{ suxms. ('l'C\'CDt doging of the . do~ cam:y.mce ~ aod restac.dle C3tCh basins' $C'fflfflffll IJ3pping capadry. A catd1 ba5in is distinguisbed from a storm. water inlet by having ai its base a sedfment sump designed to cw:b and ret3i11 safimmts below the ovcdlow point. This fact sheet focuses on the deaning of acrnraulared sediments from cau:b basins. APPROACH • • • • ~y enforce anti-littering and illegal dumping ordinances Catch basins sbouJd be cleaned regularly to reduce the pos.sibiliq of serli1JlC1lt and •• pollutant loading from the flushing effect of m wau:r inflow. Prloriti:zr, rnainu:nancc to c1ean cudJ basins and inlets in areas wirh tbe hi~ pollut- ~ ~~ -' Kecp.ao:urat.e operatioa logs to r:rad: program. REQUIREM:EN'IS Program Eem•nts Nttw OtN•lopment Ruid.ntial Comm.,eu,J Aaivitiu lndu.trilll .Activit]q Targeted Constitu•nu· • S«H,:n.nr 0 Niitri.nu • Heavy IMta,_ 0 Toxic M11t•ru,I# • • Floatllbhl 'MlltMIIJ.. • 0~0.m.nd ingS~ • OH&,G,.... 0 ~ ~ Y1nlaes • • • • • Ukaly-,~ Slgnhbnt Jmpect CostConsidemioos O ~ Lo-wor -An~ c:atdl basin cleaning program could requin: a~gnic1C3Dt capital and l.!:==u,:::.,,::::"°=••::::' l:::m::pact=:=~I O&M budget. A careful study of cfeaning drc:ctivcncss should be UDdcrtam • before iDacascd cle3ning is impfanmrat. Rqu1atioos -1bac arc DO regulatay rcquhemeuts foe mis BMP. Municipal QXJcs should . include scctiom probibidnJ tbc disposal of soil. debris, refuse. haz3rdous wasu:. and ocbc:r pollotmts. iaro me m main sysirm. aoo JrObiblting littering. Administtathc / Stiffing -• Two-pcisoo teams may be required to clean cw:h basins with vacter ttUd::s. -Amm.gcmc:ocs mast be made for proper msposal of collect.ed wastes. Equipment -Except fer suw.t mmrnmritiM witb relatively few c:arch basins rhat may be deaned manually. most municipalities will require merltanir:al dC3DCO soch as edllCt00. vacunrns. er boc:xct Joadcn. Taming • Crews must be ttaiDed in propernwntenana:. indudiag record uq,mg and disposal ' PUBUC EDUCATION/PARTICIPATION • Educate comraaor:s (a:mcnr. masonry, painting) and utility employ~ (telepboae. cable. gas and elearic) aboot proper waste (solid and liquid) disposal LlMITATIONS • There are no major limitations to this be3t lll3nagcment ~ ·-· -Municipal Handbook: 4-67 Implementation Requirements • C.aJC:C.U • OIJICom OR~~ • Q g • Stltlffng Training Adminmrtlt:lve High 0 Law SC71 Be Ma Practl Mucli.1993 Additional lnf ormati.on -catch Basin Cleaning Regular maintcnana: of public and ~Vate caJCb basins-and inlets is ncccssary to ensure their proper functioning. Clogged catcb basins ~ not aily_ uscJc:ss but may aa as a source of safimcn~ and pollutants. In genera!. the keys to effective catd1 b:asim.arc: • At least annual inspections. Mumcipal staff should inspect public.and private facilities w ensure compliance wirb • the following: • • -!rnrncdiarc repair of any deterioration tbreatcnmg structural integrity. -Ocaoing before the sump ls 40$ Cull. Catch basins should be cleaned as frequently as oecdcd w meet this siandard. -Sltndling o! catdl basins and inlets (see SC30. Sloon Drain SyslCDl Signs). • Clean cw::h basins in high pollutant load areas just before Jbc·wct season tor~ sediments and debris accumu- la&cd duriD& me SUJDfflC't', • • ICecp acanm lop ol. lbe nODlbcr_cf calda basin~ drucd • Record~ •mouar ol wasi.e a>llcaed. • ComidcrimpJcmendng employee dcpuizatiop and spill track:ing~ in SC50. Dlcpl Dumping CODttOI. .in conjunctioll with mis BMP ID facilitate a,1urol of illegal dumping. • . Publk educ:alioa· sbouJd be impl~ted iD conjunaica with tbc public cducadoa effort in SC.SO. Illegal Dumping Cootrol. 10 raise awarcncss oC tbc prob~ Infomwioa in the Coosuuaica lbndboot regarding waste man.agcmcm (BMPs CA20-CA24) may be used to dcYcJop a program for coouactors. REFEREN~ Best MaDagcmcnt Practices foe Storm Drainage Facilities (Draft). MaiotcnaDCC Subrornrnitttt, ,A Jameda County Urban .Runolf Clean Wala Proiram. ~ Proctt:ting Waser Quality in Uibaa fFas: Best Management Practices for Minoesota. Minnesoca Pollution Control -Agezq. 1989. ., · ' StormWaat:t Managc:mcnt Mapua.l foe tbc Puget Somxl Basin (1be 'tedmkal Manual): Volume IV -Urban Land Use BMPs. Wasbingt011 State Dcpaa anc:ut of Eco.logy. 1992. S~ Ocaning ~ American Public Works Association. 1978. SC71 fl Municipal Handbook 4-68 M.-ch,1993 ' • BMP: 'IEGETATION CONTROLS Gt8+)Nc:: Ncrtn c..ntr-a, Texas COO. 1~ . . . . .. . . ~ .. ~ON VegctWOO comrol r:ypically involves a c:ombinadoa of chemical (herlricidc) appllcatioa and mecbankal methods. µechaoial vcgcw:ioo c.oolrol ~ arc discu:sscd herein. vcgcwioa cooaol by berbicides arc addressed in BMP-SCIO ol this chapter. Medlanical vcgcwioa cooaol includes Jeavmg existing vegetation. cuµmg Jess bcqucndy. haodaJtting. planting low mainrenancc vegetatioo. colJccting and propa.1y disposing of clippings and cuttinp,-aod ~,caring employees and the public. APPROACH • ArcasolC.oocan Steep slopes. . -Ve,cwed dajmgr-dwmds.. Crccb." -Areas adjacent to catch basins. -~ basim. • Areas Exanpt -Flat« rewivdy flat vegetltcd arr.as.. -MQS not adjacent to drainage SU1JCtUn:S. -ArC3Ssacmcd from dl3inage stnJCtllrC$ by vcgcWioo. :REQUIREMENTS • Cost~tioas -Possible minor cost impact d upgrading cal3in mowing equipment f« bagging. -Possible cost impact f« additicm.1 laborca involved in band cutting and pidjng up·clippings. • Reguwiom -l.oal murridpal !IJlli-domping ordinancci • AduuDislram'Cl'Staffing • -Possible need fee additiooal labor to hand cut and pick up clippings from areas ~ mccbaak:al cuttiDg and coUcctioo is not pxticable. Program EJemenu ~Dw•lop~ ~ C4mmerc:ia/ Actlvitiu wtmllActMtlu icipa/ FIICilit. lllt,g.J Oilch•rgu Targeted Cormltuents • s.dln:w,t • NutrlMt. 0 HMYyM.tJlltl 0 • Toxic M1,t-,.1t, • Flolabi. Mat.,,.. • Oxyg,,n DIHr>M,a. lngS~ Q OU.I~ 0 ~ A YTru.a. • IJlwr•H.w . !Jlgnlfloent Jmp,,o:t 0 ProlMIH. Low or /fflfl«lt Implementation ~ulr.ments 0 C11p1u,1 eom 0 OIJICom 0 ~-«!11 . 0 Sflllflng • Tf'lllnlng 0 Admln,.batJ.,.. -Tam bndsapc coattactxxs aod mmudpal employees re. vegcwion coouoJs. f e High O Law PUBUC EDUCATION/PARTICIPATION • Promoct: YOluntetrserviccs toacatelittercollcctioo groups (suc:basAdopt-a-StrC3Ul). SC72 - • Fducatc public regarding anti-dumping practica (fold iD1o existing tioosebold 1----------1 b3zardous ~ ~). aod impact of erosioD from DCW c:oosmx:tioa. Ll1rfiTATIONS • Docs DO<~ problems associated wicb habicidc use. Municipal Handbook 4-69 Be Man Practfc March, 1993 Additional Information -Vegetation comro1s MecbaDical.coouol of vc_gctapOQ_indudes mowing. -busb-bogg,ing··. and handcuwng. L.lrgc scale moWUJg is cypicaJly done by tracta-cypc mowers similar to farm_ machinery. -Bush-bogging .. usually refers to trae10r mounted mowing equipment with hydr:wJica.lly mounttd cutting machinery. On smaller areas. la~ traaOC'S ~ pusb_mower.s may be used. In areas th.au.re iaacce«ibJc by madrini:ry. such as steep grades and rocky caram. band cucang usmg gas powered weed trimmm and scythes may be used. Clippings and cuttings arc the primary ~ produced by mowing and trimming. Clippings and cuttings are a!inost C%clusivdy lea! and woody mau:ria1s. In some cases. litter may be mrc:munglcd with me ~ppings along public rigbt-of ways. 1bc objective of this BMP is .to minimize r.raaspona.tion of clippings and cuttings into me siorm wau:r conveyance System. Oippmgs/cuumgs ~ into tbc SD'JD water sysicm and iteeivingsucarns cm dqrade warcr quality in several ways. SuspcOOC'I solids will iDcmasc causm1 turbidity problems. Since most of the coosaimcnts arc cxpmc. the biological oxyzen demand -.ill iDaC&1C c:ausias a lowering of the aV2ibblc oxygen to animal life.. ~ aim where litter and otbct i solid was&c poiluticG exists. toxic rn3laia1s rnay ~ released into rec:emng sueams with a resulting degradation o( water quality." • A rclaled problem exists widl tbc illegal dumping oC clippings/cuttings iD CX' near dr.aimge tadJides. Oft=. Landscapm aDd priva&e maiorenazv:e people will diso;wer that dippings/cuttings. can easily be disposed of by dumping tbezn down a nearby rmnc CX' ca tbe sJopc of a~ CX' daimg~ cham>ef ThiS.pracua: inuodua:s a large quantity of decaying OCJIDic matter into tbc saam Water coUeaioo systc::m tha1 is subsequently cairlcd to nuiving sueams during tbc next sioan. . Meawrcs to improve tbe di.sposiaoa of clippinp/cuttings arc simple aod inexpensive.. For tbe most pin. tbc soluuoo to this problem involves bcbaviCX" modification through ednc:aooo. Awareness of the pt>blcm is the fiDt stq> IDward lbe soludca. FU'Sdy and fer new devdopalCDlS iD paniaJlar. tbe easiest and least.expensive measure is 10 .leaYc me emting vegctatioa bl place. Native vegdlaOQ typically regimes much less m;rin,en;mc,c thaD introduced vegcwioa. Sccmdly, consider mowing CX' trimming ~-ICJ('tmon, beth naiive and inuodl>ccd. Jess frcqucntly, tbcicby· gc:ncrating less W&$IC. Thirdly, if iotroduccd YCgesadoa i, neccs.ury. c:oosidcr planting low rnaiotemrx:c ~ and shrubs. ADo(ber advantage ro tbcse ~ is a:midc:r:abJc war sa'rinp. 1 0Dcc this vcgcmivc .waste.is ga,c1 MM cbc maid c:coccin is to avoid trmspOttof clippings/cuttings to rcccmng Water ! bodies. It is neceswy ·10 pick up ml properly dispose of cilppings/amings 011 tbe slopes aod·boarm of damage facili. I : tics. ~ing sum Willet ~oa faciidc:s • In ldditioa, tbc prcscncc of c:lippings/cuttings in aodaroond arcb basins sbouJd be aYtlidcd by eimcrusing baging cquipmcnc O" manually pictmi tbe mar.crial up. CDppmp/ rnainp Oil flat smaccs ire i=cnJly D0l llansponcd by Slam water nmotrunlc:ss lbc event is paniad.ady intcmc. Therdore. it is DOI 13CC:r ssary 10 pick up or bag clippinp/c:uaings oa flat ct nearly flat smfaccs. Municipal opcmixs sbouJd be ttained to me iood judgcmcut iJt detC11Drn":'& wbetbcr ~gs/cuttings sbould be c:oUcded cc Jett in place. Mowing sbould be pcdamod ..t opmml.timc:s. Mowin& should not be penamed if significam rain a,cms arc predicted. :t-fuk:biog ~ ma:, be m:anmendcd fee ccmin . .-cas. Mulcbiag rnowc::s should be mcangcd fer bomeowDc:tS in flat areas. Mukhin1 mowm bavc lhc added benefit of Rducing tbe fcnilizer d::maDd through rcme ofcxpnic ~ Otbcr' techniques may be cmpk>yed io minimize 111owing such as scleaive vegetative pfznting using Jow rnainrtnanc:c grmcs aad shrubs. SC72 Municipal Handbook M~l.993 • ···• Additional Information -VegetatJon controts Municipal anti-<iumping cxdill3Jlces should be rnao.cd ex remforced <if necessary, so th.at pnva.te dumpmg of vegera.uve debris is not allowed. It is important tbat rbese otdinancr:s be clear and eofccceablc. Education and public participation arc imponaut elements in control of this unaccepcable practice. Infcxmation regarding this subject should be mcorpocau:d into other~ environmental educatioo f"OgtamS such as tbe hoosebofd haz..zroous wasfC c:ducatioo program and pesticide cduc:ation etf<XtS. Composting is one of the better disposal altemadves if locally available. Most municipalities either have or are planning yard waste composting facilities as a ll1C3DS of ICducing tbe amount of wasrc going to lbc landfill Lawn dippings from municipal rnaimenancc programs as well as prim.c ~ would probably be compatible with most composting facilities. SC72 Municipal Handbook 4-11 M~I993 BM p: DETENTION/INRL lRA TION DEVICE YAlNTENANCE DESClUPl'ION Propctmaiurcmnce'1Dd-silWioo 1emonl is rcquucd011 boc.b a routine and coacahc basis to prrmocc effcdive suxm water polhwmt removal' effideocics foe wet/dry detcntioll pood aod mfiltradoa dcvic:es. • APPROACH • Rc:movc silt a!tt:r sufficient acx·urrmbtioo. • Perioclica11y dean acamudascd sedirn~t and silt out ol prc-trc31mCDt inlds. • Iilfiltr.arioa device silt removal should occur wbc:n the iDfilttalioa I31C drops below 112 iDda per hour. • Removal ot accm:nularcd paper. tr:asb. and debris sbouJd occur every six (6) months cc as DCCdcd 10 prevent doumi oC camol devices. -, • • Vcp:WlOD growth sbou1d not be allowed to exacd 18 mcbcs in height. • Mow the slopes pcrlodk:ally 2Dd dJcck foe doggmg. c:rosica aod ttec J1l)Wth oa the cmbaokrncnt. • Comaive maiJ'itcnancc may require morc ·frcqmlt attention (as .rcquin:d). REQUIREMENTS • Cost Considcadoos • Frcquc:nt sediment removal cm be 1aboc inrcmive and costly. However. properly desizned poods allow foe easy. 1c:tUOt.d of accumula!CC sc:rlimc:nu at rclacivcly miucccosr. • Cost otwm marcrial foe ~t and disposal • Administr.atr,etaffiog -Two,.pcaca reams may be Deeded fer routiDe silttcmOVal and CXClY2DOQ. -Prog:cam .managa needed ID tt3d' maiorc:nance acuvmes and provide field amuanc:c. -Staff' r.cam DCCdcd foe c:oa~ rnaiotcnano: activities. • Rcgu1atioos -Prmii~ may be rcquized by Corps or l:Pgincets. F"ish & W"ildli!c oc Swe Fish & Pr:ogram EJiemenu Hew 0.V•lopfT>llnt Ruidenti•I Commercial ktivitiu lndu.;rial ActivitS.. Gii!nic~oal F«:ilit"'i.j;:, 1/~/D~argu Targeted Constituents • S«Jlment 0 Nutrieni. • H..vy AA.ta/$ 0 Toxic M«•n•J. Q. FJo.uib/e Mat«ia,_ • O:cyg«, 0.mand- ing Subata~ 0 011,IGrN.e • Sact.ria A VTruu. • UblytoH-. Slp,ilbnt Jmpect 0 Probable Low or lhb,o.,. /trtpc:t lmpl-.nentation Requlr.ments Q Cllpltal Com Q Ot.J/Com 0 Regu'-toty Q St,,fffng 0 Training Game. • • .&}uipmco, 1 • High o Lo• • Vehicles. dump auc:b, bulldoitn. trac~ cn::avarcrs. mowers. weed trim-SC7S men, siddts macbcleS,. ~r.akcs. and pcr,omlpo<:aivc eqmpmenl (PPE). {&oU]es, dustrnms. COYCCllls. boots. gloves). ,__ _ __,,,,,,, ....... ___ ti • T.t2imn1 • Apprq.cia&G cxcmtioa and .mainrcnaocc proc:durcs. Proper w~ dispc,sa1 pocedutes. • M~pal Handbook Be Man Practfc March.1993 • • ( BM P: DETEHTION/INFJL TRA TION DEVICE MAJNTENANCE (Continue} LIC EDUCATION/PARTICIPATION • Crcat.c a public cduc3tioo C3lllpaign t0 explain the function of wer/dry detention poodfmfiltratioo devi~ and cbeir opc:ratiOtlal requiremen~ for proper effectiveness • • Eocourage tbc public ro repcn wci/dry detention poodftnfil:rarion devi~ oecding mainct:nance LIMITATIONS • Wet detention pond dredging C3ll produc.e slurried waste chat often exceeds the requiremenu of many rand.fills • Frequent sediment removal is labor and cost incensivc SC75 M unicipaf H:andbook 4 -79 M2rch.1993 Additional Information -Oetentiorv1ntiltration Device Maintenanca Marnu,,aocc: Proper mainr.enance of detentioa pood and infiltration device systcmS is a source conuoJ proccdwc necessary ro ensure 1 cff'eaivc st0rm waia pollutant removal effidc:ncy. Routine and coacaivc maiotrnanr.e needs s.bould be monirored afu::r su,rms for~ funaiOll oC wet ponds. extended detc:ntioo basins, and infllttatioo device sauctutes.. Proper mainte nance ol tbesc suucmrcs requires periodic silt/sediment and ttash dems removal. as well as timely vegetation· conuoL DcscmioD ba.1in silt removal should occurwbcn tbc aa:umulated dcpdl.ex.ceeds six (6) inches on average in basins without .sediment trapS. In basins widJ .sediment lr3pS. silt removal should occur when accumulation exceeds 'four ( 4) iDcbes. • More frequent sediment removal is rea::mmcD;ded. especially in areas wbcrc roadway drainage povides a significant nmoff CX'ADpOOCDL High acannulatioa l2leS oC heavy metal coor:aminants (lead. zinc. copper) have been identified in these BMP SU'UCtU.ICS adjacent lO bigh U3ffic areas. In crder to ~~.simatiom o( hazardous Waste di$pOS3l. sediment dn:dging ·and excavarioa sbouJd be given frequent ~ority. ~tenancc crews may require access vcbk:Jcs dump ttucb." bulldozers. aod drcdging/cxc:avatioo equipment. Manual use eqwpmcnr (such as rakes. shovels. sk:ldcs, macbcu:s) may suffice (or maintenance of dry dctcntioo. poods and . imiJUadal device system. Sta.fflng will icquirc a minimum of two (2) pcrsoo acws for health and safety reasons and eff'caivc suuaual BMP maintenance .. A program manager should ovcrscc 0pCQDODS either in tbc field or be readily ac:cessibJe ·roe providmg procedural advice or <lircctioa. Foe coacctive m3iotrnancc ~des. a. coadDgcnt team of field ' staff sbou1d be ready ro mobilize fcx remedial actioa. A public aw~c:ncss ~p foe educating tbc CX)fflmtmity of the opc:radooal and maiJueaancc zequin:mcnts of tbcsc BMP S1roames for pollutant removal cffectivcnc:ss would assist in the monitoring of dJcsc sys&ems. A community ~ omnbcr for tbc reporting oC strucmrcs -public and priYarc-in need of maintrnancc would bclp to provide corrective mammancc as required. REFERENCES Florida DcveJopmcnt Manual: A Guide to Sound Land and Wala Mauagc:rncnr. Storm water and Etosioa and ~imcnt Coauol BMPs for Developing Arcz. floridaDepanmcnt ofEnviroomental Rcgulalioo, 1988. ~viram>cntal Criteria Manual. Desip Guidd.incs for Warrr Quality CoouoL C1ty of Austin. Texas. 1989. SC75 M11nidpal Hand.book 4-80 Marcla.1993 BM p: STORM CHANNEUCREEK MAINTENANCE DESCJUPTION. • • • -· Rcdua: poUucmt levels in srorm water by regubrly rrmoving illegally.Jumped items and mauna1 from ssmn mama~ dmmch and accks.. Modify cbau>ef ~ 10 enhaoo:: pollutant removal and/a' hydr:mlic capacity. _ • APPROACH • Ideotifi~ of illegal dumping bot spoc:s; icgular ~oo and clean up ol bot spolS and Otha m damage areas wbc:rc iliep.l dumping aod disposal ocam. • Postins .. No Lincring" signs widl a pbooe nrmbcr foe reporting a dumping in-progress. • Adopdoa md enfoo:emcnr of subsantial penalties foe illep1 dumping and disposal. • Modifi.c2doll oC stoa:o cbaoncf dlar3ctaistics to imprcm'! cbaonel bydr.mlics. to ~ poll~ removals. and 10 cnbaoce c:banocllacck aestbctic and habitat value. • Maioremncc cl acanre logs 10 CY3luaae materials trmovcd and improvcmenu made. REQUIREMENTS. • Cost Comidc:r3rloos fmcbas.: aDf:I iustaUarioo of signs. Cost of vcbidc(s) to haul illegally-disposed iu:ms and marerlal 10 landfills. Program Element.a ~ R .. identi•I Col'Tlt'MrcW Activ;tia lndwtriM ActivitJu Targeted ConatJtuents • s.dlment 0 NutriMtl •· H..vy~ 0 Toxic M«Miall • F/om,bJe ltllll---• Oxygen Den.nd- Ing~ • on•ar... 0 ~AV1mu. -R=taloCbeavycquipmenttorcmovclargailcl;ns(e.g..Cai"bodiie3)fromchannek.l-======:::=:Jl -Pmchasc ol Jaodffl1 ~ to dispose of illeplly-dumpcd items and matma1. -. Capital aoo mablrcmnc:e oom roe cbaone1 matificariom . ~ . -Adopdoo of submoml rcmld.cs fcx illepl dumping and disposal. • Admiu!smuioa/Stlffing -Largcrm1micipalicics should COOJJDit u le3st ooc full-time staff pcrsoo: smaller munic:ip:almcs at k.ast ooe part-time stiff pasoa. Additional ~ as-occded. • Equipment and MareriaJs (sec disamioo 2bovc). • T.rammg -Oxmd rnaintenmcc and DSC of heavy eqmpment. -Idcmifiatica mrl bandting oChazardous ~ PUBUC EDUCATION/PAR'IlClPATION • Fdncatioo oa the need for proper disposal of refuse. • Nocificuioa o(penaJJjes for illegal dumpiDg/disposaL Ll?MrATIONS • Clean-up ac:zm~ may create a slight distmb:mce for local aquatic spccie3. • A.a:ess to iicms and ma1Crial oo {Xivate popctty may be limbed • Tradc-olfs may exist bctwce,, dlamel hydraulics and water quality/riparian habitat. • Womtipublic safety may be at risk in crime-ridden oc bomcless-~ areas. • If SUX1Il c;h;mncls or basins are recogniz.ed as wedaods. many activities. induding maintcnaocc. may be subject ro rcgulatioo. Municipal lbndbook 4-81 lmpMCMntatton ~uJrNnents 0 c.pla/Coda Q Old/ea.ts Q R~Jatory Q Stl!ltlng • Training Q Admlnlabatirw • High O Low SC76 Man Practic M~1993 Additional Information -Storm Channel/Creek Maintenance Q:an-gp Aqjyjrie1 . Ald>ough illegally dumped iteo;lS have~ bc:cn quantified in terms of their cootnbuuon to s~ wau:r runoff pollution. the. pocential exists for signifJcaot reductions in runoff metals loadings as a result of cocnprcbens1ve storm channel and acct maintenance. .Potentially significant sources of toxic pollutants in siorm cbaonels and aeeks may include rbc following: . • Dr bodies and aur.omotivc scrap. • Drbla.erics. • TU"CS. • }{azardous ma,.eria.ls/was,e. • Various mctalJie ircms (sboppin& cam._fumimre. appfiaoccs, etc.). • Ammal wzic. and • Wastes from homeless people coampmcnts. In addidoo to tbc obvious benefit of reducing pollutants in suxm wat.cr nmott an equally impoltant benefit of cbaoncV · Cleek maintenance ~ me dramatic acslbctic impovc:ment achieved by removing all illeplly-dumpcd wasies from a giveu . sucu:h ol a S01J1 channel or erect. Use ol sucb areas fix' illegal dumping acatcs ali eye,a-e and reflects pocdy oa a community that migbt OCbcnri,c be matmg a coascientioos effort 10 improve the cnviromDcDL Comequcndy, storm chmDc1/crcU mama~ cffons i.bolaJd not focus solely oo removing those hrms JcDown ro pmc a tbreal 10 waicr quality. InS&Cad tbc cffoct sbouJd be direacd toward all illcplly dumped maicrials. including commai household lr2Sh. litles'. and D0IHDCWlic arJd/ot iDcit marcriaJs of all kinds. In this way, warcr quality imp"ovcmcm and significant acstberic cnbancc menc an botb ~ actucvcd. Oam:t Mcxfjficarion/Im1nrn1::mcnr Url,ani_radoa. p,aniaJlady ~ clcmng and c:omuuctial. tends ro disrupt strezn ~ by tempoarily intensifying scdimenr yield 10 sttcamS. In addidoa 10 tbc cleanup F.actices dcsaibed ~ impkmentadoa of me crosioa and sediment c:eotrcl BMPs.prcscntcd in.the. Coosaructiol1 Handbook !=-Ill also sign!6cantly rcduc:e tbc effects ol in+mtizatioa oasuams. It sbouJd be noccd lbal any pCl'30D. govcmmcDt agency. 0t public utility p:oposiDg an activity that will c:baDgc tbc ~ {c:mpbasis added) mite of any river. sum. or lake in Dlifooua. must cmet ioto a stteam. 0t Lake Alu:ntial Agimnent .. wida tbc Dcpanmcnt of F'tsh and Game. The dcvdopc::r-appliaot sbouJd also c:oar:act local govc 11n nts (city. county. special disarias). ocbcr staac agencies (SWRCB. RWQCB. Dcpuu:Dent of Forc:say. DcpuuDcnt of Wala~). and Fc(b,al Corps otEnpnccn and USFWS. Bow Mimranmc Flow urmagemenr. bas bcca ooe of tbc p,:iocipal mociva!ious for designing utbaD sam corridors in tbe pasr. Such needs may or may not b! romptible with the s~ water ~tr. goals _in the sucam coaidcr. · Downsueam flood peaks can be supprmcd by reducing tbrougb.ftow velocity. This can be acamplisbcd by reducing Jndicnt wilb grade camol suuames 0t macming roughness with bouldcn. dcmc ,egctation. or complex banks foons. • .Rtducing velocity coacspcmingly inaases flood height. so all such mca,ures ba,e a nannl assodalioo witb ffoodplaiu opm space. Flood de-tadom laterally ldjacm 10 tbe sum cm be lowered by mc:rcasiDg tbrougb.f]ow vdocity. However. ioc:rcasjn1 vcJoc:ity inc::reascs flooding downstteam and inbemltly C0Dflias widt channel stability and ·bumaa salc:ty. Wbcrc lOpOpaphy pcrmits. lDOCbcr way to Jowcr flood cleYatioo is 10 lower tbe lcvcJ of the floodway wilh drop sttuc:tmcs inao a large but subtly exca"3led bowl wbcrc flood flows arc allowed to sprC3d out. ,, SC76 MIUlkipaJ Handbook 4 -8l Mardi, 1993 • ... -. ':•' BMP: SCHEDULING DESCRJPTION Sequencing me coostmctioa poject to reduce the amount and duration of soil exposed to erosion by wind. nun. runott and vehicle tracking. . SUIT ABLE APPLICATIONS Proper sequencing of construction activities to reduce erosion potential should be incapo rated into the schedule of every construction project.. Use of other. more costly yet less effeaivc. crosioo and sedimentation controls. may often be reduced through proper coosuuction sequencing. • APPROACH • Project design considerations: Design project to integrate into existing land cootoms • Signific:ant icg:rading of a site will .requile mocc costly erosion and sedimentation coottol measures and may require that on-site drainage facilities be instaJJed. • Incotpooue existing. natural areas: Inventocy and evaluate the existing-site temtin and vegetation. DisaJroance ol highly erosive oamra1· areas {e.g .. s~ unstable slope an:as. watercourses) should be minfmi:n-.d. while prot.ccting ocher areas may enhance site ac:stbetics. Coostruction should no< disturb lhese areas (see ESC2). • A void tainy periods: Schedule major grading opaatioos during dry months. Allow . eoougb time before rainfall begins to stabilize the soil .with vegetltion or physical means {sec ESC 10 to 24) or to install tempoouy sediment irapping devices (see ESC 50 to 56). • Practice erosic:o and sedim~t control year round: Erosion may be caused during dry ~ by "freak" rainfall. wind and vehicle tracking. Therefore. keep the site stabilized year-round. and ictun wet season scxtiment trapping devices. • Minimm, soil exposed at ooe time: Schedule projeas to disturb poly small portions of the site at any ooc time. Complete grading as soon as possible. Immediately stabilize the disturbed portion before grading the next portico. Practice staged seeding-revegct cot and fill slopes as the work progresses. • Trenching: Cose and stabilize open trenches as soon as possible. Sequence trench ing projects so that most open portions of the trench arc cl~ befoce new ttc:ncbing is begun. REQ'OIREMENTS • Cost -Coostructioo scheduUng to reduce erosion may increase other coostruction costs due co~ economies of scaJe in pafomling site grating. The cost-effec tivcness of scbeduling techniques should be compared with the other~ less effective erosion and sedimentation conttols to achieve a cost-effective balance. Construction Hand book 5-5 Objectives Targeted PoDutants 0 S«J/ment 0 Nutrient6 0 Toxlc lhteriaJ. 0 OIi .t G/'eMe 0 Floauble U.t#iaJ. 0 Other Con.trucnon WNte • Ublytoll..-. Slgn/lkant lm,-:t 0 ProbllbS. Low or LWcnownlmpect Implementation R~uirements 0 CapltlllC:O.U 0 O&Meo.ts 0 Ma/nttJMnctl 0 Training 0 Suitlblllty for Slopu>S" f e High O Law ESC1 Be Man Practic March, 1993 BM·P: SCHEDULING ( Continue) LIMITATIONS ~ arc DO significant limitations to the use of this ~MP. REFERENCFS • • Best Management Practices and F.rosion Control Manual for ConstrUCtion Siccs. Aood Control District of Maricopa Couoty. Amooa-1992. Erosion and Sediment Control Guidelines fCX: Developing Areas in Texas. U.S. Dcpamncnt of Agriculrurc. Soil Conser vation Service.Fcxt Worth. Texas -1976. . Suxm Water Management foe Coosuuction-Acdvitcs. Developing Pollution PreYcntion Plans and Best Management · Practices. U.S. Enviroamcntll Prolectioo Agcix;y, Office of Watt! (EPA 832-R-92-005) -September, 1992. Virginia Erosioo and Sediment Cootrol Handbook. Third :Edition. Virginia Depanmcnt of Conservation and Rccreatioo. Division of Soil and Wata Conscrnmoo -1992. ESC1 Construction Handbook 5-6 March, 1993 ··• BMP: PRESERVATION OF EXISTING VEGETATION GENERAL DESCRlPTION Carefully planned preservation of existing vegetation minimizes the potential of rcmov.ing or injuring existing rrees. vines. shrubs and/or grasses tbat serve as erosion controls. SUITABLE APPLICATIONS • Areas within site where no construction activity occun. oc occurs at a later date. • Sensitive areas where namritt vcgewion exist and should be preserved. such as: steep slopes. watetcourscs. and building sitcS in wooded areas. • Areas wheic 1ocaJ.. state and federal govc:mment requires preservation. such as: vernal pools. wetlands. marshes. catain oak trees. ere. INSf ALLATION/APPUCATION CRITERIA • _ Clearly mark. nag or fence vegetation ex-areas where vegetation should be preserved. ••• Prepare landscaping plans which include as much existing vegetation as possible and state proper care of mis vegetation both during and after ·constnJCtioa. • • .• • DetiDe and protect with berms. fencing. signs. etc.. a setback area from vegewioo to be preserved. Setback area size should be based on the locatioo. ·species. size. age and po(CDtial impact of adjacent coastruction activities or permanent improv~ts. Proposed landscaping plans which do not include plant species that compete with tbc existing vegetation. Do not locate construction traffic routes. spoil piles. etc .. where significant adve.rsc impact on existing vegetation may occur. REQUIREMENTS • • Mamtetiance -Inspection and maintenance requirements for protection of vegetation are low. -During consttuction the limits of grading or disturbance should be clearly IIWted at all times. Irrigation or maintenance of native trees or vegetation should conform to spccifi• cations on the Landscape-Plan. _ Cost -There is little cost associated with presaving existing vegetation if properly planned during the project design. and may yield aesthetic benefits which cnbance property values. LIMITATIONS • Requires forward planning by the owner/developer. contracror and design staff. • Foe sitcS with diverse topography, it is ofr.en difficult and expensive to save existing crces while grading the site satisfactorily for the planned developmcnL • . Construction Hand booic 5-1 Objectives HoUS8klaping Praclicu Contain Wast• Control lntllm/ Erosion Targeted Pollutants • Sediment 0 Nutrlen~ 0 Toxic Materials 0 Oil & Gteue 0 Flimable Material$ 0 Other Construction Wute -· t.nc./ytolllln Slgn/tbnt Impact • Q Probllblt, Low or Unknown Impact Implementation Requiremonts 0 -Capital Costs 0 O&JICom 0 Ualntenanca 0 Training • Suitabmty for Slopes>5% • ,, • High O Low - ESC2 Be Man Practic MMCh. 1993 -· Additional Information -Preservation of Existing Vegetation The be.st way 10 prevent excessive erosion is to not disturb the land. On a consuuction site. where extensive land disturbance is nect:sSary, a rcasonable BMP would be ro not disturb Jand in sensitive areas of the site wbicb need not be ~ for the project to be viable (e.g .. natural watercourses. steep slopes), and to d~gn the site 10 incorporate particu larly unique or dcsircablc existing vegetation-into the site landscclping plan. Clearly marking and leaving a buff er area around these unjquc areas will both· beJp 10 preserve these areas as well ~ rake advantage of natural erosion prevention and sedimcnc trapping in narurally vegetated areas. Existing vegetation to be preserved on the site must be proteeted from mccbanical and other injury while the land is being dcvclopcd. The purpose of procecting existing vegetation is to insure the survival of desirable vegetation for shade. beautifi,:aooa. and erosion pror.caioo. Mawrc vegetation has extcmivc 1'00( sysu:ms that bclp to bold soil in place. thus icducing erosion. Also. vcgctadoa helps to keep soil from drying iapidly and beccming ~tiblc ro CIOS1oo. To effeaively save exisdng vegetali®9 no dismrbanccs of any kiDd sbould be allowed within a defined area . . around the vegetation. For ttccs. no consuuction activity should occur within the drip line of the tree. The. following aileria may be used foe dccidibg which vegetµion will remain on the site: • • Aesmetic values: Consideration should be given to foliage. flowering habits. bark and ~wn cbaractcristics (for UCC$). • Freedom uom disease and rot. • Life span of trees: Short-lived ttccs need not be preserved. • Environmental values: Habiw: screening; and bUffers. • Sudden exposure: Save vcgewioa which grows .in direct sunlight and is able to withstand radiated beat from proposed buildings and paVCJDCDL • Space needed: Snffidena spa.cc must be provided between the vegetation and any sauaures. cJecuic and telepbooc lines. Waler and sewer Jines. dri~ys and streets. Marl: tree$· andsbnJbs with bright paint oe ribbon SO tbcte is DO doubt as to which trees and shrubs are ID be left and protected from damage during CODSttUCtion. ·Saving-cxisting·vcgcwion and mawre ttccs oa-sit.c. beautifies. the area and may save-money by reducing new laodscap. rng ~ts. Mamre trees also iDacasc _propcny values and satisfy coosumcr aestbcdc needs. Prcscmng and protecting existing vegetation can often result pi more stable soil coadwons during coostruction. Can:ful site planning and idcntificati~ of plantings to preserve can provide erosion anti sedirncncuioa conuols during coosttuc doo. and coatribute 10 the aesthetics of the dcvelopmcuL For example, in Sacamcnto Couoty a tree oo:tinancc bas been adopted that proceas the native Califttnia Oak tree. Provisions to protect the tree and its root system during consuuctioa must be specified in tbc project plans. and an area must be provided whete the soil stability may not be disturbed. No grading or-construction storage within the tree driplinc is allowed. IDstaJJndon/AnniiacOD Building sites may be planned to micgrar.c existing vegetation and trees. Coosuuctioa impaas must be considered. Trench width fa-pipe coosuuaion projcas and the location ofpennancnt suuaurcs. such as buildings. needs 10 be coosidcrcd when ~g existing vegetation. iocluding mature trees ~d their root system. Native vegetation should be pccscrvcd sioce it is able to adapt to the climacc. The USDA Soil Cooscrvadon Service should _be comaaed about cxisling vegetation foe si:tes lbroughout Califauia. Mawrc trees arc generally preferable to newly planted trees because of the grcar.c:r soil stabilization provided by the extensive root system o( a mawrc ucc. ESC2 Construction .Handbook 5-8 M~1993 • • ,. Additional Information -Preservation of Existing Vegetation Methods for protecting existing vegetation and trees: • Stake off root system limics (drip line of tree). Some counties limit consuucoon wichin 5 feet of the tree drip line. • Fence off the are.a to be preserved or along the tree drip line. • Flag OC maik trees lO remain in place. • Tree wells and retaining walls (pen:nanenu .bclp preserve existing vegetation. but must be large enough co protect the root system (sec below). \ • For the California Oak tree. no trencbing or irrigation should be allowed within tbc dripliocs of the U'CC. since both tbese activities arc detrimemal to the preservation of the tree. ~ • Where grading under trees is necessary. excavation and fill should be limited tO 1 foot within the driplincs. REFERENCES ;BCSJ Management Practices and Erosion Control Manual for Construction Sites. Rood Control District of Maricopa COWlty, Arizona. September 1992. County ofSacramcntO Tree Preservation Ordinance -September 1981. Stormwater Management Water for the Puget Sound Basin. Washington State Department of Ecology, The Technical Manual-February 1992. Publication# 91-75. Water Quality Management Plan for the Lake Tahoe Region. Volume Il. Handbook of Management Practices. Tahoe Regidnal Planning Agency -November 1988 . ESC2 - r~ ,_.\7«. ,.,.,.._~ - Construction Handbook 5-9 MMCb, 1993 " ' t---UI-REMENTS ______ B_M_P_: _s_EED_IN_G_A_N_o_PLAN_· TI_N_G_(_Co_nt_in_u_e> ______ __.L REQ Maintenance - . Shrubs and rrccs must be adequately war.ered and fertilized and if needed pruned. - • Grasses may need lO be war.crcd and mowed. • • Cose Average annual cost for insrallati(?P and maintenance (2-year usefµl life. source: EPA. 1992) -• Seeding: S300 pet acre. appropriate for flat slopes and srabJc soils. • -,Seeding with:Mulching: S 1.100 pet~ apptopriatc for~ to steep slopes and/or erosive soils. • Trees. sbrubs. vines. and ground cover: Cost. applicability based on species used and tcmun features. LIMITATIONS • Pctmanent and temporary vegetldon may not be appropriate. in dry periods without irrigation. • Fcnilizct requirements' may have potential ro crearc srorm warer pollution if improperly applied. . ESC10 . ~ ~~· ,,,_._u Construction Hand book S-11 Marth, 1993 ··• • -' ' • .. ·- Additional Information -Sooding and Planting enc seeding of grasses. sodding. and planting of trees. shrubs. vines and ground covers can provide long-fCml iliz.ation of soil Permanent seeding and planting contributeS to long-tenn sue aesthetics and helps reduce erosion by reducing the vclodty of runoff: allowing infiltration to occur. filtering sedimcncs. and by holding soil partides in place. Seeding and planting sbouJd be ?PPlicd as soon as final grading is done to all graded and cleared areas of the construc tion site where plant cover is ultimately desired. For example. vegetation may be established along 1andscapcd corridors and buffer zones where they may act as filter strips (see TC6 in Chapter 5 of me MunicipaJ Handbook). Ac;fditionally; vcgetued swaJes. steep and/or rocky slopes and stream banks can also serve as appropriate areas foe seeding and plantings. Iosta JJarion(Ai;,pUc;ation Criteria Application of appopriale veget.adoa must consider. tbe seedbed Ol" plant.bed. JXope:r sasooa1 planting times. water rcquircmcDts fcnilizer rcquircmcnts aod availability of tbc selccu:d vcgctatioo witbm the JX'Ojcct·s region. Permanent plantings dming the c:omuuctioa stage of projects require~ cooafinatioo between tbc Jocal agency iDspcaors. JXOject manag~ coosuuaioo manageis. and landscape contclCtOC. Prococols fee c:oordiuadoa and implementation procedmes regarding site aa;css. ~ staging. 3Dd short-and loog-renn planting areas should be developed prior to tbc-ccnsrruaioo bid ~ Wbete possible. these prowcols should be established by and remain the responsibility of the site owner. • B«:ause of tbe many available types of plants aI>d ground covers anrl because sir.c conditions and laod use vary so widely widlin California. a set oC gcncral guidcJines is included foe iJl.wtUadoo/appliatioo of grasses. trees and shrubs. vina aod ground covers. However. your local municipality. Soil Coosavarioa Sctvice. agricultural cxtentioo. or other resources should be coosulted oa ~ species. planting requirements. and mamtenance PCeds for your climate and .soils. • ~ depeoding on the type. provide shore-tam soil stabilization during coostruction or can serve as long-tum/ permanent soil stabiJizatioo foe disturbed ~ In genc::ral. grasses JX'Ovidc low mainfenaDCe to~ that have been d:3rcd. grade,d ao,f mc:cbanically stabilized. ≶tion· Tbe selcctioo of lbc. gr.iss type is dctcmliDcd by ~ ciim;uc, iaigatioo. mowing frcqucncy •. DWT'rcna~ effort and soil bed _cooditiom. Altbough grasses provide quick gcrmmatioo aod rapid growth, they also bavc a shallow root s~tem aod ate not as effeaivc in stabilizing deep soils. wbetc uecs, sbrDbs and deep roou:d grouod covas ~y be more appropriare. Scvml grasses .uc adaptable to the various California climates. The figure at the coo of these fact sheets shows awro priase grasses fee regioos widlin California.. Blue grass is well adapted throughout California exccpc for in the valley regiom. The blue grm is found oo my, saody soils that have good dRinage. Bermuda giass. oo the other hand is well adapced in the valley region where soils arc dry, ccersc and heavier. Specific seed mix and/or varieties for each sicc should be provided by ID approved/qualified plant materials spcriallst • ESC10 Construction Handbook 5 -12 MaFCh~ 1993 Additional Information -Seedingand'Pfanting PJaoring: Tbc following steps should be followed to ensure established growth: 1. Scled the proper grass for the site. . 2. Prepare the seedbed: soil should be f cniliud and contain good topsoil or soiJ at least a 2: 1 or flatter slope. 3. Broadcast tbe seedings in tbe lat.e fall or early spring. In tbe late fall. seedings should be planted by mid-September to have esta.blisbcd grass by the October rainy season. 4. Initial inigatioo will be required often fer most grasses. with follow-up irrigation and fcnilization as needed. Mulching may be required in dry climates or during drought years. Trees & Shrubs Sekaimr Trees and shrubs. wben properly sdcacd. arc low maintenance plantings tbat stabilize. adjacent soils. modctare tbe adjacent temperatures. fllter air pollutanas. ind serve as a barrier to wind. Some desirable cbaraaeristics to consider in· seleaiog ttceS and shrubs include: viger. species. age. ~ and shape. and use as a wildlife food sourc.c and habitaL Trees and shrubs IO be saved sbouJd be dearly marx.cd so tbat DO CODSUUctiOD activity will lake place within the driplinc of the planL 1bc sites fer new plantings should be evaluated. Consider the prior use of lbc land: adverse soil conditions such as poor drainage er ~ty; exposure to wind: temperawrc extremes: 1~ of utilities. pav~ areas. and security ligbtin' and ttaffic: problems. TraOSDlaodor= Tune ol Year -Late fall through winter (November 10 .February) is tbc prefarcd time for transplanting in most of • California. • Preparatioa • Proper di.gging of a tree/sbrub includes the conservation of as much of the root system as possible. Soil .. adbering to tbe roots·shouJd be damp when tbe tree is dug. and. kept moist until re-planting. The soil ball should be 12 incbcs in diameter for cacti inch of diameter of the trunk. Site preparation • Refer to landscape plans and specifications for site and soil preparation. and for ability to coordinate coosttuctioo sttategy with pcnnancnt vegetation. Suppating lhc uunk • Many newly planted trees/shrubs need artificial supix,rt lO prevent excessive swaying. Watering -Soil around tbe tree should be thoroughly watered after the tree is set in place. Wbc:n tbc, soil becomes dry. the ttce should be watered deeply, but not often. MuJching around the base of the tree is bclpful in preventing roots from ·dryingouL Vines &·Ground Covers SetcaiPo; . Vmes. ground covers, and low growing plants. that can quickly spread. come in many types. colors. and growth habits. Some arc suitable only as pan of a small maintained landscape area. while some can stabilize large areas witb little mainrenancc. Flowers. which provide little long-term erosion control ~y be planted to add color and varietal appear-aoces. ESC10 L~ --~ " t P'ndk,NW . Construction Handbook 5 • 13 M.arch. 1993 l , I~~ .,:- • I I . I ! Additional Int ormation -Seeding and Planting • n should be exercised in che non-native vegetation ~use of impaas to nativ~:vegetarioo on adjacent lands. For e plc:. species dl.at may be planted at the construction sire C3D quickly spread and compete with origillally undisnzrbed vegetation such as the Califcxnia Poppy and California buckwbear. bocb of. which ~mpJere pocrly with introduc.ed grasses (e.g .. planting wild oats is illegal in Califcrnia). In addition to stabilizing disturbed soil. vines and ground covers can perform che following functions: • 1.. Provide attractive cover chat does not need mowing. 2. Help to define rraffic areas and control pedestrian movemenL Site Pxcmv:auon; Ground covers ate plants thauwurally grow very oosc together. causing severe competition foe space nutticnts and water. Soil for ground cover.s should be well prepared. The entire area should be spaded. disced. or rototillcd to a dep(h of six to eight inches. Two to three inches of organic material. such as good topsoil oc peal. should be sprcad-0vc:r-cbe entire area. P1;mtjnz; lbe_foUowing steps will .help ensure good plant growth. 1. Make the pfantings following the contours of the land. 2. Dig tbeholes l/3 Jargertban the plant root bait 3. Know what depth to place the plants. 4. Use good ~ oc soil mixture with a lot of a-game matter. S. Fill bole 1/3 to 112 full, ~ plants to scttfe soil amoog IOO(S. then water. 6. Leave sana:r-sbapc:d ~ around the plant to bold water. -~~ ~ghly and regularly. . .,....,~ plants according. fO the tr?? of plant and the exu:nt of covering desired., MatroaJs- Therc arc many diffemJtspecics of vines and ground covers from which to choose. but care must be taken in weir seJection. It i,;. essential to select planting mataia1s • suited to both the intended use and specific site characteristics. The pbnts discussed in this handbook are those which are lcDowD to be adapted to Califomia. arxf COOJroonly available from canmc:rcial nurseries. Additiooal infoa:natioo can be ob<aincd from local nurserymen. 1aDdscapc architeets. and cxtcn sioo agents. An approved low water use plant list may be obtained from me State Department of Wat.er Resources or the Soils Cooservatioo Service. • Ba:uuxtJDcms Maintenance . General requirements include: 1 • Gas.-: maintenance should ~ minimal to nooe. hrigation and regular fertilizing may be required foc some types of ~ Mowing is ooly required in areas where aesthetics or f.tre hazards are a conccm. • Yoong trees should receive an inch of water e3Ch Wctt for the first two years after planting. The tree should be watered deq>ly, but not more often than once per week. • Tnmsplanred trees should be fertiliz.ed on an aimnal basis. • Proper {XUDing. watering. aod applicatioo of fertiliur is ncccssary to maintain 1'ealtby and vigorous shrubs. A heavy Jaya-of mulch applied around the shrubs reduces weeds and retains moisture. • Trim old growth as needed to improve the appeaiance of ground covers. Most cover.s need ooce-a-year trimming to pcano~growth. . ES~O •· { Construction Handbook 5 -14 March, 1993 AddiUonat l'nformati:on -Seeding and Plantjng II l,imirarjon~ 1[ l_ • CoostructiQO acnvitics arc likely to injure or kill trees unless adequate proteetive measures arc taken. Direct contac by equipment is the most obvious problem. but damage is also caused by root strcsS from filling. excavation. or ~ canpacting too close to trCCS. • Temporary seeding can only be viable when adequate Jimc is available for plants ro grow and establish. • Over fcnilizing of pbnts may cause pollution of stocm watet runoff. • Irrigation source and supply may be limiting. REFERENCES Best Management Practices and Erosi~ Control Manual for Construetioa Sires. Rood Control District of Maricopa . County, September 1992. · .. Draft.• ScdimeutwOD aad Erosion Conu:ol. All Inventory ofCwmu Practices ... U.S.E.P .:A.. April. 1990. Guides for Erosion and Sediment Controls. iD California. USDA Soils Conservation Service -January 1991. Kiowa Engineering. Inr.cri.J.? Erosion and Sedimentation Control for Construction Activities. Urban Drainage and FJood· Cootrol District. Denver, Colorado. Manual of Standards oCErosion and Sediment Control Measures. Associatiai of Bay Arca Go'YCmmcnts, Jun 1981. ~ Guidaocc Specifying Management Measures for Sources ofNonpoint Pollution in Coastal Waters. Work Group W~g Papc:r, USEP A. April. 1992. Stormwacer M.anagc:.qit:nt Water for the Puget Sound Basin.Washington State Dcpanment of Ecology, The Tcclm.ical . Manual• February 1~ Publication# 91-75. Wau:r Quality Maoagcmcnt P!an for-the Lake Tahoe Region. Volume II. Handbook of Management Practi~. Tahoe Regional Planning Agency-November 1988. ~C10 .. . fl L~ ...,.\,7,/f{ ,,....w ConstIJsction Handbook 5 -15 March, 1993 lr • • 8 Mp: MULCHING Objoctivas H~Hping Pnctic.$ ConwnWast• lllnimiz. DisturNd Arm Mulching $:9~ GENERAL DESCRIPTION: ·MuJcbing is used to rempaarily and pennanently stabilize dcartd or freshly seeded areas. Types of mulches inciudc organic m.ateriaJs. straw. wood chips. bad: or other wood fibers. decomposed granite, and gravel. SUITABLE APPLICATIONS • Temporary st.abilizadoo of .freshly seeded and planted are.as. • Tcmporaiy stabiliz3doo during periods unsuit.ablc for growing vegetation. • Temporary stabilizatioo ol areas that cannot be seeded oc planted (e.g., insufficient rain, sieep slope). . • MuJcbcs such as gravel and dc:composed soils may be. used as post-<ODSttUction BMPs. panicularly in arid regions. :ALLATION/APPLICATION CRITERIA • uJch prevents crosioa by pro(CCting tbc soil surface and fostering growth of new seedings that do not mbilizc by themselves. • • May be used with netting U> supplemcnt soiJ st.abiJm,riQD. • . _ Apply to planting areas where slopes are 2: 1 or grc::ua. • B~ may be required foe sie.ep areas. or if wind and runoff is a probJem. • Type of mulcb.· bindcts. aod application· rates should be recommended by manuf.ac ~cootracta. REQ'(JIREMENTS • • Maintenance -Must be inspected weekly and after rain for damage or dctaioration. Cost: Avenge annual cost for installation and maintenance (3-4 mooib useful life. source: EPA. 1992) • -Straw Mulch: S7.SOO per acre. • Wood Fiber Mulch: S3.SOO pa acre. Jute Netting: Sl~ pet aae. LIMITATIONS . • Wood fiber mulches should be used only in areas with over 20 iDChes azm~ {X'Ccipi- tatioo. • Organic mnkhes !Ve not peml3DCDt erosion control measures. • Mulchc.s tend to lower the soil ·surface tempaamre. and may delay gemtinarion of some seeds. • . . \ Permanent mulches for arid regions should include gravel and dccomposro soils. ~ Construction Handbook 5 • 16 Control Sit• P.rin»t.r Control lntNrW Erosion Targeted Pollutants • s«nm.nt Q Nutrlenu 0 Toxic Jhlt•ri•J. 0 OIi A Great1 0 Flolltabht Jbterial• 0 OU,. Conmuction w-,. • UW,to,,..,. ·Sls,nlllcMt lmp,,ct O.Pr°""1b#IAwor u.tno.nlmpM:t lm~tation Requirements Q Capita/Com, Q OltAI C:O.t. Q Ualntenanctt. 0 Training • Suhbility for S/opu>5" I • High O Low ESC11 Be Man Practi March, 1993 ,__ ______ A_d_d_:it_io_·n_·a_J _fn_fo_rm_·_a_tio_n_-_M_u_fch_ing ______ __,!f_ -Muklung (ll00<1S +, liom rainfall impoa: i==s iofilil'3lion: conscr,es mcisnuc aroUPd = shrubs aoo L seedings; prevents ·on and cracking of soil: and aids plant growth for seedings aod plantings by holding tbc •. seeds. fcnilizer3 and topsoil in place until growth occurs. Mulches iocludc organic materials. suaw, wood chips. hart: or odJer wood fibers. decomposed granite and gravel A variety of nettings or mats of organic or non-organic materials and cbemic:al soil stlbilizatioo arc practices that may be used conjunctively with mulching. Mulchmg may be applied U> all graded and cleared areas of the consuuaioo site: • Areas wbic:h have been pe:rmancntly sccdcd U> assist in retaining moismre. and to hold seedings; • Areas which need temporary soil surface protec:tioi1 because ~g canoot occur due U> tbe season; • Areas between treCS, shrubs and ccnain ground covers; • Areas wbc:e climatic coadidons require a soil moisture rctentioo aid to avoid crad:ing of the soil and associated compactioa. and require soil trmpcraCmC modification. XustaUadQQ(AaoJiratjnn Oitetia Only a set of gcncnl guideliDcs is included foe application and insta1Jadoa of mukhing OD disturbed lands because of tbe various ctiaiares. soil conditions and land uses in .CalifOOJia. Installation of mulch coasists or furnishing all Diat.c:riaJs. preparing the soil surface and applying tbc mulch to all soil surface areas designated on tbc project plans or established . by the sue engineer. • . - Materials Orpmc mulch materials. sucb as straw, wood chips. bartand wood fiber, have been found to be most dfectivc where . re-vcgeWioo will be provided by re_seeding. The choice of mulch should be based oa the size of the area. site slopes.. • smfacc roodmoos such as hardness and moisture; weed .growth and availability. of mulch mataiais. Wood Fiber Mllkhes: Wood fiber mulches coasist of specially prepared wood fiber processed 10 coata.in no growth gcrmmatial inbiliona liaoa. The mulch should be from virgin wood. and be manufaaurcd and processed so the fibers • will rcmam in DDiform.-lbspcm;oo in ·water uodct·agirarm 10 form a: .baDogcnous sluny. The fiber lengths should be as long as possible ID~ the effectiveness foe erosion control WOQd fiber malcbing sbouJd not be used in areas of cxttc:mcly bot snmrna: and late fall seasons because of fire danger. Wbcn used as a rad:i6et wilb straw mulch. wood fiber mulches arc good for steep slopes and scvete ctimares. The California Office ollbc ~ Coascrvadoo Service m::ornmcnds a DOD-toxic mulch green dye be used U>_providc a visual aid in metering ~oos. Wood CJaipl and Bark Chips: Wood·and baa: chips arc suitable for applicaiioo in landscaped areas tbat will not be • cJoscly mowed. Wood chips do not require tacking, but do require nitrogen tttanuem (12 pouods/1on) to prevent nutrient deficmx:y. Bart cmps do oot .rcqnirc additiooal Dittogen fctilm:r. When the wood source is near the project site. wood and hid: chips C3D be very mcxpcmivc. Caudal must be used in areas of steep slopes. since bod1 wood and bark chips tend to. wash down slopes excct.ding 6 pcrccoL Straw Mulda:" Straw mulch is a good shcxt-tcnn protectioa most commonly used with seeding. The mulch should be from the c:um:nt scasoo's aop. A ~ ol c:cnificatioo from the supplier should be required to show that the suaw was baled Jess than 12 months from the delivery date. Wheat« oat suaw is recoo:,mcndcd -EmulsiJJecf Asphalt Asphalt is used to adhae the mulch to tbc ground surface, prcvendng tbc mulch from blowing or • washing off. The type aDd quantity of asphalt used should oot result in a stomi waacr pollutioa ·problem. Binder: Binder should be free flowing. noacorrosivc powder poduccd from natural plant gum such as lhosc maitctcd under M-Bindcr, Ml45 Binder, oe AZ-TAC. Synthetic. spay-on materials are not rccanmcndr4 ~ tbev tend ID ·~an impervious surface. and may enter the stormwaicr sewer system via discharge IUDOff. ESC11 . • ~~'~' ~=~==·=··· ~~~·~,:,· Construction Hand book S -11 March, 1993 Additional Information -Mulching • ;:rations/Methods and Eauwrornt ;, 'w MuJch.: Should be applied in an even. unifonn manner. cicber by hand or by niulcb.blowing equipment Straw mulches must be anchored ro prevent lbe mulch from being blown or washed off the site. Anchoring is achieved in cwo ways: • . Crimping: The mulch is anchored by running a heavy disc with flat.. dull. serrated. dosely-spaced blades over me mulched soil Effective aimping embeds tbe mulch about 2 .inches into the soil without complctdy covering iL The disc should be run ooce or twice across the soil. About 2 1/1. tons of straw mulch per acre should be applied if the mulch is anchored by crimping.. • Tacking: Ad1icvcd using a emulsifk.d asphalt or binder either independently or followed by aimping. If tacked. suaw mulch may be applied at a rate ol 1 3/4 too per acre. and tacked with ~ulsificd asphalt at a rate of 500 gallons per acre. Wood Flber MuJch: Typically.applied with a hydroseedcr at a-rate of aoout 1000 to 1500 pounds per acre. or as a slurry coosisring of at least 150 pounds of binder, 400 pounds of wood fiber mulch. and 200 gallons of water per acre. Bc:auirerocnts Maintenance: MuJchc:d areas icquite frequent inspection for damage and deterioration. Requirements will vary greatly based oo the type of mulch ~ and the_ type of vegetatioo to be established. Vegetative mulches arc usually not intended to be permanent; but arc extended only as a base for re-seeding or re-vegetation. Where a pcrmancnt ancba-for vegetatioo is requited. along steep slopes or areas of higher velocity flows. cben a gcotextile mat or net is recommended (sec ESC20). . REFERENCES Best Maaagcment ~ and Erosion Control Manual for Coostmctioo Sites. Flood Control District of Maricopa .. ~-._..1992. • auy.~ . ;-l~lling ~oo of ~oostruction Sites. U.S. Depanmcnt of AgricnJtme. Soil~ Service, Agricultmc Infoonatioo # 347 . .. ~ -Scdimcntwoo and Erosion Cootrol. An Inventory of Cum:nt Practices ... U.S.E.P .A. ~ 1990 . .. E.nviroomcmal ~ Manual~. City of Austin. Tc:x3S. Guides foe Erosion & Sediment Coottol in California.. USDA Soils Cooscivatioo Service -ianuary 1991. Manual of Standards d Erosion and Sediment Control Measures. Associatioo of Bay Arca Govcmmcnts. June 1981. Proposed Guidance Specifying Management Measures for~ of Noopoint Pollution in Coastal Warm. W ext Group Woddng Paper. USEPA. ~ 1992. Soil E.rosioo by Water. U.S. ~cnt of Agricultme. Soil Conservation Distri.ct. Agricuitmc Infonnation Bulletin 1513. Stoonwatcr Management Water foe the Puget Sound Basin. Washington State Deparorient of Ecology, The Technical Manual -Fcoomy 1992, Publicatioo # 91-75. • Water Qualicy Management Plan for tbc Lake Tahoe Region. Volume n. Handbook of Management Practices, Tahoe Regiooal Planning Agency -November 1988. ESC11 r ~- Ccnstruction Handbook 5 -18 March. 1993 8-MP: GEOTEXTJLESAND MATS GENERAL DFSCRIPllON Mattings made oCnarural'or syntbctic material which are used to temporarily or perma nc:utly stabilize soil. SUIT ABLE APPLICATIONS Typically suited for post-cposrruction site stabilization. but may be used for temporary stabilization of highly erosive soils. • Cbanoc:fs and streams. • Steep slopes. . INSTALLATION/APPUCA TION CRITERIA Mattings may be applied 10 diswcbcd soils and where existing vegetation bas been removed. 1'hc follo_wing organic malling materials provide temporary protection until pennanent vegetation is ewu,lisbed. oc when seasonal cirounstnu:cs dictate the need for temporary stabilization u1'P weather or construction delays are resolved. . • Jute mattings. • Straw mattings. The following syntbctic mattings may be used for either temporary or post-construction stabili7.ation. both with and without vegetation • Excdsioc matting. • • Glass ti= m.auing. • Staples. • Mulcb nettings. REQUIREMENTS • Maintenance Inspect monthly and after significant rainfall • Objectives Housekeeping Practic,s Conuin Wast• l,linimizs Disturb,d iliu Disturb«/ CQntro/ Sit, P1rim,t,r Control Jnt1mal Erosion Targeted Pollutants • Sediment 0 Nutrients· 0 Toxic Materials· 0 OJI & Grease 0 Flo•tab,. Mat.rials 0 Other Construction Wute • UblytoHw• Slgnllbutt Impact 0 Probab,. Low or Unbown lmpr,ct Implementation Requirements • Capital Costs g O&MCosts g Maintenance 0 Training ·• Suitability for Slopu>5% -Rc-aucbor loosened .mat$g and replace missing matting and staples as required. • Cost . • .---------11 -Relatively high compared to other BMPs. l • High O Low LIMITATIONS . • Mattings are more costly than other BMP practices. limiting their use to areas wbcrc ocbcr BMPs are ineffective {e.g .. cbannef5, steep slopes). • May delay seed grmunatioo, due to reduction in soil temperawte. • Insrallatioo requires ~enced contractor to ensure soil stabiliiation and erosion ~ ESC20 ee· I Man ~=====~·===============~=P~ra~c~ti~c ===::!!·• Construction Handbook 5 -19 Marth, 1993 Additional Information -Geotextifes and Mats ~ngs are used ro reduce erosion from rainfall impaa. hold soil in place. and absd~ and bold moisture near the soiJ ~ Additionally. mattings may be used ro stabilize soils until vegetation is established. This practice may be used alone or with a mulch during the establishment of procective cover on critical slopes (sec ESCl 1, Mulching). Suitable A12pfkarions . Mattings are commonly appli~ on shoct. steep slopes where erosion hazard is high and vcget.ation will be slow co establish. Mattings are also US;Cd on stream banks where moving water at velocities between 3 fps and 6 fps is likely to wash out new vegetation, and_ in areas where the soil surface is disturbed and where existing vegetation bas been re moved. Matting ~y also be used when Sl!Cding cannot occur (e.g .. late season construction and/or the arrival of an early rain season). Erosion comrol matting should be.considered wbcn the soils arc fine grained :ind potentially erosive. The following narural or synthetic mattings are canmon1y used: Jure Mar -should be cJotb of a uniform plain weave of undycd and unbleadled single jute yarn. 48" in width. and weighing an average of 1.2 pounds per linear yard of cloth wit.ti a ~Ierancc of plus or minus five (S) percent. with , approximately 78 warp ends per width of doth and 41 weft ends per linear yard of cloth. The yam should be of a loosely ; twisted construetion having an average twist of not less than 1.6 turns per inch and shall not vary in thickness by more I than its nonnal diameter. Strnw Mat-: should be a machine produced mat consisting of 70% (±3%) agricultural suaw and 30% (±3%) coconut fiber. The blanket should be of consistent thickness with the straw and coconut fiber evenly distributed over the entire area of the mat. The blanket should be covered on the top side with polypropylene netting having an approximaie 5/8" x s/8· mesh cootaining ultraviolet additives to resist breakdown,. and on the bottom with a poJypropyJene netting with an approximate .. x .. mesh. The blanket sbould be sewn together with couon thread. _A,~or M:it -sh~d be wood ~cclsior. ~ _inches in width. plus or minus ooe ind{.and weighlng 0.8 pound per square ~minus ten pcrcenL The excclsior material should be covered with a netttng to f.acilitate handling and to increase strength. Glass EhQ: Mattin: -should be of bonded textile glass fibers with an average fiber drametcr of eight to twclve microns. two· to four inch strands of fiber bonded with phenol formaldehyde resin. M.at should be roll ~ water permeable. minimum thickness inch,; maximum thickness inch. density not Jess than three pounds per cubic foot. S!al2lcs for anchoring soil stabilizing marerials should be Number 11 gauge wire oc heavier. ·Their length should be six co ten incbes, with longer staples used in loose. unstable soils. Qtbex'.Mukh Nettin~ -such as paper, plastic. cotton or fiber glass matting should be installed according to tJ?c manufacturer's recommendations. Tnstaltaaon/Am,Jkarion Criteria Organic matting materials have been found to be effective where re-vegetation will be provided by re-seeding. The choice of matting should be ~ oo the size of area. side slopes. surface conditions such as hardness and moisture; weed growth and availability of materials. Matting-strengths and uses vary, therefore. manufacturer's specifications must be followed. Proper installation of mattings is aitical in"order to obtain .fum. cootinuous contact with the soil. ESC20 Construction Handbook 5 -20 March, 1993 ,_ ______ A_d_d_it_io_n_a_l_ln_f_o_rm_a_t_io_n_-_G_eo_t_ext_i_Jes_a_nd_M_a_ts _____ J -• Site Prtpanti<>nf fL-tcr the sice bas been shaped and graded ro the approved design. prepare a friable seed bed rela-•• lively free from dell; and rocks more than l inches in diameter and any foreign m:uerial that will prevent contact o( the protective mat with the soil surface. Planting: Fertilize and seed in accordance with seeding specifications or orber types of landscaping plans. When using juce malling on a~ area. apply approximau:ly half the seed before laying rbe mat and the remainder after laying the mat. The polCCtivc matting can be laid over areas where grass has been planted and the seedlings have emerged. Mx= vines or otbet ground covers arc to be planted. lay the protective matting first and rben plant through matting .according to design of planting. Erosion Stops: Erosion stops arc made of glass fiber strips. excelsior inaning strips or tight-folded jute matting blanket or strips for use on steep, highly erodible warerc:ourses. The stopS arc placed in narrow lrCDCbes six to twelve indJcs .deep .ICJ'OSS the cbaoncl and left flusb with the soil surface. Tbcy arc to cover the full aoss section of designed flow. Laying and Securing Matting: Before laying the J;Datting. all erosion ~ops should be installed and rbc friable seed bed made f.rcc Cran clods. rocks. and roots. The surface upon which the separation fabric will be placed should be compacted and finished according to the requirements of the manufacturer's recommendations. - Most matting comes with the .manufacturet·s recommcnclatioos for inswlatioo. Most cbauocls will require multiple widths ot matting. and lbc matting sbouJd be unrolled starting at the upper end of the cbanocl. allowing a four inch overlap of mattings aloog the center of the cbanncl. To seaue. bury the top ends of the mauing in a narrow trench. a minbnum i,t six inches deep. Backfill trench and tamp firmly to cooform to channel cross section. Sccutc with a row of staples about four~ down sJopc from thc IIC.DCh with siapJcs twelve incbcs apart. Where matting crosses erosion stops. reinforce with a double row of staples at six inch spacing. using a staggered pattern oa eilher sjdc of the if4o.sioa stop. When the matting is ov~ the discharge end of the matting liner should be . similarly secured wid( a double row of staples. Mechanical or manual laydown equipment should be capable of haDdling full rolls of fabric. and laying rbe fabric smoodlly. without wrinkles er folds. The equipment should meet the baic manufacturet's recommendations or cquiva. lent standards. Final Checlc! Check. the following after the mating is installed: • Mate sure matting is uniformly in contact with the soil.. • AU lap joints arc secure. • All staples arc flush with the ground. • All disturbed areas seeded WroitaUaos Properly installed mattings provide excellent erosion control but do so at relatively high cost. This high cost typically . limits the use of mattings ro areas of concentrated channel flow and steep slopes. . Jnstallatlon is aitical and requires cxpcricDced coottacuxs. The contl3Ct0r should iDsta1l the ~g material in such a , manocr that CODtinuous contact bctwccn the maicrial and the soil occurs, otherwise the marcria1 will DOt stlbilize lbc soil and erosion will oo:ur bcncatb the uwcriaL tnuaviolct proteetioa may be required on some geoccxtilcs. Matting Sttcngths and uses vary; the manufaaurcr's specifications should be followed. . ESC20 ~ \ • ~ f . • . Construction Handbook S -21 March, 1993 ! I Additlonal Information -Geotextifes and Mats RENCES :t-., Management Practices and Erosion ·Control Manual for Construetion Si~~ood Control District of Maricopa i County, September 1992 Guides for Erosion and Sediment Controls in California. USDA S9ils Conservation Service· January 1991. Stonnwater Management Water for the Puget Sound Basin. Washingroo St.ate Depanment of Ecology. The Technical Manual. February 1992. Publication# 91•75. Wattt Quality Management Plan for the Lakc_Tahoe Region. Volume ll. Handbook of Management Practices. Tahoe Regional Planning Agency• November 1988. ESC20 Construction Handbook March,1993 ,__ _____ A_d_d_it_io_n_a_f_ln_f_o_rm_., ,_at_io_n_-_G_eot_ext_ne_s_and_M_ats _____ -Jl FLOW ANCHOR SLOT; BURY THE UP-CHANNEL END OF THE NET IN A 12 .. DEEP TRENCH. TAMP THE SOIL FIRMLY. STAPLE AT 12 .. INTERVALS ACROSS THE NET. OVERLAP: OVERLAP EDGES OF THE STRIPS AT LEAST 4"'. STAPLE EVERY 12• DOWN THE CENTER OF THE STRIP. JOINING STRIPS; INSERT THE NEW ROLL OR NET IN A TRENCH. AS WITH THE ANCHOR SLOT. OVERLAP THE UP-cHANNEL ENO OF THE PREVIOUS ROLL ta• ANO TURN THE ENO OF THE PREVIOUS ROLL. JUST aaow THE ANCHOR SLOT. LEAVING s• OVERLAP. CHECK SLOTS; · ON ERODIBLE SOILS OR STEEP SLOPES. CHECK SLOTS SHOULD BE MADE EVERY 15 FEET. INSERT A FOLD OF THE NET INTO A 6"" TRENCH ANO TRAMP FIRMLY. STAPLE AT 12• INTERVALS ACROSS THE NET. LAY THE NET SMOOTHLY ON THE SURF ACE OF THE son. -DO NO'T STRETCH THE NET. ANO. DO NOT ALLOW WRINKLES. • ANCHORING ENOS AT SIBUCTURES: PLACE THE END OF THE NET IN A 12• SLOT ON THE UP-cHANNEL SIDE OF THE STRUCTURE. ___ FILL THE TRENCH AND TAMP FIRMl. Y. ROLL THE NET UP THE CHANNEL. PLACE STAPLES AT 12• INTERVALS ALONG THE ANCHOR ENO OF THE NET. INSTALLATION OF NETTING AND MATTING ESC20 ~ I I I f ·-\ • " L==============~===-• Construction Handbook M~l993 ·• . . : . I . I I I I ! I . I t I • I I I I I ! I ' ! I . . . ! • . I I • I I I I I I t • I ! I I • ' ' I I I I I I I I I . t t I . I t I t I t t I I I I I 1-1 I I t I I I I I I I I CSHALLOW SLOPES> f1..Ati SECTION FLOW mrrao fL.Ali . I I • I I I I I I I I I I I . t I I I I I i I t I I I I . t I • I • I I I . I • • I I : t I I I . I I I I I I I I I I I I ' t I . . . • I I ' I I . I I I I I ; .. ' ' I . I I I I I I I I I I I I I I I I I I CSTEEP St.OPE> a..Ati BRN1 NETTING DOWN TO A. LE:Va. BEFORE TERMINATING TIE INST AU.A TJ0N. TURN nE EM> UNDER S-ANO STAPLE AT ~ HTERVALS. WHERE TllERE IS A BERM AT THE Tm--OF n£ SLOPE. BRING THE MATTING OVER ll£ BERM AMl ANCHOR IT BElilNO Tl£ BERM 'ltTif A iz• ANCHOR TRENCH. ESC20 ORIENTATION Of Nf I I tiG ANO_ MATTlfiG Construction Handbook 5 -24 March, 1993 I BMP: DUSTCONTROLS GENERAL D~CR.IPI'ION Dust coatrol measures arc med to stabilize soil !ran wind erosion. and reduce dust :generated by coosuuctioa activiti~ • SUITABLE APPLICATIONS • • Clearing and grading activities. ·• Coosuuaioo vebiclc traffic oa unpaved roads. • • Drilling and blastmg aaivitics. • Sedhnc:nr lr.iddng oato pa'Y'Cd roads. • Soil and dcms storage piles. •• Batcb drop from front end loaders. • Areas with mwabilizcd soil. • Fmal grading/site ~Jizarion n.suaJiy is suffidenr to coottol post-a:>osttuc:tioa dust sources. I JNSTALLATION/APPLICATION CRITERIA • ScbcduJc roasuuc:rioa actividcs·to rniairnize ~area (SceESC 1). • Quickly stabilize exposed soils using vcgetatioa. muJching. spray-on adhesives. • calcium chJoridc. sprinkling, and stondgravcl layering (Sec ESC 10 and 11). • Identify and mbilm: key access points pricx to canmc:ncemcnt or c:oosttUctioa (Sec ESC24)~ • • Minimizing the impact of dust by anticipating tbc directioa or ixcvailing winds. • Direct most c:oostrDCDOG traffic 10 stabilized roadways within the pttject sitc (Sec ESC 23). REQUIREMENTS • Maintc:nanc:c • Most dust control measures require frequent, often daily, attention. • Cost • InstaUation a>stS foc watcr/cbeuiical dust supprcssioo arc-low, but annual costs may be quite high since these measures arc effective for ooly a few hours to a few days. LIMITATIONS • Watering prevents dust only for a short period and shoold be applied daily (or more ·often) to be effective. • Ovctwat.ering may cause crosioo. •• Oil should not be used for dust control becansc the oil may migrate into drainagcway am/oc seep into the soil. -,;,.= • '.'. • Certain chcmic:ally-trcated subgradcs may make soil water rcpellant. iDcrcasiog rmi6tf/ Construction Handbook 5-25 Objectives Cf.____OU$MCHping Prd""?J> Contain Wat. .·. ., ~~i;:• tabib D/Jturt»d Ana · Prot.ct SlopwCh,nM/$ <@& Sit• PNfa»]j!;> Centro/ lnt«m/ Ero$/on Targeted PoUutants .s.dltnMt 0 Nutrl.,,,. Q Toxic M«eriaJ. Q 0111,a,.,,... 0 Floatl,b/e Mld«fah 0 Other Con.tructJon Wat• • I.Jaly»,,.,,. Slgnltbnt lmp,,ct · 0 l'robabl,, Low or lmpct lmpt.mentatlon Requlraments . 0 C.tpitll/ Con. Q O&Meo.ta Q IM/nten,,nc. Q Training 0 Sultllbmty for Slop#>5" I • High O Low ESC21 Be Ma Practf March, 1993 .. ··• Additional Information -Dust Controls • ornia • s mediterT3Ilcan di mare. with short wet seasons and long bot dry ~~ allow the soils to tbcrougbly dry During these dry seasons. coostruaion activities are at their peak. and distur¥-nce and exposed areas are increas ingly subject to wind erosion. sediment ttacl:ing and dust genera~ by consrruction equipmenL Dust cootroJ. as a BMP. is a practice that is al.ready in plac:c for many consuuction activities. Los Angeles. the North Coast and Sacramento. among others have cnact.e.d dust control IXCiinances for construction activities that cause dust to be uansported beyond tbc construction project propeny line. ~tly. the State Ajr Resources CoouoJ Board has. under the authority of the Ocan Air Act. started to address air quality in relation to inhalab,le particular.e matter Jess than 10 microos (PM-IO). 90% of these small panides ace considered to be dust. Existing dust contt0l rega1atibns by local agencies. municipal departments. Pl:)blic woda departmcat. and/or public hca!th departmcats arc in place in some regions widtln 1 California. • For jurisdictioos that have no fomial dust control regulatioos and/ex standards. Scctioos 10. 17 and 18 of I earrrans• Slandard Specific:a.tioas provide detailed provisions for dust cootrol p-actices. I I I I Many.local agendcs tcquire dust coouol in croer to comply with local nuis3nce Jaws. opacity laws (visibility impair ment) and the rcqmrcmems of the Clean Air Act. The following are measures that local agCDCies may have already impJcmented as rcquircmeuts for dust control from contractotS: : • CQn5trnction & Cmior Pcrroil$ Require provisions for dust conttol plans; • {macjty Emission Limits: Enforce compliance with Califootla air pollution control laws;• • Iom;a.sc oyga,11 c;nfQ[CQJJmt ·actlxirics Prlcrity given to cases involving citizen complaints; • Maintain Eefd Am,lirarion Rc;cords: Require rccads of dust coatrol measures trom coouactor. • Stmnwatcr PoHntion Px:rnmtion Pfan• (SWPPP): Integrate dust control m~ into SWPPP. Pmt ContmJ Prac;w;Q Dust cootrol BMP's gC2JCr.llly stlbi1ize exposed surfaces and minirorn: activities that suspend« track dust particles. Table ESC21.l shows which Dost Control BMPs apply to site coodmoos which cause dust. Fa heavily traveled and . areas. wet suppn:ssioo (watering). chemical dust supp-essioo. gravel or~ surfacing. trmpcrny gravel istn:ICtic. ,n emr.mccs. cqnip0¢Dt ~ areas. and haul truck co~ can be employed as dust cootroJ appliC31ioos. Perm.anent cr r.empocmy vcgetadon and mulching and sand f~ can be employed for areas of oocasiooal or~ coo structioa traffic. Preventive measw:cs would include.minimizing surf.ace areas to be distmbcd. limiting oa-site vebidc traffic to 15 miles per boot. and cootto~g the number and activity of vehicles oo a site at any given time. Many of the reasooably available cootrol measures fa-controlling dust fran coostructioo sires can also be implemented as BMPs fer st.am water pollutioa prevcntioo. Those BMPs indudc:. • Pave. vegetate. cr chcmially stabilize access points where unpaved traffic smf.ao:s adjoin paved roads. • Provide covers for haul tmcks transponing maraials lhat contribute to dust. • • Provide for 'Wet suppcssivn or cbcmicaJ stabili7.atioo of exposed soils. • Providc for npi!i ~ of sediments deposited on paved roads. Furnish stabilized constroctioo road entrances and vehicle wash down areas. • Stabiliz.c unpaved haul roads. paiting and staging ~ Reduce speed and trips on unpaved roads. • Implement dust control measures fcx material stockpiles. • Prevent dzainagc of scrlimcnt .laden stonn water onto paved surfaces. • St.abilhe abaodooed coostmaioo sites using vegetation or chemical stabilization methods.- • Limit the amount ol ~ disturbed by clearing and earth moving opcraiions by scheduling these activities in phases. For the cbanical stabila.atioo. there are many products available foc chemically stabilizing gravel roodways and sux:k· piles. The types of cbcmicaJs available and recommendatioos for their use are tlbuJated in Table ESC 21~ Ccmmonly Used Chemicals for Dust Control • ESC21 Construction Handbook S -26 March, 1993 r-In-add_i_tion._tb_crc_arc __ man-yf_i_A_d_B~-Ps-it_i:- 0 -:-_ l-~-':-- 1 tb--~-r han_m_:-~-io_k "-~---pro-:-:-s-~_c_:..,..tr-~-'-~nc-J-ud_in_g: ____ _,L • Seeding and Plantings (ESC 10) • • MuJcbing (ESC 11) . • Coostruaioo Road Stabilization (ESC 23) • Stabilizea Construction EottaDCCS (ESC 24) l,imitatiom • • Oil ll'cau:d subgr3dc:s sbouJd not be used because the oil may·migraic into drainagcways and/or seep into tbc soil. CbcmkaUy trcarcd s~ may make the soil water"rcpellimt. interfering wilb loag-tcmi intUtration. and the vegetatioa/rc•YCgctlDOG ~ the sill; Some cbemical dust supptemDlS may be subject to f.rccrlng and may contabl sohats and sbouJd be .baDdJed propc.rly. • • A.spbalt. as a muJc.b taick or cbemicai muJcb. requites a 24 bout curing time 10 avoid adbcrcncc to equipment. wcxm shoes. etc. Applkadoa should be limited~ asphalt surfacing may eventually migrate into tbc drainage ·sysU:m. In canpactcd areas. watering and otber liquid-dust control measures may waslt wU,rycnt or ocbcr constiwcnts into the drainage System. REFERENCES Best M'3Dagcmcnt Practices and Erosion Control Manual for ConstrUCtioo Sit.es. Flood Control District of Maricopa County, Arizona. September 1992. • Califomia Air Pollutial Control Laws, Califomia Air Resources Board. 1992. CalTram, Stmdard Specificatioos, Scrooos 10, "1>ust Cootrol"; Section 17, -Watering':; aD!C1 Section 18, .. Dust Pama-· tiYc". ff. Prospects for Attlining the State Ambient Air Quality Standards for Suspended Paniculatc Matter (PMlO), Visibility Reducing Partidcs. Sulfates, Le3d, and Hydrogc:n Sulfide. C'.aliComia Air Rc:soura:s Board. April 1991. Saaamcnto County, W-.mterization Ordinance ct Dust ~ontrol Ordinance {example). USDA Soil Conseryanoo Service. --ouidcs foc Erosion and Sedimc:nt Control". \ ESC21 . I ,. el t - Construction Handbook 5. 21 Mar-ch, 1993 • Q ~ q t: n P-. 0 ::, ~ ::, C. [ U'I ~ .. SlTE CONDITION Disturbed Arens nof Subject to Traffic Disturbed Arens ... Subject to Traffic Material Stock Pile S tnbiliuillon Dcmolillon Clcari ng/Excavatlon Truck Truffle on UnpavC() RoruJs Mud/Dirt Carry-Out \ • • TADLE ESC 21.1 DUST CONTROL ·UMPs FOR GIVEN SITE CONDITIONS DUST CONTROi. llllvll~ Tcmpc11W)' Cn&vd Mlnlml,r w,, Chcmlclll • Crave& ur Cunstrucl11111 Huul t-:1.1r111 Pcn11a11ct1l SupptnsllJ(I Oust Aspllalt S11nd Entran,·tt/F.qulphltlll Tn11:k of An•u Vtittallun Mukhlnc (Watcrlnc) Supprmlnn SUrf1M.i11g . Ftlll:ts Wash llo\11' C11nN lll.1tuh1•d ' X X X X X X X X X X X X X X X X X X X X ...... , X X X X X X VI TABLE ESC.21.2 COMM~NLV USED CHEMICALS FO~ DUST CONTROL -SALTS ORGANIC, NON PETROLEUM-BASED I CHEMICAL TYPES • Calcium Chloride1 • Culciu1i1 Lignosulfonule • Magnesium Chl<>rillc • Sodium Lignnsulfunulc • Natural Brines • Ammonium Lignusulfonale • .. LIMITATIONS Can lose effectiveness in dry Nol nftecled hy dry weather periods wilh low humidity. und low humidily. Lc11ched Leaches from road in hcuvy rain from road In heavy ·ruin_ if not suflklcnlly cured. Not recommended for gravel road 8est pcrformum:c on gravel surfaces wilh low fines. roads with high sµrf ucc fines Recommended 10-20% fines. (10-39%) und dense compact s~rfuce wilh luosc gravel. COMMENTS Calcium Chlori~e is popular. May lncffccUve un gravel surfaces become slippery when wet on low in fines. May become gravel surfnces with high fines. slippery when wet on gravel surfaces with high fines contcnr. 1 Motor oils and oil trcnbne111s ure not recommended due to ndvcrsc effects on pin.Ill life am.I groundwater. 1 Not recommended due IQ udvcrsc effcc&s on plnm lite . • • -PETROLEUM BASED PRODUCTS' • Bunker Oil • Asplmll Pr i mt:r • Emulsilicd Asphul1 Gcncrully cffcc1ivc rcgurdlc:;s uf climulii: condiliuns may polhnlc in wee wca1hcr. Best performance on gravel roads wilh 5-10% lines. Creates a hun.lcncll crust. BMP: TEMPORARY STREAM CROSSING GENERAL DESCRIPTION A temporary aLn:SS stream crossing is a temporary culvert. ford or bridge placed aaoss a wau:rway ro provide access fer constroctioo purposes foc a period of Jess than one ye3r. Temporary access crossings are not intended to be used to maintain traffic foe the general public. - SUITABLE APPLICATIONS Temporary stream crossings should be inslalled at all dcsigruued aossings of perennial and intermittent stteazns on the construction site. as well as for dry channels which may be significantly eroded by construction traffic. • INSf ALLATI0N/APP~ICATION CRITERIA knowledge of stream flows and soil strength and should be designed under the • ·of a California rcgislc:red engineer with knowledge of both hydraulics and • loading requirements for~ REQUIREMENTS • Maintenance Inspect weekly and a&r each significant rainfall. including assessment of foundations. -Periodically remove silt from aossings. Replace lost aggregate from inlets and outlets of culverts. • Cost -CalTrans Construction Cost Index for temJ;X)rary bridge crossing is S45-S95 per square feet. LIMITATIONS . • May be an expensive for a tempoouy improvemenL · • Requires other BMPs to minimize soil disturbance during installation and removal. • Fords should only be used in dty weather. Construction Handbook 5-30 Objectives ~ Contain Wasta inimiza Disturbsd Arsa bilia Disturbsd Are <lfptact SlopwCha~ Cantrol Sit, Perimst11t Centro/ lnt,mal Erosion Targeted Pollutants • Sediment -0 Nutrients 0 Toxic Materials Q Oil& Grebe 0 Floatable MattJria,- 0 Other Construction Waste • Uk#ytoHIV• Slgn/llcant lmp«:t · 0 Probab,. Low or Un.known lmpM:t Implementation Requirements Q Capital Cosu 0 O&MC<uts Q Mainten1111C11 0 Training 0 Sultabillty for Slopu>5% • High O Low ESC22 Be Man Practic March, 1993 t------A_d_d_it1_·o_n_a_l _ln_fo_r_·m_a_t __ io_n_-_-_•e_m_po_ra_ry_s_tre_a_m_c_ro_s_s_in_g ___ __,/ · A temporary access sttc:llil crossing is a culvert. ford. or bridge pl.aced across a waterWay ro provide access for coosuuc-....._\ tioo for a period of less than one year. Temporary access crossing$ are not intended robe used for general public traffic. The purpose of this BMP is to provide a safe. erosion-free access across a stream for construction equipmenL Minimum standards and specuJCations for the design. cons_truction. main1Cn3:Dce. :md removal oC the sttuaurc should be established by an engineer registered in California. Temporary stream crossings may be necessary to prevent consrructioa equip ment from causing erosion of the stream and traeking sediment and other p,ollutants into the stream. Temporary stre3m crossings arc used as access points to construction sires when other derour routes may be too Jong or burdensome for lbc consttUCtion equipmenL Often heavy construction equipment must aoss streams or accks. and detour routCS may impose too many constraints such.as being 100 naaow or poor soil strength for the equipment Joad. ings. Additionally. lbc conuaaor may find a temporary sttcam crossing more economical for light-duty vehicles to use. for frequent ~gs. and may have less environmental impact than consuuctioa oC a tcmpOmy access road. IostafJarion/An,glirntion . . Temporary access stte21D aossings should be sized and installed according ro tbe drainage design aiteria of~ local municipality. Design criteria should be based on standard engineering practices f<X' culvcn design with provisions for minimizing impacts on disturbed crossing areas. Three types of temporary access sttcam aossings may be considered: Tt:mE)l;traa A<:a:$S Culycrt: A temporary access culvert is effective in coauolling erosion but will cause erosion during inctallarion. and removal. A temporary culvert can be easily consttUCted and allows for heavy equipment loads. Icmpurai y Access foot: A temporary access ford provides little sediment and erosion cooirol and is inc:,ffectivc in cootrolling erosion in lbc stream cbannc1. A temporary ford is the least expensive stream aossing and allows for •· maximum load limits. It also oCCcrs very low mainremncc. Fords arc more app-op.riatc during the dl)' season and in arid areas of California. • Temporary Access Brld:e; With the appropriate materials and designs. a temporary access mdge causes tbc least • erosion of the stream cbanDc1 aossing during its installation ~ removal. During lbc long summer i:oastruction season in Califomia. rainfall is inftcquent and many streams arc dry. Under lbcse cooditions. a temporary access ford may be sufficient. A ford is noc appropriaJ.c if construction will continue lbrough tbc • winter rainy season. if summer thundcrstonns arc likely, or if the stream flows during most of the year. Temporary • access culvcns and bridges should then be coosidercd and. if used. should be sized IQ pass a significant design Slonll, [L~ at least a 10.year storm). The tempcary stream crossing should be proceaed against erosion. both to prevent excessive sedimentation in the su-cam and to prevent washout of the crossing (and, cooscquently, costly consuuction delays). I.imitati<lns Special care must be taken wbeo aossing an environmentally sensitive waterWay. Oils or other potentially hazardous materials sball not be used for surface trcalments. Street ru~off should. not be allowed to spill down aossing sideslopcs. Construction in wa1CrCOUrseS should be at or near the oatural elevation of lbc sucam bed to prevent any potential flooding upstream of the ~g. In addition. the following limitations may apply: ESC22 Construction Handbook 5-31 March, 1993 Additional Information -Temporary Stream Crossing May be expensive temporary cost • Increased soil disturbance upon installation and removal • T cillpOl3Q calverts need regular maintenance and can cause erosion if the culven becomes dogged. • A tempOrarY ford offers little if any erosion control in flowing saeams and can often make erosion worse. Fords should ooly be used in the dry season on dty sueams. Construction in waierways is subject ro additional permit requirementS. Contact the local municipal storm warer agency for-additional inf onnation. REFERENCES Bank and Shore Protection., Carr.rans -November 1970. Best Management Practices and Erosion Control Manual for Consuuction Sir.es. Flood Control District of Maricopa Cotmcy, Arizona. September. 1992. ESC22 Construction Handbook 5 -32 March,· 1993 ,__ ____ A_d_d_in_·_on_a_f_l_n_fo_r_m_a_t_io_n_-_r_e_m_po_ra_ry_str_ea_m_c_r_~_s_in_g ___ -lL -AGGREGATE FILL AGGREGATE FlLb 2"' MIN . • ...-.==-. .. ~~~~-~ .. .. ------•• :::::"•• •h•h•••• ··:·-·-·-- •••••• ~-----..;...--... ~ • '-FLTER CLOTH HIGH FLOW AREA ~-s -····-:: V=" □---~-- AGGREGA T \ r FR.. TER CLOT . AGGREGAT-.~:~""c):,.-. :TER CLO FLL • FILL FLAT BANKS $TEEP BANKS AGGREGATE'. HIGH FLOW AREA ----s1· ·--..:. --~ -• =:::.. 0 ·.-0 ·:;; 0 ==-··· • . . -..::-= . W.-·-~---- • !ff:. a : •• --=~-/E:. C • FL TER CLOTH • FL TER CLOTH. M\JLTJPLE PIPES MVJ..W.E PJPES· GGREGATE FILL PER .A.G. SPECIFlCA TIONS / -~1tf. ltf'"'r,,· , --.::::::: ~ • ~ -✓-~ ~ ~ -~- ·----~ ~~OTH TEMPORARY ACCESS CULVERT ... . ESC22 Construction Handbook 5-33 Marcht 1993 1• I I -·- Additional Information -Temporary Stream Crossing - AGOREGA TE BED FLTER CLOTH AGGREGATE APPROACH 5 , l MAXlMUM. SLOPE ON ROAD SURF ACE FLOW DIVERTED BY SWALE , . .:._:_ . . .. . . ~~~-.::..:.::::..:_ --"'---' -=::::- WATER SURF ACE FLOW DIVERTED\ BY SWALE -. \ FLTER a.oTH TEMPORARY ACCESS FORQ ESC22 Construction Handbook S -34 March, 1.993 I ! i BMP: CONSTRUCTION ROAD STABILIZATION GENERAL DF.SCRIPTION .AQ:css~subdivisioaroads.parldngarcas.andothcron-sitcvehicJcuansportationroutcs sbouk1 be stabilizccl irnrnc:rliately alt.ct ~g.aod frequently .mainraiPc:d to prevent crosioa aod control dust. .SUIT ABLE APPLICATIONS • Tcmpor31y coosuuetion ~fie. • Phased coosuuctioa· prqccts and off-site road access. • Detour roads. • COPSttUaioo during wet weather. INSTALLATION/APPLICATION CRITERIA • Road should follow topOgrapbic contours to ~ erosion of the roadway. • "Tbc roadway slope should not exceed IS percent.· • Gavel roads should be a minimum 4-inch thick. 2-3 inch coarse aggregate base applied· irnrncdiatcly aft.ct grading. oc as recommended by soils engineer. • Chemical stabilizers oc water are usually required on gravel oc dirt roads to prevent dust (sec.Dust Control ESC 21). REQUIREMENTS • • Maintenance Periodically apply additional aggregate on. gravel roads. -Active dirt CODSttUCtioa roads arc canmonly watered three or more times per day during the dry season. -Inspect weekly, and alter each rain. -R.cpajr any eroded areas irnrncrliatcly. Cost • Gravel consuuctioa roads arc moderately expensive. but cost is often balan~ by rcductioos in COOSUUCtion delay. No additional cosu for dustcootrol on coDStnJCtioo roads should be required above that necckd to meet Joca1 air quality requirements. LIMITATIONS • The roadway must be removed a-paved when coosrructioo is ~pletc. • Ccnain cbcmical stabillzatioo methods may cause storm water or soil pollution and -sbouk! DOt be used (sec Dust Control ESC 21). • Management of construction traffic is subject to air quality control measures. Contact the local air quality management agency. Construction ·Handbook 5-35 Objectives ~•k11ping Pr,c~ Contain Wast. ~ <:liia!.,mizt Disturb«J ~ <::!§iiH:u Disturb«/ A~ . <E@.,ct Slo,,.s!Chann"'jjJ::, Control Sit, Ptrim,w Control lnt,ma/ Erosion Targeted Pollutants • Sediment 0 Nutrfenu 0 Toxic Materws 0 Oil& Gruse 0 Floatab/e Material$ 0 Other Construr:tlon Wute • UblytoHaw Slgnllkant lmp,tct 0 ProbabJ. Low or :• Unknown Impact -,.,-. ..... lmplemantatlon Requirements Q CapiulCO$U Q O&UCo.sts Q Maintenance 0 Training g Suitability for S/ope$>5% • High O Low ESC23 Be Ma Practic M~1993 ' • Additional Information -Construction Road Stabilization which are graded for consuuaion vehicle transport and parxing pwposes ~ espeaalJy susceptible co erosion and The exposed soil surface is continually disturbed. leaving no oppornmity fdJ vegetative stabilization. Sucb areas also tend to colleq and transport runoff Waters along_ their surfaces. During wet wear.her. they often become muddy quagmires which generate significant quantities of sediment tbat may pollute nearby Stte3ll1S or be transported off-site on the wbccJs of consuucti.oo vebides. Dirt roads can become so unstable during wet weather that they are virtually unusable. ·, Efftdc:nt constroetion road stabilization not only reduces on-sire erosion but can significantly speed on-si1e work. avoid instane.cS o( immobilized machinery and delivery vebides. and generally improve sire efficiency and working conditions during adverse wcacber. TDsraJiarion/Agpfkation Criteria Where feasible. alr.ernativc roures-sbould be made for construetion lraffic; one for use in~ condition. the other for wet cooditions which incorpcnte the measures listed foe this BMP. Pctmaocnt roads and parking are.as should be paved as soon as possibJc afra grading. As ~ alternative where coostruetion will be phased. the early application of gravel or chemical stabilization may solve potential erosion and stability problems. Temporary gravel roadway should be considered during the rainy season a:nd/or_on slopes greater than 5 percent. When gravel road is ~dc:d. apply a minimum 4-inch course of 2 to 4-incb crushed rocJc. gravel base. or crushed surfacing -!me course immediately after grading ortbe completion of utility installation within therigbt-of•way. Chemical Stabilization may also be used upon compacted native sub-grade (sec the Dust Control BMP ESC 21). These chemical controls shouJd be applied per the manufacturer• s directions. Temporary roads should follow tbe contour of the narural tarain to the maximum extent ~bJc. Slope should noc exceed percent. Roadways should be carefully graded to drain transVerscly. Provide drainageswalcsoo each skfc oltbc roadway case of a aowncd·seaion. or one skfc in the case of super-clevat.ed section. Sipiplc gravel berms without a trench can be used. -, .Installed inletS should be protected to prevent sediment-laden watcr from entering the storm sewer system (sec "'Storm Drain In1ct Protection" ESC 54). REFERENCES Best Management Practices and Erosion Control Mmlual for Construction Sites. Flood Control District of Maricopa County, Arizooa. September 1992. Manual of Standards of Erosion and Sediment Control Measures. Association of Bay Arca Governments. Jund 981. Stormwater Management Water.for the Puget Sound Basin. Washington StaIC Deparuncnt of Ecology, The Technical Manual· February 1992. Public.woo I 91-15. Vu-_ginia Erosion and Sedimentation Conaol Handboolc. Vu-ginia Department of Consernwon and Reaearion. Division of Soil and Wau:r Coosenratioo, 1991. War.er Quality Management Plan for the Lake Tahoe Region. Volume n. Handbook of Management Practices. Tahoe Regiooal Planning Agency -November 1988. ESC23 Construction Handbook 5 -36 Marclt. 1993 BMP: STABILIZED CONSTRUCTION ENTRANCE II GENERAL D~CJUPTION 'Ibc commx:uoa cnuancc praaicc is a SW>iliud pad of aggrcgarc UDdcrJain with filter cJocb. Jocated at any point where traffic will be emcring ot leaving a coasauaial sire 10 or from a public rig.bt-<>l-way, street. alley, sidcwalkot parting area. Stal:eJizing tbc • . caisuuctioa cnuancc sig:nifJCaDdy reduces ·the amount of sediment (dust. mud) tracked. off'-site, especially if a washr.lck mcapora1Cd fot removing caked 011 serlirncpr, • SUITABLE APPLICATIONS • All points of caisuuaioa ingress and egress. • Unpaved areas wbcrc smirnmt tr3Cking ocxms from site ooto paved roads. INSTALLATION/APPLICATION CRlTER.IA . • Comuuctoa level ground whcte possible. . Objectives ff C:::Couut..,,;ng~ ~- Cctain Wat. ·!"' .... ·•·. <:6L_nimiaDWurb«i~ c@,i11a o&turb«I@ Prot»ct SI~ <Z;ii@SJt. Pttim,t4jl> Control lntMnai Etmlon -~ Targ.ted PoUutants .. Q s«llmMt Q Nutmnt. ~ Ton: lhteriu Q 0//AGl'NH. 0 Floatt,bJe.MM.,,_ 0 Otw CoMtnlctlon Wat• ·• UD/yioll-. Sls,nltbnt lmpc 0 ·Lowor • • Stooes sbouJd bet3 inchc:s. • • • ~. • .Mini:mnm dcptb ·:Stooes sbouJd be 6 iDcbcs ot as rccommendcd by ·soils e2:1~-• .. ..,":.-:.-:,-:,-:,-:,-:.,-:.,-:,.-:,. • u:agm sbouJd be fOO( minimum. and JO-foot minimum width. • ltrtpect • Provide ample turning radii~ part of CDtraDCC. • .REQUIREMENTS • Mainu:naace • -Inspc:a monthly and afta" each rainfall.· . -Rq,lac:c gravel marcrial when surface voids arc visible. -Ranovc all scrluncnt deposited oo paved roadways within 24 hours. -Rt.move gr.nc.t and filter fabric at amplctioo of coostructioa • • Cost A vmgc annual Q:>St for imtallatioa and maiotenaocc (Source: EPA. 1992) :. Wilbout Wm Rock: Sl500 each. -Willi Wash Rock: S2200 each. LIMITATIONS lm~n Requirements Q Caph/Com 0 OAJ/eo.ts 0 Melnt•rumc:. 0 Tflllnlng 0 Su/t,ab//lty for SlopM>5" • Requires periodic top ~, with additiooal stoDcs. • Should be used in conjuoaioo with strceuwccping oa adjacent public right-of-way. I • High . 0 Low I : ti . Construction Handbook 5-37 ESC24 Be Man Practf Mm-ch, 1993 Additional Information -Stabilized Construction Entrance t.abilized construction entrance is a pad of aggregate underlain with filter clocl?~ocat.ed at any point where traffic will entering or leaving a construction site to or from a public right-of-way, street. alley. sidewalk or parking area. The purpose of a stabilized construction entrance is 10 reduce or eliminate the tracking of sediment onto public rights-of-way or streets. Reducillg trackout of sediments and other pollutants onto paved roads helps prevent deposition of sediments into local storm drains and production of airborne dust. Where traffic will be entering oc leaving. a stabilized constroctioo entrance should be used at all points of construction ingress and egress.. NPDES permits require that appropriate measures be implemented to prevent tracl::out of sediments ooto paved roadways. which is a significant source of sedimen~ derived from mud and dirt carryout from the unpaved roads and construaioo sites. Stabilized coostroaion entrances are moderately effective in removing sro_imeor from eqoipnent leaving a eoostruction site. The entranee sbouJd be build on the Jevel grouod. Advantages of the Stabilized Construction Enrr.mce is that it docs remove some sediment from equipment and serves to cbaooel coostructioo uaffic in and out of the site at specified Jocarioos. Efficiency is greatly increased when a wasbirig rack is indudcd as put of a stabilized construction c:n~ The aggregate for a stlbilizcd consiruction entrance aprons should be 1 to 3 inches in size. washed. well-graded gravel or aushed rock. Minimum aproo dunensioos of 30 ft. x 50 ft. and 6 inches deep is adequate for two-way ingress/egress trufic. • The entrance must be properly graded to prevent runoff from leaving the consttuetion sire. When wash areas are~ washing is dooe on a reinforced cooaete pad ('if significant washing is PCa:-ssary) or in an are.a stabilized with crusbed stone which drains into a properly coostrocted sediment trap or basin (ESC 55 and 56). Sediment bauierl arc provided to prevent sediments from entering into the stormwater sewer system, di~ or waterway. • Construct on level grouod. • Stabilized coostruction entrances are ra.tbcr expensive to construct and when a wash rack is included. :1 semment trap of some kind must also be provided to collcctwatj} Wala" runoff. • Rcqoircs periodic top dressing with additional stones. • Should be used-in conjunction with street sweeping on adjacent public-right-0f-way. REFERENCES Best Management Practices and F.rosion Control Manual for Construction Sites. Flood Control District of Maricopa County. Arizooa. Sepecmber 1992. Manual of Standards of Erosion and Sediment Control Measures, A ssociatioo of Bay Area Governments. June 1981. • Proposed Guidance Specifying Management Measures for Som of Nonpoint Pollution in Coastal Wat.en. Wen: Group Womng Paper, USEP~ April, 1992. • Stormwater Management Water for the Puget Sound Basin. W~gtoo State Department of Ecology, The Tcdmical ~ • February 1992. Publicatioo # 91 • 15. · VJrginia Eroooa and Sedimentation Coorrol .Haodbook. Virginia Department of Cooservatioo and Rectt.ation. Division of Soil and Water Conservati~ 1991. atcr Quality Management Plan for the Lake Tahoe Region. Volume II. Handbook of Management ESC24 • Tahoe Regional Planning Agency -November 1988. Construction Handbook 5 -38 Mar~ 1993 ,_ ___ A_d_d_i_ti_o_na_l_f_nf_o_rm_a_ti_o_n_-_s_ta_bi_liz_e_d_c_on_s_tru_c..,...ti_on_En_tra_n_c_e __ ~L / / / / orTCH TO CARRY WASH WATER TO SEDIMENT BASIN OR TRAP / I. \_WASH RACK VEHCLELaGTH REJNFORCED·CONCRETE CHANNEUOITCH BOTTOM / FL TER· F ABRJC r TO 3• COARSE AGGREGATE WASH RACK < SCHEMATIC> STABLIZEQ CONSTRUCTION EfilBANCf: -, . I ESC24 ~======================~====.! Comtruction Hand-book S-39 March, 1993 • le I I I I I 8 MP: EARTH DIKE • Objectives Housabeping Practicas ~ l,llnimiz• Disturbed Aran Stabilia Di3turbad Arou <€_t.ct SlopwChani;;jp <C_@rol Sit• Pllim.°]il::> <:€.,ntro1 Intimal~ 1.,_ ___________________________ ..,... ________ _, GENERAL DESCRIPTION The iemporary earth dike is a temporary bean orridge of compacted soil. used to divert runoff or cbaoncl water to a desired location. SUITABLE APPLICATIONS - E.anh dikes are typically used to divert concentrated runoff through distw"bed areas into another BMP (e.~ sediment basins), to divert runoff away from distwbed oc unstable slopes. to divcn. runoff from off-site and undisturbed -areas around disturbed areas. and as a comainmcnt focconsttuction materials and wasres. The dikes should remain in place until the disturbed areas are permanently stabilized. 1bc dikes must be on-site and must safely convey anticipated flood flows. ALLATION/APPLICATION CRITERIA All dikes should be compacted by earth-moving cquipmenL All dikes sbouJd have positive drainage to a siabilizcd outlet. • Top width may be wider and side slopes may be flatter at crossings for consttuaion traffic.. • Dim sbould direct sediment-laden nmoff into a scrliment tr3pp~g device. • -• • Dikes should be stabilized with vegetation. chemicals. or physical devices. REQUIREMENTS • Mainren.mcc Inspect periodically and after every significant rainfall; repair as necessary. • Cost Costranges fromS15 toS55 perfootfocboth canbwoa:andstabilizationand depends oo availability of mataiaf. site ~ and access. LIMITATIONS • Targeted Pollutants • Sediment 0 Nutrients Q Toxic Materials Q Oil& Gruse 0 Floatab/11 U.teriala Q ·other Construction Waat• • Ubly to H.,,. Slgn//k:t,nt Impact 0 Probabl. Law or ~ Impact Implementation Requirements Q Capital Costs 0 O&MCosts Q Maintenance 0 Training Q Suitability for -Slopes >5" . Dikes should not bc_used lot drainage areas greater than 10 acres. ocalong slopes greater than lOpercenL ForlargerarcasmorcpcrmancntdrainageSUUCtUreSshouldbcbuilL All drainage structures should be built in compliance with local municipal rcq~rs. I • High 0 Law "' Earth dm:s may create more disturbed area on site and become barriers to construction equipmcnL • E.anb dikes mnst be stabilized immediately, which adds cost and maintenance concans. • Divcned storm water may ~ downstream .flood damage. • Dib:s should not be cpnsuucted of soils which may tc easily eroded. Regrading the site to remove the dil:e may add additional cost. Construction Handbook 5 -40 ESC30 Be Man Practlc MMCb, 1993 . Additiona-f lnfo.rmation -Earth Dike Tbe temporary eanh dike is a bam or ridge of ccmpaoo:i soil. located in sucb a IIl3DDCTas to diven storm war.er to a sediment~.•'.:">• trapping device oc stabilized oudet. thereby reducing cbe poo:nti.al for erosion and offsitc sedimen_tation. Earth dikes can al /' •• : .. be used to diven runoff from off-site and from undistwted areas away from disturbed~ and to divert sheet flows away from unprotected slopes. An e.arib dike docs not itself control erosion or remove sediment from nmoff; a dike prevents erosion by directing runoff to .an erosion cootrol device such·as a sei:Umen~ trap orclircctiog runoff away from an.erodible area_ Temporary diversion dikes . should not adversely impaa adjacent properties and must·conform to local floodplain management regulations. and should not be used in areas with slopes steeper than 10%. • The advantages of tbc tempcxary earth dike include the ability 10 bandJc flows from large drainage areas. • Once stlbilized. earth dikes require relatively little maintenance. Additiooally, tbe ear1h dikes arc relatively inexpensive to install since tbc soil material required foc construction may be available on-sire. and can be construct.ed as pan of me inmal grading oper.ltioos. wbilc tbc equipment is on-site. • Uses on-site materials. lo:staltadon/AJmli<:arion Criteria Tempocaiycartbmkesarcapraaica.LincxpensiveBMPusedtodivenstormwaternmoff. Tempor.uydiversiondil:essbouJd be installed in tbe following "'4!DDer: 1. All dikes should be compacttd by earth-moving equipmenL 2 All dikes should have positive drainage to an outJet. . 3. All dikes should have 2:1 side slopes, 18 iDcbes minimum height. and a m.inimmn top width of 24 incbes. Top width may be wider and side slopes may be .flatter at amsmgs· foc CODSttUCtion traffic. • 4. The outlet from tbc earth dike must fuoaioo with a minimum of erosion. Runoff should be cooveycd 10 :a sediment U3ppiog dcviccspdl~asedimcnttrap (ESC 55).orsedi,;oent basin (ESC 56)wben either the dike channel rxthe drainage .... arca·above tbc dl:t.c arc not adequately stabilized. . • S. Temporary st3biJizadoo may be aducvcd using seed and muldiiog for slopes less than SCJJ. and citherrip-rap or sod for slopesincxccssol.S$. In-eitbcrc.ase,stabilizatioooftbeeartbdikcsbouldbccompletedimmcdiat.elyafterconsttuctioo CX' prior 10 tbe first ram. 6. If rip-ap is used lO Slabilizc the channel fonncd·aJong tbe toe of the~ the following typical specifications apply: CHANNEL RIPRAP GRADE STABILIZATION 0S-1.0$ 4"Rock 1.1-2.0$ 6"' Rock 2.1-4.0$ 8"Rock 4.1-5.0$ 8-lT Rip.ap 7. The_ stoac riJ;Dp, rccycfcd conacte. etc. usal foc stabilizatioo should be pressed into the soil with consuuctioa eqmpmau. 8. Filter doth may be used to cover dikes in use for long periods. 9. CoostnJaioo activity on the canh dike should be kept to a mjnjmnm. -REFERENCF.S Best Managcmeot Pncticcs and Erosion Control Manual for Coostrucuon Sites. Flood Control Di,strict of Maricopa County, Arizooa. September 1m. '"Draft -Sedimentation and Erosion CootroL AIJ Inventory of Cwrcnt Practi~". U.S.E.P .A. April. 1990. ESC30 Comtruction Handbook 5 -41 Mar~ 1993 / Additional Information -Earth Dike R:;:x1 Sediment ~ontrol Handbook. SJ. Goldman. K. Jackson. T.A. Bursey.sky, P .E_ McGraw Hill Boole Manual of Standards o(Erosion.and Sediment Control Measures. Assodatioo of Bay Area Governments. June 1981. Wattr Quality Management Plan for tbe Lake Tahoe Regio~ Volume II. Handboo~ of Managemem Practices. Tahoe Regional Ptanning Agency -November 1988. • ESC30 Construction Handbook Mu-di, 1993 Additional Information -Earth Dike l l-----, -----------t•A_•,"\ I ,. COMPACTED ALL 2: I SLOPE OR FLATTER. BOTH SIDES - 8 i I I STABIUZA TION AS REQUIRED ON STEEP SLOPES EXCAVATE TO PROVlDE REQUIRED FLOW WIDTH AT FLOW DEPTH REOU1REMENTS BASED ON UPS~EAM DRAINAGE AREA DIKE t DIKE 2 (5 ACRES OR LESS) (5-10 ACRES> A-DIKE HEIGHT 1a-36"' 8-DIKE WIDTH 24-36~ C-FLOW WIDTH 4' . 6.' 0-FLOW DEPTH a-. ts· • TEMPORARY PIYEBSIQN DIKE ESC30 ~=={==' ======~~~~·· ~·• Comtruction Handbook S • 43 March, 1993 BMP: TEMPORARY DRAINS AND SWALES GENERAL D~CRIPTION Tcmporaiy drains and swales arc used to divert off-site runoff around the coostruction site. divcn runoff from stabilized areas around disturt,ed areas. and ~ runoff into sediment basins or traps. SUIT ABLE APPLICATIONS Temporary drains and swaies arc apJ%0priatc for diverting any upslope runoff around unstabilizcd or disturbed areas of the consuuction site: • Prevent slope failures. • Prevent damage lO adjacent property. • Prevents erosion and transport of sediments into water ways. • Increases the potential for infiltration. • Diverts sedimcnt...Jaden runoff into sl!diment basins or traps. STALLArfON/APPUCATION CRIIERIA Temporary drainage swales will effectively convey runoff and avoid erosion if built properly: • Size temporary drainage swales using local drainage design crilC:ria. • A JVD13oent drainage channel must be designed by a professional engineer (~ tbe --lcx::al drainage design criteria for~ design). • At a mmimum. the drain/swalc should confonn ro predcvclopmcilt drainage patterns and capacities. • Construct tbe drain/swalc with an uninrermpted. positive grade to a stabilized outlet.. • Provide erosion profCCtion or energy dissipation measures if the flow out of the drain or swale can n:acb an erosive velocity. REQUIREMENTS • Maint.cnan~ Inspect weekly and after each Iain. Repair any erosion immediatcly. Objectives Hou.s,kseping Practicas Contain Wasta Minimiu Disturb,<! Ar,.u Stab/Un Disturbed Atu.s @act Slop.s/Chm"'n;Jp @_ntrol Sit, PerimiJip <::Cifr,trol Jnt,maJ Erosig,a> Targeted Pollutants • Sediment 0 Nutn'ent$ 0 Toxic Materials 0 Oil & Gresse 0 FloatJJb/e Material$ 0 OthtJr Construction W.ute • Ubly to Hav• Slgnltkant Impact ·o Probeble Low or UnJcnown Impact • Implementation Requirements Q Capita/ CO$t$ 0 O&MCosts 0 Malntenanca 0 Training g Suhb11ity for Slopu>5% • Remove sediment which builds up in the swale and restricts its flow capacity. • Cost f. High O Low -The cost of a drainage swalc increases with drainage area and slope. Typical. swales for controlling int.anal crosioo are inexpeosiv~ LIMITATIONS • Temporary drains and swales or any ocher divers.ion of runoff should not adversely impact upsttcam or downstream properties. Temporary drains and swales must conform to local floodplain management require-· mcnts. Construction Hand book 5 -44 ESC31 Be Ma Practic March~ 1993 Additional Information -Temporary Drains and Swales • Slopes that arc rornled during cut and fill operations should be pnxected from erosion by runoff. A combination of ~ • • --•• ~-:· u:mporary drainage swale and an earth dike (see ESC30) at the· rop of a slope C3I1 safely divert runoff ro a location wbetc. · can safely be brought to. the bottom of the slope (see Pipe Slope _Drain ESC32). A combination dike and swale is easily coosuucted by a single pass of a bulldozer or grader and compacted by. a secood pass of tbc tracb or wheels over the ridge. • Diversioo struaurcs sbouJd be installed when tbe site is initially graded. and remain in .pJ.acc until post-construction BMPs arc installed and/or the slopes are stabiliz.ed. Divcrsioo practices cooccntrate tbe volume of surf.ace runoft inaeasing its velocity and erosive force. Thus, tbe flow oat oCtbc dram orswalemust bcdireacdonroastabilizcdareaoc.mro agradcstabiliz.atioa str1JCtl:UC. A swalcsbould be stabilized using vegetation. chemical treatment, rock rip-rap. matting, a' otbcrpbysical means o( mbilization. if significant erosion will occur. Ally drain or swalc which caiveys sediment-laden runoff must be divened into a sediment basin or trap before it is discharged from the site. • IoscatJaricm/AmtUrariqn Cdtcxia Diversioo drains orswales arc oaly effective if they arc properly installed. Swales arc more effective than dikes because they tend to be more stable. The combination of a swale with a dike on the downhill side is the most cost-effective diversion. - Standard engineering design aitcri.a for small open channel anddosed conveyance S}'StC?1S should be used (sec the .kx:aJ drainage design manual). Unless k>cal drainage design criteria state odlcrwise. drains or swales should be designed m follows: • • No more than S acres may drain to a remporary drain or swale • Place me driun or swale above. oot on. a cut and fill slope • SwaJc bottom width sbouJd be at least 2 ft • Depth oC the sWflc should be at least 18 inches • Side slopes sbodJd be 2;1 or flatter . . • Drain or swalc should be laycd at a grade of at lca$l 1 pera:nt, but not more than 15 pc:ra:nt . • The swalc must DOl be overtoppcd by the 10-yeat, 24-bour storm. irrcspcctiv~ of tbc design aitcria stated above • Remove all trees. stumps. obstruc:tioos. and other objcctiooable marcria1 frail the swalc when it is built • Compact :my fill .matcria1 aloog the path of the swale • S~ all swales iulfflC'ltiarc:rJ. S=1 and mulch swalcs at a slope of less than S pc:n:cnt, and use rip-rap or sod for Swales. with a slope between 5 and 15 percent • Do not opc:au: comtnJCtioa vcmcJes across a swalc unless a stabilized aossing ·is provided. • The cost of swaJes and~ diversion devices is generally included in tbc eanhwork rost. ~ a separ.uc item UDdet' the grading budget of the project coosaruction contract. REFERENCES Best Management Pradices and Erosioo Coouol Manual for Coosttuction Sires, Flood Control District of Maricopa . COUDty. Arizma, Scptcnber 1992. .. Draft. Sediulcntatioo and Erosion C01JU01. All Inventay of Current Practices", U.S.E.P .A, April. 1990 . . Manual oC Stmdatds of Erosion and Sediment Cootrol Measures. As.matioo oC Bay Area GoYCtmDCDts. JUDC 1981. · Stormwar.er Management Water for the Puget Sound Basin. WzhinglOD State Deparanent of Ecology, The Tcdmical Manual· Fclxuary 1992. Publication I 91-15. . • Watr:r Quality Management P1an for the Lake Tahoe Region. Volume II. Handbook of Management Practices, Tahoe Regiooal Plaoning Agesx:y -November 1988. Construction Handbook ESC31 March, 1993 Additional Information -Temporary Drains and Swales ST ABLE OUTLET REOUIR 1 3:l OR FLATTER : i •• --- 2' CMIN.} STABILIZATION LEVEL CROSS -SECTION eLAN 0.5X OR STEEPER. DEPENDENT ON TOPOGRAPHY TEMPORARY DRAINAGE SWALE ESC31 Construction Handbook 5 • 46 March, 1993 8 Mp: SLOPE DRAIN GENERAL DF.SCRIPTION A aempomy pipe or lined channel U> drain the top of a slope.to a stable discharge point al the bottom of a slope without causing crosk>a. SUITABLE APPLICATIONS . • Where conccnuatcd ~w of surface runoff m~ be conveyed down a slope in order to prevent erosion. • Drainage for top of slope diversion dikes or swales. • Emergency spillway fee 1' sediment basin. • Drainage for top of cut/fill slopes where water can accumulale. lbc types of slope drain can include: . • Pipe drops. • Flexible downdrains. • Sectiooa1 downdrains. • Lined 1Cn'3CC drains. INSTALLATION/APPLICATION CRITERIA • Secure inlet and surround with dikes to prevent gully erosion, and anchor pipe 10 slope. • Siz.c to convey al least the peak of a 10-year, 24-hour storm (Sec local flood control agency. for requirements). • Stabilize OUtlcL REQUIREMENTS • MaPlrcnancc • Structure must be inspcctcd regularly and after storms. • lnJct must be free of undctcuuing and no water should circumvent the cnuy. • Outlet should not produce erosion; velocity dissjpalors must be maintained. Pipe anchors must be checked 10 CDSUrC that rhe pipe remains anchored to rhc slope. • Cost • CalTrans Cost Schedule gives regiooal cost ranges. LlMIT:ATIONS • Malimum draina&e area per slope drain is S aacs. (For large areas use a paved chute. roct lined cbanncl or additional pipes.) • • Oogged slope drains will force warcr around the pipe and cause slope erosion. • Dissipation ofhigb flow velocities at the pipe outlet is required to avoid downstream erosion. • Failure can result in floodin2 and severe erosion. Construction Handbook 5 • 41 Objectives Hous,kHping Practic.s Cont.ain Wast, Uinimizl Disturb«/ Attn S~biliu Disturb«! Ams <::li£ttet SJop,s/ChannJj:;, Control Sit, Plrin»t,r Control lnt,maJ Erosion Targeted Pollutants • Sediment 0 Nutrients 0 Toxic Mat•ri•Js 0 Oil & Grease_ 0 Flolltllb/1 Mat,ria/$ 0 Other Construction Wut, • UblytoH11n Significant lmp,,cl 0 Probablfl Low or• thb>ownlmpllCt Implementation Requirements Q Capital Cosu 0 O&MCom Q Maintenance 0 Training Q Suitability for Slopu>5" • High Q Low · ' ES·C32 Be Man Practic ,· .\ • ••• Additional Information -Slope Drain e slope drain may be a rigi~ pipe. such as corrugated meta.I. a flexi~le cooduiL or? lfped tar.lee drain wil.b_ I.be inlet placed the top of a slope. The drain conveys concentrated runoff down to the bcmom ot cl}I slope. The BMP typ1ca1Jy is used in combination wich a diversion control such as a r.emporacy dike or swale. at the top of I.be slope. and serves as a temporary BMP 10 reduce or eliminau: slope erosion until permanent BMPs are installeii and the-slope is stabilized. . The slope drain is applicable foranyconstructioo sue where coocenuated swfaa: runoff can accumulate and must be conveyed down the slope in orda-ro prevent crosi011. The slope drain is effective because it prevents the stonnwarer from flowing direa.fy down the slope byconfming all thenmoffinto an enclosed pipe or channel Due 10 the time lag between grading slopes and installation of permanent .stom1 water collection systems and slope stabilization measures. temporary provisioos to intercept runoff arc sometimes rw:essary. Particularly in Steep tarain. slope drains can pro<ecc unstabilized areas from erosion. Typical uses indude: • Emergency spillway for a sediment basin. • Drairulgc foe top of cut/fill slopes wbcrc swrm water can accumulate and most be conveyed down the slope. Insranalion/Applic;arjon Ctireda Temporary slope drains arc highly effective in eliminating slope erosion. Installation and maintenance requirements are small. especially whc11 flexible pipe is used. General· aiteria: • Gullyerosiooistbemajorproblemwithslopedrains. Inlctstrua:uresm0stbesecurelyenttenchedandcomp~10avoid severe gully erosion. • The drain must be securely anchored to the slope and must be adequately sized 10 wry I.be capacity of the design StOml and associated forces. • The oullct must be stabilized with rip-rap. concrete or other type; of energy dissipau:r. or directed into a stable ~imcnt trap oc basin. A debris rack is rccommcnded at the inlet. and should be encouraged for larger piges and at the outlet as a safety device 10 ix-event small cbildrc:n from entering tbe pipe. • I Materials: Material selection and criteria: for me pipe slope drain is often established by the local municipality. Soil type. rainfall pau.ems. construction schedule, and available supply are some of the factors to be conside.tcd. The following types of slope drains are commonly used: • Rigid f>it,e; This type of slope drain is also known as a pipe drop. The pipe usually consists of corrugated metal pipe or rigid plastic pipe. The pipe is placed on tmdisturbed or compacted soil and secured into the slope. One foot minimum cover is required on the pipe. and concreu: thrust blocks must be used when required by the JilUJllcipality or warranted by the caJculau:d thrust forces. Collars should be properly installed and secured with metal strappings or watertight collars. • • Rexiblc Pipe: The flexible pipe slope drain coosists of a flexible conduit of heavy duty materiai. The conduit material is securely anc:bcnd into the slope and cooncctions arc watertight The conduit should be securely fasi:ned to the metal inlet and outlet conduit seaioos with metal suappings or water right collars. • . • Sectional Dowgdrajns; 'Ibescctiooaldowndrain coosistsof pre-falxicared. sectional conduitofhall-round or third-round mataiaI. The scctiooal downdrain perfoons similar to a flume. or cbur.e. The P.ipe must be placed on ·undistutbcd or canpactcd soil and secured into the slope. • • COOCJJ:te-Uns:dicrrao: Drain· This is a conaete channel foc draining water from a lm'3Ce on a slope 10 tbe next level These drains arc after permenant sttuctnres which should be designed according ro Jocal drainage design criteria. ESC32 Construction H.andbook 5 • 48 March, 1993 . Additional 1-nf ormation -Slope Drain Design: . ·--- Un.less specified by the local municipality, Lbe capacity for temporary drains should be sufficient to handle Lbe peak nr: ••• • from a l 0-year, 24-bour rainfall event The pipe size may be computed using the Rational Method or a method establis...._ by tbc local municipality. Higher flows must be safely scored or routed to prevent any offsite concentration of flow, and aoy erosion of the slope~ • • As a guide. temporary pipe slope drains should not be sized smaller man shown in the following table: MlNIMUM MAXIMUM PJPE DIAME1ER '. DRAINAGE AREA (ACRES) 0.5 1.5 2.S ·3.5 5.0 Pcnnancot imp'ovemenrs _must be designed and installed if the drainage area is greater than S acres. 1bc following additiooal design aitaia s.boul<i be considered: • Coosuuet tbc pipe slope drain entrance of a standard llarcdcnd section with a minimum 6-iocb metal toe plarc 10 . prcvcnt nmoCf Cran undcrcu~g the pipe inld. The slope of tbc entrance is usually at le.a.st 3 percent. • Tbcxoughly canpact the soil around and under the pipe and entrance scctiai. • Sccurcly fasten the slope dram sections together. have gasketcd watertight fittings. and securely anchored into the soil • Scc:ure the flared m1ct scctioo to the slope main and have watertight CODDCCting bands. ., • • Use·in~ dikes to direct runoff into a· slope drain. The height of the dike should be at least 1 foot higher at all:. __ points than the top of the inlet pipe. • lftbc pipe slope drain is conveying sediment-laden water; direct all flows into a sediment trap (ESC55) er sediment basin {ESC56). • • Unless the pipe directly enters a sediment trap/basin. stabilize the area below the outlet with a riprap apron. Uroiratioos Jnualtatioo is critical fer effective use of the pipe slope drain~ roiniroiu: poteDtial gully erosion. Maximum drainage area per pipe slope dram is 5 acres. For Ja.rgcr areas use a paved chute.-rock lined cbaoncl "'additiooal pipes. (Sec t.bc local municipality foe drainage reqoircmcats) • • During wgc St.omJS. pipe slope drains may become clogged or overcharged, forcing water around the pipe and ausing extrrmc slope erosion. • Structmcs for dissipation or high flow velocities at the pipe-outlet must be C0DSU'DCtCd to avoid downstream erosion. • Failure or~ type of tempocaiy strUCtUre may result in flooding and severe erosion. • It the scctiooal downdrain is not sized correctly, rbc mooff can spill over rbc dram sides causing gully ~-and po•nuia~ failure or the sttuctmc. • • • ESC32 -. •' •.· . Construc,!ion Handbook 5. 49 March.1993 Additional Information -Slope Drain RENCES 'I t Management Practices and Erosion Conrrol Manual for Constroetion Si~flocxi Control Disaict of Maricopa Cooney,~ September 1992. .. Draft. Sedimentation and Erosion Control. An Inventory of Current Practices''. U.S.E.P.A.. April. 1990. Stomlwater .Management Water for the Puget Sound Basin. Washington State Department of Ecology, The Technical Manual-February 1992. Publication# 91-75. • WaJer Quality Management Plan for the Lake Tahoe Region. Volume IL Handbook of Management Practices. Tahoe Regional Planning Agency -November 1988~ ESC32 -· Comtruction Handbook 5 -50 March, 1993 -60 SIDE SLOPE • 2:1 EARTH DIKE • 4' MIN. AT LESS THAN IX SLOPE C (,0 't, STANDARD FLARED I ENTRANCE SECTION 4' 1 MIN. INLET SLOPE 3:c MIN. I· D -I I-30 • 2 -I . . RlPRAP SHOULD CONSIST OF 6"' DIAMETER STONE PLACED AS SHOWN AND SHOULD BE A MINIMUM OF 12• IN THICKNESS. .....,. • PIPE SLOPE DRAIN CRIGJDJ ~ !.!::::==================:::::::=::::::!~~-• Construction Handbook March, 1.993 Additional lnf ormation -Slope Drain ALTERNAT SEDIMENT CSEE ESC 5 FLEXIBLe PIPE WATERTIGHT CONNECTING BANO ~" I' I 4' MIN o LESS THAN 1:C SLOPE SEDIMENT TRAP RJPRA? SHOULD CONSIST OF o . DIA STONE PLACED AS SHOWN. DEPTH OF APRON SHOULD EQUAL THE PIPE DIA ANO RlPRAP SHALL BE A MINIMUM OF 12 .. IN THICKNESS. I -11-,--. LENGTH AS NECESSARY TO GO THRU DIKE IF'' 6 .. MIN I r 1,1-. CUTO~ WALL o· t0 30 ALTERNATIVE SEDIMENT TRAP; RfPRAP PLAN EJPE SLOPE DRAIN CFLEXJBLE) ES:32 Construction Handbook 5 -52 Mar-ch, 1993 BMP: OUTLET PROTECTION GENERAL DFSCR.IPJ;'ION Rock outlet proccctioa is a physical device compo~ of rock. grouted riprap. or concrete rubble which is placed at the outlet oC a pipe to prevent scour of the soil caused by. high • pipe flow velocities. and to absorb flow energy to produce non-erosive velocities. SUITABLE APPLICATIONS . • Wbetcvcr disc.barge velocities and energies at the outlets of culverts. conduits or channels are sufficient to erode the next downstream reach. • Rode outlet pro<cction is best suited for temporary use during construction because it is usually less expensive and easier to install than concrete aprons or energy dissipators. • A sediment trap below the pipe outlet is recommended if runoff is sediment laden. • Pcrmanenuod.: riprap profCCtioa should be designed and sized by die engineer as part of the culvert. cooduit or channel design. • .. Grouted riprap should be avoided in areas of frec:zc apd thaw because the grout will breakup. INSf ALLATION/APPUCATION CRITERIA • Rock outlet protection is effective when the rock is sized and placed properly. When this is accomplished. rock outlets do much to limit erosion at pipe outl~ Rock si7.c should be iDc:rcased for high vclocity flows. Gcucra1 recommendations for rock si7.c and length of oudet prolCCtioo mat arc presented in the additiooal infcxmation sheet. Best results are obtained when sound. durable. angular rock is used. CalTrans Standard Spccificatioos or • the local mumcipality can provide additional spccificatioos for constructing outlet procec doo devices. REQUlREMENTS • • Mainienancc • IDSpCCt alter each significant rain for erosion and/or disruption of the rock. and repair immcdiarcly .. • Grouted or m-tied rod:: riprap can mjnjmjze maintenance requirements. • Cost • c.aITl3DS Cost Schedule gives iegional cost ranges. • LIMITATIONS • Large suxms often wash away the rod:: outlet protection and leave the area suscep tible 10 erosion. • Scdimeat capmrcd by the rock outlet protection may be difficult to remove without removing the rock. • Outlet p-otecrloo may negatively impact the channel habitat. Construction Handbook S-53 Objectives Houssk86ping Practic,s Contain Wasts Minimizs Disturbsd Arsas Stabili:u Oisturbld Areas <:!!l!!!_sct Slopes/Chan"'ii'j]p Centro/ Sit, P1rim,tH Conlrol lntama/ Erosion Targeted Pollutants • Sediment 0 Nutrient/I 0 Toxic Materia/8 0 Oil& GrU$e 0 Floatable Materials 0 Other Construction Wute • UblytoHnt1 Significant lmpM:t : 0 ·Probab,. Low or Unknown Jmp«:t lmploment:atlon Requirements Q Capital Costs 0 O&M Co.st.s Q Maintenance 0 Training 0 Suitability for Slopu>5" • High O Low ESC40 Be Man Practic March, 1993 ·• Additional Information -Outlet Protection et proteetion is needed where discharge velocities and energies at the oucle~ pf culvens. conduits or ch.'.lnnels are sufficient to erode the immediate downstream reach. This practice protects lbe inlet or outlet from developing small eroded pools (plange pools). and proceccs against gully eros_ion resulting from scouring.at a culvert mou~ Rock outlet procection is usually Jess expensive and e.asier to instill than concrete aprons or energy dissipatocs. It also serves to trap sediment and reduce flow velocities.. • As with most channel design projects. depth of flow, roughness. gradient. side slo~ discharge rate and velocity should be considered in I.be outlet design. Compliance to JOC3l and state regulations should also be coosidered while working in environmentally sensitive streambeds. General recommendations for rock size and length of outlet protection mat is shown in t.bc rock outlet protection figure. Best results arc obtained when sound. durable, angular rock is used. Rock depth and outlet procection length arc governed by the discharge pipe size. but hydraulic calculations and velocities should be used to determine length. Your local municipality or CalTrans should be consulted for appropriate sizing criteria in your area. REFERENCES . Best Management Practices and Erosion Control Manual for Construction Sires. Flood Control District of Mariposa County, Arizona.; September 1992. Cocmcy of S~ Im~vemcnt Standards., Sacramento County -May 1989. Envirorunental Criteria Mant134 Ctty of A~ TX. 1989 . . Erosion and Sediment Control Handbook. SJ. Goldman. IC. Jackson. T.A. Burs.ztynSky, P .E.. McGraw lftll Book ~~~~ • • ~k ot Steel Drainage & Highway Construction. _American Iroo and S~ ~nstiture. 1983. Manual of Stan~ or Erosion and Sediment Control Measures, Association of Bay Area Go':emments. Jun 1981. Stonnwater Management Water f~ the Puget Sound Basin. Washington State Dcpamncnc of Ecology. The Technical Manual· February 1m Publication# 91-75. Water Quality Management Plan for the Lake Tahoe Region. Volume II.. Handbook of Management Practices. Tahoe Regional Planning Agency -November 1988. ESC40 Construction Handbook March, 1993 1 .._· ______ A_d_d_iti_o_n_a_I l_n_fo_r_m_-a_ti_o_n_-_o_u_ue_t_Pr_o_te_ctt_·o_n~------1l. I /". FILTER FABRlC f1..Ali La PIPE OUTLET TO. FLAT AREA WITH NO DEFINED CHANNEL Pf'E Oun.ET TO WE.L-DEFtE> CHANNEL La= LENGTH OF APRON do = INSIDE PIPE DIAMETER w· = APRON WIDTH d = APRON THICKNESS NOTES 1. APRON l,.INING MAY BE RIPAAP, GROUTED AIPAAP. OR CONCRETE 2. PIPE DIAMETER. APRON DIMENSIONS. AND AVERAGE ROCK.SIZE FOR RIPRAP ARE BASED ON THE DESIGN .FLOW RA TE AND VELOCITY. La ANO ROCK SIZE MUST BE SET TO SLOW THE FLOW TO NON-EROSIVE VELOCITIES (e.g .. LESS THAN 10 fps). · · SEE CAL TRANS ANO LOCAL AGENCY DESIGN CRITERIA FOR APPROPRIATE SIZING CRITERIA. 3. d = 1.5 TIMES THE MAXIMUM ROCK SIZE QIAMETER BUT NOT LESS THAN 6 INCHES. ESC40 PIPE OUTLET CONDITJQNS Cons.tr'uction Handbook 5-55 March, 1993 BM p: CHECK DAMS GENERAL DFSCRIPfION . Small tcmpoouy dams constnx:Sed aaoss a swalc or drainage ditch. Oleck dams reduce tbc velocity of cooccntratcd stoonwarer flows. thereby reducing erosion of the swa1c or ditch. and promoting scxfimcntation behind the dam. If properly anchcxcd. brush or rock filter benns ~C53) may be used for c:beck dams. • SUITABLE APPLICATIONS • Used to prevent crosioll by reducing the velocity of cbannc1 flow in small inr.ennittent cbaunels and temporary swalcs. • May al.so promote sedimcntuion behind the dam. but should not be considered to be a primary sed"uncn( trapping device because subsequent stoo:ns will scour and resus- pcnd much of the trapped sedimcnL • Sf ALLATION/APPLICATION CRITERIA : • Cbcdc dams should be placed at a di.stance and height to allow small pools to fonn bctwccn each one. . . • Backwater from a downstream ched: dam should reach the toe of the upstream check dam. • Major' floods (2 year stocm oc larger) should safely flow over the check dam without an iDcreasc in upstream floodmg ex desuuction of the cbcckdam • Primarily ~ .in mwL steep cbarrocls where velocities ex(%C(f 2 fps. • U~ in steep tarain wbcie velocity reduction is requiied. • A deep sump may be provided im~iat.ely upsucam of the cbcck dam to capture c:xcessivc sedimcnL • Check dams may be built of rocks or logs, which are secured against damage during significant floods. REQVIREMENTS • Maintc:n:mce -Inspect fa-scxfiment buildup behind the check dam and signs of erosion around the chcd: dam after each rain.. Remove accumulated sediment whenever it .reacbes one-half the sump depth. • Cost -See c.arr.rans Cost Schedule fa regiooal cost data. LIMITATIONS Use only in small open channels which drain 10 acres of less. Not to be usal in live streams. Do not instill in lined or vegetated channels. Construction Handbook 5 -56 ObJectivos Ho~kHping Practicu ConWn Wast. • Minimin D/sturb«J Ar,u SIRbllln Disturb«f AIM$ Qiii_t.a SlopaiCJiannifi> Control Sitt Perimet.r Ccntrol lntlf116/ Erosion Targeted Pollutants • s«:llment -0 Nutrlontl 0 Toxic Jhteri•II 0 OJI .t GIUSe 0 FloldM,/e Mat.;.16 0 0th• Co~cuon Waste • l.Jhly to llav• Slgn/fk:ant Imp.ct .0 Probablt. Low or .JmpltCt Implementation Requirements Q ~iu,J~ 0 O&MC:O.U Q Maintenance 0 Training 0 Su/ubllity for SSope.>5% f. High O Low ESC41 Be Man PractJc March, 1993 Additional Information -Check Dams t Check dams create small pools in swaJes and ditches which drain 10 acres or less. These IX)Ols reduce the velocity of ,'. ·· • ·-,~i- stonn water flows. thus reducing erosion of the swale/ditcb. S~dimentation also occurs in these smail IX>Ols. but probabl.' • results in little net sediment removal because. of Lbe small detention time and probable scour during longer storms. A sediment ttap (ESC55) may be placed immediately upsueam of the check dam 10 inacase sediment removal efficiency (but never in a natural stream or channel). Check dams should.not.be placed in swales/di~ with a base flow during some oc all of~ year. Iosratt,tinn/ADJ.lfiqnion Cdreria = Check dams must be sized and constructed corrcctly and maintained properly, or they will be either washed out or cause flooding. Cbcdc dams can be coosttuaed of tjtbcr rock or-logs. Use of otbcr natural~ available on-sile tbnt can witbsland the stcxmwater flow velocities is acceptable, such as pea-gravel filled in sand bags. Check dams should DQl be constrUcted from straW bales or silt f~ since coocenttated flows quickly ~ out tbesc materials. A sediment uap (ESC55) may be installed immediately upsucam ·of the ~ dam, but may be of limited effectiveness if channel flows are large enough to scour the trap during moderate .to large stonns. Maximum velocity rcductioa is achieved if tbc toe of tbc upstream dam is at lbe sainc elevation as the IOp-of the downsucam dam. The center section of tbc dam should be lower than tbc edge sections so that the check dam will act µkc a weir during major floods. Rock check dams are usually coostructed of appropriately 8" -12" rock. The rock is placed either by band or medmni• cally, but never just dumped into tbc cbannel. The dam must completely span tbc ditch or swalc to prevent wasbouL The rode used must be large enough to Stay in place given the expected design flow through the channel. Log cbcck dams arc usually constructed of 4 to 6-inch diameter logs. The Jogs· should be embedded in10 the soil_ at least • 18 iocbes. . If grass is planted to stabilize the ditch or swal~ the check dam should be removed when the grass bas matured ( unless the slopc·of the swalc is ~ than 4 percent)~ • REFERENCES Best Management Practices and Erosion Control Manual for Consuuction Sites, Aood Control District of Mariposa • County, Arizooa, September 1992. ~Draft -Sedimentation and Erosion ControL An Inventory of Cwrcnt Practices", U.S.E.P .A., April. 1990. Manual of Standards of Erosion arid Sediment Control Measures. Association of Bay Arca Governments, June 1981. . . . • Stonnwatcr Management Wata for the Puget Sound Basin, Washing10n State Department of Ecology, The Technical Manual-February 199Z Publication# 91-7S. Wa= Quality Management P!an foe the Lake Tahoe Region, Volume n. Handbook of Management Practices. Tahoe -Regional Planning Agency -November 1988~ ESC41 . . . ~ Construction Handbook 5-51 March, 1993 l£: • Additional Information -Check Dams • 4 .. -6 .. LOGS--. FLOW Construction Handbook \ \ ' ' LOG CHECK DAM ROCK CHECK DAM ROCK CHECK DAM CROSS-SECTION • L • THE DISTANCE SUCH THAT POINTS A 1 8 ARE OF EQUAL ELEVATION L SPAClNG BETWEEN CHECK DAMS 5 -58 ' ---· ~-J~i C\lf ~ • ESC41 March, 1993 BM p: SLOPE ROUGHENING/TERRACING \ GENERAL DEFJNITION '. Slope roughcuing/lemlciDg creates mkroclimatcs fa' establishing vcgctatioo..rcduccs nmotf velocity. increases iDfiltt3tioa, and provides small depressioos foc trapping sedi-. ' ·mcuL SUITABLE APPLICATIONS • • Any cleared area prior to seeding and planting. • Rlquircd foe cJean:d. erodible slopes steeper than 3:1 and higber·than S feet prior to seoting Md planting. • JN5rALLATION/APPLICATION CRITERIA Slopc· rougbenmg/lemldng is pcdmncd in scva-al ways: • Stair-step ,radmg. • •. Grooving .• • Furrowing. • Trading. • • . Rcogh graidmg. • No grading. _REQUIREMENTS • Maitltcnancc . -• ln,spcctrougbcucd slopes wcckly and after r.aintall foe cx~vc erosioo. • Rcvcgcu1e as quickly as possible. • Cost (soara:: EPA. 1992) • Surface Roughening: Performed at no (e.g., rough grading) to low (e.g., ·track· iDg),COSL • Temcing: Average al)Dual cost is S4 per linc3r foot (2 year useful life). LJMITATIONS • • Roughening is of limited cffcctivcncss 011 its own, but is ~ to speed rcvcgetatioo. Constru~tion Handbook 5-59 Obj4K:tives HOU$HHping Pr,ct/C#.$ Minimin Di$11Jrb«J Ar,u <@laz. Disturb«/~ <:lfit«tst~ Control Sit• P#im.w Control lntllm/ Erosion Target.ct Pollutants • s.dlm,,nt 0 Nutridn,. 0 Toxic llllteri•/$ 0 Oil .S ·G,.,_• 0 FlollUJble M,,teria/$ 0 Other CoMtructJon w-,. • =loHaw 'fbnt lm,-:t 0 ~ Low or Lbltnownlmpect Implementation Requirements 0 C.,,IWC~ 0 01.MC:0.ts 0 1,,le/ntenaw:. 0 Training • Sult.bmty for Slop,M>5" ,:""I'"--. : .• • High . 0 Law f • ESC42 Be Man Practic March. 1.993 • Additional Information -Slope Roughening/Terracing rougbening/r.erracing createS uneven depressions. steps or grooves ~ tbe '.t:>il ~ace to aid in establishment of vegetation. reduce ru:ooff velocity, increase infiltration. and provide for scdimeqf crapping. Surface roughening may be applied ro al1 slopes sr.eeper rban 3:1. and grcata than 5 verticaJ f~ providing some instant erosion protection oo bare soil while vegetative cover is being established. It is an inexpensive. simple and sbort-tenn erosion control ~ foe roadway cut slopes. Terracing usually is a·DlOJ'C permanent measure used ro stabiµze asteq,·slope. Terraces should be designed by a regis tered professfooal engineer and included in the project consu:uction plans. Local design criteria should be usaL IomlJaripn/AnaUHJtion Graded 3l'C3S with smooch. bard surfaces give a false im.{¥'CSSioa of 04fioisbed grading" and a job well dooe. It is difficult to cstablisb vegetldon on such surfaces due to reduced Water infiltration and the potential for CfC?Sioo. Rough slope . surfaces with uocven soil and rocks left in placc may appear unattractive or unflnishcd at first,. but they cucowage water infiltratioo. speed the establishment o( vegetatioa. and deaeased runoff velocity. Rough. loose soil surfaa:s give lime. f~ and seed sane natmal coverage. Nkhes in the smfacc provide microclimares whkh generally provide a cooler and mocc favorable moisture level than hard flat su~ this aids seed ger;mination. There are diffctent methods for achieving a roughened soil surface oo a slope. and me selection of an appropriate method depends upoo tbe type of slope. Roughening methods include stair-step grading. grocviog. and trading. Factoc.s to be coosidcted in choosing a method me slope st.e.epoess. mowing requirements. and wbctbc:r the slope is formed by cutting or filling. • 1. Disturbed ~ which will not require mowing may be stair-st.ep ~ grooved. or left rough after filling. Gelded .are3S stccpc:r· than 3: 1 soould be stm-st.epped witb beDdles (See figure at end of fact shc:ct). The stair stq,ing will~ vegetation become attacbM and also trap soil eroded from JPC slopes above. Stair-step grading is pamcu1arly appcq,riate in soils cootlinmg large amounts of soft rock. EadJ!,.step .. catcbcs malCrial which sloughs flan above. and provides a Jcve1 site where vegetation can become established. Stms sbouJd be wide enough to W0[X with standard earth moving eqwpmcnL 3. Areas which will be mowed {there areas shooid have slopes Jess than 3: 1) may have small furrows left by disking. -• • harrowing, raking. or secd-plantinz machinery opctatcd oo the cootoor. 4. It is impoctant to avoid cxa:ssive compacting of the soil surface wbc:n scarifying. Tracking with bulldoza treads is prcfaablc to no< roughening at all but is not as effective as ocher focms of roughening, as lbc soil smfacc is severely ca:npaaed and runoff is iDcreascd. Tracldng can be accomplished in a variety of ways. iocludiog '"tI3Ck walking," or driving a aawler tractor up and down the slope. in leaving a pattan of cleat imprims parallel to slope contours. REFERENCES Best M3nagemcnt ~ arid F.rosion Control Manual for Coilstroction Sites. Flood Control District of Maricopa County, Arizom. Sq(crnber 1992. Handbook of Steel. Drainage & Highway Constructioo. American-Iron and Sr= Institute. 1983. Proposed Guidance Specifying Managcmcut Measures for Sources of Nonpoint Pollution ~ Coastal Wates. Wax Group Working Paper, USEP A. April. 1992. • StonnWatcr Management W~ for the Puget SouDd Basin, W~gtt)ll State Department of Ecology, The Technical Maoual-Fcbmary 1992. Publication# 91-75. ESC42 Construction Handbook 5 -60 March, 1993 -------------------------------- • WATER. SOL AND FERTILIZER ARE HELO BY STEPS -PLANTS CAN BECOME EST ABUSHED ON THE STEPS. • STAIR STEPPING CUT SLOPES GROOVING IS CUTTING FURROWS ALONG THE CONTOUR OF A SLOPE. IRREGU.LARITIES IN THE SOIL SURFACE CATCH RAINWATER ANO PROVIDE SOME COVERAGE OF LIME. FERTILIZER AND SEED. GRQQYJNG SLOPE& STAIR-STEPPING CUT SLOPES AND GROOVING SLOPES ------------------- ESC42 Construction Handbook $-61 March, 1993 BMP: SlLTFENCE --- --- --------- GENERAL D~CRJPTION . A silt fence is made of a filter fabric which bas been entren<;:bed. auacbc:d ro supponing poles. and scmetimcs backed by a wire fence for su~ The _silt fence detains sediment laden water. promoting sedimc:n~on behind the fence.. SUITABLE APPLICATIONS • Aloogtheperimeu:roftbcsite. • Below tbe ~ of a cleared slope. • Aloog stre3II1$ an4 channels. • Around temporaty spoil~ • A.cross swales with car.cbmc:nts less than 1 acre. • Below other small cleared are.as. INS'f ALLATION/APPLICATION • Use principally in areas wbcrc sbcct flow occw:s. • • Install along a level contour. so water does not pond more than 1.5 feet at any poinL • No more than 1 acre. 100 ft. a 0.5 cfs of CODCaltrat.ed flow should drain to any point aJoog the silt fence. • Tum ends of fence uphill • Provide area behind the fence foe nmoff to pond and sediment to settle (approx. 1200 sq. ft. per acre draining to tbe silt fence). • Sdect filter fabric which rcwns 85~ of the soil. by weight. based on sieve analysis. but is not finer than an equivalent opening size of 70. REQUIREMENTS • • Mawtcnance Inspect weekly and after each .rainfall. -Repair wbetcvct fcilce is damaged. -Remove sediment when it reaches lJ'3 the height of the fence. • Cost (source: EPA. 1992) -Average annual cost !or instalJatio'l and maroteoana: (assmnes 6 mooth useful. life): S7 per line3l foot (S850 per dr.unage aae) LlMITATIONS • Do not use where 85% of the soil. by wei~• passes through a No. 200 sieve because tbc fi1ia-fabric will clog. • Do not place fence on a sl~ oc across any contour line. • Do not use in streams, channels. Cl' anywhere flow bas concentrated. • Do noc use in locations where pooded water may cause .flooding. Construction Handbook 5 • 62 Ob/actives Ho~Hping Practic.s Contiin W.ut. l,linimfn O{jturb«J Arm St.ibillz. Dlsturb«i AfNs Prot.ctst~ z=-~ Targeted Pollutants • ·• S«iiment · 0 Nutrient. 0 Toxic M.teria/6 0 01l&Greati • 0 Float.bl• Materia/6 0 Other Cc116tructlon Wat• • l.Jblyto#illn S/gnJ/kantlmp«:t 0 Proo.oJ.Lowor Lhfmown /mpM:t Implementation Requirements Q C.,,/Weo.t. Q OlcMeo.ts Q Ma_lntenanc. 0 Training 0 Suitabillty for. S/opu>5% I. e High O Low ESCSO Be Ma Practic March, 1993 ,_A ___ sil-t fc-c:ncc--is-a_tempor __ rai_y_sc_rl_jm_:_d_( bani_d_it_: 0 -cons--n_~-:bD-_,n_g_~-:-il:-~-t_i:-·~--s-~-H-:-e-:-7-attach--cd-to-su_p_por_tin_g_pos_ts._...JL eotrcncbed. and. depending upon cbe strength of the fabric used. supponcd wicb wire fence. Silt fences aap sediment in two ways: (1) by inteteepdng and detaininf-small amooncs of sediment from ~ areas during COnsttuctioo opera-, tioos in order to promote sedimentation behind the fence; and (2) by decreasing tbc velocity of low flows (up ro 0.5 cfs) inswales. Silt fena:s may be used for perimeter control. placed upsttc3Dl of tbe point!s) of discharge of sbcct flow from a site. They may also be used as inrcrioc contt0ls below diswrbcd areas where runoff may occur m the foon of sheet and rill erosion. and pcrpcndicular to minor swales or ditch lines.for up to ooc aac coouibuting drainage areas. Silt fences are generally ineffective in .locatioos wbc:tc tbc flow is concentrated and are ooly applicable (or sbcct a-overland flows. JostaUatianlApplic;ation P!amrior. Silt fences are-generally most effective when cbe following placement aircriaare followed:· • Limit tbc upstream drainage area to 1 acre or tess: when u.sed alooc or in combination with sediment basin in a larger . site. . . . • • 1bc maximum slope perpendicu1ar to the fence line should be-1:l. • Limit~ maximum $beet or overland flow path length to any point along tbc fence to 100 fccL • Limit tbc cooc:cntrated flows reaching the ~cncc to 0.5 ds. • _Silt fences arc prefer.able ro suaw baniers in many cases.. Laboratory worx at the Virginia Highway and Transportatioa Researcll Council has shown that silt fences can trap a much higher percentage of suspended sediments than can suaw bales. Wbilc the failure rate ol silt fc:nces is lower than that of suaw bamcrs. thc:rc are many instances where silt fences have been .improperly imtallcd. The following installation methods can improve pednrmaoce_ aod sboold_ be followed: • .Coosttuc:t the silt fence along a level cootour. • Sill fences should mnain-m place until tbe disturbed area is pcnnaneutly stabil.iud. • Provide sutrlcicnt roan for runoff to pond behind tbc fence and to allo\V scxlirncnt removal cquipmc:nt to pass between the silt fence and toes of slopes oc other obstructioos. About 1200 sq. fL of ponding area should be provided foe ever, aae draining to the fence. • Tum tbe ends of the filter fence uphill to pcvcnt stoon water from flowing around the fence. • Leave an UDdisWrbed oc stabilkod are.a irnmetfiatt:ly downslope frcm the fence. • Do not~ in live streams or inrermiuendy flowing cbannels... ,Design: SelcE:tion ol a filter fame is based on soil cooditioos at tbc CODSUUCtioa site (which affect tbc equivalent opcoing size (EOS) fal:cic spedfieui()ll) and charaacristics of the support fence (which affect the choice of tensile sttcngdl). The dcsipcr should specify a filter fame that retains the soil found 011 the comtruaiai site yet will have openings large • CBOUgh to permit drainage and pcvcut clogging. The following aitcria is rcaxnmc:nded for scicctioo o( the cqµivalcnt opening size: ' 1. IC 50 pcrctDt oc less of the 59il, by weight, will pass the U.S. ~tandard sieve No. 200, select the EOS 10 retain 8S pcrccut oC the soil. 1bc EOS should D<X bc~tball EOS 70. 2. For an otbenw r:,pcs. the EOS should be no larger than the opcniogs in tbc U.S. Standard Sieve No. 70 [OJX>83 in. (0.21 mm.)] except where direct discharge to• sttcam. lat.c; oc wedaod will occur, then dJc EOS sboold be DO larger tban Standard Sieve No. 100. ESCSO Construction Handbook March, 1993 • : • Additional Information -Silt Fence I, reduce the cb3nce of clogging. it is preferable to specify a fabric with openings as,jarge as allowed by the aireria, No ·c should be specified with an EOS smaller than U.S. Standard Sieve No. 100 (0.0059 in. {0.15 mm.)J. If 85 percent or more of a soil. by weight. passes through the openings in a No. 200 sieve [0.0029 in. (0.074 mm.)]. mt.er fabric should not be used. Most of the particles in such a soil would not b:: retained if the EOS was too large. and they would clog the fabric quickly if the EOS was small enough to capcure the soil. Toe fence should be supported by a wire mesh if the fabric selected does noc have sufficient strength and bursting strength cbaractaistics for the ·planned application ( as recommended by the fabri~ manufacturer). Ftlter fabric mau:rial should rontlin ultraviolet ray inhibitors and stabilize:s to provide a minimum of six m~tbs of cxpect.ed usable construc tion life at a temperature range of o· F. to 12(t F. Insta Uadno Guidelines: Ftlter fences are to be constmctcd on a level coorour. Sufficient area should exist behind the fence for pooding to occur without flooding or ovcrtopping the fc:Dce. • Posts should ·be spaced ·a maximum of 6 feet apart and driven securely into the ground a minimum of 30 inches.. • A ttcnch ~ be excavated approxiroarely 8 inches wide and 12 inches deep along the line of postS and upslope from the bamer. • When standard strength filter fabric is used. a wire mesh support fena: should be fastened securely to tbe upslope side of the posts using heavy-duty wire staples at least l inch long, tie wires or hog rings. The wire should extend into the trench a minimum of 4 inches. • 'The standard sttength tilt.er fabric should be stapled or wired to the fence. and 40 inches of the fabric should extend into the trench. When extra-strength filter fame and closer post spacing are used. the wire mesh support fence may be cliroinatc:d and the filter fabric stapled oc wired directly to the posts. • Avoid the use of joints.. The filter fabric should be purchased in a continoous roll then cut to the length of the barrier. When joints are neo-:ssary, filter doth should be spliced together only att1 support~ with a minimum 6 inch overlap. and both ends sccu:icly fast.enc:d to the posL . • The tmlch should be backfillerl with compacted native material Reguin;mcms · Marotenanc~ Inspect monthly during dry periods and immcdiarcly after each rainfall. Repair as nccess.uy. Sediment must be _removed when it reaches approximately ooc third the height of cbe fence. especially if heavy rains are expected. Ftltcr fences sboold not be removed until the upslope area has been permanently stabiliud. IJmitations • Filter fences will aeatc a temporary sedimentation pond on the upstrc3m side of the fence and ·may cause temporary flooding. Fences not constroct.ed on a level contour will be ovatoppc::d by concentrated flow resulting ro failure of the filter falce. • • Filtu fe:na:s arc lli2l practical where large flows of war.er are involved, hence the need to restrict their use to drainage areas of ooc acre ex-Jess. aod flow rares of Jess than 0.5 cfs. • • Problems may arise from iDcoaect seledion of pcxc size and/or improper installatioo.. • _Do not allow water depth to exceed 1.5 ft. at any point. • llilpl"Ot:Crly installed fences are subject to failure from undercutting, ovaiapping, or collapsing. ESCSO Construction Handbook 5 • 64 March, 1993 ,_REFE __ REN_CES ____ A_d_d_iti_o_na_l_I_nf_o_rm_at_io_n_-_s_il_t F_e_nce ______ __,l Best Management Practices and Erosion Control Manual for Consuuction Sires. Aood Control District of Ma.iicopa Couoty. A.rizooa. September 1992. Environmc:nw Action Manual. City of Austin. Texas. 1989. Manual of Staodards of Erosion and Sediment Coorrol M~ Associarin:i of Bay Arca Governments. Jun 1981. Proposed Guidance Spccifyiog Management Measures forSotJrCeS ofNoopoint Pollution in Coasrat Waters. WOIX Group Womng Paper. USEP A. April. 1992. . Sedimentuioo and Erosion Cootrol Practices. An Introductory of Current Practices (Draft). USEP A. 1990. St.ormwatcr Mam.gc:mcnt Manual fot The Puget Sound Basin, Wasbmgroo Sratc Dcpartmcnt of Ecology. Public Review Draft. 1991. Water Quality Management Plan for the Lake Tahoe Regi.on. Volume Il. ~k of Management Practices. Tahoe . Regional Planning Agency -November 1988. ESC50 Construction Handbook 5-65 March, 1993 II ~, i Additional Information -Silt Fence i I I -2" X 4" WOOD POST. STANOARD;JOR BETTER OR • EOVAL ALTERNATE: STEEL FENCE POST . , . , I i i , . -FILTER FABRIC MATERIAL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO A TT A TCH FABRIC TO WIRE ____ f _J. j I I I j I -2" X 2-14 GA WIRE F ABRfC OR EQUIV. n I I I : . "' :11 1 I .JI' ! ' Ff" II i = ~ I J ~~ = I ..::f'' -= ~ ~ . 1..r.... .... :YY.,, J, ~ ----v-. Ip•~ -I I ~ 0 co ,,, ,"\~A' /, ~~~~~, "/ L~ ~✓A'S(.!(~~~ ~Y ~-,,-1 ~,:'/ ~·~ -~~~~~ f 'I ·"»-'v~~ ~'7">::vA ~ ?Xv r I I I • I I b -H--- - ---- --1,-- ,., I I • ZauRY BOTTOM OF FILTER MATERIAL I I I I IN a-x 12-TRENCH I I _.____._ u·. 6' MAX. J.1 • u FILTER FABRIC MA TER!A 2'"' X 2 .. 14 GA WIRE F A8RlC OR EOUJY. FOLD & SET FILTER FABRIC JNTO SOIL BACKALL ANO COMPACT THE EXCAVATED. SOIL JN TRENCH AND ON BOTH SIDES OF ALTER FENCE FABRIC 2• X 4.,.. WOOD POST ALT I STEEL FENCE POSTS 8 .. StLT FENCE t>J ESC50 Construction Handbook March, 1993 BM p: STRAW BALE BARRIERS . .. _ .... , . . ... , .... . .. .. 'I"""-.: • GF.NERAL DEFINITION A sttaW bale barrier coosists of sttaW bales placed end to end-along a level cootoor in a . shallow trench and staked 10 bold them in place. Tbc barrier detains· ruooft ettating a pond ,bcbind the barrier wbc:re sedimentatioo occurs:. • SUITABLE APPLICATIONS • Aloog the perimeter of the site. • Aloog sttcams and dwmek. • Aaos.s swales with small carcbments. • Around frmP9(ary spoil areas. • Below otbcr .small. cleared areas. INSTALLATION/APPLICATION CRITERIA • Use primarily in areas wbcrc sheet or rill flow occms. • No more than 1/4 acre per 100 feet of barrier should drain to the banicr. • Insaal1 aloog a 1eyc1 contnm;, . • • Place in a 4-ioch deep trc:ncb. • Backfltf and compact lhc cxcaY31Cd soil on the upstream face of the barrier. • Secure each bale with two stakes. • Leave enough area (about 1200 sq. ft. per acre) behind the barrier for nmoff to pond (no•morc tban 1.5 ft. depth) and sediment to scu1e. REQOIREMENTs • Maintenance -IDspcct weekly and after each rain. Replace bales which have dccomposcd or whose bindings ~ve broken. Remove scdimcat behind tbc barrier when it IC3Cbes a de¢.l of 6 inches. • Costs (source: EPA. 1992) Objectives l HoU$HHping Practicn Contain Wa.st. ( ••• /,ljnimiz. Di3turi,«J At,u Stabiliz. Disturl»d Ann Prat.ct Slop..s/Chann,/s ~ Sit, p,r;,,,."'fi;:, <@rol lnt11TW ~ Targeted Pollutants • S«Jiment 0 Nutrient• 0 ToxJc Mllt•ri•,. 0 OIi~ Grea.• 0 Floetabl• Mlltn,. 0 Other Con.truction W.ute • =flOH..,. .b lkttntlmp«:t Probebl. u,w or L.bmownlmp.tet lmplernentatfon Requirements • Capita/ Ca.t• • O&MCa.t. • Mlllntenanc11 0 .Training 0 Sultlbi/lty for Slopa>5" ·-• -Avenge annual ccgt foe inctaJJariort and mabttcnanc:c (assmnes 3 mooth useful life): S17 pa liDcal foot ($6.800 per drainage acre). LIMITATIONS ·I e High O Low • Straw bale barricts arc not to be used for extended periods of time because they tend 10 rot IDd fall apart. • • • Smtlblc oaly foe sheet flow 011 slopes of 2$ or .flatter. • Not appropriaJc foc large drainage areas. limit to ooc aac otless. • Straw bales Jose their effectiveness rapidly due to rotting. thus constant ma.n,rcnaocc is nquircd. • . No( rccornmcudcd foc cooccnttated flow, inlet protection. channel flow. and live streams. • Bale bindings of jute or cotton not recommended. Construction Handbook ESC51 Be Man Practfc March, 1993 BMP: STRAW BALE BARRfERS (Continue} Straw bale barriers have not been as effective as expected due ro improper*· These barriers have been plao:d in screams and drainageways where runoff volumes and velocities have caused the barriers to wash out. In addition. failure to stake and entrench the straw bale bas allowed undercutting and end flow. ESC51 Construction Handbook 5 -68 March, 1993 A-dditionaflnformation -Straw Bale Barrier j A straw bale barrier consists of a series of secured anchoced bales placed to incercept sediment-laden runoff from small ., ·--.. drainage areas of disturped soil. The bamer ponds runoff and allow sediment ro settle. Straw bale dikes shouJd not bt' • -1,. used fcx-cx~dc:d periods of time because they tend to roe and fail· apan. ' 1be straw bale barrier is used where tbcre arc no concentratioos of water in a dwmel or drainageway, and where erosion would occur from sheet flow. These barriers arc typically consll"UCted below disturbed areas subject to sheet flow·of runoff. losra! La rion/Am,lirnrion Straw bale barriers should be used for drainage areas no mcx-e than 1/4 aac per 100 feet of barrier length. with no more than 100 ft upstream of any point al~g the barrier. The barrier should be placed along a level contour no great.er than 2:1. When .iD$talled and maintaioc'A llCCOtding to the guiqclines on this fact sheet. straw bale dikes remove approxima&dy 61$ of the se,liment tr3DSpOrtCd in COOSttUCtioo site runoff. This optimum cff"Jdenc:y can only be achlcvcd through careful rnaintt:n~; with special attention to replacing roaed or broken bales. The barrier should be constructc:d oo a Jcvcl conroor to prevent cooa:nuatiOD o( flow~ a.small portion of the bamer~ • An effective straw bale barrier should be installed in the .following manner: 1. Bales should be placed on tbc contour and in.a row with coos.tightly abutting tbc adjaceot bales. 2. Leave area foe runoff to pond~ of the barrier by locating barrier away from the toe of slopes. This also provides access fcx-maiJ11CDance 3. Each bale sbould be embedded in tbc soil a minimum of (4) iDcbcs and placed so tbc bindings arc horizontal. Bind- ings placed oli soil will soon disintegrate and cause the barrier to fail • 4. Bales should be secu:rcly ancborcd in place by either two stab:s oc re-bars driven through tbc bale. The first stake in each bale should be driven roward the previously laid bale at an aJJglc to force tbc bales together. Stakes should be driven flush with the bale. 5. Backfill and.compact the excavated soil along the upstteam face of the barrier. .. 6. Remove ~ 'barrier when it has served its usefulness so as no< to block or impede storm flow a-drainage. REFERENCES Best Managcmcot Practices and Erosioo Control Manll;31 for Coosttuction Sites, Flood Control Dis~ of Maricopa C01mty. Arizooa. Scptcmba 1992. .. Draft -Sedimentation and Erosion Control. An Inventory of CUII'CDt Practices ... U.S.E.P .A., April 1990. ""Enviroomcntal Crifc:ria Manual". City of Austin. Texas. Manual of Staodards of Erosi011 and Sediment Cootrol Measures, Associatioo of Bay Area Governments, Jun 1981. J>.roposcd Gui~ Specifying Management M~ foe Soutces oCNoopoint Pollution in Coastal Waters. Wat Group Working Paper. USEPA. April. 1992. Stonnwatcr Managc:mcnt Water for the Puget Sound Basin, Washington State Dcpuunent of Ecology. The. Tcclmical Manual-Fcbuary 1992. Publication# 91-75. Water Quality foc Construaioo BusiDcsses, Ctty of Bellevue. WashingtOD. Water Quality Management P!an for the Lake Tahoe Region. VoJmnc IT. Handbook of Management Practices, Tahoe Regional Ptamung Agerx;y -November 1988. ESC51 -• (..»i •, ~=============~~:....~i\.~~-\..L~f-• Construction Handbook S -69 March, 1993 Additional Information -Straw Bale Barrier .'--4"' VERTICAL FACE • PROMOTES ·oN stTE SEDIMENTATION BY CREA TING A TEMPORARY PONO. BEDDING DETAIL /i'-'.. , , :Y~IJIJ. ANGLE f'IRST STAKE TOWAR PREVIOUSLY LAJO BALE .... ,.U FLOW BOUND BALES PLACED ON CONTOUR 2 2"'x2• ST AKES 1 1/2' TO 2' IN GROUND. ORNE STAKES FLUSH WITH BALES. TRENCH -4 .. DEEP X WIDTH OF SALE SUBSTITUTION OF STEEL BARS FOR WOODEN. STAKES JS NOT RECOMMENDED DUE TO POTENTIAL FOR DAMAGING CONSTRUCTION EQUIPMENT ANCHORING DETAIL STRAW BALE BARRJERS ESC51 Construction Handbook 5 -70 March. 1993 8 MP: SAND BAG BARRIER GENERAL DEFJNITION . Stacking sand bags aloog a level cootour acau:s a barrier which detains sedjrncnt-laden waru. ponding water upstream of the baaicr .and pranoting sedirncnratioo. SUITABLE APPLICATIONS • Ak:lag tbc· pcrimetct of the site. • Check dams across sucams and cbaunels • Along SttC3D1S and cbaDDels. • Baaicr for utility trenches in a cbaDncL • Across swalcs with small cau:bments. • Dimon dike cc bcnn. • Bdow tbe ICC of a dcared slope. • Create a temporary scdb:nent trap. • Around tempocacy spoil areas. • B~ ~ small cleared areas. INSTALLATION/APPLICATION CRITERIA • May be used in drainage areas up to S ~ • Iosmll alatg a level coot.our. • Base of sand bag barrier should be at least 48 _incbes wide. • H~ of sand bag barrier should be at~ 18 iuchcs high. • • 4 inch PVC pipe may be insrallcd between tbc top layer of saod bags to drain large flood flows. • Provide area behind bmricr fCX' nmoa to pond and semrnent U) settle. size ac:cooling to se4izncnt trap BMP criteria (ESCS5). • • P1acc ~ the toe ·oe a slope. • Use sand bags la(gc enough and sturdy enough to withstand majCX' flooding. REQUIREMENTS • ~tenaocc • Inspect after each rain. • .Reshape CX' rc:placc damaged sand hap irnrnediarcty. • Rrmovr. sediment when itre3Cbcs six iDcbcs in depth. .• Cost Sand bag barricis arc more cosdy, but typically have a loogcr useful fife than OCber barriers. ObJ.etives HouukHping Pncfcn "contain Wast, Minima. Dlsl!.JrNd Ann . SWJib Dfsturb«J AtMS ::::: ~ lnt,maJ ~ Targeted Pollutants • S«Jlment 0 Nutrient. 0 Toxic Mlll•rhl• 0 0//AG,...• 0 Floatai,,. ,.,.,.,. 0 OthM-Conatructlon W.ute ·• I.JWytoH-. Slgnllbnt Jm,-:t ·o ProbabJ.u,wo,, ~Impact lmpl•rnentatfon RequJrementa • Capita/Com 0 O&Meo.ta 0 ""'1ntem,nc1t O· Training Q Suitability for Slopu >5" 1 , .. ... . ··, • • High O Low f . ESC52 LlMITATIONS Be • Sand bags arc more expensive than ocher barriers, but al.so more durable. PMaranctfc ' •• .J.. ~• =Bm=lap==should==not=be=used=fi=oc=sand==ba~gs.===========~======::!!f •• Construction Handbook 5. 71 March, 1993 Additional Information -Sand Bag Barrier I• S~d bag ~ ~y be used during construction activities in stream beds and urmJ consttuctioo in channels. temporary channel crossing for construction equipment. etc. Sand bag berms may also be insralled parallel to roadway construc tion. Sand bag bemls may also be used to creat.e r.emporary sediment traps. retention basins and in place of straw bales or silt fences. Examples of applications include:: • • Check dams across stream cb.anneis. • Barriers for utility trenches or ocher coostruction in a stream channel • At temporary chanDcl crossings. • May be used oo-a slope where straW bales and silt fences are not apf(Opriate. • As a diver.sioo dike. • Embank:meut fer a temporal}' sediment basin er retention basin. • Sediment baajers near the toe of slopes. • At COOSttUCtion perimeter. Advantages • Provides a semi--permeable ~ in potentially wet areas. • More p:rmanent than silt fences or straw bales. • Allows for easy relocation on site to meet changing needs during coostmction. IosraUariQDIAm,licatipn Sand bag barriers ~y be used fer sediment trapping in locations where silt fences and straw bale bamers are riot strong coough. In additioo. sand oog·barricjrs arc appropriate to use when coostrnction of cbcck dams oc sumps in a stream is • le. The S3Dd bag beans can provide the same function as ·;i check dam witfptt distmbing the stream oc vegetation. The sand bag berm will also allow a smalJ•Sffliment retention area to ~~ prior to coostruct:ion of fmal detention basins. Foe in"1alfarinu of a sand bag benn, the following criteria should 1:;e observed: • Drainage Arca· Up to five (5) acres . --Height of BCtnl -18 inches minimum height. measured fran the top of the existing ground at the upslope toe to the ~~~barrier. • • Width of Bcrin -48 iriches minimum width measured at the bottom of the barrier; 18 iocbes at the top. • Sand bag Size-Length 24 to 30 inches. width 16 to 18 inches and thid:ness six (6) to eight (8) inches. Weight 90 to 125pounds. • Sand bag Material -Polyp-opylene, polyethylene or polyamidc woven fabric. minimum unit weight four (4) ounces per square yard. mullen bmst strength cx~ing 300 psi and nltraviolet stability exceeding 70 perceoL Use of burlap is discouraged since it ro<s and deteriorates easily. • Grade of Sand• Coarse sand. g:ravcL • Runoff water should be allowed to flow over the tops of the sand bags or through four (4) inch polyvinyl chkride pipes embedfcd below the top layer of bags. • Arca behind the sand bag barrier should be established according to sizing aiteria for sediment trap BMP (ESCSS). REFERENCES Best MaoagetncDt Practic:cs and Erosioo Control Manual for Construction Sites. Flood Control District of Maricopa County, ArizaJa. September 1992. Wat.er Quality Management Plan for the l.ak.c Tahoe Region. Volume II. Haodbook ofM.anagc:ment Praaiccs, Tahoe Regional Planning Agency -November 1988. .,, Construction Handbook 5. 72 ESC52 March, 1993 ..,., ,__ ____ 1 _A_._d_di_fi_o_n_a_l r_-n_fo_r_m_a_t1_·o_n_-_s_an_d_B_a_g_Ba_m_·_er ______ -'/ I ·• 'FLOW .... • Construction Handbook 18" MIN r 6"'MIN DIAMETER ROCK 48"' MIN CROSS-SECTION WOVEN FABRIC SANDBAG FILLED WITH COARSE SAND-MIN WEIGHT 40 LBS. 41" PVC PIPE FOR DRAINAGE . DEPENDING ON FJELD CONDITIONS 24,.. MIN FRONT YJEW SAND BAG BERM. S -73 .. 12"' ESC52 March,1993 ... ·- BMP: BRUSH OR ROCK ALTER GENERAL DEFINITION A rock filter bcm1 is made of rock 3/4 to 3 inches in diametc:r and placal along a level cootciul" wbc:rc sheet flow may be detained_ and ponded, promoting scdimc:ntatioa. A brush barrier is composed of brush (usually obtained during the site ckmng) wrapped in filter cJodl and ancbored to the l0C of the slope. . If properly anchored Jxush oc rock filc.ers may be used fa-sediment ttapping and velocity reduction.· See Check Dam BMP {ESC41) for more infonnatioo. . SUIT ABLE APPLICATIONS • As check dams across mildly sloped construction roads. • Below the toe of slopes. • Aloog the site perimeter. Along streams and channels. Around temporary spoil areas. • Below other small cleared~ • At sediment traps at culvert/pipe outlets. INSTALLATION/APPLICATION CRITERIA ;• Use princ:ipally in areas where sheet or rill flow occurs. • Fer rod: filter. use larger rock and place in a staked. woven wire sbearbing if placed • wbcn: CODCaJtrated flows occur. • Install aloog a level coat.our. • Leave area behind bcm1 where runoff can pond and sediment can settle. • Drainage area should not exceed 5 acres. REQUlREMENTS Objectives HOUSllkHping Practicu Ccnuin Wast. Jlinimin Disturb#d Ar,n Sl8bib D/$turb«J Ana c§it«:t Sl~nnJ/s> :;::: Targeted Pollutants • S«JJrn.nt 0 Nutrients 0 1'.oxic Alllteria,. 0 Oil .t Greae 0 Flolltab/11 U.teria/$ 0 Other Con:nructk,n Waste -• UJc.ly tr, HIIV'fl Slgnltkant Impact 0 Pro~Lowor ~Imp.ct Implementation Requirements Q Caph/COff$ Q O&MCo.u 0 Ma/ntenanca 0 Training Q Su/W,lrd:y for Slopn>5% • Mamtcnancc -lnspca moodlly and after each rainfall I e High O Low -I!bclm damag~ rcsbapc and replace lost/dislodged rock. -Remove sediments when depth rcacbes 113 of beml height. oc l ft. • Cost -Brush fiita: Low to modetatc cost if debris from oo-sitc ckaring and grubbing is used. . -Rock filter. Expcnsiv~ since off-site materials. band constnJc:tioD and dcmolitionf removal arc USU3lly required. Construction Handbook 5 -74 ESC53 Be Man Practf Mardi, 1993 f--LIMIT--ATI-o-Ns _____ B_M_P_: _s_R_u_sH_o_R_R_o_c_K_A_LTE_R_(c_o_nti_·n_u_e)__.;. ______ -1L • Rod: berms may be difficult to remove. • Ranoval problems limit their usefuJncss in landscaped areas. • Not appropriate foe drainage areas greater than S acres. • Runoff will pond upstre.am of-the filter. possibly causing flooding if sufficient space does not exist. .. • .. ··: ESC53 Construction Handbook 5-15 March, 1993 Additional Information -Brush or Rock Filter h I' A rock ftlra-consists of open graded rod:: installed at the toe of a slope. along cbe perimcta of a developing oc disturbed area. and as a cbeckdam across construction roads. Their purpose is to inc.ercept sediment laden. runoff from disturbed areas of cbe si~ allow the runoff to pond. promote sedimentatioo behind cbe filter. and slowly release the water as sheet flow. R9(± filters are apixopriate where a r.emporary measure is needed to prevent sediments from entering right-of-ways of . traffic areas such as nC31'" the toe of slopes. incorporated into temporary stabilized construction entranc.es (ESC 26). or 31 ocher locatioos along the constructioo site perimeter. Rock filtcts may also be used as cbeck dams across one or more lanes of CODStIUaion iraffic temporary ro~s;or tmSmfaced rights of way subject to CODStrUCtioo traffic. Advantages of the rock filtc:rs are that they may be less costly than odler temporary barric:rs. and arc rel.at:ively cff.sdent at sediment removal. IusraftarionlAmzJkarion· • P!anoing: • Rock filtCIS should be placecfaloog a level contour to intcreept sheet flow. • Allow ample roan for ponding. ~imcntation. and access by sediment removal equipment between the berm and the toes of slopes. • Flow through the filter~ occur as sheet flow into an undisturbed. oc stabilized area. • InmJJatioo in stream beds requires large rock. staking of woven wire sb~cbing. and daily inspection. Design & Sizing Crltcria: The following design criteria arc commonly ~ to construct filters: In Non-Traffic Areas:· Mamnum flow-through rate per square foot.of filter= 60 gpm Height= 18 inches mmimmn • -Top width = 24 inc.bes minimum -Side slopes = 2:1 or flatta -Woveo ~ sheacbing (poultty netting) is recommc:nded in areas of concentrated flow. The wire should be 1 incb di~ettt bcxagooal mesh. galvanix.ed 20 gauge. -Build the filter along on a level contour. -Rock: 3/4 to 3 inches q,cJl giacbi for sheet flow, 3 to 5 inches open graded for roocentrated flow. • In Consttuctioo Traffic Areas: -Height= 12'" maximmn -Provide multiple filters in serlC$. spaced as shown. Bmsb EJtct Eve:y 300 ft OD slopes less than 5 percent Every 200 ft on slopes 5 to 10 percent Evay 100 ft OD slopes greater than 10 percenL Brush filters trap and filter scdiroents in a manner similar to omer barriers in this handbook {e.g.. silt fence. sttaW bale bamc:r. rod: filter). but have the advantage of being constmeted from brush cleared from the site and usually disposed off:-sitc ata cost. ESC53 Construction Handbook 5 -76 March? 1993. ._ _____ A_d_d_it_io_n_a_f _ln_fo_rm_a_ti_o_n_-_e_rus_h_o_r_R_oc ___ k_Fi_Jt_er ____ __,L Steps in Coosttuctioo of a Brush Furer: 1. Stack~ brush at the toe of a· slope or along the perimeter of the site just outside the limits of clearing and grabbing. • . Tbe ~ may be wri:rd up ro 15 ft. high and 15 ft. wide. • 2. Comuuct a ttcncb 1 to 3 ft. deep irn:mcrliarel~ upslope from. the brush. 3. Place filter fabric over the brush filter and in the ttcndl. extending 1 to 2 ft. upslope of the trench. 4. Bact::611 r.bc trcDCh with aggrcgarc or compacted soil. The trench should be deep enough and backfill material sufficient to hold tbc barrier in plac:c during a storm. REFERENCES , BestManagemcnt Pr.lctices aod Erosion Conuol Manual for Construction Sir.es, Flood Control District of Maricopa Couoty, Arizaia. Sep(cmbcrl992. • . }fandboc)r of Steel Drainage & Highway Coostructioo. American Iron and Steel Institute. 1983. Stoanwatcr Management Water for the Puget Sound Basin. Washingt00 S~ Dcpanm~t of Ecology, The Teclmical Manual-February 1992, Publication# 91-75. Stoan W~ Pollution.Plan Handbook. F.ast Edilioo. State of California. Department ofTransportatioo Divisioo of New .Tedmology., MataiaJs and Rese.arcb. October 1992. ESCS3 Construction Handbook 5 .• 77. March, 1993 ... ~.., .. , ·:.• • • •• Additional Information -Brush or Rock Filter 3/4" -3" CRUSHED ROCK FLOW 3/4"' -3"' CRUSHED ROCK GRAYa BERM s· SECTION ----=:::::::------::~--- PLAN ,.-LS' FOR NON TRAFFIC AREAS l.0' FOR TRAFFIC AREAS --------- TRAFFIC AREAS ~ - GRAVEL FILTER BERM ESC53 Construction Handbook 5 -78 March, 1993 BMP: STORM DRAJN INLET PROTECTION GENERAL DEFINITION Devices of various designs which detain sediment-laden runoff and.allow the sediment it to scuJe prioc ro discharge into a stam drain inlct or catd:I basin. SUITABLE APPLICATIONS • Every storm drain inlet receiving sediment-laden runoff should be proteacd. either by COYCring tbc inlet oc promoting sedimentation upsttcam of tbe inleL INSfALLATION/APPLICATION • • Five types of inlet protection are prcsc:ot.cd below. however. it is recogniz.ed that ocber eff'ective methods and proprietary device. exist and may be selected: -Fillt:r Fabric Fence: Appropri.atc foc drainage basins less than ooe aac with less than a 5 pctCCDl slope. . Block aod G:avcl Filter. Appropri.atc foc flows greater than 0.5 c:f's. Gravel aod W-ue Mesh Ftltcr:. Used on curb or drop inlets when: coosttuction equipment may drive over the in1cL -Sand bag barrier: Used to-create a small sediment trap upstream of inlets on sloped. paved StrccU. -Excavated Drop Inlet Sediment Trap: An excavated area around the inlet to trap sediment (sec Sediment Trap ESC 55). SeJcct me appropriate type of inlet procection aod d:sign as rcf'cucd to or as desaibed in lb.is fact sbcct. • Use ooly foc damage areas smaller than one aac unless a sediment trap first iniert:epcs tbcnmoff.. • • PiOvidc area around the inlet for water to pond without flooding suucturcs and prOfC;,.tf. REQUillEMENTS Objectives HouukHping Pt2Cticn C!Jnuin Wast. .-;,..,..:~, Mlnkrm D/$tvrb«J A,,u $1,ab/m Distvrt»d A/NS Prot»ct SI~ ~=!t Targeted PoUutants ·~t 0 Nutrit,nt1 0 Toxic M.t•rill,. 0 ·011&~ruu Q Flom,b,-,.,.,.,;.,. 0 OtMr CoMtrvction ·wu1 • •• UJr.lyaoH..... Slgnl/bnt Imped 0 l'TINlia&,W,Lowor lmpect Implementation ~ulrements Q Cllpitll/ COIIU Q OltMCoats Q Malnten•nce 0 Training 0 SulubHity for S/opH>5" • Maintenance -Tmpcct weekly and alter e.ach rain. ·1 • High O Low -Replace clogged filter fabric or stooe filren irnrocdiately. -Rrmovc sr,timcnt wbcn depth cxccc:ds half the height of the filter. oc half the dcpdl of~ scdirnc:ut Ir.Ip. Remove as sooo as upstream soils arc stabiliz.ed and streets are swept. • Cost (souro:: EPA. 1992) Avmgc annual ca;t for installation and m.ainteoaDQ: (l year useful life) is S 150 pa inlet. • Constru~ti~n Handbook S -19 ESC54 Be Ma Practf M~, 1993 BMP: STORM DRAIN INLET PROTECTION (Continue) Drainage area should not exceed l acre. IJ • ~uooff will bypass JX'C)tected inletS on slopes. • Ponding will occur at a pro<eac:d inlet. with possible short-term flooding. • Straw bales are mu effective for inlet proteetio~ h ESC54 Construction Handbook 5 -80 M21"Ch, 1993 Additional Information -storm Drain Inlet Protection l Storm drain inlet~ consists of a sediment filter or an impounding~~ or ~.of a StOfDl ~ drop ~l. .. ~ ••• orcurbinleL This erosion and sedimentation control BMP prevents exc.esstvc sed•ment frt>m entenng storm drainage~ prior t0 penn.ancnt siabilization of the disturbed area. • All on-site slOtIIl drain inlets should be procc:cted. Off-site. inlets should be proteeted in a.teas wbcrc construction activity tracks sediment onto paved areas or wbcrc inlets rec.eive runoff .from disturbed areas. Iosralladon/Aizlicatiao O:itt:tia Planning Large amounts of scxiimcnt may enter tbc s10m1 drain system when storm drains arc in..ttalled before the upslope drainage area is stabilized. otWbcrc ccosttuction isadjaccnuo an existing stocm drain. In cases of extreme r-edimcntloading. tbcstormdraia itself may dog and Jose a. major portico of its capacity. To avoid these p-oblcm.s. it is necessary ro p-cvent sediment from cntcring the sys1em at the inlets. InJctconttol.measurcspresentedinthisbandbook~notbeusedfcrinletsdiamingmcxethanooeacre. Runofffrom.largcr . distmbcd areas sbouJd be first routed through a Temporary Sediment Trap (see ESC 56) •. Different types of inlet~ ~ ~ for different applications depending on, site coodl~ and tbc type of inlet. Inlet pro(CCtion metbods not presezucd in thic barvioool: should be approved by the local storm water management agcucy. • • • • General Design and.sizing criteria: . • Gates and spaces around all inlets sbouJd be sealed ro prcvcntseq,agc of sedil'!lcnt-laden water. • Excavarc sediment sumps (wbctc nccded>'I to 2 feet with 2:1 side slopes around the inlet. • • lmtalladon proceduns for ruter fabric fence: a. Place 2 iDch by 2 inch wooden stakes around.the perimeter of tbc inlet a maximum of3 feet apart and drive them atleasl 8 iDchcs inro the~ lbc stakes must be at least 3 fect.lcag. ... • b. Excava1e a trench 'approxiDWcly 8 iDcbcs wiqc and 12 -iDc.bcs deep aroond the ouwdc pc:rimeter of the stakes. . c. Staple t;bc filtc:rfabric (formataials aod specifications. see Silt Fence ESC SO) to wooden stakes so lhat32 inches of the: fabric extends out and can be funned ioro tbc ttcncb. Use heavy-duty wire staples at least ooc inch in Jength. cl Bactfill tbc trench with 3/4 inch or less washed gravel all the way around. Installation procedure for block and pYd mt.er: a. P!ac:c hardware cloch a: c:omparable wire mesh with ooc-balf mch openings over the drop inlet so that the wire extends ~ mmfrnmn of 1 foot bcyood each side of tbc iolctsuucmre. If more lhall ooe strip is nea:ssary, overlap the strips. Place filter fabric over the wire mesh. b. Place cooactc ~ lengthwise ca their sides in a single row around tbe perimeter of the inlet. so mat tbe open ends face ODtWard. not upward. 1hc ends oC adjacent blocb should aboL The height of the bamct can be varied. dcpcodmg ca design needs. by std:ing combinaaioos ofblod:s tbataie 4 inches. 8 iDchcs. and 12 mcbes wide. The row oCbloc:b should be at Jcast 12 iDches but DO grealCI' than 24 inches high. c. Place wire mesh over ~ oolSide vcttical face (open end) of the cooaetc blocks to prevent stone mm being washed t!x'ough the blocks. Use hardware cJoth or comparable wire mesh with ooe bal! inch openings. cl Pile washed siooe against the wire mesh to the top of the blocb. Use 3/4 to 3 inch gravel Installatloa procedure ror pnl and wire mesla ruters: a. Place wire mesh over the drop inJctso that the wire extends a roiniromn of 1 foot beyond each side of the inlet SU1Jdme. Use hardware dorh er canparable wire mesh with ooc-half inch opcmngs. If more than ooc sttip ex mesh is necessary, overlap tbc strips. Place filter falxic over wire mesh.. ESCS4 Construction Handbook S • 81 -M.:u-ch, 1993 Additional Information -Storm Drain Inlet. Protection Place 314 to 3 inch gravel over lbe f"llter fabric/win: mesh. The depth of rhe &fllveJ should be at Jeast 12 inches over rhe entire inlet opening (see auachei1 figure). :J In.sta.llation proadure for sand bag bacrier. a. Use sand bag made of geoccxtile fabric (oot burlap). and fill '!'itb 3/4 in. rock or 1/4 in. pea gravel b. Construct on gently sloping_sueet. , c. Leave room upstream of barrier for water to pond and sediment w settle. d. Ptace several layers of sand bags-overlapping the bags and packing them tightly rogethcr. e. Leave gap of one bag on the top row to serve as a spillway. Flow frcm a severe sronn {e.g .. 10-year Stenn) should DO( ovcnop the curb. MaiufQJaQ<:e Rcgnimrn:ms -, . • • Fee filter fabric fcnttS: Inspections should be made on a regular basis. especially after large stonn events. If tbc f.abric becomes dogged. it sbouJd be replaced. Sediment should be removed when it reaches approximately OilC-half the hdght ol the fcucc. If a sump is uscct sccfnnent sbouJd be removed when it fills approxbnately one-half the dcptb of the boJe. _ • For gravel filters: H tbc grav;I becomes clogged with sediment. it must be carefully removed from rbe inlet. and either deaned or replaced. Since cleaning gravel at a coosuuaion site may be difficult. use the sediment-laden stooc instead as fill and put fresh stooe arouod the inlet. _ • • The inlet protcetion should be removed 30 days after the upslope area has been fully stabilized. Any sediment around the inlet must be carclully rem~ and disposed. REFERENCES • ~ Maoagcment Practices and Erosion Control Manual for Construc?on Sites. Hood Control District of Maricopa County. Arlzooa. September 1992. . • . . J, : &dimcuatioo and Erosion Control. An Invcnuxy of Cm:rcnt Practio:s", U.S.E.P .A.. April. 1990. . . F.rosioo and Sediment.Control Handbook. SJ. Goldman. K. Jackson. T.A. Bursecynsky, P .E.. McGtaw Hill Book _Company. Manual of Standards of Erosion and ~cxf"lV'Dt Control MeasutC$. Associatioo of Bay Arca Govemmcms. June 1981. P.r0pOSQi Guidance Specifying Managrment Measwes foe Sources of Noopoint Pollution in Coastal Waters. Wax Group Womng Paper. USEPA. April.1992. Stamwater Management Water for the Puget Somxl Basm. W~gton State Department of Ecology, The Tedmical Manual-February 1992, Publicatioo 191-1S. SlOml Wau:r Pollutloo Prevcntioo Handbook. First Edilioo, Seate of California. Dcpanment oC Transportation Division of New Tcclmology. Materials, and Research. October 1992 Construction Handbook 5 -82 • 'l 't ESCS4 Much.1993 Additional Jnformation -Storm Drain lnfet Protection . ..-STAKES / /,· -0ROP !NL~T ~ITH GRATE -=-=-=~~=2'::::'::~::.f~-==~ F1L TER F ABRJC ELEVATION F1L TER FABRIC SEDIMENT LADEN ~ I I a BURJED F1L TER FABRJC_/ _[r WASHED GRAVEL DROP INLET - - PROFILE FILTER FABRIC FENCE DROP INLET FILTER Construction Handbook 5 • 83 ESCS4 March, 1993 •• --• Additional f nf ormation -Storm Drain Inlet Protection GRAVEL FlLT R-----.. C3/4,.. TO 3* GRAVEL> SEDIMENT CONCRETE GU WIRE MESH WITH J/2,.. OPENINGS :, tCIJRB INLET GRAVEL AND WIRE MESH FILTER FOR CURB INLET ESC54 . ·- Construction Handbook 5 -84 Mu-ch, 1993 REOUIREO STORM WATER YI LARGER PARTICLES REMOVED --- $PEC1f1C Af PUCADQH DEPTH BEl.QW TOP OF INLET, MIN r -MAX Z' lllS METifOO OF INL£T PROTECTION IS APPLICABLE WHERE HEAVY FLOWS ARE EXPECTED AHO WHERE AN OVERFLOW CAP ABUTY ANO EASE OF M.UrrENAHCE ARE OESRA8LE. EXCAVATED PROP INLET SEDIMENT TRAP ' 7 ESCS4 El Construction Handbook 5 -85 March, 1993 • Additional Information -Storm Drain Inlet Protection • / WIRE MESH W 1 ITH 1/2"' OPENINGS __.a~~~~;z=.:::;:::z::-i~~~·' I LcoNCRETE BLOCK. LGRAVEL ALTER . C3/4 .. TO 3"' GRAVEL) TERED WATER BLOCK ANO GRAVEL FILTER AT DROP fNLEI RUNOFF WATER . WITH SEDIMENT l "'MtN 3/4 .. TO 3-GRAVEL ct2• MIN DEPTH> . TERED WATER GRAVEL-AND WJRE MESH FILTER FOR DROP INLET Construction·Handbook 5. 86 WIRE. MESH c112• OPENINGS> WITH F1L TER F ABRfC ON TOP . ESCS4 M2reh, 1993 BMP: SEDIMENTTRAP Objectives 11 HO<MkHping Praclicu _ . ..,...,. Ccnt.ain Wa.st. .-: Minima. Di3tum.d Ar,u '·-✓• -Stabalu. DWutb«f Af,u Prot.ct Slopa/Clww/$ ~. . Control Sit, Ptrim,tN ~~lnttmal~ GENERAL DEFINITION A SN:limcnr trap i.s asmall,cxcavatcd or bcrmcd area where runoff from small dramage areas is detained and sediment can seule. SUITABLE APPLICATIONS •, , Any dismrbcd area less-than 5 ~ (Sediment Basins. ESC56. must be used for drainage areas greater than ~ acres). • Aloog the perimeter of the site at locations where sediment-laden ~ff is discharged off-site. • Around and/or upslope from storm dram inlet protcetion measures. • At any point within the site where SC'dirnenr-ladc:n runoff can enter stabilized or naamal ~ or waterways. • JNSTALLATIONJAPlk.1cATION CRITERIA • . Build outside the_ Ab to be graded~ clearllig, grubbing, and grading begiIL • • • • Locate where tbe trap can be easily cleared of sediment. , • Trap size depends on the type of soil. size of the drainage area. and desired sediment removal e.ffic:icncy. • • • • The larger tbe trap. the less frequently sediment must be removed. • The owlet of the tr.Ip must be stabilized with rock. vegetation. or another suitable malCrial. • A stlbJc emagcucy spillway must be installed ro safely convey major floods (see ~ local flood ronaol agency). • REQUIREMENTS • Maintenance . . Remove sediment when the scdbncnt storage zooc i.s no mac than -1 ft.~ being full. • -Inspca weekly and aft.er each 13in. • Cost(~ EPA. 1992) • Avmge annual cost per instaDadon and maintenance (18 mooth useful llfe) is S0.70 per tt.3 (Sl.300 pc:r drainage aac). ; . LlMITATIONS • Only use fer drainage areas up ro S acres (sec Sedimentation Basin BMP ST8 for larJei'arcas). . Targeted Pollutants • S«Jiment 0 Nl#Tfent.. Q Toxk: Mllt•ri•II, 0 0//A Greae 0 Floatllble Matfltim 0 Other Con.truction Wute • Uk#yao#laff Slgnlllc,,nt lm,,.,:t ·o ProW,» Low or CH:nownlmpat:t -lmpktmentatlon RMfuirernents 0 CapiWCosta 'Q O&Meo.t. 0 Maintenarx:. 0 Training 0 Suitability for S/opa>5" I e High O Law ESC55 • Only removes~ sediment (medium silt size and larger) unless sized like ~ sccfimcn~ oa.,p. Be _typ. Man • ;;;~·. Practi Construction, Handbook S. 81 Marth, 1993 ~ ,. ...... •• Additional Information -Sediment Trap • nt trap is a small temporary ponding area. usually with a gravel outlet. Conned bj excavation and/or by constructing an earthen embankmcnL Its purpose is to collect and store sediment from sir.es cle.ared arid/or gta£k.d during construction. It is intended for ase oo small drainage areas. with no unusual drainage feamres. and projected foc a quick build-out time. It should help in removing coarse sediment from runoff. The trap is a ram;::orary measure with a design life of approximately 6 months. and is to be maintained until the site area is permanently _proo:cted against erosion by vegetation and/or struaura. AwUradon Crtrerta PJannin~ . ~ent uaps should be used only foc smaU drainage areas. If the contributing drainage area is grcacer than S acres. refer to Sediment Basins (ST8). oc subdivide the carcbrocnt area into smaller drainage basins. . . &diment 1lS1l3lly must be removed from the trap after each rainfall event. The SWPPP should detail how this sediment is to be di.spooed ot: such as for in fill areas oo-site. or removal to an approved off-site dump. Sediment traps usro as a perimerer cootrol should be mstallcd befoo: any land disturbance takes place in the drainage area. • • Sediment trapS _ate usually small enough that a failure of the stroemrc would not result in a loss of life. damage to home or buildings. or intemtpdon in the use of public roads or utilities. Also, sediment uaps ate attractive to chi1drcn and can be dangerous. The following recommendations should be implemented to reduce risks. .. 1. Instill continuous fencing around tbe sediment trap or pond. Consult local ordinances :·tcgring requirements for maintaining health and safety. 2. c .Restrict basin side slopes to 3: 1 or flan.er. Design: . • ent trap size depends on the type. of soil. size of the drainage area. and desired sediment tcmOval efficiency {sec entatioo Basin ESC56). As a rule of thumb. the larger the basin volume the greater the sediment removal efficiency. IZing critaia.me typkally established under the local grading ordinance or equivalent. Thcnmoff volumc from a two-year. 24-bour storm is a common design criraia foe sedimentation ttap. The sizing aiteria below assume dlat this nmoff volume is 0.042 ac-fi/ac (0.5 inches of runoff). While the diroatic, topographic. and soil type extrrmcs make it difficult to establish a statewide standard. the following critma should trap moderale to high amounts of sediment in most areas of California. • -• -Trap settling volmne at least 67 cu. yd. per acre. • Trap sediment stmge volume at least 33 cu. yd. per acre (note: the larger this volume. the less frequently the trap must be cJcancd out). • Trap length gI'C3f.cr t,ban twice the ?min width. . • Flood volamc large enough to contain a major flood without upstream damage and ovcrtopping the embankment. ln.sta1IatiPU Sedimenttrapsc:anbccoostructcdbyexcavarlngadqrcs.sloointbegroundorcreatinganiropoundmcntwithabarrierorlow bead dam. SC'Aimcnt ttaps should be installed outside the area being graded and should be built prioc10 the start of the grading activities or removal ex vegetation. To minimize rbe area disturbed by them. sediment uaps sbouJd be instaUe.d in narural dcprcssioos or in small swalcs or drainageways. The following steps must be followed during installation. 1. The are.a under the embanbnent must be cleared. grubbed. and stripped of any vegetation and root mat. The pcx>l ~ should be cleared. 2. The fill materlal for the embank:tnenc must be free of roou CX' otbc:r woody vegetar:ioo ~ well as ovamed stones. n:x:ii organic materlal. or olher objectionable matcriaI. The cmbaobnent may be compacted by traversing with equqmcnt while it is being coustructed. ESCSS Construction Handbook S -88 March, 1993 - ,__ ____ t __ A_d_d_it_io_n_a_f f_n_fo_rm_-_a_ti-_on_. _-_se_d_ihasm_e~_-t_r_ra_p· ____ ___./ 3. The uap is rcmov d and tbe area srabilized when tbe upslope drainage area ur=i'f)ropcrly stabilized. 4. All cut-and-fill slopes should be 3: I or flaner. Jlllii. S. When a riser is used. all pipe joints must be watertight. :• fw, 6. Wbenariserisused.atleasttbe.toptwo-tbirdsoftberiscrsballbeperforaredwithJ./Z-inchdiamcterholcs.spaced8incbc:5 vertically and 10 to 12 inches horizoorally. (Sec Sediment Basin. ESC56) • 7. When an eanh or stooe oudct is used. tbe outletcrcstelcvation·sbouJd be at least 1 foot below the top of the rmhank:mcat . 8. When a crushed stone outlet is used. the crushed stone used in the oudct should meet AASHro M43. size No. 2 or 24, or its cquiva.Jcntsuch asMSHA No. 2. Gravel meeting the above gradation may be used if crushed stone is not ~vailablc. REFERENCFS -Best Management Practices and Erosion Control Manual for Constructioa Sir.cs. Flood Control District of Maricopa County, Rough Draft• JUly 1992. .. Draft. Sedimentation and Erosion Conuol. An Inventory of Cwrcnt Ptactic.es". U.S.E.P .A.. April. 1990 . .. Enviromnental Criteria Manual", City of-Austin. Texas. Manual of Standards of'Erosion and Sediment Control Measures. Association oC Bay Arca Governments. June ·1981. Proposed Guidance Specifying Management Measures for Sources of Noopoint Pollution in Ccmtal \lf atcrs. W ode Group Womng Paper, USEPA. April. 1992. • Stonnwater Management Watt.r for tbe Puget Sound Basin. Washington State Department of Ecology, The Technical Manual-February 1992. Publication# 91-75. Wattt Quality M.anagc:;nent Plan for~ Lake Tahoe Region, Volume II. Handbook of Management Practices, Tahoe Rcgiooa1 P!anniog A~ -November 1988. _ -ESCSS . : {~ f ... \7¥(. ...... w Comtruction Handbook 5. 89 March.1993 , • • BM p: SEDIMENT BASJN GENERAL DEFINITION A pood acated by excavation occoostrncting an CDtbaolancm. and designed to retain oc detain runoff sufficiently ro allow excessive scxfimc:nt to settle. • SUITABLE APPLICATIONS • At the outlet of all disturbccf waters.hcd 10 acres or larger. • Al the outlet of sma1Jcr disturbed wataSheds. as ne.cessary. • Wbctc post construction detention basins will be loc3ted.. • Should be used in associatioo with dikes. tanpccary c:trmncls. and pipes used to divat distutbed areas into lbe basin and undisturbed areas around the basin. INSTALLATION/APPLICATION • • Comttuct before clearing and grading won: begins. Do mil locate in a stream. . All basin sites should be located wbc:rc failure of the c:ntbaolancnt would not cause loss oflifdpropc:ny damage. • • Latgc basins .are sut;ect to statellocaI dam safety requirements. Scc:urcly anchor and install an anti-seep collar on cbc outlet pipe/riser. and provide an emergency spillway foe passing majoc floods (see local flood rootrol agency). • • • • The basin volume should. be sized to capblieronoff from a2-ycar.24-bourstonn. or other ~designstonnsspeciflcdbytbclocalagency. Adctendoatimeof24to40bours sbou.ld allow ·70 to 80 petocut of S(:(fiment to settle. The basin volume crnsists of two zooes: -}. srrliIJlent StoolgC Z0DC at Je3st 1 foot deep. - A SCUling ZODC at least 2 feet deep. The length to settling depth ratio (LJSD) should be less than 200 . Thclc:ngth to width ratio should be 8fflllCrthan 6:1. or baffles arc ~uired to preYCntshon c:iranting. REQUIREMENTS • Mamt.cnano: -Inspect weekly and after each rain. -Remove sedimau whc:rc tbc sedimcntsuxage zone is halC full. • Cost: A vcragcannual ~focinsiaUadoo andmaintenaocc (2 year useful life. source: EPA. Im) Basin less than S0.000 n.3: S0.40 per ft.3 (S700 per drainage acre) Basin size greater than 50.~ fL3: S0.20 per tt.1 (S350 per drainage acre) Construction. Handbook 5 -90 Objactive.s HCXJSffHping Practi~ Conuin Wast• 1,1/nima. {)i$flJrb«f Ar,a StabaliD Oi3turb«i Ar,n Prat.ct SlopwCbann«$ COl1lrol Sit• P«in»I«' C,.CcntrollntMn6/~ . Targeted Pollutants • S«r,ment • 0 Nutrlenu Q Toxic Mllteri•I. 0 01/A G,_.• 0 Flol,t.b/11 U.tMit,i• 0 0th.,-Ccn.trvction Wute • UblytoH~ SlgnltJcant lmp«:t 0 ~ Low or LWinotm/mpact lmplern.ntatfon R~uiram.nts 0 Capital Cosu Q O&MC:O.U 0 Maintenance 0 Training 0 Sult.ability for S/opu>5" • High O Low ESC56 Be Man Practic Mardi. 1993 ft-L™IT--A-basinTI_O_N_S_d_ba_'sb_a_U -.-8-JM_,_·P_: _s_e_o,_ME_4NT_l)_B_Abcs_~N-··~-Co~-nt-in_u_·e)_dro_~--. --------,,,...., • The • shouJ ve ow side s opes (minimum : or lcnl,A;U ro prevent wnmg. • Sires with very fmc sediments (fine silt and clay) may require longer detention times for effective sediment removal. • • Basins in excess oC 25 feet beigbt and/or an impounding capacity of 50 ac. !L must obc.ain apf('Ova1 from Division of Safety of Dams. • Standing wau:r-may cause mosquiros or otbcr pesu to breed. . • Basins in excess oC ccrwn dcpd1 and storage volume aitcria must meet State Division of Safety of Dams tDSOD) and Joc:aJ safety rcquircmcn~. I ESC56 . ... ~ .. ,.,_._'-' Construc.tion Handbook 5 • 91 March, 1993 • '. , • Additional Information -Sediment Basin sediment basin is a controlled storm waler release SU1.Jcturc formed by cxcavauon or by constructing an cmbanimenc of pactedsoilacross adrainageway, or other suitable location. Its-purpose is co c.ollectandstoresedimentfrom sites cleared aix:1/or graded during CQOSUUction or for extended periods of time before reestablishment of permanent vegetation and/or .construction of pexmaoent drainage structures. It is intended ro trap sediment before it leaves the construction site. The basin is a tempcr.uy measure (with a design life of 12 to 18 months) and is to be maintained until the site area is permanently procea.ed ag~ erosion or a permanent detention basin is COOSttUcted. Sedimentation basins arc suitable for nearly an typeS of construction projects. Whenever possible. Construct the sedimen tation basins before clearing and grading work begins. Basins sbouJd be lcx:atc:d at tbc suxmwar.er outlet from the site. but not in any namral or undisturbed stream.. A typical application would indude rempoouy dikes. pipes. and/or cbannels to divert nmo[[ to the basin inlet. Many dcvcJopmcnt projects in California will be required by local on:tinanc;es to provide a storm warer detention basin for post-comuuction flood conuol.. desiltllioo, orstorm waterpollutioncoouol A temporary sediment basin may beconsttuctcd by rough grading the post-coosttUCtioo control basins early in tbe project. Sediment basins trap 70-80 percent of tht'! sediment which ~ows inw than if ~gned ac.coroing to this .handbook. Therefore. they should be used in conjunction with erosion control practices such as temporary seeding. mulching. diversion dikes. cu:.. to reduce the amount of sediment flowing inro the basin- Insra l'tlfion!Amzfiraa0u Criteria Planning: To improve the effectiveness of the basin. it should be localed tointcrceptnmoff from the largest possible amount of disturbed aica. The.best Jocatioos arc gcnc:rally low areas below disturbed arc:as. Drainage inro the basin can be improved by the use oC di~ dikes and ditches. The basin must notbc located in a stream but should be located to trap scxUment-ladcnrunoff it enters the stream. . The basin should JUlt be locar.ed where its failure would result in the loss of life or intc:nuptioa the use oc service 'of public utilities oc roads. Design: • • • 1bc sedimentation basin volume coosists of two zones: The sediment stoage zooe (at least 1 foot in depth). A scuting 20DC at least 2 feet in depd1. The sedimeat3doo basin may be famed by partial excavation andloc by construction of a compacted embankment. It may have ooc oc mac_ inflow points. Asecurclyanc:hacdrlserpipewithananti-secpcollaristbcprincipaloutlet.aloogwithanemcrgencyoverfiowspillway . Asolidriserpipewitbtwol-indtdiamete.rdewatering.bolcslocatedattbetopoftbcsedimentstoragevolumeooopposite sidcsof tberiserpipe usuallyprovidcssufficientdctcntion time for basins draining about 10 acres. Rock. rip-rap. orocbcr suilabJe ootJet proccction is provided to redocc erosion at the riser pipe outlcL • Settling Zooc Volmnc ESC56 Construction· Hand book 5 -92 M.arch~ 1993 rt-Tbe--a1-.---.--. A_dcd_~_i_~ec1i_o_bn-~~-t_l _n 1 _1ofo_r_m_a_t_io_n_-_s_e_cfi_m_e_nt_s_~_si_n _____ ---'l--, se mg zone vo lDlle is y UA, ,o wing equauom •• (V} = 1.l(SD)Q / V SEO Q = design inflow based oo tbc peak discharge from a specified design storm (e.g .. a 2-year, 24-bout duration design storm event) from the tribu?Q' drainage area as compur.ed using dJc methods required by the local flood control agency. Provide a minimum of 67 cubic yards of sealing volume per acre of drainage if a design suxm is JlOl specified. V sa:> =tbc settling velocity of the dcsi~soil pariicJc. The design particle chosen ismroiumsilt(0.02mm). This has a settling velocity CV sm) oC0JXX>96 ft/sec. As~ general rule it will DOt be neocssary to design for a partidc of siz.c Jess tbaD 0.02 mm. cspcdaUy since the surface area rcquiremax iDacases tfrarnac:jcdly for smaUc:t particle sizes. For example. a design particle of 0.01 mm requires about dlrcc times tbc surfaccarea-of0.02 mm.Note also tbat~g V SEO of 0.()0()')6 ft/~ eqU3t.CS to a surface ara (SA) or 1250 sq: ft. per ds of inflow;•··· SD = settling depth. which should be at least 2 ft.. and no shallower than the average distance from tbe hilet to the outlet oC the pond (L) divided by 200 (i.e., SD> L/200). - Tow sedimc:ut basin volume and dimension 3R! dek:rmmed as outlined below: a. The details shown iD tbe auacbed figure may be useful in designing the sediment basin. b. DctamiDc basin gcomcrry foctlr sediment storage volume cak:ulated above using a minimum of 1 ft depth and 3: 1 side slopes from the bouom of the bcmD. Note, the basin boaom ~ level • c. Extc>d the basin side slopes (at 3:1 max.) as ncccssary to obtain the settling zooc volume as detmnmcd aboYe. d. Adjml. the geometty of-the basin to eff'Cdivcly combine the seuling zone volume and sediment swragc volumes wlµlc prc,er,ing the depdl ~ side slope criteria. c. Provide an c:mctgCDcy spillway with. a crest elevation ooc foot above the 10p or the riser pipe. f. The ratio bet-we.en the-basin lc:ugtb aod width of the pood should citba' be grcalct than 6: 1. or baffles should ~ installed tD prcvcut sbcxt-circuiting. I.irniWian-s Sediment uaps aod poads must be installed only withiD tbc property limits. Failure oC the struclUre must noticsult ill Joss of life. damage ·10 bomcs oc buildings. ocmtcmJpCialof use orscmccof publicroads ocutilities. Also. sedimenttrapSaDdpoods • arc aaraaiYc 10 children and can be vr:q dangerous. Local~ regarding healdund safety must be adbcted 10. If fencing of the poad is required. the type of fence and its Jocatioo shall be sbon ill the SWPPP and in the C0DSUDctioa specifications. • Generally, tcmpcxary sedimcntadoo ponds arc limiU:d to drainage or S·acrcs oc more. • ~t.pondsmay be capablcof ttappingsmallttsedirnentpanidcs if additional detention m= is provided. However. they arc most effective wbeo used in coojuoctioa whb other BMPs such as seeding or mulchiDg. • Ponds may become 111 .. anraaivc nuisaocc" aod care must be taken to adbetc to all safety practices. • Sediment pooch designed ~ to this handbook: arc oo.ly practically effective in removing sediment down to about the medium silt me fraaioo. Scdh:ncnt-tadcn runoff with smaller size f.raaioos (fine silt and clay) will pau through unucarcd onphasizing the need to stabilize the soil quickly. ESCS6 . . .. ~ Construction Handbook 5 .• 93 March.1993 t • • Additional Information -Sediment Basin CES l Current Assessmenc of Urban Best Management Practices: Techniques for Reducing Nonpoint Source Pollution in the C~ Zooes. M~tropolitm Washington Council of Governments. March. 1992. Best Management Practices and Erosion Control Manual for Construetioo Sites. f1ood Control District of Maricopa Cooney. Rough Draft-July 1992. Draft -Scdiroen~tion and Erosion Conttol. An Invencory of Cumnt .Practices. U .S.E.P .A.. April. 1990. Eavircmnenr.al Criteria M.anuaL City of Austin. T~ GuidJm f'(X' the Design and Coostruction of Small Embankment Dams. Division of Safety of Dams. California Depart ment of Water Resources. March 1986. Manual of Stmdards of Erosion~ Sediment Control M~ Associarioo of Bay Arca Govcmmcnts. Jun 1981. Proposed Guida:occ Specifying ,Mnangrment Measures for Sources of Nonpoint Pollution in Coastal War.er. W ock Group Werling Paper. USEPA.April.1992. • Stoanwatcr Management Water foe the Puget Sound Basin. Washington State Department of Ecology. The Tedmical Manual-Febnmy 1~ Publication# 91-75. Waser Quality Managcmcnt·Ptan foe the Lake Tahoe Region. Volume .U. Handbook of Management Practices. Tahoe Regional Ptanniog Agency-November 1988. ESCSS Construction Handbook S -94 March. 1993 Additlonal Information -_Sediment Ba$in ,_,_,a,._--=--· .. -Wll. . ...oiltf OETEHTIOH TIME: 2-4 TO ~ HOURS SIJE VIEW SEOEMENT STORAGE VOWME: ti7 CU. YD. PER ACRE TEMPORARY SEDIMENT BASIN Construction Handbook 5. 95 ff-.o:a Wt\ff ., wi.ocrn ~ 11'111:& • ESCS6 March, 1993 ~- l .. :· .. . . • "t •• • • • • ··-........ ..,,., ..... ~,~. """'" N'~U\;.WU. I SU J,1.I.IACH>,, vl>ilLY contR. POWAY, IOHSAU., ',1£J ... S, Gu.urt, Nil> tw.1.SeOIIOUCili l'I.MS, ---- n~ ..... :1ffi l EROSION*'c'oNrfi&:eLANKET ) ~ )tOflffCM:J G _ ... -----------.. I l'GWW .. , ..,, " I _,., .. .,t' tlllCpOIHO OCT:'!r ibi IXIWi)i)ii FUtiii HAY BALE DIKE J• occ• s«l"< HiR1Pnffl pCJH,, 4> : )~ [ n,,, BERM OTOP10FF1LL SLOPES]~ Il!W 0 i.o,,.u51 0 XCDQH 9::9 '91( " .. w,c:,c PUs9\( \IQ.9011(1 CMI CAUC ~ tr '"'"'° 1W..U:1. ,..._,__ ·'" ....,"' ,._.,,.. _ _ ,.., PV.«IOf f 114.UIIMY U¥U """"' I/ ~CH .. "'"' ....... '°'"~s KCD9!1 9·9 ... ,,.Jffi ( ERost'oN"'sraPIZDETAIL l~ "9110,-C:'::\C ~ <p;:..r:::;;_MIY •'• . 'OIICN#ef-,1.AOR.L. VX IQ-.&JIOll'W ......... ......,. ti NJ( 111W1 .:::,,a.i;,....-r,~ ,.. .......... ~~~. • • • APPENDIX H EMPLOYEE TRAINING PROGRAM •• Wet Season (October 1st to May 30) • One observation of storm water discharge each month. Visual observation is only required of storm water discharges during daylight hours that are preceded by at least three (3) working days without storm water discharges and that occur during the Landfill's operation hours. • If no rain_fall during month, complete visual observation and report on the last day of the month. • Two storm water discharge samples per wet season from one designated location that represents the entire site or is identical to the other discharge locations or at each sampling location. • Sampling is only required of storm water discharges that occur during scheduled Landfill operating hours and that are preceded by three (3) working days without storm water discharge. • Sampling is to occur from a storm that produces a discharge for one (1) hour. • • The sample must be collected within the first hour of the discharge. • • After two events have been sampled during the wet season, continue visual observations during the first hour of the rain event Dry Season (June 1st to September 30th) • Only two inspections/reports are required during this period. • Reports/inspections must be done.between July and September. Non-Storm Water Discharge Observation • Occur quarterly (January-March) (April-June) (July -September) (October -December) during daylight hours, on days with no storm water discharge and during scheduled facility operating hours Annual Site Evaluation • Completed once per year. • Conducted within 8 to 16 months of each other • Perform at the start of the dry season and document all corrective activities as completed . (July 1-June 30) P:IALLIEDISWPPPS\UPDATED SYCAMORE-2001 REVI.DOC E-1 •• • •• • Review all visual observation records, inspection records, sampling and analyses results; visually inspect all potential pollution sources for pollutants entering the drainage systems; review/evaluate all BMPs to determine adequacy, implementation and maintenance; and determine whether additional BMPs are needed. • Visually inspect equipment (spill response, etc.) • Prepare a report that identifies personnel and dates of evaluation, necessary revisions, schedules for implementing revisions, incidents of non-compliance and corrective actions taken, and certificate that Landfill is in compliance with permit. • Revise SWPPP based on inspection results and implement changes within 90 days. Annual Report • Include all of the above reports, all analytical data, and the SWPPP. • • Sign inspection forms. • Landfill administrative office will submit SWPPP. Sampling Techniques • • • • • • • • • Record visual observations on the inspection form . Collect ·samples 30 minutes after the start of the discharge or within the first hour of discharge. Collect only during operating hours and storm events must be preceded by three (3) days . Fill one plastic container and one glass container . Fill sample bottles provided by third-party analytical lab . Write sample location, date, time, and name of sampler on the containers . Place in the cooler for chilling . Complete chain-of-custody form . Ship to third-party analytical lab . Note: Sampled storms must be a minimum of 72 hours apart . P:IALLJED\SWPPPSIUPDATED SYCAMORE-2001 REV I.DOC E-2 • • • APPENDIX I DRAINAGE SYSTEM DETAILS • Wing, where occurs one or both sides For frame an see dwgs. 0-13 & O-B Ii See note 7 I..J£.._ Curb Line _____ ; I I C L C _J C A 4" radius PLAN B Transition to nor curb height in 10 SECTION 8-B on both sides ur:! ::s "' l otherwise noted. :3 length shown on plans otheiwise shown ; 1' -9" 6.. ... u Galv. steel angle continuous and protection bar. See drawing 0-12 .... ;----------,:---,--,------------.. --4, 10",unless ~ ~ .; 3'' 6, ;,-,-_==-----=---.--,---r----r 6" min. ~ «i ..,. --,. __ ..... : ~ -10 ..., 4 -# 4 a_round pipe a....-., '=====" Rounded pipe ends see drawing 0-61 r n .. ~ Elev shown on plans : 12 :1 > Slope floor 12: 1 towards outlet :.I.__,---&._.. __j-;~~L 3• -6" • -•~: r; L ~ t SECTION C-C NOTES: 1. See Standard Drawings 0·11 through 0-15 for additional notes and details. 2. Types are designated as follows: (no wing) C, (one wing) C-1, (two wings) C-2. 3. Exposed edges of concrete shall be rounded with a radius of 1/2". 4. When V exceeds 4 ft. steps shall be installed. See Standard Drawing 0-11 for details. 5. Concrete gutter to match adjacent gutters. 6. An expansion joint shall be placed at the ends of the inlet where the curb is to adjoin. 7. Provide 1/4" tooled groove ir. cop slab in line with back of adjacent curb. 8. Surface of top slab shall be sidewalk finished to drain toward street at a slope of 1/4" per foot. 9. Maintain 1 1/2" clear spacin!J between reinforcing and surface unless otherwise noted. 10. Where inlet is to be constructed on grade and Standard Drawing 0-20 concrete apron is required, lift down~rade end of grate as shown on 0-20 . SECTION A-A LEGEND ON PLANS 15' Type C-1 Inlet Revision Approved Date SAN DIEGO REGIONAL STANDARD DRAWING ftECOMMENOEO BY THE SAN DIEGO REGIONAL STANDARDS COMMITTEE CURB INLET -TYPE C ti&../(?~ IJk. lf/5 Coa,d,n1tor R C.E. 19807 Dttt DRAWING NUMB-ER D-3 • • • t LATERAL / CONNECTOR PIPE IOM0450 mm (•3 OR •40!8•) OC ROUND EDGES TO RADIUS OF APPROXIMATE ID OF LATERAL. MAXIMUM 900 mm (36•) --- A a B BARS IL ~MAINLINE TABLE FOR DIMENSIONS AND BAR SIZES F OR 0 u, STATION ~ ~ a. STATION PT. CD Ill O D BARS IOM (•3 OR ••O, SEE NOTE 4 CD "-a: B T ~ ~ (L (mml (INCHES! (mml -i: a (INCHES) 300 12 110 4 o o l--3"'"7"'""5'--+---15"---+--110--+--4-1/-4-1 o o --------------4_5_0 ___ 18 ___ 12_0 __ 4_1/_2-t ~ 8 1--5"-'2;....;5 ___ 2_1 ___ 13_0 ___ 5_-I ':.> '! 600 24 140 5 1/4 -- 675 27 140 5 1/2 E EE ,__ ___________ e 1--7.;...5....;0 ___ 3_0 ___ 16_0 ___ 6_-t 10 o 825 33 160 6 1/4 0 ~ 1--9;:;..;o;;.;;0 __ ""'3_..;;.6 __ ~11 .... o-+--6~1,""'2-1 ::i: ::i: -------------~ ,n 1--.c..97.;...5;...._ __ 3 .... 9 ___ 10 .... 0 ___ 1_-+--+--1 ~ 1050 42 190 7 1/2 1125 45 200 7 3/4 E i--'-'=-.f.--'-+--=--..;.._+--~-'-10 o E 1200 48 210 8 O o 10 l--1'""'2-75 ___ 5_1 ___ 22-0-+--8-1/-2-1 N -,--3-5_0 ___ 5_4 ___ 23_0 ___ 9_-I ~ ~ 1--..;;..;;...;...._+----+----+-----I (0 Ill i---14-"'2""-5-+-_5....;.7_,.__24_0 __ 9_1/_4-I • • t--l;.;;;5.;;..0.;;..0-+--6 .... 0_t-_25_0;...._t-9;...._l/_2-i ~ ~ 1575 63 260 10 1--""'-'-"'--.f.---'-+--"---+-----1 II) 0 1650 66 260 10 1/4 ,._ ,n 0 0 1725 69 280 10 3/4 ::E ::E 1800 72 280 II g 10 1950 78 300 II 3/4 2100 84 320 12 1/2 1--2_2;;...5_0 __ 9_0 __ 3_4_0 __ 13_1_/_4-t g g 2400 96 360 14 '2550 102 400 15 1/2 ~ <D 1--~-----------10 0 2700 108 410 16 ,._ .a -1--2-8_5_0 __ 11_4 __ 4_2_0 __ 16_1_/_2-t .!. .!. a:, 1--~---1----1----t-----tE E - _3_0_0_0 __ 12_0 __ 4_4_0 ___ 11_~e e ~ 3150 126 440 17 an o 1--3;;..;.3.;;..0;;._0-1-~I 3;;..;;2 __ 4_5_0'--1-,-7--1_/2_ 0 i5 g ---t---t---t----t::E .., (\I 3450 138 450 17 1/2 an 0 t--3"-6""'0_..;;.o-+-__,.;_;14;..;;4'---t--4-6""'0'---t---'1a;c...;;;;.-1 N N ,_ PLAN e J/1 15M0450 mm (•4018•) OC, BOTH WAYS, TO BE USED WHEN 02 IS 1500 mm (60") OR MORE LONGITUDINAL SECT! ON 15M0450 mm (•4018") OC, BOTH WAYS, TO BE USED WHEN B IS 1500 mm (60") OR MORE ------~ IL ~MAIN LINE SECT! ON N1 -N11 -N1• PROJECTED ON M-M-N• AMERICAN PUBLIC WORKS ASSOCIATION -SOUTHERN CALIFORNIA CHAPTER IL PROMULGATED BY THE PUBLIC WORKS STANDARDS INC .. TRANSITION STRUCTURE PIPE TO PIPE STANDARD PLAN METRIC GREENBOOK COMMITTEE 1992 REV.1996 USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION 340 -1 SHEET1 OF2 R • • • PRECAST MANHOLE MODELS PROCESSES FLOWS 0.75 TO 6.5 CFS VARIES T ----'A'-----.1 'D' A -FOOT PRINT DIAMETER D -DEPTH BELOW PIPE INVERT, VARIES PRECAST DESIGN DESIGN MODEL FLOW RATE HEAD LOSS NUMBER cfs MGD m 3 /sec ft. m PMSU20_15 0.75 0.49 0.021 0.35 0.11 PMSU20_20 1.20 0.78 0.034 0.48 0.15 PMSU20_25 1.68 1.10 0.048 0.62 0.19 PMSU30_20 2.0 1.29 0.056 0.65 0.20 PMSU30_28 3.0 1.94 0.085 0.70 0.21 PMSU40_40 6.5 4.2 0.18 0.95 0.29 -··-· ... Jj \._J h. ---- \. '""""\ I I ' '""""\ I I SCREEN DIA./HT. - ft. 2/1.5 2/2.0 2/2.5 3/2.0 3/2.8 4/4.0 I\. ---- J v I DEPTH BELOW PIPE INVERT "D" ft. 5.3 5.8 6.3 6.25 6.7 7.8 ~ Lr .. --... v- , ,- ,: FLOIJ • =--~. ::_.} FOOT PRINT DIAMETER "A" ft. 6.0 - 6.0 6.0 .. 7.3 7.3 -9.5 I I l i ! i I I 1 I I I ! ------- *standard screen opening is 4 700 microns (. 185 in.). Screens also available in 2400 microns (.095 in.) . Maximum head loss: During high flow conditions, if flow exceeds CDS design capacity, then average maximum headloss is about (1.3 to 2.5) V 2/2g; where V is determined under full pipe conditions. 1-0 • APPENDIX J STORM WATER MONITORING FORMS • • ·• ' • STORM WAT.ER DISl • .. ·.1\.RGES ASSOCIATED WITH INDUSTRIAL ACTIVITIES . Non-stonn water discharge visual observations are used to detect the presence of non-storm water discharges. -This from should be filled out at least one time each quarter, on days with no storm water discharges. -Quarterly visual observations shall be conducted in each of the following periods: January-March, April-June, July-September, October-December. -Visual observations shall document the presence of any discolorations, stains, odors, floating materials, etc., as well as the source of any discharge. DISCHARGE DATE/ DESCRIBE DESCRIBE SOURCE OF LOCATION TIME DISCHARGE OBSERVED? OBSERVATIONS DISCHARGE YES NO INDICATIONS OF PRIOR DISCHARGE YES NO Comments/Corrective Actions Taken for above: ____________________________________ _ Quarterly Observation (Check One): January -March O April -June D July -September 0 October -December 0 ' Was the last observation perfonned within 6 -18 weeks of this date: (Check One): Yes O No O • Provide explanation in comment area if no. Comments: -------------------------------------------------~ Inspector's Name: __________________ _ Title: --------------- Signature: ___________ -.:-----------Date: --------------- • STORM WATER DIS1.~GES ASSOCIATED WITH INDUSTRIAL ACTIVITIES Stenn water discharge visual observations shall occur during the first hour of discharge for at least one storm per month between October I and May 30. Month: _________________ _ Approximate time stortn water discharge began: _________ _ DISCHARGE DATE/ DISCHARGE OBSERVATIONS DESCRIBE DESCRIBE SOURCE OF LOCATION TIME (CIRCLE ALL THAT APPLY) OBSERVATIONS DISCHARGE Floating Materials? Suspended Materials? Odors? Oil/Grease sheen? Discolorations? Cloudiness? Comments/Corrective Actions Taken for above: ____________________________________ _ • A minimum of one visual observation of storm water discharge is required monthly during the wet season (October 1st to May 30th) -Observations must be performed during a minimum of one s·torm event that produces a significant discharge (discharge of at least one hour duration) . • Observations must occur within the first hour of discharge and must be preceded by at least three (3) working days without storm water discharge. Have the above conditions been met for this ob~ervation? (Check One): Yes O No O Provide explanation in comment area if no. Comments: -------------------------------------------------- Inspector's Name: __________________ _ Title: --------------- Signature: _____________________ _ Date: --------------- • • • 20.02 • ·. ANNUAL 'REPORT SIDEA FORM 1-SAMPLING & ANALYSIS RESULTS FIRST STORM EVENT If analytical results are less than the detection limit (or non detectable), show the value as less than the numerical value of the detection limit (example: <.05) If you did not analyze for a required parameter, do not report •o•. Instead, leave the appropriate box blank • When analysis Is done using portable analysis (such as portal:ile pH meters, SC meters, etc.), Indicate "PA" In the appropriate test method used box, • Make additional copies of this form as necessary . NAME OF PERSON COLLECTING SAMPLE(S):, __________ _ TITLE: __________ _ SIGNATURE: __________ _ ANALYTICAL RESULTS For First Storm Event DESCRIBE DATEfrlME TIME BASIC PARAMETERS OTHER PARAMETERS DISCHARGE OF SAMPLE DISCHARGE LOCATION COLLECTION STARTED Example: NW Out Fall PH TSS SC O&G TOC l l □AM □AM . □PM __;_ □PM l l DAM DAM ! □PM __;_ □PM l l DAM DAM . □PM __;_ □PM l l DAM DAM □PM I . __;_ □PM TEST REPORTING UNITS: pH Units mci/1 umho/cm ma/I mg/I TEST METHOD DETECTION LIMIT: TEST METHOD USED: ANALYZED BY (SELF/LAB): TSS • Total Suspended Solids SC • Specific Conductance O&G • OIi & Grease TOC • Total Organic Carbon ' • • 200"1·2002 ANNUAL REPORT FORM 2-QUARTERLY VISUAL OBSERVATIONS OF AUTHORIZED • NON-STORM WATER DISCHARGES (NSWDs) ./ • SIDEA • Quarterly dry weather visual observations are required of e~ch authorized NSWD. • Authorized NSWDs mu.st meet the conditions provided In Section D (pages 5-6), .• Observe each authorized NSWD source, Impacted drainage area, and discharge location. QUARTER: Observers Name: • JULY-SEPT. DATE: Title: I I Signature: QUARTER: Observer.a Name: OCT.-DEC. Title: DATE: I I Signature: QUARTER: Observers Name: JAN.-MARCH Title: DATE: ' l l Signature: QUAATER: Observers Name: APRIL-JUNE Title: DATE: l l Signature: . , : of the General Permit. . • • Make additional copies of this form as necessary. □ YES WERE ANY AUTHORIZED NSWDs If YES, complete DISCHARGED DURING THIS QUARTER? reverse side of □ NO this form. 0YEs WERE ANY AUTHORIZED NSWDs If YES, complete DISCHARGED DURING THIS QUARTER? reverse side of □ NO this form. OvEs WERE ANY AUTHORIZED NSWDs If YES, complete DISCHARGED DURING THIS QUARTER? reverse side of □No this form. 0YES WERE ANY AUTHORIZED NSWDs If YES, complete DISCHARGED DURING THIS QUARTER? reverse side of □No this form. - • • 2001-2002 ANNUAL REPORT FORM 3-QUARTERLY. VISUAL OBSERVATIONS OF UNAUTHORIZED NON-STORM WATER DISCHARGES (NSWDs) • Unauthorized NSWDs are discharges (such as wash or rinse waters) that do not meet the conditions provided In Section D (pages 5-6) of the General Permit. ~ Quarterly visual observations are required to observe current and detect prior unauthorized NSWDs. • Quarterly visual observations &re required during dry weather and at all facility drainage areas. • Each unauthorized NSWD source, Impacted drainage area, and discharge location must be identified and observed. .. Unauthorized NSWDs that can not be eliminated within 90 days of observation must be reported to the Regional Board in accordance with Section A.1 O.e of the General Permit. • Make additional copies of this form as necessary. QUARTER: JULY-SEPT. Observers Name: WERE UNAUTHORIZED DATE/rlME OF NSWDs OBSERVED? □YES ONO OBSERVATIONS Title: 0 AM WERE THERE INDICATIONS OF L L -·-0 PM PRIOR UNAUTHORIZED NSWDs? □YES ONO Signature: QUARTER:-OCT.-DEC. Observers Name: WERE UNAUTHORIZED DATE/rlME OF NSWDs OBSERVED? □YES ONO OBSERVATIONS Title: 0 AM WERE THERE INDICATIONS OF l l -·-0 PM PRIOR UNAUTHORIZED NSWDs? □YES ONO Signature: QUARTER: JAN.-MARCH I Observers Name: WERE UNAUTHORIZED OATE/rlME OF NSWDs OBSERVED? □YES ONO OBSERVATIONS Title: 0 AM WERE THERE INDICATIONS OF L l -·-0 PM PRIOA UNAUTHORIZED NSWDs? □YES ONO Signature: QUARTER: APRIL-JUNE Observers Name: WERE UNAUTHORIZED DATE/TIME OF NSWDs OBSERVED? □YE$ ONO OBSERVATIONS Title: ,, 0 AM WERE THERE INDICATIONS OF l l -·-0 PM PRIOR UNAUTHORIZED NSWDs? □YES □NO Slanature: ., • SIDEA If YES to either question, complete reverse • side. If YE:sfo· either question, complete reverse side. If YES to either • question, complete reverse side. If YES to either question, complete reverse side. --· ------------~-----~--------· --· - • • • 2001-2Q02 ANNUAL REPORT FORM 4-MONTHL Y VISUAL OBSERVATIONS OF STORM WATER DISCHARGES SIDEA • Storm water discharge visual observations are required for at least one storm event per month between October 1 and May 31. • Visual observations must be conducted during the first hour of discharge at all discharge locations. • Discharges of temporarily stored or contained storm water must be observed at the time of discharge. Observation Date: October __ 2001 Drainage Location Description Observers Name: Observation Time TIiie: Time Dlscharoe Beoan Signature: Were Pollutants Observed (If yes, complete reverse side) Observation Date: November __ 2001 Drainage Locallon Description Observers Name: Observation Time Title: Time Dlscharoe Beaan Signature: Were Pollutants Observed (If yes, complete reverse side) Observation Date: December __ 2001 Drainage Location Description Observers Name: Observation Time Tille: I Time 0lscharoe Beaan Signature: Were Pollutants Observed (If yes, complete reverse side) Observation Date: January __ 2002 Drainage Location Description Observers Name: Observation Time TIiie: Time Dlscharae Beoan Signature: Were Pollutants Observed (If yes, complete reverse side) • Indicate "None• In the first column ·of this form If you did not conduct a monthly visual observation. • Make additional copies of this form as necessary. • Until a monthly visual observation Is made, record any eligible storm events that do not result In a storm water discharge and note the date, time, name, and lllle of who observed there was no storm water discharge. #1 #2 #3 #4 □P.M. 0 P.M. 0 P.M. □P.M. : nA.M. : 0 A.M. : OA.M'. : nA.M. QP.M. □P.M. QP.M. □P.M. : OA.M. : □A.M. : QA.M. : nA.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 #1 #2 #3 #4 0 P.M. 0 P.M. 0 P.M. OP.M. : nA.M. : 0 A.M. : QA.M. : nA.M. QP.M. 0 P.M. OP,M. QP.M. : OA.M. : QA.M. : QA.M. : □A.M. YES 0 NO □ YES 0 NOD YES 0 NO □ YES 0 NO 0 #1 #2 #3 #4 0 P.M. 0 P.M. 0 P.M. OP.M. : nA.M. : 0 A.M. : OA,M. : nA.M. QP.M. QP.M. QP.M. □P.M. : □A.M. : QA.M. : QA.M. : □A.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 #1 #2 #3 #4 0 P.M. 0 P.M. 0 P.M. □P.M. : n A.M. : OA.M. : 0 A.M. : nA.M. QP.M. 0 P.M. □P.M. QP.M. : QA.M. : □A.M. : QA.M. : nA.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 • • • 2001-2002 ANNUAL REPORT FORM 4 (Contlnued)-MONTHLY VISUAL OBSERVATIONS OF STORM WATER DISCHARGES • SIDEA Storm water discharge visual observations are required for at least one storm event per month between October 1 and May 31. Visual observations must be conducted during the first hour of discharge at all discharge locations. • Discharges of temporarily stored or contained storm water must be observed at the time of discharge. Observation Date: February __ 2002 Drainage Location Description Observers Name: Observation Time Title: Time Dlscharae Beaan Signature: Were Pollutants Observed (If yes, complete reverse side) Observation Date: March __ 2002 Drainage Location Description Observers Name: Observation Time Title: Time Dlscharae Beaan Signature: Were Pollutants Observed (If yes, complete reverse side) Observation Date: April __ 2002 Drainage Location Description Observers Name: .Observation Time Title: ' Time Dlscharoe Beaan Signature: Were Pollutants Observed (II yes, complete reverse side) Observation Date: May __ 2002 Drainage Location Description Observers Name: Observation Time Title: Time Dlscharne Benan Signature: Were Pollutants Observed (If yes, complete reverse side) • Indicate "None" In the first column of this form If you did not conduct a monthly visual observation. • Make additional copies of this form as necessary. • Until a monthly visual observation Is made, record any eligible storm events that do not result In a storm water discharge and note the date, time, name, and title of who observed there was no storm water discharge. #1 #2 #3 #4 □P.M. 0 P.M. □ P.M. □ P.M. : nA.M. : D A.M. : □ A.M. : n A.M. □P.M. 0 P.M. □ P.lv\. □ P.M. : QA.M. : 0 A.M. : □ A.M. : □ A.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 #1 #2 #3 #4 0 P.M. 0 P.M. □ P.M. □ P.M. : QA.M. : 0 A.M. : □ A.M. : n A.M. QP.M. 0 P.M. □ P.M. □ P.M. : QA.M. : 0 A.M. : □ A.M. : □ A.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 #1 #2 #3 #4 : 0 P.M. 0 P.M. □ P.M. □ P.M. : nA.M . : 0 A.M. : □ A.M. : n A.M. ,, QP.M. 0 P.M. □ P.M. □ P.M. : QA.M. : QA.M. : □ A.M. : □ A.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 #1 #2 #3 #4 □P.M. 0 P.M. □ P.M. □ P.M. : nA.M. . 0 A.M. : □ A.M. n A.M. . : QP.M. 0 P.M. □ P.M. □ P.M. : QA.M. : 0 A.M. : □ A.M. : □ A.M. YES 0 NO □ YES 0 NO □ YES 0 NO □ YES 0 NO 0 • • • 2001-2002 ANNUAL REPORT SIDEA FORM 5-ANNUAL COMPREHENSIVE SITE COMPLIANCE EVALUATION .. P..OT.~NTJAL .. POLLUTANT SOURCE/INDUSTRIAL ACTIVITY BMP STATUS EVALUATION DATE: _ _../_....,/ __ INSPECTOR NAME: __________ _ TITLE: ___________ _ SIGNATURE: ___________ _ POTENTIAL POLLUTANT Describe deficiencies In BMPs or BMP Describe addltlonal/revlsed BMPs or SOURCE/INDUSTRIAL ACTIVITY AREA HAVE ANY BMPs NOT BEEN □YES If yes, to either Implementation corrective actions and their date(s) of (as identified In your SWPPP) FULLY IMPLEMENTED? ONO question, complete Implementation the next two columns of this form ARE ADDITIONAUREVISED ·□YES BMPs NECESSARY? ONO ' ' POTENTIAL POLLUTANT Describe deficiencies In BMPs or BMP Describe addltlonal/revlsed BMPs or SOURCE/INDUSTRIAL ACTIVITY AREA HAVE ANY BMPs NOT BEEN □YES If yes, to either Implementation corrective actions and their date(s) of (as Identified In your SWPPP) FULLY IMPLEMENTED? ONO question, complete Implementation the next two columns of this form ARE ADDITIONAUREVISED □YES BMPs NECESSARY? ONO POTENTIAL POLLUTANT Describe deficiencies In BMPs or BMP Describe addltlonal/revlsed BMPs or SOURCE/INDUSTRIAL ACTIVITY AREA HAVE ANY BMPs NOT BEEN QYES If yes, to either Implementation corrective actions and their date(s) of (as Identified In your SWPPP) FULLY IMPLEMENTED? ONO question, complete Implementation the next two columns of this form ' ARE ADDITIONAUREVISED □YES BMPs NECESSARY? ONO . POTENTIAL POLLUTANT Describe deficiencies In BMPs or BMP Describe additional/revised BMPs or SOURCE/INDUSTRIAL ACTIVITY AREA HAVE ANY BMPs NOT BEEN QYES If yes, to either Implementation corrective actions and their date(s) of (as Identified In your SWPPP) FULLY IMPLEMENTED? ONO question, complete Implementation the next two columns of this form ARE AODITIONAUREVISED □Yes BMPs NECESSARY? ONO TABLE 1 Analytical Parameters PA.R.AlvIETER Oil and Grease pH Specific Conductance Total Suspended Solids (TSS) Priority Pollutant Metals (Reported. as T 9tal. including Fe) tL TABLE 1 Analytical Parameters SA.lv!PLE TYPE EPA 1\1ETHOD Grab 413.1 Grab 150.1 Grab 12-0. l Grab 160.2 Grab Various • APPENIDX K GENERAL STORM WATER PERMIT SECTION A CHECKLIST • • • General Storm Water Permit Section A Checklist Industrial Activity -SWPPP Requirements Location in SWPPP Section A 1 -hnplementation Schedule Section A2-0bjectives Section A2 -Revisions -The SWPPP shall be revised whenever appropriate Section A3.a-Pollution Prevention Team Section A3.b -Review of other requirements and existing facility plans Section A4.a-e -Site map showing facility boundaries, storm water drainage areas, surface water bodies, soil erosion, municipal storm drain inlets, storm water collection system, • impervious areas, materials storage areas, and spill areas • Section AS -List of significant materials Section A6.a -Description of potential pollutant sources, including industrial processes, material handling and storage areas, dust and particulate-generating activities, significant spills and leaks, non-storm water discharges, and soil erosion. Section A6.b-Tabular summary of potential pollutant sources with best management practices (BMPs) Section A 7 -Assessment of potential pollutant sources - Section A8 -Narrative description of storm water BMPs to be implemented at the facility Section A.8a -Nonstructural BMPs Section A.8.a.i -Good housekeeping Section A.8.a.ii -Preventive maintenance Section A8.a.iii-Spill response Section AS.a.iv -Material handling and storage Section A8.a.v-Employee training • Section A.8.a.vi-Waste handling/recycling ·-1 • Industrial Activity -SWPPP Requirements Location in SWPPP Section A.8.a.vii -Record keeping and internal reporting Section A.8.a.viii -Erosion control and site stabilization Section A.8.a.ix-Inspections Section A.8.a.x -Quality control Section A.8.b -Structural B:MPs Section A.8.b.i -Overhead coverage Section A.8.b.ii -Retention ponds Section A.8.b.iii -Control devices Section A.8.b.iv -Secondary containment structures Section A. 8. b. v -Treatment - Section A.9 -Annual comprehensive site compliance evaluation Section A.9 .a -Review of visual observation records, inspection records, and sampling and analysis results Section A.9. b -Visual inspection of potential pollutant sources Section A.9 .c -Review and evaluation of all BMPs • Section a.9 .d -Evaluation report identifying personnel performing the evaluation, date(s), necessary SWPPP revisions, schedule for implementing SWPPP revisions, any incidents of noncompliance and the corrective action taken, certification of compliance with the general permit Section A.10 -General requirements -· • 2