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Multi-Sector General Permit Preparing a Stormwater Pollution Prevention Plan

Multi-Sector General Permit Preparing a Stormwater Pollution Prevention Plan . DEC Stormwater Section Christy Witters & Christina Hutchinson www.vtwaterquality.org/stormwater.htm (802) 241-3770. Agenda. Multi-Sector General Permit Overview Deadlines

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Multi-Sector General Permit Preparing a Stormwater Pollution Prevention Plan

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  1. Multi-Sector General PermitPreparing a Stormwater Pollution Prevention Plan DEC Stormwater Section Christy Witters & Christina Hutchinson www.vtwaterquality.org/stormwater.htm (802) 241-3770

  2. Agenda • Multi-Sector General Permit Overview • Deadlines • Stormwater Pollution Prevention Plan (SWPPP) Required Contents • Individual Assistance • Endangered Species information • Impaired Waters information

  3. MSGP Overview • Goal: Prevent pollution from industrial activities • VT MSGP signed August 18, 2006 • 5 year National Pollutant Discharge Elimination System (NPDES) permit required by Federal law • Requires facilities that have industrial materials or activities exposed to stormwater to: • Prepare a Stormwater Pollution Prevention Plan (SWPPP) • Monitor outfalls for potential pollutants

  4. Deadlines • Notice of Intent (NOI) application form • Immediately • Stormwater Pollution Prevention Plan (SWPPP) • Immediately

  5. SWPPP Contents • We will now walk through the Stormwater Pollution Prevention Plan • Follow along in the 2 documents provided: • Blank Stormwater Pollution Prevention Plan • Stormwater Pollution Prevention Plan Instruction Booklet

  6. Cover Page • Fill in your facility name • Leave your permit number blank • Your permit number will be assigned when you submit your application • It is a 4 digit number, unique to your facility • Example: 1234 - 9003

  7. Page 1 Introduction • Enter the official or legal name of the facility or site. • Enter the street address of the facility. Pollution Prevention Team • Enter the name, title and contact information for the team members. • Enter the responsibilities for each team member. • Areas of responsibilities include: • initial site assessment • identification of pollutant sources and risks • decision making on appropriate BMPs • regular evaluations to measure the effectiveness of the plan.

  8. Page 2 Facility Information • Enter the complete street address of the facility. • Enter the Latitude and Longitude of the approximate center of the facility. • Enter the Standard Industrial Classification (SIC) code and MSGP Sector for your facility.

  9. Page 2 (continued) Narrative Site Description • Enter the size of the facility in acres • Enter the size of the impervious cover in acres. • Divide the impervious area (#2) by the total size of the facility (#1) and multiply the result by 100. Example: • Size of facility = 2 acres • Impervious cover = 1.5 acres • (1.5 / 2) = 0.75 x 100 = 75% • Enter the facility specific information

  10. Page 3 General Location Map • Provide a U.S. Geological Survey (USGS) quadrangle map • Must show receiving waters and other significant landmarks within a one-mile radius. • You may use the Stormwater Site Locator map at http://maps.anr.state.vt.us/website/sw_viewer to locate your facility and receiving waters.

  11. Page 4 Site Map • See SWPPP Instruction Booklet for map requirements

  12. Page 5 Receiving Waters • Enter the names of all receiving waters to which stormwater from your site is discharged • Enter the numbers of the discharge points that flow to this receiving water (number your discharge points on your site map) • Enter the receiving water classification found in the Vermont Water Quality Standards • Identify if the receiving water is impaired and for what pollutant

  13. Page 5 (continued) Precipitation Information • Enter the annual average precipitation for your site. • Northeastern Region = 45 inches • Western Region = 39 inches • Southeastern Region = 46.5 inches • Enter the wettest months. • Enter the expected rainfall in the wettest month. • Describe the type and intensity of storms. • Explain how your operation is affected by the weather.

  14. Page 6 Inventory of Site Areas and Exposed Materials • Significant Materials Include: • material handling equipment • industrial machinery • raw materials • finished products • waste materials such as ashes, slag, and sludge • liquids including fuels, solvents, and detergents • fertilizers, pesticides

  15. Page 7 Significant Materials Used Onsite • Enter the physical description and stormwater pollutants that are contained in each significant material • This information is found on Material Safety Data Sheets • Use this information during inspections to correlate stormwater contamination with its source.

  16. Page 8 Inventory of Past Spills and Leaks • Record any spills or chronic leaks that have occurred on-site for three years prior to this permit • When you develop stormwater controls for the facility you must consider measures that will prevent reoccurrence of spills • If there have been no spills or leaks on your site within the last three years, you may write “No past spills or leaks at this facility”

  17. Page 9 Certification of Non-Stormwater Discharges • All outfalls at the site need to be evaluated for the presence of non-stormwater discharges • Examples: • vehicle wash water • process water • sanitary wastewater

  18. Appendix A Certification of Non-Stormwater Discharges • Fill in table and note corrective actions taken

  19. Page 9 (continued) Allowable Non-Stormwater Discharges • List any allowable non-stormwater discharges at your facility • See the Instruction Booklet for allowable discharges

  20. Page 10 - 12 Best Management Practices • Area Specific • Site Wide • Include categories: • Good housekeeping • Minimizing exposure • Preventative maintenance • Spill Prevention and Response • Use BMP Factsheet

  21. Page 13 Spill Response • Standard spill response procedures have been included in the fillinable SWPPP • Include additional spill response procedures for your facility, if you have them • Include your spill prevention and response plan for tanks, fuel pumps, or hazardous materials for your facility, if you have one

  22. Page 14 Vehicle and Equipment Washing • No wash waters from the cleaning of vehicles or equipment shall be allowed to enter the storm drainage system or waters of the state • The Wastewater Management’s Vehicle and Equipment Washing guidelines are included in the fillinable SWPPP • Circle the procedure (1- 4) that you will follow at your facility when washing vehicles or equipment.

  23. Page 15 Sediment and Erosion Control • List all areas that experience active soil erosion (i.e. sand or dirt piles, unpaved parking areas). • Examples of BMPs that limit and control sediment and erosion include: • leaving as much vegetation onsite as possible • minimizing the time that soil is exposed • stabilizing the disturbed soils as soon as possible • slowing down the runoff flowing across the site • providing drainage ways for the increased runoff • removing sediment from stormwater runoff before it leaves the site • preventing runoff from flowing across disturbed areas and diverting the flow to vegetated areas

  24. Page 16 Structural BMPs • List all of the existing and planned structural stormwater controls to treat this residual pollution • Examples include: • Stormwater runs onto vegetated areas and infiltrates • Runoff is routed to a detention or retention basin • Runoff from parking or storage area is passed through an Oil/Grit separator • Runoff goes to dry wells • A biofilter or bioremediation is used to treat runoff.

  25. Page 17 Routine Inspections • Enter how often inspections will be completed (at least once a month) • Enter the name of the person who will conduct the inspections • Record inspection information in Appendix B

  26. Page 17 (continued) Employee Training • Enter how often employee training sessions will occur (at least once a year) • Enter the period of time that new employees will be trained within after they start work. • Record employee attendance information in Appendix C

  27. Page 18 Monitoring Requirements • visual inspection • benchmark monitoring • effluent limitations monitoring • impaired waters monitoring • area-specific monitoring

  28. Quarterly Visual Monitoring Visually inspect stormwater discharges once per quarter, every year for: - color - odor - clarity - floating solids - settled solids - foam - oil sheen other obvious indicators of pollution Page 18 (continued) Benchmark Monitoring • Enter the parameters that your facility is required to monitor for • Enter the name of the person or company that will be collecting the samples • Enter the name of the lab that will be processing the samples

  29. Page 19 Effluent Limitations • Determine if your facility is subject to stormwater effluent limitation guidelines • Use your sector specific information to determine the limitations • Write “No effluent limitations associated with this site”, if your SIC code is not associated with effluent limitations

  30. Page 19 (continued) Monitoring Associated with Discharges to Impaired Waters • Monitoring once a year is required if your facility discharges to an impaired water • Determine if your receiving water is impaired by looking in the 303(d) List found and the Priority Surface Waters list at: http://www.vtwaterquality.org/stormwater/docs/msgp/sw_pl_2006.partA.pdf http://www.vtwaterquality.org/stormwater/docs/msgp/sw_pl_2006.partB-G.pdf • Get assistance in determining whether or not your receiving water is impaired

  31. Page 20 Compliance Evaluation • Choose someone who is knowledgeable of the operations and BMPs at the facility to inspect compliance with SWPPP once a year Endangered Species • Determine if your facility meets one of the criteria listed in Appendix E of the general permit General Requirements • Send a copy of your SWPPP to the Stormwater Section, and keep the original at your facility • Maintain your SWPPP by reviewing, and amending it when appropriate; i.e. construction, or a change in design

  32. Page 21 Certification • Sign to certify your SWPPP - signature must be from an “authorized representative” This includes: - President - Treasurer - Vice president, or a - Person who performs similar policy or decision-making functions for the corporation

  33. Page 22 Summary of Updates • Keep a record of changes made to the SWPPP as a result of monitoring, inspections, or at the request of Agency personnel

  34. Thank You For Your Time For more assistance in preparing your SWPPP, please feel free to contact us. • Stormwater Section (802) 241-3777 • Stormwater@state.vt.us • www.VTwaterquality.org

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