Managing Industrial Stormw ater In Minnesota For Auto Recyclers of Minnesota Melissa Wenzel Industrial Stormwater Program 651- 757-2816 wq-strm3-20c
What is Stormw ater? Stormwater is site runoff or runon from: ● Rain ● Snow, sleet, hail ● Snowmelt When contaminated with site materials, stormwater affects water quality 2
Why Do We Care about Stormw ater? ● Mismanaged fluids and sediments that contaminate stormwater, lead to polluted lakes and rivers ● Affect: ● the ability of aquatic life to survive ● fish spawning areas and ● food source habitat 3
Why do YOU YOU care about stormw ater? ● Benefits of complying with our Industrial Stormwater Permit: ● Increased efficiency through pollution Prevention (saves you $) ● Increased compliance in solid waste/hazardous waste ● Protection of Minnesota’s waters ● Ramsey County is Happy! 4
Who Must Apply for a Stormw ater Permit? Facilities with activities that fall into one of ten categories of industrial activity, including: ● Sector M: Automobile Salvage Yards: SIC 5015 ● Sector N: Scrap and Waste Material Recycling: SIC 5093 Complete list of SIC codes are in application instructions 5
What’s Included in Sector M & Sector N ? Dismantling or wrecking motor vehicles for the purpose of recycling or selling parts or scrap, wholesale or retail: ● Automobile engines ● Automobile parts ● Motor vehicle parts ● Motor vehicle scrap -also- ● Assembling, breaking up, sorting, and wholesale distribution of scrap and waste materials (Sector N) 6
7 What Industrial Activities Are Significant?
What Industrial Materials and Activities Are Not Significant? ● Containers and tanks sealed and free from deterioration ● Adequately maintained yard vehicles ● Completely covered/plugged dumpsters ● Materials that are stored outside that do not cause polluted runoff ● Office buildings and office parking lots 8
Sources of Pollutants: ● Fluids from vehicles ● Refrigerants ● Mercury switches ● Leaking batteries ● Lead parts ● Solvents and contaminated rags 9
Pollutants We Are Concerned About for Sector M/N ● Total Suspended Solids (TSS) ● Total Aluminum (health effects, aquatic life) ● Total Iron (staining, clogging; at high levels; aquatic life) ● Total Lead (a nerve toxin) ● Total Mercury (a nerve toxin) ● Oil and grease, fluids (may contain metals) 10
Remove fluids to avoid soil contamination and contaminated stormwater 11
Staining indicates soil contamination that can move with stormwater flow 12
Storing batteries indoors or under cover avoids leaking battery acid which contaminates soil & water 13
Good Housekeeping Avoids Contamination of Stormwater 14
Stream Impacted by Sediment
Industrial Stormw ater Work Group ● Aggregate and Ready Mix Association ● Aggregate Industries Auto Recyclers ● Salvage yards of Minnesota- ● Auto recyclers ● Electrical companies Eric Schulz ● Mining ● Petroleum refining ● Manufacturing ● MN Chamber of Commerce ● Government agencies (MNDOT, MAC) ● Cities that receive industrial stormwater ● Consultants ● Environmental Groups ● MPCA staff, supervisors, managers 16
Industrial Stormw ater Multi-Sector General Permit Requirements: ● Development of a Stormwater Pollution Prevention Plan (SWPPP) ● Create Best Management Practices (BMP’s) ● Benchmark monitoring— this is new 17
Sector-Specific Requirements Each sector would have specific requirements for: ● What pollutants to monitor for and how often ● Sector-specific benchmarks ● Some specific BMP’s ● Multi-sector requirements 18
Areas to Assess for Pollutants ● Vehicle fluid, fuel transfer & storage areas ● Vehicle dismantling areas ● Vehicle storage areas ● Parts storage areas ● Parts maintenance areas ● Tire storage areas 19
BMP’s Required for Sector M and N ● Drain vehicles of fluids ● Inspect vehicles and equipment for signs of leakage ● Inspect areas where vehicles, parts, batteries and fluids are stored ● Inspect storage areas for mercury switches ● Train employees in handling of vehicle fluids, fuels, solvents, mercury switches, refrigerants 20
BMPs to help minimize Stormw ater Contamination: ● Work inside buildings ● Indoor battery storage ● Manage runoff/runon ● Good housekeeping ● Recycle fluids, fuel, batteries, mercury switches, lead battery cable ends and wheel weights ● Salvage Yard Manual 21
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You Have Choices in BMP’s to Use ● Plan your BMP’s early ● Document BMP’s in your SWPPP ● Use your SWPPP as a guide to manage your site 23
Benchmark Monitoring Sector M & N ● Inspect, manage, maintain BMP’s. ● Sample 4 times in the 2 nd year of the permit, compare average to benchmark. ● If you fail benchmark, make changes to BMPs, document in the SWPPP, repeat benchmark monitoring. ● If benchmark is exceeded again, a report must be submitted. May need an individual permit. 24
How Do I Obtain the Permit? ● Apply now, if you currently do not have coverage ● Apply for new permit ● No permit fee-annual fee only. Fill out annual reports, self-inspect. ● If your facility already has an individual discharge permit, stormwater requirements will be inserted. 25
What is No Exposure? All significant industrial materials and activities are protected from: • Rain • Snow • Snowmelt • Run-off by a storm resistant shelter 26
What Advantage is Achieving No Exposure? ● Conditional exclusion from the industrial stormwater permit ● No SWPPP, no annual fee, no annual reports, no monitoring ● Ramsey County will appreciate your efforts! ● Stormwater contamination is avoided=happy fish! 27
How Do I Obtain No Exposure Exclusion? ● All significant materials/industrial activity protected from stormwater ● Submit the permit application and No Exposure Certification Section every 5 years ● Submit a copy of the certification, upon request, to the municipality in which the facility is located 28
THANK YOU! Questions? 29
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