External Services
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What you can do to help
Certain activities like walking your dog or driving your car can leave pollutants on the ground that can wash off in rain water. All the hard surfaces you use every day, such as parking lots, driveways, rooftops, and sidewalks, dramatically…
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Photo Gallery: Storm Water Best Management Practices
Best Management Practices (BMPs) improve water quality, protect downstream water bodies, reduce flooding, and can be aesthetically pleasing. This photo gallery provides examples of BMPs for commercial, residential, and industrial sites.
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Frequently Asked Questions (FAQ)
General storm water questions My land is being flooded by water draining from another property. Can the DNR do something about it? No. The DNR’s authority is limited to regulating the pollutants carried in storm water runoff and it does not…
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Learn More About Storm Water Runoff
Urban storm water runoff contains pollutants from roads, parking lots, construction sites, industrial storage yards and lawns. Learn how these pollutants affect water quality, what Wisconsin is doing to reduce pollutants in runoff, and how you can…
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Summary of SIC codes required to apply for an industrial storm water permit
This is a summary from Subchapter II of NR 216, Wis. Adm. Code. Refer to NR 216 for additional information on Standard Industrial Classification (SIC) Codes. (2) CATEGORIES. This subchapter applies to discharges originating from industrial…
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Industrial storm water permit overview
Learn more about the different types of industrial storm water permits and requirements.Tier 1 and Tier 2 industrial facilitiesNatural Resources Chapter 216, Wis. Adm. Code, (NR 216) lists certain types of industries in the state that need to obtain…
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Industrial storm water permit no-exposure facilities
No exposure means all industrial materials and activities at a facility are protected by a storm-resistant shelter to prevent exposure to rain, snow, snowmelt and/or runoff.
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Industrial storm water permit forms
Use the forms below to apply for general industrial storm water discharge permits and meet compliance requirements.
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Industrial storm water permits
By Feb. 15th of each calendar year, industrial storm water permittees are required to perform an annual check to determine whether their facility discharges a pollutant of concern via storm water to a waterbody subject to a state and federally…
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Storm water staff
Choose the county in which your facility/site/municipality is located for storm water regional contacts, or view the list of storm water staff for Central Office. Storm water county contacts Choose a county: