Business
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Current WPDES Wastewater Permit Holders
The Wastewater Program provides an online tool to help individuals find documentation related to final Wisconsin Pollutant Discharge Elimination System (WPDES) individual wastewater permits. The permit search tool is designed for convenient…
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Applying for a WPDES Permit
Application procedures for WPDES permits to discharge wastewater vary by the type of permit. General Permits General permits are used to cover groups of facilities that generate wastewater from relatively simple operations having similar types and…
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Private Onsite Wastewater Treatment Systems (POWTS)
Domestic wastewater is defined as the type of wastewater normally discharged from plumbing facilities in private dwellings or commercial domestic establishments and includes sanitary, bath, laundry, dishwashing, garbage disposal and cleaning…
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Municipal Wastewater Facility Planning
If you are planning to apply for a CWFP loan for State Fiscal Year 2026, and you have not already done so, please submit your facility plan as early as possible to ensure that the DNR is able to review and approve the facility plan prior to the CWFP…
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Joint DNR/DSPS Plan Review Procedures For Large POWTS
Private Onsite Wastewater Treatment Systems (POWTS) that are determined to be "large" will be subject to a joint plan review conducted by the DNR and the Department of Safety and Professional Services (DSPS) and will receive Wisconsin Pollutant…
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Interagency wastewater systems plan review
Plans for Private Onsite Wastewater Treatment Systems (POWTS) are subject to review by the Department of Safety and Professional Services (DSPS), or may require a joint review by the DNR and DSPS.
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Regulating water intake structures
Section 316(b) of the federal Clean Water Act requires, and Section 283.31(6), Wis. Stats., allows the department to require that the location, design, construction and capacity of cooling water intake structures reflect the best technology…
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Holding Tanks for Non-Domestic Wastewater
Wastewaters originating from plumbing fixtures and appliances such as sanitary (toilets), bath, laundry, dish washing, garbage disposal and cleaning wastewaters are defined as domestic wastewater. Wastewater from restaurants is also generally…
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Water Quality Program Policy and Guidance
Guidance Available for Comment We welcome your input on all proposed Water Quality program guidance. The following table lists guidance that is being developed or revised. Feedback related to the documents posted…
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Wastewater General Permits
The Wisconsin Department of Natural Resources (DNR) is authorized under Section 283.35, Wis. Stats. [exit DNR], to issue Wisconsin Pollutant Discharge Elimination System (WPDES) general permits to a designated area of the state authorizing…