Environmental Protection
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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
Last year, the DNR received a record number of Clean Water Fund (CWFP) applications and expects a similar number this year. Due to the anticipated number of submittals, if you plan to apply for a CWFP loan for State Fiscal Year 2025 and you have…
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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 below should be emailed to staff…
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Wastewater General Permits
Starting on July 1, 2022, applicants submitting a Notice of Intent (NOI) for coverage under any wastewater general permit must submit an electronic NOI (eNOI). The eNOI is available on the online ePermitting System by logging in through the Water…
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Summary of January 2005 Government Accountability Office (GAO) Findings on Wastewater System Funding Recommendations for Security Improvements
The federal Senate Environment Committee asked the Government Accountability Office (GAO) to identify how wastewater security measures should be prioritized and funded. The final report was issued in January 2005. A summary of the findings are:
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Types of WPDES Permits
Industrial wastewater discharge The DNR administers 38 major industrial permits issued primarily to paper mills and steam electric facilities. Major industrial permits are issued for industries with significant wastewater volumes which can impact…