Property/Site Owners
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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…
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Wisconsin Pest Control Pollutant Discharge Permits
Wisconsin General Permits are available for pest control treatment projects that have a pollutant discharge to a water of the state. The four Wisconsin WPDES general permits listed below were first issued in October 2011 and reissued effective…
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Resources for homeowners and farmers
The following resources describe things homeowners and farmers can do to reduce polluted runoff, related to the Wisconsin River Basin TMDL.
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Groundwater forms
Groundwater Monitoring Inventory Form 3300-67 and Instructions [PDF] Groundwater Monitoring Well Information Form 4400-89 and Instructions [PDF] Monitoring Well Construction and Development Forms 4400-113A and 4400-113B and Instructions [PDF]…
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Look up groundwater and well data
To learn about the likely quantity and quality of groundwater in a geographic area, you will want to find data from several sources. Groundwater Quality and Basic Well Parameters Groundwater quality and basic well parameters can be found in the…
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Recommendations for arsenic in drinking water
Special Well Casing Depth Area for Outagamie and Winnebago Counties - Effective October 1, 2004 Special casing areas have been established by DNR for specific areas within the arsenic advisory area where naturally occurring arsenic contamination is…
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Arsenic – Occurrence in Wisconsin
Private well sampling Map 2014 - 2019 Beginning in 2014 the department has required arsenic sampling when pump work is done on existing wells. The map is from the 35,000+ samples collected over the first four and a half years. The map depicts the…
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Special casing area requirements for arsenic
For Outagamie and Winnebago counties (effective October 1, 2004)
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NR 140 Groundwater Quality Standards Update
Subscribe to NR 140 UpdatesAs part of a continuing commitment to protect public health and the environment, the DNR periodically updates groundwater quality standards in ch. NR 140, Wis. Adm. Code.
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Wisconsin's groundwater law
Wisconsin's groundwater law, Ch. 160, Wis. Stats., established the framework for a comprehensive approach to protect public health and welfare and the environment. The intent of this law is to minimize the concentration of polluting substances in…