Construction
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Well and heat exchange notification
Wisconsin law requires that a property owner provide advance notice to DNR before construction of any new private well that is not a high capacity well, and advance notice of any heat exchange drillhole construction (geothermal system) that does not…
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Basement wells and well pits
Wisconsin well code has prohibited placing wells in basements since 1953. Basement wells are subject to flooding, sewage backup and other sanitary hazards. Outside wells, terminating above ground level, are generally safe from these hazards. A…
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High capacity well ownership transfer
No department review or approval is required to transfer ownership of a high capacity well along with a property transfer. Within 90 days following a property transfer, the new owner must complete the High Capacity Well & Surface Water…
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High capacity well application review process
Upon receipt of a high capacity well or dewatering application, the DNR water use program completes a groundwater quantity review and reviews the proposed well construction for compliance with the requirements of NR 812, Wis. Adm. Code. If the…
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High capacity well replacements
Under 2017 Wisconsin Act 10, replacement high capacity wells do not require department approval, provided they meet all four of the following criteria.
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High capacity well reconstruction
To "reconstruct" a well means to modify its original construction, including deepening, lining, installing or replacing a screen, and underreaming (s. 281.34(1)(ek), Wis. Stats.). Steps to take to complete a reconstruction of a high capacity well…
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High capacity well application and instructions
A high capacity well is a well that has the capacity to withdraw more than 100,000 gallons per day, or a well that, together with all other wells on the same property, has a capacity of more than 100,000 gallons per day. Residential wells and fire…
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Heat exchange drilling (geothermal systems)
Heat exchange drilling in Wisconsin requires a license.
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Well filling and sealing
Abandoned or unused wells pose a great threat to the safety and quality of groundwater drinking water supplies. An unused well provides a direct path for contaminants and pollutants to the underground aquifers that supply working wells. Wells must…
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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…