Consultants
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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…
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Groundwater Retrieval Network (GRN)
The following are terms used in the Groundwater Retrieval Network (GRN).
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The Groundwater Retrieval Network
The Groundwater Retrieval Network (GRN) reports well information and well sample result data from several DNR databases. GRN can help you find information about an individual well or analyze regional or statewide groundwater conditions.
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Current groundwater standards
Current public health and public welfare groundwater standards are contained in Ch. NR 140, Wis. Adm. Code.
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Air Permit Search
Notice: Update personal bookmarks to the new link for the button below. Air Permit Search
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Air Pollution Control Operation Permit Renewals FAQ
The following questions and answers explain how to submit an air pollution control operation permit renewal application.
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Registration Permit Options
Registration operation permits (ROP) allow low emitting facilities to quickly register for an air permit. The permits contain facility-wide emission caps as well as monitoring, recordkeeping and reporting requirements. All four registration permit…