DNR Groundwater Retrieval Network
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Understanding Your Results
How to test your well
Drinking Water Tests for Private Wells | Wisconsin DNR
Test your private well water annually | Wisconsin DNR
Bacteria
Bacteria in Private Wells | Wisconsin Department of Health Services
Nitrate
Nitrate in Private Wells | Wisconsin Department of Health Services
Inorganic Chemicals
Arsenic | Wisconsin Department of Health Services
Lead in Water | Wisconsin Department of Health Services
Manganese in Drinking Water | Wisconsin Department of Health Services
Pesticides
Pesticides in Drinking Water | Wisconsin DNR
Volatile Organic Chemicals
Volatile Organic Chemicals in Drinking Water | Wisconsin DNR
PFAS
Per- and Polyfluoroalkyl Substances (PFAS) | Wisconsin Department of Health Services
PFAS | Wisconsin DNR
General
Drinking Water | Wisconsin Department of Health Services
Drinking Water Concerns | Wisconsin Department of Health Services
Contaminants in Drinking Water | Wisconsin DNR
Private water supply specialists | Wisconsin DNR
Wisconsin Department of Natural Resources
101 S. Webster Street PO Box 7921
Madison, WI 53707-7921
Call 1-888-936-7463 (TTY via relay: 711) from 7AM to 10PM
Email Customer Service:
CSWEB@wisconsin.gov
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