How to find groundwater data
Whether a large city, village, supper club out of town, or campground, if the public is being served water from your well, the owners/operators must sample and report to DNR. All of this public data is available on the DNR website to download. Though the locations of the wells are not public information, most are easily identified through zip codes and name of business. It provides a great first scan of the quality of groundwater in your county.
- Through the DNR Public Water System (PWS) download all groundwater data results provided from public water systems. Options to select county, contaminant, timeframe to help better understand the water quality in your county.
- Though the proximity of each well might not vary on the landscape, it could be aquifers apart in the subsurface. Scan through the DNR well construction reports to help identify the depth of private wells and provide a clearer picture of groundwater quality data.
- Additional information on the DNR groundwater program can be found on the DNR website.
- Contact Christina Anderson or Beth Finzer for more information on accessing groundwater or surface water data, help organizing downloaded data sets, or with any questions about public water systems.
Through an extensive UW - Stevens Point private well monitoring program, sample results have been compiled into a mapping tool. Search county, township, or section to view water quality summaries at different scales. Click here for more information and to launch the viewer.
Interested in contributing private well data to the UW - Stevens Point program? Contact Kevin Masarik for more information on launching a program in your county.
Additional Data Resources
Wisconsin DNR Surface Water Integrate Monitoring System (SWIMS)
Wisconsin Geologic and Natural History Survey
U.S. Geological Survey Wisconsin Water Science Center
UW’s Wisconsin Water Library
Central Wisconsin Groundwater Center