Home Wisconsin Groundwater Programs Central Wisconsin Groundwater Center, University of Wisconsin - Stevens Point Program to help Wisconsin citizens and governments manage groundwater wisely, through education, public information, applied research, and technical assistance. Take a look at the DNR Groundwater Retrieval Network for groundwater data from the 1970s to the present.
Site also has a nice listing of groundwater publications available online and in print.
The GCC, composed of representatives of state agencies with groundwater protection responsibilities, attempts to improve and coordinate state agencies' groundwater management activities. U.S. Geological Survey - Wisconsin District Office USGS is the Federal agency responsible for providing hydrologic information and for assessing the Nation's water resources. The Wisconsin District Office Site makes many downloadable publications available.