Where do the deep wells in Southeastern Wisconsin get their water? background for ratification process of Great Lakes Charter (October 20, 2006)

Important efforts are now underway to protect all the water resources of the Great Lakes Basin. The objective of this Web site is to support those efforts and to improve our understanding of ground-water flow in relation to the Great Lakes.

The information on this site is organized in two main parts. The first is a summary of the concepts that govern ground-water flow and ground-water/surface-water interactions. The second part includes details of a case study of a region bordering Lake Michigan that describes the ground-water-flow system and quantifies the relation between ground water and the Lake.