Over the last century and particularly within the last 40 years, the region in southeastern Wisconsin encompassing the counties of Washington, Ozaukee, Waukesha, Milwaukee, Walworth, Racine and Kenosha, has undergone increasingly rapid urban and suburban development.

Glacial outwash deposits form important aquifers throughout the northern United States and Canada. They provide large groundwater yields because of their generally high hydraulic conductivity.

The Wisconsin Geological and Natural History Survey (WGNHS) in cooperation with the U.S. Geological Survey (USGS) has maintained a ground-water observation-well network since 1946 (Zaporozec, 1996)

Production of sweet corn for processing in the Midwest is concentrated in Wisconsin, Minnesota, and Illinois with these three states accounting for over 60% of the 1991 national production of about 3.3 million tons.

In a 1996 report, I described the problems we had found with the use of rotary drilling mud & cuttings slurry as a grout. I reported we planned to continue to study these problems,

This report describes the use of a three-dimensional computer model to delineate zones of contribution for municipal water-supply wells in Dane County, Wisconsin.