Preliminary Model Design And Literature Review For The Sandstone Aquifer System In Sourtheastern Wisconsin

This project was designed to integrate data from the study of rock core, downhole geophysical logging, in-situ hydraulic testing, and isotopic and geochemical analysis of porewater from the Maquoketa Formation at two sites in Waukesha County, Wisconsin, in order to investigate the hydraulic properties of this major regional confining unit.

The principal objective of this report is to determine what is well known and what is less well known about the regional groundwater system in southeast Wisconsin in preparation for a comprehensive model aimed at addressing important water-supply issues. This overall objective is addressed in two ways: first, by the development of a fully three-dimensional screening model for southeast Wisconsin based on previous studies, and, second, by a thorough review of the available data needed to quantify hydrogeologic parameters. Both tasks have as a major aim the identification of gaps in our understanding of the groundwater system.