Hydrogeologic Properties of the Ordovician Sinnipee Group at Test Well BN-483,211 Better Brite Superfund Site, De Pere, Wisconsin

摘要

Test well BN-483, near the Better Brite Superfund Site, was drilled to a total211u001edepth of 169 feet below land surface. The Ordovician-age Sinnippee Group, which 211u001eincludes the Galena Dolomite, and the Decorah and Platteville Formations, was 211u001eencountered from about 25 feet below land surface to a depth of about 160 feet. 211u001eAnalysis of core samples and single-well aquifer tests of the dolomites indicate 211u001elow matrix porosity and low horizontal hydraulic conductivity. Significant 211u001edifferences in hydraulic head between Sinnipee Group dolomites and the underlying 211u001eSandstone Aquifer (represented by the Glenwood Formation sandstones in test well 211u001eBN-483) are the result of municipal pumping from the Sandstone Aquifer.