Well Drillers Near Oconto Falls, Wisconsin

A geological estimate for the Oconto Falls area.

Detailed Summary

Based on representative well log data for the Oconto Falls, WI region, the average stratigraphy is characterized by an initial sand or sandy clay zone (surface to ~15 ft), succeeded by a thick sequence of clay (often with gravel and/or stones, ~15–65 ft). This is underlain by alternating layers of limestone/dolomite and sandstone (typically from ~65–120 ft, sometimes deeper). In some wells, hardpan or gravel layers occur at the base of the drift. Wells typically are cased through overburden and into the uppermost bedrock, with the limestone/dolomite and sandstone units providing the primary aquifers. High-yield residential wells are customarily drilled to 90–120 ft, reaching the main limestone/dolomite aquifer, while high-capacity wells may reach depths of 150–200 ft. The static water level is most commonly between 10 and 40 ft below surface.

Expected Geological Layers