Well Drillers Near Waukesha, Wisconsin

A geological estimate for the Waukesha area.

Detailed Summary

Based on the synthesis of multiple well logs from the Waukesha area, the most representative subsurface profile consists of: (1) a surficial clay layer; (2) an interval of sand and gravel; (3) a thicker zone of hardpan, sandy clay, or clay with cobbles; (4) underlain by competent limestone or dolomite bedrock. Minor local variations occur, but these four units are routinely present across the area. The limestone bedrock typically serves as the main aquifer zone for residential and municipal wells, and is encountered at median depths of 90–120 ft below ground, with wells commonly finished between 140 and 200 ft, but municipal wells may extend deeper. Static water levels are usually between 65 and 100 ft below ground. Rotary mud drilling is the standard method. Casing is generally set through the entire unconsolidated sequence (typically to the top of limestone), with grout or sealing to comparable depths.

Expected Geological Layers