Well Drillers Near Wales, Wisconsin

A geological estimate for the Wales area.

Detailed Summary

Based on synthesis of sampled well logs from Waukesha County (WI), the most common sequence is a surface layer of sandy clay, clay, or clay with gravel/cobbles, often transitioning through sand and gravel intervals, followed by a persistent limestone/dolomite bedrock. Some logs show limited shale or shaley zones within the carbonate section, but consistent thick clay-only layers or extremely deep unconsolidated materials are present only as local anomalies. The transition from unconsolidated/glacial materials to competent bedrock typically occurs between 70 and 150 feet. Wells that yield 5–15+ GPM for residential use frequently case through all unconsolidated zones and set the pump just into limestone/dolomite below the sand/gravel aquifer. High-capacity wells are drilled significantly deeper within the bedrock to secure higher yield. Most wells employ rotary mud circulation; casing to bedrock is standard, with cement or bentonite grout sealing the upper interval.

Expected Geological Layers