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Wales, Wisconsin

Well Drillers Near Wales, Wisconsin

The typical geological profile in Waukesha County, WI features a surficial deposit of clay/sandy clay with interbedded sand & gravel, underlain by limestone or dolomite bedrock.

Showing contractors within 60 miles of Wales. 104 results found.

Typical depth
130 ft
Water table
70 ft
Contractors
104

104 Contractors

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View Local Geology Report

A geological estimate for the Wales area.

Typical Well Depth
130 ft
Static Water Level
70 ft
Recommended Method
Rotary - Mud Circulation

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

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 15 ftClay/Sandy Clay (may contain gravel, cobbles, boulders)Surface deposits of brown/tan/gray clay or sandy clay with occasional cobbles/gravel. Caving: variable.Color: Brown/Tan/Gray
Hardness: Soft
15 – 60 ftSand & GravelUnconsolidated sand and gravel, water-bearing, often gray/brown. Transition zone between clay and bedrock.Color: Brown/Gray
Hardness: Loose
60 – 120 ftSandy Clay/Clay or Sand & Gravel (variable, transitional)Interbedded sandy clay, clay, and sand & gravel; some lateral variability but generally fine-grained with lower permeability.Color: Brown/Gray
Hardness: Soft to Firm
120 – 150 ftLimestone/Dolomite (top, often thinly bedded, may be shaley)Limestone or dolomite, sometimes shaley or thin bedded at the upper part of bedrock; gray to yellow, competent, non-caving.Color: Gray/Yellow
Hardness: Hard
150 – 250 ftLimestone/Dolomite (massive, water-bearing)Main bedrock aquifer, massive to fractured limestone/dolomite. Good water yield. Color gray to yellow. Few shale zones.Color: Gray/Yellow
Hardness: Hard

Frequently Asked Questions

A typical residential well in the Wales area is drilled to approximately 130 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 70 feet below the surface in this region.

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.