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Waukesha, Wisconsin

Well Drillers Near Waukesha, Wisconsin

The typical geological profile for the Waukesha region features a sequence of clay, sand/gravel, hardpan or clay cobbles/silty clay, and limestone/dolomite bedrock, with residential wells commonly drawing from the upper limestone layers.

Showing contractors within 60 miles of Waukesha. 90 results found.

Typical depth
180 ft
Water table
80 ft
Contractors
90

90 Contractors

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View Local Geology Report

A geological estimate for the Waukesha area.

Typical Well Depth
180 ft
Static Water Level
80 ft
Recommended Method
Rotary - Mud Circulation

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

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 10 ftClayBrown to gray clay, silty or sandy in placesColor: Brown/Gray
Hardness: Soft
10 – 45 ftSand and GravelClean to silty sand and gravel, occasional cobbles, good permeabilityColor: Tan/Gray
Hardness: Loose
45 – 90 ftHardpan / Clay / Sandy Clay / Clay with CobblesDense hard clay, sandy or with gravel/cobbles, sometimes called hardpan or containing siltColor: Brown/Gray/Blue
Hardness: Stiff to hard
90 – 200 ftLimestone / Dolomite (Bedrock)Competent limestone or dolomite, fractured in some intervals, primary water-bearing zone for most wells (uppermost 20–60 ft often most productive). Niagara Dolomite common.Color: Light gray to tan
Hardness: Hard

Frequently Asked Questions

A typical residential well in the Waukesha area is drilled to approximately 180 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 80 feet below the surface in this region.

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.