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Mayville, Wisconsin

Well Drillers Near Mayville, Wisconsin

A typical Mayville area well penetrates unconsolidated clay (sometimes gravelly), soft sediments, and a sequence of dolomitic limestone and shale, reaching bedrock within 80–140 ft; deeper wells encounter alternating limestone, shale, and, in a minority, sandstone (up to ~600 ft).

Showing contractors within 60 miles of Mayville. 98 results found.

Typical depth
120 ft
Water table
50 ft
Contractors
98

98 Contractors

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View Local Geology Report

A geological estimate for the Mayville area.

Typical Well Depth
120 ft
Static Water Level
50 ft
Recommended Method
Rotary - Mud Circulation

Detailed Summary

In the Mayville region, the most typical subsurface profile begins with a significant thickness of unconsolidated clay (sometimes including gravel, stones, or soft sand), generally from ground surface to 30–90 feet—averaging ~55 ft. Below this, hard or silty clay sometimes grades into a weathered or broken dolomitic limestone (Limerock) layer, which transitions to more competent limestone/dolostone. From about 80 ft downward, most wells encounter alternating layers of limestone and shale. High-capacity or deeper wells may reach a deeper sequence of massive limestone, thick shale, then optionally down to sandstone below 600 ft. For residential wells (yielding 5–15+ GPM), total depths of 80–180 ft are typical, with water most commonly sourced from shallow limestone or shale fractures. Static water levels average between 40–60 feet below the surface.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 16 ftClayBrown, silty to sandy clay, uppermost soil zone, occasionally some gravel/stones near baseColor: Brown/Gray
Hardness: Soft
16 – 55 ftClay with Gravel/StonesDense clay with scattered stones and/or gravel—may include soft/silty/clayey intervals or minor sandColor: Brown-Gray
Hardness: Medium
55 – 90 ftLimestone (weathered)Broken or weathered dolomite/limestone, partially clay-filled; transitional bedrock interfaceColor: Gray
Hardness: Soft to Medium
90 – 130 ftLimestone/DolomiteMassive dolomite/limestone, relatively competent; main aquifer zone for residential supplyColor: Gray
Hardness: Hard
130 – 185 ftShaleGray, soft to hard shale, acts as confining layer; water strikes possible in fractured shaleColor: Gray/Greenish
Hardness: Soft to Hard
185 – 240 ftLimestoneLimestone or dolostone intervals, possible water-bearing fractures, deeper wells onlyColor: Light Gray
Hardness: Medium-Hard
240 – 390 ftShaleThick shale (gray/green), less likely to be major aquifer, deeper wells onlyColor: Gray-Green
Hardness: Soft
390 – 615 ftLimestoneMassive limestone/dolomite, interbedded, deeper municipal or high-capacity supplyColor: Gray/Tan
Hardness: Hard
615 – 640 ftSandstoneClean, fine sandstone; only present in deepest municipal/hicap wellsColor: Light Brown/Tan
Hardness: Medium

Frequently Asked Questions

A typical residential well in the Mayville area is drilled to approximately 120 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 50 feet below the surface in this region.

In the Mayville region, the most typical subsurface profile begins with a significant thickness of unconsolidated clay (sometimes including gravel, stones, or soft sand), generally from ground surface to 30–90 feet—averaging ~55 ft. Below this, hard or silty clay sometimes grades into a weathered or broken dolomitic limestone (Limerock) layer, which transitions to more competent limestone/dolostone. From about 80 ft downward, most wells encounter alternating layers of limestone and shale. High-capacity or deeper wells may reach a deeper sequence of massive limestone, thick shale, then optionally down to sandstone below 600 ft. For residential wells (yielding 5–15+ GPM), total depths of 80–180 ft are typical, with water most commonly sourced from shallow limestone or shale fractures. Static water levels average between 40–60 feet below the surface.