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Green Bay, Wisconsin

Well Drillers Near Green Bay, Wisconsin

Most wells in the Green Bay area encounter clay or mixed glacial till near surface, underlain by limestone/dolomite bedrock, with occasional minor shale or sand zones. Residential wells typically reach 120-160 feet, while high capacity wells may extend several hundred feet into bedrock.

Showing contractors within 60 miles of Green Bay. 52 results found.

Typical depth
140 ft
Water table
45 ft
Contractors
52

52 Contractors

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View Local Geology Report

A geological estimate for the Green Bay area.

Typical Well Depth
140 ft
Static Water Level
45 ft
Recommended Method
Rotary - Mud Circulation

Detailed Summary

Analysis of representative well logs from Green Bay and environs shows a consistent near-surface cover of clay-rich glacial sediments (35-50 ft thick, often with minor gravel and occasional hardpan layers), overlying a regionally extensive sequence of limestone/dolomite bedrock. In deeper locations or more central areas, minor shale may be present (notably up to 200+ ft in some deeper wells), with some wells reporting sand/gravel or sandstone interbeds. The majority of residential wells terminate within 120-160 ft, sufficient for steady yields of 5-25 GPM. Static water level ranges from 17-80 ft below land surface for standard wells, and is considerably deeper for high-capacity/deep bedrock supplies.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 45 ftClay/Glacial TillBrown to gray clay, sometimes with gravel, stones, or cobbles; non-caving; locally includes hardpan or minor organic-rich topsoil in uppermost foot.Color: Brown, gray, mottled
Hardness: Soft to firm
45 – 55 ftHardpan/Gravelly Zone (occasional)Dense hardpan, gravel, or clayey gravel—present in some logs, represents basal glacial material; may be lithified locally.Color: Varies
Hardness: Very hard
55 – 250 ftLimestone/DolomiteMassive, gray to buff limestone or dolomite; regional bedrock aquifer yields water to most area wells. Locally fractured or solutioned; minor shale partings possible near top.Color: Gray, buff
Hardness: Hard
250 – 545 ftShale (rare/intermittent deep wells)Gray to greenish shale, relatively soft, interbedded with limestone/dolomite; present only in deeper or south-central Green Bay wells.Color: Gray-green
Hardness: Soft to medium
545 – 580 ftSandstone (deep wells only)Slightly limey or dolomitic sandstone, fine- to medium-grained, water bearing; not present in most standard wells.Color: Light brown to buff
Hardness: Medium
580 – 600 ftLimestone/DolomiteContinued limestone/dolomite sequence (deepest wells).Color: Gray
Hardness: Hard

Frequently Asked Questions

A typical residential well in the Green Bay area is drilled to approximately 140 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 45 feet below the surface in this region.

Analysis of representative well logs from Green Bay and environs shows a consistent near-surface cover of clay-rich glacial sediments (35-50 ft thick, often with minor gravel and occasional hardpan layers), overlying a regionally extensive sequence of limestone/dolomite bedrock. In deeper locations or more central areas, minor shale may be present (notably up to 200+ ft in some deeper wells), with some wells reporting sand/gravel or sandstone interbeds. The majority of residential wells terminate within 120-160 ft, sufficient for steady yields of 5-25 GPM. Static water level ranges from 17-80 ft below land surface for standard wells, and is considerably deeper for high-capacity/deep bedrock supplies.