Directional drilling services inc
Green Bay, WI54311
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. 29 results found.
A geological estimate for the Green Bay area.
Typical Well Depth
Static Water Level
Recommended Method
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.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 45 ft | Clay/Glacial Till | Brown 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 ft | Hardpan/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 ft | Limestone/Dolomite | Massive, 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 ft | Shale (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 ft | Sandstone (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 ft | Limestone/Dolomite | Continued limestone/dolomite sequence (deepest wells). | Color: Gray Hardness: Hard |