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Well Drillers Near North Prairie, Wisconsin

Typical North Prairie area wells encounter surficial sand/gravel, overlying clay or hardpan (often with additional sand/gravel and clay interbeds), then limestone/dolomite bedrock with frequent shale zones. Most residential wells are completed in sand/gravel or uppermost bedrock at 100–200 ft depth, with high capacity wells extending into deeper limestone.

Showing contractors within 60 miles of North Prairie. 55 results found.

C&C Pumps logo

C&C Pumps

1480 WI, Hartford, WI 53027

Phone: (262) 789-7334
Quote Available

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View Local Geology Report ▼

A geological estimate for the North Prairie area.

140 ft

Typical Well Depth

58 ft

Static Water Level

Rotary - Mud Circulation

Recommended Method

Detailed Summary

In the North Prairie region, the predominant geological profile consists of a surface layer of sand and gravel, typically extending 30–60 feet deep, underlain by alternating clay (including hardpan) and sand/gravel layers to approximately 100–130 feet. Shallow bedrock is commonly limestone or dolomite, beginning between 90–130 feet, with major shale (especially blue and gray, often described as hard) present from 80–280 feet in deeper wells. Deeper limestone/dolomite layers can extend from 150 to over 400 feet in high capacity wells. Residential wells yielding 5–20+ GPM are generally completed between 100 and 200 feet; deeper completions (to >400 ft) are rare but occur for higher capacity or dual aquifer settings.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 11 ftSand & GravelSurficial sand and gravel, caving, yellow-tanColor: Yellow/Tan
Hardness: Loose
11 – 35 ftClay/Gravel InterbedsInterbedded clay (occasionally hardpan) and gravel/sand unitsColor: Gray-Brown
Hardness: Medium
35 – 100 ftSand & Gravel with ClayMain sand/gravel aquifer with clay interbeds, sometimes with occasional cobbles/bouldersColor: Gray/Yellow/Brown
Hardness: Loose to Medium
100 – 130 ftLimestone/DolomiteUppermost bedrock, occasionally fractured/broken, may contain thin shale transitionColor: Light Gray
Hardness: Hard
130 – 280 ftShale (Blue/Gray Hard)Thick shale intervals, includes both blue and gray hard shale (may be subdivided as noted in logs), low permeabilityColor: Blue/Gray
Hardness: Hard
280 – 400 ftLimestone/DolomiteLower limestone/dolomite, massive, main water-bearing bedrock for high capacity wellsColor: Gray
Hardness: Very Hard