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Well Drillers Near St Croix Falls, Wisconsin

Typical St Croix Falls wells encounter a surficial sandy/gravelly layer, followed by sequences of clay and coarse gravel or sand, locally underlain by bedrock (trap rock or limestone) at greater depths or absent in some shallow wells.

Showing contractors within 60 miles of St Croix Falls. 58 results found.

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View Local Geology Report

A geological estimate for the St Croix Falls area.

75 ft

Typical Well Depth

60 ft

Static Water Level

Rotary - Mud Circulation

Recommended Method

Detailed Summary

The representative subsurface profile in the St Croix Falls area consists of a thin topsoil or surficial organic layer (0–2 ft), immediately underlain by interbedded sand, gravel, and occasional lenses of clay (to ~70–80 ft in most wells; deeper, >200 ft in some). Locally, there may be zones of coarse gravel, sandrock, or significant clay beds (esp. 50–75 ft and 75–238 ft in deep wells). Wells rarely penetrate bedrock, but if drilled deeper, hard trap rock or limestone (limerock) is found from ~75 ft or as deep as 300+ ft (only in deepest wells). Most residential wells are completed in the sand & gravel aquifer at ~60–140 ft, with static water levels typically 30–75 ft below ground. Wells yield 6–20+ GPM where thick sand/gravel is present.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
02 ftTopsoilTopsoil or thin organic layer
Hardness: Soft
210 ftSand & Gravel w/ minor claySand and gravel, with sporadic clay or bouldersColor: Brown/Tan/Yellow
Hardness: Medium
1055 ftSand & GravelPredominantly sand and gravel, some coarse gravel beds possibleColor: Brown/Yellow
Hardness: Medium
5575 ftClay w/ Gravel, minor sandClay or clay/gravel interbeds; minor sand bedsColor: Gray/Tan/Red
Hardness: Stiff
75140 ftSand & Gravel (deep aquifer)Thick sand/gravel; may include some sandrock or coarse gravelColor: Yellow/Brown
Hardness: Medium-Soft
140238 ftClay/Gravel (in deeper wells)Dense clay with gravel (locally thick, in deeper wells)Color: Tan/Gray
Hardness: Stiff
238300 ftBedrock (Sandrock, Trap Rock, or Limerock)Sandstone, trap rock or limestone hard bedrock, only encountered in deepest wellsColor: Gray/Black
Hardness: Hard