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Well Drillers Near Milltown, Wisconsin

Milltown area wells typically encounter surficial topsoil, followed by thick sand and gravel with local clay zones, and underlain at depth by sandstone and/or traprock.

Showing contractors within 60 miles of Milltown. 51 results found.

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A geological estimate for the Milltown area.

65 ft

Typical Well Depth

34 ft

Static Water Level

Rotary - Mud Circulation

Recommended Method

Detailed Summary

A representative geological profile for the Milltown region, based on a synthesis of multiple well logs, generally shows a surface layer of topsoil or thin organic deposits, underlain by extensive sand and gravel (often with minor clay or hardpan interbeds), sometimes transitioning into clay layers. Below 60–80 ft, wells most commonly encounter sandstone (sandy rock or sandrock) and in some cases a deeper traprock or basaltic formation extending to the bottom of well borings. Water is generally encountered at moderate depths within the sand/gravel or upper sandstone, yielding adequate supply for residential wells at moderate depths.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 2 ftTopsoilThin layer of organic-rich soil, silt, or loamColor: Brown, dark
Hardness: Soft
2 – 22 ftClay/clayey sand or hardpan (locally with gravel)Dense clay, sandy clay, or clay intermixed with gravel; occasional hardpan horizonsColor: Gray-yellow
Hardness: Hard
22 – 62 ftSand and GravelCoarse to medium sand and gravel, sometimes silty or with interbedded clay; primary aquifer zone for domestic wellsColor: Yellow to gray
Hardness: Medium
62 – 83 ftSandstone/SandrockSoft to firm sandstone or sandy rock formation, sometimes noted as silty or fine/coarse texturedColor: Light brown, gray
Hardness: Soft-Firm
83 – 110 ftGravel/Basement Rock (Traprock or Basalt)Hard crystalline ('traprock'), or coarse gravel at base of the well; less common but present in deeper wellsColor: Dark gray-black
Hardness: Very Hard