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Well Drillers Near Somerset, Wisconsin

Typical Somerset area wells encounter a surficial sand/gravel or clay unit, transitioning to clay with gravel/cobbles or hardpan, then lime/limestone or sandstone bedrock at depth. Most productive aquifers are found in these consolidated layers below roughly 90-150 feet.

Showing contractors within 60 miles of Somerset. 61 results found.

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A geological estimate for the Somerset area.

140 ft

Typical Well Depth

95 ft

Static Water Level

Rotary - Mud Circulation

Recommended Method

Detailed Summary

The most common geologic profile for wells in the Somerset, WI region begins with a surface layer of clay, sand, or sand and gravel, typically extending 25-120 feet. Below, a transition to dense clay with cobbles/boulders or a hardpan layer is encountered, extending to approximately 140-200 feet. The primary aquifer zone is most often found in either hard limestone or sandstone ('sandrock'), generally from 140-220 feet. Some wells may encounter limerock yellow hard, limestone, or white/hard sandstone at these depths. Static water levels vary, but are typically between 60-145 feet below ground, with residential well yields (5-15+ GPM) usually achieved between 95-200 feet depth, and high capacity wells often completed near or just below the main bedrock aquifer. Casing is typically set to just above the consolidated aquifer layer, and bentonite or cement grout is installed to similar depth. Drilling is by rotary mud circulation or similar method.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 25 ftClay or Sand/GravelSurface layer of brown/tan clay, sand, or sand & gravel. May be loose to firm; occasionally includes some silt.Color: Tan/brown, occasionally yellow or buff
Hardness: Loose to firm
25 – 120 ftSand & Gravel or Clay with Gravel/CobblesCoarse sand and gravel, possibly with some clay or hardpan, occasional boulders or cobbles.Color: Brown/tan, occasionally mixed color
Hardness: Soft to dense
120 – 190 ftClay/Hardpan (sometimes with Cobbles/Boulders)Dense clay or hardpan, often with gravel, cobbles, or boulders present. Transitional to bedrock; difficult drilling.Color: Tan/brown/gray
Hardness: Dense/Hard
190 – 220 ftLimestone or Sandstone ('sandrock')Consolidated bedrock, either limestone or white/yellow hard sandstone. Primary aquifer for area wells.Color: White/yellow/gray
Hardness: Hard/Firm