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Wausau, Wisconsin

Well Drillers Near Wausau, Wisconsin

A typical Wausau-area well penetrates a surficial zone of clay (occasionally with gravel or sand), with some sites adding a thin decomposed rock layer, quickly reaching hard granite bedrock that dominates the profile.

Showing contractors within 60 miles of Wausau. 40 results found.

Typical depth
220 ft
Water table
25 ft
Contractors
40

40 Contractors

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View Local Geology Report

A geological estimate for the Wausau area.

Typical Well Depth
220 ft
Static Water Level
25 ft
Recommended Method
Rotary - Mud Circulation

Detailed Summary

Analysis of a cross section of well logs throughout the greater Wausau region reveals a highly consistent geology. Most residential wells begin with a surface clay layer, ranging from 3 to 20 feet, sometimes mixing with sand or gravel and occasionally underlain by a thin decomposed or weathered rock interval. Below this, virtually all wells encounter fractured Precambrian granite to the full depth drilled (typically ~180–300+ feet, depending on yield and location, but sometimes deeper for high-capacity or low-yield sites). The static water level is usually 10–40 ft below ground, and productive residential wells commonly end in the granite at 180–260 ft, though site-specific yields can require deeper drilling.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 6 ftClay (with possible sand/gravel/cobbles)Brown to gray clay, sometimes containing sand, gravel, or cobbles; upper glacial deposits; soft; can be locally mixed with silt or topsoil.Color: Brown/Gray
Hardness: Soft
6 – 25 ftDecomposed/weathered rock (where present)Decomposed or weathered granite, locally soft rock, occasionally mixed with clay or sand; not always present or continuous.Color: Gray/Yellowish
Hardness: Soft to friable
20 – 300 ftGranite BedrockCompetent, fractured Precambrian crystalline granite; highly variable fracture yield; potable water source for most completed wells.Color: Pink to reddish-gray
Hardness: Very hard

Frequently Asked Questions

A typical residential well in the Wausau area is drilled to approximately 220 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 25 feet below the surface in this region.

Analysis of a cross section of well logs throughout the greater Wausau region reveals a highly consistent geology. Most residential wells begin with a surface clay layer, ranging from 3 to 20 feet, sometimes mixing with sand or gravel and occasionally underlain by a thin decomposed or weathered rock interval. Below this, virtually all wells encounter fractured Precambrian granite to the full depth drilled (typically ~180–300+ feet, depending on yield and location, but sometimes deeper for high-capacity or low-yield sites). The static water level is usually 10–40 ft below ground, and productive residential wells commonly end in the granite at 180–260 ft, though site-specific yields can require deeper drilling.