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Aniwa, Wisconsin

Well Drillers Near Aniwa, Wisconsin

Aniwa region's typical geology: surficial sand and gravel overlying weathered granite, then hard granite to depth.

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

Typical depth
100 ft
Water table
22 ft
Contractors
51

51 Contractors

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Firkus Well Drilling

5.0 (1)
Amherst, WI 54406
(715) 824-2801
Well Drilling

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View Local Geology Report

A geological estimate for the Aniwa area.

Typical Well Depth
100 ft
Static Water Level
22 ft
Recommended Method
Rotary - Mud Circulation

Detailed Summary

Based on a synthesis of well logs in the Aniwa area, the most representative geological profile is a shallow, unconsolidated sand and gravel aquifer extending generally 10-60 ft bgs (below ground surface), underlain by a transition zone of decomposed/weathered granite (often clayey) to approximately 20–40 ft, grading into hard crystalline granite bedrock that continues to total drilled depths of 150–200+ ft. The most reliable groundwater supplies come from the sand/gravel or fractured/weathered bedrock interface. Wells in this area commonly use rotary mud drilling, are cased through the unconsolidated overburden, and grouted typically to 40 ft with cement. Residential wells targeting 5-15+ GPM are most often completed in the upper 100–200 ft.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 10 ftClay or Silty SandSurface clay, silty sand, or sandy clay occasionally mixed with stones; noncaving; acts as a confining layer.Color: Brown/grey
Hardness: Soft to firm
10 – 50 ftSand & GravelCoarse sand and gravel; major water-bearing zone; highly permeable and caving.Color: Tan/yellow
Hardness: Unconsolidated
50 – 80 ftDecomposed/Weathered Granite (occasionally clayey)Transition zone of decomposed, weathered, or clayey granite; moderately firm, may contain some fine sand or gravel lenses.Color: Reddish to grey
Hardness: Firm to hard
80 – 200 ftHard Granite/Crystalline BedrockRed or green/black hard crystalline granite bedrock, fractured locally; groundwater encountered in upper fractured intervals; beyond 150–200' yields typically drop.Color: Red/green/black
Hardness: Hard rock

Frequently Asked Questions

A typical residential well in the Aniwa area is drilled to approximately 100 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 22 feet below the surface in this region.

Based on a synthesis of well logs in the Aniwa area, the most representative geological profile is a shallow, unconsolidated sand and gravel aquifer extending generally 10-60 ft bgs (below ground surface), underlain by a transition zone of decomposed/weathered granite (often clayey) to approximately 20–40 ft, grading into hard crystalline granite bedrock that continues to total drilled depths of 150–200+ ft. The most reliable groundwater supplies come from the sand/gravel or fractured/weathered bedrock interface. Wells in this area commonly use rotary mud drilling, are cased through the unconsolidated overburden, and grouted typically to 40 ft with cement. Residential wells targeting 5-15+ GPM are most often completed in the upper 100–200 ft.