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Baraboo, Wisconsin

Well Drillers Near Baraboo, Wisconsin

The typical Baraboo region geologic profile is unconsolidated sand/gravel over sandstone bedrock, often with interbedded clay. Residential wells are commonly completed at 80-130 feet, with high capacity wells to 180-285 feet.

Showing contractors within 60 miles of Baraboo. 65 results found.

Typical depth
120 ft
Water table
35 ft
Contractors
65

65 Contractors

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View Local Geology Report

A geological estimate for the Baraboo area.

Typical Well Depth
120 ft
Static Water Level
35 ft
Recommended Method
Rotary - Mud Circulation

Detailed Summary

Based on synthesis of sampled well logs across the Baraboo region, the most common subsurface sequence starts with surficial sand (commonly mixed with gravel), sometimes underlain by clay lenses or streaks. Below these unconsolidated layers, sandstone bedrock—often described as soft to firm, occasionally streaked with gravel or shale—is encountered and typically serves as the main aquifer. Localized gravels or boulders may appear within the sand or at the sand/bedrock contact. Casing is generally set through unconsolidated deposits, terminating in the upper sandstone. Most residential wells are completed just into this sandstone. Static water levels are most frequently reported between 30–40 feet. Pump yields in the 10–25 GPM range are typical for residential use.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 8 ftSandSurficial sand, locally with fine gravel. Unconsolidated, water-bearing.Hardness: Loose
8 – 25 ftGravel (occasional clay lenses)Coarse gravel occasionally mixed with sand or interbedded clay lenses between 15-25 ft.Hardness: Loose
25 – 55 ftSand (with clay or gravel streaks)Sand, locally with clay streaks or occasional gravel.Hardness: Loose to firm
55 – 80 ftClay (or sand/clay/gravel mixed)Clay or mixture of sand, clay, and gravel. Thickness varies but often up to 15-25 ft.Hardness: Plastic
80 – 130 ftSandstone (soft, sometimes with gravel or shale layers)Soft to firm sandstone, first encountered at depths between 60 and 110 ft, water-bearing, sometimes interbedded with thin gravel or shale. Main aquifer.Color: Tan/White/Gray
Hardness: Soft to firm
130 – 185 ftSandstone (firm)Firm sandstone, locally with minor shale or boulders, high capacity wells may extend deeper into this unit for sustained yield.Color: Gray/Tan
Hardness: Firm to hard

Frequently Asked Questions

A typical residential well in the Baraboo area is drilled to approximately 120 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 35 feet below the surface in this region.

Based on synthesis of sampled well logs across the Baraboo region, the most common subsurface sequence starts with surficial sand (commonly mixed with gravel), sometimes underlain by clay lenses or streaks. Below these unconsolidated layers, sandstone bedrock—often described as soft to firm, occasionally streaked with gravel or shale—is encountered and typically serves as the main aquifer. Localized gravels or boulders may appear within the sand or at the sand/bedrock contact. Casing is generally set through unconsolidated deposits, terminating in the upper sandstone. Most residential wells are completed just into this sandstone. Static water levels are most frequently reported between 30–40 feet. Pump yields in the 10–25 GPM range are typical for residential use.