Well Drillers Near Baraboo, Wisconsin

A geological estimate for the Baraboo area.

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