Well Drillers Near Marshall, Michigan

A geological estimate for the Marshall area.

Detailed Summary

Based on synthesis of the sampled well data, the representative hydrogeological profile for the Marshall, MI area begins with surficial layers of sand (often brown, sometimes with clay) ranging from about 20–40 ft, often underlain by alternating sequences of clay and sand/gravel. These glacial deposits typically range from 35–60+ ft thick in most common wells, sometimes more with deeper clay and gravel layers. The most reliable aquifers for residential use are the upper glacial gravel and the deeper consolidated sandstone, which typically begins at 35–80 ft and extends to total well depths (varying regionally, but commonly to 100–160 ft). Shale is occasionally present as a transition bed between clay/gravel and sandstone. Static water levels are usually 8–37 ft below ground. Typical residential wells are 80–120 ft deep (10–15+ GPM, often more). High-capacity or test wells extend much deeper (up to 300 ft), fully penetrating the thick sandstone bedrock aquifer.

Expected Geological Layers