Well Drillers Near Mayville, Michigan

A geological estimate for the Mayville area.

Detailed Summary

Based on a synthesis of well logs from Mayville and surrounding areas, the geology is dominated by 10–20 ft of surficial sand, followed by 30–90 ft of clay (often with occasional gravel or sand lenses mixed in), then 10–20 ft of coarse gravel, grading at 50–120 ft into a significant clay or hardpan unit (50–100 ft thick and sometimes interbedded with gravels). Bedrock is most consistently massive to soft sandstone, typically reached between 125–280 ft, though can be deeper. The most common residential wells tap into deep gravel layers above bedrock or into the top few tens of feet of sandstone. Static water levels are commonly 10–50 ft below grade for cased wells, occasionally shallower in flowing well settings. Rotary with mud circulation is standard. Grouting is predominantly bentonite slurry or cement. Casing is nearly always 5 in. PVC to 70–220 ft. Most household wells yielding 10–15+ GPM are at 80–150 ft; high-capacity wells and deeper bedrock supplies may extend to 250–350+ ft.

Expected Geological Layers