Well Drillers Near Osseo, Michigan

A geological estimate for the Osseo area.

Detailed Summary

Based on synthesis of multiple well logs from Jefferson (Osseo) and surrounding townships in Hillsdale County, the representative subsurface profile consists of glacial till with alternating brown/gray clay rich layers and somewhat laterally variable sand and gravel lenses. Intervals of water-bearing gravel/sand are consistently reported at depths of 30–80 ft, commonly exploited for residential supply. Where wells are deeper (>100 ft), fine sandstone is present below unconsolidated materials. The water table (static level) typically occurs between 5 and 45 feet below grade. Most modern wells are completed with rotary drilling, 5-inch PVC casing, cement or bentonite grout, and wire-wrapped screens set in water-bearing gravel. The average residential well depth is estimated near 70 feet for reliable 5–15+ GPM yield. High-capacity wells or deep sandstone completions may extend to 120+ feet.

Expected Geological Layers