Well Drillers Near Dowagiac, Michigan

A geological estimate for the Dowagiac area.

Detailed Summary

A representative geological profile for Dowagiac, based on well logs from across the city and nearby, shows a surficial unit of sand and gravel (with some topsoil), commonly 20-40 feet thick, overlaying alternating intervals of clay (variously sandy, silty, or gravelly) and sand/gravel aquifer units extending to at least 200 ft. The thickest aquifer zones—either sand or sand/gravel, ranging from fine to coarse—commonly occur (~35-90 ft and ~120-200 ft depths); they are separated by gray or brown clay units, which vary from 10 to 65 ft thick. Shallower static water levels (12–50 ft) are typical in newer wells. A typical residential well tapping a 5–15+ GPM source would be completed at 80–130 ft, while high capacity wells go to 180–220+ ft. Almost all wells use rotary (mud) drilling, with PVC casing set and bentonite-slurry grout. Outliers (like deep shale or thin local lenses) were ignored in this synthesis.

Expected Geological Layers