Well Drillers Near Benzonia, Michigan

A geological estimate for the Benzonia area.

Detailed Summary

A representative geologic profile for Benzonia (Benzie County, MI) begins with a thin layer of surficial sand (sometimes with peat or organic-rich zones). This is typically underlain by alternating lenses of clay, silty sand, and sand/gravel. Clay layers vary in thickness (ranging from ~7 to 50 ft), and are frequently interbedded with water-bearing sand and gravel zones that may also include stones or cobbles. The primary productive aquifer for residential wells is consistently found within thick sand or sand/gravel intervals at depths between approx. 60 and 170 ft, although high-capacity wells may be set deeper (170–240+ ft) in similar sand/gravel formations. Static water levels vary considerably with site elevation and well depth, typically ranging from 20 ft to 200 ft below grade, with residential wells averaging a static water level near 80–120 ft. A typical well is drilled by rotary (mud circulation), cased with 5-in. PVC to just above the screened interval, with cement or bentonite grout from surface to near the bottom of casing.

Expected Geological Layers