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Well Drillers Near Benzonia, Michigan

Typical Benzonia well starts with surficial sand (with or without organic material), then a thick sequence of alternating clay and sand/gravel, with the main aquifer in clean sand or sand/gravel, often with stones, at depth. Most wells are cased with PVC and screened, and drilled by rotary methods.

Showing contractors within 60 miles of Benzonia. 31 results found.

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A geological estimate for the Benzonia area.

150 ft

Typical Well Depth

90 ft

Static Water Level

Rotary - Mud Circulation

Recommended Method

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

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 5 ftSand/Topsoil (w/possible peat)Surficial sand and/or organic topsoil, occasionally includes black peat or brown sand.Color: Brown/Black
Hardness: Soft
5 – 35 ftSandy Clay/Clay with SandMixture of clay and sand, commonly brown; layers may be interbedded.Color: Brown/Gray
Hardness: Medium
35 – 60 ftClayMassive or laminated clay, sometimes red or gray, often with hard intervals.Color: Red/Gray/Brown
Hardness: Hard
60 – 80 ftSand and Gravel (w/Stones possible)Water-bearing sand and gravel, sometimes with stones; moderate to high permeability.Color: Tan/Gray
Hardness: Loose
80 – 120 ftClay or Clay with SandIntermediate clay layers, some silty or sandy, possibly red or gray.Color: Brown/Gray/Red
Hardness: Firm
120 – 170 ftSand/Gravel (Main Aquifer)Thick, clean sand and gravel, typically the primary aquifer zone for residential wells; may be interspersed with stones.Color: Light brown/tan to gray
Hardness: Loose
170 – 225 ftSand/Gravel with Stones (Deep Aquifer, High Capacity Wells)Coarse sand and gravel with frequent stones/cobbles; used by deeper/high capacity wells.Color: Tan/Gray
Hardness: Loose
225 – 293 ftSand (Basal, locally interbedded with clay or stones)Deeper sand, sometimes in mixture with clay or gravel, forms base of deepest wells.Color: Tan/Gray
Hardness: Loose