
Kopecky Well Drilling-Pump Services
Manistique, MI49854
Typical Manistique area residential well: surficial sand, gravel, and clay, overlying thick sequence of limestone (often with interbedded shale, clay, and dolomite), water from fractured or sandy limestone.
Showing contractors within 60 miles of Manistique. 3 results found.
A geological estimate for the Manistique area.
Typical Well Depth
Static Water Level
Recommended Method
Wells in the Manistique area most commonly encounter an upper layer of sand and/or gravel, sometimes interbedded with clay or loam, to depths of approximately 10–30 ft. Below this, a substantial clay or clay-gravel unit is often present, ranging from 10–50 ft in thickness. The remainder of the well interval almost universally consists of limestone bedrock—commonly with interlayers of tan, brown, white, and gray limestone, frequent minor inclusions of shale, dolomite, gravel, and clay, and occasional water-bearing fractures or sandy seams. The water table is encountered near the top of the bedrock or within the limestone, typically at variable depths depending on local elevation. Most residential wells achieve yields of 10–15+ GPM in the depth range of 100–140 ft, with deeper wells increasing the likelihood of encountering larger water-bearing fractures for higher capacity needs.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 3 ft | Sand / Loam / Gravel | Brown to sandy loam or sand, locally with gravel or topsoil. Occasional surface clay. | Color: Brown/gray Hardness: Loose to firm |
3 – 28 ft | Clay / Sandy Clay / Gravelly Clay | Mostly red or gray clay, sometimes sandy or gravely; locally includes some stratified sand or gravel seams. | Color: Red/gray Hardness: Soft to stiff |
28 – 50 ft | Transition Zone (Gravel/Sand/Clay/Weathered Limestone) | Interbedded gravel, sand, and weathered limestone; may locally include broken limestone or cherty horizons. | Color: Varied—gray, brown, tan Hardness: Loose to moderately hard |
50 – 100 ft | Limestone and Interbedded Formations | Gray, tan, brown, or white limestone, commonly cherty in sections; may include dolomite, shale, clay seams, or minor sand—water-bearing features often encountered in this interval. | Color: Gray/tan/brown/white Hardness: Hard |
100 – 140 ft | Massive Limestone | Predominantly limestone, with sparse interbeds of shale or clay; fractures and sandy seams present, principal aquifer zone for higher-yield wells. | Color: Gray/tan/white Hardness: Very hard |
140 – 160 ft | Lower Limestone (Locally with Dolomite) | Gray to tan limestone, potentially with dolomite, minor clay, and dark streaks; only encountered in deepest sampled wells. | Color: Gray/tan Hardness: Very hard |