Great Lakes Drilling Co
Allegan, MI49010
Typical Allegan area wells penetrate surficial soils, multiple clay units, and end in a sand and gravel aquifer.
Showing contractors within 60 miles of Allegan. 72 results found.
A geological estimate for the Allegan area.
Typical Well Depth
Static Water Level
Recommended Method
The representative geological profile for the Allegan area, based on a synthesis of well log records from comparable adjacent townships, comprises a surficial sand or sandy topsoil, underlain by sequences of red and gray clays, sometimes with thin sand lenses, and a basal sand and gravel aquifer starting near 60–80 ft. Residential wells typically terminate soon after entering the sand and gravel unit to ensure reliable yields, which range from 10-15 GPM in most cases. Casing is set through the clays and typically terminates near the top of the sand and gravel aquifer. Grouting is done with bentonite slurry. Static water levels commonly fall between 17–20 ft below grade.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 4 ft | Topsoil/Sand | Sandy topsoil | Color: Brown/gray Hardness: Soft |
4 – 18 ft | Clay | Red to gray clay | Color: Red to gray Hardness: Hard |
18 – 45 ft | Clay | Gray clay, may include soft and hard layers | Color: Gray Hardness: Variable (soft/hard) |
45 – 65 ft | Gray Clay | Mostly soft gray clay | Color: Gray Hardness: Soft |
65 – 88 ft | Sand & Gravel | Aquifer sand and gravel; water bearing | Color: Brown/gray Hardness: Loose |