
Kraai Well Drilling & Water Softening
Shelbyville, MI49344
The typical Shelbyville-area well encounters a sequence of clay, sand, and sand/gravel formations, with water-bearing sand and gravel most commonly found at depth.
Showing contractors within 60 miles of Shelbyville. 76 results found.
A geological estimate for the Shelbyville area.
Typical Well Depth
Static Water Level
Recommended Method
Across the Shelbyville region, household wells most commonly penetrate an upper sequence of clay and sand in alternating layers, grading deeper into extensive, water-bearing sand and gravel units. Clays are generally present in two or more intervals, sometimes brown over gray, but always interbedded with sand or sandy/gravelly strata. The uppermost water-bearing zone is most often sand and gravel, encountered at variable depths but consistently below at least one significant clay layer. Total well depths for residential use average around 65 feet, with static water levels typically between 15 and 45 feet below grade. High-capacity wells may be drilled deeper, targeting thicker lower sand and gravel aquifers.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 7 ft | Clay (often with organics, brown or gray) | Firm to stiff plastic clay, sometimes with topsoil/organics or marsh, brown or gray coloration. | Color: Brown to gray Hardness: Firm-plastic |
7 – 30 ft | Sand (fine to medium, sometimes with gravel or trace clay) | Clean fine to medium sand, locally becoming sandy gravel or with interbedded thin clay seams. | Color: Gray to light brown Hardness: Loose-medium |
30 – 40 ft | Clay (gray or brown) | Dense, laminated gray or brown clay, typically forms an aquitard. | Color: Gray to brown Hardness: Stiff |
40 – 60 ft | Sand and gravel | Medium to coarse sand and fine gravel; main residential aquifer, often noted as water-bearing. | Color: Gray Hardness: Loose |
60 – 82 ft | Sand and gravel (water-bearing) | Coarse sand and gravel, clean and unconsolidated, principal aquifer for high yields. | Color: Gray/tan Hardness: Loose |
82 – 120 ft | Clay and interbedded fine sand (locally present, not always encountered) | Thick gray clay with seams of fine sand; less consistent, only in deeper/high-capacity wells. | Color: Gray Hardness: Stiff |
120 – 138 ft | Sand and Gravel (deep, confined, water-bearing, less common) | Deep, confined sand and gravel aquifer, major source for high-capacity wells. | Color: Gray Hardness: Loose |