Bill Cragg Water Well Drilling
Caro, MI48723
Typical Caro area well profile: glacial drift (clay, sand/gravel) overlying bedrock (shale/sandstone). Residential wells typically 100-220 ft; high yields from deep sandstone aquifers.
Showing contractors within 60 miles of Caro. 49 results found.
A geological estimate for the Caro area.
Typical Well Depth
Static Water Level
Recommended Method
Based on a synthesis of regional well logs, the Caro area typically exhibits a sequence of Quaternary glacial drift (clay, sand, and gravel layers) from surface to depths of ~100-140 ft, underlain by alternating layers of shale and sandstone. Shallower wells often terminate in coarse sand/gravel or shallow sandstone, but most high-yield or high-capacity wells penetrate deeper into fractured or porous sandstone aquifers (often at 150-220+ ft). Shale intervals are common between and above these aquifers. The most consistent sequence is surface clay transitioning through sand/gravel, then into alternating shale and sandstone. Static water levels are moderate (15-45 ft below grade). Bedrock sandstone is the principal source for large capacity yields (>10 GPM), with typical residential wells set from 100-220 ft depending on desired yield and geology at the site.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 15 ft | Clay | Brown or gray, commonly dense, silty clay as part of glacial drift. | Color: Brown/Gray Hardness: Soft |
15 – 40 ft | Sand/Sand & Gravel | Fine to coarse sand and occasional gravel, water-bearing, glacial origin. | Color: Brown/Gray Hardness: Loose to moderately compact |
40 – 80 ft | Clay/Clay & Gravel | Interbedded clay with occasional gravel, acts as an aquitard. | Color: Gray/Brown Hardness: Firm |
80 – 140 ft | Sand & Gravel/Hardpan | Mixed sand, gravel, and occasional hardpan or compacted till. | Color: Brown/Gray Hardness: Medium to dense |
140 – 160 ft | Shale | Thin to medium bedded black or white shale, locally layered with limestone. | Color: Black/White Hardness: Moderately hard |
160 – 220 ft | Sandstone (with minor shale interbeds) | Water-bearing white/remanent sandstone, fractured and highly productive in lower interval; may include minor shale laminations. | Color: White/Tan (minor gray) Hardness: Hard |