
B&B Well Drilling
Leonard, MI 48367
The typical stratigraphy for Leonard and nearby regions is a sequence of surficial sand and gravel, thick interbedded clay or clay-rich materials, often with deeper water-bearing sands or gravels, and possible thin zones of boulders or hardpan. Most residential wells target sand/gravel aquifers between 70–150 ft, with static water levels generally 30–60 ft below grade.
Showing contractors within 60 miles of Leonard. 81 results found.

















Check depths and logs of existing wells in the area before you drill.
Open well map →Costs, permits, maintenance tips for private wells in Michigan.
Open guide →A geological estimate for the Leonard area.
Based on analysis of sampled well logs, the subsurface geology around Leonard is commonly: (0–1 ft) topsoil, (1–40 ft) sand/gravel or sandy clay, (40–110 ft) predominantly clay with interbeds of sand, gravel, or clay/gravel mixtures, transitioning at depth (110–200 ft) to sandy/gravelly aquifers that provide the primary water supply. The most typical residential wells are completed at 120–150 ft, with high capacity/large residential yields possible to 180–200 ft. Static water levels are most commonly 30–60 ft. Nearly all wells use rotary mud drilling, 5 in. PVC casing to nearly total depth, and bentonite slurry grout.
| Depth (Feet) | Formation Type | Description | Characteristics |
|---|---|---|---|
| 0 – 1 ft | Topsoil | Thin organic topsoil layer | Color: Brown Hardness: Soft |
| 1 – 36 ft | Sand/Gravel/Sandy Clay | Sand and gravel, sometimes mixed with clay or described as sandy clay; water bearing in parts | Color: Yellow-brown/gray Hardness: Loose to firm |
| 36 – 110 ft | Clay (with interbeds of gravel or sand) | Predominantly clay, sometimes with gravel/sand streaks; acts as aquitard, may include thin hardpan/clayey gravel layers | Color: Gray/yellow/tan Hardness: Firm to stiff |
| 110 – 145 ft | Sand/Gravel Water Bearing | Clean to mixed sand and gravel, main water-bearing formation tapped by screens | Color: Yellow-gray Hardness: Loose |
| 145 – 180 ft | Clay with Gravel/Sand and Stones | Alternating clay with more coarse material and minor stones or hardpan | Color: Gray Hardness: Firm to hard |
| 180 – 200 ft | Gravel/Coarse Sand | Gravel and coarse sand, often the lowest screened aquifer | Color: Gray-yellow Hardness: Loose |