Bob's Well Drilling
Interlochen, MI49643
The typical Interlochen-area well passes through an upper sand/gravel unit, intermediate clay (often interbedded with sand), and a lower sand or sand/gravel aquifer. Residential wells most often end in the lower sand/gravel zone between 60 and 153 ft, with static water at 16–66 ft below grade.
Showing contractors within 60 miles of Interlochen. 40 results found.
A geological estimate for the Interlochen area.
Typical Well Depth
Static Water Level
Recommended Method
Analysis of well logs in the Interlochen region reveals a common sequence: surficial sand or sand/gravel to depths of 20–45 ft, frequently underlain by a significant clay or clayey sand unit (20–50 ft thick), before reaching deeper water-bearing sands or sand/gravel that serve as the primary aquifer. Where present, interbedded thin sand and clay lenses occur within the clay. Productive residential wells commonly terminate in these lower sand/gravel layers at 60–153 ft, yielding 10–15 GPM. Shallow static water levels are most often reported between 16–66 ft below grade, and the typical construction method is rotary drilling with bentonite slurry grout.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 40 ft | Sand & Gravel | Coarse to medium sand and gravel, locally with minor silt. Main surficial layer. | Color: Tan to light brown Hardness: Loose to medium |
40 – 70 ft | Clay (with occasional sand or silt) | Predominantly clay with some lenses of fine sand or silt; acts as a confining layer. | Color: Gray to brown Hardness: Firm to stiff |
70 – 90 ft | Sand & Gravel (water bearing) | Coarse to medium sand and gravel; principal aquifer for residential wells. | Color: Brown Hardness: Loose to medium |
90 – 175 ft | Sand (with some interbedded clay layers) | Lower sand with occasional thin clay beds; main aquifer for higher capacity wells. Not present in all logs, but common in deeper wells. | Color: Tan Hardness: Loose |