
Luttrell Well Drilling Inc.
Harbor Springs, MI49740
Typical Harbor Springs well geology: surficial sand/gravel, interbedded clay/silt, underlain by thick sand or sand & gravel, commonly transitioning to limestone and shale at greater depths. Most residential wells terminate in sand/gravel before hard rock.
Showing contractors within 60 miles of Harbor Springs. 29 results found.
A geological estimate for the Harbor Springs area.
Typical Well Depth
Static Water Level
Recommended Method
The representative geological profile for the Harbor Springs region starts with a thin layer of sand or topsoil, followed by interbedded sand and gravel units often containing one or more clay layers. At depths of approximately 100 to 200 feet, layers of water-bearing sand and gravel are typical, frequently serving as the primary aquifer for household supply. In some areas and deeper wells, limestone, shale, and additional clay layers are present below 150-200 ft, with the deepest wells often ending in fractured limestone or mixed limestone/shale with occasional water-bearing zones. Most residential wells (yielding 5–15+ GPM) are completed between 120 and 220 ft, usually in the more permeable sand/gravel aquifer above bedrock.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 3 ft | Topsoil or Sand | Brown sand, topsoil, or surficial sediments | Color: Brown Hardness: Loose |
3 – 20 ft | Sand & Gravel/Clay Interbeds | Brown sand and gravel with occasional thin clay lenses | Color: Brown/Light Brown Hardness: Loose to Semi-compact |
20 – 60 ft | Clay/Silt with Sand and Gravel | Clay, sometimes sandy, with medium to coarse sand/gravel intervals | Color: Light Brown/Gray/Pink Hardness: Medium |
60 – 155 ft | Sand/Sand & Gravel (Water-Bearing) | Thick sequences of light to medium brown sand and gravel; dominant aquifer zone | Color: Light Brown Hardness: Loose to Moderately compact |
155 – 220 ft | Sand & Gravel with some Clay and Silt | Coarser sand and gravel alternating with minor clay streaks; strong water yield | Color: Light to Medium Brown Hardness: Loose |
220 – 260 ft | Clay/Sandy Clay | Gray or pink clay and clayey sand; transitional zone above bedrock | Color: Gray/Pink/Tan Hardness: Firm |
260 – 325 ft | Limestone with Some Shale | Hard limestone, locally with shale partings or clay seams; sometimes water-bearing in fractures | Color: Gray/Light Gray Hardness: Hard rock |