Pure Water Well Inc
Lachine, MI49753
Typical Lachine area wells penetrate unconsolidated glacial materials (clays, gravels, sands) overlying bedrock, with increasing prevalence of limestone and shale at depth. Shallow to moderate wells (60–120 ft) are productive; deeper bedrock wells are sometimes needed.
Showing contractors within 60 miles of Lachine. 22 results found.
A geological estimate for the Lachine area.
Typical Well Depth
Static Water Level
Recommended Method
A representative geological profile for the Lachine area of Alpena County, MI, based on synthesis from multiple well logs, consists of a surficial sequence of unconsolidated glacial deposits (clay, gravel, sand) of variable thickness from surface to 40–60 feet, typically grading into more gravelly or sandy zones. Beneath this zone, wells commonly encounter set intervals of consolidated bedrock, most often alternating between limestone and shale of various colors and hardness, from approximately 44–60 feet down to depths exceeding 200 feet in deeper wells. The most productive residential wells typically terminate in coarse sand/gravel or upper limestone, with high-yield wells achieved at moderate depths. Static water levels are generally shallow (3–40 ft below ground). The most common drilling method is rotary with mud circulation, and casing is typically installed through the unconsolidated zones and at least partially into bedrock for deeper wells.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 7 ft | Clay & Gravel | Gray/brown glacial till: clay matrix with gravel inclusions, possibly some sand. | Color: Gray/Brown Hardness: Soft–Firm |
7 – 25 ft | Sand & Gravel | Coarse sand and gravel, often water-bearing, includes some clay layers. | Color: Brown–Tan Hardness: Loose–Medium |
25 – 44 ft | Gravel/Sand & Clayey | Mixture of sand, gravel, occasional clay seams. Main shallow aquifer zone. | Color: Variegated Hardness: Soft–Medium |
44 – 60 ft | Clay (occasional Stones/Gravelly) | Dense clay or clay with stones, locally can be confining. | Color: Gray/Tan Hardness: Firm–Hard |
60 – 85 ft | Limestone with Shale (soft/interbedded) | Transition to bedrock; alternating soft shale & limestone seams. May include brown, gray, tan or black limestone. | Color: Brown/Gray/Black Hardness: Medium–Hard |
85 – 210 ft | Limestone (various) | Massive limestone, occasionally interbedded with thin shale; zones of brown, gray, tan, black, or white limestone. | Color: Gray/Brown/Black/White Hardness: Hard |
210 – 250 ft | Limestone with interbedded Shale | Alternating hard limestone and softer shale layers, some clayey. | Color: Gray/Black/Tan Hardness: Medium–Hard |
250 – 300 ft | Limestone (Tan/Gray, Hard) | Thick section of hard limestone, locally fossiliferous. | Color: Tan/Gray Hardness: Hard |
300 – 320 ft | Shale | Soft, dark shale, marks transition to deeper bedrock. | Color: Dark gray/Black Hardness: Soft |