Macon Well & Pump Service LLC
Dundee, MI48131
Typical Dundee region geology: sand and clay overlying limestone or sandstone bedrock, with household wells most often finished in bedrock aquifers between 60 and 90 ft.
Showing contractors within 60 miles of Dundee. 39 results found.
A geological estimate for the Dundee area.
Typical Well Depth
Static Water Level
Recommended Method
The most representative well profile for Dundee and surrounding Monroe County areas is a surficial sequence of sand (4–8 ft thick) atop 10–35 ft of clay, occasionally interlayered with thin gravel or bouldery zones, overlying a prominent bedrock aquifer. Bedrock is most commonly limestone (sometimes with a soft weathered upper part), but can include a thick sandstone interval or, less commonly, limestone with interbedded shale. Household wells are typically completed in the limestone or sandstone at about 65–90 ft, with static water levels generally 20–70 ft below grade. Most wells are constructed with rotary or cable-tool methods and use a PVC or steel casing set through the unconsolidated overburden. Typical residential yields range 6–15 GPM. High-capacity wells may screen deeper in the lower limestone, up to 120–130 ft as data allows. The most consistent geologic sequence excludes isolated anomalous lithologies, emphasizing the prevalence of the sand-clay-bedrock transition in the region.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 6 ft | Sand | Fine to medium sand, occasionally with some gravel, brown | Color: Brown Hardness: Unconsolidated |
6 – 24 ft | Clay | Dense silty clay, may include sandy or gravelly interbeds | Color: Brown to blue-gray Hardness: Unconsolidated |
24 – 27 ft | Gravel/Boulders or Hardpan | Occasional gravelly or bouldery zone, transition to bedrock; can be absent | Color: Gray Hardness: Variable |
27 – 75 ft | Limestone (soft upper part possible) or Sandstone | Gray limestone, fractured and sometimes soft at top, or sandstone. Slight shale may be present locally. | Color: Gray Hardness: Hard rock |
75 – 125 ft | Limestone (massive) | Massive gray limestone, competent aquifer, occasional shale streaks | Color: Gray Hardness: Very hard |