
Sam's Well Drilling
Randolph, WI53956
Typical Hartland area wells first encounter clay or clay-rich drift, followed by thick sand and gravel, overlying limestone bedrock; residential supply zones are usually in sand/gravel or upper limestone.
Showing contractors within 60 miles of Hartland. 46 results found.
A geological estimate for the Hartland area.
Typical Well Depth
Static Water Level
Recommended Method
A representative geologic profile for the Hartland region (Waukesha County, WI), derived from a synthesis of well logs, typically consists of a surficial clay or clay with silt or fill (occasionally absent), transitioning to thick sand and gravel intervals, sometimes with interbedded clay lenses. At moderate depths, gravel may become coarser or richer in stones or cobbles. Bedrock is most commonly encountered as limestone (sometimes interbedded with shale) and extends to the deepest logged intervals. Shallower wells for residential use generally draw from sand/gravel or shallow limestone, while high-capacity wells are finished deeper in the limestone. Most wells use rotary-mud drilling with moderate-length steel casing. Static water levels are typically shallowest in unconsolidated zones and deeper with greater total well depth.
Depth (Feet) | Formation Type | Description | Characteristics |
---|---|---|---|
0 – 5 ft | Clay/Fill | Clay or clay with fill/construction debris, sometimes absent or present as a thin layer. | Color: Gray/Brown Hardness: Soft to medium |
5 – 50 ft | Sand & Gravel (local clay lenses) | Sand and gravel (occasionally clayey or interbedded with clay lenses), grading to coarser gravel with depth. | Color: Tan/Gray Hardness: Loose |
50 – 60 ft | Coarse Gravel/Cobbles/Boulders | Coarser gravel and occasional larger stones and cobbles, sandy matrix; transitional base of unconsolidated material. | Color: Mixed Hardness: Loose |
60 – 152 ft | Clay with Gravel (local) | Locally present thick gray clay with intermixed gravel. More consistent in deeper logs with thicker drift sections. | Color: Gray Hardness: Medium |
60 – 395 ft | Limestone (Upper Interbedded Shale) | Limestone bedrock, occasionally interbedded with layers of shale (shale more common from ~200 ft depth). Limestone extends as the main aquifer to total drilled depth. | Color: Gray/Tan (shale is darker gray/green) Hardness: Hard |