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Cheyenne, Wyoming

Well Drillers Near Cheyenne, Wyoming

Cheyenne area wells typically encounter unconsolidated alluvium overlying Cretaceous bedrock (Laramie, Pierre Shale, or sandstone), with total depths commonly 200-600 ft. Most domestic wells target the basal alluvial/gravel aquifer or upper sandstone zones in the Laramie or High Plains aquifer.

Showing contractors within 60 miles of Cheyenne. 18 results found.

Typical depth
325 ft
Water table
250 ft
Contractors
18

18 Contractors

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View Local Geology Report

A geological estimate for the Cheyenne area.

Typical Well Depth
325 ft
Static Water Level
250 ft
Recommended Method
Rotary - Mud Circulation

Detailed Summary

A synthesis of representative well log data for the Cheyenne region (Weld County, township 12N, ranges 65-67W) indicates the most probable subsurface sequence is: 1) surficial silt, clay or loess (0-5 ft); 2) brown to yellow clayey sand and gravel, sometimes with caliche or silt/sand lenses (5-40 ft); 3) sandy, clayey gravel, becoming compact with depth (40-90 ft); 4) claystone or fine sand/shale interbeds (90-150 ft); and 5) hard, dark gray shale or sandstone (Pierre, Laramie, or 'High Plains' units) from ~150+ ft downward. Reliable residential supplies (5-15 GPM) are usually reached by 230-350 ft; higher capacity wells may be screened to 500-600 ft. Domestic yield is commonly drawn from basal gravel/sand or upper consolidated sandstone in Laramie/High Plains aquifers. Static water levels vary widely but are most typically found between 150-400 ft. All values represent weighted means and modal values from area logs, omitting deep or anomalous bores.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 5 ftSurface soil/loessBrown silt, topsoil, occasional calicheColor: Brown to gray
Hardness: Soft
5 – 40 ftAlluvium (sand/gravel/clay)Fine to coarse sand interbedded with clay and gravel, may include cobbles or some calicheColor: Brown, tan, yellow
Hardness: Soft to medium
40 – 90 ftClayey gravel/sandDense, compact sandy gravel, grading into clayey sand and silt; increasing consolidation with depthColor: Yellow-brown to olive
Hardness: Medium
90 – 150 ftShale/fine sand interbedsGray, silty claystone, with interbedded fine sand and occasional sandy lenses; may contain lignite layers or iron concretionsColor: Gray, blue-gray
Hardness: Firm to hard
150 – 600 ftCretaceous bedrock (Laramie, Pierre, or High Plains aquifer interval)Hard dark shale and/or gray fine sandstone; contains water-bearing sand horizons in upper portions; commonly the target aquifer for deeper wells; can show pyrite, iron, and fossil fragmentsColor: Dark gray, sometimes greenish or tan
Hardness: Hard

Frequently Asked Questions

A typical residential well in the Cheyenne area is drilled to approximately 325 feet to ensure a reliable water supply of 5-15+ gallons per minute.

The static water level, or water table, is typically found around 250 feet below the surface in this region.

A synthesis of representative well log data for the Cheyenne region (Weld County, township 12N, ranges 65-67W) indicates the most probable subsurface sequence is: 1) surficial silt, clay or loess (0-5 ft); 2) brown to yellow clayey sand and gravel, sometimes with caliche or silt/sand lenses (5-40 ft); 3) sandy, clayey gravel, becoming compact with depth (40-90 ft); 4) claystone or fine sand/shale interbeds (90-150 ft); and 5) hard, dark gray shale or sandstone (Pierre, Laramie, or 'High Plains' units) from ~150+ ft downward. Reliable residential supplies (5-15 GPM) are usually reached by 230-350 ft; higher capacity wells may be screened to 500-600 ft. Domestic yield is commonly drawn from basal gravel/sand or upper consolidated sandstone in Laramie/High Plains aquifers. Static water levels vary widely but are most typically found between 150-400 ft. All values represent weighted means and modal values from area logs, omitting deep or anomalous bores.