
Sam's Well Drilling
Randolph, WI 53956
The typical Hortonville-area well penetrates a sequence of clay/sandy material, underlain by alternating limestone/dolomite and sandstone layers, reaching residential yields of 10–30 GPM at depths ~90–160 ft, with bedrock wells often exceeding 200 ft.
Showing contractors within 60 miles of Hortonville. 68 results found.










Check depths and logs of existing wells in the area before you drill.
Open well map →Costs, permits, maintenance tips for private wells in Wisconsin.
Open guide →A geological estimate for the Hortonville area.
Wells in the Hortonville region characteristically pass through a thin surficial clay (or clay with gravel or sand admixture), grading into limestone/dolomite and prominent sandstone aquifers. These carbonate and sandstone bedrock units alternate with typical first significant limestone/dolomite bedrock appearing between 10 to 45 ft, underlain by alternating sequences that may transition more than once with depths. Overall, groundwater is typically sourced from limestone/dolomite or sandstone at depths between 90 and over 200 ft for high capacity. Wells consistently use rotary-mud circulation, with surface casing extending to the base of unconsolidated material (~40–100 ft), and are sealed with neat cement or mud grout. Static water levels mostly fall in the 35–90 ft range. Given pump test yields, a reliable residential well (5–15+ GPM) is generally achieved by 130 ft, while high-capacity installations target depths of 180–230+ ft.
| Depth (Feet) | Formation Type | Description | Characteristics |
|---|---|---|---|
| 0 – 20 ft | Clay/Clay w Gravel or Sand | Surficial clay with variable sand or gravel, sometimes described as sandy clay or organic soil. | Color: Gray, Red, Black Hardness: Soft |
| 20 – 45 ft | Sand & Clay or Hardpan | Compact sandy clay, hardpan, or sand/clay interbeds. | Color: Tan, Brown, Red Hardness: Firm |
| 45 – 70 ft | Limestone/Dolomite | Solid limestone or dolomite bedrock, occasionally with minor shale. | Color: Tan, Brown, Gray Hardness: Hard |
| 70 – 120 ft | Sandstone | Clean or slightly shaley sandstone, sometimes interbedded with limestone/dolomite. | Color: White, Red, Tan, Gray Hardness: Firm to Hard |
| 120 – 160 ft | Limestone/Dolomite (with Sandstone Interbeds Possible) | Thick limestone/dolomite with potential thin sandstone or shale partings. | Color: Tan, Gray, Brown Hardness: Hard |
| 160 – 210 ft | Sandstone (possible shaley part) | Massive sandstone aquifer, base may be shaley. | Color: Gray, Tan, Red Hardness: Firm to Hard |
| 210 – 230 ft | Sandstone/Limestone (variable) | Bedrock, typically sandstone but variable thickness and lithology, may include dolomite or limestone. | Color: Gray, Tan, Brown Hardness: Firm |