Ken Olson Well Drilling & Pump Service, Inc.
Lake Hallie, WI54703
Lake Hallie area wells typically penetrate glacial sand/gravel and sandy/clayey overburden, then thick sequences of tan/gray sandstone with occasional interbedded clay and occasional quartzite at depth.
Showing contractors within 60 miles of Lake Hallie. 29 results found.





A geological estimate for the Lake Hallie area.
Typical Well Depth
Static Water Level
Recommended Method
Based on synthesis of well logs from the Lake Hallie region, the representative geological profile starts with topsoil (very thin), brown sand and/or gravel, followed by a significant interval of tan/brown sand or sand with some clay. Most wells transition into thick zones of medium to hard, tan or gray sandstone, sometimes with beds described as soft or shaley, before possibly reaching quartzite or similar hard rock at greater depths. Residential wells (5–15+ GPM) commonly finish within 95–130 feet, corresponding to the hard sandstone. Static water levels usually occur between 30–70 feet below ground. High capacity well intakes may extend slightly deeper into the hard sandstone, often not exceeding 140 feet.
| Depth (Feet) | Formation Type | Description | Characteristics |
|---|---|---|---|
| 0 – 2 ft | Topsoil | Thin organic-rich surface layer. | Color: Dark Hardness: Soft |
| 2 – 8 ft | Sand/Gravel | Brown/tan sand and gravel, sometimes with minor clay. | Color: Brown/Tan Hardness: Loose/Soft |
| 8 – 40 ft | Sand, Sand with Clay | Tan/brown sand and occasional clay layers or sandy clay. | Color: Tan/Brown Hardness: Loose/Soft/Medium |
| 40 – 80 ft | Sandstone | Medium to hard tan or gray sandstone, sometimes shaley or with clay seams. | Color: Tan/Gray Hardness: Medium to Hard |
| 80 – 130 ft | Sandstone | Thick, hard/firm tan or gray sandstone; principal aquifer for most wells. | Color: Tan/Gray Hardness: Hard/Firm |
| 130 – 198 ft | Sandstone/Quartzite (where reached) | In some cases, transitions to coarse or firm sandstone or possible quartzite; otherwise sandstone persists. | Color: Tan/Gray Hardness: Hard/Very Hard |