Wisconsin Water Well Depth & Drilling Cost Guide
Authoritative hydrogeological intelligence for Wisconsin. Regulated by the Wisconsin Department of Natural Resources (WDNR). The statewide median drilling depth is 150 feet (ranging 40–450 ft) with an average drilling cost of $42 per foot ($30 to $68/ft).
Quick Hydrogeological Fact Sheet: Wisconsin
To reach potable water in Wisconsin, residential wells require drilling an average of 150 feet deep. Total turnkey installation costs average $8,900 USD for a completed 6-inch casing well, 1.5 HP submersible pump, pressure tank, and state permits. The standing static water table sits at approximately 30 feet below surface level, producing a reliable average flow rate of 20 GPM across the primary Sandstone and Dolomite Aquifer.
Wisconsin County-Level Well Logs & Average Depths
Official USGS hydrogeological monitoring stations, static levels, and driller completion records.
| County Name | Median Depth (ft) | Avg Cost / Foot | Typical Yield | Primary Aquifer | Local Action |
|---|---|---|---|---|---|
| Dane County (Madison) | 145 ft | $40 /ft | 22 GPM | Upper Bedrock Sandstone |
|
| Waukesha County | 220 ft | $46 /ft | 18 GPM | Silurian Dolomite |
💰 Estimated Turnkey Cost Itemization in Wisconsin
Component-by-component breakdown for a standard residential water well (150 ft average).
| System Component | Specification in Wisconsin | Unit Cost | Estimated Subtotal |
|---|---|---|---|
| Borehole Drilling & Sanitary Casing | 150 ft depth with standard 6" PVC/Steel Casing & Drive Shoe | $42 /ft | $6,300 USD |
| Submersible Pump & Drop Pipe | 1.0 HP – 1.5 HP Stainless Submersible Pump with 12-gauge electrical drop cable | Turnkey Pump Unit | $2,250 USD |
| Pressure Tank & Control Switch | 40-gallon Captive Air Pressure Tank, 40/60 PSI Pressure Switch & Gauge | Standard Assembly | $1,200 USD |
| State Permits, Sanitary Grouting & Lab Water Testing | Mandatory Wisconsin Department of Natural Resources (WDNR) permit, bentonite surface seal, and EPA drinking panel | State Fee + Lab | $600 USD |
| TOTAL ESTIMATED TURNKEY INVESTMENT | Includes excavation, drilling, plumbing hookup, and water inspection | $8,900 USD | |
Wisconsin Aquifers & Subsurface Geology
Glacial sand/gravel over Cambrian-Ordovician sandstone and Silurian dolomite
Water Quality & Recommended Filtration
⚖️ Wisconsin Well Drilling Regulations & Legal Setbacks
Calculate Drilling Cost in Wisconsin
Pre-loaded with Wisconsin median depth (150 ft) and average cost ($42/ft).
Frequently Asked Questions: Drilling Wells in Wisconsin
1. How deep do you usually have to drill for water in Wisconsin?
Across Wisconsin, the median residential water well is drilled to 150 feet. However, shallow alluvial wells can hit water as high as 40 feet, while deep bedrock or limestone aquifer wells may require drilling down to 450 feet to reach sufficient pressure and yield.
2. How much does a complete water well cost in Wisconsin?
On average, homeowners in Wisconsin invest $8,900 USD for a complete turnkey system. Drilling alone costs $42 per foot (ranging $30–$68/ft), while submersible pumps, pressure tanks, state permit fees ($150), and electrical hookups comprise the remaining balance.
3. What is the required setback from septic tanks in Wisconsin?
State health mandates overseen by the Wisconsin Department of Natural Resources (WDNR) require a minimum separation distance of 50 feet from any septic tank, leach field, or potential contamination source, plus at least 10 feet from adjacent property boundaries.
4. What is the groundwater quality like in Wisconsin?
Wells in Wisconsin typically yield water with a hardness reading around 270 PPM and an average pH of 7.6. Key minerals present in natural groundwater include High Hardness, Iron, Radon/Radium in deep sandstone. The recommended standard filtration configuration is: High Capacity Softener + Iron Filter.
🗺️ Neighboring & Regional Groundwater Guides
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