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Typical Residential Water Well Cost Breakdown in East Tennessee (2026)
| Well System Component | Typical East TN Specification | Estimated Cost Range |
|---|---|---|
| Drilling Borehole (6" Air-Rotary) | 150' – 400'+ in Valley & Ridge limestone, dolomite or shale | $15 – $28 per foot ($3,000 – $9,500+) |
| 6" Steel Surface Casing & Sanitary Grout Seal | Seated into bedrock through red clay/chert overburden (20'–100'+) | $22 – $40 per foot of cased overburden ($1,200 – $3,800) |
| Submersible Well Pump, Drop Pipe, Wire & Tank | 1/2 HP to 1.5 HP stainless pump, pitless adapter, pressure tank & switch | $2,800 – $5,500 installed |
| Complete Turnkey Residential Well System | Drilled, cased, grouted, pump + tank + basic trench to home | $7,500 – $17,500+ (depth & overburden dependent) |
How geology shapes well depth around Knoxville and the foothills
East Tennessee sits in the Valley and Ridge and Blue Ridge foothill provinces, where tilted beds of Knox dolomite, Chickamauga limestone and shale store groundwater in fractures and solution channels rather than uniform sand layers. Because water-bearing fractures vary from ridge to valley, two lots a quarter-mile apart in Powell, Seymour, Maryville or Sevierville can finish at 180 feet and 380 feet respectively.
Above the bedrock sits weathered red clay and chert residuum (overburden). A TDEC-licensed well driller drives or grouts 6-inch steel surface casing through that clay and seats it into solid rock to keep surface runoff and muddy sediment out of your drinking water.
TDEC setbacks from septic systems, property lines and homesites
Under Tennessee Department of Environment and Conservation (TDEC) private water well rules, a residential water well must be sited at least 50 feet from a septic tank, 100 feet from a septic drainfield or subsurface absorption area (and upslope where possible), and away from property boundaries and overhead power lines. Coordinate your well driller and septic designer before pouring foundations.
What to share when requesting a new residential well quote
- Property county, address or parcel location, and whether the lot is wooded, steep or cleared.
- Number of bedrooms/bathrooms and any extra water demands (irrigation, livestock, guest cabin).
- Whether a septic permit or site evaluation has already been staked on the lot.
- Known depths of any neighboring wells on the same road or ridge.
Common questions: residential well drilling in Knoxville, TN
How much does it cost to drill a water well in Knoxville, TN?
A complete turnkey residential water well around Knoxville and adjacent East Tennessee counties typically runs $7,500 to $17,500+, depending on total drilled depth (commonly 150 to 400+ feet) and how many feet of steel casing are required to reach solid bedrock.
How many gallons per minute (GPM) does a residential well need in Tennessee?
A yield of 5 to 10+ GPM is comfortable for most single-family homes, though lower-yielding wells (1.5 to 4 GPM) can still supply a home reliably when paired with deep borehole storage or a缓冲/holding tank and booster system.
Related Knoxville well drilling guides & pages
Ready to get your well drilling project moving?
You don't need technical details to start. Something like "new house on 5 acres near Maryville, no city water, want water before spring" is enough for a driller to begin the conversation.