⟁ Tennessee Well Data field records · 2026 survey

Tennessee Well Data › Sullivan County

Sullivan County, Tennessee: well depth, water level & drilling cost

✓ 2,028 TDEC records · verified 2026-09-28

248 ftmedian well depth
145 ft–392 fttypical depth range
50 ftmedian static water level
7 gpmmedian yield (1,902 tests)

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How deep are wells in Sullivan County, Tennessee?

The median drilled well depth in Sullivan County is 248 ft, based on 2,018 wells with recorded depths in the state TDEC database. Half of all wells fall between 145 ft and 392 ft; 90% are shallower than 536 ft. Wells drilled since 2016 have a median depth of 405 ft.

How much does it cost to drill a well in Sullivan County?

Applying published per-foot rates to the local median depth of 248 ft: drilling and casing alone typically runs $6,200–$16,120; a complete system including pump, pressure tank, and hookup typically runs $14,880–$24,800. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Sullivan County?

The median static water level is 50 ft below ground surface (middle half of wells: 30 ft–80 ft), from 1,752 measurements.

How much water do wells in Sullivan County produce?

The median tested yield is 7 gpm (middle half: 4 gpm–15 gpm), from 1,902 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 35 50–100 ft 196 100–150 ft 308 150–200 ft 228 200–300 ft 441 300–400 ft 311 400–600 ft 347 600+ ft 152
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Well records by ZIP code in Sullivan County

Median depth, water level, and yield for each ZIP code with recorded wells.

Method: medians computed from TDEC records (TDEC reported water wells; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.