⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Tazewell County

Tazewell County, Illinois: well depth, yield & drilling cost

✓ 4,738 ISGS records · verified 2026-08-20

118 ftmedian well depth
83 ft–209 fttypical depth range
18 gpmmedian yield (3,037 tests)

How deep are wells in Tazewell County, Illinois?

The median drilled well depth in Tazewell County is 118 ft, based on 4,637 wells with recorded depths in the state ISGS database. Half of all wells fall between 83 ft and 209 ft; 90% are shallower than 295 ft. Wells drilled since 2016 have a median depth of 134 ft.

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

Applying published per-foot rates to the local median depth of 134 ft: drilling and casing alone typically runs $3,350–$8,710; a complete system including pump, pressure tank, and hookup typically runs $8,040–$13,400. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Tazewell County?

Few static water level measurements are recorded for this county.

How much water do wells in Tazewell County produce?

The median tested yield is 18 gpm (middle half: 12 gpm–25 gpm), from 3,037 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 295 50–100 ft 1,499 100–150 ft 1,015 150–200 ft 583 200–300 ft 797 300–400 ft 422 400–600 ft 21 600+ ft 5

Who drills wells in Tazewell County?

Companies and licensed drillers by number of wells logged in this county, per records filed with the Illinois State Geological Survey.

DrillerWells since 2016
Wagenbach, Mark101
Tyler J. Gee61
Williams, Robert31
Danner, James18
Greg Tarter17
Cole, Steve15
Warner, Scott13
Layten, Mark J.10

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Method: medians computed from ISGS records (ISGS water wells; engineering, mineral and stratigraphic test borings, mine shafts, outcrops and monitoring wells are excluded, as are wells the survey records as plugged; depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.