⟁ California Well Data field records · 2026 survey

California Well Data › Trinity County

Trinity County, California: well depth, water level & drilling cost

✓ 3,151 DWR records · verified 2026-08-14

178 ftmedian well depth
100 ft–248 fttypical depth range
60 ftmedian static water level
10 gpmmedian yield (2,150 tests)

How deep are wells in Trinity County, California?

The median drilled well depth in Trinity County is 178 ft, based on 3,143 wells with recorded depths in the state DWR database. Half of all wells fall between 100 ft and 248 ft; 90% are shallower than 320 ft. Wells drilled since 2016 have a median depth of 240 ft.

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

Applying published per-foot rates to the local median depth of 240 ft: drilling and casing alone typically runs $6,000–$15,600; a complete system including pump, pressure tank, and hookup typically runs $14,400–$24,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Trinity County?

The median static water level is 60 ft below ground surface (middle half of wells: 30 ft–115 ft), from 804 measurements.

How much water do wells in Trinity County produce?

The median tested yield is 10 gpm (middle half: 5 gpm–20 gpm), from 2,150 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 183 50–100 ft 512 100–150 ft 652 150–200 ft 404 200–300 ft 850 300–400 ft 399 400–600 ft 135 600+ ft 8

Who drills wells in Trinity County?

Companies by number of wells completed in this county since 2016, per filed well completion reports (California Department of Water Resources).

DrillerWells since 2016
KURT LINGEMANN WELL DRILLING381
SHASTA DRILLING INC280
FISCH DRILLING AND PUMP INC79
DIAMOND CORE DRILLING INC49
ENLOE DRILLING AND PUMPS INC25
WATSON WELL DRILLING INC13
BUSHNELL ENTERPRISES12
VICS WELL DRILLING INC7

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Method: medians computed from DWR records (filed well completion reports, water-supply uses only (destruction, repair and monitoring wells excluded); depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.