⟁ California Well Data field records · 2026 survey

California Well Data › Amador County

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

✓ 7,669 DWR records · verified 2026-08-14

270 ftmedian well depth
185 ft–380 fttypical depth range
65 ftmedian static water level
15 gpmmedian yield (3,378 tests)

How deep are wells in Amador County, California?

The median drilled well depth in Amador County is 270 ft, based on 6,341 wells with recorded depths in the state DWR database. Half of all wells fall between 185 ft and 380 ft; 90% are shallower than 500 ft. Wells drilled since 2016 have a median depth of 340 ft.

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

Applying published per-foot rates to the local median depth of 340 ft: drilling and casing alone typically runs $8,500–$22,100; a complete system including pump, pressure tank, and hookup typically runs $20,400–$34,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Amador County?

The median static water level is 65 ft below ground surface (middle half of wells: 38 ft–110 ft), from 2,839 measurements.

How much water do wells in Amador County produce?

The median tested yield is 15 gpm (middle half: 7 gpm–35 gpm), from 3,378 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 46 50–100 ft 267 100–150 ft 708 150–200 ft 668 200–300 ft 1,761 300–400 ft 1,392 400–600 ft 1,134 600+ ft 365

Who drills wells in Amador 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
BRISKI WELL DRILLING CO105
FREDRICK MARK PUMP & SUPPLY CO50
WATERS BACKHOE & DOZER SERVICE41
RUMSEY / LANG WELL DRILLING & PUMPS INC40
HUNT DRILLING COMPANY INC27
POINTS WEST DRILLING12
TANKO WELL DRILLING6
CANEPA AND SONS INC6

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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.