California Well Data field records · 2026 survey

California Well Data › San Benito County

San Benito County, California: well depth, water level & drilling cost

✓ 2,508 DWR records · verified 2026-08-14

252 ftmedian well depth
160 ft–389 fttypical depth range
57 ftmedian static water level
50 gpmmedian yield (881 tests)

How deep are wells in San Benito County, California?

The median drilled well depth in San Benito County is 252 ft, based on 1,996 wells with recorded depths in the state DWR database. Half of all wells fall between 160 ft and 389 ft; 90% are shallower than 560 ft. Wells drilled since 2016 have a median depth of 300 ft.

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

Applying published per-foot rates to the local median depth of 300 ft: drilling and casing alone typically runs $7,500–$19,500; a complete system including pump, pressure tank, and hookup typically runs $18,000–$30,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in San Benito County?

The median static water level is 57 ft below ground surface (middle half of wells: 30 ft–100 ft), from 1,167 measurements.

How much water do wells in San Benito County produce?

The median tested yield is 50 gpm (middle half: 17 gpm–200 gpm), from 881 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 68 50–100 ft 170 100–150 ft 201 150–200 ft 223 200–300 ft 490 300–400 ft 368 400–600 ft 309 600+ ft 167

Who drills wells in San Benito 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
GUARDINO WELL DRILLING INC89
MAGGIORA BROS DRILLING INC73
MAIER & DOUGHERTY PUMP & SUPPLY INC25
AMERICAN CONSTRUCTION AND SUPPLY INC20
GRANITE DRILLING COMPANY14
EATON DRILLING CO LLC14
FRED ASH & SONS LYNCH PUMP CO11
DE LA GRANGE AND SONS9

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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.