⟁ California Well Data field records · 2026 survey

California Well Data › Santa Clara County

Santa Clara County, California: well depth, water level & drilling cost

✓ 33,176 DWR records · verified 2026-08-14

80 ftmedian well depth
30 ft–240 fttypical depth range
43 ftmedian static water level
35 gpmmedian yield (2,592 tests)

How deep are wells in Santa Clara County, California?

The median drilled well depth in Santa Clara County is 80 ft, based on 17,693 wells with recorded depths in the state DWR database. Half of all wells fall between 30 ft and 240 ft; 90% are shallower than 360 ft. Wells drilled since 2016 have a median depth of 49 ft.

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

Applying published per-foot rates to the local median depth of 49 ft: drilling and casing alone typically runs $1,225–$3,185; a complete system including pump, pressure tank, and hookup typically runs $2,940–$4,900. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Santa Clara County?

The median static water level is 43 ft below ground surface (middle half of wells: 20 ft–88 ft), from 4,167 measurements.

How much water do wells in Santa Clara County produce?

The median tested yield is 35 gpm (middle half: 10 gpm–150 gpm), from 2,592 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 7,092 50–100 ft 2,261 100–150 ft 1,221 150–200 ft 1,142 200–300 ft 2,929 300–400 ft 1,514 400–600 ft 1,104 600+ ft 430

Who drills wells in Santa Clara 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 INC280
GOOD EARTHKEEPING ORGANIZATION INC157
CASCADE DRILLING L P151
MAIER & DOUGHERTY PUMP & SUPPLY INC142
GREGG DRILLING & TESTING INC136
T S A DRILLING INC DBA PENECORE DRILLING129
GREGG DRILLING LLC115
ENVIRONMENTAL CONTROL ASSOCIATES114

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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.