⟁ California Well Data field records · 2026 survey

California Well Data › Riverside County

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

✓ 31,118 DWR records · verified 2026-08-14

300 ftmedian well depth
164 ft–480 fttypical depth range
85 ftmedian static water level
20 gpmmedian yield (16,663 tests)

How deep are wells in Riverside County, California?

The median drilled well depth in Riverside County is 300 ft, based on 24,413 wells with recorded depths in the state DWR database. Half of all wells fall between 164 ft and 480 ft; 90% are shallower than 700 ft. Wells drilled since 2016 have a median depth of 500 ft.

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

Applying published per-foot rates to the local median depth of 500 ft: drilling and casing alone typically runs $12,500–$32,500; a complete system including pump, pressure tank, and hookup typically runs $30,000–$50,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Riverside County?

The median static water level is 85 ft below ground surface (middle half of wells: 40 ft–153 ft), from 6,486 measurements.

How much water do wells in Riverside County produce?

The median tested yield is 20 gpm (middle half: 8 gpm–60 gpm), from 16,663 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 1,008 50–100 ft 1,755 100–150 ft 2,443 150–200 ft 2,078 200–300 ft 4,744 300–400 ft 3,863 400–600 ft 4,582 600+ ft 3,940

Who drills wells in Riverside 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
L O LYNCH QUALITY WELLS & PUMPS INC586
HERITAGE WELL SERVICE451
DECHENNE WATER WELL DRILLING INC353
STEHLY BROTHERS DRILLING INC201
DETRAY DRILLING132
FAIN DRILLING & PUMP CO INC71
FARWEST CORROSION CONTROL COMPANY58
SEBASTIAN VALENTE57

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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.