⟁ California Well Data field records · 2026 survey

California Well Data › Lake County

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

✓ 6,521 DWR records · verified 2026-08-14

120 ftmedian well depth
70 ft–205 fttypical depth range
54 ftmedian static water level
30 gpmmedian yield (2,598 tests)

How deep are wells in Lake County, California?

The median drilled well depth in Lake County is 120 ft, based on 6,451 wells with recorded depths in the state DWR database. Half of all wells fall between 70 ft and 205 ft; 90% are shallower than 305 ft. Wells drilled since 2016 have a median depth of 200 ft.

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

Applying published per-foot rates to the local median depth of 200 ft: drilling and casing alone typically runs $5,000–$13,000; a complete system including pump, pressure tank, and hookup typically runs $12,000–$20,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Lake County?

The median static water level is 54 ft below ground surface (middle half of wells: 23 ft–105 ft), from 474 measurements.

How much water do wells in Lake County produce?

The median tested yield is 30 gpm (middle half: 11 gpm–60 gpm), from 2,598 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 883 50–100 ft 1,492 100–150 ft 1,450 150–200 ft 814 200–300 ft 1,034 300–400 ft 453 400–600 ft 273 600+ ft 52

Who drills wells in Lake 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
WILL PETERSON WELL DRILLING162
WEEKS DRILLING AND PUMP CO113
JAK DRILLING AND PUMP61
HUTTON WELL DRILLING20
WELL INDUSTRIES INC14
FISCH BROS DRILLING14
MAGGIORA BROS DRILLING INC13
FISCH DRILLING AND PUMP INC11

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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.