⟁ California Well Data field records · 2026 survey

California Well Data › Monterey County

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

✓ 11,243 DWR records · verified 2026-08-14

310 ftmedian well depth
185 ft–497 fttypical depth range
96 ftmedian static water level
30 gpmmedian yield (4,469 tests)

How deep are wells in Monterey County, California?

The median drilled well depth in Monterey County is 310 ft, based on 9,172 wells with recorded depths in the state DWR database. Half of all wells fall between 185 ft and 497 ft; 90% are shallower than 660 ft. Wells drilled since 2016 have a median depth of 500 ft.

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

The median static water level is 96 ft below ground surface (middle half of wells: 47 ft–176 ft), from 6,369 measurements.

How much water do wells in Monterey County produce?

The median tested yield is 30 gpm (middle half: 15 gpm–150 gpm), from 4,469 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 289 50–100 ft 490 100–150 ft 858 150–200 ft 843 200–300 ft 1,702 300–400 ft 1,534 400–600 ft 1,981 600+ ft 1,475

Who drills wells in Monterey 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
GRANITE DRILLING COMPANY129
BERTRAM DRILLING INC95
COAST DRILLING INC94
MAGGIORA BROS DRILLING INC81
FILIPPONI-THOMPSON DRILLING INC53
PACIFIC COAST WELL DRILLING INC40
GUARDINO WELL DRILLING INC35
MILLER DRILLING CO30

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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.