⟁ California Well Data field records · 2026 survey

California Well Data › Contra Costa County › Walnut Creek (94595)

Walnut Creek, CA (94595): well depth, water level & drilling cost

✓ 71 DWR records · Contra Costa County

200 ftmedian well depth
53 ft–248 fttypical depth range
30 ftmedian static water level
9 gpmmedian yield (16 tests)

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How deep are wells in and around Walnut Creek (94595), California?

The median drilled well depth in and around Walnut Creek (94595) is 200 ft, based on 42 wells with recorded depths in the state DWR database. Half fall between 53 ft and 248 ft; 90% are shallower than 359 ft.

How much does it cost to drill a well in and around Walnut Creek (94595)?

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.

What is the static water level in and around Walnut Creek (94595)?

The median static water level is 30 ft below ground surface (middle half of wells: 17 ft–52 ft), from 19 measurements.

Drilled depth distribution

0–50 ft 11 50–100 ft 1 100–150 ft 6 150–200 ft 2 200–300 ft 13 300–400 ft 7 400–600 ft 1 600+ ft 1
Looking at a specific property in Walnut Creek (94595)?

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Part of Contra Costa County well records.

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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.