⟁ California Well Data field records · 2026 survey

California Well Data › Contra Costa County › Discovery Bay (94505)

Discovery Bay, CA (94505): well depth, water level & drilling cost

✓ 410 DWR records · Contra Costa County

240 ftmedian well depth
160 ft–320 fttypical depth range
30 ftmedian static water level
100 gpmmedian yield (32 tests)

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How deep are wells in and around Discovery Bay (94505), California?

The median drilled well depth in and around Discovery Bay (94505) is 240 ft, based on 333 wells with recorded depths in the state DWR database. Half fall between 160 ft and 320 ft; 90% are shallower than 370 ft.

How much does it cost to drill a well in and around Discovery Bay (94505)?

Applying published per-foot rates to the local median depth of 240 ft: drilling and casing alone typically runs $6,000–$15,600; a complete system including pump, pressure tank, and hookup typically runs $14,400–$24,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Discovery Bay (94505)?

The median static water level is 30 ft below ground surface (middle half of wells: 20 ft–49 ft), from 192 measurements.

Drilled depth distribution

0–50 ft 5 50–100 ft 27 100–150 ft 47 150–200 ft 30 200–300 ft 101 300–400 ft 99 400–600 ft 17 600+ ft 7
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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.