⟁ California Well Data field records · 2026 survey

California Well Data › Napa County › Oakville (94562)

Oakville, CA (94562): well depth, water level & drilling cost

✓ 489 DWR records · Napa County

360 ftmedian well depth
220 ft–560 fttypical depth range
45 ftmedian static water level
60 gpmmedian yield (278 tests)

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How deep are wells in and around Oakville (94562), California?

The median drilled well depth in and around Oakville (94562) is 360 ft, based on 412 wells with recorded depths in the state DWR database. Half fall between 220 ft and 560 ft; 90% are shallower than 700 ft.

How much does it cost to drill a well in and around Oakville (94562)?

Applying published per-foot rates to the local median depth of 360 ft: drilling and casing alone typically runs $9,000–$23,400; a complete system including pump, pressure tank, and hookup typically runs $21,600–$36,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Oakville (94562)?

The median static water level is 45 ft below ground surface (middle half of wells: 20 ft–128 ft), from 272 measurements.

Drilled depth distribution

0–50 ft 4 50–100 ft 7 100–150 ft 24 150–200 ft 31 200–300 ft 87 300–400 ft 80 400–600 ft 85 600+ ft 94
Looking at a specific property in Oakville (94562)?

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Part of Napa 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.