⟁ California Well Data field records · 2026 survey

California Well Data › Sonoma County › Petaluma (94952)

Petaluma, CA (94952): well depth, water level & drilling cost

✓ 1,065 DWR records · Sonoma County

220 ftmedian well depth
170 ft–260 fttypical depth range
34 ftmedian static water level
20 gpmmedian yield (585 tests)

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How deep are wells in and around Petaluma (94952), California?

The median drilled well depth in and around Petaluma (94952) is 220 ft, based on 800 wells with recorded depths in the state DWR database. Half fall between 170 ft and 260 ft; 90% are shallower than 300 ft.

How much does it cost to drill a well in and around Petaluma (94952)?

Applying published per-foot rates to the local median depth of 220 ft: drilling and casing alone typically runs $5,500–$14,300; a complete system including pump, pressure tank, and hookup typically runs $13,200–$22,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Petaluma (94952)?

The median static water level is 34 ft below ground surface (middle half of wells: 20 ft–60 ft), from 510 measurements.

Drilled depth distribution

0–50 ft 43 50–100 ft 32 100–150 ft 56 150–200 ft 152 200–300 ft 401 300–400 ft 91 400–600 ft 23 600+ ft 2
Looking at a specific property in Petaluma (94952)?

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Part of Sonoma 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.