⟁ California Well Data field records · 2026 survey

California Well Data › Sonoma County › Petaluma (94953)

Petaluma, CA (94953): well depth, water level & drilling cost

✓ 384 DWR records · Sonoma County

178 ftmedian well depth
82 ft–310 fttypical depth range
49 ftmedian static water level
15 gpmmedian yield (143 tests)

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How deep are wells in and around Petaluma (94953), California?

The median drilled well depth in and around Petaluma (94953) is 178 ft, based on 227 wells with recorded depths in the state DWR database. Half fall between 82 ft and 310 ft; 90% are shallower than 454 ft.

How much does it cost to drill a well in and around Petaluma (94953)?

Applying published per-foot rates to the local median depth of 178 ft: drilling and casing alone typically runs $4,450–$11,570; a complete system including pump, pressure tank, and hookup typically runs $10,680–$17,800. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Petaluma (94953)?

The median static water level is 49 ft below ground surface (middle half of wells: 19 ft–100 ft), from 115 measurements.

Drilled depth distribution

0–50 ft 29 50–100 ft 47 100–150 ft 24 150–200 ft 23 200–300 ft 40 300–400 ft 28 400–600 ft 30 600+ ft 6
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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.