⟁ California Well Data field records · 2026 survey

California Well Data › Sonoma County › Rio Nido (95471)

Rio Nido, CA (95471): well depth, water level & drilling cost

✓ 218 DWR records · Sonoma County

160 ftmedian well depth
80 ft–240 fttypical depth range
41 ftmedian static water level
20 gpmmedian yield (112 tests)

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How deep are wells in and around Rio Nido (95471), California?

The median drilled well depth in and around Rio Nido (95471) is 160 ft, based on 172 wells with recorded depths in the state DWR database. Half fall between 80 ft and 240 ft; 90% are shallower than 300 ft.

How much does it cost to drill a well in and around Rio Nido (95471)?

Applying published per-foot rates to the local median depth of 160 ft: drilling and casing alone typically runs $4,000–$10,400; a complete system including pump, pressure tank, and hookup typically runs $9,600–$16,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Rio Nido (95471)?

The median static water level is 41 ft below ground surface (middle half of wells: 20 ft–81 ft), from 128 measurements.

Drilled depth distribution

0–50 ft 23 50–100 ft 29 100–150 ft 30 150–200 ft 21 200–300 ft 48 300–400 ft 17 400–600 ft 4 600+ ft 0
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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.