⟁ California Well Data field records · 2026 survey

California Well Data › Sonoma County › Guerneville (95446)

Guerneville, CA (95446): well depth, water level & drilling cost

✓ 225 DWR records · Sonoma County

96 ftmedian well depth
47 ft–186 fttypical depth range
23 ftmedian static water level
15 gpmmedian yield (115 tests)

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How deep are wells in and around Guerneville (95446), California?

The median drilled well depth in and around Guerneville (95446) is 96 ft, based on 167 wells with recorded depths in the state DWR database. Half fall between 47 ft and 186 ft; 90% are shallower than 267 ft.

How much does it cost to drill a well in and around Guerneville (95446)?

Applying published per-foot rates to the local median depth of 96 ft: drilling and casing alone typically runs $2,400–$6,240; a complete system including pump, pressure tank, and hookup typically runs $5,760–$9,600. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Guerneville (95446)?

The median static water level is 23 ft below ground surface (middle half of wells: 10 ft–60 ft), from 116 measurements.

Drilled depth distribution

0–50 ft 44 50–100 ft 40 100–150 ft 31 150–200 ft 13 200–300 ft 29 300–400 ft 9 400–600 ft 0 600+ ft 1
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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.