⟁ California Well Data field records · 2026 survey

California Well Data › Marin County › Bolinas (94924)

Bolinas, CA (94924): well depth, water level & drilling cost

✓ 124 DWR records · Marin County

155 ftmedian well depth
43 ft–220 fttypical depth range
27 ftmedian static water level
8 gpmmedian yield (64 tests)

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How deep are wells in and around Bolinas (94924), California?

The median drilled well depth in and around Bolinas (94924) is 155 ft, based on 95 wells with recorded depths in the state DWR database. Half fall between 43 ft and 220 ft; 90% are shallower than 300 ft.

How much does it cost to drill a well in and around Bolinas (94924)?

Applying published per-foot rates to the local median depth of 155 ft: drilling and casing alone typically runs $3,875–$10,075; a complete system including pump, pressure tank, and hookup typically runs $9,300–$15,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Bolinas (94924)?

The median static water level is 27 ft below ground surface (middle half of wells: 16 ft–45 ft), from 53 measurements.

Drilled depth distribution

0–50 ft 29 50–100 ft 11 100–150 ft 5 150–200 ft 15 200–300 ft 23 300–400 ft 12 400–600 ft 0 600+ ft 0
Looking at a specific property in Bolinas (94924)?

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Part of Marin 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.