⟁ California Well Data field records · 2026 survey

California Well Data › Marin County › San Anselmo (94960)

San Anselmo, CA (94960): well depth, water level & drilling cost

✓ 108 DWR records · Marin County

48 ftmedian well depth
40 ft–125 fttypical depth range
15 ftmedian static water level
5 gpmmedian yield (36 tests)

Pull every recorded well near a San Anselmo (94960) address — $49

How deep are wells in and around San Anselmo (94960), California?

The median drilled well depth in and around San Anselmo (94960) is 48 ft, based on 47 wells with recorded depths in the state DWR database. Half fall between 40 ft and 125 ft; 90% are shallower than 260 ft.

How much does it cost to drill a well in and around San Anselmo (94960)?

Applying published per-foot rates to the local median depth of 48 ft: drilling and casing alone typically runs $1,200–$3,120; a complete system including pump, pressure tank, and hookup typically runs $2,880–$4,800. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around San Anselmo (94960)?

The median static water level is 15 ft below ground surface (middle half of wells: 11 ft–21 ft), from 30 measurements.

Drilled depth distribution

0–50 ft 26 50–100 ft 4 100–150 ft 6 150–200 ft 2 200–300 ft 5 300–400 ft 3 400–600 ft 1 600+ ft 0
Looking at a specific property in San Anselmo (94960)?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

Free lookup Property report — $49
Get quotes from drillers who work in San Anselmo (94960)

Free. Goes to licensed drillers working Marin County.

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.