⟁ California Well Data field records · 2026 survey

California Well Data › San Mateo County › Loma Mar (94021)

Loma Mar, CA (94021): well depth, water level & drilling cost

✓ 132 DWR records · San Mateo County

160 ftmedian well depth
100 ft–230 fttypical depth range
28 ftmedian static water level
11 gpmmedian yield (61 tests)

Pull every recorded well near a Loma Mar (94021) address — $49

How deep are wells in and around Loma Mar (94021), California?

The median drilled well depth in and around Loma Mar (94021) is 160 ft, based on 104 wells with recorded depths in the state DWR database. Half fall between 100 ft and 230 ft; 90% are shallower than 289 ft.

How much does it cost to drill a well in and around Loma Mar (94021)?

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 Loma Mar (94021)?

The median static water level is 28 ft below ground surface (middle half of wells: 18 ft–50 ft), from 51 measurements.

Drilled depth distribution

0–50 ft 2 50–100 ft 19 100–150 ft 28 150–200 ft 18 200–300 ft 27 300–400 ft 8 400–600 ft 1 600+ ft 1
Looking at a specific property in Loma Mar (94021)?

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 Loma Mar (94021)

Free. Goes to licensed drillers working San Mateo County.

Part of San Mateo 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.