⟁ California Well Data field records · 2026 survey

California Well Data › Alameda County › Union City (94587)

Union City, CA (94587): well depth, water level & drilling cost

✓ 618 DWR records · Alameda County

149 ftmedian well depth
55 ft–260 fttypical depth range
34 ftmedian static water level
189 gpmmedian yield (10 tests)

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How deep are wells in and around Union City (94587), California?

The median drilled well depth in and around Union City (94587) is 149 ft, based on 290 wells with recorded depths in the state DWR database. Half fall between 55 ft and 260 ft; 90% are shallower than 400 ft.

How much does it cost to drill a well in and around Union City (94587)?

Applying published per-foot rates to the local median depth of 149 ft: drilling and casing alone typically runs $3,725–$9,685; a complete system including pump, pressure tank, and hookup typically runs $8,940–$14,900. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Union City (94587)?

The median static water level is 34 ft below ground surface (middle half of wells: 14 ft–65 ft), from 41 measurements.

Drilled depth distribution

0–50 ft 63 50–100 ft 53 100–150 ft 29 150–200 ft 19 200–300 ft 69 300–400 ft 27 400–600 ft 28 600+ ft 2
Looking at a specific property in Union City (94587)?

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Part of Alameda 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.