⟁ California Well Data field records · 2026 survey

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Big Valley Drilling

Recorded as the driller on 294 water wells across 9 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Monterey County. Well-log records span 1972–2019.

294wells on record
—since 2022
9counties served
338 ftmedian depth

Counties served

Wells drilled by Big Valley Drilling, by county, across the full record.

CountyWells drilled
Monterey County 200
San Benito County 60
Santa Clara County 12
Santa Cruz County 10
Stanislaus County 4
San Joaquin County 4
Santa Barbara County 2
Kern County 1
Napa County 1

Well characteristics

Across the wells Big Valley Drilling has drilled, the median depth is 338 ft (middle half 180 ft–522 ft), median tested yield 470 gpm, and median static water level 50 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Big Valley Drilling, straight from the public DWR record:

"Records span 1972–2019" refers to the earliest and latest well logs attributed to this company in the DWR database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.

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