⟁ California Well Data field records · 2026 survey

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R & B Drilling

Recorded as the driller on 761 water wells across 4 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Mendocino County. Well-log records span 1960–2006.

761wells on record
—since 2022
4counties served
119 ftmedian depth

Counties served

Wells drilled by R & B Drilling, by county, across the full record.

CountyWells drilled
Mendocino County 756
Sonoma County 3
Contra Costa County 1
Calaveras County 1

Well characteristics

Across the wells R & B Drilling has drilled, the median depth is 119 ft (middle half 69 ft–200 ft), median tested yield 6 gpm, and median static water level 25 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by R & B Drilling, straight from the public DWR record:

"Records span 1960–2006" 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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