⟁ California Well Data field records · 2026 survey

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Patten Well Drilling

Recorded as the driller on 421 water wells across 4 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Placer County. Well-log records span 1966–1989.

421wells on record
—since 2022
4counties served
115 ftmedian depth

Counties served

Wells drilled by Patten Well Drilling, by county, across the full record.

CountyWells drilled
Placer County 228
Nevada County 187
El Dorado County 5
Yuba County 1

Well characteristics

Across the wells Patten Well Drilling has drilled, the median depth is 115 ft (middle half 70 ft–175 ft), median tested yield 5 gpm, and median static water level 40 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Patten Well Drilling, straight from the public DWR record:

"Records span 1966–1989" 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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