⟁ California Well Data field records · 2026 survey

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Mariposa Well Drilling Company Inc.

Recorded as the driller on 1,146 water wells across 6 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Mariposa County. Well-log records span 1977–2019.

1,146wells on record
—since 2022
6counties served
220 ftmedian depth

Counties served

Wells drilled by Mariposa Well Drilling Company Inc., by county, across the full record.

CountyWells drilled
Mariposa County 1,101
Madera County 33
Merced County 6
Tuolumne County 3
Fresno County 2
Stanislaus County 1

Well characteristics

Across the wells Mariposa Well Drilling Company Inc. has drilled, the median depth is 220 ft (middle half 160 ft–323 ft), median tested yield 10 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 Mariposa Well Drilling Company Inc., straight from the public DWR record:

"Records span 1977–2019" 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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