⟁ California Well Data field records · 2026 survey

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Maggiora Bros Drilling Inc.

Recorded as the driller on 4,676 water wells across 34 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Santa Clara County. Well-log records span 1960–2026.

4,676wells on record
170since 2022
34counties served
260 ftmedian depth

Counties served

Wells drilled by Maggiora Bros Drilling Inc., by county, across the full record.

CountyWells drilled
Santa Clara County 1,467
Santa Cruz County 1,165
Monterey County 905
San Benito County 425
San Mateo County 190
Alameda County 148
Stanislaus County 61
Merced County 51
Fresno County 43
Contra Costa County 35
Sacramento County 31
San Joaquin County 23
Show all 34 counties
Santa Barbara County 15
Lake County 13
Sonoma County 12
Solano County 10
Tulare County 9
Siskiyou County 9
Inyo County 8
Los Angeles County 7
San Francisco County 7
Kings County 7
Madera County 7
Kern County 6
Placer County 3
Amador County 3
San Luis Obispo County 3
Mariposa County 3
Ventura County 2
Marin County 2
Napa County 2
Colusa County 2
Sutter County 1
Tehama County 1

Well characteristics

Across the wells Maggiora Bros Drilling Inc. has drilled, the median depth is 260 ft (middle half 160 ft–405 ft), median tested yield 40 gpm, and median static water level 67 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Maggiora Bros Drilling Inc., straight from the public DWR record:

"Records span 1960–2026" 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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