⟁ California Well Data field records · 2026 survey

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Spectrum Exploration Inc.

Recorded as the driller on 307 water wells across 23 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Santa Clara County. Well-log records span 1987–2006.

307wells on record
—since 2022
23counties served
53 ftmedian depth

Counties served

Wells drilled by Spectrum Exploration Inc., by county, across the full record.

CountyWells drilled
Santa Clara County 129
Yolo County 52
Solano County 29
Sacramento County 21
Contra Costa County 16
San Joaquin County 8
Merced County 7
Alameda County 6
Sonoma County 5
Sutter County 4
San Benito County 4
Mono County 4
Show all 23 counties
Napa County 4
Riverside County 3
San Mateo County 3
Los Angeles County 2
Monterey County 2
Mendocino County 1
Kern County 1
San Bernardino County 1
Fresno County 1
San Francisco County 1
Tuolumne County 1

Well characteristics

Across the wells Spectrum Exploration Inc. has drilled, the median depth is 53 ft (middle half 30 ft–173 ft), median tested yield 60 gpm, and median static water level 44 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Spectrum Exploration Inc., straight from the public DWR record:

"Records span 1987–2006" 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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