Big Valley Drilling & Exploration Co.
Recorded as the driller on 32 water wells across 6 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in San Joaquin County. Well-log records span 1977–1980.
Counties served
Wells drilled by Big Valley Drilling & Exploration Co., by county, across the full record.
| County | Wells drilled |
|---|---|
| San Joaquin County | 11 |
| Sacramento County | 11 |
| Sonoma County | 6 |
| Placer County | 2 |
| Stanislaus County | 1 |
| Yolo County | 1 |
Well characteristics
Across the wells Big Valley Drilling & Exploration Co. has drilled, the median depth is 375 ft (middle half 301 ft–508 ft), median tested yield 1,000 gpm, and median static water level 45 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Big Valley Drilling & Exploration Co., straight from the public DWR record:
"Records span 1977–1980" 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.
Free. Goes to licensed drillers working San Joaquin County, including Big Valley Drilling & Exploration Co..
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