Humboldt Drilling & Pump Co.
Recorded as the driller on 131 water wells across 17 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Sacramento County. Well-log records span 1988–2010.
Counties served
Wells drilled by Humboldt Drilling & Pump Co., by county, across the full record.
| County | Wells drilled |
|---|---|
| Sacramento County | 25 |
| El Dorado County | 16 |
| Contra Costa County | 15 |
| Alameda County | 10 |
| Mono County | 10 |
| Sierra County | 9 |
| Santa Clara County | 8 |
| Yolo County | 7 |
| Yuba County | 7 |
| San Joaquin County | 5 |
| Inyo County | 4 |
| Nevada County | 4 |
…and 5 more California counties.
Well characteristics
Across the wells Humboldt Drilling & Pump Co. has drilled, the median depth is 480 ft (middle half 310 ft–740 ft), median tested yield 1,800 gpm, and median static water level 64 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 1988–2010" 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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