Doshier-Gregson Inc.
Recorded as the driller on 1,156 water wells across 6 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Napa County. Well-log records span 1962–2021.
Counties served
Wells drilled by Doshier-Gregson Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Napa County | 842 |
| Solano County | 283 |
| Sonoma County | 15 |
| Contra Costa County | 7 |
| Yolo County | 6 |
| Marin County | 3 |
Well characteristics
Across the wells Doshier-Gregson Inc. has drilled, the median depth is 250 ft (middle half 160 ft–380 ft), median tested yield 30 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 Doshier-Gregson Inc., straight from the public DWR record:
"Records span 1962–2021" 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 Napa County, including Doshier-Gregson Inc..
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