Castle Well Drilling Inc.
Recorded as the driller on 294 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 2018–2026.
Counties served
Wells drilled by Castle Well Drilling Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| San Joaquin County | 168 |
| Stanislaus County | 60 |
| Contra Costa County | 44 |
| Merced County | 12 |
| Alameda County | 6 |
| Sacramento County | 4 |
Well characteristics
Across the wells Castle Well Drilling Inc. has drilled, the median depth is 280 ft (middle half 240 ft–300 ft), median tested yield 20 gpm, and median static water level 172 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Castle Well Drilling Inc., straight from the public DWR record:
"Records span 2018–2026" 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.
Free. Goes to licensed drillers working San Joaquin County, including Castle Well Drilling Inc..
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