Rockwell Drilling Co.
Recorded as the driller on 244 water wells across 8 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Tulare County. Well-log records span 1962–1991.
Counties served
Wells drilled by Rockwell Drilling Co., by county, across the full record.
| County | Wells drilled |
|---|---|
| Tulare County | 101 |
| Fresno County | 93 |
| Mariposa County | 20 |
| Riverside County | 16 |
| San Diego County | 7 |
| Placer County | 3 |
| Madera County | 2 |
| Merced County | 2 |
Well characteristics
Across the wells Rockwell Drilling Co. has drilled, the median depth is 180 ft (middle half 120 ft–275 ft), median tested yield 10 gpm, and median static water level 30 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 1962–1991" 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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