Gregg Drilling LLC
Recorded as the driller on 558 water wells across 36 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Alameda County. Well-log records span 2003–2026.
Counties served
Wells drilled by Gregg Drilling LLC, by county, across the full record.
| County | Wells drilled |
|---|---|
| Alameda County | 129 |
| Santa Clara County | 115 |
| Los Angeles County | 63 |
| San Mateo County | 36 |
| Contra Costa County | 30 |
| San Luis Obispo County | 19 |
| Humboldt County | 18 |
| Orange County | 15 |
| Shasta County | 15 |
| Marin County | 13 |
| Nevada County | 12 |
| San Bernardino County | 9 |
…and 24 more California counties.
Well characteristics
Across the wells Gregg Drilling LLC has drilled, the median depth is 45 ft (middle half 25 ft–70 ft), median tested yield 2 gpm, and median static water level 16 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 2003–2026" 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.
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