Wellco Drilling Inc.
Recorded as the driller on 1,375 water wells across 4 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Madera County. Well-log records span 1987–2026.
Counties served
Wells drilled by Wellco Drilling Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Madera County | 1,137 |
| Mariposa County | 196 |
| Fresno County | 39 |
| Merced County | 2 |
Well characteristics
Across the wells Wellco Drilling Inc. has drilled, the median depth is 602 ft (middle half 402 ft–850 ft), median tested yield 22 gpm, and median static water level 92 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 1987–2026" 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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