Johnson Drilling Co.
Recorded as the driller on 11,872 water wells across 38 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Fresno County. Well-log records span 1892–2026.
Counties served
Wells drilled by Johnson Drilling Co., by county, across the full record.
| County | Wells drilled |
|---|---|
| Fresno County | 7,293 |
| Tulare County | 2,418 |
| Kern County | 1,065 |
| Madera County | 452 |
| Alameda County | 145 |
| Santa Clara County | 68 |
| San Diego County | 65 |
| Mono County | 59 |
| Yuba County | 58 |
| San Joaquin County | 32 |
| Mariposa County | 25 |
| Sacramento County | 24 |
Show all 38 counties
Well characteristics
Across the wells Johnson Drilling Co. has drilled, the median depth is 245 ft (middle half 156 ft–405 ft), median tested yield 50 gpm, and median static water level 50 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Johnson Drilling Co., straight from the public DWR record:
"Records span 1892–2026" 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 Fresno County, including Johnson Drilling Co..
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This page is built from the public DWR well-log record and helps property owners find a driller. Claim it (free) to confirm the details are right and give customers a way to reach you.
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