Layne Christensen Company
Recorded as the driller on 2,362 water wells across 38 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Yolo County. Well-log records span 1943–2026.
Counties served
Wells drilled by Layne Christensen Company, by county, across the full record.
| County | Wells drilled |
|---|---|
| Yolo County | 515 |
| San Bernardino County | 331 |
| Riverside County | 247 |
| Los Angeles County | 240 |
| Solano County | 154 |
| Fresno County | 97 |
| Orange County | 87 |
| Kings County | 82 |
| Ventura County | 78 |
| Kern County | 71 |
| Sacramento County | 61 |
| San Diego County | 45 |
…and 26 more California counties.
Well characteristics
Across the wells Layne Christensen Company has drilled, the median depth is 500 ft (middle half 260 ft–810 ft), median tested yield 1,500 gpm, and median static water level 142 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 1943–2026" 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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