Martell Water Systems Inc.
Recorded as the driller on 1,094 water wells across 23 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Contra Costa County. Well-log records span 1966–2026.
Counties served
Wells drilled by Martell Water Systems Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Contra Costa County | 652 |
| Alameda County | 347 |
| Solano County | 25 |
| San Joaquin County | 15 |
| Sacramento County | 10 |
| Santa Clara County | 8 |
| Nevada County | 7 |
| San Mateo County | 5 |
| Riverside County | 4 |
| Marin County | 4 |
| Mendocino County | 3 |
| Yolo County | 3 |
Show all 23 counties
| Calaveras County | 1 |
| Los Angeles County | 1 |
| Ventura County | 1 |
| Santa Cruz County | 1 |
| Stanislaus County | 1 |
| Mariposa County | 1 |
| Napa County | 1 |
| Sonoma County | 1 |
| Butte County | 1 |
| Shasta County | 1 |
| Siskiyou County | 1 |
Well characteristics
Across the wells Martell Water Systems Inc. has drilled, the median depth is 227 ft (middle half 150 ft–320 ft), median tested yield 30 gpm, and median static water level 39 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Martell Water Systems Inc., straight from the public DWR record:
"Records span 1966–2026" 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 Contra Costa County, including Martell Water Systems Inc..
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