Environmental Control Associates
Recorded as the driller on 277 water wells across 9 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Santa Clara County. Well-log records span 1995–2025.
Counties served
Wells drilled by Environmental Control Associates, by county, across the full record.
| County | Wells drilled |
|---|---|
| Santa Clara County | 159 |
| Santa Cruz County | 43 |
| Alameda County | 32 |
| Contra Costa County | 26 |
| Monterey County | 5 |
| Sacramento County | 4 |
| San Mateo County | 4 |
| San Francisco County | 3 |
| Fresno County | 1 |
Well characteristics
Across the wells Environmental Control Associates has drilled, the median depth is 10 ft (middle half 6 ft–15 ft), median tested yield 3 gpm, and median static water level 12 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 1995–2025" 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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