Simpson Drilling Company
Recorded as the driller on 644 water wells across 6 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Merced County. Well-log records span 1967–1987.
Counties served
Wells drilled by Simpson Drilling Company, by county, across the full record.
| County | Wells drilled |
|---|---|
| Merced County | 388 |
| Stanislaus County | 236 |
| Mariposa County | 12 |
| San Joaquin County | 4 |
| Madera County | 3 |
| San Benito County | 1 |
Well characteristics
Across the wells Simpson Drilling Company has drilled, the median depth is 120 ft (middle half 90 ft–152 ft), median tested yield 225 gpm, and median static water level 32 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Simpson Drilling Company, straight from the public DWR record:
"Records span 1967–1987" 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 Merced County, including Simpson Drilling Company.
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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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