Calvin (Denver O)
Recorded as the driller on 134 water wells across 3 Ohio counties in the Ohio Department of Natural Resources (ODNR) Division of Geological Survey water-well log database, most in Williams County. Well-log records span 1945–1970.
Counties served
Wells drilled by Calvin (Denver O), by county, across the full record.
| County | Wells drilled |
|---|---|
| Williams County | 130 |
| Defiance County | 3 |
| Wood County | 1 |
Well characteristics
Across the wells Calvin (Denver O) has drilled, the median depth is 85 ft (middle half 62 ft–108 ft), median tested yield 17 gpm, and median static water level 30 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Calvin (Denver O), straight from the public ODNR record:
"Records span 1945–1970" refers to the earliest and latest well logs attributed to this company in the ODNR 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 Williams County, including Calvin (Denver O).
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This page is built from the public ODNR 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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