G H Bierly Inc.
Recorded as the driller on 4,064 water wells across 24 Ohio counties in the Ohio Department of Natural Resources (ODNR) Division of Geological Survey water-well log database, most in Allen County. Well-log records span 1925–2026.
Counties served
Wells drilled by G H Bierly Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Allen County | 2,392 |
| Hardin County | 829 |
| Hancock County | 277 |
| Logan County | 189 |
| Auglaize County | 187 |
| Putnam County | 65 |
| Van Wert County | 35 |
| Wyandot County | 14 |
| Marion County | 12 |
| Wood County | 12 |
| Mercer County | 9 |
| Union County | 9 |
…and 12 more Ohio counties.
Well characteristics
Across the wells G H Bierly Inc. has drilled, the median depth is 77 ft (middle half 59 ft–110 ft), median tested yield 20 gpm, and median static water level 25 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by G H Bierly Inc., straight from the public ODNR record:
"Records span 1925–2026" 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.
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