Callihan, Michael M.
Recorded as the driller on 218 water wells across 5 Illinois counties in the Illinois State Geological Survey water well records, most in Adams County. Well-log records span 1958–1992.
Counties served
Wells drilled by Callihan, Michael M., by county, across the full record.
| County | Wells drilled |
|---|---|
| Adams County | 143 |
| Pike County | 72 |
| Hancock County | 1 |
| Jersey County | 1 |
| St. Clair County | 1 |
Well characteristics
Across the wells Callihan, Michael M. has drilled, the median depth is 190 ft (middle half 135 ft–275 ft), median tested yield 10 gpm, and median static water level — below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Callihan, Michael M., straight from the public ISGS record:
"Records span 1958–1992" refers to the earliest and latest well logs attributed to this company in the ISGS 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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