Kohnen, Clarence E.
Recorded as the driller on 159 water wells across 15 Illinois counties in the Illinois State Geological Survey water well records, most in St. Clair County. Well-log records span 1966–1992.
Counties served
Wells drilled by Kohnen, Clarence E., by county, across the full record.
| County | Wells drilled |
|---|---|
| St. Clair County | 91 |
| Madison County | 19 |
| Clinton County | 12 |
| Crawford County | 8 |
| Jasper County | 6 |
| Richland County | 6 |
| Effingham County | 3 |
| Jefferson County | 3 |
| Randolph County | 3 |
| Coles County | 2 |
| Fayette County | 2 |
| Bond County | 1 |
…and 3 more Illinois counties.
Well characteristics
Across the wells Kohnen, Clarence E. has drilled, the median depth is 37 ft (middle half 30 ft–47 ft), median tested yield 70 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 Kohnen, Clarence E., straight from the public ISGS record:
"Records span 1966–1992" 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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