⟁ Illinois Well Data field records · 2026 survey

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Kohnen, Clarence E.

Recorded as the driller on 172 water wells across 15Illinoiscounties in the Illinois State Geological Survey water well records, most in St. Clair County. Well-log records span 1966–1992.

172wells on record
—since 2022
15counties served
37 ftmedian depth

Counties served

Wells drilled by Kohnen, Clarence E., by county, across the full record.

CountyWells drilled
St. Clair County104
Madison County19
Clinton County12
Crawford County8
Richland County6
Jasper County6
Randolph County3
Jefferson County3
Effingham County3
Fayette County2
Coles County2
Perry County1
Show all 15counties
Washington County1
Marion County1
Bond County1

Well characteristics

Across the wells Kohnen, Clarence E. has drilled, the median depth is 37 ft (middle half 30 ft–46 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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