⟁ Illinois Well Data field records · 2026 survey

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Calhoun Drlg. Co.

Recorded as the driller on 29 water wells across 6Illinoiscounties in the Illinois State Geological Survey water well records, most in Calhoun County. Well-log records span 1940–1983.

29wells on record
—since 2022
6counties served
76 ftmedian depth

Counties served

Wells drilled by Calhoun Drlg. Co., by county, across the full record.

CountyWells drilled
Calhoun County15
Pike County8
Clinton County2
Macoupin County2
Jersey County1
Adams County1

Well characteristics

Across the wells Calhoun Drlg. Co. has drilled, the median depth is 76 ft (middle half 60 ft–450 ft), median tested yield 78 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 Calhoun Drlg. Co., straight from the public ISGS record:

"Records span 1940–1983" 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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