⟁ Illinois Well Data field records · 2026 survey

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Schlesser & Sons

Recorded as the driller on 28 water wells across 3Illinoiscounties in the Illinois State Geological Survey water well records, most in Cook County. Well-log records span 1948–1949.

28wells on record
—since 2022
3counties served
41 ftmedian depth

Counties served

Wells drilled by Schlesser & Sons, by county, across the full record.

CountyWells drilled
Cook County15
Lake County12
Dupage County1

Well characteristics

Across the wells Schlesser & Sons has drilled, the median depth is 41 ft (middle half 34 ft–54 ft), median tested yield 7 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 Schlesser & Sons, straight from the public ISGS record:

"Records span 1948–1949" 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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