⟁ Illinois Well Data field records · 2026 survey

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Watson, Harold L.

Recorded as the driller on 39 water wells across 3Illinoiscounties in the Illinois State Geological Survey water well records, most in St. Clair County. Well-log records span 1939–1958.

39wells on record
—since 2022
3counties served
115 ftmedian depth

Counties served

Wells drilled by Watson, Harold L., by county, across the full record.

CountyWells drilled
St. Clair County36
Madison County2
White County1

Well characteristics

Across the wells Watson, Harold L. has drilled, the median depth is 115 ft (middle half 102 ft–120 ft), median tested yield 806 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 Watson, Harold L., straight from the public ISGS record:

"Records span 1939–1958" 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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