⟁ Illinois Well Data field records · 2026 survey

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Speth, David A.

Recorded as the driller on 241 water wells across 6Illinoiscounties in the Illinois State Geological Survey water well records, most in Wabash County. Well-log records span 1966–1996.

241wells on record
—since 2022
6counties served
220 ftmedian depth

Counties served

Wells drilled by Speth, David A., by county, across the full record.

CountyWells drilled
Wabash County155
Lawrence County71
Richland County11
Jasper County2
White County1
Edwards County1

Well characteristics

Across the wells Speth, David A. has drilled, the median depth is 220 ft (middle half 147 ft–294 ft), median tested yield 10 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 Speth, David A., straight from the public ISGS record:

"Records span 1966–1996" 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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