⟁ Illinois Well Data field records · 2026 survey

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Dowell, S.l.

Recorded as the driller on 504 water wells across 19Illinoiscounties in the Illinois State Geological Survey water well records, most in Mason County. Well-log records span 1995–2012.

504wells on record
—since 2022
19counties served
81 ftmedian depth

Counties served

Wells drilled by Dowell, S.l., by county, across the full record.

CountyWells drilled
Mason County308
Tazewell County120
Cass County33
Schuyler County7
Mclean County6
Logan County5
Woodford County4
Peoria County4
Henderson County3
Madison County2
Scott County2
Macon County2
Show all 19counties
Menard County2
Sangamon County1
Morgan County1
Dewitt County1
Fulton County1
Livingston County1
Putnam County1

Well characteristics

Across the wells Dowell, S.l. has drilled, the median depth is 81 ft (middle half 63 ft–109 ft), median tested yield 20 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 Dowell, S.l., straight from the public ISGS record:

"Records span 1995–2012" 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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