⟁ Illinois Well Data field records · 2026 survey

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Mckinney, Winifred

Recorded as the driller on 139 water wells across 3Illinoiscounties in the Illinois State Geological Survey water well records, most in Winnebago County. Well-log records span 1908–1980.

139wells on record
—since 2022
3counties served
150 ftmedian depth

Counties served

Wells drilled by Mckinney, Winifred, by county, across the full record.

CountyWells drilled
Winnebago County107
Boone County21
Ogle County11

Well characteristics

Across the wells Mckinney, Winifred has drilled, the median depth is 150 ft (middle half 121 ft–210 ft), median tested yield 30 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 Mckinney, Winifred, straight from the public ISGS record:

"Records span 1908–1980" 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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