⟁ Illinois Well Data field records · 2026 survey

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Olson Well & Pump Co.

Recorded as the driller on 214 water wells across 7Illinoiscounties in the Illinois State Geological Survey water well records, most in Winnebago County. Well-log records span 1970–2005.

214wells on record
—since 2022
7counties served
150 ftmedian depth

Counties served

Wells drilled by Olson Well & Pump Co., by county, across the full record.

CountyWells drilled
Winnebago County152
Stephenson County31
Ogle County21
Boone County5
Carroll County3
Iroquois County1
Jo Daviess County1

Well characteristics

Across the wells Olson Well & Pump Co. has drilled, the median depth is 150 ft (middle half 114 ft–195 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 Olson Well & Pump Co., straight from the public ISGS record:

"Records span 1970–2005" 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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