⟁ Illinois Well Data field records · 2026 survey

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Hofstetter, William S.

Recorded as the driller on 697 water wells across 10Illinoiscounties in the Illinois State Geological Survey water well records, most in Peoria County. Well-log records span 1939–1994.

697wells on record
—since 2022
10counties served
79 ftmedian depth

Counties served

Wells drilled by Hofstetter, William S., by county, across the full record.

CountyWells drilled
Peoria County407
Woodford County142
Tazewell County89
Fulton County29
Stark County13
Marshall County8
Mason County6
Logan County1
Knox County1
Warren County1

Well characteristics

Across the wells Hofstetter, William S. has drilled, the median depth is 79 ft (middle half 64 ft–127 ft), median tested yield 15 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 Hofstetter, William S., straight from the public ISGS record:

"Records span 1939–1994" 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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