⟁ Washington Well Data field records · 2026 survey

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Jon Knapp

Recorded as the driller on 432 water wells across 7 Washington counties in Washington State Department of Ecology well construction reports, most in Mason County. Well-log records span 1991–2009.

432wells on record
—since 2022
7counties served
119 ftmedian depth

Counties served

Wells drilled by Jon Knapp, by county, across the full record.

CountyWells drilled
Mason County 226
Kitsap County 172
Pierce County 27
Grays Harbor County 4
Spokane County 1
Columbia County 1
Cowlitz County 1

Well characteristics

Across the wells Jon Knapp has drilled, the median depth is 119 ft (middle half 78 ft–194 ft), median tested yield 12 gpm, and median static water level 125 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Jon Knapp, straight from the public Ecology record:

"Records span 1991–2009" refers to the earliest and latest well logs attributed to this company in the Ecology 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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