⟁ Washington Well Data field records · 2026 survey

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Marshall Miller

Recorded as the driller on 2,236 water wells across 5 Washington counties in Washington State Department of Ecology well construction reports, most in Okanogan County. Well-log records span 1971–2020.

2,236wells on record
—since 2022
5counties served
184 ftmedian depth

Counties served

Wells drilled by Marshall Miller, by county, across the full record.

CountyWells drilled
Okanogan County 1,348
Chelan County 637
Douglas County 247
Grant County 2
Spokane County 2

Well characteristics

Across the wells Marshall Miller has drilled, the median depth is 184 ft (middle half 70 ft–386 ft), median tested yield 12 gpm, and median static water level 64 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Marshall Miller, straight from the public Ecology record:

"Records span 1971–2020" 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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