Montana Well Data field records · 2026 survey

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Krass Drilling & Pump Service

Recorded as the driller on 263 water wells across 11 Montana counties in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC), most in Sanders County. Well-log records span 1960–2013.

263wells on record
since 2022
11counties served
225 ftmedian depth

Counties served

Wells drilled by Krass Drilling & Pump Service, by county, across the full record.

CountyWells drilled
Sanders County 192
Missoula County 17
Mineral County 16
Lake County 12
Blaine County 10
Phillips County 6
Lincoln County 4
Ravalli County 3
Big Horn County 1
Chouteau County 1
Valley County 1

Well characteristics

Across the wells Krass Drilling & Pump Service has drilled, the median depth is 225 ft (middle half 121 ft–345 ft), median tested yield 25 gpm, and median static water level 90 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Krass Drilling & Pump Service, straight from the public MBMG record:

"Records span 1960–2013" refers to the earliest and latest well logs attributed to this company in the MBMG 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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