⟁ Colorado Well Data field records · 2026 survey

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Ground Water Systems Inc.

Recorded as the driller on 3,481 water wells across 17Coloradocounties in the Colorado Division of Water Resources (DWR) well permit database, most in Boulder County. Well-log records span 1904–2021.

3,481wells on record
—since 2022
17counties served
350 ftmedian depth

Counties served

Wells drilled by Ground Water Systems Inc., by county, across the full record.

CountyWells drilled
Boulder County2,460
Gilpin County411
Larimer County331
Jefferson County240
Clear Creek County17
Weld County6
Broomfield County3
Park County2
Elbert County2
Grand County2
Custer County1
El Paso County1
Show all 17counties
Teller County1
Douglas County1
Arapahoe County1
Adams County1
Logan County1

Well characteristics

Across the wells Ground Water Systems Inc. has drilled, the median depth is 350 ft (middle half 225 ft–480 ft), median tested yield 7 gpm, and median static water level 40 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Ground Water Systems Inc., straight from the public DWR record:

"Records span 1904–2021" refers to the earliest and latest well logs attributed to this company in the DWR 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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