Marshall Drilling
Recorded as the driller on 196 water wells across 6 Colorado counties in the Colorado Division of Water Resources (DWR) well permit database, most in Boulder County. Well-log records span 1953–1982.
Counties served
Wells drilled by Marshall Drilling, by county, across the full record.
| County | Wells drilled |
|---|---|
| Boulder County | 123 |
| Weld County | 52 |
| Larimer County | 14 |
| Adams County | 3 |
| Jefferson County | 3 |
| Broomfield County | 1 |
Well characteristics
Across the wells Marshall Drilling has drilled, the median depth is 51 ft (middle half 43 ft–67 ft), median tested yield 15 gpm, and median static water level 8 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 Drilling, straight from the public DWR record:
"Records span 1953–1982" 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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