Hier Drilling Co. Inc.
Recorded as the driller on 9,471 water wells across 19 Colorado counties in the Colorado Division of Water Resources (DWR) well permit database, most in Douglas County. Well-log records span 1900–2026.
Counties served
Wells drilled by Hier Drilling Co. Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Douglas County | 6,105 |
| Elbert County | 1,745 |
| Arapahoe County | 1,267 |
| Jefferson County | 165 |
| Adams County | 70 |
| El Paso County | 42 |
| Denver County | 31 |
| Weld County | 15 |
| Broomfield County | 7 |
| Boulder County | 5 |
| Park County | 5 |
| Morgan County | 4 |
…and 7 more Colorado counties.
Well characteristics
Across the wells Hier Drilling Co. Inc. has drilled, the median depth is 418 ft (middle half 320 ft–578 ft), median tested yield 13 gpm, and median static water level 200 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Hier Drilling Co. Inc., straight from the public DWR record:
"Records span 1900–2026" 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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