GroundRosterHier Drilling CO INCLicensed
| Name | Hier Drilling CO INC |
| Company | Hier, Bruce A. |
| License type | Licensed Well Driller |
| License status | Active — Colorado DWR licensed |
| Based in | Castle Rock, Colorado 80104 |
| Phone | (303) 688-3012 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Drilling / construction: licensed to bore, case, complete, and plug water wells.
How to verify this license
We publish the license details exactly as they appear in Colorado's official licensing records; we do not vouch for the business itself. Before hiring, look up this license directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Colorado DWR - Licensed Drilling & Pump Installation Contractors, last checked 2026-08-17. Verify at the official source.
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