GroundRosterHier Drilling CO.Licensed
| Name | Hier Drilling CO. |
| Company | Trehal, Lake |
| License type | Licensed Well Driller |
| License status | Active — Colorado DWR licensed |
| Location | Castle Rock, Colorado 80104 |
| Phone | (303) 688-3012 |
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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 this listing exactly as it appears 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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