GroundRosterMagnum ExcavatingLicensed
| Name | Magnum Excavating |
| License number | 758 |
| License type | Licensed OWTS Contractor |
| License status | Licensed - Jefferson County |
| Based in | Castle Rock, Colorado 80109 |
| Phone | (303) 419-4408 |
"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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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 license #758 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Jefferson County Public Health - List of Licensed OWTS Contractors, last checked 2026-08-19. Verify at the official source.
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