GroundRosterBlack Diamond ExcavatingLicensed
| Name | Black Diamond Excavating |
| License number | 208 |
| License type | Licensed OWTS Contractor |
| License status | Licensed - Jefferson County |
| Based in | Black Hawk, Gilpin County, Colorado 80422 |
| Licensed by | Jefferson County |
| Phone | (303) 582-3806 |
"Based in" is the city and county of the address on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
Request a quote from Black Diamond Excavating
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 #208 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.
Are you Black Diamond Excavating? Claim this listing to show your business name on it. It's free, and we confirm every claim before anything changes.