GroundRosterDiamond Contracting CorpLicensed
License details
| License number | 834 |
| License type | Licensed OWTS Contractor |
| License status | Licensed, Jefferson County |
| Based in | Arvada, Jefferson County, Colorado 80007 |
| Licensed by | Jefferson County |
"Based in" is the city and county of the address on the business's license record.
How to verify this license
We publish the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #834 directly with the agency that issued it, 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. Look it up at the issuing agency.
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