GroundRosterGrayline LLCLicensed
| Name | Grayline LLC |
| License number | IL-1700007 |
| License type | Licensed OWTS Installer |
| License status | Licensed - Weld County |
| Based in | Eaton, Colorado 80615 |
| Phone | (303) 710-0501 |
"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
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
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 #IL-1700007 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Weld County Department of Public Health & Environment, last checked 2026-08-19. Verify at the official source.
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