GroundRosterLone Mountain Construction, LLC, Licensed
License details
| Company | Cal Curry |
| License number | MI 2604 |
| License type | Installer |
| License status | Active, King County certified master installer |
| Based in | Auburn, King County, Washington 98092 |
| Licensed by | King County |
"Based in" is the city and county of the address on the business's license record.
What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
How to check this license
License details are indexed from state and county licensing records as of 2026-08-19. We shorten or reword some labels. The agency's record controls, and we do not vouch for the business itself. Before hiring, look up license #MI 2604 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.
Source: King County Public Health - Master Installers (OSS), last checked 2026-08-19. Check current status at the state agency website.
GroundRoster is an independent publisher of public licensing records, not a government agency or licensing board. The business has not claimed this listing and is not affiliated with GroundRoster. Always confirm current license standing with the issuing state or county agency before hiring.
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