GroundRosterRM Earthworks LLCLicensed
| Name | RM Earthworks LLC |
| Company | Riley Mattor |
| License number | 969 |
| License type | Certified System Installer |
| License status | Current - Maine DHHS roster, expires 2030-12-31 |
| License expires | 2030-12-31 |
| Location | Hollis, Maine 04042 |
| Phone | (207) 331-2102 |
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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 this listing exactly as it appears in Maine's official licensing records; we do not vouch for the business itself. Before hiring, look up license #969 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Maine DHHS - Certified System Installers, last checked 2026-08-17. Verify at the official source.
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