GroundRosterTrue Grade LLCLicensed
| Name | True Grade LLC |
| Company | Owen Grahl |
| License type | Licensed Septic System Installer |
| License status | Active — ND DEQ licensed (DEQ) |
| Location | Mandan, North Dakota 58554 |
| Phone | (701) 202-9885 |
Request a quote from True Grade LLC
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 North Dakota's official licensing records; we do not vouch for the business itself. Before hiring, look up this license directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: North Dakota DEQ - Licensed Septic System Installers, last checked 2026-08-17. Verify at the official source.
Are you True Grade LLC? Claim this listing to set your business name and add your website, service area, hours, and photos. It's free.