GroundRosterOlson Fencing and Excavation LLCLicensed
| Name | Olson Fencing and Excavation LLC |
| Company | Ethan Olson |
| License type | Licensed Septic System Installer |
| License status | Active — ND DEQ licensed (DEQ) |
| Based in | Killdeer, Dunn County, North Dakota 58640 |
| Phone | (701) 690-7834 |
"Based in" is the city and county of the address 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 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.
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