GroundRosterKoch Excavation Inc
| Name | Koch Excavation Inc |
| License number | 39847 |
| License type | Septic Installer |
| License status | Issued — Oregon DEQ |
| License expires | 06/30/2027 |
| Based in | Silverton, Oregon 97381 |
| Phone | (209) 628-3689 |
"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 Oregon's official licensing records; we do not vouch for the business itself. Before hiring, look up license #39847 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Oregon DEQ - Sewage Disposal Service Licensed Businesses, last checked 2026-08-17. Verify at the official source.
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