For more information on approved onsite wastewater treatment products and product approval go to the Oregon DEQ website.
- Septic Tank Approvals
- Drainfield Products
- Alternative Treatment Technology Products
- New or Innovative Technologies, Materials, or Designs for Onsite Systems
Each year suppliers and manufactures will exhibit at the Annual Oregon Onsite Wastewater Conference.
Thank you to the following suppliers, companies and members for your support:
| ADS | HD Fowler | Spartan Tool |
| Bancorp Insurance | Infiltrator Systems | Trade Tool Supply |
| Bio Microbics | Kuker Ranken | Tuf Tite |
| CSI | Matzke Sales, Inc. | Willamette Graystone |
| Containment Solutions | Michael’s Precast | Waite Concrete |
| Davis Sales | NORWESCO | |
| Delta Environmental | Mike Hamer Inc. | |
| FMI | Orenco Systems | |
| Ferguson Water Works | RepCo Sales Agency | |
| Frank J. Martin | Roth Global Plastics | |
| GeoFlow | Salcor Inc. |