Septage Hauler Program

Our septage procedures are designed to comply with all applicable District, State and Federal regulations. Septage is regulated by our Rules and Regulations. The Tri-City Water Resource Recovery Facility (TCWRRF) is the only designated receiving facility in WES. Haulers that discharge septage at the TCWRRF are required to have a valid Septic Tank Waste Discharge Permit, which is issued for a three-year period.

Permit Application Process

To apply for a WES Septic Tank Waste Discharge Permit, septage haulers must complete and submit a completed Application for Permit form, current copy of DEQ license for sewage disposal, a $10,000 Surety Bond or Bond Continuation Certificate, a current copy of the DEQ Pumping Truck Inspection Report and three-year permit* fee. The application review process takes approximately 3–5 days after which the WES staff will then issue or deny a septage discharge permit.

Septic Tank Waste Discharge Permit application can be downloaded online. For additional information, contact WES Industrial Pretreatment Program at 503-557-2834.

* WES Septic Tank Waste Discharge Permit is a three (3) year permit, however, surety bonds, DEQ license, and DEQ Truck Inspection are issued annually. An updated copy of these items must be submitted to WES Septage Program annually.


WES accepts septage originating from within Clackamas, Multnomah and Washington Counties. City, State, and Federal regulations prohibit septage haulers from discharging industrial process wastes at the TCWRRF.

Septage loads are accepted Monday through Friday (except on holidays) between 6 a.m. and 3 p.m.


150 Beavercreek Road #430, Oregon City, OR 97045

Office Hours:

Lobby open
Monday to Thursday
7:30 a.m. to 5 p.m.

Phone hours
Monday to Thursday
7:30 a.m. to 5:30 p.m.

Utility services
Permit services

Related Events
Board of County Commissioners, Water Environment Services, North Clackamas Parks and Recreation