How often do grease traps have to be pumped in Portland, OR?

Pump at least every 60 days. Source: the official program source, checked 2026-10-17. Rules change; confirm with the local sewer authority.

States / Oregon / Portland

Portland, OR grease trap & interceptor requirements

Quoted from official source Last checked 2026-10-17. Report an error / rule changed

Quick answer

How often to pump: At least every 60 days
Interceptor minimum / sizing: not stated in the sources we checked
Permit / fees: not stated in the sources we checked

From the official source(s) below, last checked 2026-10-17. Rules change; verify with your city.

Rules change; verify with your city. Summaries are plain-English restatements of the official source linked below; “Source says” shows the exact wording. Blank rows mean the sources we checked did not state that rule, not that there is no rule.

Required trap / interceptor type	Source says: “Be exempted from the requirement to install grease interceptors.”
Sizing rule	Source says: “Provide a sampling access downstream of all interceptors with a cumulative capacity of 500 gallons or greater to allow for periodic sampling by BES or the facility operator;”
Pumping / cleaning frequency	Pump at least every 60 days. Source says “A grease interceptor is out of service for more than 60 days but less than 90 days due to repairs. c.”
Permit required?	Not stated in the sources we checked
Permit & program fees	Not stated in the sources we checked
Inspections	Grease traps/interceptors are subject to inspection. Source says “Inspections may occur at any time without warning during and after normal working hours to verify appropriate grease interceptor cleaning or during an emergency response or blockage investigation.”
Record keeping	Not stated in the sources we checked
Pumper / hauler approval	Use an approved / licensed grease hauler. Source says “Pumpers registered with the Preferred Pumper Program certify that they will follow pump-out criteria.”
Reporting portal	Not stated in the sources we checked
Fines & penalties	Not stated in the sources we checked
Program contact	[email protected] · 503-823-7093

Sources

https://www.portland.gov/sites/default/files/2020-06/enb-4-26-fog-7-19-380679.pdf · checked 2026-10-17
https://www.portland.gov/bes/preventing-pollution/fats-oil-and-grease/grease-interceptors · checked 2026-10-17

Find a grease trap pumper in Portland

Compare pumpers that service Portland and check they meet the city's hauler rules above. Directory coming soon.

Get notified

Pump grease traps in Portland?

Put your company in front of restaurants checking these rules. Featured listing (paid) – coming soon.

List your company

Size your interceptor

Use the grease interceptor sizing calculator (UPC, IPC and PDI methods), then confirm Portland's own minimums above. Not sure how often to pump? Read how often to pump a grease trap.