What are the grease trap requirements in Auburn, WA?

Food service establishments in Auburn must install and maintain grease traps or interceptors per local FOG ordinances. The city follows the Uniform Plumbing Code (UPC).

Do I need a grease trap permit in Auburn?

Yes, a FOG permit is required in Auburn.

What size grease trap do I need for my restaurant in Auburn?

Grease trap sizing depends on your establishment's flow rate, number of fixtures, and local code requirements. Use our free sizing calculator for a recommendation.

Grease Trap Requirements
Auburn, WA

FOG compliance regulations for food service establishments in Auburn, Washington.

Every 90 days (grease traps)

Pumping Freq.

Required

Permit

Yes

25% Rule

UPC

Code Base

Pumping Requirements

Frequency Every 90 days (grease traps); Quarterly (grease interceptors)

25% Rule Applies

Permits & Enforcement

Permit Required Required

Complete FOG Regulations

Pumping Frequency	Every 90 days (grease traps); Quarterly (grease interceptors)
25% Rule	Yes — trap must be pumped when grease and solids reach 25% of capacity
Permit Required	Yes
Inspections	Per FOG plan schedule
Record Keeping	Required — maintain pumping logs and manifests on-site
Plumbing Code	Uniform Plumbing Code (UPC)
Ordinance Ref.	Auburn City Code Chapter 13.22 (Fats, Oil and Grease Control Plans), Section 13.22.070
Authority	City of Auburn (WA) Public Works Department

Additional Notes

FOG Control Plan required as part of business license application for any food-serving establishment. Maintenance reports must be sent to city within 10 days of service. King County Metro discharge limit: FOG limited to 100 mg/L. Emulsifying agents prohibited. Grease trap maintenance includes grease layer removal, baffle scraping, and sediment removal.

Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.