What are the grease trap requirements in Fresno, CA?

Food service establishments in Fresno 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 Fresno?

Yes, a FOG permit is required in Fresno.

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

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

Grease Trap Requirements
Fresno, CA

FOG compliance regulations for food service establishments in Fresno, California. Serving 1,730 food service establishments.

Grease traps every 90 days or

Pumping Freq.

Required

Permit

Yes

25% Rule

UPC

Code Base

Pumping Requirements

Frequency Grease traps every 90 days or when 25% rule triggered; gravity interceptors at interval not exceeding 6 months

25% Rule Applies

Permits & Enforcement

Permit Required Required

Max Fine 1000

Complete FOG Regulations

Minimum Trap Size	Sized per California Uniform Plumbing Code
Pumping Frequency	Grease traps every 90 days or when 25% rule triggered; gravity interceptors at interval not exceeding 6 months
25% Rule	Yes — trap must be pumped when grease and solids reach 25% of capacity
Permit Required	Yes
Maximum Fine	1000
Inspections	Periodic inspections by Department of Public Utilities
Record Keeping	Required — maintain pumping logs and manifests on-site
Plumbing Code	Uniform Plumbing Code (UPC)
Ordinance Ref.	Chapter 6, Article 3, Section 6-321.1 (FOG Control Program), Fresno Municipal Code
Authority	City of Fresno Department of Public Utilities

Additional Notes

Existing FSEs must install grease interceptor within 180 days of notice from Director. No dishwashers connected to grease traps. Wastewater over 140°F prohibited from grease traps. First missed manifest upload triggers $250 administrative fee. Misdemeanor conviction up to $1,000 fine and/or up to 1 year imprisonment.

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