What are the grease trap requirements in Fontana, CA?

Food service establishments in Fontana 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 Fontana?

Yes, a FOG permit is required in Fontana. Fee: Per city fee schedule (contact Public Works).

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

Grease trap sizing depends on your establishment's flow rate, number of fixtures, and local code requirements. Per UPC sizing standards; gravity separation interceptors required for FSEs. Use our free sizing calculator for a recommendation.

Grease Trap Requirements
Fontana, CA

FOG compliance regulations for food service establishments in Fontana, California.

Before FOG/solids reach 25% ca

Pumping Freq.

Required

Permit

Yes

25% Rule

UPC

Code Base

Pumping Requirements

Frequency Before FOG/solids reach 25% capacity; typically every 90 days

25% Rule Applies

Permits & Enforcement

Permit Required Required

Permit Fee Per city fee schedule (contact Public Works)

Max Fine Per municipal code violation penalties

Complete FOG Regulations

Minimum Trap Size	Per UPC sizing standards; gravity separation interceptors required for FSEs
Pumping Frequency	Before FOG/solids reach 25% capacity; typically every 90 days
25% Rule	Yes — trap must be pumped when grease and solids reach 25% of capacity
Permit Required	Yes
Permit Fee	Per city fee schedule (contact Public Works)
Maximum Fine	Per municipal code violation penalties
Inspections	At least twice annually for significant industrial users; periodic for FSEs
Record Keeping	Required — maintain pumping logs and manifests on-site
Plumbing Code	Uniform Plumbing Code (UPC)
Ordinance Ref.	Fontana Municipal Code Chapter 23 (Sewers and Sewage Disposal)
Authority	City of Fontana Public Works Department / Inland Empire Utilities Agency (IEUA)

Additional Notes

IEUA provides regional sewage services. Fontana Chapter 23 defines gravity separation interceptor as approved detention chamber for removing grease, oil and solids. Director inspects significant industrial users at least twice annually. Contact Public Works at (909) 350-6760.

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