What are the grease trap requirements in Glendale, AZ?

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

Do I need a grease trap permit in Glendale?

Yes, a FOG permit is required in Glendale. Fee: Contact Liberty Utilities for current fee schedule.

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

Grease trap sizing depends on your establishment's flow rate, number of fixtures, and local code requirements. Per Liberty Utilities Industrial Pretreatment Tariff; gravity interceptors for FSEs. Use our free sizing calculator for a recommendation.

Grease Trap Requirements
Glendale, AZ

FOG compliance regulations for food service establishments in Glendale, Arizona.

Regular basis

Pumping Freq.

Required

Permit

Yes

25% Rule

IPC

Code Base

Pumping Requirements

Frequency Regular basis; before FOG/solids exceed 25%

25% Rule Applies

Permits & Enforcement

Permit Required Required

Permit Fee Contact Liberty Utilities for current fee schedule

Max Fine Per City of Glendale municipal code violation penalties

Complete FOG Regulations

Minimum Trap Size	Per Liberty Utilities Industrial Pretreatment Tariff; gravity interceptors for FSEs
Pumping Frequency	Regular basis; before FOG/solids exceed 25%
25% Rule	Yes — trap must be pumped when grease and solids reach 25% of capacity
Permit Required	Yes
Permit Fee	Contact Liberty Utilities for current fee schedule
Maximum Fine	Per City of Glendale municipal code violation penalties
Inspections	Routine FOG inspections by Liberty Utilities; may be scheduled or unannounced
Record Keeping	Required — maintain pumping logs and manifests on-site
Plumbing Code	International Plumbing Code (IPC)
Ordinance Ref.	Liberty Utilities Industrial Pretreatment Tariff (LPSCO-CP-01-004, Section 4); City of Glendale Code of Ordinances
Authority	Liberty Utilities (wastewater provider) / City of Glendale

Additional Notes

Liberty Utilities handles wastewater and FOG inspections for Glendale. Inspections include review of grease trap/interceptor maintenance records and pumping manifests. Inspections may be by appointment or unannounced, typically during non-peak hours.

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