Fats, Oils & Grease (FOG) Program Review – An Orange County Waste Discharge Requirement (WDR) Collection System Steering Committee Report

Collection Systems, Regulations, Technology and Innovation


A subcommittee of the Orange County Waste Discharge Requirements (WDR) Collection Systems Steering Committee (Committee) was formed to look at the current Fats, Oils and Grease (FOG) program being implemented in central and northern (Northern) Orange County.

The current FOG program is over ten years old and has continued to be improved over that time through knowledge and information gained by cities and wastewater agencies (collectively referred to as Agencies) through implementation of the program, attendance at conferences, seminars, workshops and Permittee meetings.

An important goal of the committee was to look at how Agencies are implementing their FOG program, specifically, the requirements related to the use of grease control devices by food service establishments (FSEs). The Committee was interested in knowing whether there had been changes over time in the type of devices specified and quantifying the annual reduction in total and grease related sanitary sewer overflows (SSOs).

To answer these questions the Committee reviewed existing ordinances and literature, conducted Permittee surveys and gathered information from Committee member experience.

The results of these efforts culminated in the preparation of this report. The report begins with a history of the WDR program (Section II) and ends with an assessment of the number of SSOs occurring since the program’s inception (Section VII). Other sections provide information on the various grease control devices (GCD) used and what factors to consider when selecting an appropriate device. The report ends with a conclusion and recommendation section that provides a summary of the information presented and factors that may be considered when selecting a GCD.

View full report.