Nonresidential facilities that could potentially discharge fats, grease, petroleum-based oils, and solids into the sanitary sewer system (typically restaurants, facilities that prepare/serve food/beverages, hotels, nursing homes, car washes, vehicle repair shops, owners of private pump stations, etc.) are required to participate in the Oil & Grease Prevention Program. As part of the program, the facility must have a County-approved pollution pretreatment device (grease trap, grease interceptor, oil/water separator, sand trap, or fine particle strainer) to pretreat its wastewater, and the device must be properly maintained in accordance with program requirements. All nonresidential customers must submit an Oil & Grease Prevention Program Facility Information Survey once they start their wastewater service to see if they must comply with this program.
Grease traps/interceptors and oil/water separators must be completely pumped out and cleaned at least once every 90 days. In addition, grease traps must be inspected (and excessive solids, fats, grease, and oil removed) at least once every 7 days.
Find grease trap/interceptor design guidelines here. For more information about these guidelines, contact the Utilities Engineering Division at (407) 254-9900.
Interior grease traps are allowed by variance to the Building Code if:
- The facility does not grill or fry foods, or cook foods containing oil and grease, and
- Physical limitations prevent using an exterior grease interceptor.
To qualify, please submit a variance request to the Water Reclamation Division's Environmental Compliance Section that includes:
- A description of the physical limitations,
- Calculations by a registered engineer for the size of the interior grease trap,
- The manufacturer name and model number of the proposed interior grease trap, and
- A completed Orange County Oil & Grease Prevention Program Facility Information Survey.