Unless the context specifically indicates otherwise, the following definitions represent the meanings of terms as they are used in this title:
1. "Best Management Practices ("BMPs")" - A schedule of activities, prohibition of practices, maintenance procedures, and other management practices to prevent or reduce the introduction of FOG to the sanitary sewer system.
2. "Fats, Oils, and Grease ("FOG")" - Any substance, such as vegetable, animal or other product that is used in, or is a by product of, the cooking or food preparation process, and that turns or may turn viscous or may solidify with a change in temperature or other conditions. Grease may originate from, but not limited to, discharges from scullery sinks, pot and pan sinks, dishwashing machines, soup kettles and floor drains located in areas where grease-containing materials may exist.
3. "Food Service Establishment ("FSE")" - Food service facility licensed by the City of Denison that prepares and/or provides food for consumption.
A. "Class 1 FSE" - Any establishment where a grill, deep fry unit, broaster, wok or similar device is located and used to prepare food. All "Class 1 FSE's" are required to install an approved grease interceptor.
B. "Class 2 FSE" - Any establishment using only a heat-producing device, such as a microwave, conventional oven, toaster oven, hot dog rotisserie, coffee maker, etc. to prepare food. Any food establishment that prepares and/or serves meals 2 or fewer times per week or satellite food service establishments where primary food preparation is conducted offsite or initial preparation of foods does not occur. A satellite food service facility is one that maintains thoroughly cooked food hot. All "Class 2 FSE's" facilities must install an approved grease trap.
4. "Food Waste Disposal Unit" - A device that shreds or grinds up solid or semisolid waste material into smaller portions for disposing it in the sanitary sewer. These devices are also referred to as grinders, garbage grinders and garbage disposals.
5. "Grease Interceptor" - A vault that is located on the exterior of the building which has a minimum of two compartments. The capacity of the interceptor provides adequate residence time so that the wastewater has time to cool, allowing grease to congeal and rise to the surface where it accumulates until the interceptor is cleaned.
6. "Grease Interceptor Waste" - Any grease, food particles, organic or inorganic solid or semisolid waste collected and intercepted by a grease interceptor usually in layers of floatable, suspended and settleable substances, which are ultimately removed from a grease interceptor for proper disposal.
7. "Grease Trap" - A device located in the facility. It is smaller than a grease interceptor, which is required to have an approved designed.
8. "Grease Removal Device" - An interceptor, trap or other mechanical device designed, constructed, and intended to remove, hold, or otherwise prevent the passage of grease to the sanitary sewer.
9. "Sanitary Sewer Overflow" (SSO) - Any unplanned discharge from the separate sanitary sewer system.
10. "Twenty-five percent rule" - A requirement of when grease interceptors shall be fully pumped out and cleaned. This rule/requires that when the combined FOG (including floating solids) and the settled solids accumulation reaches 25% of the total designed hydraulic depth of the grease interceptor, the grease interceptors shall be fully pumped out and cleaned. This requirement will help to ensure that the minimum hydraulic detention time and the required available hydraulic volume are maintained to effectively intercept and retain FOG in the interceptor.
(Ch. 96 - Ord. 1499 - May 19 Supp.)