For the purpose of this subchapter, the following definition shall apply unless the context clearly indicates or requires a different meaning.
GREASE TRAP SLUDGE. The solid, lighter-than-water fraction of wastewaters from the handling, processing, preparation, cooking or consumption of food that are discharged to a pretreatment unit or device commonly referred to as a grease trap. The principal components of grease trap sludge are fats, oils and greases.
(2000 Code, § 5.24.010)