A. Grease, oil, and sand interceptors shall be provided when, in the opinion of the director of public works, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand and other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the director of public works, and shall be located as to be readily and easily accessible for cleaning and inspection. All interceptors are large devices and shall be exterior, in ground installations, provided that as to dischargers at existing locations as of the effective date of this chapter, where it is physically impossible to locate an interceptor at an exterior, in ground location, the director of public works may grant an exception allowing the interceptor to be placed in an approved interior location.
B. Grease, oil, and sand interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight and equipped with easily removable covers which when bolted in place shall be gastight and watertight.
C. Where installed, all grease, oil, and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times. It is specifically prohibited to maintain interceptors by bacteriological, chemical, or enzymatic addition or treatment.
D. Wastewater discharge permits may be issued to users of grease, oil, and sand interceptors. Permits shall establish minimum requirements for the design, operation, maintenance, and performance of the equipment. Permits may include other information as described in this chapter.
E. The discharge of waste to a grease, oil, and sand interceptor is subject to all sections of this chapter.
F. Purchase and installation of the interceptor shall be at the user's expense. No exceptions shall be made to the requirements of this section due to expense, size of the installation, or difficulties in locating the interceptor within the site boundary. (Ord. 2014-003, 7-22-2014)