(a) Grease and oil interceptors shall be required at all facilities which provide food service and/or preparation activities, including, but not limited to, full service restaurants, fast food establishments, delis, cafeterias (including church and school facilities where commercial equipment is installed and the square footage and/or frequency of use indicates more than occasional use), meat distributors, food processing facilities, grocery stores with food preparation/service areas, bakeries, caterers, and/or other similar types of operations.
(b) Grease and oil interceptors shall be provided as stipulated in subsection (a) above or when liquid wastes contain an excess of one hundred (100) mg/l of grease or contain substances which may solidify or become viscous at temperatures between thirty-two (32) degrees Fahrenheit or zero (0) degrees Centigrade and one hundred fifty (150) degrees Fahrenheit or sixty-five (65) degrees Centigrade, except that such interceptors shall not be required for single family or multifamily dwelling units unless problems occur at particular locations more than twice in twelve-month period.
(c) Any facility where a grease and oil interceptor is required must apply for a grease and oil interceptor permit from the division of water quality. The director, division of water quality, upon review of a permit application, may grant the permit, reject the permit, or grant the permit with the following conditions:
(1) Require the use of a grease and oil interceptor meeting specified performance standards;
(2) Require a specific schedule for cleaning the grease and oil interceptor;
(3) Require the applicant to exercise best management practices in its operation related to grease and oil handling as specified in the permit;
(4) Require any other reasonable conditions warranted by the circumstances of the particular facility applying for the permit.
(d) Grease and oil interceptors to be installed shall be in conformance with the most recent Lexington-Fayette Urban County Government Sanitary Sewer and Pumping Station Manual, the State Plumbing Code and the applicable Lexington-Fayette Urban County Government Standard Drawing. The required interceptor shall be designed according to the most stringent of the above current standards. A site map, design documents, and as-built drawings shall be submitted to the Lexington-Fayette Urban County Government Division of Water Quality. Approval of the interceptor shall be determined by the Division of Water Quality upon review of the proposed facility and sized according to the requirements of the Lexington-Fayette Urban County Government Sanitary Sewer and Pumping Station Manual. The interceptor shall be located so as to be readily and easily accessible for cleaning and inspection.
(e) Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperatures. They shall be of substantial construction, watertight and equipped with easily removable covers which, when bolted in place, shall be gastight and watertight. Each user shall provide protection against accidental discharge of grease and oil. Features which prevent accidental discharge of these materials shall be provided and maintained at the user's expense. Facilities and operating procedures to provide this protection shall be submitted to the division of water quality for review and approval prior to construction of the facility. Review and approval of such plans and operating procedures by the division of water quality shall not relieve the user of the responsibility to modify its facility as necessary to meet the requirements of this chapter.
(f) A food service and/or preparation facility which demonstrates that the discharge from its food service and/or preparation activities contains less than one hundred (100) mg/l of grease, may receive an exemption from minimum sizing requirements or installation and maintenance requirements. The sampling and testing to demonstrate the concentration of grease in the discharge must be conducted, at the facility's expense, by an independent testing organization and measured in accordance with the analytical test procedures established in 40 CFR Part 136 as amended from time to time.
(g) Grease and oil interceptors shall be cleaned on a regular basis which will ensure proper and efficient operation but not less than one (1) time within a six-month period or as provided in the facility's grease and oil interceptor permit. Approved internal or under-counter interceptors shall be cleaned at least once per week or as provided in the facility's special grease and oil interceptor permit. Cleaning shall consist of removal of the entire contents of the device, including grease cap and sludge pocket, and inspection of the empty device for defects and/or obstructions which would prevent proper function.
(h) Written records shall be maintained by the user indicating maintenance and cleaning of the grease interceptor. The record shall indicate: dates of maintenance; person performing the maintenance; estimated volume of grease removed; receipts or manifest from haulers; disposal locations; facility manager's verification. The records shall be retained for a period of three (3) years and shall be available at the facility along with a copy of the grease interceptor permit for inspection by the division of water quality.
(Ord. No. 126-83, § 1, 7-21-83; Ord. No. 164-84, § 1, 9-20-84; Ord. No. 148-2000, § 3, 6-1-00; Ord. No. 278-2001, §§ 1, 2, 11-8-01; Ord. No. 143-2009, § 13, 7-7-09)