(A) The user of the premises or business where such interceptor is located shall obtain from the city a maintenance card which shall be posted in a conspicuous manner showing proof of regular maintenance. Such card shall be obtained annually and shall be presented upon request. All records pertaining to the maintenance of an interceptor shall be retained by the user for a period of not less than three years and available to the city upon request.
(B) No user shall allow wastewater discharge concentration from subject grease interceptor to exceed 50 milligrams per liter, as identified by method EPA Method 1664A (Hexane Extraction Method). All such grease interceptors shall be serviced and emptied of accumulated waste content as required in order to maintain minimum design capability or effective volume of the grease interceptor, but not less often than every 30 days. Users who are required to pass water through a grease interceptor shall:
(1) Remove any accumulated grease cap and sludge pocket as required, but at intervals of not longer than 30 days at the users expense. An exemption may be granted to the 30-day minimum requirement if the user can establish that such maintenance schedule is not necessary.
(2) Keep the interceptors free of inorganic solid materials such as grit, rocks, gravel, sand, eating utensils, cigarettes, shells, towels, rags, etc., which could settle into this pocket and thereby reduce the effective volume of the grease interceptor.
(C) If any skimmed or pumped wastes or other materials removed from the grease interceptor are treated in any fashion onsite and reintroduced back into the grease interceptor as an activity of and after said onsite treatment the user shall be responsible for the attainment of established grease numerical limit consistent with and contained in this chapter on all discharges of wastewater from said grease interceptor into the city's sanitary sewer collection and treatment system.
(Ord. 8784, passed 7-8-03) Penalty, see § 1311.99