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(A) General. Where required, an approved grease, fats and oils’ removal system shall be installed consisting of one or a combination of the following methods:
(1) Passive technology including:
(a) An approved in ground grease trap; and
(b) An approved grease interceptor.
(2) Active technology including:
(a) An approved grease recovery device; and
(b) An approved solids transfer/grease recovery device.
(B) Prohibited discharge.
(1) Waste that does not contain fat, grease or oils and that otherwise does not require treatment shall not discharge into the fats, grease and oil removal system.
(2) Wastewater from dishwasher machines or wastewater that otherwise exceeds 130°F shall not be introduced into any grease removal system.
(C) Food-waste grinders. Shall not discharge into the building drainage system through a grease interceptor, grease trap or grease recovery device.
(D) Passive system requirements.
(1) Grease traps. The size, type and location of each grease trap shall be approved by the plumbing official. Grease interceptors shall be sized and engineered based upon the anticipated load and/or conditions of actual use. Grease traps of precast or poured in place concrete shall be constructed of sound durable material, not subject to excessive corrosion or decay and shall be watertight and gastight.
(2) Grease interceptor. Grease interceptor shall be sized and engineered based upon the anticipated load and/or conditions of actual use. Grease interceptors shall receive grease laden waste discharge from the major point sources. A floor drain shall not be considered a major point source.
(3) Grease interceptor capacity. Grease interceptors shall have the grease retention capacity indicated in the table in § 54.06 for the flow-rates indicated.
(4) Rate of flow controls. Grease interceptors shall be equipped to control the rate of flow.
(Ord. passed 6-4-2001)