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�' � EXHIBIT A <br /> (2) No person shall discharge any other holding tank wastewater into a <br /> City of Decatur sewer system. <br /> 18. GREASE, OIL AND SAND TRAPS. All establishments involved in <br /> the preparation of food for commercial purposes shall provide grease <br /> interceptors or traps. <br /> (a) Grease, oil and sand interceptors or traps shall be provided at the <br /> cost of the owner when required by the City for the proper handling of liquid <br /> wastes containing grease in excessive amounts, sand and other harmful <br /> ingredients, except that such interceptors or traps will not be required for dwelling <br /> units. <br /> (b) All interceptors or traps shall be of a type and capacity approved by <br /> the City Construction Inspection Division and the Illinois Department of Public <br /> Health, all such devices shall be located so as to be readily and easily accessible <br /> for cleaning and inspection. They shall be constructed of impervious materials <br /> capable of withstanding abrupt and extreme changes in temperatures and shall <br /> be of substantial construction, gas tight, watertight, and equipped with easily <br /> removable covers. <br /> (c) All grease, oil and sand interceptors or traps shall be serviced and <br /> emptied at the cost of the owner on a continuous basis to maintain their minimum <br /> design capacity and the continuous efficient operation at all times. No waste <br /> removed from the interceptors or traps shall be reintroduced into the sanitary <br /> sewer or back into the interceptor or trap, which will cause the interceptor's or <br />