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inspection and/or sampling or at inten-als specified in the permit, whichever is more <br /> frequent. Maintenance shall be performed at].east every fourteen (14) days. <br /> (g) Maintenance process shall include the following minimum services: <br /> (1) Complete removal of all grease 'interceptor or trap contents rather than <br /> skimming the top grease layer, <br /> (22) '1 1 horough cleaning of the grease interceptor or trap to remove grease <br /> and scum from inner walls and baffles, <br /> (3) Filling cleaned interceptor or trap with cold potable water, and <br /> (4) Completed waste hauler's section of the grease disposal manifest form <br /> and delivery to waste disposal site along with the grease interceptor or trap waste. <br /> (5) Top skimming, decanting or back flushing of the grease *interceptor or <br /> trap or its contents for the purpose of reducing the volume of waste to be hauled <br /> is prohibited. Vehicles capable of separating water from grease shall not <br /> discharge separated water into the grease trap or into the wastewater collection <br /> systcm. <br /> (h) Maintenance Modifications, Food service facilities which operate <br /> infrequently or only for special events may request a modification to the <br /> maintenance schedule specified above. The Waste Water Treatment Plant Chief <br /> Operator may authorize a inaintenance, frequency related to the operation of the <br /> food service facility. The user shall, submit a request for a modified maintenance <br /> schedule which includes all details of operation for the director to review. <br /> (i) Disposal. The user shall be responsible for the proper removal and disposal <br /> of the grease interceptor or trap waste. All waste removed from each grease <br /> interceptor or trap must be disposed of properly at an appropriate facility designed <br /> to receive grease interceptor or trap waste. No grease 'interceptor or trap waste shall <br /> be discharged into any city of Elk River sanitary or storm sewer systern. <br /> I <br /> (j) Maintenance Log. "I'lic user shall be responsible for retaining records of <br /> the maintenance Of grC-,ISC interceptors and traps including manifests, permits, permit <br /> applications, correspondence, sampling data and any other documentation that may <br /> be requested by the city of Elk River. This log shall include the dates of service, <br /> volume of waste removed, waste hauler, and disposal site of waste. These records <br /> shall be kept on-site at the location of the grease interceptor Or trap for a period of <br /> three (3) years and are subject to review Without prior notification. <br /> (k) Submittal of Records. Elach user shall submit all cleaning and maintenance <br /> records to the W `FP Chief Operator. 'rhe maintenance records shall include the <br /> following info')rtnation: <br /> (1) Facility name, address, contact person, and phone number <br /> 5 <br />