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(a) Grease, oil and sand interceptors shall be installed by the User when, in the <br />opinion of the City, they are necessary for the proper handling of liquid wastes <br />containing grease, flammable waste, sand or other harmful materials, except that <br />such interceptors shall not be required for dwelling units. Toilets, urinals, wash <br />basins, showers and other fixtures containina fecal matter shall not flow throuah <br />the interceptor. <br />(b) All interceptors shall be of a type and capacity approved by the <br />Manager. The interceptor shall be installed in conformity with approved plans <br />and in accordance with all City Codes and regulations. <br />(c) The interceptor shall be installed and connected so as to be readily <br />accessible for inspection, cleaning and removal of grease. <br />(d) The interceptor shall be maintained in efficient operating condition by <br />periodic removal of accumulated grease and solids. Unless otherwise approved <br />by the Manager, grease interceptors must be pumped in full when the total <br />accumulation of surface grease and settled solids reaches twenty-five percent= <br />(25%) of the grease interceptor's overall liquid depth. All accumulated grease <br />and solid materials shall be removed by a certified waste hauler licensed by the <br />State of California. No accumulated FOG shall be introduced into any drainage <br />piping or public or private sewer. The introduction of emulsifying agents such <br />as chemicals, solvents or enzymes which will cause pass through of grease is <br />strictly prohibited. Bacterial agents used to reduce FOG may be used in addition <br />to regular maintenance, but shall not be a consideration in determining grease <br />interceptor sizing or maintenance frequency. Wastewater in excess of one <br />hundred and forty degrees Fahrenheit (140°F) shall not be discharged to the <br />grease interceptor for any duration. Failure to clean or maintain the interceptor <br />shall be a violation and subiect to enforcement action. <br />(e) The User shall develop and maintain a record of periodic maintenance <br />and cleaning / pumping of the interceptor. Records shall be retained for a period <br />of not less than three (3) years. <br />(f) All fixtures, equipment and drain lines located in a Food Service <br />Establishment which may contain fats, oil and grease (FOG) or other <br />objectionable materials shall be connected to an appropriately sized grease <br />interceptor. The following types of equipment or fixtures identified as a potential <br />source of FOG include, but are not limited to: pre -rinse and/or pre -wash sinks or <br />sinks in dishwashing areas; two or three compartment sinks; wok stoves; soup <br />kettles; self-cleaning stove ventilation/exhaust hood; kitchen floor drains; kitchen <br />floor trench; kitchen floor sinks; mop sinks; and food prep sinks. No sanitizing <br />dishwashers are to be connected to drainage pipes conveying wastewater to a <br />grease interceptor unless such connections are approved by the Manager. <br />18 <br />