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Section 14-116 Grease, oil, and sand interceptors.
(a) Grease, oil, and sand interceptors shall be provided when, in the opinion of the utilities superintendent, based on sound engineering standards, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts or any flammable wastes, sand, or other harmful ingredients, except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the utilities superintendent and shall be located so as to be readily and easily accessible for cleaning and inspection. All interceptors shall be supplied and properly maintained continuously in satisfactory and effective operation by the owner at the owner's expense. (b) All eating and quick food establishments not now existing shall provide a grease interceptor of one thousand (1,000) gallons capacity or larger between the kitchen and sewer tap. The sewer line from restrooms shall not be tied to the grease interceptor. Grease interceptors shall be installed with an access manhole brought up to or slightly above grade for easy cleaning. Where unusual conditions which make the provisions of this subsection prohibitive or not required, an alternative system approved by the utilities superintendent can be utilized provided it removes grease to levels below those fixed in this chapter. (c) All existing eating and quick food establishments presently operating without a grease interceptor shall be required to install one whenever it is deemed necessary by the utilities superintendent, upon recommendation by the superintendent of the sewer department, to prevent grease from entering public sewers. (d) Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight and equipped with easily removable covers which, bolted in place, shall be gastight and watertight, wherever desirable. (e) When installed, all grease, oil and sand interceptors shall be maintained at the owner's expense, in continuously efficient operation at all times. All interceptors shall be pumped and cleaned at least every six (6) months or more often if deemed necessary by the utilities superintendent. An inspection of existing conditions may be made by authorized city personnel at any time it appears that there may be a problem. (Code 1958, 19-60; Ord. of 5-22-95(1), IX)
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