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-CODE OF ORDINANCES <br /> Chapter 78- UTILITIES <br /> ARTICLE III. -SEWERS AND SEWAGE DISPOSAL <br /> DIVISION 2. -SEWER USE AND DISCHARGE REQUIREMENTS <br /> Subdivision III. - Discharge Restrictions <br /> (11) Water or wastes containing substances which are not amenable to treatment or reduction by the <br /> sewage treatment process employees, or are amenable to treatment only to such a degree that <br /> the sewage treatment plant effluent cannot meet the requirements of the NPDES permit or <br /> requirements of other governmental agencies having jurisdiction over discharge from the <br /> sewage treatment plant. <br /> (Code 1982, § 1300.02(8)) <br /> Sec. 78-155. -Acceptance of restricted wastes. <br /> (a) If any water or wastes are discharged, or are proposed to be discharged, directly or indirectly, to the <br /> public sewers, which water or wastes do not meet the standards set forth in or promulgated under <br /> this subdivision, or which, in the judgment of the city, may have a deleterious effect upon the <br /> wastewater treatment works, processes, or equipment or receiving waters, or which otherwise create <br /> a hazard to life or constitute a public nuisance, the city may take any or all of the following steps: <br /> (1) Refuse to accept the discharges; <br /> (2) Require control over the quantities and rates of discharge; <br /> (3) Require pretreatment to an acceptable condition for the discharge to the public sewers, <br /> pursuant to section 307(b)of the Act and all addendums thereto; or <br /> (4) Require payment to cover the adequate cost of handling, treating and disposing of the wastes <br /> not covered by existing taxes or sewer service charges. <br /> (b) If the city permits the pretreatment or equalization of waste flows, the design and installation of the <br /> plant and equipment shall be made at the owner's expense, and shall be subject to the review and <br /> approval of the city pursuant to the requirements of the MPCA. <br /> (Code 1982, § 1300.02(9)) <br /> Sec. 78-156. - Grease, oil and sand interceptors. <br /> Grease, oil and sand interceptors or equalization tanks shall be provided and installed by the owner <br /> when, in the opinion of the city, they are necessary for the proper handling of liquid wastes containing <br /> floatable grease in excessive amounts as specified in section 78-154(2), any flammable wastes, as <br /> specified in section 78-153(1), sand, or other harmful ingredients; except that such interceptors shall not <br /> be required for private living quarters or dwelling units. All interceptors shall be of the type to be readily <br /> and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner shall <br /> be responsible for the proper removal and disposal of the captured materials by appropriate means, and <br /> shall maintain a record of dates and means of disposal, which are subject to review by the city. Any <br /> removal and hauling of the collected materials not performed by the owner's personnel must be <br /> performed by a currently licensed waste disposal firm. <br /> (Code 1982, § 1300.02(10)) <br /> Sec. 78-157. - Preliminary treatment or flow-equalizing facilities. <br /> Where preliminary treatment facilities, flow-equalizing facilities or interceptors are provided for any <br /> water or wastes, they shall be effectively operated and maintained continuously in satisfactory and <br /> Elk River, Minnesota, Code of Ordinances Page 19 <br />