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§ 51.33 DISCHARGE CONTROL OPTIONS OF CITY.
   (A)   If any waters or wastes are discharged or are proposed to be discharged to the public sewers which contain substances or possess the characteristics enumerated in §§ 51.31 and 51.32; which in the judgment of the city will have a deleterious effect upon the treatment facilities, processes, or equipment, receiving waters, and/or soil, vegetation, and ground water; or which otherwise create a hazard to life or constitute a public nuisance, the city may:
      (1)   Reject the wastes;
      (2)   Require pretreatment to an acceptable condition for discharge to the public sewers, pursuant to Section 307(b) of the Act (33 USC 1317(b)) and all addenda thereof and as may be amended from time to time;
      (3)   Require control over the quantities and rates of discharge; and/or
      (4)   Require payment to cover the added costs of handling, treating, and disposing of wastes not covered by existing taxes or sewer charges.
   (B)   If the city permits the pretreatment or equalization of waste flows, the design, installation, and maintenance of the facilities and equipment shall be made at the owner’s expense and shall be subject to the review and approval of the city pursuant to the requirements of the MPCA.
(Ord. 89, passed 11-22-94)
§ 51.34 DILUTION IN LIEU OF TREATMENT PROHIBITED.
   No user shall increase the use of process water or in any manner attempt to or dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in §§ 51.31 and 51.32 or contained in the National Categorical Pretreatment standards or any state requirement.
(Ord. 89, passed 11-22-94) Penalty, see § 51.99
§ 51.35 PRETREATMENT FLOW-EQUALIZING FACILITIES.
   Where pretreatment or flow equalizing facilities are provided or required for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by and at the expense of the owner.
(Ord. 89, passed 11-22-94) Penalty, see § 51.99
§ 51.36 GREASE, OIL, AND SAND INTERCEPTORS.
   Grease, oil, and sand interceptors shall be provided when, in the opinion of the Wastewater System Operator, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts, as specified in § 51.32(B), any flammable wastes as specified in § 51.31(A), 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 the type to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner shall be responsible for the proper removal and disposal of the captured materials by appropriate means, and shall maintain a record of dates and means of disposal which are subject to review by the Wastewater System Operator. Any removal and hauling of the collected materials not performed by the owner’s personnel must be performed by a currently licensed waste disposal firm.
(Ord. 89, passed 11-22-94) Penalty, see § 51.99
§ 51.37 CONTROL MANHOLES.
   Where required by the city, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable structure, or control manhole, with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling, and measurement of wastes. Such structure shall be accessible and safely located, and shall be constructed in accordance with plans approved by the city. The structure shall be installed by the owner at his or her expense and shall be maintained by the owner so as to be safe and accessible at all times.
(Ord. 89, passed 11-22-94) Penalty, see § 51.99
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