§ 52.053 HIGH STRENGTH FLOW OR TOXIC DISCHARGES SUBJECT TO REVIEW AND APPROVAL.

   (A)   The admission into the public sewers of any of the following waters or wastes shall be subject to the review and approval of the city:

      (1)   Having a five-day biochemical oxygen demand greater than 250 parts per million by weight;

      (2)   Containing any quantity of substances having the characteristics described in this chapter;

      (3)   Having an average daily flow greater than 2% of the average daily sewage flow of the city; or

      (4)   In violation of the standards for pretreatment provided in 40 C.F.R. 403, June 26, 1978 and any amendments thereto.

   (B)   The city may elect to:

      (1)   Reject the wastes;

      (2)   Require pretreatment to an acceptable condition for discharge to the public sewer;

      (3)   Require control over the quantities and rates of discharge; and/or

      (4)   Require payment to cover the added costs of handling and treating the wastes not covered by existing taxes or sewer charges, under the provisions of §§ 50.60 through 50.69.

   (C)   The toxic pollutants subject to prohibition or regulation under this chapter shall include, but need not be limited to, the list of toxic pollutants or combination of pollutants established by § 307(a) of the Clean Water Act of 1977, and subsequent amendments.

      (1)   Effluent standards or prohibitions for discharge to the sanitary sewer shall also conform to the requirements of § 307(a) and associated regulations.

      (2)   Pretreatment standards for those pollutants which are determined not to be susceptible to treatment by the treatment works or which would interfere with the operation of such works shall conform to the requirements and associated regulations of § 307(b) of the Clean Water Act of 1988 and subsequent amendments. The primary source for such regulations shall be 40 C.F.R. 403, General Pretreatment Regulations for Existing and New Sources of Pollution.

   (D)   Where necessary in the opinion of the approving authority, the owner shall provide, at the owner’s expense, such preliminary treatment as may be necessary to reduce the biochemical oxygen demand to 250 parts per million and the suspended solids to 300 parts per million by weight, or reduce objectionable characteristics or constituents to within the maximum limits for which this chapter provides, or control the quantities and rates of discharge of such waters or wastes. If the city permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the approving authority and the Illinois EPA and subject to the requirements of all applicable codes, ordinances and laws.

(Prior Code, § 18-9-4)