Amend Chapter 17, Article 2, Code Relating to pretreatment requirements for the use of the public sewers

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(h) No statement contained in this article shall be construed as preventing any special agreement or arrangement between the City and any industrial concern whereby an industrial waste for unusual strength or character may be accepted by the City for treatment, subject to payment therefore, by the industrial concern, at such rates as are compatible with the rate ordinance; provided, however, that no special agreement or arrangement may be made with the City which results in the violation of National Pretreatment standards or local limits. (Ord. No. 7942-88, § 1; Ord. No. 8409-93, § 3; Ord. No. 8573-95, § 1) Sec.17-10. Pretreatment of industrial wastes. Pretreatment of industrial wastes from major contributing industries prior to discharge to the treatment works is required and is subject to the Rules and Regulations adopted by the EPA (40 CFR Part 403), and "Guidelines Establishing Test Procedures for Analysis of Pollutants" (40 CFR Part 136), in addition to any more stringent requirements established by the City and subsequent State or Federal Guidelines and Rules and Regulations. (a) Limitations on wastewater strength: (1) The National Categorical Pretreatment Standards, located in 40 CFR Chapter I, Subchapter N, Parts'405-471, are hereby adopted and incorporated by reference into this Code and include amendments to those standards that occur hereafter as the same are published in the CFR with effective dates as fixed therein. An application for modification of the National Categorical Pretreatment Standards may be considered by the Board of Public Works when the wastewater treatment plant achieves consistent removal of the pollutants described herein. (2) State and local requirements and limitations on discharges shall be met by all discharges when such requirements and limitations are more stringent than federal requirements and limitations. (3) No discharger shall use potable water to dilute a discharge as a substitute for adequate treatment of prohibited substances to achieve compliance with the standards set forth in this division. (4) Under no circumstances shall a discharger release water or waste containing concentrations of the following substances in amounts exceeding the stated values: Parameter 1-Day Maximum Total Arsenic 0.9 A:4 Total Cadmium 0.5 Total Chromium 7.5 3:9 6