84-040 Ordinance - Laserfiche WebLink

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? „?,' , ? • ? `?? `?..,..- ? ? contained in the Federal Pretreatment standards or contained in any State requirements. This shall not prohibit the use of equalization tanks utilized to regulate flows. (f) Supplementary Limitations. No Discharger shall discharge wastewater containing concentrations of the following enumerated mate- rials, exceeding the following values: Material Concentration (ppm) ar s en ic * c adm i um 4 copper 1 cyanide 1 total cyanide * free cyanide * iron 15 lead 0.5 mercury * nickel * nickel chromium 3 phenols 10 silver * total cadmium * trivalent chromium 1 hexavalent chromium 2 z inc 2 * Values may be established once sufficient data is available. Mass limitations on Dischargers are intended to prevent the use of dilution to meet the Pretreatment Standards or Requirements of the Codified Ordinances, or in other cases where the imposition of mass limitations is deemed appropriate by the City. No statement contained in the Codified OrBinances shall be construed as prohibiting any special agreement or arrangement between the City and any person whereby an industrial waste of unusual strength or character may be admitted to the sewage disposal works, either before or after pretreatment, provided there is no impairment of the functioning of the sewage disposal works by reason of the admission of such wastes and no extra costs are incurred by the City without recompense by such person. Payment for extra strength wastewater or wastewater of unusual character shall be in proportion to cost and consistent with the user charge system, Chapter 915 of the Codified Ordinances. 917.03 ACCIDENTAL DISCHARGES. Each Discharger shall provide protection from accidental discharge of prohibited or regulated materials or substances established by the Codified Ordinances. When there is a substantial danger to the public health or welfare to the environment or of interfering with the sewage -2-