94-030 Ordinance - Laserfiche WebLink

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Material Arsenic Cadmium Chromium, Hexavalent Chromium, Trivalent Copper Cyanide, Amenable Cyanide, Total Iron Lead Mercury Nickel Phenols Selenium Silver Toxic Organics, Any One Solvent Toxic Organics, Total Zinc Concentration ( pm) 0.5 1.0 1 2 4 4 2 15 0.5 0.2 3 10 0.5 2 0.4 2.5 2 The Service Director may impose mass limitations on dischargers when deemed appropriate by the City. The Director may also convert Categorical Pretreatment Standards expressed in terms of mass to equivalent concentration limits when deemed appropriate. 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." Be and the same is hereby amended, and as amended shall read as follows: "917.02 LIMITATIONS ON WASTEWATER STRENGTH. (a) All dischargers shall comply with Section 911.12. (b) National Categorical Pretreatment Standards. National categorical pretreatment standards as promulgated by the U.S. Environmental Protection Agency (EPA) pursuant to the Act shall be met by all dischargers. An application for modification of the national categorical pretreatment standards may be considered for submittal to the Regional Administrator by the City when the City's wastewater treatment system achieves consistent removal of the pollutants as defined by 40 CFR 403.7. (c) State Requirements. State requirements and limitations on discharges to the sewage disposal system shall be met by all dischargers which are subject to such standards in any instance in which they are more stringent than Federal requirements and limitations or those in this or any other applicable ordinance.