98-84 New Chapt 913 Streets - water into sewer system

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1) Any liquid or vapor having a temperature higher than one hundred fifty (150°F) (65°C), or causing, individually or in combination with other wastewater, the influent at the wastewater treatment plant to have a temperature exceeding one hundred four (104°F)(40°C) 2) Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of ~tw~nty-five (25) mg/1 or containing substances which may solidify or become viscous at temperatures between thirty-two (32) F and one-hundred fifty (150) F (0 and 65°C). 3) Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not. 4) Any waters or wastes containing iron, chromium, copper, zinc and similar objectionable or toxic substances; or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the composite wastewater at the wastewater treatment works exceeds reasonable limits. 5) Any waters or wastes containing phenols or other taste-or-ordor producing substances, in such concentrations exceeding limits after treatment of the composite wastewater, to meet the require- ments of the State, Federal, or other public agencies of juris- diction for such discharge to the receiving waters. 6) Any radioactive wastes or isotopes of such half-life or concen- tration as may exceed limits in compliance with applicable State or Federal regulations. 7) Any waters or wastes having a pH in excess of t0.0. 8) Materials which exert or cause: A) Unusual concentration of inert suspended solids such as but not limited to, Fullers earth, lime slurries, and lime residues, or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate). B) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions). C) Unusual BOD, chemical oxygen demand, or chlorine require- ments in such quantities as to constitute a significant load on the wastewater treatment works. D) Unusual volume or concentration of wastes constituting "sludge" as defined herein. E) Any unpolluted water including, but not limited to, cooling water, storm water, or ground water. f) Other limitations on wastewater strength are: 1) Federal Pretreatment Standards. Federal pretreatment standards promulgated by the U. S. Environmental Protection Agency (EPA) pursuant to the Act shall be met by all users which are subject to such standards in any instance where they are more stringent than the limitations in this ordinance unless the City Engineer has applied for, and obtained from the OEPA approval to modify the specific limits in the federal pretreatment standards. When requested, an application for modification of the federal pre- treatment standards will be considered for submittal by the City Engineer when the City's wastewater treatment system achieves consistent removal of the pollutants. "Consistent removal" shall mean reduction in the amount of pollutant or alteration of the nature of a pollutant which is in the in- fluent to the wastewater treatment system to a less toxic or harmless state by the time it is discharged in the efflu- ent. The reduction or alteration must be achieved in ninety- five percent (95%) of the samples taken when measured accord- ing to the procedures set forth in 40 CFR Section 403.7(c)(2) ~,~o~f the "General Pretreatment Regulations for Existing & New Sources of Pollution." f_gO_