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A. Pollutants which create a fire or explosion hazard in the municipal <br />wastewater collection and POTW, including, but not limited to, waste <br />streams with a closed -cup flash point of less than 140 degrees Fahrenheit <br />( 60 degrees Centigrade ) using the test methods specified in 40 CFR <br />261.21. <br />B. Any wastewater having a pH less than 5.5 or more than 9.5 or otherwise <br />causing corrosive structural damage to the POTW or equipment, or <br />endangering City personnel. <br />C. Solid or viscous substances in amounts which will cause obstruction of <br />flow in the POTW resulting in interference, or other interference with <br />proper operation of the sewage works, such as ashes, cinders, sand, mud, <br />straw, shavings, metal, glass, rags, feathers, fish scales, tar, plastics, <br />wood, whole blood, paunch manure, hair, fleshing, entrails, lime slurry, <br />lime residues, slops, chemical residues, paint residues, or bulk solids. <br />D. Any wastewater containing pollutants, including oxygen demanding <br />pollutants ( BOD ), released in a discharge at a flow rate and/ or pollutant <br />concentration which either singularly or by interaction with other <br />pollutants, will cause interference with either the POTW; or any <br />wastewater treatment or sludge process, or will constitute a hazard to <br />humans or animals. <br />E. Any wastewater having a temperature greater than 150 degrees <br />Fahrenheit ( 65 degrees Centigrade ) or which will inhibit biological <br />activity in the treatment plant resulting in interference, but in no case <br />wastewater which causes the temperature at the introduction into the <br />treatment plant to exceed 104 degrees Fahrenheit ( 40 degrees <br />Centigrade ). <br />F. Petroleum oil, non -biodegradable cutting oil, or products of mineral oil <br />origin, in amounts that will cause interference or pass through. <br />G. Any pollutants which result in the presence of toxic gases, vapors, or <br />fumes within the POTW in a quantity that may cause acute worker health <br />and safety problem. <br />H. No true -ked- OF hauled pollutants shall he d-i-se-harged except at dis6haFged <br />reams designated by the POTW. Moved to 74-64B <br />Any noxious or malodorous liquids, gases, solids, or other wastewater <br />which singly or by interaction with other wastes, are sufficient to create a <br />public nuisance, a hazard to life, or to prevent entry into the sewers for <br />maintenance and repairs. <br />13 <br />