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Proposed changes to Section 201.65 Section 201.65. - Prohibited discharge standards. (A) General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater that causes pass through or interference. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements. (B) Specific prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater: (1) Pollutants that create a fire or explosive hazard in the POTW, including, but not limited to, wastestreams with a closed -cup flashpoint of less than 140. F° (60° C) using the test methods specified in 40 CFR 261.21; (2) Wastewater having a pH less than 5.5 or more than 9.5, or otherwise causing corrosive structural damage to the POTW or equipment; (3) Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference; (4) Pollutants, including oxygen -demanding pollutants (B.O.D., etc.), released in a discharge at a flow rate and/or pollutant concentration that, either singly or by interaction with other pollutants, will cause interference with the POTW; (5) Wastewater having a temperature greater than 140°F (60° C), or that will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction to the treatment plant to exceed 104° F (40°C); (6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through; (7) Pollutantswhich result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; (8) Trucked or hauled pollutants, except at discharge points designated by the county administrator in accordance with Section 201.72 of this ordinance; (9) Noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life, or to prevent entry into sewers for maintenance or repair; (10) Wastewater which imparts color that cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant's effluent, thereby violating the county's NPDES permit; (11) Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;. (12) Sludges, screenings, or other residues from the pretreatment of industrial waste, unless permitted to do so; (13) Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail a toxicity test; 67