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SECTION 2 - GENERAL REQUIREMENTS <br /> 2.1 Prohibited Discharge Standards <br /> A. General Prohibitions: No user shall introduce or cause to be introduced into the <br /> POTW any pollutant or wastewater which causes pass through or interference. <br /> These general prohibitions apply to all users of the POTW whether or not they are <br /> subject to categorical pretreatment standards or any other National, State, or local <br /> pretreatment standards or requirements. <br /> B. Specific Prohibitions: No user shall introduce or cause to be introduced into the <br /> POTW the following pollutants, substances, or wastewater: <br /> (1) Pollutants which create a fire or explosive hazard in the POTW, including, <br /> but not limited to, wastestreams with a closed-cup flashpoint of less than <br /> 140°F (60°C) using the test methods specified in 40 CFR 261.21; <br /> (2) Wastewater having a pH less than 5.0 or more than 11.0 (unless in <br /> compliance with Section 2.5 of this Ordinance) or otherwise causing <br /> corrosive structural damage to the POTW or equipment; <br /> (3) Solid or viscous substances in amounts which will cause obstruction of the <br /> flow in the POTW resulting in interference but in no case solids greater <br /> than one quarter inch(1/4"); <br /> (4) Pollutants, including oxygen-demanding pollutants (BOD, COD, etc.), <br /> released in a discharge at a flow rate and/or pollutant concentration which, <br /> either singly or by interaction with other pollutants, will cause interference <br /> with the POTW; <br /> (5) Wastewater having a temperature which will inhibit biological activity in <br /> the treatment plant resulting in interference, but in no case wastewater <br /> which causes the temperature at the introduction into the treatment plant to <br /> exceed 104°F (40°C) unless the Approval Authority, upon the request of <br /> the POTW, approves alternate temperature limits; <br /> (6) Petroleum oil, non-biodegradable cutting oil, or products of mineral oil <br /> origin, in amounts that will cause interference or pass through; <br /> (7) Pollutants which result in the presence of toxic gases, vapors, or fumes <br /> within the POTW in a quantity that may cause acute worker health and <br /> safety problems; <br /> 14 <br />