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(1) Having a temperature higher than 140° F at the point of discharge or raise
<br /> the POTW influent temperature above 104° F or that inhibits biological activity in the POTW
<br /> resulting in interference.
<br /> (2) Any water or waste which contains more than one hundred (100) parts per
<br /> million (100 ppm), by weight, of oil or grease of petroleum origin; which contains more than 100
<br /> ppm, by weight, of fat, oil or grease of animal or vegetable origin; or which contains grease or
<br /> oil or other substances that will solidify or become discernibly viscous at temperatures between
<br /> 32° to 140° F.
<br /> (3) Containing Petroleum oil, non - biodegradable cutting oil, or products of
<br /> mineral oil origin in amounts that will, either singularly or in conjunction with other discharges,
<br /> cause interference or pass through.
<br /> (4) Having a pl-I lower than 6.0 or higher than 12.5, or having a pH which will
<br /> cause damage to the collection system or interfere with the POTW treatment processes.
<br /> Section 3 -14 -310. Specific Prohibitions on Discharges.
<br /> A User may not discharge the following substances to the sanitary sewer system:
<br /> (a) Fire or Explosion - Any pollutant with a closed cup flashpoint of less than 140 °F
<br /> (60 °C) . Any liquids, solids or gases which by reason of their nature or quantity are, or may be
<br /> sufficient either alone or by interaction with other substances to cause a fire or explosion or to be
<br /> injurious in any other way to the POTW. At no time, shall two (2) successive readings on an
<br /> explosion hazard meter, at the point of discharge into the sanitary sewer (or at any point in the
<br /> system) be more than five percent (5 %) or any single reading over ten percent (10 %) of the
<br /> Lower Explosive Limit (LEL) of the meter. Prohibited materials include, but are not limited to,
<br /> gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes,
<br /> peroxides, chlorates, perchlorates, bromates, carbides, hydrides and sulfides.
<br /> (b) Obstruction of Flow - Solid or viscous substances which may cause obstruction of
<br /> the flow in a sewer or other interference with the operation of the wastewater treatment facilities
<br /> such as, but not limited to: grease, garbage with particles greater than one -half (1/2) inch in any
<br /> dimension, animal guts or tissues, paunch manure, bones, hair hides or fleshings, entrails, whole
<br /> blood, feathers, ashes, cinders, wax, sand, spent lime, stone or marble dust, metal, glass, straw,
<br /> shavings, grass clippings, rags, spent grains, spent hops, waste paper, wood, plastics, tar, asphalt
<br /> residues, residuals from refining, or processing of fuel or lubrication oil, mud or glass grinding or
<br /> polishing wastes.
<br /> (c) Toxic Pollutants - Any wastewater containing toxic pollutants in sufficient
<br /> quantity, either singly or by interaction with other pollutants, to injure or interfere with any
<br /> wastewater treatment process, constitute a hazard to humans or animals, create a toxic effect in
<br /> the receiving waters of the POTW, or to exceed the limitation set forth in a Categorical
<br /> Pretreatment Standard.
<br /> (d) Noxious or Malodorous Substances - Any harmful or offensive gases or solids
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