§ 25-253. Prohibited substances, wastes or materials.  


Latest version.
  • (a)

    General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which 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 federal, 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)

    Gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquids, solids or gases, or any other pollutants which create a fire or explosive hazard in the POTW including, but not limited to, wastestreams with a closed-up flash point of less than one hundred forty (140) degrees F (60 degrees C) using the test methods specified in 40 CFR 261.21.

    (2)

    Wastewater having a pH lower than 5.0 or higher than 11.5 or otherwise causing corrosive structural damage to sewerage or harm to personnel.

    (3)

    Pollutants which 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, or any water wastes containing toxic or poisonous solids, liquids or gases in a quantity sufficient to interfere with any sewerage or sewage treatment process, constitute a hazard to humans or animals or create a public nuisance, whether these wastes cause problems independently or via action with other substances.

    (4)

    Solids or viscous liquids in quantities, types or sizes which will cause either flow obstruct ion in the sewer system or interference with the operation of the POTW (size may not be greater than one-half (½) inch in any dimension).

    (5)

    Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the POTW.

    (6)

    Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through; and

    (7)

    Wastes or pollutants which have been classified as hazardous waste or hazardous materials in accordance with 40 CFR Part 261.

(Code 1976, § 6-2073; Ord. No. 97-05, § 1, 3-11-97)