§ 28-211. Prohibited discharge standards.

(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, or in any way contaminates the POTW biosolids, scum, or residues to such a level as to render them unacceptable for economical reuse or reclamation. 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)

Liquids, solids, or gases which by reason of their nature and quantity are, or may be, sufficient either alone or by interaction with other substances to cause a fire or explosion hazard or be injurious in any other way to the POTW or the operation of the POTW. Such materials include, but are not limited to, gasoline, diesel, benzene, naphtha, fuel oils, kerosene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides, or sulfides, or any wastestream with a closed cup flash point of less than one hundred forty (140) degrees Fahrenheit or sixty (60) degrees Centigrade using the test methods specified in 40 CFR 261.21;

(2)

Wastewater having a pH lower than 5.0 S.U. or greater than 11.0 S.U. or having any other corrosive property capable of causing damage or a hazard to the structures, equipment, and personnel of the POTW.

(3)

Solid or viscous substances in quantities or of such size capable of creating a stoppage, plugging, breakage, or any reduction in sewer capacity or any other damage to the POTW such as, but not limited to, commercial food service oil and grease, ashes, cinders, sand, plastic, wood, un-ground garbage, whole blood, hair and fleshings, entrails, and paper dishes, cups, milk containers, etc. Any additional sewer or sewerage maintenance expenses caused by such a discharge, or any other expenses attributable thereto will be charged to the user by Pine Bluff Wastewater Utility. Any refusal to pay the additional maintenance expense duly authorized by the manager shall constitute a violation of the provisions contained herein;

(4)

Pollutants, including oxygen-demanding pollutants (BOD, COD, 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, upset, or loss of efficiency at POTW. In no case shall a slug load have a flow rate or contain a concentration or quantity of pollutants that exceed for any time period longer than fifteen (15) minutes more than five (5) times the average twenty-four (24) hour concentration, quantity, or flow during normal operation of the discharger;

(5)

Waters, wastes, or vapors discharged at such a volume or temperature which will inhibit biological activity in the treatment plant resulting in interference, but in no case any such waters or wastes which will cause the POTW influent or pumping station wetwell temperature to exceed one hundred four (104) degrees Fahrenheit (40.0 degrees Celsius). Any liquid or vapor having a temperature higher than one hundred thirty (130) degrees Fahrenheit (54.4 degrees Celsius) at the point of discharge;

(6)

Petroleum oil, non-biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass-through;

(7)

Waters or wastes containing toxic or poisonous solids, liquids, or gases, or oxygen demanding wastes, in sufficient quantity, either singly or by interaction with other wastes to injure or cause interference with any sewage treatment process, to contaminate the POTW sludges, scum, or residue to such a level to render them unacceptable for economical reuse or reclamation, to pass-through the POTW and cause a violation of the POTW's NPDES permit or create a toxic effect in the receiving stream, to cause a public nuisance, or to constitute a hazard or an acute health or safety problem to the POTW workers or the public;

(8)

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 the sewers for maintenance or repair;

(9)

Wastewater which imparts color which 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 Pine Bluff Wastewater Utility NPDES permit;

(10)

Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;

(11)

Stormwater, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, de-ionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the manager;

(12)

Sludges, screenings, or other residues from the pretreatment of industrial wastes;

(13)

Medical wastes, no discharge of "any pharmaceutical medications", prescription or "over the counter", unused or expired.

(14)

Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail a toxicity test;

(15)

Detergents, surfactant, or other substances which may cause excessive foaming in the POTW; or

(16)

Hauled or trucked liquid wastes, except at the specific discharge point(s) designated by Pine Bluff Wastewater Utility.

Pollutants, substances, or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW.

(Ord. No. 6381, § 2.1, 2-21-12)