§ 6-13.501. Prohibited waste discharges.

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 federal, state, or local pretreatment standards or pretreatment requirements. Except as expressly allowed in a permit, no person shall discharge the following to the City's sewerage facilities, the stormdrain system, or waters of the United States:

(a)

Pollutants which create a fire or explosion hazard in the POTW or its collection system, or wastestreams with a closed cup flashpoint of less than 140º Fahrenheit (sixty (60º) degrees Celsius) using the test methods specified in 40 CFR 261.21;

(b)

Any wastewater having a pH less than five (5) or more than ten (10) or wastewater having any other corrosive property capable of causing damage or hazard to persons, structures, or equipment;

(c)

Any solid or viscous substances in amounts that will cause obstruction to the flow or cause interference to the operation of the POTW and in no case solids greater than one-half-inch in any dimension;

(d)

Any pollutants, including oxygen demanding pollutants, released at a flow rate or pollutant concentration which will cause or contribute to interference with the POTW;

(e)

Wastewater having a temperature greater than 104º Fahrenheit (forty (40º) Celsius), or which will inhibit biological activity in the publicly owned treatment plant resulting in interference, but in no case shall wastewater which causes the temperature at the introduction into the publicly owned treatment plant to exceed 104º F (forty (40º) Celsius);

(f)

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

(g)

Any pollutants or substances that result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause health or safety problems;

(h)

Noxious or malodorous liquids, gases, solids, or other wastewater which, either individually or by interaction with other materials, are sufficient to create a public nuisance, hazard to life, or prevents entry by any person to the sewers for maintenance and repair;

(i)

Any trucked or hauled pollutants, except at discharge points designated by the POTW;

(j)

Any wastewater containing pigment or color that alters the color of the receiving waters or creates a visual contrast with the natural appearance of the receiving waters causing the POTW to violate its NPDES Permit;

(k)

At no time shall two (2) successive readings on an explosion hazard meter at any point in the system be more than five (5%) percent nor any single reading over ten (10%) percent of the lower explosive limit of the meter;

(l)

Any liquids, solids, or gases that by reason of their nature or quantity are flammable, reactive, explosive, or corrosive, or by interaction with other materials could result in fire, explosion, or injury;

(m)

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

(n)

Fat, wax, grease, or oil concentration of animal or vegetable origin of more than 300 mg/L, whether emulsified or not, or containing substances which may solidify or become viscous;

(o)

Any water added for the purpose of diluting wastes that would otherwise exceed applicable maximum concentration limitations;

(p)

Any toxic pollutants that interfere with any wastewater treatment process, or constitute a hazard or cause injury to human, animal, or plant life, or exceed any limitation set forth in this chapter;

(q)

Any substance that interferes with any POTW process which renders any product of the POTW unsuitable for reclamation or reuse;

(r)

Any substance which causes the POTW to be in noncompliance with sludge use or disposal criteria, guidelines, or regulations in any federal, state, or local criteria applicable to the sludge management method being used;

(s)

Any substance which may cause or threaten to cause the POTW to violate its NPDES Permit, applicable federal, state, or local statutes, rules or regulations;

(t)

Wax, grease, or oil concentration of mineral or petroleum origin of more than 100 mg/L whether emulsified or not;

(u)

Single pass cooling water;

(v)

Recognizable portions of the human or animal anatomy;

(w)

Floatable material that is removable;

(x)

Any regeneration wastes from unpermitted water softeners and deionizers;

(y)

Any sharps, biohazardous waste, pharmaceuticals, or medical waste;

(z)

Any direct connection of a septic tank or cesspool with a public sewer;

(aa)

Any industrial waste which does not comply with all applicable federal, state, or local pretreatment standards, local limits, and any applicable regulations called for by 40 CFR 403.