§ 33-220. General user requirements.

It shall be unlawful for any user to discharge or cause to be discharged to the sewage works:

(1)

Inflow, as defined in Section 33-101.

(2)

Pollutants which create a fire or explosion hazard to the sewage works. In no case shall pollutants be discharged with a closed cup flashpoint less than one hundred forty (140) degrees Fahrenheit (sixty (60) degrees centigrade), or pollutants which cause an exceedance of ten (10) percent of the lower explosive limit (LEL) at any point within the sewage works for any single reading or more than five (5) percent for any two (2) consecutive readings.

(3)

Solid or viscous pollutants, petroleum oil, non-biodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through or that will cause obstruction to the flow in sewers or other interference or damage with the sewage works.

(4)

Any waters or wastes containing a hazardous substance, pollutant, contaminant toxic, radioactive, poisonous or other substances in sufficient quantity to injure or interfere with any sewage treatment process, cause corrosive structural damage, constitute an actual or potential threat to human health, welfare or the environment, or create any hazard to the sewage works or in the receiving waters of the sewage works or 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.

(5)

Any waters with a pH less than five (5.0) standards units (S.U.) or greater than ten and five-tenths (10.5) S.U.

(6)

Any waters with a temperature greater than one hundred fifty (150) degrees Fahrenheit (sixty-six (66) degrees centigrade) or heat in amounts which will inhibit biological activity in the POTW resulting in interference, but in no event heat in such quantities that the temperature at the head-works of the POTW treatment plant exceeds one hundred four (104) degrees Fahrenheit (forty (40) degrees centigrade).

(7)

Any water or waste that has in any way been diluted, as a substitute for pretreatment, for the purpose of obtaining compliance with any categorical standard or pretreatment requirement imposed by this chapter except where dilution is expressly authorized by any categorical standard.

(8)

Any water or waste that could cause a violation of any categorical standard or pretreatment requirement.

(9)

Any water or waste that is transported from the point of discharge to the POTW by any septic tank pumper, chemical waste hauler, or similarly transported unless the transporter has first:

a.

Disclosed to the City the origin, nature, concentration and volume of all hazardous substances, pollutants or contaminants to be discharged; and

b.

Obtained the consent of the City to discharge.

(10)

Any water or waste which could cause interference or pass through with POTW operations.

(11)

Any discharge that exhibits a characteristic of a hazardous waste, or contains a substance that is listed as a hazardous waste pursuant to either Arizona Administrative Code R18-8-261 or title 40, Code of Federal Regulations part 261, whichever is applicable, whether or not the discharge is otherwise subject to hazardous waste regulations.

(12)

Any water or wastes exceeding the limits for the following parameters expressed in the total form except as otherwise indicated:

Table 1

INSTANTANEOUS EFFLUENT LIMITATIONS

Substance	Limit
Benzene	35ug/L
Chloroform	2,000 ug/L
mg/L =	milligrams per liter
ug/L =	micrograms per liter

 

(13)

Any of the following prohibited substances:

4, 4'-DDE

4, 4'-DDT

Aldrin

BHC-Alpha

BHC-Beta

HC-Gamma (lindane) Heptachlor

Heptachlor epoxide

Polychlorinated biphenyl compounds.

(Ord. No. 3003, § 1(Exh. A), 9-27-16)