It shall be unlawful for any user to discharge or cause to be discharged to any point of entry into the sanitary sewer system:
(A) Any storm water, surface water, groundwater, roof runoff, surface drainage, cooling water or unpolluted process waters that may constitute inflow, as defined in § 50.01. No rain spout, roof drain or other form of surface drainage and no foundation drainage or sump pump shall be connected to, or discharge into, any sanitary sewer;
(B) Pollutants which create a fire or explosion hazard to the system or treatment plant. In no case shall pollutants be discharged with a closed cup flash point less than 140 degrees Fahrenheit (60 degrees Celsius), or pollutants which cause an exceedance of 10% of the lower explosion limit (LEL) at any point within the wastewater treatment plant for any single reading or more than 5% for any 2 consecutive readings;
(C) Solid or viscous pollutants, petroleum oil, non-biodegradable cutting oil or products of mineral oil origin in amounts that will cause interference with, pass through or that will cause obstruction in the flow in sewers or other interference or damage with the sanitary sewer system or treatment plant efficiency;
(D) Any waters or wastes containing a toxic, radioactive, poisonous or other substance in sufficient quantity to cause, or have the potential to cause, injury or interference with any sewage treatment process, cause effluent of the treatment plant to come out of ADEQ compliance, cause corrosive structural damage or equipment degradation, constitute a hazard to humans or create any hazard to the sanitary sewer system or in the receiving waters of the sewage treatment plant or pollutants which result in the presence of toxic gasses, vapors or fumes within the sanitary sewer system in a quantity that may cause acute worker health and/or safety problems;
(E) Pretreatment of any raw sewage shall be required for excessive PH, low PH, excessive water temperatures, synthetic / organic chemicals, inorganic chemicals, volatile organic chemicals, metals, radio nucleus and any other compounds or chemicals in accordance with the town’s aquifer protection permit;
(F) 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 acceptable categorical standard;
(G) Any water or waste that has the potential to cause a violation of any accepted categorical standard, pretreatment or recharge requirement;
(H) Any water or waste that is transported from the point of generation to the treatment plant by any septic tank pumper, (or) chemical waste hauler, or similarly transported unless the transporter has first:
(1) Disclosed to the Public Works Director the origin, nature, concentration and volume of all pollutants to be discharged; and
(2) Obtained written consent of the Public Works Director to discharge;
(I) Any water or waste which could cause interference or pass-through with the sanitary sewer system or component operations;
(J) Any discharge that exhibits a characteristic of a hazardous waste, or contains a substance that is listed as a hazardous waste pursuant to either A.A.C. R 18-8-261 or Title 40 C.F.R. part 261, whichever is applicable, whether or not the discharge is otherwise subject to hazardous waste regulations. This provision does not apply to domestic wastewater unless part of a home occupation, or to discharges of hazardous wastes that are authorized by the Public Works Director.
(Ord. 04-578, passed 7-22-2004; Am. Ord. 2022-913, passed 2-22-2022)