(1) Any solids, liquids or gases which by themselves or by interaction with other substances may cause fire or explosion hazards, or in any other way be injurious to persons, property or the operation of the Selah Wastewater Treatment Plant.

(2) Any solids, greases, slurries or viscous material of such character or in such quantity that, in the opinion of the treatment plant supervisor or the public works director may cause an obstruction to the flow or otherwise interfere with the proper functioning of the Selah Wastewater Treatment Plant.

(3) Any toxic substance, chemical element or compounds in quantities sufficient to impair the operation or efficiency of the Selah Wastewater Treatment facilities, or that will pass through the treatment plant and cause the effluent thereof to exceed state or interstate water-quality requirements for the receiving stream.

(4) Any liquids having a pH lower than 5.0 or higher than 9.0, or having any corrosive property capable of causing damage or hazard to structures, equipment, or personnel of the Selah Wastewater Treatment Plant.

(5) Any radioactive materials.

(6) The hauler of the septage waste does not hold a valid applicable Yakima County Health District registration certificate, or otherwise fails to satisfy or comply with the requirements of any applicable provision of this chapter, any applicable rule or regulation of the Yakima County Health District, or rules or regulations adopted by the city of Selah pertaining to septage waste.

(7) The hauler of the septage waste is delinquent in paying his bill from the city of Selah for septage disposal fees by more than thirty days from the date of billing. (Ord. 1089,, 1993.)