§ 340-29. Prohibited discharges.

A. 

No person shall discharge or cause to be discharged into any public sewer any liquid or waste which contains the following substances in amounts which exceed those levels which have been established as present in the City's potable water system:

(1) 

Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid or gas.

(2) 

Any waters or wastes containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any wastewater facility, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the wastewater treatment works, including but not limited to cyanide in excess of two milligrams per liter as CN in the wastes as discharged to the public sewer.

(3) 

Any herbicides and pesticides.

(4) 

Any waters or wastes having a pH lower than 5.5, or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the wastewater facility.

(5) 

Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or others interference with the proper operation of the wastewater facility such as, but not limited to, ashes, cinders, sand, mud, straw, ground garbage, whole blood, paunch manure, hair and fleshings, entrails, and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders.

(6) 

Any amount of the following heavy metals:

	Antimony	Chromium (tri)	Rhenium
	Arsenic	Cobalt	Selenium
	Barium	Copper	Silver
	Beryllium	Iron	Strontium
	Bismuth	Lead	Tellurium
	Boron	Manganese	Tin
	Cadmium	Mercury	Uranyl Ion
	Chromium (hexa)	Zinc	Nickel
	Molybdenum

B. 

Dilution of toxic materials and heavy metals in lieu of removal is not acceptable.