Except as provided in this division, no person shall discharge or cause to be discharged to any public sewer any of the following:
(A) Any liquid or vapor having a temperature higher than 160°F;
(B) Any waters or wastes containing more than 50 milligrams per liter of fats, oils, greases or waxes;
(C) Any gasoline, benzene, naphtha, fuel oil or mineral oil or any other flammable or explosive liquid, solid or gas;
(D) Any noxious or malodorous gas or substance which, either alone or by interaction with other wastes, is capable of creating a public nuisance or hazard to life or of preventing entry into sewers for their maintenance and repair;
(E) Any garbage that has not been properly ground;
(F) Any ashes, cinders, sand, mud, straw, shavings, wood, metal, glass, rags, feathers, tar, plastics, paunch manure, butchers’ offal or any other solid or viscous substances capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewerage system or the wastewater treatment plant;
(G) Any waters or wastes containing phenols in excess of 0.50 milligram per liter;
(H) Any waters or wastes having a pH lower than six or higher than nine or having any other corrosive property capable of causing damage or posing hazards to the structures, equipment or personnel of the sewerage works;
(I) Any copper in excess of one milligram per liter in any wastes discharged into a public sewer;
(J) Any zinc in excess of five milligrams per liter in any wastes discharged into a public sewer;
(K) Any chromium (hexavalent) in excess of one milligram per liter in any wastes discharged into a public sewer;
(L) Any chromium (trivalent) in excess of two milligrams per liter in any wastes discharged into a public sewer;
(M) Total chromium in any wastes discharged into a public sewer shall not be in excess of three milligrams per liter;
(N) Any nickel in excess of one milligram per liter in any wastes discharged into a public sewer;
(O) Any lead in excess of one-tenth milligram per liter in any wastes discharged into a public sewer;
(P) Any cadmium in excess of 0.02 milligram per liter in any wastes discharged into a public sewer;
(Q) Any cyanides, as CN ions, in excess of one milligram per liter in any wastes discharged into a public sewer;
(R) Any waters or wastes containing acid metallic pickling wastes or concentrated plating solutions;
(S) Any toxic radioactive isotopes, without a special permit. The radioactive isotopes I 131 and P 32 used in hospitals are not prohibited if they are properly diluted before being discharged into the sewerage system;
(T) Any waters or wastes containing any toxic substances in quantities that are sufficient to interfere with the biochemical processes of the wastewater treatment plant or that will pass through the plant into the receiving stream in amounts exceeding the standards set by federal, interstate, state or other competent authority having jurisdiction or any waters or wastes containing iron or any other toxic ions, compounds or substances in concentrations or amounts exceeding the limits established by the Board of Public Works and Safety. In no event shall the limits exceed those set forth in Appendix C of the Federal Guidelines for Pretreatment of Pollutants Introduced Into Publicly Owned Treatment Works, published October, 1973, or exceed the limits and restrictions set forth in the city’s NPDES Permit No. IN-0020303 incorporated in this subsection by reference;
(U) Any waters or wastes that for a duration of five minutes or more have a concentration more than five times the average concentration of the BOD or the suspended solids of the customer’s sewage discharged during a 24-hour period of normal operation; and
(V) Any waters or wastes containing suspended solids of such character and quantity that unusual provisions, attention and expense would be required to handle such materials at the wastewater treatment plant, its pumping stations or other facilities.