No person shall discharge, or cause to be discharged, to any public sewer any of the following described substances, materials, waters or wastes:
(A) Any liquid or vapor having a temperature higher than 150° F. (65° C.).
(B) Any waters or wastes which contain grease or oil or other substance that will solidify or become discernibly viscous at temperatures between 32° to 150° F.
(C) Any waters or wastes containing emulsified oil and grease in excess of 50 parts per million by weight (417 pounds per million gallons) or either soluble matter.
(D) Any gasoline, benzene, naphtha, fuel oil, mineral oil, or other flammable or explosive liquid, solid, or gas.
(E) Any waters or wastes that contain more than 10 parts per million by weight of the following gases: hydrogen sulfide; sulphur dioxide; or nitrous oxide.
(F) Any garbage that has not been properly shredded.
(G) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage works.
(H) Any waters or wastes that contain phenols or phenolic compounds.
(I) Any waters or wastes having a pH lower than 5.5 or higher than 9.5 or having corrosive properties capable of causing damage or hazard to the structures, equipment, or personnel of the sewage works.
(J) Any waters or wastes containing a toxic or poisonous substance or of high chlorine demand in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters or stormwater overflows or the effluent of the sewage treatment plant.
(K) Any waters or wastes containing cyanides.
(L) Any waters or wastes containing the discharge of strong acids, iron pickling wastes, or concentrated plating solutions whether neutralized or not.
(M) Any waters or wastes containing suspended solids of such character and quantity that unusual provision, attention, or expense is required to handle such materials at the sewage treatment plant. Upon approval by the city such waters or wastes may be accepted for treatment and a surcharge for that portion exceeding the limits of "normal sewage" shall be levied as provided for in § 50.46.
(N) Any noxious or malodorous gas or substance, which either singly 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 or repair.
(O) Any long half-life over 100 days of toxic, radioactive isotopes, without special permit. The radioactive isotopes I131 and P32 used at hospitals are not prohibited, if properly diluted at their source.
(P) Any waters or wastes that for a duration of five minutes has a concentration greater than five times that of "normal sewage" as measured by suspended solids and B.O.D., or which is discharged continuously at a rate exceeding 250 gallons per minute.
(Q) Any waters containing dye wastes, paper pulp wastes, spent tanning solutions or other wastes which either singly or by interaction with other wastes produce undesirable colors in the final plant effluent.
('76 Code, § 90.05 (A)) (Ord. 757-1959, passed - - )
Penalty, see § 50.99