Except as hereinafter provided, no person shall discharge or cause to be discharged wastewater containing in excess of the following concentrations at the point or points where the wastewater enters the sewerage system based upon average monthly discharge by-flow composite samples. Multiple industrial wastewater discharges from a permitted facility may be combined in a flow-weighted manner to determine compliance with the following limitations for the average monthly discharge.
(A) Any liquid or vapor having a temperature higher than 150°F. (65°C.).
(B) Any waters or wastes containing more than 100 milligrams per liter of compatible animal or vegetable fats, oils, greases, or waxes of animal or vegetable origin, whether emulsified or not, which may solidify or become viscous at temperatures between 32°F. and 150°F. (0°C. and 65°C.).
(C) Any gasoline, benzene, naphtha, fuel oil, mineral or synthetic oil, or any other flammable or explosive liquid, solid, or gas of mineral origin whether emulsified or not.
(D) Any noxious or malodorous gas or substance which, either alone or by integrating 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 substance capable of causing interference with the proper operation of the sewerage system or the wastewater treatment plant.
(G) Any waters or wastes containing any identifiable chlorinated hydrocarbons.
(H) Any waters or wastes having a pH lower than six or higher than eleven or having any other property capable of causing damage or posing hazards to the structures, equipment, or personnel
of the sewage works. If at any time the above limits are found to have an adverse effect upon the Wastewater Treatment Plant or the collection system, the limits will be changed to become more stringent and/or corrective action will be taken to insure that the City does not violate its discharge permit.
(I) Any copper (Cu) in excess of 2.7 milligrams per liter in any wastes discharged into a public sewer.
(J) Any zinc (Zn) in excess of 2.6 milligrams per liter in any wastes discharged into a public sewer.
(K) Any chromium (Cr) (hexavalent) in excess of two milligrams per liter in any wastes discharged into a public sewer.
(L) Any chromium (Cr) (trivalent) in excess of two milligrams per liter in any wastes discharged into a public sewer.
(M) Total chromium (Cr) in any wastes discharged into a public sewer shall not be in excess of four milligrams per liter.
(N) Any nickel (Ni) in excess of 2.6 milligrams per liter in any wastes discharged into a public sewer.
(O) Any lead (Pb) in excess of 0.4 milligram per liter in any wastes discharged into a public sewer.
(P) Any cadmium (Cd) in excess of 0.7 milligram per liter in any wastes discharged into a public sewer.
(Q) Any silver (Ag) in excess of 0.01 milligram per liter in any wastes discharged into a public sewer.
(R) Any cyanides, as total CN ions, in excess of 2.7 milligrams per liter in any wastes discharged into a public sewer.
(S) Any tin (Sn) in excess of one milligram per liter in any wastes discharged into a public sewer.
(T) Any phenolic compound in excess of one milligram per liter in any wastes discharged into a public sewer.
(U) Arsenic value will be set per EPA or IDEM requirement.
(V) Selenium value will be set per EPA or IDEM requirement.
(W) Molybdenum value be set per EPA or IDEM requirement.
(X) Any waters or wastes containing acid metallic pickling wastes or concentrated plating solutions.
(Y) 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.
(Z) Any waters or wastes containing any toxic substances in quantities that are sufficient to interfere with the biochemical processes of the wastewater treatment plant, 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 contaminate sewage sludge. Any waters or wastes containing iron or any other toxic ions, compounds, or substances in concentrations or amounts exceeding the limits established from time to time by the Utility Service Board, or wastes exerting an excessive chlorine requirement, but in no event shall the limits exceed those set forth in General Pretreatment Regulations (40 CFR, Part 403) for Existing and New Sources of Pollution published June 1978, and Effluent Guidelines and Standards pursuant to this document, or exceed the limits and restrictions set forth in the city NPDES Permit No. IN- 0022934 and amendments and revisions incorporated herein by reference.
(AA) Any unusual volume of flow or concentration of wastes constituting "slugs" that for a duration of five minutes or more have a concentration or flow of more than five times the average concentration of the BOD, the suspended solids, or flow of the customer's sewage discharged during a 24-hour period of normal operation.
(BB) Any waters or wastes containing suspended solids or dissolved solids of such character and quantity that unusual provision, attention, and expense would be required to handle the materials at the wastewater treatment plant, its pumping stations, or other facilities.
(CC) Any substance which may cause the POTW's effluent or any other product of the POTW such as residues, sludges, or scums, to be unsuitable for reclamation and reuse or to interfere with the reclamation process. In no case, shall a substance discharged to the POTW cause the POTW to be in non- compliance with sludge use or disposal criteria, guidelines or regulations developed under Section 405 of the Act, or any criteria, guidelines, or regulations affecting sludge use or disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substances Control Act, or state criteria applicable to the sludge management method being used.
(DD) Any pollutant, including oxygen demanding pollutants (such as biochemical oxygen demand), released in a discharge at a flow rate or pollutant concentration which will cause interference.
('75 Code, § 7.41) (Ord. 4-78, passed 7-18-55; Am. Ord. PO-80-1, passed 11-24-80; Am. Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98) Penalty, see § 51.999