No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes if it appears likely in the opinion of the Village that such wastes can harm either the sewers, sewage treatment process or equipment, have an adverse effect on the receiving stream or can otherwise endanger life, limb, public property or constitute a nuisance. In forming an opinion as to the acceptability of these wastes, the Village will give consideration to such factors as the quantities of subject wastes in relations to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant and other pertinent factors. The substances prohibited are:
A. High Temperature Liquid Or Vapor: Any liquid or vapor having a temperature higher than one hundred fifty degrees Fahrenheit (150°F) (0 and 64° C).
B. Unshredded Garbage: Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths (3/4) horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the Village.
C. Acid Iron: Any waters or wastes containing strong acid iron pickling wastes or concentrated plating solutions, whether neutralized or not.
D. Objectionable Or Toxic Substances: Any waters or wastes containing iron, chromium, copper, zinc and similar objectionable or toxic substances or wastes exerting an excessive chlorine requirement to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Village for such materials.
E. Phenols: Any waters or wastes containing phenols or other taste or odor producing substances, in concentrations exceeding limits which may be established by the Village as necessary, after treatment of the composite sewage, to meet the requirements of the State, Federal or other public agencies of jurisdiction for discharge to the receiving waters.
F. Radioactive Wastes: Any radioactive wastes or isotopes of half-life or concentrations that may exceed limits established by the Village in compliance with applicable State or Federal regulations.
G. Excessive pH: Any waters or wastes having a pH in excess of 9.5.
H. Materials; Specifically: Materials which exert or cause:
1. Unusual concentrations of inert suspended solids (such as, but not limited to, fullers earth, lime slurries and lime residues) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate).
2. Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions).
3. Unusual BOD, chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
4. Slugs or shocks constituting an unusual volume of flow or concentration of wastes which will disturb the normal functioning of either the sewage treatment plant or collection system.
I. Untreatable Substances: Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment process employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters. (1976 Code § 6-2-4)