(a) Except as may be permitted in § 21A-33, no person shall discharge or cause to be discharged any substances, materials, waters or wastes if it appears likely in the opinion of the director of public works or public health authority that such wastes can harm the sewers or waste water facilities, can have an adverse effect on the receiving stream or constitute a nuisance.
(b) In forming his or her opinion as to the acceptability of certain wastes, the director of public works or public health authority will consider such factors as the quantities of such wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the waste water facilities, degree of treatability of wastes in the waste water facilities, and maximum limits established by regulatory agencies.
(c) (1) Pursuant to subsection 21A-32(a), and by the publication in pamphlet form of this ordinance, the village hereby publishes the following list of those substances that shall not be discharged in the village:
A. Any liquid or vapor having a temperature higher than 150°F (65°C);
B. Any waters or wastes containing toxic or poisonous materials; or oils, whether emulsified or not, in excess of 100 mg/l or containing substances which may solidify or become viscous at temperatures between 32°F and 150°F (0° to 65°C);
C. Any garbage that has not been properly shredded;
D. Any waters or wastes containing strong acid, iron pickling wastes or concentrated plating solution (whether neutralized or not);
E. Any waters or wastes containing iron, chromium, copper, zinc or 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 director of public works for such materials;
F. Any waters or wastes containing phenols, or other taste or odor-producing substances, in concentrations exceeding limits established by the director of public works or any state, federal or other public agencies having jurisdiction over such discharge to the receiving waters.
G. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by director of public works in compliance with applicable state or federal regulations;
H. Any wastes or waters having a pH in excess of 9.5;
I. Any mercury or any of its compounds in excess of 0.0005 mg/l except as permitted by director of public works in compliance with applicable state and federal regulations;
J. Any cyanide except as permitted by the director of public works in compliance with applicable state and federal regulations;
K. 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; and
4. Unusual volume of flow or concentrations of wastes constituting slugs as defined herein.
L. 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 agencies having jurisdiction over discharge to the receiving waters.
(2) The foregoing list is not all-inclusive, and the director of public works may publish new supplements to such list.