(A) 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 Superintendent that the 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.
(B) In forming this opinion as to the acceptability of these wastes, the Superintendent will give consideration to such factors as the quantities of subject 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 sewage treatment plant, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors.
(C) The substances restricted, unless specifically approved in writing by village permit are:
(1) Any liquid, vapor or waste having a temperature higher than 150°F (65°C) or containing heat in such quantities so as to cause the temperature of the treatment plant influent to exceed 104°F (40°C);
(2) Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 25 mg/l or containing substances which may solidify or become viscous at temperatures between 32°F and 150°F (0°C and 65°C);
(3) Any waters or wastes containing substances in excess of the following levels:
Parameter | Monthly Average Level (mg/l) |
Parameter | Monthly Average Level (mg/l) |
Arsenic | 0.05 |
Cadmium | 0.07 |
Total Chromium | 0.05 |
Copper | 1.80 |
Cyanide | 0.3 |
Lead | 0.3 |
Mercury | 0.2 |
Nickel | 1.0 |
Silver | 0.24 |
Zinc | 1.48 |
(4) Any waters or wastes containing phenols in excess of 0.5 mg/l or other taste or odor producing substances, in such concentrations exceeding limits which may be established by the Superintendent as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies of jurisdiction of the discharge to the receiving waters;
(5) Any waters or wastes have pH in excess of 9.5; and
(6) Materials which exert or cause:
(a) Unusual concentration 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);
(b) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
(c) Unusual BOD, solids concentration or chemical oxygen demand, in such quantities as to constitute a significant load on the sewage treatment works. For purposes of this chapter, any concentrations exceeding the following limits shall be considered unusual. All other determinations of unusual concentrations, if not specified in this local law shall be at the Superintendent’s discretion:
Total solids | 900 mg/l |
Total dissolved solid | 600 mg/l |
Total suspended solids | 300 mg/l |
Settleable solids | 200 mg/l |
BOD | 250 mg/l |
Chemical oxygen demand | 700 mg/l |
(d) Unusual volume of flow or concentration of waste constituting slugs, as defined herein.
(Prior Code, § 3-5-4)