No person shall discharge or cause to be discharged the following described substances, materials, waters, or wastes without a treatment agreement with the city and without filing IDNR form 31 with the city and IDNR:
A. Any water or wastes excluding sanitary wastes having:
Five (5) day BOD greater than 8.5 pounds per day, or
Suspended solids concentration greater than ten (10) pounds per day, or
Average daily flow greater than twelve thousand (12,000) gallons per day, or
Ammonia greater than two (2) pounds per day.
B. Any liquid or vapor having a temperature higher than one hundred twenty degrees Fahrenheit (120°F) (48°C).
C. Any water or wastes which contain grease, fats, wax, or oil, whether emulsified or not, in excess of one hundred milligrams per liter (100 mg/l), or other substances that will solidify or become discernibly viscous at temperatures between thirty two degrees (32°) and one hundred fifty degrees Fahrenheit (150°F) (0° - 65°C). (Ord. 94-94, 5-31-1994)
D. 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 mayor. (Ord. 94-94, 5-31-1994; amd. 2015 Code)
E. Any water or wastes containing nonedible type oil or grease such as petroleum or mineral oil or grease.
F. Any water or wastes that contain more than ten (10) parts per million by weight of the following gases: hydrogen sulphide, sulphur dioxide, or nitrous oxide.
G. Any water or wastes that contain phenols or other taste and odor producing substances, in excess of five-tenths (0.5) parts per million by weight.
H. Any water or wastes, acid or alkaline in reaction, and having corrosive properties capable of causing damage or hazard to structures, equipment and personnel of the city.
I. Any water or wastes containing any of the constituents listed in section 8-3-6, "Prohibited Discharges", of this chapter, or any other objectionable or toxic substances.
J. Any water or wastes containing the discharge of strong acid iron pickling wastes, or concentrated plating solution whether neutralized or not.
K. Any noxious or malodorous gas or substances, 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 and repair.
L. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the director in compliance with applicable state and federal regulations.
M. Materials which exert or cause:
1. Unusual concentrations of inert suspended solids such as, but not limited to, fuller's earth, lime slurries, and lime residues or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate).
2. Excessive discolorations such as, but not limited to, dye wastes and vegetable tanning solutions.
N. Any water or wastes containing substances which are not amenable to treatment or reduction by the water pollution control processes employed, or are amenable to treatment only to such a degree that the water pollution control plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving water.
O. Any water or wastes which by interaction with the other water or wastes in the public sewer system, releases obnoxious gases or develops color of undesirable intensity; or forms suspended solids in objectionable concentration; or creates any other conditions deleterious to structures and treatment processes, shall be subject to control or shall be banned from the system as determined by the director.
P. Any wastes which, in the opinion of the director, may harm either the public sewers, water pollution control plant, treatment process, equipment, or have an adverse effect on the receiving stream, or can otherwise endanger life, limb, public property, or constitute a nuisance. In forming his opinion as to the acceptability of these wastes, the director shall give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction in the sewers, nature of the treatment processes, capacity of the water pollution control facilities, degree of treatability of wastes in question, and other pertinent factors. Factors influencing this ruling and known conditions at the time of this ruling shall be recorded by the director in the plant file at the time the ruling is made. (Ord. 94-94, 5-31-1994)