Copyrighted by SPRINGDALE CODE & Municipal Code Corporation, 1998.
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Sec. 118-204. Discharges subject to review by superintendent.
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 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 his 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. The substances prohibited are:
(1) Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit (65 degrees Celsius).
(2) Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 150 mg/l or containing substances which may solidify or become viscous at temperatures between 32 degrees and 150 degrees Fahrenheit (zero and 65 degrees Celsius).
(3) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the superintendent.
(4) Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not.
(5) Any waters or wastes containing iron, chromium, copper, lead, zinc, nickel, manganese, magnesium, chlorides, sulfates, cyanides, or any other objectionable or toxic substances, to such a degree that any such material received in the composite sewage at the wastewater treatment works exceeds the limits established by the superintendent for such materials.
(6) Any industrial waters or wastes discharged in the municipal sewers containing elements, substances, compounds or matter that causes taste and odors that cannot be removed by the normal treatment process, or that creates pernicious problems in the receiving stream.
(7) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits of maximum safety for discharge into receiving waters as established by the United States Public Health Service, state board of health, Atomic Energy Commission and the city sewer department. Half-life for any one radioactive element, (the number of atomic charges per unit of time is proportioned to the quantity of the element present), is the time necessary for the quantity of a given element to decrease to one-half that initially present.
(8) Materials which exert or cause:
a. Unusual concentrations of inert suspended solids (such as, but not limited to, fuller's earth, 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 solution).
c. Unusual BOD, chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
d. Unusual volume of flow or concentrations of wastes constituting slugs (see section 118-146).
(9) Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes 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.
(Code 1973, § 33-70)
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