(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 Administrator 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 or her opinion as to the acceptability of these wastes, the Administrator 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.
(B) The substances prohibited are:
(1) Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of 50 mg/l or containing substances which may solidify or become viscous at temperatures between 32° and 100°F (0° and 38°C);
(2) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipment with a motor of three-fourths horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the Administrator. Properly shredded means that no solids shall have a maximum dimension of more than two inches;
(3) Any waters or wastes containing phenols or other taste- or odor-producing substances which are present after treatment of the composite waste in concentrations exceeding those limits as may be established by the Administrator;
(4) Any waters or wastes having a pH excess of 8.5;
(5) Materials which exert or cause:
(a) 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);
(b) Excessive discoloration (such as but not limited to dye wastes and vegetable tanning solutions); and/or
(c) BOD or chemical oxygen demand in excess of 300 mg/l, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works;
(6) Suspended solids in excess of 300 mg/l or dissolved solids in excess of 700 mg/l;
(7) Any waters or wastes or discharges from rain leaders, outside alleyways, foundation drains, sump pumps, or any other stormwater connections;
(8) Any waters or wastes containing concentrations of nutrients, such as P and TKN including other nutrients, which in the opinion of the Administrator are detrimental to the POTW or may alone or in combination affect the safe or continued operations of the POTW; and
(9) If any waters or wastes are discharged or are proposed to be discharged to the POTW’s system by a customer, which waters contain the substances or possess the characteristics enumerated in this section and which in the judgment of the Director may have a deleterious effect upon the POTW or the receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Director may:
(a) Require said customer to register and furnish all information requested by the approving authority concerning their operations pertinent to their wastes and processes;
(b) Require that said customer obtain all applicable permits for the discharge of wastes;
(c) Reject the wastes;
(d) Require pretreatment of the wastewaters to an acceptable condition for discharge to the district’s system;
(e) Require control over the quantities and rates of discharge;
(f) Require payment to cover the added cost of handling and treating the wastes amenable to treatment; and/or
(g) Require that no change be made in the manufacturing process which might affect the volume or character of wastes without prior written approval of the approving authority.
(2004 Code, § 181-5) (Ord. 57, passed 2-18-1986; Ord. 57-A, passed 10-5-1993) Penalty, see § 52.999