(A) No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
(1) Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas;
(2) Any waters or wastes containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant, including, but not limited to, cyanides in excess of 0.05 mg/l as CN in the wastes as discharged to the public sewer;
(3) Any waters or wastes having a pH lower than 5.5, or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the sewage works; or
(4) Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the sewage works, such as, but not limited to: ashes; cinders; sand; mud; straw; shavings; metal; glass; rags; feathers; tar; plastics; wood; unground garbage; paunch manure; hair and fleshings; entrails; and paper dishes, cups, milk containers, and the like, either whole or ground by garbage grinders.
(B) 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 these 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 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°F (65°C);
(2) Any water or waste containing fats, wax, grease, or oils whether emulsified or not, in excess of 100 milligrams per liter, or containing substances which may solidify or become viscous at temperatures between 32°F and 150°F (O°C and 65°C);
(3) Any garbage that has not been properly shredded. The installation and operation of any garage grinder equipped with a motor of three-fourths horsepower (0.76 horsepower 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, zinc, and similar objectionable or toxic substances; or wastes exerting an excessive chlorine requirement, to a degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the Superintendent for those materials;
(6) Any waters or wastes containing phenols or other taste- or odor-producing substances, in 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 for such discharge to the receiving waters;
(7) Any radioactive wastes or isotopes of a half-life or concentration as may exceed limits established by state or federal regulations;
(8) Any waters or wastes having a pH in excess of 9.0;
(9) Materials which exert or cause:
(a) Unusual concentrations of inert suspended 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, chemical oxygen demand, or chlorine requirements in quantities as to constitute a significant load on the sewage treatment works; or
(d) Unusual volume of flow or concentration of wastes constituting “slugs” as defined herein.
(10) 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 a degree that the sewer treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
(C) Any person who transports septic tank, seepage pit or cesspool contents, liquid waste, or any other batch liquid wastes and wishes to discharge such wastes to the public sewer system shall first have a valid domestic waste hauler’s permit. All applicants for a domestic waste hauler’s permit shall complete the application form, pay the appropriate fee, and receive a copy of the city’s regulations governing discharge to sewers of liquid wastes from trucks. All persons receiving such permits shall agree in writing to abide by all applicable provisions of this section and any other special provisions that be established by the city as necessary for the proper operation and maintenance of the sewer system.
(1) Discharge of septic tank, seepage pit, interceptor or cesspool contents, or other wastes containing no industrial wastes may be made by trucks holding a valid permit at a site designated by the Superintendent of the city’s wastewater plant for that purpose. Discharge of truck transporting industrial waste water shall not take place until after the Superintendent has been notified and written permission has been granted. Discharges of truck hauled grease pit and grease trap contents shall not be permitted. The city requires payment as hereinafter provided for the treatment and disposal of costs.
(2) The WWTP reserves the right to refuse permission to discharge any waste that may cause interference or upset at the WWTP or any waste that violates any provision of this section.
(3) Any person holding a valid permit and wishing to discharge to the WWTP may be required to submit to the plant operator of the WWTP a sample of each load prior to discharge. A fee and payment schedule shall be published in the permit to cover costs of required analysis.
(4) It shall be unlawful to discharge any batch liquid waste into any manhole or any other part of the public sewer system or any building sewer or other facility that discharges directly or indirectly to the city public sewer system, except for only the points of discharge specified by the Superintendent of city’s wastewater plant.
(5) Any liquid waste hauler illegally discharging to the public sewer system or discharging wastewater not authorized in the permit shall be subject to immediate revocation of discharge privileges and further subject to the penalties and enforcement actions prescribed in this subchapter. A suspended permittee shall immediately cease discharging any wastes to the sanitary sewer system of the city or to any facilities that discharge either directly or indirectly into its system. Should the suspended permittee or any one driving one of the permittee’s trucks fail to voluntarily comply with any suspension order, the Superintendent shall take such actions as deemed necessary or appropriate to prevent or minimize damage to the WWTP and/or to protect the health and welfare of the system, public, and environment.
(6) A suspended permit may be reinstated by the Superintendent upon submission of assurances satisfactory to the Superintendent that the suspended permittee will comply with this section and the rules and regulations promulgated pursuant this section plus payment of such fines or other penalties as may be levied by the WWTP. The Superintendent shall require that within 15 days after the date of such occurrence, the suspended permittee shall submit a written report to the WWTP detailing the nature and extent of the violation(s) including any non-permitted discharges and the measures taken by the suspended permittee to prevent future occurrences.
(7) Waste haulers who have been granted permission to discharge to the public sewer system shall pay fees for such discharge in accordance with a fee schedule established by the Superintendent and approved by the city. The city shall establish, and from time to time may alter, a schedule of fees, rates, and charges for the domestic waste haulers permit to cover the costs of treatment and disposal of all wastes governing permit issuance, requirements, conditions, suspensions, and all other matters necessary or appropriate to implement this section.
(8) Dumping hours shall be from 8:00 a.m. to 3:00 p.m. local time on the days of Monday through Friday, excluding recognized holidays. Dumping after hours or on weekends or holidays may be allowed by permission only from operator on duty.
(9) The permittee shall complete a chain of custody report for each load of waste deposited into the system. The information on the chain of custody report shall be recorded and signed by an employee of the permittee or the permittee himself or herself and shall be in duplicate forms on forms provided by the city. One copy of the chain of custody will remain at the South Hopkins Regional Wastewater Plant. Payment will be due before discharge will be allowed to take place.
(10) Discharge of hauled wastes allowed under this section shall take place at only the sites designated by the Superintendent of city’s wastewater treatment plant. The designated site to be used under the domestic waste haulers permit may be changed by the Superintendent as deemed necessary.
(11) Nothing in this section shall relieve a waste haulers of the responsibility for compliance of the county’s Health Department, state and federal regulations. All other parts of the city’s sewer user ordinance still applies.
(Prior Code, § 50.31) (Ord. passed 10-6-1980; Ord. 2006-01, passed 4-3-2006) Penalty, see § 50.99