(A) Prohibitions. No person shall discharge, or cause to be discharged, any of the following described water or wastes to any public sewer:
(1) Any liquid or vapor which causes the influent temperature at the treatment plant to exceed 104°F (40°C), or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed 104°F (40°C).
(2) Any water, wastes, discharges of petroleum oil, nonbiodegradable cutting oil or products of mineral oil origin, if discharged in amounts that can cause passthrough or interference, or which may contain more than 100 mg/l of fat, oil or grease.
(3) Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid or gas.
(4) Any garbage that has not been shredded to a degree that all particles will be carried freely under normal flow conditions prevailing in the public sewer.
(5) Any water or wastes containing substances that will solidify or become discernibly viscous at temperatures between 30 and 150°F, including but not limited to ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interference with the operation of the wastewater system.
(6) Any water or wastes having a pH lower than 5.5 or higher than 11.0, or having any other corrosive property capable of causing damage or hazard to structures, equipment and department personnel.
(7) Any water or wastes containing toxic pollutants in sufficient quantity to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the wastewater treatment plant.
(8) Any water or wastes containing suspended solids of such character and quantity that unusual attention or expense is required to handle the materials at the wastewater treatment plant.
(9) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems, or capable of creating a public nuisance, hazard to life, or sufficient to prevent entry into the sewers for maintenance and repair.
(10) Any water or wastes which cause unsuitable sludge reclamation.
(11) Any water or wastes which cause a detrimental environmental impact or a nuisance in the waters of the state, cause a condition unacceptable to any public authority having regulatory jurisdiction over the wastewater system, or cause the quality of the wastewater treatment plant effluent to violate the NPDES permit limitations.
(12) Any water or wastes which cause discoloration, such that receiving water quality requirements, established by law, cannot be met.
(13) Any radioactive waste, except when the person is authorized to use radioactive materials by the State Department of Health or other governmental agency empowered to regulate the use of radioactive materials.
(14) Wastewater containing concentrations for cadmium, cyanide, nickel, copper, lead, zinc, chromium, and mercury in excess of current local limits on record in the Industrial Pretreatment Program Local Limits Document available at the Wastewater Treatment Plant and in the office of the City Engineer. The city has the right to develop local limits, with technical justification, to enforce compliance. The local limits for pollutants are established to protect against pass-through and interference.
(15) Any water or wastes containing in excess of 0.02 mg/l total identifiable chlorinated hydrocarbons.
(16) Any water or wastes containing in excess of 1.0 mg/l phenolic compounds.
(17) Pollutants which create a fire or explosion hazard to the POTW, including, but not limited to, waste streams with a closed cup flashpoint of less that 140°F or 60°C using the test method specified in 40 CFR 261.21.
(18) Any trucked or hauled pollutants, including industrial and or septic wastes, into any location of the sewer systems or POTW at any time.
(19) At the approval of the City Manager and Utilities Director, licensed haulers of septic waste may be allowed to dump septic wastes at the POTW in accordance with all other city ordinances and fees.
(B) National categorical pretreatment standards.
(1) National categorical pretreatment standards, as promulgated by the U.S. EPA, pursuant to the Federal Act, as amended, are hereby adopted and shall be met by industrial users regulated by such standards. Where categorical pretreatment standards promulgated by the U.S. EPA, pursuant to the Federal Act, as amended, are more stringent than those specified in these regulations, the regulations shall be amended to adopt the more stringent standards. All users regulated by the more stringent standards shall be notified of any proposed regulation change prior to the effective date. Any change or new provision in these regulations shall include a reasonable time schedule for compliance.
(2) All users regulated by categorical standards shall be notified of any proposed regulation change prior to the effective date. Any change or new provision in these regulations shall include a reasonable time schedule for compliance.
(3) Where an industrial user subject to categorical pretreatment standards has not submitted a discharge report as required in § 51.48, he or she shall file a completed discharge report within six months after the promulgation of the applicable categorical pretreatment standards. Where the user has submitted an acceptable discharge report, he or she shall submit to the department any additional information required by the categorical pretreatment standards.
(C) Dilution. No user shall increase the use of potable or process water in anyway, nor mix separate waste streams for the purpose of diluting a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the standards set forth in these regulations.
(D) Right of revision. The city reserves the right to amend these regulations to provide for more or less stringent limitations or requirements on discharges to the wastewater system where deemed necessary to comply with the objectives set forth in § 51.01 of this chapter.
(E) Review. These regulations shall be reviewed annually by the engineer. If, in his or her opinion, changes or additions are required, he or she shall submit them to the City Manager for approval. Upon approval, the amendments shall be submitted to the City Commission for ratification as part of the codified ordinances of the city. There shall be a public notice of any proposed changes in these regulations.
(‘97 Code, § 51.08) (Ord. 35-84, passed 8-20-84; Am. Ord. 54-91, passed 11-18-91; Am. Ord. 9-93, passed 2-15-93; Am. Ord. 3-98, passed 2-2-98; Am. Ord. 21-12, passed 10-16-12; Am. Ord. 3-19, passed 6-4-19; Am. Ord. 3-22, passed 4-5-22; Am. Ord. 10-22, passed 11-1-22)