(a) General Discharge Prohibitions. No discharger shall contribute or cause to be discharged, directly or indirectly, any of the following described substances into the wastewater disposal system or otherwise to the facilities of the Authority:
(1) Pollutants which create a fire or explosion hazard in the POTW, including but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or sixty degrees Centigrade using the test method specified in 40 CFR 261.21.
(2) Solid or viscous substances which will or may cause obstruction to the flow in a sewer or other interference with the operation of the wastewater system, such as, but not limited to: grease, garbage with particles greater than one-half inch in any dimension, animal guts or tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, hops, wastepaper, wood, plastics, gas, tar, asphalt residues, residues from refining or processing of fuel or lubricating oil, mud or glass grinding or polishing wastes, petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin are now prohibited if discharged in amounts that can pass through or cause interference..
(3) Any wastewater having a pH less than 5.0 or higher than 9.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment or personnel of the system, unless the system is specifically designed to accommodate such wastewater.
(4) Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, or to exceed the limitation set forth in Categorical Pretreatment Standards Appendix B. A toxic pollutant includes but is not limited to any pollutant identified in the Toxic Pollutant List set forth in Appendix A.
(5) 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.
(6) Any substance which may cause the POTW's effluent or treatment residues, sludges or scums to be unsuitable for reclamation and reuse or to interfere with the reclamation process. (In no case shall a substance discharged to the POTW cause the POTW to be in noncompliance with sludge use or disposal criteria, guidelines or regulations developed under Section 405 of the Act; any criteria, guidelines or regulations affecting sludge use or disposal developed pursuant to the Solid Waste Disposal Act, the Clean Air Act, the Toxic Substances Control Act or state standards applicable to the sludge management method being used.)
(7) Any substance which will cause the POTW to violate its NPDES and/or other disposal system permits.
(8) Any substance with objectionable color not removed in the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions.
(9) Any wastewater having a temperature which will inhibit biological activity in the POTW treatment plant resulting in interferences; but in no case, wastewater with a temperature at the introduction into the POTW which exceeds forty degrees Centigrade (104 degrees Fahrenheit).
(10) Any pollutants, including suspended solids (TNR) and oxygen demanding pollutants (BOD, etc.) released at a flow rate and/or pollutant concentration which a user knows or has reason to know, will cause interference to the POTW. In no case shall a slugload have a flow rate or contain a concentration or qualities of pollutants that exceed for any time period longer than fifteen minutes or more than five times the average twenty-four hour concentration, quantities or flow during normal operation.
(11) Any waters or wastes having characteristics in excess of that determined to be normal discharge for the City as herein defined, BOD5 greater than 250 parts per million by weight and SS (TNR) greater than 250 parts per million.
(12) Any unpolluted water, including, but not limited to, noncontact cooling water.
(13) Any wastewater containing any radioactive wastes or isotopes of such halflife or concentration as exceed limits established by the Authority in compliance with applicable state or federal regulations.
(14) Any wastewater which causes a hazard to human life or creates a public nuisance.
(15) Any removal of manhole lids or other access to the sewer system for the purpose of discharging wastes at times and/or locations other than those designated by the Director, or without the expressed permission of the Director, shall be considered a violation and shall be subject to enforcement action including fines and penalties allowed under this chapter.
(16) Petroleum oil, nonbiodegradable cutting oil or products of mineral oil origin if discharged in quantities or concentrations which can pass through or cause interference.
Whoever violates this section shall be punished by fine not exceeding one thousand dollars ($1,000) and costs, and if default is made in payment thereof, such person may be confined in the City Jail for a period not exceeding 120 days. Each day of violation shall be a separate offense.
(b) Limitations on Wastewater Strength.
(1) National Categorical Pretreatment Standards. National Categorical Pretreatment Standards as promulgated by the U.S. Environmental Protection Agency (EPA) pursuant to the Act shall be met by all dischargers of the regulated industrial categories. An application for modification of the National Categorical Pretreatment Standards may be considered for submittal to the Regional Administrator by the Authority, when the Authority's wastewater treatment system achieves consistent removal of the pollutants as defined by 40 CFR 403.7.
(2) State requirements. State requirements and limitations on discharges to the POTW shall be met by all dischargers which are subject to such standards in any instance in which they are more stringent than federal requirements and limitations or those in this or any other applicable ordinance.
(3) Right of revision. The Authority reserves the right to amend this chapter to provide for more stringent limitations or other requirements on discharges to the POTW where deemed necessary to comply with the objectives set forth in subsection (a) hereof.
The Authority also reserves the right to enter into a separate agreement with a discharger to establish specific discharge limitations. Surcharges may be imposed in those cases where unusual or extra-strength wastes are accepted by the POTW. In any case, the objectives set forth in subsection (a) hereof shall apply, and these objectives shall govern the acceptance of any wastewater. In no case shall the acceptance of an unusual or extra- strength waste be allowed which will violate state and federal pretreatment standards, cause the POTW to violate its NPDES permit and water quality standards, nor shall it impose any harm to the general public, the sewer system or POTW.
(4) Dilution. No discharger shall increase the use of potable or process water in any way, 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 this chapter.
(Ord. 66, 1991. Passed 10-21-91.)
(5) Supplementary limitations. No discharger shall discharge wastewater containing concentrations of the following enumerated materials exceeding the following values:
Material Concentration (mg/l) Arsenic 0.57 Cadmium 0.097 Copper 0.121 Total cyanide 0.331 Lead 2.194 Mercury 0.001 Nickel 1.095 Silver 0.034 Hexavalent chromium 0.208 Total chromium 1.748 Zinc 0.231 Phenols 0.200 Petroleum, oil, grease 100.000 Molybdenum 2371.000 Selenium 3.947 |
The Authority may impose mass limitations on discharges which are using dilution to meet the pretreatment standards or requirements of this chapter or in other cases where the imposition of mass limitations is deemed appropriate by the Authority.
(Ord. 2, 2017. Passed 1-3-17.)
(c) Accidental Discharges. Each discharger shall provide protection from accidental discharge of prohibited or regulated materials or substances established by this chapter. Where necessary, facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the discharger's cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the Authority for review, and shall be approved by the Authority before construction of the facility. Each existing discharger shall complete its plan and submit same to the Authority. No discharger who discharges to the POTW after the aforesaid date shall be permitted to introduce pollutants into the system until accidental discharge protection procedures have been approved by the Authority. Review and approval of such plans and operating procedures by the Authority shall not relieve the discharger from the responsibility to modify its facility as necessary to meet the requirements of this chapter.
Dischargers shall notify the Authority immediately upon the occurrence of a slugload or accidental discharge of substances prohibited by this chapter. The notification shall include location of discharge, date and time thereof, type of waste, concentration and volume and corrective actions. Any discharger who discharges a slugload of prohibited materials shall be liable for any expense, loss or damage to the POTW, in addition to the amount of any fines imposed on the Authority on account thereof under state or federal law.
Signs shall be permanently posted in conspicuous places on the discharger's premises, advising employees whom to call in the event of a slug or accidental discharge. Employers shall instruct all employees who may cause or discover such a discharge with respect to emergency notification procedure.
(Ord. 66, 1991. Passed 10-21-91.)