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It is unlawful for the owner, tenant, occupant, or any person in a building or place where cooking is done, to discharge any grease into the city sewer system. Any commercial cooking facility shall install a grease trap interceptor and shall provide the city with proof of proper cleaning and disposal of said interceptor upon request. Grease-trap interceptors are not required for private living quarters or residential dwellings.
(Ord. PO-98-4, passed 6-8-98)
WASTEWATER ADMISSIBILITY STANDARDS
(A) The objectives of these prohibitions and limitations are as follows.
(1) To prevent the introduction of pollutants into the municipal wastewater system which will interfere with the operation of the system or contaminate the resulting sludge.
(2) To prevent the introduction of pollutants into the municipal wastewater system which will pass through the system, inadequately treated, into receiving waters or the atmosphere or otherwise be incompatible with the system.
(3) To improve the opportunity to recycle and reclaim wastewaters and sludges from the system.
(B) The POTW reserves the right to establish by ordinance more stringent limitations or requirements on discharges to the wastewater disposal system if deemed necessary to comply with the objectives presented in division (A) above.
(Ord. PO-80-1, passed 11-24-80)
Except as hereinafter provided, no person shall discharge or cause to be discharged wastewater containing in excess of the following concentrations at the point or points where the wastewater enters the sewerage system based upon average monthly discharge by-flow composite samples. Multiple industrial wastewater discharges from a permitted facility may be combined in a flow-weighted manner to determine compliance with the following limitations for the average monthly discharge.
(A) Any liquid or vapor having a temperature higher than 150°F. (65°C.).
(B) Any waters or wastes containing more than 100 milligrams per liter of compatible animal or vegetable fats, oils, greases, or waxes of animal or vegetable origin, whether emulsified or not, which may solidify or become viscous at temperatures between 32°F. and 150°F. (0°C. and 65°C.).
(C) Any gasoline, benzene, naphtha, fuel oil, mineral or synthetic oil, or any other flammable or explosive liquid, solid, or gas of mineral origin whether emulsified or not.
(D) Any noxious or malodorous gas or substance which, either alone or by integrating with other wastes, is capable of creating a public nuisance or hazard to life or of preventing entry into sewers for their maintenance and repair.
(E) Any garbage that has not been properly ground.
(F) Any ashes, cinders, sand, mud, straw, shavings, wood, metal, glass, rags, feathers, tar, plastics, paunch manure, butchers' offal or any other solid or viscous substance capable of causing interference with the proper operation of the sewerage system or the wastewater treatment plant.
(G) Any waters or wastes containing any identifiable chlorinated hydrocarbons.
(H) Any waters or wastes having a pH lower than six or higher than eleven or having any other property capable of causing damage or posing hazards to the structures, equipment, or personnel
of the sewage works. If at any time the above limits are found to have an adverse effect upon the Wastewater Treatment Plant or the collection system, the limits will be changed to become more stringent and/or corrective action will be taken to insure that the City does not violate its discharge permit.
(I) Any copper (Cu) in excess of 2.7 milligrams per liter in any wastes discharged into a public sewer.
(J) Any zinc (Zn) in excess of 2.6 milligrams per liter in any wastes discharged into a public sewer.
(K) Any chromium (Cr) (hexavalent) in excess of two milligrams per liter in any wastes discharged into a public sewer.
(L) Any chromium (Cr) (trivalent) in excess of two milligrams per liter in any wastes discharged into a public sewer.
(M) Total chromium (Cr) in any wastes discharged into a public sewer shall not be in excess of four milligrams per liter.
(N) Any nickel (Ni) in excess of 2.6 milligrams per liter in any wastes discharged into a public sewer.
(O) Any lead (Pb) in excess of 0.4 milligram per liter in any wastes discharged into a public sewer.
(P) Any cadmium (Cd) in excess of 0.7 milligram per liter in any wastes discharged into a public sewer.
(Q) Any silver (Ag) in excess of 0.01 milligram per liter in any wastes discharged into a public sewer.
(R) Any cyanides, as total CN ions, in excess of 2.7 milligrams per liter in any wastes discharged into a public sewer.
(S) Any tin (Sn) in excess of one milligram per liter in any wastes discharged into a public sewer.
(T) Any phenolic compound in excess of one milligram per liter in any wastes discharged into a public sewer.
(U) Arsenic value will be set per EPA or IDEM requirement.
(V) Selenium value will be set per EPA or IDEM requirement.
(W) Molybdenum value be set per EPA or IDEM requirement.
(X) Any waters or wastes containing acid metallic pickling wastes or concentrated plating solutions.
(Y) Any toxic radioactive isotopes, without a special permit. The radioactive isotopes I 131 and P 32 used in hospitals are not prohibited, if they are properly diluted before being discharged into the sewerage system.
(Z) Any waters or wastes containing any toxic substances in quantities that are sufficient to interfere with the biochemical processes of the wastewater treatment plant, that will pass through the plant into the receiving stream in amounts exceeding the standards set by federal, interstate, state, or other competent authority having jurisdiction, or contaminate sewage sludge. Any waters or wastes containing iron or any other toxic ions, compounds, or substances in concentrations or amounts exceeding the limits established from time to time by the Utility Service Board, or wastes exerting an excessive chlorine requirement, but in no event shall the limits exceed those set forth in General Pretreatment Regulations (40 CFR, Part 403) for Existing and New Sources of Pollution published June 1978, and Effluent Guidelines and Standards pursuant to this document, or exceed the limits and restrictions set forth in the city NPDES Permit No. IN- 0022934 and amendments and revisions incorporated herein by reference.
(AA) Any unusual volume of flow or concentration of wastes constituting "slugs" that for a duration of five minutes or more have a concentration or flow of more than five times the average concentration of the BOD, the suspended solids, or flow of the customer's sewage discharged during a 24-hour period of normal operation.
(BB) Any waters or wastes containing suspended solids or dissolved solids of such character and quantity that unusual provision, attention, and expense would be required to handle the materials at the wastewater treatment plant, its pumping stations, or other facilities.
(CC) Any substance which may cause the POTW's effluent or any other product of the POTW such as 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 non- compliance with sludge use or disposal criteria, guidelines or regulations developed under Section 405 of the Act, or 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 criteria applicable to the sludge management method being used.
(DD) Any pollutant, including oxygen demanding pollutants (such as biochemical oxygen demand), released in a discharge at a flow rate or pollutant concentration which will cause interference.
('75 Code, § 7.41) (Ord. 4-78, passed 7-18-55; Am. Ord. PO-80-1, passed 11-24-80; Am. Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98) Penalty, see § 51.999
(A) Upon the promulgation of the federal categorical pretreatment standards for a particular industrial subcategory, the federal standard, if more stringent than limitations imposed under this chapter for sources in that subcategory, shall immediately supersede the limitations imposed under this chapter. The Superintendent shall notify all affected users of the applicable reporting requirements under 40 CFR, Section 403.12.
(B) Where the POTW achieves consistent removal of pollutants limited by federal pretreatment standards, the POTW may apply to the approval authority for modification of specific limits in the federal pretreatment standards. Consistent removal shall mean reduction in the amount of a pollutant or alteration of the nature of the pollutant by the wastewater treatment system to a less toxic or harmless state in the effluent which is achieved by the system (95% samples taken) when measured according to the procedures set forth in Section 403.7 (c) (2) of (Title 40 of the Code of Federal Regulations, Part 403) - "General Pretreatment Regulations for Existing and New Sources of Pollution" promulgated pursuant to the Act. The POTW may then modify pollutant discharge limits in the federal pretreatment standards if the requirements contained in 40 CFR, Part 403, Section 403.7, are fulfilled and prior approval from the approval authority is obtained.
(Ord. PO-80-1, passed 11-24-80)
No user shall ever increase the use of process water or, in any way, attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in the federal categorical pretreatment standards, or in any other pollutant-specific limitation developed by the city or the state.
(Ord. PO-80-1, passed 11-24-80) Penalty, see § 51.999
(A) Each non-residential user shall provide protection from accidental discharge of prohibited materials or other substances regulated by this chapter. Facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the owner or user's own cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the POTW for review, and shall be approved by the POTW before construction of the facility. All existing users shall complete such a plan by January 1, 1983. No user who commences contribution to the POTW after the effective date of this chapter shall be permitted to introduce pollutants into the system until accidental discharge procedures have been approved by the POTW. Review and approval of such plans and operating procedures shall not relieve the user from the responsibility to modify the user's facility as necessary to meet the requirements of this chapter. In the case of an accidental discharge, it is the responsibility of the user to immediately telephone and notify the POTW of the incident. The notification shall include location of discharge, type of waste, concentration and volume, and corrective actions.
(B) Within 15 days following an accidental discharge, the user shall submit to the Superintendent a detailed written report describing the cause of the discharge and the measures to be taken by the user to prevent similar future occurrences. Notification shall not relieve the user of any expense, loss, damage, or other liability which may be incurred as a result of damage to the POTW, fish kills, or any other damage to person or property, nor shall notification relieve the user of any fines, civil penalties, or other liability which may be imposed by this chapter or other applicable law.
(Ord. PO-80-1, passed 11-24-80) Penalty, see § 51.999
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