(a) General Discharge Prohibitions.
(1) The discharge of excessive amounts of unpolluted water or waste to the public sanitary sewerage system is expressly prohibited. However, such discharges to combined sewers or storm sewers will be permitted wherever such sewers have adequate capacity. The Sanitary Board reserves the right to define the amount it deems excessive in each particular situation.
(2) The discharge of any garbage to the public sanitary sewerage system is expressly prohibited unless the garbage has first been properly shredded by a garbage grinder or garbage disposal device.
(3) No user shall contribute or cause to be contributed, directly or indirectly, any pollutants that will pass through the POTW or interfere with the operation or performance of the POTW. These general prohibitions apply to all such users of the POTW whether or not the user is subject to Federal Categorical Pretreatment Standards or any other federal, state, or local Pretreatment Standards or Requirements. A user may not contribute the following substances to the POTW:
A. Any liquids, solids, or gases which by reason of their nature or quantity are or may be sufficient, either alone or by interaction with any other substances, to create a fire or explosion hazard in the POTW, including, but not necessarily limited to, any waste streams with a closed-cup flashpoint of less than 140° Fahrenheit or 60° Centigrade using the test methods specified in 40 CFR Section 261.21. At no time shall two successive readings on an explosion hazard meter, at the point of discharge into the public sewer system (or at any point in the system) be more than 5 percent nor any single reading over 10 percent of the Lower Explosive Limit (LEL) of the meter. Restricted materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides, and sulfides and any other substances which the Approval Authority, the DEP, or EPA deem to pose a fire or explosion hazard.
B. Any solid or viscous substances which may cause obstruction to the flow in a sewer, cause mechanical action which will destroy the sewer structures, or, in the opinion of the Approval Authority, may cause other interference with the operation of the POTW including, 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, spent hops, waste paper, wood, plastics, gas, tar, asphalt residues, residues from refining or processing of fuel or lubricating oil, mud or glass grindings, or polishing wastes.
C. Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a toxic effect in the receiving waters of the POTW, or exceed the limitation set forth in a Categorical Pretreatment Standard. A toxic pollutant shall include, but not be limited to, any pollutant identified pursuant to Section 307(a) of the Act.
D. Any noxious or malodorous liquid, gas, or solid which either singly or by interaction with other wastes is, in the option of the Approval Authority, sufficient to create a public nuisance or hazard to life or is sufficient to prevent entry into the sewers for their maintenance and repair.
E. 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 where the POTW is pursuing a reuse and reclamation program. 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 Substance Control Act, or state criteria applicable to the sludge management method being used.
F. Any substance which will cause the POTW to violate its NPDES and/or state Disposal System Permit or the receiving water quality standards for the West Fork River.
G. Any wastewater containing dyes, paints, pigments, ink, or other coloring agents which are not removed by the treatment process and are in sufficient quantity to add any coloration above that of normal sewage, or cause objectionable color.
H. Any wastewater having a temperature in excess of 60°C (140°F) or which will inhibit biological activity in the POTW treatment plant resulting in interference, but in no case wastewater that causes the temperature of the wastewater at the point of introduction into the POTW treatment plant to exceed 40°C (104°F).
I. Any pollutant, including oxygen demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which will cause interference to the POTW. Where the Sanitary Board deems it advisable, it may require any person discharging industrial wastewater to utilize flow equalization or restricted discharge rates to prevent potential slug loading problems, such as in the case of batch discharges.
J. Any wastewater containing any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Sanitary Board in compliance with applicable state or federal regulations.
K. Any wastewater containing gases or vapors, either free or occluded, in concentrations that may cause a hazard to human life or create a public nuisance.
L. Any wastewater having a pH lower than 5.0 or higher than 10.0, or having any other corrosive property capable of causing damage or hazards to structures, equipment, or personnel of the POTW. Where the Sanitary Board deems it advisable, it may require any person discharging industrial wastes to install and maintain at his own expense, in a manner approved by the Sanitary Board, a suitable device to continuously measure and record the pH of the wastes so discharged.
M. Any wastewater containing petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through, or wastewater containing more than 100 mg/L of fat, oil, or grease (Hexane extractables) of animal or vegetable origin.
N. Any wastewater containing insoluble, nonflocculent substances having a specific gravity in excess of 2.65, or soluble substances in such concentrations as to cause the specific gravity of the waste to be greater than 1.1.
O. Any wastewater or pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute or chronic worker health and safety problems.
P. Any wastewater containing any of the following compounds in concentrations that can cause a hazard to human life: hydrogen sulfide, sulfur dioxide, nitrous oxide, or any of the halogens.
Q. Any trucked or hauled wastewater or pollutants, except at a discharge point(s) designated by the Sanitary Board.
(4) When the Sanitary Board determines that a user is contributing any of the above enumerated substances to the POTW in such amounts that will pass through or interfere with the operation of the POTW, the Sanitary Board shall:
A. Advise the user of the impact of the contribution on the POTW;
B. Develop specific effluent limitation(s) for such user to correct the interference with the POTW; and/or
C. Initiate appropriate enforcement action against the user pursuant to the provisions of Section 937.07 of these Rules and Regulations. (Ord. 06-2. Passed 2-2-06.)
(5) Grease, oil, and sand interceptors shall be provided when, in the opinion of the Superintendent, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interceptors shall not be required for residential users. All interception units shall be of a type and capacity approved by the Superintendent, and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned, and repaired by the User at their expense.
(Ord. 10-23. Passed 9-14-10.)
(b) Specific Pollutant Limitations. No person shall discharge any wastewaters containing any of the following substances in solution in concentrations exceeding the following maximum permissible concentrations:
Parameter (Total) | Discharge |
Concentration Limit (mg/L) | |
Arsenic | 0.91 |
Cadmium | 0.025 |
Chromium (Hexavalent) | 0.06 |
Chromium | 0.6255 |
Copper | 1.8 |
Cyanide (Free) | 0.148 |
Cyanide total | 0.15 |
Lead | 0.3 |
Mercury | 0.002 |
Nickel | 3.01 |
Silver | 0.299 |
Zinc | 2.12 |
(Ord. 10-23. Passed 9-14-10; Ord. 15-15. Passed 8-6-15.)
or any other elements which will, in the opinion of the Sanitary Board, damage collection facilities or otherwise be detrimental to the treatment processes. The limits set forth above may be amended from time to time as deemed necessary by the Sanitary Board to protect the facilities and ensure the POTW's compliance with applicable NPDES Permit conditions and water quality standards. The Sanitary Board reserves the right to impose mass limitations and/or concentration limitations for any pollutant where it deems necessary.
(c) Special Agreements. No statement contained in this article shall be construed as prohibiting any special agreement or arrangement between the Sanitary Board and any person or industrial user whereby an industrial waste of unusual strength or character may be discharged to the POTW by the user, provided the objectives of the General Pretreatment Regulations are fulfilled. Similar to any other requirements imposed under this article, the provisions of such special agreement will be superseded by any more stringent requirements of any applicable Federal Categorical Pretreatment Standard.
(d) Federal Categorical Pretreatment Standards. Upon the promulgation of the Federal Categorical Pretreatment Standard for a particular industrial subcategory, the Federal Standard, if more stringent than limitations imposed under this article for sources in that subcategory, shall immediately supersede the limitations imposed under this article. The Sanitary Board shall notify all affected users of the applicable Federal Standards and the applicable reporting requirements under 40 CFR, Section 403.12, such as the Baseline Monitoring Report.
(e) Modification of Federal Categorical Pretreatment Standards. Where the City's wastewater treatment system achieves consistent removal of pollutants limited by Federal Pretreatment Standards, the Sanitary Board may apply to the Approval Authority for modification of specific limits in the Federal Pretreatment Standards. "Removal" shall mean a reduction in the amount of a pollutant or an alteration of the nature of a pollutant in the influent to the POTW to a less toxic or harmless state in the effluent. Consistent removal shall mean the average of the lowest 50 percent of the removals measured according to the procedures set forth in Section 403.7(b)(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 Sanitary Board may 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.
(f) State Requirements. State requirements and limitations on discharges shall apply in any case where they are more stringent than federal requirements and limitations or
those imposed under this article.
(g) Right of Revision. The City, upon recommendation by the Sanitary Board, reserves the right to establish by amendment to this article more stringent limitations or requirements on discharges to the POTW if deemed necessary.
(h) Excessive Discharge. No user shall ever increase the use of process water or cooling 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 specific pollutant limitation developed by the Sanitary Board or State.
(i) Accidental Discharges.
(1) Each user shall provide protection from accidental discharge of prohibited materials or other substances regulated by this article. Facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the owner's or user's own cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the Sanitary Board for review and shall be approved by the Sanitary Board before construction of the facility. All existing users shall complete and submit such a plan within 90 days after the effective date of this article. No user who commences contribution to the POTW after the effective date of this article shall be permitted to introduce pollutants into the system until accidental discharge procedures have been approved by the Sanitary Board.
(2) All industrial users, whether permitted or not, shall immediately telephone and notify the Sanitary Board of all accidental spills, slug discharges, or other discharges that could cause potential problems for the POTW. This notification shall include the location of the discharge, type of waste, concentration and volume of waste, and any mitigating and/or corrective actions taken. Upon request by the Sanitary Board the industrial user shall also prepare and submit to the Sanitary Board within five days after such notice a detailed written report describing the cause of the discharge and the measures to be taken by the user to prevent any similar occurrences in the future. Such 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 such notification relieve the user of any fines, civil penalties, or other liability which may be imposed by this article or other applicable law.
(3) A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees whom to call in the event of a dangerous discharge. Employers shall ensure that all employees who may cause or suffer such a dangerous discharge to occur are advised of the emergency notification procedure.
(Ord. 02-16. Passed 5-16-02.)
(j) Hauled Wastewater.
(1) Septic tank waste may be introduced into the POTW only at locations designated by the Superintendent, and at such times as are established by the Superintendent. Such waste shall not violate Section 937.03 or any other requirements established by the City. The Superintendent may require septic tank waste haulers to obtain individual wastewater discharge permits.
(2) The Superintendent may require haulers of industrial waste to obtain wastewater discharge permits. The Superintendent may require generators of hauled waste to obtain individual wastewater discharge permits. The Superintendent also may prohibit the disposal of hauled industrial waste. The discharge of hauled industrial waste is subject to all other requirements of this article.
(3) Industrial waste haulers may discharge loads only at locations designated by the Superintendent. No load may be discharged without prior consent of the Superintendent. The Superintendent may collect samples of each hauled load to ensure compliance with applicable Standards. The Superintendent may require the industrial waste hauler to provide a waste analysis of any load prior to discharge.
(4) Industrial waste haulers must provide a waste-tracking form for every load. This form shall include, at a minimum, the name and address of the industrial waste hauler, permit number, truck identification, names and addresses of sources of waste, and volume and characteristics of waste. The form shall identify the type of industry, known or suspected waste constituents, and whether any wastes are RCRA hazardous wastes.
(Ord. 10-23. Passed 9-14-10.)