[Ord. No. 1457, § 1, 2-15-2006]
No user or significant user shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation of the collection system or performance of the POTW. These general prohibitions apply to all such users of a POTW, whether or not the user is subject to national categorical pretreatment standards or any other national, state or local pretreatment standards or requirements. A user or significant user may not contribute the following substances to any POTW:
(1) 
Any liquids, solids or gases which, by reason of their nature or quantity, are or may be sufficient, either alone or by interaction with other substances, to cause fire or explosion, or be injurious in any other way to the POTW or to the operation of the POTW. At no time shall two (2) successive readings on an explosion hazard meter at the point of discharge into the system (or at any point in the system) be more than five (5) percent, nor any single reading over ten (10) percent of the lower explosive limit (LEL) of the meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, hydrides and sulfides. In addition, waste streams with a closed-cup flashpoint of less than one hundred forty (140) degrees Fahrenheit [sixty (60) degrees Celsius] are prohibited.
(2) 
Solid or viscous substances which may cause obstruction to the flow in a sewer or pass-through and/or other interference with the operation of the wastewater treatment facilities or collection 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, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, wastepaper, wood, plastics, gas, tar, asphalt, residues, petroleum oil, nonbiodegradable cutting oil, or other products of mineral oil origin, mud, glass grinding or polishing wastes in amounts that will cause interference or pass-through.
(3) 
Any wastewater having a pH less than 6.0 or greater than 9.0, or wastewater having any other corrosive property capable of causing damage or hazard to structures, equipment and/or personnel of the POTW or wastewater collection system. At the authority's discretion, an industrial user may be permitted for a minimum pH of 5.0 and a maximum of 10.0.
(4) 
Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction with other pollutants, to injure, to interfere with any wastewater treatment process, to constitute a hazard to humans or animals, to create a toxic effect in the receiving waters or the POTW, or to 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.
(5) 
Any noxious or malodorous liquids, gases or solid which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or hazard to life, or are sufficient to prevent entry into the sewers for maintenance and repair.
(6) 
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 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.
(7) 
Any substance which alone or with discharges from other sources will cause a pass- through at the POTW resulting in a violation of its NPDES permit or the receiving water quality standards.
(8) 
Any wastewater 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 or collection system, resulting in interference, but in no case wastewater with a temperature at the introduction into the POTW which exceeds forty (40) degree Celsius [one hundred four (104) degrees Fahrenheit].
(10) 
Any pollutants, including oxygen-demanding pollutants (BOD, etc.), released at a flow rate and/or pollutant concentration which cause interference to the POTW. In no case shall a slug load have a flow rate or contain concentration or qualities of pollutants that exceed for any time period longer than fifteen (15) minutes more than five (5) times the average 24-hour concentration, quantities or flow during normal operation.
(11) 
Any wastewater containing any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the MIPP Coordinator in compliance with applicable state or federal regulations.
(12) 
Any wastewater which causes a hazard to human life or creates a public nuisance.
(13) 
Stormwater, groundwater, roof runoff, subsurface drainage or cooling water.
(14) 
Trucked or hauled wastes except at points designated by the control authority.
When the control authority determines that a user or significant user is contributing to the POTW any of the above-enumerated substances in such amounts as interfere with the operation of the POTW, the MIPP Coordinator shall advise the user of the impact of the contribution of the POTW and develop effluent limitations for such user to correct the interference with the POTW.
In addition, all users or significant users are required to notify the MIPP Coordinator in writing of any new introduction of wastewater constituents or any substantial change in the volume or character of the wastewater constituents, such notification being made not less than one hundred eighty (180) days prior to such introduction into the wastewater treatment system.
The MIPP Coordinator may also deny or condition new or increased discharges when they do not meet applicable pretreatment standards and requirements or when they would cause the POTW to violate its NPDES permit.
[Ord. No. 1457, § 1, 2-15-2006]
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 article for sources in that subcategory, is enforceable under this article, per 40 CFR section 402.12. The MIPP Coordinator is responsible to notify all affected users or significant users of the promulgation of categorical standards reporting requirements under this regulation. The MIPP Coordinator is responsible to notify the affected users of the promulgation of categorical standards, even though local limits may be more stringent. Each user or significant user shall be responsible to notify the MIPP Coordinator of changes to its status under the federal, state or local regulations.
[Ord. No. 1457, § 1, 2-15-2006]
Where the control authority's wastewater treatment system achieves consistent removal of pollutants limited by federal pretreatment standards, the MIPP Coordinator may apply to the approval authority for modifications of specific limits in the federal pretreatment standards. "Consistent removal" shall mean the 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 in ninety-five (95) percent of the 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 MIPP Coordinator 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. No. 1457, § 1, 2-15-2006; Ord. No. 1513, § 1, 3-9-2009]
No person shall discharge into the control authority collection system wastewater containing in excess of:
Pollutants
Local Limit
(mg/l)
Arsenic
0.88
Cadmium
0.28
Chromium (Total)
57.21
Copper
4.41
Cyanide
5.52
Lead
1.33
Mercury
0.08
Molybdenum
5.25
Nickel
4.57
Selenium
1.15
Silver
13.08
Zinc
8.06
Concentrations apply at the point where the waste enters the Township wastewater collection system. For users subject to categorical standards, categorical concentrations apply at the end of the process waste stream.
Where any significant user requires greater than five (5) percent of the POTW treatment plant's capacity on an average daily mass basis, more stringent limitations may be imposed by the control authority.
All wastewater entering the Township collection system shall be pretreated to normal domestic levels unless stated otherwise in writing by the MIPP Coordinator by way of a significant user permit. These levels shall be:
BOD 5 — 250 mg/l (1)
TOTAL SUSPENDED SOLIDS — 250 mg/l (1)
AMMONIA — Nitrogen - 25 mg/l as N (1)
TKN — 40 mg/l as N
PHOSPHATE (TOTAL AS P) — 10 mg/l
OIL AND GREASE — 100 mg/l
(1)
At the control authority's discretion, users may exceed the maximum concentrations listed for these parameters. But users will be surcharged according to the control authority's "high strength surcharge formula."
[Ord. No. 1457, § 1, 2-15-2006]
State requirements and limitations on discharges shall apply in any case where they are more stringent than federal requirements and limitations or those in this article.
[Ord. No. 1457, § 1, 2-15-2006]
The Township 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 Sec. 1(b) of this article.
[Ord. No. 1457, § 1, 2-15-2006]
No user or significant 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 federal categorical pretreatment standards or with any other pollutant-specific limitation developed by township, control authority, state or federal agencies.
[Ord. No. 1457, § 1, 2-15-2006]
(a) 
Protection from accidental discharges. Each user shall provide protection from accidental or slug discharges of prohibited materials or other substances which have the potential to cause interference or pass-through at the POTW and are regulated by this article. Slug discharges include any discharge of a nonroutine, episodic nature, including but not limited to an accidental spill or a noncustomary batch discharge. Facilities to prevent accidental discharge or slug discharge of prohibited materials shall be provided and maintained at the user's own cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the MIPP Coordinator for review and shall be approved by the MIPP Coordinator before construction of the facility. The slug control plan shall contain a description of discharge practices (including nonroutine batch discharges); a description of stored chemicals; procedures for immediate notification to the POTW of slug discharges; and written procedures to prevent adverse impacts from any accidental spill (i.e., operation and maintenance, general housekeeping and training). All existing users shall complete such a plan within ninety (90) days. 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 the accidental discharge and slug discharge procedures have been approved by the MIPP Coordinator. Review and approval of such plans and operating procedures shall not relieve the user from the responsibility to modify its facility, as necessary, to meet the requirements of this article. In the case of an accidental discharge or slug discharge (either accidental or intentional), 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) 
Written report. Within five (5) days following an accidental discharge, the user or significant user shall submit to both the Township and the control authority a detailed written report describing the cause of the discharge; the anticipated time that this condition had occurred; when it has been corrected; the measures to be taken to mitigate any expense, loss, damage or other liability which may be incurred as a result of damage to the POTW or aquatic life or any other damage to persons or property; and the steps taken by the user to prevent a reoccurrence of the conditions which caused or led to the accidental or slug loading. Such report shall not relieve the significant user of any fines, civil penalties or other liability which may be imposed by this article or other applicable law. Written reports will be deemed to have been submitted on the date postmarked. For reports which are not mailed, postage prepaid, into a mail facility by the U.S. Postal Service, the date of receipt of the report shall govern.
(c) 
Notice to employees. A notice shall be permanently posted on the user's or significant 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 procedures.
(d) 
Discharge of hazardous waste. Unless otherwise approved by the control authority, no materials considered a hazardous waste under 40 CFR part 261 shall be mixed with wastewater that ultimately enters the Township sanitary collection system.