(A) General prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass through or interference. These general prohibitions apply to all users of the POTW, whether or not they are subject to categorical pretreatment standards or any other federal, state, or local pretreatment standards or requirements.
(B) Storm water prohibitions. No user shall introduce or cause to be introduced into the storm sewer system any pollutants or wastewater that are specifically prohibited nor any of the materials that are defined as illicit discharges.
(C) Specific prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:
(1) Pollutants which create a fire or explosive hazard in the POTW, including, but not limited to, wastestreams with a closed-cup flashpoint of less than 140°F (60°C) using the test methods specified in 40 CFR 261.21;
(2) Wastewater having a pH less than 5.0 or more than 10.0, or otherwise causing corrosive structural damage to the POTW or equipment;
(3) Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference, TSS levels in excess of 250 mg/l daily average may be subject to a surcharge in accordance with the Town of Plainfield Sewer Rate Ordinance;
(4) Pollutants, including oxygen-demanding pollutants (BOD and the like), released in a discharge at a flow rate and/or pollutant concentration that, either singly or by interaction with other pollutants, will cause interference with the POTW. BOD levels in excess of 250 mg/l daily average may be subject to a surcharge in accordance with the Town of Plainfield Sewer Rate Ordinance.
(5) Wastewater having a temperature greater than 150°F (65.5°C) or that 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);
(6) Ammonia levels in excess of 20 mg/l daily average may be subject to a surcharge in accordance with the Town of Plainfield Sewer Rate Ordinance.
(7) Total oil and grease concentrations in excess of 200 mg/l daily average are prohibited and may result in the imposition of a fine per § 51.130 of this chapter;
(8) Phosphorus levels in excess of ten mg/l daily average may be subject to a surcharge in accordance with the Town of Plainfield Sewer Rate Ordinance.
(9) Concentrations of non-polar oil and grease, (total petroleum hydrocarbons), in excess of 100 mg/l or that could cause interference or pass through are prohibited and may result in the imposition of a fine per § 51.130 of this chapter.
(10) Pollutants that could result in the presence of toxic gases, vapors, or fumes within the POTW sewers, including in a quantity that may cause acute worker health and safety problems;
(11) Trucked or hauled pollutants, except at discharge points designated by the Superintendent in accordance with § 51.048 of this chapter;
(12) Noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life, or to prevent entry into the sewers for maintenance or repair;
(13) Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant’s effluent, thereby violating the town’s NPDES Permit (No. IN000062456);
(14) Wastewater containing any radioactive wastes or isotopes, except in compliance with applicable state or federal regulations;
(15) Storm water, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, non-contact cooling water, sump pump discharges, and unpolluted wastewater, unless specifically authorized by the Superintendent;
(16) Sludges, screenings, or other residues from the pretreatment of industrial wastes;
(17) Medical wastes, except as specifically authorized by the Superintendent in a wastewater discharge permit;
(18) Wastewater causing, alone or in conjunction with other sources, the treatment plant’s effluent to fail a whole effluent toxicity, (WET), test;
(19) Detergents, surface-active agents, or other substances which may cause excessive foaming in the POTW;
(D) Instantaneous flows and loadings which are in excess of the POTWs functional and treatment capacities or are likely to cause overflow conditions.
(E) Pollutants, substances, or wastewater prohibited by this Section shall not be processed or stored in such a manner that they could be discharged to the POTW.
(F) Unpolluted water shall not be discharged through direct or indirect connection to the POTW. Limitations on the amount of unpolluted water that is discharged shall be part of the user’s permit.
(G) Only properly shredded garbage, as defined in § 51.004 of this chapter, may be discharged into the POTW.
(H) The surcharges set forth in this section of the ordinance generally are considered user fees to account for additional treatment costs of discharges at these levels.
(Ord. 06-2017, passed 5-22-2017)