(A) No user shall contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation or performance of the town POTW. These general prohibitions apply to all users of a POTW whether or not the user is a significant industrial user or subject to any national, state or local pretreatment standards or requirements or which the town’s or the town’s Directors determines that a user is discharging the wastewater, the town’s Director shall advise the user of the potential impact of the discharge and develop effluent limitations for the discharge to protect the POTW. A user shall not contribute the following substances to any POTW;
(1) Any wastewater having a temperature which will inhibit biological activity in the POTW treatment plant resulting in interference, but in no case wastewater with a temperature at the introduction into the POTW which exceeds 40°C (104°F) unless the POTW treatment plant is designed to accommodate the temperature;
(2) Any waters or wastes which may contain more than 100 parts per million (ppm) by weight of fat, oil or grease, exclusive of soap;
(3) Any liquids, solids or gases which by reason of the 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 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 5% nor any single reading over 10% of the lower explosive limit (LEL) of the meter. Wastewater shall not have a closed cup flashpoint of less than 140°F, using test methods specified in 40 C.F.R. § 261.21. Prohibited 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 town, state or EPA has notified the user is a fire hazard or a hazard to the system;
(4) Solid or viscous substances which may cause obstruction to the flow in a sewer or other interference with the operation of the wastewater treatment facilities such as, but not limited to: floatable oil, garbage with particles greater than one-half-inch in any dimension, animal guts or tissues, paunch manure, bones, hair, hides or fleshing, 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 grinding or polishing wastes;
(5) Any substance which will cause the POTW to violate its NPDES and/or state disposal system permit or the receiving water quality standards;
(6) Any waters or wastes having a stabilized pH lower than six or having other corrosive property capable or causing damage or hazard to structures, equipment and personnel of the sewage works;
(7) Any wastewater containing 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 to exceed the limitation set forth in a Categorical Pretreatment Standard;
(8) 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 § 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 criteria applicable to the sludge management method being used;
(9) Any waters or wastes which, when given normal plant treatment, produce an effluent to the receiving stream which yields a color foreign to the natural color of the stream at a point 250 feet or more below the effluent outlet;
(10) Any pollutants, including oxygen demanding pollutants (BOD and the like) released at a flow/rate and/or pollutant concentration which a user knows or has reason to know will cause Interference to the POTW;
(11) Wastewater which constitutes as slug as defined herein will have a surcharge;
(12) Wastewater with color which causes interference or prevents the POTW from complying with NPDES permit or other state and federal regulations;
(13) Any waters or wastes containing suspended solids of a character and quantity that unusual attention or expense is required to handle the materials at the wastewater treatment plant;
(14) Any noxious or malodorous liquids, gases or solids 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;
(15) Holding tank waste; and
(16) Any wastewater containing any radioactive wastes or isotopes of a half-life or concentration as may exceed limits established by the Superintendent in compliance with applicable state or federal regulations.
(B) The town reserves the right to establish limitations and requirements which are more stringent than those required by state or federal regulations.
(Ord. passed 5-9-2000) Penalty, see § 52.999