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GENERAL SEWER USE REQUIREMENTS
§ 52.015  PROHIBITED DISCHARGE STANDARDS.
   (A)   General prohibitions. No industrial 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 national, state or local pretreatment standards or requirement.
   (B)   Specific prohibitions.
      (1)   No user shall introduce or cause to be introduced into the POTW the following pollutants, substances or wastewater:
         (a)   Pollutants which create a fire or explosive hazard in the municipal wastewater collection and POTW, including, but not limited to, waste streams with a closed-cup flashpoint of less than 140°F (60°C) using the test methods specified in 40 C.F.R. § 261.21;
         (b)   Wastewater having a pH less than 5.0 or more than 11.0, or otherwise causing corrosive structural damage to the POTW or equipment;
         (c)   Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference, but in no case solids greater than three inches or 7.6 centimeter(s) in any dimension;
         (d)   Pollutants, including oxygen demanding pollutants (BOD and the like), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with either the POTW; or any wastewater treatment or sludge process, or which will constitute a hazard to humans or animals;
         (e)   Wastewater having a temperature greater than 104°F (40°C), or which 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);
         (f)   Petroleum oil, nonbiodegadable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through;
         (g)   Pollutants which result in the presence of toxic gases, vapors or fumes within the POTW in a quantity that may cause acute worker health and safety problems;
         (h)   Trucked or hauled pollutants, except at discharge points designated by the town in accordance with § 52.038;
         (i)   Noxious or malodrous liquids, gases, solids or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance, a hazard to life, or to prevent entry into the sewers for maintenance and repair;
         (j)   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 POTW effluent thereby violating the town’s VPDES permit;
         (k)   Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations;
         (1)   Stormwater, surface water, groundwater, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water and unpolluted industrial wastewater, unless specifically authorized by the Wastewater Superintendent;
         (m)   Sludges, screenings or other residues from the pretreatment of industrial wastes;
         (n)   Medical wastes, except as specifically authorized by the Wastewater Superintendent in a wastewater discharge permit;
         (o)   Wastewater causing, alone or in conjunction with other sources, the treatment plant’s effluent to fail a toxicity test;
         (p)   Detergents, surface active agents or other substances which may cause excessive foaming in the POTW;
         (q)   Fats, oils or greases of animal or vegetable origin in concentrations greater than 500 mg/l; and
         (r)   Wastewater causing a reading on an explosion hazard meter at the point of discharge into the POTW, or any point in the POTW, over the lower explosive limit of the meter.
      (2)   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.
      (3)   All floor drains located in process or materials storage areas must discharge to the user’s pretreatment facility before connecting with the POTW.
   (C)   Requirements. This chapter references the significant industrial user’s wastewater discharge permit. The user shall be required to meet all requirements of the town wastewater discharge permit.
(1996 Code, § 168-5)  Penalty, see § 52.999
§ 52.016  NATIONAL CATEGORICAL PRETREATMENT STANDARDS.
   The categorical pretreatment standards found at 40 C.F.R. Chapter I, Subchapter N, parts 405 through 471 are hereby incorporated.
   (A)   Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the Wastewater Superintendent may impose equivalent concentration or mass limits in accordance with 40 C.F.R. § 403.6(c).
   (B)   When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the Wastewater Superintendent shall impose an alternate limit using the combined waste stream formula in 40 C.F.R. § 403.6(e).
   (C)   A user may obtain a variance from a categorical pretreatment standard if the user can prove, pursuant to the procedural and substantive provisions in 40 C.F.R. § 403.13, that factors relating to its discharge are fundamentally different from the factors considered by EPA when developing the categorical pretreatment standard.
   (D)   A user may obtain a net gross adjustment to a categorical standard in accordance with 40 C.F.R. § 403.15.
(1996 Code, § 168-6)  Penalty, see § 52.999
§ 52.017  STATE PRETREATMENT STANDARDS.
   In the event that pretreatment standards are adopted by the state, this chapter shall incorporate the stricter of the standards.
(1996 Code, § 168-7)
§ 52.018  LOCAL LIMITS.
   (A)   The town may apply local limits through issuance of industrial user permits as provided in this chapter.
   (B)   The town may apply local limits based on EPA categorical pretreatment standards, water quality standards or criteria, treatment plant process inhibitions, or sludge disposal standards as necessary to comply with the general prohibitions against pass-through, interference and sludge contamination in 40 C.F.R. part 403 and VR 680-14-01, part VII.
(1996 Code, § 168-8)
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