§ 50.004 DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   ACT or THE ACT. The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251 et seq.
   APPROVAL AUTHORITY. The Regional Administration of U.S. EPA Region V.
   AUTHORIZED REPRESENTATIVE OF THE USER.
      (1)   The following:
         (a)   If the user is a corporation:
            1.   The president, secretary, treasurer or a vice-president of the corporation in charge of a principal business function or any other person who performs similar policy or decision- making functions for the corporation; or
            2.   The manager of one or more manufacturing, production or operation facilities employing more than 250 persons or having gross annual sales or expenditures exceeding $25,000,000 (in second-quarter 1980 dollars), if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.
         (b)   If the user is a partnership or sole proprietorship, a general partner or proprietor, respectively; or
         (c)   If the user is a federal, state or local governmental facility, a director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility or their designee.
      (2)   The individuals described herein may designate another authorized representative if the authorization is in writing, the authorization specifies the individual or position responsible for the overall operation of the facility from which the discharge originates or having overall responsibility for environmental matters for the company, and the written authorization is submitted to the Council.
   BIOCHEMICAL OXYGEN DEMAND or BOD5. The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures for five days at 20°C, usually expressed as a concentration (such as mg/l).
   BYPASS. The intentional diversion of waste streams from any portion of an industrial user’s treatment facility.
   CATEGORICAL PRETREATMENT STANDARD or CATEGORICAL STANDARD. Any regulation containing pollutant discharge limits promulgated by EPA in accordance with § 307(b) and (c) of the Act, 33 USC 1317, which apply to a specific category of users and which appear in 40 CFR Chapter I, Subchapter N, Parts 405 through 471.
   CLEAR WATER FLOW. Groundwater or precipitation related water which enters the sanitary sewer collection system through pipe defects (infiltration) or conduits (inflow).
   CONTROL AUTHORITY. The Town Council of the town.
   COMPOSITE SAMPLING. Method of sampling which weights sample volume with discharge flow rate.
   COUNCIL. The Town Council or any other duly authorized officials acting on its behalf.
   ENVIRONMENTAL PROTECTION AGENCY or EPA. The U.S. Environmental Protection Agency or, where appropriate, the Region V Water Management Division Director or other duly authorized official of the Agency.
   EXISTING SOURCE. Any source of discharge, the construction or operation of which commenced prior to the publication by EPA of proposed categorical pretreatment standards, which will be applicable to the source if the standard is thereafter promulgated in accordance with § 307 of the Act, being 33 USC 1317.
   GRAB SAMPLE. A sample which is taken from a waste stream without regard to the flow in the waste stream and over a period of time not to exceed 15 minutes.
   INDIRECT DISCHARGE or DISCHARGE. The introduction of pollutants into the POTW from any non-domestic source regulated under § 307(b), (c) or (d) of the Act, being 33 USC 1317 et seq.
   INSTANTANEOUS MAXIMUM ALLOWABLE DISCHARGE LIMIT. The maximum concentration of a pollutant allowed to be discharged at any time, determined from the analysis of any discrete or composited sample collected, independent of the industrial flow rate and the duration of the sampling event.
   INTERFERENCE. A discharge that, alone or in conjunction with a discharge or discharges from other sources, does one of the following:
      (1)   Inhibits or disrupts the POTW, its treatment processes or operations, its sludge processes, or its selected sludge disposal methods.
      (2)   Causes a violation of any requirement of the POTW’s NPDES permit, including an increase in the magnitude or duration of a violation.
      (3)   Prevents the use of the POTW’s sewage sludge or its sludge disposal method selected in compliance with the following statutory provisions, regulations, or permits issued thereunder or more stringent state or local regulations:
         (a)   Section 405 of the Clean Water Act (33 USC 1345).
         (b)   The Solid Waste Disposal Act (SWDA) (42 USC 6901), including:
            1.   Title II, more commonly referred to as the Resource Conservation and Recovery Act (RCRA); and
            2.   The rules contained in any sludge management plan prepared pursuant to subtitle D of SWDA (42 USC 6941).
         (c)   The Clean Air Act (42 USC 7401).
         (d)   The Toxic Substances Control Act (15 USC 2601).
   MEDICAL WASTE. Isolation wastes, infectious agents, human blood and blood products, pathological wastes, sharps, body parts, contaminated bedding, surgical wastes, potentially contaminated laboratory wastes and dialysis wastes.
   NEW SOURCE.
      (1)   Any building, structure, facility or installation from which there is (or may be) a
discharge of pollutants, the construction of which commenced after the publication of proposed pretreatment standards under § 307(c) of the Act, being 33 USC 1317, which will be applicable to the source if the standards are thereafter promulgated in accordance with that section, provided that:
         (a)   The building, structure, facility or installation is constructed at a site at which no other source is located;
         (b)   The building, structure, facility or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or
         (c)   The production or wastewater generating processes of the building, structure, facility or installation are substantially independent of an existing source at the same site. In determining whether these are substantially independent, factors such as the extent to which the new facility is integrated with the existing plant, and the extent to which the new facility is engaged in the same general type of activity as the existing source, should be considered.
      (2)   Construction on a site at which an existing source is located results in a modification rather than a new source if the construction does not create a new building, structure, facility or installation meeting the criteria of divisions (1)(b) or (c) above, but otherwise alters, replaces or adds to existing process or production equipment.
      (3)   Construction of a NEW SOURCE has commenced if the owner or operator has:
         (a)   Begun, or caused to begin, as part of a continuous on-site construction program:
            1.   Any placement, assembly or installation of facilities or equipment; or
            2.   Significant site preparation work including clearing, excavation or removal of
existing buildings, structures or facilities which is necessary for the placement, assembly or installation of new source facilities or equipment.
         (b)   Entered into a binding contractual obligation for the purchase of facilities or equipment which are intended to be used in its operation within a reasonable time. Options to purchase or contracts, which can be terminated or modified without substantial loss, and contracts for feasibility, engineering and design studies do not constitute a contractual obligation hereunder.
   NONCONTACT COOLING WATER. Water used for cooling which does not come into direct contact with any raw material, intermediate product, waste product or finished product.
   PASS THROUGH. A discharge which exits the POTW into waters of the United States in quantities or concentrations which, alone or in conjunction with a discharge or discharges from other sources, is a cause of a violation of any requirement of the town’s NPDES permit (IN0024392), including an increase in the magnitude or duration of a violation.
   PERSON. Any individual, partnership, copartnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity or any other legal entity; or their legal representatives, agents or assigns. This definition includes all federal, state and local governmental entities.
   pH. A measure of the acidity or alkalinity of a solution, expressed in standard units.
   POLLUTANT. Dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, sewage sludge, munitions, medical wastes, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, municipal, agricultural and industrial wastes and certain characteristics of wastewater (such as pH, temperature, TSS, turbidity, color, BOD5, COD, toxicity or odor).
   PRETREATMENT.
      (1)   The reduction of the amount of pollutants, the elimination of pollutants or the alteration of the nature of pollutant properties in wastewater prior to, or in lieu of, introducing the pollutants into the POTW.
      (2)   This reduction or alteration can be obtained by physical, chemical or biological processes; by process changes; or by other means, except by diluting the concentration of the pollutants unless allowed by an applicable pretreatment standard.
   PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment imposed on a user, other than a pretreatment standard.
   PRETREATMENT STANDARDS or STANDARDS. Prohibited discharge standards, categorical pretreatment standards and local limits.
   PROHIBITED DISCHARGE STANDARDS or PROHIBITED DISCHARGES. Absolute prohibitions against the discharge of certain substances; these prohibitions appear in § 50.020.
   PUBLICLY-OWNED TREATMENT WORKS or POTW. As defined by § 212 of the Act, 33 USC 1292, which is owned by the town. This definition includes any devices or systems used in the collection, storage, treatment, recycling and reclamation of sewage or industrial wastes of a liquid nature and any conveyances which convey wastewater to a treatment plant.
   SEPTIC TANK WASTE. Any sewage from holding tanks such as vessels, chemical toilets, campers, trailers and septic tanks.
   SEWAGE. Human excrement and gray water (household showers, dishwashing operations and the like).
   SIGNIFICANT INDUSTRIAL USER or SIU.
      (1)   A user subject to categorical pretreatment standards; or
      (2)   A user that:
         (a)   Discharges an average of 25,000 gpd or more of process wastewater to the POTW, excluding sanitary, noncontact cooling and boiler blowdown wastewater;
         (b)   Contributes a process waste stream which makes up 5% or more of the average dry weather hydraulic or organic capacity of the POTW treatment plant; or
         (c)   Is designated as such by the Council on the basis that it has a reasonable potential for adversely affecting the POTW’s operation or for violating any pretreatment standard or requirement.
      (3)   Upon a finding that a user meeting the criteria in division (2) above has no reasonable potential for adversely affecting the POTW’s operation or for violating any pretreatment standard or requirement, the Council may, at any time, on its own initiative or in response to a petition received from a user, and in accordance with procedures in 40 CFR 403.8(f)(6), determine that such user should not be considered a significant industrial user.
   SIGNIFICANT NONCOMPLIANCE or SNC. The status of an industrial user that has caused or allowed a violation that meets one or more of the following criteria:
      (1)   Chronic violations of wastewater discharge limits, defined as those in which 66% or more of all of the measurements taken during a six-month period exceed, by any magnitude, a numeric pretreatment standard or requirement, including instantaneous limits, as defined by 40 CFR 403.3(l).
      (2)   Technical review criteria (TRC) violations, defined as those in which 33% or more of all of the measurements for each pollutant parameter taken during a six-month period equal or exceed the product of the numeric pretreatment standard or requirement, including instantaneous limits, as defined by 40 CFR 403.3(l), multiplied by the applicable TRC (TRC equals 1.4 for biochemical oxygen demand, total suspended solids, fats, oil, and grease and 1.2 for all other pollutants except pH).
      (3)   Any other violation of a pretreatment standard or requirement as defined by 40 CFR 403.3(l), such as daily maximum, long-term average, instantaneous limit, or narrative standard that the POTW determines has caused, alone or in combination with other discharges, interference or pass through, including endangering the health of POTW personnel or the general public.
      (4)   Any discharge of a pollutant that has:
         (a)   Caused imminent endangerment to human health, welfare, or the environment; or
         (b)   Resulted in the POTW’s exercise of its emergency authority under 327 IAC 5-19-3(1)(G) to halt or prevent such a discharge.
      (5)   Failure to meet, within 90 days after the schedule date, a compliance schedule milestone contained in a local control mechanism or enforcement order for:
         (a)   Starting construction;
         (b)   Completing construction; or
         (c)   Attaining final compliance.
      (6)   Failure to provide, within 45 days after the due date, required reports, such as the following:
         (a)   Baseline monitoring reports;
         (b)   Ninety-day compliance reports;
         (c)   Periodic self-monitoring reports; or
         (d)   Reports on compliance with compliance schedules.
      (7)   Failure to accurately report noncompliance.
      (8)   Any other violation or group of violations, which may include a violation of BMPs, that the POTW determines will adversely affect the operation or implementation of the approved POTW pretreatment program.
   SLUG LOAD or SLUG. Any discharge at a flow rate or concentration which could cause a violation of the prohibited discharge standards in § 50.020.
   STANDARD INDUSTRIAL CLASSIFICATION CODE or SIC. A classification pursuant to the Standard Industrial Classification Manual issued by the United States Office of Management and Budget.
   STORMWATER. Any flow occurring during or following any form of natural precipitation and resulting from precipitation, including snowmelt.
   SUSPENDED SOLIDS. The total suspended matter that floats on the surface of, or is suspended in, water, wastewater or other liquid and which is removable by laboratory filtering.
   TOWN. The town, under the jurisdiction of the Town Council.
   TOWN MANAGER. The person designated by the Town Council who is charged with certain duties and responsibilities by this chapter, or a duly authorized representative.
   UPSET. An exceptional incident in which there is an unintentional incident and temporary noncompliance with categorical pretreatment standards because of factors beyond the reasonable control of the industrial user. An UPSET does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, lack of preventive maintenance or careless or improper operation.
   USER or INDUSTRIAL USER. A source of discharge to the municipal sewer system.
   WASTEWATER. Liquid and water-carried industrial wastes and sewage from residential dwellings, commercial buildings, industrial and manufacturing facilities and institutions, whether treated or untreated, which are contributed to the POTW.
   WASTEWATER TREATMENT PLANT or TREATMENT PLANT. The portion of the POTW which is designed to provide treatment of municipal sewage and industrial waste.
(Ord. 14-2000, passed 8-7-00; Am. Ord. 16-2012, passed 6-18-12; Am. Ord. 1-2013, passed 3-4-13; Am. Ord. 2-2013, passed 3-4-13)