§ 52.02  DEFINITIONS AND ABBREVIATIONS.
   (A)   Definitions. For purposes 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 U.S.C. 1251, et. seq.
      APPROVAL AUTHORITY. The Region 5 Administrator of the United States Environmental Protection Agency or delegated designee thereof.
      AUTHORIZED OR DULY AUTHORIZED REPRESENTATIVE OF THE USER. 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 1 or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiate and direct other comprehensive measures to assure long-term environmental compliance with environmental laws and regulations; can ensure that the necessary systems are established or actions taken to gather complete  and accurate information for individual wastewater discharge permit requirements; and where 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.
         (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.
         (d)   The individuals described in divisions (a) through (c) above may designate a duly 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 Director.
      BEST MANAGEMENT PRACTICES (BMPS). Schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed in Section 2.1 A and B [40 C.F.R. §§ 403.5(a)(1) and (b)]. BMPs include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw materials storage.
      BLOWDOWN. The minimum discharge of recirculating water for the purpose of discharging materials contained in the water, the further buildup of which would cause concentration in amounts exceeding limits established by best engineering practice.
      BOARD. The Board of Public Works of the city. It is the governing body of the publicly owned treatment works. See also CONTROL AUTHORITY.
      BUILDING DRAIN. The part of the plumbing that is the lowest horizontal piping within a building or house that conducts water, wastewater or storm water to a sewer lateral.
      BYPASS.  See INDUSTRIAL PRETREATMENT BYPASS.
      CATEGORICAL INDUSTRIAL USER. An industrial user subject to a categorical pretreatment standard or categorical standard.
      CATEGORICAL PRETREATMENT STANDARDS. National Pretreatment Standards specifying quantities or concentrations of pollutants or pollutant properties which may be discharged or introduced to the POTW by existing or new industrial users in specific industrial subcategories as established by the EPA in accordance with Sections 307(b) and (c) of the Act (33 U.S.C. § 1317) that apply to a specific category of users and that appear in 40 CFR Chapter I, Subchapter N, Parts 405-471.
      CARBONACEOUS BIOCHEMICAL OXYGEN DEMAND OR cBOD5. The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures for five days at 20° centigrade, usually expressed as a concentration.
      CHEMICAL OXYGEN DEMAND (COD). A measure of the oxygen equivalent of that portion of the organic matter in a sample that is susceptible to oxidation by a strong chemical oxidant.
      CITY. The City of Elkhart, Indiana.
      COMBINED SEWER. A sewer designed and constructed to convey sanitary wastewaters (domestic, commercial, or industrial wastewaters) and storm water through a single pipe system to the POTW treatment plant.
      COMMERCIAL USER. A source of wastewater discharging to the POTW from business establishments including, but not limited to, stores, markets, office buildings, restaurants, shopping centers, and which is not an industrial user as defined in this chapter.
      COMPATIBLE POLLUTANTS. Those pollutants that are normally removed by the POTW treatment system such as carbonaceous biochemical oxygen demand, suspended solids, total phosphorus, ammonia nitrogen, and pathogens.
      COMPOSITE SAMPLE. A minimum of 4 samples collected over a time greater than 15 minutes that is representative of a discharge which may be either time or flow proportional.
      CONTROL AUTHORITY. The Board of Public Works of the city.
      DAILY MAXIMUM. The arithmetic average of all effluent samples for a pollutant collected during a calendar day.
      DAILY MAXIMUM LIMIT. The maximum allowable discharge limit of a pollutant during a calendar day. Where daily maximum limits are expressed in units of mass, the daily discharge is the total mass discharged over the course of the day. Where daily maximum limits are expressed in terms of a concentration, the daily discharge is the arithmetic average measurement of the pollutant concentration derived from all measurements taken that day.
      DEMAND MONITORING. Monitoring conducted by the Director in addition to the 2 unscheduled monitoring events required each year.
      DIRECT DISCHARGE. The introduction or addition of any pollutant, or combination of pollutants, into any waters of the State of Indiana from a point source.
      DIRECTOR. The person responsible for supervising the operation of the POTW, or that person's duly authorized representative.
      DISCHARGE. The pouring forth, emission or release of pollutants or wastewater from any source.
      DOMESTIC WASTEWATER. Sanitary wastewater discharged by residential users typically containing less than 250 mg/L of cBOD5 and less than 250 mg/L of TSS. DOMESTIC WASTEWATER does not contain a component of industrial waste or storm water.
      EFFLUENT. The water, together with any wastes that may be present, flowing out of a drain, sewer, receptacle or outlet.
      EFFLUENT LIMITATION. Any restriction established by the control authority or the approval authority on quantities, discharge rates and concentrations of pollutants that are discharged from point sources into the POTW or waters of the state.
      ENVIRONMENTAL PROTECTION AGENCY (EPA). The U.S. Environmental Protection Agency, or where appropriate the term may also be used as a designation for the Administrator or other duly authorized official of said agency.
      EXISTING SOURCE. An industrial user that is not a new source as defined in 40 C.F.R. §403.
      FATS, OILS AND GREASE (FOG). A group of substances including hydrocarbons, fatty acids, soaps, fats, waxes, oils or any other materials that are extracted by a solvent from an acidified sample that are not volatilized during the laboratory test procedures. Oils and greases are more specifically defined by the standard method used for their determination.
      FOOD SERVICE ESTABLISHMENT (FSE). An operation or enterprise that stores, prepares, packages, serves, vends, or otherwise provides food for human consumption. This does not include establishments designated as "pre-packaged food store only" with a "limited food service license" by the Elkhart County Health Department.
      FOUR DAY AVERAGE DISCHARGE. The calculated result of totaling the mass or average concentration of all daily discharges sampled or measured during 4 consecutive sampling days, though not necessarily consecutive calendar days, divided by the number of daily discharges sampled or measured.
      GARBAGE. The animal and vegetable waste resulting from the handling, preparation, cooking, and serving of foods. It is composed largely of putrescible organic matter and its natural moisture.
      GRAB SAMPLE. An individual sample or group of samples collected over a period of time not exceeding 15 minutes.
      INCOMPATIBLE POLLUTANTS. Any pollutants which are not compatible pollutants.
      INDIRECT DISCHARGE. The introduction or addition of any pollutant, or combination of pollutants into a POTW from any non-domestic source.
      INDUSTRIAL PRETREATMENT BYPASS or BYPASS. An intentional diversion of waste streams from any portion of an industrial user's treatment facility.
      INDUSTRIAL USER. A source of industrial waste discharging to the POTW.
      INDUSTRIAL WASTE. Any solid, liquid or gaseous substance or heat energy discharged, permitted to flow into or enter the POTW from an industrial, manufacturing or commercial process or from the development, recovery or processing of any natural resource carried on by any person and shall further mean any waste from an industrial user, but not including sanitary wastewater or storm water.
      INFILTRATION. The groundwater entering the POTW directly or via private sewers, building drains and sewer lateral connected therewith, or entering a sewer, through such means as, but not limited to, defective pipes, pipe joints, connections, or manhole walls.
      INFLOW. Water other than wastewater entering the POTW from sources such as cellars, yard areas, foundation drains, roof drains, drains from springs and swampy areas, stream backflow, manhole areas, cross connections between storm and sanitary sewers, catch basins, cooling towers, geothermal system discharge, storm water, surface runoff and street waters or drainage.
      INSPECTOR. A person authorized by the Director to perform inspection and monitoring duties to determine compliance with this chapter.
      INSTANTANEOUS 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 which, alone or in conjunction with a discharge or discharges from other sources, both:
         (a)   Inhibits or disrupts the POTW, its treatment processes or operations, or its sludge processes, use or disposal; and
         (b)   Therefore is a cause of a violation of any requirement of the POTW's NPDES permit (including an increase in the magnitude or duration of a violation) or of the prevention of sewage sludge use or disposal in compliance with the following statutory provisions and regulations or permits issued thereunder or more stringent state or local regulations):
            1.   Section 405 of the Clean Water Act;
            2.   The Solid Waste Disposal Act (SWDA) (including title II, more commonly referred to as the Resource Conservation and Recovery Act (RCRA), and including state regulations contained in any state sludge management plan prepared pursuant to subtitle D of the SWDA);
            3.   The Clean Air Act;
            4.   The Toxic Substances Control Act; and
            5.   The Marine Protection, Research and Sanctuaries Act.
      LOCAL LIMIT. Specific discharge limits developed and enforced by the control authority upon industrial or commercial users to implement the general and specific discharge prohibitions listed in 40 C.F.R. §§ 403.5(a)(1) and (b).
      MAY. The act referred to is both permissible and approved.
      MEDICAL WASTE. All waste materials generated at health care facilities, such as hospitals, clinics, physician's offices, dental practices, blood banks, and veterinary hospitals/clinics, as well as medical research facilities and laboratories, as listed in 42 U.S. § 6992a.
      MONTHLY AVERAGE. The sum of all daily discharges measured during a calendar month divided by the number of daily discharges measured during that month.
      MONTHLY AVERAGE LIMIT. The highest allowable average of daily discharges over a calendar month, calculated as the sum of all daily discharges measured during a calendar month divided by the number of daily discharges measured during that month.
      NATIONAL PRETREATMENT STANDARD. Any regulation that applies to industrial users and contains pollutant discharge limits promulgated by the EPA in accordance with Section 307(b) and (c) of the Act. This term includes prohibitive discharge limits established pursuant to 40 CFR § 403.5.
      NEW SOURCE.
         (a)    Any building, structure, facility or installation that is discharging or may discharge pollutants, and its construction commenced after the publication of proposed pretreatment standards under Section 307(c) of the Act which will be applicable to the source, if those standards are thereafter promulgated in accordance with Section 307(c) of the Act, provided 1 of the following conditions is met:
            1.   The building, structure, facility or installation is constructed at a site at which no other source is located;
            2.   The building, structure, facility or installation totally replaces the process or production equipment that caused the discharge of pollutants at an existing source;
            3.   The production of wastewater generating processes of the building, structure, facility or installation is substantially independent of an existing source at the same site. In determining whether these processes are substantially independent, the following factors will be considered:
               a.   The extent to which the new facility is integrated with the existing plant; and
               b.   The extent to which the new facility is engaged in the same general type of activity as the existing source.
         (b)   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 (a)2. and (a)3. above but otherwise alters, replaces, or adds to existing process or production equipment.
         (c)   Construction of a NEW SOURCE as defined under this division has commenced if the owner or operator has:
            1.   Begun, or caused to begin, as part of a continuous on-site construction program:
               a.   Any placement, assembly, or installation of facilities or equipment; or
               b.    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; or
            2.   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 under this division.
      NPDES PERMIT. The National Pollutant Discharge Elimination System permit now or hereafter held by the city and setting forth conditions for the discharge of any pollutants or combinations of pollutants.
      NON-CONTACT COOLING WATER. Water used for cooling which does not come into direct contact with any raw material, intermediate product, waste product or finished product and to which the only pollutant added is heat.
      NUISANCE. Any substance, which is injurious to health or offensive to the senses or an obstruction to the free use of property so as to interfere with the comfort or enjoyment of life or property.
      OPERATION AND MAINTENANCE (O & M). All expenses related directly to operating and maintaining, including replacement of, the POTW, as identified in the "Uniform System of Accounts for Wastewater Utilities" or as prescribed by the Indiana State Board of Accounts under the general
headings, Plant Operation and Maintenance, Sewer Operation and Maintenance, Customer Accounts, Administrative and General, Insurance and Taxes (Indiana State Board of Accounts Special Districts Manual Chapter 23).
      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 POTW's NPDES permit (including an increase in the magnitude or duration of a violation).
      PERSON. Any individual, partnership, corporation, association, trust, estate, governmental entity, any other legal entity, or its legal representative, or assign.
      pH. The logarithm (base 10) of the reciprocal of the concentration of hydrogen ions expressed in Standard Units (S.U.).
      POLLUTANT. Means, but is not limited to, any of the following discharged into water: dredged spoil, solid waste, incinerator residue, filter backwash, sewage, wastewater, garbage, sludge, munitions, chemical wastes, toxic wastes, hazardous substances, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal, and agricultural waste.
      PRETREATMENT. 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, discharging or otherwise introducing such pollutants into the POTW. The reduction or alteration can be obtained by physical, chemical or biological processes or any combination thereof, by process changes, or by other means, except dilution, as prohibited by § 52.18.
      PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment imposed on a user, other than a pretreatment standard.
      PRETREATMENT STANDARDS OR STANDARDS.  Prohibited discharges as established in §§ 52.10 and 52.11, national pretreatment standards incorporated by reference in § 52.12 and state pretreatment standards incorporated by reference in § 52.13.
      PRIVATE SEWER. A sewer owned and maintained by the user for the collection and transport of wastewater to the POTW.
      PROHIBITED DISCHARGE STANDARDS or PROHIBITED DISCHARGES. Absolute prohibitions against the discharge of certain substances; these prohibitions appear in §§ 52.10 and 52.11.
      PUBLICLY OWNED TREATMENT WORKS (POTW). A treatment works as defined by Section 212 of the Act, (33 U.S.C. § 1292) owned in this instance by the city. This definition includes any sewers, pipes, and other conveyances conveying wastewater to the POTW treatment plant. The term does not include pipes, sewers or other conveyances not connected to a facility providing treatment or storage. For the purposes of this chapter, POTW shall also include any sewers, pipes or other conveyances that convey wastewater to the POTW from persons outside the city who are, by contract or agreement with the city, users of the city's POTW. The term also means the municipality, as defined in Section 502(4) of the Act, which has jurisdiction over the discharges to and the direct discharges from such a treatment works.
      PUBLIC ENTITY. A political subdivision, including a municipality, a town, a county, a township or sewer district.
      PUBLIC SEWER. A sewer owned and maintained by the city for the collection of wastewater.
      RECEIVING STREAM. The St. Joseph River and its tributaries.
      RESIDENTIAL USER. A source of domestic wastewater or domestic wastewater discharging to the POTW from a premises or building used primarily as a domicile for 1 or more persons such as detached, semi-detached and row houses, mobile homes, apartments or permanent multi-family dwellings. Transit lodging is not considered a Residential User; it is included under the commercial user definition.
      RETAIL FOOD ESTABLISHMENT. An operation that stores, prepares, packages, serves, vends, or otherwise provides food for human consumption, such as a restaurant, a catering operation, a market, a grocery store, a convenience store or an institution.
      SANITARY SEWER. A sewer designed to convey liquid and water-carried wastes from residences, commercial buildings, industrial plants and institutions and to which storm, surface and ground waters are not intentionally allowed to enter.
      SANITARY WASTEWATER. The liquid and water-carried waste from residences, commercial buildings, industrial plants, institutions, and other places that is transported by sewers and is primarily composed of human and household waste. SANITARY WASTEWATER, as received by the POTW, may contain a component of industrial waste.
      SEPTIC TANK. A watertight structure into which sewage is discharged for settling and solids digestion.
      SEVERE PROPERTY DAMAGE. Substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. SEVERE PROPERTY DAMAGE does not mean economic loss caused by delays in production.
      SEWER. A pipe or conduit, which carries wastewater or drainage water.
      SEWER LATERAL. The horizontal piping mat extends from the end of the building drain to the public sewer or other place of disposal.
      SHALL. The act referred to is mandatory.
      SIGNIFICANT INDUSTRIAL USER or SIU.
         (a)   Means either:
            1.   All industrial users subject to pretreatment standards under §§ 52.12 or 52.13; or
            2.   Any other industrial user that:
               a.    Discharges an average of 10,000 gallons per day or more of process wastewater to the POTW. This does not include sanitary wastewater, non-contact cooling water 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;
               c.   Is designated as such by the Director on the basis that the industrial user has a reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement;
               d.   Has wastewater with a cBOD5 or TSS concentration greater than 250 mg/L; or
               e.   Has in its waste stream a toxic or hazardous substance, as defined by federal or state statutes and rules.
         (b)   The Director may, on its own initiative or in response to a petition received from an industrial user, determine that an industrial user is not a significant industrial user if it does not meet the requirements of (a)2. above.
      SIGNIFICANT NONCOMPLIANCE (SNC). The status of an industrial user that has caused or allowed a violation that meets 1 or more of the following criteria:
         (a)   Chronic violations of wastewater discharge limits, defined here as those in which 66% or more of all the measurements taken for the same pollutant parameter taken during a six-month period exceed (by any magnitude) a numeric pretreatment standard or requirement, including instantaneous limits as defined in this section;
         (b)   Technical review criteria (TRC) violations, defined here as those in which 33% or more of wastewater measurements taken for each pollutant parameter during a 6-month period equals or exceeds the product of the numeric pretreatment standard or requirement including instantaneous limits, as defined in this section multiplied by the applicable criteria (1.4 for BOD, TSS, fats, oils and grease, and 1.2 for all other pollutants except pH);
         (c)   Any other violation of a pretreatment standard or requirement as defined by §§ 52.10 through 52.33 (daily maximum, long-term average, instantaneous limit, or narrative standard) that the Director 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.
         (d)   Any discharge of a pollutant that has caused imminent endangerment to human health, welfare, or to the environment or has resulted in the Director's exercise of his suspension of service authority under § 52.06 to halt or prevent such a discharge;
         (e)   Failure to meet, within 90 calendar days after the schedule date, a compliance schedule milestone contained in an individual wastewater discharge permit, or in an enforcement order for starting construction, completing construction, or attaining final compliance;
         (f)   Failure to provide, within 30 calendar days after the due date, required reports such as:
            1.   Baseline monitoring reports;
            2.   90-day compliance reports;
            3.   Periodic self-monitoring reports; and
            4.   Reports on compliance with compliance schedules.
         (g)   Failure to accurately report noncompliance; and
         (h)   Any other violation or group of violations that the Director determines will adversely affect the operation or implementation of the pretreatment program which may include a violation of BMPs.
      SLUG DISCHARGE. Any discharge at a flow rate or concentration, which could cause a violation of the prohibited discharge standards in §§ 52.10 and 52.11. A SLUG DISCHARGE is any discharge of a non-routine, episodic nature, including but not limited to an accidental spill or a non-customary batch discharge, which has a reasonable potential to cause interference or pass through, or in any other way violate the POTW's regulations, local limits or permit conditions.
      SLUDGE. Any solid, semisolid or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility or any other such waste having similar characteristics and effects 42 U.S.C. § 6903.
      STATE. State of Indiana.
      STANDARD INDUSTRIAL CLASSIFICATION (SIC). A classification pursuant to the Standard Industrial Classification Manual issued by the Executive Office of the President, Office of Management and Budget, 1972.
      STANDARD METHODS. An assembly of analytical techniques and descriptions commonly accepted in water and wastewater treatment as listed in 40 C.F.R. § 136 and contained in "Standard Methods for the Examination of Water and Wastewater", published jointly by the American Public Health Association, American Water Works Association and the Water Environment Federation.
      STANDARDS.  See PRETREATMENT STANDARDS.
      STORM SEWER. A sewer designed to transport only storm or surface water and does not lead to a treatment plant.
      STORM WATER. Water resulting from rain, melting or melted snow, hail or sleet.
      STORM WATER CONVEYANCE. Any structural process used for transferring storm water between at least 2 points including, but not limited to, storm sewers, piping, ditches, swales, curbs, gutters, catch basins, channels, storm drains and roadways.
      SURCHARGE. The extra charges for sewer service assessed customers whose wastewater is of such a nature that it imposes upon the POTW a burden greater than that covered by the basic service charge.
      SURVEILLANCE. The ongoing systematic collection and analysis of data.
      SUSPENDED SOLIDS. Solids, which either float on the surface or are suspended in water, wastewater or other liquids, and which are removable by laboratory filtration.
      TOXIC POLLUTANT. Any pollutant or combination of pollutants listed as toxic in regulations promulgated by the Administrator of the Environmental Protection Agency under the provision of CWA 307(a) or other Acts. The Board reserves the right to add additional parameters demonstrated to produce toxic effects, which may or may not be on the aforementioned list.
      TREATMENT PLANT. That portion of the POTW designed to provide treatment to wastewater.
      UPSET. An exceptional incident in which there is unintentional and temporary noncompliance with the effluent limitations of this chapter 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 or inadequate treatment facilities, lack of preventative maintenance, or careless or improper operations.
      USER. A person who discharges any pollutant, wastewater or any other substance into the POTW or storm water conveyance. The term USER includes both the owner and occupant of real estate that is the source of a discharge into the POTW or storm water conveyance.
      USER CHARGE. A charge levied on users of the POTW for the user's proportionate share of the cost of operation and maintenance, including replacement of the POTW.
      UTILITY. The city's wastewater utility.
      WASTE.  Sanitary wastewater and any and all other waste substances, liquid, solid, gaseous, or radioactive, associated with human habitation, or of human or animal origin, or from any producing, processing, manufacturing, or industrial operation of whatever nature, including such waste placed within containers of whatever nature prior to, and for purposes of, disposal.
      WASTEWATER. Liquid or water-carried wastes from residential, commercial, industrial, municipal, agricultural, or other sources.
      WASTEWATER CONSTITUENTS AND CHARACTERISTICS. The chemical, physical, bacteriological and radiological properties, including volume, flow rate and such other properties which serve to define, classify or measure the contents, quality, quantity and strength of wastewater.
      WATERS OF THE STATE.
         (a)   Either:
            1.   The accumulation of water, surface and underground, natural and artificial, public and private; or
            2.   A part of the accumulations of water that are wholly or partially within, flow through, or border upon the state.
         (b)   The term does not include:
            1.   A private pond; or
            2.   An off-stream pond, reservoir, or facility built for reduction or control of pollution or cooling of water before discharge unless the discharge from the pond, reservoir, or facility causes or threatens to cause water pollution.
   (B)   Abbreviations.
      (1)   BMP.  Best management practice.
      (2)   cBOD5. 5-day carbonaceous biochemical oxygen demand.
      (3)   CFR.  Code of Federal Regulations.
      (4)   COD. Chemical oxygen demand.
      (5)   EPA. The U.S. Environmental Protection Agency.
      (6)   FOG. Fats, oils and grease.
      (7)   gpd. Gallons per day.
      (8)   IDEM. The Indiana Department of Environmental Management.
      (9)   L. Liter.
      (10)   mg. Milligrams.
      (11)   mg/L. Milligrams per liter
      (12)   NPDES.  National Pollutant Discharge Elimination System.
      (13)   NH3-N. Ammonia nitrogen.
      (14)   PO4. Total phosphorus.
      (15)   POTW. Publicly owned treatment works.
      (16)   ppm. Parts per million.
      (17)   RCRA. Resource Conservation and Recovery Act.
      (18)   SIC. Standard industrial classification.
      (19)   SIU. Significant industrial user.
      (20)   SNC. Significant non-compliance.
      (21)   S.U. Standard units.
      (22)   TRC.  Technical review criteria.
      (23)   TSS. Total suspended solids.
      (24)   U.S.C. United States Code.
(Ord. 5746, passed 7-1-2019)