§ 51.002 DEFINITIONS.
   (A)   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, Pub. Law No. 100-4, also known as the Clean Water Act of 1977, as amended, 33 U.S.C. §§ 1251 et seq. (Pub. Law No. 95-217); as well as any guidelines, limitations and standards promulgated by the Environmental Protection Agency pursuant to the Act.
      APPLICABLE PRETREATMENT STANDARD. Any pretreatment limit or prohibitive standard (federal and/or local) contained in this chapter deemed to be the most restrictive with which non-domestic users will be required to comply.
      APPROVAL AUTHORITY. The Commissioner of the Indiana Department of Environmental Management or the Regional Administrator of Region v. of the U.S. EPA.
      AVERAGE MONTHLY DISCHARGE LIMITATION. 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.
      AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER. An authorized representative of an industrial user may be:
         (a)   A principal executive officer of at least the level of Vice-President, if the industrial user is a corporation;
         (b)   A general partner or proprietor if the industrial user is a partnership or proprietorship, respectively; and
         (c)   A duly authorized representative of the individual designated above if such representative is responsible for the overall operation of the facilities from which the indirect discharge originates.
      BENEFICIAL USES. These uses include, but are not limited to domestic, municipal, agricultural and industrial use, power generation, recreation, aesthetic enjoyment, navigation and the preservation and enhancement of fish, wildlife and other aquatic resources or reserves, and other uses, both tangible or intangible, as specified by state or federal law.
      BILLABLE FLOW. The total number of gallons utilized to determine the unit cost for billing for sewage work services.
(Ord. 4288, passed 12-27-1976)
      BOARD OF COMMISSIONERS. The Board of Commissioners for the City Sanitary District.
      BUILDING (OR HOUSE) DRAIN. The lowest horizontal piping of building drainage system which receives the discharge from waste and other drainage pipes inside the walls of the building and conveys it to a point approximately 5 feet outside the foundation wall of the building.
(Ord. 4290, passed 12-27-1976)
      BUILDING DRAIN - SANITARY. A building drain which conveys sanitary or industrial sewage only.
      BUILDING DRAIN - STORM. A building drain which conveys storm water or other clear water drainage, but no wastewater.
      BUILDING (OR HOUSE) LATERAL SEWER. The extension from the building drain to the sewage system or other place of disposal.
      BUILDING SEWER - SANITARY. A building sewer which conveys sanitary or industrial sewage only.
      BUILDING SEWER - STORM. A building sewer which conveys storm water or other clean water drainage, but no sanitary or industrial sewage.
      BYPASS. The intentional diversion of wastestreams from any portion of an industrial user’s treatment facility.
      CARBONACEOUS BIOCHEMICAL OXYGEN DEMAND (CBOD). Of sewage, sewage effluent, polluted waters or industrial wastes shall mean the quantity of dissolved oxygen in milligrams per liter required during stabilization of the decomposable organic matter by aerobic biochemical action under standard laboratory procedures for 5 days at 20°C. The laboratory determinations shall be made in accordance with procedures set forth in Title 40 C.F.R. part 136.
      CAPITAL COSTS. All reasonable and necessary costs and expenses incurred by the district in planning, designing, financing and constructing the sewage works improvements, in accordance with contract 49, including, but not limited to cost and expenses for obtaining necessary permits, licenses, approvals and grants for design and construction, fees for legal and consulting services, and acquisition.
(Ord. 4288, passed 12-27-1976)
      CATEGORICAL STANDARDS. National Categorical Pretreatment Standards published by the U.S. Environmental Protection Agency in the Federal Register. (Title 40 C.F.R. Chapter I, Subpart N, parts 401–471)
      CHEMICAL OXYGEN DEMAND or C.O.D. Of sewage, sewage effluent, polluted waters or industrial wastes is 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. The laboratory determination shall be made in accordance with procedures set forth Title 40 C.F.R. part 136.
      CITY ENGINEER. The City Engineer of the city.
(Ord. 4290, passed 12-27-1976)
      COMMERCIAL USER. A non-residential, commercial or industrial user which may discharge substances other than sanitary sewage to the sewage system. This may include restaurants and other food preparation businesses, laundry and dry cleaning establishments, beauty and barber shops, small machine and automobile repair shops, product packaging or repackaging plants and other industrial businesses not meeting the criteria for major contributor or minor contributor as defined herein.
      COMPATIBLE POLLUTANTS. Carbonaceous biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, nitrogen and phosphorus compounds, plus additional pollutants if the treatment works was designed to treat such pollutants, and in fact does remove such pollutants to a “substantial degree.” The term “substantial degree” is not subject to precise definition but generally contemplates removals in the order of 80% or greater. Minor incidental removals in the order of 10 to 30% are not considered substantial. Examples of the additional pollutants which may be compatible include:
         (a)   Chemical oxygen demand;
         (b)   Total organic carbon; and
         (c)   Fats, oils and greases of animal or vegetable origin (except as prohibited where these materials would interfere with the operation of the treatment works.)
      COMPOSITE SAMPLE. A composite sample should contain a minimum of 8 discrete samples taken at equal time intervals over the compositing period or proportional to the flow rate over the compositing period. More than the minimum number of discrete samples will be required where the wastewater loading is highly variable.
      DAILY DISCHARGE. Discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling.
      DEBT SERVICE. The principal and interest necessary to pay bonded indebtedness.
(Ord. 4289, passed 12-27-1976)
      DEPARTMENT. The city’s Sanitary District Wastewater Treatment Plant.
      DISTRICT. The city’s Sanitary District.
      DISTRICT MANAGER. The District Manager of the city’s Sanitary District.
      EASEMENT. An acquired legal right of the specific use of land owned by others.
      EFFLUENT. Water, together with any wastes that may be present, flowing out of a drain, sewer, receptacle or outlet.
      ENVIRONMENTAL PROTECTION AGENCY or U.S. 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 the agency.
      FECAL COLIFORM. Any of a number of organisms common to the intestinal tract of man and animals, whose presence in sanitary sewage is an indicator of fecal pollution.
      FLOATABLE OIL. Oil, fat, or grease in a physical state such that will separate by gravity from wastewater by treatment in an approved pretreatment facility.
      FLOW. The quantity of billable flow expressed in gallons or cubic feet per 24 hours.
(Ord. 4289, passed 12-27-1976)
      GARBAGE. Any solids, including wastes from the preparation, processing, cooking or dispensing of food and from handling, storage or sale of produce.
(Ord. 4290, passed 12-27-1976)
      GENERAL MUNICIPAL FLOW. The total sewage flow discharged to the sewage works, minus the flows from industrial users, or other municipalities, and contract users. GENERAL MUNICIPAL FLOW includes flow from domestic users, commercial users, institutional users and governmental users. GENERAL MUNICIPAL FLOW, based on the design of the sewage treatment facilities, is also defined as flows containing 5-day BOD concentrations no greater than 220 mg/l and suspended solids in concentrations no greater than 260 mg/l.
(Ord. 4289, passed 12-27-1976)
      GREASE AND OIL. A group of substances including hydrocarbons, fatty acids, soaps, fats, waxes, oils or any other material that is extracted by a solvent from an acidified sample and that is not volatilized during the laboratory test procedures. GREASES AND OILS are defined by the method of their determination in accordance with Title 40 C.F.R. part 136.
      GREASE AND OIL OF ANIMAL AND VEGETABLE ORIGIN. Substances of biodegradable nature such as those which are discharged by meatpacking vegetable oil and fat industries, food processors, canneries or restaurants.
      GREASE AND OIL OF MINERAL ORIGIN. Substances that are less readily biodegradable than grease and oil of animal or vegetable origin, and are derived from a petroleum source. Such substances include machinery lubricating oils and gasoline station wastes.
      GROUND (SHREDDED) GARBAGE. Garbage that is shredded to such a degree that all particles will be carried freely in suspension under the conditions normally prevailing in the sewage system, with no particle being greater than 1/2 inch in dimension.
      GRAB SAMPLE. A sample which is taken from a waste stream on a 1-time basis with no regard to the flow in the waste stream and without consideration of time.
      HAZARDOUS WASTE. Waste is regulated as hazardous under federal law if:
         (a)   It exhibits one or more of the following four characteristics: ignitability, corrosivity, reactivity and toxicity (based on EPA extraction procedures); it is considered a characteristic waste under RCRA; or
         (b)   It (or any part of it) is listed in Title 40 C.F.R. §§ 261.31 through 261.33; it is commonly called a listed waste in RCRA regulations.
      HOLDING TANK WASTE. Any waste from holding tanks, such as chemical toilets, campers, trailers, septic tanks, vacuum pump trucks and the like.
      IMMEDIATE. Within 5 minutes of discovery.
      INCOMPATIBLE POLLUTANT. Any pollutant that is not defined as a compatible pollutant, including non- biodegradable dissolved solids, and further defined in Title 40 C.F.R. part 403.
      INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT or IDEM. The State of Indiana Agency, which together with U.S. EPA has the responsibility to regulate the activities of the city’s Sanitary District.
      INDUSTRIAL COST RECOVERY FUND. The cash fund through which the City Controller shall administer all recovered amounts.
(Ord. 4288, passed 12-27-1976)
      INDUSTRIAL PLANT. Any plant for manufacturing or processing regardless of whether owned or operated by a corporation, partnership or individual. Each separate INDUSTRIAL PLANT will be considered and assessed individually even though a company may operate 2 or more INDUSTRIAL PLANTS within the sanitary district.
(Ord. 4290, passed 12-27-1976)
      INDUSTRIAL USER. Any industrial or commercial establishment manufacturing or processing facility that discharges industrial waste to a publicly owned treatment works.
      INDUSTRIAL WASTES. Any solids, liquid or gaseous substance or form of energy discharged, permitted to flow or escape from an industrial, manufacturing, commercial or business process or from the development, recovery or processing of any natural resource carried on by a person and shall further mean any waste from an industrial user.
(Ord. 4290, passed 12-27-1976)
      INDUSTRIAL WASTE PERMIT. A permit to deposit or discharge industrial waste into any sanitary sewer as issued by the POTW.
      INFILTRATION. The water entering a sewer system, including sewer service connections, from the ground, through such means as, but not limited to defective pipes, pipe joints, connections or manhole walls.
      INFILTRATION/INFLOW. The total quantity of water from both infiltration and inflow without distinguishing the source.
      INFLOW. The water discharged into a sewer system, including service connections from such sources as, but not limited to, roof leaders, cellar, yard and area drains, foundation drains, cistern overflows, cooling water discharges, drains from springs and swampy areas, manhole covers, cross-connections from storm sewers and combined sewers, catch basins, storm waters, surface run-off, street wash waters or drainage. INFLOW does not include, and is distinguished from infiltration.
      INFLUENT. The water, together with any wastes that may be present, flowing into a drain, sewer, receptacle or outlet.
      INSPECTOR. A duly authorized agent of the District bearing proper credentials and identification, who shall be permitted to enter all properties for the purpose of inspection, observation, measurement, sampling and testing in accordance with the provisions of this chapter.
      INTERFERENCE. The inhibition or disruption of the POTW, its treatment processes or operation, or its sludge processes, use or disposal which is the 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): § 405 of the Clean Water Act, 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), the Clean Air Act, the Toxic Substances Control Act, and the Marine Protection, Research and Sanctuaries Act.
      LAND APPLICATION. The process of disposing of solid, liquid or composted sewage sludge on land as defined and regulated by I.A.C. Title 327, Rule 6 or Federal Regulations.
      LOAD. Quantities of sewage characteristics such as BOD, SS or other constituents as expressed in milligrams per liter (mg/l) or pounds per 24 hours.
(Ord. 4289, passed 12-27-1976)
      MAJOR CONTRIBUTOR. An industrial user that:
         (a)   Has a flow of more than 25,000 gallons per average workday;
         (b)   Has in its waste a toxic pollutant in toxic amounts as defined in § 307 of the Federal Act;
         (c)   Has a flow greater than 5% of the flow carried by the receiving municipal systems’ average dry weather hydraulic or organic capacity;
         (d)   Has in its wastes toxic pollutants as defined pursuant to state statutes and rules;
         (e)   Is found by the city’s Sanitary District, IDEM or the U.S. Environmental Protection Agency (EPA) to have an impact, either singly or in combination with other contributing industries, on the wastewater treatment system, the quality of sludge, the system’s effluent quality or air emissions generated by the system; or
         (f)   Any industrial user subject to national categorical pretreatment standards.
      MINOR CONTRIBUTOR. A non-major contributor that:
         (a)   Has potential for discharging pollutants that could violate specific local ordinance limits; or
         (b)   Has potential for accidental spill of slug discharges of pollutants to the sewage system.
      MAXIMUM DAILY DISCHARGE LIMITATIONS. Highest allowable daily discharge.
      NATURAL OUTLET. Any outlet into a watercourse, pond, lake or other body of surface or ground water.
(Ord. 4290, passed 12-27-1976)
      NATIONAL CATEGORICAL PRE-TREATMENT STANDARD or PRETREATMENT STANDARD. Any regulations containing pollutant discharge limits promulgated by the U.S. EPA in accordance with § 307 (b) and (c) of the Act, which applies to industrial users. This term includes prohibitive discharge limits established pursuant to Title 40 C.F.R. § 403.5.
      NATIONAL PROHIBITIVE DISCHARGE STANDARD or PROHIBITIVE DISCHARGE STANDARD. Any discharge prohibition contained in Title 40 C.R.F. § 403.5 including specific prohibitions or local pretreatment limits developed by a POTW.
      NEW SOURCE. Any building, structure, facility or installation of which the construction commenced after the publication of proposed pretreatment standards under § 307(c) (33 U.S.C. § 1317) which will be applicable to the source if the standards are thereafter promulgated in accordance with that section provided that the construction is a site at which no other source is located; or the process or production equipment that causes the discharge of pollutants at an existing source is totally replaced; or the production or wastewater generating processes are substantially independent of an existing source at the same site.
      NONSIGNIFICANT VIOLATION. A violation which is isolated or infrequent; has no known effects or damage; has no known evidence of negligence or intent; or is due to an act of God.
      NPDES PERMIT. National Pollutant Discharge Elimination System issued to a POTW setting conditions for the discharge of any pollutant or combination of pollutants to the navigable waters of the United States pursuant to § 402 of the Act.
      NUISANCE. Anything 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. The associated costs of manpower, energy, materials and chemicals to produce a wastewater that will meet effluent requirements and to keep equipment functioning at satisfactory efficiencies.
(Ord. 4289, passed 12-27-1976)
      PASS THROUGH. The discharge of pollutants by an industrial user through the POTW into navigable waters in quantities or concentrations which are a cause of, or a violation of any requirements of the POTW’s NPDES permit (including an increase in the magnitude or duration of violation) and as defined in Title 40 C.F.R. part 403.
      PERSON. Any and all persons, natural or artificial, including any individual, firm, company, municipal or private corporation, partnership, co- partnership, joint stock company, trust estate, association, society, institution, enterprise, governmental agency, the State of Indiana, the United States of America or other legal entity, or their legal representative, agents or assigns. The masculine gender shall include the feminine, the singular shall include the plural where indicated by the context.
      pH. The logarithm (to the base of 10) of the reciprocal of the hydrogen ion concentration of a solution expressed in gram atoms per liter of solution.
      POLLUTION. An alteration of quality of waters of the state by waste to a degree which unreasonably affects such waters for beneficial uses or facilities which serve such beneficial uses. The man-made or man-induced alteration of the chemical, physical biological and radiological integrity of water.
      POLLUTANT. Any dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munition, chemical wastes, biological materials, radioactive materials, heat, wrecked or discharged equipment, rock, sand, cellar dirt and industrial municipal and agricultural waste discharged into water.
      PREMISES. A parcel of real estate including any single improvement thereon which is determined by the city’s Sanitary District to be a single user for purposes of receiving, using and payment for service. Any additional improvement on the same parcel of real estate which is determined by the city’s Sanitary District to be a user shall be separately connected to the sewer for the purpose of receiving, using and payment for service.
      PRETREATMENT. The reduction of the amount of pollutants, the elimination of pollutants or the alteration of the nature of pollutant properties in wastewater to a less harmful state 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 process, process changes or by other means, except as prohibited by § 51.025.
      PRETREATMENT PROGRAM COORDINATOR. Pretreatment Coordinator for the city’s Sanitary District.
      PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment other than a national pretreatment standard imposed on an industrial user.
      PROPER OPERATION AND MAINTENANCE. Procedures executed in a prudent, cost-effective and workmanlike manner which achieve the highest and/or required effluent quality of industrial discharge attainable in conformance with the best available technology and practices. PROPER OPERATION AND MAINTENANCE REQUIREMENTS include avoidance of operational error, adherence to manual instruction, preventive maintenance, avoidance of careless or improper operation, neat and accurate sampling, analysis and record retention; storage of process chemical, lubricants, solvents and the like; in a safe and organized manner, avoidance of accidental spillage, keeping operating logs, and any other activities which produce the desired effluent quality.
      PUBLICLY OWNED TREATMENT WORKS or POTW. A treatment works as defined by § 212 of the Act, which is owned in this instance by the District. This definition includes any sewers that convey wastewater to the POTW treatment plant, but does not include pipes, sewers or other conveyances not connected to a facility providing treatment. For the purposes of this chapter, POTW shall also include any sewers that convey wastewaters to the POTW from persons outside the city who are, by contract or agreement with the District, users of the District’s POTW, also known as SEWAGE WORKS. The term also means the municipality (control authority) as defined in § 502(4) of the Act, which has jurisdiction over the indirect discharges to and the discharges from such a treatment works.
      POTW TREATMENT PLANT. That portion of the POTW designed to provide treatment of wastewater.
      RECEIVING STREAM. The course, stream or body of water receiving the wastes or treated effluents from wastewater treatment facilities.
      RECOVERED AMOUNTS. The funds collected from industrial cost recovery charges.
(Ord. 4290, passed 12-27-1976)
      REPLACEMENT. Expenditures for obtaining and installing equipment, accessories or appurtenances which are necessary during the service life of the treatment works to maintain the capacity and performance for which these works were designed and constructed.
(Ord. 4289, passed 12-27-1976)
      RETAINED AMOUNTS. Fifty percent of recovered amounts.
(Ord. 4288, passed 12-27-1976)
      SANITARY DISTRICT OF HAMMOND. The municipal corporation constituted by authority of the original Sanitary District Act of 1917 of the State of Indiana. The SANITARY DISTRICT OF HAMMOND came into being in 1938, after the City Council, meeting on October 13, 1938, adopted a creating ordinance, which was approved by the Mayor on October 20, 1938, and subsequently by mutual agreement included the Town of Munster.
(Ord. 4290, passed 12-27-1976)
      SANITARY SEWAGE. The waste from water closets, urinals, sinks, lavatories, bathtubs, basement drains, household laundries, garage floor drains, bars, soda fountains, cuspidors, refrigerator drips, drinking fountains, stable floor drains and all other water-carried waste except industrial wastes.
      SEVERE PROPERTY DAMAGE. Any physical damage to property, or damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. PROPERTY DAMAGE does not mean economic loss caused by delays in production.
      SEWAGE WORKS. Sewers, wastewater treatment plants, sewage systems and any associated structures or equipment. Also known as POTW.
(Ord. 4290, passed 12-27-1976)
      SEWER. Pipe, conduit or device laid for carrying wastewater or other liquids.
(Ord. 4288, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
         (a)   COMBINED SEWER. A sewer that carries both storm, surface, ground water runoff and wastewater.
         (b)   PUBLIC SEWER. A sewer that all the owners of abutting property have equal rights to and which are controlled by public authority including the following elements:
            1.   COLLECTION SYSTEM. A sewer whose primary purpose is to collect wastewaters from individual point source discharges.
            2.   INTERCEPTOR SEWER. A sewer whose primary purpose is to transport wastewater from collector sewers to a treatment facility.
            3.   FORCE MAIN. A pipe in which wastewater is carried under pressure.
            4.   PUMPING STATION. A station positioned in the public sewage system at which wastewater is pushed to a higher level.
         (c)   SANITARY SEWER. Sewer that carries wastewater and to which storm surface and ground waters and unpolluted industrial wastewater are not intentionally admitted.
(Ord. 4290, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
         (d)   STORM SEWER. A sewer that carries storm, surface and ground water drainage but excludes wastewater.
(Ord. 4288, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
      SEWAGE SYSTEM. The network of publicly owned sewers and appurtenances used for collecting, transporting and pumping wastewater to the wastewater treatment plant.
(Ord. 4290, passed 12-27-1976)
      SIGNIFICANT INDUSTRIAL USER. Any industrial user subject to National Categorical Pretreatment Standards of any industrial user of the city’s Sanitary District wastewater disposal system who has a discharge flow of 25,000 gallons or more of process wastewater (excluding sanitary, noncontact cooling and boiler blowdown wastewaters) per average work day; or has a flow greater than 5% or more of the dry weather hydraulic or organic capacity of the flow in the city’s Sanitary District wastewater treatment system; or has in its wastes toxic pollutants as defined pursuant to § 307 of the Federal Water Pollution Control Act or state law, regulation or city ordinance; or is found by the District or the state to have an impact, either alone or in combination with other contributing industries, on the wastewater treatment system, the quality of sludge, the POTW’s effluent discharge quality, or the air emissions generated by the system.
(Ord. 4288, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
      SIGNIFICANT NONCOMPLIANCE. A violation which:
         (a)   Occurs in 66% or more of the samples taken over a 6-month period (any magnitude);
         (b)   Exceeds the Technical Review Criteria (TRC) for the same discharge limit in 33% or more of the samples taken over a 6-month period (TRC = 1.4 (40% exceedance) for CBOD, TSS, fats, oil and grease) (TRC = 1.2 (20% exceedance) for all other pollutants except pH;
         (c)   Causes, alone or combination with other discharges, interference or pass through, including endangering POTW personnel or the public;
         (d)   Endangers human health or the environment, or results in the POTW’s exercise of its emergency powers;
         (e)   A delay in meeting a compliance schedule milestone (failure to begin or complete construction, or attain final compliance) by 90 days or more;
         (f)   Failure to report noncompliance;
         (g)   Any other significant violation(s); and
         (h)   Failure to submit any required report within 30 days of the due date.
      SIGNIFICANT VIOLATION. A violation which:
         (a)   Is continuous or frequent;
         (b)   Results in known environmental or district plant damage;
         (c)   Was considered “nonsignificant” and has remained uncorrected for 30 days or more;
         (d)   Will result in other violations;
         (e)   Has no good or valid cause; or
         (f)   Has evidence of negligence or intent.
      SLUDGE. Any solid, semi-solid 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 waste having similar characteristics and effects as defined in standards issued under §§ 402 and 405 of the Federal Act in the applicable requirements under §§ 3001, 3004 and 4004 of the Solid Waste Disposal Act and Title 329 of the Indiana Administrative Code.
      SLUG. Any discharge of water or wastewater at a rate or in a concentration that is released in a single extraordinary discharge outside of normal operation and which adversely affects the sewage works.
(Ord. 4288, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
      STANDARD INDUSTRIAL CLASSIFICATION. A classification pursuant to the Standard Industrial Classification Manual issued by the Executive Office of the President, Office of Management, and Budget, latest edition.
      STANDARD METHODS. The laboratory procedures set forth in the latest edition, at the time of analysis of the most current edition of STANDARD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER, prepared and published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
      STATE. State of Indiana.
      STORM WATER. Any flow occurring during or following any form of natural precipitation and resulting thereof.
      SUPERINTENDENT. Shall mean Superintendent, Director of Operations or certified-operator in responsible charge of the city’s Sanitary District, or his or her designee.
(Ord. 4290, passed 12-27-1976)
      SEWER MAINTENANCE. Administrative head of sewer maintenance.
      SURCHARGE. A charge for services in addition to the basic service charge.
      SURFACTANTS or METHYLENE-BLUE ACTIVE SUBSTANCE. Large organic molecules that are slightly soluble in water and that may cause foaming in the wastewater treatment plant and in the receiving stream. SURFACTANTS change the surface properties of liquids.
      SUSPENDED SOLIDS. Solids which either float on the surfact or are in suspension in water, sewage or other liquid and which are removable by laboratory filtration. Their concentration shall be expressed in milligrams per liter. Quantitative determination shall be made in accordance with procedures set forth in Title 40 C.F.R. part 136.
      TOTAL SUSPENDED SOLIDS. The total suspended matter that floats on the surface of, or is suspended in water, wastewater or other liquids, and which is removable by laboratory filtering.
      TOXIC AMOUNT. Concentrations of any pollutant or combination of pollutants which, upon exposure to or assimilation into any organism will cause adverse effects such as cancer, genetic mutations and physiological manifestations, as defined in standards issued pursuant to the Clean Water Act.
      TOXICANT. A substance that is known as a carcinogen, a mutagen or a teratogen and substances present in industrial discharges with known toxic effects on human and aquatic life. Also, called TOXIC POLLUTANT.
      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 C.W.A. § 307(a), any other Acts, the largest edition of the Condensed Chemical Dictionary, the latest edition of Dangerous Properties of Industrial Materials, or the Toxic Material Safety Data Sheets.
      UNPOLLUTED WATER. Water of quality equal to or better than the effluent criteria in effect, or water that would not cause violation of receiving water quality standards and would not be benefited by discharge to sanitary sewers and wastewater treatment facilities provided.
      UNUSUAL MATERIAL or UNUSUAL CONCENTRATION. Other than the normal concentration or quality of discharge concentrations accepted by the Sanitary District.
(Ord. 4290, passed 12-27-1976)
      UPSET. An exceptional incident in which a discharge unintentionally and temporarily is in a state of non-compliance with the standards set forth in this chapter due to factors beyond the reasonable control of the discharger, but upset does not include non-compliance to the extent caused by improperly designed pretreatment facilities, lack of preventive maintenance, or careless or improper operation thereof.
      USER. Any person that discharges, causes or permits the discharge of wastewater into the sewage system.
(Ord. 4288, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
         (a)   COMMERCIAL USER. All users of the system classified as industrial users in the Standard Industrial Classification Manual, 1972, United States Office of Management and Budget, as amended and supplemented, under divisions C, F, G, H and K and under divisions A, B, D, E and I, but who are excluded from the definition for the purposes of this chapter because they discharge primarily segregated domestic wastes, or wastes from sanitary conveniences, except that the classification shall not include exempted users who are otherwise classified in this chapter as domestic users, governmental users, or institutional users.
         (b)   CONTRACT USER. Any user who has a written contract with the district to use the sewage works.
         (c)   DOMESTIC USER. Those establish- ments of which its related occupations, if any, are usually considered as domestic service and whose discharge consists solely of sanitary wastes.
         (d)   GENERAL MUNICIPAL USER. Any user discharging sewage to the general municipal flow other than industrial users, municipalities and other contract users. This category of user includes as subcategories the following users.
            1.   Domestic;
            2.   Commercial;
            3.   Institutional; and
            4.   Governmental users, which are not contract users.
         (e)   GOVERNMENTAL USER. Those establishments whose function is the administration or execution of governmental programs as well as the office of executives, legislative bodies and agencies which provide general support services for government.
(Ord. 4289, passed 12-27-1976)
         (f)   INDUSTRIAL USER. Any non- governmental user of the sewage works identified in the Standard Industrial Classification Manual, 1972, United States Office of Management and Budget, as amended and supplemented, under the following divisions.
            1.   Agriculture, forestry and fishing;
            2.   Mining;
            3.   Manufacturing;
            4.   Transportation, communication, electric, gas and sanitary services; and
            5.   Services. A user in the division listed shall be excluded and treated as a commercial user if the district determines it will primarily introduce domestic wastes or wastes from sanitary conveniences. For industrial users with sewage containing BOD and suspended solids concentrations less than the concentrations as defined for general municipal flow, charges shall be based on concentrations as defined for general municipal flow. Domestic wastes or wastes from sanitary conveniences will not be utilized in determining payment under §§ 51.075 through 51.081. A user in the divisions listed shall be excluded from requirements for payment under §§ 51.075 through 51.081 if the District determines that it will primarily introduce domestic wastes or wastes from sanitary conveniences.
(Ord. 4288, passed 12-27-1976; Ord. 4289, passed 12-27-1976)
         (g)   INSTITUTIONAL USER. Those establishments engaged in activities of a noneconomic nature, frequently being the performance of services for the general public, health, educational, social and not classified as a governmental or commercial user in this chapter.
(Ord. 4289, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994)
      USER CLASSES. The industrial class shall include any user identified in the Standard Industrial Classification Manual of 1972, Office of Management and Budget, as amended and supplemented, under the following division: Division A - Agriculture, Forestry and Fishing; Division B - Mining; Division D - Manufacturing; Division E - Transportation, Communications, Electric, Gas and Sanitary Services; and Division I - Service. Non-industrial class shall include all users whose wastes are segregated domestic wastes or wastes from sanitary conveniences where regular domestic wastes are those wastes generated by normal domestic activity.
      VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated at 550°C from 15 to 20 minutes.
      WASTE. Includes sanitary sewage 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 the waste placed within containers or whatever nature prior to, and for purposes of disposal.
      WASTEWATER. The water-carried waste from residences, business buildings, institutional and industrial establishments, singular or in any combination, together with the ground, surface and storm waters as may be present.
      WASTEWATER CONSTITUENTS AND CHARACTERISTICS. The individual chemical, physical, bacteriological and radiological parameters, including volume, flow rate and such other parameters that serve to define, classify or measure the contents, quality, quantity and strength of wastewater.
      WASTEWATER TREATMENT PLANT. Any arrangement of devices and structures used for treating wastewater.
      WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(Ord. 4290, passed 12-27-1976)
      WATERS OF THE STATE. Any water, surface or underground, within the boundaries of the state, except confined waters in sewer, tanks and the like.
   (B)   Usage.
      (1)   The use of the word SHALL indicates a mandatory condition.
      (2)   The use of the word MAY indicates a discretionary condition.
      (3)   The use of the word WILL indicates a mandatory condition.
   (C)   Abbreviations. The following abbreviations shall have the designated meanings.
      ASTM. American Society for Testing Material.
      BOD. Biochemical oxygen demand.
      C.F.R. Code of Federal Regulations.
      COD. Chemical oxygen demand.
      EPA. Environmental Protection Agency.
      IDEM. Indiana Department of Environmental Management.
      l. Liter.
      LEL. Lower explosive limit.
      mg. Milligrams.
      mg/l. Milligrams per liter.
      NPDES. National Pollutant Discharge Elimination System.
      O&M. Operation and maintenance.
      POTW. Publicly owned treatment works.
      SIC. Standard Industrial Classification.
      SWDA. Solid Waste Disposal Act, 42 U.S.C. §§ 6901 et seq.
      TDS. Total dissolved solids.
      TITLE 40 C.F.R. PART 403. General Pretreatment Regulation as published in the Federal Register on June 26, 1978, and on January, 1981, and in subsequent amendments thereto.
      TKM. Total kjeldahl nitrogen.
      TSS. Total suspended solids.
      U.S.C. United States Code.
      WPCF. Water Pollution Control Federation.
(Prior Code, § 51.002) (Ord. 4290, passed 12-27-1976; Am. Ord. 7650, passed 2-14-1994; Am. Ord. 8731, passed 1-23-2006)