For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
COMBINED SEWER. A sewer intended to receive both wastewater and storm or surface water.
COMPATIBLE POLLUTANT. Biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, plus pollutants identified in the NDPES permit 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 considered compatible include: Chemical oxygen demand; total organic carbon; phosphorus and phosphorus compounds; nitrogen and nitrogen compounds; and fats, oils and grease of animal or vegetable origin (except as prohibited where these materials would interfere with the operation of the treatment works).
COMPOSITE SAMPLE. A wastewater sample that consists of equal portions by volume of grab samples taken at hourly intervals over a period of 24 hours or the daily hours of operation of a specific waste source.
DAILY DISCHARGE. Discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for the purposes of sampling.
EFFLUENT. The water, together with any wastes that may be present, flowing out of a drain, sewer receptacle or outlet.
FECAL COLIFORM. Any of a number of organisms common to the intestinal tract of humans and animals, whose presence in sanitary sewage is an indicator of pollution.
FLOATABLE OIL. Oil, fat or grease in a physical state, such that will separate by gravity from wastewater by treatment in a pretreatment facility approved by the town.
GARBAGE. Any solid wastes from the preparation, cooking or dispensing of food and from the handling, storage or sale of produce.
GRAB SAMPLE. A sample which is taken from a wastestream on a one-time basis with no regard to the flow in the wastestream and without consideration of time.
HYDROGEN ION CONCENTRATION. See definition of pH.
INCOMPATIBLE POLLUTANT. Any pollutant which passes through or interferes with the treatment processes or which may contaminate sewage sludge or the receiving stream.
INDUSTRIAL WASTE. Any solid, liquid or gaseous substance or form of energy discharged, permitted to flow, or escaping from an industrial, manufacturing, commercial or business process or from the development, recovery or processing of any natural resource carried on by any person as defined herein, exclusive of SANITARY SEWAGE.
INDUSTRIAL WASTE PERMIT. A permit to deposit or discharge industrial waste into any sanitary sewer as issued by the POTW (publicly-owned treatment works).
INFILTRATION. The water entering a sewer system, including building drains and sewers, from the ground, through such means as, but not limited to, defective pipes, pipe joints, connections or manhole walls. INFILTRATION does not include and is distinguished from INFLOW.
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 building drains and sewers, from such sources as, but not limited to: Roof leaders; cellar, yard and area drains; foundation drains; unpolluted cooling water discharges; drains from springs and swampy areas; manhole covers; cross connections from storm sewers; and combined sewers; catch basins; stormwaters; surface runoff; and street wash waters or drainage. INFLOW does not include, and is distinguished from, INFILTRATION.
INSPECTOR. The person or persons duly authorized by the town, through the Town Council, to inspect and approve the installation of building sewers and their connection to the public sewer system.
INTERFERENCE. The inhibition or disruption of the POTW treatment processes or operations which contribute to the violation of any requirement of the town’s NPDES permit. The term includes prevention of sewage sludge use or disposal by the POTW in accordance with § 405 of the Act, (33 U.S.C. § 1345) or any criteria, guidelines or regulations developed pursuant to the Solid Waste Disposal Act (SWDA), the Clean Air Act, the Toxic Substances Control Act or more stringent state criteria (including those contained in any state sludge management plan prepared pursuant to Title IV of SWDA) applicable to the method of disposal or use employed by the POTW.
MAJOR CONTRIBUTING INDUSTRY. An industry that meets anyone of the following: Has a flow of 50,000 gallons or more per average work day; has a flow greater than 5% of the flow carried by the municipal system receiving the waste; has in its waste a toxic pollutant in toxic amounts as defined in standards issued under 33 U.S.C. § 1317; or is found by the permit issuance authority, in connection with the issuance of an NPDES permit to the publicly-owned treatment works receiving the waste, to have significant impact, either singly or in combination with other contributing industries, on that treatment works or upon the quality of effluent from that treatment works.
MAXIMUM DAILY DISCHARGE LIMITATIONS. Highest allowable daily discharge.
MAY. Indicates a discretionary condition.
NATIONAL CATEGORICAL PRETREATMENT STANDARD or PRETREATMENT STANDARD. Any regulation containing pollutant discharge limits promulgated by the EPA in accordance with § 307(b) and (c) of the Act which applies to a specific category of industrial users.
NORMAL DOMESTIC SEWAGE. Sewage discharged from the sanitary conveniences of dwellings, apartment houses, hotels and motels.
NPDES PERMIT. National pollution discharge elimination system permit, which sets the conditions for the discharge of any pollutant or combination of pollutants to the navigable waters of the United States pursuant to Pub. Law No. 95-217 and all amendments thereto.
OUTLET. Any outlet, natural or constructed, which is the point of final discharge of sewage or of treatment plant effluent into any watercourse, pond, ditch, lake or other body of surface or groundwater.
PASS THROUGH. The discharge of pollutants through the wastewater treatment plant into the receiving stream in quantities or concentrations which are a cause of or significantly contribute to a violation of any requirement of the town’s NPDES permit including violation of the receiving stream’s water quality standards.
PERSON. Any and all persons, 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, the United States of America or other legal representatives, agents or assigns. The masculine gender includes the feminine, the singular includes the plural where indicated by context.
pH. The logarithm (to the base ten) of the reciprocal of the hydrogen ion concentration of a solution expressed in gram-atoms per liter of solution.
POLLUTION. An alteration of the quality of the waters of the state by waste to a degree which unreasonably affects such waters for beneficial uses or facilities which serves such beneficial uses. The human-made or human-induced alteration of the chemical, physical, biological and radiological integrity of water.
PRETREATMENT. The treatment of industrial sewage from privately-owned industrial sources prior to introduction into a public treatment works.
PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment, other than a national pretreatment standard imposed on an industrial user.
PRIMARY SEWER MAIN. The public sewer main which is required to transport sewage from the property line of the nearest prospective customer to the proposed point of connection at the sewage works’s existing sewer main.
PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that has been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch in any dimension.
RECEIVING STREAM. The watercourse, stream or body of water receiving the waters finally discharged from the sewage treatment plant.
SANITARY SEWAGE. Sewage discharged from the sanitary conveniences of dwellings (including apartment houses, hotels and motels), office buildings, factories or institutions and free from stormwater, surface water and industrial wastes.
SECONDARY SEWER MAIN. The public sewer main which is required to provide service from a prospective customer to the primary sewer main.
SERVICE CHARGE. The basic charge levied on all users of the public sewerage system for wastes which do not exceed in strength the concentration values above which a surcharge will be made.
SEWAGE. The water-carried wastes from residences, business buildings, institutions and industrial establishments, singular or in any combination, together with such ground, surface and stormwaters as may be present.
SEWAGE TREATMENT PLANT. The arrangement of devices, structures and equipment used for treating and disposal of sewage and sludge.
SEWAGE WORKS. The organization and all facilities for collecting, transporting, pumping, treating and disposing of sewage and sludge, namely the sewerage system and the sewage treatment plant.
SEWER. A pipe or conduit for carrying sewage or other waste liquids.
(1) PRIVATE SEWER. A sewer which is not owned by a public authority.
(2) PUBLIC SEWER. A primary sewer or secondary sewer in which all owners of abutting property have equal rights and which is controlled by the sewage works.
(3) SANITARY SEWER. A sewer which carries sewage and to which storm, surface and groundwaters and unpolluted industrial wastewaters are not intentionally admitted.
(4) STORM SEWER. A sewer which carries storm and surface water drainage but excludes sewage.
SEWER INSPECTOR. The person employed by the town to inspect and approve all sewer line construction, or his or her duly authorized representative.
SEWERAGE SYSTEM or SEWAGE SYSTEM. The network of sewers and appurtenances used for collecting, transporting and pumping sewage to the sewage treatment plant.
SHALL. An act which is mandatory.
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 the Federal Water Pollution Control Act or Clean Water Act, 33 U.S.C. § 1342 and 33 U.S.C. § 1345, and in the applicable requirements under §§ 3001, 3004 and 4004 of the Solid Waste Disposal Act, Pub. Law No. 94-580.
SLUG. Any discharge of water, sewage or industrial waste which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than 15 minutes more than five times the average 24-hour concentration of flows during normal operation.
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. The laboratory procedures set forth in the latest edition, at the time of analysis, 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 and Guidelines Establishing Test Procedures for Analysis of Pollutants, 40 C.F.R. part 136, published in the Federal Register on October 16, 1973.
SUPERINTENDENT. The Superintendent of the town’s Sewage Department, or his or her duly authorized representative.
SURCHARGE. The extra charges for sewerage service assessed customers whose sewage is of such a nature that it imposes upon the sewage works a burden greater than that covered by the basic service charge.
SUSPENDED SOLIDS. Solids which either float on the surface of 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 determinations shall be made in accordance with procedures set forth in Standard Methods.
TOTAL REVENUE. The revenue obtained from monthly minimum billing for the use of and service rendered by the sewage works and does not include front foot assessments, permit or inspection fees or other charges.
TOTAL SOLIDS. The sum of suspended and dissolved solids.
TOWN. The Town of Mooresville, Indiana, or any duly authorized officials acting on its behalf.
TOXIC AMOUNT. Concentration 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 § 307(a) of Pub. Law No. 95-217.
TOXIC POLLUTANT. The substances referred to in the Federal Water Pollution Control Act or Clean Water Act under 33 U.S.C. § 1342 and 33 U.S.C. § 1345, as well as any other known potential substances capable of producing toxic effects.
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 benefitted by discharge to the sanitary sewers and wastewater treatment facilities provided.
UPSET. An exceptional incident in which a discharger unintentionally and temporarily is in a state of noncompliance with the applicable standard due to factors beyond the reasonable control of the discharger, and excluding noncompliance to the extent caused by operational error, improperly designed treatment facilities, lack of preventative maintenance or careless or improper operation of the facilities.
USER. Any person that discharges, causes or permits the discharge of wastewater into the sewerage system.
VOLATILE ORGANIC AND NON-ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated at 550°C for 15 to 20 minutes.
WASTEWATER CONSTITUENTS AND CHARACTERISTICS. The individual chemical, physical, bacteriological and radiological parameters, including volume flow rate, and other parameters that serve to define, classify or measure the contents, quality and strength of wastewater.
WATERCOURSE. A channel in which a flow of water occurs either continuously or intermittently.
(Ord. 17-1989, passed 12-5-1989)