For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ACT. The Federal Water Pollution Act as amended by the Clean Water Act, being 33 U.S.C. §§ 1251 et seq.
APPROVAL AUTHORITY. The State Department of Environmental Management.
BIOCHEMICAL OXYGEN DEMAND (BOD) or CARBONACEOUS BIOCHEMICAL OXYGEN DEMAND (CBOD). 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 five days at 20°C. The laboratory determinations shall be made in accordance with procedures set forth in Standard Methods.
BUILDING (OR HOUSE) DRAIN. The part of the lowest horizontal piping of a building drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of building and conveys to a point approximately three feet outside the foundation wall of the building.
(1) BUILDING DRAIN, SANITARY. A building drain which conveys sanitary or industrial sewage only.
(2) BUILDING DRAIN, STORM. A building drain which conveys stormwater or other clear water drainage.
BUILDING (OR HOUSE) SEWER. The pipe which is connected to the building (or house) drain at a point approximately three feet outside the foundation wall of the building and which conveys the building’s discharge from that point to the public sewer or other place of disposal.
(1) BUILDING SEWER, SANITARY. A building sewer, which conveys sanitary or industrial sewage only, but not storm drainage.
(2) BUILDING SEWER, STORM. A building sewer which conveys stormwater or other clear water drainage, but not sanitary or industrial sewage.
CHEMICAL OXYGEN DEMAND (COD). A measure of the oxygen equivalent of the portion of the organic matter in a sample that is susceptible to oxidation by a strong chemical oxidant. The laboratory determinations shall be made in accordance with procedures set forth in Standard Methods.
COMBINED SEWER. A sewer intended to receive both wastewater and storm or surface water. COMBINED SEWERS are prohibited from connection to the town’s wastewater system.
COMPATIBLE POLLUTANT. A biological oxygen demand, suspended solids, pH and fecal coliform bacteria, plus additional pollutants identified in the NPDES 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:
(1) Chemical oxygen demand;
(2) Total organic carbon;
(3) Phosphorus and phosphorus compounds;
(4) Nitrogen and nitrogen compounds; and
(5) 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. Should contain a minimum of eight discrete samples taken at equal time intervals over the composite period or proportional to the flow rate over the composite period. More than the minimum number of discrete samples will be required where the wastewater loading is highly variable.
CONTROL AUTHORITY. Either the U.S. EPA, the state or the municipality.
DAILY DISCHARGE. Discharge of pollutant measured during a calendar year or any 24-hour period that reasonably represents the calendar day for purposes of sampling.
EASEMENT. An acquired legal right for the specific use of land owned by others.
EFFLUENT. The water, together with any wastes that may be present flowing out of a drain, sewer, receptacle or outlet.
ENGINEER. The duly authorized engineering representative of the town. The individual designated may be the Town Engineer, Superintendent of the WWTP, consulting civil or environmental engineer to the municipality, or some similar, acknowledged, technically qualified person.
ENVIRONMENTAL PROTECTION AGENCY (EPA). The U.S. Environmental Protection Agency. Where appropriate, the term may also be used as a designation for the administrator or other authorized official of the agency.
EQUIVALENT USER. The average daily residential flow upon which commercial or high use establishments are evaluated for load on the treatment works and for establishing charges (see the Sewer Rate Ordinance).
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 OILS. Oil, fat, grease in any physical state, such that will not separate by gravity from wastewater by treatment in a pretreatment facility approved by the municipality.
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 waste stream on a one-time basis with no regard to the flow in the waste stream and without consideration of time.
GRINDER PUMP. Grinder pump, control box and tank that services a single-family residential unit or similar sized connection.
INDUSTRIAL USER. A non-domestic discharger introducing pollutants into the sewerage system, regardless of whether the discharger is within the boundaries of the town. Any reference herein or obligation of a user shall include an INDUSTRIAL USER.
INDUSTRIAL WASTE. Any solid, liquid or gaseous substance or form of energy discharged, permitted to flow 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 in this section.
INDUSTRIAL WASTE (PRETREATMENT) PERMIT. A permit to deposit or discharge industrial waste into any sanitary sewer as issued by the municipality.
INFILTRATION. The water entering the sewerage 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 (I&I). The total quantity of water from both infiltration and inflow without distinguishing the source.
INFLOW. The water discharged into a new sewerage system, including building drains and sewers, from such sources as, but not limited to: roof leader; 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 run-off; street wash waters; or drainage. INFLOW does not include and is distinguishable from infiltration.
INFLUENT. The water, together with any wastes that may be present, flowing into a drain, sewer, receptacle or outlet.
INSPECTOR. The person or persons duly authorized by the town to inspect and approve the installation of building sewers and their connection to the public sewer coordination.
INTERFERENCE. The inhibition or disruption of the municipal treatment processes or operations which contributes to a violation of any requirement of the municipality’s NPDES permit.
LICENSED CONTRACTOR. A licensed contractor permitted by the County Area Plan, licensed for the service he or she is performing.
MAXIMUM DAILY DISCHARGE LIMITATIONS. The highest allowable daily discharge.
MAY. The act referred to is permissive.
NATIONAL CATEGORICAL PRETREATMENT STANDARD. Any regulation containing pollutant discharge limits promulgated by the EPA in accordance with 33 U.S.C. § 1317(b) and (c) of the Act, which applies to a specific category of industrial users.
NEW SOURCE. Any source, the construction of which is started after the publication of proposed regulations stating an applicable pretreatment standard or pretreatment requirement will be applicable to such source, provided the standard is promulgated within 120 days of its proposal in the Federal Register. Where the standard is promulgated later than 120 days after its proposal, a NEW SOURCE means any source in which construction is started after the date of promulgation of the standard.
NORMAL DOMESTIC SEWAGE.
(1) Wastewater or sewage having an average daily concentration as follows:
(a) Phosphorous: not more than ten mg/l;
(b) S.S.: not more than 275 mg/l;
(c) Ammonia: not more than 45 mg/l; and
(d) CBOD: not more than 275 mg/l.
(2) As defined by origin, wastewater from segregated domestic and/or sanitary conveniences as distinct from industrial processes.
NPDES PERMIT. The National Pollutant 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 33 U.S.C. § 1342.
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.
PERSON. Any and all persons, natural or artificial, including any individual, firm, company, municipal or private corporation, association, society, institution, enterprise, governmental agency or other entity.
pH. The logarithm (to the base 10) of the reciprocal of the hydrogen ion concentration of a solution expressed in gram-atoms per liter of solution.
POINT SOURCE.
(1) Any discernible, confined and discrete conveyance, including, but not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock or vessel or other floating craft from which pollutants are or may be discharged.
(2) The term does not include return flows from irrigated agriculture.
POLLUTANTS.
(1) COMPATIBLE POLLUTANTS. Waste containing biochemical oxygen demand, suspended solids, pH and Fecal Coliform bacteria.
(2) INCOMPATIBLE POLLUTANTS. Waste with any pollutant that is not a compatible pollutant.
POLLUTION. An alteration of the quality of the waters of the state by waste to a degree which unreasonably affects such water for beneficial uses or facilities which serve such beneficial uses. The human-made or human-induced alteration of the chemical, physical, biological and radiological integrity of water.
PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement of any state, local or federal authority, including, if applicable, the national categorical pretreatment standard imposed on an industrial user, related to pretreatment of industrial sewage from privately owned sources prior to introduction into the public sewage works.
PUBLIC SEWER. A pipe, conduit, grinder pump system, air release valves, pumping stations, manholes, valves or any other components which is owned and controlled by the municipality for carrying sewage or other waste liquids.
PRIVATE SEWER. A sewer which is not owned by a public authority.
RECEIVING STREAM. The watercourse, stream or body of water receiving the waters finally discharged from the WWTP.
REPAIR SERVICE CHARGE. An assessment levied for damage or abuse of the public sewer and sewerage system owned or operated by the town.
RESIDENTIAL PROPERTY UNIT. A building under one roof designed, arranged and used primarily for dwelling purposes by a single family.
SANITARY SEWAGE. Sewage discharged from the sanitary conveniences of dwellings (including apartment houses and hotels), office buildings, factories or institutions and free from stormwater, surface water and industrial waste.
SERVICE CHARGE. The basic assessment levied on all users of the public sewerage system for wastes which do not exceed in strength the concentration values above which a strength-of-wastes surcharge will be made.
SEWAGE. The water-carried wastes from residences, commercial buildings, institutions and industrial establishments, singular or in any combination, together with such unintentional ground, surface and stormwaters as may be present.
SEWAGE WORKS. All facilities for collecting, transporting, pumping, treating and disposing of sewage and sludge, namely the sewerage system and WWTP.
SEWER. A pipe or conduit for carrying sewage or other waste liquids.
(1) SANITARY SEWER. A sewer which carries sewage and to which storm, surface and groundwaters and unpolluted industrial wastewaters are not intentionally admitted.
(2) STORM SEWER. A sewer which carries storm, surface and groundwater drainage but excludes sanitary sewage.
SEWERAGE SYSTEM. The network of sewers, forcemains, appurtenances and the public sewer used for collecting, transporting and pumping sewage to the WWTP.
SHALL. The act referred to is mandatory.
SIGNIFICANT INDUSTRIAL USER. A user of the sewage works that:
(1) Discharges an average of 25,000 gallons per day or more of process wastewater (excluding sanitary, non-contact cooling and boiler blow-down wastewater) to the sewage works;
(2) Contributes a process waste stream that makes up 5% or more of the average dry weather hydraulic or organic capacity of the WWTP; or
(3) Is designated as a significant industrial user by the control authority on the basis that the industrial user has a reasonable potential to:
(a) Adversely affect the sewage work’s operation; or
(b) Violates:
1. Pretreatment standards; or
2. A requirement of 327 I.A.C. § 5-19-3.
SLUDGE. Any solid, semi-solid or liquid waste generated from a municipal, commercial or industrial WWTP, water supply treatment plant or air pollution control facility or any other waste having similar characteristics and effects as defined in standards issued under 33 U.S.C. § 1342 and 33 U.S.C. § 1345 and in the applicable requirements under 42 U.S.C. § 6921, 42 U.S.C. § 6924 and 42 U.S.C. § 6944 of the Solid Waste Disposal Act (SWDA), being 42 U.S.C. §§ 6901 et seq.
SLUG. Any discharge of water or wastewater which exceeds a flow quantity ten times the average daily flow within any ten-minute period, or which the average daily concentration of any constituent is exceeded by three times within a ten-minute period, that may adversely affect the collection or treatment system.
STANDARD INDUSTRIAL CLASSIFICATION (SIC). A classification pursuant to the latest edition of Standard Industrial Classification Manual issued by the Executive Office of the President, Office of Management and Budget.
STANDARD METHODS. The examination and analytical procedures set forth in the most recent edition of Standard Methods for the Examination of Water and Wastewater, published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP). A plan prepared to control erosion in accordance with 327 I.A.C. § 15-5.
SUPERINTENDENT. The Superintendent of the WWTP of the municipality or his or her duly authorized representative.
SURCHARGE. A charge for sewerage services in addition to the basic service charge.
(1) STRENGTH-OF-WASTES 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 service charge.
(2) WASTE SURVEILLANCE CHARGE. A monthly charge collected from users qualifying as industrial-class users to defray the cost of evaluating customer’s waste by metering and laboratory devices and/or any other methods deemed necessary.
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 SOLIDS. The sum of suspended and dissolved solids.
TOWN COUNCIL. The governing body for the town’s wastewater treatment system.
TOXIC AMOUNT. Concentrations of any pollutant or combination of pollutants which upon exposure to any organism will cause adverse effects such as cancer, genetic mutations and physiological manifestations, as defined in standards issued pursuant to 33 U.S.C. § 1317(a).
TOXIC POLLUTANT. The substances referred to in 33 U.S.C. § 1317(a) 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 benefited 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, inadequate treatment facilities, lack of preventative maintenance or careless or improper operation of the facilities.
USER. Any person, group of people, company, business, corporation, governmental entity or organization of any kind who discharges any material into the public sewer and sewerage system. USER includes, but is 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 of reserves, and other uses, both tangible and intangible, as specified by state or federal law.
VOLATILE 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, quantity and strength and wastewater.
WASTEWATER TREATMENT PLANT (WWTP). The arrangement of devices, structures and equipment used for treating and disposing of sewage and sludge.
WATERCOURSE. A channel in which a flow of water occurs either continuously or intermittently.
(Ord. 2015-6, passed 6-25-2015)