For the purpose of this chapter the following definitions shall apply unless the context clearly indicates or requires a different meaning.
40 CFR 403. General Pretreatment Regulations as published in the Federal Register on June 26, 1978 and on January 28, 1981 and in subsequent amendments thereto. (Ord. CO-83-4, passed 4-25-83)
ACT or THE ACT. The Federal Water Pollution Control Act, (PL 92-500) also known as the Clean Water Act, as amended, 33 U.S.C. 1251, et. seq.: as well as any guidelines, limitations, and standards promulgated by the Environmental Protection Agency pursuant to THE ACT. (Ord. PO-80-1, passed 11- 24-80)
ANNUAL FLOW. The total amount of waste treated by the treatment plant during the preceding year.
ANNUAL REVENUES REQUIRED. The total amount of revenues necessary to operate the sewage works in an efficient and economical manner and meet all known or anticipated expenditures, including but not limited to operation and maintenance expenses, debt service, replacement, and depreciation.
(Ord. CO-80-19, passed 11-24-80)
APPLICABLE PRETREATMENT STANDARD. Any pretreatment limit or prohibitive standard (federal or local) contained in this chapter deemed to be the most restrictive which non-domestic users will be required to comply with. (Ord. CO-83-4, passed 4-25-83)
APPROVAL AUTHORITY. The Director in an NPDES state with an approved state pretreatment program and the Administrator of the EPA in a non-NPDES state or NPDES state without an approved state pretreatment program.
ASTM. American Society for Testing Materials.
AUTHORIZED REPRESENTATIVE OF AN INDUSTRIAL USER.
(1) A principal executive officer of at least the level of vice-president, if the industrial user is a corporation.
(2) A general partner or proprietor if the industrial user is a partnership or proprietorship, respectively.
(3) A duly authorized representative of the individual designated above if the representative is responsible for the overall operation of the facilities from which the indirect discharge originates.
AVERAGE MONTHLY DISCHARGE LIMITATION. The highest allowable average of “daily discharges” over a calendar month, calculated as of all daily discharges measured during a calendar month divided by the number of daily discharges measured during that month. (Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98)
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.
BIOCHEMICAL OXYGEN DEMAND or BOD. 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 DRAIN 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 five feet outside the foundation wall of the building.
(1) SANITARY BUILDING DRAIN. A building drain which conveys sanitary or industrial sewage only.
(2) STORM BUILDING DRAIN. A building drain which conveys storm water or other clear water drainage, but no wastewater.
BUILDING LATERAL SEWER or HOUSE LATERAL SEWER. The extension from the building drain to the sewerage system or other place of disposal.
(1) SANITARY BUILDING SEWER. A building sewer which conveys sanitary or industrial sewage only.
(2) STORM BUILDING SEWER. A building sewer which conveys storm water or other clear water drainage, but no sanitary or industrial sewage.
BUILDING UNITS. Where more than one family, office, or business occupies a single building. Example: two or more apartments, two or more offices, two or more businesses occupy the same building, then each apartment, office, or business is counted as a single unit.
CATEGORICAL STANDARDS. National Categorical Pretreatment Standards or Pretreatment Standard.
CFR. Code of Federal Regulations.
CHEMICAL OXYGEN DEMAND or 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. The laboratory determination shall be made in accordance with procedures set forth in "Standard Methods."
COMPATIBLE POLLUTANTS. Biochemical oxygen demand, suspended solids, pH, and fecal coliform bacteria, plus additional pollutants identified in the city's National Pollutant Discharge Elimination Systems (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 compatible include the following.
(1) Chemical oxygen demand.
(2) Total organic carbon.
(3) Phosphorous and phosphorous compounds.
(4) Nitrogen and nitrogen compounds.
(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).
(Ord. PO-80-1, passed 11-24-80)
COMPOSITE SAMPLE. A COMPOSITE SAMPLE should contain a minimum of eight discrete samples taken at equal time intervals, proportional to the flow rate over the compositing period. More than the minimum number of discreet samples will be required where the wastewater loading is highly variable. (Am. Ord. PO-98-4, passed 6-8-98)
CONTROL AUTHORITY. Utility Service Board of the City of Frankfort, Indiana.
DAILY DISCHARGE. Discharge of a pollutant measured during a calendar day, or any 24-hour period that reasonably represents the calendar for purposes of sampling. (Am. Ord. PO-98-4, passed 6-8-98)
(Ord. CO-83-4, passed 4-25-83)
DEBT SERVICE. The total principal of and interest on the outstanding revenue bonds of the sewage works due and payable within the next 12 calendar months. (Ord. CO-80-19, passed 11-24-80)
DEPARTMENT. The city wastewater treatment plant, including the sewer collection. (Ord. PO-80-1, passed 11-24-80)
DEPRECIATION. An annual operating cost reflecting capital consumption and obsolescence (reduction of future service potential) of the sewage works. (Ord. CO-80-19, passed 11-24-80)
DOMESTIC SEWAGE. Wastewater from typical residential users and having pollutant characteristics of not greater than 200 mg/l BOD and 250 mg/l suspended solids.
EASEMENT. An acquired legal right of the specific use of land owned by others. (Am. Ord. PO-98- 4, passed 6-8-98)
EFFLUENT. Water, together with any wastes that may be present, flowing out of a drain, sewer, receptacle, or outlet.
ENVIRONMENTAL PROTECTION AGENCY or 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. (Am. Ord. PO-98-4, passed 6-8-98)
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 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.
GARBAGE. Any solid wastes from the preparation, cooking, or dispensing of food and from handling, storage, or sale of produce.
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 "Standard Methods."
GREASE AND OIL OF ANIMAL AND VEGETABLE ORIGIN. Substances of biodegradeable nature such as are discharged by meatpacking, vegetable oil and fat industries, food processors, canneries, and restaurants.
GREASE AND OIL OF MINERAL ORIGIN. Substances that are less readily biodegradeable than grease and oil of animal or vegetable origin, and are derived from a petroleum source. The substances include machinery lubricating oils, gasoline station wastes, petroleum refinery wastes, and storage depot 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 sewerage system, with no particle being greater than ½ inch in dimension.
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.
HOLDING TANK WASTE. Any waste from holding tanks, such as chemical toilets, campers, trailers, septic tanks, vacuum pump trucks, and the like.
INCOMPATIBLE POLLUTANT. Any pollutant that is not defined as a compatible pollutant, including nonbiodegradable dissolved solids, and further defined in Regulation 40 CFR Part 403.
INDUSTRIAL USER. Any industrial or commercial establishment manufacturing or processing facility that discharges industrial waste to a publicly owned treatment works.
INDUSTRIAL WASTES. Any solid, 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.
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 water, 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 person authorized by the Utility Service Board.
INTERFERENCE. The inhibition or disruption of the POTW treatment processes or operations which contributes to a violation of any requirement of the city'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.
ISBH. Indiana State Board of Health. (Ord. CO-83-4, passed 4-25-83)
L. Liter.
MAJOR CONTRIBUTOR. A contributor that meets any of the following requirements.
(1) Has a flow of more than 25,000 gallons per average workday.
(2) Has in its waste a toxic pollutant in toxic amounts as defined in Section 307 of the Federal Act.
(3) Has a flow greater than 5% of the flow carried by the municipal system receiving the waste.
(4) Has in its wastes toxic pollutants as defined pursuant to Section 307 of the Act, of state statutes and rules.
(5) Is found by the city, state control agency, or the U.S. Environmental Protection Agency (EPA) to have significant 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.
MAXIMUM DAILY DISCHARGE LIMITATIONS. Highest allowable daily discharge. (Ord. CO- 83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98)
MG. Milligrams.
MG/L. Milligrams per liter.
MINOR CONTRIBUTOR. A non-residential contributor that: (a) has potential for discharging pollutants that could violate specific local limits; or has potential for accidental spill or slug discharges of pollutants to the sewage system. (Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98)
NATURAL OUTLET. Any outlet into a watercourse, pond, lake, or other body of surface or ground water.
NATIONAL CATEGORICAL PRETREATMENT STANDARD OR PRETREATMENT STANDARD. Any regulation containing pollutant discharge limits promulgated by the EPA in accordance with Section 307(b) and (c) of the Act (33 U.S.C. 1347) which applies to a specific category of industrial users.
NATIONAL PROHIBITIVE DISCHARGE STANDARD OR PROHIBITIVE DISCHARGE STANDARD. Any regulation developed under the authority of 307 (b) of the Act and 40 CFR, Section 403.5 and includes specific prohibitions or limits as developed by a POTW, either as a requirement of an approved POTW pretreatment program or an NPDES Permit.
NEW SOURCE. Any source, the construction of which is commenced after the publication of proposed regulations prescribing a Section 307 (c) (33 U.S.C. 1317) categorical pretreatment standard which will be applicable to that source, if the standard is thereafter promulgated within 120 days of proposal in the Federal Register. Where the standard is promulgated later than 120 days after proposal, a new source means any source, the construction of which is commenced after the date of promulgation of the standard.
(Ord. PO-80-1, passed 11-24-80)
NORMAL DOMESTIC SEWAGE. Wastes such as are normally discharged from individual residences and other housing units. Normal domestic sewage shall not include any waste containing
a loading in excess of 200 milligrams per liter (mg/l) "BOD" and 250 mg/l suspended solids. (Ord. CO-80- 19, passed 11-24-80)
NPDES. National Pollutant Discharge Elimination System.
NPDES PERMIT. National Pollutant Discharge Elimination System permit setting forth conditions for the discharge of any pollutant or combination of pollutants to the navigable waters of the United States pursuant to Section 402 of PL 92-500.
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.
O & M. Operation and maintenance.
(Ord. PO-80-1, passed 11-24-80)
OPERATION AND MAINTENANCE EXPENSES. All ordinary and necessary expenses incurred in the normal operation of the sewage works, including but not limited to salaries and wages, electrical power, chemicals, supplies, minor repairs, insurance, and taxes.
(Ord. CO-80-19, passed 11-24-80)
PASS THROUGH. A discharge which exits the POTW into the waters of the United States in quantities or concentrations which alone or with discharge or discharges from other sources is a cause or causes a violation of the POTW's NPDES Permit, including an increase in the magnitude or duration of a violation. (Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98)
PERSON. Any and all persons, natural or artificial, including any individual, firm, company, municipal or private corporation, partnership, copartnership, 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 representatives, agents, or assigns.
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.
POLLUTION. An alteration of the quality of the waters of the state by waste to a degree which unreasonably affects the waters for beneficial uses or facilities which serve the 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, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discharged equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into water.
POTW. See PUBLICLY OWNED TREATMENT WORKS.
(Ord. PO-80-1, passed 11-24-80)
POTW TREATMENT PLANT. That portion of the POTW designed to provide treatment to wastewater.
PREMISES. A parcel of real estate including any single improvement thereon which is determined by the Utility Service Board to be a single user for purposes 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 a POTW. The reduction or alteration can be obtained by physical, chemical, or biological processes, process changes or by other means, except as prohibited by 40 CFR Section 403.6(d), and shall include all applicable rules and regulations contained in the code of Federal Regulations as published in the Federal Register, under Section 307 of Public Law 92- 500, under regulation 40 CFR Part 403 pursuant to the Act, and amendments.
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 the 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 instructions; preventive maintenance; avoidance of careless or improper operation; neat accurate sampling; analysis and records retention; storage of process chemicals, lubricants, solvents, and the like in a safe and organized manner; avoidance of accidental spillage; keeping operating logs; and other activities which produce the desired effluent quality. (Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98)
PUBLICLY OWNED TREATMENT WORKS or POTW. A treatment works as defined by Section 212 of the Act, (33 U.S.C. 1292) which is owned in this instance by the city. 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 city, users of the city's POTW. Also, known as sewage works.
RCRA. Resource Conservation and Recovery Act (P.1. 94-580). (Ord. CO-83-4, passed 4-25-83)
RECEIVING STREAM. The watercourse, stream, or body of water receiving the waters finally discharged from the wastewater treatment plant.
(Ord. PO-80-1, passed 11-24-80)
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 the works were designed and constructed.
(Ord. CO-80-19, passed 11-24-80)
RESIDENTIAL. Single family dwelling.
SANITARY SEWAGE. The waste from water closets, urinals, lavatories, sinks, bathtubs, showers, basement drains, household laundries, garage floor drains, bars, soda fountains, cuspidors, refrigerator drips, drinking fountains, stable floor drains, and all other watercarried waste except industrial wastes. (Ord. PO-80-19, passed 11-24-80)
SERVICE LIFE. The estimated useful life of the sewage works. For purposes of determining replacement, the city adopts the following guidelines for service lives for components of its sewage works.
(1) Structures. (Includes buildings, sewers, lift stations) 50 years
(2) Process equipment. (Includes major process equipment such as clarifier mechanism and vacuum filters, steel process tankage and chemical storage facilities, and electrical generating facilities on standby service only.) 20 years
(3) Auxiliary equipment. (Includes sewage pumps and electric motors, mechanical equipment such as compressors, aeration systems, centrifuges, and electrical generating facilities on regular service.) 15 years
(Ord. CO-80-19, passed 11-24-80)
SEWAGE WORKS. Sewers, wastewater treatment plant, sewerage system, and any associated structures or equipment. Also known as POTW.
SEWER. A pipe or conduit laid for carrying wastewater or other liquids.
(1) COMBINED SEWER. A sewer which carries both storm, surface, ground water runoff, and wastewater.
(2) PUBLIC SEWER. A sewer in which all owners of abutting property have equal rights and which is controlled by public authority, including the following elements.
(a) COLLECTION SEWER. A sewer whose primary purpose is to collect wastewater from individual point source discharges.
(b) FORCE MAIN. A pipe in which wastewater is carried under pressure.
(c) INTERCEPTOR SEWER. A sewer whose primary purpose is to transport wastewater from collector sewers to a treatment facility.
(d) PUMPING STATION. A station positioned in the public sewerage system at which wastewater is pumped to higher level.
(3) SANITARY SEWER. A sewer which carries wastewater and to which storm, surface, and ground waters and unpolluted industrial wastewater are not intentionally admitted.
(4) STORM SEWER. A sewer which carries storm, surface, and ground water drainage but excludes wastewater.
SEWERAGE SYSTEM. The network of publicly owned sewers and appurtenances used for collecting, transporting, and pumping wastewater to the wastewater treatment plant.
SIC. Standard Industrial Classification.
SIGNIFICANT INDUSTRIAL USER. A contributor that is any Categorical Industrial User (CIU) or contributor that is any other Industrial user (IU) which: (a) has a discharge of twenty-five thousand (25,000) gallons or more per day; (b) has in its waste a toxic pollutants in toxic amounts as defined in Section 307 of the Federal Act; (c) has a flow of five percent or greater of the discharge carried by the municipal system receiving the waste; (d) has a discharge which makes up five percent or more of the dry weather average hydraulic or organic capacity of the POTW; (e) has in its wastes toxic pollutants as defined pursuant to Section 307 of the Act of State Statutes and rules; (f) is found by the City, State Control Agency, or the U.S. Environmental Protection Agency (EPA) to have a reasonable potential, either singly or in combination with other industries, for adversely affecting the wastewater treatment system, the quality of sludge, the system's effluent quality or air emissions generated by the system. (Ord. PO-98-4, passed 6-8-98)
SIGNIFICANT NON-COMPLIANCE. Any user whose violation remains uncorrected 45 days after notification of non-compliance; which is part of a pattern of non-compliance over a twelve month period; which involves failure to accurately report non-compliance; or which results in the POTW exercising its emergency authority. For the purposes of this provision, an industrial user is in non-compliance if its violation meets one or more of the following criteria.
(1) Chronic violations of wastewaster discharge limits, defined here as those in which 66% or more of all of the measurements taken during a six-month period exceed (by any magnitude) the daily maximum limit or the average limit for the same pollutant parameter;
(2) Technical Review Criteria (TRC) violations, defined here as those in which 33% or more of all of the measurements for each pollutant parameter taken during a six-month period equal or exceed the product of the daily maximum limit or the average limit multiplied by the applicable TRC (TRC = 1.4 for BOD, TSS, fats, oil and grease, and 1.2 for all other pollutants except pH);
(3) Any other violation of a pretreatment effluent limit (daily maximum or longer-term average) that the Control Authority determines has caused, alone or in combination with other discharges, interferences or pass through (including endangering the health of POTW personnel or the general public);
(4) Any discharge of a pollutant that has caused imminent endangerment to human health, welfare or to the environment or has resulted in the POTW's exercise of its emergency authority to halt or prevent such a discharge;
(5) Failure to meet, within 90 days after the schedule date, a compliance schedule milestone contained in a local control mechanism or enforcement order for starting construction, completing construction or attaining final compliance;
(6) Failure to accurately report non-compliance;
(7) Any other violation or group of violations which the Control Authority determines will adversely affect the operation or implementation of the local pretreatment program.
(Ord. PO-98-4, passed 6-8-98)
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 Section 402, 405 of the Federal Act and in the applicable requirements under Sections 3001, 3004 and 4004 of the Solid Waste Disposal Act PL 94-580.
SLUG. Any discharge of water or wastewater which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than five minutes more than five times the average 24 hour concentration of flow during normal operation and shall adversely affect the sewage works.
STANDARD INDUSTRIAL CLASSIFICATION or 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.
STORM WATER. Any flow occurring during or following any form of natural precipitation and resulting therefrom.
SUPERINTENDENT. The administrative head of the wastewater treatment plant.
SUPERVISOR, SEWER MAINTENANCE. Administrative head of sewer maintenance.
SURCHARGE. A charge for services in addition to 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 determination shall be made in accordance with procedures set forth in "Standard Methods."
SWDA. Solid Waste Disposal Act. 42 U.S.C. 6901, et seq.
TOTAL SOLIDS. The sum of suspended and dissolved solids.
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 Section 307 (a) of PL 92-500.
TOXIC SUBSTANCES. Any chemical or mixture that may present an unreasonable risk of injury to health or the environment.
TOXICS. Those pollutants that have a toxic effect on living organisms.
TSS. Total suspended solids.
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.
UPSET. An exceptional incident in which a Discharger unintentionally and temporarily is in a state of noncompliance with the standards set forth in this chapter due to factors beyond the reasonable control of the discharger, and excluding noncompliance to the extent caused by operational error, improperly designed pretreatment facilities, lack of preventive maintenance, or careless or improper operation thereof. (Ord. CO-83-4, passed 4-25-83; Am. Ord. PO-98-4, passed 6-8-98)
USB. Utility Service Board.
USC. United States Code.
USER. Any person that discharges, causes, or permits the discharge of wastewater into the sewerage system.
(Ord. PO-80-1, passed 11-24-80)
USER CHARGE. That charge applied uniformly to all users of the sewage works to cover operation and maintenance expenses and replacement, based on the quantity of sewage produced as measured by water meters or other acceptable measuring devices. (Ord. CO-80-19, passed 11-24-80)
USER CLASSES.
(1) INDUSTRIAL CLASS. Includes any user, identified in the Standard Industrial Classification Manual of 1972, Office of Management and Budget, as amended and supplemented, under the following divisions: Division A - Agriculture, Forestry and Fishing; Division B - Mining;
Division D - Manufacturing; Division E -Transportation, Communications, Electric, Gas and Sanitary services; and Division I - Services.
(2) NON-INDUSTRIAL CLASS. Includes 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.
UTILITY SERVICE BOARD. The administrative governing body of the public utilities of the city. Herein also referred to as the "Board."
VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated at 550°C. for 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 such waste placed within containers of whatever nature, prior to, and for purposes of disposal.
WASTEWATER. The water-carried waste from residences, business buildings, institutions, and industrial establishments, singular or in any combination, together with such 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.
WATERS OF THE STATE. Any water, surface or underground, within the boundaries of the state, except confined waters in sewers, tanks, and the like.
WPCF. Water Pollution Control Federation.
(Ord. PO-80-1, passed 11-24-80)