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, also known as the Clean Water Act, as amended, 33 U.S.C. §§ 1251 et seq.
APPROVAL AUTHORITY. The Director of the State Department of Environmental Quality or other duly authorized official of that agency.
AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER. A person who may be:
(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; or
(3) A duly authorized representative of the individual designated in division (1) or (2) of this definition if the representative is responsible for the overall operation of the facilities from which the indirect discharge originates.
BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20ºC, expressed in terms of weight and concentration (milligrams per liter or mg/l).
BUILDING SEWER. A sewer conveying wastewater from the premises of a user to the POTW.
CATEGORICAL STANDARDS. National categorical pretreatment standards or pretreatment standards.
CONTROL AUTHORITY. The approval authority.
COOLING WATER. The water discharged from any use such as air conditioning, cooling, or refrigeration, or to which the only pollutant added is heat.
DIRECT DISCHARGE. The discharge of treated or untreated wastewater directly to the waters of the state.
ENVIRONMENTAL PROTECTION AGENCY or EPA. The United States Environmental Protection Agency, or where appropriate the term may also be used as a designation for the Administrator or other duly authorized official of that agency.
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 vessels, chemical toilets, campers, trailers, septic tanks, and vacuum-pump tank trucks.
INDIRECT DISCHARGE. The discharge or the introduction of nondomestic pollutants from any source regulated under § 307(b) or (c) of the Act (33 U.S.C. § 1317) into the POTW, including holding tank waste discharged into the system.
INDUSTRIAL USER. A source of indirect discharge which does not constitute a discharge of pollutants under regulations issued pursuant to § 402 of the Act (33 U.S.C. § 1342).
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.
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 (33 U.S.C. § 1347) which applies to a specific category of industrial users.
NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES), NPDES PERMIT or NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT. A permit issued pursuant to § 402 of the Act (33 U.S.C. § 1342).
NATIONAL PROHIBITIVE DISCHARGE STANDARD or PROHIBITIVE DISCHARGE STANDARD. Any regulation developed under the authority of § 307(b) of the Act and 40 C.F.R. § 403.5.
NEW SOURCE. Any building, structure, facility, or installation from which there is or may be a discharge of pollutants, the construction of which commenced after the publication of proposed pretreatment standards under § 307(c) of the Act, which will be applicable to that source if the standards are thereafter promulgated in accordance with that section.
PERSON. Any individual, partnership, copartnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity, or any other legal entity or their legal representatives, agents, or assigns. The masculine gender shall include the feminine, the singular shall include the plural where indicated by the context.
pH. The logarithm (base 10) of the reciprocal of the concentration of hydrogen ions expressed in grams per liter of solution.
POLLUTANT. Any dredged soil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical waste, biological materials, radioactive materials, heat, wrecked or discharged equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into water.
POLLUTION. The human-made or human-induced alteration of the chemical, physical, biological, and radiological integrity of water.
POTW TREATMENT PLANT. The portion of the POTW designed to provide treatment to wastewater.
PRETREATMENT or TREATMENT. 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 these pollutants into a POTW. The reduction or alteration can be obtained by physical, chemical, or biological processes, or process changes by other means, except as prohibited by 40 C.F.R. § 403.6(d).
PRETREATMENT REQUIREMENTS. Any substantive or procedure requirement related to pretreatment, other than a national pretreatment standard imposed on an industrial user.
PUBLICLY OWNED TREATMENT WORKS (POTW). A treatment works, as defined by § 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 also includes any sewers that convey wastewater to the POTW from persons outside the city who are, by contract or agreement with the city, users of the city’s POTW.
SIGNIFICANT INDUSTRIAL USER. Any industrial user of the city’s wastewater disposal system who:
(1) Has a discharge flow of 25,000 gallons or more per average workday;
(2) Has a flow greater than 5% of the flow in the city’s wastewater treatment system;
(3) Has in its wastes toxic pollutants as defined pursuant to § 307 of the Act or state statutes and rules; or
(4) Is found by the city, the state control agency, or the United States 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.
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.
STORMWATER. Any flow occurring during or following any form of natural precipitation and resulting therefrom.
SUPERINTENDENT. The person designated by the city to supervise the operation of the publicly owned treatment works and who is charged with certain duties and responsibilities by this chapter, or his or her duly authorized representative. Until such time as the city shall, by resolution, designate a Superintendent, the DPW foreperson shall be SUPERINTENDENT for purposes of this chapter.
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 POLLUTANT. Any pollutant or combination of pollutants listed as toxic in regulations promulgated by the Administrator of the Environmental Protection Agency under the provision of CWA § 307(a) or other Acts.
USER. Any person who contributes, causes, or permits the contribution of wastewater into the city’s POTW.
WASTEWATER. The liquid and water-carried industrial or domestic wastes from dwellings, commercial buildings, industrial facilities, and institutions, together with any infiltration or inflow which may be present, whether treated or untreated, which is contributed into or permitted to enter the POTW.
WATERS OF THE STATE. All streams, lakes, ponds, marshes, watercourses, waterways, wells, springs, reservoirs, aquifers, irrigation systems, drainage systems, and all other bodies or accumulations of water, surface or underground, natural or artificial, public or private, which are contained within, flow through, or border upon the state or any portion thereof.
(Ord. 02-03, passed 7-15-2002)