For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
(A) Federal government.
ADMINISTRATOR. The administrator of the U.S. Environmental Protection Agency.
FEDERAL ACT. The Federal Water Pollution Control Act (33 U.S.C. §§ 1251 et seq.) as amended by the Federal Water Pollution Control Act Amendments of 1972 (Pub. Law No. 92-500 and Pub. Law No. 93-243), and any other amendments to said public laws.
FEDERAL GRANT. The U.S. government participation in the financing of the construction of treatment works as provided for by Title II, Grants for Construction of Treatment Works of the Act, and implementing regulations.
(2011 Code, § 24.0202)
(B) State government.
DIRECTOR. The Director of the Iowa Department of Natural Resources.
STATE ACT. Iowa Code Ch. 445B.
STATE GRANT. The State of Iowa participation on the financing of the construction of treatment works as provided for by the Code of Iowa.
(2011 Code, § 24.0203)
(C) Local government.
AUTHORIZED CITY REPRESENTATIVE. The City Administrator or a designated representative.
CITY. The City of Newton.
ORDINANCE. This chapter or any amendment thereto.
(2011 Code, § 24.0204)
(D) General.
NPDES PERMIT. Any permit or equivalent document or requirements issued by the Administrator, or, where appropriate by the Director after enactment of the Federal Water Pollution Control Amendments of 1972, to regulate the discharge of pollutants pursuant to § 402 of the Federal Act.
(2011 Code, § 24.0206)
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.
(2011 Code, § 24.0205)
(E) Clarification of word usage.
MAY. The act referred to is permissible.
SHALL. The act referred to is mandatory.
(2011 Code, § 24.0207)
(F) Wastewater and its characteristics.
BOD (BIOCHEMICAL OXYGEN DEMAND). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20°C, expressed in milligrams per liter (mg/l).
EFFLUENT CRITERIA. Defined in any applicable NPDES permit.
FLOATABLE OIL. Oil fat or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pre-treatment facility. A wastewater shall be considered free of floatable fat if it is properly pre-treated and the wastewater does not interfere with the collection system.
GARBAGE. Solid wastes from the domestic and commercial preparation, cooking and dispensing of food, and from the handling, storage and sale of produce.
INDUSTRIAL WASTE. Any liquid, solid or gaseous substance discharged, permitted to flow or escaping from any industrial manufacturing, commercial or business establishment or process or from the development, recovery or processing of any natural resource as distinct from sanitary sewage.
MAJOR CONTRIBUTING INDUSTRY. An industrial user of the publicly-owned treatment works that:
(a) Discharges an average of 25,000 gallons per day or more of process wastewater excluding sanitary, noncontact cooling and boiler blowdown wastewater;
(b) Contributes a process waste stream which makes up 5% or more of the average dry weather hydraulic or organic capacity of the publicly-owned treatment works;
(c) Has in its waste a toxic pollutant in toxic amounts as defined in standards issued under § 307(a) of the Federal Act; or
(d) Is subject to categorical pretreatment standards under 40 CFR 403.6 and 40 CFR Chapter I, Subchapter N; or
(e) Is found by the permit issuance authority, in connection with the issuance of the 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.
MILLIGRAMS PER LITER. A unit of the concentration of water or wastewater constituent. It is 0.001 g of the constituent in 1,000 ml of water. It has replaced the unit formerly used commonly, parts per million, to which it is approximately equivalent, in reporting the results of water and wastewater analysis.
pH. The logarithms (Base 10) of the reciprocal of the hydrogen-ion concentration expressed by one of the procedures outlined in Standard Methods.
POPULATION EQUIVALENT. Used to evaluate the impact of industrial or other waste on a treatment works or stream. One POPULATION EQUIVALENT is 100 gallons of sewage per day, containing 0.17 pounds (200 mg/l) of BOD, 0.20 pounds (240 mg/l) of suspended solids, and 0.04 pounds (50 mg/l) of ammonia-nitrogen (NH3-N).
ppm. Parts per million by weight.
PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that have 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.
SEWAGE. Used interchangeably with WASTEWATER.
SLUG. Any discharge of water, sewage of 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 or flows during normal operation.
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 Environment Federation.
SUSPENDED SOLIDS. Solids that either float on the surface of, or are in suspension in, water, sewage or industrial waste, and which are removable by a laboratory filtration device. Quantitative determination of SUSPENDED SOLIDS shall be made in accordance with procedures set forth in Standard Methods.
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.
WASTEWATER. The spent water of a community. From this standpoint, of course, it may be a combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants and institutions, together with any ground water, surface water and storm water that may be present.
WATER QUALITY STANDARDS. Defined in the Iowa Administrative Code Ch. 16.
(2011 Code, § 24.0208)
(G) Sewer types and appurtenances.
BUILDING DRAIN. The part of the lowest piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer or other approved point of discharge, beginning two feet outside the building wall.
BUILDING SEWER. The extension from the building drain to the public sewer or other place of disposal.
COMBINED SEWER. A sewer which is designed and intended to receive wastewater, storm, surface and ground water drainage.
EASEMENT. An acquired legal right for the specific use of land owned by others.
PUBLIC SEWER. A sewer provided by or subject to the jurisdiction of the city. It shall also include sewers within or outside the corporate boundary that serve one or more persons and ultimately discharge into the city sanitary sewers, even though those sewers may not have been constructed with city funds.
SANITARY SEWER. A sewer that conveys sewage or industrial wastes or a combination of both, and into which storm, surface and ground waters or unpolluted industrial wastes are not intentionally admitted.
SEWER. A pipe or conduit for conveying sewage or any other waste liquids, including storm, surface and ground water drainage.
SEWERAGE. The system of sewers and appurtenances for the collection, transportation and pumping of sewage.
STORM SEWER. A sewer that carries storm, surface and ground water drainage, but excludes sewage and industrial wastes other than unpolluted cooling water.
STORM WATER RUNOFF. The portion of the precipitation that is drained into the sewers.
(2011 Code, § 24.0209)
(H) Treatment.
PRE-TREATMENT. The treatment of wastewater from sources before introduction into the wastewater treatment works.
WASTEWATER FACILITIES. The structures, equipment and processes required to collect, carry away and treat domestic and industrial wastes and transport effluent to a watercourse.
(2011 Code, § 24.0211)
WASTEWATER TREATMENT WORKS. An arrangement of devices and structures for treating wastewater, industrial wastes and sludge. Sometimes used as synonymous with WASTE TREATMENT PLANT or WASTEWATER TREATMENT PLANT or POLLUTION CONTROL PLANT.
(2011 Code, § 24.0210)
(I) Watercourse and connections.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of surface or ground water.
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(2011 Code, § 24.0212)
(J) User types.
CONTROL MANHOLE. A structure located on a site from which industrial wastes are discharged. Where feasible, the manhole shall have an interior drop. The purpose of a CONTROL MANHOLE is to provide access for the authorized city representative to sample and/or measure discharges.
INDUSTRIAL USER.
(a) Any non-governmental user of publicly-owned treatment works identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented, under the following divisions:
1. Division A - Agriculture, Forestry and Fishing;
2. Division B - Mining;
3. Division D - Manufacturing;
4. Division E - Transportation, Communications, Electric, Gas and Sanitary Services; and
5. Division I - Services.
(b) A user in the divisions listed may be excluded if it is determined by the authorized city representative that it will introduce primarily segregated domestic wastes or wastes from sanitary conveniences.
RESIDENTIAL, COMMERCIAL, NON-INDUSTRIAL USER. Any user of the treatment works not classified as an industrial user or excluded as an industrial user as provided for in this section.
USER CLASS. The type of user either “residential or commercial (non-industrial) or “industrial”, as defined herein.
(2011 Code, § 24.0213)
(K) Types of charges.
BASIC USER CHARGE. The basic assessment levied on all users of the public sewer system.
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 such works were designed and constructed. The term “operation and maintenance” includes REPLACEMENT.
SEWER AND WASTEWATER FUND. The principal accounting designation for all revenues received in the operation of the sewerage system and wastewater treatment works.
USEFUL LIFE. The estimated period during which the collection system and/or treatment works will be operated.
USER CHARGE. A charge levied on users of treatment works for the cost of operation and maintenance including replacement.
(2011 Code, § 24.0214) (Ord. 2442, passed 2-19-2024)