§ 53.01 DEFINITIONS.
   For the purpose of this chapter the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   BIOCHEMICAL OXYGEN DEMAND or BOD. The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure, five days at 20°C. Expressed in terms of weight and concentration (milligrams per liter (mg/l)), as measured by standard methods.
   DEPARTMENT. The City Department of Public Works.
   DOMESTIC SEWAGE. Sewage derived principally from sanitary conveniences of dwellings, business buildings, institutions and the like, and which does not exceed the limits of normal strength and sewage.
   EXCESS SEWAGE. Quantities of sewage and wastes delivered to the Wayne County Interceptor which exceed the quantity of potable water purchased from the city. Excess sewage is normally the result of infiltration of ground water and inflow of storm water into the wastewater system.
   FOG. Fats, oils, or grease in the waste expressed in terms of milligrams per liter (ppm).
   INDIRECT DISCHARGE. The discharge or the introduction of non-domestic pollutants from any source regulated under Section 307 (b) or (c) of the Federal Water Pollution Control Act, Pub. L. 92-500, as amended, into the public waste treatment system.
   INDUSTRIAL WASTE. Any liquid, solid, or gaseous waste or form of energy or combination thereof resulting from any business, trade, or research, including the development, recovery, or processing of natural resources.
   mg/l. Milligrams per liter.
   NORMAL STRENGTH SEWAGE. Sewage or wastes, the concentration of which does not exceed BOD of 275 mg/l, and fats, oils, and grease which do not exceed 100, mg/l, which have a pH between 6.5 and 9.5 and which do not contain a concentration of other constituents which will interfere with the normal sewage treatment process.
   P.   Phosphorous in the waste expressed in terms of milligrams per liter (ppm).
   PERSON. Any individual, firm, association, public or private corporation, or public agency or instrumentality.
   POLLUTANT. Any dredged spoil, solid waste, incinerator residue, sewage, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt or industrial, municipal, or agricultural waste discharged into water.
   PREMISES. Each lot or parcel of land, building, or premises having any connection to the water supply or sewage disposal systems of the city.
   PUBLIC SEWER. A common sewer controlled by a governmental agency or public utility.
   SEWER-DEBT SERVICE CHARGE. The sum of the applicable sewer user charge, surcharges, and debt service charges.
   SEWER SERVICE CHARGE. The sum of the applicable sewer user charge, surcharges, and debt service charges.
   SEWER USER. The recipients of services provided by the wastewater system, including premises which are connected to and discharge sewage or wastes into the system and shall consist of the following classes.
      (1)   COMMERCIAL USER. A user whose premises are privately owned and used to perform and/or sell services and /or products for profit (e. g., retail and wholesale stores, restaurants, motels, gasoline stations) and discharge primarily domestic sewage.
      (2)   GOVERNMENT USER. A user whose premises are publicly-owned facilities performing government office building, post office, library, school) and discharge only domestic sewage.
      (3)   INDUSTRIAL USER. A user whose premises are privately-owned and used for manufacturing a product from raw or purchased material and discharges wastewater used in any way in the manufacturing process in addition to domestic sewage.
      (4)   INSTITUTIONAL USER. A user whose premises are owned by a non-profit organization pursuant to Section 501 of the Internal Revenue Code of 1986, as amended (e.g., churches, hospitals) and discharge primarily domestic sewage.
      (5)   RESIDENTIAL USER. A user whose premises are domiciles for single or multiple-family use and discharge only domestic sewage.
   SEWER USER CHARGE. A charge based on thousands of cubic feet, or fractions thereof, levied on users of the wastewater system for user's proportionate share of the cost of operation and maintenance (including replacement) of the system.
   SEWER USER SURCHARGE. A charge imposed on a user of the wastewater system who discharges sewage or wastes in excess of normal strength.
   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 as measured according to standard methods.
   WASTEWATER or SEWAGE. Spent water which may be a combination of the liquid and water- carried wastes from residences, commercial buildings, industrial plants, institutions, or other land uses, including drainage water inadvertently present in the waste.
   WASTEWATER OPERATION AND MAINTENANCE. All costs, direct and indirect, inclusive of all expenditures attributable to administration, replacement, treatment and collection of sewage and wastes on a continuing basis in conformance with the NPDES permit, and other applicable regulations.
   WASTEWATER REPLACEMENT COSTS. Expenditures and costs for obtaining and installing equipment, accessories, or appurtenances which are necessary during the service life of the wastewater system to maintain the capacity and performance for which the system was designed and constructed.
   WASTEWATER SYSTEM or SEWER SYSTEM. Any part, or all, of the property, structures, equipment, sewers, materials, or appurtenances used in conjunction with the collection and disposal of wastewater, including the publicly-owned treatment works ( POTW).
(Ord. 99-007, passed 8-2-99; Am. Ord. 21-001, passed 1-25-21)