For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
A.A.C. The Arizona Administrative Code.
ADEQ. The Arizona Department of Environmental Quality.
APPROVED LABORATORY PROCEDURES. The measurements, tests and analyses of the characteristics of water and wastes in accordance with analytical procedures determined acceptable by federal guidelines as established in 40 C.F.R. part 136, or as approved by the Regional Administrator, U.S. Environmental Protection Agency.
A.R.S. The Arizona Revised Statutes.
AVERAGE QUALITY. The arithmetic average (weighted by flow value) of all the “daily determinations of concentration”, as that term is defined herein, made during a calendar month.
BOD (BIOCHEMICAL OXYGEN DEMAND). The oxygen utilized in the biochemical oxidation of organic matter under standard laboratory conditions for five days at a temperature of 20°C, reported in milligrams per liter.
BUILDING SEWER. Those drains commencing at and connecting one or more plumbing fixtures, usually within a structure, to a point approximately five feet outside the foundation of the structure.
CALCULATED DESIGN CAPACITY. The maximum capacity of the treatment plant as determined by calculations used in standard engineering practice.
CALCULATED DISCHARGE. The discharge from a user which is calculated based upon estimated waste/sewage flow rates as published by the latest edition of the Uniform Plumbing Code.
CAPITAL RESERVE. The funds remaining on an annual basis from revenue collected from connection, monthly user fees and septage fees after payment of all wastewater treatment system expenses including debt service.
CERTIFIED COST. All costs as published in the Engineering News Record for Phoenix, Arizona, on the closest date to January 1 in each year. (See TOTAL DEVELOPMENT COST.)
CLEAN OUT. A device which provides access from the surface to an underground sewer line.
COD (CHEMICAL OXYGEN DEMAND). The series of pipes, manholes and pumping stations, if applicable whose function it is to gather wastewater from divergent sources and deliver same to one central location.
COLLECTION SYSTEM. The series of pipes, manholes and pumping stations, if applicable, whose function it is to gather wastewater from divergent sources and deliver same to one central location.
CONNECTION FEES. Those fees collected in return for the right to connect a “source” to the collection system.
COOLING WATER. The clean wastewater discharged from any heat transfer system, such as condensation, air conditioning, cooling or refrigeration.
DAILY COMPOSITE SAMPLE. A sample of wastewater continuously collected over a normal operating day.
DAILY COMPOSITE SAMPLE QUALITY. The concentration of some parameter tested in a “daily composite sample”, as that term is defined herein, and reported proportional to flow.
DAILY DETERMINATION OF CONCENTRATION. For composite samples, the same as “daily composite sample quality”, as that term is defined herein. For grab samples, the arithmetic average (weighted by flow value) of all “grab sample qualities”, as that term is defined herein, determined by any calendar day.
DEPARTMENT. The town’s Department of Public Utilities.
DISCHARGE. The deposit of sewage, water or any liquid from any sewer user into the sewer system.
DOMESTIC WASTE. A typical, residential type waste which requires no pretreatment under the provisions of this chapter before discharging into the sanitary sewer system, excluding all commercial manufacturing and industrial wastes.
DOWNFLOW. The direction of flow in a sewer line.
EQUIVALENT PLUMBING UNITS. The method of calculating probable discharge based upon the quantity and/or size of plumbing fixtures on the property of a user.
EQUIVALENT RESIDENTIAL UNIT. The method of calculating discharge to the sewer based upon the average flow from a typical residence, set at 200 gallons per day per residence.
ESTABLISHMENT, PLANT. Any establishment or plant producing liquid waste, with or without suspended solids, required to be discharged into the sewer system.
EXTERIOR INVERT. The transition from sewer pipe to manhole at the entrance or “upstream” side of any manhole.
GARBAGE. Solid waste generated by owner-users.
GRAB SAMPLE. An individual sample of sewage collected in less than 15 minutes.
GRAB SAMPLE QUALITY. The concentration of some parameter tested in a grab sample, as that term is defined herein.
INDUSTRIAL USER. Any non-governmental, non-residential user of the sewer system which discharges any industrial waste and is identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented under one of the following divisions: A; B; D; E; I.
INDUSTRIAL WASTE. Any liquid, free-flowing waste, including cooling water, resulting from any industrial or manufacturing process or from the development, recovery or processing of natural resources, with or without suspended solids.
INFLATION FACTOR. A modification in construction costs to achieve, as closely as possible constant 1-1-1993 dollars.
INFLOW. Water other than wastewater that enters a sewer system (including sewer service connections) from sources such as roof leaders, cellar drains, foundation drains, drains from springs and swampy areas, manhole covers, cross-connections between storm sewer and sanitary sewers, catch basins, cooling towers, storm sewers, surface runoff, street wash waters or drainage.
INTERFERENCE. Inhibition or disruption of the sewer system, treatment processes or operations which contribute to a violation of any requirement of a National Pollutant Discharge Elimination System permit pursuant to § 307(b) and (c) of the Federal Water Pollution Control Act, as amended by the Clean Water Act of 1977, being 33 U.S.C. § 1317(b) and (c).
LATERAL COLLECTION SYSTEM. The sewer line or series of sewer lines which connect two or more “sources” lying wholly within the property lines of a “user”. A LATERAL SEWER SYSTEM is constructed by or for and is maintained by or for a single “user”.
LATERAL SEWER LINE. The portion of a sewer system commencing at a point five feet outside of the foundation of a “source” being served to the connection of another LATERAL SEWER LINE after which the combined line shall be referred to as a “lateral collection system” or to the property line of the “user”. A LATERAL SEWER LINE OR COLLECTION SYSTEM is constructed by or for and maintained by or for a single “user”.
MAINTENANCE. Keeping the treatment works in a state of repair, including expenditures necessary to maintain the capacity (capability) for which said works were designed and constructed.
MANAGEMENT CONTRACT. The town may by contract employ professional services to perform the duties and functions of the Department as provided herein.
MANHOLE. A structure located at regular intervals along a sewer pipe line of sufficient size for a work person to enter for the purpose of cleaning or maintaining the collection system.
MASTER LEASE. The authority appointed by the town may lease the entire wastewater treatment system. This lease shall be described as the MASTER LEASE.
OUTFALL SEWER. The series of pipes, manholes and pumping stations, if applicable, necessary to convey the wastewater from the end of the collection system to the wastewater treatment plant.
PERMITTEE or PERMIT HOLDER. Any person, firm, association, corporation or trust which owns, operates, processes or controls an establishment or plant being operated under a valid industrial waste permit to discharge waste into the sewer system.
PRODUCER. Any person, firm, association, corporation or trust which owns, operates, possesses or controls an establishment or plant, whether or not a permittee.
PROPERTY LINE. The boundary between the property owned by a user and property owned by the town or the wastewater treatment system.
REPLACEMENT. Those expenditures made for obtaining and installing equipment, accessories and/or appurtenances during the useful life of the treatment works, which are necessary to maintain the capacity and performance of the treatment works for which they were designed and constructed.
RESIDENTIAL UNITS.
(1) FAMILY. One or more person occupying a premise and living as a single housekeeping unit as distinguished from a group occupying a boardinghouse, lodging house or hotel.
(2) MOBILE HOME DWELLING/INTEGRATED HOME. A structure transportable in one or more sections, which is built on a permanent chassis and designed to be used as a dwelling with or without a permanent foundation, when connected to the required utilities, and includes the plumbing, heating, air conditioning and electrical system contained therein.
(3) MULTIPLE-FAMILY DWELLING. A building or portion thereof designed for occupancy by three or more families.
(4) SINGLE-FAMILY DWELLING. A building or pre-manufactured structure designed for occupancy by one family.
(5) TWO-FAMILY DWELLING. A building designed for occupancy by two families.
RV DWELLING. A transportable structure which is designed to be used as a dwelling with or without a permanent foundation, when connected to the required utilities and has RV-type self containment, which means grey water, black water and fresh water tanks.
SEGMENT. A portion of a sewer line commencing at the exterior upflow invert of a manhole and including all of that sewer line upflow to, and including, the next manhole.
SEPTAGE AND SCAVENGER WASTE. Any discharge of concentrated wastewater into the system from a non-continuous source and shall include sludge removed from septic tanks and the accumulated waste from RVs.
SERVICE LINE. The sewer line from the property line of a customer to the point in the collection system where the discharge from the customer joins the discharge from one or more additional customers.
SHALL. The act referred to is mandatory.
SOURCE. The point, located at or within five feet of a structure from whence wastewater initially enters the wastewater collection system.
STANDARD INDUSTRIAL CLASSIFICATION. A coded classification of industries based upon economic activity developed by the U.S. Department of Commerce as published in the Standard Industrial Classifications Manual, 1972, Office of Management and Budget and its amendments.
STANDARD METHODS. The procedure as described in the most current edition of Standard Methods for the Examination of Water and Wastewater, published by the American Health Association, or the most current edition of Manual of Methods for Chemical Analysis of Water and Wastes, published by the U.S. Environmental Protection Agency.
SUSPENDED SOLIDS (SS). Solids measured in milligrams per liter that either float on the surface of or are in suspension in water, wastewater or other liquids and which are largely removable by a laboratory filtration device, as defined in Standard Methods, as defined herein.
SYSTEM DESIGN CAPACITY. The design capacity for normal domestic wastewater as established by accepted engineering standards.
TOTAL DEVELOPED COST. The total cost of materials, labor, design, finance, property acquisition and management necessary to complete all or a portion of a collection system or treatment plant.
TOTAL ORGANIC CARBON (TOC). The total of all organic compounds expressed in milligrams per liter as determined by the combustion-infrared method prescribed by approved laboratory procedure.
TOWN ENGINEER. A registered professional engineer qualified in all applicable aspects of standard sewer design.
TREATMENT PARAMETER. A fundamental characteristic of sewage around which treatment is designed, such as, but not limited to flow, BOD, suspended solids and phosphorus.
UPFLOW. The direction in a sewer line opposite the direction of flow.
USER. Any person, lot, parcel of land, building, premises, municipal corporation or other political subdivision that discharges, causes or permits the discharge of wastewater in the sewer system.
USER FEES. The monthly fees collected from each “user” in return for treating the “wastewater” produced by the “source”.
WASTEWATER TREATMENT PLANT. The portion of a wastewater treatment system commencing at manhole one, the most downstream manhole, and including all devices, holding areas, buildings, property and equipment involved in the actual treatment of the wastewater and the disposal of the effluent.
WASTEWATER TREATMENT SYSTEM. All facilities including the “wastewater treatment plant” and “collection system” for collecting, pumping, treating and disposing of wastewater, the residue thereof and the effluent water. A WASTEWATER TREATMENT SYSTEM is owned by the “wastewater treatment system owner”. A collection system may be maintained by a wastewater treatment system manager or the wastewater treatment system owner.
WATER CLOSET. Toilet existing within a residential or commercial structure connected directly to a sanitary sewer system. This shall exclude recreational vehicle toilets that are connected to a holding tank.
WASTEWATER TREATMENT DEPARTMENT. The town or such person, firm, authority or department as may be designated by the town to be the responsible administrative body of the wastewater treatment system.
WASTEWATER TREATMENT SYSTEM OWNER. The individual, company or municipality who, at any given time, holds title to the improvements described as the wastewater treatment system.
(Prior Code, § 16-1-1) (Ord. 91-02, passed - -1991; Ord. 91-04, passed - -1991; Res. 91-09, passed - -1991; Ord. 92-04, passed - -1992; Res. 92-04, passed - -1992; Res. 94-22, passed - -1994; Ord. 10-01, passed - -2010; Ord. 18-02, passed 5-18-2018)