Except where specifically designated herein, all words used in this document shall carry their customary meanings. Words used in the present tense include the future and plural words include the singular. The word "shall" is always mandatory, and the word "may" denotes a use of discretion in making a decision. Any definition not found in this section will take its meaning from the WAC (Chapter
246-290 WAC), or as amended.
"Air gap"means a physical separation between the free-flowing end of a potable water supply pipeline and the overflow rim of an open or nonpressure-receiving vessel. To be an "approved air gap," the separation must be at least twice the diameter of the inlet piping (supply pipe) measured vertically, and never be less than one inch.
"Auxiliary supply"means any water source or system other than the city of Leavenworth's water. This includes, but is not limited to, irrigation systems, ponds, streams, rivers or wells.
"Backflow"means the flow of water or other liquids, gases or solids from any source back into the distribution system. The flow of water in the opposite direction of its intended flow.
"Back pressure"means water pressure which exceeds the operating pressure of the public potable water supply.
"Back siphonage"shall mean backflow due to a negative or reduced pressure within the public potable water supply.
"City"shall mean the city of Leavenworth.
"City administrator"means the person responsible for the enforcement of this chapter, or their designee.
"Closed system"means any water system or portion of a water system in which water is transferred to a higher pressure zone closed to atmosphere.
"Contamination"means the entry into or presence in a public water supply system of any substance which may be deleterious to health and/or quality of the water.
"Cross connection"means any physical arrangement where a public water system is connected, directly or indirectly (actual or potential), with any other nondrinkable water system or auxiliary system, sewer, drain conduit, swimming pool, storage reservoir, plumbing fixture, swamp coolers, or any other device which contains, or may contain, contaminated water, sewage, or other liquid of unknown or unsafe quality which may be capable of imparting contamination to the public water system as a result of backflow. Bypass arrangements, jumper connections, removable sections, swivel or changeover devices, or other temporary or permanent devices through which, or because of which, backflow may occur are considered to be cross connections.
"Cross connection specialist" or "CCS"shall mean a person who has successfully completed and maintains all requirements as established by the Washington State Department of Health to be a specialist in the state of Washington.
"Degree of hazard"means the low or high hazard classification that shall be attached to all actual or potential cross connections.
"DOH"means Washington State Department of Health.
"Health hazard"means an actual or potential threat of contamination of a physical, toxic or biological nature that would be a danger to health.
"High hazard"means the classification assigned to an actual or potential cross connection that potentially could allow a substance that may cause illness or death to backflow into the potable water supply.
"In-premises protection"means a method of protecting the health of consumers served by the customer's plumbing system (i.e., located within the property lines of the customer's premises) by the installation of an approved air gap or backflow prevention assembly at the point of hazard.
"Inspector" or "surveyor"shall mean a person holding a valid CCS certificate issued in accordance with the Washington Administrative Code, who meets the stipulations in this chapter, and the most recent edition of the city's standard operating procedures manual.
"Local administrative authority"means the local official, board, department or agency authorized to administer and enforce the provisions of the Uniform Plumbing Code and all other plumbing codes recognized by the state of Washington.
"Low hazard"means the classification assigned to an actual or potential cross connection that potentially could allow a substance that may be objectionable, but not hazardous to one's health, to backflow into the potable water supply.
"Mobile unit"shall mean units connecting to the water system through a hydrant, hosebib, or other appurtenance of a permanent nature that is part of the city water system or a permanent water service to a premises. Uses that are prohibited include recreational vehicles, commercial operators, or other nonemergency services vehicles, apparatus or equipment.
"Person"means a natural person (individual), corporation, company, association, partnership, firm, limited liability company, joint venture company or association, and other such entity.
"Plumbing hazard"means an internal or plumbing-type cross connection in a consumer's potable water system that may be either a pollutional or a contamination-type hazard. This includes, but is not limited to, cross connections to toilets, sinks, lavatories, wash trays, domestic washing machines and lawn sprinkling systems. Plumbing-type cross connections can be located in all types of structures including, but not limited to, homes, apartment houses, hotels and commercial or industrial establishments.
"Pollution"means an impairment of the quality of the public potable water supply which adversely affects the aesthetic qualities of such potable water for domestic use but does not create a hazard to the public health. Also referred to as "low hazard" or "nonhealth hazard." See also "Contamination."
"Potable water supply"means any system of water supply intended or used for human consumption or other domestic use.
"Premises"means any piece of property to which water is provided including, but not limited to, all improvements, mobile structures and structures located on it.
"Premises isolation"means a method of protecting a public water system by installation of an approved air gap or approved backflow prevention assembly at the point of service (end of purveyor's service pipe) to separate the customer's plumbing system from the purveyor's distribution system.
"SOP"means the most recent edition of the city of Leavenworth's standard operating procedure manual.
"System hazard"means an actual or potential threat of severe danger to the physical properties of the public or consumer's potable water system or of a pollution or contamination which would have a detrimental effect on the quality of the potable water in the system.
"Used water"means any water supplied by the city to a customer's property after it has passed through the service connection and is no longer under the control of the city water system.
"WAC"means the most recent edition of the Washington Administrative Code.
"Water system"shall mean the city of Leavenworth's public water system.
(Ord. 1178 § 1, 2001; Ord. 1440 § 1 (Att. A), 2013; Ord. 1656 § 1 (Att. A), 2022)