(A) The purpose of this chapter is to protect the public health of water consumers by the control of actual and potential cross-connections.
(B) Rules and regulations of the state’s Department of Environmental Quality pertaining to public water supplies have specific provisions to control cross-connections in public water systems. For the purpose of protecting the health of consumers receiving water from the city, it is considered that the requirements established by the state’s Department of Environmental Quality in rules for public drinking water systems.
(C) This chapter is adopted for the benefit of public health to water users receiving their water supply from the city by protecting the public water system from actual or potential contamination.
(Ord. 05-18-15, passed 5-18-2015)
(A) For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BACK PRESSURE BACKFLOW. The backflow of a higher pressure non-potable water supply into a lower pressure potable supply.
BACK SIPHONAGE BACKFLOW. Backflow of a non-potable supply into a potable water supply that is a result of negative or reduced pressure.
BACKFLOW. The flow, other than the intended direction of flow, of any foreign liquids, gases or substances into the city public water supply distribution system.
BACKFLOW PREVENTION DEVICE. A device to counteract back pressure or to prevent back siphonage.
CROSS-CONNECTION. Any physical arrangement whereby a public water supply is connected, directly or indirectly, with any other water supply system, sewer, drain, conduit, pool, storage reservoir, plumbing fixture or other device which contains or may contain contaminated water, sewage or other waste or liquid of unknown or unsafe quality which may be capable of contaminating the public water supply system of the city as a result of backflow.
(B) All definitions contained in state rules for public drinking water systems, IDAPA 58.01.08, as the same may hereafter be revised or amended, shall be considered as definitions within the meaning of this chapter.
(Ord. 05-18-15, passed 5-18-2015)
(A) No water service connection from the city water system to any premises shall be installed or maintained unless the city water supply is protected, as determined to be necessary by backflow prevention devices as required by rules and regulations of the state’s Department of Environmental Quality, the state rules for public drinking water systems and/or the AWWA PNS Cross-Connection and Control Manual and by this chapter.
(B) The installation or maintenance of a cross-connection which will endanger the water quality of the city water supply system is prohibited.
(C) Any such cross-connection now existing or hereafter installed is hereby declared a nuisance and shall be abated.
(D) The control and/or elimination of cross-connection with the distribution system of the city shall be in accordance with the rules and regulations of the state’s Department of Environmental Quality and the city.
(E) The City Council may establish requirements of cross-connection control within the city more stringent than state regulations.
(Ord. 05-18-15, passed 5-18-2015) Penalty, see § 51.99
Service to any property, landowner or water user receiving his, her or its water supply from the city water system shall be contingent upon compliance with all requirements of the rules and regulations of the state’s Department of Environmental Quality and of this chapter pertaining to cross-connections. Service shall be discontinued to any premises, water user or property owner for failure to comply with such regulations. Discontinued service will not be reestablished until the city has approved compliance by that particular premises, water user or landowner with such requirements of the rules and regulations of the state’s Department of Environmental Quality and of this chapter pertaining to cross-connections.
(Ord. 05-18-15, passed 5-18-2015)
(A) Required. Backflow prevention devices shall be installed where, in the judgment of the city, the nature and extent of activities or the materials stored on the premises would present an immediate and dangerous hazard to health and/or be deleterious to the quality of the water should a cross-connection occur even though such cross-connection does not exist at the time. Backflow prevention devices shall be installed under circumstances including, but not limited to, the following:
(1) Premises having an auxiliary water supply;
(2) Premises having internal cross-connections that are not correctable or intricate plumbing arrangements which make it impossible to ascertain whether or not cross-connections exist;
(3) Premises where entry is restricted or denied;
(4) Premises having a history of cross-connections being established or reestablished;
(5) Premises on which any substance is handled under pressure so as to permit entry into the public water supply or where a cross-connection could reasonably be expected to occur. This shall include the handling of process waters and cooling waters;
(6) Premises where materials of a toxic or hazardous nature are handled in such a way that, if back siphonage should occur, a serious health hazard might result; and
(7) Other premises, as specified by the city, where backflow prevention devices are required to protect the public water supply.
(B) Type of protective device. The AWWA PNWS Cross-Connection Control Manual, as it now exists or is hereafter amended, is adopted by the city by reference and shall be followed in determining the type and installation of cross-connection control devices. A copy of the current manual being used by the city shall be kept at the City Clerk’s office at City Hall.
(C) Place of installation. Backflow prevention devices required by this chapter shall be installed at the property line of the premises or at a location designated by the city. The device shall be located so as to be readily accessible for maintenance and testing and where no part of the device can become submerged.
(D) Installation. Backflow prevention devices required by this chapter shall be installed under the supervision of, and with the approval of, the city. Only backflow prevention devices approved by the American Association of Sanitary Engineers (AASE), International Association of Plumbing and Mechanical Officials (IAPMO) and the Uniform Plumbing Code (UPC) will be allowed.
(E) Inspection and testing. Backflow prevention devices installed pursuant to this chapter, except atmospheric vacuum breakers, shall be inspected and tested annually, or more often if necessary, by a state-certified backflow prevention device tester. Inspections, tests and maintenance shall be at the owner’s expense. Whenever the devices are found to be defective, they shall be repaired, overhauled or replaced at the owner’s expense. Annual test results and records of supporting data, or copies thereof, must be filed with the city’s Department of Public Works.
(Ord. 05-18-15, passed 5-18-2015)
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