Backflow Testing and Cross Connections
This page is intended to help you understand our cross connection Control Program
In 1996 the Clean Drinking Water Act initiated laws for Cross Connections. The State of Idaho code for Cross Connection requires that all homeowners and businesses have testable backflow devices on sprinkler systems and that all outside hose bibs are anti-siphon. EEWA requires that all homeowners have their devices tested annually.
How do I comply with the State code?
Beginning in 2025, association members will be responsible for coordinating their own backflow testing. A satisfactory test report must be submitted to the association secretary no later than June 30th of each year. Homeowners who do not provide this will be at risk of of having their water shut off until a successful test report is provided.
Association members are free to use the certified backflow test company of their choice.
For details on the backflow testing process please refer to this Backflow Brochure.
Links to local Backflow Testing Contractors:
Backflow Testers Registered in the City of Post Falls
Backflow Testers Registered with the City of CDA
Cross Connection and Backflow Devices
Any physical arrangement whereby a public water system is connected, directly or indirectly, with any other non-potable water system, sprinkler, sewer, drain, conduit, pool, storage reservoir, plumbing fixture, or other device which contains, or may contain, contaminated water, sewage, or other waste 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 change-over devices, or other temporary or permanent devices through which, or because of which, backflow may occur are considered to be cross connections. Example Devices
State of Idaho Cross Connection Requirements
IDAHO AMINISTRATIVE CODEIDAPA 58.01.08
Department of Environmental Quality Public Drinking Water systems
A)An inspection once a year of all facilities listed in subsection 900.02 (Table 2) to locate cross connections and determine required suitable protection.
B)Required installation and operation of adequate backflow prevention devices. A list of minimum recommended devices for various facilities is provided in sub section 900.02 (Table 2).
C)Annual inspections by American water Works Association-certified tester, or equal, of all installed backflow prevention devices to insure operability.
D)Discontinuance of service to any facility where suitable backflow protection has not been provided for a cross connection.
E)If double check valves and/or reduced pressure principle backflow prevention devices are used, they must pass a performance test conducted by the University of Southern California Foundation for Cross Connection Control and Hydraulic Research or meet American Water Works Association C-510 or C-511 standard or another equal test approved by the Department.
F)If atmospheric vacuum breakers and pressure vacuum breakers are used, they shall be marked approved by the International Association of Plumbing and Mechanical Officials (IAPMO) or by the American Society of Sanitation Engineers (ASSE).
G)Resilient seated shutoff valves shall be used after the effective date of these rules when double check valves, reduced pressure backflow prevention devices, and pressure vacuum breakers are installed.