Backflow Prevention Program
The Backflow Prevention Program is administered and enforced in accordance with Schedule 10 of the Land Use, Building and Community Administration Bylaw.
The purpose of the program is to protect the potable (drinking) water supply from contamination and pollution. The common cross connections that require backflow prevention assemblies are underground irrigation systems, commercial boiler systems, residential and commercial boiler systems with anti-freeze, and fire suppression systems.
The most common cross connections found on residential properties are a garden hose connected to a pesticide/fertilizer sprayer or pressure washer; a garden hose left submerged in an ornament pool; or, an in-ground lawn watering (irrigation) system.
A backflow prevention assembly, or backflow device, is a mechanical device that prevents the backflow of water into the potable water system. These devices have internal seals, springs, and moving parts that are subject to plugging by grit, fouling, and wear over time; therefore, they require annual inspection, maintenance, and testing. These devices can only be tested by a British Columbia Water and Waste Association (BCWWA)-certified backflow tester.
It is the responsibility of the property owner to employ a certified tester to perform the test each year. The test report (see form link below) must be submitted to the University Endowment Lands (UEL) Administration Office. Failure to comply may result in an interruption of water service and municipal services to the property.
Existing backflow devices that are tested after September 30th of each year are subject to retesting in the Spring of the following year. This policy does not apply to new devices.
Forms & Resources
| UEL Backflow Test Report Form |
| BCWWA Cross Connection Control page |
| IIABC Cross Connection Control page |