BUILDING DEPARTMENT 1584 Hadley Avenue N Oakdale, MN 55128 Phone: 651-739-5150 Fax: 651-730-2820 www.ci.oakdale.mn.us

BACKFLOW PREVENTION INFORMATION

The 2015 Minnesota Plumbing Code parts 603.5.23.4 requires annual testing and reporting on the following backflow prevention devices.

Devices that need to be tested:  Reduced pressure principal backflow preventers.  Reduced pressure detector fire protection backflow prevention assemblies.  Double check valve backflow prevention assemblies.  Pressure vacuum breaker (PVB) backflow prevention assemblies. This new code only applies to new PVB installed after the code adoption date of January 23, 2016.  Double check detector fire protection backflow prevention assemblies.  Spill resistant pressure vacuum breakers.

Devices that do not need to be tested:  Atmospheric vacuum breaker.  Anti-siphon fill valve.  Vacuum breaker wall hydrant.  Backflow for carbonated beverage dispenser.

Responsibility of the municipality: The municipality is responsible for notifying owners of backflow devices of the need for initial and annual testing of backflow devices. The plumber can do this when installing a new device.

Responsibility of the owner: The owner of the backflow prevention device is responsible for making sure the backflow device is tested upon installation and at least annually thereafter. The owner is responsible for arranging a certified backflow device tester to test the device at least annually.

Responsibility of the plumbing contractor: The plumbing contractor is responsible for informing the building owner of the need to have their backflow devices tested upon installation and at least annually thereafter.

Responsibility of the backflow tester:  The backflow device tester is responsible for testing the backflow device and tagging it with the testing date, tester signature and backflow certification number.  Written records of testing and maintenance must be maintained and submitted to Oakdale within 30 days following the test.