Backflow Device
Applying for a backflow prevention device permit
Please provide the follow to get started:
- Building Permit Application
- Owner’s Authorization
- Permit fee (based on number of devices, minimum $146.00)
- Copy of Durham Region’s cross connection survey (completed by Plumber on the Durham Region’s list of qualified testers)
- Copy of the Manufacturer’s form for sizing the expansion tank
- Copy of Durham Region’s notice letter to install the device(s)
- Name of Plumber and Ontario College of Trades Membership Number
- Size and type of device
Notes:
1. Devices 2-1/2” and greater requires engineered drawings and general review.
2. Additional information may be required during the review of submitted drawings and documents.
3. All back-flow devices being installed on fire systems require engineered drawings and general review regardless of size.