Please watch the Backflow Prevention Overview Video for more information.
For your convenience, the Westchester Joint Water Works provides numerous forms and applications in PDF file format.
Application for Approval of Backflow Prevention Devices - Over 2 Inches
Application for Approval of Backflow Prevention Devices - 2 Inches & Under
Application for the Operation of an Existing Residential Underground Irrigation System
Lawn Sprinkler Permit Form
Certified Backflow Prevention Device Testers (Link at Bottom of WCDOH Cross Connection Control Webpage)
Licensed Plumbers with filed WJWW Backflow Applications
Report on Test and Maintenance of Backflow Prevention Device