Backflow Prevention
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.
Backflow Applications:
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 (For additional contact information for the listed Testers call either NYS DOH at 845-794-2045 or WC DOH at 914-864-7331)
Find a Licensed Plumber
Report on Test and Maintenance of Backflow Prevention Device
Details:
RPZ Floor Drain Detail - 15.1
RPZ Sanitary Sewer Detail - 15.2
RPZ Sump Pump Detail - 15.3
RPZ Above Ground Detail - 15.4
Double Check Valve Detail - 16.1