Backflow Prevention

Cross-Connection Control

East Valley Water District currently maintains a Cross-Connection Control program under Title 17 of the State of California Administrative Code by conducting site surveys and inspections of customers' properties to determine if any potential hazards exist that would require the need of backflow protection. Cross-Connection surveys are conducted to evaluate any potential hazards that may exist for:

  • New properties 
  • Change of ownership in properties 

Cross-Connection also oversees the annual testing and maintenance of currently installed backflow prevention assemblies.

Backflow Prevention

East Valley Water District (EVWD) requires the annual testing and maintenance of all currently installed backflow devices. Click on the Annual Testing tab below to learn more annual backflow testing.

Cross-connection
  1. Annual Testing
  2. Cross-Connection Surveys
  3. Forms & Applications

Backflow Testing

East Valley Water District (EVWD) requires the annual testing and maintenance of all currently installed backflow devices. Beginning April 3, 2017, EVWD will be offering backflow device testing for only $60 per year, a service that can be prorated on your account at $5 per month. Backflow devices must be tested by certified backflow testers.

To participate in the program, complete a Backflow Testing Application (PDF). You may email the application or fax it to (909) 806-4228. Applications may also be dropped off at our offices located at 31111 Greenspot Road, Highland, CA 92346. For more information, please contact Water Quality at (909) 806-4222.