Backflow Prevention

What is a backflow device?
Backflow devices are required by State law where fire or irrigation services are installed. The device prevents back siphonage and backpressure into the main water supply, protecting the water supply from cross contamination.

Testing: All installed devices must be tested on an annual basis. Each year, customers will receive a reminder notice along with a certified list of testers. Failure to have the device tested could result in the termination of service.

Click Here for the Guide for Private Domestic Well Owners
Click Here for Test and Maintenance Report

Cross-Connection Control Specialist Certifications – SWRCB June 17 2025
Backflow Assembly Tester Certifications – SWRCB June 17 2025
BSI – BACKFLOW TESTER LIST January 2026

Click Here for the Cross-Connection Survey

Starting July 1, 2025, backflow assembly testers and cross-connection control specialists must be certified by a California-recognized certification organization to comply with the Cross-Connection Control Policy Handbook (CCCPH). Certifying organizations can apply for recognition through the State Water Resources Control Board (SWRCB). For more information please see the State Water Resource Control Board.

Beginning July 1, 2027, only certifying organizations accredited by ANSI under ISO/IEC 17024 will be accepted for compliance with CCCPH requirements. This accreditation applies to certification but not to training courses.

Additionally, the city will no longer accept San Bernardino County backflow certification after July 1, 2026.

City of Redlands – Cross Connection Control Plan

For more information please contact:

Cross Connection Control Inspector
Phone:(909) 936-0300 –  David Figueroa
Email: crossconnection@cityofredlands.org

All backflow test results must be submitted to BSI. https://bsionline.com/