Cross Connection / Backflow Prevention Program

The Texas Commission on Environmental Quality requires all public water systems to maintain a cross-connection control program that protects the distribution system delivering drinking water to your home or business.

• Must be tested upon installation and once annually. Additional testing may be required depending on the health hazard.

MHWSC's Backflow Testing Program ensures backflow prevention devices protect its water system from health hazards. Business and property owners must keep these devices in good working order and submit annual test reports. This program is mandated by the Texas Commission on Environmental Quality (TCEQ).

Testing backflow prevention assemblies

Backflow prevention assemblies are mechanical assemblies that can fail, the TCEQ requires testing all backflow prevention assemblies at installation by a TCEQ-licensed tester. MHWSC's Backflow Testing Program ensures backflow prevention devices protect its water system from health hazards. Business and property owners must keep these devices in good working order and submit annual test reports.

Notification letters are being sent to locations. If you receive a letter, you will need to hire a registered backflow tester. If your device was tested and did not pass, you will have 30 days to have the device repaired and retested.

How can I find out more information about backflow?

For any questions about the Backflow Prevention Program, please contact us by email at mhwsc@aol.com or by phone at (956) 565-2491.