Harpeth Valley Utilities District: backflow testing rules

Who must test

• All backflow devices are tested annually by Harpeth Valley Utilities District. Source.
• A reduced pressure backflow prevention device is required on the service line of all new commercial customers and irrigation systems. Source.

Notices and deadlines

• Devices are tested right after installation and then annually, or semi-annually for high hazard premises. Source.

How the report is filed

• After installation, the HVUD Cross Connections Department must be notified to set up an inspection to verify installation and test the backflow preventer. Source.

Fees

• HVUD's cross-connection control section has trained personnel who test the devices as needed without cost to the customer. Source.

If a test is missed

• Customers are given thirty days to make cross-connection corrections; on non-compliance HVUD takes immediate steps to discontinue water service until corrections are made. Source.

Program

• HVUD's Cross Connections and Backflow link (www.hvud.com/cross-connection-backflow) opens a PDF with FAQs, its reduced pressure installation criteria and its cross-connection control plan. Source.

Read October 6, 2026. Program page: hvud.com.

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