Killeen Homeowners: Here Is What Your Annual Backflow Test Actually Protects You From

The City of Killeen manages its Cross-Connection Control Program through BSI Online (Backflow Solutions, Inc.), a third-party digital compliance platform used by municipalities across Texas. This shift away from paper records has a direct impact on every property owner in the city.

Here is how it works in practice. BSI sends automated annual notices to property owners when their backflow test is due. Once your device has been tested, your licensed tester must submit the results directly through the BSI portal. If this does not happen, the city does not have a record of your compliance, regardless of whether a test was actually performed.



The stakes are significant. Killeen city ordinance gives the city authority to terminate water service to properties that fall out of compliance with the Cross-Connection Program. A licensed local tester who knows the BSI submission process is not just convenient, they are essential to making sure your compliance actually registers with the city.

Many properties in and around Killeen, especially those in suburban and rural areas, use a combination of city water and an on-site septic system. If your property falls into this category, pay close attention.

Under Texas Commission on Environmental Quality (TCEQ) regulations, the presence of a septic system automatically classifies your irrigation system as a "high-hazard" cross-connection. This classification is not a suggestion. It carries a specific legal requirement: your backflow preventer must be a Reduced Pressure Zone (RPZ) assembly, not a standard Double Check Valve Assembly (DCVA).

RPZ assemblies provide a higher level of protection because they include a relief valve that physically expels water if either check valve fails. For properties where harmful bacteria or wastewater from a septic system could otherwise siphon into a drinking water supply, this added safeguard is not excessive. It is the regulatory minimum. If you have a septic system and are not sure what type of backflow preventer you have installed, your annual test is a good time to find out.

Two failure causes are especially common in Central Texas, and both tend to go undetected without professional testing.



Freeze damage is the first. Sudden winter freezes, which are not unusual in the Killeen area, can crack the bronze or plastic body of an outdoor backflow preventer if it is not properly insulated. Even a hairline fracture can compromise the assembly's ability to prevent backflow without any visible water leak at normal operating pressure.

Water hammer is the second. When lawn irrigation solenoid valves shut off rapidly, they create pressure spikes that travel through the pipes and can destroy the internal check valves in a backflow assembly. Because both of these failure types occur inside the device, there is no way for a homeowner to detect them without the diagnostic gauges a licensed tester uses during an annual inspection.