Providing safe drinking water to the Singleton Local Government Area is our highest priority. In compliance with the Drinking Water Guidelines of Australia, we follow strict standards to ensure that the public drinking water supply remains safe.
Our customers also have a responsibility to help keep the public water supply safe. Here’s how:
Backflow is the backwards flow of water through a pipe. The normal direction of water flow is from the utility water main to homes or businesses. The backflow of water from home plumbing systems into community drinking water happens when water is pulled backwards due to a pressure loss in the utility main pipe or pushed back by a pressure source like a well pump.
Cross-connections are connections between drinking water and other water or fluids of unknown quality. A backflow preventer is required at each water service connection. If your water piping is connected to a source of water of undrinkable fluid, a cross connection has occurred.
The term backflow means any unintended reversal of flow of potentially contaminated water into the public water supply system.
Backflow can occur when:
To prevent backflow, a suitable backflow prevention device must be installed at a meter for all properties connected to the water supply. A properly working and maintained backflow device will prevent potentially contaminated water from flowing in the wrong direction.
The hazard rating of the processes carried out on your
property will determine what type of device you need to install. The three hazard ratings identified by AS/NZ 3500.1 are:
Because processes differ within each property type, you will need a backflow accredited plumber to determine your property’s hazard rating and which device is suitable for your property.
Customers who have a testable backflow device installed are required to have the device tested at least every 12 months.
Annual testing ensures that the backflow device continues to operate correctly. A defective device can:
It is an offence not to install, repair, maintain, replace or test a backflow device as requested by a notice issued by Council. If you do not comply, Council may carry out the required work and charge you for the service. Singleton Council may disconnect or restrict the customer from the public water supply system until they comply with the notice.
It is the responsibility of the property owner to pay for the device, installation and annual tests for testable devices.
A backflow accredited plumber must commission and test the backflow device. The inspection and maintenance reports and relevant fees must be applied to Singleton Council within two days of commissioning the devices to ensure compliance with Council requirements.