“During a major fire, the demand on the town water supply is likely to exceed the capacity of the supply system,” Goulburn Valley Water managing director Steve Capewell said.
“This means water pressure is likely to be significantly reduced, or in some cases, without water entirely.
“This may impact on your ability to fight fires as well. Alternate water supplies could include water tanks, dams, swimming pools, rubbish or wheelie bins, even bathtubs or laundry tubs.”
Dr Capewell said people could also consider having an independent pump in case power was lost, which could affect pumped systems.
Parts of GVW’s service area have been identified by CFA as high fire danger areas.
According to the GVW website, staff do their best to prepare for any emergencies, but cannot guarantee uninterrupted water supply or normal pressure during a major fire.
Along with supply, serious bushfires could also affect drinking water quality.
On days of significant fire risk, GVW suggests customers fill large containers, or bathtubs, as part of preparations.
“When the fire risk is severe, extreme or catastrophic we encourage people to have at least 10 litres per person (one bucket) available, at a minimum,” Dr Capewell said.
Individual fire plans should identify reliable alternative water sources such as a large dam, irrigation channel or creek.
Only residents who are fully prepared should consider staying to defend their property, according to GVW.
The safest option is to leave early and be well away from the threat.
In an emergency, GVW works with the CFA, the Department of Energy, Environment and Climate Action and other agencies to provide firefighters with quick access to hydrants and access to water supply.