Average household water use in Perth has fallen for the third time in as many years as the higher cost of drinking supplies and a run of exceptionally dry years force people to rethink their consumption habits.
Figures provided to _The West Australian _ show that in line with electricity consumption, householders in Perth are reining in their water use after decades of spiralling demand.
The Water Corporation figures reveal water use fell 3.5 per cent in the year to June 30 to 135,000 litres per person - a drop of more than 6 per cent compared with 2009-10.
Water use over the past 11 years had fallen about 30 per cent, equating to a saving of 95 billion litres, or the combined production of the Kwinana and Binningup desalination plants.
But Perth consumers continue to be the nation's top water guzzlers, with the average person using as much drinking water as an entire household in some Australian cities, including Melbourne.
On the back of Perth's fourth driest winter and questions over whether the city will get any more meaningful rain this year, the Water Corporation is stepping up plans to encourage efficiency.
The State-owned utility has started advertising in major newspapers imploring people to use less water.
The Barnett Government is also set to relaunch its multimillion-dollar Target 60 campaign.
The corporation wants average consumption to fall another 15 per cent by 2030.
Its water efficiency manager, Ben Jarvis, welcomed the latest figures but warned it would be increasingly difficult to ensure individual reductions in future.
"As we make savings one year it becomes harder to continue to reduce water use and find new ways to save in the next, though there are still opportunities to save," he said.
Water Minister Bill Marmion said he was concerned Perth continued to have the highest rate of water use in the country."Little things like shorter showers and fixing leaking taps can make a big difference to how much water is used," he said.
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