Steven Wardill
Courier Mail
ALMOST $40,000 worth of water a day is being flushed by the State Government as it refuses to use its flagship recycling pipeline to supply households.
The Courier-Mail can reveal 33 million litres of water a day are being passed through the high-priced purification process and then ditched in the Brisbane River.
The 33ML would be valued at nearly $15 million a year if sold to council-run retailers at the current wholesale price, rising to in excess of $73 million based on the rate at which it is sold on to households.
The revelation comes as southeast residents are encouraged to conserve water while being hit with higher bills to pay off the pipeline and drought-proofing infrastructure.
The waste – equivalent to about 12 Olympic-sized swimming pools a day – comes after the Bligh Government dropped a pre-election plan for permanent use of recycled water.
The waste is set to continue until commercial customers are found for recycled water or a decision is made to mothball most of the $2.5 billion pipeline's treatment plants.
Department of Environment and Resource Management director-general John Bradley yesterday conceded the level of water loss would continue until two of the plants were completed at the end of the year.
However, Mr Bradley insisted that given the production costs were $300 a ML, or $3.5 million a year, this was "value for money" for a project that eventually could supply up to 232ML a day.
"So proceeding to go through and commission these plants makes good economic sense in terms of providing a strategy that is helping us drought-proof southeast Queensland," he said.
Mr Bradley said purifying the water also meant 86 tonnes of phosphorus from sewage was not pumped into Moreton Bay.
However, Opposition water spokesman Jeff Seeney said the pipeline was an " absolute white elephant" forced on Queenslanders by a Government that had done nothing about water for a decade.
"The wastewater treatment plants were the result of political panic from a Government that didn't plan to build the infrastructure at the right time," he said. "And they will be an economic burden for generations to come.
"The fact is that Queenslanders are not only paying for the interest on the $2.5 billion it cost, they are now paying a weekly cost for water that is actually wasted."
The pipeline is producing 75ML a day on average with Government-owned power stations taking about 42ML. Dam levels are not expected to drop to 40 per cent, triggering recycled water use, until 2013.
Mr Bradley said the water grid manager would have to decide how the pipeline would be operated once the final two plants were commissioned.
"You can mothball them and pickle the membranes," he said.
"Or you can operate them at low load and cycle through the membranes."
He said negotiations with some industrial customers were nearing completion.