Also in Corowa:
COROWA Council is bracing for a public backlash from a long overdue clean-up of water mains starting on Monday.
The quality of Corowa’s town supply has been a constant source of complaints and the council acknowledges the problem worsens in summer when temperatures rise and usage increases.
Dirty water at the tap results from additional flows scouring sediment in the mains.
South Corowa is one of the worst areas affected in the town of 5600 people.
Its residents have regularly presented dirty linen to the council office front desk and produced samples and pictures of badly discoloured water from the tap.
Trunk mains have never been cleaned and swabbing of them using foam plugs will be done for a fortnight starting Monday.
Engineering director Nigel Sutton yesterday warned a council meeting about impending complaints.
“It is going to be a case of going backwards before we go forward,” he said.
“It will create some dirty water.
“We have advertised we are going to do the works and we are going to do a letterbox drop.
“But we aren’t going to get good press out of this — it is such a fundamental thing and hopefully it is a means to an end.”
Mr Sutton said sections of the mains will be shut down at various stages and when back on line the water quality could be at its worst.
It is known that water released from the $7 million treatment plant opened in 2001 isn’t to blame.
“Investigation of the water quality being produced by the treatment plant indicates good removal of iron and manganese contaminants,” Mr Sutton said.
“The quality is easily within the Australian Drinking Water Guidelines and the design parameters of the treatment plant.
“When the swabbing program is completed further assessment of the treatment plant and system performance will be undertaken.”
An extensive program of air scouring of reticulation mains has been undertaken over the last four years, but the trunk mains have never been cleaned.