The standing warning for blue-green algae is the latest string of water-related issues for the lake.

More than two weeks after Wagga City Council issued the red alert, environment and regulatory services manager Mark Gardiner said the status of blue-green algae remains unchanged despite recent rainfall events.

"With only minor inflows from recent rainfall, we are not anticipating any improvements in blue-green algae levels," he said.

Mr Gardiner said the council will continue to monitor the lake and notify the community once the warning has been lifted.

However Wagga councillor Paul Funnell said the current state of the lake is "terrible" with a large amount of vegetation regrowth occurring on the ever-expanding foreshore.

Cr Funnell said the clean up needs to be handled by the council with a matter of urgency. He said the low water levels means the council could deal with the problem now, but once the lake refills it will be too late.

"The lake will start to fill and we will get all this extra debris and it will choke up the system," he said,

"It will rot and become a danger to use because there is regrowth under there and someone will get impaled, tangled up and more bio-organic material will rot down and cause more blue-green algae."