TruEnergy has been given permission to continue pumping floodwater from the Yallourn coal mine into the Latrobe River, despite environmental concerns.
TruEnergy has been pumping billions of litres of water into the Latrobe River since flood waters swamped Yallourn's open cut coal mine in June.
Environment groups and farmers along the Latrobe River have raised concerns about downstream flooding and the potential contamination of the river.
TruEnergy was recently required to apply for another emergency discharge approval from the Environment Protection Authority (EPA).
The EPA has now granted approval for another four months of pumping.
The agency acknowledges there has been an increase in turbidity along the Latrobe River, but says the discharged water poses a low risk to fish and the river ecology and the Gippsland Lakes.
© ABC 2012
01:24 EST Parts of Sydney and the Blue Mountains were blanketed by large hailstones after a severe thunderstorm moved across the area this afternoon, causing five warehouses to collapse.