Residents in western Sydney are fighting plans to move contaminated soil from a former uranium processing factory to Kemps Creek.
The state government wants to clean up a former carbolic acid plant and uranium processing factory at Nelson Parade in Hunters Hill.
It is proposing that most of the contaminated soil will go into landfill at Kemps Creek, with any waste deemed hazardous to be sent to a storage facility at Lidcombe.
The deadline for public comment on the environmental assessment falls today and more than 3000 western Sydney residents have registered their opposition to the plan.
Penrith Labor councillor Pru Car from the Western Sydney Residents Against Radioactive Dumping group says the government is playing down the dangers.
"I mean they're saying that the hazardous element of it will be separated and sent to Lidcombe," she said.
"But the rest of it does contain elements of radioactivity and that concerns us greatly.
"Whatever waste is coming to Kemps Creek, it will be radioactive."
Ms Car says residents are worried western Sydney could become the city's dumping ground.
"People feel like every time the government has a problem they dump it on western Sydney," she said.
"People are very protective of the fact that Penrith council is a nuclear free zone.
"People are worried that this sets a precedent for any sort of waste to come to our community."
Political point scoring
Meanwhile, federal minister Chris Bowen has denied his criticism of the clean-up plan is about scoring political points in marginal seats.
The State Government has defended the plan, assuring residents it will be safe and arguing that Labor should have made a decision about the problem when it was in power.
Mr Bowen is visiting Kemps Creek with fellow federal Labor MP David Bradbury but he insists it is not about playing politics.
"This has been controversial for some time but it's a pretty simple proposition - why should western Sydney be the dumping ground for this waste?," he said.
"It needs to be monitored for 300 years.
"There are local residents who live very close to this who are very very upset and they have every right to be.
"Western Sydney Labor MPs will stand up for their interests and make representations against this."