PENRITH councillor Michelle Tormey has raised residents' concerns about feral dogs in Wianamatta Regional Park, near North St Marys.
This prompted a report by council officers, who consulted the area's main developer, Lend Lease, and the Office of Environment and Heritage.
The report stated that rangers found evidence of wild dog packs in 2012 but 12 pups were trapped and most even found homes.
Lend Lease, which has responsibility for the park until it reverts to public ownership, told the council there were no recent signs of wild dogs.
"The Office of Environment and Heritage has advised that wild dogs, thought to be responsible for some recent attacks on kangaroos, have been captured by Lend Lease contractors and removed from the site," the council report stated.
It said the office believed there were few wild dogs in western Sydney, although larger numbers found in the Blue Mountains had sometimes strayed.
"There's no specific risk-management plan for dogs for visitors to the park at present and no evidence that one is necessary," Environment and Heritage told the council.
"Wild dogs are generally shy, do their best to stay away from humans and there are no significant attack incidents in the many parks which have wild dogs.
"If evidence arises the first move is to remove them."
Cr Tormey thanked the council officers for the report but said she wanted more information.
"I was seeking data about uncontrolled dogs on the site but the responses don't seem to match up," she said.
She submitted more questions to the council.