Kay

I lived there for 3 years and started having vertigo, blocked nose and headaches that no ENT could fix, this only stopped when I moved.
Later I found out through research that the suburb was releasing toxic gasses constantly. They used to manufacture the chemical weapon "agent orange" in Rhodes during the Vietnam war and dumped it in the bay.
The bridge doesn't allow traffic because they were afraid the vibrations would disrupt the toxins in the bay. The bay pollutes 20km downstream hence the fishing ban allow the parramatta river.
40-60 million litres of toxic lecheates from the toxic mound are processed 3 mins down the road every year. 10% doesn't get captured and keeps leaking in the soil. It contamines the water supply and releases odors and gasses constantly.
The developers claimed they cleaned it up but it's impossible. The whole suburb is built on a landfill and neighbours a toxic bay.
Do some reserach and you'll find the same.