Fullerton Cove Residents' Action Group will host a public candidates' forum at Williamtown on Monday.

Each candidate will be given five minutes to tell the audience their plans for the federal seat of Paterson and how they plan to tackle the per-and poly-fluoroalkyl substances (PFAS) environmental crisis.

Fullerton Cove Residents' Action Group president Lindsay Clout said residents had "lost count" of the number of politicians they had met with to discuss the "soul destroying" situation.

"From Marise Payne to Bill Shorten, the list is long," he said. "Heartfelt stories have been laid on the line and each politician, to their credit, has listened, said a solution is coming or promised some action, but nothing has eventuated. We have lost faith."

Each candidate and party leader has been invited to attend. It's expected Labor, Liberal, The Greens, One Nation, United Australia and Christian Democratic parties will be represented.

Mr Clout said residents wanted candidates to commit to the findings of the latest senate inquiry into the unfolding environmental crisis.

This includes compensating people whose property values have fallen, banning the toxins and appointing a coordinator-general to manage the contamination.

"The current government has forgotten about Williamtown," Mr Clout said.

"The inconvenient truth is just over the fence, a stones throw from our backyards, where all those fancy new jets are housed, remediation, clean up and economic propserity it at fever pitch.

"Sadly, the Department of Defence has lived up to the stereotype of the ultimate self-centred, bureaucracy laden, heartless machine we were warned they would be when we discovered their mess."

The public forum begins at 6pm on Monday at the Williamtown Union Hall, 2 Sandeman St, Williamtown. All welcome.