Victoria's environmental regulator has rescinded approvals for another two toxic waste dumps connected to the West Gate tunnel project.
Earlier this week, the Environment Protection Authority (EPA) admitted it had not met state regulations when it approved a proposal to dump contaminated soil from the project at a site in Bacchus Marsh.
The soil had been contaminated with per-and poly-fluoroalkyl substances, better known as PFAS — dangerous chemicals that have been widely used in firefighting foam.
The authority reversed the approval for the Bacchus Marsh dump on Tuesday, and today the two remaining landfill sites connected to the project at Ravenhall and Bulla also had their approvals revoked.
The EPA said in a statement that the Ravenhall and Bulla plans had been "thoroughly reviewed and approved on the basis the EPA was satisfied they met the strict conditions designed to protect human health and the environment".
"That has not changed," the statement said.
However, the authority said "for the avoidance of any doubt", new applications for all three sites would need to be submitted.
The latest development is another setback to the West Gate Tunnel project, which is facing billions of dollars in cost blowouts and is running a year behind schedule.
