Hi Quality- Bulla, page-64

Can you indicate where it is required by EPA VIC for PASS to be treated prior to disposal.
The following information identifies the processes landfills must work within.
EPA publication https://www.epa.vic.gov.au/~/media/Publications/655 1.pdf

This is under Victoria Law the required IWRG - http://www.gazette.vic.gov.au/gazette/Gazettes1999/GG1999S125.pdf

I know it is difficult to follow if you are not experienced in law and compliance.

Punter is correct the Metro Tunnel earlyworks was won by EPH and disposed at Hi-Quality. The second phase (early works of the main works) is being transported and disposed at Lantrak.
Both John Holland and Lend lease has a strict auditing process that companies have to qualify prior to being an approved supplier. Both Hi-Quality and Lantrak have been approved.