About 200 tonnes of firefighting foam laced with PFAS was used to put out the Coode Island fire. A former petrol storage site in Spotswood and an old textile factory in Brooklyn that are within the West Gate Tunnel project area are also believed to be contaminated with PFAS. A microstructural study of Coode Island Silt (CIS), a soft silty clay from the Melbourne area of Australia, stabilised with slag lime is reported. PFAS in Queensland About PFAS Per and poly-fluoroalkyl substances (PFAS) are a group of manufactured chemicals that have been used in a broad range of products, most commonly in firefighting foams. The PFAS contaminated soil is a toxic legacy from the Victorian 1991 Coode Island fire, where huge volumes of PFAS fire fighting foam were used. In more recent years, PFAs have been discontinued from use by fire authorities and there is evidence linking PFA exposure to detrimental outcomes for human health and the environment. In 6/3/2020 it reported “Secret borehole tests reveal PFAS contamination in soil near Coode Island – where a toxic inferno was triggered by a chemical explosion in 1991 — is so severe that dumping the waste in landfills would be impossible without very expensive treatment. So what is the John Holland-CPB doing about it? It comes as internal documents show two separate PFAS stockpiles – made up of 4000 tonnes of soil – were kept outdoors, under a sheet of tarpaulin, on tunnel work site near Coode Island last year. Very little. Different geological conditions along the alignment can determine groundwater quality and levels, the possible presence of heavy metals and gases, and the potential for acid sulfate soil and acid sulfate rock. Section 6 of Technical Appendix Q years ago to Coode Island Silt deposited within the last 10,000 years. Coode Island is a contamination hotspot after 200 tonnes of firefighting foam laced with PFAS was used to put out a toxic fire sparked by a chemical explosion in 1991. The tunnel project is now at least 10-months behind schedule and the cost has blown out by $3 billion. The soil is no longer located by Footscray Rd. The CFMEU said it believed it was “simply moved to other parts of the project”. Slag lime is a blend of 80–85 wt% slag, 15 wt% hydrated lime, Ca(OH) 2 and 3–8 wt% gypsum CaSO 4 .2H 2 O, and is typically used for soil stabilisation in … In order to accept PFAS contaminated waste, an amendment to the Moorabool Planning Scheme is required. PFAS can be found in products such as fire-fighting foams. The chemicals were used to put the fire out. The West Gate Tunnel will be drilled under the site of the 1991 Coode Island chemical storage facility fire. PFAS is known to be in soil in the area due to a huge industrial fire at Coode Island in West Melbourne in 1991. PFAs were historically used as an ingredient in fire extinguishing foam, including to control the chemically-fuelled 1991 Coode Island fire. The soil would be transported from the troubled West Gate Tunnel Project — a site near the Coode Island chemical fire where 200 tonnes of firefighting foam laced with PFAS was used to extinguish the blaze. In order to accept PFAS contaminated waste, an amendment to the Moorabool Planning Scheme is required. That's why we say it’s time for John Holland-CPB to come clean and tell us just how dangerous these toxic soils are. The soil around Coode Island is also badly contaminated with PFAS, the firefighting foam linked to cancer clusters, birth defects and other adverse health outcomes. The PFAS contaminated soil is a toxic legacy from the Victorian 1991 Coode Island fire, where huge volumes of PFAS fire fighting foam were used. The site of the 1991 Coode Island chemical storage facility fire John Holland-CPB doing about it the 1991! 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