Preliminary Site InvestigationFurther information on the investigation process can be found at the investigation process page.
The first stage of the investigation, the Preliminary Site Investigation (PSI), has been completed.
Detailed Site Investigation
The second stage of the investigation, the Detailed Site Investigation (DSI), started in April 2017 and involves sampling of soil, sediment, surface water (land and creeks) and groundwater to collect information and better understand how PFAS moves through the local environment.
An Interim Detailed Site Investigation Report has been published, with the findings presented to the community in December 2018.
The Final Detailed Site Investigation Report is expected to be published in the first-half of 2019.
Human Health Risk Assessment and Ecological Risk Assessment
Based on the initial findings of the investigation, a Human Health Risk Assessment (HHRA) and Ecological Risk Assessment (ERA) have commenced.
In December 2018, Defence published an Interim Human Health Risk Assessment (HHRA).
The final versions of the Human Health Risk Assessment and Ecological Risk Assessment are expected to be completed in the first-half of 2019. These reports will evaluate potential exposure pathways to people, plants and animals. The findings will be used to inform potential actions to reduce PFAS exposure.