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.
The sampling of soil, existing water bores and surface water on the bases has begun. New groundwater monitoring bores are also being installed in the investigation area to assist in gathering samples.
Once the DSI is complete, a detailed report including the sampling results will be prepared and provided to the local community, relevant government agencies, and regulatory bodies.
Human Health and Ecological Risk Assessment
Based on the initial findings conducted for the DSI, a Human Health and Ecological Risk Assessment (HHERA) has commenced. The HHERA will evaluate potential PFAS exposure risks to the human population and ecology, and inform actions to mitigate risks. The HHERA is expected to be complete and findings released by late 2018 and will be made available to the public.