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 Detailed Site Investigation (DSI) has been completed. The DSI involved sampling of soil, sediment, surface water, groundwater, fish, crustaceans, fruit and vegetables. A detailed report has been published and is available on the publications page. Given the tropical climate of the Northern Territory, additional water, soil, plant and animal sampling and analysis will occur during the first quarter of 2018 to predict how PFAS moves in the environment throughout the seasons. The results will be reported in a Supplementary DSI Report to be released in mid-2018.
Human Health and Ecological Risk Assessment
Based on the DSI findings, a Human Health Risk Assessment (HHRA) and Ecological Risk Assessment (ERA) have commenced. The assessments will evaluate potential PFAS exposure risks to the human population and ecology. An Interim Human Health Risk Assessment (IHHRA) has been developed to inform residents of potential risks for PFAS exposure or ingestion. For more information about the IHHRA and the recommendations on how to reduce PFAS exposure refer to the RAAF Base Tindal - Interim Human Health Risk Assessment factsheet and community engagement presentation.
The final HHRA and ERA are expected to be published and communicated to the community in the first half of 2018.
The Detailed Site Investigation report has been finalised. Click here to visit the publications page and download the report.
Community Walk-in Session & Shopfront
A community walk-in session and shopfront were held from 4-6 December. Click here for further information.
We've updated our frequently asked questions page, click here to read more.
Factsheets & Newsletters
Visit the publications page to see the December factsheets.
A new Katherine community survey has been released. The information provided will inform the Human Health and Ecological Risk Assessment.