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PFAS Investigation &
Management Program

RAAF Williams (Laverton)

RAAF Williams (Laverton) PFAS Investigation


Summary of the Investigation

RAAF Williams (Laverton)

Note: This investigation relates to RAAF Williams (Laverton). It does not extend to RAAF Base Point Cook.

In 2017 Defence conducted a Preliminary Site Investigation into the use and storage of legacy firefighting foam at RAAF Williams (Laverton). The findings of the Preliminary Site Investigation are available on the publications page. Based on the findings of Preliminary Site Investigation, it has been determined that a detailed environmental investigation is required to further assess the nature and extent of per- and poly-fluoroalkyl substances (PFAS) at and surrounding RAAF Williams (Laverton).

The objective of this environmental investigation is to identify the nature and extent of PFAS in the environment from the use of legacy firefighting foam at the Base.

There are three main stages to the investigation:

Preliminary Site Investigation
The Preliminary Site Investigation has been completed. This stage involved:
  • Obtaining, reviewing and consolidating existing reports and information,
  • Interviews with Defence personnel,
  • Site inspections, and
  • Limited soil, groundwater, surface water and sediment sampling.
Detailed Site Investigation
The Detailed Site Investigation will soon commence and will involve sampling on-base and in the surrounding region. A detailed report will be prepared and shared with relevant government and regulatory bodies as well as the community.

Human Health Risk Assessment and/or Ecological Risk Assessment
The Detailed Site Investigation findings will be used to inform the requirement to conduct a Human Health Risk Assessment and/or Ecological Risk Assessment. If required, the assessments will evaluate potential exposure pathways to people, plants and animals and will be used to inform potential actions to reduce PFAS exposure.

Further information on the investigation process can be found at the investigation process page.
The findings from the investigations will be used to identify and prioritise site specific management actions to address PFAS contamination.

Defence is committed to regularly updating the community throughout the investigation. As well as community engagement events, updates are provided through the project website, newsletters and factsheets as new information becomes available.