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PFAS Investigation &
Management Program

RAAF Base Darwin

RAAF Base Darwin

PFAS Investigation & Management

In November 2018, Defence completed a detailed environmental investigation into the presence of per- and poly-fluoroalkyl substances (PFAS) on and in the vicinity of RAAF Base Darwin.

All findings of the investigation are available on the publications page, including detailed reports and factsheets.

Defence has used the findings of the investigation to develop a PFAS Management Area Plan. This plan informs the activities Defence will undertake to manage, monitor and reduce the risks of PFAS exposure on, and around, the Base.

Investigation Timeline

More information about the investigation stages is available on the investigation and management process page.


PFAS Management Area Plan

Published
Jul 2019

The PFAS Management Area Plan informs the activities Defence will undertake to manage, monitor and reduce potential risks of PFAS exposure on, and around, the Base.

The PFAS Management Area Plan informs the activities Defence will undertake to manage, monitor and reduce potential risks of PFAS exposure on, and around, the Base.


Supplementary Detailed Site Investigation
Detailed environmental investigation

Complete
Nov 2018

The Supplementry Detailed Site Investigation involved additional sampling on-Base, to monitor variations between wet and dry seasons.

The Supplementry Detailed Site Investigation involved additional sampling on-Base, to monitor variations between wet and dry seasons.


Ecological Risk Assessment
Detailed environmental investigation

Complete
June 2019

The purpose of the Ecological Risk Assessment is to evaluate potential exposure-risks to plants and animals, within the Investigation Area.

The purpose of the Ecological Risk Assessment is to evaluate potential exposure-risks to plants and animals, within the Investigation Area.


Human Health Risk Assessment
Detailed environmental investigation

Complete
Jun 2018

The purpose of the Human Health Risk Assessment is to evaluate potential exposure-risks to people, within the Investigation Area.

The purpose of the Human Health Risk Assessment is to evaluate potential exposure-risks to people, within the Investigation Area.


Detailed Site Investigation
Detailed environmental investigation

Complete
Feb 2018

The Detailed Site Investigation involved sampling of soil, sediment, surface water and groundwater, to better understand how PFAS moves through the environment.

The Detailed Site Investigation involved sampling of soil, sediment, surface water and groundwater to better understand how PFAS moves through the environment.


Preliminary Site Investigation
Detailed environmental investigation

Complete
Oct 2016

The Preliminary Site Investigation involved a review of the historical use of firefighting foams on-Base to identify potenital sources of PFAS contamination.

The Preliminary Site Investigation involved a review of the historical use of firefighting foams on-Base to identify potenital sources of PFAS contamination.


Preliminary Sampling Program
Pre-investigation sampling

Complete
Sep 2016

The Preliminary Sampling Program was undertaken at 12 Defence sites, including RAAF Base Darwin. Based on the findings of this program, the 12 sites involved progressed to Detailed Environmental Investigations.

The Preliminary Sampling Program was undertaken at 12 Defence sites, including RAAF Base Darwin. Based on the findings of this program, the 12 sites involved progressed to Detailed Environmental Investigations.