Territory Stories

Defence per-and poly-fluoroalkyl substances (PFAS) environmental management preliminary sampling program. RAAF Base Darwin, NT.

Details:

Title

Defence per-and poly-fluoroalkyl substances (PFAS) environmental management preliminary sampling program. RAAF Base Darwin, NT.

Creator

GHD Pty Ltd

Collection

E-Publications; E-Books; PublicationNT; 31/34005

Date

2016-09

Location

RAAF Base Darwin

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).; The objective of the investigation was to test for the presence of PFAS in environmental media, and to provide an indication of the potential for PFAS to have migrated off-site via surface water. This was to assist Defence to meet its objective to facilitate the early identification of potential exposure risks to off-site users of groundwater for the purpose of prioritising any future investigations. This investigation is intended to be a snapshot of the potential off-site presence of PFAS only, and should be regarded as a preceding step to any future preliminary investigations that would be conducted in accordance with the approaches specified by the National Environmental Protection (Assessment of Site Contamination) Measure (ASC NEPM).

Notes

This report has been prepared by GHD for Jones Lang LaSalle and Department of Defence and may only be used and relied on by Jones Land LaSalle and Department of Defence for the purpose agreed between GHD and Jones Lang LaSalle and Department of Defence as set out in Section 1.2 of this report.

Table of contents

Introduction -- Background -- Objective -- Scope -- Limitations -- Assumptions -- Methodology -- Sample locations -- Sampling methodology -- Laboratory analysis -- Adopted screening levels -- Results -- Aquifer characteristics, uses & restrictions -- Field program and collected data -- Analytical results -- Data quality.

Language

English

Subject

Foam; Environmental aspects; Fire extinguishing agents; Persistent pollutants; Bioaccumulation

Publisher name

Jones Lang LaSalle

Place of publication

Darwin

Series

31/34005

Format

1 volume (various pagings) : colour map, tables ; 30 cm.

File type

application/pdf.

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/299599

Citation address

https://hdl.handle.net/10070/382759

Page content

7 of 7:Page Work Order : :Client ES1612361 GHD PTY LTD 31 34005 05:Project Analytical Methods Method DescriptionsMatrixMethod In house: Referenced to USEPA SW 846 - 8015A The sample extract is analysed by Capillary GC/FID and quantification is by comparison against an established 5 point calibration curve of n-Alkane standards. This method is compliant with the QC requirements of NEPM (2013) Schedule B(3) TRH - Semivolatile Fraction EP071 WATER In house: Direct injection analysis of fresh and diluted saline waters. Analysis by LC-Electrospray-MS-MS, Negative Mode using MRM. PFOS and PFOA EP231 WATER In house: Direct injection analysis of fresh waters after dilution (1:1) with methanol. Analysis by LC-Electrospray-MS-MS, Negative Mode using MRM. Per- and Polyfluoroalkyl Substances (PFAS) by LCMSMS EP231X WATER Preparation Methods Method DescriptionsMatrixMethod In house: Referenced to USEPA SW846-3005. Method 3005 is a Nitric/Hydrochloric acid digestion procedure used to prepare surface and ground water samples for analysis by ICPAES or ICPMS. This method is compliant with NEPM (2013) Schedule B(3) Digestion for Total Recoverable Metals EN25 WATER In house: Referenced to USEPA SW 846 - 3510B 100 mL to 1L of sample is transferred to a separatory funnel and serially extracted three times using 60mL DCM for each extract. The resultant extracts are combined, dehydrated and concentrated for analysis. This method is compliant with NEPM (2013) Schedule B(3) . ALS default excludes sediment which may be resident in the container. Separatory Funnel Extraction of Liquids ORG14 WATER A 5 mL aliquot or 5 mL of a diluted sample is added to a 40 mL VOC vial for sparging.Volatiles Water Preparation ORG16-W WATER


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