1. surface water (october to december 2017)€¦ · 1. surface water (october to december 2017)...

125
1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various surface water bodies within the investigation area. A review of the field quality assurance and quality control results has been prepared for each nominal event, and a collated review of internal laboratory quality assurance/quality control has been undertaken combining all three events. 1.1. October 2017 1.1.1. QA/QC General Precision / Accuracy ITEM QUESTION YES NO (Comment below) 1 Was a NATA registered laboratory used? 2 Did the laboratory perform the requested tests? 3 Were the laboratory methods adopted NATA endorsed? 4 Were the appropriate test procedures followed? 5 Were the reporting limits satisfactory? 6 Was the NATA Seal on the reports? 7 Were the reports signed by an authorised person? Comments Nil Precision / Accuracy of the Laboratory Report Satisfactory Partially Satisfactory Unsatisfactory Sample handling ITEM QUESTION YES NO (Comment below) 1 Were the sample holding times met? 2 Were the samples in proper custody between the field and reaching the laboratory? 3 Were the samples properly and adequately preserved? This includes keeping the samples chilled, where applicable. 4 Were the samples received by the laboratory in good condition? Comments Nil RAAF Base Darwin Supplementary DSI PFAS Coffey 754-MELEN199421-R10 Appendix J - Page J1

Upload: others

Post on 29-May-2020

4 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1. SURFACE WATER (October to December 2017)

Surface water sampling was undertaken in October, November and December 2017 from various surface water bodies within the investigation area. A review of the field quality assurance and quality control results has been prepared for each nominal event, and a collated review of internal laboratory quality assurance/quality control has been undertaken combining all three events.

1.1. October 2017

1.1.1. QA/QC General

Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J1

Page 2: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.1.2. Field QA/QC

Type of QA/QC Samples Collected

Primary Samples 34

Days of sampling 2

Field Duplicates (at least 1 in 20 samples) 4 intra lab + 4 inter lab

Trip Blanks (at least 1 per sampling event) 2

Equipment Rinsate (at least

1/day/matrix/equipment)

0

Samples Analysed

Thirty four samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over two days of sampling. Four duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Four triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 1 and ESDAT export table following Section 1.5.

There were 112 duplicate pair analyses for PFAS compounds and 96.4% were reported within the acceptance target of less than 30 % RPD. There were 112 triplicate pair analyses for PFAS compounds and 98.2 % were reported within the acceptance target of less than 30 % RPD.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J2

Page 3: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 1. RPDs outside Acceptable Range

Primary sample Duplicate/

Triplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_SW143_171024 Duplicate Eurofins Perfluoro-n-octane sulfonic acid (PFOS) 67 N

Triplicate ALS Perfluoro-n-octane sulfonic acid (PFOS) 67 N

1302_SW112_171024 Duplicate Eurofins Perfluoro-n-octane sulfonic acid (PFOS) 40 N

1302_SW162_171025 Duplicate Eurofins Perfluoropentanoic acid (PFPA or PFPeA) 67 Y

Triplicate ALS Perfluoro-n-octane sulfonic acid (PFOS) 100 N

The RPD discrepancies observed in the October 2017 surface water sampling largely were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results. Generally, the majority of the discrepancies were between the primary and secondary laboratory, with the secondary laboratory showing no particular bias compared to the primary laboratory. Despite the discrepancies observed, the results from the October 2017 surface water sampling were generally considered acceptable and able to be relied on for the report.

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Not Applicable

Comments

Rinsate samples were not collected during this surface water sampling event as all samples were collected directly into the sampling bottle and disposable gloves used between each location. As a result of the methodology employed, there was considered to be a very low chance of cross contamination and no re-usable sampling equipment employed during the sampling.

Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J3

Page 4: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J4

Page 5: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.2. November 2017

1.2.1. QA/QC General

Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J5

Page 6: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.2.2. Field QA/QC

Type of QA/QC Samples Collected

Primary Samples 9

Days of sampling 7

Field Duplicates (at least 1 in 20 samples) 2 intra lab + 3 inter lab

Trip Blanks (at least 1 per sampling event) 1

Equipment Rinsate (at least

1/day/matrix/equipment)

7

Samples Analysed

Nine samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over two days of sampling. Two duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Three triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 2 and ESDAT export table following Section 1.5.

There were 56 duplicate pair analyses for PFAS compounds and 100% were reported within the acceptance target of less than 30 % RPD. There were 56 triplicate pair analyses for PFAS compounds and 96.4 % were reported within the acceptance target of less than 30 % RPD.

Table 2. RPDs outside Acceptable Range

Primary sample Duplicate/

Triplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_SW112_171116 Triplicate ALS Perfluoro-n-hexanoic acid (PFHxA) 67 Y

Perfluorobutane sulfonic acid (PFBS) 40 N

Perfluoro-n-octane sulfonic acid (PFOS) 59 Y

1302_SW175_171117 Triplicate ALS Perfluoro-n-octane sulfonic acid (PFOS) 44 Y

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J6

Page 7: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

The RPD discrepancies observed in the November 2017 surface water sampling partially were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results. Generally, the majority of the discrepancies were between the primary and secondary laboratory, with the secondary laboratory reporting higher concentrations of PFOS that the primary laboratory suggesting a marginal bias towards the secondary laboratory reporting the more conservative results. However, other PFAS compounds did not suggest such a bias was present. Despite the discrepancies observed, the results from the November 2017 surface water sampling were generally considered acceptable and able to be relied on for the report as the results for PFOS, PFOA and PFHxS were either all above or below the reporting limits, and any decisions on the potential risks from these compounds would not change regardless of the observed discrepancies.

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Seven rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Surface water sampling water was undertaken using a new HDPE bottle mounted within an aluminium pole. Other non-disposable equipment used included water quality meters.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, aluminium pole sampler, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sampling?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Only a single trip blank sample was collected and analysed during the November surface water sampling event. This complies with the overall trip-blank collection frequency in the approved SAQP of one trip blank per event.

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J7

Page 8: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J8

Page 9: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.3. December 2017

1.3.1. QA/QC General

Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J9

Page 10: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.3.2. Field QA/QC

Type of QA/QC Samples Collected

Primary Samples 30

Days of sampling 5

Field Duplicates (at least 1 in 20 samples) 3 intra lab + 3 inter lab

Trip Blanks (at least 1 per sampling event) 5

Equipment Rinsate (at least

1/day/matrix/equipment)

5

Samples Analysed

Thirty samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over two days of sampling. Three duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Three triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 3 and ESDAT export table following Section 1.5.

There were 84 duplicate pair analyses for PFAS compounds and 100% were reported within the acceptance target of less than 30 % RPD. There were 84 triplicate pair analyses for PFAS compounds and 95.2 % were reported within the acceptance target of less than 30 % RPD.

Table 3. RPDs outside Acceptable Range

Primary sample Duplicate/

Triplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_SW115_171205 Triplicate ALS Perfluoro pentanoic acid (PFPA or PFPeA) 50 N

Perfluoro-n-heptanoic acid (PFHpA) 40 N

Perfluoro-n-heptane sulfonic acid (PFHpS) 40 N

Perfluoro-n-pentane sulfonic acid (PFPeS) 43 Y

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J10

Page 11: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

The RPD discrepancies observed in the December 2017 surface water sampling largely were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results. Generally, the majority of the discrepancies were between the primary and secondary laboratory, with the secondary laboratory showing no particular bias compared to the primary laboratory. Despite the discrepancies observed, the results from the December 2017 surface water sampling were generally considered acceptable and able to be relied on for the report.

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Five rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Surface water sampling water was undertaken using a new HDPE bottle mounted within an aluminium pole. Other non-disposable equipment used included water quality meters.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, aluminium pole sampler, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J11

Page 12: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.4. Laboratory QA/QC (October to December 2017)

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

1.4.1. Laboratory Blanks.

All 366 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

1.4.2. Laboratory Duplicates

A total of 344 internal laboratory duplicates were analysed by Eurofins and all were within acceptable limits (<30% RPD).

1.4.3. Laboratory Control Samples

A total of 228 laboratory control sample analyses were performed by Eurofins and of these, 9 LCS was outside of the acceptable range (>50%). The compounds with LCS discrepancies were not a primary PFAS compounds of concern (PFOS, PFHxS and PFOA). However, these minor discrepancies were not considered to impact on the overall quality of the laboratory results.

1.4.4. Matrix Spikes

A total of 351 matrix spike analyses were performed by Eurofins and of these 25 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

1.4.5. Surrogate recoveries

The collated laboratory data for surrogate recoveries reported 71 surrogates (out of a total of 2,378 surrogate analyses undertaken) below the lower recovery limit of 20%. A total of 11 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 188%). These discrepancies were for a number of PFAS compounds but did not include the key PFAS compounds (PFOS, PFOA and PFHxS). Consequently, these discrepancies were not considered to impact on the overall outcome of the report.

A summary of the internal laboratory quality control results is provided in Table 4.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J12

Page 13: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 4: Summary of internal laboratory QC results

QC test Total Analyses Number outside of

Acceptable Criteria

% of analyses

acceptable

Method Blanks 366 0 100

Laboratory Duplicates 344 0 100

Laboratory Control Samples 228 9 96

Matrix Spikes 351 25 93

Surrogates 2,378 82 97

Totals 3,667 116 97

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 97%, which is above the 95% target and the data is therefore considered of an acceptable quality to use in the report.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.5. Summary of October to December 2017 Surface Water Data Quality Review

In general, the data quality of the October to December 2017 Surface water monitoring events was considered to be acceptable. Minor discrepancies in replicate results between the primary and secondary laboratory were observed, but no particular bias was noted. Other minor QC deficiencies (internal laboratory discrepancies) were also considered unlikely to impact on the outcome of the report.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J13

Page 14: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

October to December 2017 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 1 of 9

Lab Report Number 569831 569831 569831 EM1714785 569492 569492 569492 EM1714785 569492Field ID 1302_SW140_171025 1302_QC06SW_171025 RPD 1302_SW140_171025 1302_QC07SW_171025 RPD 1302_SW143_171024 1302_QC01SW_171024 RPD 1302_SW143_171024 1302_QC02SW_171024 RPD 1302_SW112_171024Sampled Date/Time 25/10/2017 25/10/2017 25/10/2017 25/10/2017 24/10/2017 24/10/2017 24/10/2017 24/10/2017 24/10/2017

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 0.03 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 0.01 <0.01 0 0.01 <0.01 0 0.02 0.01 67 0.02 <0.01 67 0.03 PFHxS + PFOS µg/L 0.01 0.01 <0.01 0 0.01 <0.01 0 0.02 0.01 67 0.02 <0.01 67 0.06 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) <0.1 <0.1 0 <0.1 <0.01 0 <0.1 <0.1 0 <0.1 <0.01 0 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab) <0.05 <0.05 0 <0.05 <0.01 0 <0.05 <0.05 0 <0.05 <0.01 0 0.06*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J14

Page 15: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

October to December 2017 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 2 of 9

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in

569492 569492 EM1714785 569492 569492 569492 EM1714785 575818 5758181302_QC03SW_171024 RPD 1302_SW112_171024 1302_QC04SW_171024 RPD 1302_SW162_171025 1302_QCSW8_171025 RPD 1302_SW162_171025 1302_QCSW9_171025 RPD 1302_SW113_171120 1302_QC4SW_171120 RPD

24/10/2017 24/10/2017 24/10/2017 25/10/2017 25/10/2017 25/10/2017 25/10/2017 20/11/2017 20/11/2017

<0.05 0 <0.05 <0.2 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0<0.01 0 <0.01 <0.05 0 <0.01 0.02 67 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.12 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.03 0 0.03 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 0.02 0.02 0

<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.02 40 0.03 <0.05 0 0.03 0.04 29 0.03 0.01 100 0.03 0.03 00.05 18 0.06 <0.05 18 0.03 0.04 29 0.03 0.01 100 0.05 0.05 0

<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0<0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0<0.1 0 <0.1 <0.05 0 <0.1 <0.1 0 <0.1 0.01 0 <0.1 <0.1 00.05 18 0.06 <0.05 18 <0.05 0.06 18 <0.05 0.01 0 0.05 0.05 0

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J15

Page 16: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

October to December 2017 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 3 of 9

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in

575818 575818 575818 EB1725803 575818 EB1725803 575818 EB1725803 5761461302_SW143_171117 1302_QC5SW_171117 RPD 1302_SW112_171116 1302_QC2SW_171116 RPD 1302_SW175_171117 1302_QC3SW_171117 RPD 1302_SW142_171121 1302_QC6SW_171121 RPD 1302_SW170_171204

17/11/2017 17/11/2017 16/11/2017 16/11/2017 17/11/2017 17/11/2017 21/11/2017 21/11/2017 4/12/2017

<0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.1 0 <0.05 <0.1 0 <0.050.02 0.02 0 0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.010.01 0.01 0 0.03 0.06 67 <0.01 <0.02 0 <0.01 <0.02 0 <0.01

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 0.01 0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01<0.01 <0.01 0 0.03 <0.02 40 <0.01 <0.02 0 <0.01 <0.02 0 <0.010.02 0.02 0 0.22 0.27 20 0.06 0.06 0 <0.01 <0.02 0 0.02

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.010.02 0.02 0 0.18 0.33 59 0.07 0.11 44 <0.01 <0.01 0 0.160.04 0.04 0 0.4 0.6 40 0.13 0.17 27 <0.01 <0.01 0 0.18

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.01 <0.01 0 0.03 0.03 0 <0.01 <0.02 0 <0.01 <0.02 0 <0.01<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.02 0 <0.05 <0.02 0 <0.05<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.02 0 <0.05 <0.02 0 <0.05<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.02 0 <0.05 <0.02 0 <0.05<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01 <0.05 0 <0.01<0.1 <0.1 0 0.51 0.7 31 0.13 0.17 27 <0.1 <0.01 0 0.180.07 0.07 0 0.48 0.67 33 0.13 0.17 27 <0.05 <0.01 0 0.18

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J16

Page 17: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

October to December 2017 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 4 of 9

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in

576146 576146 EB1726099 576146 576146 576146 EB1726099 576509 576509 5765091302_QCSW02_171204 RPD 1302_SW170_171204 QCSW03_171204 RPD 1302_SW115_171205 1302_QCSW06_171205 RPD 1302_SW115_171205 QCSW07_171205 RPD 1302_SW152_171207 1302_QCSW12_171207 RPD 1302_SW152_171207

4/12/2017 4/12/2017 4/12/2017 5/12/2017 5/12/2017 5/12/2017 5/12/2017 7/12/2017 7/12/2017 7/12/2017

<0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05<0.01 0 <0.01 <0.02 0 0.05 0.06 18 0.05 0.03 50 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 0.21 0.21 0 0.21 0.27 25 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 0.03 0.03 0 0.03 0.02 40 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.01 0 0.06 0.07 15 0.06 0.06 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 0.1 0.11 10 0.1 0.1 0 <0.01 <0.01 0 <0.010.02 0 0.02 0.02 0 1.0 1.1 10 1.0 1.23 21 0.03 0.04 29 0.03

<0.01 0 <0.01 <0.02 0 0.06 0.06 0 0.06 0.04 40 <0.01 <0.01 0 <0.010.16 0 0.16 0.14 13 2.2 2.2 0 2.2 2.17 1 0.14 0.13 7 0.140.18 0 0.18 0.16 12 3.2 3.3 3 3.2 3.4 6 0.17 0.17 0 0.17

<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.02 0 0.11 0.11 0 0.11 0.17 43 <0.01 <0.01 0 <0.01<0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05<0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.010.18 0 0.18 0.16 12 3.82 3.95 3 3.82 4.09 7 0.17 0.17 0 0.170.18 0 0.18 0.16 12 3.65 3.78 3 3.65 3.88 6 0.17 0.17 0 0.17

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J17

Page 18: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

October to December 2017 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 5 of 9

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in

EB1726228 569831 569831 569831 EM1714785 569492 569492 569492 EM17147851302_QCSW13_171207 RPD 1302_SW140_171025 1302_QC06SW_171025 RPD 1302_SW140_171025 1302_QC07SW_171025 RPD 1302_SW143_171024 1302_QC01SW_171024 RPD 1302_SW143_171024 1302_QC02SW_171024 RPD

7/12/2017 25/10/2017 25/10/2017 25/10/2017 25/10/2017 24/10/2017 24/10/2017 24/10/2017 24/10/2017

<0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 00.04 29 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 00.17 19 0.01 <0.01 0 0.01 <0.01 0 0.02 0.01 67 0.02 <0.01 670.21 21 0.01 <0.01 0 0.01 <0.01 0 0.02 0.01 67 0.02 <0.01 67

<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0<0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 00.21 21 <0.1 <0.1 0 <0.1 <0.01 0 <0.1 <0.1 0 <0.1 <0.01 00.21 21 <0.05 <0.05 0 <0.05 <0.01 0 <0.05 <0.05 0 <0.05 <0.01 0

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J18

Page 19: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

October to December 2017 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 6 of 9

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in

569492 569492 569492 EM1714785 569492 569492 569492 EM17147851302_SW112_171024 1302_QC03SW_171024 RPD 1302_SW112_171024 1302_QC04SW_171024 RPD 1302_SW162_171025 1302_QCSW8_171025 RPD 1302_SW162_171025 1302_QCSW9_171025 RPD

24/10/2017 24/10/2017 24/10/2017 24/10/2017 25/10/2017 25/10/2017 25/10/2017 25/10/2017

<0.05 <0.05 0 <0.05 <0.2 0 <0.05 <0.05 0 <0.05 <0.1 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 0.02 67 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.12 0 <0.01 <0.01 0 <0.01 <0.05 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 00.03 0.03 0 0.03 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 00.03 0.02 40 0.03 <0.05 0 0.03 0.04 29 0.03 0.01 1000.06 0.05 18 0.06 <0.05 18 0.03 0.04 29 0.03 0.01 100

<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.02 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 <0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.12 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.1 <0.1 0 <0.1 <0.05 0 <0.1 <0.1 0 <0.1 0.01 00.06 0.05 18 0.06 <0.05 18 <0.05 0.06 18 <0.05 0.01 0

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J19

Page 20: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

OCtober to December 2017 Surface Water Monitoring EventField Blank Summary Table

Department of Defence

754-MELEN199421 Page 7 of 9

Lab Report Number 569492 569492 575818 575818 575818 575818 575818 575818 575818 575818Field ID 1302_QC5W_171024 1302_QCSW11_171025 1302_QC1FH_171117 1302_QC2FH_171122 1302_QC3FH_171122 1302_QC4FH_171122 1302_QC5FH_171122 1302_QC6FH_171122 1302_QC7FH_171123 1302_QC7SW_171121Sampled_Date/Time 24/10/2017 25/10/2017 17/11/2017 22/11/2017 22/11/2017 22/11/2017 22/11/2017 22/11/2017 23/11/2017 21/11/2017Sample Type Trip_B Trip_B Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Trip_B

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J20

Page 21: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

OCtober to December 2017 Surface Water Monitoring EventField Blank Summary Table

Department of Defence

754-MELEN199421 Page 8 of 9

Lab Report Number 576146 576146 576509 577342 577342 576146 576146 576509 576509 577342 576183Field ID 1302_QCSW04_171204 1302_QCSW08_171205 1302_QCSW10_171206 1302_QCSW14_171207 1302_QCSW16_171208 1302_QCSW01_171204 1302_QCSW05_171205 1302_QCSW09_171206 1302_QCSW11_171207 1302_QCSW15_171208 1302_QCSW01_171204Sampled_Date/Time 4/12/2017 5/12/2017 6/12/2017 7/12/2017 8/12/2017 4/12/2017 5/12/2017 6/12/2017 7/12/2017 8/12/2017 4/12/2017Sample Type Rinsate Rinsate Rinsate Rinsate Rinsate Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B

ChemName Units EQLPerfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.052-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.052-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.051H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.011H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.051H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.011H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J21

Page 22: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

2. SURFACE WATER (January to February 2018)

Surface water sampling was undertaken in January and February 2018 from various surface water bodies within the investigation area, including weekly sampling from some points. A review of the field quality assurance and quality control results has been prepared for each month (January and February), and a collated review of internal laboratory quality assurance/quality control has been undertaken combining sampling undertaken across both months.

2.1. January 2018

2.1.1. QA/QC General

Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was: Satisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J22

Page 23: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Partially Satisfactory

Unsatisfactory

2.1.2. Field QA/QC

Type of QA/QC Samples Collected

Primary Samples 75

Days of sampling 7

Field Duplicates (at least 1 in 20 samples) 8 intra lab + 7 inter lab

Trip Blanks (at least 1 per sampling event) 8

Equipment Rinsate (at least

1/day/matrix/equipment)

8

Samples Analysed

Seventy five samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over seven days of sampling. 8 duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Seven triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 5 and ESDAT export table following Section 2.4.

There were 224 duplicate pair analyses for PFAS compounds and 98.7% were reported within the acceptance target of less than 30 % RPD. There were 196 triplicate pair analyses for PFAS compounds and 99 % were reported within the acceptance target of less than 30 % RPD.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J23

Page 24: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 5. RPDs outside Acceptable Range

Primary sample Duplicate/

Triplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_SW174_180130 Triplicate ALS Perfluoro-n-octane sulfonic acid (PFOS) 67 N

1302_SW114_180109 Duplicate Eurofins Perfluoro-n-heptane sulfonic acid (PFHpS) 67 N

1302_SW149_180129 Duplicate Eurofins Perfluoro-n-hexane sulfonic acid (PFHxS) 50 Y

Triplicate ALS Perfluoro-n-hexane sulfonic acid (PFHxS) 40 N

Perfluoro-n-octane sulfonic acid (PFOS) 100 N

1302_SW180_180130 Triplicate ALS Perfluoro pentanoic acid (PFPA or PFPeA) 86 N

Perfluoro-n-octane sulfonic acid (PFOS) 45 Y

The RPD discrepancies observed in the January 2018 surface water sampling largely were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results. Generally, the majority of the discrepancies were between the primary and secondary laboratory, with the secondary laboratory showing no particular bias compared to the primary laboratory. Despite the discrepancies observed, the results from the January 2018 surface water sampling were generally considered acceptable and able to be relied on for the report.

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

N

Comments

Eight rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Surface water sampling water was undertaken using a new HDPE bottle mounted within an aluminium pole. Other non-disposable equipment used included water quality meters.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, aluminium pole sampler, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J24

Page 25: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J25

Page 26: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

2.2. February 2018

2.2.1. QA/QC General

Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J26

Page 27: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

2.2.2. Field QA/QC

Type of QA/QC Samples Collected

Primary Samples 22

Days of sampling 3

Field Duplicates (at least 1 in 20 samples) 3 intra lab + 3 inter lab

Trip Blanks (at least 1 per sampling event) 3

Equipment Rinsate (at least

1/day/matrix/equipment)

3

Samples Analysed

Twenty Two samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over three days of sampling. Three duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Three triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 6 and ESDAT export table following Section 2.4.

There were 56 duplicate pair analyses for PFAS compounds and 97.6% were reported within the acceptance target of less than 30 % RPD. There were 56 triplicate pair analyses for PFAS compounds and 78.5 % were reported within the acceptance target of less than 30 % RPD.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J27

Page 28: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 6. RPDs outside Acceptable Range

Primary

sample

Duplicate/

Triplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_SW170_

180222

Duplicate Eurofins Perfluoro-n-heptane sulfonic acid (PFHpS) 67 Y

Triplicate ALS Perfluoro pentanoic acid (PFPA or PFPeA) 120 Y

Perfluoro-n-hexanoic acid (PFHxA) 120 Y

Perfluoro-n-heptanoic acid (PFHpA) 67 Y

Perfluoro-n-octanoate acid (PFOA) 133 Y

Perfluorobutane sulfonic acid (PFBS) 133 Y

Perfluoro-n-hexane sulfonic acid (PFHxS) 128 Y

Perfluoro-n-heptane sulfonic acid (PFHpS) 143 Y

Perfluoro-n-octane sulfonic acid (PFOS) 88 Y

Perfluoro-n-decane sulfonic acid (PFDS) 138 Y

1302_SW168_

180222

Duplicate Eurofins Perfluorobutane sulfonic acid (PFBS) 67 Y

Triplicate ALS Perfluoro pentanoic acid (PFPA or PFPeA) 120 Y

Perfluoro-n-hexanoic acid (PFHxA) 124 Y

Perfluoro-n-heptanoic acid (PFHpA) 67 Y

Perfluoro-n-octanoate acid (PFOA) 133 Y

Perfluorobutane sulfonic acid (PFBS) 150 Y

Perfluoro-n-hexane sulfonic acid (PFHxS) 119 Y

Perfluoro-n-heptane sulfonic acid (PFHpS) 120 Y

Perfluoro-n-octane sulfonic acid (PFOS) 64 Y

Perfluoro-n-decane sulfonic acid (PFDS) 127 Y

The RPD discrepancies observed in the February 2018 surface water sampling partially were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below in the primary laboratory samples – which magnifies the relative difference between the results. However, the RPDs for the secondary laboratory were a result of significantly higher concentrations of PFAS across the board. These results suggest that the PFAS results for the samples collected on the 22 February 2018 may be under-reported by approximately 50-100%. Consequently, the results collected on this day cannot be relied on quantitatively, but only qualitatively. Generally, the results collected on this day are all above the adopted screening levels (with the exception of two samples reporting concentrations below the laboratory reporting limits) and this significant discrepancy would not change the outcome of the assessment – particularly for concentrations of PFOS, PFHxS and PFOA.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J28

Page 29: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Three rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Surface water sampling water was undertaken using a new HDPE bottle mounted within an aluminium pole. Other non-disposable equipment used included water quality meters.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, aluminium pole sampler, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sampling?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J29

Page 30: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

2.3. Laboratory QA/QC (January to February 2018)

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

2.3.1. Laboratory Blanks.

All 412 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

2.3.2. Laboratory Duplicates

A total of 583 internal laboratory duplicates were analysed by Eurofins and two were outside of the acceptable limits (<30% RPD) for Perfluorohexanoic acid (PFHxA) (67%) and Perfluorooctanesulfonic acid (PFOS) (67%).

2.3.3. Laboratory Control Samples

A total of 273 laboratory control sample analyses were performed by Eurofins and of these, 17 LCS was outside of the acceptable range (>50%). The compounds with LCS discrepancies were not a primary PFAS compounds of concern (PFOS, PFHxS and PFOA) and these minor discrepancies were not considered to impact on the overall quality of the laboratory results.

2.3.4. Matrix Spikes

A total of 455 matrix spike analyses were performed by Eurofins and of these 31 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, none were for the primary PFAS compounds of concern (PFOS, PFHxS and PFOA) and all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

2.3.5. Surrogate recoveries

The collated laboratory data for surrogate recoveries reported 58 surrogates (out of a total of 2,378 surrogate analyses undertaken) below the lower recovery limit of 20%. A total of 20 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 179%). These discrepancies were for a number of PFAS compounds but did not include the key PFAS compounds (PFOS, PFOA and PFHxS). Consequently, these discrepancies were not considered to impact on the overall outcome of the report.

A summary of the internal laboratory quality control results is provided in Table 7.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J30

Page 31: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 7: Summary of internal laboratory QC results

QC test Total Analyses Number outside of

Acceptable Criteria

% of analyses

acceptable

Method Blanks 412 0 100

Laboratory Duplicates 583 2 99.7

Laboratory Control Samples 273 17 93.8

Matrix Spikes 455 31 93.2

Surrogates 3018 78 97.4

Totals 4741 128 97.3

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 97.3%, which is above the 95% target and the data is therefore considered of an acceptable quality to use in the report.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

2.4. Summary of January to February 2018 Surface Water Data Quality Review

In general, the data quality of the January to February 2018 Surface water monitoring events was considered to be acceptable. Minor discrepancies in replicate results between the primary and secondary laboratory were observed and samples collected on 22 February 2018 were not considered to be reliable and likely under-reported the concentrations of PFAS within surface water. However, the majority of results from this day were already above the adopted screening criteria (or below the laboratory reporting limits) and any under-reporting is unlikely to affect the qualitative outcome of the results. Direct comparison of results (such as for trend analysis) on this day should be undertaken with caution as the reported results at the primary laboratory may be 50 to 100% under-reported. Other minor QC deficiencies (internal laboratory discrepancies) were also considered unlikely to impact on the outcome of the report.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J31

Page 32: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

January 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Lab Report Number 582713 582713 582713 EB1803356 579571 579571 579571 EB1801416 579571 579571

Field ID

1302_SW174_180130

1302_QCSW30_180130 RPD

1302_SW174_180130

1302_QCSW31_180130 RPD

1302_SW103_180108

1302_QCSW03_180108 RPD

1302_SW103_180108

QCSW04_180108 RPD

1302_SW162_180108

1302_QCSW05_180108 RPD

Sample Date 30/01/2018 30/01/2018 30/01/2018 30/01/2018 8/01/2018 8/01/2018 8/01/2018 8/01/2018 8/01/2018 8/01/2018

Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab Primary Intra-lab

Chem_GroupChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.02 0.02 0 0.02 0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 0.02 0.02 0 0.02 <0.01 67 <0.01 <0.01 0 <0.01 <0.01 0 0.05 0.05 0PFHxS + PFOS µg/L 0.01 0.04 0.04 0 0.04 0.02 67 <0.01 <0.01 0 <0.01 <0.01 0 0.05 0.05 0Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 02-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 02-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 01H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 01H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 01H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 01H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) <0.1 <0.1 0 <0.1 0.02 0 <0.1 <0.1 0 <0.1 <0.01 0 <0.1 <0.1 0Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab) <0.05 <0.05 0 <0.05 0.02 0 <0.05 <0.05 0 <0.05 <0.01 0 0.05 0.05 0

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J32

Page 33: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

January 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Lab Report Number

Field IDSample Date

Chem_GroupChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab)Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab)Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab)N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab)Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

579890 579890 579890 EB1801723 579890 579890 579890 EB1801723 580118 580118

1302_SW114_180109

1302_QCSW08_180109 RPD

1302_SW114_180109

1302_QCSW09_180109 RPD

1302_SW113_180109

1302_QCSW11_180109 RPD

1302_SW113_180109

1302_QCSW12_180109 RPD

1302_SW177_180110

1302_QCSW14_180110 RPD

9/01/2018 9/01/2018 9/01/2018 9/01/2018 9/01/2018 9/01/2018 9/01/2018 9/01/2018 10/01/2018 10/01/2018

Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab Primary Intra-lab

<0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.05 0.05 0 0.05 0.06 18 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.01 0.01 0 0.01 0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 00.04 0.04 0 0.04 0.04 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.36 0.34 6 0.36 0.4 11 0.04 0.04 0 0.04 0.04 0 0.03 0.03 00.02 0.01 67 0.02 0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.77 0.77 0 0.77 0.65 17 0.08 0.08 0 0.08 0.06 29 0.09 0.1 111.13 1.11 2 1.13 1.05 7 0.12 0.12 0 0.12 0.1 18 0.12 0.13 8

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 00.04 0.04 0 0.04 0.04 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0

<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 01.29 1.26 2 1.29 1.22 6 0.12 0.12 0 0.12 0.1 18 0.12 0.13 81.23 1.21 2 1.23 1.16 6 0.12 0.12 0 0.12 0.1 18 0.12 0.13 8

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J33

Page 34: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

January 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Lab Report Number

Field IDSample Date

Chem_GroupChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab)Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab)Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab)Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab)N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab)Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

580118 EB1801740 582498 582498 582498 EB1803090 582498 582498 582498 EB1803090

1302_SW177_180110

1302_QCSW15_180110 RPD

1302_SW149_180129

1302_QCSW22_180129 RPD

1302_SW149_180129

1302_QCSW23_180129 RPD

1302_SW180_180130

1302_QCSW26_180130 RPD

1302_SW180_180130

1302_QCSW27_180130 RPD

10/01/2018 10/01/2018 29/01/2018 29/01/2018 29/01/2018 29/01/2018 30/01/2018 30/01/2018 30/01/2018 30/01/2018

Primary Inter-lab Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab

<0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 0.05 0.04 22 0.05 <0.02 86<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 0.04 0.04 0 0.04 0.05 22<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 0.04 0.04 0 0.04 0.04 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 0.02 0.02 0 0.02 0.02 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 00.03 0.03 0 0.03 0.05 50 0.03 <0.02 40 0.1 0.09 11 0.1 0.12 18

<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 00.09 0.07 25 0.06 0.08 29 0.06 0.02 100 0.17 0.13 27 0.17 0.27 450.12 0.1 18 0.09 0.13 36 0.09 0.02 127 0.27 0.22 20 0.27 0.39 36

<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0<0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0<0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0<0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 00.12 0.1 18 <0.1 0.13 26 <0.1 0.02 0 0.42 0.36 15 0.42 0.5 170.12 0.1 18 0.09 0.13 36 0.09 0.02 127 0.42 0.36 15 0.42 0.5 17

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J34

Page 35: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Surface Water Monitoring Event

Field Blanks Summary Table

Department of Defence

Lab Report Number 582713 582713 579571 579890 580118 580281 582498 582498

Field ID 1302_QCSW29_180130 1302_QCSW33_180131 1302_QCSW07_180108 1302_QCSW13_180109 1302_QCSW17_180110 1302_QCSW17_180111 1302_QCSW21_180129 1302_QCSW25_180130

Sampled_Date/Time 30/01/2018 31/01/2018 8/01/2018 9/01/2018 10/01/2018 11/01/2018 29/01/2018 30/01/2018Sample Type Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate

Chem_Group ChemName Units EQL

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 0.01 <0.01 <0.01 <0.01 <0.01 <0.01

PFHxS + PFOS µg/L 0.01 <0.01 <0.01 0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1

Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

754-MELEN199421 Page 1 of 2

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J35

Page 36: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Surface Water Monitoring Event

Field Blanks Summary Table

Department of Defence

Lab Report Number

Field ID

Sampled_Date/TimeSample Type

Chem_Group ChemName Units EQL

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01

PFHxS + PFOS µg/L 0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01

Sum of PFASs (n=28) µg/L 0.1

Sum of WA DER PFAS (n=10) µg/L 0.05

582713 582713 579571 579890 580118 580281 582498 582498

1302_QCSW28_180130 1302_QCSW32_180131 1302_QCSW01_180108 1302_QCSW10_180109 1302_QCSW16_180110 1302_QCSW18_180111 1302_QCSW20_180129 1302_QCSW24_180130

30/01/2018 31/01/2018 8/01/2018 9/01/2018 10/01/2018 11/01/2018 29/01/2018 30/01/2018Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

<0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

754-MELEN199421 Page 2 of 2

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J36

Page 37: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

3. GROUNDWATER (November 2017)

3.1. QA/QC General

3.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

3.1.2. Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J37

Page 38: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

3.2. Field QA/QC

3.2.1. Type of QA/QC Samples Collected

Primary Samples 81

Days of sampling 5

Field Duplicates (at least 1 in 20 samples) 7 intra lab + 7 inter lab

Trip Blanks (at least 1 per sampling event) 5

Equipment Rinsate (at least

1/day/matrix/equipment)

5

3.2.2. Samples Analysed

Eighty one samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over five days of sampling. Seven duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Seven triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

3.2.3. Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 8 and ESDAT export table following Section 3.4.

There were 189 duplicate pair analyses for PFAS compounds and 98 % were reported within the acceptance target of less than 30 % RPD. There were 162 triplicate pair analyses for PFAS compounds and 90 % were reported within the acceptance target of less than 30 % RPD.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J38

Page 39: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 8. RPDs outside Acceptable Range

Primary sample Duplicate/

Triplicate

sample

Laboratory Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_MW130_17

1114

Triplicate ALS Perfluorobutane sulfonic acid (PFBS) 31 Y

1302_MW151_17

1114

Duplicate Eurofins Perfluoro pentanoic acid (PFPA or PFPeA) 67 N

Perfluoro-n-hexane sulfonic acid (PFHxS) 32 N

Perfluoro-n-octane sulfonic acid (PFOS) 34 N

Triplicate ALS Perfluoro-n-hexanoic acid (PFHxA) 40 Y

Perfluoro-n-octane sulfonic acid (PFOS) 34 N

Perfluoro-n-pentane sulfonic acid (PFPeS) 67 Y

1302_230_MW01

_171115

Triplicate ALS Perfluoro-n-hexanoic acid (PFHxA) 43 Y

1302_206_MW06

_171115

Triplicate ALS Perfluoro-n-octane sulfonic acid (PFOS) 49 N

1302_BLD33-

NRTH_171113

Triplicate ALS Perfluoro pentanoic acid (PFPA or PFPeA) 40 N

Perfluoro-n-octanoate acid (PFOA) 67 N

The RPD discrepancies observed in the November 2017 groundwater sampling largely were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results. Generally, the majority of the discrepancies were between the primary and secondary laboratory, with the secondary laboratory showing no particular bias compared to the primary laboratory. Despite the discrepancies observed, the results from the November 2017 groundwater sampling were generally considered acceptable and able to be relied on for the report.

3.2.4. Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Five rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Groundwater sampling was undertaken using hydrasleeve sampling and the only non-disposable equipment used included interface probes and water quality meters.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J39

Page 40: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Rinsate samples were collected from the field equipment (e.g. sampling gloves, water quality meter, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

3.2.5. Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

3.3. Laboratory QA/QC

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

3.3.1. Laboratory Blanks.

All 140 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

3.3.2. Laboratory Duplicates

A total of 336 internal laboratory duplicates were analysed by Eurofins and all but one (Perfluoropentanoic acid PFPeA – 67%) were within acceptable limits (<30% RPD).

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J40

Page 41: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

3.3.3. Laboratory Control Samples

A total of 140 laboratory control sample analyses were performed by Eurofins and of these, 4 LCS was outside of the acceptable range (>50%). The compounds with LCS discrepancies were not a primary PFAS compounds of concern (PFOS, PFHxS and PFOA). However, this minor discrepancies were not considered to impact on the overall quality of the laboratory results.

3.3.4. Matrix Spikes

A total of 308 matrix spike analyses were performed by Eurofins and of these 6 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

3.3.5. Surrogate recoveries

The collated laboratory data for surrogate recoveries reported 13 surrogates (out of a total of 1,863 surrogate analyses undertaken) below the lower recovery limit of 20%. A total of 54 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 199%). These discrepancies were for a number of PFAS compounds. However, over-reporting of PFAS compounds is considered to add a level of conservatism to the overall results of the assessment, and not considered to impact on the overall outcome of the DSI report.

A summary of the internal laboratory quality control results is provided in Table 9

Table 9: Summary of internal laboratory QC results

QC test Total Analyses Number outside of

Acceptable Criteria

% of analyses

acceptable

Method Blanks 140 0 100

Laboratory Duplicates 336 1 99.7

Laboratory Control Samples 140 4 97.1

Matrix Spikes 308 6 98.1

Surrogates 2,254 67 97

Totals 3,178 165 97.5

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 97.5%, which is above the 95% target. However, the majority of the surrogate recoveries analysed were within the acceptable dynamic recovery limits, and the data is therefore considered of an acceptable quality to use in the report.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J41

Page 42: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

3.4. Summary of November 2017 GME Data Quality Review

In general, the data quality of the November 2017 groundwater monitoring event was considered to be acceptable. Minor discrepancies in replicate results between the primary and secondary laboratory were observed, but no particular bias was noted. Other minor QC deficiencies (internal laboratory discrepancies) were also considered unlikely to impact on the outcome of the report.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J42

Page 43: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

November 2017 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 1 of 4

Lab Report Number 572746 572746 572746 EM1715729 572746 572746 572746 EM1715729 572745 572745Field ID 1302_MW130_171114 1302_QC9MW_171114 RPD 1302_MW130_171114 QC10MW_171114 RPD 1302_MW151_171114 1302_QC11MW_171114 RPD 1302_MW151_171114 QC12MW_171114 RPD 1302_MW207_171113 1302_QC2MW_171113Sampled Date 14/11/2017 14/11/2017 14/11/2017 14/11/2017 14/11/2017 14/11/2017 14/11/2017 14/11/2017 13/11/2017 13/11/2017

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) 0.12 0.12 0 0.12 <0.1 18 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) 0.19 0.21 10 0.19 0.2 5 0.02 0.01 67 0.02 <0.02 0 <0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) 0.77 0.77 0 0.77 1.03 29 0.04 0.03 29 0.04 0.06 40 <0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) 0.13 0.13 0 0.13 0.15 14 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 0.33 0.34 3 0.33 0.29 13 0.01 <0.01 0 0.01 <0.01 0 <0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.35 0.34 3 0.35 0.48 31 0.01 <0.01 0 0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) 4.9 5.2 6 4.9 4.58 7 0.22 0.16 32 0.22 0.22 0 0.08 0.08 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.35 0.35 0 0.35 0.26 30 0.01 <0.01 0 0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 12.0 14.0 15 12.0 10.6 12 0.75 0.53 34 0.75 0.53 34 0.04 0.03 PFHxS + PFOS µg/L 0.01 16.9 19.2 13 16.9 15.2 11 0.97 0.69 34 0.97 0.75 26 0.12 0.11 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.47 0.47 0 0.47 0.47 0 0.01 0.01 0 0.01 0.02 67 <0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 0.06 0.06 0 0.06 <0.05 18 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) 19.67 22.0 11 19.67 18.1 8 1.07 0.74 36 1.07 0.83 25 0.12 0.11 Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab) 18.85 21.18 12 18.85 17.3 9 1.05 0.73 36 1.05 0.81 26 0.12 0.11*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J43

Page 44: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

November 2017 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 2 of 4

Lab Report NumberField IDSampled Date

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in th

572745 EM1715730 572745 572745 573039 573039 573039 EM1715783 573035RPD 1302_MW207_171113 QC3MW_171113 RPD 1302_BLD33-EAST_171113 1302_QC4MW_171113 RPD 1302_MW192_171116 1302_QC20MW_171116 RPD 1302_MW192_171116 QC21MW_171116 RPD 1302_230_MW01_171115

13/11/2017 13/11/2017 13/11/2017 13/11/2017 16/11/2017 16/11/2017 16/11/2017 16/11/2017 15/11/2017

0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.050 <0.01 <0.02 0 0.08 0.07 13 <0.01 <0.01 0 <0.01 <0.02 0 0.020 <0.01 <0.02 0 0.25 0.25 0 <0.01 <0.01 0 <0.01 <0.02 0 0.110 <0.01 <0.02 0 0.05 0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 0.010 <0.01 <0.01 0 0.1 0.09 11 <0.01 <0.01 0 <0.01 <0.01 0 0.030 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.010 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.010 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.010 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.010 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.010 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.010 <0.01 <0.02 0 0.09 0.09 0 <0.01 <0.01 0 <0.01 <0.02 0 0.070 0.08 0.1 22 2.1 2.1 0 0.01 <0.01 0 0.01 <0.02 0 0.820 <0.01 <0.02 0 0.1 0.1 0 <0.01 <0.01 0 <0.01 <0.02 0 0.03

29 0.04 0.04 0 5.2 5.1 2 0.03 0.03 0 0.03 0.04 29 2.19 0.12 0.14 15 7.3 7.2 1 0.04 0.03 29 0.04 0.04 0 2.920 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.010 <0.01 <0.02 0 0.16 0.16 0 <0.01 <0.01 0 <0.01 <0.02 0 0.090 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.050 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.050 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.050 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.050 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.050 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.050 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.050 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.010 <0.05 <0.05 0 <0.05 0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.050 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.010 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.019 0.12 0.14 15 8.13 8.06 1 <0.1 <0.1 0 <0.1 0.04 0 3.289 0.12 0.14 15 7.87 7.8 1 <0.05 <0.05 0 <0.05 0.04 0 3.16

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J44

Page 45: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

November 2017 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 3 of 4

Lab Report NumberField IDSampled Date

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in th

573035 573035 EM1715789 573035 573035 573035 EM1715789 572745 EM17157301302_QC13MW_171115 RPD 1302_230_MW01_171115 QC14MW_171115 RPD 1302_206_MW06_171115 1302_QC17MW_171115 RPD 1302_206_MW06_171115 QC18MW_171115 RPD 1302_BLD33-NRTH_171113 QC5MW_171113 RPD

15/11/2017 15/11/2017 15/11/2017 15/11/2017 15/11/2017 15/11/2017 15/11/2017 13/11/2017 13/11/2017

<0.05 0 <0.05 <0.1 0 0.06 0.06 0 0.06 <0.1 0 <0.05 <0.1 00.02 0 0.02 0.02 0 0.1 0.1 0 0.1 0.1 0 0.03 0.02 400.11 0 0.11 0.17 43 0.49 0.49 0 0.49 0.55 12 0.05 0.05 00.01 0 0.01 <0.02 0 0.09 0.09 0 0.09 0.11 20 0.02 <0.02 00.03 0 0.03 0.04 29 0.2 0.19 5 0.2 0.17 16 0.02 0.01 67

<0.01 0 <0.01 <0.02 0 0.01 0.01 0 0.01 <0.02 0 <0.01 <0.02 0<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 00.06 15 0.07 0.08 13 0.17 0.19 11 0.17 0.19 11 0.01 <0.02 00.78 5 0.82 1.06 26 2.2 2.2 0 2.2 2.02 9 0.18 0.15 180.03 0 0.03 0.03 0 0.15 0.17 13 0.15 0.15 0 <0.01 <0.02 01.9 10 2.1 1.93 8 12.0 11.0 9 12.0 7.26 49 0.34 0.32 6

2.68 9 2.92 2.99 2 14.2 13.2 7 14.2 9.28 42 0.52 0.47 10<0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.02 00.08 12 0.09 0.09 0 0.21 0.22 5 0.21 0.19 10 0.02 <0.02 0

<0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.02 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.02 0<0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.02 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 0 <0.01 <0.05 0 0.08 0.09 12 0.08 0.09 12 0.04 <0.05 0<0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.05 03.02 8 3.28 3.42 4 15.76 14.81 6 15.76 10.8 37 0.71 0.55 252.91 8 3.16 3.3 4 15.39 14.41 7 15.39 10.5 38 0.69 0.55 23

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J45

Page 46: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

November 2017 Groundwater Monitoring EventField Blank Summary Table

Department of Defence

754-MELEN199421 Page 4 of 4

Lab Report Number 572746 572745 573039 573035 573308 572746 572745 573039 573035 573308Field ID 1302_QC7MW_171114 1302_QC6MW_171113 1302_QC22MW_171116 1302_QC15MW_171115 1302_QC25MW_171117 1302_QC8MW_171114 1302_QC1MW_171113 1302_QC19MW_171116 1302_QC16MW_171115 1302_QC23MW_171117Sample Date 14/11/2017 13/11/2017 16/11/2017 15/11/2017 17/11/2017 14/11/2017 13/11/2017 16/11/2017 15/11/2017 17/11/2017Sample Type Rinsate Rinsate Rinsate Rinsate Rinsate Trip_B Trip_B Trip_B Trip_B Trip_B

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J46

Page 47: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

4. GROUNDWATER (January 2018)

4.1. QA/QC General

4.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

4.1.2. Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J47

Page 48: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

4.2. Field QA/QC

4.2.1. Type of QA/QC Samples Collected

Primary Samples 87

Days of sampling 3

Field Duplicates (at least 1 in 20 samples) 9 intra lab + 9 inter lab

Trip Blanks (at least 1 per sampling event) 3

Equipment Rinsate (at least

1/day/matrix/equipment)

3

4.2.2. Samples Analysed

Eighty seven samples were collected and sent to the primary laboratory Eurofins Environmental Consulting over three days of sampling. Nine duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting. Nine triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

4.2.3. Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in the ESDAT export table following Section 4.4.

There were 252 duplicate pair analyses for PFAS compounds and 96.1 % were reported within the acceptance target of less than 30 % RPD. There were 252 triplicate pair analyses for PFAS compounds and 94.8% were reported within the acceptance target of less than 30 % RPD.

The RPD discrepancies observed in the January 2018 groundwater sampling event largely were attributed to analytical results from two sample pairs. MW116 and its intra-lab and inter-lab duplicates and MW125 and its intra-lab and inter-lab duplicates did not report good repeatability, although the duplicates were quite similar to each other in both cases. Concentrations in MW116 have varied significantly between events through the year and may indicate heterogeneous distribution of contamination in the area. The January 2018 primary result for MW125, was considerably higher than the result from previous rounds, and the duplicate samples are more consistent with other events.

Generally, the majority of the discrepancies were between the primary and secondary laboratory indicated that the secondary laboratory was reporting lower concentrations of PFAS compounds than the primary laboratory, suggesting a slight bias. This bias adds a level of conservatism to the results and despite the discrepancies observed, the RPD results from the January 2018 groundwater sampling were generally considered acceptable and able to be relied on for the report.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J48

Page 49: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

4.2.4. Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Three rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Groundwater sampling was undertaken using hydrasleeve sampling and the only non-disposable equipment used included interface probes and water quality meters, which did not come into contact with groundwater samples.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, water quality meter, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

4.2.5. Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J49

Page 50: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

4.3. Laboratory QA/QC

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

4.3.1. Laboratory Blanks.

All 84 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

4.3.2. Laboratory Duplicates

A total of 308 internal laboratory duplicates were analysed by Eurofins and all but one (Perfluoropentanoic acid PFPeA – 67%) were within acceptable limits (<30% RPD).

4.3.3. Laboratory Control Samples

A total of 84 laboratory control sample analyses were performed by Eurofins and of these, 2 LCS was outside of the acceptable range (>50%). The compounds with LCS discrepancies were not a primary PFAS compounds of concern (PFOS, PFHxS and PFOA). However, this minor discrepancies were not considered to impact on the overall quality of the laboratory results.

4.3.4. Matrix Spikes

A total of 279 matrix spike analyses were performed by Eurofins and of these 10 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

4.3.5. Surrogate recoveries

The collated laboratory data for surrogate recoveries reported 27 surrogates (out of a total of 2,346 surrogate analyses undertaken) below the lower recovery limit of 20%. A total of 16 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 197%). These discrepancies were for a number of PFAS compounds, but none were for the key PFAS compounds (PFOS, PFOA & PFHxS) indicating that the data set was acceptable for the purposes of supporting the outcomes of the report.

A summary of the internal laboratory quality control results is provided in Table 10.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J50

Page 51: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 10: Summary of internal laboratory QC results

QC test Total Analyses Number outside of

Acceptable

Criteria

% of analyses

acceptable

Method Blanks 84 0 100

Laboratory Duplicates 308 1 99.7%

Laboratory Control Samples 84 2 97.6%

Matrix Spikes 279 10 96.4%

Surrogates 2,346 43 98.2%

Totals 3,101 56 98.2%

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 98.2%, which is above the 95% target. Consequently, the data is therefore considered of an acceptable quality to use in the report.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

4.4. Summary of January 2018 GME Data Quality Review

In general, the data quality of the January 2018 groundwater monitoring event was considered to be acceptable. Minor discrepancies in replicate results between the primary and secondary laboratory were observed, with the primary laboratory generally reporting higher concentrations of PFAS than the secondary laboratory, which adds a level of conservatism to the results. Other minor QC deficiencies (internal laboratory discrepancies) were also considered unlikely to impact on the outcome of the report.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J51

Page 52: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Groundwater Monitoring Event

Field Replicate RPD Summary Table

Department of Defence

Field Duplicates (WATER) Lab Report Number 580283 580283 580283 EB1801820 580283 580283 580283 EB1801820

Field ID 1302_MW198_180111 1302_QCMW02_180111 RPD 1302_MW198_180111 1302_QCMW03_180111 RPD 1302_MW162_180111 1302_QCMW04_180111 RPD 1302_MW162_180111 1302_QCMW06_180111 RPDSample Date 11/01/2018 11/01/2018 11/01/2018 11/01/2018 11/01/2018 11/01/2018 11/01/2018 11/01/2018

Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab

Chem_Group ChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.05 <0.1 0 0.12 0.13 8 0.12 0.1 18

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) 0.01 0.01 0 0.01 <0.02 0 0.32 0.38 17 0.32 0.29 10

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) 0.05 0.05 0 0.05 0.04 22 1.2 1.4 15 1.2 1.08 11

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 0.13 0.15 14 0.13 0.13 0

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 0.01 0.01 0 0.01 <0.01 0 0.28 0.25 11 0.28 0.27 4

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 0.01 0.01 0 0.01 <0.02 0

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.03 0.03 0 0.03 0.04 29 0.24 0.22 9 0.24 0.25 4

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.37 0.39 5 0.37 0.38 3 3.1 3.8 20 3.1 3.13 1

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.02 0.02 0 0.02 <0.02 0 0.28 0.27 4 0.28 0.28 0

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 0.82 0.91 10 0.82 0.72 13 17.0 16.0 6 17.0 12.6 30

PFHxS + PFOS µg/L 0.01 1.19 1.3 9 1.19 1.1 8 20.1 19.8 2 20.1 15.6 25

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.04 0.04 0 0.04 0.03 29 0.31 0.29 7 0.31 0.26 18

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 0 <0.05 <0.05 0 0.36 0.29 22 0.36 0.43 18

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 0.01 0.02 67 0.01 <0.05 0

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) 1.35 1.46 8 1.35 1.21 11 23.36 23.21 1 23.36 18.7 22Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab) 1.29 1.4 8 1.29 1.18 9 22.76 22.64 1 22.76 18.2 22

*RPDs have only been considered where a concentration is greater than 0 times the EQL.

**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )

***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('580283','580450','580464')

754-MELEN199421 1 of 4

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J52

Page 53: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Groundwater Monitoring Event

Field Replicate RPD Summary Table

Department of Defence

Field Duplicates (WATER) Lab Report Number

Field IDSample Date

Chem_Group ChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab)

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab)

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01

PFHxS + PFOS µg/L 0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab)

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab)Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

*RPDs have only been considered where a concentration is greater than 0 times the EQL.

**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )

***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('580283','580450','580464')

580450 580450 580450 EB1801996 580450 580450 580450 EB1801996 580464 580464 580464 EB1801996

1302_MW148_180115 1302_QCMW19_180115 RPD 1302_MW148_180115 QCMW20_180115 RPD 1302_MW125_180115 1302_QCMW21_180115 RPD 1302_MW125_180115 QCMW22_180115 RPD 1302_MW114_180112 1302_QCMW07_180112 RPD 1302_MW114_180112 QCMW08_180112 RPD15/01/2018 15/01/2018 15/01/2018 15/01/2018 15/01/2018 15/01/2018 15/01/2018 15/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018

Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab

<0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.05 0 <0.05 <0.1 0

0.06 0.06 0 0.06 0.08 29 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

0.31 0.3 3 0.31 0.3 3 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

0.05 0.05 0 0.05 0.05 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

0.11 0.12 9 0.11 0.12 9 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

0.23 0.23 0 0.23 0.25 8 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

2.4 2.3 4 2.4 2.66 10 0.08 0.04 67 0.08 0.05 46 0.03 0.03 0 0.03 0.04 29

0.17 0.15 13 0.17 0.2 16 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

7.9 6.1 26 7.9 5.17 42 0.25 0.12 70 0.25 0.04 145 0.19 0.23 19 0.19 0.16 17

10.3 8.4 20 10.3 7.83 27 0.33 0.16 69 0.33 0.09 114 0.22 0.26 17 0.22 0.2 10

<0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

0.31 0.31 0 0.31 0.25 21 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

<0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

<0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

11.54 9.62 18 11.54 9.08 24 0.33 0.16 69 0.33 0.09 114 0.22 0.26 17 0.22 0.2 1011.06 9.16 19 11.06 8.63 25 0.33 0.16 69 0.33 0.09 114 0.22 0.26 17 0.22 0.2 10

754-MELEN199421 2 of 4

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J53

Page 54: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Groundwater Monitoring Event

Field Replicate RPD Summary Table

Department of Defence

Field Duplicates (WATER) Lab Report Number

Field IDSample Date

Chem_Group ChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab)

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab)

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01

PFHxS + PFOS µg/L 0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab)

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab)Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

*RPDs have only been considered where a concentration is greater than 0 times the EQL.

**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )

***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('580283','580450','580464')

580464 580464 580464 EB1801996 580464 580464 580464 EB1801996 580464 580464 580464 EB1801996

1302_MW116_180112 1302_QCMW09_180112 RPD 1302_MW116_180112 QCMW10_180112 RPD 1302_MW170_180112 1302_QCMW13_180112 RPD 1302_MW170_180112 QCMW14_180112 RPD 1302_MW133_180112 1302_QCMW15_180112 RPD 1302_MW133_180112 QCMW16_180112 RPD12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018 12/01/2018

Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab Primary Intra-lab Primary Inter-lab

0.45 0.7 43 0.45 0.8 56 <0.05 <0.05 0 <0.05 <0.1 0 0.19 0.2 5 0.19 0.2 5

0.96 1.4 37 0.96 1.27 28 0.09 0.09 0 0.09 0.09 0 0.63 0.59 7 0.63 0.54 15

4.5 6.6 38 4.5 5.98 28 0.41 0.41 0 0.41 0.38 8 3.0 3.0 0 3.0 2.74 9

0.46 0.75 48 0.46 0.79 53 0.06 0.06 0 0.06 0.07 15 0.27 0.28 4 0.27 0.28 4

1.2 1.6 29 1.2 1.85 43 0.12 0.11 9 0.12 0.13 8 0.56 0.59 5 0.56 0.65 15

<0.2 0.03 0 <0.2 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 0.02 0.02 0 0.02 <0.02 0

<0.2 0.01 0 <0.2 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 0.01 0 <0.01 <0.02 0

<0.2 <0.01 0 <0.2 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.2 <0.01 0 <0.2 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.2 0.1 0 <0.2 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

<0.2 <0.01 0 <0.2 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

2.4 3.0 22 2.4 3.96 49 0.16 0.17 6 0.16 0.21 27 0.35 0.34 3 0.35 0.44 23

19.0 29.0 42 19.0 30.8 47 2.1 2.0 5 2.1 2.11 0 6.8 7.3 7 6.8 7.32 7

1.3 1.9 38 1.3 2.04 44 0.14 0.13 7 0.14 0.15 7 0.66 0.64 3 0.66 0.77 15

58.0 69.0 17 58.0 66.2 13 7.2 6.7 7 7.2 6.39 12 45.0 47.0 4 45.0 38.4 16

77.0 98.0 24 77.0 97.0 23 9.3 8.7 7 9.3 8.5 9 51.8 54.3 5 51.8 45.7 13

<0.2 <0.01 0 <0.2 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0 <0.01 <0.01 0 <0.01 <0.02 0

2.6 3.2 21 2.6 4.33 50 0.2 0.2 0 0.2 0.22 10 0.55 0.55 0 0.55 0.55 0

<0.2 <0.05 0 <0.2 0.15 0 <0.05 <0.05 0 <0.05 <0.02 0 0.07 0.08 13 0.07 0.03 80

<0.2 <0.05 0 <0.2 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.2 <0.05 0 <0.2 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.2 <0.05 0 <0.2 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.2 <0.05 0 <0.2 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0

<0.2 <0.05 0 <0.2 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

<0.2 <0.05 0 <0.2 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0 <0.05 <0.05 0 <0.05 <0.02 0

<0.2 <0.01 0 <0.2 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

<0.2 <0.05 0 <0.2 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 0.27 0.26 4 0.27 0.38 34

<0.2 <0.01 0 <0.2 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 0.07 0.07 0 0.07 0.08 13

<0.2 <0.01 0 <0.2 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0 <0.01 <0.01 0 <0.01 <0.05 0

90.87 117.29 25 90.87 118.0 26 10.48 9.87 6 10.48 9.75 7 58.44 60.93 4 58.44 52.4 1186.97 112.05 25 86.97 112.0 25 10.14 9.54 6 10.14 9.38 8 57.14 59.63 4 57.14 51.0 11

754-MELEN199421 3 of 4

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J54

Page 55: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Groundwater Monitoring Event

Field Replicate RPD Summary Table

Department of Defence

Field Duplicates (WATER) Lab Report Number

Field IDSample Date

Chem_Group ChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab)

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab)

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01

PFHxS + PFOS µg/L 0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab)

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab)

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab)

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab)

Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab)Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

*RPDs have only been considered where a concentration is greater than 0 times the EQL.

**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )

***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('580283','580450','580464')

580464 580464 580464 EB1801996

1302_MW118_180112 1302_QCMW17_180112 RPD 1302_MW118_180112 QCMW18_180112 RPD12/01/2018 12/01/2018 12/01/2018 12/01/2018

Primary Intra-lab Primary Inter-lab

0.07 0.06 15 0.07 <0.1 0

0.11 0.11 0 0.11 0.12 9

0.56 0.54 4 0.56 0.52 7

0.1 0.09 11 0.1 0.09 11

0.19 0.19 0 0.19 0.21 10

<0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.02 0

<0.01 <0.01 0 <0.01 <0.05 0

0.28 0.27 4 0.28 0.36 25

3.7 3.6 3 3.7 3.45 7

0.24 0.26 8 0.24 0.31 25

11.0 10.0 10 11.0 9.53 14

14.7 13.6 8 14.7 13.0 12

<0.01 <0.01 0 <0.01 <0.02 0

0.38 0.37 3 0.38 0.41 8

<0.05 <0.05 0 <0.05 <0.02 0

<0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.05 0

<0.05 <0.05 0 <0.05 <0.02 0

<0.05 <0.05 0 <0.05 <0.02 0

<0.01 <0.01 0 <0.01 <0.05 0

<0.05 <0.05 0 <0.05 0.05 0

<0.01 <0.01 0 <0.01 <0.05 0

<0.01 <0.01 0 <0.01 <0.05 0

16.63 15.49 7 16.63 15.0 1016.01 14.86 7 16.01 14.3 11

754-MELEN199421 4 of 4

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J55

Page 56: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

PFAS Assessment

January 2018 Groundwater Monitoring Event

Field Blanks Summary Table

Department of Defence

Field Blanks (WATER) Lab Report Number 580283 580450 580464 580283 580450 580464

Field ID 1302_QCMW05_180111 1302_QCMW23_180115 1302_QCMW11_180112 1302_QCMW01_180111 1302_QCMW24_180115 1302_QCMW12_180112

Sampled_Date/Time 11/01/2018 15/01/2018 12/01/2018 11/01/2018 15/01/2018 12/01/2018Sample Type Rinsate Rinsate Rinsate Trip Blank Trip Blank Trip Blank

Chem_Group ChemName Units EQL

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Filter: Lab_Report_Number in('580283','580450','580464')

754-MELEN199421 1 of 1

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J56

Page 57: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

5. SURFACE WATER (March)

Surface water sampling was undertaken in March 2018 from various surface water bodies within the investigation area, including weekly sampling from some points. A review of the field quality assurance and quality control results has been prepared and a collated review of internal laboratory quality assurance/quality control has been undertaken combining sampling undertaken across the month.

5.1. March 2018

5.1.1. QA/QC General

Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

5 Were samples labelled correctly

Comments

Sample SW135 was broken during transit to the laboratory.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J57

Page 58: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Quality control samples collected on 7 March 2018 were mis-labelled and quality control samples collected as a part of the groundwater monitoring program were mislabelled as surface water samples. The table below provides a summary of the mis-labelling of surface water quality control samples

Surface Water QC

Sample ID (on COC)

Quality Control Sample

Details

Correct sample within the

bottle supplied to the

laboratory

Actual surface water

quality control sample

labelled as (and

analysed as)

QCSW13 Trip Blank Duplicate of monitoring well

206-MW06

QCMW13

QCSW15 Triplicate of SW132 Duplicate of monitoring well

204_MW04

QCMW15

QCSW16 Trip Blank Triplicate of monitoring well

204_MW04

QCMW16

QCSW17 Rinsate off Pole Duplicate of monitoring well

MW199

QCMW17

QCSW18 Duplicate of SW105 Triplicate of monitoring well

MW199

QCMW18

The results presented in the RPD calculation and blank summary tables have been corrected to provide the results for the actual corresponding sample.

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

5.1.2. Field QA/QC

Type of QA/QC Samples Collected

Primary Samples 94

Days of sampling 7

Field Duplicates (at least 1 in 20 samples) 11 intra lab + 10 inter lab

Trip Blanks (at least 1 per sampling event) 10

Equipment Rinsate (at least

1/day/matrix/equipment)

10

Samples Analysed

Ninety four samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over seven days of sampling. Eleven duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Ten triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J58

Page 59: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 11 and ESDAT export table following Section 5.3.

There were 308 duplicate pair analyses for PFAS compounds and 98.05% were reported within the acceptance target of less than 30 % RPD. There were 280 triplicate pair analyses for PFAS compounds and 97.86 % were reported within the acceptance target of less than 30 % RPD.

Table 11. RPDs outside Acceptable Range

Primary sample Duplicate/

Triplicate

sample

Laboratory Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_SW170_18

0301

Duplicate Eurofins Perfluoro-n-hexanoic acid (PFHxA) 40 Y

1302_SW149_18

0306

Duplicate Eurofins Perfluoro-n-hexanoic acid (PFHxA) 100 Y

Perfluoro-n-hexane sulfonic acid (PFHxS) 169 Y

Perfluoro-n-octane sulfonic acid (PFOS) 150 Y

Triplicate ALS Perfluoro-n-hexanoic acid (PFHxA) 67 Y

Perfluoro-n-hexane sulfonic acid (PFHxS) 169 Y

Perfluoro-n-octane sulfonic acid (PFOS) 133 Y

1302_SW151_18

0305

Triplicate ALS Perfluoro-n-hexanoic acid (PFHxA) 40 N

1302_SW144_18

0307

Triplicate ALS Perfluoro-n-octanoate acid (PFOA) 67 N

1302_SW109_18

0308

Duplicate Eurofins Perfluoro-n-octanoate acid (PFOA) 67 Y

1302_SW105_18

0307

Duplicate Eurofins Perfluoro-n-octane sulfonic acid (PFOS 46 N

Triplicate ALS Perfluoro-n-octane sulfonic acid (PFOS 56 N

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J59

Page 60: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

The RPD discrepancies observed in the March 2018 surface water sampling largely were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results. Generally, the majority of the discrepancies were between the primary and secondary laboratory, with the secondary laboratory showing no particular bias compared to the primary laboratory. Despite the discrepancies observed, the results from the March 2018 surface water sampling were generally considered acceptable and able to be relied on for the report.

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Ten rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Surface water sampling water was undertaken using a new HDPE bottle mounted within an aluminium pole. Other non-disposable equipment used included water quality meters.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, aluminium pole sampler, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J60

Page 61: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

5.2. Laboratory QA/QC (March 2018)

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

5.2.1. Laboratory Blanks.

All 760 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

5.2.2. Laboratory Duplicates

A total of 405 internal laboratory duplicates were analysed by Eurofins and one was outside of the acceptable limits (<30% RPD) for Perfluorooctanoic Acid (PFOA) (67%).

5.2.3. Laboratory Control Samples

A total of 324 laboratory control sample analyses were performed by Eurofins and of these, 16 LCS was outside of the acceptable range (>50%). The compounds with LCS discrepancies were not a primary PFAS compounds of concern (PFOS, PFHxS and PFOA) and these minor discrepancies were not considered to impact on the overall quality of the laboratory results.

5.2.4. Matrix Spikes

A total of 440 matrix spike analyses were performed by Eurofins and of these 26 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, none were for the primary PFAS compounds of concern (PFOS, PFHxS and PFOA) and all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

5.2.5. Surrogate recoveries

The collated laboratory data for surrogate recoveries reported 69 surrogates (out of a total of 2,923 surrogate analyses undertaken) below the lower recovery limit of 20%. A total of 54 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 193%).

A summary of the internal laboratory quality control results is provided in Table 12.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J61

Page 62: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 12: Summary of internal laboratory QC results

QC test Total Analyses Number outside of

Acceptable Criteria

% of analyses

acceptable

Method Blanks 760 0 100

Laboratory Duplicates 405 1 99.7

Laboratory Control

Samples

324 16 95.1

Matrix Spikes 440 26 94.1

Surrogates 2,923 123 95.8

Totals 4,852 166 96.6

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 96.6%, which is above the 95% target and the data is therefore considered of an acceptable quality to use in the report.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

5.3. Summary of March 2018 Surface Water Data Quality Review

In general, the data quality of the March 2018 Surface water monitoring events was considered to be acceptable. Minor QC deficiencies (RPDs and internal laboratory discrepancies) were considered unlikely to impact on the outcome of the report. Mis-labelling of some quality control samples on the 7 March 2018 occurred with some surface water quality control samples being labelled as groundwater quality control samples and vice-versa. An in-depth review of the results of the laboratory results, as well as field sheets, and interviews with field staff identified this error, and has been corrected within the results tables. No mis-labelling of primary samples appears to have occurred.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J62

Page 63: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 1 of 7

Lab Report Number 587405 587405 EB1805816 587405 587405 EB1805816 588376 588376 EB1806262Field ID 1302_SW100_180301 1302_QCSW02_180301 RPD 1302_QCSW03_180301 RPD 1302_SW170_180301 1302_QCSW04_180301 RPD 1302_QCSW05_180301 RPD 1302_SW149_180306 1302_QCSW10_180306 RPD QCSW11_180306 RPDSampled Date/Time 1/03/2018 1/03/2018 1/03/2018 1/03/2018 1/03/2018 1/03/2018 6/03/2018 6/03/2018 6/03/2018

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.1 0 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.01 0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.02 0.03 40 0.02 0 <0.01 0.03 100 0.02 67 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 0 <0.01 0 <0.01 <0.01 0 <0.01 0 <0.01 0.01 0 <0.01 0 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.01 0.01 0 <0.02 0 <0.01 0.01 0 <0.02 0 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.09 0.12 29 0.1 11 <0.01 0.12 169 0.12 169 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 0 <0.01 0 0.4 0.48 18 0.31 25 0.03 0.21 150 0.15 133 PFHxS + PFOS µg/L 0.01 <0.01 <0.01 0 <0.01 0 0.49 0.6 20 0.41 18 0.03 0.33 167 0.27 160 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.01 0.01 0 <0.02 0 <0.01 0.01 0 <0.02 0 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) <0.1 <0.1 0 <0.01 0 0.54 0.66 20 0.43 23 <0.1 0.39 118 0.29 97 Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab) <0.05 <0.05 0 <0.01 0 0.53 0.65 20 0.43 21 <0.05 0.38 153 0.29 141

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J63

Page 64: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 2 of 7

Lab Report NumberField IDSampled Date/Time

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

588748 588748 EB1806463 588748 588748 EB1806463 588748 588748 EB18064631302_SW151_180305 1302_QCSW02_180305 RPD 1302_QCSW03_180305 RPD 1302_SW123_180306 1302_QCSW06_180306 RPD 1302_QCSW07_180306 RPD 1302_SW132_180307 1302_QCSW14_180307 RPD 1302_QCSW15_180307

5/03/2018 5/03/2018 5/03/2018 6/03/2018 6/03/2018 6/03/2018 7/03/2018 7/03/2018 7/03/2018Analysed by the lab as

sample 1302_QCMW15_180307

<0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.5 0 <0.05 <0.05 0 <0.050.02 0.02 0 0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.010.08 0.08 0 0.08 0 <0.01 <0.01 0 <0.1 0 0.01 0.01 0 0.01

<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.010.03 0.03 0 0.02 40 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01

<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.25 0 <0.01 <0.01 0 <0.010.03 0.03 0 0.03 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.010.32 0.25 25 0.34 6 <0.01 <0.01 0 <0.1 0 0.08 0.08 0 0.080.02 0.02 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.010.88 1.0 13 0.77 13 <0.01 <0.01 0 <0.1 0 0.2 0.17 16 0.211.2 1.25 4 1.11 8 <0.01 <0.01 0 <0.1 0 0.28 0.25 11 0.29

<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.010.03 0.03 0 0.03 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01

<0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.25 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.25 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.25 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.25 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.05<0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.05<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.05<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.01<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.1 0 <0.01 <0.01 0 <0.011.41 1.46 3 1.29 9 <0.1 <0.1 0 <0.1 0 0.29 0.26 11 0.31.36 1.41 4 1.26 8 <0.05 <0.05 0 <0.1 0 0.29 0.26 11 0.3

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J64

Page 65: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 3 of 7

Lab Report NumberField IDSampled Date/Time

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

588748 588748 EB1806463 588748 588748 EB1806463 588748 588748RPD 1302_SW144_180307 1302_QCSW20_180307 RPD 1302_QCSW21_180307 RPD 1302_SW184_180307 1302_QCSW22_180307 RPD 1302_QCSW23_180307 RPD 1302_SW109_180308 1302_QCSW28_180308 RPD

7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 8/03/2018 8/03/2018

0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.1 0 <0.05 <0.05 00 0.02 0.02 0 0.02 0 <0.01 <0.01 0 <0.02 0 0.01 0.01 00 0.05 0.06 18 0.05 0 <0.01 <0.01 0 <0.02 0 0.05 0.05 00 0.01 0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 0.02 0.02 0 <0.01 67 <0.01 <0.01 0 <0.01 0 0.01 0.02 670 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 00 0.05 0.05 0 0.05 0 <0.01 <0.01 0 <0.02 0 0.03 0.03 00 0.37 0.41 10 0.36 3 0.07 0.07 0 0.07 0 0.26 0.27 40 0.02 0.02 0 <0.02 0 <0.01 <0.01 0 <0.02 0 0.02 0.02 05 0.63 0.64 2 0.49 25 0.11 0.11 0 0.08 32 0.61 0.62 24 1.0 1.05 5 0.85 16 0.18 0.18 0 0.15 18 0.87 0.89 20 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 00 0.05 0.05 0 0.04 22 <0.01 <0.01 0 <0.02 0 0.03 0.03 00 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 00 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 00 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 00 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 00 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 00 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 00 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 00 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 00 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 00 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 00 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 03 1.22 1.28 5 1.01 19 0.18 0.18 0 0.15 18 1.02 1.05 33 1.15 1.21 5 0.97 17 0.18 0.18 0 0.15 18 0.97 1.0 3

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J65

Page 66: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 4 of 7

Lab Report NumberField IDSampled Date/Time

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

EB1806463 588757 588757 EB1806470 588963 5889631302_QCSW29_180308 RPD 1302_SW105_180307 1302_QCSW18_180307 RPD 1302_QCSW19180307 RPD 1302_SW175_180312 1302_QCSW37_180312 RPD

8/03/2018 7/03/2018 7/03/2018 7/03/2018 12/03/2018 12/03/2018Analysed by the lab as

sample 1302_QCMW18_180307

<0.1 0 <0.05 <0.1 0 <0.1 0 <0.05 <0.05 0<0.02 0 <0.01 <0.02 0 <0.02 0 0.01 0.01 00.06 18 0.02 0.02 0 0.02 0 0.02 0.02 0

<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 00.01 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.01 0

<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 0<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 0<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 0<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 0<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 0<0.05 0 <0.01 <0.05 0 <0.05 0 <0.01 <0.01 00.03 0 0.01 <0.02 0 <0.02 0 <0.01 <0.01 00.28 7 0.11 0.12 9 0.12 9 0.03 0.03 0

<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 00.45 30 0.32 0.2 46 0.18 56 0.17 0.13 270.73 18 0.43 0.32 29 0.3 36 0.2 0.16 22

<0.02 0 <0.01 <0.02 0 <0.02 0 <0.01 <0.01 00.03 0 0.01 <0.02 0 <0.02 0 <0.01 <0.01 0

<0.02 0 <0.05 <0.02 0 <0.02 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0<0.02 0 <0.05 <0.02 0 <0.02 0 <0.05 <0.05 0<0.02 0 <0.05 <0.02 0 <0.02 0 <0.05 <0.05 0<0.05 0 <0.01 <0.05 0 <0.05 0 <0.01 <0.01 0<0.05 0 <0.05 <0.05 0 <0.05 0 0.05 0.05 0<0.05 0 <0.01 <0.05 0 <0.05 0 <0.01 <0.01 0<0.05 0 <0.01 <0.05 0 <0.05 0 <0.01 <0.01 00.86 17 0.47 0.34 32 0.32 38 0.28 0.24 150.83 16 0.46 0.34 30 0.32 36 0.28 0.24 15

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J66

Page 67: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventField Blanks Summary Table

Department of Defence

754-MELEN199421 Page 5 of 7

Lab Report Number 587405 588748 588376 588748 588748 588757 588748 588975 588959Field ID 1302_QCSW06_180301 1302_QCSW04_180305 1302_QCSW09_180306 1302_QCSW12_180306 1302_QCSW24_180307 1302_QCSW17_180307 1302_QCSW30_180308 1302_QCSW27_180308 1302_QCSW32_180309Sampled_Date/Time 1/03/2018 5/03/2018 6/03/2018 6/03/2018 7/03/2018 7/03/2018 8/03/2018 8/03/2018 9/03/2018Sample Type Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate

Notes

Analysed by the lab as sample

1302_QCMW17_180307Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J67

Page 68: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventField Blanks Summary Table

Department of Defence

754-MELEN199421 Page 6 of 7

Lab Report NumberField IDSampled_Date/TimeSample Type

NotesChem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 Sum of PFASs (n=28) µg/L 0.1 Sum of WA DER PFAS (n=10) µg/L 0.05

588963 587405 588748 588376 588748 588748 588757 588748 5889751302_QCSW36_180312 1302_QCSW01_180301 1302_QCSW01_180305 1302_QCSW08_180306 1302_QCSW05_180306 1302_QCSW13_180307 1302_QCSW16_180307 1302_QCSW25_180308 1302_QCSW26_180308

12/03/2018 1/03/2018 5/03/2018 6/03/2018 6/03/2018 7/03/2018 7/03/2018 8/03/2018 8/03/2018Rinsate Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B

Analysed by the lab as sample

1302_QCMW13_180307

Analysed by the lab as sample

1302_QCMW16_180307

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J68

Page 69: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Surface Water Monitoring EventField Blanks Summary Table

Department of Defence

754-MELEN199421 Page 7 of 7

Lab Report NumberField IDSampled_Date/TimeSample Type

NotesChem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 Sum of PFASs (n=28) µg/L 0.1 Sum of WA DER PFAS (n=10) µg/L 0.05

588959 5889631302_QCSW31_180309 1302_QCSW35_180312

9/03/2018 12/03/2018Trip_B Trip_B

<0.05 <0.05<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.01 <0.01<0.05 <0.05<0.05 <0.05<0.05 <0.05<0.05 <0.05<0.05 <0.05<0.05 <0.05<0.05 <0.05<0.01 <0.01<0.05 <0.05<0.01 <0.01<0.01 <0.01<0.1 <0.1<0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J69

Page 70: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

6. GROUNDWATER (March 2018)

6.1. QA/QC General

6.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

6.1.2. Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

5 Were samples labelled correctly

Comments

Quality control samples collected on 7 March 2018 were mis-labelled and quality control samples collected as a part of the groundwater monitoring program were mislabelled as surface water samples. The table below provides a summary of the mis-labelling of groundwater quality control samples

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J70

Page 71: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Groundwater QC

Sample ID (on COC)

Quality Control

Sample Details

Correct sample

within the bottle

supplied to the

laboratory

Actual groundwater

quality control

sample labelled as

(and analysed as)

QCMW13 Duplicate of

monitoring well 206-

MW06

Trip Blank (surface

waters)

QCSW13

QCMW15 Duplicate of

monitoring well

204_MW04

Triplicate of surface

water sample SW132

QCSW15

QCMW16 Triplicate of monitoring

well 204_MW04

Trip Blank (surface

waters)

QCSW16

QCMW17 Duplicate of

monitoring well

MW199

Rinsate off Pole

(surface waters)

QCSW17

QCMW18 Triplicate of monitoring

well MW199

Duplicate of surface

water sample SW105

QCSW18

The results presented in the RPD calculation and blank summary tables have been corrected to provide the results for the actual corresponding sample.

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

6.2. Field QA/QC

6.2.1. Type of QA/QC Samples Collected

Primary Samples 151

Days of sampling 6

Field Duplicates (at least 1 in 20 samples) 17 intra lab + 13 inter lab

Trip Blanks (at least 1 per sampling event) 9

Equipment Rinsate (at least

1/day/matrix/equipment)

9

6.2.2. Samples Analysed

151 samples were collected and sent to the primary laboratory Eurofins Environmental Consulting over three days of sampling. 17 duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting. 13 triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

6.2.3. Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J71

Page 72: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in the ESDAT export table following Section 6.4.

There were 476 duplicate pair analyses for PFAS compounds and 98.3 % were reported within the acceptance target of less than 30 % RPD. There were 364 triplicate pair analyses for PFAS compounds and 98.1% were reported within the acceptance target of less than 30 % RPD.

The RPD discrepancies observed in the March 2018 groundwater sampling event largely were attributed to analytical results in one of the samples being either at or marginally above the laboratory reporting limit, and the other below – which magnifies the relative difference between the results.

Generally, the majority of the discrepancies were between the primary and secondary laboratory indicated that the secondary laboratory was reporting lower concentrations of PFAS compounds than the primary laboratory, suggesting a slight bias. This bias adds a level of conservatism to the results and despite the discrepancies observed, the RPD results from the March 2018 groundwater sampling were generally considered acceptable and able to be relied on for the report.

6.2.4. Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Nine rinsate blanks were submitted to Eurofins for selected analysis of PFAS. Groundwater sampling was undertaken using hydrasleeve sampling and the only non-disposable equipment used included interface probes and water quality meters.

Rinsate samples were collected from the field equipment (e.g. sampling gloves, water quality meter, and interface probe) after decontamination. Equipment rinsate samples were collected by pouring laboratory prepared deionised water over the equipment and collecting the ‘rinse’ into sample containers. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks. A rinsate sample was collected for each day of groundwater sampling.

The rinsate results indicated that the decontamination procedures were acceptable and it is considered that there is a low potential for cross-contamination to have impacted on the laboratory results.

6.2.5. Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J72

Page 73: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Concentrations for all analytes were below the laboratory LOR for all trip blanks and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

6.3. Laboratory QA/QC

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

6.3.1. Laboratory Blanks.

All 252 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

6.3.2. Laboratory Duplicates

A total of 504 internal laboratory duplicates were analysed by Eurofins and three RPDs (Perfluoropentanoic acid (PFPeA) – 67%; Perfluorohexanesulfonic acid (PFHxS) – 32%; Perfluorooctanesulfonic acid (PFOS) – 46%) were outside of acceptable limits (<30% RPD).

6.3.3. Laboratory Control Samples

A total of 252 laboratory control sample analyses were performed by Eurofins and of these, 22 LCS was outside of the acceptable range (>50%). The compounds with LCS discrepancies were not a primary PFAS compounds of concern (PFOS, PFHxS and PFOA). However, this minor discrepancies were not considered to impact on the overall quality of the laboratory results.

6.3.4. Matrix Spikes

A total of 419 matrix spike analyses were performed by Eurofins and of these 23 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J73

Page 74: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

6.3.5. Surrogate recoveries

The collated laboratory data for surrogate recoveries reported 4 surrogates (out of a total of 4,347 surrogate analyses undertaken) below the lower recovery limit of 20%. A total of 27 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 187%). .

A summary of the internal laboratory quality control results is provided in Table 13.

Table 13: Summary of internal laboratory QC results

QC test Total Analyses Number outside of Acceptable Criteria

% of analyses acceptable

Method Blanks 252 0 100

Laboratory Duplicates

504 3 99.4

Laboratory Control Samples

252 22 91.3

Matrix Spikes 419 23 94.5

Surrogates 4,347 31 99.2

Totals 5,774 79 98.6

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 98.6%, which is above the 95% target. Consequently, the data is therefore considered of an acceptable quality to use in the report.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

6.4. Summary of March 2018 GME Data Quality Review

In general, the data quality of the March 2018 groundwater monitoring event was considered to be acceptable. Minor discrepancies in replicate results between the primary and secondary laboratory were observed, with the primary laboratory generally reporting higher concentrations of PFAS than the secondary laboratory, which adds a level of conservatism to the results. Other minor QC deficiencies (internal laboratory discrepancies) were also considered unlikely to impact on the outcome of the report.

Mis-labelling of some quality control samples on the 7 March 2018 occurred with some surface water quality control samples being labelled as groundwater quality control samples and vice-versa. An in-depth review of the results of the laboratory results, as well as field sheets, and interviews with field staff identified this error, and has been corrected within the results tables. No mis-labelling of primary samples occurred.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J74

Page 75: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 1 of 8

R Lab Report Number 588389 588389 EB1806262 588389 588389 EB1807031 588753 588753Field ID 1302_MW207_180306 1302_QCMW03_180306 RPD QCMW04_180306 RPD 1302_MW171_180306 1302_QCMW05_180306 RPD QCMW06_180306 RPD 1302_MW156_180307 1302_QCMW11_180307 RPDSample Date 6/03/2018 6/03/2018 6/03/2018 6/03/2018 6/03/2018 6/03/2018 7/03/2018 7/03/2018

Chem_Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.1 0 0.08 0.09 12 <0.1 0 0.09 0.09 0 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.18 0.19 5 0.15 18 0.14 0.13 7 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 1.0 1.0 0 0.82 20 0.71 0.71 0 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.12 0.12 0 0.12 0 0.08 0.08 0 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 0 <0.01 0 0.24 0.22 9 0.22 9 0.17 0.17 0 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.02 <0.01 67 <0.02 0 <0.01 <0.01 0 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.01 <0.01 0 <0.02 0 0.28 0.29 4 0.28 0 0.37 0.37 0 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.16 0.15 6 0.15 6 3.5 3.5 0 2.97 16 3.4 3.6 6 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.38 0.37 3 0.22 53 0.2 0.2 0 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 0.14 0.13 7 0.1 33 9.5 7.9 18 6.96 31 8.9 8.3 7 PFHxS + PFOS µg/L 0.01 0.3 0.28 7 0.25 18 13.0 11.4 13 9.93 27 12.3 11.9 3 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) <0.01 <0.01 0 <0.02 0 0.02 0.02 0 <0.02 0 <0.01 <0.01 0 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) 0.01 0.01 0 <0.02 0 0.33 0.34 3 0.32 3 0.41 0.38 8 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 0.04 0 <0.05 <0.05 0 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 0 <0.05 0 0.05 0.06 18 0.06 18 <0.05 <0.05 0 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 0.09 0.09 0 0.09 0 <0.01 <0.01 0 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) 0.32 0.29 10 0.25 25 15.79 14.19 11 12.2 26 14.47 14.03 3 Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab) 0.31 0.28 10 0.25 21 15.04 13.46 11 11.7 25 13.86 13.45 3

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J75

Page 76: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 2 of 8

R Lab Report NumberField IDSample Date

Chem_Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

EB1806472 588753 588753 EB1806472 588753 588753 EB18064721302_QCMW12_180307 RPD 1302_206_MW06_180307 1302_QCMW13_180307 RPD 1302_QCMW14_180307 RPD 1302_205_MW05_180307 1302_QCMW19_180307 RPD 1302_QCMW20_180307 RPD

7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018Analysed by the lab as

sample 1302_QCSW13_180307

<0.1 0 <0.05 <0.05 <0.1 0 <0.05 <0.05 0 <0.1 00.14 0 0.09 0.12 29 0.09 0 0.02 0.02 0 0.02 00.7 1 0.45 0.45 0 0.46 2 0.13 0.14 7 0.14 7

0.08 0 0.08 0.08 0 0.08 0 0.02 0.02 0 <0.02 00.14 19 0.13 0.15 14 0.12 8 0.04 0.04 0 0.03 29

<0.02 0 0.01 0.02 67 <0.02 0 <0.01 <0.01 0 <0.02 0<0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0<0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0<0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0<0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 0<0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 00.38 3 0.15 0.14 7 0.18 18 0.05 0.05 0 0.05 03.35 1 1.7 1.7 0 1.87 10 0.71 0.73 3 0.75 50.21 5 0.12 0.11 9 0.12 0 0.04 0.04 0 0.04 06.34 34 5.0 5.2 4 3.74 29 1.8 2.9 47 2.37 279.69 24 6.7 6.9 3 5.61 18 2.51 3.63 36 3.12 22

<0.02 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 00.39 5 0.18 0.17 6 0.19 5 0.06 0.06 0 0.06 0

<0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0<0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0<0.02 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 0<0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 0<0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0<0.05 0 0.08 0.1 22 0.08 0 <0.01 <0.01 0 <0.05 0<0.05 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 011.7 21 7.99 8.24 3 6.93 14 2.87 4.0 33 3.46 1911.1 22 7.68 7.94 3 6.62 15 2.77 3.9 34 3.36 19

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J76

Page 77: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 3 of 8

R Lab Report NumberField IDSample Date

Chem_Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

588753 588753 EB1806472 588758 588758 EB1806473 588758 5887581302_MW143_180307 1302_QCMW21_180307 RPD 1302_QCMW22_180307 RPD 1302_MW199_180307 1302_QCMW17_180307 RPD 1302_QCMW18_180307 RPD 1302_204_MW04_180307 1302_QCMW15_180307

7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018 7/03/2018Analysed by the lab as

sample 1302_QCSW17_180307

Analysed by the lab as sample

1302_QCSW18_180307

Analysed by the lab as sample

1302_QCSW15_180307

<0.05 <0.05 0 <0.1 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.10.08 0.08 0 0.08 0 <0.01 <0.01 0 <0.01 0 0.08 0.070.44 0.44 0 0.42 5 <0.01 <0.01 0 <0.01 0 0.42 0.40.06 0.06 0 0.05 18 <0.01 <0.01 0 <0.01 0 0.05 0.040.12 0.12 0 0.1 18 <0.01 <0.01 0 <0.01 0 0.12 0.09

<0.01 0.01 0 <0.02 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.02<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.02<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.02<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.02<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.02<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.050.31 0.31 0 0.32 3 <0.01 <0.01 0 <0.01 0 0.26 0.252.4 2.4 0 2.27 6 <0.01 <0.01 0 <0.01 0 2.4 2.34

0.14 0.14 0 0.15 7 <0.01 <0.01 0 <0.01 0 0.13 0.133.1 3.4 9 2.64 16 <0.01 <0.01 0 <0.01 0 6.5 4.65.5 5.8 5 4.91 11 <0.01 <0.01 0 <0.01 0 8.9 6.94

<0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.020.32 0.31 3 0.33 3 <0.01 <0.01 0 <0.01 0 0.25 0.24

<0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.02<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05<0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.02<0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.02<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.05<0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.05<0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.01 0 <0.01 <0.056.97 7.27 4 6.36 9 <0.1 <0.1 0 <0.1 0 10.21 8.166.51 6.81 5 5.88 10 <0.05 <0.05 0 <0.05 0 9.83 7.79

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J77

Page 78: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 4 of 8

R Lab Report NumberField IDSample Date

Chem_Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

EB1806473 588759 588759 EB1806466 588759 588759 EB1806466RPD 1302_QCMW16_180307 RPD 1302_MW150_180308 1302_QCMW25_180308 RPD 1302_QCMW26_180308 RPD 1302_MW126_180308 1302_QCMW27_180308 RPD 1302_QCMW28_180308 RPD

7/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018Analysed by the lab as

sample 1302_QCSW16_180307

0 <0.05 0 <0.05 <0.05 0 <0.1 0 0.14 0.15 7 0.2 3513 0.08 13 <0.01 <0.01 0 <0.02 0 0.25 0.25 0 0.29 155 0.39 3 <0.01 <0.01 0 <0.02 0 1.3 1.3 0 1.32 222 0.05 22 <0.01 <0.01 0 <0.02 0 0.16 0.17 6 0.17 629 0.1 11 <0.01 <0.01 0 <0.01 0 0.34 0.35 3 0.31 90 <0.01 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 00 <0.01 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 00 <0.01 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 00 <0.01 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 00 <0.01 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 00 <0.01 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 04 0.24 4 <0.01 <0.01 0 <0.02 0 0.61 0.62 2 0.58 53 2.3 2 0.01 0.01 0 <0.02 0 5.4 6.2 14 5.61 40 0.12 8 <0.01 <0.01 0 <0.02 0 0.36 0.37 3 0.36 034 5.6 20 0.02 0.02 0 <0.01 67 16.0 18.0 12 10.8 3925 7.9 13 0.03 0.03 0 <0.01 100 21.4 24.2 12 16.4 260 <0.01 0 <0.01 <0.01 0 <0.02 0 <0.01 <0.01 0 <0.02 04 0.25 4 <0.01 <0.01 0 <0.02 0 0.68 0.72 6 0.67 10 <0.05 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 00 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 00 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 00 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 00 <0.05 0 <0.05 <0.05 0 <0.05 0 <0.05 <0.05 0 <0.05 00 <0.05 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 00 <0.05 0 <0.05 <0.05 0 <0.02 0 <0.05 <0.05 0 <0.02 00 <0.01 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 00 <0.05 0 <0.05 <0.05 0 <0.05 0 0.06 0.06 0 0.06 00 <0.01 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 00 <0.01 0 <0.01 <0.01 0 <0.05 0 <0.01 <0.01 0 <0.05 022 9.13 11 <0.1 <0.1 0 <0.01 0 25.3 28.19 11 20.4 2123 8.76 12 <0.05 <0.05 0 <0.01 0 24.26 27.1 11 19.3 23

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J78

Page 79: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 5 of 8

R Lab Report NumberField IDSample Date

Chem_Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

588949 588949 588949 588949 588968 588968 588968 5889681302_MW192_180309 1302_QCMW29_180309 RPD 1302_MW167_180309 1302_QCMW43_180309 RPD 1302_ASMW04_180308 1302_QCMW33_180308 RPD 1302_MW204_180308 1302_QCMW35_180308 RPD

8/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018 8/03/2018

<0.05 <0.05 0 0.13 0.13 0 0.38 0.35 8 <0.05 <0.05 0<0.01 <0.01 0 0.29 0.3 3 0.73 0.6 20 0.03 0.02 40<0.01 <0.01 0 1.7 1.6 6 2.0 1.8 11 0.04 0.04 0<0.01 <0.01 0 0.12 0.13 8 0.61 0.57 7 0.03 0.03 0<0.01 <0.01 0 0.28 0.3 7 1.1 1.1 0 0.04 0.04 0<0.01 <0.01 0 <0.01 <0.01 0 0.14 0.13 7 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.01 0 0.02 0.02 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.01 <0.01 0 0.45 0.46 2 0.71 0.64 10 0.02 0.02 00.02 0.02 0 4.6 4.6 0 4.6 3.8 19 0.13 0.13 0

<0.01 <0.01 0 0.53 0.48 10 0.45 0.29 43 <0.01 <0.01 00.04 0.04 0 19.0 20.0 5 18.0 19.0 5 0.46 0.46 00.06 0.06 0 23.6 24.6 4 22.6 22.8 1 0.59 0.59 0

<0.01 <0.01 0 0.02 0.03 40 0.01 0.01 0 <0.01 <0.01 0<0.01 <0.01 0 0.71 0.75 5 0.79 0.85 7 0.02 0.03 40<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.05 <0.05 0 0.12 0.12 0 0.08 0.08 0 <0.05 <0.05 0<0.01 <0.01 0 0.03 0.04 29 0.18 0.16 12 <0.01 <0.01 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0<0.1 <0.1 0 27.98 28.94 3 29.8 29.4 1 0.77 0.77 00.06 0.06 0 26.72 27.68 4 28.39 28.1 1 0.75 0.74 1

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J79

Page 80: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventQuality Control RPD Summary Table

Department of Defence

754-MELEN199421 Page 6 of 8

R Lab Report NumberField IDSample Date

Chem_Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 (Primary): 0.1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 (Primary): 0.05 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 (Primary): 0.02 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 (Primary): 0.02 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 (Primary): 0.02 (Interlab) 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 (Primary): 0.05 (Interlab) Sum of PFASs (n=28) µg/L 0.1 (Primary): 0.01 (Interlab) Sum of WA DER PFAS (n=10) µg/L 0.05 (Primary): 0.01 (Interlab)

588968 588968 588968 588968 595756 595756 595756 EB18104721302_222_MW01_180308 1302_QCMW37_180308 RPD 1302_MW108_180308 1302_QCMW39_180308 RPD 1302_MW212_180424 1302_QCMW02_180424 RPD 1302_MW212_180424 QCMW03_180424 RPD

8/03/2018 8/03/2018 8/03/2018 8/03/2018 24/04/2018 24/04/2018 24/04/2018 24/04/2018

<0.05 <0.05 0 0.12 0.12 0 <0.05 <0.05 0 <0.05 <0.1 00.09 0.09 0 0.27 0.29 7 <0.01 <0.01 0 <0.01 <0.02 00.48 0.39 21 1.3 1.3 0 <0.01 <0.01 0 <0.01 <0.02 00.09 0.09 0 0.15 0.15 0 <0.01 <0.01 0 <0.01 <0.02 00.27 0.27 0 0.35 0.37 6 <0.01 <0.01 0 <0.01 <0.01 0

<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 00.36 0.35 3 0.44 0.45 2 <0.01 <0.01 0 <0.01 <0.02 02.7 2.7 0 5.6 5.4 4 <0.01 <0.01 0 <0.01 <0.02 00.17 0.18 6 0.45 0.45 0 <0.01 <0.01 0 <0.01 <0.02 06.6 6.2 6 8.8 8.0 10 <0.01 <0.01 0 <0.01 <0.01 09.3 8.9 4 14.4 13.4 7 <0.01 <0.01 0 <0.01 <0.01 0

<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.02 00.56 0.51 9 0.82 0.86 5 <0.01 <0.01 0 <0.01 <0.02 0

<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0<0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.02 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 0<0.05 <0.05 0 0.12 0.12 0 <0.05 <0.05 0 <0.05 <0.05 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 0<0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.01 0 <0.01 <0.05 011.32 10.78 5 18.42 17.51 5 <0.1 <0.1 0 <0.1 <0.01 010.59 10.09 5 17.15 16.2 6 <0.05 <0.05 0 <0.05 <0.01 0

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J80

Page 81: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventField Blank Summary Table

Department of Defence

754-MELEN199421 Page 7 of 8

R Lab Report Number 588389 588753 588758 588759 588949 588961 588968 595756 590910Field ID 1302_QCMW01_180306 1302_QCMW08_180307 1302_QCMW10_180307 1302_QCMW24_180308 1302_QCMW42_180309 1302_QCMW46_180312 1302_QCMW32_180308 1302_QCMW04_180424 1302_QCMW02_180322Sample Date 6/03/2018 7/03/2018 7/03/2018 8/03/2018 8/03/2018 12/03/2018 8/03/2018 24/04/2018 22/03/2018Sample Type Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate Rinsate

Chem Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05 PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.05 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J81

Page 82: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

March 2018 Groundwater Monitoring EventField Blank Summary Table

Department of Defence

754-MELEN199421 Page 8 of 8

R Lab Report NumberField IDSample DateSample Type

Chem Group ChemName Units LORPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 PFHxS + PFOS µg/L 0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 Sum of PFASs (n=28) µg/L 0.1 Sum of WA DER PFAS (n=10) µg/L 0.05

588389 588753 588758 588759 588949 588961 588968 595756 5909101302_QCMW02_180306 1302_QCMW07_180307 1302_QCMW09_180307 1302_QCMW23_180308 1302_QCMW41_180309 1302_QCMW45_180312 1302_QCMW31_180308 1302_QCMW01_180424 1302_QCMW01_180322

6/03/2018 7/03/2018 7/03/2018 8/03/2018 8/03/2018 12/03/2018 8/03/2018 24/04/2018 22/03/2018Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B Trip_B

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.010.02 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.020.02 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.02

<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01<0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1

<0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J82

Page 83: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

7. VEGETATION BIOTA SAMPLING (November – December 2017)

The Biota sampled during this period included fruits and vegetables, plants.

7.1. QA/QC General 7.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted consistent with NEPM principles?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

At the start of the investigation Australian analytical labs were not NATA certified for PFAS analysis in biota. Coffey initially used National Measurement Institute for biota analysis and then transitioned primary analysis to Eurofins, maintaining NMI as secondary laboratory. In February 2018 Eurofins became NATA certified for PFAS analysis in some biota media (including fish flesh and fruit). Coffey transitioned to ALS as secondary laboratory in March 2018, who also became NATA certified for PFAS analysis in biota in 2018.

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

7.1.2. Sample handling

ITEM QUESTION YES NO (Comment below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching the laboratory?

3 Were the samples properly and adequately preserved? This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Page 84: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

7.2. Field QA/QC 7.2.1. Type of QA/QC Samples Collected

Primary Samples 89 Vegetation (64 in November, 25 in December)

Days of sampling 14

Field Duplicates (at least 1 in 10 samples) November: 7 (4 Primary lab replicates, 3 secondary lab replicates) December: 1 primary lab replicate

Trip Blanks (at least 1 per sampling event) November: 0 December: 1

Equipment Rinsate (at least 1/day/matrix/equipment)

No reusable equipment

7.2.2. Samples Analysed Duplicate sampling of biota samples was conducted by dividing vegetation samples.

Field Duplicates

ITEM QUESTION YES NO (Comment below)

1 Were an Adequate Number of field duplicates analysed for each chemical?

2 Were RPDs within Control Limits? < 30% for concentrations

Comments

Field duplicate sample analysis was below the target of 1 in 10 primary samples.

There were no RPDs outside the acceptable range. The results are presented in ESDAT export table following Section 1.5.

In the November round, there were 112 duplicate pair analyses for PFAS compounds and 100% were reported within the acceptance target of less than 30 % RPD. There were 39 triplicate pair analyses for PFAS compounds and 100% were reported within the acceptance target of less than 30 % RPD.

In the December round there were 28 duplicate pair analyses for PFAS compounds and 100% were reported within the acceptance target of less than 30% RPD. Limited duplicate and triplicate analyses were undertaken during the December round of sampling due to nature of the samples collected (typically leaves) limiting the potential for segregation of samples for replicate analyses.

Page 85: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Rinsate Blanks

ITEM QUESTION YES NO (Comment below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants? (If no, comment whether the contaminants present are also detected in the samples and whether they are common laboratory chemicals.)

Not Applicable

Comments

Rinsate samples only collected for one day of sampling during the December round of sampling as this was the only day where reusable sampling equipment was utilised. For all other sampling, rinsate samples were not collected during vegetation sampling, as no reuseable equipment was used. As a result of the methodology employed, there was considered to be a very low chance of cross contamination.

7.2.3. Trip Blanks

ITEM QUESTION YES NO (Comment below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants? (If no, comment whether the contaminants present are also detected in the samples and whether they are common laboratory chemicals.)

Comments

Trip blanks were not collected on each day of sampling specific to vegetation sampling, however trip blanks were included in other sample transport occurring at the same period (aquatic biota), which indicated a very low potential for cross-contamination. Trip blanks did not contain PFAS compounds above reporting limits.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

7.3. Laboratory QA/QC ITEM QUESTION YES NO (Comment

below)

Page 86: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

7.3.1. Laboratory Blanks. All 140 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

7.3.2. Laboratory Duplicates A total of 252 internal laboratory duplicates were analysed by Eurofins and all were within acceptable limits (<30% RPD).

7.3.3. Laboratory Control Samples A total of 140 laboratory control sample analyses were performed by Eurofins and none were outside of the target range (50-150%).

7.3.4. Matrix Spikes A total of 224 matrix spike analyses were performed by Eurofins and of these 5 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted, but all were within 50-150%. Whilst these results were outside of the adopted screening criteria for surface waters, all but 1 spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable.

7.3.5. Surrogate recoveries The collated laboratory data for surrogate recoveries reported 634 surrogates (out of a total of 1,794 surrogate analyses undertaken) outside of the recovery range of 50-150%. A total of 545 surrogate recoveries were below the lower limit or recorded as matrix interference. Approximately half of these discrepancies were for precursor compounds. Only 38 results outside of the 50-150% range were for the PFAS compounds of concern (PFOS, PFOA & PFHxS) and all of these were reported less than 50%, which would lead the quantification following adjustment to a low recovery, to be an overestimate.

A summary of the internal laboratory quality control results is provided in table 30.

Table 1: Summary of internal laboratory QC results

QC test Total Analyses

Number outside of Acceptable Criteria

% of analyses acceptable

Method Blanks 140 0 100

Laboratory Duplicates 252 0 100

Laboratory Control Samples 140 0 100

Matrix Spikes 224 5 98

Page 87: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Surrogates 1794 634 65

Surrogates (target PFAS compounds) 249 38 85

Overall completeness of internal laboratory QC was greater than 95%, with the exception of surrogate recoveries. Many surrogate recoveries were identified out of the 50-150% acceptance range, but typically for precursor compounds, which were not typically reported above reporting limits in samples, and were not used quantitatively. Recoveries were more frequently out of range in the December batch of sample results, which contained less vegetation relevant to human health risk assessment. All surrogate recoveries out side of the target range for PFOA, PFOA and PFHxS were reported low, and are most likely to lead to an over estimate of sample concentrations.

Internal laboratory QC indicates acceptable laboratory data quality.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

7.4. Summary of Vegetation Biota Sampling (November 2017 to December 2017) Data Quality Review

In general, the data quality of the Biota sampling undertaken between November 2017 and December 2017 was considered to be acceptable. Surrogate recovery discrepancies were noted, specifically for precursor compounds which have not been used quantitatively. The QC results were considered to indicate acceptable data quality and allow data to be relied on to support the outcome of the assessment.

Page 88: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix J - Data ValidationRAAF Base Darwin - PFAS Investigation

Vegetation Results - November to December 2017

Department of Defence

Field Duplicates (SOIL) Lab Report Number 576224 576224 576229 576229 576231 576231 576231 576231Field ID 1302_VG137_171122 1302_VG137_171122 RPD 1302_VG143_171122 1302_VG144_171122 RPD 1302_VG154_171123 1302_VG155_171123 RPD 1302_VG148_171123-A 1302_VG148_171123-B RPDSampled Date/Time 22-11-17 22-11-17 22-11-17 22-11-17

Primary Sample Duplicate Primary Sample Duplicate Primary Sample Duplicate Primary Sample DuplicateChem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 0.3 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 0.5 (Interlab) <0.3 <0.3 0 <0.3 <0.3 0 <0.3 <0.3 0 <0.3 <0.3 0 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 <0.3 <0.3 0 <0.3 <0.3 0 <0.3 <0.3 0 <0.3 <0.3 0 PFHxS + PFOS µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Sum of PFASs (n=28) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 Sum of WA DER PFAS (n=10) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','5786

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','578694')

Page 89: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix J - Data ValidationRAAF Base Darwin - PFAS Investigation

Vegetation Results - November to December 2017

Department of Defence

Field Duplicates (SOIL) Lab Report NumberField IDSampled Date/Time

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5

Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 0.3 (Interlab)Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 0.5 (Interlab)Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 PFHxS + PFOS µg/kg 0.5 Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 0.5 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 0.5 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 0.5 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 0.5 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 0.5 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 Sum of PFASs (n=28) µg/kg 0.5 Sum of WA DER PFAS (n=10) µg/kg 0.5

*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 2***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','5786575791 RN1183257 576224 RN1183257 576229 RN1183257

1302_VG113_171116 1302_VG113_171116 RPD 1302_VG138_171122 1302_VG138_171122 RPD 1302_VG145_171122 1302_VG145_171122 RPD16-11-17 16-11-17 22-11-17 22-11-17 22-11-17 22-11-17

Primary Sample Triplicate Primary Sample Triplicate Primary Sample Triplicate

<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.3 0 <0.5 <0.3 0 <0.5 <0.3 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0

<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.3 <0.5 0 <0.3 <0.5 0 <0.3 <0.5 0

2.2 2.9 27 <0.3 <0.3 0 <0.3 <0.3 0

<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0<0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','578694')

Page 90: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix J - Data ValidationRAAF Base Darwin - PFAS Investigation

Vegetation Results - November to December 2017

Department of Defence

Field Duplicates (SOIL) Lab Report Number 578694 578694Field ID 1302_VG188_171210-A 1302_VG188_171210-A RPDSampled Date/Time 10-12-17 10-12-17

Primary Sample DuplicateChem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5 <0.5 <0.5 0

Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 0.3 (Interlab) <0.5 <0.5 0Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 <0.5 <0.5 0Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 0.5 (Interlab) <0.3 <0.3 0Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 <0.3 <0.3 0PFHxS + PFOS µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 <0.5 <0.5 0Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 <0.5 <0.5 0Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 <0.5 <0.5 0N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 0.5 <0.5 <0.5 0N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 0.5 <0.5 <0.5 02-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 <0.5 <0.5 02-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 <0.5 <0.5 0N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 <0.5 <0.5 0N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 <0.5 <0.5 01H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 0.5 <0.5 <0.5 01H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 0.5 <0.5 <0.5 01H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 0.5 <0.5 <0.5 01H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 <0.5 <0.5 0Sum of PFASs (n=28) µg/kg 0.5 <0.5 <0.5 0Sum of WA DER PFAS (n=10) µg/kg 0.5 <0.5 <0.5 0

*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','5786

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','578694')

Page 91: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix J - Data ValidationRAAF Base Darwin - PFAS Investigation

Vegetation Results - November to December 2017

Department of Defence

Field Blanks (WATER) Lab Report Number 576545Field ID 1302_RQC1_171205Sampled_Date/Time 05-12-17Sample Type Trip_B

Chem_Group ChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 PFHxS + PFOS µg/L 0.01 <0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','578

Filter: Lab_Report_Number in('575791','576224','576229','576231','576545','578694')

Page 92: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

9. BIOTA SAMPLING (March-May 2018) The Biota sampled during this period included fruits, plants, fish and crustaceans.

9.1. QA/QC General 9.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted consistent with NEPM principles?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

At the start of the investigation Australian analytical labs were not NATA certified for PFAS analysis in biota. Coffey initially used National Measurement Institute for biota analysis and then transitioned primary analysis to Eurofins, maintaining NMI as secondary laboratory. In February 2018 Eurofins became NATA certified for PFAS analysis in some biota media (including fish flesh and fruit). Coffey transitioned to ALS as secondary laboratory in March 2018, who also became NATA certified for PFAS analysis in biota in 2018.

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

9.1.2. Sample handling

ITEM QUESTION YES NO (Comment below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching the laboratory?

3 Were the samples properly and adequately preserved? This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Page 93: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

9.2. Field QA/QC 9.2.1. Type of QA/QC Samples Collected

Primary Samples 138 fish, 3 vegetation

Days of sampling 12 (2 days of sample preparation)

Field Duplicates (at least 1 in 10 samples) 13 samples

Trip Blanks (at least 1 per sampling event) 0

Equipment Rinsate (at least 1/day/matrix/equipment)

2 (related to fish preparation)

9.2.2. Samples Analysed Duplicate sampling of biota samples was conducted by collecting flesh samples from left and right fillets of fish or splitting large samples (crabs). Rinsate samples were collected for analysis from dissection equipment used to fillet fish. No other re-usable sampling equipment was used that could have resulted in cross-contamination of other biota samples.

Field Duplicates

ITEM QUESTION YES NO (Comment below)

1 Were an Adequate Number of field duplicates analysed for each chemical?

2 Were RPDs within Control Limits? < 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 17 and ESDAT export table following Section 1.5.

There were 140 duplicate pair analyses for PFAS compounds and 100% were reported within the acceptance target of less than 30 % RPD. There were 224 triplicate pair analyses for PFAS compounds and 98 % were reported within the acceptance target of less than 30 % RPD.

Page 94: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 17. RPDs outside Acceptable Range

Primary sample Duplicate

sample

Lab Analyte RPD %

Higher than

Primary (Y/N)

1302_FH310_180315 (Mudcrab - flesh-left)

Interlab ALS Perfluoro-n-octane sulfonic acid (PFOS) 62 N

1302_FH312_180315 (Mudcrab - organs-left)

Interlab ALS Perfluoro-n-octane sulfonic acid (PFOS) 53 N

1302_FH332_180315 (Barramundi – fillet-left)

Interlab ALS Perfluoro-n-octane sulfonic acid (PFOS) 152 N

1302_FH345_180315 (Forktail Catfish – fillet-left)

Interlab ALS Perfluoro-n-octane sulfonic acid (PFOS) 169 N

Although elevated RPDs were reported, the concentrations were typically in the same range as other results for similar samples in the batch and adoption of either result would not affect the interpretation. The exceptions were 1302_FH332_180315 and 1302_FH345_180315, which were homogenised duplicate samples of samples of the same name analysed by the primary lab. The concentrations reported by the primary laboratory were approximately an order of magnitude higher than the results reported by the secondary lab. In both cases intra-laboratory duplicates were also run from the same fish, and obtained results consistent with the primary laboratory result for the primary sample. Therefore, for those samples, the secondary laboratory result is considered to be anomalous.

Other RPDs are likely to reflect the variability in concentration within the media. This highlights the need for sufficient results to develop statistical exposure concentrations where exposure is interpreted likely to be high. Despite the discrepancies observed, the results from the March/April 2018 aquatic biota sampling were considered acceptable and able to be relied on for the report, when interpreted statistically. We also note that these results are being considered in combination with other aquatic biota sampling events.

Rinsate Blanks

ITEM QUESTION YES NO (Comment below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants? (If no, comment whether the contaminants present are also detected in the samples and whether they are common laboratory chemicals.)

Not Applicable

Comments

Rinsate samples were collected from dissection equipment used to prepare fish samples. None of the rinsate samples contained PFAS compounds above the laboratory reporting limits. As a result, there was considered to be a very low chance of cross contamination.

Page 95: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

9.2.3. Trip Blanks

ITEM QUESTION YES NO (Comment below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants? (If no, comment whether the contaminants present are also detected in the samples and whether they are common laboratory chemicals.)

Comments

Although specific trip blanks were not transported with the samples, concentrations for all analytes were below the laboratory LOR for all rinsates and indicated that cross contamination was unlikely to have occurred during sample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of this investigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

9.3. Laboratory QA/QC ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

9.3.1. Laboratory Blanks. All 28 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

9.3.2. Laboratory Duplicates A total of 420 internal laboratory duplicates were analysed by Eurofins and all were within acceptable limits (<30% RPD).

9.3.3. Laboratory Control Samples A total of 28 laboratory control sample analyses were performed by Eurofins and none were outside of the target range (>50%).

Page 96: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

9.3.4. Matrix Spikes A total of 392 matrix spike analyses were performed by Eurofins and of these 12 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted, but all were within 50-150%. indicating the matrix spike results for PFAS compounds was acceptable.

9.3.5. Surrogate recoveries The collated laboratory data for surrogate recoveries reported 423 surrogates (out of a total of 3,698 surrogate analyses undertaken) below the lower recovery limit of 50%. A total of 213 surrogate recoveries were above the adopted upper recovery limit of 150% for PFAS compounds (ranging up to 199%). These discrepancies were predominantly for precursor compounds. Only 10 results outside of the 50-150% range were for the PFAS compounds of concern (PFOS, PFOA & PFHxS) and all of these were reported less than 50%, which would lead the quantification following adjustment to a low recovery, to be an overestimate.

A summary of the internal laboratory quality control results is provided in Table 18.

Table 18: Summary of internal laboratory QC results

QC test Total Analyses

Number outside of Acceptable Criteria

% of analyses acceptable

Method Blanks 56 0 100

Laboratory Duplicates 448 0 100

Laboratory Control Samples 56 0 100

Matrix Spikes 420 14 95

Surrogates 3,745 656 82

Overall completeness of internal laboratory QC was less than 95%. Many surrogate recoveries were identified out of the 50-150% acceptance range, but typically for precursor compounds, which were not typically reported above reporting limits in samples, and were not used quantitatively. Only 2 surrogate recoveries for target PFAS compounds (PFOS, PFOA or PFHxS) were outside of the 50-150% range.

Internal laboratory QC indicates acceptable laboratory data quality.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

9.4. Summary of Biota Sampling (March/May 2018) Data Quality Review

In general, the data quality of the Biota sampling undertaken between March and April 2018 was considered to be acceptable. Surrogate recovery discrepancies were noted, specifically for precursor compounds which have not been used quantitatively. The QC results were considered to indicate acceptable data quality and allow data to be relied on to support the outcome of the assessment.

Page 97: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix JMarch April 2018 Fish Results

Field Duplicates

Lab Report Number 594269 594269 594269 594269 594269 594269 594269 594269 594269 594269 594269Field ID 1302_FH332_180315 1302_FH333_180315 RPD 1302_FH360_180322 1302_FH361_180322 RPD 1302_FH374_180313 1302_FH375_180313 RPD 1302_FH406_180403 1302_FH407_180403 RPD 1302_FH435_180327 1302_FH436_180327 RPD 1302_FH297_180405Sampled Date/Time 15/03/2018 15/03/2018 22/03/2018 22/03/2018 13/03/2018 13/03/2018 3/04/2018 3/04/2018 27/03/2018 27/03/2018 5/04/2018

Primary Sample Duplicate Sample Primary Sample Duplicate Sample Primary Sample Duplicate Sample Primary Sample Duplicate Sample Primary Sample Duplicate Sample Primary SampleChem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5 (Primary): 5 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 1 (Interlab 0.5 0.5 0 <0.3 <0.3 0 <0.3 <0.3 0 <0.3 <0.3 0 <0.3 <0.3 0 <0.3 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 (Primary): 1 (Interlab 22.0 26.0 17 1.6 1.6 0 17.0 18.0 6 1.5 1.6 6 <0.3 0.3 0 <0.3 PFHxS + PFOS µg/kg 0.5 22.5 26.5 16 1.6 1.6 0 17.0 18.0 6 1.5 1.6 6 <0.5 <0.5 0 Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 (Primary): 5 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 N-Methylperfluoro-1-octane sulfonamide (N-MeF µg/kg 0.5 (Primary): 5 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSµg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 2-(N-Methylperfluoro-1-octane sulfonamide)-ethaµg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethan µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 N-Methyl perfluorooctane sulfonamidoacetic acidµg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 (Primary): 1 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 Fµg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 Fµg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 Sum of PFASs (n=28) µg/kg 0.5 (Primary): 1 (Interlab 22.5 26.5 16 1.6 1.6 0 17.0 18.0 6 1.5 1.6 6 <0.5 <0.5 0 <0.5 Sum of WA DER PFAS (n=10) µg/kg 0.5 22.5 26.5 16 1.6 1.6 0 17.0 18.0 6 1.5 1.6 6 <0.5 <0.5 0*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

PFAS Investigation RAAF Base Darwin - HHRA

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J104

Page 98: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix JMarch April 2018 Fish Results

Field Duplicates

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5 (Primary): 5 (Interlab Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 (Primary): 2 (Interlab Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 1 (Interlab Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 (Primary): 1 (Interlab PFHxS + PFOS µg/kg 0.5 Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 (Primary): 1 (Interlab Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 (Primary): 5 (Interlab N-Methylperfluoro-1-octane sulfonamide (N-MeF µg/kg 0.5 (Primary): 5 (Interlab N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSµg/kg 0.5 (Primary): 2 (Interlab 2-(N-Methylperfluoro-1-octane sulfonamide)-ethaµg/kg 0.5 (Primary): 2 (Interlab 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethan µg/kg 0.5 (Primary): 2 (Interlab N-Methyl perfluorooctane sulfonamidoacetic acidµg/kg 0.5 (Primary): 1 (Interlab N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 (Primary): 1 (Interlab 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 µg/kg 0.5 (Primary): 2 (Interlab 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 Fµg/kg 0.5 (Primary): 2 (Interlab 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 Fµg/kg 0.5 (Primary): 2 (Interlab 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab Sum of PFASs (n=28) µg/kg 0.5 (Primary): 1 (Interlab Sum of WA DER PFAS (n=10) µg/kg 0.5 *RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL)***Interlab Duplicates are matched on a per compound basis as methods vary between labora

ES1811491 594269 ES1811491 594269 ES1811491 594269 ES1811491 594269 ES1811491 594269 ES18114911302_FH298_180405 RPD 1302_FH303_180405 1302_FH303_180405 RPD 1302_FH310_180315 1302_FH311_180315 RPD 1302_FH312_180315 1302_FH313_180315 RPD 1302_FH332_180315 1302_FH332_180315 RPD 1302_FH345_180315 1302_FH346_180315

5/04/2018 5/04/2018 5/04/2018 15/03/2018 15/03/2018 15/03/2018 15/03/2018 15/03/2018 15/03/2018 15/03/2018 15/03/2018Triplicate Sample Primary Sample Triplicate Sample Primary Sample Triplicate Sample Primary Sample Triplicate Sample Primary Sample Triplicate Sample Primary Sample Triplicate Sample

<5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 0.9 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 0.7 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 1.0 <5.0 0 <0.5 <2.0 0 0.5 <2.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.3 <1.0 0 0.5 <1.0 0 2.5 <2.0 22 0.5 <1.0 0 1.3 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.3 <1.0 0 7.6 4.0 62 31.0 18.0 53 22.0 3.0 152 24.0 2.0

22.5<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0<5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0 0 <0.5 <5.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <5.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <5.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <5.0 0 <0.5 <2.0 0 <0.5 <2.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<1.0 0 <0.5 <1.0 0 <0.5 <1.0 0 <0.5 <2.0 0 <0.5 <1.0 0 <0.5 <1.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0 0 <0.5 <2.0<1.0 0 <0.5 <1.0 0 8.1 4.0 68 36.1 18.0 67 22.5 3.0 153 25.8 2.0

22.5

PFAS Investigation RAAF Base Darwin - HHRA

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J105

Page 99: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix JMarch April 2018 Fish Results

Field Duplicates

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5 (Primary): 5 (Interlab Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 (Primary): 2 (Interlab Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 1 (Interlab Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 (Primary): 1 (Interlab Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 (Primary): 1 (Interlab PFHxS + PFOS µg/kg 0.5 Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 (Primary): 2 (Interlab Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 (Primary): 1 (Interlab Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 (Primary): 5 (Interlab N-Methylperfluoro-1-octane sulfonamide (N-MeF µg/kg 0.5 (Primary): 5 (Interlab N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSµg/kg 0.5 (Primary): 2 (Interlab 2-(N-Methylperfluoro-1-octane sulfonamide)-ethaµg/kg 0.5 (Primary): 2 (Interlab 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethan µg/kg 0.5 (Primary): 2 (Interlab N-Methyl perfluorooctane sulfonamidoacetic acidµg/kg 0.5 (Primary): 1 (Interlab N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 (Primary): 1 (Interlab 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 µg/kg 0.5 (Primary): 2 (Interlab 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 Fµg/kg 0.5 (Primary): 2 (Interlab 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 Fµg/kg 0.5 (Primary): 2 (Interlab 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab Sum of PFASs (n=28) µg/kg 0.5 (Primary): 1 (Interlab Sum of WA DER PFAS (n=10) µg/kg 0.5 *RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL)***Interlab Duplicates are matched on a per compound basis as methods vary between labora

594269 ES1811491 594269 ES1811491RPD 1302_FH388_180403 1302_FH389_180403 RPD 1302_FH420_180404 1302_FH421_180404 RPD

3/04/2018 3/04/2018 4/04/2018 4/04/2018Primary Sample Triplicate Sample Primary Sample Triplicate Sample

0 <0.5 <5.0 0 <0.5 <5.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <1.0 0 <0.5 <1.0 0

26 <0.3 <1.0 0 <0.3 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 0

169 0.8 <1.0 0 0.7 <1.0 0

0 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <5.0 0 <0.5 <5.0 00 <0.5 <5.0 0 <0.5 <5.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <1.0 0 <0.5 <1.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 00 <0.5 <2.0 0 <0.5 <2.0 0

171 0.8 <1.0 0 0.7 <1.0 0

PFAS Investigation RAAF Base Darwin - HHRA

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J106

Page 100: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Appendix JMarch April 2018 Fish Results

Rinsates

PFAS Investigation RAAF Base Darwin - HHRA

Lab Report Number 594418 594418Field ID 1302_QCFH100_180410 1302_QCFH101_180411Sampled Date/Time 10/04/2018 11/04/2018

Rinsate off Filleting knife Rinsate off Filleting knifeChem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.5 <0.5 <0.5 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-octanoate acid (PFOA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-decanoic acid (PFDA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.5 <0.5 <0.5 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.5 <0.5 <0.5 Perfluorobutane sulfonic acid (PFBS) µg/L 0.5 <0.5 <0.5 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.3 0.5 0.5 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.5 <0.5 <0.5 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.3 22.0 26.0 PFHxS + PFOS µg/L 0.5 22.5 26.5 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.5 <0.5 <0.5 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.5 <0.5 <0.5 Perfluorooctane sulfonamide (PFOSA) µg/L 0.5 <0.5 <0.5 N-Methylperfluoro-1-octane sulfonamide (N-MeFµg/L 0.5 <0.5 <0.5 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSµg/L 0.5 <0.5 <0.5 2-(N-Methylperfluoro-1-octane sulfonamide)-ethaµg/L 0.5 <0.5 <0.5 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethan µg/L 0.5 <0.5 <0.5 N-Methyl perfluorooctane sulfonamidoacetic acidµg/L 0.5 <0.5 <0.5 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.5 <0.5 <0.5 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 µg/L 0.5 <0.5 <0.5 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 Fµg/L 0.5 <0.5 <0.5 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 µg/L 0.5 <0.5 <0.5 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.5 <0.5 <0.5 Sum of PFASs (n=28) µg/L 0.5 22.5 26.5 Sum of WA DER PFAS (n=10) µg/L 0.5 22.5 26.5

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J107

Page 101: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1. BIOTA SAMPLING – Terrestrial Invertebrates(December 2017)

The Terrestrial Invertebrates sampled during this period included beetles, cicadas, cockroaches,moths, flies, dragonfly, ants, caterpillars, spiders, worms, praying mantis, crickets.

1.1. QA/QC General

1.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted consistent with

NEPM principles?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

At the start of the investigation Australian analytical labs were not NATA certified for PFAS analysis inbiota. Coffey initially used National Measurement Institute for biota analysis and then transitionedprimary analysis to Eurofins, maintaining NMI as secondary laboratory. In February 2018 Eurofinsbecame NATA certified for PFAS analysis in some biota media (including fish flesh and fruit). Coffeytransitioned to ALS as secondary laboratory in March 2018, who also became NATA certified forPFAS analysis in biota in 2018.

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

1.1.2. Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J108

Page 102: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.2. Field QA/QC

1.2.1. Type of QA/QC Samples Collected

Primary Samples 30 composite terrestrial invertebrate samples

Days of sampling 3 days

Field Duplicates (at least 1 in 10 samples)2 spilt samples created and submitted to NMI for

secondary laboratory analysis

Trip Blanks (at least 1 per sampling event) 0

Equipment Rinsate (at least

1/day/matrix/equipment)

No equipment rinsates as no re-usable equipment. Two

samples of the ethylene glycol solution used to preserve

the samples were collected for analysis. This included

one sample of unstrained coolant and one sample of

strained coolant. The ethylene glycol samples collected

and analysed were samples of preservative that were

used in a pit fall trap. This included one sample of

ethylene glycol directly from the pit (unstrained) and

another sample after it had been strained.

1.2.2. Samples Analysed

Composite terrestrial invertebrate samples were created by combining collected invertebrates ofvarious species. Prior to submission to the laboratory the composite samples were rinsed with PFASfree deionised water. At the laboratory the composite samples were homogenised prior to analysis.

Two split samples were created at the primary laboratory and submitted to the secondary laboratoryfor analysis.

No re-usable equipment was used in the field, as such no equipment rinsate samples were collected.Two samples of the ethylene glycol preservative used for the terrestrial invertebrate sampling weresubmitted for analysis as described in the table above.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J109

Page 103: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

The number of split samples (field duplicates) (2) was less than 1 in 10 primary samples. This wasdue to difficulties in obtaining representative split composite samples of the terrestrial invertebrates.Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methodsand laboratory results were investigated.

There were two duplicate pair analyses for PFOS and PFOA. Concentrations in the duplicate pairswere within the acceptance target of 30% RPD, with the exception of one pair for PFOS as shown inthe table below.

Table 1. RPDs outside Acceptable Range

Primary sample Duplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_IV129_171209

(composite terrestrial

invertebrate)

Interlab –

Split

NMI Perfluoro-n-octane sulfonic acid (PFOS) 50 Y

The RPD discrepancy observed was attributed to the split sample not being a true duplicate. Althoughan elevated RPD was reported, the concentration in the split sample was in the same range as theprimary sample and adoption of either result would not affect the interpretation. Therefore, the RPDsare likely to reflect the variability in concentration within the media. This highlights the need forsufficient results to develop statistical exposure concentrations where exposure is interpreted likely tobe high. Despite the discrepancy observed, the results from the December 2017 terrestrialinvertebrate sampling was considered acceptable and able to be relied on for the report, wheninterpreted statistically.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J110

Page 104: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Not Applicable

Comments

No rinsate samples were collected as no re-usable equipment was used. However, two samples ofthe ethylene glycol solution used to preserve the invertebrate samples were collected. This includedtwo samples of ethylene glycol that had come in contact with the invertebrates during the fieldsampling program. This was undertaken to evaluate whether the coolant was likely to be extractingPFAS compounds from the invertebrates. Coffey submitted a sample of ‘fresh’ ethylene glycolsolution, that had not come in contact with invertebrate samples, to the laboratory prior to conductingthe field sampling to determine if it contained any PFAS compounds or other components which mayinterfere with the PFAS analysis. The laboratory advised that no PFAS compounds were present inthe ethylene glycol solution.

Both the strained and unstrained ethylene glycol samples were reported to contain concentrations ofPFTrDA (0.05 to 0.12 µg/L) and 6:2 FTS (0.28 to 0.35 µg/L). It is noted that these PFAS compoundswere detected in some of the terrestrial invertebrate samples analysed. It is considered possible thatthe ethylene glycol solution removed traces of the PFTrDA and 6:2 FTS from the invertebrate samplesthat it came in contact with.

It is noted that PFOS and PFOA, the two PFAS compounds specifically evaluated in the ERA, werenot reported at detectable concentrations in the ethylene glycol used, as such the integrity of thePFOS and PFOA terrestrial invertebrate data does not appear to be compromised.

1.2.3. Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Specific trip blanks were not transported with the samples as due to the nature of the PFAScompounds (i.e. non-volatile) it was considered that cross contamination was unlikely to occur duringsample storage and transport.

In summary, the field QC results are considered generally acceptable for the purposes of thisinvestigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J111

Page 105: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.3. Laboratory QA/QC

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

1.3.1. Laboratory Blanks.

All laboratory method blank results reported concentrations of contaminants below the laboratoryreporting limits.

1.3.2. Laboratory Duplicates

All internal laboratory duplicates analysed by Eurofins and NMI were within acceptable limits (<30%RPD).

1.3.3. Laboratory Control Samples

None of the laboratory control sample analyses were performed by Eurofins and none were outside ofthe target range (>50%).

1.3.4. Matrix Spikes

Matrix spike analyses were performed by Eurofins and NMI. A total of 12 Matrix spikes were outsideof the adopted 70% – 130% acceptability criteria adopted, but all were within 50-150%. indicating thematrix spike results for PFAS compounds was acceptable.

1.3.5. Surrogate recoveries

The laboratories reported surrogate recoveries for all PFAS compounds. For the purpose of this reportwe evaluated the surrogate recoveries for PFOS and PFOA, the two risk-driving PFAS compoundsevaluated in the ERA. Only two surrogates for PFOA and one surrogate for PFOS were outside of theacceptable range of 50 – 150 %. This represents a small proportion of the total number of surrogatesdetermined. The discrepancies were related to surrogate analysis being below the recovery limit of50%, this which would lead the quantification following adjustment to a low recovery, to be anoverestimate.

A summary of the internal laboratory quality control results is provided in the table below.

Overall completeness of internal laboratory QC was less than 95%. Many surrogate recoveries wereidentified out of the 50-150% acceptance range, but typically for precursor compounds, which werenot typically reported above reporting limits in samples, and were not used quantitatively.

Internal laboratory QC indicates acceptable laboratory data quality.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J112

Page 106: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.4. Summary of Terrestrial Invertebrate Sampling(December 2017) Data Quality Review

In general, the data quality of the terrestrial invertebrate sampling undertaken in December 2018 wasconsidered to be acceptable. Concentrations of 6:2 FTS and PFTrDA is samples of the ethyleneglycol preservative that had come in contact in invertebrate samples, however PFOS and PFOA werenot detected, hence this results for the compounds relied on for the ERA are not considered to becompromised. A small proportion of surrogate recovery discrepancies were noted for PFOS andPFOA. The QC results were considered to indicate acceptable data quality and allow data to be reliedon to support the outcome of the assessment.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J113

Page 107: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin ERA

Terrestrial Invertebrates Quality Control RPD Summary Table

Department of Defence

Field Duplicates (SOIL) Lab Report Number 578763 578763Field ID 1302_IV118_171209 0990_IV118_171209 RPD 1302_IV129_171209 0990_IV129_171209 RPDSampled Date/Time 09-12-17 09-12-17 09-12-17 09-12-17

Chem_Group ChemName Units EQL

PFAS Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 0.3 (Interlab) <0.5 <0.3 0 <0.5 <0.3 0Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 0.6 0.75 22 0.6 1.0 501H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 0.5 1.2 <0.5 82 <0.5 <0.5 01H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 0.5 <0.5 <0.5 0 <0.5 <0.5 0

*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('578675','578763')

754-MELEN199421 1 of 1

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J114

Page 108: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin ERA

Terrestrial Invertebrates Field Blank Summary Table

Department of Defence

WATER Lab Report Number 578675 578675Field ID 1302_QC1IV_171210 1302_QC2IV_171210Sampled Date 10-12-17 10-12-17Sample Type Rinsate Rinsate

Chem Group ChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <2 <2Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <2 <2Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <2 <2Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <2 <2Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <2 <2Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <2 <2Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <2 <2Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <2 <2Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <2 <2Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 0.05 0.12Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <2 <2Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <2 <2Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <2 <2Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <2 <2Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <2 <2Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <2 <2PFHxS + PFOS µg/L 0.01 <0.01 <0.01Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <2 <2Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <2 <2N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <2 <2N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <2 <22-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <2 <22-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <2 <2N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <2 <2N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <2 <21H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <2 <21H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 0.28 0.351H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <2 <21H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <2 <2Sum of PFASs (n=28) µg/L 0.1 0.33 0.47Sum of WA DER PFAS (n=10) µg/L 0.05 0.28 0.35

754-MELEN199421 1 of 1

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J115

Page 109: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1. BIOTA SAMPLING – Terrestrial Vertebrates(March 2018)

The Terrestrial Vertebrates sampled during this period included:

• Small mammals

• Reptiles

• Amphibians

The samples submitted for analysis including whole organisms, composite samples and tissue / organsamples. Some serum samples were also collected.

1.1. QA/QC General

1.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted consistent with

NEPM principles?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

At the start of the investigation Australian analytical labs were not NATA certified for PFAS analysis inbiota. Coffey initially used National Measurement Institute for biota analysis and then transitionedprimary analysis to Eurofins, maintaining NMI as secondary laboratory. In February 2018 Eurofinsbecame NATA certified for PFAS analysis in some biota media (including fish flesh and fruit). Coffeytransitioned to ALS as secondary laboratory in March 2018, who also became NATA certified forPFAS analysis in biota in 2018.

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J116

Page 110: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.1.2. Sample handling

ITEM QUESTION YES NO (Comment

below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching

the laboratory?

3 Were the samples properly and adequately preserved?

This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.2. Field QA/QC

1.2.1. Type of QA/QC Samples Collected

Primary Samples 85 vertebrate samples

Days of sampling 2 day

Field Duplicates (at least 1 in 10 samples)

4 intra-lab duplicates of vertebrate sampled were

collected

1 inter-lab duplicate sample of skinks was collected and

submitted to ALS for secondary laboratory analysis

Trip Blanks (at least 1 per sampling event) 0

Equipment Rinsate (at least

1/day/matrix/equipment)

3 Rinsate samples for dissection equipment (i.e. knife,

scissors)

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J117

Page 111: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

1.2.2. Samples Analysed

Vertebrate samples analysed were either single whole body organisms, composite whole bodysamples, or specific tissue, organs or segments of organisms. Larger organisms were dissected priorto submission to the laboratory to create specific tissue, organ or segment samples for the organismscollected. Samples were homogenised by the laboratory prior to analysis.

Serum samples were collected from some terrestrial vertebrates captured, this were analysed by thelaboratory (Envirolab) as blood plasma samples.

Four quasi field intra-laboratory duplicate samples were collected and analysed including:

• 1302_TVC03_180322: Different sections of a Children’s Python collected from the same location

• 1302_TVC03_180322: Different sections of a Keelback snake collected from the same location

• 1302_TVC06_180322: Groups of similar skinks caught at the same location

• 1302_TV114_180322: Similar green-tree frogs caught at the same location.

One field inter-laboratory duplicate sample was collected and analysed including:

• 1302_TVC04_180322: Groups of similar skinks caught in the same area

No duplicate serum samples were able to be collected.

Rinsate samples were collected for analysis from dissection equipment used to dissect largervertebrate samples collected. No other re-usable sampling equipment was used that could haveresulted in cross-contamination of other biota samples.

Field Duplicates

ITEM QUESTION YES NO (Comment

below)

1 Were an Adequate Number of field duplicates analysed for each

chemical?

2 Were RPDs within Control Limits?

< 30% for concentrations

Comments

The number of intra and inter laboratory field duplicates was less than 1 in 10 primary samples. Thiswas due to difficulties in obtaining representative samples of similar organisms from the same locationto be consider quasi field duplicates. Where RPDs were outside the acceptable range, samplingprocedures, laboratory analytical methods and laboratory results were investigated

There were four intra-laboratory duplicate pair samples and one inter-laboratory duplicate pairsample. In relation to PFOS and PFOA the RPDs of the duplicate pairs were within the acceptancetarget of 30%, with the exception of three pairs for PFOS.

The RPD discrepancies observed were attributed to the duplicate samples being quasi duplicatesrather than true duplicate samples due to difficulties in obtaining similar vertebrate samples from thesame location. The concentrations in the duplicate samples were generally in a similar range to theprimary sample, therefore the RPDs are likely to reflect the variability in concentration within themedia. This highlights the need for sufficient results to develop statistical exposure concentrationswhere exposure is interpreted likely to be high. Despite the discrepancy observed, the results from theMarch 2018 terrestrial vertebrate sampling was considered acceptable and able to be relied on for thereport, when interpreted statistically.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J118

Page 112: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Table 1. RPDs outside Acceptable Range

Primary sample Duplicate

sample

Lab Analyte RPD

%

Higher

than

Primary

(Y/N)

1302_TVC05_180322 1302_TVC06_180322 Eurofins Perfluoro-n-octane sulfonic

acid (PFOS)

43 Y

1302_TVC05_180322 1302_TVC04_180322 ALS Perfluoro-n-octane sulfonic

acid (PFOS)

59 N

1302_TV113_180322 1302_TV114_180322 Eurofins Perfluoro-n-octane sulfonic

acid (PFOS)

133 N

Rinsate Blanks

ITEM QUESTION YES NO (Comment

below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Not Applicable

Comments

Three rinsate samples were collected from the equipment used for dissection / sample preparationprior to submission to the laboratory. Concentrations of PFAS compounds in all three rinsate sampleswere below the detectable limits. As such is it considered unlikely that any cross-contaminationoccurred.

1.2.3. Trip Blanks

ITEM QUESTION YES NO (Comment

below)

1 Was a trip blank collected on each day of sample?

2 Were the Trip Blanks free of contaminants?

(If no, comment whether the contaminants present are also detected

in the samples and whether they are common laboratory chemicals.)

Comments

Specific trip blanks were not transported with the samples as due to the nature of the PFAScompounds (i.e. non-volatile) it was considered that cross contamination was unlikely to occur duringsample storage and transport.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J119

Page 113: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

In summary, the field QC results are considered generally acceptable for the purposes of thisinvestigation.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.3. Laboratory QA/QC

ITEM QUESTION YES NO (Comment

below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

1.3.1. Laboratory Blanks.

All laboratory method blank results reported concentrations of contaminants below the laboratoryreporting limits.

1.3.2. Laboratory Duplicates

A ll internal laboratory duplicates were analysed were within acceptable limits (<30% RPD).

1.3.3. Laboratory Control Samples

None of the laboratory control sample analyses performed were outside of the target range (>50%).

1.3.4. Matrix Spikes

Matrix spike analyses were performed by the laboratories, with 20 matrix spikes being outside of theadopted 70% – 130% acceptability criteria adopted, but all were within 50-150%. indicating the matrixspike results for PFAS compounds was acceptable.

1.3.5. Surrogate recoveries

The laboratories reported surrogate recoveries for all PFAS compounds. For the purpose of this reportwe evaluated the surrogate recoveries for PFOS and PFOA, the two risk-driving PFAS compoundsevaluated in the ERA. A total of 31 surrogates for PFOA and one surrogate for PFOS were outside ofthe acceptable range of 50 – 150 %. This represents a small proportion of the total number ofsurrogates determined. The discrepancies were predominately related to surrogate analysis beingbelow the recovery limit of 50%, this which would lead the quantification following adjustment to a lowrecovery, to be an overestimate.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J120

Page 114: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

Overall completeness of internal laboratory QC was less than 95%. Many surrogate recoveries wereidentified out of the 50-150% acceptance range, but typically for precursor compounds, which werenot typically reported above reporting limits in samples, and were not used quantitatively.

Internal laboratory QC indicates acceptable laboratory data quality.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.4. Summary of Terrestrial Vertebrate Sampling (March2018) Data Quality Review

In general, the data quality of the terrestrial invertebrate sampling undertaken in December 2018 wasconsidered to be acceptable. Surrogate recovery discrepancies were identified for PFOS and PFOA,these represented a small proportion of the total number of surrogates determined, in particular forPFOS, the main risk driving PFAS evaluated in the ERA. The QC results were considered to indicateacceptable data quality and allow data to be relied on to support the outcome of the assessment.

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J121

Page 115: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base Darwin

ERA

Terrestrial Vertebrates

Quality Control RPD Summary Table

Department of Defence

Lab Report Number 592567 592567 592567 592567 592567 592567 594583 594583 592567 ES1810306

Field ID 1302_TV026_180322 1302_TVC03_180322 RPD 1302_TVC05_180322 1302_TVC06_180322 RPD 1302_TV045_180322 1302_TVC08_180322 RPD 1302_TV113_180409 1302_TV114_180409 RPD 1302_TVC05_180322 1302_TVC04_180322 RPDSample Date 23-03-18 23-03-18 23-03-18 23-03-18 23-03-18 23-03-18 09-04-18 09-04-18 23-03-18 23-03-18

Chem Group ChemName Units LOR

PFAS Perfluorobutanoic acid (PFBA) µg/kg 0.5 (Primary): 5 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <5.0 0

Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

Perfluoro-n-hexanoic acid (PFHxA) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <1.0 0

Perfluoro-n-heptanoic acid (PFHpA) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <1.0 0

Perfluoro-n-octanoate acid (PFOA) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <1.0 0

Perfluoro-n-nonanoic acid (PFNA) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 3.6 3.5 3 <0.5 <0.5 0 <0.5 <1.0 0

Perfluoro-n-decanoic acid (PFDA) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 1.5 1.4 7 <0.5 <0.5 0 <0.5 <1.0 0

Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 1.5 1.3 14 <0.5 <0.5 0 <0.5 <1.0 0

Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 5.7 5.2 9 <0.5 <0.5 0 <0.5 <2.0 0

Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 2.2 2.1 5 <0.5 <0.5 0 <0.5 <2.0 0

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 10.0 9.5 5 <0.5 <0.5 0 <0.5 <2.0 0

Perfluorobutane sulfonic acid (PFBS) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 0.6 <0.5 18 <0.5 <1.0 0

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 0.3 (Primary): 1 (Interlab) 3.4 2.6 27 0.8 1.6 67 54.0 42.0 25 14.0 2.9 131 0.8 1.0 22

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 13.0 12.0 8 4.2 1.0 123 <0.5 <1.0 0

Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 0.3 (Primary): 1 (Interlab) 37.0 41.0 10 22.0 34.0 43 2800.0 2500.0 11 260.0 52.0 133 22.0 12.0 59

Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 6.8 6.4 6 <0.5 <0.5 0 <0.5 <2.0 0

PFHxS + PFOS µg/kg 0.5 40.4 43.6 8 22.8 35.6 44 2854.0 2542.0 12 274.0 54.9 133 22.8

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 1.1 1.2 9 <0.5 <0.5 0 <0.5 <1.0 0

Perfluorooctane sulfonamide (PFOSA) µg/kg 0.5 (Primary): 5 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <5.0 0

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 0.5 (Primary): 5 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <5.0 0

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <1.0 0

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 0.5 (Primary): 1 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <1.0 0

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 0.5 (Primary): 2 (Interlab) <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2.0 0

Sum of PFASs (n=28) µg/kg 0.5 (Primary): 1 (Interlab) 40.4 43.6 8 22.8 35.6 44 2899.4 2584.6 11 278.8 55.9 133 22.8 13.0 55Sum of WA DER PFAS (n=10) µg/kg 0.5 40.4 43.6 8 22.8 35.6 44 2854.0 2542.0 12 274.6 54.9 133 22.8

*RPDs have only been considered where a concentration is greater than 0 times the EQL.

**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 25 (0-10 x EQL); 25 (10-20 x EQL); 10 ( > 20 x EQL) )

***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

754-MELEN199421 1 of 1

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J122

Page 116: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinERA

Terrestrial Vertabrates Field Blank Summary Table

Department of Defence

Field_ID 1302_QCTV001_180323 1302_QCTV002_180323 1302_QCTV003_180323

LocCode 1302_QCTV001 1302_QCTV002 1302_QCTV003

Sample Type Rinsate Rinsate Rinsate

Sample Date 23-Mar-18 23-Mar-18 23-Mar-18

Chem Group ChemName Units LOR

Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05

Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01

Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01

PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01

Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01

Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05

N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05

N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05

2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05

2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05

N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05

N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05

1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01

1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05

1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01

1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01

Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1

Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05

PFAS

754-MELEN199421 1 of 1

RAAF Base Darwin Supplementary DSI PFAS

Coffey 754-MELEN199421-R10

Appendix J - Page J123

Page 117: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

QA/QC DATA VALIDATION REPORT Job No: 754-MELEN199421

Coffey 754-MELEN199421 30 September 2017

1

1. SOIL (December 2017 to April 2018) 1.1. QA/QC General 1.1.1. Precision / Accuracy

ITEM QUESTION YES NO (Comment below)

1 Was a NATA registered laboratory used?

2 Did the laboratory perform the requested tests?

3 Were the laboratory methods adopted NATA endorsed?

4 Were the appropriate test procedures followed?

5 Were the reporting limits satisfactory?

6 Was the NATA Seal on the reports?

7 Were the reports signed by an authorised person?

Comments

Nil

Precision / Accuracy of the Laboratory Report

Satisfactory

Partially Satisfactory

Unsatisfactory

1.1.2. Sample handling

ITEM QUESTION YES NO (Comment below)

1 Were the sample holding times met?

2 Were the samples in proper custody between the field and reaching the laboratory?

3 Were the samples properly and adequately preserved? This includes keeping the samples chilled, where applicable.

4 Were the samples received by the laboratory in good condition?

Comments

Nil

Sample Handling was: Satisfactory

Partially Satisfactory

Page 118: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

QA/QC DATA VALIDATION REPORT Job No: 754-MELEN199421

Coffey 754-MELEN199421 30 September 2017

2

Unsatisfactory

1.2. Field QA/QC 1.2.1. Type of QA/QC Samples Collected

Primary Samples 109

Days of sampling 7

Field Duplicates (at least 1 in 20 samples) 6 intra lab + 5 inter lab

Trip Blanks (at least 1/day or sampling event) 3

Equipment Rinsate (at least 1/day/matrix/equipment) 3

1.2.2. Samples Analysed One hundred and nine primary samples were collected and sent to the primary laboratory Eurofins Environmental Consulting (MGT) over seven days of sampling. Six duplicate samples were collected and submitted for laboratory analysis to the primary laboratory Eurofins Environmental Consulting (MGT). Five triplicate samples were collected and submitted for laboratory analysis to the secondary laboratory Australian Laboratory Services (ALS).

1.2.3. Field Duplicates

ITEM QUESTION YES NO (Comment below)

1 Were an Adequate Number of field duplicates analysed for each chemical?

2 Were RPDs within Control Limits? < 30% for concentrations

Comments

Where RPDs were outside the acceptable range, sampling procedures, laboratory analytical methods and laboratory results were investigated. The results of this review are presented in Table 32.

There were 168 duplicate pair analyses for PFAS compounds and 100 % were reported within the acceptance target of less than 30 % RPD. There were 140 triplicate pair analyses for PFAS compounds and 99 % were reported within the acceptance target of less than 30 % RPD.

Table 1. RPDs outside Acceptable Range

Primary sample Duplicate/ Triplicate sample

Laboratory Analyte RPD % Higher than Primary sample

(Y/N)

1302_SP101.1_180322 Triplicate ALS Perfluoro-n-octane sulfonic acid

(PFOS) 37 N

The RPD discrepancies observed during the soil sampling program did not appear to show a bias between the primary and secondary laboratory, or between primary and duplicate sample results. The single discrepancy

Page 119: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

QA/QC DATA VALIDATION REPORT Job No: 754-MELEN199421

Coffey 754-MELEN199421 30 September 2017

3

was for an elevated concentration of PFOS within a stockpile sample and was considered to be a result of sample heterogeneity and not a result of laboratory errors. A review of the overall RPD discrepancy results indicate that where discrepancies occur they are unlikely to have resulted in a false negative, as PFOS results are either well above or well below the adopted screening criteria, and consequently, the discrepancies were not considered to impact on the overall quality of the dataset.

1.2.4. Rinsate Blank

ITEM QUESTION YES NO (Comment below)

1 Were Equipment Rinsates collected and analysed every day?

2 Were the Equipment Rinsates free of contaminants? (If no, comment whether the contaminants present are also detected in the samples and whether they are common laboratory chemicals.)

Comments

Three rinsate blanks were submitted to MGT for selected analysis of PFAS. Soil sampling was undertaken using a hand auger/trowel or directly from the surface of the site and via hammer drilling return soil stream sampling. Rinsate samples were collected from the hand auger and trowel as these were in direct contact with the samples collected. Rinsate samples were not collected on several days of sampling including 5 December 2017, 15 February 2018, 16 February 2018 and 24 April 2018. The first three days sampling was undertaken by placing surface soils directly into the sampling vessel without contact with sampling equipment and consequently collection of a rinsate sample was not considered warranted. The sampling undertaken on the 24 April 2018 was for waste classification purposes and soils were collected from waste drums directly into the sampling containers. Collection of a rinsate sample for these days of sampling was not considered warranted. Concentrations for all analytes were below the laboratory LOR for all rinsate blanks.

1.2.5. Trip Blanks

ITEM QUESTION YES NO (Comment below)

1 Were a trip blank collected on each day of sampling?

2 Were the Trip Blanks free of contaminants? (If no, comment whether the contaminants present are also detected in the samples and whether they are common laboratory chemicals.)

Comments

Three trip blanks were submitted to MGT for analysis of PFAS. Concentrations for all analytes were below the laboratory LOR for all trip blanks. The analysis of three trip blanks is below the recommended 1 per day of sampling, however soil samples were submitted on other days concurrently with other samples (biota, surface water, groundwaters) with appropriate trip blanks, which were all free of contaminants indicating a low potential for cross-contamination to have occurred during transit.

Field QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

Page 120: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

QA/QC DATA VALIDATION REPORT Job No: 754-MELEN199421

Coffey 754-MELEN199421 30 September 2017

4

1.3. Laboratory QA/QC ITEM QUESTION YES NO (Comment below)

1 Were the laboratory blanks/reagents blanks free of contamination?

2 Were the spike recoveries within control limits?

3 Were the RPDs of the laboratory duplicates within control limits?

4 Were the surrogate recoveries within control limits?

1.3.1. Laboratory Blanks. All 265 laboratory method blank results reported concentrations of contaminants below the laboratory reporting limits.

1.3.2. Laboratory Duplicates A total of 438 internal laboratory duplicates were analysed by Eurofins and all were within acceptable limits (<30% RPD).

1.3.3. Surrogate recoveries The collated laboratory data for surrogate recoveries reported 15 surrogates (out of a total of 3,043 surrogate analyses undertaken) below the lower recovery limit of 20%. These low recoveries were for PFAS compounds that are not the primary focus of the assessment (PFOS, PFHxS and PFOA) all reporting acceptable surrogate recoveries. A total of 597 surrogate recoveries were above the adopted upper recovery limit of 130% for PFAS compounds (ranging up to 195%). These discrepancies were for a number of PFAS compounds. However, over-reporting of PFAS compounds is considered to add a level of conservatism to the overall results of the assessment, and not considered to impact on the overall outcome of the SuppDSI report.

1.3.4. Laboratory Control Samples A total of 257 laboratory control sample analyses were performed by Eurofins and of these, 7 LCS were outside of the acceptable range (>50%). The compounds with LCS discrepancies were either not PFAS compounds, or were generally not the primary PFAS compounds of concern (PFOS, PFHxS and PFOA).

1.3.5. Matrix Spikes A total of 448 matrix spike analyses were performed by Eurofins and of these 11 Matrix spikes were outside of the adopted 70% – 130% acceptability criteria adopted. Whilst these results were outside of the adopted screening criteria for surface waters, all spike recoveries were within the Eurofins dynamic recovery limits for PFAS of 50% – 150%, indicating the matrix spike results for PFAS compounds was acceptable. A summary of the internal laboratory quality control results is provided in table 30.

Table 2: Summary of internal laboratory QC results

QC test Total Analyses Number outside of Acceptable Criteria

% of analyses acceptable

Method Blanks 265 0 100

Page 121: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

QA/QC DATA VALIDATION REPORT Job No: 754-MELEN199421

Coffey 754-MELEN199421 30 September 2017

5

QC test Total Analyses Number outside of Acceptable Criteria

% of analyses acceptable

Laboratory Duplicates

438 0 100

Laboratory Control Samples

257 7 97.3

Matrix Spikes 448 11 97.5

Surrogates 3,043 612 79.8

Totals 4,451 630 85.8

The review of the laboratory internal quality control testing undertaken indicated that the overall completeness for the internal laboratory quality control results was 85.8%, which is below the 95% target. However, the low completeness is being driven by the large number of surrogate discrepancies, of which the majority were for high recoveries. Given that this adds a level of conservatism to the results, this is not considered to impact on the overall outcome of the investigation.

Laboratory internal QA/QC was:

Satisfactory

Partially Satisfactory

Unsatisfactory

1.4. Summary of Soil Sampling Data Quality Review In general, the data quality of the Soils Sampling was considered to be acceptable.

Minor discrepancies in replicate results between the primary and secondary laboratory were observed, however no bias was observed and the RPD discrepancies were likely a result of soil sample heterogeneity. The overall completeness of the QC RPD analysis undertaken indicates that the minor discrepancies are unlikely to impact on the overall quality of the dataset. Other minor QC deficiencies (rinsate and trip blank collection frequencies and internal laboratory discrepancies) were also considered unlikely to impact on the outcome of the report.

Page 122: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

December 2017-April 2018 Soil and Sediment Sampling Quality Control RPD Summary Table

Department of Defence

Lab Report Number 590909 590909 590911 590911 590911 590911 590911 590911 590911 590911Field ID 1302_SP101.1_180322 1302_QCSP01_180322 RPD 1302_BH243_180322 1302_QCBH03_180322 RPD 1302_BH233_180322 1302_QCBH05_180322 RPD 1302_BH227_180322 1302_QCBH07_180322 RPD 1302_BH216_180322 1302_QCBH09_180322 RPDSampled Date/Time 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18

Primary Intra-lab Primary Intra-lab Primary Intra-lab Primary Intra-lab Primary Intra-labChem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 5 (Primary): 1 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-hexanoic acid (PFHxA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-heptanoic acid (PFHpA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-octanoate acid (PFOA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-nonanoic acid (PFNA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-decanoic acid (PFDA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluorobutane sulfonic acid (PFBS) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 5 (Primary): 0.2 (Interlab) 13.0 15.0 14 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 PFHxS + PFOS µg/kg 5 (Primary): 0.2 (Interlab) 13.0 15.0 14 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Perfluorooctane sulfonamide (PFOSA) µg/kg 5 (Primary): 0.2 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 10 (Primary): 0.2 (Interlab <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 10 (Primary): 0.2 (Interlab <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 10 (Primary): 0.5 (Interlab <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <5.0 0 Sum of PFASs (n=28) µg/kg 50 (Primary): 0.2 (Interlab <50.0 <50.0 0 <50.0 <50.0 0 <50.0 <50.0 0 <50.0 <50.0 0 <50.0 <50.0 0 Sum of WA DER PFAS (n=10) µg/kg 10 (Primary): 0.2 (Interlab 13.0 15.0 14 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <10.0 0

*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 50 (0-10 x EQL); 50 (10-20 x EQL); 30 ( > 20 x EQL) )***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods in the row header relate to those used in the primary laboratory

Filter: Lab_Report_Number in('573310','576549','578685','585633','590909','590911','592696','593565','594151','595358','598205')

Page 123: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

December 2017-April 2018 Soil and Sediment Sampling Quality Control RPD Summary Table

Department of Defence

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 5 (Primary): 1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-nonanoic acid (PFNA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 5 (Primary): 0.5 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 5 (Primary): 0.2 (Interlab) PFHxS + PFOS µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/kg 5 (Primary): 0.2 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 5 (Primary): 0.5 (Interlab) N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 5 (Primary): 0.5 (Interlab) 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 5 (Primary): 0.5 (Interlab) 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 5 (Primary): 0.5 (Interlab) N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 10 (Primary): 0.2 (Interlab N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 10 (Primary): 0.2 (Interlab 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 10 (Primary): 0.5 (Interlab 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) Sum of PFASs (n=28) µg/kg 50 (Primary): 0.2 (Interlab Sum of WA DER PFAS (n=10) µg/kg 10 (Primary): 0.2 (Interlab

*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 50 (0-10 x EQL); 50 (10-2 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. An

590909 EB1807729 590911 EB1807730 590911 EB1807730 590911 EB1807730 590911 EB18077301302_SP101.1_180322 1302_QCSP02_180322 RPD 1302_BH243_180322 1302_QCBH04_180322 RPD 1302_BH233_180322 1302_QCBH06_180322 RPD 1302_BH227_180322 1302_QCBH08_180322 RPD 1302_BH216_180322 1302_QCBH10_180322 RPD

22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18 22-03-18Primary Inter-lab Primary Inter-lab Primary Inter-lab Primary Inter-lab Primary Inter-lab

<5.0 <1.0 0 <5.0 <1.0 0 <5.0 <1.0 0 <5.0 <1.0 0 <5.0 <1.0 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 0.2 0 <5.0 0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 013.0 8.9 37 <5.0 1.3 0 <5.0 0.2 0 <5.0 1.2 0 <5.0 0.3 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 013.0 9.1 35 <5.0 1.5 0 <5.0 0.2 0 <5.0 1.2 0 <5.0 0.3 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0 <5.0 <0.2 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0<5.0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0

<10.0 <0.2 0 <10.0 <0.2 0 <10.0 <0.2 0 <10.0 <0.2 0 <10.0 <0.2 0<10.0 <0.2 0 <10.0 <0.2 0 <10.0 <0.2 0 <10.0 <0.2 0 <10.0 <0.2 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0

<10.0 <0.5 0 <10.0 <0.5 0 <10.0 <0.5 0 <10.0 <0.5 0 <10.0 <0.5 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0<5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0 <5.0 <0.5 0

<50.0 9.1 0 <50.0 1.5 0 <50.0 0.2 0 <50.0 1.2 0 <50.0 0.3 013.0 9.1 35 <10.0 1.5 0 <10.0 0.2 0 <10.0 1.2 0 <10.0 0.3 0

Filter: Lab_Report_Number in('573310','576549','578685','585633','590909','590911','592696','593565','594151','595358','598205')

Page 124: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

December 2017-April 2018 Soil and Sediment Sampling Quality Control RPD Summary Table

Department of Defence

Lab Report NumberField IDSampled Date/Time

Chem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/kg 5 (Primary): 1 (Interlab) Perfluoro pentanoic acid (PFPA or PFPeA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-hexanoic acid (PFHxA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-heptanoic acid (PFHpA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-octanoate acid (PFOA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-nonanoic acid (PFNA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-decanoic acid (PFDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-undecanoic acid (PFUnDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-dodecanoic acid (PFDoDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-tridecanoic acid (PFTriDA) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-tetradecanoic acid (PFTeDA) µg/kg 5 (Primary): 0.5 (Interlab) Perfluorobutane sulfonic acid (PFBS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-hexane sulfonic acid (PFHxS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-heptane sulfonic acid (PFHpS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-octane sulfonic acid (PFOS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-decane sulfonic acid (PFDS) µg/kg 5 (Primary): 0.2 (Interlab) PFHxS + PFOS µg/kg 5 (Primary): 0.2 (Interlab) Perfluoro-n-pentane sulfonic acid (PFPeS) µg/kg 5 (Primary): 0.2 (Interlab) Perfluorooctane sulfonamide (PFOSA) µg/kg 5 (Primary): 0.2 (Interlab) N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/kg 5 (Primary): 0.5 (Interlab) N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/kg 5 (Primary): 0.5 (Interlab) 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/kg 5 (Primary): 0.5 (Interlab) 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/kg 5 (Primary): 0.5 (Interlab) N-Methyl perfluorooctane sulfonamidoacetic acid µg/kg 10 (Primary): 0.2 (Interlab N-Ethyl perfluorooctane sulfonamidoacetic acid µg/kg 10 (Primary): 0.2 (Interlab 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/kg 10 (Primary): 0.5 (Interlab 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/kg 5 (Primary): 0.5 (Interlab) Sum of PFASs (n=28) µg/kg 50 (Primary): 0.2 (Interlab Sum of WA DER PFAS (n=10) µg/kg 10 (Primary): 0.2 (Interlab

*RPDs have only been considered where a concentration is greater than 0 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 50 (0-10 x EQL); 50 (10-2 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. An

595760 5957601302_214-1_180424 1302_QCBH01_180424 RPD

24-04-18 24-04-18Primary Intra-lab

<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0<5.0 <5.0 0

<10.0 <10.0 0<10.0 <10.0 0<5.0 <5.0 0

<10.0 <10.0 0<5.0 <5.0 0<5.0 <5.0 0

<50.0 <50.0 0<10.0 <10.0 0

Filter: Lab_Report_Number in('573310','576549','578685','585633','590909','590911','592696','593565','594151','595358','598205')

Page 125: 1. SURFACE WATER (October to December 2017)€¦ · 1. SURFACE WATER (October to December 2017) Surface water sampling was undertaken in October, November and December 2017 from various

RAAF Base DarwinPFAS Assessment

December 2017-April 2018 Soil and Sediment Sampling Quality Control Blanks Summary Table

Department of Defence

Lab Report Number 594151 590909 590911 594151 590909 590911Field ID 1302_QCSS02_180412 1302_QCSP04_180322 1302_QCBH02_180322 1302_QCSS01_180412 1302_QCSP03_180322 1302_QCBH01_180322Sampled Date/Time 12-04-18 22-03-18 22-03-18 12-04-18 22-03-18 22-03-18

Rinsate Rinsate Rinsate Trip_B Trip_B Trip_BChem_GroChemName Units EQLPFAS Perfluorobutanoic acid (PFBA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 Perfluoro pentanoic acid (PFPA or PFPeA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexanoic acid (PFHxA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptanoic acid (PFHpA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octanoate acid (PFOA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-nonanoic acid (PFNA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decanoic acid (PFDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-undecanoic acid (PFUnDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-dodecanoic acid (PFDoDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tridecanoic acid (PFTriDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-tetradecanoic acid (PFTeDA) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorobutane sulfonic acid (PFBS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-hexane sulfonic acid (PFHxS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-heptane sulfonic acid (PFHpS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-octane sulfonic acid (PFOS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-decane sulfonic acid (PFDS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 PFHxS + PFOS µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluoro-n-pentane sulfonic acid (PFPeS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Perfluorooctane sulfonamide (PFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methylperfluoro-1-octane sulfonamide (N-MeFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethylperfluoro-1-octane sulfonamide (N-EtFOSA) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Methylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 2-(N-Ethylperfluoro-1-octane sulfonamide)-ethanol µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Methyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 N-Ethyl perfluorooctane sulfonamidoacetic acid µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-Perfluorohexanesulfonic Acid (4:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-perfluorooctanesulfonic acid (6:2 FTS) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 1H.1H.2H.2H-perfluorodecanesulfonic acid (8:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 1H.1H.2H.2H-dodecanesulfonic acid (10:2 FTS) µg/L 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Sum of PFASs (n=28) µg/L 0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Sum of WA DER PFAS (n=10) µg/L 0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05

Filter: Lab_Report_Number in('573310','576549','578685','585633','590909','590911','592696','593565','594151','595358','598205')