environmental assessment works - stage...

Greencap 12 Greenhill Road Wayville SA 5034

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ENVIRONMENTAL ASSESSMENT WORKS - STAGE 2 South Australian Environment Protection Authority 37‐ 41 Cliff Street, Glenelg East

June 2015 J125792 Report Version: J125792/01

C109561

June 2015

Environmental Assessment Works South Australian Environment Protection Authority 37 ‐ 41 Cliff Street, Glenelg East

EXECUTIVE SUMMARY

Greencap (incorporating AEC Environmental) was commissioned by the South Australian Environment Protection Authority to conduct additional site investigations in the vicinity of a former dry cleaners located at 37 – 41 Cliff Street, Glenelg East, South Australia. The aim of the work was to attempt to delineate existing groundwater and soil vapour contamination previously identified, and to gather further site specific data. It is noted that this report presents a factual account of the works undertaken (as determined in consultation with the client) and it is understood the results will be used to complete risk assessment works by SA Health.

Groundwater Investigations Previous environmental assessment works conducted at the site identified heavy metal, fuel related and volatile chlorinated hydrocarbon groundwater impacts. The volatile chlorinated hydrocarbon impacts were reported to be an order of magnitude higher than the adopted guideline levels and were shown to migrate offsite to the north west (along the inferred hydraulic gradient) and into the secondary quaternary aquifer. Additional work was undertaken with the aim of determining the extent of groundwater impacts within the Q1 aquifer only, with particular emphasis placed on the previously reported chlorinated hydrocarbon impacts due to their higher toxicity compared to other analytes.

The most recent groundwater investigation comprised the installation of an additional five offsite groundwater monitoring wells. The entire groundwater well network was sampled and elevated chlorinated hydrocarbon results above the adopted guidelines were reported in sixteen of the twenty three groundwater wells. The extent the chlorinated hydrocarbon impacts in groundwater are not delineated to the north west of the site (along the inferred hydraulic gradient) with relatively high chlorinated hydrocarbon concentrations reported in the most down‐gradient well from the site.

Soil Vapour Investigation A soil vapour investigation was undertaken across the site and surrounding residential areas to assess the extent of any soil vapour impacts. A total of eight additional soil vapour points were installed offsite with the aim of determining the extent of the chlorinated hydrocarbon soil vapour impacts. A total of twenty soil vapour points were sampled using summa canisters, while five selected locations were also sampled using thermal desorption tubes for comparative purposes. The reported results indicate elevated volatile chlorinated hydrocarbon concentrations were present in soil vapour above the adopted interim health investigation levels (National Environment Protection Measure) at the majority of locations. Thermal desorption tube results were consistently higher compared to the summa canister results at the five locations where both sampling methods were adopted.

The soil vapour results indicate the extent of the impacts has not been delineated, with only six offsite soil vapour points reporting results below the adopted criteria (the majority of which are located to the south of the site).

Crawl Space and Outdoor Air Investigation Crawl space sampling was undertaken within the residence located adjacent the drycleaners site (35 Cliff Street) with detectable levels of chlorinated hydrocarbons reported. A property survey was undertaken across the investigation area which indicated that the majority of the properties surrounding the site were likely to have crawl spaces.

An outdoor air investigation was also undertaken across the former drycleaners site. No discernible contaminant concentration pattern was identified across the three locations for the volatile contaminants of concern.

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East i

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Statement of Limitations This report has been prepared in accordance with the agreement between South Australian Environment Protection Authority and Greencap.

Within the limitations of the agreed upon scope of services, this work has been undertaken and performed in a professional manner, in accordance with generally accepted practices, using a degree of skill and care ordinarily exercised by members of its profession and consulting practice. No other warranty, expressed or implied, is made.

This report is for the use of South Australian Environment Protection Authority and any reliance on this report by third parties shall be at such party's sole risk and may not contain sufficient information for purposes of other parties or for other uses. This report shall only be presented in full and may not be used to support any other objective than those set out in the report, except where written approval with comments are provided by Greencap.

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Environmental Assessment Works ‐ Stage 2 South Australian Environment Protection Authority 37 ‐ 41 Cliff Street, Glenelg East

Table of Contents

EXECUTIVE SUMMARY..................................................................................................... i 1.0 INTRODUCTION ..................................................................................................... 1 2.0 SITE DETAILS.......................................................................................................... 2

2.1 Site Identification and Zoning ................................................................................. 2 2.2 Physical Setting ...................................................................................................... 2 2.3 Local Geology (Based on field Investigations) ......................................................... 2 2.4 Site Description and Current Land Use.................................................................... 2

3.0 PREVIOUS ENVIRONMENTAL REPORTS.................................................................. 4 4.0 GROUNDWATER INVESTIGATION .......................................................................... 6

4.1 Installation of Additional Groundwater Monitoring Wells ...................................... 6 4.2 Sampling of Groundwater Well Network ................................................................ 6 4.3 Groundwater Investigation Results......................................................................... 7 4.4 Aquifer Permeability Testing ................................................................................ 11

5.0 SOIL VAPOUR INVESTIGATION............................................................................. 14 5.1 Installation of Additional Soil Vapour Points......................................................... 14 5.2 Sampling of Soil Vapour Point Network ................................................................ 14 5.3 Soil Vapour Investigation Results.......................................................................... 16 5.4 Soil Geotechnical Results ...................................................................................... 19

6.0 CRAWL SPACE AND OUTDOOR AIR INVESTIGATION ............................................ 20 6.1 Crawl Space Sampling........................................................................................... 20 6.2 Property Survey.................................................................................................... 21 6.3 Outdoor Air Investigation ..................................................................................... 21

7.0 QUALITY ASSURANCE AND QUALITY CONTROL.................................................... 23 7.1 Internal Laboratory QA......................................................................................... 23 7.2 Field Duplicates .................................................................................................... 23 7.3 Soil Vapour Leak Testing....................................................................................... 25 7.4 Blank Samples ...................................................................................................... 26 7.5 Data Quality Conclusions...................................................................................... 27

8.0 CONCLUSIONS ..................................................................................................... 28 9.0 LIMITATIONS OF THIS REPORT............................................................................. 29

FIGURES .....................................................................................................................XXX RESULTS SUMMARY TABLES – GROUNDWATER ........................................................XXXI RESULTS SUMMARY TABLES – SOIL VAPOUR & CRAWL SPACE .................................XXXII RESULTS SUMMARY TABLES – Outdoor Air (Radiello)..............................................XXXIII

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Appendix A: Current Certificate of Title ...................................................................XXXIV Appendix B: Groundwater Well and Soil Vapour Point Installation Logs...................XXXV Appendix C: Groundwater Sampling Records and Water Quality Meter Calibration

Certificates .....................................................................................................XXXVI Appendix D: Groundwater Well Survey Results ......................................................XXXVII Appendix E: NATA Laboratory Certificates – Groundwater ....................................XXXVIII Appendix F: Slug Test Analyses................................................................................XXXIX Appendix G: Soil Vapour Sampling Records and Equipment Calibration Certificates..... XL Appendix H: NATA Laboratory Certificates – Soil Vapour and Crawl Space .................. XLI Appendix I:Geotechnical Laboratory Certificates........................................................ XLII Appendix J: NATA Laboratory Certificates – Radiello ................................................. XLIII Appendix K: Soil Core Photographs ........................................................................... XLIV

Figures in Report: Figure 1: Site Location........................................................................................................................................1 Figure 2: Site Layout...........................................................................................................................................3 Figure 3: Crawl Space Sampling Locations (35 Cliff Street) ............................................................................. 20 Figure 4: Radiello Sampling Locations............................................................................................................. 22

Tables in Report: Table 1 – Previous Environmental Assessments Reports...................................................................................4 Table 2 –Survey and Groundwater Level Results...............................................................................................7 Table 3 –Field measured groundwater quality parameters...............................................................................8 Table 4 – Adopted Groundwater Assessment Criteria.................................................................................... 10 Table 5 – Main Hydrogeological Properties .................................................................................................... 12 Table 6 –Main Hydrogeological Properties ..................................................................................................... 12 Table 7 – Stabilised Gases (April 2015) ........................................................................................................... 16 Table 8 – TDT vs Summa Soil Vapour Results (April 2015).............................................................................. 18 Table 9 –Summary of Soil Geotechnical Results ............................................................................................. 19 Table 10 –Field Duplicate Samples.................................................................................................................. 24 Table 11 –Field Duplicate Samples.................................................................................................................. 25 Table 12 – Blank sample Analyses................................................................................................................... 26

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East iv

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Greencap Document Control.

Report Title:- Environmental Assessment Works – Stage 2, 37-41 Cliff Street, Glenelg East

Greencap Job Ref:- J125792

Filename:- J125792 Stage 2 ESA Street, Glenelg East

Works, 37-41 Cliff

Written:

Simon Welsh Senior Environmental Scientist

Approved:

Andrew Durand Contaminated Land Manager (SA)

Rev No Status Date Author Reviewer

0 Draft June 2015 SW AD

1 Final June 2015 SW AD

Rev No Copies Recipient

0 1 x Digital South Australian Environment Protection Authority

1 1 x Digital South Australian Environment Protection Authority

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East v

June 2015

1.0 INTRODUCTION

Greencap (incorporating AEC Environmental) was commissioned by the South Australian Environment Protection Authority (SA EPA) to conduct additional site investigations in the vicinity of a former dry cleaners located at 37 ‐ 41 Cliff Street, Glenelg East, South Australia. The objective of the additional works was to attempt to delineate existing groundwater and soil vapour contamination plumes and to gather further data (crawl space and outdoor air) to support a human health risk assessment. The scope of works was determined in consultation with the SA EPA and SA Health and it is understood that the results presented in this report will be used to complete risk assessment works. The location of the former dry cleaners is presented in Figure 1.

N

Approximate site location

Approximate scale

0 50 m

Source: www.maps.google.com.au (viewed 21 May 2015)

Figure 1: Site Location

The required scope of works in general terms has comprised: Groundwater investigations to further delineate a contamination plume identified in the water table

(Q1) aquifer. Soil vapour investigations to further delineate a soil vapour contamination plume associated with the

groundwater impacts. Gathering further site specific data to support a human health risk assessment (crawl space and

outdoor air data). The preparation of a factual report.

This assessment has been prepared with reference to industry standards and guidelines including the National Environment Protection (Assessment of Site Contamination) Measure 1999 (as amended 2013), the Australian Standard AS4482.1 ‐ 2005 (Guide to the Investigation and Sampling of Potentially Contaminated Soil), the South Australian Environment Protection (Water Quality) Policy 2003 (SA EPP) and the Australian and New Zealand Environment and Conservation Council & Agriculture and Resource Management Council of Australia and New Zealand (ANZECC/ARMCANZ, 2000).

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East 1

www.maps.google.com.au

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2.0 SITE DETAILS

2.1 Site Identification and Zoning

The site is described by Certificate of Title Volume 5877 Folio 549 and comprises allotments 21, 24 and 25 of Deposited Plan 1008. The site is located in the area named Glenelg East in the Hundred of Noarlunga. The registered owner of the site is Glenelg Dry Cleaners Pty Ltd. A copy of the current Certificate of Title is provided in Appendix A.

2.2 Physical Setting

The site is situated in the suburb of Glenelg East, located approximately 8 kilometres south west of the Adelaide CBD and 2 kilometres east of the coast (Gulf St Vincent). The nearest permanent watercourse is the Sturt River which is located approximately 1 kilometre to the east of the site. The site and surrounding locality are relatively level.

2.3 Local Geology (Based on field Investigations)

The local geology has been described based on the assessment works presented in this report. The majority of test locations encountered a layer of surface fill generally less than 0.5 metres thick and comprising mixtures of sands, silts, clays and crushed rock along with occasional fragments of concrete. Deeper fill was identified at one test location to a depth of 1.2 metres. The underlying natural soils comprised predominately brown sandy or silty clays.

2.4 Site Description and Current Land Use

The site is a square shaped parcel of land with a total area of approximately 2,700 square metres (m2). The site is currently operating as a commercial shop and caravan storage facility. A large building is located central to the site as well as smaller shed and garage like structures along the eastern and western sides of the main building. The rear of the site comprises a well compacted open gravel area with some concrete sealed surfaces identified beneath the main building, along the front of the site (fronting Cliff Street) and along the southern boundary of the site.

The site is bound by residential properties to the north, east, south and west. The approximate site layout is presented as Figure 2.


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Figure 2: Site Layout


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3.0 PREVIOUS ENVIRONMENTAL REPORTS

Four environmental reports have been prepared previously for the site. Table 1 provides a brief summary of the previous reports. .

Table 1 – Previous Environmental Assessments Reports

Date Consultant and Report Title

Findings

14 Koukourou The report found the site was likely used as a dairy farm prior to the November Engineers ‐ 1950’s, after which dry cleaning has been the primary use. It was 2002 ‘Environmental

Site History Report’

concluded that there was a potential for soil impacts present onsite as a result of historical site activities. The investigation also identified two underground storage tanks (USTs); one located in the south western corner of the site (adjacent a former spirit room) and another centrally located on the eastern boundary of the site (south of a former boiler room). Soil impacts were also considered likely to be present adjacent waste disposal pipework, sumps and sewer lines. No investigations into soil or groundwater was undertaken.

November Soil and The Phase 2 investigation comprised the drilling and sampling from 8 2004 Groundwater

Consulting – ‘Phase 2 Environmental Site Assessment, Glenelg Dry Cleaners, 37 – 41 Cliff Street, Glenelg East’

soil bores across the site as well as the drilling, installation and sampling from 4 groundwater monitoring wells. Analysis of the soil indicated that Tetrachloroethene (PCE) impacts were present underlying the dry cleaning building, the former spirit room and the southern boundary storage area. Groundwater impacts were also identified including fuel related compounds noted in 3 of the 4 wells and volatile compounds (Trichloroethene (TCE), PCE and dichloroethene) identified in all four wells. PCE concentrations were identified up to 100 times greater than adopted assessment criteria and the impacts were deemed to be possibly migrating offsite.

5 March Soil and Additional investigations were undertaken between 2005 and 2008 to 2009 Groundwater

Consulting ‐‘Environmental Site Assessment ‐Phase 2, Glenelg Dry Cleaners, 37 – 41 Cliff Street, Glenelg East’

further investigate the impacts previously identified in both soil and groundwater. The additional work included the drilling and sampling of 21 soil bores across the site as well as the excavation and sampling from 2 test pits. A total of 12 additional groundwater monitoring wells were also installed and sampled both on and offsite. Elevated chlorinated impacts (TCE and PCE) were identified in both soil and groundwater. It was concluded that “the elevated volatile TCE and PCE concentrations in soils and groundwater below the site may result in vapour accumulation within site structures and present an unacceptable human health risk to site personnel in the current commercial site operations”.

January Greencap – Additional environmental assessment works were conducted both 2015 ‘Environmental

Assessment Works ‐ 37 – 41 Cliff Street, Glenelg East’

onsite and offsite in July to October 2014 with the aim of delineating existing groundwater and soil vapour contamination plumes, as well as investigating potential preferential soil vapour pathways within the subsurface. Elevated chlorinated hydrocarbon groundwater impacts were reported above the adopted guidelines in fifteen of nineteen groundwater wells present within the assessment area. The extent of the TCE and PCE impacts was not delineated to the north west of the site (along the inferred hydraulic gradient). In terms of soil vapour, elevated chlorinated hydrocarbon impacts were reported above the adopted guidelines from 12 of 13 soil vapour


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Date Consultant and Report Title

Findings

points installed both onsite and offsite. The extent of the impacts was not delineated, with the exception being to the south west of the site. No significant preferential pathways were identified within the soil profile based on the information obtained. A screening assessment was also conducted in accessible service pit/underground services in the vicinity of the site in which no elevated volatile concentrations were detected.

It is noted that other work was undertaken by AECOM and Mott MacDonald in 2012/2013. Some information (but no formal report) was provided to Greencap in relation to the installation of four soil vapour points installed both onsite (one within the main building onsite (SGP1) and one adjacent the building to the west (SGP02)) and offsite (two within the adjacent residential property to the west (SGP03 and SGP04)). The works conducted are also understood to have included a groundwater monitoring event in February 2012. Only limited information was provided in relation to the installation and sampling of these sampling points work conducted by AECOM and Mott MacDonald and therefore this data has not been considered further.


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4.0 GROUNDWATER INVESTIGATION

As discussed in Section 3.0, chlorinated hydrocarbon impacts have been identified in groundwater underlying the site and extending offsite. The extent of these impacts is not known and as such additional groundwater assessment work has been undertaken as discussed in the following sections. Surveying of recently installed groundwater wells and aquifer permeability tests were also undertaken as part of the groundwater investigation.

4.1 Installation of Additional Groundwater Monitoring Wells

Five additional groundwater monitoring wells (GW19 to GW23 inclusive) were installed between 8 April 2015 and 10 April 2015 under the supervision of experienced environmental consultants. All wells were installed into the first quaternary aquifer (Q1). The locations of the additional wells were determined in consultation with the SA EPA and are shown on Figure A attached to this report.

The aim of the groundwater investigation was to delineate the extent of the identified chlorinated hydrocarbon impacted groundwater, particularly the extent of the TCE and PCE impacts. The five additional groundwater monitoring wells were drilled using solid augers to a depth of six metres and installed with a three metre screen at the base of each well. A sand pack was placed around the screen of each monitoring well extending 0.5 metre above the top of the screen, and a bentonite plug was placed above the sand pack to the surface (to prevent infiltration of rainfall). All monitoring wells were completed with gatic covers installed flush to the ground surface. Groundwater well installation logs are presented in Appendix B and photographs taken of each core following drilling are presented in Appendix K.

Following installation, all five wells were developed to remove excess silt and ensure representative groundwater was flowing into each well.

4.2 Sampling of Groundwater Well Network

A groundwater monitoring event was conducted between 16 and 22 April 2015. A total of twenty three groundwater wells (GW1 to GW23 inclusive) were sampled. A summary plan showing the groundwater well locations is presented as Figure A attached to this report.

4.2.1 Sampling Methodology

Groundwater samples were collected using industry accepted procedures. Initially, standing water levels and the depth to the base of each well were measured from the top of the gatic using a water/oil interphase meter. Measurements were also taken to check for any separate phase (free) product present in the wells.

All purging and sampling was conducted using low flow peristaltic pump methods and using dedicated low density polyethylene (LDPE) tubing. The use of dedicated tubing for each well negated the need for decontamination of equipment between sampling locations. During low flow purging, groundwater level measurements were recorded to confirm that drawdown within the sampled well was being maintained at a minimum (less than 10cm). Water quality parameters (pH, temperature, conductivity, oxidation reduction potential and dissolved oxygen) were monitored during purging using a YSI Professional Plus water quality meter. Sampling was conducted when these parameters had stabilised.

All groundwater samples collected from the wells were placed in containers provided by the analytical laboratory. Groundwater samples collected for heavy metals were filtered through a pre‐sterilised 150mL vacuum driven disposable filter (0.45 micron) prior to placement in sample containers supplied by the testing laboratory. The samples were stored on ice in a portable cooler immediately following sampling and were delivered under similar conditions to the analytical laboratory with accompanying chain of custody documentation.


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The groundwater sampling records and the water quality meter calibration certificate are provided in Appendix C.

4.2.2 Groundwater Analytical Program

Groundwater samples collected from each monitoring wells were analysed for: Volatile halogenated compounds; Total Recoverable Hydrocarbons (TRH), Benzene, Toluene, Ethylbenzene and Xylene compounds (BTEX)

and Naphthalene; Anions/Cations including calcium, magnesium, sodium, potassium, sulphate, chloride, alkalinity; Nitrate, nitrite and ammonia; Salinity; Manganese; Ferrous and ferric iron; Methane; and Sulphate and sulphite.

Results of the groundwater analyses are discussed in Section 4.3. There is also a summary table of analytical results presented as an attachment to this report. Samples of groundwater were also submitted to a secondary laboratory for QA/QC purposes, and are discussed in detail in Section 7.0.

The laboratories used for the groundwater investigation were Eurofins‐mgt (primary laboratory) and ALS Environmental (secondary laboratory). The laboratories are approved by the National Association of Testing Authorities (NATA), and the analyses conducted are within the NATA registration of the laboratories.

4.3 Groundwater Investigation Results

4.3.1 Survey, Gauging and Groundwater Flow Direction

Recently installed groundwater monitoring wells (GW19 to GW23 inclusive) and existing groundwater monitoring wells, GW16 to GW18 inclusive, were surveyed to the Australian Height Datum (AHD) on 22 April 2015 by Alexander Symonds Pty Ltd. Groundwater wells GW01 to GW15 were surveyed during the last stage of environmental works in July 2014 by Fyfe Pty Ltd. This data was then used in conjunction with gauging data obtained prior to sampling (16 April 2015) to determine the groundwater flow direction across the investigation area. As presented in Table 2, and Figure B attached, the groundwater flow across the investigation area has been inferred to be in a north westerly direction. A copy of the survey results are presented in Appendix D.

Table 2 –Survey and Groundwater Level Results

Location Easting Northing Depth to base of well (m below top of casing)

Reference Elevation (m AHD)

Depth to Water

(m below top of well casing)

Groundwater Level

(m AHD)

GW01 274296.5 6125605.9 5.04 8.87 4.41 4.46

GW02 274325.7 6125619.8 5.97 8.79 4.27 4.52

GW03 274314.6 6125654.1 4.92 8.44 4.01 4.42

GW04 274293.1 6125631.7 5.86 8.54 4.13 4.41

GW05 274288.3 6125607.1 5.93 8.94 4.50 4.44

GW06 274287.8 6125625.2 5.91 8.77 4.35 4.41

GW07 274299.1 6125599.9 5.92 8.86 4.38 4.47


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Location Easting Northing Depth to base of well (m below top of casing)

Reference Elevation (m AHD)

Depth to Water

(m below top of well casing)

Groundwater Level

(m AHD)

GW08 274287.1 6125651.8 5.86 8.46 4.09 4.37

GW09 274309.7 6125621.6 7.66 8.82 4.35 4.47

GW10 274321.6 6125634.2 6.91 8.56 4.07 4.49

GW11 274278.9 6125626.6 6.84* 8.62 ‐^ ‐

GW12 274275.4 6125630.2 6.83 8.53 4.15 4.38

GW13 274307.6 6125633.6 6.84 8.77 4.32 4.45

GW14 274279.0 6125610.0 6.42 8.80 4.39 4.41

GW15 274265.6 6125668.0 6.71 8.20 3.88 4.32

GW16 274212.5 6125720.6 5.63 7.93 3.79 4.13

GW17 274231.1 6125664.9 5.93 7.96 3.72 4.24

GW18 274287.8 6125669.8 5.75 8.18 3.82 4.35

GW19 274112.4 6125766.4 5.94 7.70 3.84 3.85

GW20 274217.3 6125775.5 5.95 8.05 3.99 4.06

GW21 274156.0 6125658.3 5.61 7.49 3.41 4.08

GW22 274130.2 6125714.2 5.97 7.92 3.96 3.96

GW23 274241.1 6125626.7 5.96 8.35 4.08 4.26 * Total depth of well based obtained during sampling of well on 21 April 2015 (following removal of bailer stuck in well). ^ Groundwater level could not be gauged due to bailer stuck near base of well at time of gauging.

No free phase separated hydrocarbons (dense non aqueous phase liquids (DNAPL) or light non aqueous phase liquids (LNAPL)) were detected in any of the wells during gauging

4.3.2 Field Measured Water Quality Parameters

Groundwater quality parameters were monitored during purging and prior to sampling between 16 and 22 April 2015. The stabilised values of these parameters are summarised in Table 3.

Table 3 –Field measured groundwater quality parameters

Well I.D Date pH Temp (Deg C)

Total Dissolved Solids** (mg/L)

Oxidation Reduction Potential (ORP) (mV)

Dissolved Oxygen (DO) (mg/L)

GW01 20/04/15 7.01 20.3 2,938 148.3 1.66

GW02 21/04/15 6.49 19.3 2,554 122.0 0.26

GW03 21/04/15 6.81 21.4 3,158 100.2 1.89

GW04 20/04/15 6.84 18.6 3,011 142.9 0.79

GW05 20/04/15 6.94 19.3 2,916 143.2 1.68

GW06 20/04/15 7.03 19.4 3,012 151.8 1.69

GW07 21/04/15 6.70 20.0 2,671 134.1 1.48

GW08 21/04/15 6.69 21.5 2,924 100.6 0.43


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Well I.D Date pH Temp (Deg C)

Total Dissolved Solids** (mg/L)

Oxidation Reduction Potential (ORP) (mV)

Dissolved Oxygen (DO) (mg/L)

GW09 20/04/15 6.91 19.2 3,120 121.9 0.72

GW10 21/04/15 6.52 18.8 2,954 106.3 0.42

GW11 21/04/15 6.94 19.8 2,687 97.4 0.89

GW12 21/04/15 7.03 19.5 2,640 86.0 1.89

GW13 20/04/15 6.82 18.6 3,137 97.1 0.49

GW14 21/04/15 6.78 19.2 2,593 104.9 1.53

GW15 22/04/15 6.65 22.0 2,871 120.3 0.94

GW16 22/04/15 6.56 21.2 2,762 121.5 0.33

GW17 22/04/15 6.69 23.3 3,030 114.0 0.95

GW18 22/04/15 6.62 22.8 3,000 147.2 0.59

GW19 16/04/15 6.53 20.6 2,513 114.6 1.53

GW20 20/04/15 ‐ ‐ 2,500^ ‐ ‐

GW21 22/04/15 6.69 22.2 2,894 99.3 0.65

GW22 16/04/15 6.47 20.2 3,153 115.9 0.41

GW23 21/04/15 6.64 20.2 2,657 114.6 0.83 ** Conversion factor of 0.64 used to convert field conductivity (µS/cm) to Total Dissolved Solids (TDS) (mg/L). ^ TDS based on laboratory report salinity concentration (field parameters not collected during purging / sampling of well)

As shown in Table 3, the measured parameters (pH, Temp, TDS, ORP and DO) were generally consistent across the well network. The pH ranged from 6.47 (GW22) to 7.03 (at GW06 & GW12), TDS ranged from 2,513mg/L (at GW19) to 3,158mg/L (at GW03) and ORP ranged from 86.0mV (at GW12) to 151.8mV (at GW06). DO measurements ranged from 0.26ppm (at GW02) to 1.89ppm (at locations GW03 and GW12).

4.3.3 Groundwater Assessment Criteria

The groundwater analytical results have been compared with adopted investigation levels for the protection of irrigation, aquaculture and aquatic marine environmental values, as proposed in the South Australian Environment Protection (Water Quality) Policy 2003 (SA EPP). The criteria has been adopted based on a limited beneficial use assessment undertaken as part of previous site investigation work (refer 2009 S&G report).

Where the abovementioned criteria have not been proposed for particular analytes, the following alternative sources have been used:‐ National Environment Protection (Assessment of Site Contamination) Measure 1999 (NEPM) –

Groundwater Investigation Levels for Marine Waters; National Environment Protection (Assessment of Site Contamination) Measure 1999 (NEPM) – Health

Screening Levels for Vapour Intrusion (Residential) assuming a Clay soil type; and Australian and New Zealand Environment and Conservation Council & Agriculture and Resource

Management Council of Australia and New Zealand (ANZECC/ARMCANZ, 2000).

Analytical results have not been compared to potable criteria listed in the abovementioned SA EPP as previous work indicated that the salinity beneath the site is not considered suitable for potable use (refer 2009 S&G report). Furthermore, freshwater ecosystem protection criteria have not been adopted as the


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nearest freshwater ecosystem identified in proximity of the site (Sturt Drain approximately 1km west) was modified in such a way that it was not considered to be a protected environmental value.

The selected assessment criteria are presented in Table 4.

Table 4 – Adopted Groundwater Assessment Criteria

Analyte

SA EPP Groundwater Criteria, 2003 NEPM ANZECC 2000

Irrigation Aquaculture Aquatic Marine

Marine Waters GILs

Vapour Intrusion Residential

Recreation

Inorganic and Other Pollutants

Ammonia (as N) ‐ ‐ 0.2 ‐ ‐ 0.01

Chloride ‐ ‐ ‐ ‐ ‐ 400

Nitrate (as N) ‐ ‐ ‐ ‐ ‐ 10

Nitrite (as N) ‐ ‐ ‐ ‐ ‐ 1

Nitrogen (Total Oxidised)

‐ ‐ 0.2 ‐ ‐ ‐

Sodium ‐ ‐ ‐ ‐ ‐ 300

Salinity (as TDS) 1,000

Metal Pollutants

Iron 1 ‐ ‐ ‐ ‐ 0.3

Manganese 2 0.1 ‐ ‐ ‐ 0.1

Organic Pollutants

Benzene ‐ 0.04 0.3 0.5 5 0.01

Naphthalene ‐ ‐ ‐ 0.05 ‐ ‐

Chlorinated Compounds

1,1‐dichloroethene ‐ ‐ ‐ ‐ ‐ 0.0003

1,2‐dichloroethane ‐ ‐ ‐ ‐ ‐ 0.01

1,1,2‐trichloroethane ‐ ‐ ‐ 1.9 ‐ ‐

1,2,4‐trichlorobenzene

‐ ‐ ‐ 0.02 ‐ ‐

Carbon Tetrachloride ‐ ‐ ‐ ‐ ‐ 0.003

Tetrachloroethene (PCE)

‐ ‐ ‐ ‐ ‐ 0.01

Trichloroethene (TCE) ‐ ‐ ‐ ‐ ‐ 0.03

NOTE:‐ units of mg/L unless stated otherwise

4.3.4 Laboratory Testing Results

Summary tables of the groundwater results are presented as an attachment to this report. NATA Laboratory certificates for the analyses undertaken are attached in Appendix E.

The majority of the reported groundwater results were below the adopted groundwater assessment criteria which the exception of the following:‐


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1,1‐dichloroethene – elevated concentrations, above the adopted ANZECC 2000 recreation criteria of 0.3 µg/L were reported from two groundwater monitoring wells GW8 (1µg/L, 2µg/L (QW3) and 1µg/L (QW4)) and GW13 (3µg/L).

Trichloroethene – elevated concentrations, above the adopted ANZECC 2000 recreation criteria of 30 µg/L, were reported from seven groundwater monitoring wells including GW4 (85 µg/L, 87 µg/L (QW1) and 68 µg/L (QW2)), GW8 (390 µg/L, 410 µg/L (QW3) and 617 µg/L (QW4)), GW9 (40 µg/L), GW13 (400 µg/L), GW15 (95 µg/L), GW19 (37 µg/L) and GW22 (34 µg/L);

Tetrachloroethene – elevated Tetrachloroethene concentrations were reported from sixteen of the twenty three groundwater well locations above the adopted ANZECC 2000 recreation criteria of 10 µg/L across the site. Concentrations ranged from 11 µg/L at GW16 (offsite) to 600 µg/L at GW6;

Ammonia (as N) – elevated concentrations were reported above the adopted ANZECC 2000 recreation criteria of 10 µg/L from monitoring wells GW15 (960 µg/L), GW17 (150 µg/L) and GW16 (120 µg/L). The concentration reported at GW15 (960 µg/L) also exceeds the adopted SA EPP Aquatic Marine criteria of 200 µg/L;

Chloride – concentrations reported in all groundwater wells above the adopted ANZECC 2000 recreation criteria of 400 mg/L ranging from 870 mg/L (at GW19) to 1,200 mg/L (at numerous locations)

Nitrogen (Total Oxidised) – two concentrations were reported above the adopted SA EPP Aquatic Marine criteria of 0.2 mg/L from inter‐laboratory duplicate samples QW2 (4.37 mg/L) and QW4 (3.25 mg/L) collected from monitoring wells GW4 and GW8 respectively;

Sodium – concentrations reported in all groundwater wells above the adopted ANZECC 2000 recreation criteria of 300 mg/L ranging from 360 mg/L at GW19 to 500 mg/L at GW9 & GW18;

Total Dissolved Solids – concentrations reported in all groundwater wells above the adopted ANZECC 2000 recreation criteria of 1,000 mg/L ranging from 2,400 mg/L (at GW19) to 3,800 mg/L (within sample QW1 at collected at QW4);

Manganese – five concentrations reported above the adopted SA EPP Aquaculture and ANZECC 2000 recreation criteria of 0.1 mg/L from monitoring wells GW2 (2.6 mg/L), GW4 (0.27 mg/L, 0.27 mg/L (QW1) and 0.24 mg/L (QW2)) and GW10 (0.99mg/L).

Summary plans presenting the approximate extents of the main contaminants of concern (Trichloroethene and Tetrachloroethene) are attached to this report as Figures D and E respectively. As indicated in Figures D and E, the TCE and PCE impacts currently extend beyond approximately 180 metres north west to Wilson Terrace (the furthermost groundwater monitoring well GW19). The PCE impacts have been reported several times higher than the adopted guideline (0.01mg/L) at GW19 (0.078mg/L) and are likely to extend further north west across Wilson Terrace.

4.4 Aquifer Permeability Testing

Aquifer permeability tests (slug tests) were conducted on three offsite groundwater wells (GW17, GW21 and GW22) on 29 May 2015. These wells are located along the approximate inferred centreline of the plume.

The slug tests were performed using a known volume solid slug to create an instantaneous change in groundwater level within the monitoring well, with the subsequent water level recovery monitored using an electronic water level transducer (data logger). Two forms of slug test were performed in each of the monitoring wells: ‘falling head’ and ‘rising head’ tests. The slug tests were analysed using the AQTESOLV software program (employing the Bouwer and Rice method for the slug test analysis. The Bouwer and Rice method was used in preference to the commonly used hvorslev method as it was developed specifically for when groundwater exists within the screened interval of a groundwater well. A minimum of four slug tests were performed on each of the wells consisting of two ‘falling head’ tests and two to three ‘rising head’ tests. Based on a review of the data, a minimum of four of the tests considered to be the most representative were used to estimate the average hydraulic conductivity (K) value for each well (in metres


June 2015

per day). A summary of the estimated K values for each well is presented in Table 5. Slug testing analysis sheets are attached as Appendix F.

Table 5 – Main Hydrogeological Properties

Groundwater Well and Test K (m/day)

GW17_Fall 1 6.01

GW17_Fall 2 6.03

GW17_Rise 1 6.88

GW17_Rise 2 7.39

Average GW17 6.58

GW21 ‐ Fall 1 2.58

GW21 ‐ Fall 2 2.12

GW21 ‐ Rise 1 5.25

GW21 ‐ Rise 2 5.22

GW21 ‐ Rise 3 5.19

Average GW21 4.07

GW22_Fall 1 2.83

GW22_Fall 2 2.69

GW22_Rise 1 3.05

GW22_Rise 2 2.78

Average GW22 2.84

Average 4.50

The hydraulic conductivity values were estimated to range between 2.84 m/day and 6.58 m/day (average 4.50 m/day) for the Q1 aquifer.

The main hydrogeological properties of the water table (Q1) aquifer system are provided in Table 6 based on field observation data, surveying of the well network and the use of published hydrogeological data.

Table 6 –Main Hydrogeological Properties

Item Data Data Source

Depth to Groundwater (below ground level)

3.49 to 4.06 m bgl Site measurements from wells GW17, GW21 and GW22.

Hydraulic Gradient (L) 0.0026 (dimensionless) Site measurements and surveying.

Hydraulic Conductivity (K) 4.50 m/day Based on the results of slug tests conducted for monitoring wells GW17, GW21 and GW22 (average shown in Table 5).

Effective Porosity (P) 0.2 (dimensionless) (20%) Published value for sandy aquifers*

Groundwater Flow Velocity (V) Approximately 20 m/year Estimate for V per year based on above data:

V = ((K x L) / P) * 365

Groundwater Flow Direction North west Site survey and measurements

Notes: *P Domenico & F Schwartz, Physical & Chemical Hydrogeology (1990)

As shown in Table 6, the groundwater flow velocities in the Q1 aquifer was calculated using the average hydraulic conductivity, hydraulic gradient (estimated using groundwater contours shown on Figure B and published data) and an effective porosity of 0.2 (published data for sandy aquifers).


June 2015

Accordingly, the average groundwater flow velocity was estimated at approximately 20m/year for the Q1 aquifer (based on the flow velocity formula presented in Table 6).


June 2015

5.0 SOIL VAPOUR INVESTIGATION

Soil vapour investigations were undertaken both on and offsite in order to assess the presence of vapours associated with both chlorinated hydrocarbons and fuel related compounds as discussed in the following sections.

5.1 Installation of Additional Soil Vapour Points

An additional eight soil vapour monitoring points (including three nested locations) were drilled and installed between 8 and 13 April 2015 under the supervision of experienced Greencap field scientists. All additional soil vapour points (SGP14 to SGP21 inclusive) were installed to a depth of 1.5 metres ground level, with the exception of the three nested locations (SGP18, SGP19 and SGP20) where an additional probe was installed to a depth of 2.5m below ground level. The majority of the soil vapour points were drilled using percussive push tube drilling equipment to reach the target depth(s), however SGP21 was drilled using hand equipment (hand auger). The soil vapour point locations are shown on Figure C attached to this report.

It is noted that during the drilling of soil vapour points SGP15, SGP16, SGP17, SGP19 and SGP20 (and groundwater well GW20), soil geotechnical samples were collected in steel u50 sampling tubes between the depths of 0.7m bgl and 1.27m bgl. Each sample was sealed to prevent moisture loss and submitted to Coffey Environment’s geotechnical laboratory for analysis including moisture content, soil particle density, dry density and bulk density. It is noted that a soil core sample was collected from GW20 instead of the proposed SGP14 (adjacent GW20) due to accessibility issues. A summary of the results are discussed in Section 5.4.

The soil vapour points comprised a stainless steel permanent implant (with woven wire screen) connected to Teflon tubing extending to the ground surface. The vapour points were surrounded by a discrete lightly compacted sand pack (grain size of 2‐3mm) finishing approximately 150mm above the implant. A bentonite seal/plug was installed above the sand pack finishing approximately 50mm from the ground surface. The vapour points were finished with a gatic cover flush to the ground surface with a concrete seal. Further construction details are shown on the soil vapour installation logs attached in Appendix B and photographs taken of each core following drilling are presented in Appendix K.

5.2 Sampling of Soil Vapour Point Network

A soil vapour monitoring event was conducted between 20 and 23 April 2015 of the entire soil vapour point network by an experienced environmental scientist using summa canister sampling methodology. A total of twenty soil vapour points (SGP01 and SGP03 to SGP21 inclusive) were sampled (including nested locations SGP01, SGP05, SGP11, SGP13, SGP18, SGP19 and SGP20).

It is noted that SGP02 could not be sampled as it was blocked and the shallow nested point SGP01_0.5 could not be sampled as field records indicated a likely breach of ambient air into the well (following helium leak testing undertaken on the vapour point).

In addition, a carbon tube sample was collected at each location for possible analysis and five selected locations (SGP10, SGP04, SGP06, SGP09 and SGP11) were also sampled using thermal desorption methodology.

A summary plan showing the soil vapour point locations is presented as Figure C attached to this report.

5.2.1 Summa Canister Sampling Methodology

Soil vapour samples were collected from all soil vapour points (excluding SGP02) using summa canisters supplied by the primary and secondary analytical laboratories, EnviroLab and Australian Laboratory Services (ALS) respectively. The summa canisters were supplied with flow regulators to limit the flow of air from the soil vapour point into the canisters (which were under vacuum). These flow regulators were set to allow a sampling time of approximately 1 hour.


June 2015

Prior to sampling (and during the helium leak test described in Section 7.0 (Quality Assurance/Quality Control) all soil vapour points were purged to remove at least one well volume before basic gases (Oxygen, Carbon Dioxide, Methane, Hydrogen Sulphide and Carbon Monoxide) were measured and stabilised using a GA2000 landfill gas meter. A PID concentration was also collected during the purging process. The measured stabilised gases prior to sampling are discussed in Section 5.3.2.

Leak testing was undertaken prior to and during sampling using both helium and isopropanol testing techniques to ensure representative soil vapour was being sampled from each location. These tests are discussed in further detail within Section 7.0 and as well as the collection and analysis of duplicates and blanks.

Soil vapour sampling sheets and equipment calibration certificates (for the helium meter, landfill gas meter and PID) are attached in Appendix G.

5.2.2 Thermal Desorption Tube Sampling Methodology

Thermal desorption tubes (TDT) for the sampling of the five selected locations were supplied by the primary and secondary analytical laboratories EnviroLab and SGS respectively. A portable air pump was used to regulate the air flow through each of the tubes (at a rate of approximately 100mL/min) to collect the sample.

Two samples were collected from each location following the leak testing, purging and summa canister sampling (described in Section 5.2.1) as follows: a sample exposed to the drawn vapours for 1 minute; and a sample exposed to the drawn vapours for 5 minutes.

Purging and leak testing information is described in Sections 5.3.2 and 6.0 respectively. Soil vapour sampling sheets and equipment calibration certificates are attached to Appendix G.

5.2.3 Carbon Tube Sampling

Following the summa canister sampling at each location (and additional TDT sampling at selected locations) a carbon tube sample was also collected using similar TDT sampling methodology (portable air pump used to regulate air flow through tube at a rate of 100mL/min for one minute).

5.2.4 Soil Vapour Analytical Program

Summa canister and TDT samples collected from each of the locations were submitted to the NATA accredited primary and secondary analytical laboratories (EnviroLab and ALS respectively) and analysed for a suite of volatile compounds (known as a TO‐15 suite for summa canister samples and a TO‐17 suite for thermal desorption samples). Each of the abovementioned suites included chlorinated hydrocarbons. Additionally, samples were also analysed for petroleum related compounds.

Results of the soil vapour analyses are discussed in Section 5.3. There is also a summary table of analytical results presented as an attachment to this report and NATA laboratory certificates presented in Appendix H. Samples of soil vapour submitted to the secondary laboratory (SGS) for QA/QC purposes are discussed in detail in Section 7.0.


June 2015

5.3 Soil Vapour Investigation Results

5.3.1 Measured Basic Gas Levels

The measured basic gas levels during the April 2015 sampling event are summarised in Table 7.

Table 7 – Stabilised Gases (April 2015)

Soil Vapour Point

Measured Parameters

Oxygen (O2) (%)

Carbon Dioxide (CO2) (%)

Methane (CH4) (%)

Hydrogen Sulphide (H2S)

(ppm)

Carbon Monoxide (CO) (ppm)

PID reading (ppm)

SGP01_2.0 16.4 4.0 0.0 0 0 130

SGP03_1.5 17.3 2.8 0.0 0 0 9.7

SGP04_1.5 18.8 1.9 0.0 0 0 0.5

SGP05_1.5 19.4 1.7 0.0 0 0 6.9

SGP05_2.5 18.3 3.0 0.0 0 0 20

SGP06_1.5 20.0 1.4 0.0 0 0 0.0

SGP07_1.5 16.4 4.9 0.0 0 0 15

SGP08_1.5 18.0 2.2 0.0 0 0 1.3

SGP09_1.5 0.0 10.3 0.1 0 0 1.5

SGP10_1.5 19.1 1.2 0.0 0 0 0.5

SGP11_1.5 19.1 1.5 0.0 0 0 1.6

SGP11_2.5 17.4 3.8 0.0 0 0 0.2

SGP12_1.5 18.9 1.8 0.0 0 0 1.1

SGP13_1.5 16.2 3.9 0.0 0 0 2.5

SGP13_2.5 15.6 4.7 0.0 0 0 0.8

SGP14_1.5 15.5 6.3 0.0 0 0 0.2

SGP15_1.5 19.5 1.1 0.0 0 0 0.0

SGP16_1.5 16.5 3.5 0.0 0 0 0.9

SGP17_1.5 19.3 2.1 0.0 0 0 2.2

SGP18_1.5 17.1 4.5 0.0 0 0 0.8

SGP18_2.5 16.6 5.6 0.0 0 0 1.4

SGP19_1.5 16.7 5.2 0.0 0 0 10.7

SGP19_2.5 16.4 5.9 0.0 0 0 15.6

SGP20_1.5 18.4 2.3 0.0 0 0 1.1

SGP20_2.5 18.3 2.8 0.0 0 0 0.7

SGP21_1.5 20.5 0.8 0.0 0 0 0.2


June 2015

As shown in Table 7, oxygen levels ranged between 15.5% and 20.5% with the exception of location SGP09 where an oxygen level of 0.0% was measured. This is significantly lower than the other locations and also corresponds to slightly higher carbon dioxide levels at this this location. It is an indication of oxygen reducing conditions, but the exact reason for such a low concentration is not known. A detailed investigation into this low oxygen concentration was not conducted as part of the scope of works completed by Greencap, however it is noted that these readings were consistent with previous sampling undertaken at this location in 2014.

CO2 levels across the investigation area ranged from 0.8% to 10.3% (SPG09), while the majority of measured methane levels were at the ambient level of 0% with the exception of elevated levels again measured at location SGP09 (0.1%).

H2S and CO levels were all measured at the ambient air level of 0ppm.

The majority of the PID readings were measured below 10ppm with a maximum PID reading of 130ppm measured at SGP01_2.0.

Ambient air levels were measured to be consistent across the soil vapour point network, with the majority of CO2, H2S and CO levels measured at 0% or 0ppm. Oxygen levels were measured to range between 20.0% (at SGP13) to 21.3% (at locations SGP21 and SG06).

5.3.2 Soil Vapour Assessment Criteria

Soil vapour results were compared with Interim Soil Vapour Health Investigation Levels (HILs) for volatile organic chlorinated compounds as outlined in Table 1A(2) ‘Interim soil vapour health investigation levels for volatile organic chlorinated compounds’ presented in the NEPM. Commercial/industrial and residential levels have been adopted for the investigation. It is noted that for some volatile compounds there was no criteria adopted and only those listed in the NEPM were used. Alternative sources were not sourced as part of this investigation.

Soil vapour results were also compared to Health Screening Levels (HSLs) presented in the NEPM document for fuel related compounds. The appropriate NEPM HSLs used were selected based on the depth of soil vapour point installation (either 1m to <2m or 2m to <4m), the dominant material type in which the vapour points were installed (clay – as discussed in Section 2.3) and the land use (commercial/industrial or residential).


A summary of the soil vapour sampling results are attached to this report from April 2015 sampling event. NATA laboratory certificates are attached to Appendix H. A figure presenting the soil vapour concentrations as measured in summa canisters only during the April 2015 sampling event across the site is attached as Figure F.

A number of soil vapour concentrations exceeding the adopted criteria were reported as follows:

cis ‐1,2‐Dichloroethene (DCE) – four reported concentrations exceeded the Interim Soil Vapour HIL for residential land use of 0.08mg/m3 from summa canister samples SGP01_2.0, SGP09_1.5, SGP11_2.5 and QV06_2.5 (duplicate of SGP11_2.5). A further two reported concentrations exceeded the Interim Soil Vapour HIL for residential land use of 0.08mg/m3 from TDT samples SQV05_1.5 (duplicate of SGP04_1.5) and SGP09_1.5. The elevated concentrations ranged between 0.084mg/m3 (TDT sample SQV05_1.5) and 71mg/m3 (summa canister sample SGP09_1.5).

Elevated concentrations also exceeded the adopted Interim Soil Vapour HIL for commercial/industrial land use of 0.3mg/m3 from summa canister samples SGP01_2.0 (71 mg/m3), SGP11_2.5 (0.55 mg/m3) and QV06_2.5 (0.87mg/m3 ‐ duplicate of SGP11_2.5), as well as TDT sample SGP09_1.5 (0.37mg/m3).

Trichloroethene (TCE) – reported concentrations exceeded the Interim Soil Vapour HIL for residential land use of 0.02mg/m3 from the majority of locations, ranging from 0.028 mg/m3 at SGP19_1.5 to 12 mg/m3

at SGP01_2.0. There were eight locations where reported results did not exceed this adopted criteria (SGP10, SGP12 – SGP15 inclusive, SGP18, SGP20 and SGP21). The majority of these eight locations are located to the south and north of the site.


June 2015

Elevated concentrations also exceeded the adopted Interim Soil Vapour HIL for commercial/industrial land use of 0.08mg/m3 from the majority of locations (ranging from 0.12 mg/m3 at SGP09_1.5 to 12 mg/m3 at SGP01_2.0).

It is noted that the detection limit was raised for TCE in summa canister samples collected from locations SGP03, SGP05 and SGP07 due to high levels of other analytes present within the canister samples.

Tetrachloroethene (PCE) – a number of reported concentrations exceeded the Interim Soil Vapour HIL for residential land use of 2mg/m3 from sampling locations SGP01_2.0, SGP03_1.5, SGP05_1.5, SGP05_2.5, SGP06_1.5, SGP07_1.5, SGP11_2.5, SGP12_1.5, SGP17_1.5, SGP18_2.5, SGP19_1.5 and SGP19_2.5. Concentrations ranged from 2.6 mg/m3 (SGP11_2.5) to 140 mg/m3 (SGP01_2.0).

Elevated concentrations were also reported exceeding the adopted Interim Soil Vapour HIL for commercial/industrial land use of 8mg/m3 from the majority of the abovementioned locations, with the exception of locations SGP11_2.5, SGP17_1.5 and SGP18_2.5.

Furthermore, the following observations have been made in relation to the data presented within the attached summary tables: TDT sample concentrations for the main contaminants of concern (DCE, TCE and PCE) appear to be

higher compared to the summa canister sample concentrations at the five locations where both sampling methods were undertaken (SGP04, SGP06, SGP09, SG10 and SGP11). The results are presented in Table 8.

It is noted that due to highly variable PCE results reported from SGP06 in April 2015 (between summa and thermal desorption methods), additional confirmation sampling was conducted on 26 June 2015 from SGP06 (using both summa and thermal desorption methods). The June 2015 results indicate that the TDT concentration (0.12 mg/m3) for PCE was again higher than the reported summa canister concentration (0.013 mg/m3). However, the TDT concentration was significantly lower than the April 2015 concentration (44 mg/m3). Overall the results from SPG06 appear to be quite variable and as the reason for this variability is not known, the results may not be reliable.

Table 8 – TDT vs Summa Soil Vapour Results (April 2015)

Soil Vapour Point

Analyte

DCE TCE PCE

Summa conc. (mg/m3)

TDT conc. (mg/m3)

Summa conc. (mg/m3)

TDT conc. (mg/m3)

Summa conc. (mg/m3)

TDT conc. (mg/m3)

SGP04_1.5 0.053 0.075 – 0.084*

0.19 0.43 – 0.48* 0.34 1.1 – 1.3*

SGP06_1.5 <0.002 <0.01 <0.0027 0.23 0.036 44^

SGP06_1.5 (June 2015)

<0.002 <0.002 <0.0027 <0.002 0.013 0.12

SGP09_1.5 0.23 0.37 0.12 0.29 0.022 0.032

SGP10_1.5 <0.002 <0.01 <0.0027 <0.01 0.37 1.6

SGP11_1.5 <0.002 ‐<0.002*

<0.01 0.042 – 0.045*

0.057 0.12 – 0.17* 0.18

Notes: * ‐ indicates a duplicate was collected here with the latter figure representing the duplicate result. ^ ‐ indicates concentration was above linear calibration curve of thermal desorption tube (therefore this represents an estimated concentration)


June 2015

No comparison could be made between the estimated Vinyl chloride and Trichloroethene concentrations and the adopted guidelines due to a raised detection limit in summa canister samples collected from locations SGP01, SGP03, SGP05 and SGP07. This was due to high levels of other analytes present within the canister samples submitted for analysis.

No TRH or BTEX compounds were reported exceeding the adopted NEPM HSLs from any of the soil vapour points sampled during the April 2015 sampling event.

It is noted that no comparison has been made between the 2014 soil vapour sampling results and the 2015 soil vapour sampling results as part of this report. The 2014 soil vapour sampling results are detailed in a report1 available under separate cover.

5.4 Soil Geotechnical Results

A summary of the soil geotechnical results from the six samples submitted for analysis in April 2015 are presented in Table 8. The majority of the samples submitted for analysis consisted of brown sandy clay of medium plasticity. The geotechnical laboratory reports are attached in Appendix I.

Table 9 –Summary of Soil Geotechnical Results

Sample ID and depth (m bgl)

Specimen Details

Height and Diameter (mm)

Moisture Content (%)

Bulk Density (t/m

3)

Dry Density (t/m

3)

Void Ratio (e)

Porosity (n)

Specific Gravity (t/m

3)

SGP15_0.7‐0.8 68.7 & 50.9 23.6 1.86 1.50 0.76 43.1 2.64

SGP16_0.7‐0.85 65.7 & 50.3 12.0 2.01 1.79 0.49 32.8 2.67

SGP17_1.0‐1.15 93.7 & 50.9 13.3 2.01 1.77 0.49 33.5 2.67

SGP19_1.0‐1.15 68.7 & 50.9 23.6 1.86 1.50 0.76 43.1 2.64

SGP19_1.1‐1.27 65.7 & 50.3 12.0 2.01 1.79 0.49 32.8 2.67

GW20_0.7‐0.8 93.7 & 50.9 13.3 2.01 1.77 0.51 33.5 2.67

1 Environmental Assessment Works, 37‐41 Cliff Street, Glenelg East, January 2015. Ref: J125792/01


June 2015

6.0 CRAWL SPACE AND OUTDOOR AIR INVESTIGATION

6.1 Crawl Space Sampling

Crawl space sampling was undertaken at three locations within the residence located at 35 Cliff Street on 23 and 24 April 2015. The sampling methodology and results are discussed in the following sections.


The crawl space sampling comprised inserting a length of Teflon tubing (connected to a 6 Litre summa canister) through a pre‐drilled hole in the timber flooring three locations within the residence. The tubing was set approximately halfway into the crawl space.

The summa canisters were supplied by NATA accredited primary and secondary analytical laboratories, EnviroLab and ALS respectively. The summa canisters were supplied with flow regulators to limit the flow of air from the soil vapour point into the canisters (which were under vacuum). These flow regulators were set to allow a sampling time of approximately 24 hours.

Samples collected from each of the locations were submitted to the primary and secondary analytical laboratories and analysed for a suite of volatile compounds (known as a TO‐15 suite which included chlorinated hydrocarbons). Additionally, samples were analysed for petroleum related compounds.

The sampling locations are shown in Figure 3.

Figure 3: Crawl Space Sampling Locations (35 Cliff Street)


June 2015


A summary of the crawl space sampling results are attached to this report (included on soil vapour summary table). NATA laboratory certificates are attached to Appendix H. QA/QC samples collected are discussed in detail in Section 7.0.

Some reported concentrations were above the laboratory detection limits as follows: DCE concentrations were reported to range from 0.0023 mg/m3 at location ‘Room 1’ (within sample

QA1) to 0.0041 mg/m3 within sample ‘Room 2’ (above the detection limit of 0.002 mg/m3); A TCE concentration of 0.0038 mg/m3 was reported at location ‘Room 1’ (within sample QA2) above

the detection limit of 0.0027 mg/m3; PCE concentrations were reported to range from 0.061 mg/m3 within sample ‘Room 3’ to 0.130 mg/m3

within sample ‘Room 2’ (above the detection limit of 0.0034 mg/m3); and Toluene concentrations were reported to range from 0.0022 mg/m3 at location ‘Room 1’ (within

sample QA1) to 0.0041 mg/m3 at the same ‘Room 1’ location (within sample ‘QA2’) above the detection limit of 0.002 mg/m3.

6.2 Property Survey

A property survey was also undertaken across the investigation area to determine whether properties were likely to be constructed on either a concrete slab or on strip footings (where timber floors and crawl spaces were likely to be present). The majority of the properties surveyed were noted to likely have ‘timber framed floors’, but it is noted that no access was obtained to the residential properties and information was obtained based on a visual assessment from the footpath only.

6.3 Outdoor Air Investigation

An outdoor air investigation was undertaken at three locations across the former dry cleaners site between 20 April 2015 and 27 April 2015. The sampling methodology and results are discussed in the following sections.


The outdoor air investigation comprised placing laboratory supplied Radiello adsorbent cartridges (designed to be analysed by thermal absorption) at three locations determined in consultation with the SA EPA. The samples were exposed to ambient air for a period of one week which spanned the dates of the soil vapour sampling.

One sample was placed near the western boundary of the site (adjacent the main building), one immediately south of the main building (beneath a canopy) and one along the north eastern alley way entrance to the site. The Radiello sampling locations are shown in Figure 4.

All Radiello cartridges were supplied by the primary laboratory SGS. Samples collected from each of the locations were submitted to the primary (SGS) and secondary (ALS) analytical laboratories and analysed for a suite of volatile compounds (which included chlorinated hydrocarbons). Additionally, samples were analysed for petroleum related compounds.


June 2015

Figure 4: Radiello Sampling Locations


A summary of the Radiello sampling results are attached to this report. NATA laboratory certificates are attached to Appendix J. Duplicate samples collected are discussed in detail in Section 7.0.

A number of detectable volatile compound concentrations were reported from the three primary samples submitted for analysis (the majority of which were fuel related compounds); however no discernible contaminant concentration pattern was identified across the three locations.


June 2015

7.0 QUALITY ASSURANCE AND QUALITY CONTROL

Quality Assurance and Quality Control (QA / QC) measures for the groundwater, soil vapour, crawl space and outdoor air investigations included:‐ appropriate sample labelling, preservation, storage and transport under chain of custody procedures; collection and analyses of field QA / QC samples including duplicate samples and blanks; laboratory analyses conducted within appropriate holding times; conducting leak testing prior to and during soil vapour sampling; use of laboratories that hold NATA accreditation for the analyses undertaken; analysis of laboratory QA / QC samples including matrix spikes, matrix spike duplicates, and surrogates;

and ensuring the sampling equipment (landfill gas meter, helium meter, air sampling pumps and PID) was

calibrated before use;

The following sections detail the QA/QC analyses and consider the analytical data quality.

7.1 Internal Laboratory QA

The results of the internal quality assurance programs of the laboratory are presented with the NATA test certificates in Appendices F, I and K. Appropriate internal QA / QC were reported by both laboratories as follows: Accuracy (measured by laboratory spike and surrogate recovery samples) generally within 70% ‐ 130%

recovery; Precision (measured by duplicate sample analysis) within 30% relative percentage difference; and Minimum 95% completeness (measured by total number of analyses within acceptable limits).

7.2 Field Duplicates

7.2.1 Groundwater Analyses

Field duplicate samples were collected and analysed at the primary and secondary laboratories (Eurofins‐mgt and ALS respectively) during the April 2015 sampling event. Field duplicate samples QW1 and QW2 were collected from groundwater well GW4 while duplicate samples QW3 and QW4 were collected from groundwater well location GW08.

All samples were analysed for the complete suite of analytes as discussed in Section 4.1.2.

The majority of comparable inter and intra laboratory duplicate groundwater analyses had relative percentage difference (RPD) values below the recommended comparison criteria of 50%. However, the following variations were reported: three minor TRH variations of 51% were calculated between the primary GW04 results (0.27mg/L for

three different TRH fractions) and intra‐laboratory duplicate (QW2 – 0.16mg/L); and A 1,1‐dichloroethene (1,1 DCE) variation of 67% calculated between the primary GW08 result

(0.001mg/L) and intra‐laboratory duplicate (QW3 – 0.002mg/L).

The variations are not considered overly significant due to the low concentrations reported. Higher variations can be expected for samples with low analyte concentrations, such as the case with 1,1 DCE, as detailed in the NEPM.

A table summarising the field duplicate results for the investigation is presented with the groundwater result summary tables attached to this report.


June 2015

7.2.2 Soil Vapour Analyses

Field duplicate samples were collected and analysed at the primary and secondary laboratories during the April 2015 sampling event (using the summa and thermal desorption sampling methods). A summary of the field duplicate samples collected are summarised in Table 10.

Table 10 –Field Duplicate Samples

Date Soil Vapour Point Duplicate Sample Collected Laboratory Analyses

Summa Canister Duplicates

21 April 2015 SGP18_1.5 QV01 – intra‐laboratory

duplicate (EnviroLab) TO‐15 Suite* & TRH

SGP18_2.5 QV02 – inter‐laboratory duplicate (ALS) TO‐15 Suite^ & TRH







Thermal Desorption Duplicates

22 April 2015 SGP04_1.5 SQV05 – intra‐laboratory


SGP04_1.5 SQV06 – inter‐laboratory duplicate (SGS) TO‐17 Suite# & TRH

Notes: * ‐ comprises a suite of 62 volatile compounds ^ ‐ comprises a suite of 83 volatile compounds # ‐ comprises a suite of 56 volatile compounds

The majority of comparable inter and intra laboratory duplicate soil vapour analyses had relative percentage difference (RPD) values below the recommended comparison criteria of 50%. However, a number of volatile compound (2‐propanol, ethanol, TRH, toluene and TCE) variations were calculated ranging between 58% and 194% between the primary and secondary laboratories.

The 2‐propanol variations ranged from 60% to 172%, however these are not considered overly significant in terms of the investigation as these compounds relate to the tracer compound (isopropyl alcohol) used during the sampling process.

The ethanol variation was calculated at 194% between the primary sample SGP05_1.5 (<0.002mg/m3) and duplicate sample QV03 (0.13 mg/m3). This variation is not considered to be significant due to the relatively low concentrations reported as higher variations can be expected for samples with low analyte concentrations. Furthermore, it is not uncommon for larger variations to be observed when analysing organic compounds.

The TRH (C6‐C10 and C10‐C16 fractions) and toluene variations were calculated to range between 58% and 158% between the primary sample and duplicate samples. These are not considered overly significant in terms of the investigation as none of reported concentrations from the primary or duplicate samples tested exceed the adopted criteria, nor is it uncommon for larger variations to be observed when analysing organic compounds.


June 2015

The TCE variation was calculated at 158% between the primary duplicate sample SGP05 (<0.075mg/m3) and the inter‐laboratory duplicate sample QV04 (0.63mg/m3). The reason for this variation is unknown, however the majority of RPD variations for other analytes of interest (such as PCE) for this duplicate sample are within the recommended RPD comparison criteria of 50%.

A table summarising the field duplicate results for the investigation is presented as an attachment to this report (with soil vapour result summary tables).

7.2.3 Crawl Space and Outdoor Air Analyses

Field duplicate samples were collected and analysed at the primary and secondary laboratories during the April 2015 sampling event (using the summa canister and Radiello sampling methods). A summary of the field duplicate samples collected are summarised in Table 11.

Table 11 –Field Duplicate Samples

Date Monitoring Point Duplicate Sample Collected Laboratory Analyses

Summa Canister Duplicates (Crawl Space)

23 – 24 April 2015 Room 1

QA1 – intra‐laboratory duplicate (EnviroLab) TO‐15 Suite* & TRH

QA2 – inter‐laboratory duplicate (ALS) TO‐15 Suite^ & TRH

Radiello Cartridge Duplicates (Outdoor Air)

20 – 27 April 2015 Canopy

QA1 – intra‐laboratory duplicate (SGS) VOC# & TRH

QA2 – inter‐laboratory duplicate (ALS) VOC^^ & TRH

Notes: * ‐ comprises a suite of 62 volatile compounds ^ ‐ comprises a suite of 83 volatile compounds # ‐ comprises a suite of 47 volatile compounds ^^ ‐ comprises a suite of 63 volatile compounds

The majority of comparable inter and intra laboratory duplicate crawl space analyses had relative percentage difference (RPD) values below the recommended comparison criteria of 50%. However, 2‐propanol and ethanol variations (120% and 53% respectively) were reported between the primary and duplicate samples. These variations are not considered overly significant in terms of the investigation as higher variations can be expected for samples with low analyte concentrations (ranging between 0.018mg/m3 and 0.22mg/m3). It is further noted that the 2‐propanol concentrations relate to the tracer compound (isopropyl alcohol) used during the sampling process.

All comparable inter and intra laboratory duplicate outdoor air analyses had RPD values were below the recommended comparison criteria of 50%.

Tables summarising the field duplicate results for the crawl space and outdoor air investigation are presented as attachments to this report (with result summary tables).

7.3 Soil Vapour Leak Testing

As discussed in Section 5.0, prior to the soil vapour sampling taking place, leak testing was undertaken on each sampling point to ensure that vapour samples were representative of the targeted soil depth being sampled and that ambient air was not being drawn into the vapour well. Two methods of leak testing (helium and isopropanol) were undertaken as discussed in sections 7.3.1 and 7.3.2.


June 2015

7.3.1 Helium Leak Test

The helium leak test methodology adopted comprised adding helium to a shroud (which overlies the soil vapour point) and the concentration was measured using a GasCheck 5000 handheld helium detector. Soil vapour was then drawn from the vapour point and a real‐time helium concentration was measured. A comparison was then made between the shroud concentrations and measured vapour point concentration to ensure the difference in concentration was less than the recommended difference of 10%.

The measured helium concentrations detected within all soil vapour points sampled (with the exception of soil vapour point SGP01_0.5) were less than 10% of the measured shroud concentration indicating the integrity of all soil vapour points are generally sound using the helium leak test method (refer Appendix G for sampling records).

The percentage difference measured between the shroud sample and SGP01_0.5 sample collected (100%) indicates there was a breach of ambient air into the vapour well indicating the construction of the vapour point has likely been compromised. Analysis was therefore not undertaken at this sampling location during the April 2015 sampling event.

7.3.2 Isopropanol Leak Test

Isopropyl alcohol leak tests were also undertaken on two selected soil vapour points (SGP09 and SGP10) across the investigation area which comprised collecting and analysing a carbon tube sample to determine an isopropanol concentration within a shroud overlying the soil vapour point. Shroud concentrations were reported to range between 500,000µg/m3 (collected on 22 April 2015) and 2,200,000µg/m3 (collected on 23 April 2015). Isopropanol concentrations were then reported by the analytical laboratories (within the summa canisters and thermal desorption tubes) and a comparison was then made to ensure the difference in concentration was less than the recommended difference of 10%. All results have indicated the generally sound nature of each vapour point as no difference was calculated to be more than 3%.

7.4 Blank Samples

7.4.1 Groundwater

Rinsate blank (RB), field blank (FB) and trip blank (TB) samples were collected during the groundwater sampling events and analysed at the primary laboratory. Rinsate samples were collected from clean sampling equipment while the trip blank samples were a laboratory supplied sample (placed in the eksy prior to sampling) and the field blank samples comprised placing a laboratory supplied bottle (filled with laboratory supplied deionised water) open to the air over the duration of the sampling event. A summary of the blank sample testing is summarised in Table 12 below.

Table 12 – Blank sample Analyses

Date Sample Blanks Analyses

16 April 2015 RB1, TB1 and FB1 VHC

20 April 2015 RB2, TB2 and FB2 VHC

21 April 2015 FB3, TB3 VHC

22 April 2015 FB4, TB4 VHC

All reported concentrations were below laboratory reporting limits indicating that decontamination procedures were acceptable, cross contamination between samples and sampling equipment did not occur and there was no introduction of volatiles into the samples.

7.4.2 Soil Vapour

Laboratory supplied trip blank and trip spike samples (supplied by the primary laboratory EnviroLab) were analysed by the laboratory to ensure no cross contamination occurred during sample transport from and back to the laboratory. No elevated results were reported above the laboratory detection limits which


June 2015

indicates no cross contamination occurred during sample transport. Results are shown in the laboratory reports attached as Appendix H.

7.5 Data Quality Conclusions

The internal QC procedures reported by the laboratories, field duplicate and blank analyses, and leak testing undertaken, indicate the analytical data is of acceptable quality for the purposes of this investigation.


June 2015

8.0 CONCLUSIONS

Groundwater Investigation Previous environmental assessment works conducted at the site identified heavy metal, fuel related and volatile chlorinated hydrocarbon groundwater impacts. The volatile chlorinated hydrocarbon impacts were reported to be an order of magnitude higher than the adopted guideline levels and were shown to migrate offsite to the north west (along the inferred hydraulic gradient) and into the secondary quaternary aquifer. Additional work was undertaken in 2014 with the aim of determining the extent of groundwater impacts within the Q1 aquifer only, with particular emphasis placed on the previously reported chlorinated hydrocarbon impacts. Additional groundwater wells were installed and sampled offsite (along the inferred hydraulic gradient) and reported chlorinated hydrocarbon results indicated that the extent of the TCE and PCE impacts were not delineated to the north west of the site (along the inferred hydraulic gradient).

The most recent groundwater investigation conducted was again focused on delineating the extent of the chlorinated impacts offsite to the north west along the inferred hydraulic gradient. A total of five additional groundwater wells were installed offsite and the entire well network was sampled. Reported chlorinated hydrocarbon results indicate that the extent of the TCE and PCE impacts has not been delineated to the north west of the site (along the inferred hydraulic gradient).

Aquifer permeability tests (slug tests) were also conducted on three selected offsite wells and it was estimated that the average groundwater flow velocity within the Q1 aquifer was approximately 20m/year.

Soil Vapour Investigation Previous investigations indicate that the elevated volatile chlorinated concentrations reported in soils and groundwater below the site may result in vapour accumulation within site structures at the site which may in turn present an unacceptable human health risk to site personnel in the current commercial site operations. An investigation undertaken across the site and surrounding residential properties in 2014 indicated that elevated chlorinated impacts were reported above the adopted guidelines from 12 of 13 soil vapour points installed both onsite and offsite.

The most recent soil vapour investigation comprised the installation of an additional eight soil vapour points (including three nested locations) offsite (within the residential neighbourhood) with the aim of determining the extent of the chlorinated hydrocarbon soil vapour impacts. A total of twenty soil vapour points were sampled in April 2015 using summa canisters (twelve existing points and eight additional points). Five selected locations were also sampled using thermal desorption tubes for comparison purposes.

Elevated soil vapour results were reported for chlorinated hydrocarbon compounds cis‐1,2‐dichloroethene, TCE and PCE above the adopted NEPM Interim Soil Vapour HILs for commercial/industrial and residential land uses at the majority of locations. Thermal desorption sample concentrations were shown to be consistently higher compared to the summa canister sample concentrations at the five locations where both sampling methods were undertaken.

Soil vapour results indicate the extent of the impacts has not been delineated, with only six offsite soil vapour points reporting results below the adopted criteria (primarily to the south of the site).

Crawl Space and Outdoor Air Investigation Crawl space sampling was undertaken at three locations within the residence located adjacent the drycleaners site (35 Cliff Street) in April 2015 using summa canisters. Detectable concentrations of DCE, TCE, PCE and toluene were reported from one or more locations.

A property survey was undertaken across the investigation area which indicated that the majority of the properties surrounding the site were noted to likely have timber framed floors and crawl spaces (based on an inspection from the footpath only).

An outdoor air investigation was also undertaken at three locations across the site using Radiello adsorbent cartridges which were exposed to ambient air over a one week period. A number of detectable volatile compound concentrations were reported from the three primary samples submitted for analysis; however no discernible contaminant concentration pattern was identified across the three locations.


June 2015

9.0 LIMITATIONS OF THIS REPORT

This environmental site assessment report has been prepared in accordance with industry recognised standards and procedures at the time of the work. The report presents the results of the assessment based on the quoted scope of works (unless otherwise agreed in writing) for the specific purposes of the commission. No warranties expressed or implied are offered to any third parties and no liability will be accepted for use of this report by any third parties.

Information provided by third parties has been assumed to be correct and complete. Greencap does not assume any liability for misrepresentation of information by third parties or for matters not visible, accessible or present on the subject property during any site inspections conducted during the time of the work.

The first stage in the site assessment process generally involves site history research and/or a site inspection. This stage is intended to establish whether there is a likelihood of site contamination. Depending on the location of the site and surrounding land use, there could be contamination present which could not have been identified by preliminary investigation of this nature ‐ for example, if there had been dumping of waste liquids which has left no visual evidence and past owners were not aware of. If recommendations have been made on whether or not to conduct further investigation, these have been based on the likelihood of site contamination, and are generally based on the sensitivity of the proposed future use of the site. A more conservative approach is generally adopted for a sensitive future use such as residential or a child care centre. Subsequent stages of soil or groundwater investigation may follow. The site assessment process is often ongoing, with additional stages of investigation being required to resolve issues raised in previous stages of the investigation. In cases where sampling and analysis of soil and/or groundwater has been conducted, then the following standard limitations apply:‐

The results presented in the report apply only to the specific locations and the time the sampling was conducted. The nature and extent of contaminants present on a site can change due to physical disturbance or removal, chemical or biological transformation, or due to the migration of the contaminants to different areas.

The borehole or test pit logs indicate the approximate subsurface conditions only at the specified test locations. Soil and rock formations are variable, and conditions in areas not sampled may differ from those at the actual sampling locations due to natural subsurface variation.

The precision with which subsurface conditions are indicated depends largely on the frequency and method of sampling and investigation, and the degree of subsurface variation. There can be no complete guarantee that contaminants are not present at significant concentrations in some areas, even with the most thorough site assessment.

Any conclusions or recommendations are based solely on the land use assumptions stated in the report. These conclusions or recommendations do not apply to any other land use for the site.

This report should be read in full. No responsibility is accepted for use of any part of this report in any other context or for any other purpose or by third parties. Opinions and judgements expressed herein are based on Greencap’s understanding of current regulatory standards and should not be construed as legal opinions.


June 2015


FIGURES

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East XXX

! (

! (

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GW16

GW17

GW19

GW20

GW22

GW21

GW23

Legend ! ( Existing Groundwater Well Location

Site Boundary

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GW03

GW10

GW02

GW14

GW09

GW13

GW05 GW01

GW07

DC01

GW04

GW06

GW08

GW15

GW12 GW11

GW18

Project: Environmental Site Assessment

50 10 20 30 40 Meters

1:850

Coordinate System: GDA 1994 MGA Zone 54

SCALE (at A3)

Aerial image sourced from nearmap

FIGURE A - GROUNDWATER WELL LOCATIONS Location: 37-41 Cliff Street, Glenelg East, SA

Job Ref: J125792 Drawn: ER Checked: AD Date: June 2015 12 Greenhill Road Wayville SA 5034 PO Box 582 Unley SA 5061 (08) 8299 9955 www.greencap.com.au Note: All data is approx only & subject to survey

! (

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4

3.95

3.9

GW19

GW22

GW21


Site Boundary

Groundwater Contours (mAHD)

Inferred Groundwater Flow Direction

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4.25

4.2

4.15

4.1

4.05

GW16

GW17

GW20

GW23

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4.4

4.35

4.3

4.54.

45

GW03

GW10

GW02

GW14

GW09

GW13

GW05 GW01

GW07

DC01

GW04

GW06

GW08

GW15

GW12 GW11

GW18


50 9.5 19 28.5 38 Meters

1:850


SCALE (at A3)


FIGURE B -INFERRED GROUNDWATER FLOW DIRECTION Location: 37-41 Cliff Street, Glenelg East, SA

Job Ref: J125792 Drawn: MM Checked: SW Date: June 2015 12 Greenhill Road Wayville SA 5034 PO Box 582 Unley SA 5061 (08) 8299 9955 www.greencap.com.au Note: All data is approx only & subject to survey

! (

SGP17

Legend ! ( Existing Vapour Point Location

! ( Nested Vapour Point Location

Site Boundary

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SGP06

SGP08

SGP07

SGP02

SGP10 SGP04

SGP12

SGP09

SGP13 (nested)

SGP01 (nested)

SGP05 (nested)

SGP11 (nested)

SGP03

SGP14

SGP15

SGP20 (nested)

SGP21

SGP18 (nested)

SGP19 (nested)

SGP16


50 10 20 30 40 Meters

1:950


SCALE (at A3)


FIGURE C - SOIL VAPOUR POINT LOCATIONS Location: 37-41 Cliff Street, Glenelg East, SA

Job Ref: J125792 Drawn: MM Checked: AD Date: June 2015 12 Greenhill Road Wayville SA 5034 PO Box 582 Unley SA 5061 (08) 8299 9955 www.greencap.com.au Note: All data is approx only & subject to survey

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GW23 0.001

GW03 <0.001

GW10 <0.001

GW02 0.002

GW14 <0.001 GW05

<0.001 GW01 <0.001

GW07 <0.001

GW06 0.006

GW12 0.005

GW11 0.002

GW16 0.019

GW17 0.019

GW18 0.008

GW20 <0.001

GW21 0.005

GW09 0.04

GW13 0.5 GW04

0.085

GW08 0.39

GW15 0.095

GW19 0.037

GW22 0.034


! ( Result Greater Than Adopted Guidelines (0.03 mg/L)

Site Boundary

Inferred Trichloroethene Plume (Other Interpretations May Be Possible)

Adopted Guidelines: ANZECC/ARMCANZ (2000) Recreation

Project: Environmental Site Assessment SCALE (at A3) 1:950 FIGURE D - TCE CONCENTRATION

Location: 37-41 Cliff Street, Glenelg East, SA SUMMARY PLAN 0 10 20 30 40 5 12 Greenhill Road Wayville SA 5034Meters Job Ref: J125792 Drawn: MM Checked: AD Date: June 2015 PO Box 582 Unley SA 5061Coordinate System: GDA 1994 MGA Zone 54(08) 8299 9955Aerial image sourced from nearmap Note: All data is approx only & subject to survey www.greencap.com.au

www.greencap.com.au

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GW23 0.14

GW03 0.002

GW10 0.002

GW02 0.001

GW14 0.004 GW05

0.015 GW01 0.077

GW07 0.007

GW06 0.6

GW12 0.54

GW11 0.23

GW16 0.011

GW17 0.049

GW18 0.005

GW20 <0.001

GW21 0.14

GW09 0.16

GW13 0.19 GW04

0.15

GW08 0.31

GW15 0.074

GW19 0.078

GW22 0.5


! ( Result Greater Than Adopted Guidelines (0.01 mg/L)

Site Boundary

Inferred Tetrachloroethene Plume (Other Interpretations May Be Possible)

Adopted Guidelines: ANZECC/ARMCANZ (2000) Recreation

Project: Environmental Site Assessment SCALE (at A3) 1:950 FIGURE E - PCE CONCENTRATION

Location: 37-41 Cliff Street, Glenelg East, SA SUMMARY PLAN 0 10 20 30 40 5 12 Greenhill Road Wayville SA 5034Meters Job Ref: J125792 Drawn: MM Checked: AD Date: June 2015 PO Box 582 Unley SA 5061Coordinate System: GDA 1994 MGA Zone 54(08) 8299 9955Aerial image sourced from nearmap Note: All data is approx only & subject to survey www.greencap.com.au

www.greencap.com.au

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SGP06

SGP08

SGP07

SGP02

SGP10 SGP04

SGP12

SGP09

SGP13 (nested)

SGP01 (nested)

SGP05 (nested)

SGP11 (nested)

SGP03

SGP14

SGP17

SGP15

SGP20 (nested)

SGP21

SGP18 (nested)

SGP19 (nested)

SGP16

12 Greenhill Road Wayville SA 5034PO Box 582 Unley SA 5061(08) 8299 9955www.greencap.com.au

Job Ref: J125792

Project: Environmental Site AssessmentLocation: 37-41 Cliff Street, Glenelg East, SA

Drawn: MM Checked: AD

FIGURE F - SOIL VAPOURCONCENTRATION SUMMARY PLAN50 10 20 30 40MetersDate: June 2015

1:950


SCALE (at A3)

Note: All data is approx only & subject to survey Aerial image sourced from nearmap

Legend! ( Existing Vapour Point Location! ( Nested Vapour Point Location

Site Boundary

Note:All Results in µg/m3

PCE = TetrachloroetheneTCE = Trichloroethene

Depth (m) PCE TCE1.5 1600 130

SGP08

Depth (m) PCE TCE1.5 21000 <75

SGP07

Depth (m) PCE TCE1.5 3.7 <2.72.5 16 <2.7

SGP20


SGP21

Depth (m) PCE TCE1.5 <3.4 2.72.5 <34 <2.7

SGP13

Depth (m) PCE TCE1.5 36 <2.7

SGP06Depth (m) PCE TCE1.5 1900 9.22.5 3100 <2.7

SGP18

Depth (m) PCE TCE1.5 15000 <75

SGP03

Depth (m) PCE TCE1.5 120 422.5 2600 2200

SGP11


SGP12

Depth (m) PCE TCE1.5 21 3.4

SGP15


SGP04

Depth (m) PCE TCE1.5 140000 12000

SGP01


SGP10


SGP09


SGP14


SGP17


SGP16

Depth (m) PCE TCE1.5 18000 282.5 29000 52

SGP19

Depth (m) PCE TCE1.5 17000 1302.5 42000 <75

SGP05

www.greencap.com.au

June 2015


RESULTS SUMMARY TABLES – GROUNDWATER

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East XXXI

Groundwater Investigation Results, 37-41 Cliff Street, Glenelg East, April 2015 Greencap Job Ref: J125792

Groundwater Investigation Results, 37‐41 Cliff Street, Glenelg East,

April 2015

Chlorinated Hydrocarbons

1,1,1,2‐tetrachloroethan

e

1,1,1‐trichloroethan

e

1,1,2,2‐tetrachloroethan

e

1,1,2‐trichloroethan

e

1,1‐dichloroethan

e

1,1‐dichloroethene

1,1‐dichloropropene

1,2,3‐trichloropropan

e

1,2‐dibromo‐3‐chloropropan

e

1,2‐dichloroethan

e

1,2‐Dichloroethene

1,2‐dichloropropan

e


e


e

Benzyl chloride

Bromochloromethan

e

Bromodichloromethan

e

Bromoform

Carbon

tetrachloride

Chlorodibromomethan

e

Chloroethan

e

Chloroform

Chloromethan

e

cis‐1,2‐dichloroethene

cis‐1,3‐dichloropropene

Dibromomethan

e

Dichloromethan

e

Hexachlorobutadiene

Trichloroethene

Tetrachloroethene

tran

s‐1,2‐dichloroethene

tran

s‐1,3‐dichloropropene

Vinyl

chloride

µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L mg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L EQL 1 0.1 1 1 0.01 0.1 1 0.01 0.1 1 0.1 0.1 0.05 0.1 0.1 1 0.01 0.1 1 0.02 0.01 0.02 0.1 0.1 0.05

NEPM 2013 GILs, Marine Waters(A) 1900

NEPM 2013 HSL for Vapour Intrusion (Residential) 2‐4m CLAY*

NEPM 2013 HSL for Vapour Intrusion (Commercial) 2‐4m CLAY*

SA Water Quality, 2003, Ag, Irrigation

SA Water Quality, 2003, Aquaculture

ANZECC/ARMCANZ (2000) Recreation 0.3 10 3 30 10

SA Water Quality, 2003, Aquatic, Marine

Well ID Field ID Sampling Date

GW1 GW1 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ <1 77 <1 <1 <0.05

GW2 GW2 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ 2 1 <1 <1 <0.05

GW3 GW3 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ <1 2 <1 <1 <0.05

GW4

GW4 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 120 <1 <1 <1 ‐ 85 150 <1 <1 <1

QW1 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 120 <1 <1 <1 ‐ 87 160 <1 <1 <1

QW2 20/04/2015 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 ‐ <1 <1 <1 ‐ <1 <1 <1 <1 <1 <10 <1 <10 95 <2 <1 ‐ <0.7 68 104 <1 <2 <0.3

GW5 GW5 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ <1 15 <1 <1 <0.05

GW6 GW6 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 2 <1 <1 <1 ‐ 6 600 <1 <1 <1

GW7 GW7 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ <1 7 <1 <1 <0.05

GW8

GW8 20/04/2015 <1 <1 <1 <1 <1 1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 860 <1 <1 <1 ‐ 390 310 <1 <1 <1

QW3 20/04/2015 <1 <1 <1 <1 <1 2 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 910 <1 <1 <1 ‐ 410 310 <1 <1 <1

QW4 21/04/2015 <1 <1 <1 <1 <1 1 <1 <1 <1 <1 ‐ <1 <1 <1 ‐ <1 <1 <1 <1 <1 <10 <1 <10 1240 <2 <1 ‐ <0.7 617 420 <1 <2 <0.3

GW9 GW9 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 67 <1 <1 <1 ‐ 40 160 <1 <1 <1

GW10 GW10 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 1 <1 <1 <1 ‐ <1 2 <1 <1 <1 ‐ 0.18

GW11 GW11 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ 2 230 <1 <1 <1

GW12 GW12 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 1 <1 <1 <1 ‐ 5 540 <1 <1 <1

GW13 GW13 20/04/2015 <1 <1 <1 <1 <1 3 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 1100 <1 <1 <1 ‐ 500 190 <1 <1 <1

GW14 GW14 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ <1 4 <1 <1 <0.05

GW15 GW15 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 320 <1 <1 <1 ‐ 95 74 <1 <1 <1

GW16 GW16 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 63 <1 <1 <1 ‐ 19 11 <1 <1 <0.05

GW17 GW17 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 190 <1 <1 <1 ‐ 19 49 <1 <1 <1

GW18 GW18 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 9 <1 <1 <1 ‐ 8 5 <1 <1 <0.05

GW19 GW19 16/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 130 <1 <1 <1 ‐ 37 73 <1 <1 <1

GW20 GW20 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ <1 <1 <1 <1 <0.05

GW21 GW21 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 1 <1 <1 <1 ‐ 5 140 2 <1 <1

GW22 GW22 16/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 98 <1 <1 <1 ‐ 34 500 <1 <1 <1

GW23 GW23 20/04/2015 <1 <1 <1 <1 <1 <1 ‐ <1 ‐ <1 ‐ <1 <1 ‐ ‐ ‐ <1 <1 <1 <1 ‐ <5 <1 <1 <1 <1 <1 ‐ 1 140 <1 <1 <1

Notes: * ‐ Results compared to health screening level criteria for a CLAY soil type (based on field observations during well installation)

NL ‐ No Limit

1 of 3



April 2015

TPH (NEPM 199 Fractions) TRH (NEPM 2013 Fractions) BTEX PAH/Phenols

C6 ‐C9

C10 ‐C14

C15 ‐C28

C29‐C36

+C10 ‐C36

(Sum

of total)

C6‐C10

C6‐C10

less

BTEX

(F1)

TRH

>C10‐C16

TRH

>C10‐C16

less

Nap

hthalene

(F2)

TRH

>C16‐C34

TRH

>C34‐C40

C10 ‐C40

(Sum

of total)

Benzene

Ethylbenzene

Toluene

Xylene

(m &

p)

Xylene

(o)

Xylene

Total

Total B

TEX

Nap

hthalene

µg/L µg/L µg/L µg/L µg/L mg/L mg/L mg/L mg/L mg/L mg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L mg/L µg/L EQL 20 50 100 50 50 0.02 0.02 0.05 0.05 0.1 0.1 1 1 1 2 1 2 5

NEPM 2013 GILs, Marine Waters(A) 500 50

NEPM 2013 HSL for Vapour Intrusion (Residential) 2‐4m CLAY* 5000

NEPM 2013 HSL for Vapour Intrusion (Commercial) 2‐4m CLAY* NL NL 30,000 NL NL NL NL

SA Water Quality, 2003, Ag, Irrigation

SA Water Quality, 2003, Aquaculture 40

ANZECC/ARMCANZ (2000) Recreation 10

SA Water Quality, 2003, Aquatic, Marine 300


GW1 GW1 20/04/2015 60 <50 <100 <100 <100 0.06 0.06 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW2 GW2 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW3 GW3 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW4

GW4 20/04/2015 270 <50 <100 <100 <100 0.27 0.27 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

QW1 20/04/2015 280 <50 <100 <100 <100 0.28 0.28 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

QW2 20/04/2015 160 <50 <100 <50 <50 0.16 0.16 <0.1 <0.1 <0.1 <0.1 <100 <1 <2 <2 <2 <2 <2 <0.001 <5

GW5 GW5 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW6 GW6 20/04/2015 580 <50 <100 <100 <100 0.58 0.58 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW7 GW7 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW8

GW8 20/04/2015 1400 <50 <100 <100 <100 1.4 1.4 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

QW3 20/04/2015 1400 <50 <100 <100 <100 1.4 1.4 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

QW4 21/04/2015 1120 <50 <100 <50 <50 1.08 1.08 <0.1 <0.1 <0.1 <0.1 <100 <1 <2 <2 <2 <2 <2 <0.001 <5

GW9 GW9 20/04/2015 230 <50 <100 <100 <100 0.23 0.23 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW10 GW10 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW11 GW11 20/04/2015 230 <50 <100 <100 <100 0.23 0.23 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW12 GW12 20/04/2015 560 <50 <100 <100 <100 0.56 0.56 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW13 GW13 20/04/2015 1500 <50 <100 <100 <100 1.5 1.5 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW14 GW14 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW15 GW15 20/04/2015 340 <50 <100 <100 <100 0.34 0.34 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW16 GW16 20/04/2015 70 <50 <100 <100 <100 0.07 0.07 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW17 GW17 20/04/2015 180 <50 <100 <100 <100 0.18 0.18 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW18 GW18 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW19 GW19 16/04/2015 170 <50 <100 <100 <100 0.17 0.17 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW20 GW20 20/04/2015 <20 <50 <100 <100 <100 <0.02 <0.02 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW21 GW21 20/04/2015 160 <50 <100 <100 <100 0.16 0.16 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW22 GW22 16/04/2015 470 <50 <100 <100 <100 0.47 0.47 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20

GW23 GW23 20/04/2015 140 <50 <100 <100 <100 0.14 0.14 <0.05 <0.05 <0.1 <0.1 ‐ <1 <1 <1 <2 <1 <3 ‐ <20


NL ‐ No Limit

2 of 3



April 2015

VOCs Halogenated Benzenes Halogenated Hydrocarbons Inorganics Organic Metals

cis‐1,4‐Dichloro‐2‐butene

Pentachloroethan

e

Trihalomethan

es

tran

s‐1,4‐Dichloro‐2‐butene



1,2‐dichlorobenzene



2‐chlorotoluene

4‐chlorotoluene

Bromobenzene

Chlorobenzene

Trichlorobenzene

(total)

1,2‐dibromoethan

e

Bromomethan

e

Dichlorodifluoromethan

e

Iodomethan

e

Trichlorofluoromethan

e

Alkalinity (Hydroxide) a

s CaC

O3

Alkalinity (total)

as C

aCO3

Ammonia

as N

Anions T

otal

Alkalinity (Bicarbonate

as C

aCO3)

Alkalinity (Carbonate

as C

aCO3)

Cations T

otal

Chloride

Ferrous Iron

Ionic

Balan

ce

Nitrate

(as N

)

Nitrite

(as N

)

Nitrogen

(Total O

xidised)

Sodium

Sodium

(Filtered)

Sulphate

(Filtered)

Sulphate

as S

Sulphite

as S

O3‐

TDS

Sulphite

as S

Methan

e

Calcium

Ferric

Iron

Iron

(Filtered)

Magnesium

Man

ganese

(Filtered)

Potassium

µg/L µg/L mg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L mg/L µg/L µg/L µg/L µg/L µg/L µg/L mg/L µg/L meq/L mg/L mg/L meq/L mg/L mg/L % mg/L mg/L mg/L mg/L mg/L mg/L mg/L µg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L EQL 0.1 0.1 0.01 0.01 0.1 0.5 1 0.5 10 1 1 1 0.05 0.01 0.01 0.5 5 1 0.5 0.01 0.5 0.05 0.05 0.5 0.001 0.5

NEPM 2013 GILs, Marine Waters(A) 20

NEPM 2013 HSL for Vapour Intrusion (Residential) 2‐4m CLAY*

NEPM 2013 HSL for Vapour Intrusion (Commercial) 2‐4m CLAY*

SA Water Quality, 2003, Ag, Irrigation 1 2

SA Water Quality, 2003, Aquaculture 0.1

ANZECC/ARMCANZ (2000) Recreation 10 400 10 1 300 1000 0.3 0.1

SA Water Quality, 2003, Aquatic, Marine 200 0.2


GW1 GW1 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 540 <10 ‐ 1100 <0.05 ‐ 5.6 <0.02 ‐ 460 ‐ ‐ 58 ‐ 3000 <0.5 <0.05 200 <0.05 <0.05 140 <0.005 6.5

GW2 GW2 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 570 <10 ‐ 980 <0.05 ‐ 4.8 0.12 ‐ 380 ‐ ‐ 71 ‐ 3000 <0.5 <0.05 200 <0.05 <0.05 160 2.6 6.5

GW3 GW3 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 500 <10 ‐ 1200 <0.05 ‐ 7.1 <0.02 ‐ 450 ‐ ‐ 67 ‐ 3700 <0.5 <0.05 210 <0.05 <0.05 180 <0.005 7.3

GW4

GW4 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 530 <10 ‐ 1200 <0.05 ‐ 4 <0.02 ‐ 470 ‐ ‐ 58 ‐ 2800 <0.5 <0.05 220 <0.05 <0.05 150 0.27 7.1

QW1 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 550 <10 ‐ 1100 <0.05 ‐ 4 <0.02 ‐ 420 ‐ ‐ 59 ‐ 3800 <0.5 <0.05 230 <0.05 <0.05 150 0.27 7.2

QW2 20/04/2015 <1 <1 <0.001 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 ‐ <1 <10 <10 <1 <10 <1000 489 10 45.3 489 <1 42.9 1120 <0.05 2.77 4.35 0.02 4.37 ‐ 436 191 ‐ <2000 2940 ‐ <0.01 216 <0.05 <0.05 157 0.236 9

GW5 GW5 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 1100 <0.05 ‐ 5.9 <0.02 ‐ 450 ‐ ‐ 59 ‐ 2900 <0.5 <0.05 200 <0.05 <0.05 140 <0.005 6.2

GW6 GW6 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 1200 <0.05 ‐ 5 <0.02 ‐ 480 ‐ ‐ 60 ‐ 3100 <0.5 <0.05 210 <0.05 <0.05 150 <0.005 5.5

GW7 GW7 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 980 <0.05 ‐ 6.5 <0.02 ‐ 380 ‐ ‐ 64 ‐ 3100 <0.5 <0.05 190 <0.05 <0.05 150 <0.005 7.2

GW8

GW8 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 550 <10 ‐ 1000 <0.05 ‐ 3.7 0.02 ‐ 400 ‐ ‐ 61 ‐ 3200 <0.5 <0.05 200 <0.05 <0.05 160 <0.005 7.4

QW3 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 500 <10 ‐ 1200 <0.05 ‐ 3.7 0.02 ‐ 430 ‐ ‐ 62 ‐ 3400 <0.5 <0.05 210 <0.05 <0.05 170 <0.005 8.5

QW4 21/04/2015 <1 <1 <0.001 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 ‐ <1 <10 <10 <1 <10 <1000 529 <10 47 529 <1 43.6 1150 <0.05 3.68 3.25 <0.01 3.25 ‐ 436 190 ‐ <2000 3040 ‐ <0.01 211 0.06 0.06 169 0.008 9

GW9 GW9 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 550 <10 ‐ 1200 <0.05 ‐ 3.4 <0.02 ‐ 500 ‐ ‐ 62 ‐ 3000 <0.5 <0.05 200 <0.05 <0.05 150 <0.005 5.9

GW10 GW10 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 1100 <0.05 ‐ 6.2 0.06 ‐ 430 ‐ ‐ 70 ‐ 3600 <0.5 <0.05 200 <0.05 <0.05 160 0.99 6.7

GW11 GW11 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 510 <10 ‐ 1000 <0.05 ‐ 5.8 <0.02 ‐ 390 ‐ ‐ 64 ‐ 3100 <0.5 <0.05 210 <0.05 <0.05 160 0.009 7.2

GW12 GW12 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 1000 <0.05 ‐ 6.2 <0.02 ‐ 400 ‐ ‐ 64 ‐ 3300 <0.5 <0.05 210 <0.05 <0.05 160 <0.005 7.3

GW13 GW13 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 580 <10 ‐ 1200 <0.05 ‐ 3.3 <0.02 ‐ 480 ‐ ‐ 57 ‐ 2900 <0.5 <0.05 210 <0.05 <0.05 160 0.05 5.8

GW14 GW14 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 530 <10 ‐ 1000 <0.05 ‐ 6.5 <0.02 ‐ 390 ‐ ‐ 64 ‐ 3700 <0.5 <0.05 200 <0.05 <0.05 160 <0.005 8.9

GW15 GW15 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ 960 ‐ 560 <10 ‐ 1100 <0.05 ‐ 4.3 <0.02 ‐ 450 ‐ ‐ 64 ‐ 2900 <0.5 <0.05 200 <0.05 <0.05 150 <0.005 9.4

GW16 GW16 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 1000 <0.05 ‐ 5.1 0.04 ‐ 390 ‐ ‐ 59 ‐ 3500 <0.5 <0.05 180 <0.05 <0.05 150 0.01 8.5

GW17 GW17 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ 150 ‐ 530 <10 ‐ 1200 <0.05 ‐ 3 <0.02 ‐ 490 ‐ ‐ 62 ‐ 3000 <0.5 <0.05 200 <0.05 <0.05 150 0.021 10

GW18 GW18 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ 120 ‐ 530 <10 ‐ 1200 <0.05 ‐ 4.7 <0.02 ‐ 500 ‐ ‐ 63 ‐ 3100 <0.5 <0.05 200 <0.05 <0.05 150 <0.005 9.5

GW19 GW19 16/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 550 <10 ‐ 870 <0.05 ‐ 4.8 0.03 ‐ 360 ‐ ‐ 51 ‐ 2400 <1 <0.05 180 <0.05 <0.05 130 <0.005 8.2

GW20 GW20 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 560 <10 ‐ 970 <0.05 ‐ 7 <0.02 ‐ 470 ‐ ‐ 54 ‐ 2500 <0.5 <0.05 140 <0.05 <0.05 130 0.01 5.9

GW21 GW21 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 540 <10 ‐ 1100 <0.05 ‐ 5.6 <0.02 ‐ 450 ‐ ‐ 66 ‐ 3100 <0.5 <0.05 200 <0.05 <0.05 150 0.007 8.5

GW22 GW22 16/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 520 <10 ‐ 1200 <0.05 ‐ 4.5 <0.02 ‐ 440 ‐ ‐ 59 ‐ 3300 <1 <0.05 230 <0.05 <0.05 170 0.005 9.4

GW23 GW23 20/04/2015 ‐ ‐ ‐ ‐ ‐ ‐ <1 <1 <1 ‐ ‐ ‐ <1 ‐ <1 <1 ‐ <1 <1 ‐ ‐ <10 ‐ 500 <10 ‐ 1000 <0.05 ‐ 6.6 0.03 ‐ 390 ‐ ‐ 73 ‐ 3300 <0.5 <0.05 200 <0.05 <0.05 160 <0.005 8.5


NL ‐ No Limit

3 of 3

Field Duplicate RPD Analysis, 37-41 Cliff Street, Glenelg East, April 2015 Greencap Job Ref: J125792

Field Duplicates (WATER)Filter: SDG in('454631','454285')

SDG Field_ID Sampled_Date-Time

454631 GW4

20/04/2015

454631 QW1 RPD

20/04/2015

454631 GW8

20/04/2015

454631 QW3 RPD

20/04/2015

454631 GW4

20/04/2015

Interlab_D QW2 RPD

20/04/2015

454631 GW8

20/04/2015

Interlab_D QW4 RPD

20/04/2015

Chem_Group ChemName Units EQL TRH >C10-C16 mg/l 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.1 0 TRH >C10-C16 less Naphthalene (F2) mg/l 0.05 (Primary): 0.1 (Interlab) <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.1 0 <0.05 <0.1 0 TRH >C16-C34 mg/l 0.1 <0.1 <0.1 0 <0.1 <0.1 0 <0.1 <0.1 0 <0.1 <0.1 0 TRH >C34-C40 mg/l 0.1 <0.1 <0.1 0 <0.1 <0.1 0 <0.1 <0.1 0 <0.1 <0.1 0

BTEX Benzene µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Ethylbenzene µg/l 1 (Primary): 2 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <2.0 0 <1.0 <2.0 0 Toluene µg/l 1 (Primary): 2 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <2.0 0 <1.0 <2.0 0 Xylene (m & p) µg/l 2 <2.0 <2.0 0 <2.0 <2.0 0 <2.0 <2.0 0 <2.0 <2.0 0 Xylene (o) µg/l 1 (Primary): 2 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <2.0 0 <1.0 <2.0 0 Xylene Total µg/l 3 (Primary): 2 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <3.0 <2.0 0 <3.0 <2.0 0 C6-C10 less BTEX (F1) mg/l 0.02 0.27 0.28 4 1.4 1.4 0 0.27 0.16 51 1.4 1.08 26

Chlorinated Hydrocarbons 1,1,1,2-tetrachloroethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,1,1-trichloroethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,1,2,2-tetrachloroethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,1,2-trichloroethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,1-dichloroethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,1-dichloroethene µg/l 1 <1.0 <1.0 0 1.0 2.0 67 <1.0 <1.0 0 1.0 1.0 0 1,2,3-trichloropropane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,2-dichloroethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,2-dichloropropane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,3-dichloropropane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Bromodichloromethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Bromoform µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Carbon tetrachloride µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Chlorodibromomethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Chloroform µg/l 5 (Primary): 1 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <5.0 <1.0 0 <5.0 <1.0 0 Chloromethane µg/l 1 (Primary): 10 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <10.0 0 <1.0 <10.0 0 cis-1,2-dichloroethene µg/l 1 120.0 120.0 0 860.0 910.0 6 120.0 95.0 23 860.0 1240.0 36 cis-1,3-dichloropropene µg/l 1 (Primary): 2 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <2.0 0 <1.0 <2.0 0 Dibromomethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Dichloromethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 - - <1.0 - -Trichloroethene µg/l 1 85.0 87.0 2 390.0 410.0 5 85.0 68.0 22 390.0 617.0 45 Tetrachloroethene µg/l 1 150.0 160.0 6 310.0 310.0 0 150.0 104.0 36 310.0 420.0 30 trans-1,2-dichloroethene µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 trans-1,3-dichloropropene µg/l 1 (Primary): 2 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <2.0 0 <1.0 <2.0 0 Vinyl chloride µg/l 1 (Primary): 0.3 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <0.3 0 <1.0 <0.3 0 Vinyl chloride µg/l 0.05 (Primary): 0.3 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <0.3 0 <1.0 <0.3 0

Halogenated Benzenes 1,2-dichlorobenzene µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,3-dichlorobenzene µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 1,4-dichlorobenzene µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Chlorobenzene µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0

Halogenated Hydrocarbons 1,2-dibromoethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Bromomethane µg/l 1 (Primary): 10 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <10.0 0 <1.0 <10.0 0 Iodomethane µg/l 1 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <1.0 0 Trichlorofluoromethane µg/l 1 (Primary): 10 (Interlab) <1.0 <1.0 0 <1.0 <1.0 0 <1.0 <10.0 0 <1.0 <10.0 0

Inorganics Ammonia as N µg/l 10 <10.0 <10.0 0 <10.0 <10.0 0 <10.0 10.0 0 <10.0 <10.0 0 Alkalinity (Bicarbonate as CaCO3) mg/l 20 (Primary): 1 (Interlab) 530.0 550.0 4 550.0 500.0 10 530.0 489.0 8 550.0 529.0 4 Alkalinity (Carbonate as CaCO3) mg/l 10 (Primary): 1 (Interlab) <10.0 <10.0 0 <10.0 <10.0 0 <10.0 <1.0 0 <10.0 <1.0 0 Chloride mg/l 1 1200.0 1100.0 9 1000.0 1200.0 18 1200.0 1120.0 7 1000.0 1150.0 14 Ferrous Iron mg/l 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 Nitrate (as N) mg/l 0.02 (Primary): 0.01 (Interlab) 4.0 4.0 0 3.7 3.7 0 4.0 4.35 8 3.7 3.25 13 Nitrite (as N) mg/l 0.02 (Primary): 0.01 (Interlab) <0.02 <0.02 0 0.02 0.02 0 <0.02 0.02 0 0.02 <0.01 0 Sodium mg/l 0.5 470.0 420.0 11 400.0 430.0 7 470.0 436.0 8 400.0 436 9 Sulphate as S mg/l 5 58.0 59.0 2 61.0 62.0 2 58.0 64.0 10 61.0 63 3 TDS mg/l 10 (Primary): 1 (Interlab) 2800.0 3800.0 30 3200.0 3400.0 6 2800.0 2940.0 5 3200.0 3040.0 5 Sulphite as S mg/l 0.5 <0.5 <0.5 0 <0.5 <0.5 0 <0.5 <2 0 <0.5 <2 0

Metals Calcium mg/l 0.5 220.0 230.0 4 200.0 210.0 5 220.0 216.0 2 200.0 211 5 Ferric Iron mg/l 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 0.06 0 Iron (Filtered) mg/l 0.05 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.05 0 <0.05 0.06 18 Magnesium mg/l 0.5 150.0 150.0 0 160.0 170.0 6 150.0 157.0 5 160.0 169.0 5 Manganese (Filtered) mg/l 0.005 (Primary): 0.001 (Interlab) 0.27 0.27 0 <0.005 <0.005 0 0.27 0.236 13 <0.005 0.008 46 Potassium mg/l 0.5 7.1 7.2 1 7.4 8.5 14 7.1 9.0 24 7.4 9.0 20

Organic Methane mg/l 0.05 (Primary): 0.01 (Interlab) <0.05 <0.05 0 <0.05 <0.05 0 <0.05 <0.01 0 <0.05 <0.01 0

PAH/Phenols Naphthalene µg/l 20 (Primary): 5 (Interlab) <20.0 <20.0 0 <20.0 <20.0 0 <20.0 <5.0 0 <20.0 <5.0 0

TPH C6 - C9 µg/l 20 270.0 280.0 4 1400.0 1400.0 0 270.0 160.0 51 1400.0 1120.0 22 C10 - C14 µg/l 50 <50.0 <50.0 0 <50.0 <50.0 0 <50.0 <50.0 0 <50.0 <50.0 0 C15 - C28 µg/l 100 <100.0 <100.0 0 <100.0 <100.0 0 <100.0 <100.0 0 <100.0 <100.0 0 C29-C36 µg/l 100 (Primary): 50 (Interlab) <100.0 <100.0 0 <100.0 <100.0 0 <100.0 <50.0 0 <100.0 <50.0 0 +C10 - C36 (Sum of total) µg/l 100 (Primary): 50 (Interlab) <100.0 <100.0 0 <100.0 <100.0 0 <100.0 <50.0 0 <100.0 <50.0 0 C6-C10 mg/l 0.02 0.27 0.28 4 1.4 1.4 0 0.27 0.16 51 1.4 1.08 26

*RPDs have only been considered where a concentration is greater than 1 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 50 (1-10 x EQL); 50 (10-30 x EQL); 50 ( > 30 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

1 of 1

Field Blank Analysis, 37-41 Cliff Street, Glenelg East, April 2015 Greencap Job Ref:J125792

Field Blanks (WATER) SDG 454285 454631 454631 454631 454285 454631 454285 454631 454631 454631 Filter: SDG in('454631','454285') Field_ID FB1 FB2 FB3 FB4 RB1 RB2 TB1 TB2 TB3 TB4

Sampled_Date-Time 16/04/2015 20/04/2015 20/04/2015 20/04/2015 16/04/2015 20/04/2015 16/04/2015 20/04/2015 20/04/2015 20/04/2015 Sample_Type Field_B Field_B Field_B Field_B Rinsate Rinsate Trip_B Trip_B Trip_B Trip_B

Chem_Group ChemName Units EQL

Chlorinated Hydrocarbons 1,1,1,2-tetrachloroethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,1,1-trichloroethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,1,2,2-tetrachloroethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,1,2-trichloroethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,1-dichloroethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,1-dichloroethene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,2,3-trichloropropane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,2-dichloroethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,2-dichloropropane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,3-dichloropropane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Bromodichloromethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Bromoform µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Carbon tetrachloride µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Chlorodibromomethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Chloroform µg/l 5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 Chloromethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 cis-1,2-dichloroethene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 cis-1,3-dichloropropene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Dibromomethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Dichloromethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Trichloroethene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Tetrachloroethene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 trans-1,2-dichloroethene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 trans-1,3-dichloropropene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Vinyl chloride µg/l 0.05 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1

Halogenated Benzenes 1,2-dichlorobenzene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,3-dichlorobenzene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1,4-dichlorobenzene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Chlorobenzene µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1

Halogenated Hydrocarbons 1,2-dibromoethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Bromomethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Iodomethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Trichlorofluoromethane µg/l 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1

1 of 1

June 2015


RESULTS SUMMARY TABLES – SOIL VAPOUR & CRAWL SPACE

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East XXXII

Soil Vapour Monitoring Results, Glenelg East, April ‐ June 2015 Greencap Job: J125792

Sample Location Field ID Depth Type of sample SGP01 SGP01 2 Canister

SGP03 1.5 Canister SGP04 1.5 Canister SGP04 1.5 TD Tube SQV05 1.5 TD Tube (duplicate of SGP04 1.5 TDT) SQV06 1.5 TD Tube (duplicate of SGP04 1.5 TDT) SGP05 1.5 Canister QV03 1.5 Canister (duplicate of SGP05 1.5 canister) SGP05 2.5 Canister QV04 2.5 Canister (duplicate of SGP05 2.5 canister) SGP06 1.5 Canister SGP06 1.5 TD Tube SGP06 1.5 Canister SGP06 1.5 TD Tube SGP07 1.5 Canister SGP08 1.5 Canister SGP09 1.5 Canister SGP09 1.5 TD Tube SGP10 1.5 Canister SGP10 1.5 TD Tube SGP11 1.5 Canister QV05 1.5 Canister (duplicate of SGP11 1.5 canister) SGP11 1.5 TD Tube SGP11 2.5 Canister QV06 2.5 Canister (duplicate of SGP11 2.5 canister) SGP12 1.5 Canister SGP13 1.5 Canister SGP13 2.5 Canister

SGP14 SGP14 1.5 Canister



SGP17 SGP17 1.5 Canister SGP18 1.5 Canister QV01 1.5 Canister (duplicate of SGP18 1.5 canister) SGP18 2.5 Canister QV02 2.5 Canister (duplicate of SGP18 2.5 canister) SGP19 1.5 Canister SGP19 2.5 Canister SGP20 1.5 Canister SGP20 2.5 Canister


Sample location Field ID Depth Type of sample Room1 N/A Canister QA1 N/A Canister (duplicate of Room1) QA2 N/A Canister (duplicate of Room1)

Kitchen Room 2 N/A Canister

Main Bedroom Room3 N/A Canister

Soil Vapour Monitoring Results, Glenelg East,

April 2015 - June 2015

NEPM 2013 RESIDENTIAL Soil Vapour HSL for Vapour Intrusion, 1m to <2m, Clay NEPM 2013 COMMERCIAL/INDUSTRIAL Soil Vapour HSL for Vapour Intrusion, 1m to <2m, Clay NEPM 2013 RESIDENTIAL Soil Vapour HSL for Vapour Intrusion, 2m to <4m, Clay NEPM 2013 COMMERCIAL/INDUSTRIAL Soil Vapour HSL for Vapour Intrusion, 2m to <4m, Clay NEPM 2013 Interim Soil Vapour HIL Residential A (Gardens/Accessible soil) NEPM 2013 Interim Soil Vapour HIL Commercial / Industrial D

SGP03

SGP04

SGP05

SGP06

SGP07 SGP08

SGP09

SGP10

SGP11

SGP12

SGP13

SGP18

SGP19

SGP20

Spare room

CRAWL SPACE TESTING

Date sampled 20/04/2015

22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 22/04/2015 26/06/2015 26/06/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015 21/04/2015 21/04/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015 21/04/2015 21/04/2015 21/04/2015 21/04/2015 21/04/2015 21/04/2015 21/04/2015 21/04/2015 22/04/2015

Date sampled 23-24/4/15 23-24/4/15 23-24/4/15 23-24/4/15 23-24/4/15

Vin

yl c

hlo

ride

µg/m3

30 100

<160 <36 <3 <10 <10 <9.9 <3 <3

<36 <12.8 <1.3 <10 <1.3 <2

<36 <1.3 <1.3 <10 <1.3 <10 <1.3 <1.3 <10 <1.3 <5.1 <3 <1.3 <1.3 <1.3 <1.3 <1.3 <3 <3 <3 <1.3 <5.1 <5 <10 <1.3 <1.3 <1.3

<1.3 <1.3 <1.3 <1.3 <1.3

cis

-1,2

-Dic

hlo

roet

hen

e

µg/m3

80 300

71000

<56 53 75 84 120 <4 <4 <56 <20 <2.0 <10 <2.0 <2.0 <56 <2.0 230 370 <2.0 <10 <2.0 <2.0 <10 550 872 <4 <2.0 <2.0 <2.0 <2.0 13 47 <4 <4 <2.0 <20 <8 <16 <2.0 <2.0 <2.0

2.4 2.3 2.4 4.1 3.9

1,1,

1-Tr

ich

loro

eth

ane

µg/m3

60000 230000

<340

<76 <5 <10 <10 <9.9 <5 <5 <76 <270 <2.7 <10 <2.7 <2.0 <76 <2.7 <2.7 <10 <2.7 <10 <2.7 <2.7 <10 <2.7 <270 <5 <2.7 <2.7 <2.7 <2.7 <2.7 <5 <5 <5 <2.7 <270 <11 <22 <2.7 <2.7 <2.7

<2.7 <2.7 <2.7 <2.7 <2.7

VHC

Tric

hlo

roet

hen

e

µg/m3

20 80

12000

<75 190 430 480 550 130 190 <75 634 <2.7 230 <2.7 <2.0 <75 130 120 290 <2.7 <10 42 45 57 2200 2900 11 2.7 <2.7 <2.7 3.4 860 400 9.2 13 <2.7 <5.4 28 52 <2.7 <2.7 10

<2.7 <2.7 3.8 <2.7 <2.7

Tetr

ach

loro

eth

ene

Ben

zen

e

µg/m3 µg/m3

15000 80000 40000 230000

2000 8000

140000 <200

15000 <45 340 <3

1100 <10 1300 <10 1600 <9.9 17000 <3 17000 <3 42000 <45 65600 <100

36 <1.6 44000 # <10

13 <1.6 120 <2.0 21000 <45 1600 <1.6

22 160 32 280

370 <1.6 1600 <10 120 <1.6 170 <1.6 180 <10 2600 <1.6 3460 <100 9400 <3 <3.4 <1.6 <3.4 <1.6 11 <1.6 21 <1.6

920 <1.6 2800 <3 1900 <3 1800 <3 3100 <1.6 4050 <100 18000 <6 29000 <13 3.7 <1.6 16 <1.6

270 <1.6

69 <1.6 69 <1.6

80.7 <1.6 130 <1.6 61 <1.6

Tolu

ene

Eth

ylbe

nze

ne

µg/m3 µg/m3

23000000 6800000 100000000 31000000 53000000 16000000

NL NL

<240 <270

<53 <61 <4 <4 84 <10 <10 <10 <9.9 <9.9 <4 5 <4 4.8 <53 <61 <190 <220 <1.9 <2.2 89 11 17 7.6 20 13 <53 <61 7.7 <2.2 11 <2.2 64 <10 4.6 3.6 210 <10 3.5 <2.2 3.8 <2.2 50 <10 <1.9 <2.2 <190 <220 <4 <4 7 2.6

3.1 <2.2 6.1 <2.2 5.2 <2.2 5.4 <2.2 13 5.6 6.6 <4 11 <4 7.4 2.4 <190 <220 <8 <9 <15 <17 4.2 <2.2 4.2 <2.2 <1.9 <2.2

2.9 <2.2 2.2 <2.2 4.1 <2.2 2.9 <2.2 2.6 <2.2

BTEX

Xyl

ene

tota

l (ca

lc)

µg/m3

4800000 21000000 11000000

NL

<820

<183 <13 <30 <30 <19.8 27.3 27.2 <183 <650 <6.5 <40 45 81 <183 <7.4 9.1 45

19.9 <37 <7.3 <7.7 <30 <6.5 <650 <13 12 <6.7 <6.5 7.7 <6.2 16.4 <13 <13 7.7 <650 <26 <52 9.4 8.6 <6.5

<6.5 <6.5 <6.5 <6.5 <6.5

µg/m3

20000 85000 45000 240000

<330

<73 <5 12 <10 <9.9 <5 <5 <73 <100 <2.6 <10 <2.6 <2 <73 <2.6 <2.6 <10 <2.6 16 <2.6 <2.6 <10 <2.6 <100 <5 <2.6 <2.6 <2.6 <2.6 3.9 <5 <5 <5 11 <100 <10 <21 <2.6 <2.6 <2.6

<2.6 <2.6 <2.6 <2.6 <2.6

Nap

hth

alen

e

TPH

C6

- C

10 -

BTE

X (

F1)

µg/m3

4200000 19000000 9900000 55000000

180000 12000

610 <1400 <1400 2300

11000 11000 29000 53100 <200

14000 <200 <280

11000 1200 3000 3600 430 <1400 <200 <200 <1400 1800 <20000 6300 <200 <200 <200 <200 1100 1700 1400 1300 2200 <20000 12000 19000 <200 <200 260

<200 <200 <200 <200 <200

TRH

TPH

>C

10 -

C16

- N

aph

thal

ene

= F

2

µg/m3

3800000 NL NL NL

<5000

<1120 <80 920 <900 <200 <80 <80 <1120 <40000 <40

1600 <40 <180 <1120 <40 <40 <900 <40 <900 <40 <40 <900 <40

<40000 <80 <40 <40 <40 <40 <40 <80 <80 <80 <40

<40000 <160 <320 <40 <40 <40

<40 <40 <400 <40 <40

NOTES: # Result above linear calibration range of thermal desorption tube (estimated concentration)

Page 1 of 1

Soil Vapour RPD Analysis, 37-41 Cliff Street, Glenelg East, April 2015 Greencap Job Ref:J125792

Field Duplicates (gas) SDG ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2015-04-28T00:00:00 ENVIROLAB 2015-04-28T00:00:00 Field_ID SGP18 QV01 RPD SGP05 QV03 RPD SGP11 QV05 RPD SGP04 SQV05 RPD Room 1 QA1 RPD Sampled_Date-Time 21/04/2015 21/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015

Filter: [Sampled_Date-Time] >= #01 Jan 2015# and [Sampled_Date-Time

Chem_Group ChemName Units EQL Freon 113 µg/m3 3.8 (Primary): 380 (Interlab) <8.0 <8.0 0 <8.0 <8.0 0 <3.8 <3.8 0 <3.8 <3.8 0 Freon 113 µg/m3 2 <2.0 <2.0 0 2-Propanol µg/m3 1.2 (Primary): 120 (Interlab) 1400.0 1400.0 0 760.0 720.0 5 61000.0 33000.0 60 18.0 31.0 53 Propene µg/m3 2 930.0 990.0 6 Propene µg/m3 0.9 (Primary): 90 (Interlab) <2.0 <2.0 0 <2.0 <2.0 0 <0.9 <0.9 0 <0.9 <0.9 0 TRH >C10-C16 less Naphthalene (F2) µg/m3 900 920.0 <900.0 2 TRH >C10-C16 less Naphthalene (F2) µg/m3 40 (Primary): 40000 (Interlab) <80.0 <80.0 0 <80.0 <80.0 0 <40.0 <40.0 0 <40.0 <40.0 0

BTEX Benzene µg/m3 2 <10.0 <10.0 0 Benzene µg/m3 1.6 (Primary): 9.9 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.6 <1.6 0 <1.6 <1.6 0 Ethylbenzene µg/m3 2.2 (Primary): 9.9 (Interlab) <4.0 <4.0 0 5.0 4.8 4 <2.2 <2.2 0 <2.2 <2.2 0 Ethylbenzene µg/m3 2 <10.0 <10.0 0 Toluene µg/m3 2 84.0 <10.0 157 Toluene µg/m3 1.9 (Primary): 9.9 (Interlab) 6.6 11.0 50 <4.0 <4.0 0 3.5 3.8 8 2.9 2.2 27 Xylene (m & p) µg/m3 4.3 (Primary): 430 (Interlab) <9.0 <9.0 0 21.0 21.0 0 5.1 5.5 8 <4.3 <4.3 0 Xylene (m & p) µg/m3 4 <20.0 <20.0 0 Xylene (o) µg/m3 2.2 (Primary): 220 (Interlab) <4.0 <4.0 0 6.3 6.2 2 <2.2 <2.2 0 <2.2 <2.2 0 Xylene (o) µg/m3 2 <10.0 <10.0 0 C6-C10 less BTEX (F1) µg/m3 200 (Primary): 20000 (Interlab) 1400.0 1300.0 7 11000.0 11000.0 0 <200.0 <200.0 0 <200.0 <200.0 0 C6-C10 less BTEX (F1) µg/m3 1400 <1400.0 <1400.0 0

Chlorinated Hydrocarbons 1,1,1-trichloroethane µg/m3 2.7 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.7 <2.7 0 <2.7 <2.7 0 1,1,1-trichloroethane µg/m3 2 <10.0 <10.0 0 1,1,2,2-tetrachloroethane µg/m3 3.4 (Primary): 9.9 (Interlab) <7.0 <7.0 0 <7.0 <7.0 0 <3.4 <3.4 0 <3.4 <3.4 0 1,1,2,2-tetrachloroethane µg/m3 2 <10.0 <10.0 0 1,1,2-trichloroethane µg/m3 2.7 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.7 <2.7 0 <2.7 <2.7 0 1,1,2-trichloroethane µg/m3 2 <10.0 <10.0 0 1,1-dichloroethane µg/m3 2 (Primary): 9.9 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 1,1-dichloroethane µg/m3 2 <10.0 <10.0 0 1,1-dichloroethene µg/m3 2 (Primary): 9.9 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 1,1-dichloroethene µg/m3 2 <10.0 <10.0 0 1,2-dichloroethane µg/m3 2 <10.0 <10.0 0 1,2-dichloroethane µg/m3 2 (Primary): 9.9 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 1,2-dichloropropane µg/m3 2.3 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.3 <2.3 0 <2.3 <2.3 0 1,2-dichloropropane µg/m3 2 <10.0 <10.0 0 Benzyl chloride ug/m3 2.6 (Primary): 260 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.6 <2.6 0 <2.6 <2.6 0 Benzyl chloride ug/m3 2 <10.0 <10.0 0 Bromodichloromethane µg/m3 3.4 (Primary): 9.9 (Interlab) 16.0 15.0 6 <7.0 <7.0 0 <3.4 <3.4 0 <3.4 <3.4 0 Bromodichloromethane µg/m3 2 <10.0 <10.0 0 Bromoform µg/m3 5.2 (Primary): 9.9 (Interlab) <10.0 <10.0 0 <10.0 <10.0 0 <5.2 <5.2 0 <5.2 <5.2 0 Bromoform µg/m3 2 <10.0 <10.0 0 Carbon tetrachloride µg/m3 3.1 (Primary): 9.9 (Interlab) <6.0 <6.0 0 <6.0 <6.0 0 <3.1 <3.1 0 <3.1 <3.1 0 Carbon tetrachloride µg/m3 2 <10.0 <10.0 0 Chlorodibromomethane µg/m3 2 <10.0 <10.0 0 Chlorodibromomethane µg/m3 1.6 (Primary): 9.9 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.6 <1.6 0 <1.6 <1.6 0 Chloroethane µg/m3 2 <10.0 <10.0 0 Chloroethane µg/m3 1.3 (Primary): 9.9 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.3 <1.3 0 <1.3 <1.3 0 Chloroform µg/m3 2.4 (Primary): 240 (Interlab) 9.4 8.9 5 <5.0 <5.0 0 <2.4 <2.4 0 <2.4 <2.4 0 Chloroform µg/m3 2 <10.0 <10.0 0 Chloromethane µg/m3 2 <10.0 <10.0 0 Chloromethane µg/m3 1 (Primary): 9.9 (Interlab) <2.0 <2.0 0 <2.0 <2.0 0 <1.0 <1.0 0 <1.0 <1.0 0 cis-1,2-dichloroethene µg/m3 2 (Primary): 20 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 2.4 2.3 4 cis-1,2-dichloroethene µg/m3 2 75.0 84.0 11 cis-1,3-dichloropropene µg/m3 2.3 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.3 <2.3 0 <2.3 <2.3 0 cis-1,3-dichloropropene µg/m3 2 <10.0 <10.0 0 Hexachlorobutadiene µg/m3 5.3 (Primary): 9.9 (Interlab) <11.0 <11.0 0 <11.0 <11.0 0 <5.3 <5.3 0 <5.3 <5.3 0 Hexachlorobutadiene µg/m3 2 <10.0 <10.0 0 Trichloroethene µg/m3 2.7 (Primary): 5.4 (Interlab) 9.2 13.0 34 130.0 190.0 38 42.0 45.0 7 <2.7 <2.7 0 Trichloroethene µg/m3 2 430.0 480.0 11 Tetrachloroethene µg/m3 3.4 (Primary): 340 (Interlab) 1900.0 1800.0 5 17000.0 17000.0 0 120.0 170.0 34 69.0 69.0 0 Tetrachloroethene µg/m3 2 1100.0 1300.0 17 trans-1,2-dichloroethene µg/m3 2 (Primary): 9.9 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 trans-1,2-dichloroethene µg/m3 2 <10.0 <10.0 0 trans-1,3-dichloropropene µg/m3 2.3 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.3 <2.3 0 <2.3 <2.3 0 trans-1,3-dichloropropene µg/m3 2 <10.0 <10.0 0 Vinyl chloride µg/m3 2 <10.0 <10.0 0 Vinyl chloride µg/m3 1.3 (Primary): 9.9 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.3 <1.3 0 <1.3 <1.3 0

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Field Duplicates (gas) SDG ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2 ENVIROLAB 2015-04-28T00:00:00 ENVIROLAB 2015-04-28T00:00:00 Field_ID SGP18 QV01 RPD SGP05 QV03 RPD SGP11 QV05 RPD SGP04 SQV05 RPD Room 1 QA1 RPD Sampled_Date-Time 21/04/2015 21/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015


Halogenated Benzenes 1,2,4-trichlorobenzene µg/m3 3.7 (Primary): 9.9 (Interlab) <7.0 <7.0 0 <7.0 <7.0 0 <3.7 <3.7 0 <3.7 <3.7 0 1,2,4-trichlorobenzene µg/m3 2 <10.0 <10.0 0 1,2-dichlorobenzene µg/m3 3 (Primary): 9.9 (Interlab) <6.0 <6.0 0 <6.0 <6.0 0 <3.0 <3.0 0 <3.0 <3.0 0 1,2-dichlorobenzene µg/m3 2 <10.0 <10.0 0 1,3-dichlorobenzene µg/m3 3 (Primary): 9.9 (Interlab) <6.0 <6.0 0 <6.0 <6.0 0 <3.0 <3.0 0 <3.0 <3.0 0 1,3-dichlorobenzene µg/m3 2 <10.0 <10.0 0 1,4-dichlorobenzene µg/m3 3 (Primary): 9.9 (Interlab) <6.0 <6.0 0 <6.0 <6.0 0 <3.0 <3.0 0 <3.0 <3.0 0 1,4-dichlorobenzene µg/m3 2 <10.0 <10.0 0 Chlorobenzene µg/m3 2.3 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.3 <2.3 0 <2.3 <2.3 0 Chlorobenzene µg/m3 2 <10.0 <10.0 0

Halogenated Hydrocarbons 1,2-dibromoethane µg/m3 3.8 (Primary): 9.9 (Interlab) <8.0 <8.0 0 <8.0 <8.0 0 <3.8 <3.8 0 <3.8 <3.8 0 1,2-dibromoethane µg/m3 2 <10.0 <10.0 0 Bromomethane µg/m3 2 <10.0 <10.0 0 Bromomethane µg/m3 1.9 (Primary): 190 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <1.9 <1.9 0 <1.9 <1.9 0 Dichlorodifluoromethane µg/m3 2.5 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 370.0 370.0 0 <2.5 <2.5 0 Dichlorodifluoromethane µg/m3 2 <10.0 <10.0 0 Trichlorofluoromethane µg/m3 2.8 (Primary): 9.9 (Interlab) <6.0 <6.0 0 <6.0 <6.0 0 <2.8 <2.8 0 <2.8 <2.8 0 Trichlorofluoromethane µg/m3 2 <10.0 <10.0 0

MAH 1,2,4-trimethylbenzene µg/m3 2.5 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.5 <2.5 0 <2.5 <2.5 0 1,2,4-trimethylbenzene µg/m3 2 <10.0 <10.0 0 1,3,5-trimethylbenzene µg/m3 2.5 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.5 <2.5 0 <2.5 <2.5 0 1,3,5-trimethylbenzene µg/m3 2 <10.0 <10.0 0 1-methyl-4 ethyl benzene µg/m3 2.5 (Primary): 240 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.5 <2.5 0 <2.5 <2.5 0 1-methyl-4 ethyl benzene µg/m3 2 <10.0 <10.0 0 Styrene µg/m3 2.1 (Primary): 9.9 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.1 <2.1 0 <2.1 <2.1 0 Styrene µg/m3 2 <10.0 <10.0 0

PAH/Phenols Naphthalene µg/m3 2.6 (Primary): 9.9 (Interlab) <5.0 <5.0 0 <5.0 <5.0 0 <2.6 <2.6 0 <2.6 <2.6 0 Naphthalene µg/m3 2 12.0 <10.0 18

Solvents 1,4-Dioxane µg/m3 2 <10.0 <10.0 0 1,4-Dioxane µg/m3 1.8 (Primary): 180 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <1.8 <1.8 0 <1.8 <1.8 0 Methyl Ethyl Ketone µg/m3 2 <10.0 <10.0 0 Methyl Ethyl Ketone µg/m3 1.5 (Primary): 150 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.5 <1.5 0 <1.5 <1.5 0 2-hexanone (MBK) µg/m3 2 (Primary): 200 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 2-hexanone (MBK) µg/m3 2 <10.0 <10.0 0 4-Methyl-2-pentanone µg/m3 2 <10.0 <10.0 0 4-Methyl-2-pentanone µg/m3 2 (Primary): 200 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 Carbon disulfide µg/m3 2 <10.0 <10.0 0 Carbon disulfide µg/m3 1.6 (Primary): 160 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.6 <1.6 0 <1.6 <1.6 0 Cyclohexane ug/m3 2 <10.0 <10.0 0 Cyclohexane ug/m3 1.7 (Primary): 170 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.7 <1.7 0 <1.7 <1.7 0 Ethanol µg/m3 2 <10.0 <10.0 0 Ethanol µg/m3 0.9 (Primary): 90 (Interlab) <2.0 <2.0 0 <2.0 130.0 194 16.0 19.0 17 220.0 240.0 9 Ethyl acetate µg/m3 2 <10.0 <10.0 0 Ethyl acetate µg/m3 1.8 (Primary): 180 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <1.8 <1.8 0 <1.8 <1.8 0 Heptane µg/m3 2 15.0 <10.0 40 Heptane µg/m3 2 (Primary): 200 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0 Hexane µg/m3 2 16.0 17.0 6 Hexane µg/m3 1.8 (Primary): 180 (Interlab) 18.0 18.0 0 <4.0 <4.0 0 <1.8 <1.8 0 <1.8 <1.8 0 MTBE ug/m3 2 <10.0 <10.0 0 MTBE ug/m3 1.8 (Primary): 180 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <1.8 <1.8 0 <1.8 <1.8 0 Tetrahydrofuran µg/m3 2 <10.0 <10.0 0 Tetrahydrofuran µg/m3 1.5 (Primary): 150 (Interlab) <3.0 <3.0 0 <3.0 <3.0 0 <1.5 <1.5 0 <1.5 <1.5 0 Vinyl acetate µg/m3 2 <10.0 <10.0 0 Vinyl acetate µg/m3 1.8 (Primary): 180 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <1.8 <1.8 0 <1.8 <1.8 0

VOCs 1,3-Butadiene µg/m3 2 <10.0 <10.0 0 1,3-Butadiene µg/m3 1.1 (Primary): 110 (Interlab) <2.0 <2.0 0 <2.0 <2.0 0 <1.1 <1.1 0 <1.1 <1.1 0 Acrolein µg/m3 2 <10.0 <10.0 0 Acrolein µg/m3 1.1 (Primary): 110 (Interlab) <2.0 <2.0 0 <2.0 <2.0 0 <1.1 <1.1 0 <1.1 <1.1 0 Methyl Methacrylate µg/m3 2 <10.0 <10.0 0 Methyl Methacrylate µg/m3 2 (Primary): 210 (Interlab) <4.0 <4.0 0 <4.0 <4.0 0 <2.0 <2.0 0 <2.0 <2.0 0

*RPDs have only been considered where a concentration is greater than 1 times the EQL.**High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 80 (1-10 x EQL); 50 (10-30 x EQL); 30 ( > 30 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

2 of 4


Field Duplicates (gas) SDG Field_ID Sampled_Date-Time

Chem_Group ChemName Units EQL Freon 113 µg/m3 3.8 (Primary): 380 (Interlab) Freon 113 µg/m3 2 2-Propanol µg/m3 1.2 (Primary): 120 (Interlab) Propene µg/m3 2 Propene µg/m3 0.9 (Primary): 90 (Interlab) TRH >C10-C16 less Naphthalene (F2) µg/m3 900 TRH >C10-C16 less Naphthalene (F2) µg/m3 40 (Primary): 40000 (Interlab)

BTEX Benzene µg/m3 2 Benzene µg/m3 1.6 (Primary): 9.9 (Interlab) Ethylbenzene µg/m3 2.2 (Primary): 9.9 (Interlab) Ethylbenzene µg/m3 2 Toluene µg/m3 2 Toluene µg/m3 1.9 (Primary): 9.9 (Interlab) Xylene (m & p) µg/m3 4.3 (Primary): 430 (Interlab) Xylene (m & p) µg/m3 4 Xylene (o) µg/m3 2.2 (Primary): 220 (Interlab) Xylene (o) µg/m3 2 C6-C10 less BTEX (F1) µg/m3 200 (Primary): 20000 (Interlab) C6-C10 less BTEX (F1) µg/m3 1400

Chlorinated Hydrocarbons 1,1,1-trichloroethane µg/m3 2.7 (Primary): 9.9 (Interlab) 1,1,1-trichloroethane µg/m3 2 1,1,2,2-tetrachloroethane µg/m3 3.4 (Primary): 9.9 (Interlab) 1,1,2,2-tetrachloroethane µg/m3 2 1,1,2-trichloroethane µg/m3 2.7 (Primary): 9.9 (Interlab) 1,1,2-trichloroethane µg/m3 2 1,1-dichloroethane µg/m3 2 (Primary): 9.9 (Interlab) 1,1-dichloroethane µg/m3 2 1,1-dichloroethene µg/m3 2 (Primary): 9.9 (Interlab) 1,1-dichloroethene µg/m3 2 1,2-dichloroethane µg/m3 2 1,2-dichloroethane µg/m3 2 (Primary): 9.9 (Interlab) 1,2-dichloropropane µg/m3 2.3 (Primary): 9.9 (Interlab) 1,2-dichloropropane µg/m3 2 Benzyl chloride ug/m3 2.6 (Primary): 260 (Interlab) Benzyl chloride ug/m3 2 Bromodichloromethane µg/m3 3.4 (Primary): 9.9 (Interlab) Bromodichloromethane µg/m3 2 Bromoform µg/m3 5.2 (Primary): 9.9 (Interlab) Bromoform µg/m3 2 Carbon tetrachloride µg/m3 3.1 (Primary): 9.9 (Interlab) Carbon tetrachloride µg/m3 2 Chlorodibromomethane µg/m3 2 Chlorodibromomethane µg/m3 1.6 (Primary): 9.9 (Interlab) Chloroethane µg/m3 2 Chloroethane µg/m3 1.3 (Primary): 9.9 (Interlab) Chloroform µg/m3 2.4 (Primary): 240 (Interlab) Chloroform µg/m3 2 Chloromethane µg/m3 2 Chloromethane µg/m3 1 (Primary): 9.9 (Interlab) cis-1,2-dichloroethene µg/m3 2 (Primary): 20 (Interlab) cis-1,2-dichloroethene µg/m3 2 cis-1,3-dichloropropene µg/m3 2.3 (Primary): 9.9 (Interlab) cis-1,3-dichloropropene µg/m3 2 Hexachlorobutadiene µg/m3 5.3 (Primary): 9.9 (Interlab) Hexachlorobutadiene µg/m3 2 Trichloroethene µg/m3 2.7 (Primary): 5.4 (Interlab) Trichloroethene µg/m3 2 Tetrachloroethene µg/m3 3.4 (Primary): 340 (Interlab) Tetrachloroethene µg/m3 2 trans-1,2-dichloroethene µg/m3 2 (Primary): 9.9 (Interlab) trans-1,2-dichloroethene µg/m3 2 trans-1,3-dichloropropene µg/m3 2.3 (Primary): 9.9 (Interlab) trans-1,3-dichloropropene µg/m3 2 Vinyl chloride µg/m3 2 Vinyl chloride µg/m3 1.3 (Primary): 9.9 (Interlab)

Filter: [Sampled_Date-Time] >= #01 Jan 2015# and [Sampled_Date-Time ENVIROLAB 2 Interlab_D ENVIROLAB 2 Interlab_D ENVIROLAB 2 Interlab_D ENVIROLAB 2 Interlab_D ENVIROLAB 2015-04-28T00:00:00 Interlab_D

SGP04 SQV06 Mi155300 RPD SGP18 QV02 RPD SGP05 QV04 RPD SGP11 QV06 RPD Room 1 QA2 RPD 22/04/2015 22/04/2015 21/04/2015 21/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015

<3.8 <380.0 0 <107.0 <380.0 0 <3.8 <380.0 0 <3.8 <3.8 0 <2.0

3900.0 290.0 172 <34.0 <120.0 0 3000.0 324.0 161 18.0 14.2 24 930.0

<0.9 <90.0 0 <24.0 <90.0 0 <0.9 <90.0 0 <0.9 <0.9 0 920.0 <200 129

<40.0 <40000.0 0 <1120.0 <40000.0 0 <40.0 <40000.0 0 <40.0 <400.0 0

<10.0 <9.9 0 <1.6 <100.0 0 <45.0 <100.0 0 <1.6 <100.0 0 <1.6 <1.6 0 2.4 <220.0 0 <61.0 <220.0 0 <2.2 <220.0 0 <2.2 <2.2 0

<10.0 <9.9 0 84.0 <9.9 158

7.4 <190.0 0 <53.0 <190.0 0 <1.9 <190.0 0 2.9 4.1 34 5.4 <430.0 0 <122.0 <430.0 0 <4.3 <430.0 0 <4.3 <4.3 0

<20.0 2.3 <220.0 0 <61.0 <220.0 0 <2.2 <220.0 0 <2.2 <2.2 0

<10.0 2200.0 <20000.0 0 29000.0 52900.0 58 1800.0 <20000.0 0 <200.0 <200.0 0

<1400.0 2300 49

<2.7 <270.0 0 <76.0 <270.0 0 <2.7 <270.0 0 <2.7 <2.7 0 <10.0 <9.9 0

<3.4 <340.0 0 <96.0 <340.0 0 <3.4 <340.0 0 <3.4 <3.4 0 <10.0 <9.9 0

<2.7 <270.0 0 <76.0 <270.0 0 <2.7 <270.0 0 <2.7 <2.7 0 <10.0 <9.9 0

<2.0 <200.0 0 <57.0 <200.0 0 <2.0 <200.0 0 <2.0 <2.0 0 <10.0 <9.9 0

<2.0 <200.0 0 <56.0 <200.0 0 <2.0 <200.0 0 <2.0 <2.0 0 <10.0 <9.9 0 <10.0 <9.9 0

<2.0 <200.0 0 <57.0 <200.0 0 <2.0 <200.0 0 <2.0 <2.0 0 <2.3 <230.0 0 <65.0 <230.0 0 <2.3 <230.0 0 <2.3 <2.3 0

<10.0 <9.9 0 <2.6 <260.0 0 <72.0 <260.0 0 <2.6 <260.0 0 <2.6 <2.6 0

<10.0 <9.9 0 26.0 <340.0 0 <94.0 <340.0 0 <3.4 <340.0 0 <3.4 <3.4 0

<10.0 <9.9 0 <5.2 <520.0 0 <145.0 <520.0 0 <5.2 <520.0 0 <5.2 <5.2 0

<10.0 <9.9 0 <3.1 <310.0 0 <88.0 <310.0 0 <3.1 <310.0 0 <3.1 <3.1 0

<10.0 <9.9 0 <10.0 <9.9 0

<1.6 <430.0 0 <46.0 <430.0 0 <1.6 <430.0 0 <1.6 <4.3 0 <10.0 <9.9 0

<1.3 <130.0 0 <37.0 <130.0 0 <1.3 <130.0 0 <1.3 <1.3 0 24.0 <240.0 0 <68.0 <240.0 0 6.1 <240.0 0 <2.4 <2.4 0

<10.0 11.0 10 <10.0 <9.9 0

<1.0 <100.0 0 <29.0 <100.0 0 <1.0 <100.0 0 <1.0 1.2 18 <2.0 <20.0 0 <56.0 <20.0 0 550.0 872.0 45 2.4 2.4 0

75.0 120.0 46 <2.3 <230.0 0 <64.0 <230.0 0 <2.3 <230.0 0 <2.3 <2.3 0

<10.0 <9.9 0 <5.3 <530.0 0 <149.0 <530.0 0 <5.3 <530.0 0 <5.3 <5.3 0

<10.0 <9.9 0 <2.7 <5.4 0 <75.0 634.0 158 2200.0 2900.0 27 <2.7 3.8 34

430.0 550.0 24 3100.0 4050.0 27 42000.0 65600.0 44 2600.0 3460.0 28 69.0 80.7 16

1100.0 1600.0 37 <2.0 <200.0 0 <56.0 <200.0 0 <2.0 <200.0 0 <2.0 <2.0 0

<10.0 <9.9 0 <2.3 <230.0 0 <64.0 <230.0 0 <2.3 <230.0 0 <2.3 <2.3 0

<10.0 <9.9 0 <10.0 <9.9 0

<1.3 <5.1 0 <36.0 <12.8 0 <1.3 <5.1 0 <1.3 <1.3 0

3 of 4


Field Duplicates (gas) SDG Field_ID Sampled_Date-Time


Halogenated Benzenes 1,2,4-trichlorobenzene µg/m3 3.7 (Primary): 9.9 (Interlab) 1,2,4-trichlorobenzene µg/m3 2 1,2-dichlorobenzene µg/m3 3 (Primary): 9.9 (Interlab) 1,2-dichlorobenzene µg/m3 2 1,3-dichlorobenzene µg/m3 3 (Primary): 9.9 (Interlab) 1,3-dichlorobenzene µg/m3 2 1,4-dichlorobenzene µg/m3 3 (Primary): 9.9 (Interlab) 1,4-dichlorobenzene µg/m3 2 Chlorobenzene µg/m3 2.3 (Primary): 9.9 (Interlab) Chlorobenzene µg/m3 2

Halogenated Hydrocarbons 1,2-dibromoethane µg/m3 3.8 (Primary): 9.9 (Interlab) 1,2-dibromoethane µg/m3 2 Bromomethane µg/m3 2 Bromomethane µg/m3 1.9 (Primary): 190 (Interlab) Dichlorodifluoromethane µg/m3 2.5 (Primary): 9.9 (Interlab) Dichlorodifluoromethane µg/m3 2 Trichlorofluoromethane µg/m3 2.8 (Primary): 9.9 (Interlab) Trichlorofluoromethane µg/m3 2

MAH 1,2,4-trimethylbenzene µg/m3 2.5 (Primary): 9.9 (Interlab) 1,2,4-trimethylbenzene µg/m3 2 1,3,5-trimethylbenzene µg/m3 2.5 (Primary): 9.9 (Interlab) 1,3,5-trimethylbenzene µg/m3 2 1-methyl-4 ethyl benzene µg/m3 2.5 (Primary): 240 (Interlab) 1-methyl-4 ethyl benzene µg/m3 2 Styrene µg/m3 2.1 (Primary): 9.9 (Interlab) Styrene µg/m3 2

PAH/Phenols Naphthalene µg/m3 2.6 (Primary): 9.9 (Interlab) Naphthalene µg/m3 2

Solvents 1,4-Dioxane µg/m3 2 1,4-Dioxane µg/m3 1.8 (Primary): 180 (Interlab) Methyl Ethyl Ketone µg/m3 2 Methyl Ethyl Ketone µg/m3 1.5 (Primary): 150 (Interlab) 2-hexanone (MBK) µg/m3 2 (Primary): 200 (Interlab) 2-hexanone (MBK) µg/m3 2 4-Methyl-2-pentanone µg/m3 2 4-Methyl-2-pentanone µg/m3 2 (Primary): 200 (Interlab) Carbon disulfide µg/m3 2 Carbon disulfide µg/m3 1.6 (Primary): 160 (Interlab) Cyclohexane ug/m3 2 Cyclohexane ug/m3 1.7 (Primary): 170 (Interlab) Ethanol µg/m3 2 Ethanol µg/m3 0.9 (Primary): 90 (Interlab) Ethyl acetate µg/m3 2 Ethyl acetate µg/m3 1.8 (Primary): 180 (Interlab) Heptane µg/m3 2 Heptane µg/m3 2 (Primary): 200 (Interlab) Hexane µg/m3 2 Hexane µg/m3 1.8 (Primary): 180 (Interlab) MTBE ug/m3 2 MTBE ug/m3 1.8 (Primary): 180 (Interlab) Tetrahydrofuran µg/m3 2 Tetrahydrofuran µg/m3 1.5 (Primary): 150 (Interlab) Vinyl acetate µg/m3 2 Vinyl acetate µg/m3 1.8 (Primary): 180 (Interlab)

VOCs 1,3-Butadiene µg/m3 2 1,3-Butadiene µg/m3 1.1 (Primary): 110 (Interlab) Acrolein µg/m3 2 Acrolein µg/m3 1.1 (Primary): 110 (Interlab) Methyl Methacrylate µg/m3 2 Methyl Methacrylate µg/m3 2 (Primary): 210 (Interlab)

ENVIROLAB 2 Interlab_D ENVIROLAB 2 Interlab_D ENVIROLAB 2 Interlab_D ENVIROLAB 2 Interlab_D ENVIROLAB 2015-04-28T00:00:00 Interlab_D SGP04 SQV06 Mi155300 RPD SGP18 QV02 RPD SGP05 QV04 RPD SGP11 QV06 RPD Room 1 QA2 RPD

22/04/2015 22/04/2015 21/04/2015 21/04/2015 22/04/2015 22/04/2015 23/04/2015 23/04/2015 23/04/2015 23/04/2015

<3.7 <370.0 0 <104.0 <370.0 0 <3.7 <370.0 0 <3.7 <3.7 0 <10.0 <9.9 0

<3.0 <300.0 0 <84.0 <300.0 0 <3.0 <300.0 0 <3.0 <3.0 0 <10.0 <9.9 0

<3.0 <300.0 0 <84.0 <300.0 0 <3.0 <300.0 0 <3.0 <3.0 0 <10.0 <9.9 0

<3.0 <300.0 0 <84.0 <300.0 0 <3.0 <300.0 0 <3.0 <3.0 0 <10.0 <9.9 0

<2.3 <230.0 0 <64.0 <230.0 0 <2.3 <230.0 0 <2.3 <2.3 0 <10.0 <9.9 0

<3.8 <380.0 0 <108.0 <380.0 0 <3.8 <380.0 0 <3.8 <3.8 0 <10.0 <9.9 0 <10.0

<1.9 <190.0 0 <53.0 <190.0 0 <1.9 <190.0 0 <1.9 <1.9 0 <10.0 <9.9 0 <2.5 <250.0 0 <69.0 <250.0 0 780.0 978.0 23 <2.5 <2.5 0

<2.8 <280.0 0 <79.0 <280.0 0 <2.8 <280.0 0 <2.8 <2.8 0 <10.0 <9.9 0

<2.5 <240.0 0 <69.0 <240.0 0 <2.5 <240.0 0 <2.5 <2.4 0 <10.0 <9.9 0

<2.5 <240.0 0 <69.0 <240.0 0 <2.5 <240.0 0 <2.5 <2.4 0 <10.0 <9.9 0

<2.5 <240.0 0 <69.0 <240.0 0 <2.5 <240.0 0 <2.5 <2.4 0 <10.0

<2.1 <210.0 0 <60.0 <210.0 0 <2.1 <210.0 0 <2.1 <2.1 0 <10.0 <9.9 0

11.0 <100.0 0 <73.0 <100.0 0 <2.6 <100.0 0 <2.6 <2.6 0 12.0 <9.9 19

<10.0 <1.8 <180.0 0 <50.0 <180.0 0 <1.8 <180.0 0 <1.8 <1.8 0

<10.0 <1.5 <150.0 0 <41.0 <150.0 0 <1.5 <150.0 0 <1.5 <1.5 0 <2.0 <200.0 0 <57.0 <200.0 0 <2.0 <200.0 0 <2.0 <2.0 0

<10.0 <10.0

<2.0 <200.0 0 <57.0 <200.0 0 <2.0 <200.0 0 <2.0 <2.0 0 <10.0

<1.6 <160.0 0 <44.0 <160.0 0 <1.6 <160.0 0 <1.6 1.9 17 <10.0

<1.7 <170.0 0 <48.0 <170.0 0 <1.7 <170.0 0 <1.7 <1.7 0 <10.0

270.0 <90.0 100 <26.0 <90.0 0 <0.9 <90.0 0 220.0 55.0 120 <10.0

<1.8 <180.0 0 <50.0 <180.0 0 <1.8 <180.0 0 <1.8 <1.8 0 15.0

<2.0 <200.0 0 <57.0 <200.0 0 <2.0 <200.0 0 <2.0 2.4 18 16.0

<1.8 <180.0 0 <49.0 <180.0 0 <1.8 <180.0 0 <1.8 2.1 15 <10.0

<1.8 <180.0 0 <50.0 <180.0 0 <1.8 <180.0 0 <1.8 <1.8 0 <10.0

<1.5 <150.0 0 <41.0 <150.0 0 <1.5 <150.0 0 <1.5 <1.5 0 <10.0

<1.8 <180.0 0 <49.0 <180.0 0 <1.8 <180.0 0 <1.8 <1.8 0

<10.0 <1.1 <110.0 0 <31.0 115.0 115 <1.1 <110.0 0 <1.1 <1.1 0

<10.0 <1.1 <110.0 0 <32.0 <110.0 0 <1.1 <110.0 0 <1.1 <1.1 0

<10.0 <2.0 <210.0 0 <57.0 <210.0 0 <2.0 <210.0 0 <2.0 <2.1 0

*RPDs have only been considered where a concentration is greater than 1 times the EQL. **High RPDs are in bold (Acceptable RPDs for each EQL multiplier range are: 80 (1-10 x EQL); 50 (10-30 x EQL); 3 ***Interlab Duplicates are matched on a per compound basis as methods vary between laboratories. Any methods

4 of 4

June 2015


RESULTS SUMMARY TABLES – Outdoor Air (Radiello)

J125792 Stage 2 ESA Works, 37‐41 Cliff Street, Glenelg East XXXIII

Radiello Results Table J125792 Glenelg East

Sample Name West boundary Canopy NE Entrance Parameter Units Benzene µg/m³ 0.4 0.42 0.4 Bromochloromethane µg/m³ <0.14 <0.14 <0.14 Butanol µg/m³ <0.13 <0.13 <0.13 2-butoxyethanol µg/m³ <0.18 <0.18 <0.18 Butyl acetate µg/m³ <0.17 <0.17 <0.17 Carbon tetrachloride µg/m³ 0.53 0.5 0.53 Chlorobenzene µg/m³ <0.15 <0.15 <0.15 Cyclohexane µg/m³ 0.37 0.26 0.37 Cyclohexanone µg/m³ <0.15 <0.15 <0.15 n-decane µg/m³ 0.55 0.55 0.51 14-Dichlorobenzene µg/m³ <0.19 <0.19 <0.19 12-Dichloroethane µg/m³ <0.13 <0.13 <0.13 1,2-Dichloropropane µg/m³ <0.15 <0.15 <0.15 N-Dodecane µg/m³ 31 34 33 Ethyl acetate µg/m³ <0.13 <0.13 <0.13 Ethylbenzene µg/m³ 0.29 0.29 0.29 2-ethylhexanol µg/m³ <0.23 <0.23 <0.23 Ethyl-tert-butyl ether µg/m³ <0.16 <0.16 <0.16 n-Heptane µg/m³ <0.17 <0.17 <0.17 n-Hexane µg/m³ 0.39 0.36 0.51 Isobutanol µg/m³ <0.13 <0.13 <0.13 Isooctane µg/m³ 0.22 0.22 0.25 Isopropylbenzene µg/m³ <0.17 <0.17 <0.17 1-Methoxy-2-propanol µg/m³ <0.18 <0.18 <0.18 1-Methoxy-2-propyl acetate µg/m³ <0.17 <0.17 <0.17 Methyl methacrylate µg/m³ <0.15 <0.15 <0.15 Methylcyclohexane µg/m³ <0.15 <0.15 <0.15 Methylcyclopentane µg/m³ 0.23 0.25 0.28 Methylethylketone µg/m³ 0.25 0.23 0.23 Methylisobutylketone µg/m³ <0.15 <0.15 <0.15 2-Methylpentane µg/m³ 0.79 0.71 0.85 3-Methylpentane µg/m³ 0.25 0.2 0.28 Methyl-ter-butyl ether µg/m³ <0.15 <0.15 <0.15 Naphthalene µg/m³ <0.40 <0.40 <0.40 N-Nonane µg/m³ <0.21 <0.21 <0.21 N-Octane µg/m³ <0.19 <0.19 <0.19 n-Propylbenzene µg/m³ <0.17 <0.17 <0.17 Styrene µg/m³ <0.16 <0.16 <0.16 Tetrachloroethylene µg/m³ 0.44 0.37 0.6 Toluene µg/m³ 1.5 1.3 1.6 1,1,1-Trichloroethane µg/m³ <0.16 <0.16 <0.16 Trichloroethylene µg/m³ <0.14 <0.14 <0.14 Trichloromethane µg/m³ <0.13 <0.13 <0.13 124-Trimethylbenzene µg/m³ 0.4 0.36 0.4 N-Undecane µg/m³ 4.4 4.7 4 o-Xylene µg/m³ 0.3 0.24 0.27 m&p-Xylenes µg/m³ 0.76 0.71 0.79 C6-C10 µg/m³ 12 10 9.6 C6-C10 (ex BTEX) µg/m³ <9.4 <9.4 <9.4 >C10-C16 µg/m³ 37 48 51 >C10-C16 (less Naphthalene) µg/m³ 37 48 51

Radiello Duplicate RPD Analysis, 37-41 Cliff Street, Glenelg East, April 2015 Greencap Job Ref: J125792

RADIELLO DUPLICATE RPD ANALYSIS

Intra-laboratory Duplicate Analysis

2-M

ethy

l pen

tane

3-M

ethy

l pen

tane

Met

hyl-t

ert-b

utyl

eth

er

n-H

exan

e

Ethy

l-ter

t-but

yl e

ther

Met

hyl E

thyl

Ket

one

Ethy

l ace

tate

Brom

ochl

orom

etha

ne

Tric

hlor

omet

hane

1,1,

1-Tr

ichl

oroe

than

e

Met

hylc

yclo

pent

ane

Cyc

lohe

xane

Car

bon

Tetra

chlo

ride

Isob

utan

ol

Trim

ethy

l pen

tane

Benz

ene

12-d

ichl

oroe

than

e

n-H

epta

ne

Tric

hlor

oeth

ene

Buta

nol

1-M

etho

xy-2

-pro

pano

l

Met

hylc

yclo

hexa

ne

1,2-

Dic

hlor

opro

pane

Met

hyl m

etha

cryl

ate

Met

hyl I

sobu

tyl K

eton

e

Tolu

ene

Sample Date Laboratory µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube

Canopy (SGS) 20 - 27 April 2015

SGS 0.5 0.14 <0.1 0.24 <0.1 0.18 <0.1 <0.1 <0.1 <0.1 0.18 0.14 0.34 <0.1 0.12 0.34 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 1

QA1 (SGS) SGS 0.46 0.16 <0.1 0.28 <0.1 0.2 <0.1 <0.1 <0.1 <0.1 0.16 0.16 0.34 <0.1 0.12 0.3 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 1.02

RPD (%) 8 13 0 15 0 11 0 0 0 0 12 13 0 0 0 13 0 0 0 0 0 0 0 0 0 2

Inter-laboratory Duplicate Analysis

2-M

ethy

l pen

tane

3-M

ethy

l pen

tane

Met

hyl-t

ert-b

utyl

eth

er

n-H

exan

e

Ethy

l-ter

t-but

yl e

ther

Met

hyl E

thyl

Ket

one

Ethy

l ace

tate

Brom

ochl

orom

etha

ne

Tric

hlor

omet

hane

1,1,

1-Tr

ichl

oroe

than

e

Met

hylc

yclo

pent

ane

Cyc

lohe

xane

Car

bon

Tetra

chlo

ride

Isob

utan

ol

Trim

ethy

l pen

tane

Benz

ene

12-d

ichl

oroe

than

e

n-H

epta

ne

Tric

hlor

oeth

ene

Buta

nol

1-M

etho

xy-2

-pro

pano

l

Met

hylc

yclo

hexa

ne

1,2-

Dic

hlor

opro

pane

Met

hyl m

etha

cryl

ate

Met

hyl I

sobu

tyl K

eton

e

Tolu

ene

Sample Date Laboratory µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube


SGS 0.5 0.14 <0.1 0.24 <0.1 0.18 <0.1 <0.1 <0.1 <0.1 0.18 0.14 0.34 <0.1 0.12 0.34 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 1

QA2 (ALS) ALS <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0

RPD (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Page1 of 2

Radiello Duplicate RPD Analysis, 37-41 Cliff Street, Glenelg East, April 2015 Greencap Job Ref: J125792

RADIELLO DUPLICATE RPD ANALYSIS

Intra-laboratory Duplicate Analysis

N-O

ctan

e

Tetra

chlo

roet

hene

Buty

l ace

tate

Chl

orob

enze

ne

Ethy

lben

zene

m&p

-Xyl

enes

n-N

onan

e

1-M

etho

xy-2

-pro

pyl a

ceta

te

Styr

ene

o-Xy

lene

Isop

ropy

lben

zene

2-bu

toxy

etha

nol

Cyc

lohe

xano

ne

n-Pr

opyl

benz

ene

n-de

cane

124-

Trim

ethy

lben

zene

14-D

ichl

orob

enze

ne

2-et

hylh

exan

ol

n-U

ndec

ane

n-D

odec

ane

Nap

htha

lene

C6-

C10

>C10

-C16

C6-

C10

ex

BTEX

>C10

-C16

(-N

aph)

Sample Date Laboratory µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube


SGS <0.1 0.22 <0.1 <0.1 0.2 0.5 <0.1 <0.1 <0.1 0.16 <0.1 <0.1 <0.1 <0.1 0.24 0.18 <0.1 <0.1 1.14 2.76 <0.1 5.32 11.7 3.12 11.7

QA1 (SGS) SGS <0.1 0.2 <0.1 <0.1 0.2 0.5 <0.1 <0.1 <0.1 0.18 <0.1 <0.1 <0.1 <0.1 0.26 0.16 <0.1 <0.1 1.5 3.66 <0.1 5.16 12.24 2.96 12.24

RPD (%) 0 10 0 0 0 0 0 0 0 12 0 0 0 0 8 12 0 0 27 28 0 3 5 5 5

Inter-laboratory Duplicate Analysis

N-O

ctan

e

Tetra

chlo

roet

hene

Buty

l ace

tate

Chl

orob

enze

ne

Ethy

lben

zene

m&p

-Xyl

enes

n-N

onan

e

1-M

etho

xy-2

-pro

pyl a

ceta

te

Styr

ene

o-Xy

lene

Isop

ropy

lben

zene

2-bu

toxy

etha

nol

Cyc

lohe

xano

ne

n-Pr

opyl

benz

ene

n-de

cane

124-

Trim

ethy

lben

zene

14-D

ichl

orob

enze

ne

2-et

hylh

exan

ol

n-U

ndec

ane

n-D

odec

ane

Nap

htha

lene

C6-

C10

>C10

-C16

C6-

C10

ex

BTEX

>C10

-C16

(-N

aph)

Sample Date Laboratory µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube µg/tube


SGS <0.1 0.22 <0.1 <0.1 0.2 0.5 <0.1 <0.1 <0.1 0.16 <0.1 <0.1 <0.1 <0.1 0.24 0.18 <0.1 <0.1 1.14 2.76 <0.1 5.32 11.7 3.12 11.7

QA2 (ALS) ALS <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0

RPD (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Page2 of 2

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