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LIMITED CONTAMINATED SITE INVESTIGATION
PLANNINGMATTERS DEVELOPMENT SERVICES
CORNER OF BANNA AVENUE & BONEGILLA STREET,
GRIFFITH NSW
GS11-011
FEBRUARY 2011
AMENDED MARCH 2011
AITKEN ROWE TESTING LABORATORIES PTY LTD
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street, Griffith
Registration No: GS11-011 February 2011 Amended March 2011
TABLE OF CONTENTS
1 INTRODUCTION AND OBJECTIVES 1
1.1 INTRODUCTION 1
2 SCOPE OF WORK 1
3 SITE INFORMATION 2
3.1 SITE IDENTIFICATION 2
3.2 SITE DESCRIPTION 3
3.3 SURROUNDING LAND USE 3 3.4 TOPOGRAPHY & HYDROLOGY 4 3.5 GEOLOGY 4
4 SITE HISTORY 4
5 POTENTIAL SOURCES OF CONTAMINATION 5
6 FATE OF CONTANIMANTS 5
7 RESULTS 5
8 DISCUSSION OF RESULTS 7
9 COMMENTS & RECOMMENDATIONS 7
ADDENDUM 10
APPENDIX A – BOREHOLE LOCATION PLAN 11
APPENDIX B – BOREHOLE LOGS WITH EXPLANATORY
NOTES 13
APPENDIX C – LABORATORY TEST RESULTS AS
RECEIVED FROM ENVIROLAB 18
TABLES AND FIGURES
TABLE 1: SITE IDENTIFICATION SUMMARY 2
TABLE 2: SUMMARY OF POTENTIAL CONTAMINANTS 5
TABLE 3: ANALYTICAL RESULTS SUMMARY UPST AREA 6
FIGURE 1: SITE LOCATION 3
FIGURE 2: SITE PLAN SHOWING EXCAVATION ZONE 4
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
1
1 INTRODUCTION AND OBJECTIVES
1.1 INTRODUCTION
This report presents the findings of a limited Contaminated Site Investigation (CSI) performed at the United Service Station located on the corner of Banna Avenue and Bonegilla Street, Griffith, NSW (the site). Mr Martin Ruggeri of PlanningMatters Development Services commissioned the report on behalf of the property owner in response to Aitken Rowe Testing Laboratory P/L (ARTL) quotation (ARTL ref: Q10-315) dated 20th December 2010. It is understood that the current owner is assessing future options for the site and it is the purpose of this investigation to aid in the decision process. This amended report has been completed following advice PlanningMatters that the proposed future use of the site will be a retail bottle shop. It should be noted that this limited CSI has been completed without satisfying the NSW EPA sampling design guidelines for such sites.
1.2 OBJECTIVES
The main objectives of this limited CSI are to:
• Briefly document the site history.
• Assess potential sources of contamination.
• Assess the risk of these contaminant sources with respect to
the contamination status of the site.
• Conclude whether or not the site is suitable for continued
use as zoned without further assessment, or provide
recommendations for further assessment (if required) to
enable such conclusions.
2 SCOPE OF WORK
The scope of work undertaken by ARTL to meet the objectives comprised the following:
• Review of historical information including local Council information, anecdotal information and a search for previous investigations performed for the site.
• Review of geology, topography and hydrology of the site.
• Detailed site inspection and investigation including
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
2
- Power augering at 3 locations to 1.9 – 2.9m - Collection of 9 soil samples for analysis - Undertaking visual inspection for potential onsite
contamination.
• Laboratory analysis of representative soil samples for: - TPH - Total Petroleum Hydrocarbons (C6 - C9 and C10
- C36), 9 samples - BTEX – Benzene, Toluene, Ethylbenzene and
Xylenes, 9 samples - Lead, 9 samples
• Assessment of data collected during the investigation and analysis of results.
• The completion of a formal report presenting results, contamination assessment of the site and conclusions.
3 SITE INFORMATION 3.1 SITE IDENTIFICATION The site is located on the eastern fringe of the central business of Griffith in the South Western Slopes (as described by NSW National Parks and Wildlife Service) in New South Wales. Table 1 provides a brief summary of the site and Figure 1 displays the site. Table 1: Site Identification Summary
Street Address 90 – 94 Banna Avenue Griffith Title Identifier Lot A DP 420132 Local Government Area Griffith Shire Council
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
3
3.2 SITE DESCRIPTION
The site is currently listed as Lot A in DP 420132 Banna Avenue,
Griffith, NSW.
The site is currently used as a service station as noted at the time of the investigation. At the time of the investigation the site had been completely developed with building, awning and concrete driveway/parking area.
3.3 SUROUNDING LAND USE
Commercial properties completely surround the site. The site is
bound by Banna Avenue to the north and Bonegilla Street to the east
Banna Avenue
The Site
Figure 1: Site location (in red) shown in relation to Narrandera (© Department of Lands 2010).
Bo
neg
illa
Str
eet
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
4
and commercial properties immediately west and south. Further to the south lies Yambil Street and further west lies Jondaryan Avenue. 3.4 TOPOGRAPHY AND HYDROLOGY The natural topography of the site comprises slope gradients of less than 1% with a relief of less than 0.5m that form the generally flat floodplain of the Murrumbidgee River catchment. Onsite activities have ensured that surface runoff flows toward stormwater drains and associated network to the north and east. In times of excessive rain it is assumed that water would infiltrate the underlying materials through permeable areas of the site and infiltrate the groundwater system. Depth to groundwater is not known at the site.
3.5 GEOLOGY The general topography of the area is mainly flat. The 1:250,000 scale Geological Series sheet (SI 55-10) for Narrandera indicates that the area is underlain by flood plain deposits of Cainozoic Age, composed of gravel, sand, silt and clay which appeared to be underlain by Jimberro member of Cocoparra Group of Late Devonian Age, comprising sandstone and siltstone. The borehole investigation performed revealed that the site is underlain by a concrete slab to 0.1m overlying fill comprising fine to coarse grained sandy gravel and silty clayey sand which in turn is underlain by natural medium to high plasticity silty clay extending to the borehole refusal depth of 2.2m in BH1, 1.9m in BH2 and 2.9m in BH3. The borehole refusal on site appeared to be encountered on underlying floaters. Groundwater was not encountered in the excavation depth of 2.9m however it should be noted that variations to the water table level could fluctuate with changes to the season, temperature and rainfall. The borehole location plan is attached in Appendix A and borehole logs with explanatory note in Appendix B.
4 SITE HISTORY The site was originally developed and used as a fuel station which it remains as today. Discussions with PlanningMatters Development Services suggested that the owner has been thorough in maintaining stocktake records of fuel purchased versus fuel sold. To date there have been no significant discrepancies. A search of the NSW EPA website registered no current statutory notices issued under the provisions of the Contaminated Land Management Act 1997.
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
5
5 POTENTIAL SOURCES OF CONTAMINATION Based on the site history and site inspection, the potential
contaminants of concern are displayed in Table 2 below. Table 2: Summary of potential contamination sources/contaminants of concern from the fuel bowser area.
6 FATE OF CONTAMINANTS The fate of contaminants released into the environment is dependent on the properties of the chemicals and subsurface conditions. The available information indicates that the contaminants are likely to be liquid (hydrocarbons, BTEX and Lead).
7 RESULTS All analysis was undertaken by EnviroLab Pty Ltd, a NATA
accredited laboratory in Sydney. Quality assurance techniques were as per Labmark internal procedures. The laboratory test reports as received from EnviroLab Pty Ltd are attached in Appendix C.
Three boreholes (BH1, BH2 and BH3) were excavated immediately adjacent to the UPST’s to depths of 1.9m to 2.9m Below Ground Level (BGL). A total of 9 samples were taken at various depths for analysis. Table 3 summarises the analytical results and compares them to the following guidelines:
� Contaminated Sites – Guidelines for Assessing Service Station Sites, NSW Environment Protection Authority (EPA) (1994)
Area of Concern Potential Contaminant
Source
Potential Contaminants of Concern
UPST’s and fuel lines/bowsers
Petrol/Diesel Fuels
Petroleum Hydrocarbons
(TPH/BTEX) Lead
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
6
Sample ID
Sample Depth (m)
Analyte NSW EPA Guideline
(mg/kg) Result (mg/kg)
1A
0.4-0.6 (fill)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 8
1B
0.9-1.1 (natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 12
1C
1.9-2.1 (natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 43
TPH C10-C36 1000 1660
Lead 300 14
2A
0.4.-0.6 (fill)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 8
2B
1.2-1.4 (natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 11
Table 3: Analytical results summary UPST area. N.D – Not Detected
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
7
Sample
ID Sample
Depth (m) Analyte
NSW EPA Guideline (mg/kg)
Result (mg/kg)
2C
2.8-3.0 (natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 11
3A
0.4-0.6 (natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 12
3B 1.0-1.2
(natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 10
3C 2.3-2.5
(natural)
Benzene 1 N.D
Toluene 130 N.D
Total Xylene
25 N.D
TPH C6-C9 65 N.D
TPH C10-C36 1000 N.D
Lead 300 10
8 DISCUSSION OF RESULTS
As can be seen from Table 3 above sample 1C was found to have concentration of 1660mg/kg for TPH (C10-C36) which is above the guideline value (1000mg/kg) for sensitive land use. All other analytes for all samples were either not detected or had concentrations below the guideline value for sensitive land use.
9 COMMENTS AND RECOMMENDATIONS
One sample only was found to be above the threshold concentration for sensitive land use as given by the NSW EPA for TPH (C10-C36).
Table 3 (cont): Analytical results summary UPST area. N.D – Not Detected
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
8
The level of contamination is, however considered slight. Based on the fact that the property owner has apparently been following a strict stocktake of fuel purchased versus fuel sold it is likely that the cause of contamination is due to overfilling of the UPST as opposed to UPST failure. In addition the risk of human exposure is considered slight to non-existent due to the depth BGL of contamination and the majority of the site is covered (capped) with concrete. There is a risk of the contamination plume migrating off site or into groundwater. Again this risk is considered slight.
The following is recommended for the site to continue operating as a
service station;
1) Ensure fuel delivery operators are following appropriate due diligence process to reduce UPST overfilling.
2) Have suitably qualified personnel to perform integrity testing on the UPST’s and associated pipework to ensure there are no leaks.
3) Perform a detailed CSI that adheres to the minimum sampling
and analysis design guidelines to gain an understanding of the extent of contamination at the site.
4) Ensure the Protection of the Environment Operations (Underground Petroleum Storage Systems) Regulation 2008 is being adhered including the installation of groundwater monitoring wells and development of an Underground Petroleum Storage System management plan.
The following is recommended if the site use is changed from a service station to a retail bottle shop; 1) Have suitably qualified personnel decommission the UPST’s by
removal/disposal and backfilling the excavation with clean fill or by filling the UPST’s with a concrete slurry or similar. WorkCover should be notified of the decommission process.
2) If the UPST’s are excavated then a validation investigation should be completed to ensure any contaminated material has been removed for remediation and/or disposal.
3) If the UPST’s are to be filled with concrete slurry it is highly recommended to have suitably qualified personnel to perform further soil contaminant testing, particularly in the location of BH1. This will provide further understanding of the extent of contamination.
4) Following the decommissioning of the UPST’s the entire site should be capped with a concrete slab of at least 0.15m
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
9
thickness. Decommissioning UPST’s and capping such sites is considered suitable for remediation.
Nathan McLaren Environmental Consultant Aitken Rowe Testing Laboratories Pty Ltd
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
10
ADDENDUM
LIMITS OF INVESTIGATION
The recommendations made in this report are based on the assumption that the test results are representative of the overall subsurface conditions. However, it should be noted that even under optimum circumstances, actual conditions in some parts of the site may differ from those said to exist, because no environmental consultant, no matter how qualified, and no subsurface exploration program, no matter how comprehensive, can reveal all that is hidden by earth, rock and time. The client should also be aware that our recommendations refer only to our test site locations and the ground level at the time of testing. The recommendations in this report are based on the following:-
a) The information gained from this investigation b) The results received from a NATA accredited environmental laboratory c) Historical information d) Information supplied by the client
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
11
APPENDIX A BOREHOLE LOCATION PLAN
AITKEN ROWE TESTING LABORATORIES PTY LTD
REGISTRATION NUMBER: GS11-11
PLANNINGMATTERS DEVELOPMENT SERVICES – GRIFFITH, NSW
CONTAMINATED SITE INVESTIGATION
UNITED SERVICE STATION, CNR BANNA AVENUE & BONEGILLA ST, GRIFFITH
BOREHOLE LOCATION PLAN
Diesel Cap
Awning/Bowser Area
Building Car Wash
ULP Cap
Diesel Cap
BH3
BH2
BH1
Boundary
Boundary
Exit Entrance
Entrance
Entrance
Banna Avenue
Boneg
illa Road
N
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
12
APPENDIX B BOREHOLE LOGS WITH EXPLANATORY NOTE
Form R5 revised 14/12/05
Borehole No.: 1
AITKEN ROWE TESTING LABORATORIES PTY LTD Sheet No.: 1 of 1
Ground Level: Existing Date: 2/02/2011
Method: Auger drilling with TC Bit
US
CS
Sym
bol
Description
Dep
th (
m)
Mois
ture
Condit
ion
Consi
sten
cy/
Rel
. D
ensi
ty
Sample
Lab
. T
est
Remarks & Field Records
Type No. L.S %
GW
SC
0.5
CI-CH
1.0
CL-CI
1.5
2.0
2.5
3.0
3.5
Logged By: M.S.
Scale: As shown
Dry on Completion
Medium odour
Refusal on cobbles / floaters
MD
MC>PL
Slight odour
NATURAL
110mm
FILL: Appears to be moderately compacted
"Uncontrolled"
@ omc
Slight odour
FILL: Silty Clayey SAND; fine to coarse grained, brown,
St.
St.-VSt.
Silty CLAY; medium to high plasticity, red brown,
trace sand
CONCRETE SLAB
FILL: Sandy GRAVEL; fine to coarse sand, brown,
fine to coarse sand, fines of low plasticity
M
with fine to medium gravel
Silty CLAY; low to medium plasticity, yellow brown,
with fine to coarse sand and fine to medium gravel
D 1C
End of Borehole (BH1) @ 2.2m
D
D
1A
1B
Registration No.: GS11-11
Location: Cnr Banna Avenue Bonegilla Street, Griffith, NSW
Client: Planningmatters Developement Service Pty Ltd - Griffith, NSW
Form R5 revised 14/12/05
Borehole No.: 2
AITKEN ROWE TESTING LABORATORIES PTY LTD Sheet No.: 1 of 1
Ground Level: Existing Date: 2/02/2011
Method: Auger drilling with TC Bit
US
CS
Sym
bol
Description
Dep
th (
m)
Mois
ture
Condit
ion
Consi
sten
cy/
Rel
. D
ensi
ty
Sample
Lab
. T
est
Remarks & Field Records
Type No. L.S %
GW
CL-CI
0.5
CI-CH
1.0
CI-CH
1.5
CI
2.0
2.5
3.0
3.5
Logged By: M.S.
Scale: As shown
Dry on Completion
Refusal on cobbles / floaters
No odour
No odour
MD
MC>PL
NATURAL
@ omc
140mm
FILL: Appears to be moderately compacted
"Uncontrolled"
No odourFILL: Sandy Silty CLAY; low to medium plasticity, red St.
St.-VSt.
VSt.
trace sand
CONCRETE SLAB
FILL: Sandy GRAVEL; fine to coarse sand, brown,
fine to coarse sand, fines of low plasticity
D-M
brown, fine to medium sand, trace gravel
Silty CLAY; medium to high plasticity, red brown,
Silty CLAY; medium to high plasticity, brown, trace
sand and gravel
Silty CLAY; medium plasticity, yellow brown, with
fine to medium sand and gravel
End of Borehole (BH2) @ 1.9m
D 2C
D 2A
D 2B
Registration No.: GS11-11
Location: Cnr Banna Avenue Bonegilla Street, Griffith, NSW
Client: Planningmatters Developement Service Pty Ltd - Griffith, NSW
Form R5 revised 14/12/05
Borehole No.: 3
AITKEN ROWE TESTING LABORATORIES PTY LTD Sheet No.: 1 of 1
Ground Level: Existing Date: 2/02/2011
Method: Auger drilling with TC Bit
US
CS
Sym
bol
Description
Dep
th (
m)
Mois
ture
Condit
ion
Consi
sten
cy/
Rel
. D
ensi
ty
Sample
Lab
. T
est
Remarks & Field Records
Type No. L.S %
GW
CI
CI-CH 0.5
1.0
CI-CH
1.5
2.0
CI-CH
2.5
CL
3.0
3.5
Logged By: M.S.
Scale: As shown
Dry on Completion
fine to coarse sand, fine gravel
End of Borehole (BH3) @ 2.9m
Sandy Gravelly CLAY; low plasticity, yellow brown,
Silty CLAY; medium to high plasticity, yellow brown,
with fine to medium sand and gravel
trace sand
Silty CLAY; medium to high plasticity, yellow brown,
trace sand and gravel
MD
CONCRETE SLAB
FILL: Sandy GRAVEL; fine to coarse sand, brown,
fine to coarse sand, fines of low plasticity
D-M
FILL: Silty CLAY; medium plasticity, brown, with sand St.MC>PL
Silty CLAY; medium to high plasticity, red brown,
120mm
FILL: Appears to be moderately compacted
"Uncontrolled"
NATURAL
Slight odour
No odour
Refusal on cobbles / floaters
No odourD 3C
D 3A
D 3B
Registration No.: GS11-11
Location: Cnr Banna Avenue Bonegilla Street, Griffith, NSW
Client: Planningmatters Developement Service Pty Ltd - Griffith, NSW
PlanningMatters Development Services Limited Contaminated Site Investigation – Corner Banna Avenue and Bonegilla Street Griffith
Registration No: GS11-011 February 2011 Amended March 2011
13
APPENDIX C LABORATORY TEST REPORTS AS RECEIVED FROM ENVIROLAB
CERTIFICATE OF ANALYSISCERTIFICATE OF ANALYSIS 5137751377
Client:Client:
Aitken Rowe Testing Laboratories Pty LtdAitken Rowe Testing Laboratories Pty Ltd
4/2 Riedell St4/2 Riedell St
Wagga WaggaWagga Wagga
NSWNSW 26502650
Attention:Attention: Nathan McLarenNathan McLaren
Sample log in details:Sample log in details:
Your Reference:Your Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
No. of samples:No. of samples: 9 Soils9 Soils
Date samples received / completed instructions receivedDate samples received / completed instructions received 04/02/1104/02/11 // 04/02/1104/02/11
Analysis Details:Analysis Details:
Please refer to the following pages for results, methodology summary and quality control data.Please refer to the following pages for results, methodology summary and quality control data.
Samples were analysed as received from the client. Results relate specifically to the samples as received.Samples were analysed as received from the client. Results relate specifically to the samples as received.
Results are reported on a dry weight basis for solids and on an as received basis for other matrices.Results are reported on a dry weight basis for solids and on an as received basis for other matrices.
Please refer to the last page of this report for any comments relating to the results.Please refer to the last page of this report for any comments relating to the results.
Report Details:Report Details:
Date results requested by: / Issue Date:Date results requested by: / Issue Date: 11/02/1111/02/11 // 11/02/1111/02/11
Date of Preliminary Report:Date of Preliminary Report: Not IssuedNot Issued
NATA accreditation number 2901. This document shall not be reproduced except in full.NATA accreditation number 2901. This document shall not be reproduced except in full.
This document is issued in accordance with NATA's accreditation requirements.This document is issued in accordance with NATA's accreditation requirements.
Accredited for compliance with ISO/IEC 17025.Accredited for compliance with ISO/IEC 17025. Tests not covered by NATA are denoted with *.Tests not covered by NATA are denoted with *.
Results Approved By:Results Approved By:
Page 1 of 8Page 1 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
vTRH & BTEX in Soil
Our Reference: UNITS 51377-1 51377-2 51377-3 51377-4 51377-5
Your Reference ------------- GS11-11/1A GS11-11/1B GS11-11/1C GS11-11/2A GS11-11/2B
Depth ------------ 400-600mm 900-1100mm 1900-2100mm 400-600mm 1200-1400mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date extracted - 09/02/2011 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Date analysed - 10/02/2011 10/02/2011 10/02/2011 10/02/2011 10/02/2011
vTRH C6 - C9 mg/kg <25 <25 43 <25 <25
Benzene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5
Toluene mg/kg <0.5 <0.5 <0.5 <0.5 <0.5
Ethylbenzene mg/kg <1.0 <1.0 1.7 <1.0 <1.0
m+p-xylene mg/kg <2.0 <2.0 <2.0 <2.0 <2.0
o-Xylene mg/kg <1.0 <1.0 <1.0 <1.0 <1.0
Surrogate aaa-Trifluorotoluene % 77 77 81 76 75
vTRH & BTEX in Soil
Our Reference: UNITS 51377-6 51377-7 51377-8 51377-9
Your Reference ------------- GS11-11/2C GS11-11/3A GS11-11/3B GS11-11/3C
Depth ------------ 1700-1900mm 400-600mm 1000-1200mm 2300-2500mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date extracted - 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Date analysed - 10/02/2011 10/02/2011 10/02/2011 10/02/2011
vTRH C6 - C9 mg/kg <25 <25 <25 <25
Benzene mg/kg <0.5 <0.5 <0.5 <0.5
Toluene mg/kg <0.5 <0.5 <0.5 <0.5
Ethylbenzene mg/kg <1.0 <1.0 <1.0 <1.0
m+p-xylene mg/kg <2.0 <2.0 <2.0 <2.0
o-Xylene mg/kg <1.0 <1.0 <1.0 <1.0
Surrogate aaa-Trifluorotoluene % 76 79 76 78
Page 2 of 8Page 2 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
sTRH in Soil (C10-C36)
Our Reference: UNITS 51377-1 51377-2 51377-3 51377-4 51377-5
Your Reference ------------- GS11-11/1A GS11-11/1B GS11-11/1C GS11-11/2A GS11-11/2B
Depth ------------ 400-600mm 900-1100mm 1900-2100mm 400-600mm 1200-1400mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date extracted - 09/02/2011 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Date analysed - 09/02/2011 09/02/2011 09/02/2011 09/02/2011 09/02/2011
TRH C10 - C14 mg/kg <50 <50 660 <50 <50
TRH C15 - C28 mg/kg <100 <100 1,000 <100 <100
TRH C29 - C36 mg/kg <100 <100 <100 <100 <100
Surrogate o-Terphenyl % 88 90 # 91 88
sTRH in Soil (C10-C36)
Our Reference: UNITS 51377-6 51377-7 51377-8 51377-9
Your Reference ------------- GS11-11/2C GS11-11/3A GS11-11/3B GS11-11/3C
Depth ------------ 1700-1900mm 400-600mm 1000-1200mm 2300-2500mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date extracted - 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Date analysed - 09/02/2011 09/02/2011 09/02/2011 09/02/2011
TRH C10 - C14 mg/kg <50 <50 <50 <50
TRH C15 - C28 mg/kg <100 <100 <100 <100
TRH C29 - C36 mg/kg <100 <100 <100 <100
Surrogate o-Terphenyl % 87 92 87 90
Page 3 of 8Page 3 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
Acid Extractable metals in soil
Our Reference: UNITS 51377-1 51377-2 51377-3 51377-4 51377-5
Your Reference ------------- GS11-11/1A GS11-11/1B GS11-11/1C GS11-11/2A GS11-11/2B
Depth ------------ 400-600mm 900-1100mm 1900-2100mm 400-600mm 1200-1400mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date digested - 09/02/2011 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Date analysed - 09/02/2011 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Lead mg/kg 8 12 14 8 11
Acid Extractable metals in soil
Our Reference: UNITS 51377-6 51377-7 51377-8 51377-9
Your Reference ------------- GS11-11/2C GS11-11/3A GS11-11/3B GS11-11/3C
Depth ------------ 1700-1900mm 400-600mm 1000-1200mm 2300-2500mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date digested - 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Date analysed - 09/02/2011 09/02/2011 09/02/2011 09/02/2011
Lead mg/kg 11 12 10 10
Page 4 of 8Page 4 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
Moisture
Our Reference: UNITS 51377-1 51377-2 51377-3 51377-4 51377-5
Your Reference ------------- GS11-11/1A GS11-11/1B GS11-11/1C GS11-11/2A GS11-11/2B
Depth ------------ 400-600mm 900-1100mm 1900-2100mm 400-600mm 1200-1400mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date prepared - 9/02/2011 9/02/2011 9/02/2011 9/02/2011 9/02/2011
Date analysed - 10/02/2011 10/02/2011 10/02/2011 10/02/2011 10/02/2011
Moisture % 9.7 18 22 13 21
Moisture
Our Reference: UNITS 51377-6 51377-7 51377-8 51377-9
Your Reference ------------- GS11-11/2C GS11-11/3A GS11-11/3B GS11-11/3C
Depth ------------ 1700-1900mm 400-600mm 1000-1200mm 2300-2500mm
Date Sampled
Type of sample
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
2/02/2011
Soil
Date prepared - 9/02/2011 9/02/2011 9/02/2011 9/02/2011
Date analysed - 10/02/2011 10/02/2011 10/02/2011 10/02/2011
Moisture % 21 18 20 17
Page 5 of 8Page 5 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
Method ID Methodology Summary
GC.16 Soil samples are extracted with methanol and spiked into water prior to analysing by purge and trap GC-MS.
Water samples are analysed directly by purge and trap GC-MS.
GC.3 Soil samples are extracted with Dichloromethane/Acetone and waters with Dichloromethane and analysed
by GC-FID.
Metals.20
ICP-AES
Determination of various metals by ICP-AES.
LAB.8 Moisture content determined by heating at 105 deg C for a minimum of 4 hours.
Page 6 of 8Page 6 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Duplicate results Spike Sm# Spike %
Recovery
vTRH & BTEX in Soil Base ll Duplicate ll %RPD
Date extracted - 09/02/2
011
51377-1 09/02/2011 || 09/02/2011 LCS-3 09/02/2011
Date analysed - 09/02/2
011
51377-1 10/02/2011 || 10/02/2011 LCS-3 09/02/2011
vTRH C6 - C9 mg/kg 25 GC.16 <25 51377-1 <25 || <25 LCS-3 93%
Benzene mg/kg 0.5 GC.16 <0.5 51377-1 <0.5 || <0.5 LCS-3 75%
Toluene mg/kg 0.5 GC.16 <0.5 51377-1 <0.5 || <0.5 LCS-3 78%
Ethylbenzene mg/kg 1 GC.16 <1.0 51377-1 <1.0 || <1.0 LCS-3 103%
m+p-xylene mg/kg 2 GC.16 <2.0 51377-1 <2.0 || <2.0 LCS-3 105%
o-Xylene mg/kg 1 GC.16 <1.0 51377-1 <1.0 || <1.0 LCS-3 106%
Surrogate
aaa-Trifluorotoluene
% GC.16 81 51377-1 77 || 82 || RPD: 6 LCS-3 79%
QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Duplicate results Spike Sm# Spike %
Recovery
sTRH in Soil (C10-C36) Base ll Duplicate ll %RPD
Date extracted - 09/02/2
011
51377-1 09/02/2011 || 09/02/2011 LCS-5 09/02/2011
Date analysed - 09/02/2
011
51377-1 09/02/2011 || 09/02/2011 LCS-5 09/02/2011
TRH C10 - C14 mg/kg 50 GC.3 <50 51377-1 <50 || <50 LCS-5 93%
TRH C15 - C28 mg/kg 100 GC.3 <100 51377-1 <100 || <100 LCS-5 100%
TRH C29 - C36 mg/kg 100 GC.3 <100 51377-1 <100 || <100 LCS-5 78%
Surrogate
o-Terphenyl
% GC.3 91 51377-1 88 || 90 || RPD: 2 LCS-5 94%
QUALITY CONTROL UNITS PQL METHOD Blank Duplicate Sm# Duplicate results Spike Sm# Spike %
Recovery
Acid Extractable metals
in soil
Base ll Duplicate ll %RPD
Date digested - 09/02/2
011
51377-1 09/02/2011 || 09/02/2011 LCS-4 09/02/2011
Date analysed - 09/02/2
011
51377-1 09/02/2011 || 09/02/2011 LCS-4 09/02/2011
Lead mg/kg 1 Metals.20
ICP-AES
<1 51377-1 8 || 9 || RPD: 12 LCS-4 105%
QUALITY CONTROL UNITS PQL METHOD Blank
Moisture
Date prepared - 09/02/2
011
Date analysed - 10/02/2
011
Moisture % 0.1 LAB.8 <0.10
Page 7 of 8Page 7 of 8Envirolab Reference:Envirolab Reference: 5137751377
Revision No: RRevision No: R 0000
Client Reference:Client Reference: GS11-11, Contam. Site@United Service StnGS11-11, Contam. Site@United Service Stn
Report Comments:Report Comments:
Total Recoverable Hydrocarbons in soil:# Percent recovery is not possible to report Total Recoverable Hydrocarbons in soil:# Percent recovery is not possible to report
as the high concentration of analytes in the sample/s have caused interference.as the high concentration of analytes in the sample/s have caused interference.
Asbestos ID was analysed by Approved Identifier: Asbestos ID was analysed by Approved Identifier: Not applicable for this jobNot applicable for this job
Asbestos ID was authorised by Approved Signatory: Asbestos ID was authorised by Approved Signatory: Not applicable for this jobNot applicable for this job
INS: Insufficient sample for this testINS: Insufficient sample for this test PQL: Practical Quantitation LimitPQL: Practical Quantitation Limit NT: Not testedNT: Not tested
NA: Test not requiredNA: Test not required RPD: Relative Percent DifferenceRPD: Relative Percent Difference NA: Test not requiredNA: Test not required
<: Less than<: Less than >: Greater than>: Greater than LCS: Laboratory Control SampleLCS: Laboratory Control Sample
Quality Control DefinitionsQuality Control Definitions
Blank: This is the component of the analytical signal which is not derived from the sample but from reagents,
glassware etc, can be determined by processing solvents and reagents in exactly the same manner as for samples. glassware etc, can be determined by processing solvents and reagents in exactly the same manner as for samples.
Duplicate: This is the complete duplicate analysis of a sample from the process batch. If possible, the sample
selected should be one where the analyte concentration is easily measurable. selected should be one where the analyte concentration is easily measurable.
Matrix Spike: A portion of the sample is spiked with a known concentration of target analyte. The purpose of the matrix
spike is to monitor the performance of the analytical method used and to determine whether matrix interferences exist. spike is to monitor the performance of the analytical method used and to determine whether matrix interferences exist.
LCS (Laboratory Control Sample): This comprises either a standard reference material or a control matrix (such as a blank
sand or water) fortified with analytes representative of the analyte class. It is simply a check sample. sand or water) fortified with analytes representative of the analyte class. It is simply a check sample.
Surrogate Spike: Surrogates are known additions to each sample, blank, matrix spike and LCS in a batch, of compounds
which are similar to the analyte of interest, however are not expected to be found in real samples.which are similar to the analyte of interest, however are not expected to be found in real samples.
Laboratory Acceptance CriteriaLaboratory Acceptance Criteria
Duplicate sample and matrix spike recoveries may not be reported on smaller jobs, however, were analysed at a frequencyDuplicate sample and matrix spike recoveries may not be reported on smaller jobs, however, were analysed at a frequency
to meet or exceed NEPM requirements. All samples are tested in batched of 20. The duplicate sample RPD and matrixto meet or exceed NEPM requirements. All samples are tested in batched of 20. The duplicate sample RPD and matrix
spike recoveries for the batch were within the laboratory acceptance criteria.spike recoveries for the batch were within the laboratory acceptance criteria.
Duplicates: <5xPQL - any RPD is acceptable; >5xPQL - 0-50% RPD is acceptable.Duplicates: <5xPQL - any RPD is acceptable; >5xPQL - 0-50% RPD is acceptable.
Matrix Spikes and LCS: Generally 70-130% for inorganics/metals; 60-140% for organics and 10-140% for SVOC and Matrix Spikes and LCS: Generally 70-130% for inorganics/metals; 60-140% for organics and 10-140% for SVOC and
speciated phenols is acceptable.speciated phenols is acceptable.
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