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HELENA RIVER SURFACE WATER AND
SEDIMENT SAMPLING REPORT -
OCTOBER 2012 MONITORING EVENT
Prepared For: Metropolitan Redevelopment Authority
12 Lindsay StreetPerth, WA 6000
Report Number: AP2012-100
Report Version: V1
Report Date: 20 December 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Aurora EnvironmentalMRA2012-003_PMON Helena River_001_nb_v120 December 2012
DISTRIBUTION
No. of
copiesReport File Name
Report
StatusDate Prepared for: Initials
1MRA2012-003_PMON Helena
River_001_nb_V1V1 20 December 2012
Metropolitan
Redevelopment
Authority
NB
1MRA2012-003_PMON Helena
River_001_nb_V1V1
20 December 2012 Jeremy Hogben -
Appointed AuditorNB
1MRA2012-003_PMON Helena
River_001_nb_V1V1
20 December 2012
Proposal
Implementation
Monitoring Branch -
Office of the
Environmental
Protection Authority
NB
1MRA2012-003_PMON Helena
River_001_nb_V1V1
20 December 2012Andrew Miller, DEC -
Contaminated Sites
Branch
NB
1MRA2012-003_PMON Helena
River_001_nb_V1V1
20 December 2012Aurora Environmental
NB
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Aurora EnvironmentalMRA2012-003_PMON Helena River_001_nb_v120 December 2012
TABLE OF CONTENTS
ATTACHMENTS I
EXECUTIVE SUMMARY v
1 INTRODUCTION 1
1.1 BACKGROUND AND PURPOSE 1
1.2 OBJECTIVES 2
1.3 ENVIRONMENTAL SETTING 3
1.3.1 Groundwater and Surface Water Interaction 3
2 INVESTIGATION METHODOLOGY 5
2.1 SAMPLING LOCATIONS 5
2.1.1 Surface Water and Sediment 5
2.1.2 Stormwater Outlet 5
2.2 SAMPLING PROCEDURES 6
2.2.1 Surface Water Sampling 6
2.2.2 Sediment Sampling 6
2.2.3 Stormwater Outlet Sampling 6
2.3 FIELD QUALITY CONTROL 7
2.4 LABORATORY PROGRAM – ANALYTICAL SUITE 7
2.5 ASSESSMENT CRITERIA 8
2.5.1 Surface Water and Stormwater Outlets 8
2.5.2 Sediment 8
3 INVESTIGATION RESULTS – OCTOBER 2012 9
3.1 SURFACE WATER 9
3.1.1 Metals 9
3.1.2 Organic Compounds 9
3.2 SEDIMENT 9
3.2.1 Metals 9
3.2.2 Organic Compounds 10
3.3 STORMWATER OUTLET 10
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3.3.1 Metal 11
3.3.2 Organic Compounds 11
4 DATA QUALITY EVALUATION 12
4.1 FIELD QUALITY ASSURANCE AND CONTROL 12
4.2 RINSATE BLANK, FIELD BLANK AND TRANSPORT BLANK 13
4.3 LABORATORY QUALITY ASSURANCE 13
4.4 HOLDING TIMES 14
4.5 LABORATORY LIMITS OF REPORTING 15
4.6 DATA QUALITY SUMMARY 16
5 DISCUSSION 17
5.1 HISTORICAL TRENDS IN SURFACE WATER AND SEDIMENT CONTAMINANT
CONCENTRATIONS 17
5.1.1 Surface Water 17
5.1.2 Sediment 19
5.2 STORMWATER OUTLETS 20
6 CONCLUSIONS AND RECOMMENDATIONS 22
7 BIBLIOGRAPHY 24
TABLES IN TEXT
A. Helena River Sampling Locations
B. Concentrations of TPH in the Helena River Sediment (October 2012)
C. Summary of Laboratory Data Outside of RPD or Spike Criteria
D. Summary of Holding Time Breaches for the October 2012 Sampling Round
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ATTACHMENTS
LIST OF TABLES
1. Helena River Surface Water Analytical Results, October 2012
2. Summary of Historical Helena River Surface Water Analytical Results
3. Helena River Sediment Analytical Results, October 2012
4. Summary of Historical Helena River Sediment Analytical Results
5. Stormwater Outlet Analytical Results, October 2012
LIST OF FIGURES
1. Regional Location
2. Surface Water, Sediment and Stormwater Outlet Sample Locations
LIST OF APPENDICES
A. Survey Plan of Surface Water and Sediment Sampling Locations
B. October 2012 Field Notes
B. Chain of Custody Documentation and Laboratory Certificates
C. Laboratory Quality Control Reports
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µg/kg microgram(s) per kilogram
µg/L microgram(s) per litre
µS Microsiemens
ADWG Australian Drinking Water Guidelines
ANZECC Australian and New Zealand Environment and Conservation Council
ARL Analytical Reference Laboratories
ARMCANZ Agriculture and Resource Management Council of Australia and New Zealand
As Arsenic
ATA ATA Environmental
Aurora Aurora Environmental
BGL Below Ground Level
BOM Bureau of Meteorology
C6-C36 Hydrocarbon chainlength fraction
CaCO3 calcium carbonate
Cd Cadmium
COC Chain of Custody
Cr Chromium
Cu Copper
DEC Department of Environment and Conservation
DNPG Domestic Non-Potable Groundwater
DoH Department of Health
DoW Department of Water
DWG Drinking Water Guidelines
E East
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EC Electrical Conductivity
EIF Environments Incident Form
ETF Engine Test Facility
FWG Fresh Water Guidelines
GCMS gas chromatography mass spectrometry
GPS Global Positioning System
GPT Gross Pollutant Trap
Hg Mercury
HMFWG hardness-modified freshwater guideline
ICPMS Inductively coupled plasma mass spectrometry
ICPOES Inductively coupled plasma optical emission spectrometry
ISO International Organisation for Standardisation
ISQG Interim Sediment Quality Guidelines
km Kilometre
LOD Limit of Detection
LOR Limit of Reporting
LSA Lower Superficial Aquifer
m Metre
mg/kg milligram(s) per kilogram
mg/L milligram(s) per litre
MRA Midland Redevelopment Authority
MS Ministerial Statement
N North
NATA National Association of Testing Authorities
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NHMRC National Health and Medical Research Council
Ni Nickel
NMI National Measurement Institute
NRMMC National Resource Management Ministerial Council
ºC degree(s) Celcius
PAH Polycyclic Aromatic Hydrocarbon(s)
Pb Lead
PC Polycarbonate
PER Public Environmental Review
QC Quality Control
RPD Relative Percent Difference
SSA Shallow Superficial Aquifer
TDS Total Dissolved Solids
TPH Total Petroleum Hydrocarbon
TV trigger value
VOC Volatile Organic Compounds
Zn Zinc
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EXECUTIVE SUMMARY
Aurora Environmental (Aurora) was engaged by the Metropolitan Redevelopment Authority to assess
and report on surface water and sediment quality of the Helena River and stormwater effluent being
discharged from outlets along the southern embankment (the Site). This monitoring event has been
undertaken to satisfy, in part, Conditions 12-4 and 12-5 of Ministerial Statement 742 relating to the
wider Helena East Precinct area. The monitoring event has been completed in accordance with the
Post-Remedial Surface and Groundwater Management Plan produced by Coffey Environments which
outlines the post remedial sampling and analysis requirements for the Helena East Precinct and also
takes into consideration the ‘Helena East Precinct Remediation and Redevelopment, Public
Environmental Review prepared by ATA Environmental.
OBJECTIVES
Objectives for this monitoring event include:
Ensure compliance with Conditions 12-4 and 12-5 of Ministerial Statement 742.
Assess if contaminant concentrations in surface water and sediment are, at a minimum,
consistent with historic concentrations or demonstrating declining trends in contaminants of
potential concern;
Assess if concentrations of contaminants of potential concern from stormwater outlets along
the southern embankment are suitable to be discharged; and
Assess if identified receptors associated with the Helena River are sufficiently protected with
respect to identified contaminants of potential concern.
KEY FINDINGS
The key findings of this monitoring event include:
No concentrations of polycyclic aromatic hydrocarbons, monocyclic aromatic hydrocarbons or
halogenated aliphatic and aromatic hydrocarbons were detected in any surface water,
sediment or stormwater outlet sample collected from the Helena River during the October
2012 sampling round.
No concentrations of total petroleum hydrocarbons were detected in any surface water or
stormwater outlet sample collected from the Helena River during the October 2012 sampling
round.
Concentrations of total petroleum hydrocarbons in the Helena River sediment appear to be
decreasing over time, with the exception of the upstream sampling location which suggests
hydrocarbon impacts are more likely a reflection of the quality of run-off from the greater
Midland area, including roads. A portion of the hydrocarbon concentrations detected within
the sediment of the Helena River may be from a naturally occurring source.
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All surface water samples reported concentrations of metals less than laboratory detection
limits, with the exception of barium, which reported a consistent concentration in all samples
collected, well below the adopted assessment criteria.
Lead concentrations in surface water have been reported below laboratory detection limits in
the last two sampling rounds, this trend suggests lead concentrations in the surface water of
the Helena River are influenced by source(s) outside of the Workshops site but will continue to
be assessed as part of ongoing monitoring commitments until at least October 2014.
Concentrations of copper and zinc in surface water are most likely influenced by source(s)
outside of the Workshops site, but will continue to be assessed as part of ongoing monitoring
commitments until at least October 2014.
Arsenic, antimony and hexavalent chromium were detected below laboratory detection limits
at all sediment sampling locations. Barium, cadmium, chromium, copper, manganese, nickel,
lead and zinc were detected at concentrations below adopted assessment criteria.
Concentrations of lead reported in the Helena River sediment samples were below adopted
assessment criteria. Trends suggest that concentrations of lead in sediment are influenced by
source(s) outside of the Workshops site, but will continue to be assessed as part of ongoing
monitoring commitments until at least October 2014.
Tin marginally exceeded the low trigger value in sediment at one location in the Helena River.
As there is no baseline data to compare this exceedence to, further sampling rounds are
required to compare this data to and form a better assessment of its impact on the Helena
River aquatic environment. No detectable levels of dissolved tin was present in the Helena
River surface water samples, therefore tin concentrations do not appear to be impacting
surface water quality.
Arsenic, antimony, cadmium, chromium, hexavalent chromium, nickel, lead and tin were
detected below laboratory detection limit at both stormwater sampling locations.
Concentrations of barium, copper, manganese and zinc were detected at concentrations above
laboratory detection limit in one or both of the stormwater outlet sampling points. Zinc and
copper both exceeded the freshwater guideline but not the domestic non potable guideline. As
Helena River surface water and sediment results have not reported elevated concentrations of
zinc or copper, the concentrations reported in the Western Stormwater Outlet have not had
an adverse effect on the Helena River environment and as such the risks to environmental and
human health receptors are low. These concentrations will continue to be monitored and
assessed in further sampling rounds.
CONCLUSIONS AND RECOMMENDATIONS
Overall, contaminant concentrations in surface water and sediment remain either consistent with
historic concentrations or demonstrate declining trends. Concentrations of contaminants of potential
concern in the stormwater outlets sampled are suitable to be discharged along the southern
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embankment, with concentrations of zinc and copper to be re-assessed in the next round of
sampling. No adverse effects are considered to be occurring to identified receptors associated with
the Helena River aquatic environment.
To satisfy Condition 12-7 of Ministerial Statement 742, it is recommended that this report is placed
on the MRA website (http://www.mra.wa.gov.au/publications/publications.phtml) for the life of the
project. Sampling of the Helena River should be undertaken on an annual basis for a further two
years, minimum, to satisfy Condition 12-5 of Ministerial Statement 742.
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1 INTRODUCTION
Aurora Environmental (Aurora) was engaged by the Metropolitan Redevelopment Authority (MRA) to
assess and report on surface water and sediment quality of the Helena River and stormwater being
discharged from outlets along the southern embankment (the Site; see Figure 1. This monitoring
event has been undertaken to satisfy, in part, Conditions 12-4 and 12-5 of Ministerial Statement (MS)
742 relating to the wider Helena East Precinct area. The monitoring event has been completed in
accordance with the monitoring plan ‘Post-Remedial Surface and Groundwater Management Plan’
(PGSWMP) produced by Coffey Environments (2012) which outlines the post remedial sampling and
analysis requirements for the Helena East Precinct and also takes into consideration the ‘Helena East
Precinct Remediation and Redevelopment, Public Environmental Review’ (PER) (ATA, 2006).
1.1 BACKGROUND AND PURPOSE
Sampling of the Helena River was undertaken by Aurora in order to assess potential environmental
impacts of contaminated soil and groundwater throughout the former Midland Workshops site on
the aquatic environment of the Helena River. The Helena East Precinct represents one of the last
significant portions of the former Midland Railway Workshops to undergo remedial works as part of
the rehabilitation and remediation of the broader workshops site. It is important that the water
quality of the Helena River is monitored following the remedial works to assess the efficacy of the
works undertaken and to protect the health and safety of site users together with the environment
from any potential risks that could eventuate from a potential decline in water quality.
Using information derived from the assessment and remedial works undertaken at the workshops
site Coffey Environments prepared the PGSWMP (Coffey Environments, 2012) which outlines the
objectives and scope for work to be completed as part of the monitoring program. The monitoring
program has been reviewed and endorsed by the Contaminated Sites Auditor, Mr Jeremy Hogben of
Environmental Resources Management (ERM) Australia, as part of the Helena East Precinct, Midland,
Former Railway Workshops, WA, Remediation and Validation Report Part 3, Mandatory Auditors
Report (ERM Australia, 2012) for the Helena East Precinct. The implementation of this PGSWMP
forms an environmental management commitment of the Public Environmental Review (PER) (ATA,
2006) and also Conditions 12-1 to 12-7 of MS 742. Key Ministerial requirements include:
Under Condition 12-1, the PGSWMP is required to be prepared and submitted for regulatory
approval within six months of the completion of remedial works. The PGSWMP should address
both groundwater monitoring and Helena River water quality monitoring;
Under Condition 12-2, groundwater and surface water target concentrations should be
developed that are consistent with baseline water quality data or applicable published
assessment criteria;
Under Condition 12-3, where adopted groundwater and surface water target concentrations
are exceeded, corrective action should be taken;
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Under Condition 12-4 the proponent is required to monitor groundwater around the Helena
East Precinct, the Southern Embankment1 and the Meat Industry Association Containment
Cell2 and the water of the Helena River in accordance with sampling locations and a schedule
approved by the Chief Executive Officer (CEO) of the DEC. This condition also requires
monitoring of the Southern Embankment. It is anticipated that this should be addressed in a
separate document (i.e. not included in PGSWMP);
Under Condition 12-5, the surface and groundwater monitoring plan must operate for a
minimum of three years;
Under Condition 12-7, the proponent shall make the monitoring reports required by the
PGSWP publicly available.
Baseline sampling of the Helena River commenced in 2006 as part of the investigations for the
remediation of the Helena East Precinct, as detailed in the Public Environmental Review (PER)
document (ATA, 2006). Biannual sampling (February and October) was conducted in 2006 quarterly
sampling (March, June, September and December) was conducted in 2007, tri-yearly (April, August
and November) in 2008, and annually in June 2010, July 2011 and October 2012. It should be noted
that no sampling was undertaken in 2009 and therefore the October 2012 monitoring event
represents the twelfth sampling round of the Helena River surface water and sediment. Surface
water and sediment sampling points are identified in Figure 2.
During Helena East subdivision works a stormwater management system was installed as per the
Stormwater Discharge Strategy (Egis, 2002). There are two stormwater outlets located in the
Southern Embankment (see Figure 2). The eastern outlet services the eastern portion of the site and
is located approximately 10m southeast of the main service tunnel. The stormwater piping system
has not yet been installed in the eastern site area since Sector 10D/10E subdivision works have not
yet been completed, thus as expected the eastern outlet was not discharging when inspected in
October 2012. The second storm water outlet is located 10m southwest of the main service tunnel
(see Figure 2). In this area several large excavations were required during remedial works to remove
contaminated material, and these were largely filled with clayey material. Although the excavations
were filled and compacted as per engineering specifications to prevent any underground pooling of
stormwater, a passive system was installed to drain away any seepage of water from around former
excavations. Disposal of seepage water (although only minimal seepage, if any, from this pipe is
expected) is via a PVC pipe which traverses through the Southern Embankment and ends beneath
the clean fill cover (see Figure 2). The potential for other off-site sources, such as stormwater from
surrounding roads and industrial activities also exists.
1.2 OBJECTIVES
Objectives for surface water, sediment and stormwater outlet sampling include:
1The Southern Embankment is being assessed as part of the Annual Groundwater Monitoring Report for
Helena East.2
The Meat Industry Association Containment Cell was assessed under a separate cover.
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Ensure compliance with the PGSWMP and Conditions 12-4 and 12-5 of MS 742.
Assess if contaminant concentrations in surface water and sediment are, at a minimum,
consistent with historic concentrations or demonstrating declining trends in chemicals of
potential concern (COPCs);
Assess if COPC concentrations from stormwater outlets along the southern embankment are
suitable to be discharged;
Assess if identified receptors associated with the Helena River are sufficiently protected with
respect to identified COPCs.
1.3 ENVIRONMENTAL SETTING
The regional location of the Helena River is presented in Figure 1. The Helena River is located
approximately 75m south of the former Midland Workshops (Figure 2). The river generally flows east
to west, and although the volume increases in the rainy winter months, seasonal flooding no longer
occurs since the Mundaring Weir was installed approximately 22km upstream in 1903. The Helena
River is considered to be ephemeral.
The following information regarding the geological/hydrogeological setting has been summarised
from Crisalis (2006). The geological succession beneath the site comprises approximately 30m of the
Guildford Formation, overlying 5m of the Henley Sandstone (Osborne Formation), which in turn
overlies the Leederville Formation. Groundwater within the Guildford Formation is present within
the shallow superficial aquifer (SSA) and the lower superficial aquifer (LSA). The SSA is hosted within
discontinuous sandy clay and clay layers, which are generally of low hydraulic conductivity, and
extends to approximately 10m below ground surface (mbgs). Groundwater is encountered at depths
of 3 to 5mbgs, and flows in a southwest direction towards the Helena River. The LSA comprises
coarser grained sandy sediments with a higher hydraulic conductivity than the SSA. The LSA is
effectively confined by the SSA system. In contrast to the SSA, groundwater flow direction in the LSA
is west-northwest parallel to the Helena River. Pump tests indicate that there is little connection
between the LSA/Osborne Formation and the Leederville aquifer, this is discussed further is Section
1.3.1. The Pinjar Shale Member of the Leederville Formation acts as an aquiclude between the
LSA/Osborne Formation and the underlying water bearing horizons of the Leederville Formation.
1.3.1 Groundwater and Surface Water Interaction
The riverbed is scoured into clay-rich soils which overlie the LSA on the floodplain. It has been
assumed that the groundwater quality of the LSA does not significantly impact the Helena River as
the LSA predominantly flows parallel to the Helena River. In addition to groundwater flow direction,
there are multiple lines of evidence that indicate that the Helena River is ephemeral and not in
hydraulic connection to the LSA:
• The reliance of rainfall for flow in the Helena River;
• The relative water levels of the Helena River bed and the LSA; and
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• Electrical conductivity of the river compared to groundwater.
Based on the lines of evidence provided, and following a review of previous reports on Helena West
hydrogeology (Crisalis, 2006), groundwater from the LSA is not expected to impact the Helena River,
as there is no complete groundwater migration pathway.
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2 INVESTIGATION METHODOLOGY
2.1 SAMPLING LOCATIONS
2.1.1 Surface Water and Sediment
As per the PER (ATA, 2006) sampling locations were selected to be representative of conditions up-
gradient, adjacent to, and down-gradient of the Helena East Precinct. Surface water and sediment
sampling was undertaken at five locations along the river bed on 15 October 2012 (see Figure 2). The
locations have previously been surveyed (July 2011) and the survey plan is provided as Appendix A.
The surface water and sediment sampling locations are summarised in Table A.
TABLE A
HELENA RIVER SAMPLING LOCATIONS
SAMPLE LOCATION
IDENTIFICATION*
SURVEYED
COORDINATES
(MGA50)
DESCRIPTION
HR-2 E 406160.7
N 6470206.0South bank, accessed from Stirling Crescent.
HR-1E 405956.6
N6470394.6North bank, accessed from Helena East.
HR-3E405798.1
N6470410.1
North bank, accessed from Helena East, samplinglocation on upstream side of old wooden bridge.
HR-5E 405385.3
N 6470747.9
South bank, accessed through ‘Men of the Trees’Nursery Site (off Amherst Road).
HR-4E 405235.9
N 6470723.3
South bank, accessed through ‘Men of the Trees’Nursery Site, sampling location under Amherst Roadbridge.
*Sample locations listed in order of upstream (east) to downstream (west).
2.1.2 Stormwater Outlet
The sampling locations of the three drainage outlets are shown on Figure 2. Two of the three
locations had sufficient water to collect a sample, they were:
Passive Drain Outlet; and
Western Stormwater Outlet.
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It was not expected to obtain a sample from the third drainage outlet location, the Eastern
Stormwater Outlet, as the storm water piping system has not yet been installed.
2.2 SAMPLING PROCEDURES
2.2.1 Surface Water Sampling
All surface water grab samples were labeled, collected and analysed in accordance with the methods
described in AS/NZS 5667.1.1998 and 5667.6.1998 (Standards Australia, 1998a and 1998b).Sample
containers with no preservative were filled directly by inverting the bottle mounted on a 2m length
pole, and plunging it mouth downwards to a depth of approximately 0.3 m below the surface. The
bottle was then tilted so the mouth pointed slightly upwards and directed upstream so as to avoid
sediment entrainment. Sample containers with preservative were filled by decanting from the
unpreserved plastic container attached to the pole. To minimise the possibility of cross
contamination between sample locations, a new collection bottle was used at each sampling
location. Once filled, the sample containers were placed in an esky with ice, held at Aurora’s offices
in a dedicated sample refrigerator and dispatched to the laboratory the following day. Surface water
samples were labeled HR-W, followed by the sample location ID number (e.g. HR-W-1) (see Table A).
Sample details were entered onto a chain of custody (CoC) form that accompanied the samples to
the laboratory. Field notes are presented in Appendix B whilst CoC documentation and laboratory
certificates are presented in Appendix C.
Note: CoC documentation and laboratory certificates include analytical results from groundwater
monitoring wells sampled as part of the same field work program in October 2012 across the wider
Helena East Precinct. Groundwater analytical results are reported under a separate cover.
2.2.2 Sediment Sampling
In consultation with AS5667.12:1999 (Standards Australia, 1999), river sediment samples (labeled
HR-S, followed by the sample location ID number e.g. HR-S-1) were collected using a plastic trowel.
To avoid the potential for cross contamination the plastic trowel was cleaned using a solution of
detergent and tap water, and rinsed with de-ionised water between each sample location. Within
arm’s reach of the water’s edge, the trowel was pushed approximately 5cm into the sediment (this
material is most likely to represent ‘recent’ deposits). The trowel was slowly pulled up and the
sediment deposited directly into pre-labeled jars (a layer of water associated with the sample covers
the sediment in the jar). The sampling was repeated a further two times to fill each jar. Once filled,
the sample containers were placed in an esky with ice and transported to the laboratory the next
day. Sample details were entered onto a CoC form that accompanied the samples to the laboratory.
Field notes for the collection of the Helena River sediment samples are presented in Appendix B
whilst COC) documentation and laboratory certificates are presented in Appendix C.
2.2.3 Stormwater Outlet Sampling
All stormwater outlet samples were labeled, collected, prepared and analysed in accordance with the
methods described in AS/NZS 5667.1.1998 and 5667.6.1998 (Standards Australia, 1998a and 1998b).
Laboratory supplied containers with the appropriate preservative were filled by holding the bottle in
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the stream of water coming from the outlet. To minimise the possibility of cross contamination
between sample locations, one set of bottles was used at each sampling location and submitted to
the laboratory. Once filled, the sample containers were placed in an esky with ice and transported to
the laboratory the next day.
Stormwater outlet samples were labeled as per their location on Figure 2 i.e. Western Stormwater
Outlet and Passive Drain Outlet. Sample details were entered onto a CoC form that accompanied the
samples to the laboratory. Field notes for the collection of the stormwater outlet samples are
presented in Appendix B whilst CoC documentation and laboratory certificates for all surface water
samples are presented in Appendix C.
2.3 FIELD QUALITY CONTROL
To decrease the chances of cross contamination, all non-disposable sampling equipment was
decontaminated prior to, and after use. This involved washing with a solution of ‘Decon 90’ and tap
water, followed by a rinse with deionised water. No field blanks or transport blanks were collected;
this is discussed further in Section 4.
Field duplicate samples were collected at a rate of 1:10. Field duplicate samples are used to assess
field and analytical precision measurement which is assessed using the relative percent differences
(RPD) between the primary and duplicate sample results. Generally, it is recommended that the RPD
is less than 30-50% (Standards Australia, 2005). For the purposes of this assessment, replicate data
with concentrations above 10 times the LOR should have a RPD <30% and replicate data with
concentrations below 10 times the LOR should have RPD <50%.
2.4 LABORATORY PROGRAM – ANALYTICAL SUITE
All surface water, sediment and stormwater outlet samples were analysed for the following COPCs:
Metals (arsenic, antimony, barium, cadmium, chromium, hexavalent chromium, copper,
manganese, nickel, tin, lead and zinc);
Total Petroleum Hydrocarbons (TPH);
Monocyclic Aromatic Hydrocarbons (MAH);
Polycyclic Aromatic Hydrocarbons (PAH); and
Halogenated Aliphatic and Aromatic Hydrocarbons (HAH).
With the exception of MAH and HAH analyses, all analyses were undertaken by Analytical Reference
Laboratories (ARL), which is National Association of Testing Authorities (NATA) accredited for all
analyses performed. MAH and HAH analyses was subcontracted by ARL to the National
Measurement Institute (NMI), who are NATA accredited for this analysis.
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2.5 ASSESSMENT CRITERIA
2.5.1 Surface Water and Stormwater Outlets
The Helena River is considered, based on historic total dissolved solid (TDS) concentrations to be a
freshwater aquatic environment and as such, the following action levels have been adopted in
accordance with the PGSWMP (Coffey Environments, 2012):
Australian and New Zealand guidelines for fresh and marine water quality (ANZECC &
ARMCANZ, 2000) where toxicants are to be compared against the 95% protection level for
aquatic ecosystems, as presented in the DEC (2010) Assessment Levels for Soil, Sediment and
Water; and
Department of Health (DoH) Contaminated Sites Reporting Guideline for Chemicals in
Groundwater (DoH, 2006) as presented in the DEC (2010).
Historically when metal concentrations exceeded the FWG, the hardness-modified FWG (HMFWG)
value was calculated using Table 3.4.4 of ANZECC and ARMCANZ (2000). The hardness correction
values were not required for the October 2012 analytical results, as all reported concentrations were
below FWG values, however they have been included in the historical results table.
Additionally, the Helena river water results were compared to the Australian Drinking Water
Guidelines (ADWG) (2004), however, the likelihood of water from the Helena River being used for
drinking purposes is improbable. Since the ADWG were historically used, they are still included in the
historical results table for completeness, but have been removed from the current analytical results.
As the stormwater outlets are being used to assess inputs to the Helena River, it is considered
appropriate to assess these analytical results against the same criteria as surface water to ensure
there are no unacceptable concentrations of COPCs being released into the Helena River
Environment.
2.5.2 Sediment
The sediment assessment levels (Interim Sediment Quality Guidelines or ISQGs) adopted by DEC and
presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010) are sourced from the
Australian and New Zealand Guidelines for Fresh and Marine Water Quality (ANZECC & ARMCANZ,
2000). The guidelines contain two concentrations, the ISQG-Low concentration (or trigger value) and
the ISQG-High concentration. The trigger value is a threshold concentration and below this
concentration the frequency of adverse effects is expected to be very low. The ISQG-High
concentration is intended to represent a concentration above which adverse biological effects are
expected to occur more frequently. The initial assessment should be done against the ISQG-Low
concentration (or trigger value) with further investigations/analysis if these levels are exceeded.
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3 INVESTIGATION RESULTS – OCTOBER 2012
3.1 SURFACE WATER
A summary of the October 2012 surface water analytical results are presented in Table 1. Historical
surface water analytical results are presented in Table 2. CoC documentation and laboratory
certificates are presented in Appendix C.
3.1.1 Metals
Concentrations of all dissolved metals analysed (arsenic, antimony, cadmium, chromium, hexavalent
chromium, copper, manganese, nickel, tin, lead and zinc) were below the laboratory limit of
reporting (LOR), with the exception of barium. Concentrations of barium in five surface water
samples collected along the Helena River were 40µg/L. This concentration is below the DoH (2006)
DNP guideline value of 7,000µg/L; there is no FWG value for barium. The identical barium
concentrations for surface water samples were confirmed by the laboratory. ARL obtained the same
results off two different instruments (inductively coupled plasma optical emission spectrometry
[ICPOES] and inductively coupled plasma mass spectrometry [ICPMS]) and from different subsamples
on different days (email from Douglas Todd [ARL] on 17 December 2012).
3.1.2 Organic Compounds
No concentrations of TPH, PAH, MAH or HAH were detected above laboratory LOR in any sample.
3.2 SEDIMENT
A summary of the October 2012 sediment analytical results are presented in Table 3 whilst historical
sediment analytical results are presented in Table 4. CoC documentation and laboratory certificates
are presented in Appendix C.
3.2.1 Metals
Concentrations of barium, cadmium, chromium, copper, manganese, nickel, tin, lead and zinc were
detected at concentrations above laboratory LOR, however, none exceeded the ISQG-Low criteria,
with the exception of tin. One concentration of tin (7mg/kg) detected in sediment sample HR-S-5
(downstream) exceeded the ISQG-Low criterion value of 5mg/kg. This concentration did not exceed
the ISQC-High criterion value of 70mg/kg.
Metal concentrations were generally highest at HR-S-4 (downstream) and generally lowest at both
HR-S-1 (midstream) and HR-S-5 (downstream). HR-S-4 is located in close proximity to Amherst Road.
Concentrations of arsenic, antimony and hexavalent chromium were detected below laboratory LOR
at all sediment sampling locations.
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3.2.2 Organic Compounds
No concentrations of PAH, MAH or HAH were detected above laboratory LOR in any sample. No
concentrations of TPH chain lengths C6-9 and TPH >C36 were detected above laboratory LOR in any
sample. Concentrations of TPH chain lengths C10-14, C15-28 and C29-36 were detected above LOR at every
sediment sample location as presented in Table B.
TABLE B
CONCENTRATIONS OF TPH IN THE HELENA RIVER SEDIMENT (OCTOBER 2012)
SAMPLE LOCATION
IDENTIFICATION *
TPH CONCENTRATIONS (mg/kg)
C6-9 C10-14 C15-28 C29-36 C>36
HR-S-2
(Upstream) <0.2 34 24 8.1 <0.4
HR-S-1 <0.2 2.1 3.2 1.0 <0.4
HR-S-1 <0.2 8.2 6.2 2.3 <0.4
HR-S-1 <0.2 3 7.5 4.5 <0.4
HR-S-4(Downstream)
<0.2 24 16 3.8 <0.4
Notes:
Bold red text indicates the highest value detected across the samples.
Bold text indicates the lowest value detected across the samples.
*Sample locations listed in order of upstream (east) to downstream (west)
As seen in the Table B TPH C10-14 was detected at concentrations ranging from 2.1 to 34mg/kg. TPH
C15-28 was detected at concentrations ranging from 3.2 to 24mg/kg and TPH C29-36 was detected at
concentrations ranging from 1 to 8.1mg/kg. There are no applicable assessment criteria values for
these compounds in sediment. TPH concentrations were highest at the furthermost upstream
sampling location (HR-S-2) and lowest at the next upstream sampling location (HR-S-1), located
downstream from HR-S-2.
3.3 STORMWATER OUTLET
A summary of the October 2012 stormwater outlet analytical results are presented in Table 5. CoC
documentation and laboratory certificates are presented in Appendix C.
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3.3.1 Metal
Concentrations of arsenic, antimony, cadmium, chromium, hexavalent chromium, nickel, lead and tin
in stormwater outlet samples were detected below laboratory LOR at both locations (Western
Stormwater Outlet and Passive Drain Outlet) (see Figure 2)
Concentrations of barium, copper, manganese and zinc were detected above laboratory LOR in one
or both of the stormwater outlet sampling points, however, no metal concentrations exceeded
adopted assessment criteria with the exception of zinc and copper. The concentration of zinc (230
µg/L) exceeded the FWG value (8µg/L) and the concentration of copper (2µg/L) marginally exceeded
the FWG value (1.4µg/L) at the Western Stormwater Outlet point.
3.3.2 Organic Compounds
No concentrations of TPH, PAH, MAH or HAH were detected above laboratory LOR in any stormwater
outlet sample analysed.
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4 DATA QUALITY EVALUATION
Quality Assurance/Quality Control (QA/QC) checks are made to assess data in terms of completeness,
representativeness, comparability, accuracy and precision in order to meet the data quality
objectives. All samples were collected, stored and transported to the laboratory consistent with
Standards Australia (1998a, 1998b and 1999). The sample collection techniques and storage and
transportation conditions have previously been reported in Section 2.
4.1 FIELD QUALITY ASSURANCE AND CONTROL
A total of 7 primary water samples along with one duplicate sample (QC1, duplicate of HR-W-4) were
submitted for analysis. A total of five primary sediment samples along with one duplicate (QC2
duplicate of HR-S-4) were submitted for laboratory analysis. Field duplicates for the surface water
and sediment investigation were collected and analysed at a frequency equal to or greater than one
in ten (10%).
For the purposes of this assessment, replicate data with concentrations above 10 times the LOR
should have a RPD <30% and replicate data with concentrations below 10 times the LOR should have
RPD <50%. All duplicates were found within the acceptable RPD range of 30%-50% (Standards
Australia, 2005) for surface water and stormwater outlet samples. All sediment samples were found
within the acceptable RPD range with the exception of those discussed below.
Of the 11 RPD percentages that were able to be determined from the primary and duplicate
sediment samples (i.e. where concentrations of an analyte were above the LOR in both the primary
and duplicate sample), all were outside the acceptable range. Eight of the elevated RDP percentages
were recorded in association with barium, cadmium, chromium, copper, manganese, nickel, lead and
zinc. Metal concentrations in sediment are notoriously variable due to their distribution in
heterogeneous soils, potential influences of recent rainfall events and water flow variations along the
stream bed. It is likely that this variation combined with the low concentrations reported for copper,
marginally exceeding the laboratory LOR and small differences between primary and duplicate
results, is responsible for the elevated RPD percentage calculated for copper between QC2 and HR-S-
4. RPD exceedences recorded in the remaining seven metals are considered to be as a result of
sample variation due to the heterogeneous nature of the sediments collected. Analytical results from
the primary and duplicate samples used to determine the elevated RPD percentages remained below
the adopted assessment criteria or indicated the presence of impact where assessment criteria was
not available (barium and manganese). On this basis, the apparent lack of accuracy and/or precision
represented by these RPD percentages are not considered to adversely affect the interpretation of
data in this assessment.
Three of the elevated RPD percentages were determined from TPH C10-14, C15-28 and C29-36. There are
no applicable assessment criteria for TPH concentrations in sediment, however all primary and
duplicate samples reported the presence of impact. On this basis, the apparent lack of accuracy
and/or precision represented by these RPD percentages are not considered to adversely affect the
interpretation of data in this assessment.
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4.2 RINSATE BLANK, FIELD BLANK AND TRANSPORT BLANK
No equipment rinsate, field or transport blanks were collected on the 15 October 2012 when the
Helena River surface water, sediment and Western Stormwater Outlet were sampled, due to human
error, which resulted in the samples being excluded from submission to the laboratory. A combined
field blank / transport blank sample (QC6) and rinsate blank (QC7) were collected and submitted to
the laboratory for analysis on the 17 October 2012 when the Passive Drain Outlet sample was
collected. QC sample QC6 was analysed for TPH and QC7 was analysed for TPH, PAH and metals.
Neither sample reported concentrations above laboratory LOR indicating that cross-contamination
was unlikely to have occurred on 17 October 2012. This provides some support that potential cross
contamination caused by background levels of COPCs during sampling on the 15 October 2012
was not likely. The Helena River sampling program will continue for a further two years on an
annual basis and this sampling round provides an ongoing assessment of trends in analytes
detected within the surface water, sediment and stormwater outlets. On this basis the lack of
rinsate, field and transport blanks collected on the 15 October 2012 is not considered to
compromise the integrity of the analytical results.
4.3 LABORATORY QUALITY ASSURANCE
Laboratory QA/QC procedures and results are detailed in the certified laboratory quality control
reports contained in Appendix D. Primary soil, sediment and stormwater outlet samples (including
field QC samples) were submitted to ARL. ARL is NATA accredited for the laboratory analysis
performed. HAH and MAH was subcontracted by ARL to NMI who are NATA accredited for this
analysis. PAHs were analysed by both ARL and NMI, both laboratories are NATA accredited for this
analysis.
The analytical methods implemented and reporting by the laboratory were performed in accordance
with the NATA accreditations and consistent with Schedule B(3) of the NEPM (NEPC, 1999). The
laboratories reported an adequate range and frequency of data quality information (including
laboratory duplicates, control samples, surrogate recoveries and spike recoveries) for the purposes
of this assessment. All laboratory QC data were within acceptable limits with the exception of those
summarised in Table C.
TABLE C
SUMMARY OF LABORATORY DATA OUTSIDE RPD OR SPIKE CRITERIA
ANALYTE RESULTS (%) ACCEPTABLE CRITERIA (%)
Laboratory QC report 12-7335 - Laboratory Duplicates (RPDs)1
TPH C10-C14 91 0-25
TPH C15-C28 69 0-25
TPH >C16 – C34 83 0-25
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ANALYTE RESULTS (%) ACCEPTABLE CRITERIA (%)
Laboratory QC report 12-7435 – Matrix Spike2
Chromium (dissolved) 135 60-120
Notes:1
Laboratory duplicate RPD percentages calculated from sample 12-7335-6 (QC2 – duplicate of HR-S-4)
2Laboratory matrix spike percentages calculated from sample 12-7404-1 (not a sample from our batch)
The laboratory RPDs, which have exceeded the ARL acceptable criteria of 25% are most likely
attributed to sample heterogeneity, as per the RPDs calculated for primary and duplicate samples.
The sample from which the laboratory duplicates were calculated was collected from Site and used
to calculate the primary / duplicate data reported in Section 4.1.2. This is not considered to adversely
affect the interpretation of data in this assessment as all primary and duplicate samples reported the
presence of TPH impact. One matrix spike recovery was reported outside of acceptable criteria limits
(60-120%). The sample from which the matrix spike was calculated was not a sample collected from
Site. Therefore the reason for the elevated matrix spike cannot be determined. However, elevated
spike recovery results are not a concern as they show possible false positive results, ensuring impacts
are not marginalized.
4.4 HOLDING TIMES
Laboratory analysis was undertaken in accordance with Schedule B(3) of the NEPM (NEPC, 1999) or
Australian Standards (1998b, 1999 and 2005) and using NATA accepted analytical procedures. All
analytes were extracted and analysed within holding times with the exception of those presented in
Table D.
TABLE D
SUMMARY OF HOLDING TIME BREACHES FOR THE OCTOBER 2012 SAMPLING ROUND
ANALYTES MATRIX
LAB
REPORT
NUMBER
SAMPLES
AFFECTED PRESERVATION
DATE
SAMPLED
DATE
EXTRACTED
HOLDING
TIME*
ACTUAL
HOLDING
TIME
Hexavalent
Chromium
Water 12-7335 Stored on ice
and acidified
15/10/12 17/10/12 1 day 2 days
12-7435 17/10/12 19/10/12
PAH Water 12-7435 Stored on ice 17/10/12 25/10/12 7 days 8 days
MAH WaterRn940973
Stored on ice
and acidified
15/10/12 23/10/127 days 8 days
Rn941350 17/10/12 25/10/12
HAH Water Rn940973 Stored on ice 15/10/12 23/10/12 7 days 8 days
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ANALYTES MATRIX
LAB
REPORT
NUMBER
SAMPLES
AFFECTED PRESERVATION
DATE
SAMPLED
DATE
EXTRACTED
HOLDING
TIME*
ACTUAL
HOLDING
TIME
Rn941350 and acidified 17/10/12 25/10/12
* As recommended in Australian Standard (1998b)
As indicated in Table D, hexavalent chromium, MAH and HAH were extracted from all surface water
and stormwater outlet samples marginally outside of holding times (one day). PAHs were analysed
outside of holding times for one sample only (Passive Drain Outlet).
The samples were stored in closed eskies during collection and delivery to the laboratory and stored
in Aurora’s office in a dedicated sample refrigerator overnight. The laboratory ensures all samples
requiring refrigeration are stored appropriately upon receipt until analysis is performed. This is done
in accordance with ARL policy and the International Organisation for Standardization (ISO) and
Australian Standard (AS) requirements, which helps to ensure the stability of the analyte. In addition,
all samples analysed for hexavalent chromium, PAH, MAH and HAH reported concentrations less
than laboratory LOR which is consistent with historical results. On this basis it is likely that the one
day holding time exceedence combined with the appropriate storage techniques and consistency
with historical results had a negligible effect on results.
4.5 LABORATORY LIMITS OF REPORTING
Laboratory LORs were considered appropriate for the project, with the exception of the following
PAHs for sediment analysis:
• Acenaphthene – Laboratory LOR = 100 µg/kg, FWG = 16 µg/kg
• Acenaphthalene – Laboratory LOR = 100 µg/kg, FWG = 44 µg/kg
• Fluorene -– Laboratory LOR = 100 µg/kg, FWG = 19 µg/kg
• Anthracene – Laboratory LOR = 100 µg/kg, FWG = 85 µg/kg; and
• Dibenz[a,h]anthracene – Laboratory LOR = 200 µg/kg, FWG = 63 µg/kg.
In situations where the assessment criteria for analytes are higher than the lowest laboratory LOR
achieved by commercial NATA-accredited chemical laboratories, the DEC will accept the use of the
laboratory LOR as assessment criteria provided that the chemical analysis has been undertaken using
the most sensitive NATA-accredited technique available. The samples were analysed at a NATA
accredited laboratory (ARL) to the lowest concentration ARL can detect and as no PAHs have been
detected in any sample in the recent or historical sampling rounds, therefore this is not considered to
affect the integrity of the results.
Mercury was not analysed during the October 2012 sampling round, however it has been analysed
and reported previously, and the results are presented in Table 2. The LOR for mercury (0.1µg/L) has
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historically always exceeded the FWG (0.06µg/L) which is the lowest concentration that the
laboratory (ARL) can detect. Mercury has not been detected in any sample historically and therefore
this LOR is not considered to be an issue for the purpose of data interpretation.
4.6 DATA QUALITY SUMMARY
Overall, the data quality information provides confidence that the data is of acceptable quality to
serve as a basis for interpretation for the purposes of this assessment and environmental assessment
of the Site.
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5 DISCUSSION
The results of the October 2012 Helena River surface water and sediment monitoring event are
compared to historical results (from February 2006 to July 2011) in order to assess any potential
impacts from the former Midland Workshops Site and remedial works completed to date. As
previously indicated, stormwater outlets have not in the past been sampled and as such, this
sampling event (with the exception of the Eastern Stormwater Outlet, which has not yet been
completed) is considered to represent the initial baseline study.
5.1 HISTORICAL TRENDS IN SURFACE WATER AND SEDIMENT CONTAMINANT
CONCENTRATIONS
5.1.1 Surface Water
Sampling of the Helena River surface water was first conducted by ATA Environmental in February
2006 (historical and recent analytical results are presented in Table 2). The following comments are
considered to be the salient observations:
The current round of monitoring did not record concentrations of TPH or VOCs above LOR,
which is generally consistent with historical monitoring data.
TPH was detected in surface water samples HR-W-2 and HR-W-5 in the April 2008 sampling
event. The detections of TPH in April 2008 was attributed to heavy rainfall received in this area
during this time and the run-off from surrounding urban area.
VOCs (chloroform (4.8µg/L), bromodichloromethane (2.4µg/L) and dibromochloromethane
(1.2µg/L)) were detected in the June 2010 sampling event at sample location HR-W-1.
However, as no guideline values exist for any of these analytes, and the concentrations were
all less than x10 the LOR (<1mg/L) these results are not considered to affect the overall
interpretation of historical results. No VOCs were detected in the October 2012 sampling
round.
The previous sampling round undertaken in July 2011 detected concentrations of naphthalene
in two surface water samples HR-W-DUP, the duplicate sample of HR-W-4 (0.01µg/L) and HR-
W-3 (0.14µg/L). In the same round, concentrations of 2-methylnaphthalene were also
detected in surface water sample HR-W-1 (0.01µg/L) and HR-W-3 (0.01µg/L). These reported
concentrations did not exceed adopted assessment criteria. No other organics were detected
in the surface water samples collected during the July 2011 sampling round, which is unusual
as PAH detections are often associated with TPH compounds. Naphthalene and 2-
methylnaphthalene have not been detected historically and were not detected in the October
2012 analytical results. Therefore the earlier PAH detections are considered to be anomalous
and not an indication of PAH impact within the surface water of the Helena River.
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Arsenic, cadmium, chromium, hexavalent chromium and nickel were all recorded at
concentrations below the laboratory LOR for the October 2012 sampling round, which is
generally consistent with historical sampling events.
Barium and manganese have not been analysed for in the surface water of the Helena River
historically. Barium results were consistent across all samples collected from the Helena River
surface water, suggesting background levels in the river. Manganese was identified in the
waste fill along the southern embankment and Helena West area, therefore further
assessment of potential manganese concentrations was warranted in the Helena River. Results
from the October 2012 sampling round reported manganese to be below laboratory LOR in
surface water samples collected.
Concentrations of lead have historically been reported marginally above the laboratory LOR in
all samples with one exceedence of the FWG historically recorded in April 2008 at location HR-
W-5. Lead concentrations reported in the last two monitoring rounds (July 2011 and October
2012) have been below laboratory LOR. This trend suggests lead concentrations in the surface
water of the Helena River are influenced by source(s) outside of the Workshops site but will
continue to be assessed as part of ongoing monitoring commitments until at least October
2014.
Concentrations of copper and zinc were reported below laboratory LOR during the October
2012 sampling round. Copper and zinc concentrations have been historically been elevated in
surface water samples and have been identified as possible contaminants of the Helena River
(Coffey Environments, 2011b). Chart 1 presents the trend of copper concentrations in the
Helena River surface water samples since monitoring commenced in 2006. The graph shows
that copper has historically been present predominately at low concentrations in the Helena
River surface water. The spike in concentrations recorded in April 2008 is attributed to a heavy
rainfall event, causing large volumes of run-off from the surrounding urban area. Two large
storm water outlets fitted with Gross Pollutant Traps located upstream of the Helena River
were reported by Coffey Environments (2011b) to have overflowed with significant erosion
down-gradient to the south. No copper concentration spikes have been reported since April
2008. This trend suggests copper concentrations in the surface water of the Helena River are
influenced by source(s) outside of the Workshops site but will continue to be assessed as part
of ongoing monitoring commitments until at least October 2014.
Chart 2 presents the trend of zinc concentrations in the Helena River surface water samples
since monitoring began in 2006. The zinc concentration spike in April 2008, coinciding with the
spike of copper, is also attributed to the heavy rainfall event during this time, which caused
large volumes of run-off from surrounding urban area. Another spike of zinc was reported in
June 2010. Rainfall during May 2010 was higher than normal, but not as large as the rainfall
recorded in April 2008 (BOM, 2012). This amount of rainfall would likely cause an increased
level of run-off from the urbanised area (industrial and residential) that is located north of the
former Workshops site lies within the stormwater drainage catchment. Given that the
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furthermost upstream sample (HR-W-2) reported the highest concentrations, an off-site
source is more likely.
Copper and zinc were not detected above FWG in the DoW 2009 reports summarised in the
Swan River Trust Summary Paper (2009). These samples were collected at least 3km
downstream from the former Midland Workshops Site.
5.1.2 Sediment
Sampling of the Helena River sediment was first conducted by ATA Environmental in February 2006
(historical data and recent analytical results are presented in Table 4). Notable observations include
the following:
No PAHs or VOCs have ever been detected at any sampling location in sediment samples.
Lead concentrations were below the ISQG-Low trigger value for all samples in the October
2012 sampling event. Lead has been reported above the ISQG-Low trigger value at sediment
sampling location HR-S-3 during the four previous sampling events (August 2008, November
2008, June 2010 and July 2011) and at sediment sampling location HR-S-5 for three
consecutive rounds prior to July 2011 (August 2008, November 2008 and June 2010).
Concentrations of lead have been reported above the ISQG-Low trigger value historically in
non-consecutive sampling rounds at sediment sampling location HR-S-4, and exceeded the
trigger value on one occasion in March 2007 at sediment sampling location HR-S-1.
Chart 3 displays trends in lead concentrations detected in the Helena River sediment samples
since monitoring first began in 2006. The graph shows a spike during the August 2008
monitoring round, which could be attributed to the large amount of rainfall received in April
2008, allowing time for the run-off from the surrounding area, to settle and deposit in the
sediment. This trend suggests that concentrations of lead in sediment are influenced by
source(s) outside of the Workshops site, but will continue to be assessed as part of ongoing
monitoring commitments until at least October 2014.
Zinc concentrations have been reported below the ISQG-Low trigger value of 200mg/kg in all
historical and recent analytical results, with the exception of June 2010, when zinc was
recorded at sediment sampling location HR-S-5 at a concentration of 320mg/kg. This data
suggests that the June 2010 result was anomalous (see Chart 4). It is considered that the
concentrations of zinc that are present below the trigger value in the Helena River sediment
are likely to represent background levels.
The concentration of tin detected at sediment sample location HR-S-5 marginally exceeded the
ISQG-Low trigger value. As tin has not been analysed for historically, there is no baseline data
with which to make a comparison. As only one sample marginally exceeded the ISQG-Low
trigger value and was considerably less than the ISQG-High value, which represents the
concentration above which adverse biological effects are expected to occur more frequently,
this is not considered to be a large risk to environmental or human health receptors.
Subsequent Helena River sampling rounds will provide more information as to the
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concentrations of tin within the sediment of the Helena River. No detectable levels of
dissolved tin was present in the Helena River surface water samples, therefore tin
concentrations do not appear to be impacting surface water quality.
Barium and manganese have not been analysed within the sediment of the Helena River
historically. Manganese was included in the analytical suite for sediment due to its presence in
waste fill, located within the southern embankment and Helena West area. Reported results
from the October 2012 sampling round for both barium and manganese will be used as a
baseline for the subsequent Helena River sampling rounds, as no relevant assessment criteria
exist for these analytes.
All other metal concentrations remained below ISQG-low criteria and were similar to the
historical rounds of sediment sampling.
Concentrations of TPH were less than those recorded during the previous sampling event in
July 2011 at all sampling locations with the exception of HR-S-2 (upstream). TPH was first
detected in the Helena River sediment in March 2007 and have been detected in every round
since, apart from June 2007. Chart 5 shows the concentration trend of TPH chain lengths C10-36
in the Helena River sediment from when sampling first commenced in 2006 and suggests that
concentrations of TPH in the Helena River sediment are, overall decreasing with time.
Hydrocarbon contamination was detected and remediated at the Helena East site during the
period that Helena River sediment sampling has been undertaken. Whilst long term migration
of site-source contaminated groundwater cannot be eliminated as a contributing source to the
presence of TPH concentrations within the Helena River, it is considered more likely that the
source of impacted sediment within the Helena River may be a reflection of the quality of in-
flowing stormwater from the greater Midland area and/or the soil quality along the Helena
River floodplain. This is supported by the relatively higher TPH concentrations at the upstream
sampling location (HR-S-2) only. The close proximity of the sampling locations, particularly HR-
S-4, to roads may also be a contributing source of TPH in sediment, resulting from run-off.
Additionally, it is possible that a portion of the hydrocarbons in the sediment may be from a
naturally occurring source e.g. organic matter in the sediment. A silica gel pre-treatment was
undertaken on sediment samples during the June 2010 sampling round, after the samples
were run through the gas chromatography mass spectrometry and the predominant element
of the sediment samples were hydrocarbons with a C15 base (Coffey Environments, 2011a and
2011b). One of the compound groups that are of this structure are sesquiterpenes, which are
found naturally in plants and insects as semiochemicals. Semiochemicals are a chemical
substance or mixture of chemical substances produced by an organism and used for
communication e.g. defensive agents or pheromones.
5.2 STORMWATER OUTLETS
The initial round of data shows that no COPCs from the Passive Drain Outlet are being discharged at
unacceptable concentrations along the southern embankment. Zinc and copper are the only COPC
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being discharged above adopted assessment criteria from the Western Stormwater Outlet.
Concentrations of zinc and copper reported during the October 2012 sampling round in surface
water were all below laboratory LOR. Concentrations of zinc and copper reported in the sediment
samples collected in the October 2012 sampling round were all well below the adopted assessment
criteria. Therefore the elevated zinc and copper concentrations reported in the Western Stormwater
Outlet have not had an adverse effect on the Helena River environment. Trends of zinc and copper
will continue to be monitored and assessed in subsequent Helena River sampling rounds. At present,
the river appears to be unaffected and as such the risks to environmental and human health
receptors are low.
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6 CONCLUSIONS AND RECOMMENDATIONS
This monitoring event was undertaken to assess if there have been any adverse environmental
impacts on the aquatic environment of the Helena River which is situated to the south of the Former
Midland Railway Workshops. Based on the monitoring results the following conclusions are made.
No concentrations of PAH, MAH or HAHs were detected in any surface water, sediment or
stormwater outlet sample collected from the Helena River during the October 2012 sampling
round.
No concentrations of TPH were detected in any surface water or stormwater outlet sample
collected from the Helena River during the October 2012 sampling round.
Concentrations of TPH in the Helena River sediments appear to be decreasing over time, with
the exception of the upstream sampling location which suggests hydrocarbon impacts are
more likely a reflection of the quality of run-off from the greater Midland area, including roads
within the vicinity of the sampling location. A portion of the hydrocarbon concentrations
within the sediment of the Helena River may also be from a naturally occurring source.
All surface water samples reported concentrations of metals less than laboratory LOR, with the
exception of barium, which reported a consistent concentration in all samples collected. It is
noted that the concentrations of barium recorded are below the adopted assessment criteria
and as such, this is not considered to represent a risk to the aquatic environment.
Lead concentrations in surface water have been reported below laboratory LOR in the last two
sampling rounds but will continue to be assessed as part of ongoing monitoring commitments
until at least October 2014. In addition, concentrations of copper and zinc in surface water are
most likely influenced by source(s) outside of the Workshops site, but will continue to be
assessed as part of ongoing monitoring commitments until at least October 2014.
Concentrations of arsenic, antimony and hexavalent chromium were reportedly below
laboratory LOR at all sediment sampling locations. Concentrations of barium, cadmium,
chromium, copper, manganese, nickel, lead and zinc were reported below adopted assessment
criteria.
Concentrations of lead reported in the Helena River sediment samples were below adopted
assessment criteria. Trends suggest that concentrations of lead in sediment are influenced by
source(s) outside of the Workshops site, but will continue to be assessed as part of ongoing
monitoring commitments until at least October 2014.
Concentrations of tin marginally exceeded the ISQG-Low trigger value in sediment at one
location in the Helena River. As there is no baseline data to compare this exceedence to and as
such additional sampling rounds are required to compare this data to and form a better
assessment of its impact on the Helena River aquatic environment. No detectable levels of
dissolved tin was present in the Helena River surface water samples, therefore tin
concentrations do not appear to be impacting surface water quality and as such
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Aurora Environmental 23MRA2012-003_PMON Helena River_001_nb_V120 December 2012
concentrations of tin in sediment will be further assessed as part of the next scheduled annual
monitoring event (October 2013).
Concentrations of arsenic, antimony, cadmium, chromium, hexavalent chromium, nickel, lead
and tin were reported below laboratory LOR at both stormwater sampling locations.
Concentrations of barium, copper, manganese and zinc were detected above laboratory LOR in
one or both of the stormwater outlet sampling points. Concentrations of zinc and copper both
exceeded the FWG but not the DNP guideline. As Helena River surface water and sediment
results have not reported elevated concentrations of zinc or copper, the concentrations
reported in the Western Stormwater Outlet do not appear to have had an adverse effect on
the quality of the Helena River and as such the risks to environmental and human health
receptors are considered to be low. Metal concentrations in stormwater outlets will continue
to be monitored and assessed as part of future monitoring events scheduled (October 2014).
Overall, contaminant concentrations in surface water and sediment remain either consistent with
historic concentrations or demonstrate declining trends. COPCs concentrations recorded in
stormwater outlets are suitable to be discharged along the southern embankment, with
concentrations of zinc and copper required to be reviewed in the next scheduled monitoring event.
To satisfy Condition 12-7 of MS 742, it is recommended that this report is placed on the MRA website
(http://www.mra.wa.gov.au/publications/publications.phtml) for the life of the project. Sampling of
the Helena River should be undertaken on an annual basis for a further two years, minimum, to
satisfy Condition 12-5 of MS 742.
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Aurora Environmental 24MRA2012-003_PMON Helena River_001_nb_V120 December 2012
7 BIBLIOGRAPHY
ANZECC and ARMCANZ (2000) Australian Water Quality Guidelines for Fresh and Marine Water
Quality.
ATA (2006) Helena East Precinct Remediation and Redevelopment: Public Environmental Review.
Report No. 2005/142. ATA Environmental, Perth. Prepared for the Midland Redevelopment
Authority.
Bureau of Meterology (BOM) (2012) Monthly Rainfall - Midland. Accessed online:
http://www.bom.gov.au/jsp/ncc/cdio/weatherData/av?p_nccObsCode=139&p_display_type=dataFil
e&p_startYear=&p_c=&p_stn_num=009025 on 13 December 2012.
Coffey Environments (2009b) Helena West Groundwater Monitoring Program: April 2008.
EP2009/002. Coffey Environments, Perth. Prepared for the Midland Redevelopment Authority.
Coffey Environments (2009c) Areas B, C and D Groundwater Monitoring Program: October/
November 2008. EP2009/022. Coffey Environments, Perth. Prepared for the Midland Redevelopment
Authority.
Coffey Environments (2009d) Clayton Precinct Area E Groundwater Monitoring Program:
November 2008. EP2009/008. Coffey Environments, Perth.
Coffey Environments (2011a) Helena River Water and Sediment Monitoring Program: June 2010
Results. EP2010/179, V1. Coffey Environments, Perth. Prepared for the Midland Redevelopment
Authority.
Coffey Environments (2011b) Post-Remedial Surface and Groundwater Management Plan, Helena
East Precinct, Former Railway Workshops, Midland. EP2011/182, V1. Coffey Environments, Perth.
Prepared for the Midland Redevelopment Authority.
Coffey Environments (2012) Post-Remedial Surface and Groundwater Management Plan, Helena East
Precinct, Former Railway Workshops, Midland. EP2011/182, V2. Coffey Environments, Perth.
Prepared for the Midland Redevelopment Authority.
Crisalis (2006) Review and Recommendation on Groundwater Monitoring at Helena East, Helena
West and within Areas B, C D and Area E, Midland Railway Workshops. Prepared for the Midland
Redevelopment Authority.
DEC (2010) Assessment Levels for Soil, Sediment and Water, Version 4, Revision 1. Department of
Environment and Conservation (DEC).
DoH (2006) Contaminated Sites Reporting Guideline for Chemicals in Groundwater. Department of
Health Publication.
EGIS (2002) Stormwater Discharge Strategy from the Midland Redevelopment Authority into the
Helena River Floodplain. Egis Consulting, Perth. In: Helena West Environmental Management System,
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Aurora Environmental 25MRA2012-003_PMON Helena River_001_nb_V120 December 2012
Report No. 04.011/RP00, Nov 2005. Prepared for the Midland Redevelopment Authority. ENV.
Australia (ENV), Perth.
ERM Australia (2012) Helena East Precinct, Midland, Former Railway Workshops, WA, Remediation
and Validation Report Part 3, Mandatory Auditors Report. Reference: 0064828. Prepared for the
Metropolitan Redevelopment Authority, July 2012.
NHMRC/NRMMC (2004) National Water Quality Management Strategy Australian Drinking Water
Guidelines 2004.
Standards Australia (1998a) Water Quality - Sampling - Guidance on sampling of rivers and streams
AS5667.6:1998. Standards Australia, Homebush.
Standards Australia (1998b) Water Quality - Sampling Part 1: Guidance on the design of sampling
programs, sampling techniques and the preservation and handling of samples AS 5667.1:1998.
Standards Australia, Homebush.
Standards Australia (1999) Water Quality - Sampling - Guidance on sampling of bottom sediments
AS5667.12:1999. Standards Australia, Homebush.
Standards Australia (2005) Guide to the investigation and sampling of sites with potentially
contaminated soil Part 1: Non-volatile and semi-volatile compounds AS 4482.1-2005. Standards
Australia, Homebush.
TABLES
Table 1
Helena River Surface Water Analytical Results, October 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Ars
en
ic
An
tim
on
y
Bar
ium
Cad
miu
m
Ch
rom
ium
He
xava
len
tC
hro
miu
m
Co
pp
er
Man
gan
ese
Nic
kel
Lead
Tin
Zin
c
C6
-9
C1
0-1
4
C1
5-2
8
C2
9-3
6
SURFACE WATER ASSESSMENT CRITERIA
Fresh Water Guidelines1
13 NV NV 0.2 NV 1 1.4 1900 11 3.4 NV 8 NV NV NV NV
Domestic non-potable Guidelines2
70 NV 7,000 20 500 500 20,000 5,000 200 100 NV 30,000 NV NV NV NV
Sample ID3
Date ARL ID
HR-W-2 15-Oct-12 12-7335-7 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
HR-W-1 15-Oct-12 12-7335-8 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
HR-W-3 15-Oct-12 12-7335-9 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
HR-W-5 15-Oct-12 12-7335-10 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
HR-W-4 15-Oct-12 12-7335-11 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
RPD Calculation
HR-W-4 15-Oct-12 12-7335-11 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
QC1 15-Oct-12 12-7335-12 <1 <1 40 <0.1 <1 <2 <1 <10 <1 <1 <10 <5 <20 <20 <40 <40
# # # # # # # # # # # # # # # #
Table must be viewed in colour
Notes: PAH = Polycyclic Aromatic Hydrocarbons
TPH = Total Petroleum Hydrocarbons
µg/L = micrograms per litre
ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports
ID = Identification
NV = 'No value' established for contaminant1 Australian and New Zealand guidelines for fresh and marine water quality (ANZECC & ARMCANZ, 2000) where toxicants are to be
compared against the 95% protection level for aquatic ecosystems, as presented in the DEC (2010) Assessment Levels for Soil,
Sediment and Water2 Department of Health (DoH) Contaminated Sites Reporting Guideline for Chemicals in Groundwater (DoH, 2006) as presented in
the DEC (2010) Assessment Levels for Soil, Sediment and Water3 In order of upstream (east) to downstream (west)
Values that equal or exceed the guidelines are underlined and either bold or red
No Monocyclic Aromatic Hydrocarbons (MAH) or Halogenated Aliphatic or Aromatic Hydrocarbons (HAH) were detected in any
sample and therefore are not tabulated, see laboratory reports
RPD = Relative Percentage Difference
# = RPD cannot be calculated as both results are below laboratory LOR
RPD (%)
Metals TPH
µg/L µg/L
MRA2012-003_PMON Helena River_002_nb 1
Table 1
Helena River Surface Water Analytical Results, October 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
SURFACE WATER ASSESSMENT CRITERIA
Fresh Water Guidelines1
Domestic non-potable Guidelines2
Sample ID3
Date ARL ID
HR-W-2 15-Oct-12 12-7335-7
HR-W-1 15-Oct-12 12-7335-8
HR-W-3 15-Oct-12 12-7335-9
HR-W-5 15-Oct-12 12-7335-10
HR-W-4 15-Oct-12 12-7335-11
RPD Calculation
HR-W-4 15-Oct-12 12-7335-11
QC1 15-Oct-12 12-7335-12
Table must be viewed in colour
RPD (%)
Nap
hth
ale
ne
2-m
eth
yln
aph
thal
en
e
Ace
nap
hth
yle
ne
Ace
nap
hth
en
e
Flu
ore
ne
Ph
en
anth
ren
e
An
thra
cen
e
Flu
ora
nth
en
e
Pyr
en
e
Be
nzo
[a]a
nth
race
ne
Ch
ryse
ne
Be
nzo
[b]f
luo
ran
the
ne
Be
nzo
[k]f
luo
ran
the
ne
Be
nzo
[a]p
yre
ne
Ind
en
o[1
,2,3
-c,d
]pyr
en
e
Dib
en
z[a,
h]a
nth
race
ne
Be
nzo
[g,h
,I]p
ery
len
e
16 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
NV NV NV NV NV NV NV NV NV NV NV NV NV 0.01 NV NV NV
<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 <0.1 <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
<0.1 <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 <0.1 <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 <0.1 <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
# # # # # # # # # # # # # # # # #
Notes: PAH = Polycyclic Aromatic Hydrocarbons
TPH = Total Petroleum Hydrocarbons
µg/L = micrograms per litre
ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports
ID = Identification
NV = 'No value' established for contaminant1 Australian and New Zealand guidelines for fresh and marine water quality (ANZECC & ARMCANZ, 2000) where toxicants are to be
compared against the 95% protection level for aquatic ecosystems, as presented in the DEC (2010) Assessment Levels for Soil,
Sediment and Water2 Department of Health (DoH) Contaminated Sites Reporting Guideline for Chemicals in Groundwater (DoH, 2006) as presented in
the DEC (2010) Assessment Levels for Soil, Sediment and Water3 In order of upstream (east) to downstream (west)
Values that equal or exceed the guidelines are underlined and either bold or red
No Monocyclic Aromatic Hydrocarbons (MAH) or Halogenated Aliphatic or Aromatic Hydrocarbons (HAH) were detected in any
sample and therefore are not tabulated, see laboratory reports
RPD = Relative Percentage Difference
# = RPD cannot be calculated as both results are below laboratory LOR
PAH
µg/L
MRA2012-003_PMON Helena River_002_nb 2
Table 2
Summary of Historical Helena River Surface Water Analytical Results
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
pH
(no
un
its)
Ars
en
ic
Cad
miu
m
Ch
rom
ium
He
xava
len
tC
hro
miu
m
Co
pp
er
Me
rcu
ry
Nic
kel
Lead
Zin
c
C6
-9
C1
0-1
4
C1
5-2
8
C2
9-3
6
Nap
hth
ale
ne
2-m
eth
yln
aph
thal
en
e
Ace
nap
hth
yle
ne
Ace
nap
hth
en
e
Flu
ore
ne
Ph
en
anth
ren
e
An
thra
cen
e
Flu
ora
nth
en
e
Pyr
en
e
Be
nzo
[a]a
nth
race
ne
Ch
ryse
ne
Be
nzo
[b]f
luo
ran
the
ne
Be
nzo
[k]f
luo
ran
the
ne
Be
nzo
[a]p
yre
ne
Ind
en
o[1
,2,3
-c,d
]pyr
en
e
Dib
en
z[a,
h]a
nth
race
ne
Be
nzo
[g,h
,I]p
ery
len
e
Tota
lPA
H
Ch
loro
form
Bro
mo
dic
hlo
rom
eth
ane
Dib
rom
och
loro
me
than
e
SURFACE WATER ASSESSMENT CRITERIA µg/L
Fresh Water Guidelines1 6.5-8.5 13 0.2 NV 1 1.4 0.06 11 3.4 8 NV NV NV NV 16 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV 3 NV NV NV
'Soft' HMFWG NV NV 0.2 10 NV 1.4 NV 11 3 8 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
'Moderate' HMFWG NV NV 0.5 25 NV 3 NV 27.5 14 20 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
Hard' HMFWG NV NV 0.8 37 NV 5.5 NV 42.9 25.8 31.2 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
'Very Hard' HMFWG NV NV 1 49 NV 7.3 NV 57 40 42 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
'Extremely Hard' HMFWG NV NV 2 84 NV 12.6 NV 99 90.8 72 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
Domestic non-potable Guidelines2
NV 70 20 500 500 20,000 10 200 100 30,000 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV 0.01 NV NV NV NV NV NV NV
Drinking Water1
6.5-8.5 7 2 50 50 2000 1 20 10 3000 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV 0.01 NV NV NV NV NV NV NV
Sample ID6 Date ARL ID
17/02/06 4524 - - - 1 <0.1 <1 - <1 <0.1 <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
19/10/06 24060 - - - <1 <0.1 <1 - <1 <0.1 <1 <1 10 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
29/03/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
28/06/07 15683 5.9 260 Extremely Hard 1 <0.1 1 - 1 <0.1 3 1 30 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
27/09/07 22770 6.9 71 Moderate 1 <0.1 <1 - <1 <0.1 3 <1 32 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
20/12/07 32037 6.9 210 Very Hard 1 <0.1 1 - 1 <0.1 1 1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
8/04/08 10117 4.5 400 Extremely Hard <1 0.2 1 - 22 <0.1 23 1 480 <20 200 440 <40 <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 <1.7 <1 <1 <1
18/08/08 20170 7 96 Moderate 2 <0.1 <1 <2 <1 <0.1 <1 1 35 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
4/11/08 28474 7.3 91 Moderate <1 <0.1 <1 <2 <1 <0.1 <1 1 <5 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
16/06/10 10-3314-4 3.7 370 Extremely Hard <1 0.3 <1 <2 2 <0.1 <1 <1 220 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
20/07/11 11-4861-2 6.7 91 Moderate <1 <0.1 <1 <2 <1 <0.1 1 <1 19 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
15/10/12 12-7335-7 - - - <1 <0.1 <1 <2 <1 - <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
17/02/06 4523 - - - 1 <0.1 <1 - <1 <0.1 <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
19/10/06 24059 - - - <1 <0.1 <1 - <1 <0.1 <1 1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
29/03/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
28/06/07 15682 6.4 100 Moderate 2 <0.1 1 - 5 <0.1 2 3 40 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
27/09/07 22769 6.9 70 Moderate 1 <0.1 <1 - <1 <0.1 5 <1 7 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
20/12/07 32036 6.8 180 Very Hard <1 <0.1 1 - <1 <0.1 1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
8/04/08 10116 7.6 210 Very Hard <1 0.3 1 - 20 <0.1 8 2 260 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
18/08/08 20169 6.9 110 Moderate <1 <0.1 <1 <2 1 <0.1 <1 1 53 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
4/11/08 28473 7.1 94 Moderate <1 <0.1 <1 <2 2 <0.1 <1 1 <5 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
16/06/10 10-3314-3 6.5 88 Moderate <1 <0.1 <1 <2 5 <0.1 1 1 53 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 4.8 2.4 1.2
20/07/11 11-4861-1 6.7 91 Moderate <1 <0.1 <1 <2 <1 <0.1 1 <1 16 <20 <20 <40 <40 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
15/10/12 12-7335-8 - - - <1 <0.1 <1 <2 <1 - <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
17/02/06 4525 - - - <1 <0.1 <1 - <1 <0.1 1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
19/10/06 24061 - - - <1 <0.1 <1 - <1 <0.1 <1 <1 10 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
29/03/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
28/06/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
27/09/07 22771 6.9 68 Moderate 1 <0.1 <1 - <1 <0.1 2 <1 8 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
20/12/07 32038 7.1 190 Very Hard <1 <0.1 1 - 1 <0.1 1 1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
8/04/08 10118 7.6 180 Very Hard 1 0.2 <1 - 21 <0.1 8 2 250 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
18/08/08 20171 7.0 100 Moderate 1 <0.1 <1 <2 <1 <0.1 <1 1 64 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
4/11/08 28475 7.2 98 Moderate <1 <0.1 <1 <2 1 <0.1 <1 1 <5 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
16/06/10 10-3314-5 6.6 67 Moderate <1 <0.1 <1 <2 5 <0.1 <1 2 48 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
20/07/11 11-4861-3 6.8 98 Moderate <1 <0.1 <1 <2 <1 <0.1 1 <1 16 <20 <20 <40 <40 0.14 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.32 <1 <1 <1
15/10/12 12-7335-9 - - - <1 <0.1 <1 <2 <1 - <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
17/02/06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
19/10/06 24063 - - - <1 <0.1 <1 - <1 <0.1 1 1 10 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
29/03/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
28/06/07 15685 6.1 130 Hard 1 <0.1 1 - 3 <0.1 2 2 34 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
27/09/07 22773 7.0 69 Moderate <1 <0.1 <1 - <1 <0.1 2 <1 6 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
20/12/07 32040 6.8 200 Very Hard <1 <0.1 1 - 1 <0.1 2 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
8/04/08 10120 7.6 84 Moderate 1 0.1 1 - 36 <0.1 4 4 110 <20 150 340 <40 <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 <1.7 <1 <1 <1
18/08/08 20173 6.9 99 Moderate <1 <0.1 <1 <2 <1 <0.1 <1 <1 41 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
4/11/08 28477 7.1 97 Moderate <1 <0.1 <1 <2 <1 <0.1 <1 <1 <5 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
16/06/10 10-3314-7 6.7 50 Soft <1 <0.1 <1 <2 3 <0.1 <1 1 34 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
20/07/11 11-4861-5 6.4 98 Moderate <1 <0.1 <1 <2 <1 <0.1 2 <1 18 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.17 <1 <1 <1
15/10/12 12-7335-10 - - - <1 <0.1 <1 <2 <1 - <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
17/02/06 4526 - - - <1 <0.1 7 - <1 <0.1 1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
19/10/06 24062 - - - <1 <0.1 <1 - <1 <0.1 <1 <1 10 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
29/03/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
28/06/07 15684 6 120 Hard 1 <0.1 1 - 5 <0.1 2 2 40 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
27/09/07 22772 7.0 69 Moderate <1 <0.1 <1 - <1 <0.1 2 <1 6 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
20/12/07 32039 7.0 200 Very Hard 1 0.1 1 - 1 <0.1 2 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
8/04/08 10119 7.9 84 Moderate <1 0.1 <1 - 22 <0.1 4 2 49 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
18/08/08 20172 6.9 99 Moderate <1 <0.1 <1 <2 <1 <0.1 <1 1 57 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
4/11/08 28476 7.1 99 Moderate <1 <0.1 1 <2 3 <0.1 <1 1 <5 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
16/06/10 10-3314-6 6.4 48 Soft <1 <0.1 <1 <2 5 <0.1 <1 2 37 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.2 <1 <1 <1
20/07/11 11-4861-4 6.4 93 Moderate <1 <0.1 <1 <2 <1 <0.1 2 <1 19 <20 <20 <40 <40 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <0.02 <0.02 <0.17 <1 <1 <1
15/10/12 12-7335-11 - - - <1 <0.1 <1 <2 <1 - <1 <1 <5 <20 <20 <40 <40 <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 <1.7 <1 <1 <1
Notes: 1Australian and New Zealand guidelines for fresh and marine water quality (ANZECC & ARMCANZ, 2000) where toxicants are to be Table must be viewed in colour
PAH = Polycyclic Aromatic Hydrocarbons compared against the 95% protection level for aquatic ecosystems, as presented in the DEC (2010) Assessment Levels for Soil,
VOC = Volatile Organic Compounds Sediment and Water
TPH = Total Petroleum Hydrocarbons 2Department of Health (DoH) Contaminated Sites Reporting Guideline for Chemicals in Groundwater (DoH, 2006) as presented in
HMFWG = Hardness Modified Freshwater Guidelines the DEC (2010) Assessment Levels for Soil, Sediment and Water
mgCaCO3/L = milligrams calcium carbonate per litre 3Australian Drinking Water Guidelines (ADWG) (2004) as presented in the DEC (2010) Assessment Levels for Soil, Sediment and Water
µg/L = micrograms per litre 4No river water sample was collected in February 2006 as this section of river was dry.
ID = Identification 5No river water samples were collected in March and June 2007 as access to this section was not available.
Table must be viewed in colour 6In order of upstream (east) to downstream (west)
NV = 'No value' established for contaminant7An extensive suite of VOCs have been analysed, however, only those listed have been detected above LOR
Values that equal or exceed the guidelines are underlined and either bold or red Values that equal or exceed the guidelines are underlined and either bold or red
ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports
HRW-4
HR-W-54
HR-W-35
HR-W-1
HR-W-2
Har
dn
ess
mg
CaC
O3/L
Potability Suite
0 - 59
60 - 119
240+
NV
200
NV
180-240
120-179
VOC7PAH
µg/L µg/L µg/L
Metals TPH
MRA2012-003_PMON Helena River_002_nb 3
Table 3
Helena River Sediment Analytical Results, October 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Ars
en
ic
An
tim
on
y
Bar
ium
Cad
miu
m
Ch
rom
ium
He
xava
ne
nt
Ch
rom
ium
Co
pp
er
Man
gan
ese
Nic
kel
Lead
Tin
Zin
c
C6
-9
C1
0-1
4
C1
5-2
8
C2
9-3
6
C>
36
SEDIMENT ASSESSMENT CRITERIA
20 2 NV 1.5 80 NV 65 NV 21 50 5 200 NV NV NV NV NV
70 25 NV 10 370 NV 270 NV 52 220 70 410 NV NV NV NV NV
Sample ID2
Date ARL#
HR-S-2 15-Oct-12 12-7335-1 <5 <2 26 <0.1 6 <1 4 28 2 7 <1 12 <0.2 34 24 8.1 <0.4
HR-S-1 15-Oct-12 12-7335-2 <5 <2 18 0.2 12 <1 5 34 2 16 <1 28 <0.2 2.1 3.2 1 <0.4
HR-S-3 15-Oct-12 12-7335-3 <5 <2 37 0.5 7 <1 12 130 4 21 <1 52 <0.2 8.2 6.2 2.3 <0.4
HR-S-5 15-Oct-12 12-7335-4 <5 <2 18 0.2 5 <1 6 37 2 15 7 28 <0.2 3 7.5 4.5 <0.4
HR-S-4 15-Oct-12 12-7335-5 <5 <2 74 0.9 14 <1 24 130 6 46 4 93 <0.2 24 16 3.8 <0.4
RPD Calculation
HR-S-4 15-Oct-12 12-7335-5 <5 <2 74 0.9 14 <1 24 130 6 46 4 93 <0.2 24 16 3.8 <0.4
QC2 15-Oct-12 12-7335-6 <5 <2 22 0.1 8 <1 5 39 3 12 <1 13 <0.2 6.4 6.3 1.9 <0.4
# # 108% 160% 55% # 131% 108% 67% 117% # 151% # 116% 87% 67% #
Table must be viewed in colour Notes:
PAH = Polycyclic Aromatic Hydrocarbons
TPH = Total Petroleum Hyrdocarbons
mg/kg = milligrams per kilogram
ARL# = Analytical Reference Laboratory (ARL) report number
ID = Identification
NV = No value established for guideline
2 In order of upstream (east) to downstream (west).3 Low molecular weight PAHs are the sum of acenaphthalene, anthracene, fluorene, 2-methylnaphthalene, naphthalene and phenanthrene.4 High molecular weight PAHs are the sum of benzo(a)anthracene, benzo(a)pyrene, chrysene, dibenzo(a,h)anthracene, fluoranthene and pyrene.
Values that equal or exceed the guidelines are bold and underlined or shaded where applicable.
No Volatile Organic Compounds (VOCs) were detected in any sample.
RPD = Relative Percentage Difference
No Monocyclic Aromatic Hydrocarbons (MAH) or Halogenated Aliphatic or Aromatic Hydrocarbons (HAH) were detected in any sample and therefore are not tabulated, see
laboratory reports
# = no RPD can be determined as one or both of the sample pair is below laboratory LOR
NV = 'No value' established for contaminant
RPD (%)
1 Interim Sediment Quality Guidelines (ISQG) as presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010).
Bolded RED QC data exceed acceptable range (concentrations >10 times the LOR acceptable range = 0 - <30%, concentrations <10 times the LOR acceptable range = 0 - <50%).
ISQG-High1
ISQG-Low1
mg/kg mg/kg
Metals TPH
MRA2012-003_PMON Helena River_002_nb 4
Table 3
Helena River Sediment Analytical Results, October 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
SEDIMENT ASSESSMENT CRITERIA
Sample ID2
Date ARL#
HR-S-2 15-Oct-12 12-7335-1
HR-S-1 15-Oct-12 12-7335-2
HR-S-3 15-Oct-12 12-7335-3
HR-S-5 15-Oct-12 12-7335-4
HR-S-4 15-Oct-12 12-7335-5
RPD Calculation
HR-S-4 15-Oct-12 12-7335-5
QC2 15-Oct-12 12-7335-6
Table must be viewed in colour
RPD (%)
ISQG-High1
ISQG-Low1
Nap
hth
ale
ne
2-M
eth
yln
aph
thal
en
e
Ace
nap
hth
en
e
Ace
nap
hth
ale
ne
Flu
ore
ne
Ph
en
anth
ren
e
An
thra
cen
e
Flu
ora
nth
en
e
Pyr
en
e
Be
nzo
[a]a
nth
race
ne
Ch
ryse
ne
Be
nzo
(b)f
luo
ran
the
ne
Be
nzo
(k)f
luo
ran
the
ne
Be
nzo
[a]p
yre
ne
Ind
en
o(1
,2,3
-c,d
)pyr
en
e
Be
nzo
(gh
i)p
ery
len
e
Dib
en
z[a,
h]a
nth
race
ne
Low
Mo
l.W
t.P
AH
s3
Hig
hM
ol.
Wt.
PA
Hs4
160 NV 16 44 19 240 85 600 665 261 384 NV NV 430 NV NV 63 552 1700
2100 NV 500 640 540 1500 1100 5100 2600 1600 2800 NV NV 1600 NV NV 260 3160 9600
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
<100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <600 <1000
# # # # # # # # # # # # # # # # # # #
Notes: PAH = Polycyclic Aromatic Hydrocarbons
TPH = Total Petroleum Hyrdocarbons
mg/kg = milligrams per kilogram
ARL# = Analytical Reference Laboratory (ARL) report number
ID = Identification
NV = No value established for guideline
2 In order of upstream (east) to downstream (west).3 Low molecular weight PAHs are the sum of acenaphthalene, anthracene, fluorene, 2-methylnaphthalene, naphthalene and phenanthrene.4 High molecular weight PAHs are the sum of benzo(a)anthracene, benzo(a)pyrene, chrysene, dibenzo(a,h)anthracene, fluoranthene and pyrene.
Values that equal or exceed the guidelines are bold and underlined or shaded where applicable.
No Volatile Organic Compounds (VOCs) were detected in any sample.
RPD = Relative Percentage Difference
No Monocyclic Aromatic Hydrocarbons (MAH) or Halogenated Aliphatic or Aromatic Hydrocarbons (HAH) were detected in any sample and therefore are not tabulated, see
laboratory reports
# = no RPD can be determined as one or both of the sample pair is below laboratory LOR
NV = 'No value' established for contaminant
ANALYTICAL RESULTS
1 Interim Sediment Quality Guidelines (ISQG) as presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010).
Bolded RED QC data exceed acceptable range (concentrations >10 times the LOR acceptable range = 0 - <30%, concentrations <10 times the LOR acceptable range = 0 - <50%).
PAH
µg/kg
MRA2012-003_PMON Helena River_002_nb 5
Table 4
Summary of Historical Helena River Sediment Analytical Results
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Ars
en
ic
Cad
miu
m
Ch
rom
ium
He
xava
len
tC
hro
miu
m
Co
pp
er
Me
rcu
ry
Nic
kel
Lead
Zin
c
C6
-9
C1
0-1
4
C1
5-2
8
C2
9-3
6
C>3
6
Nap
hth
ale
ne
Ace
nap
hth
en
e
Ace
nap
hth
ale
ne
Flu
ore
ne
Ph
en
anth
ren
e
An
thra
cen
e
Flu
ora
nth
en
e
Pyr
en
e
Be
nzo
[a]a
nth
race
ne
Ch
ryse
ne
Be
nzo
[a]p
yre
ne
Dib
en
z[a,
h]a
nth
race
ne
Low
Mo
l.W
t.P
AH
s
Hig
hM
ol.
Wt.
PA
Hs
Tota
lPA
H
SEDIMENT ASSESSMENT CRITERIA
20 1.5 80 NV 65 0.15 21 50 200 NV NV NV NV NV 160 16 44 19 240 85 600 665 261 384 430 63 552 1700 4000
70 10 370 NV 270 1 52 220 410 NV NV NV NV NV 2100 500 640 540 1500 1100 5100 2600 1600 2800 1600 260 3160 9600 45000
Sample ID2
Date ARL ID
17/02/06 4530 <5 <0.1 6 - 4 0.03 2 8 24 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
19/10/06 24066 <5 <0.1 4 - 4 <0.02 2 11 18 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
29/03/07 7484 <5 <0.1 18 - 16 <0.02 7 32 92 <0.2 1.5 52 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
28/06/07 15676 <5 <0.1 4 - 2 <0.02 1 5 11 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
27/09/07 22778 <5 <0.1 21 - 19 0.73 5 30 190 <0.2 3.1 12 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
20/12/07 32045 <5 <0.1 4 - 1 <0.02 1 5 1 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
8/04/08 10109 <5 <0.1 4 - 1 <0.02 1 5 2 <0.2 <0.2 9.2 4.1 <0.4 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
18/08/08 20162 <5 <0.1 8 <1 5 <0.02 3 13 33 0.6 24 160 100 29 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
4/11/08 28480 <5 0.8 4 <1 7 <0.2 5 8 29 1.1 12 64 64 11 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
16/06/10 10-33-15-2 <5 0.3 7 <1 8 <0.02 3 18 33 6.1 8.9 51 37 17 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
20/07/11 11-4864-2 <5 <0.1 3 <1 7 <0.02 1 7 19 <0.2 <0.2 5.5 <0.4 <0.4 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
15/10/12 12-7335-1 <5 <0.1 6 <1 4 - 2 7 12 <0.2 34 24 8.1 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <600 <1000 <1600
17/02/06 4529 <5 <0.1 11 - 10 0.04 5 23 20 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
19/10/06 24065 <5 <0.1 7 - 8 0.02 3 20 17 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
29/03/07 7483 <5 0.1 30 - 33 0.05 12 74 180 <0.2 0.7 15 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
28/06/07 15675 <5 <0.1 7 - 7 0.03 3 16 21 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
27/09/07 22777 <5 <0.1 10 - 9 0.02 5 24 18 <0.2 8.3 12 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
20/12/07 32044 <5 0.1 5 - 5 <0.02 2 13 86 <0.2 0.6 11 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
8/04/08 10108 <5 <0.1 11 - 10 0.02 4 20 21 <0.2 22 160 86 12 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
18/08/08 20161 <5 0.1 12 <1 16 0.04 4 36 16 0.5 27 140 90 21 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
4/11/08 28479 <5 0.2 9 <1 10 <0.02 3 27 15 2.9 55 260 180 26 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
16/06/10 10-3315-1 <5 0.2 7 <1 8 <0.02 2 20 14 4.8 48 270 110 29 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
20/07/11 11-4864-1 <5 <0.1 5 <1 4 <0.02 2 9 10 <0.2 40 110 33 <0.4 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
15/10/12 12-7335-2 <5 0.2 12 <1 5 - 2 16 28 <0.2 2.1 3.2 1 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <600 <1000 <1600
17/02/06 4531 <5 <0.1 24 - 27 0.08 12 63 56 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
19/10/06 24067 <5 <0.1 9 - 14 0.03 4 42 19 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
29/03/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
28/06/07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
27/09/07 22779 <5 <0.1 21 - 22 0.73 5 69 60 <0.2 <0.2 16 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
20/12/07 32046 <5 <0.1 11 - 15 0.04 4 36 43 <0.2 2.1 36 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
8/04/08 10110 <5 <0.1 9 - 11 0.02 3 23 27 <0.2 26 180 94 15 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
18/08/08 20163 <5 <0.1 21 <1 27 0.06 7 96 79 0.6 34 200 130 31 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
4/11/08 28481 <5 0.5 21 <1 26 0.04 8 67 70 2.6 58 350 230 40 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
16/06/10 10-3315-3 <5 0.5 15 <1 23 0.02 6 66 73 3.7 23 130 43 15 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
20/07/11 11-4864-3 <5 <0.1 23 <1 38 <0.02 9 110 96 <0.2 37 180 86 <0.4 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
Metals TPH PAH
mg/kg mg/kg µg/kg
HR-S-33
ISQG-Low1
ISQG-High1
HR-S-2
HR-S-1
MRA2012-003_PMON Helena River_002_nb 6
Table 4
Summary of Historical Helena River Sediment Analytical Results
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Ars
en
ic
Cad
miu
m
Ch
rom
ium
He
xava
len
tC
hro
miu
m
Co
pp
er
Me
rcu
ry
Nic
kel
Lead
Zin
c
C6
-9
C1
0-1
4
C1
5-2
8
C2
9-3
6
C>3
6
Nap
hth
ale
ne
Ace
nap
hth
en
e
Ace
nap
hth
ale
ne
Flu
ore
ne
Ph
en
anth
ren
e
An
thra
cen
e
Flu
ora
nth
en
e
Pyr
en
e
Be
nzo
[a]a
nth
race
ne
Ch
ryse
ne
Be
nzo
[a]p
yre
ne
Dib
en
z[a,
h]a
nth
race
ne
Low
Mo
l.W
t.P
AH
s
Hig
hM
ol.
Wt.
PA
Hs
Tota
lPA
H
SEDIMENT ASSESSMENT CRITERIA
20 1.5 80 NV 65 0.15 21 50 200 NV NV NV NV NV 160 16 44 19 240 85 600 665 261 384 430 63 552 1700 4000
70 10 370 NV 270 1 52 220 410 NV NV NV NV NV 2100 500 640 540 1500 1100 5100 2600 1600 2800 1600 260 3160 9600 45000
Sample ID2
Date ARL ID
Metals TPH PAH
mg/kg mg/kg µg/kg
ISQG-Low1
ISQG-High1
15/10/12 12-7335-3 <5 0.5 7 <1 12 - 4 21 52 <0.2 8.2 6.2 2.3 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <600 <1000 <1600
17/02/06 4533 9 <0.1 23 - 23 0.08 10 45 82 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
19/10/06 24069 8 <0.1 9 - 12 0.03 4 31 28 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
29/03/07 7486 <5 <0.1 2 - 2 <0.02 1 5 10 <0.2 0.4 6.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
28/06/07 15678 <5 <0.1 14 - 16 0.05 6 44 43 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
27/09/07 22781 <5 <0.1 20 - 15 0.06 11 28 29 <0.2 6.8 14 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
20/12/07 32048 <5 0.1 6 - 9 0.02 2 27 34 <0.2 2.3 33 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
8/04/08 10112 6 <0.1 4 - 13 0.04 3 27 7 <0.2 14 120 70 15 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
18/08/08 20165 <5 <0.1 29 <1 41 0.06 12 79 150 0.9 25 200 150 37 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
4/11/08 28483 <5 1.1 23 <1 30 0.06 10 58 130 2.7 76 470 330 58 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
16/06/10 10-3315-5 9 1 22 <1 33 0.02 12 72 320 17 99 660 390 94 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
20/07/11 11-4864-5 <5 <0.1 5 <1 10 <0.02 2 16 20 <0.2 13 34 12 <0.4 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
15/10/12 12-7335-4 <5 0.2 5 <1 6 - 2 15 28 <0.2 3 7.5 4.5 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <600 <1000 <1600
17/02/06 4532 5 0.1 25 - 31 0.1 12 54 120 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
19/10/06 24068 6 <0.1 10 - 18 0.04 7 42 49 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
29/03/07 7485 <5 <0.1 3 - 3 <0.02 2 6 13 <0.2 0.6 4.7 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
28/06/07 15677 <5 <0.1 13 - 12 0.02 6 26 24 <0.2 <0.2 <0.4 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
27/09/07 22780 <5 <0.1 14 - 12 <0.02 5 42 33 <0.2 3.4 8.2 <0.4 - <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <500 <1000 <1500
20/12/07 32047 <5 0.1 9 - 13 0.04 3 35 54 <0.2 2.1 28 <0.4 - <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
8/04/08 10111 <5 <0.1 9 - 13 <0.02 4 26 32 <0.2 30 210 120 19 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
18/08/08 20164 <5 <0.1 22 <1 30 0.06 7 99 67 0.8 32 190 120 31 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
4/11/08 28482 <5 0.1 8 <1 11 <0.02 3 26 35 2.7 78 410 220 38 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
16/06/10 10-3315-4 <5 0.6 17 <1 29 <0.02 6 66 60 8.9 130 810 360 62 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
20/07/11 11-4864-4 6 <0.1 13 <1 21 <0.02 7 39 32 <0.2 51 280 87 <0.4 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <500 <1000 <1500
15/10/12 12-7335-5 <5 0.9 14 <1 24 - 6 46 93 <0.2 24 16 3.8 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <600 <1000 <1600
Notes: PAH = Polycyclic Aromatic Hydrocarbons
VOC = Volatile Organic Compounds
TPH = Total Petroleum Hydrocarbons 2 In order of upstream (east) to downstream (west)
µg/kg = micrograms per kilogram 3 No river water samples were collected in March and June 2007 as access to this section was not available.
mg/kg = milligrams per kilogram No VOCs were detected in any sample
NV = 'No value' established for contaminant Values that equal or exceed the guidelines are bold and underlined or shaded where applicable.
ID = Identification
ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports
HR-S-5
HR-S-4
1 Interim Sediment Quality Guidelines (ISQG) as presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010).
MRA2012-003_PMON Helena River_002_nb 7
Table 5
Stormwater Outlet Analytical Results, October 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
Ars
en
ic
An
tim
on
y
Bar
ium
Cad
miu
m
Ch
rom
ium
He
xava
len
tC
hro
miu
m
Co
pp
er
Man
gan
ese
Nic
kel
Lead
Tin
Zin
c
C6
-9
C1
0-1
4
C1
5-2
8
C2
9-3
6
WATER ASSESSMENT CRITERIA
Fresh Water Guidelines1
13 NV NV 0.2 NV 1 1.4 1900 11 3.4 NV 8 NV NV NV NV
Domestic non-potable Guidelines1
70 NV 7,000 20 500 500 20,000 5,000 200 100 NV 30,000 NV NV NV NV
Sample ID Date ARL ID
Western Stormwater Outlet 15-Oct-12 12-7335-13 <1 <1 40 <0.1 <1 <2 2 <10 <1 <1 <10 230 <20 <20 <40 <40
Passive Drain Outlet 17-Oct-12 12-7435-3 <1 <1 60 <0.1 <1 <2 <1 30 <1 <1 <10 <5 <20 <20 <40 <40
Notes: PAH = Polycyclic Aromatic Hydrocarbons
TPH = Total Petroleum Hydrocarbons
µg/L = micrograms per litre
ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports
ID = Identification
NV = 'No value' established for contaminant1 Australian and New Zealand guidelines for fresh and marine water quality (ANZECC & ARMCANZ, 2000) where toxicants are to be
compared against the 95% protection level for aquatic ecosystems, as presented in the DEC (2010) Assessment Levels for Soil,
Sediment and Water2 Department of Health (DoH) Contaminated Sites Reporting Guideline for Chemicals in Groundwater (DoH, 2006) as presented in
the DEC (2010) Assessment Levels for Soil, Sediment and Water
Values that equal or exceed the guidelines are underlined and either bold or red
No Monocyclic Aromatic Hydrocarbons (MAH) or Halogenated Aliphatic or Aromatic Hydrocarbons (HAH) were detected in any
sample and therefore are not tabulated, see laboratory reports
Metals TPH
µg/L µg/L
MRA2012-003_PMON Helena River_002_nb 8
Table 5
Stormwater Outlet Analytical Results, October 2012
Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event
WATER ASSESSMENT CRITERIA
Fresh Water Guidelines1
Domestic non-potable Guidelines1
Sample ID Date ARL ID
Western Stormwater Outlet 15-Oct-12 12-7335-13
Passive Drain Outlet 17-Oct-12 12-7435-3
Nap
hth
ale
ne
2-m
eth
yln
aph
thal
en
e
Ace
nap
hth
yle
ne
Ace
nap
hth
en
e
Flu
ore
ne
Ph
en
anth
ren
e
An
thra
cen
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Flu
ora
nth
en
e
Pyr
en
e
Be
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nth
race
ne
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nzo
[b]f
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nzo
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luo
ran
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yre
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en
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en
e
Dib
en
z[a,
h]a
nth
race
ne
Be
nzo
[g,h
,I]p
ery
len
e
16 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV
NV NV NV NV NV NV NV NV NV NV NV NV NV 0.01 NV NV NV
<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 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
Notes: PAH = Polycyclic Aromatic Hydrocarbons
TPH = Total Petroleum Hydrocarbons
µg/L = micrograms per litre
ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports
ID = Identification
NV = 'No value' established for contaminant1 Australian and New Zealand guidelines for fresh and marine water quality (ANZECC & ARMCANZ, 2000) where toxicants are to be
compared against the 95% protection level for aquatic ecosystems, as presented in the DEC (2010) Assessment Levels for Soil,
Sediment and Water2 Department of Health (DoH) Contaminated Sites Reporting Guideline for Chemicals in Groundwater (DoH, 2006) as presented in
the DEC (2010) Assessment Levels for Soil, Sediment and Water
Values that equal or exceed the guidelines are underlined and either bold or red
No Monocyclic Aromatic Hydrocarbons (MAH) or Halogenated Aliphatic or Aromatic Hydrocarbons (HAH) were detected in any
sample and therefore are not tabulated, see laboratory reports
PAH
µg/L
MRA2012-003_PMON Helena River_002_nb 9
FIGURES
MR
A201
2-00
3_PM
ON
Hel
ena
Riv
er_0
01_n
b-f0
1.dg
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INP
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T C
AR
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(08
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2 71
36
Figure 1
Job: MRA2012-003
0 250 500 750 1000m
SCALE 1 : 25 000 at A4 (MGA)
N
Metropolitan Redevelopment AuthorityHELENA RIVER SURFACE WATER AND SEDIMENT SAMPLING REPORTOCTOBER 2012 RESULTS
Drawn: N. Buckingham Date: 17 Dec 2012
SITELOCATION
REGIONAL LOCATION
MRA2012-003_PMON Helena River_001_nb-f02.dgnPINPOINT CARTOGRAPHICS (08) 9562 7136
N
Date: 17 Dec 2012
Figure 2
Job: MRA2012-003
0 50 200m100 150
SCALE 1 : 4 500 at A3 (MGA)
Drawn: N. Buckingham
Metropolitan Redevelopment AuthorityHELENA RIVER SURFACE WATER AND SEDIMENT SAMPLING REPORTOCTOBER 2012 RESULTS
SOURCE: Coffey Environments, Rpt No. EP2011-182, 22 Nov 2011.
SURFACE WATER, SEDIMENT ANDSTORMWATER OUTLET SAMPLE LOCATIONS
APPENDIX A
Survey Plan of Surface Water and Sediment SamplingLocations
HR
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APPENDIX B
October 2012 Field Notes
APPENDIX C
Chain of Custody Documentation and Laboratory Certificates
LABORATORY REPORT
Job Number: 12-7335
Revision: 00
ADDRESS: Aurora Environmental Date: 2 November 2012
149-151 Kensington St
East Perth WA 6004
ATTENTION: Nicole Buckingham
DATE RECEIVED: 16/10/2012
YOUR REFERENCE: MRA/2012/003
PURCHASE ORDER: N/A
APPROVALS:
REPORT COMMENTS:
Samples are analysed on an as received basis unless otherwise noted.
Metals in soils analysis was conducted on a dry weight basis.
METHOD REFERENCES:
ARL No. 006 Polycyclic Aromatic Hydrocarbons in Soil
ARL No. 010 Total Petroleum Hydrocarbons (TPH) in Soil
ARL No. 401 Metals in Soil and Sediment by ICPOES
ARL No. 051 Hexavalent Chromium in Soil
ARL No. 005 Polycyclic Aromatic Hydrocarbons in Water
ARL No. 009 Total Petroleum Hydrocarbons (TPH) in Water
ARL No. 040 Arsenic by Hydride Atomic Absorption
ARL No. 402/403 Metals in Water by ICPOES/MS
ARL No. 316 Hexavalent Chromium in Water by Discrete Analyser
Page 1 of 6
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012
PAH in Soil
Sample No: LOR UNITS 12-7335-1 12-7335-2 12-7335-3 12-7335-4 12-7335-5
Sample Description: HR-S-2 HR-S-1 HR-S-3 HR-S-5 HR-S-4
Naphthalene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
2-Methylnaphthalene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthylene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Fluorene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Phenanthrene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Anthracene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Fluoranthene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Pyrene 0.1 mg/kg <0.1 <0.1 <0.1 <0.1 <0.1
Benz(a)anthracene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Chrysene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Benzo(b)fluoranthene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Benzo(k)fluoranthene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Benzo(a)pyrene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Indeno(1,2,3-c,d)pyrene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Dibenz(a,h)anthracene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
Benzo(ghi)perylene 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
2-Fluoro-1,1'-Biphenyl (SS) % 81 [NT] [NT] [NT] [NT]
p-Terphenyl-d14 (SS) % 70 [NT] [NT] [NT] [NT]
PAH in Soil
Sample No: LOR UNITS 12-7335-6
Sample Description: QC2
Naphthalene 0.1 mg/kg <0.1
2-Methylnaphthalene 0.1 mg/kg <0.1
Acenaphthylene 0.1 mg/kg <0.1
Acenaphthene 0.1 mg/kg <0.1
Fluorene 0.1 mg/kg <0.1
Phenanthrene 0.1 mg/kg <0.1
Anthracene 0.1 mg/kg <0.1
Fluoranthene 0.1 mg/kg <0.1
Pyrene 0.1 mg/kg <0.1
Benz(a)anthracene 0.2 mg/kg <0.2
Chrysene 0.2 mg/kg <0.2
Benzo(b)fluoranthene 0.2 mg/kg <0.2
Benzo(k)fluoranthene 0.2 mg/kg <0.2
Benzo(a)pyrene 0.2 mg/kg <0.2
Indeno(1,2,3-c,d)pyrene 0.2 mg/kg <0.2
Dibenz(a,h)anthracene 0.2 mg/kg <0.2
Benzo(ghi)perylene 0.2 mg/kg <0.2
2-Fluoro-1,1'-Biphenyl (SS) % 65
p-Terphenyl-d14 (SS) % 110
Page 2 of 6
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012
TPH in Soil/Sediment
Sample No: LOR UNITS 12-7335-1 12-7335-2 12-7335-3 12-7335-4 12-7335-5
Sample Description: HR-S-2 HR-S-1 HR-S-3 HR-S-5 HR-S-4
C6-9 0.2 mg/kg <0.2 <0.2 <0.2 <0.2 <0.2
C10-14 0.2 mg/kg 34 2.1 8.2 3.0 24
C15-28 0.4 mg/kg 24 3.2 6.2 7.5 16
C29-36 0.4 mg/kg 8.1 1.0 2.3 4.5 3.8
C>36 0.4 mg/kg <0.4 <0.4 <0.4 <0.4 <0.4
TPH in Soil/Sediment
Sample No: LOR UNITS 12-7335-6
Sample Description: QC2
C6-9 0.2 mg/kg <0.2
C10-14 0.2 mg/kg 6.4
C15-28 0.4 mg/kg 6.3
C29-36 0.4 mg/kg 1.9
C>36 0.4 mg/kg <0.4
Metals in Soil and
Sediment
Sample No: LOR UNITS 12-7335-1 12-7335-2 12-7335-3 12-7335-4 12-7335-5
Sample Description: HR-S-2 HR-S-1 HR-S-3 HR-S-5 HR-S-4
Arsenic 5 mg/kg <5 <5 <5 <5 <5
Cadmium 0.1 mg/kg <0.1 0.2 0.5 0.2 0.9
Chromium 1 mg/kg 6 12 7 5 14
Copper 1 mg/kg 4 5 12 6 24
Nickel 1 mg/kg 2 2 4 2 6
Lead 1 mg/kg 7 16 21 15 46
Zinc 1 mg/kg 12 28 52 28 93
Barium 1 mg/kg 26 18 37 18 74
Chromium (VI) 1 mg/kg <1 <1 <1 <1 <1
Manganese 1 mg/kg 28 34 130 37 130
Antimony 2 mg/kg <2 <2 <2 <2 <2
Tin 1 mg/kg <1 <1 <1 7 4
Metals in Soil and
Sediment
Sample No: LOR UNITS 12-7335-6
Sample Description: QC2
Arsenic 5 mg/kg <5
Cadmium 0.1 mg/kg 0.1
Chromium 1 mg/kg 8
Copper 1 mg/kg 5
Nickel 1 mg/kg 3
Lead 1 mg/kg 12
Zinc 1 mg/kg 13
Barium 1 mg/kg 22
Chromium (VI) 1 mg/kg <1
Manganese 1 mg/kg 39
Antimony 2 mg/kg <2
Tin 1 mg/kg <1
Page 3 of 6
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012
PAH in Water
Sample No: LOR UNITS 12-7335-7 12-7335-8 12-7335-9 12-7335-10 12-7335-11
Sample Description: HR-W-2 HR-W-1 HR-W-3 HR-W-5 HR-W-4
Naphthalene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
2-Methylnaphthalene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthylene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Fluorene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Phenanthrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benz(a)anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Chrysene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(b)fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(k)fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(a)pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Indeno(1,2,3-c,d)pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Dibenz(a,h)anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(ghi)perylene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
2-Fluoro-1,1'-Biphenyl (SS) % [NT] [NT] [NT] 64 [NT]
p-Terphenyl-d14 (SS) % [NT] [NT] [NT] 84 [NT]
PAH in Water
Sample No: LOR UNITS 12-7335-12 12-7335-13
Sample Description: QC1 Western
Stormwater
Outlet
Naphthalene 0.1 µg/L <0.1 <0.1
2-Methylnaphthalene 0.1 µg/L <0.1 <0.1
Acenaphthylene 0.1 µg/L <0.1 <0.1
Acenaphthene 0.1 µg/L <0.1 <0.1
Fluorene 0.1 µg/L <0.1 <0.1
Phenanthrene 0.1 µg/L <0.1 <0.1
Anthracene 0.1 µg/L <0.1 <0.1
Fluoranthene 0.1 µg/L <0.1 <0.1
Pyrene 0.1 µg/L <0.1 <0.1
Benz(a)anthracene 0.1 µg/L <0.1 <0.1
Chrysene 0.1 µg/L <0.1 <0.1
Benzo(b)fluoranthene 0.1 µg/L <0.1 <0.1
Benzo(k)fluoranthene 0.1 µg/L <0.1 <0.1
Benzo(a)pyrene 0.1 µg/L <0.1 <0.1
Indeno(1,2,3-c,d)pyrene 0.1 µg/L <0.1 <0.1
Dibenz(a,h)anthracene 0.1 µg/L <0.1 <0.1
Benzo(ghi)perylene 0.1 µg/L <0.1 <0.1
Page 4 of 6
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012
TPH in Water
Sample No: LOR UNITS 12-7335-7 12-7335-8 12-7335-9 12-7335-10 12-7335-11
Sample Description: HR-W-2 HR-W-1 HR-W-3 HR-W-5 HR-W-4
C6-9 0.02 mg/L <0.02 <0.02 <0.02 <0.02 <0.02
C10-14 0.02 mg/L <0.02 <0.02 <0.02 <0.02 <0.02
C15-28 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
C29-36 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
C>36 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
TPH in Water
Sample No: LOR UNITS 12-7335-12 12-7335-13
Sample Description: QC1 Western
Stormwater
Outlet
C6-9 0.02 mg/L <0.02 <0.02
C10-14 0.02 mg/L <0.02 <0.02
C15-28 0.04 mg/L <0.04 <0.04
C29-36 0.04 mg/L <0.04 <0.04
C>36 0.04 mg/L <0.04 <0.04
Metals in Water
Sample No: LOR UNITS 12-7335-7 12-7335-8 12-7335-9 12-7335-10 12-7335-11
Sample Description: HR-W-2 HR-W-1 HR-W-3 HR-W-5 HR-W-4
Arsenic - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Barium - Dissolved 0.01 mg/L 0.04 0.04 0.04 0.04 0.04
Cadmium - Dissolved 0.0001 mg/L <0.0001 <0.0001 <0.0001 <0.0001 <0.0001
Chromium - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Chromium (VI) 0.002 mg/L <0.002 <0.002 <0.002 <0.002 <0.002
Copper - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Manganese - Dissolved 0.01 mg/L <0.01 <0.01 <0.01 <0.01 <0.01
Nickel - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Lead - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Antimony - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Tin - Dissolved 0.01 mg/L <0.01 <0.01 <0.01 <0.01 <0.01
Zinc - Dissolved 0.005 mg/L <0.005 <0.005 <0.005 <0.005 <0.005
Metals in Water
Sample No: LOR UNITS 12-7335-12 12-7335-13
Sample Description: QC1 Western
Stormwater
Outlet
Arsenic - Dissolved 0.001 mg/L <0.001 <0.001
Barium - Dissolved 0.01 mg/L 0.04 0.04
Cadmium - Dissolved 0.0001 mg/L <0.0001 <0.0001
Chromium - Dissolved 0.001 mg/L 0.001 <0.001
Chromium (VI) 0.002 mg/L <0.002 <0.002
Copper - Dissolved 0.001 mg/L <0.001 0.002
Manganese - Dissolved 0.01 mg/L <0.01 <0.01
Nickel - Dissolved 0.001 mg/L <0.001 <0.001
Lead - Dissolved 0.001 mg/L <0.001 <0.001
Antimony - Dissolved 0.001 mg/L <0.001 <0.001
Page 5 of 6
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012
Metals in Water
Sample No: LOR UNITS 12-7335-12 12-7335-13
Sample Description: QC1 Western
Stormwater
Outlet
Tin - Dissolved 0.01 mg/L <0.01 <0.01
Zinc - Dissolved 0.005 mg/L <0.005 0.23
Result Definitions
LOR Limit of Reporting
[NT] Not Tested
[ND] Not Detected at indicated Limit of Reporting
[NR] Analysis Not Requested
(SS) Surrogate Standard Compound
Page 6 of 6
LABORATORY REPORT
Job Number: 12-7435
Revision: 00
ADDRESS: Aurora Environmental Date: 2 November 2012
149-151 Kensington St
East Perth WA 6004
ATTENTION: Nicole Buckingham
DATE RECEIVED: 18/10/2012
YOUR REFERENCE: MRA/2012/003
PURCHASE ORDER:
APPROVALS:
REPORT COMMENTS:
Samples are analysed on an as received basis unless otherwise noted.
METHOD REFERENCES:
ARL No. 005 Polycyclic Aromatic Hydrocarbons in Water
ARL No. 009 Total Petroleum Hydrocarbons (TPH) in Water
ARL No. 040 Arsenic by Hydride Atomic Absorption
ARL No. 402/403 Metals in Water by ICPOES/MS
ARL No. 316 Hexavalent Chromium in Water by Discrete Analyser
Page 1 of 4
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7435 Revision: 00 Date: 2 November 2012
PAH in Water
Sample No: LOR UNITS 12-7435-2 12-7435-3 12-7435-5 12-7435-6 12-7435-7
Sample Description: QC7 Passive Drain
Outlet
ATA-102 ATA-110 ATA-109
Naphthalene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
2-Methylnaphthalene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthylene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Fluorene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Phenanthrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benz(a)anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Chrysene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(b)fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(k)fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(a)pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Indeno(1,2,3-c,d)pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Dibenz(a,h)anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(ghi)perylene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
2-Fluoro-1,1'-Biphenyl (SS) % 93 [NT] [NT] [NT] 72
p-Terphenyl-d14 (SS) % 104 [NT] [NT] [NT] 75
PAH in Water
Sample No: LOR UNITS 12-7435-8 12-7435-9 12-7435-10 12-7435-11 12-7435-12
Sample Description: ATA-100 ATA-106 ATA-108 QC8 QC9
Naphthalene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
2-Methylnaphthalene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthylene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Acenaphthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Fluorene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Phenanthrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benz(a)anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Chrysene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(b)fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(k)fluoranthene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(a)pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Indeno(1,2,3-c,d)pyrene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Dibenz(a,h)anthracene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
Benzo(ghi)perylene 0.1 µg/L <0.1 <0.1 <0.1 <0.1 <0.1
2-Fluoro-1,1'-Biphenyl (SS) % [NT] [NT] [NT] [NT] 69
p-Terphenyl-d14 (SS) % [NT] [NT] [NT] [NT] 65
Page 2 of 4
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7435 Revision: 00 Date: 2 November 2012
TPH in Water
Sample No: LOR UNITS 12-7435-1 12-7435-2 12-7435-3 12-7435-4 12-7435-5
Sample Description: QC6 QC7 Passive Drain
Outlet
ATA-85-LSA-1 ATA-102
C6-9 0.02 mg/L <0.02 <0.02 <0.02 <0.02 <0.02
C10-14 0.02 mg/L <0.02 <0.02 <0.02 <0.02 <0.02
C15-28 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
C29-36 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
C>36 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
TPH in Water
Sample No: LOR UNITS 12-7435-6 12-7435-7 12-7435-8 12-7435-9 12-7435-10
Sample Description: ATA-110 ATA-109 ATA-100 ATA-106 ATA-108
C6-9 0.02 mg/L <0.02 <0.02 <0.02 <0.02 <0.02
C10-14 0.02 mg/L <0.02 <0.02 <0.02 <0.02 <0.02
C15-28 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
C29-36 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
C>36 0.04 mg/L <0.04 <0.04 <0.04 <0.04 <0.04
TPH in Water
Sample No: LOR UNITS 12-7435-11 12-7435-12
Sample Description: QC8 QC9
C6-9 0.02 mg/L <0.02 <0.02
C10-14 0.02 mg/L <0.02 <0.02
C15-28 0.04 mg/L <0.04 <0.04
C29-36 0.04 mg/L <0.04 <0.04
C>36 0.04 mg/L <0.04 <0.04
Metals in Water
Sample No: LOR UNITS 12-7435-2 12-7435-3 12-7435-5 12-7435-6 12-7435-7
Sample Description: QC7 Passive Drain
Outlet
ATA-102 ATA-110 ATA-109
Arsenic - Dissolved 0.001 mg/L <0.001 <0.001 0.001 <0.001 <0.001
Barium - Dissolved 0.01 mg/L <0.01 0.06 <0.01 0.02 0.02
Cadmium - Dissolved 0.0001 mg/L <0.0001 <0.0001 <0.0001 <0.0001 <0.0001
Chromium - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Chromium (VI) 0.002 mg/L <0.002 <0.002 <0.002 <0.002 <0.002
Copper - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Manganese - Dissolved 0.01 mg/L <0.01 0.03 0.01 <0.01 0.06
Nickel - Dissolved 0.001 mg/L <0.001 0.001 <0.001 <0.001 0.001
Lead - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Antimony - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Tin - Dissolved 0.01 mg/L <0.01 <0.01 <0.01 <0.01 <0.01
Zinc - Dissolved 0.005 mg/L <0.005 <0.005 <0.005 <0.005 <0.005
Page 3 of 4
LABORATORY REPORT
Aurora Environmental
ARL Job No: 12-7435 Revision: 00 Date: 2 November 2012
Metals in Water
Sample No: LOR UNITS 12-7435-8 12-7435-9 12-7435-10 12-7435-11 12-7435-12
Sample Description: ATA-100 ATA-106 ATA-108 QC8 QC9
Arsenic - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Barium - Dissolved 0.01 mg/L 0.05 0.05 0.09 0.02 0.10
Cadmium - Dissolved 0.0001 mg/L <0.0001 <0.0001 <0.0001 <0.0001 <0.0001
Chromium - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Chromium (VI) 0.002 mg/L <0.002 <0.002 <0.002 <0.002 <0.002
Copper - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Manganese - Dissolved 0.01 mg/L <0.01 <0.01 <0.01 0.06 <0.01
Nickel - Dissolved 0.001 mg/L 0.002 <0.001 0.004 0.001 0.004
Lead - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Antimony - Dissolved 0.001 mg/L <0.001 <0.001 <0.001 <0.001 <0.001
Tin - Dissolved 0.01 mg/L <0.01 <0.01 <0.01 <0.01 <0.01
Zinc - Dissolved 0.005 mg/L <0.005 <0.005 <0.005 <0.005 <0.005
Result Definitions
LOR Limit of Reporting
[NT] Not Tested
[ND] Not Detected at indicated Limit of Reporting
[NR] Analysis Not Requested
(SS) Surrogate Standard Compound
Page 4 of 4
Australian Government____________________________________________National Measurement Institute
REPORT OF ANALYSISPage: 1 of 7
Report No. RN940970Client : ANALYTICAL REFERENCE LAB PTY LTD Job No. : ANAL07/121018
46-48 BANKSIA ROAD Quote No. : QT-01898 WELSHPOOL WA 6106 Order No. : 15416
Date Sampled : Date Received : 22-OCT-2012
Attention : KIM ROGERS Sampled By : CLIENTProject Name : Your Client Services Manager : BRIAN WOODWARD Phone : (02) 94490151
Lab Reg No. Sample Ref Sample DescriptionW12/016095 127335-1 SOIL HR-S-2W12/016096 127335-2 SOIL HR-S-1W12/016097 127335-3 SOIL HR-S-3W12/016098 127335-4 SOIL HR-S-5
Lab Reg No. W12/016095 W12/016096 W12/016097 W12/016098Sample Reference 127335-1 127335-2 127335-3 127335-4
Units MethodMonocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene mg/kg <1 <1 <1 <1 NGCMS_1120 Toluene mg/kg <1 <1 <1 <1 NGCMS_1120 Ethylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 m & p-Xylenes mg/kg <2 <2 <2 <2 NGCMS_1120 o-Xylene mg/kg <1 <1 <1 <1 NGCMS_1120 Styrene mg/kg <1 <1 <1 <1 NGCMS_1120 Isopropylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 n-Propylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,3,5-Trimethylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 tert-Butylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2,4-Trimethylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 sec-Butylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 4-Isopropyltoluene mg/kg <1 <1 <1 <1 NGCMS_1120 n-Butylbenzene mg/kg <1 <1 <1 <1 NGCMS_1120 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane mg/kg <1 <1 <1 <1 NGCMS_1120 Vinyl chloride mg/kg <1 <1 <1 <1 NGCMS_1120 Bromomethane mg/kg <1 <1 <1 <1 NGCMS_1120 Chloroethane mg/kg <1 <1 <1 <1 NGCMS_1120 Trichlorofluoromethane mg/kg <1 <1 <1 <1 NGCMS_1120 1,1-Dichloroethane mg/kg <1 <1 <1 <1 NGCMS_1120 Dichloromethane mg/kg <1 <1 <1 <1 NGCMS_1120 trans-1,2-Dichloroethene mg/kg <1 <1 <1 <1 NGCMS_1120 1,1-Dichloroethene mg/kg <1 <1 <1 <1 NGCMS_1120 2,2-Dichloropropane mg/kg <1 <1 <1 <1 NGCMS_1120 cis-1,2-Dichloroethene mg/kg <1 <1 <1 <1 NGCMS_1120 Bromochloromethane mg/kg <1 <1 <1 <1 NGCMS_1120 1,1,1-Trichloroethane mg/kg <1 <1 <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 2 of 7
Report No. RN940970Lab Reg No. W12/016095 W12/016096 W12/016097 W12/016098Sample Reference 127335-1 127335-2 127335-3 127335-4
Units MethodHalogenated Aliphatic Hydrocarbons NMI 1120 Screen Carbon tetrachloride mg/kg <1 <1 <1 <1 NGCMS_1120 1,1-Dichloropropene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2-Dichloroethane mg/kg <1 <1 <1 <1 NGCMS_1120 Trichloroethene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2-Dichloropropane mg/kg <1 <1 <1 <1 NGCMS_1120 Dibromomethane mg/kg <1 <1 <1 <1 NGCMS_1120 cis-1,3-Dichloropropene mg/kg <1 <1 <1 <1 NGCMS_1120 trans-1,3-Dichloropropene mg/kg <1 <1 <1 <1 NGCMS_1120 1,1,2-Trichloroethane mg/kg <1 <1 <1 <1 NGCMS_1120 Tetrachloroethene mg/kg <1 <1 <1 <1 NGCMS_1120 1,3-Dichloropropane mg/kg <1 <1 <1 <1 NGCMS_1120 1,2-Dibromoethane mg/kg <1 <1 <1 <1 NGCMS_1120 1,1,1,2-Tetrachloroethane mg/kg <1 <1 <1 <1 NGCMS_1120 1,1,2,2-Tetrachloroethane mg/kg <1 <1 <1 <1 NGCMS_1120 1,2,3-Trichloropropane mg/kg <1 <1 <1 <1 NGCMS_1120 1,2-Dibromo-3-chloropropane mg/kg <1 <1 <1 <1 NGCMS_1120 Hexachlorobutadiene mg/kg <1 <1 <1 <1 NGCMS_1120 Halogenated Aromatic Hydrocarbons NMI 1120 Screen Chlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 Bromobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 2-Chlorotoluene mg/kg <1 <1 <1 <1 NGCMS_1120 4-Chlorotoluene mg/kg <1 <1 <1 <1 NGCMS_1120 1,3-Dichlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,4-Dichlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2-Dichlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2,4-Trichlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2,3-Trichlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 1,2,3,4-Tetrachlorobenzene mg/kg <1 <1 <1 <1 NGCMS_1120 Trihalomethanes NMI 1120 Screen Chloroform mg/kg <1 <1 <1 <1 NGCMS_1120 Bromodichloromethane mg/kg <1 <1 <1 <1 NGCMS_1120 Dibromochloromethane mg/kg <1 <1 <1 <1 NGCMS_1120 Bromoform mg/kg <1 <1 <1 <1 NGCMS_1120 Polycyclic Aromatic Hydrocarbons(volatile) NMI 1120 Screen Naphthalene mg/kg <1 <1 <1 <1 NGCMS_1120 Oxygenated Compounds NMI 1120 Screen Acetone mg/kg <5 <5 <5 <5 NGCMS_1120 2-Butanone (MEK) mg/kg <5 <5 <5 <5 NGCMS_1120 2-Hexanone (MBK) mg/kg <5 <5 <5 <5 NGCMS_1120 4-Methyl-2-pentanone (MIBK) mg/kg <5 <5 <5 <5 NGCMS_1120 Methyl tert-Butyl Ether (MTBE) mg/kg <5 <5 <5 <5 NGCMS_1120 Vinylacetate mg/kg <5 <5 <5 <5 NGCMS_1120 Other Compounds NMI 1120 Screen Carbon disulfide mg/kg <1 <1 <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 3 of 7
Report No. RN940970Lab Reg No. W12/016095 W12/016096 W12/016097 W12/016098Sample Reference 127335-1 127335-2 127335-3 127335-4
Units MethodOther Compounds NMI 1120 Screen Surrogate: DBFM %REC 109 100 112 107 NGCMS_1120 Surrogate: TOL-D8 %REC 94 94 93 93 NGCMS_1120 Surrogate: 4-BFB %REC 102 109 95 100 NGCMS_1120 Dates Date extracted 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 Date analysed 24-OCT-2012 24-OCT-2012 24-OCT-2012 24-OCT-2012
Luke Baker, AnalystOrganics - NSWAccreditation No. 198
31-OCT-2012
Lab Reg No. W12/016095 W12/016096 W12/016097 W12/016098Sample Reference 127335-1 127335-2 127335-3 127335-4
Units MethodTrace Elements Total Solids % 38.4 73.2 37.2 68.9 NT2_49
Nasir Shikdar, AnalystInorganics - NSWAccreditation No. 198
31-OCT-2012
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 4 of 7
Report No. RN940970Client : ANALYTICAL REFERENCE LAB PTY LTD Job No. : ANAL07/121018
46-48 BANKSIA ROAD Quote No. : QT-01898 WELSHPOOL WA 6106 Order No. : 15416
Date Sampled : Date Received : 22-OCT-2012
Attention : KIM ROGERS Sampled By : CLIENTProject Name : Your Client Services Manager : BRIAN WOODWARD Phone : (02) 94490151
Lab Reg No. Sample Ref Sample DescriptionW12/016099 127335-5 SOIL HR-S-4W12/016100 127335-6 SOIL QC 2
Lab Reg No. W12/016099 W12/016100Sample Reference 127335-5 127335-6
Units MethodMonocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene mg/kg <1 <1 NGCMS_1120 Toluene mg/kg <1 <1 NGCMS_1120 Ethylbenzene mg/kg <1 <1 NGCMS_1120 m & p-Xylenes mg/kg <2 <2 NGCMS_1120 o-Xylene mg/kg <1 <1 NGCMS_1120 Styrene mg/kg <1 <1 NGCMS_1120 Isopropylbenzene mg/kg <1 <1 NGCMS_1120 n-Propylbenzene mg/kg <1 <1 NGCMS_1120 1,3,5-Trimethylbenzene mg/kg <1 <1 NGCMS_1120 tert-Butylbenzene mg/kg <1 <1 NGCMS_1120 1,2,4-Trimethylbenzene mg/kg <1 <1 NGCMS_1120 sec-Butylbenzene mg/kg <1 <1 NGCMS_1120 4-Isopropyltoluene mg/kg <1 <1 NGCMS_1120 n-Butylbenzene mg/kg <1 <1 NGCMS_1120 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane mg/kg <1 <1 NGCMS_1120 Vinyl chloride mg/kg <1 <1 NGCMS_1120 Bromomethane mg/kg <1 <1 NGCMS_1120 Chloroethane mg/kg <1 <1 NGCMS_1120 Trichlorofluoromethane mg/kg <1 <1 NGCMS_1120 1,1-Dichloroethane mg/kg <1 <1 NGCMS_1120 Dichloromethane mg/kg <1 <1 NGCMS_1120 trans-1,2-Dichloroethene mg/kg <1 <1 NGCMS_1120 1,1-Dichloroethene mg/kg <1 <1 NGCMS_1120 2,2-Dichloropropane mg/kg <1 <1 NGCMS_1120 cis-1,2-Dichloroethene mg/kg <1 <1 NGCMS_1120 Bromochloromethane mg/kg <1 <1 NGCMS_1120 1,1,1-Trichloroethane mg/kg <1 <1 NGCMS_1120 Carbon tetrachloride mg/kg <1 <1 NGCMS_1120 1,1-Dichloropropene mg/kg <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 5 of 7
Report No. RN940970Lab Reg No. W12/016099 W12/016100Sample Reference 127335-5 127335-6
Units MethodHalogenated Aliphatic Hydrocarbons NMI 1120 Screen 1,2-Dichloroethane mg/kg <1 <1 NGCMS_1120 Trichloroethene mg/kg <1 <1 NGCMS_1120 1,2-Dichloropropane mg/kg <1 <1 NGCMS_1120 Dibromomethane mg/kg <1 <1 NGCMS_1120 cis-1,3-Dichloropropene mg/kg <1 <1 NGCMS_1120 trans-1,3-Dichloropropene mg/kg <1 <1 NGCMS_1120 1,1,2-Trichloroethane mg/kg <1 <1 NGCMS_1120 Tetrachloroethene mg/kg <1 <1 NGCMS_1120 1,3-Dichloropropane mg/kg <1 <1 NGCMS_1120 1,2-Dibromoethane mg/kg <1 <1 NGCMS_1120 1,1,1,2-Tetrachloroethane mg/kg <1 <1 NGCMS_1120 1,1,2,2-Tetrachloroethane mg/kg <1 <1 NGCMS_1120 1,2,3-Trichloropropane mg/kg <1 <1 NGCMS_1120 1,2-Dibromo-3-chloropropane mg/kg <1 <1 NGCMS_1120 Hexachlorobutadiene mg/kg <1 <1 NGCMS_1120 Halogenated Aromatic Hydrocarbons NMI 1120 Screen Chlorobenzene mg/kg <1 <1 NGCMS_1120 Bromobenzene mg/kg <1 <1 NGCMS_1120 2-Chlorotoluene mg/kg <1 <1 NGCMS_1120 4-Chlorotoluene mg/kg <1 <1 NGCMS_1120 1,3-Dichlorobenzene mg/kg <1 <1 NGCMS_1120 1,4-Dichlorobenzene mg/kg <1 <1 NGCMS_1120 1,2-Dichlorobenzene mg/kg <1 <1 NGCMS_1120 1,2,4-Trichlorobenzene mg/kg <1 <1 NGCMS_1120 1,2,3-Trichlorobenzene mg/kg <1 <1 NGCMS_1120 1,2,3,4-Tetrachlorobenzene mg/kg <1 <1 NGCMS_1120 Trihalomethanes NMI 1120 Screen Chloroform mg/kg <1 <1 NGCMS_1120 Bromodichloromethane mg/kg <1 <1 NGCMS_1120 Dibromochloromethane mg/kg <1 <1 NGCMS_1120 Bromoform mg/kg <1 <1 NGCMS_1120 Polycyclic Aromatic Hydrocarbons(volatile) NMI 1120 Screen Naphthalene mg/kg <1 <1 NGCMS_1120 Oxygenated Compounds NMI 1120 Screen Acetone mg/kg <5 <5 NGCMS_1120 2-Butanone (MEK) mg/kg <5 <5 NGCMS_1120 2-Hexanone (MBK) mg/kg <5 <5 NGCMS_1120 4-Methyl-2-pentanone (MIBK) mg/kg <5 <5 NGCMS_1120 Methyl tert-Butyl Ether (MTBE) mg/kg <5 <5 NGCMS_1120 Vinylacetate mg/kg <5 <5 NGCMS_1120 Other Compounds NMI 1120 Screen Carbon disulfide mg/kg <1 <1 NGCMS_1120 Surrogate: DBFM %REC 98 101 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 6 of 7
Report No. RN940970Lab Reg No. W12/016099 W12/016100Sample Reference 127335-5 127335-6
Units MethodOther Compounds NMI 1120 Screen Surrogate: TOL-D8 %REC 93 93 NGCMS_1120 Surrogate: 4-BFB %REC 106 112 NGCMS_1120 Dates Date extracted 23-OCT-2012 23-OCT-2012 Date analysed 24-OCT-2012 24-OCT-2012
Luke Baker, AnalystOrganics - NSWAccreditation No. 198
31-OCT-2012
Lab Reg No. W12/016099 W12/016100Sample Reference 127335-5 127335-6
Units MethodTrace Elements Total Solids % 67.9 65.9 NT2_49
Nasir Shikdar, AnalystInorganics - NSWAccreditation No. 198
31-OCT-2012
All results are expressed on a dry weight basis.
Accredited for compliance with ISO/IEC 17025.This report shall not be reproduced except in full.Results relate only to the sample(s) tested.
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 7 of 7
Report No. RN940970
This Report supersedes reports: RN939734 RN940933
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
Australian Government____________________________________________National Measurement Institute
REPORT OF ANALYSISPage: 1 of 6
Report No. RN940973Client : ANALYTICAL REFERENCE LAB PTY LTD Job No. : ANAL07/121018
46-48 BANKSIA ROAD Quote No. : QT-01898 WELSHPOOL WA 6106 Order No. : 15416
Date Sampled : Date Received : 22-OCT-2012
Attention : KIM ROGERS Sampled By : CLIENTProject Name : Your Client Services Manager : BRIAN WOODWARD Phone : (02) 94490151
Lab Reg No. Sample Ref Sample DescriptionW12/016101 127335-7 WATER HR-W-2W12/016102 127335-8 WATER HR-W-1W12/016103 127335-9 WATER HR-W-3W12/016104 127335-10 WATER HR-W-5
Lab Reg No. W12/016101 W12/016102 W12/016103 W12/016104Sample Reference 127335-7 127335-8 127335-9 127335-10
Units MethodMonocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene ug/L <1 <1 <1 <1 NGCMS_1120 Toluene ug/L <1 <1 <1 <1 NGCMS_1120 Ethylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 m & p-Xylenes ug/L <2 <2 <2 <2 NGCMS_1120 o-Xylene ug/L <1 <1 <1 <1 NGCMS_1120 Styrene ug/L <1 <1 <1 <1 NGCMS_1120 Isopropylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 n-Propylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,3,5-Trimethylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 tert-Butylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,2,4-Trimethylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 sec-Butylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 4-Isopropyltoluene ug/L <1 <1 <1 <1 NGCMS_1120 n-Butylbenzene ug/L <1 <1 <1 <1 NGCMS_1120 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane ug/L <1 <1 <1 <1 NGCMS_1120 Vinyl chloride ug/L <1 <1 <1 <1 NGCMS_1120 Bromomethane ug/L <1 <1 <1 <1 NGCMS_1120 Chloroethane ug/L <1 <1 <1 <1 NGCMS_1120 Trichlorofluoromethane ug/L <1 <1 <1 <1 NGCMS_1120 1,1-Dichloroethane ug/L <1 <1 <1 <1 NGCMS_1120 Dichloromethane ug/L <1 <1 <1 <1 NGCMS_1120 trans-1,2-Dichloroethene ug/L <1 <1 <1 <1 NGCMS_1120 1,1-Dichloroethene ug/L <1 <1 <1 <1 NGCMS_1120 2,2-Dichloropropane ug/L <1 <1 <1 <1 NGCMS_1120 cis-1,2-Dichloroethene ug/L <1 <1 <1 <1 NGCMS_1120 Bromochloromethane ug/L <1 <1 <1 <1 NGCMS_1120 1,1,1-Trichloroethane ug/L <1 <1 <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 2 of 6
Report No. RN940973Lab Reg No. W12/016101 W12/016102 W12/016103 W12/016104Sample Reference 127335-7 127335-8 127335-9 127335-10
Units MethodHalogenated Aliphatic Hydrocarbons NMI 1120 Screen Carbon tetrachloride ug/L <1 <1 <1 <1 NGCMS_1120 1,1-Dichloropropene ug/L <1 <1 <1 <1 NGCMS_1120 1,2-Dichloroethane ug/L <1 <1 <1 <1 NGCMS_1120 Trichloroethene ug/L <1 <1 <1 <1 NGCMS_1120 1,2-Dichloropropane ug/L <1 <1 <1 <1 NGCMS_1120 Dibromomethane ug/L <1 <1 <1 <1 NGCMS_1120 cis-1,3-Dichloropropene ug/L <1 <1 <1 <1 NGCMS_1120 trans-1,3-Dichloropropene ug/L <1 <1 <1 <1 NGCMS_1120 1,1,2-Trichloroethane ug/L <1 <1 <1 <1 NGCMS_1120 Tetrachloroethene ug/L <1 <1 <1 <1 NGCMS_1120 1,3-Dichloropropane ug/L <1 <1 <1 <1 NGCMS_1120 1,2-Dibromoethane ug/L <1 <1 <1 <1 NGCMS_1120 1,1,1,2-Tetrachloroethane ug/L <1 <1 <1 <1 NGCMS_1120 1,1,2,2-Tetrachloroethane ug/L <1 <1 <1 <1 NGCMS_1120 1,2,3-Trichloropropane ug/L <1 <1 <1 <1 NGCMS_1120 1,2-Dibromo-3-chloropropane ug/L <1 <1 <1 <1 NGCMS_1120 Hexachlorobutadiene ug/L <1 <1 <1 <1 NGCMS_1120 Halogenated Aromatic Hydrocarbons NMI 1120 Screen Chlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 Bromobenzene ug/L <1 <1 <1 <1 NGCMS_1120 2-Chlorotoluene ug/L <1 <1 <1 <1 NGCMS_1120 4-Chlorotoluene ug/L <1 <1 <1 <1 NGCMS_1120 1,3-Dichlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,4-Dichlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,2-Dichlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,2,4-Trichlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,2,3-Trichlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 1,2,3,4-Tetrachlorobenzene ug/L <1 <1 <1 <1 NGCMS_1120 Trihalomethanes NMI 1120 Screen Chloroform ug/L <1 <1 <1 <1 NGCMS_1120 Bromodichloromethane ug/L <1 <1 <1 <1 NGCMS_1120 Dibromochloromethane ug/L <1 <1 <1 <1 NGCMS_1120 Bromoform ug/L <1 <1 <1 <1 NGCMS_1120 Polycyclic Aromatic Hydrocarbons(volatile) NMI 1120 Screen Naphthalene ug/L <1 <1 <1 <1 NGCMS_1120 Oxygenated Compounds NMI 1120 Screen Acetone ug/L <10 <10 <10 <10 NGCMS_1120 Vinylacetate ug/L <10 <10 <10 <10 NGCMS_1120 2-Butanone (MEK) ug/L <10 <10 <10 <10 NGCMS_1120 4-Methyl-2-pentanone (MIBK) ug/L <10 <10 <10 <10 NGCMS_1120 2-Hexanone (MBK) ug/L <10 <10 <10 <10 NGCMS_1120 Methyl tert-Butyl Ether (MTBE) ug/L <10 <10 <10 <10 NGCMS_1120 Other Compounds NMI 1120 Screen Carbon disulfide ug/L <1 <1 <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 3 of 6
Report No. RN940973Lab Reg No. W12/016101 W12/016102 W12/016103 W12/016104Sample Reference 127335-7 127335-8 127335-9 127335-10
Units MethodOther Compounds NMI 1120 Screen Surrogate: DBFM %REC 108 121 110 123 NGCMS_1120 Surrogate: TOL-D8 %REC 107 110 107 109 NGCMS_1120 Surrogate: 4-BFB %REC 108 99 109 107 NGCMS_1120 Dates Date extracted 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 Date analysed 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012
Luke Baker, AnalystOrganics - NSWAccreditation No. 198
31-OCT-2012
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
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REPORT OF ANALYSISPage: 4 of 6
Report No. RN940973Client : ANALYTICAL REFERENCE LAB PTY LTD Job No. : ANAL07/121018
46-48 BANKSIA ROAD Quote No. : QT-01898 WELSHPOOL WA 6106 Order No. : 15416
Date Sampled : Date Received : 22-OCT-2012
Attention : KIM ROGERS Sampled By : CLIENTProject Name : Your Client Services Manager : BRIAN WOODWARD Phone : (02) 94490151
Lab Reg No. Sample Ref Sample DescriptionW12/016105 127335-11 WATER HR-W-4W12/016106 127335-12 WATER QC 1W12/016107 127335-13 WATER WESTERN STORM OUTLET
Lab Reg No. W12/016105 W12/016106 W12/016107Sample Reference 127335-11 127335-12 127335-13
Units MethodMonocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene ug/L <1 <1 <1 NGCMS_1120 Toluene ug/L <1 <1 <1 NGCMS_1120 Ethylbenzene ug/L <1 <1 <1 NGCMS_1120 m & p-Xylenes ug/L <2 <2 <2 NGCMS_1120 o-Xylene ug/L <1 <1 <1 NGCMS_1120 Styrene ug/L <1 <1 <1 NGCMS_1120 Isopropylbenzene ug/L <1 <1 <1 NGCMS_1120 n-Propylbenzene ug/L <1 <1 <1 NGCMS_1120 1,3,5-Trimethylbenzene ug/L <1 <1 <1 NGCMS_1120 tert-Butylbenzene ug/L <1 <1 <1 NGCMS_1120 1,2,4-Trimethylbenzene ug/L <1 <1 <1 NGCMS_1120 sec-Butylbenzene ug/L <1 <1 <1 NGCMS_1120 4-Isopropyltoluene ug/L <1 <1 <1 NGCMS_1120 n-Butylbenzene ug/L <1 <1 <1 NGCMS_1120 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane ug/L <1 <1 <1 NGCMS_1120 Vinyl chloride ug/L <1 <1 <1 NGCMS_1120 Bromomethane ug/L <1 <1 <1 NGCMS_1120 Chloroethane ug/L <1 <1 <1 NGCMS_1120 Trichlorofluoromethane ug/L <1 <1 <1 NGCMS_1120 1,1-Dichloroethane ug/L <1 <1 <1 NGCMS_1120 Dichloromethane ug/L <1 <1 <1 NGCMS_1120 trans-1,2-Dichloroethene ug/L <1 <1 <1 NGCMS_1120 1,1-Dichloroethene ug/L <1 <1 <1 NGCMS_1120 2,2-Dichloropropane ug/L <1 <1 <1 NGCMS_1120 cis-1,2-Dichloroethene ug/L <1 <1 <1 NGCMS_1120 Bromochloromethane ug/L <1 <1 <1 NGCMS_1120 1,1,1-Trichloroethane ug/L <1 <1 <1 NGCMS_1120 Carbon tetrachloride ug/L <1 <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 5 of 6
Report No. RN940973Lab Reg No. W12/016105 W12/016106 W12/016107Sample Reference 127335-11 127335-12 127335-13
Units MethodHalogenated Aliphatic Hydrocarbons NMI 1120 Screen 1,1-Dichloropropene ug/L <1 <1 <1 NGCMS_1120 1,2-Dichloroethane ug/L <1 <1 <1 NGCMS_1120 Trichloroethene ug/L <1 <1 <1 NGCMS_1120 1,2-Dichloropropane ug/L <1 <1 <1 NGCMS_1120 Dibromomethane ug/L <1 <1 <1 NGCMS_1120 cis-1,3-Dichloropropene ug/L <1 <1 <1 NGCMS_1120 trans-1,3-Dichloropropene ug/L <1 <1 <1 NGCMS_1120 1,1,2-Trichloroethane ug/L <1 <1 <1 NGCMS_1120 Tetrachloroethene ug/L <1 <1 <1 NGCMS_1120 1,3-Dichloropropane ug/L <1 <1 <1 NGCMS_1120 1,2-Dibromoethane ug/L <1 <1 <1 NGCMS_1120 1,1,1,2-Tetrachloroethane ug/L <1 <1 <1 NGCMS_1120 1,1,2,2-Tetrachloroethane ug/L <1 <1 <1 NGCMS_1120 1,2,3-Trichloropropane ug/L <1 <1 <1 NGCMS_1120 1,2-Dibromo-3-chloropropane ug/L <1 <1 <1 NGCMS_1120 Hexachlorobutadiene ug/L <1 <1 <1 NGCMS_1120 Halogenated Aromatic Hydrocarbons NMI 1120 Screen Chlorobenzene ug/L <1 <1 <1 NGCMS_1120 Bromobenzene ug/L <1 <1 <1 NGCMS_1120 2-Chlorotoluene ug/L <1 <1 <1 NGCMS_1120 4-Chlorotoluene ug/L <1 <1 <1 NGCMS_1120 1,3-Dichlorobenzene ug/L <1 <1 <1 NGCMS_1120 1,4-Dichlorobenzene ug/L <1 <1 <1 NGCMS_1120 1,2-Dichlorobenzene ug/L <1 <1 <1 NGCMS_1120 1,2,4-Trichlorobenzene ug/L <1 <1 <1 NGCMS_1120 1,2,3-Trichlorobenzene ug/L <1 <1 <1 NGCMS_1120 1,2,3,4-Tetrachlorobenzene ug/L <1 <1 <1 NGCMS_1120 Trihalomethanes NMI 1120 Screen Chloroform ug/L <1 <1 <1 NGCMS_1120 Bromodichloromethane ug/L <1 <1 <1 NGCMS_1120 Dibromochloromethane ug/L <1 <1 <1 NGCMS_1120 Bromoform ug/L <1 <1 <1 NGCMS_1120 Polycyclic Aromatic Hydrocarbons(volatile) NMI 1120 Screen Naphthalene ug/L <1 <1 <1 NGCMS_1120 Oxygenated Compounds NMI 1120 Screen Acetone ug/L <10 <10 <10 NGCMS_1120 Vinylacetate ug/L <10 <10 <10 NGCMS_1120 2-Butanone (MEK) ug/L <10 <10 <10 NGCMS_1120 4-Methyl-2-pentanone (MIBK) ug/L <10 <10 <10 NGCMS_1120 2-Hexanone (MBK) ug/L <10 <10 <10 NGCMS_1120 Methyl tert-Butyl Ether (MTBE) ug/L <10 <10 <10 NGCMS_1120 Other Compounds NMI 1120 Screen Carbon disulfide ug/L <1 <1 <1 NGCMS_1120
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
REPORT OF ANALYSISPage: 6 of 6
Report No. RN940973Lab Reg No. W12/016105 W12/016106 W12/016107Sample Reference 127335-11 127335-12 127335-13
Units MethodOther Compounds NMI 1120 Screen Surrogate: DBFM %REC 111 123 123 NGCMS_1120 Surrogate: TOL-D8 %REC 107 111 105 NGCMS_1120 Surrogate: 4-BFB %REC 107 101 108 NGCMS_1120 Dates Date extracted 23-OCT-2012 23-OCT-2012 23-OCT-2012 Date analysed 23-OCT-2012 23-OCT-2012 23-OCT-2012
Luke Baker, AnalystOrganics - NSWAccreditation No. 198
31-OCT-2012
Accredited for compliance with ISO/IEC 17025.This report shall not be reproduced except in full.Results relate only to the sample(s) tested.
This Report supersedes reports: RN940934
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au_______________________________________________________________________________________
N a t i o n a l M e a s u r e m e n t I n s t i t u t e
APPENDIX D
Laboratory Quality Control Reports
Quality Control ReportJob Number: 12-7335
Date: 6/11/2012
This report must not be reproduced except in full without prior written consent.
This Quality Control Report is issued in accordance with Section 18 of the ARL Quality Management Manual. All QC
parameters are contained within the relevant ARL Method as indicated by the method reference, either on this report
or the Laboratory Report.
Acceptance of Holding Times, Duplicate RPD, Spike, LCS and CRM Recoveries are determined at the time of
analysis by the Signatory indicated on the Laboratory Report.
DEFINITIONS
Duplicate Analysis
A sample, chosen randomly by the analyst at the time of sample preparation, analysed in duplicate.
RPD
Relative Percent Difference is the absolute difference between the sample and a duplicate analysis compared to the
average of the two analytical results. Acceptance Limits can be exceeded by matrix interference or when the result is
less than 5 times the LOR.
Matrix Spike
An additional portion of sample to which known amounts of the target analytes are added before sample preparation.
Acceptance Limits can be exceeded by matrix interference or when the target analytes are present in the sample.
Certified Reference Material (CRM)
A commercially available certified solution/mixture of the target analyte of known concentration.
Laboratory Control Sample (LCS)
An in-house certified solution/mixture of the target analyte of known concentration.
Page 1 of 5
Quality Control ReportJob Number: 12-7335
Date: 6/11/2012
PAH in SoilARL006
Holding Time Criteria Date
Extracted 18/10/2012
Analysed 23/10/2012
Duplicate Analysis (12-7333-A-5) RPD (%) Limits (%)
Naphthalene 0 25
2-Methylnaphthalene 0 25
Acenaphthylene 0 25
Acenaphthene 0 25
Fluorene 0 25
Phenanthrene 0 25
Anthracene 0 25
Fluoranthene 0 25
Pyrene 0 25
Benz(a)anthracene 0 25
Chrysene 0 25
Benzo(b)fluoranthene 0 25
Benzo(k)fluoranthene 0 25
Benzo(a)pyrene 0 25
Indeno(1,2,3-c,d)pyrene 0 25
Dibenz(a,h)anthracene 0 25
Benzo(ghi)perylene 0 25
Duplicate Analysis (12-7335-6) RPD (%) Limits (%)
Naphthalene 0 25
2-Methylnaphthalene 0 25
Acenaphthylene 0 25
Acenaphthene 0 25
Fluorene 0 25
Phenanthrene 0 25
Anthracene 0 25
Fluoranthene 0 25
Pyrene 0 25
Benz(a)anthracene 0 25
Chrysene 0 25
Benzo(b)fluoranthene 0 25
Benzo(k)fluoranthene 0 25
Benzo(a)pyrene 0 25
Indeno(1,2,3-c,d)pyrene 0 25
Dibenz(a,h)anthracene 0 25
Benzo(ghi)perylene 0 25
Matrix Spike (12-7333-A-5) Recovery (%) Limits (%)
Naphthalene 92 60 - 120
Page 2 of 5
Quality Control ReportJob Number: 12-7335
Date: 6/11/2012
Matrix Spike (12-7333-A-5) Recovery (%) Limits (%)
Acenaphthene 93 60 - 120
Phenanthrene 96 60 - 120
Pyrene 98 60 - 120
Chrysene 104 60 - 120
Benzo(a)pyrene 81 60 - 120
Matrix Spike (12-7335-6) Recovery (%) Limits (%)
Naphthalene 119 60 - 120
Acenaphthene 110 60 - 120
Phenanthrene 80 60 - 120
Pyrene 81 60 - 120
Chrysene 97 60 - 120
Benzo(a)pyrene 100 60 - 120
TPH in Soil/SedimentARL010
Holding Time Criteria Date
Extracted 18/10/2012
Analysed 22/10/2012
Duplicate Analysis (12-7335-6) RPD (%) Limits (%)
C6-9 0 25
C10-14 91 25
C15-28 69 25
C29-36 83 25
C>36 0 25
Matrix Spike (12-7335-6) Recovery (%) Limits (%)
C15-28 84 60 - 120
Total Petroleum Hydrocarbons - Matrix Spike
A known quantity of commercially available Diesel Fuel is spiked into the sample(s) indicated. Due to the nature of
petroleum hydrocarbons, the matrix spike recovery is reported in the TPH C15-28 Range.
Page 3 of 5
Quality Control ReportJob Number: 12-7335
Date: 6/11/2012
Certified Reference Material Recovery (%) Limits (%)
Chromium (VI) 106 80 - 120
Laboratory Control Sample Recovery (%) Limits (%)
Arsenic 98 80 - 120
Cadmium 94 80 - 120
Chromium 119 80 - 120
Copper 89 80 - 120
Nickel 90 80 - 120
Lead 87 80 - 120
Zinc 106 80 - 120
Manganese 95 80 - 120
Certified Reference Material Recovery (%) Limits (%)
Antimony 98 80 - 120
Tin 93 80 - 120
Barium 97 80 - 120
PAH in WaterARL005
Holding Time Criteria Date
Extracted 20/10/2012
Analysed 23/10/2012
Matrix Spike (12-7462-9) Recovery (%) Limits (%)
Naphthalene 103 60 - 120
Acenaphthene 98 60 - 120
Phenanthrene 111 60 - 120
Pyrene 109 60 - 120
Chrysene 104 60 - 120
Benzo(a)pyrene 100 60 - 120
TPH in WaterARL009
Holding Time Criteria Date
Extracted 24/10/2012
Analysed 25/10/2012
Matrix Spike (12-7378-6) Recovery (%) Limits (%)
C15-28 106 60 - 120
Total Petroleum Hydrocarbons - Matrix Spike
A known quantity of commercially available Diesel Fuel is spiked into the sample(s) indicated. Due to the nature of
petroleum hydrocarbons, the matrix spike recovery is reported in the TPH C15-28 Range.
Page 4 of 5
Metals in Soil
Extracted 17/10/2012 (CrVI) 23/10/2012(Metals)Analysed 17/10/2012 (CrVI) 25/10/2012(Metals)
Holding Time Criteria Date
Quality Control ReportJob Number: 12-7335
Date: 6/11/2012
Metals in Water
Holding Time Criteria Date
Analysed 17/10/2012
Duplicate Analysis (12-7331-1) RPD (%) Limits (%)
Chromium (VI) 0 25
Matrix Spike (12-7331-1) Recovery (%) Limits (%)
Chromium (VI) 117 60 - 120
Certified Reference Material Recovery (%) Limits (%)
Chromium (VI) 106 80 - 120
Arsenic - Dissolved 103 80 - 120
Barium - Dissolved 100 80 - 120
Cadmium - Dissolved 119 80 - 120
Chromium - Dissolved 87 80 - 120
Copper - Dissolved 106 80 - 120
Manganese - Dissolved 102 80 - 120
Nickel - Dissolved 118 80 - 120
Lead - Dissolved 107 80 - 120
Zinc - Dissolved 96 80 - 120
Antimony - Dissolved 97 80 - 120
Tin - Dissolved 90 80 - 120
Page 5 of 5
Quality Control ReportJob Number: 12-7435
Date: 2/11/2012
This report must not be reproduced except in full without prior written consent.
This Quality Control Report is issued in accordance with Section 18 of the ARL Quality Management Manual. All QC
parameters are contained within the relevant ARL Method as indicated by the method reference, either on this report
or the Laboratory Report.
Acceptance of Holding Times, Duplicate RPD, Spike, LCS and CRM Recoveries are determined at the time of
analysis by the Signatory indicated on the Laboratory Report.
DEFINITIONS
Duplicate Analysis
A sample, chosen randomly by the analyst at the time of sample preparation, analysed in duplicate.
RPD
Relative Percent Difference is the absolute difference between the sample and a duplicate analysis compared to the
average of the two analytical results. Acceptance Limits can be exceeded by matrix interference or when the result is
less than 5 times the LOR.
Matrix Spike
An additional portion of sample to which known amounts of the target analytes are added before sample preparation.
Acceptance Limits can be exceeded by matrix interference or when the target analytes are present in the sample.
Certified Reference Material (CRM)
A commercially available certified solution/mixture of the target analyte of known concentration.
Laboratory Control Sample (LCS)
An in-house certified solution/mixture of the target analyte of known concentration.
Page 1 of 4
Quality Control ReportJob Number: 12-7435
Date: 2/11/2012
PAH in WaterARL005
Holding Time Criteria Date
Extracted 25/10/2012
Analysed 26/10/2012
Matrix Spike (12-7435-12) Recovery (%) Limits (%)
Naphthalene 87 60 - 120
Acenaphthene 89 60 - 120
Phenanthrene 98 60 - 120
Pyrene 98 60 - 120
Chrysene 98 60 - 120
Benzo(a)pyrene 98 60 - 120
TPH in WaterARL009
Holding Time Criteria Date
Extracted 25/10/2012
Analysed 29/10/2012
Matrix Spike (12-7435-12) Recovery (%) Limits (%)
C15-28 100 60 - 120
Total Petroleum Hydrocarbons - Matrix Spike
A known quantity of commercially available Diesel Fuel is spiked into the sample(s) indicated. Due to the nature of
petroleum hydrocarbons, the matrix spike recovery is reported in the TPH C15-28 Range.
Page 2 of 4
Quality Control ReportJob Number: 12-7435
Date: 2/11/2012
Metals in Water
Certified Reference Material Recovery (%) Limits (%)
Chromium (VI) 106 80 - 120
Duplicate Analysis (12-7404-1) RPD (%) Limits (%)
Arsenic - Dissolved 0 25
Cadmium - Dissolved 0 25
Chromium - Dissolved 0 25
Copper - Dissolved 0 25
Lead - Dissolved 0 25
Duplicate Analysis (12-7406-1) RPD (%) Limits (%)
Arsenic - Dissolved 0 25
Cadmium - Dissolved 0 25
Chromium - Dissolved 0 25
Copper - Dissolved 7 25
Manganese - Dissolved 0 25
Nickel - Dissolved 0 25
Lead - Dissolved 0 25
Matrix Spike (12-7404-1) Recovery (%) Limits (%)
Arsenic - Dissolved 113 60 - 120
Cadmium - Dissolved 89 60 - 120
Chromium - Dissolved 135 60 - 120
Copper - Dissolved 105 60 - 120
Lead - Dissolved 101 60 - 120
Matrix Spike (12-7406-1) Recovery (%) Limits (%)
Arsenic - Dissolved 109 60 - 120
Cadmium - Dissolved 91 60 - 120
Chromium - Dissolved 103 60 - 120
Manganese - Dissolved 108 60 - 120
Nickel - Dissolved 119 60 - 120
Lead - Dissolved 108 60 - 120
Certified Reference Material Recovery (%) Limits (%)
Arsenic - Dissolved 103 80 - 120
Barium - Dissolved 95 80 - 120
Cadmium - Dissolved 99 80 - 120
Chromium - Dissolved 86 80 - 120
Copper - Dissolved 87 80 - 120
Manganese - Dissolved 98 80 - 120
Nickel - Dissolved 98 80 - 120
Lead - Dissolved 112 80 - 120
Zinc - Dissolved 100 80 - 120
Page 3 of 4
Analysed
Holding Time Criteria Date
19/10/12 (CrVI) 25/10/12 (Metals)
Quality Control ReportJob Number: 12-7435
Date: 2/11/2012
Certified Reference Material Recovery (%) Limits (%)
Antimony - Dissolved 100 80 - 120
Tin - Dissolved 115 80 - 120
Page 4 of 4
Page 1 of 2
QUALITY ASSURANCE REPORT
Client: ANALYTICAL REFERENCE LAB PTY LTDNMI QA Report No: ANAL07/121018 Sample Matrix: Liquid
Analyte Method LOR Blank Sample DuplicatesSample Duplicate RPD LCS Matrix Spike
ug/L ug/L ug/L ug/L % % %Organics Section
Monocyclic Aromatic HydrocarbonsBenzene NGCMS_1120 1 <1 NA NA NA 112 NAToluene NGCMS_1120 1 <1 NA NA NA 93 NAEthylbenzene NGCMS_1120 1 <1 NA NA NA - NAm,p-Xylene NGCMS_1120 2 <2 NA NA NA - NAo-Xylene NGCMS_1120 1 <1 NA NA NA - NAStyrene NGCMS_1120 1 <1 NA NA NA - NAIsopropylbenzene NGCMS_1120 1 <1 NA NA NA - NAn-Propylbenzene NGCMS_1120 1 <1 NA NA NA - NA1,3,5-Trimethylbenzene NGCMS_1120 1 <1 NA NA NA - NAtert-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,4-Trimethylbenzene NGCMS_1120 1 <1 NA NA NA - NAsec-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NA4-Isopropyltoluene NGCMS_1120 1 <1 NA NA NA - NAn-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NAHalogenated Aliphatic HydrocarbonsChloromethane NGCMS_1120 1 <1 NA NA NA - NAVinyl chloride NGCMS_1120 1 <1 NA NA NA - NABromomethane NGCMS_1120 1 <1 NA NA NA - NAChloroethane NGCMS_1120 1 <1 NA NA NA - NATrichlorofluoromethane NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloroethene NGCMS_1120 1 <1 NA NA NA 76 NADichloromethane NGCMS_1120 1 <1 NA NA NA - NAtrans-1,2-Dicloroethene NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloroethane NGCMS_1120 1 <1 NA NA NA - NA2,2-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NAcis-1,2-Dichloroethene NGCMS_1120 1 <1 NA NA NA - NABromochloromethane NGCMS_1120 1 <1 NA NA NA - NA1,1,1-Trichloroethane NGCMS_1120 1 <1 NA NA NA - NACarbon tetrachloride NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NA1,2-Dichloroethane NGCMS_1120 1 <1 NA NA NA - NATrichloroethene NGCMS_1120 1 <1 NA NA NA 89 NA1,2-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NADibromomethane NGCMS_1120 1 <1 NA NA NA - NAcis-1,3-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NAtrans-1,3-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NA1,1,2-Trichloroethane NGCMS_1120 1 <1 NA NA NA - NATetrachloroethene NGCMS_1120 1 <1 NA NA NA - NA1,3-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NA1,2-Dibromoethane NGCMS_1120 1 <1 NA NA NA - NA1,1,1,2-Tetrachloroethane NGCMS_1120 1 <1 NA NA NA - NA1,1,2,2-Tetrachloroethane NGCMS_1120 1 <1 NA NA NA - NA1,2,3-Trichloropropane NGCMS_1120 1 <1 NA NA NA - NA1,2-Dibromo-3-chloropropane NGCMS_1120 1 <1 NA NA NA - NAHexachlorobutadiene NGCMS_1120 1 <1 NA NA NA - NA
Recoveries
Australian GovernmentNational Measurement Institute
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 www.measurement.gov.au
National Measurement Institute
Page 2 of 2
QUALITY ASSURANCE REPORT
Australian GovernmentNational Measurement Institute
Analyte Method LOR Blank Sample DuplicatesSample Duplicate RPD LCS Matrix Spike
ug/L ug/L ug/L ug/L % % %Organics Section
Halogenated Aromatic HydrocarbonsChlorobenzene NGCMS_1120 1 <1 NA NA NA 99 NABromobenzene NGCMS_1120 1 <1 NA NA NA - NA2-Chlorotoluene NGCMS_1120 1 <1 NA NA NA - NA4-Chlorotoluene NGCMS_1120 1 <1 NA NA NA - NA1,3-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,4-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,4-Trichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,3-Trichlorobenzene NGCMS_1120 1 <1 NA NA NA - NATrihalomethanesChloroform NGCMS_1120 1 <1 NA NA NA 107 NABromodichloromethane NGCMS_1120 1 <1 NA NA NA - NADibromochloromethane NGCMS_1120 1 <1 NA NA NA - NABromoform NGCMS_1120 1 <1 NA NA NA - NAPAH (volatile)Naphthalene NGCMS_1120 1 <1 NA NA NA - NAOxygenated CompoundsAcetone NGCMS_1120 10 <10 NA NA NA - NAVinylacetate NGCMS_1120 10 <10 NA NA NA - NA2-Butanone (MEK) NGCMS_1120 10 <10 NA NA NA - NA4-Methyl-2-pentanone (MIBK) NGCMS_1120 10 <10 NA NA NA - NA2-Hexanone (MBK NGCMS_1120 10 <10 NA NA NA - NAMethyl tert-Butyl Ether (MTBE) NGCMS_1120 10 <10 NA NA NA - NASulfonated CompoundsCarbon disulfide NGCMS_1120 10 <10 NA NA NA - NASurrogate: DBFM NGCMS_1120 - - NA NA NA 115 NASurrogate: TOL-D8 NGCMS_1120 - - NA NA NA 103 NASurrogate: 4-BFB NGCMS_1120 - - NA NA NA 100 NA
Results expressed in percentage (%) or ug/L wherever appropriate.Acceptable Spike recovery is 70-130%Maximum acceptable RPDs on spikes and duplicates is 40%. 'NA ' = Not Applicable.RPD= Relative Percentage Difference.
Signed:Danny SleeOrganics Manager, NMI-North Ryde
Date: 31/10/2012
Recoveries
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 www.measurement.gov.au
National Measurement Institute
Page 1 of 2
QUALITY ASSURANCE REPORT
Client: ANALYTICAL REFERENCE LAB PTY LTDNMI QA Report No: ANAL07/121018 Sample Matrix: Solid
Analyte Method LOR Blank Sample DuplicatesSample Duplicate RPD LCS Matrix Spike
mg/kg mg/kg mg/kg mg/kg % % %Organics Section
Monocyclic Aromatic HydrocarbonsBenzene NGCMS_1120 1 <1 NA NA NA 124 NAToluene NGCMS_1120 1 <1 NA NA NA 128 NAEthylbenzene NGCMS_1120 1 <1 NA NA NA - NAm,p-Xylene NGCMS_1120 2 <2 NA NA NA - NAo-Xylene NGCMS_1120 1 <1 NA NA NA - NAStyrene NGCMS_1120 1 <1 NA NA NA - NAIsopropylbenzene NGCMS_1120 1 <1 NA NA NA - NAn-Propylbenzene NGCMS_1120 1 <1 NA NA NA - NA1,3,5-Trimethylbenzene NGCMS_1120 1 <1 NA NA NA - NAtert-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,4-Trimethylbenzene NGCMS_1120 1 <1 NA NA NA - NAsec-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NA4-Isopropyltoluene NGCMS_1120 1 <1 NA NA NA - NAn-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NAHalogenated Aliphatic HydrocarbonsChloromethane NGCMS_1120 2 <2 NA NA NA - NAVinyl chloride NGCMS_1120 5 <5 NA NA NA - NABromomethane NGCMS_1120 5 <5 NA NA NA - NAChloroethane NGCMS_1120 5 <5 NA NA NA - NATrichlorofluoromethane NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloroethene NGCMS_1120 1 <1 NA NA NA 130 NADichloromethane NGCMS_1120 1 <1 NA NA NA - NAtrans-1,2-Dicloroethene NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloroethane NGCMS_1120 1 <1 NA NA NA - NA2,2-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NAcis-1,2-Dichloroethene NGCMS_1120 1 <1 NA NA NA - NABromochloromethane NGCMS_1120 1 <1 NA NA NA - NA1,1,1-Trichloroethane NGCMS_1120 1 <1 NA NA NA - NACarbon tetrachloride NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NA1,2-Dichloroethane NGCMS_1120 1 <1 NA NA NA - NATrichloroethene NGCMS_1120 1 <1 NA NA NA 128 NA1,2-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NADibromomethane NGCMS_1120 1 <1 NA NA NA - NAcis-1,3-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NAtrans-1,3-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NA1,1,2-Trichloroethane NGCMS_1120 1 <1 NA NA NA - NATetrachloroethene NGCMS_1120 1 <1 NA NA NA - NA1,3-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NA1,2-Dibromoethane NGCMS_1120 1 <1 NA NA NA - NA1,1,1,2-Tetrachloroethane NGCMS_1120 1 <1 NA NA NA - NA1,1,2,2-Tetrachloroethane NGCMS_1120 1 <1 NA NA NA - NA1,2,3-Trichloropropane NGCMS_1120 1 <1 NA NA NA - NA1,2-Dibromo-3-chloropropane NGCMS_1120 1 <1 NA NA NA - NAHexachlorobutadiene NGCMS_1120 1 <1 NA NA NA - NA
Recoveries
Australian GovernmentNational Measurement Institute
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 www.measurement.gov.au
National Measurement Institute
Page 2 of 2
QUALITY ASSURANCE REPORT
Australian GovernmentNational Measurement Institute
Analyte Method LOR Blank Sample DuplicatesSample Duplicate RPD LCS Matrix Spike
mg/kg mg/kg mg/kg mg/kg % % %Organics Section
Halogenated Aromatic HydrocarbonsChlorobenzene NGCMS_1120 1 <1 NA NA NA 130 NABromobenzene NGCMS_1120 1 <1 NA NA NA - NA2-Chlorotoluene NGCMS_1120 1 <1 NA NA NA - NA4-Chlorotoluene NGCMS_1120 1 <1 NA NA NA - NA1,3-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,4-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,4-Trichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,3-Trichlorobenzene NGCMS_1120 1 <1 NA NA NA - NATrihalomethanes NGCMS_1120 1 <1 NA NA NA - NAChloroform NGCMS_1120 1 <1 NA NA NA 126 NABromodichloromethane NGCMS_1120 1 <1 NA NA NA - NADibromochloromethane NGCMS_1120 1 <1 NA NA NA - NABromoform NGCMS_1120 1 <1 NA NA NA - NAPAH (volatile)Naphthalene NGCMS_1120 1 <1 NA NA NA - NAOxygenated CompoundsAcetone NGCMS_1120 5 <5 NA NA NA - NAVinylacetate NGCMS_1120 5 <5 NA NA NA - NA2-Butanone (MEK) NGCMS_1120 5 <5 NA NA NA - NA4-Methyl-2-pentanone (MIBK) NGCMS_1120 5 <5 NA NA NA - NA2-Hexanone (MBK NGCMS_1120 5 <5 NA NA NA - NAMethyl tert-Butyl Ether (MTBE) NGCMS_1120 5 <5 NA NA NA - NASulfonated CompoundsCarbon disulfide NGCMS_1120 5 <5 NA NA NA - NASurrogate: DBFM NGCMS_1120 - - NA NA NA 99 NASurrogate: TOL-D8 NGCMS_1120 - - NA NA NA 102 NASurrogate: 4-BFB NGCMS_1120 - - NA NA NA 105 NA
Results expressed in percentage (%) or mg/kg wherever appropriate.Acceptable Spike recovery is 70-130%Maximum acceptable RPDs on spikes and duplicates is 40%. 'NA ' = Not Applicable.RPD= Relative Percentage Difference.
Signed:Danny SleeOrganics Manager, NMI-Pymble
Date: 31/10/2012
Recoveries
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 www.measurement.gov.au
National Measurement Institute
Page 1 of 2
QUALITY ASSURANCE REPORT
Client: ANALYTICAL REFERENCE LAB PTY LTDNMI QA Report No: ANAL07/121023 Sample Matrix: Liquid
Analyte Method LOR Blank Sample DuplicatesSample Duplicate RPD LCS Matrix Spike
ug/L ug/L ug/L ug/L % % %Organics Section
Monocyclic Aromatic HydrocarbonsBenzene NGCMS_1120 1 <1 NA NA NA 99 NAToluene NGCMS_1120 1 <1 NA NA NA 102 NAEthylbenzene NGCMS_1120 1 <1 NA NA NA - NAm,p-Xylene NGCMS_1120 2 <2 NA NA NA - NAo-Xylene NGCMS_1120 1 <1 NA NA NA - NAStyrene NGCMS_1120 1 <1 NA NA NA - NAIsopropylbenzene NGCMS_1120 1 <1 NA NA NA - NAn-Propylbenzene NGCMS_1120 1 <1 NA NA NA - NA1,3,5-Trimethylbenzene NGCMS_1120 1 <1 NA NA NA - NAtert-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,4-Trimethylbenzene NGCMS_1120 1 <1 NA NA NA - NAsec-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NA4-Isopropyltoluene NGCMS_1120 1 <1 NA NA NA - NAn-Butylbenzene NGCMS_1120 1 <1 NA NA NA - NAHalogenated Aliphatic HydrocarbonsChloromethane NGCMS_1120 1 <1 NA NA NA - NAVinyl chloride NGCMS_1120 1 <1 NA NA NA - NABromomethane NGCMS_1120 1 <1 NA NA NA - NAChloroethane NGCMS_1120 1 <1 NA NA NA - NATrichlorofluoromethane NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloroethene NGCMS_1120 1 <1 NA NA NA 125 NADichloromethane NGCMS_1120 1 <1 NA NA NA - NAtrans-1,2-Dicloroethene NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloroethane NGCMS_1120 1 <1 NA NA NA - NA2,2-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NAcis-1,2-Dichloroethene NGCMS_1120 1 <1 NA NA NA - NABromochloromethane NGCMS_1120 1 <1 NA NA NA - NA1,1,1-Trichloroethane NGCMS_1120 1 <1 NA NA NA - NACarbon tetrachloride NGCMS_1120 1 <1 NA NA NA - NA1,1-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NA1,2-Dichloroethane NGCMS_1120 1 <1 NA NA NA - NATrichloroethene NGCMS_1120 1 <1 NA NA NA 102 NA1,2-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NADibromomethane NGCMS_1120 1 <1 NA NA NA - NAcis-1,3-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NAtrans-1,3-Dichloropropene NGCMS_1120 1 <1 NA NA NA - NA1,1,2-Trichloroethane NGCMS_1120 1 <1 NA NA NA - NATetrachloroethene NGCMS_1120 1 <1 NA NA NA - NA1,3-Dichloropropane NGCMS_1120 1 <1 NA NA NA - NA1,2-Dibromoethane NGCMS_1120 1 <1 NA NA NA - NA1,1,1,2-Tetrachloroethane NGCMS_1120 1 <1 NA NA NA - NA1,1,2,2-Tetrachloroethane NGCMS_1120 1 <1 NA NA NA - NA1,2,3-Trichloropropane NGCMS_1120 1 <1 NA NA NA - NA1,2-Dibromo-3-chloropropane NGCMS_1120 1 <1 NA NA NA - NAHexachlorobutadiene NGCMS_1120 1 <1 NA NA NA - NA
Recoveries
Australian GovernmentNational Measurement Institute
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 www.measurement.gov.au
National Measurement Institute
Page 2 of 2
QUALITY ASSURANCE REPORT
Australian GovernmentNational Measurement Institute
Analyte Method LOR Blank Sample DuplicatesSample Duplicate RPD LCS Matrix Spike
ug/L ug/L ug/L ug/L % % %Organics Section
Halogenated Aromatic HydrocarbonsChlorobenzene NGCMS_1120 1 <1 NA NA NA 102 NABromobenzene NGCMS_1120 1 <1 NA NA NA - NA2-Chlorotoluene NGCMS_1120 1 <1 NA NA NA - NA4-Chlorotoluene NGCMS_1120 1 <1 NA NA NA - NA1,3-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,4-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2-Dichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,4-Trichlorobenzene NGCMS_1120 1 <1 NA NA NA - NA1,2,3-Trichlorobenzene NGCMS_1120 1 <1 NA NA NA - NATrihalomethanesChloroform NGCMS_1120 1 <1 NA NA NA 102 NABromodichloromethane NGCMS_1120 1 <1 NA NA NA - NADibromochloromethane NGCMS_1120 1 <1 NA NA NA - NABromoform NGCMS_1120 1 <1 NA NA NA - NAPAH (volatile)Naphthalene NGCMS_1120 1 <1 NA NA NA - NAOxygenated CompoundsAcetone NGCMS_1120 10 <10 NA NA NA - NAVinylacetate NGCMS_1120 10 <10 NA NA NA - NA2-Butanone (MEK) NGCMS_1120 10 <10 NA NA NA - NA4-Methyl-2-pentanone (MIBK) NGCMS_1120 10 <10 NA NA NA - NA2-Hexanone (MBK NGCMS_1120 10 <10 NA NA NA - NAMethyl tert-Butyl Ether (MTBE) NGCMS_1120 10 <10 NA NA NA - NASulfonated CompoundsCarbon disulfide NGCMS_1120 10 <10 NA NA NA - NASurrogate: DBFM NGCMS_1120 - - NA NA NA 100 NASurrogate: TOL-D8 NGCMS_1120 - - NA NA NA 102 NASurrogate: 4-BFB NGCMS_1120 - - NA NA NA 101 NA
Results expressed in percentage (%) or ug/L wherever appropriate.Acceptable Spike recovery is 70-130%Maximum acceptable RPDs on spikes and duplicates is 40%. 'NA ' = Not Applicable.RPD= Relative Percentage Difference.
Signed:Danny SleeOrganics Manager, NMI-North Ryde
Date: 5/11/2012
Recoveries
105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 www.measurement.gov.au
National Measurement Institute