HELENA RIVER SURFACE WATER AND SEDIMENT SAMPLING REPORT OCTOBER 2012 MONITORING EVENT Prepared For: Metropolitan Redevelopment Authority 12 Lindsay Street Perth, 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 DISTRIBUTION No. of copies Report File Name Report Status 1 MRA2012-003_PMON Helena River_001_nb_V1 V1 1 MRA2012-003_PMON Helena River_001_nb_V1 V1 1 MRA2012-003_PMON Helena River_001_nb_V1 V1 1 MRA2012-003_PMON Helena River_001_nb_V1 V1 1 MRA2012-003_PMON Helena River_001_nb_V1 V1 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_v1 20 December 2012 Date 20 December 2012 20 December 2012 20 December 2012 20 December 2012 20 December 2012 Prepared for: Metropolitan Redevelopment Authority Jeremy Hogben Appointed Auditor Proposal Implementation Monitoring Branch Office of the Environmental Protection Authority Andrew Miller, DEC Contaminated Sites Branch Aurora Environmental Initials NB NB NB NB NB Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 3 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 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_v1 20 December 2012 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 4 5 3.3.1 Metal 11 3.3.2 Organic Compounds 11 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 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_v1 20 December 2012 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 i Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 ii Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 iii Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 iv Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 v Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 vi Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 vii Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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; Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 1 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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: 1 The 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 2 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 3 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event • 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 4 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 upgradient, 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* HR-2 SURVEYED COORDINATES (MGA50) E 406160.7 N 6470206.0 HR-1 HR-3 HR-5 HR-4 E 405956.6 N6470394.6 E405798.1 N6470410.1 E 405385.3 N 6470747.9 E 405235.9 N 6470723.3 DESCRIPTION South bank, accessed from Stirling Crescent. North bank, accessed from Helena East. North bank, accessed from Helena East, sampling location on upstream side of old wooden bridge. South bank, accessed through ‘Men of the Trees’ Nursery Site (off Amherst Road). South bank, accessed through ‘Men of the Trees’ Nursery Site, sampling location under Amherst Road bridge. *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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 5 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 6 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 7 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 8 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 9 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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) TPH CONCENTRATIONS (mg/kg) SAMPLE LOCATION IDENTIFICATION * 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 10 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 11 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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-S4. 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 12 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 13 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event ANALYTE RESULTS (%) Laboratory QC report 12-7435 – Matrix Spike 2 Chromium (dissolved) 135 ACCEPTABLE CRITERIA (%) 60-120 Notes: 1 Laboratory duplicate RPD percentages calculated from sample 12-7335-6 (QC2 – duplicate of HR-S-4) 2 Laboratory 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 Hexavalent Chromium Water 12-7335 PAH Water MAH Water SAMPLES AFFECTED 12-7435 12-7435 Rn940973 Rn941350 HAH Water Rn940973 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 PRESERVATION Stored on ice and acidified Stored on ice Stored on ice and acidified Stored on ice DATE SAMPLED DATE EXTRACTED HOLDING TIME* ACTUAL HOLDING TIME 15/10/12 17/10/12 1 day 2 days 17/10/12 19/10/12 17/10/12 25/10/12 7 days 8 days 15/10/12 23/10/12 7 days 8 days 17/10/12 25/10/12 15/10/12 23/10/12 7 days 8 days 14 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event ANALYTES MATRIX LAB REPORT NUMBER SAMPLES AFFECTED Rn941350 PRESERVATION DATE SAMPLED DATE EXTRACTED and acidified 17/10/12 25/10/12 HOLDING TIME* ACTUAL HOLDING TIME * 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 15 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 16 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 HRW-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 2methylnaphthalene 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 17 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 HRW-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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 18 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 19 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 C 10-36 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 inflowing 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 HRS-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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 20 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 21 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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 Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 22 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 23 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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, Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 24 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event 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. Aurora Environmental MRA2012-003_PMON Helena River_001_nb_V1 20 December 2012 25 TABLES Table 1 Helena River Surface Water Analytical Results, October 2012 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event Sample ID HR-W-2 HR-W-1 HR-W-3 HR-W-5 HR-W-4 HR-W-4 QC1 3 Date 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 RPD Calculation 15-Oct-12 15-Oct-12 RPD (%) ARL ID 12-7335-7 12-7335-8 12-7335-9 12-7335-10 12-7335-11 12-7335-11 12-7335-12 0.2 NV 1 1.4 1900 11 3.4 NV 8 NV NV NV NV 70 NV 7,000 20 500 500 20,000 5,000 200 100 NV 30,000 NV NV NV NV <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 40 40 40 40 40 <0.1 <0.1 <0.1 <0.1 <0.1 <1 <1 <1 <1 <1 <2 <2 <2 <2 <2 <1 <1 <1 <1 <1 <10 <10 <10 <10 <10 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <10 <10 <10 <10 <10 <5 <5 <5 <5 <5 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <1 <1 # <1 <1 # 40 40 # <0.1 <0.1 # <1 <1 # <2 <2 # <1 <1 # <10 <10 # <1 <1 # <1 <1 # <10 <10 # <5 <5 # <20 <20 # <20 <20 # <40 <40 # <40 <40 # C6-9 NV Zinc NV Tin 13 Lead C10-14 Nickel Manganese Copper Hexavalent Chromium Chromium Cadmium C29-36 Domestic non-potable Guidelines 2 TPH C15-28 SURFACE WATER ASSESSMENT CRITERIA 1 Fresh Water Guidelines Barium Arsenic Antimony Metals µg/L µg/L 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 contaminant 1 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 2 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 3 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 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 Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-c,d]pyrene Dibenz[a,h]anthracene Benzo[g,h,I]perylene NV NV NV NV NV NV NV NV NV NV NV NV Sample ID HR-W-2 HR-W-1 HR-W-3 HR-W-5 HR-W-4 HR-W-4 QC1 3 NV NV NV NV NV NV NV NV NV NV NV NV NV 0.01 NV NV NV Date 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 RPD Calculation 15-Oct-12 15-Oct-12 RPD (%) ARL ID 12-7335-7 12-7335-8 12-7335-9 12-7335-10 12-7335-11 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 12-7335-11 12-7335-12 <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # <0.1 <0.1 # Acenaphthylene Pyrene NV Fluoranthene NV Anthracene NV Phenanthrene NV Fluorene Benzo[b]fluoranthene Domestic non-potable Guidelines 2 Acenaphthene Chrysene SURFACE WATER ASSESSMENT CRITERIA 1 Fresh Water Guidelines 2-methylnaphthalene 16 Naphthalene Benzo[a]anthracene PAH µg/L 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 contaminant 1 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 2 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 3 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 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 Chromium Hexavalent Chromium Copper Mercury Nickel Lead Zinc C6-9 C10-14 C15-28 C29-36 Naphthalene 2-methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benzo[a]anthracene Chrysene Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-c,d]pyrene Dibenz[a,h]anthracene Benzo[g,h,I]perylene Total PAH Chloroform Bromodichloromethane Dibromochloromethane Sample ID HR-W-2 HR-W-1 5 HR-W-3 4 HR-W-5 HRW-4 6 1 Date 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 ARL ID 4524 24060 15683 22770 32037 10117 20170 28474 10-3314-4 11-4861-2 12-7335-7 4523 24059 15682 22769 32036 10116 20169 28473 10-3314-3 11-4861-1 12-7335-8 4525 24061 22771 32038 10118 20171 28475 10-3314-5 11-4861-3 12-7335-9 24063 15685 22773 32040 10120 20173 28477 10-3314-7 11-4861-5 12-7335-10 4526 24062 15684 22772 32039 10119 20172 28476 10-3314-6 11-4861-4 12-7335-11 NV 0 - 59 60 - 119 120-179 180-240 240+ NV 13 NV NV NV NV NV 70 0.2 0.2 0.5 0.8 1 2 20 NV 10 25 37 49 84 500 1 NV NV NV NV NV 500 µg/L 1.4 1.4 3 5.5 7.3 12.6 20,000 0.06 NV NV NV NV NV 10 11 11 27.5 42.9 57 99 200 3.4 3 14 25.8 40 90.8 100 8 8 20 31.2 42 72 30,000 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 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 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 µg/L 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 NV NV NV NV NV NV NV NV NV NV NV NV 0.01 NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV NV µg/L 3 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 6.5-8.5 200 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 Extremely Hard Moderate Very Hard Extremely Hard Moderate Moderate Extremely Hard Moderate Moderate Moderate Very Hard Very Hard Moderate Moderate Moderate Moderate Moderate Very Hard Very Hard Moderate Moderate Moderate Moderate Hard Moderate Very Hard Moderate Moderate Moderate Soft Moderate Hard Moderate Very Hard Moderate Moderate Moderate Soft Moderate - 1 <1 1 1 1 <1 2 <1 <1 <1 <1 1 <1 2 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1 <1 1 1 <1 <1 <1 <1 <1 1 <1 <1 1 <1 <1 <1 <1 <1 <1 <1 1 <1 1 <1 <1 <1 <1 <1 <1 <0.1 <0.1 <0.1 <0.1 <0.1 0.2 <0.1 <0.1 0.3 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.3 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.2 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 <0.1 <0.1 <0.1 <0.1 <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 <1 1 <1 1 1 <1 <1 <1 <1 <1 <1 <1 1 <1 1 1 <1 <1 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1 <1 <1 1 <1 1 1 <1 <1 <1 <1 <1 7 <1 1 <1 1 <1 <1 1 <1 <1 <1 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <1 <1 1 <1 1 22 <1 <1 2 <1 <1 <1 <1 5 <1 <1 20 1 2 5 <1 <1 <1 <1 <1 1 21 <1 1 5 <1 <1 <1 3 <1 1 36 <1 <1 3 <1 <1 <1 <1 5 <1 1 22 <1 3 5 <1 <1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <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 <1 3 3 1 23 <1 <1 <1 1 <1 <1 <1 2 5 1 8 <1 <1 1 1 <1 1 <1 2 1 8 <1 <1 <1 1 <1 1 2 2 2 4 <1 <1 <1 2 <1 1 <1 2 2 2 4 <1 <1 <1 2 <1 <1 <1 1 <1 1 1 1 1 <1 <1 <1 <1 1 3 <1 <1 2 1 1 1 <1 <1 <1 <1 <1 1 2 1 1 2 <1 <1 1 2 <1 <1 4 <1 <1 1 <1 <1 <1 <1 2 <1 <1 2 1 1 2 <1 <1 <5 10 30 32 <5 480 35 <5 220 19 <5 <5 <5 40 7 <5 260 53 <5 53 16 <5 <5 10 8 <5 250 64 <5 48 16 <5 10 34 6 <5 110 41 <5 34 18 <5 <5 10 40 6 <5 49 57 <5 37 19 <5 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 200 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 150 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <40 <40 <40 <40 <40 440 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 340 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <40 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 0.14 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 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<0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.01 <0.01 <0.01 <0.01 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.02 <0.02 <0.02 <0.02 <0.1 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <0.2 <0.2 <0.2 <0.2 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <0.2 <0.2 <0.2 <0.2 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <0.2 <0.2 <0.2 <0.32 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <0.2 <0.2 <0.2 <0.17 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <0.2 <0.2 <0.2 <0.17 <1.7 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 4.8 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 2.4 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1.2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 5.9 6.9 6.9 4.5 7 7.3 3.7 6.7 6.4 6.9 6.8 7.6 6.9 7.1 6.5 6.7 6.9 7.1 7.6 7.0 7.2 6.6 6.8 6.1 7.0 6.8 7.6 6.9 7.1 6.7 6.4 6 7.0 7.0 7.9 6.9 7.1 6.4 6.4 - 260 71 210 400 96 91 370 91 100 70 180 210 110 94 88 91 68 190 180 100 98 67 98 130 69 200 84 99 97 50 98 120 69 200 84 99 99 48 93 - Notes: PAH = Polycyclic Aromatic Hydrocarbons VOC = Volatile Organic Compounds TPH = Total Petroleum Hydrocarbons HMFWG = Hardness Modified Freshwater Guidelines mgCaCO3/L = milligrams calcium carbonate per litre µg/L = micrograms per litre ID = Identification Table must be viewed in colour NV = 'No value' established for contaminant 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 MRA2012-003_PMON Helena River_002_nb 7 Cadmium Drinking Water VOC Arsenic 1 PAH 6.5-8.5 NV NV NV NV NV NV SURFACE WATER ASSESSMENT CRITERIA Fresh Water Guidelines 'Soft' HMFWG 'Moderate' HMFWG Hard' HMFWG 'Very Hard' HMFWG 'Extremely Hard' HMFWG 2 Domestic non-potable Guidelines TPH Hardness mg CaCO3/L Metals pH (no units) Potability Suite µg/L 1 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 2 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 Table must be viewed in colour 3 Australian Drinking Water Guidelines (ADWG) (2004) as presented in the DEC (2010) Assessment Levels for Soil, Sediment and Water No river water sample was collected in February 2006 as this section of river was dry. No river water samples were collected in March and June 2007 as access to this section was not available. 6 In order of upstream (east) to downstream (west) 7 An 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 4 5 3 Table 3 Helena River Sediment Analytical Results, October 2012 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event C>36 Table must be viewed in colour NV NV 21 52 50 220 5 70 200 410 NV NV NV NV NV NV NV NV NV NV <5 <5 <5 <5 <5 <2 <2 <2 <2 <2 26 18 37 18 74 <0.1 0.2 0.5 0.2 0.9 6 12 7 5 14 <1 <1 <1 <1 <1 4 5 12 6 24 28 34 130 37 130 2 2 4 2 6 7 16 21 15 46 <1 <1 <1 7 4 12 28 52 28 93 <0.2 <0.2 <0.2 <0.2 <0.2 34 2.1 8.2 3 24 24 3.2 6.2 7.5 16 8.1 1 2.3 4.5 3.8 <0.4 <0.4 <0.4 <0.4 <0.4 <5 <5 # Notes: <2 <2 # 74 22 108% 0.9 0.1 160% 14 8 55% <1 <1 # 24 5 131% 130 39 108% 6 3 67% 46 12 117% 4 <1 # 93 13 151% <0.2 <0.2 # 24 6.4 116% 16 6.3 87% 3.8 1.9 67% <0.4 <0.4 # mg/kg 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 1 Interim Sediment Quality Guidelines (ISQG) as presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010). 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 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%). 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 MRA2012-003_PMON Helena River_002_nb C15-28 65 270 ARL# 12-7335-1 12-7335-2 12-7335-3 12-7335-4 12-7335-5 12-7335-5 12-7335-6 C10-14 NV NV C6-9 80 370 Zinc 1.5 10 Tin NV NV Lead C29-36 HR-S-4 QC2 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 RPD Calculation 15-Oct-12 15-Oct-12 RPD (%) Nickel 2 25 1 HR-S-2 HR-S-1 HR-S-3 HR-S-5 HR-S-4 Manganese 20 70 mg/kg SEDIMENT ASSESSMENT CRITERIA ISQG-Low 1 ISQG-High 2 Sample ID Date TPH Copper Hexavanent Chromium Chromium Cadmium Barium Antimony Arsenic Metals 4 Table 3 Helena River Sediment Analytical Results, October 2012 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event Benzo[a]pyrene Indeno(1,2,3-c,d)pyrene Benzo(ghi)perylene Dibenz[a,h]anthracene Low Mol. Wt. PAHs High Mol. Wt. PAHs NV NV NV NV 430 1600 NV NV NV NV 63 260 552 3160 1700 9600 HR-S-2 HR-S-1 HR-S-3 HR-S-5 HR-S-4 HR-S-4 QC2 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 15-Oct-12 RPD Calculation 15-Oct-12 15-Oct-12 RPD (%) ARL# ANALYTICAL RESULTS <100 <100 12-7335-1 <100 12-7335-2 <100 <100 <100 12-7335-3 <100 <100 12-7335-4 <100 <100 12-7335-5 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <600 <600 <600 <600 <600 <1000 <1000 <1000 <1000 <1000 <100 <100 # <100 <100 # <100 <100 # <100 <100 # <100 <100 # <100 <100 # <100 <100 # <100 <100 # <200 <200 # <200 <200 # <200 <200 # <200 <200 # <200 <200 # <200 <200 # <200 <200 # <200 <200 # <600 <600 # <1000 <1000 # 160 2100 12-7335-5 12-7335-6 Acenaphthene NV NV <100 <100 # 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 1 Interim Sediment Quality Guidelines (ISQG) as presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010). 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 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%). 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 MRA2012-003_PMON Helena River_002_nb 4 Benzo(k)fluoranthene ISQG-Low 1 ISQG-High 2 Sample ID Date 3 Benzo(b)fluoranthene 384 2800 µg/kg SEDIMENT ASSESSMENT CRITERIA 1 Benzo[a]anthracene 261 1600 Pyrene 665 2600 Fluoranthene 600 5100 Anthracene 85 1100 Phenanthrene 240 1500 Fluorene 19 540 Acenaphthalene 44 640 2-Methylnaphthalene 16 500 Naphthalene Chrysene PAH 5 Table 4 Summary of Historical Helena River Sediment Analytical Results Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event HR-S-2 HR-S-1 HR-S-3 3 Date 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 ARL ID 4530 24066 7484 15676 22778 32045 10109 20162 28480 10-33-15-2 11-4864-2 12-7335-1 4529 24065 7483 15675 22777 32044 10108 20161 28479 10-3315-1 11-4864-1 12-7335-2 4531 24067 22779 32046 10110 20163 28481 10-3315-3 11-4864-3 MRA2012-003_PMON Helena River_002_nb 80 NV 65 370 NV 270 0.15 1 21 52 50 220 200 410 NV NV NV NV NV <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.8 0.3 <0.1 <0.1 <0.1 <0.1 0.1 <0.1 <0.1 0.1 <0.1 0.1 0.2 0.2 <0.1 0.2 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.5 0.5 <0.1 6 4 18 4 21 4 4 8 4 7 3 6 11 7 30 7 10 5 11 12 9 7 5 12 24 9 21 11 9 21 21 15 23 0.03 <0.02 <0.02 <0.02 0.73 <0.02 <0.02 <0.02 <0.2 <0.02 <0.02 0.04 0.02 0.05 0.03 0.02 <0.02 0.02 0.04 <0.02 <0.02 <0.02 0.08 0.03 0.73 0.04 0.02 0.06 0.04 0.02 <0.02 2 2 7 1 5 1 1 3 5 3 1 2 5 3 12 3 5 2 4 4 3 2 2 2 12 4 5 4 3 7 8 6 9 8 11 32 5 30 5 5 13 8 18 7 7 23 20 74 16 24 13 20 36 27 20 9 16 63 42 69 36 23 96 67 66 110 24 18 92 11 190 1 2 33 29 33 19 12 20 17 180 21 18 86 21 16 15 14 10 28 56 19 60 43 27 79 70 73 96 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.6 1.1 6.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.5 2.9 4.8 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.6 2.6 3.7 <0.2 NV NV NV NV NV <0.2 <0.2 1.5 <0.2 3.1 <0.2 <0.2 24 12 8.9 <0.2 34 <0.2 <0.2 0.7 <0.2 8.3 0.6 22 27 55 48 40 2.1 <0.2 <0.2 <0.2 2.1 26 34 58 23 37 <0.4 <0.4 52 <0.4 12 <0.4 9.2 160 64 51 5.5 24 <0.4 <0.4 15 <0.4 12 11 160 140 260 270 110 3.2 <0.4 <0.4 16 36 180 200 350 130 180 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 4.1 100 64 37 <0.4 8.1 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 86 90 180 110 33 1 <0.4 <0.4 <0.4 <0.4 94 130 230 43 86 6 Dibenz[a,h]anthracene Benzo[a]anthracene <100 <200 <200 <100 <100 <200 <200 <200 <200 <200 <200 <100 <100 <200 <200 <100 <100 <200 <200 <200 <200 <200 <200 <100 <100 <200 <100 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1600 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1600 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 Low Mol. Wt. PAHs <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Benzo[a]pyrene <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Chrysene <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Pyrene 4000 45000 Fluoranthene 1700 9600 Anthracene 430 63 552 1600 260 3160 Phenanthrene 384 2800 Fluorene 261 1600 Acenaphthalene 665 2600 Acenaphthene 44 19 240 85 600 640 540 1500 1100 5100 Naphthalene C>36 C29-36 C15-28 C10-14 C6-9 Zinc Lead Nickel Mercury 16 500 µg/kg 1.5 10 4 4 16 2 19 1 1 5 7 8 7 4 10 8 33 7 9 5 10 16 10 8 4 5 27 14 22 15 11 27 26 23 38 160 2100 mg/kg 20 70 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Total PAH Sample ID 2 PAH High Mol. Wt. PAHs ISQG-Low 1 ISQG-High TPH mg/kg SEDIMENT ASSESSMENT CRITERIA 1 Copper Hexavalent Chromium Chromium Cadmium Arsenic Metals <0.4 29 11 17 <0.4 <0.4 12 21 26 29 <0.4 <0.4 15 31 40 15 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <600 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <600 <500 <500 <500 <500 <500 <500 <500 <500 <500 HR-S-5 HR-S-4 Notes: Date 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 17/02/06 19/10/06 29/03/07 28/06/07 27/09/07 20/12/07 8/04/08 18/08/08 4/11/08 16/06/10 20/07/11 15/10/12 ARL ID 12-7335-3 4533 24069 7486 15678 22781 32048 10112 20165 28483 10-3315-5 11-4864-5 12-7335-4 4532 24068 7485 15677 22780 32047 10111 20164 28482 10-3315-4 11-4864-4 12-7335-5 0.15 1 21 52 50 220 200 410 NV NV NV NV NV <5 9 8 <5 <5 <5 <5 6 <5 <5 9 <5 <5 5 6 <5 <5 <5 <5 <5 <5 <5 <5 6 <5 0.5 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 <0.1 <0.1 1.1 1 <0.1 0.2 0.1 <0.1 <0.1 <0.1 <0.1 0.1 <0.1 <0.1 0.1 0.6 <0.1 0.9 7 23 9 2 14 20 6 4 29 23 22 5 5 25 10 3 13 14 9 9 22 8 17 13 14 0.08 0.03 <0.02 0.05 0.06 0.02 0.04 0.06 0.06 0.02 <0.02 0.1 0.04 <0.02 0.02 <0.02 0.04 <0.02 0.06 <0.02 <0.02 <0.02 - 4 10 4 1 6 11 2 3 12 10 12 2 2 12 7 2 6 5 3 4 7 3 6 7 6 21 45 31 5 44 28 27 27 79 58 72 16 15 54 42 6 26 42 35 26 99 26 66 39 46 52 82 28 10 43 29 34 7 150 130 320 20 28 120 49 13 24 33 54 32 67 35 60 32 93 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.9 2.7 17 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.8 2.7 8.9 <0.2 <0.2 NV = 'No value' established for contaminant NV NV NV NV NV 1 8.2 <0.2 <0.2 0.4 <0.2 6.8 2.3 14 25 76 99 13 3 <0.2 <0.2 0.6 <0.2 3.4 2.1 30 32 78 130 51 24 6.2 <0.4 <0.4 6.4 <0.4 14 33 120 200 470 660 34 7.5 <0.4 <0.4 4.7 <0.4 8.2 28 210 190 410 810 280 16 2.3 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 70 150 330 390 12 4.5 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 120 120 220 360 87 3.8 Dibenz[a,h]anthracene Benzo[a]anthracene <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1000 <1600 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1600 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1500 <1600 2 <0.4 15 37 58 94 <0.4 <0.4 19 31 38 62 <0.4 <0.4 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 In order of upstream (east) to downstream (west) No river water samples were collected in March and June 2007 as access to this section was not available. No VOCs were detected in any sample Values that equal or exceed the guidelines are bold and underlined or shaded where applicable. 3 7 Low Mol. Wt. PAHs <100 <100 <200 <200 <100 <100 <200 <200 <200 <200 <200 <200 <100 <100 <200 <200 <100 <100 <200 <200 <200 <200 <200 <200 <100 Benzo[a]pyrene <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Chrysene <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Pyrene <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 Fluoranthene 4000 45000 Anthracene 1700 9600 Phenanthrene 430 63 552 1600 260 3160 Fluorene 384 2800 Acenaphthalene 261 1600 Acenaphthene 665 2600 Naphthalene 44 19 240 85 600 640 540 1500 1100 5100 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 Interim Sediment Quality Guidelines (ISQG) as presented in Assessment Levels for Soil, Sediment and Water (DEC, 2010). ID = Identification ARL ID = Analytical Reference Laboratory (ARL) sample number referenced on laboratory reports MRA2012-003_PMON Helena River_002_nb C>36 C29-36 C15-28 C10-14 C6-9 Zinc Lead Nickel 80 NV 65 370 NV 270 PAH = Polycyclic Aromatic Hydrocarbons VOC = Volatile Organic Compounds TPH = Total Petroleum Hydrocarbons µg/kg = micrograms per kilogram mg/kg = milligrams per kilogram 16 500 µg/kg 1.5 10 12 23 12 2 16 15 9 13 41 30 33 10 6 31 18 3 12 12 13 13 30 11 29 21 24 160 2100 mg/kg 20 70 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 Total PAH Sample ID 2 PAH High Mol. Wt. PAHs ISQG-Low 1 ISQG-High Mercury mg/kg SEDIMENT ASSESSMENT CRITERIA 1 Copper Hexavalent Chromium Chromium Cadmium Arsenic Table 4 Summary of Historical Helena River Sediment Analytical Results Helena River Surface Water and SedimentTPH Sampling Report - October 2012 Monitoring Event Metals <600 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <600 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <600 Table 5 Stormwater Outlet Analytical Results, October 2012 Helena River Surface Water and Sediment Sampling Report - October 2012 Monitoring Event Antimony Barium Cadmium Chromium Hexavalent Chromium Copper Manganese Nickel Lead Tin Zinc C6-9 C10-14 C15-28 C29-36 Sample ID Western Stormwater Outlet Passive Drain Outlet 13 NV NV 0.2 NV 1 1.4 1900 11 3.4 NV 8 NV NV NV NV 70 NV 7,000 20 500 500 20,000 5,000 200 100 NV 30,000 NV NV NV NV <1 <1 <1 <1 40 60 <0.1 <0.1 <1 <1 <2 <2 2 <1 <10 30 <1 <1 <1 <1 <10 <10 230 <5 <20 <20 <20 <20 <40 <40 <40 <40 µg/L WATER ASSESSMENT CRITERIA 1 Fresh Water Guidelines Domestic non-potable Guidelines TPH Arsenic Metals 1 Date 15-Oct-12 17-Oct-12 ARL ID 12-7335-13 12-7435-3 Notes: µg/L 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 contaminant 1 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 2 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 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 Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Benzo[a]anthracene Chrysene Benzo[b]fluoranthene Benzo[k]fluoranthene Benzo[a]pyrene Indeno[1,2,3-c,d]pyrene Dibenz[a,h]anthracene Benzo[g,h,I]perylene 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 Pyrene 2-methylnaphthalene Sample ID Western Stormwater Outlet Passive Drain Outlet 16 µg/L WATER ASSESSMENT CRITERIA 1 Fresh Water Guidelines Domestic non-potable Guidelines Naphthalene PAH 1 Date 15-Oct-12 17-Oct-12 ARL ID 12-7335-13 12-7435-3 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 contaminant 1 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 2 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 MRA2012-003_PMON Helena River_002_nb 9 FIGURES N 0 250 500 750 1000m SCALE 1 : 25 000 at A4 (MGA) PINPOINT CARTOGRAPHICS (08) 9562 7136 MRA2012-003_PMON Helena River_001_nb-f01.dgn SITE LOCATION Metropolitan Redevelopment Authority HELENA RIVER SURFACE WATER AND SEDIMENT SAMPLING REPORT OCTOBER 2012 RESULTS Drawn: N. Buckingham Date: 17 Dec 2012 REGIONAL LOCATION Figure 1 Job: MRA2012-003 PINPOINT CARTOGRAPHICS (08) 9562 7136 MRA2012-003_PMON Helena River_001_nb-f02.dgn N 0 50 100 150 200m SCALE 1 : 4 500 at A3 (MGA) SOURCE: Coffey Environments, Rpt No. EP2011-182, 22 Nov 2011. Drawn: N. Buckingham Date: 17 Dec 2012 Metropolitan Redevelopment Authority HELENA RIVER SURFACE WATER AND SEDIMENT SAMPLING REPORT OCTOBER 2012 RESULTS Figure 2 SURFACE WATER, SEDIMENT AND STORMWATER OUTLET SAMPLE LOCATIONS Job: MRA2012-003 APPENDIX A Survey Plan of Surface Water and Sediment Sampling Locations A Rev. 2 12 HR5 E 405385.3 N 6470747.9 TE RR AC E 500 Initial Issue Description OVP Drawn Date 20/07/11 SJA Checked 100 150 FILES Precal: Survey - Plan No: 92498IU - 92498mp-603a ALL DISTANCES ARE IN METRES 50 SCALE 1 : 3000 @ A3 The contents of this plan are current and correct as of the date stated within the revision panel. All consultants and persons wishing to utilise this data should satisfy themselves of the plans currency by contacting McMullen Nolan and Partners Surveyors 0 PLEASE NOTE SAMPLE AREAS HAVE BEEN LOCATED TO AN ACCURACY OF 0.5m, IN MGA50 HR4 E 405235.9 N 6470723.3 NG SH O P L W AL D RO A D SE N PL AT I 735 RO A D 806 737 738 501 502 762 HR3 E 405798.1 N 6470410.1 AY 134 NK W 787 WA T ER T A MAI N GA TE 6 16 744 746 Level 1 2 Sabre Cres. Jandakot W .A. 6164 PO Box 3526 Success W A 6964 Australia Tel: (08) 6436 1599 Fax: (08) 6436 1500 [email protected] www.mapsurvey.com.au McMullen Nolan and Partners Surveyors Pty Ltd ABN 90 009 363 311 Quality Assured Company 17 HR1 E 405956.6 N 6470394.6 745 The boundaries shown on this plan were not re-established as part of this survey, therefore this plan does not guarantee their accuracy. Existing easements, encumbrances or interests are not depicted and a title search is recommended to obtain this information. Re-establishment of the cadastral boundaries is recommended for any proposed works on or near existing boundaries. 740 739 755 807 808 804 L PL ACE TEN NI A CEN www.mapsurvey.com.au McMULLENNOLAN Land Survey Hydrographic Survey 3D Laser Scanning 3D Visualisation Mapping Solid Terrain Models Cartographics GIS Job No.- Plan/Rev. 92498MP-603A Datum MGA50 Surveyed 20.07.2011 O R I G I N A L 1:3000 BJR Sample Area Locations Scale Surveyor A 3 SWAN L 10804 MIDLAND REDEVELOPMENT AUTHORITY HR2 E 406160.7 N 6470206.0 119 5004 515 APPENDIX B October 2012 Field Notes APPENDIX C Chain of Custody Documentation and Laboratory Certificates LABORATORY REPORT ADDRESS: Aurora Environmental 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 Job Number: Revision: Date: 12-7335 00 2 November 2012 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012 PAH in Soil Sample No: Sample Description: LOR UNITS 12-7335-1 HR-S-2 12-7335-2 HR-S-1 12-7335-3 HR-S-3 12-7335-4 HR-S-5 12-7335-5 HR-S-4 Naphthalene 2-Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-c,d)pyrene Dibenz(a,h)anthracene Benzo(ghi)perylene 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 81 70 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 [NT] [NT] PAH in Soil Sample No: Sample Description: LOR UNITS 12-7335-6 QC2 Naphthalene 2-Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-c,d)pyrene Dibenz(a,h)anthracene Benzo(ghi)perylene 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 65 110 2-Fluoro-1,1'-Biphenyl (SS) p-Terphenyl-d14 (SS) 2-Fluoro-1,1'-Biphenyl (SS) p-Terphenyl-d14 (SS) 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: Sample Description: LOR UNITS 12-7335-1 HR-S-2 12-7335-2 HR-S-1 12-7335-3 HR-S-3 12-7335-4 HR-S-5 12-7335-5 HR-S-4 C6-9 C10-14 C15-28 C29-36 C>36 0.2 0.2 0.4 0.4 0.4 mg/kg mg/kg mg/kg mg/kg mg/kg <0.2 34 24 8.1 <0.4 <0.2 2.1 3.2 1.0 <0.4 <0.2 8.2 6.2 2.3 <0.4 <0.2 3.0 7.5 4.5 <0.4 <0.2 24 16 3.8 <0.4 TPH in Soil/Sediment Sample No: Sample Description: LOR UNITS 12-7335-6 QC2 C6-9 C10-14 C15-28 C29-36 C>36 0.2 0.2 0.4 0.4 0.4 mg/kg mg/kg mg/kg mg/kg mg/kg <0.2 6.4 6.3 1.9 <0.4 LOR UNITS 12-7335-1 HR-S-2 12-7335-2 HR-S-1 12-7335-3 HR-S-3 12-7335-4 HR-S-5 12-7335-5 HR-S-4 5 0.1 1 1 1 1 1 1 1 1 2 1 mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg <5 <0.1 6 4 2 7 12 26 <1 28 <2 <1 <5 0.2 12 5 2 16 28 18 <1 34 <2 <1 <5 0.5 7 12 4 21 52 37 <1 130 <2 <1 <5 0.2 5 6 2 15 28 18 <1 37 <2 7 <5 0.9 14 24 6 46 93 74 <1 130 <2 4 LOR UNITS 12-7335-6 QC2 5 0.1 1 1 1 1 1 1 1 1 2 1 mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg <5 0.1 8 5 3 12 13 22 <1 39 <2 <1 Metals in Soil and Sediment Sample No: Sample Description: Arsenic Cadmium Chromium Copper Nickel Lead Zinc Barium Chromium (VI) Manganese Antimony Tin Metals in Soil and Sediment Sample No: Sample Description: Arsenic Cadmium Chromium Copper Nickel Lead Zinc Barium Chromium (VI) Manganese Antimony Tin Page 3 of 6 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012 PAH in Water Sample No: Sample Description: LOR UNITS 12-7335-7 HR-W-2 12-7335-8 HR-W-1 12-7335-9 HR-W-3 12-7335-10 HR-W-5 12-7335-11 HR-W-4 Naphthalene 2-Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-c,d)pyrene Dibenz(a,h)anthracene Benzo(ghi)perylene 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L % % <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 64 84 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] PAH in Water Sample No: Sample Description: LOR UNITS 12-7335-12 QC1 12-7335-13 Western Stormwater Outlet Naphthalene 2-Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-c,d)pyrene Dibenz(a,h)anthracene Benzo(ghi)perylene 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 2-Fluoro-1,1'-Biphenyl (SS) p-Terphenyl-d14 (SS) Page 4 of 6 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7335 TPH in Water Sample No: Sample Description: Revision: 00 Date: 2 November 2012 LOR UNITS 12-7335-7 HR-W-2 12-7335-8 HR-W-1 12-7335-9 HR-W-3 12-7335-10 HR-W-5 12-7335-11 HR-W-4 0.02 0.02 0.04 0.04 0.04 mg/L mg/L mg/L mg/L mg/L <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 LOR UNITS 12-7335-12 QC1 12-7335-13 Western Stormwater Outlet 0.02 0.02 0.04 0.04 0.04 mg/L mg/L mg/L mg/L mg/L <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 Metals in Water Sample No: Sample Description: LOR UNITS 12-7335-7 HR-W-2 12-7335-8 HR-W-1 12-7335-9 HR-W-3 12-7335-10 HR-W-5 12-7335-11 HR-W-4 Arsenic - Dissolved Barium - Dissolved Cadmium - Dissolved Chromium - Dissolved Chromium (VI) Copper - Dissolved Manganese - Dissolved Nickel - Dissolved Lead - Dissolved Antimony - Dissolved Tin - Dissolved Zinc - Dissolved 0.001 0.01 0.0001 0.001 0.002 0.001 0.01 0.001 0.001 0.001 0.01 0.005 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L <0.001 0.04 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.04 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.04 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.04 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.04 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 Metals in Water Sample No: Sample Description: LOR UNITS 12-7335-12 QC1 12-7335-13 Western Stormwater Outlet Arsenic - Dissolved Barium - Dissolved Cadmium - Dissolved Chromium - Dissolved Chromium (VI) Copper - Dissolved Manganese - Dissolved Nickel - Dissolved Lead - Dissolved Antimony - Dissolved 0.001 0.01 0.0001 0.001 0.002 0.001 0.01 0.001 0.001 0.001 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L <0.001 0.04 <0.0001 0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.001 0.04 <0.0001 <0.001 <0.002 0.002 <0.01 <0.001 <0.001 <0.001 C6-9 C10-14 C15-28 C29-36 C>36 TPH in Water Sample No: Sample Description: C6-9 C10-14 C15-28 C29-36 C>36 Page 5 of 6 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7335 Revision: 00 Date: 2 November 2012 Metals in Water Sample No: Sample Description: LOR UNITS 12-7335-12 QC1 12-7335-13 Western Stormwater Outlet Tin - Dissolved Zinc - Dissolved 0.01 0.005 mg/L mg/L <0.01 <0.005 <0.01 0.23 Result Definitions LOR [NT] [ND] [NR] (SS) Limit of Reporting Not Tested Not Detected at indicated Limit of Reporting Analysis Not Requested Surrogate Standard Compound Page 6 of 6 LABORATORY REPORT ADDRESS: Aurora Environmental 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 Job Number: Revision: Date: 12-7435 00 2 November 2012 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7435 Revision: 00 Date: 2 November 2012 PAH in Water Sample No: Sample Description: LOR UNITS 12-7435-2 QC7 12-7435-3 Passive Drain Outlet 12-7435-5 ATA-102 12-7435-6 ATA-110 12-7435-7 ATA-109 Naphthalene 2-Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-c,d)pyrene Dibenz(a,h)anthracene Benzo(ghi)perylene 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L % % <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 93 104 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 72 75 PAH in Water Sample No: Sample Description: LOR UNITS 12-7435-8 ATA-100 12-7435-9 ATA-106 12-7435-10 ATA-108 12-7435-11 QC8 12-7435-12 QC9 Naphthalene 2-Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benz(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-c,d)pyrene Dibenz(a,h)anthracene Benzo(ghi)perylene 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L µg/L % % <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 [NT] [NT] <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 69 65 2-Fluoro-1,1'-Biphenyl (SS) p-Terphenyl-d14 (SS) 2-Fluoro-1,1'-Biphenyl (SS) p-Terphenyl-d14 (SS) Page 2 of 4 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7435 TPH in Water Sample No: Sample Description: Revision: 00 Date: 2 November 2012 LOR UNITS 12-7435-1 QC6 12-7435-2 QC7 12-7435-3 Passive Drain Outlet 12-7435-4 ATA-85-LSA-1 12-7435-5 ATA-102 0.02 0.02 0.04 0.04 0.04 mg/L mg/L mg/L mg/L mg/L <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 LOR UNITS 12-7435-6 ATA-110 12-7435-7 ATA-109 12-7435-8 ATA-100 12-7435-9 ATA-106 12-7435-10 ATA-108 0.02 0.02 0.04 0.04 0.04 mg/L mg/L mg/L mg/L mg/L <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 LOR UNITS 12-7435-11 QC8 12-7435-12 QC9 0.02 0.02 0.04 0.04 0.04 mg/L mg/L mg/L mg/L mg/L <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.02 <0.04 <0.04 <0.04 Metals in Water Sample No: Sample Description: LOR UNITS 12-7435-2 QC7 12-7435-3 Passive Drain Outlet 12-7435-5 ATA-102 12-7435-6 ATA-110 12-7435-7 ATA-109 Arsenic - Dissolved Barium - Dissolved Cadmium - Dissolved Chromium - Dissolved Chromium (VI) Copper - Dissolved Manganese - Dissolved Nickel - Dissolved Lead - Dissolved Antimony - Dissolved Tin - Dissolved Zinc - Dissolved 0.001 0.01 0.0001 0.001 0.002 0.001 0.01 0.001 0.001 0.001 0.01 0.005 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L <0.001 <0.01 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.06 <0.0001 <0.001 <0.002 <0.001 0.03 0.001 <0.001 <0.001 <0.01 <0.005 0.001 <0.01 <0.0001 <0.001 <0.002 <0.001 0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.02 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.02 <0.0001 <0.001 <0.002 <0.001 0.06 0.001 <0.001 <0.001 <0.01 <0.005 C6-9 C10-14 C15-28 C29-36 C>36 TPH in Water Sample No: Sample Description: C6-9 C10-14 C15-28 C29-36 C>36 TPH in Water Sample No: Sample Description: C6-9 C10-14 C15-28 C29-36 C>36 Page 3 of 4 LABORATORY REPORT Aurora Environmental ARL Job No: 12-7435 Revision: 00 Date: 2 November 2012 Metals in Water Sample No: Sample Description: LOR UNITS 12-7435-8 ATA-100 12-7435-9 ATA-106 12-7435-10 ATA-108 12-7435-11 QC8 12-7435-12 QC9 Arsenic - Dissolved Barium - Dissolved Cadmium - Dissolved Chromium - Dissolved Chromium (VI) Copper - Dissolved Manganese - Dissolved Nickel - Dissolved Lead - Dissolved Antimony - Dissolved Tin - Dissolved Zinc - Dissolved 0.001 0.01 0.0001 0.001 0.002 0.001 0.01 0.001 0.001 0.001 0.01 0.005 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L <0.001 0.05 <0.0001 <0.001 <0.002 <0.001 <0.01 0.002 <0.001 <0.001 <0.01 <0.005 <0.001 0.05 <0.0001 <0.001 <0.002 <0.001 <0.01 <0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.09 <0.0001 <0.001 <0.002 <0.001 <0.01 0.004 <0.001 <0.001 <0.01 <0.005 <0.001 0.02 <0.0001 <0.001 <0.002 <0.001 0.06 0.001 <0.001 <0.001 <0.01 <0.005 <0.001 0.10 <0.0001 <0.001 <0.002 <0.001 <0.01 0.004 <0.001 <0.001 <0.01 <0.005 Result Definitions LOR [NT] [ND] [NR] (SS) Limit of Reporting Not Tested Not Detected at indicated Limit of Reporting Analysis Not Requested Surrogate Standard Compound Page 4 of 4 Australian Government ____________________________________________ National Measurement Institute REPORT OF ANALYSIS Client Page: 1 of 7 Report No. RN940970 Job No. : ANAL07/121018 Quote No. : QT-01898 Order No. : 15416 Date Sampled : Date Received : 22-OCT-2012 Sampled By : CLIENT : ANALYTICAL REFERENCE LAB PTY LTD 46-48 BANKSIA ROAD WELSHPOOL WA 6106 Attention : KIM ROGERS Project Name : Your Client Services Manager Lab Reg No. W12/016095 W12/016096 W12/016097 W12/016098 Lab Reg No. Sample Reference : BRIAN WOODWARD Sample Ref 127335-1 127335-2 127335-3 127335-4 : (02) 94490151 Phone Sample Description SOIL HR-S-2 SOIL HR-S-1 SOIL HR-S-3 SOIL HR-S-5 W12/016095 127335-1 Units Monocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene mg/kg <1 Toluene mg/kg <1 Ethylbenzene mg/kg <1 m & p-Xylenes mg/kg <2 o-Xylene mg/kg <1 Styrene mg/kg <1 Isopropylbenzene mg/kg <1 n-Propylbenzene mg/kg <1 1,3,5-Trimethylbenzene mg/kg <1 tert-Butylbenzene mg/kg <1 1,2,4-Trimethylbenzene mg/kg <1 sec-Butylbenzene mg/kg <1 4-Isopropyltoluene mg/kg <1 n-Butylbenzene mg/kg <1 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane mg/kg <1 Vinyl chloride mg/kg <1 Bromomethane mg/kg <1 Chloroethane mg/kg <1 Trichlorofluoromethane mg/kg <1 1,1-Dichloroethane mg/kg <1 Dichloromethane mg/kg <1 trans-1,2-Dichloroethene mg/kg <1 1,1-Dichloroethene mg/kg <1 2,2-Dichloropropane mg/kg <1 cis-1,2-Dichloroethene mg/kg <1 Bromochloromethane mg/kg <1 1,1,1-Trichloroethane mg/kg <1 W12/016096 127335-2 W12/016097 127335-3 W12/016098 127335-4 Method <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Lab Reg No. Sample Reference W12/016095 127335-1 W12/016096 127335-2 W12/016097 127335-3 Page: 2 of 7 Report No. RN940970 W12/016098 127335-4 Method Units Halogenated 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 _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Lab Reg No. Sample Reference Units Other Compounds NMI 1120 Screen Surrogate: DBFM %REC Surrogate: TOL-D8 %REC Surrogate: 4-BFB %REC Dates Date extracted Date analysed W12/016095 127335-1 W12/016096 127335-2 W12/016097 127335-3 109 94 102 100 94 109 112 93 95 Page: 3 of 7 Report No. RN940970 W12/016098 127335-4 Method 107 93 100 NGCMS_1120 NGCMS_1120 NGCMS_1120 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 24-OCT-2012 24-OCT-2012 24-OCT-2012 24-OCT-2012 Luke Baker, Analyst Organics - NSW Accreditation No. 198 31-OCT-2012 Lab Reg No. Sample Reference W12/016095 127335-1 W12/016096 127335-2 W12/016097 127335-3 W12/016098 127335-4 Units Trace Elements Total Solids % Method 38.4 73.2 37.2 68.9 NT2_49 Nasir Shikdar, Analyst Inorganics - NSW Accreditation 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 _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Client Page: 4 of 7 Report No. RN940970 Job No. : ANAL07/121018 Quote No. : QT-01898 Order No. : 15416 Date Sampled : Date Received : 22-OCT-2012 Sampled By : CLIENT : ANALYTICAL REFERENCE LAB PTY LTD 46-48 BANKSIA ROAD WELSHPOOL WA 6106 Attention : KIM ROGERS Project Name : Your Client Services Manager Lab Reg No. W12/016099 W12/016100 Lab Reg No. Sample Reference : BRIAN WOODWARD Sample Ref 127335-5 127335-6 Phone : (02) 94490151 Sample Description SOIL HR-S-4 SOIL QC 2 W12/016099 127335-5 Units Monocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene mg/kg <1 Toluene mg/kg <1 Ethylbenzene mg/kg <1 m & p-Xylenes mg/kg <2 o-Xylene mg/kg <1 Styrene mg/kg <1 Isopropylbenzene mg/kg <1 n-Propylbenzene mg/kg <1 1,3,5-Trimethylbenzene mg/kg <1 tert-Butylbenzene mg/kg <1 1,2,4-Trimethylbenzene mg/kg <1 sec-Butylbenzene mg/kg <1 4-Isopropyltoluene mg/kg <1 n-Butylbenzene mg/kg <1 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane mg/kg <1 Vinyl chloride mg/kg <1 Bromomethane mg/kg <1 Chloroethane mg/kg <1 Trichlorofluoromethane mg/kg <1 1,1-Dichloroethane mg/kg <1 Dichloromethane mg/kg <1 trans-1,2-Dichloroethene mg/kg <1 1,1-Dichloroethene mg/kg <1 2,2-Dichloropropane mg/kg <1 cis-1,2-Dichloroethene mg/kg <1 Bromochloromethane mg/kg <1 1,1,1-Trichloroethane mg/kg <1 Carbon tetrachloride mg/kg <1 1,1-Dichloropropene mg/kg <1 W12/016100 127335-6 Method <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Page: 5 of 7 Report No. RN940970 Lab Reg No. Sample Reference W12/016099 127335-5 Units Halogenated Aliphatic Hydrocarbons NMI 1120 Screen 1,2-Dichloroethane mg/kg <1 Trichloroethene mg/kg <1 1,2-Dichloropropane mg/kg <1 Dibromomethane mg/kg <1 cis-1,3-Dichloropropene mg/kg <1 trans-1,3-Dichloropropene mg/kg <1 1,1,2-Trichloroethane mg/kg <1 Tetrachloroethene mg/kg <1 1,3-Dichloropropane mg/kg <1 1,2-Dibromoethane mg/kg <1 1,1,1,2-Tetrachloroethane mg/kg <1 1,1,2,2-Tetrachloroethane mg/kg <1 1,2,3-Trichloropropane mg/kg <1 1,2-Dibromo-3-chloropropane mg/kg <1 Hexachlorobutadiene mg/kg <1 Halogenated Aromatic Hydrocarbons NMI 1120 Screen Chlorobenzene mg/kg <1 Bromobenzene mg/kg <1 2-Chlorotoluene mg/kg <1 4-Chlorotoluene mg/kg <1 1,3-Dichlorobenzene mg/kg <1 1,4-Dichlorobenzene mg/kg <1 1,2-Dichlorobenzene mg/kg <1 1,2,4-Trichlorobenzene mg/kg <1 1,2,3-Trichlorobenzene mg/kg <1 1,2,3,4-Tetrachlorobenzene mg/kg <1 Trihalomethanes NMI 1120 Screen Chloroform mg/kg <1 Bromodichloromethane mg/kg <1 Dibromochloromethane mg/kg <1 Bromoform mg/kg <1 Polycyclic Aromatic Hydrocarbons(volatile) NMI 1120 Screen Naphthalene mg/kg <1 Oxygenated Compounds NMI 1120 Screen Acetone mg/kg <5 2-Butanone (MEK) mg/kg <5 2-Hexanone (MBK) mg/kg <5 4-Methyl-2-pentanone (MIBK) mg/kg <5 Methyl tert-Butyl Ether (MTBE) mg/kg <5 Vinylacetate mg/kg <5 Other Compounds NMI 1120 Screen Carbon disulfide mg/kg <1 Surrogate: DBFM %REC 98 W12/016100 127335-6 Method <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 NGCMS_1120 <5 <5 <5 <5 <5 <5 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 101 NGCMS_1120 NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Page: 6 of 7 Report No. RN940970 Lab Reg No. Sample Reference W12/016099 127335-5 Units Other Compounds NMI 1120 Screen Surrogate: TOL-D8 %REC Surrogate: 4-BFB %REC Dates Date extracted Date analysed W12/016100 127335-6 Method 93 106 93 112 NGCMS_1120 NGCMS_1120 23-OCT-2012 23-OCT-2012 24-OCT-2012 24-OCT-2012 Luke Baker, Analyst Organics - NSW Accreditation No. 198 31-OCT-2012 Lab Reg No. Sample Reference W12/016099 127335-5 W12/016100 127335-6 Units Trace Elements Total Solids % Method 67.9 65.9 NT2_49 Nasir Shikdar, Analyst Inorganics - NSW Accreditation 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 _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Page: 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 _______________________________________________________________________________________ National Measurement Institute Australian Government ____________________________________________ National Measurement Institute REPORT OF ANALYSIS Client Page: 1 of 6 Report No. RN940973 Job No. : ANAL07/121018 Quote No. : QT-01898 Order No. : 15416 Date Sampled : Date Received : 22-OCT-2012 Sampled By : CLIENT : ANALYTICAL REFERENCE LAB PTY LTD 46-48 BANKSIA ROAD WELSHPOOL WA 6106 Attention : KIM ROGERS Project Name : Your Client Services Manager Lab Reg No. W12/016101 W12/016102 W12/016103 W12/016104 Lab Reg No. Sample Reference : BRIAN WOODWARD Sample Ref 127335-7 127335-8 127335-9 127335-10 : (02) 94490151 Phone Sample Description WATER HR-W-2 WATER HR-W-1 WATER HR-W-3 WATER HR-W-5 W12/016101 127335-7 Units Monocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene ug/L <1 Toluene ug/L <1 Ethylbenzene ug/L <1 m & p-Xylenes ug/L <2 o-Xylene ug/L <1 Styrene ug/L <1 Isopropylbenzene ug/L <1 n-Propylbenzene ug/L <1 1,3,5-Trimethylbenzene ug/L <1 tert-Butylbenzene ug/L <1 1,2,4-Trimethylbenzene ug/L <1 sec-Butylbenzene ug/L <1 4-Isopropyltoluene ug/L <1 n-Butylbenzene ug/L <1 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane ug/L <1 Vinyl chloride ug/L <1 Bromomethane ug/L <1 Chloroethane ug/L <1 Trichlorofluoromethane ug/L <1 1,1-Dichloroethane ug/L <1 Dichloromethane ug/L <1 trans-1,2-Dichloroethene ug/L <1 1,1-Dichloroethene ug/L <1 2,2-Dichloropropane ug/L <1 cis-1,2-Dichloroethene ug/L <1 Bromochloromethane ug/L <1 1,1,1-Trichloroethane ug/L <1 W12/016102 127335-8 W12/016103 127335-9 W12/016104 127335-10 Method <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Lab Reg No. Sample Reference W12/016101 127335-7 W12/016102 127335-8 W12/016103 127335-9 Page: 2 of 6 Report No. RN940973 W12/016104 127335-10 Method Units Halogenated 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 _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Lab Reg No. Sample Reference Units Other Compounds NMI 1120 Screen Surrogate: DBFM %REC Surrogate: TOL-D8 %REC Surrogate: 4-BFB %REC Dates Date extracted Date analysed W12/016101 127335-7 W12/016102 127335-8 W12/016103 127335-9 108 107 108 121 110 99 110 107 109 Page: 3 of 6 Report No. RN940973 W12/016104 127335-10 Method 123 109 107 NGCMS_1120 NGCMS_1120 NGCMS_1120 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 Luke Baker, Analyst Organics - NSW Accreditation 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 _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Client Page: 4 of 6 Report No. RN940973 Job No. : ANAL07/121018 Quote No. : QT-01898 Order No. : 15416 Date Sampled : Date Received : 22-OCT-2012 Sampled By : CLIENT : ANALYTICAL REFERENCE LAB PTY LTD 46-48 BANKSIA ROAD WELSHPOOL WA 6106 Attention : KIM ROGERS Project Name : Your Client Services Manager Lab Reg No. W12/016105 W12/016106 W12/016107 Lab Reg No. Sample Reference : BRIAN WOODWARD Sample Ref 127335-11 127335-12 127335-13 Phone : (02) 94490151 Sample Description WATER HR-W-4 WATER QC 1 WATER WESTERN STORM OUTLET W12/016105 127335-11 Units Monocyclic Aromatic Hydrocarbons NMI 1120 Screen Benzene ug/L <1 Toluene ug/L <1 Ethylbenzene ug/L <1 m & p-Xylenes ug/L <2 o-Xylene ug/L <1 Styrene ug/L <1 Isopropylbenzene ug/L <1 n-Propylbenzene ug/L <1 1,3,5-Trimethylbenzene ug/L <1 tert-Butylbenzene ug/L <1 1,2,4-Trimethylbenzene ug/L <1 sec-Butylbenzene ug/L <1 4-Isopropyltoluene ug/L <1 n-Butylbenzene ug/L <1 Halogenated Aliphatic Hydrocarbons NMI 1120 Screen Chloromethane ug/L <1 Vinyl chloride ug/L <1 Bromomethane ug/L <1 Chloroethane ug/L <1 Trichlorofluoromethane ug/L <1 1,1-Dichloroethane ug/L <1 Dichloromethane ug/L <1 trans-1,2-Dichloroethene ug/L <1 1,1-Dichloroethene ug/L <1 2,2-Dichloropropane ug/L <1 cis-1,2-Dichloroethene ug/L <1 Bromochloromethane ug/L <1 1,1,1-Trichloroethane ug/L <1 Carbon tetrachloride ug/L <1 W12/016106 127335-12 W12/016107 127335-13 Method <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 Fax: +61 2 9449 1653 www.measurement.gov.au _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Page: 5 of 6 Report No. RN940973 Lab Reg No. Sample Reference W12/016105 127335-11 Units Halogenated Aliphatic Hydrocarbons NMI 1120 Screen 1,1-Dichloropropene ug/L <1 1,2-Dichloroethane ug/L <1 Trichloroethene ug/L <1 1,2-Dichloropropane ug/L <1 Dibromomethane ug/L <1 cis-1,3-Dichloropropene ug/L <1 trans-1,3-Dichloropropene ug/L <1 1,1,2-Trichloroethane ug/L <1 Tetrachloroethene ug/L <1 1,3-Dichloropropane ug/L <1 1,2-Dibromoethane ug/L <1 1,1,1,2-Tetrachloroethane ug/L <1 1,1,2,2-Tetrachloroethane ug/L <1 1,2,3-Trichloropropane ug/L <1 1,2-Dibromo-3-chloropropane ug/L <1 Hexachlorobutadiene ug/L <1 Halogenated Aromatic Hydrocarbons NMI 1120 Screen Chlorobenzene ug/L <1 Bromobenzene ug/L <1 2-Chlorotoluene ug/L <1 4-Chlorotoluene ug/L <1 1,3-Dichlorobenzene ug/L <1 1,4-Dichlorobenzene ug/L <1 1,2-Dichlorobenzene ug/L <1 1,2,4-Trichlorobenzene ug/L <1 1,2,3-Trichlorobenzene ug/L <1 1,2,3,4-Tetrachlorobenzene ug/L <1 Trihalomethanes NMI 1120 Screen Chloroform ug/L <1 Bromodichloromethane ug/L <1 Dibromochloromethane ug/L <1 Bromoform ug/L <1 Polycyclic Aromatic Hydrocarbons(volatile) NMI 1120 Screen Naphthalene ug/L <1 Oxygenated Compounds NMI 1120 Screen Acetone ug/L <10 Vinylacetate ug/L <10 2-Butanone (MEK) ug/L <10 4-Methyl-2-pentanone (MIBK) ug/L <10 2-Hexanone (MBK) ug/L <10 Methyl tert-Butyl Ether (MTBE) ug/L <10 Other Compounds NMI 1120 Screen Carbon disulfide ug/L <1 W12/016106 127335-12 W12/016107 127335-13 Method <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 <1 <1 <1 <1 <1 <1 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <1 <1 NGCMS_1120 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 NGCMS_1120 <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 _______________________________________________________________________________________ National Measurement Institute REPORT OF ANALYSIS Page: 6 of 6 Report No. RN940973 Lab Reg No. Sample Reference W12/016105 127335-11 Units Other Compounds NMI 1120 Screen Surrogate: DBFM %REC Surrogate: TOL-D8 %REC Surrogate: 4-BFB %REC Dates Date extracted Date analysed W12/016106 127335-12 W12/016107 127335-13 Method 111 107 107 123 111 101 123 105 108 NGCMS_1120 NGCMS_1120 NGCMS_1120 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 23-OCT-2012 Luke Baker, Analyst Organics - NSW Accreditation 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 _______________________________________________________________________________________ National Measurement Institute APPENDIX D Laboratory Quality Control Reports Quality Control Report Job 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 Report Job Number: 12-7335 Date: 6/11/2012 PAH in Soil ARL006 Page 2 of 5 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 Quality Control Report Job 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/Sediment ARL010 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 Matrix Spike (12-7335-6) 0 25 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 Report Job Number: 12-7335 Date: 6/11/2012 Metals in Soil Holding Time Criteria Date Extracted 17/10/2012 (CrVI) 23/10/2012(Metals) Analysed 17/10/2012 (CrVI) 25/10/2012(Metals) 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 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 Holding Time Criteria Date Extracted 24/10/2012 Analysed 25/10/2012 Matrix Spike (12-7378-6) Recovery (%) Limits (%) C15-28 106 60 - 120 PAH in Water ARL005 TPH in Water ARL009 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 Quality Control Report Job Number: 12-7335 Date: 6/11/2012 Metals in Water Page 5 of 5 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 Quality Control Report Job 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 Report Job Number: 12-7435 Date: 2/11/2012 PAH in Water ARL005 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 Holding Time Criteria Date Extracted 25/10/2012 Analysed 29/10/2012 Matrix Spike (12-7435-12) Recovery (%) Limits (%) C15-28 100 60 - 120 TPH in Water ARL009 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 Report Job Number: 12-7435 Date: 2/11/2012 Metals in Water Page 3 of 4 Holding Time Criteria Date Analysed 19/10/12 (CrVI) 25/10/12 (Metals) 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 Quality Control Report Job Number: 12-7435 Date: 2/11/2012 Page 4 of 4 Certified Reference Material Recovery (%) Limits (%) Antimony - Dissolved 100 80 - 120 Tin - Dissolved 115 80 - 120 Page 1 of 2 Australian Government National Measurement Institute QUALITY ASSURANCE REPORT Client: ANALYTICAL REFERENCE LAB PTY LTD NMI QA Report No: ANAL07/121018 Analyte Method Sample Matrix: Sample Duplicates Sample Duplicate RPD ug/L ug/L % Liquid LOR Blank Recoveries LCS Matrix Spike % % ug/L ug/L 1 1 1 2 1 1 1 1 1 1 1 1 1 1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 112 93 - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA - Organics Section Monocyclic Aromatic Hydrocarbons Benzene NGCMS_1120 Toluene NGCMS_1120 Ethylbenzene NGCMS_1120 m,p-Xylene NGCMS_1120 o-Xylene NGCMS_1120 NGCMS_1120 Styrene NGCMS_1120 Isopropylbenzene NGCMS_1120 n-Propylbenzene NGCMS_1120 1,3,5-Trimethylbenzene NGCMS_1120 tert-Butylbenzene NGCMS_1120 1,2,4-Trimethylbenzene NGCMS_1120 sec-Butylbenzene NGCMS_1120 4-Isopropyltoluene NGCMS_1120 n-Butylbenzene Halogenated Aliphatic Hydrocarbons NGCMS_1120 Chloromethane NGCMS_1120 Vinyl chloride NGCMS_1120 Bromomethane NGCMS_1120 Chloroethane NGCMS_1120 Trichlorofluoromethane NGCMS_1120 1,1-Dichloroethene NGCMS_1120 Dichloromethane NGCMS_1120 trans-1,2-Dicloroethene NGCMS_1120 1,1-Dichloroethane NGCMS_1120 2,2-Dichloropropane NGCMS_1120 cis-1,2-Dichloroethene Bromochloromethane NGCMS_1120 1,1,1-Trichloroethane NGCMS_1120 Carbon tetrachloride NGCMS_1120 1,1-Dichloropropene NGCMS_1120 1,2-Dichloroethane NGCMS_1120 Trichloroethene NGCMS_1120 1,2-Dichloropropane NGCMS_1120 Dibromomethane NGCMS_1120 cis-1,3-Dichloropropene NGCMS_1120 trans-1,3-Dichloropropene NGCMS_1120 1,1,2-Trichloroethane NGCMS_1120 Tetrachloroethene NGCMS_1120 1,3-Dichloropropane NGCMS_1120 1,2-Dibromoethane NGCMS_1120 1,1,1,2-Tetrachloroethane NGCMS_1120 1,1,2,2-Tetrachloroethane NGCMS_1120 1,2,3-Trichloropropane NGCMS_1120 1,2-Dibromo-3-chloropropane NGCMS_1120 Hexachlorobutadiene NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 National Measurement Institute - - 76 - 89 - www.measurement.gov.au NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Page 2 of 2 Australian Government National Measurement Institute QUALITY ASSURANCE REPORT Analyte Method LOR Blank Sample Duplicates Sample Duplicate RPD ug/L ug/L % ug/L ug/L 1 1 1 1 1 1 1 1 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 99 - NA NA NA NA NA NA NA NA NA 1 1 1 1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA 107 - NA NA NA NA 1 <1 NA NA NA - NA 10 10 10 10 10 10 <10 <10 <10 <10 <10 <10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA - NA NA NA NA NA NA 10 - <10 - NA NA NA NA NA NA NA NA NA NA NA NA 115 103 100 NA NA NA NA Recoveries LCS Matrix Spike % % Organics Section Halogenated Aromatic Hydrocarbons Chlorobenzene NGCMS_1120 Bromobenzene NGCMS_1120 2-Chlorotoluene NGCMS_1120 4-Chlorotoluene NGCMS_1120 1,3-Dichlorobenzene NGCMS_1120 1,4-Dichlorobenzene NGCMS_1120 1,2-Dichlorobenzene NGCMS_1120 1,2,4-Trichlorobenzene NGCMS_1120 1,2,3-Trichlorobenzene NGCMS_1120 Trihalomethanes Chloroform NGCMS_1120 Bromodichloromethane NGCMS_1120 Dibromochloromethane NGCMS_1120 Bromoform NGCMS_1120 PAH (volatile) Naphthalene NGCMS_1120 Oxygenated Compounds Acetone NGCMS_1120 Vinylacetate NGCMS_1120 2-Butanone (MEK) NGCMS_1120 4-Methyl-2-pentanone (MIBK) NGCMS_1120 2-Hexanone (MBK NGCMS_1120 Methyl tert-Butyl Ether (MTBE) NGCMS_1120 Sulfonated Compounds Carbon disulfide NGCMS_1120 Surrogate: DBFM NGCMS_1120 NGCMS_1120 Surrogate: TOL-D8 NGCMS_1120 Surrogate: 4-BFB 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: Date: Danny Slee Organics Manager, NMI-North Ryde 31/10/2012 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 National Measurement Institute www.measurement.gov.au Page 1 of 2 Australian Government National Measurement Institute QUALITY ASSURANCE REPORT Client: ANALYTICAL REFERENCE LAB PTY LTD NMI QA Report No: ANAL07/121018 Analyte Method Sample Matrix: Sample Duplicates Sample Duplicate RPD mg/kg mg/kg % Solid LOR Blank Recoveries LCS Matrix Spike % % mg/kg mg/kg 1 1 1 2 1 1 1 1 1 1 1 1 1 1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 124 128 - 2 5 5 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 <2 <5 <5 <5 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA - Organics Section Monocyclic Aromatic Hydrocarbons Benzene NGCMS_1120 Toluene NGCMS_1120 Ethylbenzene NGCMS_1120 m,p-Xylene NGCMS_1120 o-Xylene NGCMS_1120 NGCMS_1120 Styrene NGCMS_1120 Isopropylbenzene NGCMS_1120 n-Propylbenzene NGCMS_1120 1,3,5-Trimethylbenzene NGCMS_1120 tert-Butylbenzene NGCMS_1120 1,2,4-Trimethylbenzene NGCMS_1120 sec-Butylbenzene NGCMS_1120 4-Isopropyltoluene NGCMS_1120 n-Butylbenzene Halogenated Aliphatic Hydrocarbons NGCMS_1120 Chloromethane NGCMS_1120 Vinyl chloride NGCMS_1120 Bromomethane NGCMS_1120 Chloroethane NGCMS_1120 Trichlorofluoromethane NGCMS_1120 1,1-Dichloroethene NGCMS_1120 Dichloromethane NGCMS_1120 trans-1,2-Dicloroethene NGCMS_1120 1,1-Dichloroethane NGCMS_1120 2,2-Dichloropropane NGCMS_1120 cis-1,2-Dichloroethene Bromochloromethane NGCMS_1120 1,1,1-Trichloroethane NGCMS_1120 Carbon tetrachloride NGCMS_1120 1,1-Dichloropropene NGCMS_1120 1,2-Dichloroethane NGCMS_1120 Trichloroethene NGCMS_1120 1,2-Dichloropropane NGCMS_1120 Dibromomethane NGCMS_1120 cis-1,3-Dichloropropene NGCMS_1120 trans-1,3-Dichloropropene NGCMS_1120 1,1,2-Trichloroethane NGCMS_1120 Tetrachloroethene NGCMS_1120 1,3-Dichloropropane NGCMS_1120 1,2-Dibromoethane NGCMS_1120 1,1,1,2-Tetrachloroethane NGCMS_1120 1,1,2,2-Tetrachloroethane NGCMS_1120 1,2,3-Trichloropropane NGCMS_1120 1,2-Dibromo-3-chloropropane NGCMS_1120 Hexachlorobutadiene NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 National Measurement Institute - - 130 - 128 - www.measurement.gov.au NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Page 2 of 2 Australian Government National Measurement Institute QUALITY ASSURANCE REPORT Analyte Method Sample Duplicates Sample Duplicate RPD mg/kg mg/kg % Recoveries LCS Matrix Spike % % LOR Blank mg/kg mg/kg 1 1 1 1 1 1 1 1 1 1 1 1 1 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 130 126 - NA NA NA NA NA NA NA NA NA NA NA NA NA NA 1 <1 NA NA NA - NA 5 5 5 5 5 5 <5 <5 <5 <5 <5 <5 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA - NA NA NA NA NA NA 5 - <5 - NA NA NA NA NA NA NA NA NA NA NA NA 99 102 105 NA NA NA NA Organics Section Halogenated Aromatic Hydrocarbons Chlorobenzene NGCMS_1120 Bromobenzene NGCMS_1120 2-Chlorotoluene NGCMS_1120 4-Chlorotoluene NGCMS_1120 1,3-Dichlorobenzene NGCMS_1120 1,4-Dichlorobenzene NGCMS_1120 1,2-Dichlorobenzene NGCMS_1120 1,2,4-Trichlorobenzene NGCMS_1120 1,2,3-Trichlorobenzene NGCMS_1120 Trihalomethanes NGCMS_1120 Chloroform NGCMS_1120 Bromodichloromethane NGCMS_1120 Dibromochloromethane NGCMS_1120 Bromoform NGCMS_1120 PAH (volatile) Naphthalene NGCMS_1120 Oxygenated Compounds Acetone NGCMS_1120 Vinylacetate NGCMS_1120 2-Butanone (MEK) NGCMS_1120 4-Methyl-2-pentanone (MIBK) NGCMS_1120 2-Hexanone (MBK NGCMS_1120 Methyl tert-Butyl Ether (MTBE) NGCMS_1120 Sulfonated Compounds Carbon disulfide NGCMS_1120 Surrogate: DBFM NGCMS_1120 NGCMS_1120 Surrogate: TOL-D8 NGCMS_1120 Surrogate: 4-BFB 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: Date: Danny Slee Organics Manager, NMI-Pymble 31/10/2012 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 National Measurement Institute www.measurement.gov.au Page 1 of 2 Australian Government National Measurement Institute QUALITY ASSURANCE REPORT Client: ANALYTICAL REFERENCE LAB PTY LTD NMI QA Report No: ANAL07/121023 Analyte Method Sample Matrix: Sample Duplicates Sample Duplicate RPD ug/L ug/L % Liquid LOR Blank Recoveries LCS Matrix Spike % % ug/L ug/L 1 1 1 2 1 1 1 1 1 1 1 1 1 1 <1 <1 <1 <2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 99 102 - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA - Organics Section Monocyclic Aromatic Hydrocarbons Benzene NGCMS_1120 Toluene NGCMS_1120 Ethylbenzene NGCMS_1120 m,p-Xylene NGCMS_1120 o-Xylene NGCMS_1120 NGCMS_1120 Styrene NGCMS_1120 Isopropylbenzene NGCMS_1120 n-Propylbenzene NGCMS_1120 1,3,5-Trimethylbenzene NGCMS_1120 tert-Butylbenzene NGCMS_1120 1,2,4-Trimethylbenzene NGCMS_1120 sec-Butylbenzene NGCMS_1120 4-Isopropyltoluene NGCMS_1120 n-Butylbenzene Halogenated Aliphatic Hydrocarbons NGCMS_1120 Chloromethane NGCMS_1120 Vinyl chloride NGCMS_1120 Bromomethane NGCMS_1120 Chloroethane NGCMS_1120 Trichlorofluoromethane NGCMS_1120 1,1-Dichloroethene NGCMS_1120 Dichloromethane NGCMS_1120 trans-1,2-Dicloroethene NGCMS_1120 1,1-Dichloroethane NGCMS_1120 2,2-Dichloropropane NGCMS_1120 cis-1,2-Dichloroethene Bromochloromethane NGCMS_1120 1,1,1-Trichloroethane NGCMS_1120 Carbon tetrachloride NGCMS_1120 1,1-Dichloropropene NGCMS_1120 1,2-Dichloroethane NGCMS_1120 Trichloroethene NGCMS_1120 1,2-Dichloropropane NGCMS_1120 Dibromomethane NGCMS_1120 cis-1,3-Dichloropropene NGCMS_1120 trans-1,3-Dichloropropene NGCMS_1120 1,1,2-Trichloroethane NGCMS_1120 Tetrachloroethene NGCMS_1120 1,3-Dichloropropane NGCMS_1120 1,2-Dibromoethane NGCMS_1120 1,1,1,2-Tetrachloroethane NGCMS_1120 1,1,2,2-Tetrachloroethane NGCMS_1120 1,2,3-Trichloropropane NGCMS_1120 1,2-Dibromo-3-chloropropane NGCMS_1120 Hexachlorobutadiene NGCMS_1120 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 National Measurement Institute - - 125 - 102 - www.measurement.gov.au NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Page 2 of 2 Australian Government National Measurement Institute QUALITY ASSURANCE REPORT Analyte Method LOR Blank Sample Duplicates Sample Duplicate RPD ug/L ug/L % ug/L ug/L 1 1 1 1 1 1 1 1 1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 102 - NA NA NA NA NA NA NA NA NA 1 1 1 1 <1 <1 <1 <1 NA NA NA NA NA NA NA NA NA NA NA NA 102 - NA NA NA NA 1 <1 NA NA NA - NA 10 10 10 10 10 10 <10 <10 <10 <10 <10 <10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA - NA NA NA NA NA NA 10 - <10 - NA NA NA NA NA NA NA NA NA NA NA NA 100 102 101 NA NA NA NA Recoveries LCS Matrix Spike % % Organics Section Halogenated Aromatic Hydrocarbons Chlorobenzene NGCMS_1120 Bromobenzene NGCMS_1120 2-Chlorotoluene NGCMS_1120 4-Chlorotoluene NGCMS_1120 1,3-Dichlorobenzene NGCMS_1120 1,4-Dichlorobenzene NGCMS_1120 1,2-Dichlorobenzene NGCMS_1120 1,2,4-Trichlorobenzene NGCMS_1120 1,2,3-Trichlorobenzene NGCMS_1120 Trihalomethanes Chloroform NGCMS_1120 Bromodichloromethane NGCMS_1120 Dibromochloromethane NGCMS_1120 Bromoform NGCMS_1120 PAH (volatile) Naphthalene NGCMS_1120 Oxygenated Compounds Acetone NGCMS_1120 Vinylacetate NGCMS_1120 2-Butanone (MEK) NGCMS_1120 4-Methyl-2-pentanone (MIBK) NGCMS_1120 2-Hexanone (MBK NGCMS_1120 Methyl tert-Butyl Ether (MTBE) NGCMS_1120 Sulfonated Compounds Carbon disulfide NGCMS_1120 Surrogate: DBFM NGCMS_1120 NGCMS_1120 Surrogate: TOL-D8 NGCMS_1120 Surrogate: 4-BFB 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: Date: Danny Slee Organics Manager, NMI-North Ryde 5/11/2012 105 Delhi Road, North Ryde NSW 2113 Tel: +61 2 9449 0111 National Measurement Institute www.measurement.gov.au
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