INFORMATION REGARDING ENVIRONMENTAL AUDIT REPORTS August 2007 VICTORIA'S AUDIT SYSTEM AUDIT REPORT CURRENCY An environmental audit system has operated in Audit reports are based on the conditions encountered Victoria since 1989. The Environmenf Profecfion Acf and information reviewed at the time of preparation 1970 (the Act) provides for the appointment by the and do not represent any changes that may have Environment Protection Authority (EPA Victoria) of occurred since the date of completion. 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Users are Under the Act, the function of an environmental advised to check EPA's website to ensure the currency auditor is to conduct environmental audits and of the audit document. prepare environmental audit reports. Where an environmental audit is conducted to determine the PDF SEARCHABILITY AND PRINTING condition of a site or its suitability for certain uses, an environmental auditor may issue either a certificate or EPA Victoria can only certify the accuracy and statement of environmental audit. correctness of the audit report and appendices as presented in the hardcopy format. EPA is not A certificate indicates that the auditor is of the opinion responsible for any issues that arise due to problems that the site is suitable for any beneficial use defined with PDF files or printing. in the Act, whilst a statement indicates that there is some restriction on the use of the site. 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Environmental audit reports are stored digitally by This PDF is compatible with Adobe Acrobat Reader EPA in three parts: the audit report (part A), report Version 4.0 or any later version which is downloadable appendices (part B) and, where applicable, the free from Adobe's Website, www.adobe.com. certificate or statement of environmental audit and an executive summary (part C). A report may be in colour FURTHER I N FORMATION and black-and-white formats. Generally, only black- and-white documents are text searchable. For more information on Victoria's environmental Report executive summaries, findings and audit system, visit EPA's website or contact EPA's recommendations should be read and relied upon only Environmental Audit Unit. in the context of the document as a whole, including Web: www.epa.vic.clov.au/envaudit any appendices and, where applicable, any certificate Email: [email protected] or statement of environmental audit. .-- Golder Associates F+tyMd A.B.N. 64 006 107 857 Level 3,50 Burwood Road, Hawthorn, Victoria, 3 122 Australia (PO Box 6079, Hawthorn West, Vic 31 22 Australla) Telephone (031 8862 3500 S Fax (03) 8862 3501 http://www.golder.corn REPORT ON STATUTORY ENVIRONMENTAL AUDIT 14-18 PROSPECT HILL ROAD AND 3 STATION STREET CAMBERWELL FOR THE ZIG INGE GROUP Submitted to: Environment Protection Authority The Herald and Weekly Times Tower 40 City Road Southbank Victoria 3006 DISTRBUTION 1 copy - Environment Protection Authority 1 copy - Boroondara City Council 2 copies - Zig Inge Group 2 copies - Golder Associates Pty Ltd June, 2004 0 16135 2 1/002 BEST WIUIWRS 10 WOUFOR -I-=@m OFFICES IN ADEWDE, BRISBANE. CAIRNS, MAROOCHYDORE, MELBOURNE, PERM SYDNB, NEWZEAIAND, INDONESlk HONG KONG, CHINA. MAILAND, PHIUPPINES * -d -m-r&as OFFICES ACROSS NORTH AMERICA, SOUTH AMERICA. EUROPE. ASIA, AUSTRALASIA, AFRICA. --- June 2004 1 01613521/002 EXECUTIVE SUMMARY This report has been prepared by Mr Roger Parker of Golder Associates Pty Ltd and relates to an environmental audit of the site located at 14-18 Prospect Hill Road and 3 Station Street, Cambenvell. This Environmental Audit relates only to the land shown as Certificates of Title Volume 10280 Folio 735, Volume 4268 Folio 562, Volume 3700 Folio 920 and Volume 10329 Folio 090. The assessment and confmatory validation procedures provided acceptable coverage of the site and potential areas that could have been affected by contamination sources. The range of chemicals analysed was suitable to reflect the potential contaminants, The sampling frequency was sufficient for characterisation of contamination on the site and the sampling procedures were considered appropriate. QNQC data confirmed the reliability of the chemical results. The results of chemical analyses indicated that the natural materials on the site have arsenic concentrations above the Screening Criteria but within a range judged by the Auditor to be background. Following removal of fill from the site and validation, residual soil at the site was judged to be suitable to permit all relevant beneficial uses. Groundwater was considered unlikely to be contaminated as a result of the former activities on the site. However, the Auditor required that one groundwater well be installed on the expected up-gradient side of the site to assess if contamination from the former service station at 2 1 to 23 Prospect Hill Road may have impacted the site. Groundwater in the installed well was not found to be polluted with respect to the relevant groundwater segment. Based on the findings of the work undertaken by Beveridge Williams and the outcome of this Environmental Audit, a Certificate of Environmental Audit has been issues and is attached and forms part of this report. No conclusion is made about whether soil from this site would comply with EPA requirements for off-site disposal or use. Compliance .with these requirements is the responsibility of the site’s owners or occupiers. Golder Associates June 2004 11 01613521/002 TABLE OF CONTENTS SECTION PAGE AUDIT INFORMATION ........................................................................................................ N 1. INTRODUCTION ........................................................................................................... 1 .. 1.1 Purpose ofthe Rep0rt ...................................................................................................... 2 1.2 Audit Activities ............................................................................................................... 2 1.3 Elements Comprising the Site ......................................................................................... 3 2 . SITE FEATURES ........................................................................................................... 3 2.1 Site Description ............................................................................................................... 3 2.2 Site History ...................................................................................................................... 4 . 2.3 Chemicals and Wastes of Interest ................................................................................... 5 3 . SITE CONDITIONS ........... :........................................................................................... 6 3.1 Geology and Hydrogeology ............................................................................................ 6 3.2 Site Investigations ........................................................................................................... 6 3.3 Summary of Remediation Activities ............................................................................. 11 3.4 Background Soil and Groundwater Data ....................................................................... 12 4 . QUALITY AND ADEQUACY OF INFORMATION ................................................. 12 4.1 Quality of Field Activities .......................... :.................................................................. 12 4.2 Quality Control of Laboratory Analyses ....................................................................... 12 4.3 Adequacy of Information .............................................................................................