Environmental Audit Reports
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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. As it is not environmental auditors and the conduct of possible for an audit to present all data that could be independent, high quality and rigorous environmental of interest to all readers, consideration should be audits. made to any appendices or referenced documentation An environmental audit is an assessment of the for further information. condition of the environment, or the nature and extent When information regarding the condition of a site of harm (or risk of harm) posed by an industrial changes from that at the time an audit report is process or activity, waste, substance or noise. issued, or where an administrative or computation Environmental audit reports are prepared by EPA- error is identified, environmental audit reports, appointed environmental auditors who are highly certificates and statements may be withdrawn or qualified and skilled individuals. amended by an environmental auditor. 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. Except where PDF normal format is specified, PDF files are scanned and optical character recognised by Any individual or organisation may engage appointed machine only. Accordingly, while the images are environmental auditors, who generally operate within consistent with the scanned original, the searchable the environmental consulting sector, to undertake hidden text may contain uncorrected recognition environmental audits. The EPA administers the errors that can reduce search reliability. Therefore, environmental audit system and ensures its ongoing keyword searches undertaken within the document integrity by assessing auditor applications and may not retrieve all references to the queried text. ensuring audits are independent and conducted with regard to guidelines issued by EPA. This PDF has been created using the Adobe-approved method for generating Print Optimised Output. To assure proper results, proofs must be printed, rather AUDIT FILES STRUCTURE than viewed on the screen. 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. 1 of 82 APPENDIX 2 GEO & HYDRO PTY LTD REPORT NO. Vgl-lie.doc, JUNE 1995 2 of 82 GEO & HYDRO PTY LTD ACN: 059 305 439 Excellence In Environmental Engineering CONFIDENTIAL ENVIRONMENTAL SITE ASSESSMENT SITE 1 KAMAROOKA DRIVE ESTATE WATTLE GLEN VICTORIA Prepared for: Prepared by: Rojim Lands Pty Ltd Geo & Hydro Pty Ltd d- I.J. Rickards, Darnley & Co Pty Ltd 1 14-1 18 Capel Street 320 Hallam North Road NORTH MELBOURNE VIC 3051 ENDEAVOUR HILLS VIC 3802 Project No: V9l/l/ie Report No: V91-1 ie.doc Date: June 1995 VIC 114-1 18 Capel Street, North Melbourne, 3051 Phone: (03) 326 991 1 Fax: (03) 326 91 18 NSW FAC House 246 Keith Smith Avenue, Mascot, 2020 Phone: (02) 667 0255 Fax: (02) 6673 of 820736 QLD 33 Curtin Avenue West, Eagle Farm, 4009 Phone: (07) 868 2564 Fax: (07) 268 6658 AUSTRALIA WIDE 1800 81 1 088 4 of 82 CONFIDENTIAL The environmental site assessment was carried out at Kamarooka Drive Estate, Wattle Glen, Victoria, between November 1994 and March 1995. The investigation was carried out with the aim of enabling a Certificate of Environmental Audit to be obtained for the site. Soil sampling was carried out according to the recommendations given by the Environmental Auditor. The samples were analysed for heavy metals, total cyanide, organochlorine pesticides (soil samples only) and PH- The results of the soil sampling confirm that the site is free of significant cyanide, OC, lead, arsenic, cadmium and mercury contamination to a level consistent with the limits referred to in the Australian and New Zealand Guidelines for the Assessment and Management of Contaminated Sites (ANZECC). Groundwater laboratory analysis. results confirm that the underlying groundwater is free of cyanide contamination. The detectable arsenic concentration recorded in one of the groundwater samples is within quality limits fo; irrigation and livestock water use. The concentration marginally exceeds the raw water quality guideline, however it is considered unlikely that the water is or will be used for human consumption due to its high salinity and high iron content. Page - 2 5 of 82 09lV/001/IN 1E SITE LOCATION MAP MELWAY REFERENCE: 12 G-5 copvriohl Melway Publishing Pty ud. Repmducad from MeIwly sbeet LXredmy Edii21 wim permission. 6 of 82 CONFIDENTIAL Page No. Executive Summary 2 1.o Introduction 4 1.1 Background 4 1.2 Objective 4 1.3 Scope of Works 4 2.0 Background Data 6 2.1 Introduction 6 2.2 Site Description and History 6 2.3 Regional Geology and Hydrogeology 7 2.4 Cyanide Waste - Background Data a 2.4.1 Nature of Waste a 2.4.2 Method of Disposal a 2.4.3 Chemical Properties of Cyanide a 3.0 Summary of Site Investigation Activities 9 3.1 Introduction 9 3.2 Site Inspection 9 3.3 Soil Sampling 9 3.4 Groundwater Well Installation 10 3.5 Laboratory Analysis 10 3.5.1 Soil Samples 11 3.5.2 Groundwater Samples 11 3.6 Quality Procedures 11 4.0 Results of Investigation 12 4.1 Site Inspection and Field Observations 12 4.2 Local Geology and Hydrogeology 12 4.2.1 Geological Profile 12 4.2.2 Hydrogeology 13 4.3 Laboratory Analysis Results 13 4.3.1 Acceptance Criteria 13 4.3.2 Soil Samples 13 4.3.3 Groundwater 14 4.3.4 Quality Control Samples 15 5.0 Conclusions 17 6.0 Limitations 18 APPENDIX A: Soil sample details APPENDIX B: Sample forms and analytical results APPENDIX C: Well logs APPENDIX D: Photographs APPENDIX E: Topographical maps and cross section APPENDIX F: Groundwater data APPENDIX G: Certificate of title APPENDIX H: Development plans APPENDIX I: Register of contaminated sites APPENDIX J: Environmental site assessment protocols APPENDIX K: Glossary Page - 3 7 of 82 CONFIDENTIAL I.1 Background In November 1994, Rojim Lands Pty Ltd c/- I.J. Rickards Damley & Co engaged Geo & Hydro Pty Ltd to carry out an environmental site assessment at Kamarooka Drive Estate, Wattle Glen, Victoria. A strategy for the site assessment was outlined by the Environmental Auditor is his letter to Geo & Hydro of 5 September 1994. Following completion of the desk study and site inspection, the scope of the site investigation was finalised at a meeting with the EnvironmentalAuditor on 3 February 1995. The investigation was undertaken on 7 and 19 February, and 8 March 1995 and involved soil sampling at 40 locations, installation of a groundwater monitoring well and groundwater sampling. Selected samples were sent for laboratory analysis to establish the quality of soil and groundwater at the site. 1.2 Objective The objective of the investigation was to determine the nature and extent of potential soil and groundwater contamination caused by past activities at the site with a view of removal of individual lots from the Contaminated Site Register. Following completion of site assessment work, Geo 8 Hydro were to prepare a project report for review by the Environmental Auditor with the aim of obtaining a Certificate of Environmental Audit for the site. 1.3 Scope of Works The following scope of works includes all works to be covered by Geo & Hydro in the field and in this report as part of the site assessment program for Kamarooka Drive Estate, Wattle Glen, Victoria (refer also OCS 091V/001/IN 1E): Desk study. Site inspection. Design of soil sampling program with Environmental Auditor. Soil sampling: 0 describe sub surface geology collect soil samples at 0-0.2 and 0.2-0.5 m depth from each individual lot. Groundwater well installation and sampling. Laboratory analysis of soil and groundwater samples for heavy metals, total cyanide, organochlorine pesticides (soil samples only) and pH.