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Environmental Audit Report Site of Proposed Marine & Freshwater Resources Institute, Queenscliff Prepred. for Atkinson Project Management Pty Ltd on behalf of the Victorian Department of Natural Resources & Environment 28 August 2000 URS Australia Pty Ltd ACN 000-69 1-690 URS House, 658 Church Street Melbourne VIC 3121, Australia Tel: +6 1 (3) 9279 2888 Fax: +6 1 (3) 9279 2850 Volume One - Report Contents - ~~ 1 1.1 Background 1-1 1.2 Purpose of Report 1-1 1.3 Parties Involved 1-1 1.4 Phases of the Audit 1-2 2 3 4 5. 5.1 Site Location 5-1 5.2 Land Description 5-1 5.2.1 On-Site Activities and Uses 5-1 5.2.2 Neighbouring Land Uses 5-1 5.3 Geology and Hydrogeology 5-2 5.4 Site Characteristics 5-3 5.4.1 Topography, Vegetation, Drainage and Natural Watercourses 5-3 5.5 Site History 5-4 5.5.1 Previous Land Uses 5-4 5.5.2 Raw Materials and Products Handled and Stored 5-4 5.5.3 Typical Operations of the Landfill and Municipal Depot 5-5 5.6 Visual Inspection 5-5 6 6.1 Environmental Policy Framework and Environmental Values 6-1 6.2 National and International Agreements 6-1 6.3 State Environmental Planning Policy Framework 6-2 6.4 Recreational Values 6-5 7 Environmental Values and Beneficial Uses of Land .......................... 7-1 7.1 Assessment of Beneficial Uses 7-1 7.2 Previous Beneficial Uses 7-1 7.3 Proposed or Possible Beneficial Uses 7-2 7.4 Relevant Elements 7-2 8 8.1 On-Site Sources 8-1 8.2 Off-Site Sources 8-1 8.3 Contaminants of Concern - 8-1 i -uRs Contents 9 9.1 Purpose of Guidelines Used for Assessment 9-1 9.2 ANZECC Assessment Guidelines 9-1 9.2.1 Environmental Investigation Criteria 9-1 9.2.2 Health investigation levels 9-2 9.3 NEHF Assessment Guidelines 9-2 9.4 Status of Groundwater in an Audit 9-3 9.5 Groundwater Assessment Guidelines 9-3 9.6 Other Guidelines Adopted by Auditor 9-3 10 10.1 Soil 10-1 10.1.I Soil Contamination 10-1 10. i .2 Aesthetic Qualities of Soil 10.1.3 Acid Sulphate Soils 10-2 4 10.2 Groundwater 10-2 10.3 Volatile Organic Compounds and Landfill gas 10-4 10.4 Waters of Swan bay 10-5 10.5 Quality of Site Assessment Data 10-6 10.5.1 Summary Findings of Auditor’s Assessment of Data Quality 10-6 10.5.2 Laboratories Used by Site Assessor 10-6 10.5.3 Reliability of Analytical Methods 10-6 10.5.4 Analytical Data Validation 10-7 10.5.5 Evaluation of Data QNQC 10-8 10.5.6 Sampling Spatial Density and Analytical Density 10-10 11 11.1 Soil 11-1 11.2 Landfill Leachate and Groundwater 11-1 11.3 Contaminants Encountered in Groundwater 11-2 11.4 Groundwater Quality and Beneficial Uses 11.5 Fate of Contaminated Groundwater 11-6 11.6 Auditor’s Assessment of Adequacy of Site Assessment 11-6 12 12.1 Preliminary Assessment of Risks 12-1 12.1.1 Potential On-site Health and Ecological Risks 12-1 12.1.2 Landfill gas risks 12-2 12.1.3 Potential Aggressive Ground Conditions for Footing and Foundations 12-2 12.1.4 Potential Off-site Risk Issues 12-3 12.2 Uncertainties and Data Gaps 12-4 12.3 Preliminary Review of Groundwater Remediation Options 12-6 12.4 Hydrogeological Review 12-7 12.4.1 Objectives and scope 12-7 12.4.2 Review of previous groundwater investigations 12-7 12.4.3 Refined hydrogeological conceptual model - 12-8 XX7-AUG-00 .. 11 -uIps Contents 13 13.1 Groundwater Management 13-1 13.2 Documented Environmental Strategy 13-3 14 14.1 Findings of Audit 14-1 14.2 Statement of Environmental Audit 14-2 15 16 ~~ )C\27-AUG-00 ... 111 URS List of Tables, Figures, Plates & Appendices 4 Tables Table 1 Summary Results for Soil Analyses Table 2 Summary Results for Groundwater Analyses Table 3 Water Quality of Swan Bay, 1980/81 to 1983/84 Table 4 Summary of Groundwater and Swan Bay Water Quality Data Table 5 Estimated Contaminant Loads to Swan Bay for Full Width of Landfill Table 6 Estimated Contaminant Loads to Swan Bay for Site Only Figures Figure 1 Site Locality Plan Figure 2 MAFRI - Proposed Development Layout Figure 3 Site Layout, Extent of Landfill and Boundary of Audited Site Figure 4 Regional Geology Figure 5 Site Sampling Plan Figure 6 Bore Locations Figure 7 Hydrogeological Cross Section A-A’ Figure % Hydrogeological Cross Section B-B’ Plates Typical Photos of Site CD7-AUG-00 iv ~ ~~ List of Tables, Figures, Plates & Appendices Appendices Appendix A Licensed Survey Plan of Site Appendix B Environmental Site Assessment Background Study and Investigation Work Plan by Connolly Environmental Appendix C Environmental Site Assessment Report by Connolly Environmental Appendix D Quality Assurance / Quality Control (QNQC) Explanatory Notes Appendix E Auditor’s Assessment of Data Quality Appendix F Environmental Risk Assessment Report by Woodward-Clyde Appendix G Remedial System Design Report by Connolly Environmental Appendix H Auditor’s Site Inspection Notes Appendix I Hydrogeological Assessment Report by Lane Consulting Appendix J Correspondence From EPAV Appendix K Site Management Plan By Ove Amp CW-AUG-00 V URS SUMMARY INFORMATION ENVIRONMENTAL AUDIT (CONTAMINATED LAND) Name'and Address of Site: Queenscliff Waste Transfer Station and Municipal Depot Bellarine Highway, Queenscliff Vic 3225 Title Description: . Crown Allotments 62, 62A and 62B of Section 43, Parish of Paywit, County of Grant, depicted as Part A of on Survey Plan 98/03224, dated 51h August 1999.