Leigh Creek Energy Environmental Impact Report ISG Demonstration Plant ISG Demonstration Plant EIR Prepared by: JBS&G Australia Pty Ltd ABN 62 100 220 479 38 Dequetteville Terrace Kent Town SA 5067 Phone: 08 8431 7113 Fax: 08 8431 7115 and Leigh Creek Energy Limited ACN: 107 531 822 Level 11 19 Grenfell Street Adelaide SA 5000 Phone: 08 8132 9100 Fax: 08 8231 7574 Document Leigh Creek Energy Environmental Impact Report ISG Demonstration Plant Date 3 April 2018 Prepared by Michelle Waters, Leigh Creek Energy Limited Stephen Milne, JBS&G Australia Pty Ltd Revision History Revision Date Purpose Prepared Reviewed Authorised 0 30/08/17 Issued for LCK review / SM/AM (JBS&G) SM/AM SM signoff MW/GB (LCK) 1 31/08/17 Issued for submission to SM/AM (JBS&G) SM/MW MW DPC MW/GB (LCK) 2 26/09/17 Updated with DPC SM/AM SM/MW MW comments 3 20/12/17 Updated with additional SM MW MW feedback and drilling results 4 3/04/18 Updated following AM/SM MW MW public consultation Leigh Creek Energy acknowledge the Adnyamathanha people, the traditional owners of the land on which our operations occur and pay our respects to their Elders past and present. Leigh Creek Energy Limited ACN: 107 531 82 Page 2 of 156 ISG Demonstration Plant EIR Contents Summary .................................................................................................................................................. 8 1 Introduction ...................................................................................................................................12 1.1 Project Proponent ................................................................................................................. 12 1.2 About this Document ............................................................................................................ 12 2 Legislative Framework ...................................................................................................................14 2.1 Petroleum and Geothermal Energy Act ................................................................................ 14 2.2 Other Legislation ................................................................................................................... 16 3 Description of Activities ................................................................................................................19 3.1 Overview of ISG Process ........................................................................................................ 19 3.2 Well Design and Integrity ...................................................................................................... 24 3.3 Site Selection ......................................................................................................................... 27 3.4 Demonstration Plant Design and Layout ............................................................................... 29 3.5 Site Preparation and Earthworks .......................................................................................... 35 3.6 Construction .......................................................................................................................... 36 3.7 Commissioning ...................................................................................................................... 36 3.8 Operation .............................................................................................................................. 37 3.9 Decommissioning and Rehabilitation .................................................................................... 40 3.10 Monitoring and Data Collection ............................................................................................ 41 3.11 Other ..................................................................................................................................... 46 3.12 Integration of Learnings from Previous Projects ................................................................... 48 3.13 Future Strategies for Greenhouse Gas Management ........................................................... 49 4 Existing Environment .....................................................................................................................51 4.1 Overview................................................................................................................................ 51 4.2 Cultural Heritage ................................................................................................................... 54 4.3 Climate................................................................................................................................... 55 4.4 Bioregions, Land Systems and Soils ....................................................................................... 56 4.5 Existing Site Contamination................................................................................................... 63 4.6 Geology .................................................................................................................................. 66 4.7 Hydrogeology ........................................................................................................................ 80 4.8 Surface Water ........................................................................................................................ 94 4.9 Flora and Fauna ..................................................................................................................... 97 4.10 Air Quality .............................................................................................................................. 99 4.11 Noise ...................................................................................................................................... 99 4.12 Land Use .............................................................................................................................. 100 Leigh Creek Energy Limited ACN: 107 531 82 Page 3 of 156 ISG Demonstration Plant EIR 4.13 Socio-economic ................................................................................................................... 104 5 Environmental Impact Assessment .............................................................................................106 5.1 Cultural Heritage ................................................................................................................. 106 5.2 Groundwater ....................................................................................................................... 106 5.3 Soils ...................................................................................................................................... 114 5.4 Surface Water ...................................................................................................................... 115 5.5 Flora and Fauna ................................................................................................................... 117 5.6 Air Quality ............................................................................................................................ 118 5.7 Noise .................................................................................................................................... 122 5.8 Land Use .............................................................................................................................. 123 5.9 Public Safety and Risk .......................................................................................................... 123 5.10 Economic Impact ................................................................................................................. 125 5.11 Environmental Risk Assessment Summary ......................................................................... 126 6 Environmental Management Framework ...................................................................................136 6.1 Environmental Management System .................................................................................. 136 6.2 Emergency Response and Contingency Planning ................................................................ 137 6.3 Environmental Monitoring and Audits ................................................................................ 138 6.4 Incident Management, Recording and Corrective Actions ................................................. 138 6.5 Reporting ............................................................................................................................. 138 7 Consultation ................................................................................................................................139 7.1 Stakeholder Consultation .................................................................................................... 139 7.2 Stakeholder Feedback ......................................................................................................... 142 7.3 Online Community Portal .................................................................................................... 145 7.4 Formal Public Consultation ................................................................................................. 145 7.5 Government Agency Submissions ....................................................................................... 149 8 References ...................................................................................................................................150 9 Abbreviations and Glossary .........................................................................................................154