TRITTON RESOURCES PTY LTD ABN 88 100 095 494 Environmental Impact Statement for the Avoca Tank Project Prepared by: R.W. CORKERY & CO. PTY. LIMITED July 2014 This page has intentionally been left blank TRITTON RESOURCES PTY LTD ABN 88 100 095 494 Environmental Impact Statement for the Avoca Tank Project Prepared for: Tritton Resources Pty Ltd Telephone: (02) 6838 1100 ABN: 88 100 095 494 Facsimile: (02) 6838 1101 Yarrandale Road Email: [email protected] HERMIDALE NSW 2831 Prepared by: R.W. Corkery & Co. Pty. Limited Geological & Environmental Consultants ABN: 31 002 033 712 Brooklyn Office: Orange Office: Brisbane Office: 1st Floor, 12 Dangar Road 62 Hill Street Suite 5, Building 3 PO Box 239 ORANGE NSW 2800 Pine Rivers Office Park BROOKLYN NSW 2083 205 Leitchs Road BRENDALE QLD 4500 Telephone: (02) 9985 8511 Telephone: (02) 6362 5411 Telephone: (07) 3205 5400 Facsimile: (02) 6361 3622 Facsimile: (02) 6361 3622 Facsimile: (02) 6361 3622 Email: [email protected] Email: [email protected] Email: [email protected] Ref No. 859/02 July 2014 R. W. CORKERY & CO. PTY. LIMITED TRITTON RESOURCES PTY LTD ENVIRONMENTAL IMPACT STATEMENT Avoca Tank Project Report No. 859/02 Document Control Document Title Environmental Impact Statement Document Number 859/02 Document Owner Revision Issue Date Originator Reviewed Approved Version 1 23/07/14 C Dickson M Bland T Cooney Version 2 Version 3 Next Review Due This Copyright is included for the protection of this document COPYRIGHT © R.W. Corkery & Co. Pty Limited 2014 and © Tritton Resources Pty Ltd 2014 All intellectual property and copyright reserved. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act, 1968, no part of this report may be reproduced, transmitted, stored in a retrieval system or adapted in any form or by any means (electronic, mechanical, photocopying, recording or otherwise) without written permission. Enquiries should be addressed to R.W. Corkery & Co. Pty Limited. R. W. CORKERY & CO. PTY. LIMITED ii ENVIRONMENTAL IMPACT STATEMENT TRITTON RESOURCES PTY LTD Report No. 859/02 Avoca Tank Project R. W. CORKERY & CO. PTY. LIMITED iii TRITTON RESOURCES PTY LTD ENVIRONMENTAL IMPACT STATEMENT Avoca Tank Project Report No. 859/02 This page has intentionally been left blank iv R. W. CORKERY & CO. PTY. LIMITED ENVIRONMENTAL IMPACT STATEMENT TRITTON RESOURCES PTY LTD Report No. 859/02 Avoca Tank Project CONTENTS Page Page EXECUTIVE SUMMARY ................................... ES-1 2.3.3.3 Load and Haul Operations ..................... 2-12 SECTION 1 INTRODUCTION ............................ 1-1 2.3.3.4 Ventilation and Emergency Egress ........ 2-12 1.1 SCOPE ........................................................ 1-3 2.3.4 Underground Stoping Operations .. 2-13 1.2 THE APPLICANT ......................................... 1-5 2.3.4.1 Mining Method ............... 2-13 2.3.4.2 Stope Design ................. 2-13 1.3 PROJECT SITE ........................................... 1-6 2.3.4.3 Stope Backfilling 1.4 BACKGROUND TO THE PROPOSAL ........ 1-6 Operations ..................... 2-13 1.4.1 Existing Mineral Authorities ............. 1-6 2.3.5 Mining Rate ................................... 2-15 1.4.2 Historic Mining Operations .............. 1-6 2.3.6 Mining Equipment ......................... 2-15 1.4.3 Current Mining Operations ............ 1-10 2.4 WASTE ROCK MANAGEMENT ................ 2-16 1.4.3.1 Introduction ................... 1-10 2.4.1 Introduction ................................... 2-16 1.4.3.2 Girilambone Copper Mine .............................. 1-11 2.4.2 Waste Rock Characteristics .......... 2-17 1.4.3.3 Tritton Copper Mine ...... 1-11 2.4.2.1 Introduction .................... 2-17 2.4.2.2 Acid Rock Drainage ....... 2-17 1.4.4 Previous Exploration Operations .. 1-14 2.4.2.3 Waste Rock 1.4.5 Mineral Resource Estimate ........... 1-15 Characterisation 1.4.6 Ongoing Exploration Operations ... 1-15 Methodology .................. 2-17 2.4.2.4 Waste Rock 1.4.7 Environmental Performance ......... 1-15 Characterisation 1.4.7.1 Introduction ................... 1-15 Results .......................... 2-19 1.4.7.2 Air Quality ..................... 1-16 1.4.7.3 Noise ............................. 1-16 2.4.3 Waste Rock Emplacement 1.4.7.4 Biodiversity .................... 1-16 Layout ........................................... 2-21 1.4.7.5 Surface Water ............... 1-16 2.4.4 Waste Rock Emplacement 1.4.7.6 Groundwater ................. 1-17 Procedure...................................... 2-22 1.5 FORMAT OF THE DOCUMENT ................ 1-17 2.4.5 Waste Rock Balance ..................... 2-23 1.6 MANAGEMENT OF INVESTIGATIONS .... 1-18 2.5 ORE MANAGEMENT AND TRANSPORTATION .................................. 2-25 SECTION 2 DESCRIPTION OF THE 2.5.1 ROM Pad Design and Layout........ 2-25 PROPOSAL .................................... 2-1 2.5.2 Load and Haul Operations ............ 2-25 2.1 INTRODUCTION ......................................... 2-3 2.6 WATER MANAGEMENT ........................... 2-26 2.1.1 Objectives ....................................... 2-3 2.6.1 Classes of Water ........................... 2-26 2.1.2 Overview of the Proposal ................ 2-3 2.6.2 Erosion and Sediment Control ...... 2-27 2.1.3 Approvals Required ........................ 2-6 2.6.3 Operational Site Water Balance .... 2-27 2.2 SITE PREPARATION .................................. 2-7 2.6.4 Water Management ....................... 2-30 2.2.1 Survey and Mark Out ...................... 2-7 2.7 TRANSPORTATION .................................. 2-30 2.2.2 Vegetation Clearing ........................ 2-8 2.7.1 Internal Project Site 2.2.3 Soil Stripping ................................... 2-8 Transportation ............................... 2-30 2.3 MINING OPERATIONS ............................... 2-9 2.7.2 External Transportation ................. 2-31 2.7.2.1 External Road Network.. 2-31 2.3.1 Layout of the Box cut ...................... 2-9 2.7.2.2 Traffic Types and 2.3.2 Construction of the Box Cut and Levels ............................ 2-33 Portal .............................................. 2-9 2.3.2.1 Construction of the Box 2.8 FACILITIES AND SERVICES .................... 2-33 Cut .................................. 2-9 2.8.1 Facilities ........................................ 2-33 2.3.2.2 Construction of the 2.8.2 Services ........................................ 2-34 Portal and 2.8.2.1 Introduction .................... 2-34 Underground 2.8.2.2 Electricity Supply ........... 2-34 Infrastructure ................. 2-10 2.8.2.3 Communications ............ 2-34 2.3.3 Underground Development ........... 2-10 2.8.2.4 Hydrocarbons ................ 2-35 2.3.3.1 Decline and Development Design ..... 2-10 2.3.3.2 Drill and Blast Operations .................... 2-12 R. W. CORKERY & CO. PTY. LIMITED v TRITTON RESOURCES PTY LTD ENVIRONMENTAL IMPACT STATEMENT Avoca Tank Project Report No. 859/02 CONTENTS Page Page 2.9 NON-PRODUCTION WASTE 3.2.1.2 Community MANAGEMENT ......................................... 2-35 Consultative Committee ....................... 3-3 2.10 PROPOSAL LIFE AND HOURS OF OPERATION ............................................. 2-35 3.2.2 Government Agency Consultation .................................... 3-4 2.10.1 Hours of Operation ....................... 2-35 3.2.2.1 Introduction ..................... 3-4 2.10.2 Proposal Life ................................. 2-37 3.2.2.2 Conceptual Project Development Plan 2.11 EMPLOYMENT, CAPITAL COST AND Meeting ........................... 3-4 ECONOMIC CONTRIBUTIONS ................ 2-37 3.2.2.3 Planning Focus 2.12 SAFETY/SECURITY MANAGEMENT ....... 2-37 Meeting ........................... 3-4 3.2.2.4 Individual Agency and 2.13 SITE REHABILITATION AND Stakeholder DECOMMISSIONING ................................ 2-38 Consultation .................... 3-5 2.13.1 Introduction ................................... 2-38 3.2.2.5 Summary of Issues 2.13.2 Rehabilitation Hierarchy ................ 2-38 Identified .......................... 3-5 2.13.3 Rehabilitation Objectives .............. 2-41 3.3 RELEVENT LEGISLATION, PLANNING 2.13.4 Strategic Rehabilitation ISSUES, POLICIES AND GUIDELINES ...... 3-6 Management ................................. 2-41 3.3.1 Introduction ..................................... 3-6 2.13.4.1 Rehabilitation Domains . 2-41 3.3.2 Legislation ....................................... 3-7 2.13.4.2 Rehabilitation 3.3.2.1 Commonwealth Completion Criteria, Legislation ....................... 3-7 Performance Indicators 3.3.2.2 NSW Legislation .............. 3-8 and Monitoring Strategy......................... 2-43 3.3.3 State Planning Policies ................. 3-11 3.3.3.1 State Environmental 2.13.5 Final Landform .............................. 2-43 Planning Policy (State 2.13.6 Final Land Use .............................. 2-44 and Regional 2.13.7 Rehabilitation Methods and Development) 2011 ....... 3-11 Procedures ................................... 2-45 3.3.3.2 State Environmental 2.13.7.1 Domain 1 – Surface Planning Policy Facilities Area and (Mining, Petroleum Infrastructure ................. 2-45 Production and 2.13.7.2 Domain 3 – Water Extractive Industries) Management 2007 .............................. 3-12 Structures...................... 2-46 3.3.3.3 State Environmental 2.13.7.3 Domain 4 – Waste Planning Policy No. 33 Rock Emplacement – Hazardous and and ROM Pad ............... 2-46 Offensive Development . 3-12 2.13.7.4 Domain 8 – 3.3.3.4