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Environmental Management of Landfill Facilities

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Environmental Management of Landfill Facilities Environment Protection Authority Environmental management of landfill facilities Solid waste disposal South Australia Environmental management of landfill facilities – solid waste disposal This guideline supersedes and replaces the Environmental management of landfill facilities (municipal solid waste and commercial and industrial waste) [EPA 2007]. Any reference to the 2007 guidelines in any statutory instrument or other publication should now be read as a reference to the Environmental management of landfill facilities – solid waste disposal (EPA 2019). For further information please contact: Information Officer Environment Protection Authority GPO Box 2607 Adelaide SA 5001 Telephone: (08) 8204 2004 Facsimile: (08) 8124 4670 Free call (country): 1800 623 445 Website: https://www.epa.sa.gov.au Email: [email protected] ISBN 978-1-921125-34-8 Issued December 2007 Updated April 2019 Disclaimer This publication is a guide only and does not necessarily provide adequate information in relation to every situation. This publication seeks to explain your possible obligations in a helpful and accessible way. In doing so, however, some detail may not be captured. It is important, therefore, that you seek information from the EPA itself regarding your possible obligations and, where appropriate, that you seek your own legal advice. © Environment Protection Authority This document may be reproduced in whole or part for the purpose of study or training, subject to the inclusion of an acknowledgment of the source and to it not being used for commercial purposes or sale. Reproduction for purposes other than those given above requires the prior written permission of the Environment Protection Authority. Contents Abbreviations ...................................................................................................................................................................... 1 1 Introduction ................................................................................................................................................................... 3 1.1 Objectives ............................................................................................................................................................ 3 1.2 Purpose ............................................................................................................................................................... 4 1.3 Scope................................................................................................................................................................... 4 1.4 How the EPA will use this guideline..................................................................................................................... 4 1.5 Regulatory and technical basis for this guideline................................................................................................. 4 1.6 Implementation .................................................................................................................................................... 5 2 Regulatory environment ............................................................................................................................................... 7 2.1 Siting .................................................................................................................................................................... 7 2.2 Environmental assessment for development ..................................................................................................... 10 2.3 Landfill classification .......................................................................................................................................... 13 3 Containment and control of emissions (including liner, leachate collection and capping) ................................ 14 3.1 Base and side liner ............................................................................................................................................ 15 3.2 Leachate collection system................................................................................................................................ 17 3.3 Capping ............................................................................................................................................................. 18 3.4 Alternatives ........................................................................................................................................................ 20 3.5 Design of containment systems ......................................................................................................................... 21 3.6 Construction quality assurance (CQA) plan....................................................................................................... 22 4 Management, monitoring and treatment of emissions ........................................................................................... 24 4.1 Landfill gas......................................................................................................................................................... 24 4.2 Leachate storage and disposal .......................................................................................................................... 27 4.3 Surface water..................................................................................................................................................... 28 4.4 Monitoring .......................................................................................................................................................... 29 5 Landfill operation ........................................................................................................................................................ 32 5.1 Amenity .............................................................................................................................................................. 32 5.2 Waste disposal and placement .......................................................................................................................... 34 5.3 Onsite resource recovery activities .................................................................................................................... 34 5.4 Covering of waste (daily and interim cover)....................................................................................................... 35 5.5 Landfill environment management plan ............................................................................................................. 37 6 Closure and post closure ........................................................................................................................................... 39 6.1 Suggested measures for closure plans ............................................................................................................. 40 6.2 Certified statement of completion ...................................................................................................................... 41 7 References ................................................................................................................................................................... 42 Appendix 1 Landfill classification ............................................................................................................................... 44 Appendix 2 Minimum requirements for compacted clay liners ............................................................................... 48 Consideration related to clay liners .............................................................................................................................. 48 Design considerations .................................................................................................................................................. 48 Material properties ........................................................................................................................................................ 49 Construction methodology ............................................................................................................................................ 49 Appendix 3 Minimum requirements for geosynthetic materials in liners .............................................................. 51 General considerations related to geosynthetic materials ............................................................................................ 51 General design considerations ..................................................................................................................................... 51 General construction considerations ............................................................................................................................ 52 General durability consideration ................................................................................................................................... 52 General minimum requirements for design .................................................................................................................. 53 Minimum requirements for geomembrane ................................................................................................................... 54 Minimum requirements for GCL ................................................................................................................................... 60 Minimum
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