REHABILITATION MANAGEMENT PLAN

Transcription

1 Environmental Management System Integra Coal Operations Pty Ltd REHABILITATION MANAGEMENT PLAN Doc No: Doc Owner: Rehabilitation Management Plan Environmental Advisor Integra Coal Operations Approval: Manager Sustainability Integra Coal Operations Pty Ltd Signed: Date: Revision Issue Date Originator Reviewed Approved K Oxley

2 This page has intentionally been left blank Environmental Advisor 00 07/06/ /06/ of 150

3 Table of Contents 1. INTRODUCTION BACKGROUND SCOPE OBJECTIVES AND OUTCOMES ENVIRONMENTAL POLICY LEGAL AND OTHER REQUIREMENTS Department of Planning and Infrastructure (DPI) Industry & Investment NSW STAKEHOLDERS MANAGEMENT PLAN REQUIREMENT PRE MINING AND PROPOSED MINING ACTIVITIES REHABILITATION Rehabilitation Status at Rehabilitation Management Plan Commencement Integra Open Cut Project North Open Cut Underground Proposed Rehabilitation Status at Finish of Mining Operations Plan Integra Open Cut Project North Open Cut Underground Rehabilitation of Buildings Rehabilitation of Disturbed Land Integra Open Cut Project North Open Cut Underground Proposed Water Management Other Infrastructure Rehabilitation Trials and Research Integra Open Cut Project North Open Cut Underground Operations Final Rehabilitation Areas and Features Integra Open Cut Project (North Pit, South Pit and Western Extension) North Open Cut Underground Short term Medium Term Long term Final Remaining Features Integra Open Cut Project North Open Cut Underground Environmental Advisor 00 07/06/ /06/ of 150

4 Final Rehabilitation Planning Criteria Integra Open Cut Project North Open Cut Underground MOP Environmental and Rehabilitation Risk Identification ENVIRONMENTAL MANAGEMENT CONTROLS MONITORING REQUIREMENTS Integra Open Cut Project North Open Cut Underground COMPETENCE, TRAINING AND AWARENESS ROLES AND RESPONSIBILITIES REVIEW Figures Figure 2.1 Integra Open Cut Project... 6 Figure 6.1 Mining Authorities Tables Table 6.1 Statement of Commitments Table 6.2 Project Approved Management Plans Table 6.3 Mineral Authorities Table 6.4 Approved Mining Operations Plans (MOP) Table 9.1 Pre Mining and Proposed Mining Activities References Table 10.1 Rehabilitation References Table 10.2 Typical Tree Species to be used in Rehabilitation Table 10.3 Typical Tree Species to be used in Rehabilitation Table 10.4 Rehabilitation Environmental Management Strategies References Table 11.1 Environmental Management Control References Table 12.1 Environmental Monitoring References Appendices Appendix 1 Project Approval (Appendix 9) Rehabilitation Figure Appendix 2 Open Cut Project Rehabilitation Maps Appendix 3 Underground Project Rehabilitation Maps Appendix 4 Draft Rehabilitation & Decommission Strategy & Monitoring Methodology & Determination of Rehabilitation Criteria Appendix 5 CD For Management Plans Environmental Advisor 00 07/06/ /06/ of 150

5 1. Introduction This Rehabilitation Management Plan (RMP) forms part of a series of Environmental Management Plans for the Integra Mine Complex. The plans address environmental issues requiring management as determined through those prescribed by relevant authorities and internal risk management processes. This Rehabilitation Management Plan outlines the actions required and personnel responsible in order for Integra Coal Operations Pty Ltd to effectively manage rehabilitation as well as through the implementation of audits and reviews, establish of a process for continual improvement of rehabilitation performance. 2. Background Integra Coal Operations Pty Ltd was granted Project Approval under Section75J of the Environmental Planning and Assessment Act 1979 by the Minister for Planning on 26 November 2010 for Project 08_0101 Integra Underground Project and Project 08_0102 Integra Open Cut Project (Integra Mine Complex). This approval consolidates the following pre-existing approvals: Glennies Creek Colliery (105/90) Camberwell Coal Project (86/2889) Glennies Creek Colliery Surface Facilities (06_0057) Glennies Creek Underground Coal Project (06_0213) Glennies Creek Open Cut Coal Project (06_0073) Project Approval Conditions 2 and 3 require both the Open Cut and the Underground operations be carried out in general accordance with previous and current Environmental Assessments. The Integra Open Cut Project (Figure 2.1) includes: the Integra Open Cut (formerly the Camberwell Coal Mine which incorporates the former North Pit and South Pit); Extended South Pit. The approved extension (named Western Extension hereafter) extends to the north of the area identified in red on (Figure 2.1), incorporates the Dulwich property and lands to the south of the main northern railway line. However, as mining would not be able to progress into that area unless Integra is able to acquire Dulwich, no further consideration of that area is deemed relevant for this Plan; and the North Open Cut (formerly the Glennies Creek Open Cut (Figure 2.1). The Integra Underground Project (Figure 2.1) was formerly known as the Glennies Creek Underground Coal Mine. Other infrastructure includes the Coal Handling and Preparation Plant (CHPP), rail loadout facility, tailings storage facilities and administration offices (Figure 2.1). The Rixs Creek loading facility, although solely owned, used and to be rehabilitated by the operators of Rixs Creek Mine, is included in this figure as it is located within CL357. Environmental Advisor 00 07/06/ /06/ of 150

6 Rehabilitation Management Plan Figure 2.1 (A4 Colour) Document Owner Environmental Advisor Integra Open Cut Project Issue Number 00 Date 07/06/2011 Next Review Date 07/06/2013 Page 6 of 150

7 3. Scope The purpose of this RMP is to consolidate, list and reference the relevant approved documents to demonstrate progressive and effective rehabilitation for the Integra Mine Complex. It has been developed to: facilitate the management of rehabilitation issues; ensure compliance with regulatory requirements; improve environmental performance; and meet stakeholder and community expectations of Integral Coal Operations Pty Ltd. 4. Objectives and Outcomes The rehabilitation objectives for the Integra Mine Complex include: rehabilitated areas are safe, stable, non-polluting and sustainable; restore ecosystem function, including maintaining or establishing self sustaining eco-systems comprised of local native plant species and a landform consistent with the surrounding environment; rehabilitated areas are integrated with grazing and pasture land areas that lie with the Integra leases but will not be disturbed by future mining activities; downstream water quality is preserved. Creek diversions are hydraulically and geomorphologically stable with diverse habitats and ecology unless the owner agrees otherwise; built features are repaired to pre-mining conditions or equivalent unless the owner agrees otherwise or the damage is fully restored, repaired or compensated; rehabilitation is progressive throughout the life of the mine and is commenced in each area as soon as practicable after it is no longer required for operational purposes; and minimise the adverse socio-economic effects associated with mine closure. The outcomes are: the end land use is safe, stable, non-polluting and sustainable; the rehabilitated land is self sustaining or maintenance requirements are consistent with the agreed post mining land use(s); achievement of an acceptable post disturbance land use capability/suitability; downstream water quality is preserved; the final void is left as small as practicable to minimize the capture of water in the void; the final void is left safe in terms of access by humans, livestock and wildlife; and remaining built features affected by subsidence are repaired or compensation has been made. Environmental Advisor 00 07/06/ /06/ of 150

8 5. Environmental Policy Integra Coal Operations Pty Ltd has and is committed to an Environmental Policy which states: At Integra Coal Operations we are committed to the development of a positive culture where we are responsible and accountable for our actions at all levels of our business. We are committed to operating in an environmentally responsible and safe manner through the application of Operating Philosophy and Environmental Management System for; Complying with applicable environmental laws, regulations and statutory obligations; Communicating regularly with stakeholders; and Making environmental considerations an integral part of our activities. Copies of the policy are displayed in prominent positions across the site and further communicated through inductions and training. Copies of the policy are also included in public documentation such as the Annual Environmental Management Report (AEMR). 6. Legal and Other Requirements 6.1. Department of Planning and Infrastructure (DPI) The Integra Underground and the Integra Open Cut operate under Project Approval 08_0101 and 80_0102 respectively as the Integra Mine Complex. The relevant rehabilitation terms for these approvals includes: Schedule 2 Condition 6 The Proponent may carry out open cut mining operations on site until 31 December Condition 7 Schedule 3 Condition 56 The Proponent may carry out underground mining operations on site until 31 December Note: Under this approval, the Proponent is required to rehabilitate the site and carry out additional undertakings to the satisfaction of both the Director-General and the Director- General of I&I NSW. Consequently, this approval will continue to apply in all respects other than the right to conduct mining operations until the rehabilitation of the site and these additional undertakings have been carried out satisfactorily. The Proponent shall rehabilitate the site to the satisfaction of the Director-General of I&I NSW. This rehabilitation must be generally consistent with both the rehabilitation strategy described in the open cut and underground project EAs and depicted conceptually in the figure in Appendix 9 (see Appendix 1 of this Plan) and the objectives as follows: Environmental Advisor 00 07/06/ /06/ of 150

9 Area/Domain Site (as a whole) Surface infrastructure Other land affected by the projects Xstrata Mt Owen Bettys Creek Diversions Underground Project Creek Diversions Built features Community Rehabilitation Objectives Safe, stable & non-polluting To be decommissioned and removed, unless the Director-General agrees otherwise Restore ecosystem function, including maintaining or establishing self-sustaining eco-systems comprised of: Local native plant species (unless the Director- General agrees otherwise); and A landform consistent with the surrounding environment Rehabilitate to the same or better geotechnical, geomorphic and ecological condition as prior to mining, unless the owner agrees otherwise Hydraulically and geomorphologically stable, with diverse habitats and ecology Repair to pre-mining condition or equivalent unless: The owner agrees otherwise; or The damage is fully restored, repaired or compensated for under the Mine Subsidence Compensation Act 1961 Minimise the adverse socio-economic effects associated with mine closure Condition 57 Condition 58 The Proponent shall carry out rehabilitation of the site progressively, that is, as soon as reasonably practicable following the disturbance. The Proponent shall prepare and implement a Rehabilitation Management Plan for the Integra mine complex to the satisfaction of the Director-General of I&I NSW. This plan must: a) Be prepared in consultation with the Department, DECCW, NOW, Council and the CCC: b) Be prepared in accordance with any relevant I&I NSW guideline; c) Build, to the maximum extent practicable, on the other management plans required under this approval; and d) Be submitted to the Director-General of I&I NSW for approval by the end of June Note: DOP refers to the former Department of Planning now known as the Department of Planning and Infrastructure (DPI). I&I NSW refers to the former Department of Industry and Investment now known as the Department of Trade and Investment, Regional Infrastructure and Services (DTIRIS). The Statement of Commitments Appendix 10 of the Project Approval includes the mitigation measures and commitments stated in Table 6.1 below. Environmental Advisor 00 07/06/ /06/ of 150

10 Table 6.1 Statement of Commitments Item Mitigation Measure and Commitment Implementation L1 L2 L3 L4 Suitable species of vegetation will be planted and established to achieve the nominated post-mine land uses. The rehabilitation plan will clarify the projects rehabilitation goals and outcomes and will confirm the monitoring and management proposals The majority of the post-mine landform will be revegetated with a combination of native and improved pasture species with scattered tree lots and tree corridors linking the surrounding rehabilitated areas, proposed tree planting corridors and surrounding existing native vegetation. The final landform will be stable and not subject to slumping or excessive erosion which would result in the agreed post mining landform not being achieved The outside facing slopes of the post-mine landform will generally be a maximum of 10 o where they are above the natural land surface. The internal facing slopes and those below natural surface reporting to the final void (including the low wall areas) will generally be a maximum of 18 o Continuous during operations Progressively during operations Prior to completion of project activities and lease relinquishment Progressively during operations The relevant Management Plans relating to rehabilitation approved under Project Approval are included in Table 6.2 Project Approval Condition No. Table 6.2 Project Approved Management Plans Management Plan Approval Authority Approval Date Expiry Date 40 Water DPI pending - 44 Biodiversity DPI pending - 58 Rehabilitation (this Plan) DTRIS pending - Digital copies of these Management Plans are provided in (Appendix 4). Environmental Advisor 00 07/06/ /06/ of 150

11 6.2. Industry & Investment NSW The following Leases were issued by the DTIRIS (Table 6.3 and Figure 6.1). Table 6.3 Leases Leases Grant Date Expiry Date Holder CL Mar Mar 2011 Camberwell Coal Pty Limited ML Jan Jan 2032 Integra Coal Operations Pty Limited ML Jan Jan 2032 Camberwell Coal Pty Limited ML Jan Jan 2032 Navidale Pty Limited, Toyota Tsusho Mining (Australia) Pty Ltd and Toyota Tsusho Coal (Australia) Pty Ltd ML Jan Jan 2032 Integra Coal Operations Pty Limited CL382 12/11/ Nov 2012 VALE Australia (GC) Pty Ltd, JFE Steel Australia (GC Pty Ltd, JS Glennies Creek Pty Ltd, NS Glennies Creek Pty Limited, POS-GC Pty Ltd and Maitland Main Collieries Pty Limited ML Apr March 2011 VALE Australia (GC) Pty Ltd, JFE Steel Australia (GC Pty Ltd, JS Glennies Creek Pty Ltd, NS Glennies Creek Pty Limited, POS-GC Pty Ltd and Maitland Main Collieries Pty Limited ML June Mar 2011 VALE Australia (GC) Pty Ltd, JFE Steel Australia (GC Pty Ltd, JS Glennies Creek Pty Ltd, NS Glennies Creek Pty Limited, POS-GC Pty Ltd and Maitland Main Collieries Pty Limited ML Jan Mar 2011 VALE Australia (GC) Pty Ltd, JFE Steel Australia (GC Pty Ltd, JS Glennies Creek Pty Ltd, NS Glennies Creek Pty Limited, POS-GC Pty Ltd and Maitland Main Collieries Pty Limited ML 1525 (MPL Nov Nov 2023 Maitland Main Collieries Pty Ltd ML Mar Mar 2030 VALE Australia (GC) Pty Ltd, JFE Steel Australia (GC Pty Ltd, JS Glennies Creek Pty Ltd, NS Glennies Creek Pty Limited, POS-GC Pty Ltd and Maitland Main Collieries Pty Limited The following Plans (Table 6.4) relevant to rehabilitation have been approved under the relevant Leases. Environmental Advisor 00 07/06/ /06/ of 150

12 Rehabilitation Management Plan Figure 6.1 Mining Authorities (A4 Colour Portrait) Document Owner Environmental Advisor Issue Number 00 Date 07/06/2011 Next Review Date 07/06/2013 Page 12 of 150

13 Mineral Authority Plan Table 6.4 Approved Plans Approval Date Expiry Date CL357 Integra Open Cut Project MOP 1 23/12/10 6/12/12 CL357 North Open Cut MOP 1 Amended 29/3/12 CL382 Underground MOP 1 2/2009 3/2015 CL382 CL Mining Operations Plan Subsidence Management Plan Longwall Panels 10 to 17 Subset of Management Plans include: Telstra Assets Electricity Transmission Lines Forest Road Bettys Creek Surface Drainage Land Management Farm Building Management Plan Farm Fences Farm Dams Ravensworth East Tailings Pit Mt Own Eastern Rail Pit Archaeology Subsidence Management Plan Longwall Panels 1/2007 Pending Digital copies of these Plans are provided in (Appendix 5). These Plans set out the current rehabilitation requirements for the Integra Mine Complex. An extension for the North Open Cut MOP is to be requested to align it with the Integra Open Cut Project MOP to expire on 06/12/2012. As a consequence, a new MOP covering both the Integra Open Cut Project and North Open Cut collectively (Integra Open Cut) will be submitted to DTIRIS for approval and a subsequent amendment will be made to this RMP. It is envisaged that the rehabilitation strategy, completion criteria and indicators would be refined to provide a consistent rehabilitation approach to the entire site. Environmental Advisor 00 07/06/ /06/ of 150

14 7. Stakeholders Regular consultation has been held and will continue to be held with the relevant Government, community and surrounding stakeholders in regard to all aspects of both the Open Cut and Underground operations. In addition and in accordance with Schedule 5 Condition 5, a Community Consultative Committee has been formed. Relevant stakeholders include: DTIRIS; DPI; Office of Environment and Heritage (OEH formerly DECCW); NSW Office of Water (NOW); Singleton Shire Council (SSC); Local Indigenous Groups; Community Consultative Committee; and Local Community 8. Management Plan Requirement This section, which has been prepared in accordance with DTIRIS Guidelines to the Mining, Rehabilitation and Environmental Management Process, references the relevant Plans for rehabilitation purposes. Section 9 provides information to the relevant Plan as a reference to the descriptions of the pre mining environment and proposed mining activities for the Integra Open Cut Project, North Open Cut and Underground operations. Section 10 provides more details on proposed rehabilitation activities, final rehabilitation and environmental and rehabilitation risk identification collectively over the site and is also referenced to the relevant Management Plan. Section 11 provides information to the relevant Plan as a reference to Environmental Management Controls and Monitoring. Rehabilitation monitoring is discussed in detail. Environmental Advisor 00 07/06/ /06/ of 150

15 9. Pre Mining and Proposed Mining Activities Pre Mining and proposed mining activities as approved are described in the following Sections of the relevant Plans (Table 9.1). Table 9.1 Pre Mining and Proposed Mining Activities References Content Integra Open Cut Project MOP Section North Open Cut MOP Section Undergroun d MOP Section Subsidence Management Plan Section History of Operations Proposed & Future Operations Consents, Leases and Licences Mine Contacts Mine Geology Land ownership Consultation Exploration Land Preparation Construction Mining , , 2.2 Mineral processing Mineral Waste 3.8, 5.4, Ore & Product Stockpiles 3.9, 3.6, Water Management Hazardous Material Other Infrastructure Rehabilitation Rehabilitation activities as approved are described in the relevant sections of the following Plans (Table 10.1). Following this table a brief description is also provided of the site collectively. Environmental Advisor 00 07/06/ /06/ of 150

16 Content Rehabilitation Status at Rehabilitation Management Plan Commencement Proposed Rehabilitation Status for this RMP Table 10.1 Rehabilitation References Integra Open Cut Project MOP Section North Open Cut MOP Section Underground MOP Section Rehabilitation of Buildings Proposed Water Management Other Infrastructure Rehabilitation Trials and Research Final Rehabilitation Areas and Features Final Remaining Features Final Rehabilitation Planning Criteria Environmental and Rehabilitation Risk Identification Rehabilitation Status at Rehabilitation Management Plan Commencement Integra Open Cut Project Rehabilitation at the Integra Open Cut has been divided into the following Domains (Appendix 2 Map 1). Rehabilitation status is described in the current Open Cut Project MOP. Domain 1 includes the CHPP, Rail Loader, Rail Loop, Workshop, Administration Area, Access and Haul Roads, Sewerage Treatment Plant, Hardstand and Laydown Areas and some management infrastructure. It encompasses an area of 176.1ha. 124ha of this area has been previously disturbed with 35.9ha rehabilitated. Domain 2 includes Tailings Dam 1, 2 and 3 and encompasses an area of 176.1ha. Of this 124ha has been disturbed with a total 35.9ha being rehabilitated. Domain 3 includes successfully rehabilitated North Pit waste emplacement areas, shaped overburden emplacement areas, unshaped overburden emplacement areas, coarse reject mixed within overburden (excluding those associated with the final void). It encompasses an area of 501.2ha. Of this 215.9ha is disturbed with 254.4ha being rehabilitated. Environmental Advisor 00 07/06/ /06/ of 150

17 Domain 4 includes the South Pit and the Western Extension (Extended South Pit) mining areas. It encompasses an area of 143.1ha. As this is the active mining area rehabilitation had not commenced at the time of approval for the MOP North Open Cut Rehabilitated areas within the Mine Site are currently limited to the northern batters of the former North Pit waste rock emplacement. At the commencement of the North Open Cut MOP a total area of 97ha was rehabilitated (Appendix 2 Map 1) Underground The opportunity for the rehabilitation of areas of disturbance until the commencement of the Underground MOP has been limited. Rehabilitation undertaken includes the seeding of batters and tree plantings within the ML1551 area and the rehabilitation of batters within the clean water diversion associated with Possum Skin Dam (Appendix 3 Map 1a) Proposed Rehabilitation Status at Finish of Mining Operations Plan Integra Open Cut Project As Domain 1 and 2 are required to be retained for future and ongoing operations on the site no rehabilitation is planned for the term of this current RMP. In Domain 3 a total of 277.8ha will be progressively rehabilitated in accordance with the required criteria listed in the MOP. In Domain 4 it is proposed to backfill the South Pit with waste rock from the Western Extension (Extended South Pit). The rate of backfilling is dependent on mining rates and it is not expected to have the South Pit completely backfilled by within this current Plan period (Appendix 2 Map 2) North Open Cut The North Open Cut will be progressively rehabilitated to a total of 8.5ha during the term of the Plan (Appendix 2 Map 2) Underground Rehabilitation to be carried out during the term of this RMP includes the decommissioning of gas drainage borehole sites and access routes (where required). The necessity for rehabilitation activities in areas affected by subsidence will be assessed on a panel by panel basis, with the nature of works required undertaken in consultation with relevant land holders, Government authorities and specialist consultants employed by Integra. It is anticipated that all other areas of surface disturbance will remain active until the cessation of colliery activities; with their rehabilitation forming part of the post mine closure activities (Appendix 3 Map 2a) Rehabilitation of Buildings Rehabilitation of buildings was limited to the removal of a bathhouse, a male/female ablution block, 2 offices, a garage and 2 portable buildings. These buildings were replaced by a new office complex. Environmental Advisor 00 07/06/ /06/ of 150

18 10.4. Rehabilitation of Disturbed Land Integra Open Cut Project Rehabilitation including earthworks, drainage and revegetation is currently being undertaken progressively in the area of the existing South Pit and within the former North Pit. Rehabilitation planning and management will attempt to maximize opportunities for diverse post-mining landscapes and land uses. In addition, the landform within the Western Extension (Extended South Pit) has been integrated with that of the existing North and South Pits. This will be undertaken in accordance with the Draft Rehabilitation and Decommission Strategy and Monitoring Methodology and Determination of Rehabilitation Criteria (Appendix 4) North Open Cut The area of land within the North Open Cut area that was disturbed during the term of the North Open MOP was approximately 192ha or approximately 90% of all areas to be disturbed. However of this approximately 117.6ha comprises previously disturbed land. Progressive rehabilitation has been undertaken and substantial revegetation will be undertaken immediately an area is no longer required for-mining related purposes and will involve shaping of the final landform, construction of surface water management structures, spreading of soil and revegetation Underground The area to be rehabilitated within ML 1551 during the term of the Underground MOP consists of approximately 4.5ha of emplaced spoil materials located along the South-eastern lease boundary. All rehabilitation activities associated with gas drainage boreholes would be addressed as part of the Integra Coal Underground Generic Gaswell Rehabilitation Plan. As such rehabilitation of gas drainage boreholes sites and access tracks to those sites will be undertaken progressively once the quality/quantity of the vented gas falls below pre-determined levels and will involve the following activities: Removal of extraction equipment; Borehole sealing in accordance with DTIRIS Borehole Sealing Requirements on Land EDG01; Removal of compound fence; Removal of any concrete slabs and hardstand materials and re-establishment of predisturbance landform; Excavation of consolidated materials in the drill sump/sediment dam and their removal to the Integra Coal Underground Portal Area for disposal; Replacement of formerly stockpile spoil within the drill sump/sediment dam; Ripping the compound area and any other compacted surfaces parallel to contour; Replacement of topsoil to the compound area and drill sump; Scarifying topsoiled surfaces and the former soil stockpile area; Install of drainage controls if required; and Application of seed and fertilizer to areas of disturbance using the Integra Coal nominated seed mix or as requested by landowner. Environmental Advisor 00 07/06/ /06/ of 150

19 Drill Hole Site Access Removal of hardstand materials (if installed and not to be retained at the request of the landowner); Access road surface scarification; and Application of a seed and fertilizer as requested by the landowner Proposed Water Management Proposed water management for the Integra Mine Complex is described in the Water Management Plan which is yet to be approved. In summary, the following strategies have been or are to be implemented: Integra Open Cut Project and North Open Cut The clean water system includes four large storages (C1, C2, C3 and C4) and a number of smaller storages. The Portal Sump is a small remaining void within the former Integra (Camberwell) North Pit which is now partially filled with overburden. The Portal Sump is the lowest point in the process water management circuit and is located adjacent to the existing underground mine portal. Water is regularly pumped from the Portal Sump to provide water for the coal handling and preparation plant (CHPP) and to ensure that sufficient storage volume is available to accommodate major rainfall events without inundation of the underground mine portal. Water from the Portal Sump may be pumped to D1, the CHPP or to Possum Skin Dam. Possum Skin Dam is a large turkey s nest storage which is used to store excess water in the process water system for disposal by evaporation or for use in the CHPP if required. This storage has a capacity of about 1 560ML at spill level, and a capacity of about ML at the current maximum operating level of 89.0mRL. With development of the North Open Cut, the catchment area draining to Possum Skin Dam will be increased. To accommodate stormwater runoff from the additional catchment area, the maximum operating level of Possum Skin Dam will be reduced to 87.5mRL, reducing the available operational storage to 710 ML. D1 is the central repository of process water and is used to supply the CHPP and water requirements for dust suppression. Any water accumulating in the active South Pit is pumped to D1. Development of the North Open Cut will include construction of three sediment dams at the eastern end of the pit to collect disturbed area surface runoff. Several sediment control dams will be constructed to the west of the South Pit to collect sediment laden runoff from stripped areas and topsoil stockpiles. These dams are part of the sediment and erosion control program for the site. Numerous small to moderate sized farm dams are located within the Project Area. Farm dams are constructed with earthen walls along minor drainage lines. Farm dams collect surface runoff and overflow when inflows exceed their available storage capacity. Farm dams operate independently and are not part of the mine water management system. Environmental Advisor 00 07/06/ /06/ of 150

20 Underground Four mine process water dams, dirty water dams or sediment dams are located within the Underground Mine Area. Two cascading process water dams are located near the underground office and materials storage area, a third sediment basin is located within the Vent Shaft compound, which overlies the Main Headings to the north of Glennies Creek near the western end of Longwall 6. The fourth dam is located at the end of the Possum Skin Dam clean water diversion and its main function is to reduce the sediment concentration prior to releasing clean water offsite. Forty five farm dams are located within the area overlying Longwalls 6 to 17, 20mm subsidence area, with most dams constructed with earthen walls in Schedule 1 gullies (DIPNR, 2005), and being of small to moderate size. Billabongs, with or without earth fill bunds in the channel that temporarily store runoff for up to a few weeks after rain, are present along Bettys Creek. Further detail can be located within the Water Management Plan Other Infrastructure Rehabilitation for other infrastructure will mainly occur within North Open Cut area. It will include the removal, cross ripping and seeding (and if required drainage control) of site roads and hardstand areas that are no longer required. This may include ripping and reducing the width of the various haul roads and rehabilitating those sections of the haul roads also no longer required. No short term work is planned in the Integra Open Cut or Underground Rehabilitation Trials and Research Integra Open Cut Project Rehabilitation will be constantly monitored and researched in the Integra Open Cut Project according to the Draft Rehabilitation and Decommission Strategy and Monitoring Methodology and Determination of Rehabilitation Criteria. The implementation of continual improvement will be made as more research data is available North Open Cut Rehabilitation trials to be conducted for the North Open Cut will be confined to the ongoing assessment and maintenance of an existing Hybrid Eucalypt Tree Trial which began in November The existing trial covers an approximate 500m 2 area within the ML 1551 lease area at the RL140. The aim of this trial is to successfully grow hybrid Eucalypt tree species within spoil materials displaying a moderate to highly alkaline ph, relatively low salinity, poor water retention properties, and an imbalance in cation exchange capacity dominated by magnesium and aluminum. The overall objective is to gather data to determine the long term prospect of site remediation and tree growth within poorly formed alkaline soils within the ML 1551 lease area. Environmental Advisor 00 07/06/ /06/ of 150

21 Underground Operations No research trials are presently planned for the Underground Operations Final Rehabilitation Areas and Features Integra Open Cut Project (North Pit, South Pit and Western Extension) The final landform will consist of a maximum elevation of approximately 150 AHD, outer slopes generally at a maximum of 10 0 and innerslopes (excluding the highwall) at maximum slope of 18 o.. Subject to the geotechnical stability, the highwall will exhibit a slope of approximately 70 o.. A vegetation cover of native and improved pasture species, with scattered tree lots and tree corridors will link adjacent rehabilitated and existing native vegetation. Surface water runoff will be directed into existing water ways North Open Cut The rehabilitation of the final landform features beyond the term of the North Open Cut MOP would represent an extension of the rehabilitation procedures and philosophy adopted on site. Longer term objectives i.e. those to be achieved prior to lease relinquishment include the following: Provision of a low maintenance, geotechnically stable and safe landform which blends with surrounding landforms and provides land suitable for the final native conservation land use. A final landform which blends with the surrounding topography such that the visual impact of the post-mining landform is minimized. Re-establishment of approximately 213ha of land suitable for nature conservation over the areas disturbed by the mine. Management measures in place for the biodiversity offset areas: o to ensure the long term enhancement of their biodiversity value for native species; and o to increase the area of high quality, native vegetation and provide biodiversity linkages with other rehabilitated and protected areas associated with the Mt. Owen, Glendell, Ravensworth East and Ashton mines to ensure there is a comprehensive strategic framework for the restoration and enhancement of the landscape over time Underground The rehabilitation of the final landform features will under current planning, be completed no earlier than 2025 and will integrate with the final landform adjoining rehabilitated areas of the Integra Open Cut Project, North Open Cut and surrounding natural landforms. Objectives for final landform landuse after rehabilitation are described in short, medium and long term. Environmental Advisor 00 07/06/ /06/ of 150

22 Short term Progressive rehabilitation of Gas Drainage Borehole sites; Progressive stabilization of all earthworks, drainage lines and other disturbed areas that are no longer required for mining related activities; Reduction in the visibility of Integra Coal Underground activities and infrastructure from adjacent properties and the local road network through landscaping, including screen plantings; and Ongoing maintenance of rehabilitated areas Medium Term Rehabilitation of approximately 30ha following the decommissioning of Possum Skin Dam which as an expected life of eight years from the start of construction ( ); and Removal of the Possum Skin dam wall and reshaping of the land surface to its former configuration followed by the application of approximately 30,000m3 of stockpiled soil to approximate depth of 100mm. Natural regeneration of shrubs and tree species from the seed bank within the stockpiled soils will be supplemented by broadcast seeding of pasture grass species Long term Removal of surface infrastructure established for mining operations at the cessation of mining activities, or as operational requirements permit within CL 382 and MLs 1437, 1518, 1525, 1551 and MPL 343. Infrastructure includes temporary structures/facilities, such as portable offices, bathhouses, conveyors hardstand storage areas, water transfer infrastructure, access roads and ventilation shaft structures; The areas to be reshaped where necessary and revegetated with appropriate drainage controls as per the methods outlined in the MOP; and The construction and maintenance of a final water filled void within the central portion of ML s 1437 and 1518 and maintenance of the existing water storage dams used for process water and clean water storage Final Remaining Features Integra Open Cut Project The final landform will conceptually exhibit the following (Appendix 2 Map 3): A maximum elevation of approximately 150 AHD; Outer facing slopes generally at a maximum of 10 0 where they are above natural land surface; Internal facing slopes (excluding the highwall) and those below the natural surface reporting to the final void within the Western Extension (i.e. the low all areas) exhibiting a maximum slope of 18 o; Subject to being assessed to be long term geotechnically stable, the final highwall will exhibit a slope of approximately 70 o; Environmental Advisor 00 07/06/ /06/ of 150

23 A vegetation cover comprising a combination of native and improved pasture species, with scattered tree lots and tree corridors linking adjacent rehabilitated areas and surrounding existing native vegetation; and A series of banks and drains to capture all surface water runoff above the level of natural surface and direct it into existing waterways and drainage lines. All surface water runoff below the level of the natural land surface will report to the final void. The post mining rural land capability classification will comprise mixtures of Classes IV, V, and VI. The final land uses will broadly fall into the following two categories: Land used for conservation through the establishment of vegetation communities on disturbed areas which emulate those on reference sites and through the creation of the linkages between existing and rehabilitated native vegetation; and Grazing and pasture land. The final void will cover approximately 143.1ha, with a maximum depth of approximately 200m below natural surface. There are two conceptual options regarding final use of the void: Partial backfilling using overburden or tailings and coarse rejects from mining operations. Integra recognizes that any planned use of the void for reject or tailings disposal would be subject to further approval by I&I NSW under the Coal Mine Health and Safety Act 2002; and As a water storage area, e.g. for the Integra Underground, the life of which extends beyond that of Integra s Open Cut operations. Based on investigations undertaken as part of the EA for the Integra Open Cut Project, it would be envisaged that the water in the final void would reach an equilibrium level of 50m AHD. The stability of the low wall will be achieved through: Battering the low wall back from the angle of repose to ensure long term geotechnical stability (between 14 o and 18 o to an approximate depth of 200m); Construction of drainage control structures to divert as much of the catchment as possible away from the final void; Limiting the length of the individual slopes down the reprofiled low wall through the use of contour banks and graded drains, and the establishment of vegetation to control erosion; Battering of the low wall against the bottom of the highwall, where possible, to enhance highwall stability; and Benching spoil material in some areas to achieve geotechnical stability and minimise erosion. The final slopes of the highwall will be assessed by a suitably qualified geotechnical engineer and the recommendations implemented to ensure the highwall is left in a condition where the risk of slope failure is assessed as acceptable. Environmental Advisor 00 07/06/ /06/ of 150

24 North Open Cut The major features of the final landform include the following (Appendix 2 Map 3): An elevated north-northwest orientated ridgeline gently undulating upper surface with elevations of between approximately 140m AHD and 145m ADH; A sloped area either side of the ridgeline with maximum slopes of approximately 1:5 (V:H); A gently sloped, northwest draining valley in the central section of the in-pit Waste Rock Emplacement. The upper slopes of the valley will have maximum slopes of approximately 1:5 (V:H), while the lower slopes and valley floor will have slopes of approximately 1:25 (V:H); and A flat to gently undulating landform in the western section of the Mine Site. Integra may potentially use the open cut void for water storage or for reject disposal. If either are used, the final rehabilitation/final landform may vary. This issue will be addressed in a subsequent RMP. Sediment Dams 1, 2 and 3 may provide valuable habitat for threatened species following completion of mining-related activities. As a result, a decision as to whether these dams will be retained, modified or removed following completion of mining operations will be made during preparation of the Mine Closure Plan. The final landform will also incorporate contour/graded banks installed progressively as part of the water management and rehabilitation programs. The spacing and ultimate dimensions of these structures is presented in the Water Management Plan. The final landuse will be nature conservation Underground The final features remaining within the colliery holding post closure will consist of the original Oak Park School buildings and some water storage structures. All additional infrastructure used for mining purposes will be totally removed, with the surrounding landforms rehabilitated as described (Appendix 3 Map 3a): The old school and school masters residence will remain, with the immediate surrounding areas landscaped and returned to a condition which supports future use and/or habitation; and The water filled final void/dam located within the bench and portal sump areas will have an approximate area of 5.8ha and a volume of approximately 400,000m 3. This dam will collect run-off from the surrounding rehabilitated landforms which will consist of slopes of 10 to 18 o immediately adjacent the dam, grading to less than 10 o immediately adjacent the dam, grading to less than 10 o upslope. The existing mine process water dams upslope and to the west of the final void dam will also be retained for water storage/stock watering purposes, whilst the clean water dam adjacent Middle Falbrook Road will also be maintained to collect run-off from upslope areas formerly associated with the mine clean water catchment flow path. The existing dirty water retention dam located on MPL 343 will also likely be retained for water storage/stock watering purposes. Environmental Advisor 00 07/06/ /06/ of 150

25 Final Rehabilitation Planning Criteria As three individual Mining Operations Plans are still current for mining activities, the following sets out the criteria of each of the designated areas Integra Open Cut Project The landform within the Western Extension area has been integrated with that of the existing North and South Pits. Rehabilitation will be in accordance with the MOP and any further requirements or commitments set out in Appendix 4 Draft Rehabilitation and Decommissioning Strategy (GSSE, 2008) of the Environmental Assessment, and Monitoring Methodology and Determination of Rehabilitation Criteria (DnA and CBE, 2009). The post mining rural land capability classification will predominantly comprise Classes IV (land suitable for grazing and occasional cultivation if minor soil conservation practices are undertaken), V (land which is also suitable for grazing and occasional cultivation if intensive soil conservation practices are undertaken) and VI (land suitable for grazing only. The final landform will be used for two principle purposes: Conservation through the development of areas of native vegetation and linkage of existing native vegetation with that on rehabilitated areas; and Grazing through the provision of pasture land. The majority of overburden emplacements will be reshaped to a slope of 10 o or less using bulldozers. Should slopes exceed 10 o additional drainage and revegetation works will be undertaken to ensure sediment and erosion control and groundcover establishment is achieved. Waste rock emplacements within the existing South Pit will be rehabilitated during the term of the Integra Open Cut MOP. The North Pit has been rehabilitated in accordance with a previous MOP, however is subject to additional works to achieve the long term rehabilitation strategy identified in the EA. All sediment containment dams associated with rehabilitated landforms will be retained and assessed for structural integrity on a regular basis throughout the life of the operation and until the mining leases are relinquished. Water management structures associated with rehabilitated areas will be constructed as required and in accordance with the design specifications identified in the Water Management Plan. Revegetation of the rehabilitated areas will be conducted in accordance with the MOP and the commitments in the EA. Tables 10.2 and 10.3 list the species that will be typically used to revegetate rehabilitated areas. In addition, endemic native grasses such as red-leg grass and common couch will be used depending on seasonal suitability. Other native grasses that may also be incorporated into the seed mix, include wallaby grass, kangaroo grass, Queensland blue grass, native millet and windmill grass. To ensure stability and minimal erosion losses, non-persistent cover crop species such as wheat or millet would be seeded in the event of long-term top soil stockpiling. Environmental Advisor 00 07/06/ /06/ of 150

26 Table 10.2 Typical Grass Species to be used in Rehabilitation Vegetation Type Tussock Climber White Clover Red Clover Subterranean Clover Source: GSSE (2008) Common Name Green Panic Wimmera rye grass Kangaroo Valley rye (Aurora) Lucerne Purple Pigeon Grass Fescue Cocksfoot Premier Digitaria Namoi Vetch Haifa White Renegade Red Clare Woodgeneop Seaton Park Table 10.3 Typical Tree Species to be used in Rehabilitation Direct Seeding Tube Stock Acacia amblygona1 Angophora floribunda 1 Acacia implexia1 Corymbia maculata Acacia decora1 Eucalyptus tereticornis 1 Acacia decurrens1 Eucalyptus blakleyi Acacia falcata Eucalyptus crebra Acacia terminalis1 Eucalyptus fibrosa Allocasuarina leuhmannii1 Indigofera australis Allocasuarina verticillata Eucalyptus moluccana Dodonaea triquetra1 Eucalyptus paniculata Hardenbergia violaceae1 Casuarina cunninghamiana 1 Casuarina glauca 1 Callistemon sp. 1 Eucalyptus camaldulensis 1 Gahnia sp. 1 Lomandra longifolia1 Melaleuca styphelioides 1 Isolepis nodosa 1 Lepidsperma sp. 1 Note 1: These species can be preferentially used along creek lines and in riparian areas Source: Camberwell Coal Mine Mining Operations Plan (2005) and GSSE (2008) Environmental Advisor 00 07/06/ /06/ of 150

27 During site preparation trees would be felled while smaller vegetation (primarily groundcover) would subsequently be scraped up with the topsoil to ensure retention of the seed bank and nutrients. Depending on the success of ecosystem establishment and development further endemic species may be used to achieve post mining land use outcomes (excluding declared noxious weeds or invasive species) (Appendix 2 Map 3) North Open Cut Rehabilitation planning criteria for the North Open Cut has been taken from Strategic Framework for Mine Closure (ANZMEC, 2000) and is consistent with the Environmental Assessment. The land capability class of those sections of the Mine Site that will be disturbed by mining operations will be approximately equal areas of Class V land and Class VII land. In addition, a covenant or other restriction will be placed over those areas of the Mine Site included within the biodiversity offset areas, to identify and limit the uses of the land to those consistent with nature conservation. Approximately 214ha of the rehabilitated areas of the Mine Site will be revegetated with native species to recreate and extend the locally occurring community types. In addition, Integra will provide for the long-term security of a further 278ha of remnant native vegetation and habitat corridors through the implementation of the biodiversity offset strategy. Notably, the offset strategy provides for the linkage of areas of rehabilitated land within the Mine Site with areas of undisturbed and enhanced vegetation in the surrounding areas, including vegetation in the vicinity of Reedy and Glennies Creeks, and with the rehabilitation and offset areas at the Mt Owen, Glendell, Ravensworth East and Ashton mines. In addition the offset strategy is consistent with the Synoptic Plan: Integrated Landscapes for Coal Mine Rehabilitation in the Hunter Valley and the Glennies Creek Catchment - Total Catchment Management Study Management Strategy. The rehabilitated areas will provide an important area of native vegetation and habitat for threatened species, including the Grey-crowned Babbler and the Brush-tailed Phascogale. This final land use has been agreed with the Department of Environment and Climate Change and the surrounding community. The final landform has been designed with slopes generally no greater than (1:5) (V:H). Slopes of 10º are generally considered suitable for rehabilitated final landforms, provided they are well protected from erosion and sedimentation by water management structures and vegetation. Surface water structures within the rehabilitated areas will be constructed and revegetated in a manner that will ensure that water will flow at non-erosive velocities and these structures will be regularly inspected to ensure that they are performing adequately and that they do not require maintenance that is greater than the maintenance of the surrounding undisturbed land. All non-production waste materials generated by the mine and associated activities will be disposed of off-site by waste contractors licensed for this function. All infrastructure not required for ongoing mining operations will be removed and rehabilitated prior to lease relinquishment. Environmental Advisor 00 07/06/ /06/ of 150

28 Underground MOP The final features remaining within the colliery holding post closure will consist of the original Oak Park School buildings and some water storage structures. All additional infrastructure used for mining purposes will be removed with the surrounding landforms rehabilitated. Oak Park School Buildings The old school and school masters residence will remain, with the immediate surrounding areas landscaped and returned to a condition which supports future use and/or habitation. Dams and Water Storage Facilities/Dams The water filled final void/dam located within the bench and portal sump areas (CL382, MLs 1437 and 1518) will have an approximate area of 5.8ha and a volume of approximately 400,000m 3. This dam will collect run-off from the surrounding rehabilitated landforms which will consist of slopes 10 to 18 immediately adjacent the dam, grading to less than 10 upslope. The existing mine process water dams upslope and to the west of the final void dam will also be retained for water storage/stock watering purposes, whilst the clean water dam adjacent Middle Falbrook Road will also be maintained to collect run-off from upslope areas formerly associated with the mine clean water catchment flow path. The existing dirty water retention dam located on MPL 343 will also likely be retained for water storage/stock watering purposes Environmental and Rehabilitation Risk Identification In the absence of appropriate management procedures, the potential highest risk associated with rehabilitation includes: Land preparation; and Vegetation and topsoil stripping. Table 10.4 references the appropriate Sections of the Relevant Plans for a description of management and mitigation measures to be implemented to reduce these risks. Table 10.4 Rehabilitation Environmental Management Strategies References Document Section Integra Open Cut Project MOP 3.3 North Open Cut MOP 3.2 Environmental Advisor 00 07/06/ /06/ of 150

29 11. Environmental Management Controls The description of environmental management controls as required by the DTIRIS Guidelines to the Mining, Rehabilitation and Environmental Management Process are described in the following Plans (Table 11.1). These Plans provide the necessary detail for the management and mitigation measures to be adopted for the Integra Mine Complex to ensure overall environmental management is undertaken in accordance with the relevant approvals. Air Quality Table 11.1 Environmental Management Control References Issue Document Section Air Quality and Greenhouse 5 Management Plan Water Management Water Management Plan Pending approval Contamination Integra Open Cut Project MOP North Open Cut MOP 7.6 Underground MOP 3.8.4, 3.9.1, Ecology Biodiversity Management Plan Pending approval Weed Control and Management Biodiversity Management Plan Pending approval Integra Open Cut Project MOP North Open Cut MOP 7.8 Noise Noise Management Plan 4 Blasting Blast Management Plan 4 Aboriginal Heritage Heritage Management Plan 4 Heritage Heritage Management Plan Pending approval Spontaneous Combustion Integra Open Cut Project MOP 5.5 North Open Cut MOP 7.13 Bushfire Integra Open Cut Project MOP Mine Subsidence North Open Cut MOP 7.14 Subsidence Management Plan and subset Plans (see Table 6.4) Refer to Sections in relevant Plans Hydrocarbon Contamination Integra Open Cut Project MOP North Open Cut MOP 7.15 Underground MOP Methane drainage/venting North Open Cut MOP 7.16 Underground MOP Public Safety Integra Open Cut Project MOP North Open Cut MOP 7.17 Underground MOP 7.2 Environmental Advisor 00 07/06/ /06/ of 150

30 12. Monitoring Requirements Rehabilitation monitoring requirements are discussed in detail following Table This table presents the overall environmental monitoring reference Plans for the site. Table 12.1 Environmental Monitoring References Issue Document Section Rehabilitation Integra Open Cut Project MOP 6.9 North Open Cut MOP 4.8 Underground MOP 5.1 Air Quality Air Quality and Greenhouse Management Plan 6 and 7 Water Management Water Management Plan Pending approval Contamination Integra Open Cut Project MOP North Open Cut MOP 7.6 Underground MOP 3.8.4, 3.9.1, Subsidence Management Plan See Section in all subset Plans Ecology Biodiversity Management Plan Pending approval Weed Control and Management Integra Open Cut Project MOP North Open Cut MOP 4.8 Biodiversity Management Plan Pending approval Noise Noise Management Plan 4 Blasting Blast Management Plan 4 Aboriginal Heritage Heritage Management Plan 4 Heritage Heritage Management Plan Pending approval Spontaneous Combustion North Open Cut MOP 7.13 Bushfire Integra Open Cut Project MOP North Open Cut MOP 7.14 Bushfire Management Plan Refer to Plan Mine Subsidence Underground MOP See Subsidence Plan Subsidence Management Plan Refer to Plan Hydrocarbon Contamination North Open Cut MOP 7.15 Methane drainage/venting North Open Cut MOP 7.16 Underground MOP 4.5 Public Safety Integra Open Cut Project MOP North Open Cut MOP 7.17 Underground MOP 7.2 Environmental Advisor 00 07/06/ /06/ of 150

31 12.1. Integra Open Cut Project A Rehabilitation Monitoring Program has been developed for the site which represents a combination of recommendations from both GSSE (2008) and DnA/CBE (2009). To the extent possible, monitoring sites will be established so that at least one monitoring site is represented for each major age class of the rehabilitation areas. Reference sites in areas not disturbed by mining activities will also be established for rehabilitated areas based on vegetation, terrain and proposed final land use outcomes. Monitoring of rehabilitation established prior to this REMP will continue to be monitored in accordance with the established rehabilitation monitoring regime as well as including other parameters as described in the MOP. In addition, the following monitoring will be undertaken for specific areas (GSSE, 2008). Monitoring to ensure all infrastructure is properly decommissioned will be conducted by site inspections of the area to be rehabilitated both during and following decommissioning. The inspections will determine if services have been properly isolated or removed; if all buildings not to remain have been removed; if all bitumen and hardstand materials have been removed; if all remaining buildings and infrastructure are in a safe condition and if all non-production waste has been removed from the site. The performance of remediated contaminated sites will be monitored by conducting soil sampling of the site following remediation to ensure the level of hydrocarbon in the soil is in accordance with Table 5A, Schedule B(1) of NEPC, Downstream water quality will be monitored for Total Oil and Grease and TPH on an ongoing basis in accordance with the EPL after remediation occurs until the area has been signed off as acceptable by the relevant regulatory authority. Once the landform has been reprofiled, it will be surveyed to ensure that the grades meet the relevant criteria as specified in Table 6.8 of the MOP. Where geotechnical stability is a consideration in the landform (e.g. the highwall), the area will be inspected and signed off by a suitably qualified engineer. During Ecosystem Establishment, the landform will be inspected for erosion and slumping in accordance with Table 6.12 of the MOP. Following construction, dams and major drainage structures will be inspected by an engineer or appropriately qualified technician to ensure they conform to the design North Open Cut Areas being rehabilitated will be regularly inspected and assessed against the short and long term rehabilitation objectives outlined in the Environmental Assessment. During regular inspections, the following will be monitored. Excessive erosion or sedimentation from areas with establishing vegetation cover. Success of initial cover crop or grass cover establishment. Success of tree and shrub plantings. Extent of natural regeneration of native species. Adequacy of drainage controls. General stability of the progressive or final rehabilitation areas. Environmental Advisor 00 07/06/ /06/ of 150

32 It is noted that both the Integra Underground and the expanded Integra Open Cut Project will continue to operate beyond the completion of the North Open Cut. This will ensure that personnel are available onsite to undertake and manage post mining rehabilitation and maintenance activities, including but not limited to the following. Where rehabilitation success appears limited, maintenance activities will be initiated. These may include re-seeding and where necessary, re-topsoiling and applying specialised treatments such as composted mulch to areas with poor vegetation establishment. Tree guards will be placed around planted seedlings should grazing by native animals be excessive. If drainage controls are found to be inadequate for their intended purpose, or compromised by wildlife or vegetation, these will be repaired or replaced. Temporary fences designed to exclude native fauna and livestock will be installed within the areas undergoing rehabilitation if grazing appears to be excessive. These fences will be additional to the perimeter fences which will be constructed to exclude domestic stock such as cattle and sheep. In the event that areas of excessive erosion and sedimentation are identified, remedial works such as importation of additional fill, subsoil or topsoil material, or redesigning of water management structures will be undertaken. Integra will take the necessary precautions to prevent the excessive development of weeds within the rehabilitated areas. Where appropriate, this will include campaign weed spraying prior to the stripping of topsoil Underground Activities for Underground operations will involve subsidence monitoring in accordance with the relevant subset Plans of the Subsidence Management Plan as outlined in Table 6.4. Any remediation actions as identified by monitoring will be undertaken in accordance with the Plans. 13. Competence, Training and Awareness All personnel shall undergo rehabilitation management awareness training. Rehabilitation Management shall be a component of the competency based site induction program. The following areas shall be covered in induction: Importance of rehabilitation; and Requirements for rehabilitation The Environmental Advisor shall be responsible for ensuring the appropriate rehabilitation management training is included in the induction. Environmental Advisor 00 07/06/ /06/ of 150

33 14. Roles and Responsibilities Role Responsibilities Operations Manager Must ensure adequate resources are available to enable implementation of this rehabilitation management plan Operations Manager (or equivalent) The Manager of Mining Engineering is accountable for the overall environmental performance of the Integra Coal Operations, including the outcomes of this rehabilitation management plan. Superintendents Environmental Advisor Accountable for ensuring all employees in the respective areas are committed to and implement the requirements of rehabilitation management at Integra as defined in this procedure. Responsible for providing consultative advice and facilitating training where required for rehabilitation management at Integra. Ensure rehabilitation management training is included in the induction. All personnel Responsible for ensuring the Rehabilitation Management Plan is complied with in all respects. 15. Review The review of this document will be in line with the sites Environmental Management Strategy. A review will be conducted in December 2011 after the Independent Environmental Audit and/or as required by relevant consent conditions. The purpose of the review is to ensure that the RMP remains suitable, adequate and effective. In addition if changes to the relevant documented Plans relevant to rehabilitation are amended, this Plan will also be reviewed and updated. Reporting for rehabilitation will be included in the Annual Review formerly known as the Annual Environmental Rehabilitation Report. Environmental Advisor 00 07/06/ /06/ of 150

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35 Appendices Appendix 1 Project Approval (Appendix 9) Rehabilitation Figure Appendix 2 Open Cut Rehabilitation Maps Appendix 3 Underground Project Rehabilitation Plans Appendix 4 Draft Rehabilitation and Decommission Strategy and Monitoring Methodology and Determination of Rehabilitation Criteria Appendix 5 CD for Management Plans Environmental Advisor 00 07/06/ /06/ of 150

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37 Appendix 1 Project Approval (Appendix 9) Rehabilitation Figure Environmental Advisor 00 07/06/ /06/ of 150

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39 Appendix 2 Open Cut Project Rehabilitation Maps Environmental Advisor 00 07/06/ /06/ of 150

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43 Appendix 3 Underground Project Rehabilitation Maps Environmental Advisor 00 07/06/ /06/ of 150

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47 Appendix 4 Draft Rehabilitation and Decommission Strategy and Monitoring Methodology and Determination of Rehabilitation Criteria Environmental Advisor 00 07/06/ /06/ of 150

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