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West Erregulla 3D Seismic Survey 2014 Rehabilitation

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West Erregulla 3D Seismic Survey 2014 Rehabilitation Warrego Energy PTY Ltd EP 469 – West Erregulla 3D Seismic Survey 2014 Rehabilitation Management Plan December 2014 This page has been left intentionally blank EP 469 – West Erregulla 3D Seismic Survey 2014 Prepared for Warrego Energy Pty Ltd Prepared by Coffey Environments Australia Pty Ltd Suite 2, 53 Burswood Road Burswood WA 610 Australia PO Box 42223 Victoria Park WA 6979 Australia t +61 8 9269 6900 f +61 8 9269 6299 coffey.com ABN: 65 140 765 902 December 2014 ENAUPERT02034_12_RMP_v4 Quality Information Revision History Revision Description Date Reviewer v1 Draft to Warrego Energy 26/11/2014 Denise True v2 Revised draft to Warrego Energy 05/12/2014 Denise True v3 Draft to Department of Mines and 08/12/2014 Denise True Petroleum (DMP) v4 Final to DMP 24/12/2014 Denise True Distribution Report Status No. of copies Format Distributed to Date v1 1 Word (electronic) Warrego Energy 26/11/2014 v2 1 Word (electronic) Warrego Energy 05/12/2014 v3 1 PDF (electronic) Warrego Energy 08/12/2014 1 PDF (electronic) DMP v4 1 PDF (electronic) Warrego Energy 24/12/2014 1 PDF (electronic) DMP Coffey Environments Australia Pty Ltd i ABN: 65 140 765 902 This page has been left intentionally blank Coffey Environments Australia Pty Ltd ii ABN: 65 140 765 902 Contents 1 Introduction ................................................................................................................................. 1 1.1 Background ......................................................................................................................... 1 1.2 Purpose .............................................................................................................................. 1 2 Existing environment ................................................................................................................. 5 2.1 Site history and existing land use and disturbance ............................................................ 5 2.2 Flora and vegetation ........................................................................................................... 5 2.3 Current dieback status ........................................................................................................ 5 2.4 Weeds ................................................................................................................................. 5 2.5 Feral animals ...................................................................................................................... 6 3 Rehabilitation activities .............................................................................................................. 7 3.1 Demobilisation and removal of project infrastructure and waste ........................................ 7 3.2 Controlling third party access ............................................................................................. 7 3.3 Ground preparation and vegetation management .............................................................. 7 3.4 Remedial planting or seeding ............................................................................................. 7 3.5 Weed control ....................................................................................................................... 8 3.6 Stakeholder liaison ............................................................................................................. 8 4 Rehabilitation completion criteria ............................................................................................. 9 5 Monitoring ................................................................................................................................. 11 6 Schedule .................................................................................................................................... 13 7 Reporting and review ............................................................................................................... 15 8 References ................................................................................................................................. 17 9 Glossary ..................................................................................................................................... 19 9.1 Acronyms and abbreviations ............................................................................................ 19 9.2 Symbols and units of measure ......................................................................................... 19 Figures 1 Project area ................................................................................................................................... 2 2 Approved clearing area and conceptual disturbance footprint of the project ............................... 3 Tables 1 Indicative project schedule ......................................................................................................... 13 Appendices A Vegetation types in the project area B Summary of conservation significant flora Coffey ENAUPERT02034AF_12_RMP_v4 iii December 2014 This page has been left intentionally blank Coffey ENAUPERT02034AF_12_RMP_v4 iv December 2014 EP 468 – West Erregulla 3D Seismic Survey 2014 | Rehabilitation Management Plan 1 Introduction This chapter provides an introduction to the project and the purpose of this document. 1.1 Background Warrego Energy Pty Ltd (Warrego Energy) is undertaking a three-dimensional (3D) seismic survey (the project) within exploration permit EP 469, approximately 50 km southeast of Dongara and 300 km north of Perth (Figure 1). The West Erregulla Field – the target of the project – was discovered in 1990 following the drilling of the West Erregulla-1 well by Barrack Energy Limited. The project aims to further delineate subsurface hydrocarbon deposits and add to existing knowledge about hydrocarbon reserves in this area of the North Perth Basin to support future drilling and production activities. The project involves traversing the project area in a grid pattern, sending, receiving and processing seismic signals in order to map the underlying geology using Vibroseis trucks. Preparation of the source lines for Vibroseis trucks involved clearing of native vegetation. Clearing of native vegetation for receiver lines was not required other than for three east-west access tracks oriented along selected receiver lines. A total of 56 ha of native vegetation were cleared for the project (Figure 2). Vegetation was cleared using a raised roller mulching technique and mulched vegetation has been spread behind the machine, leaving rootstock intact to increase rehabilitation success. Clearing equipment was equipped with a GPS pre-programmed with the line locations so that locations of Threatened species were avoided. Lines were also altered to avoid topographical obstructions (e.g., laterite breakaways and steep slopes) and other environmentally sensitive features (e.g., drainage lines and watercourses). This project has been approved by the Department of Mines and Petroleum (DMP) under the Petroleum and Geothermal Energy Resources Act 1967 (PGER Act). 1.2 Purpose Oil and gas exploration is a temporary land use that should be integrated with, or succeeded by, other land uses. The purpose of this Rehabilitation Management Plan (RMP) is to outline the general rehabilitation and revegetation management actions that will be undertaken for the project to ensure the project area is returned to a condition suitable for future land use following completion of the project. This rehabilitation program has been designed using a risk-based approach as endorsed by the DMP and the Western Australian Environment Protection Authority (EPA) (DMP, 2011). Details of the environmental risk assessment are presented in the project’s approved Environment Plan (Coffey, 2014a). This RMP should be read in conjunction with the project’s approved Environment Plan (Coffey, 2014a) and Dieback and Weed Management Plan (Coffey, 2014b). Coffey ENAUPERT02034AF_12_RMP_v4 1 December 2014 290000 300000 310000 320000 330000 340000 350000 360000 370000 380000 B Water SupplyRoad u Depot Hill Road r Road ! m inge orawa a M new M Ro ad !Geraldton ! MINGENEW !Dongara 6770000 iver 6770000 T Loc kier R he Mid Green Brook Western lands d Roa Australia !Cervantes ! iver DONGARA R in ! rw M I !Perth ilo K R 6760000 a o a d 6760000 il i s Ejarno SouthRoad Mingenew D r iv Spring e ! Yandanooka West Road Yandanooka West Road 6750000 Sa 6750000 nd Pla in Cr eek EP 469 MitchellRoad Mount Adams Road LEGEND ! T NattaRoad om kin ! s R Populated place oa rrowsmit d A h River ! Spring 6740000 6740000 r ve Major road Ri h it m s Minor road w o r r A Track THREE SPRINGS Major watercourse ! Baharra ! Minor watercourse 6730000 Spring 6730000 Brand Highway EPA Redbook area Nebroo Environmentally N Spring ! sensitive aread oa s R ng e Projectpri exploration permit v S i r ree 05km D Th n ba a ab Petroleum title e e Scale 1:360,000 c n E O 6720000 6720000 Page size: A4 n Source: Esri, DigitalGlobe, GeoEye, i-cubed, Earthstar Geographics,Project CNES/Airbus area / approved DS, USDA, clearing USGS, area a i d Projection: GDA94 MGA Zone 50 n AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GIS User Community I 290000 300000 310000 320000 330000 340000 350000 360000 370000 380000 Source and notes: Date: Figure No: Seismic survey area from Warrego Energy; Petroleum title from DMP 08.12.2014 Warrego Energy Crown reserves from Landgate MXT: Nature reserves and environmentally sensitive areas from DER. EPA Redbook data from DEC (downloaded
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