Attachment 2 Supporting Information for a Site-Specific EA Application Petroleum Lease 1058 (PL 1058) – Bearcat Table of Contents 1.0 Introduction .................................................................................................................................. 5 2.0 Application Description .............................................................................................................. 7 2.1 Existing Activities ................................................................................................................ 7 2.2 Proposed Activities .............................................................................................................. 7 2.3 Description of Proposed Activities .................................................................................... 10 2.3.1 Seismic Survey Activities ..................................................................................... 10 2.3.2 Well Lease Establishment .................................................................................... 11 2.3.3 Well Drilling Activities and Associated Infrastructure ........................................... 11 2.3.4 Gathering Lines .................................................................................................... 12 2.3.5 Access Tracks ...................................................................................................... 12 2.3.6 Borrow Pits ........................................................................................................... 12 2.3.7 Other Incidental Petroleum Activities ................................................................... 13 2.4 Blueprint Conditions .......................................................................................................... 14 3.0 Site Description, Land Use and Climate ................................................................................. 15 3.1 Site Description and Land Use ......................................................................................... 15 3.1 Climate .............................................................................................................................. 15 4.0 Relevant Environmental Values ............................................................................................... 18 4.1 Land Resources ................................................................................................................ 18 4.2 Flora and Regional Ecosystems ....................................................................................... 19 4.3 Environmentally Sensitive Areas ...................................................................................... 21 4.4 Fauna ................................................................................................................................ 21 4.5 Surface Water and Wetlands ............................................................................................ 22 4.6 Groundwater ..................................................................................................................... 25 4.7 Air Quality .......................................................................................................................... 29 4.8 Noise ................................................................................................................................. 30 4.9 Waste ................................................................................................................................ 30 4.10 Rehabilitation .................................................................................................................... 32 4.11 Matters of State Environmental Significance .................................................................... 33 5.0 Potential Impacts, Mitigation Measures and Environmental Risk Assessment ................. 34 5.1 Land Resources ................................................................................................................ 34 5.2 Flora, Regional Ecosystems and Environmentally Sensitive Areas ................................. 35 5.3 Fauna ................................................................................................................................ 36 5.4 Surface Water and Wetlands ............................................................................................ 38 Santos Ltd l New EA Application for a Resource Authority (PL 1058) l 11 May 2021 Page i 5.5 Groundwater ..................................................................................................................... 41 5.6 Air Quality .......................................................................................................................... 47 5.7 Noise ................................................................................................................................. 48 5.8 Waste ................................................................................................................................ 49 5.9 Rehabilitation .................................................................................................................... 50 5.10 Matters of State Environmental Significance .................................................................... 51 6.0 Legislative Considerations ....................................................................................................... 57 6.1 Environmental Protection Act 1994 (EP Act) .................................................................... 57 6.1.1 General Requirements for an EA Application (s125 EP Act) ............................... 57 6.1.2 Requirements for Site-Specific Applications – CSG Activities (s126 EP Act)...... 59 6.1.3 Requirements for Site-Specific Applications – Underground Water Rights (s126A EP Act) 59 6.1.4 The Standard Criteria (s178 EP Act) .................................................................... 65 6.2 Environmental Offsets Act 2014 ....................................................................................... 67 6.2.1 Wetlands and Watercourses ................................................................................ 70 6.2.2 Designated Precinct in a Strategic Environmental Area ...................................... 72 6.2.3 Protected Wildlife Habitat ..................................................................................... 74 7.0 References ................................................................................................................................. 78 8.0 Appendices ................................................................................................................................ 80 Tables Table 2-1: Schedule A, Table 1 – Scale of Activities ............................................................................... 7 Table 2-2: Authorised and Incidental Activities under ATPs and PLs ..................................................... 8 Table 3-1: Property and Lot on Plan Details for PL 1058 ...................................................................... 15 Table 3-2: Sub-block Identification for PL 1058 .................................................................................... 15 Table 4-1: PL 1058 Land Systems ........................................................................................................ 18 Table 4-2: PL 1058 Ground Truthed Regional Ecosystems (adapted from E2M, 2021) ...................... 19 Table 4-3: NC Act / EPBC Act listed species considered likely to occur within PL 1058 (E2M, 2021) . 21 Table 4-4: Units Adjacent to Birkhead Formation .................................................................................. 27 Table 4-5. Background Air Quality Data relevant to PL 1058................................................................ 29 Table 4-6: MSES in PL 1058 ................................................................................................................. 33 Table 5-1: Environmental Risk Assessment .......................................................................................... 52 Table 6-1: General Requirements EA Application (s125 EP Act) ......................................................... 57 Table 6-2: Underground Water Rights (s126A) ..................................................................................... 59 Table 6-3: Standard Criteria as Defined Under Schedule 4 of EP Act .................................................. 65 Santos Ltd l New EA Application for a Resource Authority (PL 1058) l 11 May 2021 Page ii Table 6-4: Prescribed Environmental Matter Assessment .................................................................... 67 Table 6-5: Significant Residual Impact Summary Table ....................................................................... 69 Table 6-6: Impact Assessment of PL 1058 MSES Wetlands and Watercourses .................................. 70 Table 6-7: Impact Assessment of the Environmental Attributes of the Channel Country SEA ............. 73 Table 6-8: Significant Residual Impact Assessment for Grey Grasswren ............................................. 75 Table 6-9: Significant Residual Impact Assessment for Short-beaked Echidna ................................... 76 Figures Figure 1-1: Regional Location of PL 1058 ............................................................................................... 6 Figure 3-1: PL 1058 Graticular Blocks..................................................................................................