Gladstone Pacific Nickel Refinery – Summary Project Description Appendix B
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Coordinator-General's report Gladstone Nickel Project Report evaluating the Environmental Impact Statement, pursuant to Section 35 of the State Development and Public Works Organisation Act 1971 (Qld) Released: 15 January 2009 Contents Coordinator-General’s Report – Synopsis...................................................6 1. Introduction...........................................................................................10 2. Project description ...............................................................................11 2.1 The Proponent.................................................................................11 2.2 The Project ......................................................................................11 2.3 Project rationale...............................................................................12 3. Impact assessment process ................................................................16 3.1 Significant project declaration and controlled action........................16 3.2 Review and refinement of the EIS terms of reference .....................16 3.3 Public review of the EIS...................................................................17 3.4 Review of the Supplementary EIS ...................................................19 3.5 Changes to the Project after the release of the SEIS ......................21 4. Evaluation of environmental effects ...................................................22 4.1 Performance criteria for progression to Stage 2 ..............................23 4.2 Treated wastewater discharge into Port Curtis ................................27 4.2.1 Origin and characteristics of barren liquor waste .............................................. 27 4.2.2 Alternatives to barren liquor discharge to Port Curtis ........................................ 29 4.2.3 Establishment of Water Quality Objectives (WQOs) ......................................... 31 4.2.4 Proposed future studies and monitoring by GPNL ............................................ 34 4.2.5 Proposed discharge methodology and release concentrations......................... 35 4.2.6 Fate of the discharge in the marine environment .............................................. 38 4.3 Air emissions ...................................................................................44 4.3.1 General background on air quality in Gladstone ............................................... 44 4.3.2 Scope of air emissions, and the proposed monitoring and mitigation regime... 45 4.3.3 Sulphur dioxide (SO2) emissions ....................................................................... 46 4.3.4 Dust and air particulates .................................................................................... 51 4.3.5 Hydrogen sulphide (H2S) ................................................................................... 53 4.4 Flora and fauna impacts ..................................................................54 4.4.1 Refinery site ....................................................................................................... 55 4.4.2 Residue Storage Facility (RSF) site................................................................... 58 4.4.3 Ore slurry and residue pipelines ........................................................................ 62 4.5 Acid sulfate soils..............................................................................66 4.6 Water supply....................................................................................68 4.6.1 Use of seawater ................................................................................................. 68 4.6.2 Use of freshwater............................................................................................... 69 4.7 Road impacts...................................................................................70 4.7.1 Scope of potential road impacts ........................................................................ 70 4.7.2 Transport matters not covered in the EIS.......................................................... 72 4.7.3 Specific operational impacts of the refinery....................................................... 74 4.7.4 Gladstone regional roads impacted by the refinery and RSF............................ 76 4.7.5 Other general road matters................................................................................ 78 4.8 General Residue Storage Facility site matters.................................80 4.8.1 RSF location and site details ............................................................................. 80 4.8.2 Characteristics and fate of RSF seepage.......................................................... 82 4.8.3 Implications for the RSF of a potential Castlehope Dam on the Calliope River 85 4.8.4 RSF capacity considerations ............................................................................. 87 4.8.5 Potential reduction of water yield at Fairview .................................................... 88 4.9 Other refinery site matters ...............................................................89 4.9.1 Powerlines ......................................................................................................... 89 4.9.2 Drainage............................................................................................................. 90 4.9.3 Visual impacts.................................................................................................... 91 2 4.9.4 Waste management........................................................................................... 91 4.9.5 PAM transport .................................................................................................... 91 4.9.6 Groundwater effects of the East End Mine........................................................ 93 4.10 Other pipeline site matters...............................................................93 4.11 Socio-economic impacts..................................................................95 4.11.1 Construction worker accommodation ............................................................ 96 4.11.2 Impacts of the Project on local businesses ................................................. 100 4.11.3 Social impacts of the operation of the Project............................................. 102 5. Environmental Management Plans ...................................................106 6. Matters of National Environmental Significance..............................108 6.1 Project assessment and approvals................................................108 6.2 Findings and conclusions ..............................................................109 6.2.1 General ............................................................................................................ 109 6.2.2 Findings and conclusions on World Heritage values....................................... 109 6.2.3 Findings and conclusions on listed species and communities ........................ 113 7. Conclusion ..........................................................................................114 8. Acronyms, abbreviations and glossary............................................116 Coordinator-General’s Report Gladstone Nickel Project 3 Figures Figure 1. Gladstone Pacific Nickel Project – regional locality Figure 2. Gladstone Pacific Nickel Project – Gladstone locality Figure 3. Seawater and treated water infrastructure Figure 4. Modelled 6-hourly maximum ‘tracer’ concentrations of marine discharge constituents (other than Mn) in Port Curtis for Stage 2 of the Project Tables Table 1. Water Quality Objectives for discharge to marine environment proposed by GPNL Table 2. Release concentrations at the diffuser compared to the WQOs or median ambient seawater concentrations Table 3. Modelled estimates for the total maximum near-field concentrations of the marine discharge for Stage 2 of the Project (at a tidal velocity of 0.25 m/s) compared to the WQOs or median ambient seawater concentrations Table 3. Modelled estimates for the total maximum near-field concentrations of the marine discharge for Stage 2 of the Project (at a tidal velocity of 0.25 m/s) compared to the WQOs or median ambient seawater concentrations Table 5. Existing EPP (Air) and NEPM air quality goals for SO2 Table 6. Proposed vegetation clearing for the GNP by VMA Regional Ecosystem Table 7. Operational road use details for the transport of lime to the refinery, and amsul and metal from the refinery Schedules of Conditions Schedule A1. Coordinator-General’s conditions for Environmentally Relevant Activities – Refinery construction Schedule A2. Coordinator-General’s conditions for Environmentally Relevant Activities – Refinery operation Schedule A3. Coordinator-General’s conditions for Environmentally Relevant Activities – Residue Storage Facility, construction and operation Schedule A4. Coordinator-General’s conditions for Environmentally Relevant Activities – Pipeline from Refinery to Residue Storage Facility, construction and operation Schedule A5. Coordinator-General’s conditions for Environmentally Relevant Activities – Ore Slurry Pipeline from Marlborough to Gladstone, construction and operation Schedule B. Coordinator-General’s recommendations to Gladstone Ports Corporation Limited regarding approval conditions for Project works on Strategic Port Land Schedule C1. Coordinator-General’s conditions and recommendations for the nickel refinery, including the materials infrastructure, within the Gladstone State Development