Victorian Desalination Project - AquaSure

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2.2 Environmental Objectives and Targets The overarching environmental objectives of the Project are to: Commissioning Environmental Sub-plan (CESP) • comply with the environmental standards established for the Project through design and appropriate risk management • optimise energy efficiency through project design and offset any impact through the purchase of renewable energy credits for 100% of the electricity used at the Desalination Plant and Transfer Pipeline • protect the beneficial uses of the coastal and marine environment. The PRs specified in the Project Scope and Performance Requirements (PS&PRs) have been set as more detailed Project objectives and targets for the Project, particularly Appendix S3 Environmental Requirements to Annexure 3 of the PS&PRs. 3 Commissioning Overview 3.1 Commissioning Scope • Commissioning is the program of activities to test and run-in the plant so that it can become operational. For the purposes of the CESP this consists of all commissioning activities from the initial intake of seawater through to RT Finalisation. This involves the sequential and cumulative commissioning of the following elements of the Desalinated Water Supply System (DWSS), as shown in Table 3-1. From Preliminary Commercial Acceptance (PCA), the Operations and Maintenance (O&M) EMP will be the controlling document with appropriate parts of the D&C EMP documentation (including the CESP) embedded within. A detailed table of the commissioning process and sequencing is included in Appendix A of the Section 30A Commissioning Approval Application (TDV-0-EV-PL-0500). Table 3-1: Commissioning Components Component Description Liquid Discharge Solid Waste Marine Tunnels and Sea Water Lift Pump Station Commissioning Pre-Treatment Commissioning Reverse Osmosis and Potabilisation Commissioning Intake and discharge of seawater through the Seawater Lift Pump Pre-treatment including filtration through the Screen and Pump Station, and Dual Media Pressure Filter The reverse osmosis desalination of water and the potabilisation of desalinated water and the use of the Plant Substation Sea water (possibly with neutralised chemicals if shock chlorination occurs at this stage). pH increase due to leaching from concrete. pH buffered, filtered sea water (including neutralised chemicals) pH buffered, filtered sea water (including neutralised chemicals) None Organic screen rejects Ferric sludge Lime sludge // Page 15 // TDV-0-EV-SB-0021.I-03
Commissioning Environmental Sub-plan (CESP) Component Description Liquid Discharge Solid Waste Desalinated Water Production Commissioning (Overall Systems Commissioning) The production of desalinated water, and discharging of brine. This includes: • using the treated water storages, • transfer pump station • transfer pipeline Brine (including neutralised chemicals) Lime sludge Ferric Sludge Organic screen rejects For 150 GL/yr capacity, the process involves three parallel streams, each of 50GL capacity. One stream will be progressively commissioned to produce desalinated water, with the commissioning of the remaining streams occurring in parallel after successful completion of the commissioning of the first stream. The commissioning of the underground high voltage power supply is not included within this CESP, as this is addressed in the Utilities D&C EMP. Cleaning and Construction Verification activities are addressed through the D&C Area EMPs, as part of the construction activities. The requirements for the generation, handling and disposal of waste from commissioning are the subject of a separate authorisation from the EPA. This is outlined in Section 3.3 below. 3.2 Commissioning Components The CESP consists of all commissioning activities from the initial intake of seawater through to Overall Systems Commissioning (see Figure 3). This involves the cumulative commissioning of the following components: • Marine Tunnels and Sea Water Lift Pump Station Commissioning • Pre-Treatment Commissioning • Reverse Osmosis and Potabilisation Commissioning • Overall Systems Commissioning The location of these components is shown in Figure 3. Stream 1 will be commissioned initially. Stream 2 and Stream 3 will be commissioned subsequent to Overall Systems Commissioning. Each of the four commissioning components have their own Commissioning Management Strategy, included in Attachment I.2 to this CESP and described in more detail in Section 6.2.2 below. During the commissioning of Stream 1, it is likely that the Commissioning Management Strategies will be operational sequentially and not concurrently. During the commissioning of Stream 2 and Stream 3, several Commissioning Management Strategies may be operational in parallel. Appendix I.2 provides detail on the triggering and close out of the Commissioning Management Strategies. // Page 16 // TDV-0-EV-SB-0021.I-03
Page 1 and 2: Victorian Desalination Project TDJV
Page 3 and 4: Commissioning Environmental Sub-pla
Page 5 and 6: Definitions and Acronyms AEMP Area
Page 9 and 10: 1.2 Application Commissioning Envir
Page 11 and 12: 2 Project Overview 2.1 VDP Project
Page 13: 2.1.1 Area 1 - Marine Intake and Ou
Page 19 and 20: Overall Activity Commissioning Envi
Page 25 and 26: 4.4 Project Management Documentatio
Page 27 and 28: 4.6.2 Commissioning Work Packs Comm
Page 31 and 32: 5.3 TDJV Roles and Responsibilities
Page 33 and 34: Title Role and Responsibility All S
Page 35 and 36: Table 6-1: Register for Environment
Page 37 and 38: Action Responsibility Initial Issue
Page 39 and 40: 7 Competency Training and Awareness
Page 41 and 42: 8 Communications 8.1 AquaSure Commu
Page 43 and 44: 10 Checking 10.1 Monitoring and Mea
Page 47 and 48: 11 Review, Reporting and Improvemen

Victorian Desalination Project - AquaSure

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