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Power Supply Upgrade Program – Minto Substation Review of Environmental Factors July 2014

Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

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Page 1: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

Chalmers Street Substation Review of Environmental Factors

AUGUST 2015

Power Supply Upgrade Program – Minto SubstationReview of Environmental Factors

July 2014

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This report has been prepared by GHD for Transport for NSW and may only be used and relied on by Transport for NSW for the purpose agreed between GHD and the Transport for NSW as set out in section 1.5 of this report.

GHD otherwise disclaims responsibility to any person other than Transport for NSW arising in connection with this report. GHD also excludes implied warranties and conditions, to the extent legally permissible.

The services undertaken by GHD in connection with preparing this report were limited to those specifically detailed in the report and are subject to the scope limitations set out in the report.

The opinions, conclusions and any recommendations in this report are based on conditions encountered and information reviewed at the date of preparation of the report. GHD has no responsibility or obligation to update this report to account for events or changes occurring subsequent to the date that the report was prepared.

The opinions, conclusions and any recommendations in this report are based on assumptions made by GHD described in this report (refer section 1.5 of this report). GHD disclaims liability arising from any of the assumptions being incorrect.

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Table of contents

Glossary of terms vi

List of abbreviations vii

Executive summary viii

1 Introduction 1

1.1 Overview 1

1.2 The Power Supply Upgrade Program 1

1.3 The proposal 1

1.4 Structure of the REF 3

1.5 Scope and methodology 3

2 Location and setting 5

2.1 Site location and description 5

2.2 The study area and site context 5

3 Statutory framework 7

3.1 Environmental Planning and Assessment Act 1979 7

3.2 Environmental planning instruments 7

3.3 Other legislative considerations 9

3.4 Summary of approval requirements 11

4 Strategic context, need and options considered 12

4.1 Strategic context and need for the proposal 12

4.2 Proposal development process 12

4.3 Objectives of the proposal 13

4.4 Options considered 13

4.5 Preferred option for the proposal 14

5 Description of the proposal 16

5.1 The proposed substation 16

4.2 Decommissioning of Leumeah Substation 21

5.3 Construction information 22

5.4 Operation of the proposal 25

5.5 Sustainability 25

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6 Community and stakeholder consultation 27

6.1 Consultation framework 27

7 Environmental impact assessment 29

7.1 Soils and water quality 29

7.2 Flora and fauna 33

7.3 Noise and vibration 38

7.4 Air quality 45

7.5 Traffic and transport 46

7.6 Land use and social-economic issues 49

7.7 Visual amenity 51

7.8 Heritage 52

7.9 Electromagnetic energy 53

7.10 Waste 54

7.11 Cumulative impacts 55

8 Environmental management and mitigation 56

8.1 Environmental management plans 56

8.2 Summary of mitigation measures 56

9 Conclusion 63

9.1 Justification of the proposal 63

9.2 Summary of REF findings 63

9.3 Conclusion 64

10 Reference list 65

Appendices

Appendix A – Clause 228 factors and ecologically sustainable development considerations under the EP&A Act 66

Appendix B – Concept design plans 69

Appendix C – Flora and fauna assessment results 74

Appendix D – Electromagnetic energy assessment 108

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Table index

Table 1.1 Structure and content of the REF 3

Table 3.1 Consideration of the provisions of SREP 20 8

Table 3.2 Consideration of relevant NSW legislation 9

Table 3.3 EPBC Act protected matters search results 11

Table 7.1 Construction noise management levels 39

Table 7.2 Operational noise criteria at sensitive receivers and other land uses 40

Table 7.3 Guidance on effects of vibration levels for human comfort (BS 5228.2 – 2009) 41

Table 7.4 Guideline values for short-term vibration on structures (DIN 4150-3–1999) 41

Table 7.5 Predicted construction noise levels 41

Table 7.6 Construction noise qualitative impact assessment 42

Table 7.7 Equipment noise sources, dB(A) 43

Table 7.8 Predicted operational noise levels 44

Table 8.1 Mitigation measures 58

Figure index

Figure 1.1 Location of the proposal 2

Figure 2.1 Land use and key features of the study area 6

Figure 5.1 Proposed substation, connections to existing systems and construction compound 19

Figure 7.1 Images of McBarron Creek 30

Figure 7.2 Images of existing vegetation on the proposal site 35

Figure 7.3 Existing vegetation 36

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Glossary of terms

Term DefinitionAir gap Where two wire runs overlap each other.

Circuit breakers Manually or automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. The basic function is to detect a fault condition and interrupt current flow.

dB(A) Decibel expressed with the frequency weighting filter used to measure ‘A-weighted’ sound pressure levels, which conforms more or less to the human ear response, as our hearing is less sensitive at low and high frequencies.

Feeders In the context of the Power Supply Upgrade Program, a feeder is either

• a 33kV AC cable coming in to the substation from the Sydney Trains supply or from Ausgrid

• a cable supplying 1500V DC from the substation to the overhead wiring system.

LA90(period) The A-weighted sound pressure level that is exceeded for 90% of the time over which a given sound is measured. This is considered to represent the background noise e.g. LA90(15 min).

LAeq(period) Equivalent sound pressure level: the steady sound level that, over a specified period of time, would produce the same energy equivalence as the fluctuating sound level actually occurring.

Microtesla A unit of measurement for magnetic strength.

Pantograph The apparatus mounted on the roof of an electric train to collect power through contact with an overhead catenary wire.

Proposal Refers the construction and operation of Minto Substation.

Proposal site The immediate location of the proposal, which is the area that has the potential to be directly disturbed by construction.

RailCorp Former Rail Corporation of NSW, now referred to as Sydney Trains.

Rectifiers An electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification.

Sectioning hut A building which is generally located between substations and contains circuit breakers. It provides protection and sectioning of the overhead traction supply system and, on multiple tracks, improves voltage regulation.

Study area Consists of land in the vicinity of the proposal site, including land that has the potential to be indirectly impacted by the proposal.

Sydney Trains Former Rail Corporation of NSW (RailCorp).

Traction substation A traction substation is an electrical substation that converts electric power from the form provided by the electricity provider to an appropriate voltage, current type and frequency able to be used to the supply the rail network with power.

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List of abbreviations

Abbreviation DefinitionARPANSA Australian Radiation and Nuclear Protection Safety Agency

AHD Australian height datum

CEMP construction environmental management plan

DC direct current

DCCB direct current circuit breaker

DP deposited plan

EME electromagnetic energy

EP&A Act Environmental Planning and Assessment Act 1979

EPA Environment Protection Authority

EPBC Act Environment Protection and Biodiversity Act 1999

EPL environmental protection licence

GHD GHD Pty Ltd

HV high voltage

ICNG Interim Construction Noise Guideline (DECC 2009)

Infrastructure SEPP State Environmental Planning Policy (Infrastructure) 2007

INP Industrial Noise Policy (EPA 2000)

kV kilovolt

LEP local environmental plan

LGA local government area

m metre

m2 square metre

MW megawatt

NPWS National Parks and Wildlife Service

NSW New South Wales

OEH Office of Environment and Heritage

POEO Act Protection of the Environment Operations Act 1997

PSU Program Power Supply Upgrade Program

RBL rating background levels

REF review of environmental factors

REP regional environmental plan

RMS Roads and Maritime Services (formerly the NSW Roads and Traffic Authority (RTA))

SCADA supervisory control and data acquisition

SEPP State Environmental Planning Policy

SF6 sulfur hexafluoride gas

SREP Sydney Regional Environmental Plan

SREP 20 Sydney Regional Environmental Plan No. 20 – Hawkesbury Nepean River (No.2 – 1997)

Substation Minto Substation

TSC Act Threatened Species Conservation Act 1995

V volt

VESDA very early smoke detection alarm

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Executive summary

Overview

This review of environmental factors (REF) considers the potential impacts of the construction and operation of a new traction substation at Minto, between Minto and Leumeah stations on the Main Southern Line. It has been prepared by GHD Pty Ltd on behalf of Transport for NSW to assess the potential impacts of the proposal, and assist Transport for NSW determine the proposal in accordance with the provisions of Part 5 of the NSW Environmental Planning and Assessment Act 1979 (EP&A Act).

Why is the proposal needed?

Transport for NSW is currently undertaking the Power Supply Upgrade Program (the PSU Program) to meet the actual and projected increase in power demands on the Sydney Trains electrical network. A power supply study (RailCorp, 2011) undertaken as part of the PSU Program identified that a new substation was required in the Minto area to:

• provide additional capacity and improved reliability for the operation of trains along the Main Southern Line and the South West Rail Link

• reduce the loading on adjacent substations

• allow for the decommissioning of the existing Leumeah Substation, which has reached the end of its economic life.

Where would the proposal be located?

The proposal is located within the suburb of Minto, on land adjacent to the rail corridor that is owned by Sydney Trains. It is located behind the Austrak Business Park, which is accessed via Magnum Place off Pembroke Road. Surrounding land uses are dominated by industrial development and rail infrastructure (the rail line and Leumeah Substation). Leumeah Substation is located about 35 metres to the south of the proposal.

What would the proposal involve?

The proposal involves constructing and operating a new substation within land owned by Sydney Trains, which is adjacent to the rail corridor for the Main Southern Line. The substation would supply traction power to the Sydney Trains rail network, to meet the needs identified by the power supply study. The substation would include electrical equipment and connections, as well as an administration office, staff amenities and parking.

The substation would be accessed via the existing corridor access road that runs along the rail corridor. This corridor access road would need to be upgraded and sealed. To accommodate the upgraded access road, the existing feeder along the rail corridor would be relocated to below ground.

Wastewater, potable water and stormwater drainage pipelines would also be constructed to service the proposed substation. The wastewater and water pipelines would connect to Sydney Water’s existing mains, located within the rail corridor and on Pembroke Road respectively.

The proposal also involves decommissioning Leumeah Substation.

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How long would the proposal take to construct?

It is anticipated that construction of the proposal would commence in mid to late 2015, and would around 12 months to construct. The main civil construction activities would be completed within nine months, while the fit out of the substation would take three months. The proposed substation would be required to be operational by September 2016. The decommissioning works at Leumeah Substation would take up to about three to four weeks.

Summary of the findings of the REF

There are not considered to be any significant long-term environmental issues associated with the presence of the substation on the proposal site, or its operation. In the short-term, there may be minor adverse impacts associated with construction. The main potential impacts that would require management are:

• traffic and access impacts associated with the need for heavy vehicles to access the site, and the requirement for some oversized deliveries

• potential disturbance of any contaminated fill material associated with the rail corridor

• noise due to the operation of machinery and equipment

• minor clearing of vegetation during on-site enabling works.

These construction impacts would be relatively minor and short-term, and would be mitigated by the implementation of the mitigation measures.

Operation impacts would be limited to the presence of a new structure in the landscape; however there is limited visibility to the proposal site from any sensitive receivers. Operation of the substation would generate minor levels of noise. However given the industrial nature of the study area and the proximity to the existing rail corridor, these impacts are expected to be negligible. The distance to the nearest sensitive receivers (residences located about 400 metres east of the substation site), and the fact that there are a number of large factory buildings located between the proposal site and the receivers, limits the potential significance of any operational impacts.

The proposal would result in long-term positive impacts as it would increase the capacity of the rail corridor’s power supply network, enabling it to meet the projected increase in power demands on the rail network. This would provide long-term benefits to users of the rail network.

Adverse environmental impacts would be minimised by implementing the mitigation measures listed in this REF, including preparing and implementing a construction environmental management plan.

Justification and conclusion

The proposal is needed to meet the actual and projected increase in power demands on the Sydney Trains electrical network.

The potential environmental impacts of the proposal have been assessed in accordance with section 111 of the EP&A Act, clause 228 of the Environmental Planning and Assessment Regulation 2000, the Threatened Species Conservation Act 1995, and the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. It is considered that the adverse environmental impacts would be generally short-term and localised in nature. With the adoption and implementation of the mitigation and management measures listed in this REF, the potential environmental impacts of the proposal would be adequately mitigated and managed, and are not considered to be significant.

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1 Introduction

1.1 Overview

Transport for NSW is currently undertaking the Power Supply Upgrade Program (the PSU Program) to meet the actual and projected increase in power demands on the Sydney Trains electrical network. A power supply study (RailCorp, 2011) undertaken as part of the program determined that a new substation was required in the Minto area to provide additional capacity and improve reliability for the operation of trains along the rail network.

Transport for NSW is proposing to construct a new substation between Minto and Leumeah stations to address the needs identified by the power study. The new substation would also allow the existing Leumeah Substation to be decommissioned as it has reached the end of its economic life.

The construction and operation of Minto Substation (referred to as ‘the proposal’ for the purposes of this document) is subject to assessment and determination under Part 5 of the NSW Environmental Planning and Assessment Act 1979 (the EP&A Act). GHD Pty Ltd (GHD) was commissioned by Transport for NSW to undertake an assessment of the potential environmental impacts of the proposal, and prepare a review of environmental factors (REF) in accordance with the EP&A Act.

1.2 The Power Supply Upgrade Program

The PSU Program was initiated by RailCorp in 2005 to ensure that Sydney’s rail network will be capable of meeting the expected power requirements of future train timetables, and the requirements of the new generation of air conditioned trains (for example, Waratah trains). The PSU Program involves constructing new electrical infrastructure and upgrading substations, sectioning huts, overhead wiring and feeders across the network.

The objectives of the PSU Program are to:

• support the introduction of air conditioned trains into service

• provide additional power to operate trains on the network

• improve service reliability by reducing the risk of disruption to rail services.

The delivery of the PSU Program was transferred to Transport for NSW in 2012.

1.3 The proposal

The proposal involves constructing and operating a new substation to the east of the Sydney Trains rail corridor adjacent to the existing Leumeah Substation. The new substation would supply traction power to the Main Southern Line.

The proposal also involves installing service connections to the new substation, upgrading the existing access road and decommissioning Leumeah Substation.

The location of the proposal is shown in Figure 1.1. A description of the proposal is provided in section 5.

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Figure 1.1 Location of the proposal

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1.4 Structure of the REF

The structure and content of the REF is summarised in Table 1.1.

Table 1.1 Structure and content of the REF

Section DescriptionSection 1 – Introduction An introduction to the REF.

Section 2 – Location and setting

A description of the location, site and study area.

Section 3 – Statutory framework

An overview of the statutory requirements for the proposal, including the requirements of relevant environmental planning instruments and legislation.

Section 4 – Strategic context, need and options considered

An overview of the strategic context for the proposal, need, and the proposal development process.

Section 5 – Description of the proposal

A description of the proposal.

Section 6 – Community and stakeholder consultation

A summary of the consultation process and the key issues raised.

Section 7 – Environmental impact assessment

An assessment of the potential environmental impacts, including summaries of specialist reports prepared for the proposal.

Section 8 – Environmental management and mitigation

An outline of the requirements for the proposal’s environmental management plan, and a summary of the mitigation measures identified by the REF.

Section 9 - Conclusion A conclusion to the REF.

Section 10 – Reference list

Provides a list of references for the REF.

1.5 Scope and methodology

1.5.1 Scope and purpose of the REF

For an activity subject to Part 5 of the EP&A Act, section 111 of the Act imposes a duty on a determining authority to ‘examine and take into account to the fullest extent possible all matters affecting or likely to affect the environment by reason of that activity’. Determining authorities make a determination about whether a proposal can proceed, and on what basis.

The purpose of this REF is to summarise the results of the environmental impact assessment for the proposal and provide information about the proposal as an input to the determination process. Transport for NSW (as the determining authority) will consider the findings of the REF as part of the determination process.

In summary, the REF will assist Transport for NSW to undertake the following:

• determine whether the proposal should be approved, taking into account to the fullest extent possible all matters affecting or likely to affect the environment (in accordance with section 111 of the EP&A Act)

• determine whether the proposal is likely to have a significant effect on the environment or significantly affect threatened species, populations or ecological communities or their habitats

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• develop appropriate conditions (based on the mitigation measures within the REF) to be attached to any approval granted.

Clause 228 of the Environmental Planning and Assessment Regulation 2000 (the Regulation) lists, for the purposes of Part 5 of the EP&A Act, the factors to be taken into account when considering the likely impact of an activity on the environment. Appendix A considers the potential impacts of the proposal against these factors.

For the purposes of this REF, the following definitions have been applied:

• The ‘proposal’ refers to the construction and operation of Minto Substation and associated connection works and the decommissioning of Leumeah Substation.

• The ‘substation’ refers to the proposed Minto Substation.

• The ‘proposal site’ is defined as the immediate location of the substation, and includes the area around it that has the potential to be directly disturbed during construction. It includes the footprint for the substation and a buffer area that would potentially be impacted by construction activities, the location of the decommissioning works and construction compound.

• The ‘study area’ consists of land in the vicinity of, and including, the proposal site. The study area is the wider area surrounding the proposal site, including land that has the potential to be indirectly impacted by the proposal (for example, as a result of any noise impacts).

Other terms are defined in the glossary at the beginning of the REF.

1.5.2 Methodology

The REF has been prepared in consultation with relevant stakeholders, including the design team (GHD), Transport for NSW, and other relevant technical advisors and agencies. Preparing the REF has involved the following tasks:

• attending a project inception meeting/briefing and project risk workshop

• receiving relevant information from Transport for NSW

• a site visit, including a site review by a GHD ecologist

• consultation and liaison with key stakeholders

• reviewing specialist assessments being undertaken as part of the design process (including the contamination, geotechnical and electromagnetic fields assessments), and incorporating relevant information in the REF

• a qualitative desktop assessment of other potential impacts, including reviews of existing information and database searches

• identifying mitigation measures to manage the impacts identified

• addressing the requirements of Part 5 of the EP&A Act and clause 228 of the Regulation.

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2 Location and setting

This section provides information on the location of the proposal, the proposal site and its surrounds (the study area).

2.1 Site location and description

The proposal site, which is shown in Figure 1.1, is located within the suburb of Minto, in the Campbelltown local government area (LGA). The proposal site is located on lot 6, deposited plan (DP) 253660 and partly within lot 607, DP 1186540, which are owned by Sydney Trains. The proposal site has an area of about 4,420 square metres, and approximate dimensions of 26 by 170 metres.

The proposal site is located on the eastern side of the Main Southern Line rail line, about 1.5 kilometres south of Minto Station and 1.3 kilometres north-east of Leumeah Station. The site is currently unused, and is vegetated with a mix of regrowth vegetation, grasses, weeds, scattered native shrubs and scattered small trees.

The pipeline connection to Sydney Water’s potable water network would be located within lot 13 DP 1051906 (which is privately owned industrial land) and within the road reserve of Pembroke Road (a classified road managed by Roads and Maritime Services). The wastewater pipeline and electrical connections would be located within land owned by Sydney Trains (refer to Figure 5.1).

Stormwater at the proposal site would be managed through the use of a swale drain along the eastern side of the site. Stormwater would be captured in this drain and redirected either north to McBarron Creek, or to the south to an existing swale drain within the rail corridor. This swale drain would be mainly located within Lot 6 DP 253660 (refer to Figure 5.1).

Access to the proposal site is via an existing unsealed (gravel) rail corridor access road, which runs along the length of the rail corridor. The access road connects to the external road network via O’Sullivan Road, near Leumeah Station (to the south of the proposal site).

2.2 The study area and site context

Key features of the study area are shown in Figure 2.1. The proposal site is located in an area which is dominated by industrial and infrastructure land uses.

Land uses immediately surrounding the proposal site include:

• industrial development associated with the Austrack Business Park to the east

• railway uses, including tracks and rail corridor, are located to the north, south and west.

The adjacent rail lines consist of the two main running tracks for the Main Southern Line (one running in a northerly direction towards Central Station and one running in a southerly direction towards Campbelltown Station), as well as the single bi-directional track Southern Sydney Freight Line on the western side of the corridor.

Land uses in the broader area include:

• Pembroke Park is located about 130 metres to the north

• a vehicle processing facility owned by Prixcar Services is located on the western side of the rail corridor at Culverston Road

• residential land uses in the suburb of Leumeah, with the nearest residences located about 40 metres east of the proposed pipeline and about 400 metres east of the proposed substation.

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Figure 2.1 Land use and key features of the study area

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3 Statutory framework

This section provides an overview of the statutory framework relevant to the proposal, including the assessment requirements, relevant environmental legislation and planning instruments.

3.1 Environmental Planning and Assessment Act 1979

The EP&A Act and the Regulation provide the statutory basis for planning and environmental assessment in NSW. The EP&A Act provides the framework for environmental planning and development approvals and includes provisions to ensure that the potential environmental impacts of a development are assessed and considered in the decision making process.

3.1.1 Application of Part 5 of the EP&A Act

As a result of the application of the State Environmental Planning Policy (Infrastructure) 2007 (the Infrastructure SEPP), the proposal is subject to Part 5 of the EP&A Act (refer section 3.2.1). In relation to Part 5 activities, section 111 of the EP&A Act imposes a duty on a determining authority to ‘examine and take into account to the fullest extent possible all matters affecting or likely to affect the environment by reason of that activity’.

Section 110(1) defines a determining authority as ‘a Minister or public authority and, in relation to any activity, means the Minister or public authority by or on whose behalf the activity is or is to be carried out or any Minister or public authority whose approval is required in order to enable the activity to be carried out’.

In accordance with clause 79 of the Infrastructure SEPP, Transport for NSW is the proponent and determining authority for the proposal. This REF has been prepared to satisfy Transport for NSW’s requirements under the EP&A Act.

3.2 Environmental planning instruments

The environmental planning instruments that are relevant to the approval and assessment of the proposal are considered below.

3.2.1 State environmental planning policies (SEPPs)

State Environmental Planning Policy (Infrastructure) 2007

The Infrastructure SEPP outlines the permissibility and development controls for infrastructure works and facilities. Clause 79 of the Infrastructure SEPP outlines which railway infrastructure facilities are permissible without the need for development consent under the EP&A Act. As the proposal meets the definitions of rail infrastructure facilities provided by clause 78, it is permissible without consent.

Clauses 13 to 16 of the Infrastructure SEPP outline the requirements for consultation with councils and other public authorities for infrastructure development carried out by or on behalf of a public authority. The proposal would not trigger any of these requirements, and therefore consultation with Campbelltown City Council (Council) and other public authorities is not required under the Infrastructure SEPP. However, relevant agencies have been, and will continue to be, consulted in relation to the proposal. Further details of the consultation process are provided in section 6.

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3.2.2 Sydney Regional Environmental Plan No. 20 – Hawkesbury Nepean River (No 2 – 1997)

As of 1 July 2009, regional environmental plans (REPs) are no longer part of the hierarchy of environmental planning instruments in NSW. All REPs are now deemed State environmental planning policies. The proposal is located on land to which Sydney Regional Environmental Plan No. 20 – Hawkesbury Nepean River (No.2 – 1997) (SREP 20) applies. The aim of SREP 20 is to protect the environment of the Hawkesbury Nepean River System. The proposal does not require consent under SREP 20. However, under clause 4(1)(b), the matters listed under clauses 5 and 6 that apply to a proposal must be considered by a public authority carrying out development that does not require consent. Table 3.1 addresses these matters as they apply to the proposal.

Table 3.1 Consideration of the provisions of SREP 20

Consideration CommentClause 5

The aim of this plan which is to protect the environment of the Hawkesbury-Nepean River system by ensuring that the impacts of future land uses are considered in a regional context

This REF assesses the impacts of the proposal and takes into account the potential regional impacts. The proposal is not anticipated to have any significant and/or regional level impacts.

The strategies listed in the Action Plan of the Hawkesbury-Nepean Environmental Planning Strategy

The proposal is not inconsistent with any of the strategies listed in the Action Plan.

Whether there are any feasible alternatives to the development or other proposal concerned

Alternatives to the proposal have been considered and are outlined in section 4.4 of the REF.

The relationship between the different impacts of the development or other proposal and the environment, and how those impacts would be addressed and monitored.

Section 7 of the REF assesses the potential impacts of the proposal and identifies mitigation measures to minimise these impacts.

Clause 6

Total catchment management The proposal would result in only a minor increase in hard stand areas and would not result in any significant impacts on the catchment.

Environmentally sensitive areas The proposal would remove a small area of highly disturbed and modified regrowth vegetation and would therefore not result in a significant reduction in the extent or occurrence of the community within the locality. Further information is provided in section 7.2.3.

Water quality Mitigation measures would be implemented to minimise potential impacts on water quality (refer section 7.1.3).

Water quantity The proposal would not result in any changes to surface water or groundwater flow characteristics. Ground levels would be returned to existing condition after construction.

Cultural heritage The proposal would not result in any impacts to listed Aboriginal of non-Aboriginal heritage items, places or sites.

Flora and fauna Potential flora and fauna impacts are considered in section 7.2.3.

Riverine scenic quality Not applicable

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Consideration CommentAgriculture/ aquaculture and fishing Not applicable

Rural residential development Not applicable

Urban development Not applicable

Recreation and tourism Not applicable

Metropolitan strategy Not applicable

3.2.3 Local environmental plans

The Campbelltown (Urban Area) Local Environmental Plan 2002 (the LEP) applies to the land in which the proposal site is located. The proposal site is located within land zoned 5(a) Special Uses A (Railways), while the proposed water pipeline would also be located within the 4(a) General Industry and 5(b) Special Use – Arterial Road zones.. The zone provisions provide that utility installations can be carried out in all three zones without consent. As the proposal meets the LEP definition of a ‘utility installation’ it is permitted without consent under the LEP.

3.3 Other legislative considerations

3.3.1 NSW legislation

Other environmental legislation that is directly relevant to the approval and/or assessment of the proposal is considered in Table 3.2.

Table 3.2 Consideration of relevant NSW legislation

Act Potential approval requirement for rail infrastructure

Relevance to the proposal

Protection of the Environment Operations Act 1997

An environment protection licence (EPL) is required for scheduled activities or scheduled development work.

The proposal is not considered to be a scheduled activity under Schedule 1 of the POEO Act and therefore an EPL is not required for construction. Sydney Trains currently holds an EPL for the operation of the rail network (EPL no. 12208). The proposal would comply with the requirements of this licence as well as the general obligations of the POEO Act. No variation of this licence is considered to be required.

Roads Act 1993 Approval under section 138 for works to a public road.

The proposal would involve works within the road reserve of Pembroke Road (a classified road) and therefore an approval under section 138 of the Roads Act would be sought.

National Parks and Wildlife Act 1974

A heritage impact permit under section 87 of the Act to harm or desecrate an Aboriginal heritage object.

There are no listed Aboriginal heritage items or places located on or in the vicinity of the site. As a result of the existing levels of site disturbance, there is minimal likelihood that unknown items of Aboriginal heritage significance would be present.

Further information is provided in section 7.8.

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Act Potential approval requirement for rail infrastructure

Relevance to the proposal

Water Management Act 2000 and Water Act 1912

Licence for interception of groundwater

Excavation work would be undertaken as part of the proposal, and it is possible that groundwater would be intercepted. Subject to confirmation with the Office of Water, if Transport for NSW (as determining authority) determines that the proposal is a ‘defined minimal impact aquifer interference activity’, a license would not be required.

Heritage Act 1977 Approval under section 57(1) for works to a place, building, work, relic, moveable object, precinct, or land listed on the State Heritage Register.

An excavation permit under section 139 to disturb or excavate any land containing or likely to contain a relic.

There are no listed non-Aboriginal heritage items located on or in the vicinity of the site. As a result of the existing levels of site disturbance, there is minimal likelihood that unknown items of historic significance or relics would be present.

Further information is provided in section 7.8.

Threatened Species Conservation Act 1995

The TSC Act lists threatened species, populations or ecological communities to be considered in deciding whether there is likely to be a significant impact on threatened biota, or their habitats. If any of these could be impacted by the project, an assessment of significance that addresses the requirements of section 5A of the EP&A Act must be completed to determine the significance of the impact.

The flora and fauna assessment has addressed these requirements. Further information is provided in section 7.2. The proposal would not result in any significant impacts to listed flora, fauna or communities, and a species impact statement is not required.

Noxious Weeds Act 1993

Under Part 3 Division 1 of the Act, all private landowners, occupiers, public authorities and Councils are required to control noxious weeds on their land.

A number of noxious weeds were recorded within the proposal site. Further information is provided in section 7.2.2.

3.3.2 Commonwealth legislation

Commonwealth Environment Protection and Biodiversity and Conservation Act 1999

An Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) protected matters search was undertaken on 24 February 2014 for an area within a one kilometre radius of the proposal site. The results of the search are summarised in Table 3.3. As no impacts are predicted, an approval under the EPBC Act would not be required.

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Table 3.3 EPBC Act protected matters search results

EPBC Act Protected matter

Matter located within search radius

Comments Potential impact

World Heritage Property None The proposal would not impact on any World Heritage properties.

None

National Heritage Places None The proposal would not impact on any National Heritage properties.

None

Wetlands of international significance (Ramsar sites)

None The proposal would not impact on any wetlands.

None

Threatened ecological communities

Three The proposal would not impact on any threatened ecological communities.

None

Threatened species 27 species including five birds, three frogs, seven mammals, 11 plant species and one reptile

The proposal is located within a disturbed urban area with limited vegetation (native or otherwise) that would provide habitat for threatened or migratory species.

None

Listed migratory species 12 species including one migratory marine birds, seven terrestrial species, four wetlands species

None

Nuclear actions None The proposal does not involve a nuclear action.

None

Commonwealth Marine Areas

None No Commonwealth marine areas are located within the search radius.

None

Great Barrier Reef Marine Park

None The Great Barrier Reef Marine Park is outside the search radius.

None

Commonwealth land One Commonwealth property

The proposal would not directly or indirectly impact on any Commonwealth land.

None

A water resource, in relation to coal seam gas development and large coal mining development

Not relevant Not relevant None

3.4 Summary of approval requirements

As a result of the application of the Infrastructure SEPP the proposal does not require development consent and it is subject to assessment and determination under Part 5 of the EP&A Act. An approval under section 138 of the Roads Act would need to be obtained from Roads and Maritime Services prior to works commencing within the road reserve of Pembroke Road.

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4 Strategic context, need and options considered

This section provides background information on the strategic and planning context for the proposal, why it is needed, and the options considered.

4.1 Strategic context and need for the proposal

4.1.1 Strategic context

The NSW Long Term Transport Master Plan (Transport for NSW, 2012b) provides a framework for addressing transport challenges across NSW over the next 20 years. The master plan is designed to guide the prioritisation of available funds to deliver maximum benefits to NSW. The master plan includes 220 short, medium and long-term actions that are focused on transforming the NSW transport system.

One of the actions within the master plan is to ‘Expand the Sydney Trains fleet to include modernised double-deck and new single-deck trains’. Within the next 10 years, about 52 per cent of the existing fleet would be replaced, and the size of the fleet would increase by about 28 per cent. This would involve the introduction of new rolling stock, which includes an air conditioned fleet.

The proposal involves the provision of infrastructure required to meet the needs of the expanded Sydney Trains fleet, and is therefore consistent with the master plan.

4.1.2 Need for the proposal

To meet the needs of the expanded and air conditioned rail fleet and the operation of the 2016 timetable, an increase in the power supply on the Sydney Trains electrical network is required. A power study (ER0293) undertaken as part of the PSU Program (RailCorp, 2011) identified that a new substation was required in the Minto area to:

• provide additional capacity on the Main Southern Line

• assist with providing power to the South West Rail Link

• reduce the loading on adjacent substations

• allow for the decommissioning of the existing Leumeah Substation, which has reached the end of its recommended economic life.

4.2 Proposal development process

The power study report identified that the best way to address the identified needs would be to develop two new substations between Campbelltown and Glenfield South substations, at Minto and Ingleburn (RailCorp, 2011). This would avoid poor voltage regulation on the railway tracks between Minto and Leumeah.

The location for the proposal was selected because it provides an opportunity to reuse existing facilities at Leumeah Substation, including the signal air gap, the 1500 volt feeding structures and other interfaces to the rail power system.

GHD was engaged by TfNSW to prepare concept designs for these substations, as well as a substation at Guildford. The concept design process also involves an options review, geotechnical and environmental impact assessment process. The results of the environmental

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impact assessment of the proposal to construct and operate the Minto Substation are summarised in this REF.

The Ingleburn and Guildford substations are subject to separate assessment and approval.

4.3 Objectives of the proposal

The objectives of the proposal are to:

• establish a new traction substation at Minto in accordance with the findings of the power study

• ensure the reliable operation of Waratah trains, and transition to an air-conditioned fleet

• provide additional capacity and reduce loading on adjacent substations, allowing the existing Leumeah Substation to be decommissioned

• achieve regulatory compliance and meet all Asset Standards Authority and Australian Standards.

4.4 Options considered

A summary of the main options considered as part of the development of the proposal is provided below. Further information on the detailed options that have been developed and assessed is provided in the Minto Substation Site Options Report.

The ‘do nothing’ option

The ‘do nothing’ option involves not undertaking the proposal. Under this option, no new substation would be constructed at Minto. This option is not considered to be acceptable, as it would result in the Sydney Trains electrical network not being able to meet the needs described in section 4.1. Studies have already shown that the existing power supply network cannot meet the future needs of the Sydney Trains network.

4.4.1 Site location options

Location option 1

Option 1 involved:

• constructing a new substation at Minto, about 350 metres south (along the rail corridor) of the Minto Sectioning Hut

• decommissioning the Minto Sectioning Hut

• converting Leumeah Substation into a sectioning hut.

• This option was modelled as part of the power study, and rejected by the study based on:

• The poor voltage regulation that would result between Minto and Leumeah

• The requirement for an additional substation between Leppington and Glenfield South substations to support this option.

Location option 2

Option 2 involved:

• constructing a new substation at Minto, about 60 metres to the north (along the rail corridor) of the Minto Sectioning Hut

• decommissioning the Minto Sectioning Hut

• decommissioning Macquarie Fields Substation.

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This option was modelled as part of the power study, and rejected by the study based on the poor voltage regulation that would result on the railway tracks between Leumeah and Minto

Location option 3

Option 3 involved:

• constructing a new substation at Minto, about 245 metres north (along the rail corridor) of Leumeah Substation

• decommissioning Leumeah Substation.

This option was modelled as part of the power study. The modelling identified that this option would meet the requirements of the proposed upgrade projects on the Main Southern Line.

Location option 4

Option 4 involved:

• constructing a new substation at Minto, about 70 metres north (along the rail corridor) of Leumeah Substation

• decommissioning Leumeah Substation and reusing as much of the existing power infrastructure as possible.

This option was modelled as part of the power study. The modelling identified that this option would meet the requirements of the proposed upgrade projects on the Main Southern Line.

4.4.2 Stormwater discharge options

Two options for stormwater discharge (including roof water and clean water from the oil-water separator) have been investigated. The first option would involve constructing a swale and pipe to McBarron Creek, with the discharge point located in the creek close to the existing concrete floodway. The second option would be to discharge stormwater to Council’s existing stormwater drainage system.

Following consultation with Council, it was found that the nearest connection points are located either on Pembroke Road or on the western side of the rail corridor. Connection to the Pembroke Road infrastructure would involve a long pipeline (on a similar alignment to the proposed potable water pipeline) and pumps due to changes in elevation. Connection to the infrastructure on the western side of the corridor would involve significant works to cross the rail corridor. For these reasons, the preferred option would be to construct a new swale and pipe to discharge to McBarron Creek.

It is likely that the ground levels are such that discharge to the creek is feasible. However, this would be confirmed following detailed design and further liaison with Council.

4.5 Preferred option for the proposal

4.5.1 Location

Location option 4 was chosen as the preferred location for the proposal as it:

• allows the existing ‘air gap’ located in the vicinity of the existing Leumeah Substation (where the train’s pantograph changes from section of wire to another) to be reused, eliminating the need to re-design and construct a new air gap

• provides an opportunity to reuse the existing 1500 volt (V) overhead wiring feeding structure (located directly adjacent to Leumeah Substation), which eliminates the need to re-design and construct a new overhead wiring structure

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• allows the rectifier transformer at Leumeah Substation to be successfully decommissioned

• provides a lower cost solution compared with location option 3.

4.5.2 Stormwater discharge options

The preferred stormwater discharge option is to construct a new swale and pipe to discharge to McBarron Creek. Further studies would be undertaken during detailed design to confirm that this option is feasible.

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5 Description of the proposal

This section provides a description of the proposal, based on the design work undertaken to date. This includes an overview of the key components and design features of the substation, and a description of how it would be constructed and operated.

5.1 The proposed substation

5.1.1 Substation building and equipment

The proposal would comprise of a substation building with external, bunded high voltage (HV) enclosures to house the electrical equipment and associated facilities.

The maximum external height of the building would be about five metres above the ground level. The total size of the substation building would be about 40 metres long by five metres wide. The substation would have a floor area of about 200 square metres.

In-ground high voltage cable pits would be installed external to the building. They would connect by conduit to terminate through the cable chamber floor slab. All other electrical connections would be above ground within the cable chamber area and the switch room.

The switch room would have a height of approximately 3.5 metres and four metres. The switch room would be accessed by doors located on the western side of the building via a steel framed walkway. Two roller doors, also on the western façade, would provide access for the delivery of equipment. The 1500 volt switch room would be a separate module within the building, with a separate external access off a walkway on the eastern side of the building. The alternative exit door would open into the switch room, but would only be used in emergency situations.

Three external bunded yards would be located at ground level within the proposal site, to the north and south of substation building. Two of the yards would contain a five MW 33 kV/600 V rectifier transformer. The reactor would be located at the southernmost yard. The yard to the north containing the rectifier transformer would be about six by six metres in size. The two bunded areas to the south, containing one rectifier transformer and one reactor, would be about 6x12 metres in size, with a total area of about 108 square metres for the external transformer and reactor yards.

The substation building and bunded yards would contain the following facilities and equipment:

• two 5.35 MW 33 kV/600 V rectifier transformers

• two 5 MW 1500 V DC rectifiers

• one 0.5 millihenry 6300 amp reactor

• two 3 panel 33 kV AC switchboards, consisting of 3 x 33 kV AC circuit breakers each

• 1500 V DC circuit breakers

• provision for one 1500 DC cubicle

• battery bank and charger

• changeover panel

• distribution boards

• administration office and air conditioning plant

• staff toilet and hot water unit.

• Other ancillary equipment

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The external bunded yards containing the rectifier transformers and reactor would be connected to a common oil-water separator system, via flame trap pits within each bund. The yards would be designed to ensure that any oil spills are contained on-site within the bund.

The yards would incorporate Transport for NSW standard’s parallel footing beam plinths extending to the western wall, and fibreglass reinforced plastic grating installed flush with the top of the bund to provide an all-weather maintenance platform.

Figure 5.1 provides an overview of the layout of the proposal. Further information is provided by the drawings included in Appendix B.

5.1.2 Building design and form

The switch room would consist of a precast or cast in-situ concrete floor slab supported on concrete piers, with conduits connections to the external high voltage pits. This slab would form the roof of the cable chamber located below.

A fabricated steel framed support structure would be constructed over the cable chamber slab to support the switch room floor slabs.

The walls of the switch room would comprise load-bearing precast concrete panels with a tile facing resembling brickwork. These walls would have an anti-graffiti finish. The panels would be supported at cable chamber level, and would extend to roof level in single piece sections. The roof of the substation would consist of a galvanised steel frame supported by the wall panels and exposed internally (i.e. within the switch room), with the possible exception of a suspended plasterboard ceiling over the circuit breakers. The roof of the substation would be made of sheet metal deck, with insulation affixed to the underside.

The design of the proposed substation would continue to be refined during future design phases. The final design of the substation would integrate all relevant considerations, including:

• visual considerations

• functional and operational needs and requirements

• access and maintenance

• security.

The substation would be naturally ventilated, with louvres on the eastern and western facades to provide convection air flow across the building. Ventilation of the battery room would be determined during the detailed design stage.

5.1.3 Security fencing and lighting

The substation would be enclosed on three sides with a three metre high steel post and weldmesh fencing. The western side of the substation would be unfenced (i.e. the substation building’s western wall would form the western boundary of the substation site). Access along the rail corridor would be maintained.

The substation building would have wall mounted security lighting above each external door opening for night-time illumination. External yards lighting would be manually switched for night maintenance as required.

5.1.4 Operational site access and car parking

Vehicular access to the substation would be via the existing access road which runs within the railway corridor to the east of the rail lines. This access road can be accessed via locked gates off the access road to the sporting facilities located to the north of Wests League Club (accessed via the roundabout at O’Sullivan Road/Old Leumeah Road near Leumeah Station).

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This access road would be upgraded as part of the proposal to provide sufficient access to the proposal site during both construction and operation. The upgrade of this road would potentially involve regrading individual sections of the road, and sealing the entire length of the road between the access gate and the substation. To facilitate this, an existing aerial feeder located along the road would be relocated below the ground (refer to section 5.1.6).

Some upgrade works would be required at the existing access gate to make the gate suitable for access by large vehicles. These works would generally involve straightening the road at this location.

Access would be maintained along the rail corridor for other users.

A vehicle access gate and an adjacent personnel gate would be provided at the southern end of the site.

Parking for at least one vehicle would be provided within the site, adjacent to the southern transformer yard.

The substation building would be normally accessed via:

• entry to the switch room via external doors on the eastern side of the substation

• equipment access to the building would be via metallic roller doors on the western side.

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Figure 5.1 Proposed substation, connections to existing systems and construction compound

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5.1.5 Chemical storage

The following quantities of oil would be used within the oil-cooled transformers on-site, which would be located within the bunded areas:

• about 3,300 litres of oil in the reactor

• about 5,000 litres of oil in each of the two rectifier transformers.

The bunded areas would be designed and constructed in accordance with relevant Australian Standards. Each transformer would be positioned within its own bunded yard, which would be connected via complying sump and flame-trap arrangements to the common oil-water separator located at the northern end of the substation. The oil-water separator would collect all run off from the outdoor yards. The water would then be treated to separate oil and water. Oil would be removed from site for disposal at an appropriately licensed facility. Clean water from the separator would be discharged to McBarron Creek to the north (refer to section 5.1.7)

5.1.6 Connection to existing feeders and overhead wiring system

Relocation of existing feeder

As mentioned in section 5.1.4, the existing feeder within the rail corridor is required to be relocated to below ground to allow the access road to be upgraded. This would involve relocating the feeder to a trench between pole 209C (12 metres south of the Leumeah Substation) and pole 223 (30 metres south of the access gate near Leumeah Station).

Connection to existing feeders

The new substation would be connected to both the existing aerial feeder to the north of the substation, and the relocated feeder to the south. Connection of the substation to the existing aerial 33 kV feeders to the north of the substation would involve constructing a new 33 kV pole located about 100 metres north of Leumeah Substation. The feeder would then be trenched between this pole and the substation. The feeder would also be trenched from the substation to the relocated feeder (in trench) to in the vicinity of the existing pole 209C.

The location of the new poles and the new alignment of the feeders are shown in Figure 5.1.

Connection to overhead wiring system

Connection to the overhead wiring system would also be required. This would be achieved by installed cables in trenches from the proposed substation to the overhead wiring structure (with the code S51+314), which is located 20 metres south of the proposal site adjacent to the existing Leumeah Substation. For this connection, one feeder would be required to cross the rail corridor via a under track crossing to be constructed. This crossing would be located about 20 metres to the south of the proposed substation, adjacent to the existing Leumeah Substation.

5.1.7 Service connections and relocation

Service connections

Potable water and waste water

The proposal would also involve connections to Sydney Water’s wastewater and potable water networks.

A wastewater pipeline would be constructed to connect to the existing Sydney Water wastewater main, which is located about 330 metres to the south of the proposal site.

A potable water pipeline would be constructed to connect to the existing Sydney Water potable water main located on Pembroke Road. The pipeline alignment would extend about

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330 metres to the south of the proposal site along the rail corridor. The alignment would then turn east and travel through an existing easement (to be confirmed with Sydney Water) to Pembroke Road. The alignment would then turn north within the eastern side of the Pembroke Road road reserve, where it would connect to the existing main located about 220 metres to the north.

The proposed alignments of these pipelines, which would be at most 100 millimetres in diameter and constructed of polyvinyl chloride or copper are shown in Figure 5.1.

Stormwater

Stormwater from the proposal site would be managed by constructing a new grass swale drain along the eastern side of the proposal site. This swale would capture any overland flow from the east. The swale would have two discharge locations due to changes in topography in the vicinity of the proposal site:

• into McBarron Creek to the north - this would involve continuing the swale drain from the proposal site all the way to the proposed discharge location at the creek

• into an existing swale drain within the rail corridor to the south.

The proposed alignment of the swale drain is shown in Figure 5.1. The swale drain would be about two metres wide.

A discharge point for the clean water originating from the oil and water separator is also proposed. This would be constructed along the alignment of the swale drain and would be buried below the drain.

The discharge location at McBarron Creek would be finalised during the detailed design phase. The discharge structure would be designed to minimise the potential for erosion and sedimentation impacts.

Service relocations

Where practicable, relocation of services would be avoided. Communication and signalling cabling currently runs along the rail corridor. Some adjustments may be required in the vicinity of the proposal site, particularly in the vicinity of trenching activities. Such relocations would be confirmed during the detailed design phase in consultation with Sydney Trains.

The proposal is not expected to require any relocation of non-railway related services. In the event that detailed design identifies the need for any relocations, all relocations would be undertaken in consultation with the utility provider.

5.2 Decommissioning of Leumeah Substation

Following commissioning of the proposal, the existing Leumeah Substation (located about 10 metres south of the proposed substation) would be decommissioned. The decommissioning of this substation would involve the following works:

• removal of all redundant electrical equipment both within and external to the substation building

• removal of high voltage cables and cable trays

• other services (including the light and power conduits) would be capped off and retained

• remediation (if required) of any disturbed areas where hazardous materials are potentially present inside or outside the substation building.

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The substation building and the security fencing and gates would remain in place (i.e. not demolished). Should these structures need to be demolished at a later date, further environmental assessment would be required.

As part of the decommissioning works, the spans of the existing 33 kV feeder would be decommissioned and removed. The location of the feeder to be removed is shown in Figure 5.1. Some 1500 V cables would also be removed. The exact location of these cables would be confirmed during designed design. These cables would be located in the vicinity of the existing substation.

5.3 Construction information

5.3.1 Indicative construction activities

Construction would involve the following indicative works:

• order off-site prefabricated items

• site establishment:

– services relocation or protection works

– establishment of the construction compound (refer section 1.1.1)

– installation of safety fencing around the proposal site

– installation of erosion control measures

– vegetation removal and/or trimming, as required

• upgrade access road and relocated the existing feeder to below ground

• enabling works:

– install two new poles for realignment of 33 kV power supply

– install conduits (in trenches) to rail corridor for connections from the substation to the existing feeders

• benching of the site to provide a uniform east to west cross fall, including a low retaining wall on the eastern and northern sides

• trenching of water and wastewater mains from the proposal site to the connection points – trenches would be about 600 millimetres wide, with the depths varying depending on local ground conditions or other site requirements (e.g. clearance below access tracks)

• piling works and site excavation for in-ground services:

– use of piling rigs to construct the piles for the ground slab

– excavate building and bund yard areas for construction of in-ground pits and conduits

– excavate for oil/water separator tank and related services

• substation construction - involves delivery of the precast ground slabs, erecting the steel framed support structure, placing the floor slab, erecting the precast wall panels and installing the steel roof framing and roof sheeting

• electrical works and fit out, including connection to the electrical network - connection to the overhead wiring structures would require some trenching activities, the size and location of trenches would be confirmed during detailed design

• decommissioning of Leumeah Substation and associated spans of 33 kV feeders and 1500 V cables as identified during detailed design

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• restoration of disturbed areas and landscaping as required

• site clean-up.

Excavation would generate up to about 1,400 cubic metres of spoil which would need to be removed from the site.

5.3.2 Construction workforce

Construction of the proposal would involve a maximum workforce of about 20 people.

5.3.3 Equipment

Plant and equipment used to construct the proposal may include (but not be limited to):

• water cart

• concrete saws

• backhoes

• hand tools

• jack hammers

• light commercial and passenger vehicles

• mobile crane

• on-site crane

• low loader

• tip trucks

• concrete agitator trucks

• concrete pumps

• air compressor

• generators

• road sweepers

• large delivery trucks

• piling rig

5.3.4 Construction compound, access and vehicle movements

Construction compound

The construction compound would be located about 40 metres to the south of the proposed substation within a cleared section of the rail corridor. The construction compound would be positioned within this area to maintain access along the rail corridor for Sydney Trains personnel and also for vehicles needing to access the proposal site.

Once a contractor has been selected, the location of the construction compound would be reviewed. Should the preferred location differ from the location considered by this REF, consultation would be undertaken with Transport for NSW to confirm the suitability of the location and whether any additional environmental assessment is required.

The construction site and compound would be securely fenced with temporary fencing. Signage would be erected advising the general public of access restrictions. Upon completion of construction, the temporary site compound, work areas and any stockpiles would be removed and the site/s would be cleared of all rubbish and materials, and then rehabilitated.

Construction access and parking

Construction vehicles would access the site via the existing access road located within the rail corridor, off the access road to the sporting fields near Leumeah Station. The access road would be upgraded early in the construction program to provide suitable access for large construction vehicles.

Construction vehicles would park within the construction compound or within the construction area at the substation site. Additional Sydney Trains land located to the north of the compound could also be used as overflow parking if required. Parking would be limited to previously cleared areas.

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Access to private property would be required to construct (trench) the water pipeline. This access would be organised by the contractor. Works would also occur along Pembroke Road to install the pipeline. These works would be located away from the operational roadway, within the grassed verge.

Vehicle movements

Construction would generate heavy vehicle movements associated with the transportation of construction machinery, equipment and materials to the site. Light vehicle movements would be associated with employees and smaller deliveries.

The amount of construction vehicle movements would depend on the final design and method of construction. The maximum daily movements would be about:

• two heavy vehicles during the construction period – resulting in four movements per day

• eight heavy vehicles during concrete pours – resulting in 16 movements per day

• two heavy vehicles during the construction of pipeline for delivery of pipe sections) – resulting in four vehicle movements per day

• four to six heavy vehicles for the delivery of precast components – resulting in eight to 12 movements per day

• 10 heavy vehicles for the upgrade of the access road – resulting in a maximum of 20 movements per day

• 10 heavy vehicles for decommissioning works – resulting in a maximum of 10 movements per day for a period of up to five days

• 20 light vehicles during the construction period – resulting in 40 movements per day.

The delivery of some equipment, such as transformers, would be considered oversized deliveries. These deliveries would be undertaken in accordance with the requirements of relevant authorities.

5.3.5 Construction timing, staging and work hours

Construction timing

It is anticipated that construction of the proposal would commence in mid to late 2015, and would take around 12 months to construct. The main civil construction activities would be completed within nine months, while the fit out of the substation would take three months. The proposed substation would be required to be operational by September 2016. The decommissioning works at the existing Leumeah Substation would take up to about three to four weeks.

Work hours

Construction would occur during the standard hours set out in the Interim Construction Noise Guideline (DEC, 2009):

• Mondays to Fridays between 7 am and 6 pm

• Saturdays between 8 am and 1 pm

• no work would occur on Sundays or public holidays.

Out of hours works (including work on Sundays) would be limited mainly to scheduled track possession periods, however some out of hours works would be required outside of these periods. Works that may need to be undertaken during track possessions and out of hours include connection to the overhead wiring system, installation of certain electrical equipment, and delivery of oversized equipment.

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If out of hours work is required, the contractor would obtain approval from Transport for NSW. All of out of hours work would be undertaken in accordance with the Construction Noise Strategy (Transport for NSW, 2012a).

Track possession periods

The proposal involves some works during track possession periods, including connection works and the decommissioning of Leumeah Substation. General building works would not require any track possession periods. A number of predetermined possession periods would be available. In the event that additional special possessions are required, these would be arranged in consultation with Sydney Trains. Controlled power outages, which may need to occur out of hours, would also be required during construction.

5.4 Operation of the proposal

The main function of the substation would be to convert the incoming 33 kV power supply to a form which can be used by rolling stock on the Sydney Trains network. The substation would operate 24 hours a day to ensure that power supply is provided to the network at all times.

No permanent staff members would be located on-site.

Maintenance activities would involve about two visits each month. These visits would generally consist of one utility vehicle accessing the site. In emergency situations additional vehicles may need to access the site.

As a result of the proposed upgrades to the access road, the site would be accessible by large vehicles. There is adequate space for large vehicles to turn around to the south of the proposed substation.

5.5 Sustainability

A sustainability assessment was undertaken as part of the design process in March 2014 in accordance with the Transport for NSW Sustainability Design Guidelines version 3.0 (Transport for NSW, 2013). Under the guidelines, the proposal is considered to be a ‘maintenance facility’.

A number of themes were considered in the assessment including:

• energy and greenhouse

• climate resilience

• materials and waste

• biodiversity and heritage

• water

• pollution control

• community benefit.

The assessment identified discretionary and compulsory initiatives that could be incorporated into the project.

Compulsory initiatives may relate to a corporate target or are considered to be fundamental to the delivery of sustainable assets. If an initiative is considered applicable, then it must be completed.

A discretionary initiative may not be practical for a particular project or be the most appropriate initiative to meet a sustainability outcome. Written justification must be provided if a discretionary initiative has not been selected for implementation.

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The assessment identified nine compulsory initiatives and 40 discretionary initiatives that relate to either design or construction or both.

The current rating of the proposal (in accordance with the guidelines and at this reference design phase) is a ‘silver’ sustainability in design rating. 

An assessment of the project against the guidelines would also need to be undertaken during the detailed design phase to ensure that the final design maintains this silver rating.

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6 Community and stakeholder consultation

This section summarises stakeholder consultation undertaken as an input to development of the proposal and the REF.

6.1 Consultation framework

6.1.1 Consultation for the PSU Program

The PSU Program has been underway since it was initiated by RailCorp in 2005. Since its inception, more than 20 projects have been completed and about 20 are currently under construction. These projects include development of a number of substations across the Sydney Trains rail network. Delivery of the program was transferred to Transport for NSW in July 2012.

Since taking responsibility for the program, Transport for NSW has undertaken consultation for various PSU projects. The approach to consultation is guided by Transport for NSW’s Community Engagement Policy (April, 2012), which notes the agency’s commitment to:

• identify and, where possible, respond to the needs of the community

• provide opportunities to encourage community feedback

• keep the community regularly informed of the progress of our projects

• provide easily accessible information

• encourage a sense of community ownership of the projects we deliver

• be transparent in all that we do

• maximise community understanding of our role and the rationale for the projects we deliver.

6.1.2 Consultation for Minto Substation

Communications plan

A consultation strategy for the development of the Minto substation (the Minto, Ingleburn and Guildford Substations REF Communications Plan) has been developed by GHD in consultation with Transport for NSW.

The purpose of this plan is to describe the management and communication processes that will be employed to provide information and seek community input to design and assessment of the proposed substations at Minto.

Consultation objectives

The plan states that the overall objective of consultation is to ensure that key stakeholders and the broader community are aware of the project and are given the opportunity to express their views. The plan identifies the following objectives for consultation:

• identify the impact of the proposed works on internal and external stakeholders, customers, residents and the community

• assist with staff resource planning and allocation

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• reassure internal and external stakeholders that Transport for NSW is meeting its expectations regarding professional management practice in the delivery of our capital and maintenance work programs

• provide a proactive approach to managing issues regarding communication/information flow

• enhance Transport for NSW working relationship with its customers, residents and the community when undertaking essential capital or maintenance works; and

• maintain information flow amongst client/ sponsor, suppliers and other stakeholders to ensure that their requirements and expectations of the project are met.

Consultation and communication activities

As outlined in section 3.2.1, formal statutory consultation under the Infrastructure SEPP is not required.

The communication plan provides for the following consultation activities:

• meetings and briefings with key stakeholders

• making the REF available on Transport for NSW website at http://www.transport.nsw.gov.au/projects-power-supply-upgrade-program

• community information sheets to coincide with the REF display.

The following key stakeholders have been contacted by telephone to date:

• Campbelltown Council

• Sydney Trains

• Sydney Water.

No concerns regarding the proposal have been raised to date. Input provided has mainly been in relation to design requirements (such as connections with Sydney Water’s network).

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7 Environmental impact assessment

This section summarises the environmental impact assessment undertaken for the proposal and includes summaries of the specialist studies undertaken.

7.1 Soils and water quality

7.1.1 Existing environment

Geology, topography and soils

Mapping available on the Department of Lands Spatial Information Exchange Website shows that the proposal site is located at an approximate elevation of 50 metres Australian Height Datum (AHD). The surrounding area is generally flat, with a rise to 100 metres AHD towards the east.

The Wollongong - Port Hacking 1:100 000 Geological Map (Stroud W.J., et al., 1985) indicates that the proposal site is underlain by Triassic aged Ashfield Shale. This is composed of laminate and dark-grey siltstone.

In addition, quaternary aged alluvium is present near to the site, comprising quartz and lithic ‘fluvial’ sand, silt and clay, associated with the nearby creeks.

Reference to the Wollongong-Port Hacking 1:100,000 Soil Landscape Series Sheet (Hazelton and Tille, 1990), shows that the site is underlain by residual soils of the Blacktown Group. This includes gently undulating rises on Wianamatta Group shales with slope gradients generally less than five per cent. The landscape includes broad rounded crests and ridges with gentle slopes. The soils are moderately deep hardsetting soils with a mottled texture contrast on crests grading to yellow podzolic soil on lower slopes and along drainage lines.

A search of the Mine Subsidence Board maps on 28 March 2014 indicated that the proposal site is not within a proclaimed Mine Subsidence District.

Contamination

A search of the Environmental Protection Authority’s (EPA) Contaminated Land Record was undertaken on 5 March 2014 for the suburb of Minto. No contaminated sites were identified in the vicinity of the proposal site. A search of the list of NSW contaminated sites notified to the EPA was also searched for the suburb of Minto. Four sites were identified within Minto; none of which are located within the vicinity of the substation site. There is potential for one site to be located along the Pembroke Road as the exact location of this site cannot be determined, this would potentially be in the vicinity of the proposed water pipeline. Due to nearby land uses it is not considered that this site is located adjacent to the proposal site on Pembroke Road.

Contamination investigations undertaken as part this proposal (GHD, 2014b) did not identify any contamination within the proposal site.

Drainage and watercourses

The proposal site is relatively flat and any surface water drains to the north towards McBarron Creek, which is located about 130 metres to the north. McBarron Creek drains to Bow Bowing Creek, located about 600 metres to the west, which eventually joins the Georges River. In the vicinity of the proposal site, the McBarron Creek bed has been substantially modified. It flows in a westerly direction through Pembroke Park, into a constructed channel/culvert under the rail lines (shown in Figure 7.1).

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Within Pembroke Park, the creek exhibits natural features including ponded areas, rocky outcrops and riparian vegetation.

Figure 7.1 Images of McBarron Creek

Creek features within Pembroke Park Constructed channel/culvert under rail corridor

Groundwater

A search of the Natural Resources Atlas on 5 March 2014 identified that there are three registered boreholes located within 700 to 800 metres east of the proposal site along McBarron Creek. The average standing water level in these varied between 1.4 and 6.3 metres below ground level.

Groundwater was not identified during geotechnical investigations at the proposal site (GHD, 2014). A groundwater monitoring well was also installed to a depth of 4.7 metres. No groundwater has been detected during sampling undertaken to date.

Water quality

The quality of surface water runoff in the vicinity of the proposal site is impacted by existing land uses, including the operation of the rail corridor and surrounding industrial area.

7.1.2 Impact assessment

Construction

Construction of the proposal would involve disturbance to the ground surface to construct the slab, access driveway, water/wastewater pipelines and other underground services. Small stockpiles of excavated soil would be created during construction.

In accordance with the Sustainable Design Guidelines, opportunities would be investigated for the reuse of 90 percent of excavated, non-contaminated, spoil. The spoil would be reused on-site where possible to either backfill excavations or during site levelling works. Excess spoil (up to about 1,400 cubic metres) not suitable for backfilling would be stockpiled in a suitable location prior to being tested, classified, and disposed of at an appropriately licensed facility.

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Soil disturbance

Excavation and stockpiling activities, if not adequately managed, could have the following impacts:

• erosion of exposed soil and stockpiled materials

• dust generation from excavation and vehicle movements over exposed soil

• an increase in sediment loads entering the stormwater system and/or local runoff, and therefore nearby receiving waterways (McBarron Creek).

These impacts are considered to be minimal, as exposure of soil and the stockpiling of spoil would be temporary and short-term in duration and in accordance with the Sustainable Design Guidelines, opportunities would be sought to reuse 90 percent of excavated, non-contaminated spoil. Excess spoil (up to 1,400 cubic metres) not required or able to be reused on site would be stockpiled in a suitable location. It would either be reused elsewhere (if appropriate) or removed from the proposal site, and disposed of at an appropriately licensed facility.

Regrading of the access road would potentially generate up to about 800 cubic metres of material. This amount is considered to be less as some sections of the road would not require regrading as they in an adequate condition. Excess material would be spread over the road surface where possible to minimise the need to remove excess spoil.

Contamination

The approach to managing any contaminated finds would be specified in the construction environmental management plan (CEMP). This includes any contaminated/hazardous material identified within Leumeah Substation during the decommissioning works. This material would be removed from site and treated or disposed of at a licensed facility, and the site would be remediated where required.

The proposal would have the potential to result in soil and water contamination via any accidental fuel or chemical spills from plant and equipment. The installation and commissioning of electrical equipment (for example, the transformers) would involve injecting oils and other chemicals on-site.

The proposal would also involve the removal of redundant equipment as part of the decommissioning of Leumeah Substation, which would contain oils and other chemicals. The potential for impacts as a result of any spills or leaks would be managed by the implementation of measures provided in section 7.1.3.

Groundwater

As outlined in Section 7.1.1, no groundwater was encountered during geotechnical investigations. Therefore construction is unlikely to encounter groundwater.

Contamination of groundwater may occur through the seepage from material and waste stockpiles, or spills of fuels, oils or other chemicals.

Any impacts to groundwater during construction would be temporary and are unlikely to be significant as a result of the small scale of the works. Mitigation measures would be implemented to minimise groundwater inflow into excavations. Excavations would be backfilled progressively to limit groundwater inflow.

Provided the mitigation measures in section 7.1.3 are implemented, impacts to groundwater are not considered to be significant.

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Operation

The proposal involves constructing a new discharge location at McBarron Creek for stormwater discharges from the site. Only clean water would be discharged at this location. It would consist of either redirected overland flows or clean water from the oil and water separator tank. As a result, no water quality impacts (as a result of the introduction of any contaminants) are anticipated. However, there would be the potential for erosion, sedimentation and scour issues, if uncontrolled discharge of stormwater was permitted. The detailed design of the discharge structure would incorporate suitable features (such as scour protection) to minimise the potential for erosion and sedimentation impacts.

As noted in section 5.1.5, bunding would be incorporated into the design of the proposal to contain any chemical spills or leaks.

7.1.3 Mitigation measures

Detailed design

The measures provided below would be implemented during detailed design:

• The stormwater discharge structure at McBarron Creek would be designed to minimise the potential for erosion and sedimentation (e.g. incorporating scour protection) using soft engineering options in accordance with ‘Why do fish need to cross the road: Fish passage requirements for waterway crossings’ (Department of Primary Industries 2003).

Construction

The measures provided below would be implemented during construction:

• A soils and water quality sub-plan would be prepared as part of the CEMP. It would include the following measures:

– Sediment and erosion control devices would be installed to minimise transport of sediment in accordance with Managing Urban Stormwater, Soils & Construction (Landcom, 2004). These devices would be inspected regularly and immediately after rainfall to ensure effectiveness over the duration of works. Any damage to erosion and sediment controls would be rectified immediately.

– Maintenance and checking of the erosion and sedimentation controls would be undertaken on a regular basis and any subsequent records retained. Sediment would be cleared from behind barriers/sand bags on a regular basis as required and all controls would be managed to ensure they work effectively at all times.

– Any soils excavated that are to be used as backfill would be appropriately stored until required.

– Disturbed areas would be restored at the completion of works.

– Spill kits would be maintained on-site at all times.

– Machinery would be checked daily to ensure that no oil, fuel or other liquids are leaking.

– Refuelling of plant and equipment would not be undertaken within the proposal site.

– All water discharges would be undertaken in accordance with Transport for NSW’s Water Discharge and Re-use Guideline (2012c).

– The existing drainage systems would remain operational during construction.

– Clean water would be diverted around the worksite in accordance with Managing Urban Stormwater, Soils & Construction.

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• An ‘unexpected finds protocol’ would be prepared and included in the CEMP to assist with the identification, assessment, management, health and safety implications, remediation and/or disposal (at an appropriately licenced facility) of any potentially contaminated soil and/or water.

• In the event that indicators of contamination are encountered during construction (such as odours or visually contaminated materials), work in the area would cease until an occupational hygienist can advise on the need for remediation or other action.

• If dewatering is required during construction it would be undertaken in accordance with Transport for NSW’s Water Discharge and Re-use Guideline (2012c).

Operation

No mitigation measures are required.

7.2 Flora and fauna

7.2.1 Assessment approach and methodology

A desktop assessment, involving searches of relevant databases, was undertaken to determine the potential conservation significance of vegetation within the study area, and to identify the likelihood that any threatened flora and fauna species, populations and ecological communities would be present. A database search radius of 10 kilometres was used. This search area is referred to as ‘the locality’ for the purposes of this section.

The results were confirmed by a site inspection undertaken by a GHD ecologist on 28 February 2014. The purpose of the inspection was to identify whether any native vegetation or potential habitat (for threatened or migratory biota listed under the TSC and/or EPBC Acts) was present on or near the proposal site.

Following collation of database records, species and community profiles, a ‘likelihood of occurrence’ assessment was prepared with reference to the broad habitats contained within the wider area. This was further refined following field surveys.

The results of the desktop assessment and likelihood of occurrence assessment are provided in Appendix C.

7.2.2 Existing environment

Desktop assessment results

The searches indicated that 11 threatened ecological communities, 25 threatened flora species, one endangered flora population and 43 threatened fauna species have been previously recorded or are predicted to occur within the locality (i.e. search area). A review of previous vegetation mapping did not indicate any native vegetation within the proposal site. The critically endangered ecological community Cumberland Plain Woodland is mapped in Pembroke Park, about 100 metres to the north of the proposal site (NPWS, 2002).

Field survey results - flora

The proposal site consists of regrowth vegetation, including cleared grassland of predominantly exotic species with scattered regenerating native midstorey and canopy species including regenerating juvenile Forest Red Gum (Eucalyptus tereticornis) as well as scattered Black Wattle (Acacia decurrens). The midstorey and understorey are dominated by exotic species, including noxious weeds. It is likely that the proposal site and surrounds has been previously cleared (potentially during construction of the rail line), given that there is no remnant native vegetation.

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Despite its poor condition, some of the regrowth vegetation within the proposal site is commensurate with the River-flat Eucalypt Forest endangered ecological community listed under the TSC Act. This is due to characteristic flora species being present, and the occurrence of better condition intact River-flat Eucalypt Forest vegetation to the north of the proposal site. The TSC Act determination for River-flat Eucalypt Forest notes that degraded forms of the community are considered to form part of the endangered ecological community, including regrowth and modified patches.

A range of weed species were identified within the proposal site, including Blackberry (Rubus fruticosus), Bridal creeper (Asparagus asparagoides), and Lantana (Lantana camara). These are listed by Council as Class 4 noxious weeds.

Vegetation within and surrounding the proposal site is shown in Figure 7.2 and Figure 7.3.

The proposed water and wastewater pipelines would be located within areas of exotic vegetation comprising exotic grassland, and cleared land that does not support any native vegetation. Electrical connections would be located along the access road to the north of the proposal site avoiding areas of native vegetation. No suitable habitat for any predicted threatened flora species exists along these routes.

Field survey results - fauna

The proposal site does not contain any habitat of high value for any native fauna species. The small area of regrowth native vegetation and exotic grassland would provide only a very limited area of potential foraging habitat for common native fauna typical of urban parks and gardens, such as the Noisy Miner (Manorina melanocephala), Australian Raven (Corvus coronoides) and grass skinks (Lampropholis spp.).

The lack of intact native vegetation and relevant foraging resources within the proposal site, combined with the landscape context and proximity to the rail corridor and industrial areas, mean that there is no suitable habitat for threatened flora or fauna or migratory species within the proposal site. While the vegetation type is broadly suitable for the Cumberland Plain Land Snail, the presence of dense exotic grass species and blackberry in the understorey render the site unsuitable for this species.

The routes for the proposed water and wastewater pipelines do not include any intact native vegetation, and do not provide suitable habitat for any predicted threatened fauna species. The exotic grassland and cleared areas would provide very limited potential basking and foraging habitat for common native fauna such as grass skinks (Lampropholis spp.).

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Figure 7.2 Images of existing vegetation on the proposal site

Existing vegetation on-site facing south

Existing vegetation on-site facing north

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Figure 7.3 Existing vegetation

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7.2.3 Impact assessment

Construction

It is estimated that construction of the proposal and ancillary infrastructure/pipeline connections would require clearing and/or disturbance of:

• a small area (about 0.17 hectares) of vegetation considered to be classified as low condition modified regrowth River-flat Eucalypt Forest endangered ecological community

• about 1.3 hectares of exotic/highly modified vegetation.

The above calculations are considered to be worst case and assume that all vegetation within the proposal site and associated infrastructure corridors shown in Figure 5.1 would be removed. However, where practicable, vegetation would be retained.

An assessment of the potential significance of impacts on the River-flat Eucalypt Forest endangered ecological community was undertaken in accordance with section 5A of the TSC Act. The assessment concluded that the proposal would not result in a significant impact on this community. This is a result of the small area that would be impacted by the proposal, and the highly modified and degraded condition of the vegetation, which is unlikely to be important to the long-term survival of the community in the locality. The results of this assessment are provided in Appendix C.

The proposal site and locations for the water and wastewater pipelines, and electrical connections are highly modified and the vegetation does not provide suitable habitat for any threatened species listed under the TSC Act and EPBC Act. The construction of the proposal would require the removal of a small number of native shrubs including a juvenile Forest Red Gum (Eucalyptus tereticornis) and Black Wattle (Acacia decurrens); as well as exotic herbaceous species from the understorey. This would have a negligible impact on native fauna within the surrounding area.

The indicative locations of underground service connections, as shown in Figure 5.1, would be further developed during detailed design. The final locations would be selected to avoid impacts on native vegetation by positioning services in previously disturbed areas.

No habitat or resources of relevance for threatened or migratory fauna are present, and threatened and/or migratory species are not expected to occur in the proposal site. Furthermore, the proposal is not likely to result in indirect impacts on areas of higher quality native vegetation and fauna habitat located further north of the proposal site, given the location of the proposal site and the modified nature of its immediate surrounds.

The proposal would not have a significant impact on threatened or migratory biota and there is no requirement for referral to the Commonwealth Minister for the Environment based on ecological grounds.

Operation

Operation of the proposal would not result in any impacts on flora and fauna.

7.2.4 Mitigation measures

Construction

The measures provided below would be implemented during construction:

• Weeds would be managed and disposed of in accordance with the requirements of the Noxious Weeds Act 1993 and/or the Weeds of National Significance Weed Management Guide.

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• Access to the site and the extent of vegetation clearing would be restricted to the proposal site as identified in Figure 7.3 and locations for trenching associated with the proposed connections, as identified in Figure 5.1.

• Stockpile or laydown areas would be placed in existing cleared areas within the construction compound.

• The area would be checked for fauna prior to disturbing/clearing vegetation.

• All cleared vegetation would be replaced and/or offset in accordance with the following unless otherwise agreed with or directed by Transport for NSW:

– Sydney Trains’ Biodiversity Offset Calculator and for non-significant impacts on vegetation within the rail corridor.

• All vegetation planted on-site would consist of locally endemic native species, unless otherwise agreed with Transport for NSW, following consultation with Council where relevant, and/or the owner of the land upon which the vegetation is to be planted.

Operation

No mitigation measures are required.

7.3 Noise and vibration

7.3.1 Assessment approach and methodology

A desktop assessment was undertaken, involving derivation of noise and vibration criteria, estimates of potential impacts, and an assessment of these potential impacts in relation to the criteria identified.

Noise compliance criteria for construction and operation were derived from the Interim Construction Noise Guideline (ICNG) (DECC, 2009) and the Industrial Noise Policy (INP) (EPA, 2000). These criteria were used to qualitatively assess operational and construction noise impacts.

Currently, there is no Australian Standard that sets criteria for the assessment of building damage caused by vibration. Guidance of limiting vibration values is attained with reference to BS 5228.2 – 2009, Code of Practice for noise and vibration on construction and open sites – Part 2: Vibration and DIN 4150-3: 1999 Structural Vibration – Part 3: Effects of vibration on structures.

The nearest residential receivers are located about 400 metres east of the proposal site. Due to the distance between the proposal site and the nearest residential receivers, background noise monitoring was not undertaken.

7.3.2 Existing environment

The noise environment of the study area is dominated by surrounding industrial activities and the movement of passenger and freight trains along the rail corridor.

The nearest sensitive residential area is located about 400 metres to the east of the proposal site in the suburb of Leumeah. Residential areas are shielded to the west by the large factory buildings located in the industrial areas to the west of Pembroke Road. Residential dwellings along Pembroke Road would be located at least 30 metres from the construction site for the proposed water pipeline (subject to the final alignment).

Other sensitive receivers include employees in the adjacent Austrak Business Park and users of Pembroke Park (playground facilities are located in the north-east of the park). Sensitive receivers are shown on Figure 2.1.

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7.3.3 Noise and vibration criteria

In the absence of background noise monitoring, the following rating background levels (RBLs) were used to establish operational and construction criteria:

• day: 50 decibels (A)

• evening: 45 decibels (A)

• night: 40 decibels (A).

AS1055 -1997 Part 2: Acoustics – Description and measurement of Environmental Noise, describes these levels as relevant to an area with medium density transportation or some commerce or industry.

Construction noise

Recommended standard hours are defined as:

• Monday to Friday: 7 am to 6 pm

• Saturday: 8 am to 1 pm

• no work on Sundays or public holidays.

Outside standard hours the following definitions are used:

• ‘day’ is defined as 1 pm to 6 pm on Saturday, 8 am to 6 pm on Sunday, and public holidays

• ‘evening’ is defined as 6 pm to 10 pm every day

• ‘night’ is defined as 10 pm to 7 am Monday to Saturday, and 10 pm to 8 am on Sunday and public holidays.

Table 7.1 details the ICNG construction noise management levels at sensitive land uses and receivers in the vicinity of the proposal site.

Table 7.1 Construction noise management levels

Land use Management level, LAeq(15min) (dB(A)) (when in use)

Comments

Residential – during recommended standard hours (noise affected)

60 May be some community reaction to noise

Residential – during recommended standard hours (highly noise affected)

75 May be strong community reaction to noise

Residential – outside recommended standard hours (noise affected)

Day: 55 Evening: 45 Night: 40

Strong justification usually required for work outside recommended standard hours. Reasonable and feasible measures should be applied, to meet the noise affected level.

Passive recreation areas 60

Industrial premises 75

Offices and retail outlets 70

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For recommended standard hours:

• The ‘noise affected level’ represents the point above which there may be some community reaction to noise. Where the predicted or measured LAeq(15min) is greater than the noise affected level, the proponent should apply all feasible and reasonable work practices to meet the noise affected level. The proponent should also inform all potentially impacted residents of the nature of works to be carried out, the expected noise levels and duration, as well as contact details.

• The ‘highly noise affected level’ represents the point above which there may be strong community reaction to noise. Where noise is above this level, the relevant authority may require respite periods by restricting the hours that the very noisy activities can occur, taking into account:

– times identified by the community when they are less sensitive to noise (such as before and after school for works near schools, or mid-morning or mid-afternoon for works near residences

– if the community is prepared to accept a longer period of construction in exchange for restrictions on construction times.

Operation noise

Table 7.2 presents the operational noise criteria for the proposal based on the INP.

Table 7.2 Operational noise criteria at sensitive receivers and other land uses

Receiver Time period Amenity criteria (acceptable noise level) LAeq(period)

RBL, LAeq(15min)

Intrusive criteria, LAeq(15min)

Proposal specific noise criteria (external)

Residential receivers (Pembroke Road)1

Day 65 50 55 55 LAeq(day)

Evening 55 45 50 50 LAeq(evening)

Night 50 40 45 45 LAeq(night)

Pembroke Park When in use 50 - - 50 LAeq(period)

Industrial premises When in use 70 - - 70 LAeq(period)

Note 1: Based on the INP ‘noise amenity area’ classification, the residential receivers closest to the proposal site have been classified as ‘urban/industrial interface’.

Sleep disturbance has been assessed using a screening level of background noise level plus 15 dB(A), which is consistent with the INP application notes and the Sydney Trains Environmental Management System Guide Noise and Vibration from Rail Facilities (Sydney Trains, 2013).

Vibration criteria

Table 7.3 and Table 7.4 provide the vibration criteria for human comfort and structural damage. The criteria have been sourced from BS 5228.2 – 2009, Code of Practice for noise and vibration on construction and open sites – Part 2: Vibration and DIN 4150-3: 1999 Structural Vibration – Part 3: Effects of vibration on structures.

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Table 7.3 Guidance on effects of vibration levels for human comfort (BS 5228.2 – 2009)

Vibration level Effect0.14 mm/s Vibration might be just perceptible in the most sensitive situations for most

vibration frequencies associated with construction.

0.3 mm/s Vibration might be just perceptible in residential environments.

1.0 mm/s It is likely that vibration at this level in residential environments will cause complaints, but can be tolerated if prior warning and explanation has been given to residents.

10 mm/s Vibration is likely to be intolerable for any more than a very brief exposure.

Table 7.4 Guideline values for short-term vibration on structures (DIN 4150-3–1999)

Type of structure Guideline values for velocity, (mm/s)

1 Hz to 10 Hz

10 Hz to 50 Hz

50 Hz to 100 Hz1

Buildings used for commercial purposes, industrial buildings, and buildings of similar design.

20 20 to 40 40 to 50

Dwellings and buildings of similar design and/or occupancy. 5 5 to 15 15 to 20

Structures that, because of their particular sensitivity to vibration, cannot be classified under lines 1 and 2 and are of great intrinsic value (for example heritage listed buildings).

3 3 to 8 8 to 10

Note 1: At frequencies above 100 Hz the values given in this column may be used as minimum values.

7.3.4 Impact assessment

Construction

Potential construction noise impacts have been calculated for likely construction equipment based on the Construction Noise Strategy (Transport for NSW, 2012a) and AS2436 – 2010 Guide to noise and vibration control on construction, demolition and maintenance sites. It is noted that while other equipment may be used, it is anticipated that they would produce similar levels of noise emissions. The results are presented in Table 7.5.

Table 7.5 Predicted construction noise levels

Construction stage

Equipment Predicted noise level based on distance in metres from noise source (dB(A))

25 50 100 150 200 250 300 400Site clearing Bulldozer 72 66 60 56 54 52 50 48

Dump truck 72 66 60 56 54 52 50 48

Excavator 69 63 57 53 51 49 47 45

Combined 76 70 64 60 58 56 54 52

Earthworks Excavator 69 63 57 53 51 49 47 45

Compactor 77 71 65 61 59 57 55 53

Dump truck 72 66 60 56 54 52 50 48

Combined 79 73 67 63 61 59 57 55

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Construction stage

Equipment Predicted noise level based on distance in metres from noise source (dB(A))

25 50 100 150 200 250 300 400Substation construction

Concrete truck 72 66 60 56 54 52 50 48

Piling 74 68 62 58 56 54 52 50

Mobile crane 68 62 56 52 50 48 46 44

Small machinery (e.g. Jackhammer, concrete saw)

82 76 70 66 64 62 60 58

Road truck 71 65 59 55 53 51 49 47

Combined 83 77 71 68 65 63 62 59

A qualitative assessment of the potential impacts associated with the use of the equipment listed in Table 7.5 is presented in Table 7.6.

Table 7.6 Construction noise qualitative impact assessment

Noise source

Noise heard at receivers Is examination of work practices necessary?

Is noise loud, in absolute terms, or relative to other noises in the area?

Does the noise include tones or impulses?

Does the noise occur at times that interfere with sleep or comfort?

Bulldozer Yes Yes – reversing alarms No Yes

Trucks Yes Yes – reversing alarms No Yes

Excavator Yes Yes – reversing alarms No Yes

Compactor Yes Yes – reversing alarms No Yes

Mobile crane Yes Yes – reversing alarms No Yes

Piling Yes No No Yes

Jackhammer Yes Yes No Yes

Given the distance to the nearest residential receiver (about 400 metres) and the shielding provided by the industrial buildings, residential receivers are not expected to experience any construction noise or vibration impacts associated with construction at the proposal site.

Noise levels may exceed the criteria for employees at the Austrak Business Park and users of Pembroke Park. However, these exceedances would be minor, short-term and limited to the duration of the construction period.

Construction of the proposed pipeline along Pembroke Road and the operation of plant and machinery would result in some noise impacts to sensitive residential receivers located to the east of Pembroke Road. These impacts are not considered to be significant for the following reasons:

• works would be undertaken during standard work hours

• works would be short-term in duration and would move progressively along the proposal site, meaning that no one receiver would be impacted for an extended period of time.

The proposal would be unlikely to result in vibration impacts. It is not anticipated that the predicted magnitude of ground vibrations during construction would be sufficient to cause damage to any buildings in the vicinity of the proposal or human comfort impacts.

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The low level of vehicle movements associated with construction activities are not expected to lead to noise impacts.

Some construction activities (such as connecting to the overhead wiring equipment and installing certain electrical equipment) may need to be undertaken outside the standard construction hours. These activities would need to occur during scheduled track possession periods. These activities are not expected to cause adverse noise impacts at sensitive receivers.

The proposal would include the use of oversized vehicles to deliver large pieces of equipment such as transformers. The delivery of this equipment may need to be undertaken at night in accordance with NSW Police, RMS and/or Council requirements. The impacts of this are considered to be manageable and would be limited to a very small number of nights.

Appropriate measures have been provided in section 7.3.5 to minimise the potential for noise and vibration impacts.

Operation

Potential operational noise sources would include:

• two rectifier transformers

• two rectifiers

• direct current circuit breaker (DCCB)

• two auxiliary transformers.

Potential noise levels from these sources are provided in Table 7.7. These noise levels are within the range of values provided by Sydney Trains in the Sydney Trains Environmental Management System Guide Noise and Vibration from Rail Facilities (Sydney Trains, 2013).

Any emergency alarms are considered one-off events and have not been included in this assessment. Staff would occasionally access the site out of normal business hours to perform maintenance works. Vehicle movements associated with servicing and maintenance would be infrequent and are not expected to cause noise impacts. Therefore no operational traffic noise impacts are anticipated at sensitive receivers.

Table 7.7 Equipment noise sources, dB(A)

Equipment Noise level Source of dataRectifier LAeq 60 dB(A)

Internal sound pressure levelMeasurement data from GHD Erskineville traction substation site visit

Rectifier transformer

LAeq 79 dB(A) Sound power level

Based on CadnaA transformer noise equations. Confirmed by measurements undertaken on 10 February 2010 at the Erskineville traction substation.

Auxiliary transformer

LAeq 60 dB(A) Sound power level

DCCB LAmax 113 dB(A) Internal sound pressure level

Measurement data from the Waverton traction substation noise assessment

As rectifier and transformer noise levels fluctuate with loading, worst-case noise levels have been used for assessment purposes, even though it is unlikely that the transformers would be under maximum load during the night time period.

Predicted operational noise levels at various distances are presented in Table 7.8. Noise attenuation from building components has been taken into account when calculating the DCCB tripping noise levels. A conservative attenuation of 15 dB(A) from building components is expected.

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Table 7.8 Predicted operational noise levels

Equipment Noise levels at different distance from noise source (dB(A)25 m 50 m 100 m 150 m 200 m 250 m 300 m 400 m

Normal operations (LAeq) 51 45 39 35 33 31 29 27

DCCB tripping (LAmax) 62 56 50 46 44 42 40 38

The results indicate that operational noise criteria would be met at all sensitive receivers. No sleep disturbance impacts from DCCB tripping are expected.

There would be no vibration impacts associated with the operation of the proposal.

7.3.5 Mitigation measures

Construction

A noise and vibration management plan would be prepared as part of the CEMP in accordance with the Construction Noise Strategy (Transport for NSW, 2012a). It would include the following measures:

• Mitigation measures documented in Construction Noise Strategy (Transport for NSW, 2012a) would be adopted where feasible and reasonable.

• Sensitive receivers would be identified and marked on plans.

• Works would be scheduled during recommended standard hours where practicable.

• All equipment and construction methodologies would be selected to minimise noise emissions.

• Equipment would be fitted with appropriate silencers and be in good working order.

• Machines found to produce excessive noise compared to normal industry expectations would be removed from the site or stood down until repairs or modifications can be made. All site workers would be educated as to the potential for noise impacts on sensitive receivers and land uses and encouraged to take practical and reasonable measures to minimise impact during the course of their activities. This would include toolbox talks covering:

– avoid the use of outdoor radios during the night period

– avoid shouting and slamming doors

– where practicable, machines would be operated at low speed or power and switched off when not being used, rather than left idling for prolonged periods

– avoiding dropping materials from height and metal to metal contact where practicable.

• Truck drivers would be informed of designated vehicle routes, parking locations and the requirement to minimise engine idling.

• Non-tonal reversing beepers (or an equivalent mechanism) would be used by construction vehicles and plant.

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• If out of hours works are required, the contractor would prepare and submit a Transport for NSW Out of Hours Work Assessment (3TP-PR-065) and Application Form (9TP-FT-079) for approval prior to the works being undertaken. All out of hours works to be undertaken in accordance with the Construction Noise Strategy (Transport for NSW, 2012a).

Operation

The measures provided below would be implemented during operation:

• Any noise complaints would be investigated in accordance with Sydney Train’s standard operational procedures.

7.4 Air quality

7.4.1 Existing environment

A search of the National Pollutant Inventory undertaken on 3 March 2014 identified 34 air pollutant substances from 13 sources in the Campbelltown LGA, for the 2011 to 2012 reporting period. Five of these sources are located within one kilometre of the proposal site, with the closest being the Streets ice cream factory located in the Austrak Business Park.

Other contributors to air quality within the study area would include emissions from motor vehicles on the surrounding road network, and the diesel trains on the adjoining rail corridor.

The nearest sensitive receivers are the employees in the Austrak Business Park.

7.4.2 Impact assessment

Construction

The proposal would have minimal potential for impacts on air quality as it would not involve substantial clearing, earthworks or other land disturbance with the potential to generate significant quantities of dust. Small amounts of dust may be produced by the minor excavation associated with piling, the movement of construction vehicles and the excavation of trenches for pipelines and cabling.

Dust impacts have the potential to impact on the amenity of employees or residents (for the pipeline along Pembroke Road). Due to the small amount of dust expected and the relatively short duration of works, these impacts are considered to be minimal.

The operation of plant, machinery and trucks may also lead to increases in exhaust emissions in the study area; however these impacts would be minor and short-term.

Implementation of standard air quality management controls (listed in section 7.4.3) would minimise the potential for air quality impacts.

Operation

Air quality

The operation of the proposal would not result in any significant air quality impacts.

Greenhouse gases

Sulfur hexafluoride gas (SF6) would be used as an insulator within the new switchgear at the proposed substation. SF6 has the potential to contribute to greenhouse gas emissions as it has a high greenhouse gas equivalence of 23,900 times that of carbon dioxide. SF6 is sealed within gas-tight compartments inside the switchgear. However, leakage could occur during maintenance activities or through poor work practices. This would be managed by the mitigation measures proposed in section 7.4.3.

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7.4.3 Mitigation measures

Construction

The measures provided below would be implemented during construction:

• An air quality management sub-plan would be prepared as part of the CEMP. It would include measures to minimise the impacts to air quality during the construction of the proposal including those outlined below.

• All plant and machinery would be fitted with emission control devices complying with the Australian Design Standards.

• Machinery would be turned off when not in use and not left to idle for prolonged periods.

• Vehicle movements would be limited to designated entries and exits, haulage routes (to be determined during preparation of the traffic management plan, and in consultation with Roads and Maritime Services and Council) and parking areas.

• Dust generation would be monitored visually, and where required, dust control measures such as water spraying would be implemented to control the generation of dust.

• Any waste produced on-site would be stored and stockpiled for removal off-site daily, to reduce the production of dust.

• Materials transported to and from the site would be covered to reduce dust generation in transit.

• Access points would be inspected to determine whether sediment is being transferred to the surrounding road network. If required, sediment would be promptly removed from roads to minimise dust generation.

• Stabilisation of any excavated areas as soon as practicable.

• Fixed hoses would be used to dampen exposed surfaces to minimise dust generation, where required.

• Shade cloth would be fastened to the perimeter fence on the construction compound to minimise dust transported from the site during construction.

Operation

The measures provided below would be implemented during operation:

• Maintenance of switchgear would be undertaken in accordance with Sydney Trains’ existing management procedures.

7.5 Traffic and transport

7.5.1 Existing environment

The road network in the vicinity of the proposal site is shown in Figure 1.1 and described below.

O’Sullivan Road

O’Sullivan Road is located about one kilometre south-west of the proposal site. It extends from Lindesay Street to Old Leumeah Road near Leumeah Station. The traffic lanes are generally designed for one vehicle in each direction; however the carriageway is generally wide enough to allow two lanes of traffic. O’Sullivan Road provides the main access to the south-western side of Leumeah Station.

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Access road to playing fields

An access road provides access to the playing fields located to the north of the Wests League Club. This road is accessed from the O’Sullivan Road/Old Leumeah Road roundabout and comprises one lane of traffic in either direction with limited space for on-street parking. Access to the rail corridor is available from this road, about 250 metres to the north-east of the roundabout.

Old Leumeah Road

Old Leumeah Road extends about 250 metres linking Pembroke Road to O’Sullivan Road. It may serve as a route for access to the access road. The road comprises one lane of traffic in each direction with a dedicated pedestrian path along each side.

Pembroke Road

Pembroke Road extends about five kilometres from O’Sullivan Road (near Leumeah Station) to Minto Road near Victoria Park. Pembroke Road comprises a median-separated, four lane road with two lanes of traffic flowing in each direction from O’Sullivan Road to Burrendong Road; it then becomes a two lane (one in either direction) road from Burrendong Road to Minto Road. There is a dedicated shoulder along the length of the road, however parking is restricted.

7.5.2 Impact assessment

Construction

Information regarding the proposed arrangements in terms of construction site access, parking and vehicle movements is provided in section 5.

Construction would generate heavy vehicle movements associated with the transportation of construction machinery, equipment and materials to the site. Light vehicle movements would be associated with employees and smaller deliveries.

Overall traffic impacts would be minimal as a result of the short duration and localised nature of the works.

Vehicle movements

Construction vehicle movements would result in a temporary increase in traffic along the road network in the vicinity of the access road entry at O’Sullivan Road.

It is estimated that construction vehicle movements would involve a daily maximum of around 66 heavy vehicle and 40 light vehicle movements. This number is not considered to be likely as there are a number of aspects of the proposal (e.g. access track upgrade and delivery of pre-cast panels) which would not occur at the same time, and therefore average actual vehicle numbers would be lower.

The traffic that would be generated by construction would be a very small proportion of the existing traffic levels on the surrounding road network. This increase is not expected to result in any impacts on the operation of the road network.

Oversized deliveries

The construction of the proposal would require delivery of oversized pieces of equipment, such as transformers and rectifiers. Oversized transport may be required for the decommissioning of Leumeah Substation, to remove larger items of equipment. These deliveries/transport would be undertaken in accordance with the requirements of relevant agencies and would generally be undertaken out of hours to minimise the potential for impacts to the surrounding road network.

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Site access

As noted in section 5.1.4, access to the site would be via the existing access road along the road corridor, which would be sealed as part of the proposal.

Some access would be required to private property and also the road reserve along Pembroke Road for the installation of the wastewater and water pipelines. Impacts on access to and around the private property would be minimal, and the works would be undertaken in consultation with the relevant landowner or occupier to minimise any potential impacts.

Impacts on Pembroke Road (and its road reserve) are considered minimal as the works would be contained within a wide verge located on the western side of the road corridor and therefore would not impact upon the roadway. Construction of the proposed pipeline would not impact upon any access points to neighbouring properties along the section of Pembroke Road in which the pipeline would be laid.

Operation

Vehicular access to the substation would be via the corridor access road accessed via O’Sullivan Road, with a new secure access gate provided to the proposal site. Parking for one vehicle would be provided on-site.

Operation of the proposal would not result in any impacts to traffic or access, as access for maintenance purposes would be infrequent (around two visits per month).

7.5.3 Mitigation measures

Construction

A traffic management sub-plan would be prepared as part of the CEMP. It would include the following measures:

• Traffic and access would be managed in accordance with Traffic Control at Work Sites (RTA, 2010) and in consultation with Roads and Maritime Services and Campbelltown City Council.

• Residents, property owners and operators would be notified of any access restrictions in advance of work commencing.

• Appropriate traffic management would be implemented, including precautionary signs, illuminated warning devices, manual and/or electronic traffic control, and the provision of temporary barriers and markers, to control pedestrians and traffic access to and around the proposal site.

• Safe access points to work areas from the adjacent road network would be established, including safety measures such as security fencing and/or barriers, maintaining sight distance requirements, signage and the provision of traffic management measures.

• The requirements of the Roads Act 1993 would be followed at all times prior to and during all work (including notice requirements, consultation and consent/concurrence requirements for work within public and classified roads).

• Heavy vehicles would be restricted to specified routes.

• Oversized deliveries would be undertaken in accordance with the requirements of Council, Roads and Maritime Services and NSW Police.

• The contractor would consult with neighbouring landowners and/or occupiers to determine timing and access arrangements for the construction of the water pipeline through private property.

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Operation

No mitigation measures are required.

7.6 Land use and social-economic issues

7.6.1 Existing environment

The existing land uses of the site and surrounds are described in sections 2.1 and 2.2. The land use of the proposal site and proposed wastewater pipeline is infrastructure (railway corridor). Land uses along the proposed water pipeline consist of rail corridor, unused industrial land (spare land between buildings) and road reserve.

The main adjoining land uses are commercial/industrial and infrastructure (rail and rail corridor).

The main community with the potential to be impacted by the proposal would be employees of local businesses.

The proposal site is not located within bushfire prone land, however, minor ancillary construction activities (decommissioning of overhead wires and poles and the installation of 33 kilovolt cables) would be undertaken within an area mapped as a bushfire buffer zone (Campbelltown City Council, 2012).

7.6.2 Impact assessment

Construction

Land use

Direct impacts on land use as a result of the proposal would mainly relate to the short-term presence of construction works.

The substation building and equipment would be located within an existing rail corridor and would not result in any direct impacts to land uses of the proposal site or surrounds.

An easement or similar arrangement would be negotiated to allow the water pipeline to be constructed within private property (Lot 13 DP 1051906).

Construction of the water pipeline within the road reserve for Pembroke Road would be undertaken in consultation with Roads and Maritime Services to ensure that it does not result in any impacts to the use of Pembroke Road.

Construction of the proposal would be undertaken within a previously disturbed area. However, given that dense vegetation is located to the north of the proposal site (Pembroke Park), undertaking hot work during construction would present a potential bushfire risk that would be managed by implementing appropriate mitigation measures provided in section 7.6.3.

Community amenity impacts

Given the distance to the nearest sensitive receivers (about 400 metres to the nearest residence in the suburb of Leumeah), construction at the proposal site has limited potential to result in impacts to the amenity of the surrounding community.

Construction of the water pipeline along the Pembroke Road road reserve has the potential to result in some indirect impacts to the amenity of surrounding residents and employees, particularly those properties located in close proximity to the road. These potential impacts include air quality and noise. These impacts would be minimal, as only limited ground disturbance would be required over a very short time period.

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Potential impacts, including noise, traffic and access, air quality, and visual impacts, are assessed in sections 7.3.4, 7.4.2 7.5.2 and 7.7.2 respectively.

Operation

Operation of the substation would not result in any impacts on land use, as it would involve use of existing rail land for rail purposes.

The positioning of the water pipeline through private property would be undertaken within an easement to be developed in consultation with the landowner. The positioning of this pipeline would have limited potential to impact on land use, as the land appears to be vacant land located between buildings. Potential restrictions on the use of land within the easement would be determined in consultation with the landowner.

The location of the water pipeline within the road reserve would be determined in consultation with Roads and Maritime Services to take into account any proposed future works along the road.

Components of the proposal (the 33 kilovolt feeders) located within the bushfire buffer would be installed underground and would not pose a risk to bushfire safety.

7.6.3 Mitigation measures

Detailed design

The following mitigation measures would be implemented during detailed design:

• All easement negotiations would be undertaken in consultation with landowners and in accordance with the requirements of the Land Acquisition (Just Terms Compensation) Act 1991.

• The design and location of the water pipeline along Pembroke Road would be undertaken in consultation with Roads and Maritime Services.

Construction

The following mitigation measures would be implemented during construction:

• The CEMP would specify the approach to consultation during construction, the communication tools to be used, and response protocols. Specific consultation tasks to be undertaken include:

– advising affected landholders of the proposal, the construction hours and duration of work, and supplying a contact number for any queries relating to the work

– displaying accurate public information signs while work is in progress and until site restoration has been completed.

• If hot work is required, welding equipment would not be operated in the vicinity of bushland environments within high bushfire danger periods. Hot works would only be carried out with a hot work permit. Hot works would not take place on total fire ban days unless Rural Fire Service approval is obtained.

• Suitable fire suppression equipment (extinguishers, pumps, hoses etc) would be provided on-site for the duration of construction.

Operation

No additional measures are required.

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7.7 Visual amenity

7.7.1 Existing environment

The proposal site is located between a rail corridor and an industrial area, with the visual landscape dominated by these features. Although Pembroke Park is located to the north, public access to the south-western extent of the park is limited, and any views to the proposal site are shielded by vegetation and factory buildings.

The main views to the proposal site are:

• from the rear of the industrial properties located adjacent to the proposal site

• from train services (in particular passenger services) along the rail line

These viewpoints and views are not considered to be sensitive or significant.

7.7.2 Impact assessment

Construction

Overall, the potential visual impact of construction is considered to be minimal as the works would be temporary and short-term, and there are not considered to be any visually sensitive receivers for the majority of the proposed works.

Construction of the pipeline along Pembroke Road would be visible to properties located to the east of the road, and to the occupants of vehicles travelling along the road. Overall, the potential visual impacts are considered to be minimal as the works would be temporary and short-term, and would be undertaken progressively in small sections.

Operation

Potential visual impacts relate to the presence of a new structure in the landscape. An indicative description of the potential appearance of the proposal is provided in section 5.1. The new structure would be consistent with the existing visual environment, which is dominated by rail infrastructure and industrial development.

The substation building would have wall mounted security lighting above each door opening for night-time illumination. This would not be visible to any sensitive receivers.

7.7.3 Mitigation measures

Construction

The following mitigation measures would be implemented during construction:

• Material would be attached to the site fencing to minimise views of the worksite.

• The worksite would be left in a tidy manner at the end of each work day.

• Directional lighting would be mounted to avoid light spill into adjoining buildings during any night works, particularly during the rail shutdown periods.

Operation

The following mitigation measures would be implemented during operation:

• The detailed design of the proposal would take into account relevant urban design and visual considerations.

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7.8 Heritage

7.8.1 Existing environment

Aboriginal heritage

A search of the Aboriginal Heritage Information Management System was undertaken on 18 February 2014 for a one kilometre radius around the proposal site. The results identified three Aboriginal heritage items. The nearest of these items is located about 400 metres to the south of the proposal site. This item appears to have been destroyed as there is now an industrial development on this site.

Non-Aboriginal heritage

A search of the following heritage registers was undertaken for the suburbs of Minto and Leumeah:

• State Heritage Register

• Section 170 registers for state agencies

• Campbelltown (Urban Area) Local Environmental Plan 2002

• Australian heritage database (includes National Heritage List, Commonwealth Heritage List and Register of the National Estate).

The nearest heritage item is the Holly Lea and Plough Inn, which is listed on the State Heritage Register and the Campbelltown LEP. This item is located about 1.1 kilometres to the south-west of the proposal site.

7.8.2 Impact assessment

The proposal would not impact any listed/known Aboriginal or non-Aboriginal items.

As the proposal site and surrounds have been substantially modified by development and subject to previous ground disturbance (associated with the construction of the rail corridor), the risk of encountering any unknown heritage items is considered to be extremely low.

7.8.3 Mitigation measures

Construction

The following mitigation measures would be implemented during construction:

• If any unanticipated archaeological deposits are identified during construction, work likely to impact on the deposit would cease immediately and the NSW Heritage Council and an archaeologist would be contacted. Where required, further archaeological work and/or consents would be obtained prior to works recommencing at the location.

• Should Aboriginal heritage items be uncovered all work in the vicinity will cease and the Project Manager and Transport for NSW staff will be notified immediately. OEH will be notified in accordance with the National Parks and Wildlife Act 1979. The local Aboriginal Land Council will be notified and an assessment by an archaeologist will be arranged to determine the significance of the objects and any other requirements before work resumes.

Operation

No mitigation measures are required.

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7.9 Electromagnetic energy

An electromagnetic energy report for the proposal was undertaken by EMC Services Pty Ltd in March 2014. The results of this assessment are summarised below. The full assessment report is provided in 0.

7.9.1 Impact assessment

Operation

Electromagnetic energy (EME) is invisible and found everywhere electricity is present. An electric field is a region where electric charges experience an invisible force. The strength of this force is related to the voltage, or the pressure which forces electricity along wires. Electric fields are strongest close to their source, and their strength diminishes rapidly as we move away from the source.

A magnetic field is a region where magnetic materials experience an invisible force produced by the flow of electricity, commonly known as current. Unlike electric fields, magnetic fields are only present when electric current is flowing.

The strength of a magnetic field depends on the size of the current (measured in amps), and decreases rapidly once we move away from the source. While electric fields are blocked by many common materials, this is not the case with magnetic fields.

There are two components to an electromagnetic field, the electric field strength which is very weak at the proposed voltage (1,500 volts) and the magnetic field strength which decreases in an inverse square relationship close to the source and at a higher rate approximating an inverse cubic relationship at further distances.

In recent years there has been an increase in community concerns over the long-term health effects on people living and working near power lines and facilities, particularly high voltage power lines. The Australian Radiation and Nuclear Protection Safety Agency (ARPANSA) has published on its website a Draft Standard for exposure to magnetic fields which advocates a full-time exposure limit of 100 microtesla (a microtesla is a unit of measurement for magnetic strength), and a higher value for occupational exposure.

An assessment of the potential electromagnetic fields for the proposal was undertaken by EMC Services. This assessment found that the strongest magnetic field in a public area is predicted to be outside the substation fence next to the two bunded yards with the rectifier transformers; however these strengths do not exceed the permissible exposure limit of 100 microtesla for the General Public and 500 microtesla for occupational exposure. This is based on a conservative scenario where the substation is being loaded at its maximum rated capacity; in practice, the fields will normally be significantly lower at around 30% to 60% of its rated capacity.

The magnetic field drops off rapidly as the separation distance is increased. It was found to be no more than 5.9 microtesla at the boundary of the substation. Electric fields within the substation are below the acceptable limits. Inside the substation building, within one and 0.45 metres of the 600 volt cabling between the transformer and the rectifier, the predicted power frequency magnetic field was predicted to exceed the limits of 100 microtesla for the general public, and 500 microtesla for occupational personnel, respectively. However, these areas would be fenced off and would only be accessed by appropriately qualified persons.

Without accounting for shielding within the substation, when the substation is fully loaded, the RF electric fields within 60 metres of the substation would not exceed the applicable limit for urban broadcast reception. Within 60 metres of the substation, radio receptions would be impacted, especially for AM reception and HF frequency bands. These levels would be reduced somewhat once shielding from the substation building is factored in. The proposal is not

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 54

expected to result in any interference to FM radio or television signals as the increase in EME would not significantly add to the existing ambient environment.

7.9.2 Mitigation measures

The following mitigation measures would be implemented during operation:

• During commissioning of the substation, monitoring would be undertaken to determine the electromagnetic energy levels within and outside the substation. Should exceedances of the criteria be found, methods to reduce these exceedances would be implemented.

7.10 Waste

7.10.1 Waste generation

Construction

Waste generated would be limited to surplus building materials, such as concrete, brick, and cladding, and excess spoil (up to 1,400 cubic metres) from excavations and regrading of the access road. General waste, such as surplus pipe and cabling associated with connecting the site to services would also be produced. Careful planning of construction activities would ensure that the volume of surplus materials is minimised. The small scale of this building means that a small volume of waste in comparison to other larger infrastructure construction projects is likely to be generated as a result of surplus materials.

The fit out stage is also likely to generate small volumes of waste associated with off cuts from communications and electrical cables.

Decommissioning

The decommissioning of Leumeah Substation would involve removal of all redundant equipment and cabling. All wastes would be collected and stored on-site prior to disposal in accordance with relevant Sydney Trains’ guidelines and the Waste Classification Guidelines (DECCW, 2009). Where possible, this material would be reused or recycled in preference to disposal.

Potentially contaminated material and/or spoil such as oil-filled equipment or asbestos containing materials may also be encountered during the works and would be appropriately managed through the implementation of measures provided in 7.10.2.

Operation

The only waste generated during operation would be related to periodic maintenance. This would include materials such as electrical wiring that would be disposed of in accordance with Sydney Trains’ existing procedures and the Waste Classification Guidelines (DECCW, 2009).

7.10.2 Mitigation measures

Construction

The following mitigation measures would be implemented during construction:

• Wastes generated by the proposal would be managed in accordance with the Waste Classification Guidelines (DECCW, 2009) and in accordance with the waste minimisation hierarchy as follows:

– avoidance, where possible

– treated, as required and reused on-site

– recycled, either within the process or off-site

– where other alternatives are not possible, wastes would be disposed of at appropriately licensed waste management facilities.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 55

• The removal, handling and disposal of any asbestos waste would be undertaken by an appropriately licensed contractor, and in accordance with:

– Code of Practice for the Safe Removal of Asbestos 2005

– Code of Practice for the Management and Control of Asbestos in Workplaces 2005.

Operation

No mitigation measures are required.

7.11 Cumulative impacts

7.11.1 Existing or potential projects

A search of the Planning and Infrastructure website highlighted that there are two major projects located within one kilometre of the proposal site:

• Waste Recovery Facility at 5-7 Montore Road, Minto – northwest of the proposal site

• Minto Maltings Project at Stonny Batter Road, Minto – northeast of the proposal site.

The proposed Waste Recovery Facility received Director General’s Requirements in June 2012 and has not yet received approval. The Minto Maltings Project was approved in May 2009 and is currently in full operation; cumulative impacts associated with this project are therefore expected to be minor.

A search of the Campbelltown Council’s website on 26 March 2014, indicated that an application for a warehouse has been lodged for a site within one kilometre of the proposal site, at 395 Pembroke Road.

At the time of writing this REF, construction of an industrial building at 1 Magnum Place was underway within the industrial park about 300 metres to the south of the proposal site.

7.11.2 Impact assessment

It is not anticipated that construction of the proposal would have any significant cumulative impacts with the proposed Waste Recovery Facility at Montore Road; as the project is yet to be approved and it is unlikely that construction activities will be underway simultaneously to the proposed Minto substation.

Access to the construction site at 1 Magnum Place, Minto is currently via Magnum Place and Pembroke Road. The construction of the proposed water pipeline would potentially occur simultaneously with this construction (including on the same site). Due to the short-term nature of the pipeline construction, the potential for cumulative impacts would be minor.

There is also potential for smaller scale projects to occur in the local area, however the potential for cumulative impacts as a result of the proposal being undertaken at the same time as such small scale projects would be relatively minor.

7.11.3 Mitigation measures

Construction

The following mitigation measures would be implemented during construction:

• Transport for NSW and/or the construction contractor would consult with the proponents of other developments identified in the vicinity of the proposal site to address any potential cumulative impacts.

Operation

No mitigation measures are required.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 56

8 Environmental management and mitigation

This section provides an outline of the environmental management requirements for the proposal, and a consolidated list of mitigation measures that form the environmental management framework.

8.1 Environmental management plans

8.1.1 Construction

Transport for NSW’s ISO 14001 accredited environmental management system (EMS) would be used to manage the proposal. The management system would provide the framework for implementing the environmental management measures documented in this REF, and any conditions of other approvals, licences or permits.

A CEMP would be prepared for the proposal. The CEMP would provide a centralised mechanism through which all potential environmental impacts would be managed. The CEMP would document mechanisms for achieving compliance with the commitments made in this REF, the conditions of approval and other relevant statutory approvals. The plan would address (at a minimum) the following elements:

• water and soil management

• flora and fauna management

• noise and vibration management

• air quality management

• traffic and transport management

• heritage management

• waste management

• community and stakeholder communication.

The plan would be prepared by the contractor/s for the proposal and would be reviewed and endorsed by Transport for NSW prior to the commencement of construction. Implementation and compliance with the CEMP would be monitored by Transport for NSW for the duration of construction. One of the minimum requirements in terms of the tender for the contractor/s is that they have an environmental management plan capable of meeting the requirements of ISO 14001.

8.1.2 Operation

For the operational phase, environmental issues and impacts would be managed under Sydney Trains’ existing operational EMS and through the mitigation measures in section 8.2. The substation would also operate in accordance with Sydney Trains’ existing EPL (EPL No. 12208).

8.2 Summary of mitigation measures

The REF has identified a range of environmental impacts with the potential to occur as a result of the proposal. Table 8.1 provides a summary of the measures proposed to mitigate and manage the potential impacts of the proposal.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 57

The measures listed in Table 8.1 may be revised in response to submissions raised during public display of the REF. Transport for NSW would consider the final environmental management commitments when making a determination on the proposal. Following determination, the finalised mitigation measures would guide subsequent phases of the proposal. Any contractor/s selected to undertake work would be required to undertake all works in accordance with these measures, the conditions of approval and any other relevant statutory approvals

Environmental management measures to be implemented during the proposal are listed in Table 8.1. These measures have been consolidated from those included in section 7 of the REF.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 58

Tab

le 8

.1 M

itig

atio

n m

easu

res

Issu

eID

nu

mb

erM

itig

atio

n m

easu

re

Det

aile

d de

sign

So

ils a

nd w

ater

q

ualit

yA

.1Th

e st

orm

wat

er d

isch

arg

e st

ruct

ure

at M

cBar

ron

Cre

ek w

oul

d b

e d

esig

ned

to

min

imis

e th

e p

ote

ntia

l fo

r er

osi

on

and

se

dim

enta

tio

n (e

.g. i

nco

rpo

rati

ng s

cour

pro

tect

ion)

.

Land

use

and

so

cial

-eco

nom

icB

.1A

ll ea

sem

ent

neg

oti

atio

ns w

oul

d b

e un

der

take

n in

co

nsul

tati

on

wit

h la

ndow

ners

and

in a

cco

rdan

ce w

ith

the

req

uire

men

ts o

f th

e La

nd A

cqui

sitio

n (J

ust

Term

s C

omp

ensa

tion)

Act

1991

.

B.2

The

des

ign

and

loca

tio

n o

f th

e w

ater

pip

elin

e al

ong

Pem

bro

ke R

oad

wo

uld

be

und

erta

ken

in c

ons

ulta

tio

n w

ith

Ro

ads

and

M

arit

ime

Ser

vice

s.

Con

stru

ctio

n

So

ils a

nd w

ater

q

ualit

yC

.1A

so

ils a

nd w

ater

qua

lity

sub

-pla

n w

oul

d b

e p

rep

ared

as

par

t o

f th

e C

EM

P. It

wo

uld

incl

ude

the

follo

win

g m

easu

res:

• S

edim

ent

and

ero

sio

n co

ntro

l dev

ices

wo

uld

be

inst

alle

d t

o m

inim

ise

tran

spo

rt o

f se

dim

ent

in a

cco

rdan

ce w

ith

Man

agin

g

Urb

an S

torm

wat

er, S

oils

& C

onst

ruct

ion

(Lan

dco

m, 2

00

4).

The

se d

evic

es w

oul

d b

e in

spec

ted

reg

ular

ly a

nd im

med

iate

ly

afte

r ra

infa

ll to

ens

ure

effec

tive

ness

ove

r th

e d

urat

ion

of

wo

rks.

Any

dam

age

to e

rosi

on

and

sed

imen

t co

ntro

ls w

oul

d b

e re

ctifi

ed im

med

iate

ly.

• M

aint

enan

ce a

nd c

heck

ing

of

the

ero

sio

n an

d s

edim

enta

tio

n co

ntro

ls w

oul

d b

e un

der

take

n o

n a

reg

ular

bas

is a

nd a

ny

sub

seq

uent

rec

ord

s re

tain

ed. S

edim

ent

wo

uld

be

clea

red

fro

m b

ehin

d b

arri

ers/

sand

bag

s o

n a

reg

ular

bas

is a

s re

qui

red

and

all

cont

rols

wo

uld

be

man

aged

to

ens

ure

they

wo

rk e

ffec

tive

ly a

t al

l tim

es.

• A

ny s

oils

exc

avat

ed t

hat

are

to b

e us

ed a

s b

ackfi

ll w

oul

d b

e ap

pro

pri

atel

y st

ore

d u

ntil

req

uire

d.

• D

istu

rbed

are

as w

oul

d b

e re

sto

red

at

the

com

ple

tio

n o

f w

ork

s.

• S

pill

kit

s w

oul

d b

e m

aint

aine

d o

n-si

te a

t al

l tim

es.

• M

achi

nery

wo

uld

be

chec

ked

dai

ly t

o e

nsur

e th

at n

o o

il, f

uel o

r o

ther

liq

uid

s ar

e le

akin

g.

• R

efue

lling

of

pla

nt a

nd e

qui

pm

ent

wo

uld

no

t b

e un

der

take

n w

ithi

n th

e p

rop

osa

l site

.

• A

ll w

ater

dis

char

ges

wo

uld

be

und

erta

ken

in a

cco

rdan

ce w

ith

Tran

spo

rt fo

r N

SW’s

Wat

er D

isch

arg

e an

d R

e-us

e G

uid

elin

e (2

012

c).

• Th

e ex

isti

ng d

rain

age

syst

ems

wo

uld

rem

ain

op

erat

iona

l dur

ing

co

nstr

ucti

on.

• C

lean

wat

er w

oul

d b

e d

iver

ted

aro

und

the

wo

rksi

te in

acc

ord

ance

wit

h M

anag

ing

Urb

an S

torm

wat

er, S

oils

& C

onst

ruct

ion.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 59

Issu

eID

nu

mb

erM

itig

atio

n m

easu

re

C.2

An

‘une

xpec

ted

find

s p

roto

col’

wo

uld

be

pre

par

ed a

nd in

clud

ed in

the

CE

MP

to

ass

ist

wit

h th

e id

enti

ficat

ion,

ass

essm

ent,

m

anag

emen

t, he

alth

and

saf

ety

imp

licat

ions

, rem

edia

tio

n an

d/o

r d

isp

osa

l (at

an

app

rop

riat

ely

licen

ced

faci

lity)

of

any

po

tent

ially

co

ntam

inat

ed s

oil

and

/or

wat

er.

C.3

In t

he e

vent

tha

t in

dic

ato

rs o

f co

ntam

inat

ion

are

enco

unte

red

dur

ing

co

nstr

ucti

on

(suc

h as

od

our

s o

r vi

sual

ly c

ont

amin

ated

m

ater

ials

), w

ork

in t

he a

rea

wo

uld

cea

se u

ntil

an o

ccup

atio

nal h

ygie

nist

can

ad

vise

on

the

need

for

rem

edia

tio

n o

r o

ther

act

ion.

C.4

If d

ewat

erin

g is

req

uire

d d

urin

g c

ons

truc

tio

n it

wo

uld

be

und

erta

ken

in a

cco

rdan

ce w

ith

Tran

spo

rt fo

r N

SW’s

Wat

er D

isch

arg

e an

d R

e-us

e G

uid

elin

e (2

012

c).

Flo

ra a

nd fa

una

D.1

Wee

ds

wo

uld

be

man

aged

and

dis

po

sed

of

in a

cco

rdan

ce w

ith

the

req

uire

men

ts o

f th

e N

oxio

us W

eed

s A

ct 19

93 a

nd/o

r th

e W

eed

s of

Nat

iona

l Sig

nific

ance

Wee

d M

anag

emen

t G

uid

e.

D.2

Acc

ess

to t

he s

ite a

nd t

he e

xten

t o

f ve

get

atio

n cl

eari

ng w

oul

d b

e re

stri

cted

to

the

pro

po

sal s

ite a

s id

enti

fied

in F

igur

e 7.

3 an

d

loca

tio

ns fo

r tr

ench

ing

ass

oci

ated

wit

h th

e p

rop

ose

d c

onn

ecti

ons

, as

iden

tifie

d in

Fig

ure

5.1.

D.3

Sto

ckp

ile o

r la

ydow

n ar

eas

wo

uld

be

pla

ced

in e

xist

ing

cle

ared

are

as w

ithi

n th

e co

nstr

ucti

on

com

po

und

.

D.4

The

area

wo

uld

be

chec

ked

for

faun

a p

rio

r to

dis

turb

ing

/cle

arin

g v

eget

atio

n.

D.5

All

clea

red

veg

etat

ion

wo

uld

be

rep

lace

d a

nd/o

r o

ffse

t in

acc

ord

ance

wit

h th

e fo

llow

ing

unl

ess

oth

erw

ise

agre

ed w

ith

or

dire

cted

by

Tra

nsp

ort

for

NSW

:

• Sy

dne

y Tr

ains

’ Bio

div

ersi

ty O

ffse

t C

alcu

lato

r an

d fo

r no

n-si

gni

fican

t im

pac

ts o

n ve

get

atio

n w

ithi

n th

e ra

il co

rrid

or.

D.6

All

veg

etat

ion

pla

nted

on-

site

wo

uld

co

nsis

t o

f lo

cally

end

emic

nat

ive

spec

ies,

unl

ess

oth

erw

ise

agre

ed w

ith

Tran

spo

rt fo

r N

SW,

follo

win

g c

ons

ulta

tio

n w

ith

Co

unci

l whe

re r

elev

ant,

and

/or

the

owne

r o

f th

e la

nd u

po

n w

hich

the

veg

etat

ion

is t

o b

e p

lant

ed.

No

ise

and

vi

bra

tio

nE

.1M

itig

atio

n m

easu

res

do

cum

ente

d in

Con

stru

ctio

n N

oise

Str

ateg

y (T

rans

po

rt fo

r N

SW, 2

012

a) w

oul

d b

e ad

op

ted

whe

re fe

asib

le

and

rea

sona

ble

.

E.2

Sen

siti

ve r

ecei

vers

wo

uld

be

iden

tifie

d a

nd m

arke

d o

n p

lans

.

E.3

Wo

rks

wo

uld

be

sche

dul

ed d

urin

g r

eco

mm

end

ed s

tand

ard

ho

urs

whe

re p

ract

icab

le.

E.4

All

equi

pm

ent

and

co

nstr

ucti

on

met

hod

olo

gie

s w

oul

d b

e se

lect

ed t

o m

inim

ise

nois

e em

issi

ons

.

E.5

Eq

uip

men

t w

oul

d b

e fit

ted

wit

h ap

pro

pri

ate

sile

ncer

s an

d b

e in

go

od

wo

rkin

g o

rder

.

E.6

Mac

hine

s fo

und

to

pro

duc

e ex

cess

ive

nois

e co

mp

ared

to

no

rmal

ind

ustr

y ex

pec

tati

ons

wo

uld

be

rem

oved

fro

m t

he s

ite o

r st

oo

d

dow

n un

til r

epai

rs o

r m

od

ifica

tio

ns c

an b

e m

ade.

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Issu

eID

nu

mb

erM

itig

atio

n m

easu

re

E.7

All

site

wo

rker

s w

oul

d b

e ed

ucat

ed a

s to

the

po

tent

ial f

or

nois

e im

pac

ts o

n se

nsit

ive

rece

iver

s an

d la

nd u

ses

and

enc

our

aged

to

ta

ke p

ract

ical

and

rea

sona

ble

mea

sure

s to

min

imis

e im

pac

t d

urin

g t

he c

our

se o

f th

eir

acti

viti

es. T

his

wo

uld

incl

ude

too

lbox

tal

ks

cove

ring

:

• av

oid

the

use

of

out

do

or

rad

ios

dur

ing

the

nig

ht p

erio

d

• av

oid

sho

utin

g a

nd s

lam

min

g d

oo

rs

• w

here

pra

ctic

able

, mac

hine

s w

oul

d b

e o

per

ated

at

low

sp

eed

or

pow

er a

nd s

witc

hed

off

whe

n no

t b

eing

use

d, r

athe

r th

an le

ft

idlin

g fo

r p

rolo

nged

per

iod

s

• av

oid

ing

dro

pp

ing

mat

eria

ls f

rom

hei

ght

and

met

al t

o m

etal

co

ntac

t w

here

pra

ctic

able

.

E.8

Truc

k d

rive

rs w

oul

d b

e in

form

ed o

f d

esig

nate

d v

ehic

le r

out

es, p

arki

ng lo

cati

ons

and

the

req

uire

men

t to

min

imis

e en

gin

e id

ling

.

E.9

No

n-to

nal r

ever

sing

bee

per

s (o

r an

eq

uiva

lent

mec

hani

sm)

wo

uld

be

used

by

cons

truc

tio

n ve

hicl

es a

nd p

lant

.

E.10

If o

ut o

f ho

urs

wo

rks

are

req

uire

d, t

he c

ont

ract

or

wo

uld

pre

par

e an

d s

ubm

it a

Tra

nsp

ort

for

NSW

Out

of

Ho

urs

Wo

rk A

sses

smen

t (3

TP

-PR

-06

5) a

nd A

pp

licat

ion

Fo

rm (

9T

P-F

T-0

79)

for

app

rova

l pri

or

to t

he w

ork

s b

eing

und

erta

ken.

All

out

of

hour

s w

ork

s to

be

und

erta

ken

in a

cco

rdan

ce w

ith

the

Con

stru

ctio

n N

oise

Str

ateg

y (T

rans

po

rt fo

r N

SW, 2

012

a).

Air

qua

lity

F.1

An

air

qua

lity

man

agem

ent

sub

-pla

n w

oul

d b

e p

rep

ared

as

par

t o

f th

e C

EM

P. It

wo

uld

incl

ude

mea

sure

s to

min

imis

e th

e im

pac

ts

to a

ir q

ualit

y d

urin

g t

he c

ons

truc

tio

n o

f th

e p

rop

osa

l inc

lud

ing

tho

se o

utlin

ed b

elow

.

F.2

All

pla

nt a

nd m

achi

nery

wo

uld

be

fitte

d w

ith

emis

sio

n co

ntro

l dev

ices

co

mp

lyin

g w

ith

the

Aus

tral

ian

Des

ign

Stan

dar

ds.

F.3

Mac

hine

ry w

oul

d b

e tu

rned

off

whe

n no

t in

use

and

no

t le

ft t

o id

le fo

r p

rolo

nged

per

iod

s.

F.4

Veh

icle

mov

emen

ts w

oul

d b

e lim

ited

to

des

igna

ted

ent

ries

and

exi

ts, h

aula

ge

rout

es (

to b

e d

eter

min

ed d

urin

g p

rep

arat

ion

of

the

traffi

c m

anag

emen

t p

lan,

and

in c

ons

ulta

tio

n w

ith

Ro

ads

and

Mar

itim

e S

ervi

ces

and

Co

unci

l) a

nd p

arki

ng a

reas

.

F.5

Dus

t g

ener

atio

n w

oul

d b

e m

oni

tore

d v

isua

lly, a

nd w

here

req

uire

d, d

ust

cont

rol m

easu

res

such

as

wat

er s

pra

ying

wo

uld

be

imp

lem

ente

d t

o c

ont

rol t

he g

ener

atio

n o

f d

ust.

F.6

Any

was

te p

rod

uced

on-

site

wo

uld

be

sto

red

and

sto

ckp

iled

for

rem

oval

off

-site

dai

ly, t

o r

educ

e th

e p

rod

ucti

on

of

dus

t.

F.7

Mat

eria

ls t

rans

po

rted

to

and

fro

m t

he s

ite w

oul

d b

e co

vere

d t

o r

educ

e d

ust

gen

erat

ion

in t

rans

it.

F.8

Acc

ess

po

ints

wo

uld

be

insp

ecte

d t

o d

eter

min

e w

heth

er s

edim

ent

is b

eing

tra

nsfe

rred

to

the

sur

roun

din

g r

oad

net

wo

rk.

If re

qui

red

, sed

imen

t w

oul

d b

e p

rom

ptl

y re

mov

ed f

rom

ro

ads

to m

inim

ise

dus

t g

ener

atio

n.

F.9

Stab

ilisa

tio

n o

f an

y ex

cava

ted

are

as a

s so

on

as p

ract

icab

le.

F.10

Fix

ed h

ose

s w

oul

d b

e us

ed t

o d

amp

en e

xpo

sed

sur

face

s to

min

imis

e d

ust

gen

erat

ion,

whe

re r

equi

red

.

F.11

Sha

de

clo

th w

oul

d b

e fa

sten

ed t

o t

he p

erim

eter

fenc

e o

n th

e co

nstr

ucti

on

com

po

und

to

min

imis

e d

ust

tran

spo

rted

fro

m t

he s

ite

dur

ing

co

nstr

ucti

on.

Page 70: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 61

Issu

eID

nu

mb

erM

itig

atio

n m

easu

re

Traffi

c an

d

tran

spo

rtG

.1Tr

affic

and

acc

ess

wo

uld

be

man

aged

in a

cco

rdan

ce w

ith

Traffi

c C

ont

rol a

t W

ork

Site

s (R

TA, 2

010

) an

d in

co

nsul

tati

on

wit

h R

oad

s an

d M

arit

ime

Ser

vice

s an

d C

amp

bel

ltow

n C

ity

Co

unci

l.

G.2

Res

iden

ts, p

rop

erty

ow

ners

and

op

erat

ors

wo

uld

be

noti

fied

of

any

acce

ss r

estr

icti

ons

in a

dva

nce

of

wo

rk c

om

men

cing

.

G.3

Ap

pro

pri

ate

traffi

c m

anag

emen

t w

oul

d b

e im

ple

men

ted

, inc

lud

ing

pre

caut

iona

ry s

igns

, illu

min

ated

war

ning

dev

ices

, man

ual a

nd/

or

elec

tro

nic

traffi

c co

ntro

l, an

d t

he p

rovi

sio

n o

f te

mp

ora

ry b

arri

ers

and

mar

kers

, to

co

ntro

l ped

estr

ians

and

tra

ffic

acce

ss t

o a

nd

aro

und

the

pro

po

sal s

ite.

G.4

Saf

e ac

cess

po

ints

to

wo

rk a

reas

fro

m t

he a

dja

cent

ro

ad n

etw

ork

wo

uld

be

esta

blis

hed

, inc

lud

ing

saf

ety

mea

sure

s su

ch a

s se

curi

ty fe

ncin

g a

nd/o

r b

arri

ers,

mai

ntai

ning

sig

ht d

ista

nce

req

uire

men

ts, s

igna

ge

and

the

pro

visi

on

of

traffi

c m

anag

emen

t m

easu

res.

G.5

The

req

uire

men

ts o

f th

e R

oad

s A

ct 19

93 w

oul

d b

e fo

llow

ed a

t al

l tim

es p

rio

r to

and

dur

ing

all

wo

rk (

incl

udin

g n

oti

ce

req

uire

men

ts, c

ons

ulta

tio

n an

d c

ons

ent/

conc

urre

nce

req

uire

men

ts fo

r w

ork

wit

hin

pub

lic a

nd c

lass

ified

ro

ads)

.

G.6

Hea

vy v

ehic

les

wo

uld

be

rest

rict

ed t

o s

pec

ified

ro

utes

.

G.7

Ove

rsiz

ed d

eliv

erie

s w

oul

d b

e un

der

take

n in

acc

ord

ance

wit

h th

e re

qui

rem

ents

of

Co

unci

l, R

oad

s an

d M

arit

ime

Ser

vice

s an

d

NSW

 Po

lice.

G.8

The

cont

ract

or

wo

uld

co

nsul

t w

ith

neig

hbo

urin

g la

ndow

ners

and

/or

occ

upie

rs t

o d

eter

min

e ti

min

g a

nd a

cces

s ar

rang

emen

ts fo

r th

e co

nstr

ucti

on

of

the

wat

er p

ipel

ine

thro

ugh

pri

vate

pro

per

ty.

Land

use

and

so

cial

-eco

nom

icH

.1Th

e C

EM

P w

oul

d s

pec

ify t

he a

pp

roac

h to

co

nsul

tati

on

dur

ing

co

nstr

ucti

on,

the

co

mm

unic

atio

n to

ols

to

be

used

, and

res

po

nse

pro

toco

ls. S

pec

ific

cons

ulta

tio

n ta

sks

to b

e un

der

take

n in

clud

e:

• ad

visi

ng a

ffec

ted

land

hold

ers

of

the

pro

po

sal,

the

cons

truc

tio

n ho

urs

and

dur

atio

n o

f w

ork

, and

sup

ply

ing

a c

ont

act

num

ber

for

any

que

ries

rel

atin

g t

o t

he w

ork

• d

isp

layi

ng a

ccur

ate

pub

lic in

form

atio

n si

gns

whi

le w

ork

is in

pro

gre

ss a

nd u

ntil

site

res

tora

tio

n ha

s b

een

com

ple

ted

.

H.2

If ho

t w

ork

is r

equi

red

, wel

din

g e

qui

pm

ent

wo

uld

no

t b

e o

per

ated

in t

he v

icin

ity

of

bus

hlan

d e

nviro

nmen

ts w

ithi

n hi

gh

bus

hfire

d

ang

er p

erio

ds.

Ho

t w

ork

s w

oul

d o

nly

be

carr

ied

out

wit

h a

hot

wo

rk p

erm

it. H

ot

wo

rks

wo

uld

no

t ta

ke p

lace

on

tota

l fire

ban

d

ays

unle

ss R

ural

Fire

Ser

vice

ap

pro

val i

s o

bta

ined

.

H.3

Sui

tab

le fi

re s

upp

ress

ion

equi

pm

ent

(ext

ing

uish

ers,

pum

ps,

ho

ses

etc)

wo

uld

be

pro

vid

ed o

n-si

te fo

r th

e d

urat

ion

of

cons

truc

tio

n.

Vis

ual a

men

ity

I.1M

ater

ial w

oul

d b

e at

tach

ed t

o t

he s

ite fe

ncin

g t

o m

inim

ise

view

s o

f th

e w

ork

site

.

I.2Th

e w

ork

site

wo

uld

be

left

in a

tid

y m

anne

r at

the

end

of

each

wo

rk d

ay.

I.3D

irect

iona

l lig

htin

g w

oul

d b

e m

oun

ted

to

avo

id li

ght

sp

ill in

to a

djo

inin

g b

uild

ing

s d

urin

g a

ny n

ight

wo

rks,

par

ticu

larl

y d

urin

g t

he

rail

shut

dow

n p

erio

ds.

Page 71: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 62

Issu

eID

nu

mb

erM

itig

atio

n m

easu

re

Her

itag

eJ.

1If

any

unan

tici

pat

ed a

rcha

eolo

gic

al d

epo

sits

are

iden

tifie

d d

urin

g c

ons

truc

tio

n, w

ork

like

ly t

o im

pac

t o

n th

e d

epo

sit

wo

uld

cea

se

imm

edia

tely

and

the

NSW

Her

itag

e C

oun

cil a

nd a

n ar

chae

olo

gis

t w

oul

d b

e co

ntac

ted

. Whe

re r

equi

red

, fur

ther

arc

haeo

log

ical

w

ork

and

/or

cons

ents

wo

uld

be

ob

tain

ed p

rio

r to

wo

rks

reco

mm

enci

ng a

t th

e lo

cati

on.

J.2

Sho

uld

Ab

ori

gin

al h

erit

age

item

s b

e un

cove

red

all

wo

rk in

the

vic

init

y w

ill c

ease

and

the

Pro

ject

Man

ager

and

Tra

nsp

ort

for

NSW

st

aff w

ill b

e no

tifie

d im

med

iate

ly. O

EH

will

be

noti

fied

in a

cco

rdan

ce w

ith

the

Nat

iona

l Par

ks a

nd W

ildlif

e A

ct 19

79. T

he lo

cal

Ab

ori

gin

al L

and

Co

unci

l will

be

noti

fied

and

an

asse

ssm

ent

by a

n ar

chae

olo

gis

t w

ill b

e ar

rang

ed t

o d

eter

min

e th

e si

gni

fican

ce o

f th

e o

bje

cts

and

any

oth

er r

equi

rem

ents

bef

ore

wo

rk r

esum

es.

Ele

ctro

mag

neti

c en

erg

yK

.1D

urin

g c

om

mis

sio

ning

of

the

sub

stat

ion,

mo

nito

ring

wo

uld

be

und

erta

ken

to d

eter

min

e th

e el

ectr

om

agne

tic

ener

gy

leve

ls

wit

hin

and

out

sid

e th

e su

bst

atio

n. S

houl

d e

xcee

dan

ces

of

the

crite

ria

be

foun

d, m

etho

ds

to r

educ

e th

ese

exce

edan

ces

wo

uld

be

imp

lem

ente

d.

Was

teL.

1W

aste

s g

ener

ated

by

the

pro

po

sal w

oul

d b

e m

anag

ed in

acc

ord

ance

wit

h th

e W

aste

Cla

ssifi

catio

n G

uid

elin

es (

DE

CC

W, 2

00

9)

and

in a

cco

rdan

ce w

ith

the

was

te m

inim

isat

ion

hier

arch

y as

follo

ws:

• av

oid

ance

, whe

re p

oss

ible

• tr

eate

d, a

s re

qui

red

and

reu

sed

on-

site

• re

cycl

ed, e

ithe

r w

ithi

n th

e p

roce

ss o

r o

ff-s

ite

• w

here

oth

er a

ltern

ativ

es a

re n

ot

po

ssib

le, w

aste

s w

oul

d b

e d

isp

ose

d o

f at

ap

pro

pri

atel

y lic

ense

d w

aste

man

agem

ent

faci

litie

s.

L.2

The

rem

oval

, han

dlin

g a

nd d

isp

osa

l of

any

asb

esto

s w

aste

wo

uld

be

und

erta

ken

by

an a

pp

rop

riat

ely

licen

sed

co

ntra

cto

r, an

d in

ac

cord

ance

wit

h:

• C

ode

of P

ract

ice

for

the

Safe

Rem

oval

of A

sbes

tos

200

5

• C

ode

of P

ract

ice

for

the

Man

agem

ent

and

Con

trol

of A

sbes

tos

in W

orkp

lace

s 20

05.

Cum

ulat

ive

imp

acts

M.1

Tran

spo

rt fo

r N

SW a

nd/o

r th

e co

nstr

ucti

on

cont

ract

or

wo

uld

co

nsul

t w

ith

the

pro

po

nent

s o

f o

ther

dev

elo

pm

ents

iden

tifie

d in

the

vi

cini

ty o

f th

e p

rop

osa

l site

to

ad

dre

ss a

ny p

ote

ntia

l cum

ulat

ive

imp

acts

.

Ope

rati

on

No

ise

and

vi

bra

tio

nN

.1A

ny n

ois

e co

mp

lain

ts w

oul

d b

e in

vest

igat

ed in

acc

ord

ance

wit

h Sy

dne

y Tr

ain’

s st

and

ard

op

erat

iona

l pro

ced

ures

.

Air

qua

lity

O.1

Mai

nten

ance

of

switc

hgea

r w

oul

d b

e un

der

take

n in

acc

ord

ance

wit

h Sy

dne

y Tr

ains

’ exi

stin

g m

anag

emen

t p

roce

dur

es.

Vis

ual a

men

ity

P.1

The

det

aile

d d

esig

n o

f th

e p

rop

osa

l wo

uld

tak

e in

to a

cco

unt

rele

vant

urb

an d

esig

n an

d v

isua

l co

nsid

erat

ions

.

Page 72: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 63

9 Conclusion

This section provides a conclusion to the REF, including a summary of the proposal justification and the findings of the REF.

This REF considers the potential impacts of the proposal to construct a new substation at Minto. It has been prepared by GHD on behalf of Transport for NSW to assist with determination of the proposal under Part 5 of the EP&A Act.

9.1 Justification of the proposal

The proposal forms part of Transport for NSW’s Power Supply Upgrade Program, which is being undertaken to meet the actual and projected increase in power demands on the Sydney Trains electrical network. The power study undertaken for the network identified that a new substation was required in the Minto area to provide additional capacity on the Main Southern Line and reduce the loading on adjacent substations. This would also allow for the decommissioning of Leumeah Substation, which has reached the end of its economic life.

The construction of Minto Substation would increase the capacity of the power supply network in the area. Without this increase in power supply, the rail network would not have sufficient capacity to meet the power supply needs of the increase in the number of trains, and the increase in the number of air-conditioned trains.

9.2 Summary of REF findings

The REF has considered the potential impacts of the proposal. It has been prepared in accordance with Part 5 of the EP&A Act, and in particular, the requirements of section 111 of the Act, and clause 228 of the Regulation. The REF has documented the potential environmental impacts of the proposal, considering both potential positive and negative impacts, and recommending management and mitigation measures to protect the environment where required.

9.2.1 Clause 228 considerations

Clause 228 of the Regulation specifies the matters that must be taken into account, for the purposes of Part 5 of the Act, when consideration is being given to the likely impact of an activity on the environment. The potential impacts of the proposal have been considered in section 7 of the REF. The clause 228 matters and how they relate to the proposal are considered in Appendix A.

9.2.2 Ecologically sustainable development

Transport for NSW is committed to ensuring that its projects are implemented in a manner that is consistent with the principles of sustainable development. These principles would be incorporated into the management systems for the proposal.

Appendix A summarises how the principles of ecologically sustainable development adopted by the EP&A Act have been addressed by the REF process.

A sustainability assessment of the proposal was undertaken as part of the design process in accordance with the NSW Sustainable Design Guidelines (Transport for NSW, 2013) as outlined in section 5.5. 

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 64

9.2.3 Significance of impacts

Whilst some potentially negative impacts may result from the proposal, these impacts would be short-term and localised and are not considered to be significant. Section 8.2 of the REF provides the mitigation measures that would be implemented to reduce the potential for impacts and manage the environmental performance of the proposal.

9.3 Conclusion

The REF identifies that the proposal would have the potential for both positive and negative impacts, and it identifies mitigation measures to reduce or manage the negative impacts.

Environmental investigations were undertaken during preparation of the REF to assess the potential environmental impacts.

There are considered to be no significant environmental issues associated with the proposal.

Any potential adverse impacts resulting from the proposal are considered manageable through the implementation of mitigation measures in section 8.2.

In conclusion, the proposal is needed so that the power supply for the rail network has sufficient capacity for future increases in the number of services and also the type of rolling stock. It is considered that the adverse environmental impacts would be generally short-term and localised in nature. With the adoption and implementation of the proposed mitigation and management measures listed in section 8.2, the potential environmental impacts of the proposal would be adequately mitigated and managed, and are not considered to be significant.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 65

10 Reference list

Campbelltown City Council, 2012, Bushfire Prone Land Map.

Department of Environment and Climate Change (DECC), 2009, Interim Construction Noise Guideline.

Department of Environment, Climate Change and Water (DECCW), 2009, Waste Classification Guidelines.

Department of the Environment (DotE), 2014 EPBC Online Protected Matters Search Tool. Department of the Environment. Online resource http://www.environment.gov.au/erin/ert/epbc/index.html.

Environment Protection Authority (EPA), 2000, Industrial Noise Policy.

GHD, 2014a, Minto, Ingleburn and Guildford Substations REF Communications Plan. Prepared for Transport for NSW.

GHD, 2014b, Minto Substation: Geotechnical, Contamination and Hydrology Investigation. April 2014. Prepared for Transport for NSW.

Hazelton P.A. and Tille P.J., 1990, Soil Landscapes of the Wollongong-Port Hacking 1:100,000 Sheet map and report, Soil Conservation Service of NSW, Sydney.

Landcom, 2004, Managing Urban Stormwater, Soils & Construction, Volume 1.

Office of Environment and Heritage (OEH), 2014a, Threatened Species, Population and Communities Database. Search by region. http://www.environment.nsw.gov.au/threatenedSpeciesApp/AreaHabitatSearch.aspx.

OEH, 2014b, NSW Bionet Atlas of NSW Wildlife Database. Office of Environment and Heritage NSW. http://www.bionet.nsw.gov.au/.

National Parks and Wildlife Services (NPWS), 2002, Native Vegetation of the Cumberland Plain. http://www.environment.nsw.gov.au/surveys/GetHoldOfMapsDataAndReports.htm.

RailCorp, 2011, SWRL 2016 Power Study Report ER0293, July 2011, Rev 1.10.

Stroud W.J., Sherwin L., Roy H.N. and Baker C.J., 1985, Wollongong - Port Hacking 1:100 000 Geological Sheet 9029-9129, 1st edition. Geological Survey of New South Wales, Sydney.

Sydney Trains, 2013, Sydney Trains Environmental Management System Guide Noise and Vibration from Rail Facilities.

Transport for NSW (TfNSW), 2012a, Construction Noise Strategy.

Transport for NSW (TfNSW), 2012b, NSW Long Term Transport Master Plan.

Transport for NSW (TfNSW), 2012c, Water discharge and re-use guideline.

Transport for NSW (TfNSW), 2013. NSW Sustainable Design Guidelines, Version 3.0. September 2013.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 66

Appendix A – Clause 228 factors and ecologically sustainable development considerations under the EP&A Act

Clause 228 considerations

Clause 228 factor Summary of results Potential impact

(a) Any environmental impact on a community

Other than a minimal potential for amenity impacts, no community impacts have been identified. No long-term environmental impacts are predicted.

None

(b) Any transformation of a locality

The proposal would be located on rail land in an area that is dominated by railway infrastructure and industrial development. It would not result in the transformation of this locality.

None

(c) Any environmental impact on the ecosystems of the locality

The proposal would remove a small area of highly disturbed and modified regrowth vegetation and would not result in a significant reduction in the extent or occurrence of the community within the locality.

None

(d) Any reduction of the aesthetic, recreational, scientific or other environmental quality or value of a locality

The proposal would not result in any reduction of these qualities or values.

None

(e) Any effect on a locality, place or building having aesthetic, anthropological, archaeological, architectural, cultural, historical, scientific or social significance or other special value for present or future generations

The proposal would not result in any impact on a locality, place or building having aesthetic, anthropological, archaeological, architectural, cultural, historical, scientific or social significance or other special value.

None

f) Any impact on the habitat of protected fauna (within the meaning of the National Parks and Wildlife Act 1974)

No impacts on protected fauna within the meaning of the National Parks and Wildlife Act 1974 are predicted.

None

(g) Any endangering of any species of animal, plant or other form of life, whether living on land, in water or in the air

The proposal would not endanger any species of plant, animal or other form of life.

None

(h) Any long-term effects on the environment

The proposal is not considered to have any long-term impacts on the environment.

None

(i) Any degradation of the quality of the environment

The proposal has the potential to result in minor impacts to environmental quality during the construction period. These impacts would be managed through the implementation of mitigation measures. No long-term impacts to the quality of the environment are predicted.

Short-term – minor negative

Long-term – none

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 67

Clause 228 factor Summary of results Potential impact

(j) Any risk to the safety of the environment

The construction of the proposal is not considered to result in any risk to the safety of the environment. Safety in the vicinity of the proposal would be managed by the contractor/s.

None

(k) Any reduction in the range of beneficial uses of the environment

The proposal would be positioned within the existing rail corridor. The proposal would however not preclude the use of this line in the future, as the proposed substation is positioned clear of any potential future tracks. The proposal would not impact upon the use of any other land.

None

(l) Any pollution of the environment

The proposal had the potential to result in minor short-term air quality and erosion impacts. These impacts would be managed through the implementation of the proposal environmental management plan. Operation of the proposal would not produce any emissions and no long-term pollution impacts are predicted

Short-term – minor negative

Long-term – none

(m) Any environmental problems associated with the disposal of waste

Waste created during the works period would be removed from site and recycled where possible.

None

(n) Any increased demands on resources (natural or otherwise) that are, or are likely to become in short supply

The proposal would not increase the demand on any resources that are or are likely to become in short supply.

None

(o) Any cumulative environmental effect with other existing or likely future activities

No significant cumulative impacts were identified as a result of the interaction of the proposal with other projects.

None

(p) any impact on coastal processes and coastal hazards, including those under projected climate change conditions

The proposal would not impact on coastal processes and coastal hazards.

None

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ESD considerations under the EP&A Act

Principle Definition CommentPrecautionary principle

This principle states that ‘if there are threats of serious or irreversible damage, lack of scientific certainty should not be used as a reason for postponing measures to prevent environmental degradation’.

A range of environmental assessments have been undertaken during the preparation of this REF to ensure that the potential environmental impacts can be understood with a high degree of certainty. There are not considered to be any threats of serious or irreversible environmental damage.

The proposal has evolved to avoid environmental impact where possible and mitigation measures would be implemented to minimise impacts. No mitigation measures have been deferred due to a lack of scientific certainty. The proposal is therefore considered to be consistent with the precautionary principle.

Intergenerational equity

The principle states, ‘the present generation should ensure that the health, diversity and productivity of the environment is maintained or enhanced for the benefit of future generations’. In other words, we should ensure that future generations do not inherit a degraded environment.

The proposal site has been previously disturbed during development of the existing rail corridor and other nearby industrial development. The proposal would not result in any impacts that are likely to impact on the health, diversity or productivity of the environment for future generations. The proposal would benefit future generations as the increase in power supply would allow more trains services to be introduced on to the network which would improve public transport.

Conservation of biological diversity and ecological integrity

This principle states that the ‘diversity of genes, species, populations and communities, as well as the ecosystems and habitats to which they belong, must be maintained and improved to ensure their survival’.

The study area comprises a modified environment within an operational rail corridor. No potential impacts to biological diversity and ecological integrity were identified.

Improved valuation, pricing and incentive mechanisms

This principle requires that ‘costs to the environment should be factored into the economic costs of a project’.

The cost of environmental resources includes the costs incurred to protect the environment. The mitigation measures imposed to minimise the adverse impacts of this proposal would result in economic costs to the construction and operation of the proposal. This indicates the valuation of environmental resources has been assigned.

The proposal has been designed to minimise adverse impacts on the environment by confining work to a defined area and implementing appropriate mitigation measures when impacts are expected.

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Appendix B – Concept design plans

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Page 81: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

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Page 82: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

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Tran

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Page 83: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 74

Appendix C – Flora and fauna assessment results

• Desktop assessment results

• Likelihood of occurrence assessment

• Assessment of significance – River-flat Eucalypt Forest Endangered Ecological Community

Key to likelihood of occurrence assessment for threatened and migratory biota

Likelihood DefinitionPresent Recorded in the study area during current surveys.

Likely Species previously recorded within a 10 kilometre radius of the study area and suitable habitat occurs within the study area.

Possible Species previously recorded within a 10 kilometre radius of the study area and only marginal or limited habitat occurs within the study area.

Species with potential habitat within the study area, but no records from the locality in the last 30 years.

Unlikely Species previously recorded within a 10 kilometre radius of the study area but no suitable habitat recorded.

Species not recorded within a 10 kilometre radius of the study area and only marginal or limited habitat occurs within the study area.

Nil Species not previously recorded within a 10 kilometre radius of the study area and suitable habitat not recorded within the study area, and/or study area outside species known distribution.

Absent In the case of a threatened ecological community, not present within the study area.

Key to table abbreviations

Abbreviation In fullEEC Endangered ecological community

CEEC Critically endangered ecological community

E Endangered

V Vulnerable

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 75

Thre

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Com

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umb

erla

nd P

lain

S

hale

Wo

od

land

s an

d S

hale

Gra

vel

Tran

siti

on

Fo

rest

(f

eder

al li

stin

g)

Co

mp

one

nt

EE

Cs

liste

d

sep

arat

ely

CE

EC

Co

mm

unit

y m

app

ed

as o

ccur

ring

wit

hin

10 k

m (

NP

WS

, 20

02)

; C

om

mun

ity

likel

y to

occ

ur w

ithi

n ar

ea

(Do

TE

, 20

14)

Gra

ssy

wo

od

land

s an

d fo

rest

s o

f th

e sh

ale

hills

and

pla

ins

of

the

Cum

ber

land

Pla

in a

nd a

sso

ciat

ed t

rans

itio

nal

com

mun

itie

s o

n sh

ale-

gra

vel s

oils

. Can

op

y ty

pic

ally

d

om

inat

ed b

y E

ucal

yptu

s m

oluc

cana

, E. t

eret

icor

nis

and

/or

E. fi

bro

sa. S

par

se s

mal

l tre

e st

ratu

m o

f yo

ung

euc

alyp

ts a

nd

Aca

cia

spec

ies

and

/or

shru

b la

yer

do

min

ated

by

Bur

saria

sp

inos

a m

ay b

e p

rese

nt. U

nder

sto

rey

com

pri

ses

per

enni

al

nati

ve g

rass

es, g

rass

like

and

no

n-w

oo

dy

pla

nts.

Ab

sent

. CP

W o

ccur

s in

Pem

bro

ke P

ark

to t

he n

ort

h o

f th

e su

bje

ct s

ite.

Cum

ber

land

Pla

in

Wo

od

land

in t

he

Syd

ney

Bas

in

Bio

reg

ion

EE

CC

EE

CC

om

mun

ity

map

ped

as

occ

urri

ng w

ithi

n 10

 km

(N

PW

S, 2

00

2)

Gra

ssy

wo

od

land

/fo

rest

end

emic

to

the

hill

s an

d p

lain

s o

f th

e C

umb

erla

nd P

lain

. Can

op

y ty

pic

ally

do

min

ated

by

Euc

alyp

tus

mo

lucc

ana,

and

E. t

eret

icor

nis,

wit

h E

. cre

bra

, C

orym

bia

mac

ulat

a an

d E

. eug

enoi

des

occ

urri

ng le

ss

freq

uent

ly. S

hrub

laye

r d

om

inat

ed b

y B

ursa

ria s

pin

osa,

and

g

rass

es s

uch

as T

hem

eda

aust

ralis

and

Mic

rola

ena

stip

oid

es

var

stip

oid

es.

Ab

sent

. Occ

urs

in

Pem

bro

ke P

ark

to t

he

nort

h o

f th

e su

bje

ct

site

.

Fre

shw

ater

W

etla

nds

on

Co

asta

l F

loo

dp

lain

s o

f th

e N

ew S

out

h W

ales

N

ort

h C

oas

t, Sy

dne

y B

asin

and

So

uth

Eas

t C

orn

er B

iore

gio

ns

EE

C-

Co

mm

unit

y m

app

ed a

s o

ccur

ring

wit

hin

10 k

m

(NP

WS

, 20

02)

Occ

urs

in c

oas

tal a

reas

sub

ject

to

per

iod

ic fl

oo

din

g w

ith

stan

din

g f

resh

wat

er fo

r at

leas

t p

art

of

the

year

. Typ

ical

ly

on

silt

s, m

uds

or

hum

ic lo

ams

bel

ow 2

0 m

ele

vati

on

in

low

-lyi

ng p

arts

of

floo

dp

lain

s, a

lluvi

al fl

ats,

dep

ress

ions

, d

rain

age

lines

, bac

ksw

amp

s, la

go

ons

and

lake

s. S

truc

ture

an

d c

om

po

siti

on

vari

es s

pat

ially

and

tem

po

rally

dep

end

ing

o

n th

e w

ater

reg

ime,

tho

ugh

is u

sual

ly d

om

inat

ed b

y he

rbac

eous

pla

nts

and

has

few

wo

od

y sp

ecie

s.

Ab

sent

. No

ap

pro

pri

ate

wet

land

ha

bit

at p

rese

nt.

Riv

er-F

lat

Euc

alyp

t F

ore

st o

n C

oas

tal

Flo

od

pla

ins

of

the

New

So

uth

Wal

es

No

rth

Co

ast,

Syd

ney

Bas

in a

nd S

out

h E

ast

Co

rner

Bio

reg

ions

EE

C-

Co

mm

unit

y m

app

ed a

s o

ccur

ring

wit

hin

10 k

m

(NP

WS

, 20

02)

Occ

urs

on

flats

, dra

inag

e lin

es a

nd r

iver

ter

race

s o

f co

asta

l flo

od

pla

ins

whe

re fl

oo

din

g is

per

iod

ic a

nd s

oils

gen

eral

ly

rich

in s

ilt, l

ack

dee

p h

umic

laye

rs a

nd h

ave

littl

e o

r no

sal

ine

(sal

t) in

fluen

ce. O

ccur

s so

uth

fro

m P

ort

Ste

phe

ns in

the

N

SW N

ort

h C

oas

t, Sy

dne

y B

asin

and

So

uth

Eas

t C

orn

er

bio

reg

ions

. Cha

ract

eris

ed b

y a

tall

op

en c

ano

py

laye

r o

f eu

caly

pts

wit

h va

riab

le s

pec

ies

com

po

siti

on.

Pre

sent

. Po

or

cond

itio

n R

FE

F

pre

sent

wit

h re

gro

wth

A

caci

a d

ecur

rens

an

d E

ucal

yptu

s te

retic

orni

s ov

er a

n ex

oti

c un

der

sto

rey.

Page 85: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

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D |

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r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1476

Com

mun

ity

TSC

Act

st

atus

EP

BC

Act

st

atus

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eS

hale

gra

vel

Tran

siti

on

Fo

rest

in

the

Syd

ney

Bas

in

Bio

reg

ion

EE

CLi

sted

wit

h C

umb

erla

nd

Pla

in

Wo

od

land

(s

ee a

bov

e)

Co

mm

unit

y lik

ely

to o

ccur

wit

hin

area

(D

otE

, 20

14)

Pri

mar

ily in

the

no

rthe

rn s

ecti

on

of

the

Cum

ber

land

Pla

in,

also

foun

d in

Liv

erp

oo

l/;H

ols

wo

rthy

, Ban

ksto

wn,

Yen

nora

, V

illaw

oo

d a

nd K

emp

s C

reek

are

as. O

ccur

s p

rim

arily

whe

re

shal

low

dep

osi

ts f

rom

anc

ient

riv

er s

yste

ms

over

lay

shal

e so

ils, b

ut a

lso

ass

oci

ated

wit

h lo

calis

ed c

onc

entr

atio

ns o

f iro

n-ha

rden

ed g

rave

l. O

pen

fore

st w

ith

cano

py

do

min

ated

by

Euc

alyp

tus

fibro

sa, E

. mol

ucca

na a

nd E

. ter

etic

orni

s,

oft

en w

ith

smal

l tre

e la

yer

of

Mel

aleu

ca d

ecor

a ov

er a

sp

arse

sh

rub

laye

r. G

rad

es in

to C

umb

erla

nd P

lain

Wo

od

land

whe

re

the

influ

ence

of

gra

vel s

oil

dec

lines

, and

into

Co

oks

Riv

er/

Cas

tler

eag

h Ir

onb

ark

Fo

rest

or

Cas

tler

eag

h S

crib

bly

Gum

W

oo

dla

nd w

here

gra

vel d

epo

sits

are

thi

ck.

Ab

sent

. No

sui

tab

le

gra

vel/

shal

e tr

ansi

tio

n ha

bit

at p

rese

nt.

Sha

le/S

and

sto

ne

Tran

siti

on

Fo

rest

EE

CE

EC

Co

mm

unit

y m

app

ed a

s o

ccur

ring

wit

hin

10 k

m

(NP

WS

, 20

02)

Occ

urs

on

the

edg

es o

f th

e C

umb

erla

nd P

lain

whe

re c

lay

soils

on

shal

e in

terg

rad

e w

ith

sand

sto

ne s

oils

, or

whe

re

shal

e ca

ps

over

lay

sand

sto

ne. S

pec

ies

com

po

siti

on

vari

able

d

epen

din

g o

n so

il in

fluen

ces.

Do

min

ant

tree

sp

ecie

s in

clud

e E

ucal

yptu

s te

retic

orni

s, E

. pun

ctat

a, E

. glo

boi

dea

, E

. eug

enio

ides

, E. fi

bro

sa a

nd E

. cre

bra

. Are

as w

ith

a lo

w s

and

sto

ne in

fluen

ce h

ave

an u

nder

sto

rey

clo

ser

to

Cum

ber

land

Pla

in W

oo

dla

nd.

Ab

sent

. Sub

ject

site

no

t lo

cate

d in

the

ap

pro

pri

ate

area

.

Swam

p O

ak

Flo

od

pla

in F

ore

st o

f th

e N

ew S

out

h W

ales

N

ort

h C

oas

t, Sy

dne

y B

asin

and

So

uth

Eas

t C

orn

er B

iore

gio

ns

EE

C-

Co

mm

unit

y m

app

ed a

s o

ccur

ring

wit

hin

10 k

m

(NP

WS

, 20

02)

Typ

ical

ly o

ccur

s b

elow

20

m a

sl o

n w

ater

log

ged

or

per

iod

ical

ly in

und

ated

flat

s, d

rain

age

lines

, lak

e m

arg

ins

and

es

tuar

ine

frin

ges

on

coas

tal fl

oo

dp

lain

s o

f N

SW. A

sso

ciat

ed

wit

h g

rey-

bla

ck c

lay-

loam

s an

d s

and

y lo

ams,

sal

ine

or

sub

-sa

line

gro

und

wat

er. S

truc

ture

var

iab

le f

rom

op

en fo

rest

s to

sc

rub

s o

r re

edla

nds

wit

h sc

atte

red

tre

es. C

ano

py

do

min

ated

by

Cas

uarin

a g

lauc

a (n

ort

h o

f B

erm

agui

) o

r M

elal

euca

er

icifo

lia (

sout

h o

f B

erm

agui

). U

nder

sto

rey

char

acte

rise

d

by f

req

uent

occ

urre

nces

of

vine

s, a

sp

arse

cov

er o

f sh

rub

s,

and

a c

ont

inuo

us g

roun

dco

ver

of

forb

s, s

edg

es, g

rass

es a

nd

leaf

 litt

er.

Ab

sent

. No

ap

pro

pri

ate

spec

ies

pre

sent

.

Page 86: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1477

Com

mun

ity

TSC

Act

st

atus

EP

BC

Act

st

atus

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eSw

amp

Scl

ero

phy

ll F

ore

st o

n C

oas

tal

Flo

od

pla

ins

of

the

New

So

uth

Wal

es

No

rth

Co

ast,

Syd

ney

Bas

in a

nd S

out

h E

ast

Co

rner

Bio

reg

ions

EE

C-

Co

mm

unit

y lik

ely

to o

ccur

wit

hin

area

(D

otE

, 20

14)

Usu

ally

occ

urs

bel

ow 2

0m

asl

(so

met

imes

up

to

50

m).

A

sso

ciat

ed w

ith

hum

ic c

lay

loam

s an

d s

and

y lo

ams,

o

n w

ater

log

ged

or

per

iod

ical

ly in

und

ated

allu

vial

flat

s an

d d

rain

age

lines

ass

oci

ated

wit

h co

asta

l flo

od

pla

ins.

C

hara

cter

ised

by

op

en t

o d

ense

tre

e la

yer

of

euca

lyp

ts a

nd

pap

erb

arks

, wit

h tr

ees

up t

o o

r hi

ghe

r th

an 2

5 m

. Inc

lud

es

area

s o

f fe

rn la

nd a

nd t

all r

eed

or

sed

ge

land

, whe

re t

rees

ar

e sp

arse

or

abse

nt.

Ab

sent

. No

ap

pro

pri

ate

spec

ies

pre

sent

.

Syd

ney

Turp

enti

ne-

Iro

nbar

k F

ore

stE

EC

CE

EC

Co

mm

unit

y m

app

ed

as o

ccur

ring

wit

hin

10 k

m (

NP

WS

, 20

02)

; co

mm

unit

y m

ay o

ccur

w

ithi

n 10

 km

(D

otE

, 20

14)

Occ

urs

on

the

Cum

ber

land

Pla

in, w

ith

mo

st r

emna

nts

in B

aulk

ham

Hill

s, H

awke

sbur

y, H

orn

sby,

Ku-

ring

-gai

, P

arra

mat

ta, R

yde,

Sut

herl

and

and

Wo

llond

illy

LGA

s. O

pen

fo

rest

cha

ract

eris

ed b

y Sy

ncar

pia

glo

mul

ifera

, Euc

alyp

tus

pun

ctat

a, E

ucal

yptu

s p

anic

ulat

a an

d E

. eug

enoi

des

. In

area

s o

f hi

gh

rain

fall

(ove

r 10

50 m

m p

er a

nnum

) E

. sal

igna

is m

ore

d

om

inan

t. S

par

se s

hrub

str

atum

of

Pitt

osp

orum

und

ulat

um

and

Pol

ysci

as s

amb

ucifo

lia.

Ab

sent

. No

ap

pro

pri

ate

spec

ies

pre

sent

. Sub

ject

site

no

t lo

cate

d w

ithi

n d

istr

ibut

ion.

Up

land

Bas

alt

Euc

alyp

t F

ore

sts

of

the

Syd

ney

Bas

in

Bio

reg

ion

EE

CC

om

mun

ity

likel

y to

occ

ur w

ithi

n ar

ea

(Do

tE, 2

014

)

Gen

eral

ly c

onfi

ned

to

the

Syd

ney

Bas

in IB

RA

Bio

reg

ion

alth

oug

h so

me

occ

urre

nces

may

ext

end

out

sid

e th

e Sy

dne

y B

asin

Bio

reg

ion

bo

und

ary,

e.g

. the

so

uthe

rn e

xten

t at

S

assa

fras

, eas

t o

f N

erri

ga

NSW

, and

pat

ches

on

the

Boy

d

Pla

teau

and

Mt

Wer

ong

. Gen

eral

ly t

all o

pen

euc

alyp

t fo

rest

s fo

und

on

igne

ous

ro

ck (

pre

do

min

atel

y Te

rtia

ry b

asal

t an

d

mic

rosy

enite

) in

, or

adja

cent

to,

the

Syd

ney

Bas

in B

iore

gio

n.

Ab

sent

. Sub

ject

site

o

utsi

de

dis

trib

utio

n o

f th

e co

mm

unit

y.

Page 87: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

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D |

Tran

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t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1478

Com

mun

ity

TSC

Act

st

atus

EP

BC

Act

st

atus

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eW

este

rn S

ydne

y D

ry

Rai

nfo

rest

and

Mo

ist

Wo

od

land

on

Sha

le

EE

C

(co

mp

-o

nent

s lis

ted

se

par

atel

y)

CE

EC

Co

mm

unit

y lik

ely

to o

ccur

wit

hin

area

(D

otE

, 20

14)

Incl

udes

tw

o c

om

mun

itie

s lis

ted

und

er t

he T

SC

Act

: W

este

rn S

ydne

y D

ry R

ainf

ore

st a

nd M

ois

t S

hale

Wo

od

land

. Th

e co

mm

unit

y as

list

ed u

nder

the

EP

BC

Act

occ

urs

on

shal

e su

bst

rate

and

ran

ges

fro

m d

ry r

ainf

ore

st w

ith

clo

sed

no

n-eu

caly

pt

cano

py w

hich

tra

nsit

ions

to

mo

ist

euca

lyp

t w

oo

dla

nd w

ith

a re

lati

vely

op

en c

ano

py,

gen

eral

ly o

n sl

op

es a

bov

e th

e ra

info

rest

. In

shel

tere

d g

ullie

s, g

ener

ally

ch

arac

teri

sed

by

an in

terr

upte

d c

ano

py

of

Mel

aleu

ca

styp

helio

ides

wit

h sc

atte

red

em

erg

ent

Euc

alyp

tus

spec

ies,

a

pre

do

min

antl

y m

esic

shr

ub s

trat

um, s

om

e ch

arac

teri

stic

ra

info

rest

sp

ecie

s (e

.g. A

lect

ryon

sub

cine

reus

, Str

eblu

s p

end

ulin

us)

and

a s

par

se g

roun

dco

ver.

Vin

es a

nd c

limb

ers

are

com

mo

n. P

rick

ly s

hrub

s ar

e al

so c

om

mo

n an

d

char

acte

rist

ic (

e.g

. Pitt

osp

orum

mul

tiflor

um).

In m

ore

m

arg

inal

site

s, c

an t

ake

on

its

mo

ist

wo

od

land

form

whe

re

euca

lyp

ts d

om

inat

e a

slig

htly

mo

re o

pen

can

op

y. T

he m

ois

t w

oo

dla

nd fo

rm h

as a

sim

ilar

mes

ic s

hrub

laye

r co

nsis

ting

of

man

y o

f th

e sa

me

shru

b a

nd g

roun

d-l

ayer

sp

ecie

s th

at a

re

typ

ical

of

dry

rai

nfo

rest

but

wit

h le

ss v

ines

and

clim

ber

s.

Ab

sent

. No

ap

pro

pri

ate

spec

ies

pre

sent

.

Page 88: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

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D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1479

Thre

aten

ed fl

ora

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eC

ynan

chum

el

egan

sW

hite

-flow

ered

Wax

P

lant

E1

ES

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

); 1

re

cord

fro

m 19

92

wit

hin

10 k

m

(OE

H, 2

014

a)

Occ

urs

fro

m G

erro

a (I

llaw

arra

) to

Bru

nsw

ick

Hea

ds

and

wes

t to

Mer

riw

a in

the

up

per

Hun

ter.

Mo

st c

om

mo

n ne

ar K

emp

sey.

Usu

ally

occ

urs

on

the

edg

e o

f d

ry r

ainf

ore

st o

r lit

tora

l rai

nfo

rest

, b

ut a

lso

occ

urs

in C

oas

tal B

anks

ia S

crub

, op

en

fore

st a

nd w

oo

dla

nd, a

nd M

elal

euca

scr

ub. S

oil

and

geo

log

y ty

pes

are

no

t lim

itin

g.

Unl

ikel

y. S

ite is

in

po

or

cond

itio

n an

d is

d

om

inat

ed b

y M

oth

V

ine

and

Bla

ckb

erry

w

ith

reg

row

th A

caci

a d

ecur

rens

and

E

ucal

yptu

s te

retic

orni

s.

Mar

sden

ia

virid

iflor

a su

bsp

. vi

ridifl

ora

Mar

sden

ia v

iridi

flora

R

. Br.

subs

p. v

iridi

flora

po

pula

tion

in th

e B

anks

tow

n, B

lack

tow

n,

Cam

den,

Cam

pbel

ltow

n,

Fairfi

eld,

Hol

royd

, Li

verp

ool a

nd P

enrit

h lo

cal g

over

nmen

t are

as

E2

3

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Rec

ent

reco

rds

are

fro

m P

rosp

ect,

Ban

ksto

wn,

S

mit

hfiel

d, C

abra

mat

ta C

reek

and

St

Mar

ys.

Pre

vio

usly

kno

wn

nort

h fr

om

Raz

orb

ack

Ran

ge.

A

clim

ber

tha

t g

row

s in

vin

e th

icke

ts a

nd o

pen

sh

ale

wo

od

land

.

Unl

ikel

y. L

ack

of

suit

able

vi

ne t

hick

et o

r sh

ale

wo

od

land

pre

sent

.

Allo

casu

arin

a g

lare

icol

aE

1E

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Pri

mar

ily r

estr

icte

d t

o s

mal

l po

pul

atio

ns in

an

d a

roun

d C

astl

erea

gh

NR

(N

W C

umb

erla

nd

Pla

in),

but

wit

h an

out

lier

po

pul

atio

n at

Voy

ager

P

oin

t, Li

verp

oo

l. A

lso

rep

ort

ed f

rom

Ho

lsw

ort

hy

Mili

tary

Are

a. G

row

s o

n te

rtia

ry a

lluvi

al g

rave

ls,

wit

h ye

llow

cla

yey

sub

soil

and

late

riti

c so

il.

Occ

urs

in C

astl

erea

gh

op

en w

oo

dla

nd.

Nil.

No

Cas

tler

eag

h o

pen

w

oo

dla

nd p

rese

nt.

Leuc

opog

on

exol

asiu

sW

oro

nora

Bea

rd-h

eath

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14);

3

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

alon

g t

he u

pp

er G

eorg

es R

iver

and

in

Hea

thco

te N

P, R

oyal

NP

and

is a

lso

know

n fr

om t

he B

lue

Mou

ntai

ns a

long

the

Gro

se R

iver

. G

row

s in

woo

dla

nd o

n sa

ndst

one

and

pre

fers

ro

cky

hills

ides

alo

ng c

reek

ban

ks u

p t

o 10

0 m

al

titud

e. A

ssoc

iate

d s

pec

ies

incl

ude

Euc

alyp

tus

pip

erita

and

E. s

ieb

eri a

nd P

ulte

naea

flex

ilis,

Le

pto

sper

mum

trin

ervi

um a

nd D

illw

ynia

reto

rta.

Unl

ikel

y. L

ack

of

suit

able

ro

cky

hills

ide

hab

itat

o

r as

soci

ated

sp

ecie

s p

rese

nt.

Page 89: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1480

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eLe

ucop

ogon

fle

tche

ri su

bsp

. fle

tche

ri

E1

1 r

eco

rd f

rom

19

89 w

ithi

n 10

 km

(O

EH

, 20

14a)

Res

tric

ted

to

NW

Syd

ney

bet

wee

n St

Alb

ans

and

Ann

ang

rove

, wit

hin

the

Haw

kesb

ury,

The

H

ills

and

Blu

e M

oun

tain

s LG

As.

Occ

urs

in d

ry

euca

lyp

t w

oo

dla

nd o

r sh

rub

land

on

clay

ey

late

riti

c so

ils, g

ener

ally

on

flat

to g

entl

y sl

op

ing

te

rrai

n al

ong

rid

ges

and

sp

urs.

Flo

wer

s A

ugus

t to

Sep

tem

ber

.

Unl

ikel

y. L

ack

of

suit

able

ri

dg

e o

r sp

ur t

erra

in a

nd

und

erst

ore

y d

om

inat

ed

by

exo

tic

spec

ies.

Pul

tena

ea

par

viflo

raE

1V

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

on

the

Cum

ber

land

Pla

in, w

ith

core

d

istr

ibut

ion

fro

m W

ind

sor

to P

enri

th a

nd e

ast

to D

ean

Par

k, a

nd o

utlie

rs in

Kem

ps

Cre

ek

and

Wilb

erfo

rce.

Gro

ws

in d

ry s

cler

op

hyll

wo

od

land

s, fo

rest

or

in g

rass

land

s o

n W

iana

mat

ta S

hale

, lat

erite

or

Tert

iary

allu

vium

, o

n in

fert

ile s

and

y to

cla

y so

ils. A

sso

ciat

ed

com

mun

itie

s in

clud

e C

astl

erea

gh

Iro

nbar

k F

ore

st, S

hale

Gra

vel t

rans

itio

n F

ore

st a

nd

inte

rgra

de

wit

h C

astl

erea

gh

Scr

ibb

ly G

um

Wo

od

land

.

Nil.

Lac

k o

f as

soci

ated

co

mm

unit

ies

wit

hin

the

site

and

mid

sto

rey

do

min

ated

by

exo

tic

spec

ies.

Aca

cia

byno

eana

Byn

oe’

s W

attl

eE

1V

1 rec

ord

fro

m

199

0 w

ithi

n 10

 km

(O

EH

, 20

14a)

End

emic

to

cen

tral

eas

tern

NSW

, cur

rent

ly

know

n fr

om

onl

y 34

loca

tio

ns, m

any

of

onl

y 1-

5 p

lant

s. G

row

s m

ainl

y in

hea

th/

dry

scl

ero

phy

ll fo

rest

on

sand

y so

ils, p

refe

rs o

pen

, so

met

imes

sl

ight

ly d

istu

rbed

site

s su

ch a

s tr

ail m

arg

ins,

ro

ad e

dg

es, a

nd in

rec

entl

y b

urnt

op

en p

atch

es.

Flo

wer

s S

epte

mb

er t

o M

arch

, and

fru

it m

atur

es

in N

ovem

ber

.

Unl

ikel

y. L

ack

of

heat

h/in

tact

dry

scl

ero

phy

ll fo

rest

, lac

k o

f o

pen

are

as

and

mid

and

und

erst

ore

y ar

e d

om

inat

ed b

y ex

oti

c sp

ecie

s th

at w

oul

d o

ut-

com

pet

e th

is s

pec

ies.

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GH

D |

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spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1481

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eA

caci

a p

ubes

cens

Dow

ny W

attl

eV

VS

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

);

1 rec

ord

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

mai

nly

in B

anks

tow

n-Fa

irfie

ld-

Ro

okw

oo

d a

nd P

itt

Tow

n ar

eas,

wit

h o

utlie

rs a

t B

ard

en R

idg

e, O

akd

ale

and

Mo

unta

in L

ago

on.

G

row

s o

n al

luvi

ums,

sha

les

and

sha

le/s

and

sto

ne

inte

rgra

des

. So

ils c

hara

cter

isti

cally

gra

vely

, o

ften

wit

h iro

nsto

ne. O

ccur

s in

op

en w

oo

dla

nd

and

fore

st, i

n co

mm

unit

ies

incl

udin

g C

oo

ks

Riv

er/

Cas

tler

eag

h Ir

onb

ark

Fo

rest

, Sha

le/

Gra

vel T

rans

itio

n F

ore

st a

nd C

umb

erla

nd P

lain

W

oo

dla

nd. F

low

ers

Aug

ust

to O

cto

ber

.

Unl

ikel

y. L

ack

of

gra

velly

so

ils. M

idst

ore

y d

om

inat

ed b

y ex

oti

c sp

ecie

s.

Pel

arg

oniu

m

sp. S

tria

tellu

m

(G.W

. Car

r 10

345)

Om

eo S

tork

sbill

E1

ES

pec

ies

or

spec

ies

hab

itat

may

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Om

eo S

tork

sbill

Pel

arg

oniu

m s

p. (

G.W

. Car

r 10

345)

, syn

. P. s

tria

tellu

m, i

s a

tuft

ed p

eren

nial

fo

rb k

now

n fr

om

onl

y 3

loca

tio

ns in

NSW

, w

ith

two

on

lake

-bed

s o

n th

e b

asal

t p

lain

s o

f th

e M

ona

ro a

nd o

ne a

t La

ke B

athu

rst.

It h

as

a na

rrow

hab

itat

tha

t is

usu

ally

just

ab

ove

the

hig

h-w

ater

leve

l of

irre

gul

arly

inun

dat

ed o

r ep

hem

eral

lake

s, in

the

tra

nsit

ion

zone

bet

wee

n su

rro

und

ing

gra

ssla

nds

or

pas

ture

and

the

w

etla

nd o

r aq

uati

c co

mm

unit

ies.

Nil.

Out

sid

e kn

own

rang

e an

d la

ck o

f su

itab

le

aqua

tic

hab

itat

pre

sent

.

Hal

orag

is

exal

ata

sub

sp.

exal

ata

Sq

uare

Ras

pw

ort

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

in 4

wid

ely

scat

tere

d lo

calit

ies

in

east

ern

NSW

, in

the

cent

ral c

oas

t, so

uth

coas

t an

d n

ort

h-w

este

rn s

lop

es. R

equi

res

pro

tect

ed

and

sha

ded

dam

p s

itua

tio

ns in

rip

aria

n ha

bit

ats.

Nil.

Lac

k o

f su

itab

le

shad

ed, d

amp

and

in

tact

rip

aria

n ha

bit

at

pre

sent

. Mid

sto

rey

and

un

der

sto

rey

do

min

ated

b

y ex

oti

c sp

ecie

s.

Page 91: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1482

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eSt

reb

lus

pen

dul

inus

Sia

h’s

Bac

kbo

neE

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Sia

h’s

Bac

kbo

ne o

ccur

s fr

om

Cap

e Yo

rk

Pen

insu

la t

o M

ilto

n, s

out

h-ea

st N

ew S

out

h W

ales

(N

SW),

as

wel

l as

No

rfo

lk Is

land

(A

TR

P

2010

; Jes

sup

20

03;

The

Roy

al B

ota

nic

Gar

den

s an

d D

om

ain

Trus

t 20

11).

Sia

h’s

Bac

kbo

ne is

fo

und

in w

arm

er r

ainf

ore

sts,

chi

efly

alo

ng

wat

erco

urse

s. T

he s

pec

ies

gro

ws

in w

ell-

dev

elo

ped

rai

nfo

rest

, gal

lery

fore

st a

nd d

rier

, m

ore

sea

sona

l rai

nfo

rest

(A

TR

P 2

010

).

Nil.

Lac

k o

f ra

info

rest

ve

get

atio

n p

rese

nt.

Mel

aleu

ca

bic

onve

xaB

ico

nvex

Pap

erb

ark

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Sca

tter

ed, d

isju

nct

po

pul

atio

ns in

co

asta

l ar

eas

fro

m J

ervi

s B

ay t

o P

ort

Mac

qua

rie,

wit

h m

ost

po

pul

atio

ns in

the

Go

sfo

rd-W

yong

are

as.

Gro

ws

in d

amp

pla

ces,

oft

en n

ear

stre

ams

or

low

-lyi

ng a

reas

on

allu

vial

so

ils o

f lo

w s

lop

es o

r sh

elte

red

asp

ects

.

Unl

ikel

y. S

ite is

in p

oo

r co

ndit

ion

and

mid

and

un

der

sto

rey

is d

om

inat

ed

by

exo

tic

spec

ies.

Mel

aleu

ca

dea

nei

Dea

ne’s

Pap

erb

ark

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14);

9

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

fro

m N

owra

- St

Alb

ans

and

wes

t to

the

B

lue

Mo

unta

ins,

wit

h m

ost

rec

ord

s in

Ku-

ring

-g

ai /

Ber

owra

and

Ho

lsw

ort

hy/W

edd

erb

urn

area

s. M

ost

ly g

row

s o

n b

road

flat

rid

get

op

s, d

ry

rid

ges

and

slo

pes

and

str

ong

ly a

sso

ciat

ed w

ith

low

nut

rien

t sa

ndy

loam

so

ils, s

om

etim

es w

ith

irons

tone

. Gro

ws

in h

eath

- o

pen

fore

st, o

ften

in

sand

sto

ne r

idg

eto

p w

oo

dla

nd c

om

mun

itie

s.

Unl

ikel

y. L

ack

of

rid

get

op

ha

bit

at p

rese

nt.

Page 92: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

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D |

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spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

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– M

into

Sub

stat

ion

RE

F |

July

20

1483

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eC

ryp

tost

ylis

hu

nter

iana

Leafl

ess

Tong

ue

Orc

hid

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

in c

oas

tal a

reas

fro

m E

ast

Gip

psl

and

to

so

uthe

rn Q

ueen

slan

d. H

abit

at p

refe

renc

es

not

wel

l defi

ned

. Gro

ws

mo

stly

in c

oas

tal

heat

hlan

ds,

mar

gin

s o

f co

asta

l sw

amp

s an

d

sed

gel

and

s, c

oas

tal f

ore

st, d

ry w

oo

dla

nd,

and

low

land

fore

st. P

refe

rs o

pen

are

as in

the

un

der

sto

rey

and

is o

ften

foun

d in

ass

oci

atio

n w

ith

Cry

pto

styl

is s

ubul

ata

and

the

Cry

pto

styl

is

erec

ta. S

oils

incl

ude

mo

ist

sand

s, m

ois

t to

dry

cl

ay lo

am a

nd o

ccas

iona

lly in

acc

umul

ated

eu

caly

pt

leav

es. F

low

ers

Nov

emb

er-F

ebru

ary.

Nil.

Site

is in

po

or

cond

itio

n an

d m

id a

nd

und

erst

ore

y is

do

min

ated

b

y ex

oti

c sp

ecie

s.

Gen

ople

sium

b

auer

iB

auer

’s M

idg

e O

rchi

dE

1E

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

fro

m U

llad

ulla

to

Po

rt S

tep

hens

, wit

h o

nly

13 k

now

n ex

tant

po

pul

atio

ns. G

row

s in

sp

arse

scl

ero

phy

ll fo

rest

and

mo

ss g

ard

ens

over

san

dst

one

Nil.

Site

is in

po

or

cond

itio

n w

ith

a d

ense

exo

tic

mid

and

un

der

sto

rey.

No

mo

ss

gar

den

s ov

er s

and

sto

ne

pre

sent

.

Pte

rost

ylis

g

ibb

osa

Illaw

arra

Gre

enho

od

E1

ES

pec

ies

or

spec

ies

hab

itat

may

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Kno

wn

fro

m a

sm

all n

umb

er o

f p

op

ulat

ions

in

the

Illaw

arra

, Now

ra a

nd H

unte

r re

gio

ns. F

irst

co

llect

ed in

wes

tern

Syd

ney.

Onl

y vi

sib

le a

bov

e th

e g

roun

d b

etw

een

late

sum

mer

and

sp

ring

, an

d o

nly

whe

n so

il m

ois

ture

leve

ls c

an s

usta

in

its

gro

wth

. Gro

ws

in o

pen

fore

st o

r w

oo

dla

nd,

on

flat

or

gen

tly

slo

pin

g la

nd w

ith

po

or

dra

inag

e. In

the

Illa

war

ra r

egio

n, t

he s

pec

ies

gro

ws

in w

oo

dla

nd d

om

inat

ed b

y E

ucal

yptu

s te

retic

orni

s, E

. lon

gifo

lia a

nd M

elal

euca

dec

ora.

N

ear

Now

ra, t

he s

pec

ies

gro

ws

in a

n o

pen

fo

rest

of

Cor

ymb

ia m

acul

ata,

E.te

retic

orni

s an

d

E. p

anic

ulat

a. In

the

Hun

ter

reg

ion,

the

sp

ecie

s g

row

s in

op

en w

oo

dla

nd d

om

inat

ed b

y E

. cr

ebra

, E.te

retic

orni

s an

d C

allit

ris e

ndlic

heri.

Nil.

Site

is in

po

or

cond

itio

n an

d m

id a

nd

und

erst

ore

y is

do

min

ated

b

y ex

oti

c sp

ecie

s. L

ack

of

asso

ciat

ed s

pec

ies.

Page 93: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1484

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eP

tero

styl

is

saxi

cola

Syd

ney

Pla

ins

Gre

enho

od

E1

ES

pec

ies

or

spec

ies

hab

itat

kno

wn

to

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

); 7

re

cord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Occ

urs

in w

este

rn S

ydne

y b

etw

een

Pic

ton

and

F

reem

ans

Rea

ch. G

row

s in

sm

all p

ock

ets

of

shal

low

so

il in

dep

ress

ions

on

sand

sto

ne r

ock

sh

elve

s ab

ove

cliff

line

s. A

sso

ciat

ed v

eget

atio

n ab

ove

thes

e ro

ck s

helv

es is

scl

ero

phy

ll fo

rest

o

r w

oo

dla

nd o

n sh

ale

or

shal

e/sa

ndst

one

tr

ansi

tio

n so

ils.

Unl

ikel

y. L

ack

of

suit

able

sa

ndst

one

ro

ck s

helv

es

pre

sent

.

Thel

ymitr

a sp

. K

ang

alo

on

Kan

gal

oo

n S

un O

rchi

dE

4A

CE

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Onl

y kn

own

fro

m t

hree

loca

tio

ns n

ear

Ro

ber

tso

n in

the

So

uthe

rn H

ighl

and

s. G

row

s in

se

aso

nally

sw

amp

y se

dg

elan

d o

n g

rey

silt

y cl

ay

loam

at

60

0–7

00

m a

bov

e se

a le

vel.

Flo

wer

s in

la

te O

cto

ber

and

ear

ly N

ovem

ber

.

Nil.

Lac

k o

f sw

amp

y se

dg

elan

d p

rese

nt.

Gre

ville

a p

arvi

flora

su

bsp

. p

arvi

flora

Sm

all-

flow

er G

revi

llea

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14);

2

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

bet

wee

n M

oss

Val

e/B

arg

o a

nd lo

wer

H

unte

r V

alle

y, w

ith

mo

st o

ccur

renc

es in

Ap

pin

, W

edd

erb

urn,

Pic

ton

and

Bar

go.

Bro

ad h

abit

at

rang

e in

clud

ing

hea

th, s

hrub

by

wo

od

land

and

o

pen

fore

st o

n lig

ht c

lay

or

sand

y so

ils, a

nd

oft

en in

dis

turb

ed a

reas

suc

h as

on

the

frin

ges

o

f tr

acks

.

Unl

ikel

y. O

utsi

de

of

usua

l ar

ea o

f o

ccur

renc

e an

d

lack

of

dis

turb

ed e

dg

e ha

bit

at p

rese

nt t

hat

is

usua

lly fa

vour

ed b

y th

is

spec

ies.

Per

soon

ia

bar

goe

nsis

Bar

go

Gee

bun

gE

1V

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Res

tric

ted

to

the

wes

tern

ed

ge

of t

he W

oron

ora

Pla

teau

and

the

nor

ther

n ed

ge

of t

he S

outh

ern

Hig

hlan

ds,

bou

nded

by

Pic

ton,

Dou

gla

s P

ark,

Ya

nder

ra a

nd t

he C

atar

act

Riv

er. O

ccur

s in

w

ood

land

or

dry

scl

erop

hyll

fore

st o

n sa

ndst

one

and

cla

yey

late

rite

on h

eavi

er, w

ell d

rain

ed,

loam

y, g

rave

ly s

oils

of H

awke

sbur

y Sa

ndst

one

and

Wia

nam

atta

Sha

le. T

end

s to

occ

ur in

d

istu

rbed

are

as e

.g. r

oad

sid

es a

nd t

rail

mar

gin

s.

Nil.

Out

sid

e o

f us

ual a

rea

of

occ

urre

nce

and

lack

of

dis

turb

ed e

dg

e ha

bit

at

pre

sent

tha

t is

usu

ally

fa

vour

ed b

y th

is s

pec

ies.

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D |

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t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1485

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eP

erso

onia

hi

rsut

aH

airy

Gee

bun

gE

1E

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14);

4

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

wit

hin

the

Blu

e M

oun

tain

s, S

out

hern

H

ighl

and

s an

d S

ydne

y co

asta

l reg

ions

fro

m

Hill

top

to

Gle

n D

avis

and

Roy

al N

P t

o G

osf

ord

. P

op

ulat

ion

wit

hin

the

Hill

s S

hire

par

ticu

larl

y im

po

rtan

t d

ue t

o h

igh

den

sity

of

pla

nts.

Gro

ws

on

sand

y so

ils in

dry

scl

ero

phy

ll o

pen

fore

st,

wo

od

land

and

hea

th o

n sa

ndst

one

up

to

60

0m

ab

ove

sea

leve

l.

Unl

ikel

y. S

ite is

in p

oo

r co

ndit

ion

and

mid

and

un

der

sto

rey

is d

om

inat

ed

by

exo

tic

spec

ies.

Per

soon

ia

nuta

nsN

od

din

g G

eeb

ung

E1

ES

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

); 3

re

cord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Occ

urs

fro

m R

ichm

ond

to

Mac

qua

rie

Fie

lds

on

the

Cum

ber

land

Pla

in. G

row

s o

nly

on

aeo

lian

and

allu

vial

sed

imen

ts in

scl

ero

phy

ll fo

rest

and

w

oo

dla

nd v

eget

atio

n co

mm

unit

ies.

Lar

ges

t p

op

ulat

ions

occ

ur in

Ag

nes

Ban

ks W

oo

dla

nd o

r C

astl

erea

gh

Scr

ibb

ly G

um W

oo

dla

nd.

Unl

ikel

y. S

ite is

in p

oo

r co

ndit

ion

and

mid

and

un

der

sto

rey

is d

om

inat

ed

by

exo

tic

spec

ies.

Pom

ader

ris

bru

nnea

Bro

wn

Po

mad

erri

sV

VS

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

); 2

re

cord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Mai

nly

occ

urs

in S

W S

ydne

y (W

ollo

ndill

y an

d

Cam

den

LG

As)

, wit

h o

ther

po

pul

atio

ns in

the

H

awke

sbur

y-W

olle

mi r

egio

n, n

ear

Wal

cha

in

the

New

Eng

land

tab

lela

nds

and

Gip

psl

and

in

VIC

. In

NSW

, gro

ws

in m

ois

t w

oo

dla

nd o

r o

pen

fo

rest

on

clay

and

allu

vial

so

ils o

n flo

od

pla

ins

and

cre

ek li

nes.

Nea

r Sy

dne

y o

ccur

s in

op

en

wo

od

land

do

min

ated

by

E. a

mp

lifol

ia w

ith

Allo

casu

arin

a sp

. and

Bur

saria

sp

. und

erst

ore

y,

or

on

allu

vial

flat

s w

ith

euca

lyp

ts in

clud

ing

E.

elat

a, E

. pip

erita

and

E. p

unct

ata

(Sut

ter

2011

).

Unl

ikel

y. O

utsi

de

of

usua

l are

a o

f o

ccur

renc

e an

d la

ck o

f as

soci

ated

sp

ecie

s.

Page 95: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1486

Scie

ntifi

c na

me

Com

mon

nam

eTS

C

Act

st

atus

EP

BC

A

ct

Stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eA

ster

olas

ia

eleg

ans

E1

ES

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

nort

h o

f Sy

dne

y, in

the

Bau

lkha

m H

ills,

H

awke

sbur

y an

d H

orn

sby

LGA

s, m

ay a

lso

o

ccur

in t

he w

este

rn p

art

of

Go

sfo

rd L

GA

. 7

know

n p

op

ulat

ions

. Occ

urs

on

Haw

kesb

ury

sand

sto

ne, c

om

mo

nly

amo

ngst

ro

cky

out

cro

ps

and

bo

uld

ers

in s

helte

red

fore

sts

on

mid

- to

lo

wer

slo

pes

and

val

leys

.

Nil.

Lac

k o

f ro

cky

out

cro

p h

abit

at p

rese

nt

and

out

sid

e o

f us

ual a

rea

of

occ

urre

nce.

Pim

elea

cu

rvifl

ora

var.

curv

iflor

a

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Co

nfine

d t

o a

rea

bet

wee

n no

rth

Syd

ney

in t

he

sout

h an

d M

aro

ota

in t

he n

ort

h-w

est.

Fo

rmer

ra

nge

exte

nded

to

Par

ram

atta

Riv

er in

clud

ing

F

ive

Do

ck, B

elle

vue

Hill

and

Man

ly. G

row

s o

n sh

aley

/lat

erit

ic s

oils

ove

r sa

ndst

one

and

sha

le/

sand

sto

ne t

rans

itio

n so

ils o

n ri

dg

eto

ps

and

up

per

slo

pes

am

ong

st w

oo

dla

nds.

Oft

en g

row

s am

ong

st d

ense

gra

sses

and

sed

ges

. Flo

wer

s O

cto

ber

to

May

.

Unl

ikel

y. S

ite is

in p

oo

r co

ndit

ion

and

mid

and

un

der

sto

rey

is d

om

inat

ed

by

exo

tic

spec

ies.

Pim

elea

sp

icat

aS

pik

ed R

ice-

flow

erE

1E

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14);

42

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Dis

junc

t p

op

ulat

ions

wit

hin

the

Cum

ber

land

P

lain

(fr

om

Mo

unt

Ann

an a

nd N

arel

lan

Val

e to

F

reem

ans

Rea

ch a

nd P

enri

th t

o G

eorg

es H

all)

an

d Il

law

arra

(fr

om

Mt

War

rig

al t

o G

erro

a)

(DE

C 2

00

5). I

n th

e C

umb

erla

nd P

lain

reg

ion,

re

stri

cted

to

are

as w

hich

sup

po

rt o

r hi

sto

rica

lly

sup

po

rted

Cum

ber

land

Pla

in W

oo

dla

nd. G

row

s o

n w

ell-

stru

ctur

ed c

lay

soils

der

ived

fro

m

Wia

nam

atta

Sha

le. I

n th

e Ill

awar

ra, g

row

s o

n va

riab

le s

oils

in c

lose

pro

xim

ity

to t

he c

oas

t o

n hi

lls o

r co

asta

l hea

dla

nds.

Inha

bit

s co

asta

l w

oo

dla

nd o

r g

rass

land

wit

h em

erg

ent

shru

bs

(DE

C 2

00

5).

Nil.

No

sui

tab

le

Cum

ber

land

Pla

in

Wo

od

land

hab

itat

p

rese

nt.

Page 96: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1487

Thre

aten

ed fa

una

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eB

irds

Hie

raae

tus

mor

phn

oid

esLi

ttle

Eag

leV

9

rec

ord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Occ

urs

thro

ugho

ut N

SW e

xcep

t m

ost

den

sely

fore

sted

p

arts

of

the

Div

idin

g R

ang

e es

carp

men

t. O

ccup

ies

hab

itat

s ri

ch in

pre

y w

ithi

n o

pen

euc

alyp

t fo

rest

, wo

od

land

or

op

en w

oo

dla

nd. S

heo

ak o

r ac

acia

wo

od

land

s an

d r

ipar

ian

wo

od

land

s o

f in

teri

or

NSW

are

als

o u

sed

. Fo

r ne

st s

ites

it

req

uire

s a

tall

livin

g t

ree

wit

hin

a re

mna

nt p

atch

, whe

re p

airs

b

uild

a la

rge

stic

k ne

st in

win

ter

and

lay

in e

arly

sp

ring

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Lop

hoic

tinia

isur

aS

qua

re-

taile

d K

iteV

1 r

eco

rd w

ithi

n 10

 km

(O

EH

, 20

14a)

Occ

urs

acro

ss N

SW, r

esid

ent

in N

ort

h, n

ort

heas

t an

d a

long

w

est-

flow

ing

riv

ers.

Sum

mer

bre

edin

g m

igra

nt t

o s

out

heas

t o

f st

ate.

Inha

bit

s a

vari

ety

of

hab

itat

s in

clud

ing

wo

od

land

s an

d o

pen

fore

sts,

wit

h p

refe

renc

e fo

r ti

mb

ered

wat

erco

urse

s.

Favo

urs

pro

duc

tive

fore

sts

on

the

coas

tal p

lain

, box

-iro

nbar

k-g

um w

oo

dla

nds

on

the

inla

nd s

lop

es, a

nd C

oo

libah

/Riv

er R

ed

Gum

on

the

inla

nd p

lain

s. In

Syd

ney

area

nes

ts in

mat

ure

livin

g

tree

s w

ithi

n 10

0m

of

ephe

mer

al/p

erm

anen

t w

ater

cour

se.

Larg

e ho

me

rang

e >

100

km

2 .

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Stic

tone

tta

naev

osa

Fre

ckle

d

Duc

kV

1 r

eco

rd w

ithi

n 10

 km

(O

EH

, 20

14a)

Bre

eds

in la

rge,

ep

hem

eral

sw

amp

s in

the

Mur

ray-

Dar

ling

, p

arti

cula

rly

alo

ng t

he P

aro

o a

nd L

achl

an R

iver

s an

d o

ther

R

iver

ina

rive

rs. I

n d

rier

tim

es m

oves

to

mo

re p

erm

anen

t w

ater

s. D

isp

erse

s d

urin

g e

xten

sive

inla

nd d

roug

hts

and

may

b

e fo

und

in c

oas

tal a

reas

dur

ing

suc

h ti

mes

. Pre

fers

fre

shw

ater

sw

amp

s/cr

eeks

wit

h d

ense

Cum

bun

gi,

Lig

num

or

tea-

tree

. N

ests

in d

ense

veg

etat

ion

at o

r ne

ar w

ater

leve

l.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Bot

auru

s p

oici

lop

tilus

Aus

tral

asia

n B

itte

rnE

1E

Sp

ecie

s o

r sp

ecie

s ha

bit

at

likel

y to

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Wid

esp

read

but

unc

om

mo

n ov

er m

ost

NSW

exc

ept

the

nort

hwes

t. Fa

vour

s p

erm

anen

t fr

eshw

ater

wet

land

s w

ith

tall

den

se r

eed

bed

s p

arti

cula

rly

Typ

ha s

pp

.and

Ele

ocha

ris s

pp

., w

ith

adja

cent

sha

llow

, op

en w

ater

for

fora

gin

g. R

oo

sts

dur

ing

th

e d

ay a

mo

ngst

den

se r

eed

s o

r ru

shes

and

feed

s m

ainl

y at

ni

ght

on

fro

gs,

fish

, yab

bie

s, s

pid

ers,

inse

cts

and

sna

ils.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 97: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1488

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eC

allo

cep

halo

n fim

bria

tum

Gan

g-g

ang

C

ock

ato

oV

2

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Res

tric

ted

to

the

so

uth-

east

ern

coas

t an

d h

ighl

and

s, f

rom

th

e lo

wer

Hun

ter

and

no

rthe

rn B

lue

Mo

unta

ins

to t

he

So

uthw

este

rn S

lop

es, s

out

h to

and

co

ntig

uous

wit

h th

e V

icto

rian

po

pul

atio

n. In

hab

its

euca

lyp

t o

pen

fore

sts

and

w

oo

dla

nds

wit

h an

aca

cia

und

erst

ore

y. In

sum

mer

it li

ves

in

mo

ist

hig

hlan

d fo

rest

typ

es, a

nd in

win

ter

it m

oves

to

mo

re

op

en t

ypes

at

low

er e

leva

tio

ns. T

he G

ang

-Gan

g C

ock

ato

o

nest

s in

ho

llow

s in

the

tru

nks,

lim

bs

or

dea

d s

po

uts

of

tall

livin

g t

rees

, esp

ecia

lly e

ucal

ypts

, oft

en n

ear

wat

er. T

he G

ang

-g

ang

Co

ckat

oo

feed

s o

n se

eds

ob

tain

ed in

tre

es a

nd s

hrub

s,

mo

stly

fro

m e

ucal

ypts

and

wat

tles

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Cal

ypto

rhyn

chus

la

tham

iG

loss

y B

lack

-C

ock

ato

o

V

1 rec

ord

wit

hin

10 k

m (

OE

H,

2014

a)

Wid

esp

read

but

unc

om

mo

n fr

om

co

ast

to s

out

hern

tab

lela

nds

and

cen

tral

wes

tern

pla

ins.

Fee

ds

alm

ost

exc

lusi

vely

on

the

seed

s o

f A

lloca

suar

ina

spec

ies.

Pre

fers

wo

od

land

and

op

en

fore

sts,

rar

ely

away

fro

m A

lloca

suar

ina.

Ro

ost

in le

afy

cano

py

tree

s, p

refe

rab

ly e

ucal

ypts

, usu

ally

<1k

m f

rom

feed

ing

site

. N

ests

in la

rge

(ap

pro

x. 2

0cm

) ho

llow

s in

tre

es, s

tum

ps

or

limb

s, u

sual

ly in

Euc

alyp

ts (

Hig

gin

s 19

99

).

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Ep

hip

pio

rhyn

chus

as

iatic

usB

lack

-ne

cked

St

ork

E1

1 r

eco

rd w

ithi

n 10

 km

(O

EH

, 20

14a)

In N

SW, b

eco

mes

incr

easi

ngly

unc

om

mo

n so

uth

of

the

No

rthe

rn R

iver

s re

gio

n, a

nd r

arel

y o

ccur

s so

uth

of

Syd

ney.

B

reed

ing

rec

ord

ed a

s fa

r so

uth

as B

ulad

elah

, tho

ugh

mo

st

bre

edin

g in

NSW

occ

urs

in t

he n

ort

h-ea

st. P

rim

arily

inha

bit

s p

erm

anen

t fr

eshw

ater

wet

land

s an

d s

urro

und

ing

veg

etat

ion

incl

udin

g s

wam

ps,

flo

od

pla

ins,

wat

erco

urse

s an

d b

illab

ong

s,

fres

hwat

er m

ead

ows,

wet

hea

thla

nd, f

arm

dam

s an

d

shal

low

flo

od

wat

ers.

Will

als

o fo

rag

e in

inte

r-ti

dal

sho

relin

es,

man

gro

ve m

arg

ins

and

est

uari

es. F

eed

s in

sha

llow

, sti

ll w

ater

. B

reed

s d

urin

g s

umm

er, n

esti

ng in

or

near

a f

resh

wat

er s

wam

p.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 98: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1489

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eD

asyo

rnis

b

rach

ypte

rus

Eas

tern

B

rist

leb

irdE

1E

Sp

ecie

s o

r sp

ecie

s ha

bit

at

likel

y to

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

in t

hree

dis

junc

t ar

eas

of

sout

h-ea

ster

n A

ustr

alia

: so

uthe

rn Q

ueen

slan

d/n

ort

hern

NSW

, the

Illa

war

ra R

egio

n an

d in

the

vic

init

y o

f th

e N

SW/V

icto

rian

bo

rder

. Illa

war

ra

po

pul

atio

n co

mp

rise

s an

est

imat

ed 16

00

bird

s, m

ainl

y fr

om

B

arre

n G

roun

ds

Nat

ure

Res

erve

, Bud

der

oo

Nat

iona

l Par

k an

d t

he J

ervi

s B

ay a

rea.

Hab

itat

cha

ract

eris

ed b

y d

ense

, low

ve

get

atio

n in

clud

ing

hea

th a

nd o

pen

wo

od

land

wit

h a

heat

hy

und

erst

ore

y. T

he fi

re h

isto

ry o

f ha

bit

at is

imp

ort

ant,

and

the

Ill

awar

ra a

nd s

out

hern

po

pul

atio

ns r

each

max

imum

den

siti

es

in h

abit

at t

hat

have

no

t b

een

bur

nt fo

r ov

er 15

yea

rs.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Ant

hoch

aera

p

hryg

iaR

egen

t H

one

yeat

erE

4A

E1 r

eco

rd f

rom

19

84 w

ithi

n 10

 km

(O

EH

, 20

14a)

; Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

occ

ur w

ithi

n 10

 km

(D

oT

E,

2014

)

In N

SW c

onfi

ned

to

tw

o k

now

n b

reed

ing

are

as: t

he C

aper

tee

Val

ley

and

Bun

dar

ra-B

arra

ba

reg

ion.

No

n-b

reed

ing

flo

cks

occ

asio

nally

see

n in

co

asta

l are

as fo

rag

ing

in fl

ower

ing

S

po

tted

Gum

and

Sw

amp

Mah

og

any

fore

sts,

pre

sum

ably

in

resp

ons

e to

dro

ught

. Inh

abit

s d

ry o

pen

fore

st a

nd w

oo

dla

nds,

p

arti

cula

rly

Box

-Iro

nbar

k w

oo

dla

nd a

nd r

ipar

ian

fore

sts

of

Riv

er S

heo

ak, w

ith

an a

bun

dan

ce o

f m

atur

e tr

ees,

hig

h ca

nop

y co

ver

and

ab

und

ance

of

mis

tlet

oes

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Ep

thia

nura

al

bifr

ons

Whi

te-

fro

nted

Cha

tV,

E2

1 r

eco

rd w

ithi

n 10

 km

(O

EH

, 20

14a)

This

sp

ecie

s o

ccur

s fr

om

so

uthe

rn Q

ueen

slan

d t

o W

este

rn

Aus

tral

ia a

nd d

own

to T

asm

ania

, mo

stly

in t

emp

erat

e to

ar

id c

limat

es a

nd v

ery

rare

ly in

sub

-tro

pic

al a

reas

. It

is fo

und

in

dam

p o

pen

hab

itat

s, p

arti

cula

rly

wet

land

s co

ntai

ning

sa

ltm

arsh

are

as t

hat

are

bo

rder

ed b

y o

pen

gra

ssla

nds.

Alo

ng

the

coas

t th

ey a

re fo

und

in e

stua

rine

and

mar

shy

hab

itat

s w

ith

veg

etat

ion

<1m

tal

l, an

d in

op

en g

rass

land

s an

d a

reas

b

ord

erin

g w

etla

nds.

Inla

nd, t

hey

are

oft

en o

bse

rved

in g

rass

y p

lain

s, s

altl

akes

and

sal

tpan

s al

ong

wat

erw

ay m

arg

ins.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 99: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1490

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eM

elith

rep

tus

gul

aris

g

ular

isB

lack

-ch

inne

d

Ho

neye

ater

(e

aste

rn

sub

spec

ies)

V

3 re

cord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Wid

esp

read

in N

SW, b

ut r

arel

y re

cord

ed e

ast

of

Gre

at

Div

idin

g R

ang

e ex

cep

t in

Ric

hmo

nd a

nd C

lare

nce

Riv

er

area

s an

d s

catt

ered

site

s in

the

Hun

ter,

Cen

tral

Co

ast

and

Ill

awar

ra r

egio

ns. M

ost

ly in

up

per

leve

ls o

f d

rier

op

en fo

rest

s /

wo

od

land

s d

om

inat

ed b

y b

ox a

nd ir

onb

ark

euca

lyp

ts, o

r le

ss

com

mo

nly

smo

oth

-bar

ked

gum

s, s

trin

gyb

arks

and

tea

-tre

as.

Fo

rag

e ov

er h

om

e ra

nge

of

>5 h

a. T

end

to

occ

ur w

ithi

n la

rges

t w

oo

dla

nd p

atch

es in

the

land

scap

e. T

hey

fora

ge

for

inse

cts,

ne

ctar

and

ho

neyd

ew. T

he n

est

is h

idd

en b

y fo

liag

e hi

gh

in t

he

crow

n o

f a

tree

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Dap

hoen

ositt

a ch

ryso

pte

raV

arie

d

Sit

tella

V

33 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a)

Sed

enta

ry, o

ccur

s ac

ross

NSW

fro

m t

he c

oas

t to

the

far

wes

t.

Inha

bit

s eu

caly

pt

fore

sts

and

wo

od

land

s, e

spec

ially

ro

ugh-

bar

ked

sp

ecie

s an

d m

atur

e sm

oo

th-b

arke

d g

ums

wit

h d

ead

b

ranc

hes,

mal

lee

and

Aca

cia

wo

od

land

. Sen

siti

ve t

o h

abit

at

iso

lati

on

and

loss

of

stru

ctur

al c

om

ple

xity

, and

ad

vers

ely

affec

ted

by

do

min

ance

of

No

isy

Min

ers.

Cle

ared

ag

ricu

ltur

al

land

is p

ote

ntia

lly a

bar

rier

to

mov

emen

t. B

uild

s a

cup

-sha

ped

ne

st o

f p

lant

fib

res

and

co

bw

ebs

in a

n up

rig

ht t

ree

fork

hig

h in

th

e liv

ing

tre

e ca

nopy

, and

oft

en r

e-us

es t

he s

ame

fork

or

tree

in

suc

cess

ive

year

s.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Pet

roic

a b

ood

ang

Sca

rlet

R

ob

inV

10

rec

ord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

In N

SW o

ccur

s fr

om

co

ast

to in

land

slo

pes

. Bre

eds

in

dri

er e

ucal

ypt

fore

sts

and

tem

per

ate

wo

od

land

s, o

ften

on

rid

ges

and

slo

pes

, wit

hin

op

en u

nder

sto

rey

of

shru

bs

and

g

rass

es a

nd s

om

etim

es in

op

en a

reas

. In

autu

mn

and

win

ter

it m

igra

tes

to m

ore

op

en h

abit

ats

such

as

gra

ssy

op

en

wo

od

land

or

pad

do

cks

wit

h sc

atte

red

tre

es. A

bun

dan

t lo

gs

and

co

arse

wo

od

y d

ebri

s ar

e im

po

rtan

t ha

bit

at c

om

po

nent

s.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 100: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1491

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eG

loss

opsi

tta

pus

illa

Litt

le

Lori

keet

V

10 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a)

Occ

urs

fro

m c

oas

t to

wes

tern

slo

pes

of

the

Gre

at D

ivid

ing

R

ang

e. In

hab

its

dry

, op

en e

ucal

ypt

fore

sts

and

wo

od

land

s.

Occ

urre

nce

is p

osi

tive

ly a

sso

ciat

ed w

ith

pat

ch s

ize,

and

wit

h co

mp

one

nts

of

hab

itat

co

mp

lexi

ty in

clud

ing

can

op

y co

ver,

shru

b c

over

, gro

und

cov

er, l

og

s, fa

llen

bra

nche

s an

d li

tter

. F

eed

pri

mar

ily o

n p

rofu

sely

-flow

erin

g e

ucal

ypts

and

a v

arie

ty

of

oth

er s

pec

ies

incl

udin

g m

elal

euca

s an

d m

istl

eto

es. O

n th

e w

este

rn s

lop

es a

nd t

able

land

s E

ucal

yptu

s al

ben

s an

d E

. m

ellio

dor

a ar

e p

arti

cula

rly

imp

ort

ant

foo

d s

our

ces

for

po

llen

and

nec

tar

resp

ecti

vely

. Mo

stly

nes

ts in

sm

all (

op

enin

g a

pp

rox.

3c

m)

hollo

ws

in li

ving

, sm

oo

th-b

arke

d e

ucal

ypts

, esp

ecia

lly

Euc

alyp

tus

vim

inal

is, E

. bla

kely

i and

E. d

ealb

ata.

Mo

st

bre

edin

g r

eco

rds

are

fro

m t

he w

este

rn s

lop

es.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Lath

amus

dis

colo

rSw

ift P

arro

tE

1E

4 r

eco

rds

wit

hin

10 k

m (

OE

H,

2014

a); S

pec

ies

or

spec

ies

hab

itat

like

ly

to o

ccur

wit

hin

10 k

m (

Do

TE

, 20

14)

Mig

rato

ry, t

rave

lling

to

the

mai

nlan

d f

rom

Mar

ch t

o O

cto

ber

. B

reed

s in

Tas

man

ia f

rom

Sep

tem

ber

to

Jan

uary

. On

the

mai

nlan

d, i

t m

ost

ly o

ccur

s in

the

so

uthe

ast

fora

gin

g o

n w

inte

r flo

wer

ing

euc

alyp

ts a

nd le

rps,

wit

h re

cord

s o

f th

e sp

ecie

s b

etw

een

Ad

elai

de

and

Bri

sban

e. P

rinc

ipal

ove

r-w

inte

r ha

bit

at

is b

ox-i

ronb

ark

com

mun

itie

s o

n th

e in

land

slo

pes

and

pla

ins.

E

ucal

yptu

s ro

bus

ta, C

orym

bia

mac

ulat

a an

d C

. gum

mife

ra

do

min

ated

co

asta

l fo

rest

s ar

e al

so im

po

rtan

t ha

bit

at.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Ros

trat

ula

aust

ralis

Aus

tral

ian

Pai

nted

S

nip

e

E1

ES

pec

ies

or

spec

ies

hab

itat

lik

ely

to o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

No

rmal

ly fo

und

in p

erm

anen

t o

r ep

hem

eral

sha

llow

inla

nd

wet

land

s, e

ithe

r fr

eshw

ater

or

bra

ckis

h. N

ests

on

the

gro

und

am

ong

st t

all r

eed

-lik

e ve

get

atio

n ne

ar w

ater

. Fee

ds

on

mud

flats

and

the

wat

er’s

ed

ge

taki

ng in

sect

s, w

orm

and

se

eds.

Pre

fers

fri

nges

of

swam

ps,

dam

s an

d n

earb

y m

arsh

y ar

eas

wit

h co

ver

of

gra

sses

, lig

num

, low

scr

ub o

r o

pen

tim

ber

.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

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GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1492

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eN

inox

str

enua

Pow

erfu

l O

wl

V

4 r

eco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

fro

m t

he c

oas

t to

the

wes

tern

slo

pes

. So

litar

y an

d

sed

enta

ry s

pec

ies.

Inha

bit

s a

rang

e o

f ha

bit

ats

fro

m w

oo

dla

nd

and

op

en s

cler

op

hyll

fore

st t

o t

all o

pen

wet

fore

st a

nd

rain

fore

st. P

refe

rs la

rge

trac

ts o

f ve

get

atio

n. N

ests

in la

rge

tree

ho

llow

s (>

0.5

m d

eep)

, in

larg

e eu

caly

pts

(d

bh

80-2

40

cm

) th

at a

re a

t le

ast

150

yea

rs o

ld. P

airs

hav

e hi

gh

fidel

ity

to

a sm

all n

umb

er o

f ho

llow

-bea

ring

nes

t tr

ees

and

def

end

a

larg

e ho

me

rang

e o

f 4

00

- 1,

450

ha.

Fo

rag

es w

ithi

n o

pen

and

cl

ose

d w

oo

dla

nds

as w

ell a

s o

pen

are

as.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Mam

mal

s

Das

yuru

s m

acul

atus

Sp

ott

ed-

taile

d Q

uoll

VE

1 rec

ord

wit

hin

10 k

m (

OE

H,

2014

a); S

pec

ies

or

spec

ies

hab

itat

kno

wn

to o

ccur

wit

hin

10 k

m (

Do

TE

, 20

14)

Inha

bit

s a

rang

e o

f en

viro

nmen

ts in

clud

ing

rai

nfo

rest

, op

en

fore

st, w

oo

dla

nd, c

oas

tal h

eath

and

inla

nd r

ipar

ian

fore

st, f

rom

th

e su

b-a

lpin

e zo

ne t

o t

he c

oas

tlin

e. D

en s

ites

are

in h

ollo

w-

bea

ring

tre

es, f

alle

n lo

gs,

sm

all c

aves

, ro

ck c

revi

ces,

bo

uld

er

field

s an

d r

ock

y-cl

iff fa

ces.

Fem

ales

occ

upy

hom

e ra

nges

o

f up

to

750

ha

and

mal

es u

p t

o 3

,50

0 h

a, u

sual

ly t

rave

rsed

al

ong

den

sely

veg

etat

ed c

reek

line

s.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Sacc

olai

mus

fla

vive

ntris

Yello

w-

bel

lied

S

heat

htai

l-b

at

V

2 re

cord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Mig

rate

s fr

om

tro

pic

s to

SE

Aus

in s

umm

er. F

ora

ges

acr

oss

a

rang

e o

f ha

bit

ats

incl

udin

g t

hose

wit

h an

d w

itho

ut t

rees

, fr

om

wet

and

dry

scl

ero

phy

ll fo

rest

, op

en w

oo

dla

nd, A

caci

a sh

rub

land

, mal

lee,

gra

ssla

nds

and

des

ert.

Ro

ost

s co

mm

unal

ly

in la

rge

tree

ho

llow

s an

d b

uild

ing

s (C

hurc

hill

200

8).

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

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GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1493

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eP

etro

gal

e p

enic

illat

aB

rush

-tai

led

R

ock

-w

alla

by

E1

VS

pec

ies

or

spec

ies

hab

itat

lik

ely

to o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

fro

m t

he S

hoal

have

n no

rth

to t

he Q

ueen

slan

d b

ord

er.

Now

mo

stly

ext

inct

wes

t o

f th

e G

reat

Div

idin

g R

ang

e,

exce

pt

in t

he W

arru

mb

ung

les

and

Mt

Kap

utar

. Occ

urs

on

rock

y es

carp

men

ts, o

utcr

op

s an

d c

liffs

wit

h a

pre

fere

nce

for

com

ple

x st

ruct

ures

wit

h fis

sure

s, c

aves

and

led

ges

faci

ng

nort

h. D

iet

cons

ists

of

veg

etat

ion

in a

dja

cent

to

ro

cky

area

s ea

ting

gra

sses

and

forb

s as

wel

l as

the

folia

ge

and

fru

its

of

shru

bs

and

tre

es.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Mor

mop

teru

s no

rfol

kens

isE

aste

rn

Fre

etai

l-b

atV

12

rec

ord

s w

ithi

n 10

 km

(O

EH

, 20

14a)

Occ

urs

in d

ry s

cler

op

hyll

fore

st a

nd w

oo

dla

nd e

ast

of

the

Gre

at D

ivid

ing

Ran

ge.

Fo

rag

es in

nat

ural

and

art

ifici

al

op

enin

gs

in v

eget

atio

n, t

ypic

ally

wit

hin

a fe

w k

ilom

etre

s o

f it

s ro

ost

. Ro

ost

s p

rim

arily

in t

ree

hollo

ws

but

als

o r

eco

rded

fro

m

man

-mad

e st

ruct

ures

or

und

er b

ark

(Chu

rchi

ll 20

08)

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Pse

udom

ys

nova

ehol

land

iae

New

H

olla

nd

Mo

use

PV

Sp

ecie

s o

r sp

ecie

s ha

bit

at

likel

y to

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

in d

isju

nct,

coas

tal p

op

ulat

ions

fro

m T

asm

ania

to

Q

ueen

slan

d. I

n N

SW in

hab

its

a va

riet

y o

f co

asta

l hab

itat

s in

clud

ing

hea

thla

nd, w

oo

dla

nd, d

ry s

cler

op

hyll

fore

st w

ith

a d

ense

shr

ub la

yer

and

veg

etat

ed s

and

dun

es (

Wils

on

and

B

rad

tke

199

9).

Po

pul

atio

ns m

ay r

eco

loni

se/

incr

ease

in s

ize

in r

egen

erat

ing

nat

ive

veg

etat

ion

afte

r w

ildfir

e, c

lear

ing

and

sa

ndm

inin

g. P

rese

nce

stro

ngly

co

rrel

ated

wit

h un

der

sto

rey

veg

etat

ion

den

sity

, and

hig

h flo

rist

ic d

iver

sity

in r

egen

erat

ing

he

ath

(Lo

ck a

nd W

ilso

n 19

99

).

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Isoo

don

ob

esul

us

obes

ulus

So

uthe

rn

Bro

wn

Ban

dic

oo

t (e

aste

rn)

E1

ES

pec

ies

or

spec

ies

hab

itat

m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

mai

nly

in 2

are

as: K

u-ri

ng-g

ai C

hase

and

Gar

igal

N

atio

nal P

arks

N o

f Sy

dne

y, a

nd fa

r S

E N

SW in

clud

ing

B

en B

oyd

Nat

iona

l Par

k, E

ast

Boy

d S

tate

Fo

rest

, Nad

gee

N

atur

e R

eser

ve, N

adg

ee S

tate

Fo

rest

, So

uth

Eas

t F

ore

st a

nd

Yam

bul

la S

tate

Fo

rest

but

als

o o

ccur

s b

etw

een

thes

e ar

eas.

In

hab

its

scru

bby

veg

etat

ion,

incl

udin

g h

eath

, shr

ubla

nd, a

nd

heat

hy fo

rest

and

wo

od

land

. Oft

en a

sso

ciat

ed w

ith

wel

l-d

rain

ed s

oils

and

dry

hea

thla

nd c

om

mun

itie

s, a

nd p

refe

rs

per

iod

ical

ly b

urnt

are

as a

s th

is in

crea

ses

inse

ct a

bun

dan

ce.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 103: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1494

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eP

etau

rus

norf

olce

nsis

Sq

uirr

el

Glid

erV

1 r

eco

rd w

ithi

n 10

 km

(O

EH

, 20

14a)

Occ

urs

alo

ng t

he d

rier

inla

nd s

lop

es a

s w

ell a

s co

asta

l ha

bit

ats.

Inha

bit

s w

oo

dla

nd a

nd o

pen

fore

st w

ith

a E

ucal

yptu

s, C

orym

bia

or

Ang

opho

ra o

vers

tore

y an

d a

shr

ubby

un

der

sto

rey

of

Aca

cia

or

Ban

ksia

. Key

hab

itat

co

mp

one

nts

incl

ude

relia

ble

win

ter

and

ear

ly-s

pri

ng fl

ower

ing

Euc

alyp

ts,

Ban

ksia

or

oth

er n

ecta

r so

urce

s, a

nd h

ollo

w-b

eari

ng t

rees

for

roo

st a

nd n

est

site

s (v

an d

er R

ee a

nd S

uckl

ing

20

08,

Qui

n et

al 2

00

4),

wit

h so

cial

gro

ups

mov

ing

bet

wee

n m

ulti

ple

ho

llow

s. S

oci

al g

roup

s in

clud

e o

ne o

r tw

o a

dul

t m

ales

and

fe

mal

es w

ith

off

spri

ng, a

nd h

ave

hom

e ra

nges

of

5-10

ha w

ithi

n N

SW (

van

der

Ree

and

Suc

klin

g 2

00

8, K

avan

agh

200

4).

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Pha

scol

arct

os

cine

reus

Ko

ala

VV

758

reco

rds

wit

hin

10 k

m

(OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at

know

n to

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

fro

m c

oas

t to

inla

nd s

lop

es a

nd p

lain

s. R

estr

icte

d

to a

reas

of

pre

ferr

ed fe

ed t

rees

in e

ucal

ypt

wo

od

land

s an

d

fore

sts.

Ho

me

rang

e va

ries

dep

end

ing

on

hab

itat

qua

lity,

fro

m

< 2

to s

ever

al h

und

red

hec

tare

s.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Pot

orou

s tr

idac

tylu

sLo

ng-n

ose

d

Po

toro

o,

Co

bak

i La

kes

and

Tw

eed

H

ead

s W

est

po

pul

atio

n

E2,

VV

Sp

ecie

s o

r sp

ecie

s ha

bit

at

may

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Res

tric

ted

to

eas

t o

f th

e G

reat

Div

idin

g R

ang

e, w

ith

annu

al

rain

fall

>76

0 m

m. I

nhab

its

coas

tal h

eath

and

dry

and

wet

sc

lero

phy

ll fo

rest

s. R

equi

res

rela

tive

ly t

hick

gro

und

cov

er a

nd

app

ears

res

tric

ted

to

are

as o

f lig

ht a

nd s

and

y so

il (J

ohn

sto

n 20

08)

. Fee

ds

on

fung

i, ro

ots

, tub

ers,

inse

cts

and

the

ir la

rvae

, an

d o

ther

so

ft-b

od

ied

ani

mal

s in

the

so

il.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 104: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GH

D |

Tran

spor

t fo

r N

SW –

Pow

er S

upp

ly U

pg

rad

e P

rog

ram

– M

into

Sub

stat

ion

RE

F |

July

20

1495

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eP

tero

pus

p

olio

cep

halu

sG

rey-

head

ed

Fly

ing

-fox

VV

22 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at

know

n to

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Ro

ost

s in

cam

ps

wit

hin

20 k

m o

f a

reg

ular

foo

d s

our

ce,

typ

ical

ly in

gul

lies,

clo

se t

o w

ater

and

in v

eget

atio

n w

ith

a d

ense

can

opy

. Fo

rag

es in

sub

tro

pic

al a

nd t

emp

erat

e ra

info

rest

s, t

all s

cler

op

hyll

fore

sts

and

wo

od

land

s, h

eath

s,

swam

ps

and

str

eet

tree

s, p

arti

cula

rly

in e

ucal

ypts

, mel

aleu

cas

and

ban

ksia

s. H

ighl

y m

ob

ile w

ith

mov

emen

ts la

rgel

y d

eter

min

ed b

y fo

od

ava

ilab

ility

(E

by a

nd L

aw 2

00

8). W

ill a

lso

fo

rag

e in

urb

an g

ard

ens

and

cul

tiva

ted

fru

it c

rop

s.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Cha

linol

obus

d

wye

riLa

rge-

eare

d

Pie

d B

atV

V2

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a); S

pec

ies

or

spec

ies

hab

itat

may

o

ccur

wit

hin

10 k

m (

Do

TE

, 20

14)

Occ

urs

fro

m t

he c

oas

t to

the

wes

tern

slo

pes

of

the

div

ide.

La

rges

t nu

mb

ers

of

reco

rds

fro

m s

and

sto

ne e

scar

pm

ent

coun

try

in t

he S

ydne

y B

asin

and

Hun

ter

Val

ley

(Hoy

e an

d

Sch

ulz

200

8). R

oo

sts

in c

aves

and

min

es a

nd m

ost

co

mm

onl

y re

cord

ed f

rom

dry

scl

ero

phy

ll fo

rest

s an

d w

oo

dla

nds.

An

inse

ctiv

oro

us s

pec

ies

that

flie

s ov

er t

he c

ano

py

or

alo

ng

cree

k b

eds

(Chu

rchi

ll 20

08)

. In

sout

hern

Syd

ney

app

ears

to

be

larg

ely

rest

rict

ed t

o t

he in

terf

ace

bet

wee

n sa

ndst

one

es

carp

men

ts a

nd fe

rtile

val

leys

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Fals

istr

ellu

s ta

sman

iens

isE

aste

rn

Fals

e P

ipis

trel

le

V

9 r

eco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Occ

urs

on

sout

heas

t co

ast

and

ran

ges

. Pre

fers

tal

l (>2

0m

) an

d w

et fo

rest

wit

h d

ense

und

erst

ore

y. A

bse

nt f

rom

sm

all

rem

nant

s, p

refe

rrin

g c

ont

inuo

us fo

rest

but

can

mov

e th

roug

h cl

eare

d la

ndsc

apes

and

may

fora

ge

in o

pen

are

as. R

oo

sts

in

hollo

w t

runk

s o

f E

ucal

ypts

, und

erne

ath

bar

k o

r in

bui

ldin

gs.

F

ora

ges

in g

aps

and

sp

aces

wit

hin

fore

st, w

ith

larg

e fo

rag

ing

ra

nge

(12k

m fo

rag

ing

mov

emen

ts r

eco

rded

) (C

hurc

hill

200

8,

Law

et

al 2

00

8).

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 105: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 96

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eM

inio

pte

rus

schr

eib

ersi

i oc

eane

nsis

Eas

tern

B

entw

ing

-b

at

V

9 r

eco

rds

wit

hin

10 k

m (

OE

H,

2014

a)

Gen

eral

ly o

ccur

s ea

st o

f th

e G

reat

Div

idin

g R

ang

e al

ong

NSW

co

ast

(Chu

rchi

ll 20

08)

. Inh

abit

s va

rio

us h

abit

ats

fro

m o

pen

g

rass

land

s to

wo

od

land

s, w

et a

nd d

ry s

cler

op

hyll

fore

sts

and

ra

info

rest

. Ess

enti

ally

a c

ave

bat

but

may

als

o r

oo

st in

ro

ad

culv

erts

, sto

rmw

ater

tun

nels

and

oth

er m

an-m

ade

stru

ctur

es.

Onl

y 4

kno

wn

mat

erni

ty c

aves

in N

SW, n

ear

Wee

Jas

per

, B

ung

oni

a, K

emp

sey

and

Tex

as. F

emal

es m

ay t

rave

l hun

dre

ds

of

kilo

met

res

to t

he n

eare

st m

ater

nal c

olo

ny (

Chu

rchi

ll 20

08)

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Myo

tis m

acro

pus

So

uthe

rn

Myo

tis

V

12 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a)

Mai

nly

coas

tal b

ut m

ay o

ccur

inla

nd a

long

larg

e ri

ver

syst

ems.

Usu

ally

ass

oci

ated

wit

h p

erm

anen

t w

ater

way

s at

lo

w e

leva

tio

ns in

flat

/und

ulat

ing

co

untr

y, u

sual

ly in

veg

etat

ed

area

s. F

ora

ges

ove

r st

ream

s an

d w

ater

cour

ses

feed

ing

on

fish

and

inse

cts

fro

m t

he w

ater

sur

face

. Ro

ost

s in

a v

arie

ty o

f ha

bit

ats

incl

udin

g c

aves

, min

e sh

afts

, ho

llow

-bea

ring

tre

es,

sto

rmw

ater

cha

nnel

s, b

uild

ing

s, u

nder

bri

dg

es a

nd in

den

se

folia

ge,

typ

ical

ly in

clo

se p

roxi

mit

y to

wat

er (

Cam

pb

ell 2

011

).

Bre

eds

Nov

emb

er o

r D

ecem

ber

(C

hurc

hill

200

8)

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Scot

eana

x ru

epp

ellii

Gre

ater

B

road

-no

sed

Bat

V

14 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a)

Occ

urs

on

the

east

co

ast

and

Gre

at D

ivid

ing

Ran

ge.

Inha

bit

s a

vari

ety

of

hab

itat

s fr

om

wo

od

land

to

wet

and

dry

scl

ero

phy

ll fo

rest

s an

d r

ainf

ore

st, a

lso

rem

nant

pad

do

ck t

rees

and

tim

ber

-lin

ed c

reek

s, t

ypic

ally

bel

ow 5

00

m a

sl. F

ora

ges

in r

elat

ivel

y un

clut

tere

d a

reas

, usi

ng n

atur

al o

r m

an-m

ade

op

enin

gs

in

den

ser

hab

itat

s. U

sual

ly r

oo

sts

in t

ree

hollo

ws

or

fissu

res

but

al

so u

nder

exf

olia

ting

bar

k o

r in

the

ro

ofs

of

old

bui

ldin

gs.

F

emal

es c

ong

reg

ate

in m

ater

nal r

oo

sts

in s

uita

ble

ho

llow

tre

es

(Hoy

e an

d R

icha

rds

200

8, C

hurc

hill

200

8).

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 106: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 97

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eR

epti

les

Hop

loce

pha

lus

bun

gar

oid

esB

road

-he

aded

S

nake

E1

V2

reco

rds

wit

hin

10 k

m (

OE

H,

2014

a); S

pec

ies

or

spec

ies

hab

itat

like

ly

to o

ccur

wit

hin

10 k

m (

Do

TE

, 20

14)

No

ctur

nal,

shel

teri

ng in

ro

ck c

revi

ces

and

und

er fl

at s

and

sto

ne

rock

s o

n ex

po

sed

cliff

ed

ges

dur

ing

aut

umn,

win

ter,

and

sp

ring

, mov

ing

to

she

lters

in h

ollo

ws

of

larg

e tr

ees

wit

hin

200

m o

f es

carp

men

ts in

sum

mer

. Fee

ds

mo

stly

on

gec

kos

and

sm

all s

kink

s, a

nd o

ccas

iona

lly o

n fr

og

s an

d s

mal

l m

amm

als.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Frog

s

Lito

ria a

urea

Gre

en a

nd

Go

lden

Bel

l F

rog

E1

VS

pec

ies

or

spec

ies

hab

itat

m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Fo

rmer

ly o

ccur

red

fro

m B

runs

wic

k H

ead

s to

Vic

tori

a, b

ut

>80

% p

op

ulat

ions

now

ext

inct

. Inh

abit

s m

arsh

es, n

atur

al a

nd

arti

ficia

l fre

shw

ater

to

bra

ckis

h w

etla

nds,

dam

s an

d in

str

eam

w

etla

nds.

Pre

fers

site

s co

ntai

ning

cum

bun

gi (

Typ

ha s

pp

.) o

r sp

ike

rush

es (

Ele

ocha

ris s

pp

.), w

hich

are

uns

had

ed a

nd h

ave

a g

rass

y ar

ea a

nd/o

r ru

bb

le a

s sh

elte

r/re

fug

e ha

bit

at n

earb

y.

Gam

bus

ia h

olb

rook

i is

a ke

y th

reat

as

they

feed

on

gre

en a

nd

Go

lden

Bel

l Fro

g e

gg

s an

d t

adp

ole

s.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Lito

ria li

ttle

john

iLi

ttle

john

’s

Tree

Fro

gV

VS

pec

ies

or

spec

ies

hab

itat

m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

on

pla

teau

s an

d e

aste

rn s

lop

es o

f th

e G

reat

Div

idin

g

Ran

ge

sout

h fr

om

Wat

agan

Sta

te F

ore

st. O

ccur

s al

ong

p

erm

anen

t ro

cky

stre

ams

wit

h th

ick

frin

gin

g v

eget

atio

n as

soci

ated

wit

h eu

caly

pt

wo

od

land

s an

d h

eath

s am

ong

sa

ndst

one

out

cro

ps,

hun

ting

eit

her

in s

hrub

s o

r o

n th

e g

roun

d.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Lito

ria r

anifo

rmis

So

uthe

rn

Bel

l Fro

gE

1V

Sp

ecie

s o

r sp

ecie

s ha

bit

at

may

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Cur

rent

ly, t

he s

pec

ies

is k

now

n to

exi

st o

nly

in is

ola

ted

p

op

ulat

ions

in t

he C

ole

amb

ally

Irri

gat

ion

Are

a, t

he L

owb

idg

ee

floo

dp

lain

and

aro

und

Lak

e V

icto

ria.

Usu

ally

foun

d in

or

aro

und

per

man

ent

or

ephe

mer

al B

lack

Box

/Lig

num

/Nit

re

Go

ose

foo

t sw

amp

s, L

ignu

m/T

ypha

sw

amp

s an

d R

iver

Red

G

um s

wam

ps

or

bill

abo

ngs

alo

ng fl

oo

dp

lain

s an

d r

iver

val

leys

. Th

ey a

re a

lso

foun

d in

irri

gat

ed r

ice

cro

ps,

par

ticu

larl

y w

here

th

ere

is n

o a

vaila

ble

nat

ural

hab

itat

(O

EH

20

13).

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 107: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 98

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eH

elei

opor

us

aust

ralia

cus

Gia

nt

Bur

row

ing

F

rog

VV

14 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at

likel

y to

occ

ur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

alon

g t

he c

oast

and

eas

tern

slo

pes

of t

he G

reat

D

ivid

ing

Ran

ge

sout

h fr

om W

olle

mi N

atio

nal P

ark.

Ap

pea

rs t

o

exis

t as

2 p

opul

atio

ns w

ith a

100

km g

ap in

rec

ord

s b

etw

een

Jerv

is B

ay a

nd E

den

. Nor

ther

n p

opul

atio

n oc

curs

on

sand

y so

ils s

upp

ortin

g h

eath

, woo

dla

nd o

r op

en fo

rest

. Bre

eds

in

ephe

mer

al t

o in

term

itten

t st

ream

s w

ith p

ersi

sten

t p

ools

. Onl

y in

freq

uent

ly m

oves

to

bre

edin

g s

ites,

mos

t co

mm

only

foun

d o

n rid

ges

aw

ay fr

om c

reek

s, s

ever

al h

und

red

met

res

from

wat

er.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Mix

ophy

es b

alb

usSt

utte

ring

F

rog

E1

VS

pec

ies

or

spec

ies

hab

itat

lik

ely

to o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

alon

g t

he e

ast

coas

t of

Aus

tral

ia. H

as u

nder

gon

e a

mas

sive

ran

ge

red

uctio

n p

artic

ular

ly in

the

sou

th o

f its

ra

nge:

with

in t

he S

ydne

y B

asin

, Whi

te (

200

8a)

loca

ted

onl

y 3

pop

ulat

ions

sou

th o

f Syd

ney

(Mac

qua

rie P

ass

and

Mt

Wer

ong

) an

d D

aly

et a

l. (2

00

2, in

Whi

te 2

00

8a)

foun

d o

nly

2 ex

tant

p

opul

atio

ns b

etw

een

Mac

qua

rie P

ass

and

Vic

toria

. Inh

abits

ra

info

rest

and

wet

, tal

l, op

en fo

rest

. She

lter

in d

eep

leaf

litt

er

and

thi

ck u

nder

stor

ey v

eget

atio

n on

the

fore

st fl

oor.

Feed

s on

in

sect

s an

d s

mal

ler

frog

s, b

reed

ing

in s

trea

ms

dur

ing

sum

mer

af

ter

heav

y ra

in. T

he s

pec

ies

doe

s no

t oc

cur

in a

reas

whe

re t

he

ripar

ian

veg

etat

ion

has

bee

n d

istu

rbed

or

whe

re t

here

hav

e b

een

sig

nific

ant

upst

ream

hum

an im

pac

ts (

Mah

ony

et a

l 199

7).

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Pse

udop

hryn

e au

stra

lisR

ed-

crow

ned

To

adle

t

V

16 r

eco

rds

wit

hin

10 k

m

(OE

H 2

014

)

Res

tric

ted

to

Syd

ney

Bas

in, f

rom

Now

ra t

o P

oko

lbin

and

w

est

to M

t V

icto

ria.

Inha

bit

s he

athl

and

and

op

en w

oo

dla

nd

on

Haw

kesb

ury

and

Nar

rab

een

San

dst

one

s, w

ithi

n 10

0m

of

rid

gel

ines

. Bre

eds

in e

phe

mer

al fe

eder

cre

eks

or

floo

ded

d

epre

ssio

ns, r

equi

ring

unp

ollu

ted

wat

er b

etw

een

5.5

and

6

.5 p

H. S

helte

rs u

nder

ro

cks,

am

ong

st m

asse

s o

f d

ense

ve

get

atio

n o

r le

af li

tter

. Po

pul

atio

ns r

estr

icte

d t

o im

med

iate

vi

cini

ty o

f b

reed

ing

are

as.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 108: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 99

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eFi

sh

Mac

qua

ria

aust

rala

sica

Mac

qua

rie

Per

chE

ES

pec

ies

or

spec

ies

hab

itat

m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

in t

he u

pp

er r

each

es o

f th

e La

chla

n, M

urru

mb

idg

ee

and

Mur

ray

Riv

ers,

and

in p

arts

of

the

Haw

kesb

ury

and

S

hoal

have

n ca

tchm

ent

area

s. In

hab

its

rive

r an

d la

ke h

abit

ats,

es

pec

ially

the

up

per

rea

ches

of

rive

rs a

nd t

heir

tri

but

arie

s.

Req

uire

s cl

ear

wat

er w

ith

dee

p, r

ock

y ho

les

and

ab

und

ant

cove

r (i

nclu

din

g a

qua

tic

veg

etat

ion,

wo

od

y d

ebri

s, la

rge

bo

uld

ers

and

ove

rhan

gin

g b

anks

). S

paw

ning

occ

urs

in s

pri

ng

and

sum

mer

in s

hallo

w u

pla

nd s

trea

ms

or

flow

ing

sec

tio

ns o

f ri

ver

syst

ems.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Pro

totr

octe

s m

arae

naA

ustr

alia

n G

rayl

ing

VS

pec

ies

or

spec

ies

hab

itat

m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

in c

oast

al r

iver

s an

d s

trea

ms

sout

h fr

om t

he S

hoal

have

n R

iver

. Inh

abits

est

uarin

e w

ater

s an

d c

oast

al s

eas

as la

rvae

/ju

veni

les,

and

fres

hwat

er r

iver

s an

d s

trea

ms

as a

dul

ts. M

ost

of

thei

r liv

es a

re s

pen

t in

fres

hwat

er r

iver

s an

d s

trea

ms

in c

ool,

clea

r w

ater

s w

ith a

gra

vel s

ubst

rate

and

alte

rnat

ing

poo

l and

riffl

e zo

nes,

how

ever

can

als

o oc

cur

in t

urb

id w

ater

. The

sp

ecie

s ca

n p

enet

rate

wel

l inl

and

, bei

ng r

ecor

ded

ove

r 10

0 k

m in

land

fr

om t

he s

ea. (

Bac

khou

se e

t al

20

08)

.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Bid

yanu

s b

idya

nus

Silv

er P

erch

VC

ES

pec

ies

or

spec

ies

hab

itat

m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E, 2

014

)

In N

SW n

ow a

bse

nt f

rom

muc

h o

f th

eir

form

er r

ang

e ac

ross

th

e M

urra

y-D

arlin

g. M

ost

ab

und

ant

rem

aini

ng n

atur

al

po

pul

atio

n o

ccur

s in

the

cen

tral

Mur

ray

Riv

er d

owns

trea

m

of

Yarr

awo

nga

Wei

r as

wel

l as

seve

ral o

f it

s an

abra

nche

s an

d t

rib

utar

ies

incl

udin

g t

he E

dw

ard

Riv

er -

an

anab

ranc

h o

f th

e M

urra

y R

iver

tha

t flo

ws

thro

ugh

Den

iliq

uin,

and

the

M

urru

mb

idg

ee R

iver

. Pre

fer

fast

-flow

ing

, op

en w

ater

s,

esp

ecia

lly w

here

the

re a

re r

apid

s an

d r

aces

, how

ever

the

y w

ill

also

inha

bit

war

m, s

lug

gis

h w

ater

wit

h co

ver

pro

vid

ed b

y la

rge

wo

od

y d

ebri

s an

d r

eed

s. In

form

atio

n o

n ha

bit

at p

refe

renc

es is

sc

arce

for

this

sp

ecie

s (N

SW D

PI 2

00

6a)

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 109: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 100

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

re

cord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in

the

sub

ject

sit

eIn

vert

ebra

tes

Mer

idol

um

corn

eovi

rens

Cum

ber

land

P

lain

Lan

d

Sna

il

E1

9

4 r

eco

rds

wit

hin

10 k

m

(OE

H, 2

014

a)

Occ

urs

wit

hin

a sm

all a

rea

of

the

Cum

ber

land

Pla

in, f

rom

R

ichm

ond

and

Win

dso

r to

Pic

ton.

Fo

und

pri

mar

ily u

nder

litt

er

of

bar

k, le

aves

and

log

s, o

r in

loo

se s

oil

aro

und

gra

ss c

lum

ps

wit

hin

Cum

ber

land

Pla

in W

oo

dla

nd. H

as a

lso

bee

n fo

und

un

der

rub

bis

h. F

eed

s o

n fu

ngus

. Dur

ing

per

iod

s o

f d

roug

ht

can

bur

row

into

the

so

il to

esc

ape

the

dry

co

ndit

ions

.

Unl

ikel

y. S

ite

sup

po

rts

a ve

ry

den

se u

nder

sto

rey

of

exo

tic

gra

sses

tha

t is

no

t su

itab

le h

abit

at

for

this

sp

ecie

s.

Page 110: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 101

Mig

rato

ry b

ird

s

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eH

alia

eetu

s le

ucog

aste

rW

hite

-bel

lied

S

ea-E

agle

C3

reco

rds

wit

hin

10 k

m (

OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Pri

mar

ily c

oas

tal b

ut m

ay e

xten

d in

land

ove

r m

ajo

r ri

ver

syst

ems.

Bre

eds

clo

se t

o w

ater

, mai

nly

in t

all o

pen

fore

st/

wo

od

land

but

als

o in

den

se fo

rest

, rai

nfo

rest

, clo

sed

scr

ub

or

rem

nant

tre

es. U

sual

ly fo

rag

es o

ver

larg

e ex

pan

ses

of

op

en w

ater

, but

als

o o

ver

op

en t

erre

stri

al h

abit

ats

(e.g

. g

rass

land

s).

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Ap

us p

acifi

cus

Fo

rk-t

aile

d

Swift

C,J

,KS

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

)

Rec

ord

ed in

all

reg

ions

of

NSW

. No

n- b

reed

ing

, and

al

mo

st e

xclu

sive

ly a

eria

l whi

le in

Aus

tral

ia. O

ccur

s ov

er

urb

an a

nd r

ural

are

as a

s w

ell a

s ar

eas

of

nati

ve v

eget

atio

n.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Hiru

ndap

us

caud

acut

usW

hite

-thr

oat

ed

Nee

dle

tail

C,J

,K2

reco

rds

wit

hin

10 k

m (

OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Rec

ord

ed a

long

NSW

co

ast

to t

he w

este

rn s

lop

es a

nd

occ

asio

nally

fro

m t

he in

land

pla

ins.

Bre

eds

in n

ort

hern

he

mis

phe

re. A

lmo

st e

xclu

sive

ly a

eria

l whi

le in

Aus

tral

ia.

Occ

ur a

bov

e m

ost

hab

itat

typ

es, b

ut a

re m

ore

fre

que

ntly

re

cord

ed a

bov

e m

ore

den

sely

veg

etat

ed h

abit

ats

(rai

nfo

rest

, op

en fo

rest

and

hea

thla

nd)

than

ove

r w

oo

dla

nd o

r tr

eele

ss a

reas

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Ard

ea ib

isC

attl

e E

gre

tC

,J 8

rec

ord

s w

ithi

n 10

 km

(O

EH

20

14);

S

pec

ies

or

spec

ies

hab

itat

like

ly t

o

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

)

Occ

urs

acro

ss N

SW. P

rinc

ipal

bre

edin

g s

ites

are

the

cent

ral e

ast

coas

t fr

om

New

cast

le t

o B

und

aber

g. A

lso

b

reed

s in

maj

or

inla

nd w

etla

nds

in n

ort

h N

SW (

nota

bly

th

e M

acq

uari

e M

arsh

es).

Occ

urs

in t

rop

ical

and

tem

per

ate

gra

ssla

nds,

wo

od

ed la

nds

and

ter

rest

rial

wet

land

s. U

ses

pre

do

min

atel

y sh

allo

w, o

pen

and

fre

sh w

etla

nds

wit

h lo

w e

mer

gen

t ve

get

atio

n an

d a

bun

dan

t aq

uati

c flo

ra.

So

met

imes

ob

serv

ed in

sw

amp

s w

ith

tall

emer

gen

t ve

get

atio

n an

d c

om

mo

nly

use

area

s o

f ta

ll p

astu

re in

m

ois

t, lo

w-l

ying

are

as.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Page 111: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 102

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eA

rdea

m

odes

taE

aste

rn G

reat

E

gre

tM

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Occ

urs

acro

ss N

SW. W

ithi

n N

SW t

here

are

bre

edin

g

colo

nies

wit

hin

the

Dar

ling

Riv

erin

e P

lain

s an

d R

iver

ina

reg

ions

and

min

or

colo

nies

acr

oss

its

rang

e in

clud

ing

the

no

rth

and

no

rth-

east

of

the

stat

e. R

epo

rted

fro

m a

wid

e ra

nge

of

wet

land

hab

itat

s (f

or

exam

ple

inla

nd a

nd c

oas

tal,

fres

hwat

er a

nd s

alin

e, p

erm

anen

t an

d e

phe

mer

al, o

pen

an

d v

eget

ated

, lar

ge

and

sm

all,

natu

ral a

nd a

rtifi

cial

).

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Ant

hoch

aera

p

hryg

iaR

egen

t H

one

yeat

erE

4A

E, M

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

In N

SW c

onfi

ned

to

tw

o k

now

n b

reed

ing

are

as: t

he

Cap

erte

e V

alle

y an

d B

und

arra

-Bar

rab

a re

gio

n. N

on-

bre

edin

g fl

ock

s o

ccas

iona

lly s

een

in c

oas

tal a

reas

fo

rag

ing

in fl

ower

ing

Sp

ott

ed G

um a

nd S

wam

p M

aho

gan

y fo

rest

s, p

resu

mab

ly in

res

po

nse

to d

roug

ht. I

nhab

its

dry

o

pen

fore

st a

nd w

oo

dla

nds,

par

ticu

larl

y B

ox-I

ronb

ark

wo

od

land

and

rip

aria

n fo

rest

s o

f R

iver

She

oak

, wit

h an

ab

und

ance

of

mat

ure

tree

s, h

igh

cano

py

cove

r an

d

abun

dan

ce o

f m

istl

eto

es.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 112: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 103

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eM

erop

s or

natu

sR

ainb

ow B

ee-

eate

rJ

1 rec

ord

wit

hin

10 k

m (

OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E,

2014

)

Dis

trib

uted

acr

oss

muc

h o

f m

ainl

and

Aus

tral

ia, a

nd

seve

ral n

ear-

sho

re is

land

s. O

ccur

s m

ainl

y in

op

en fo

rest

s an

d w

oo

dla

nds,

shr

ubla

nds,

and

in v

ario

us c

lear

ed o

r se

mi-

clea

red

hab

itat

s, in

clud

ing

farm

land

and

are

as o

f hu

man

hab

itat

ion.

It u

sual

ly o

ccur

s in

op

en, c

lear

ed o

r lig

htly

-tim

ber

ed a

reas

tha

t ar

e o

ften

, but

no

t al

way

s,

loca

ted

in c

lose

pro

xim

ity

to p

erm

anen

t w

ater

. It

also

o

ccur

s in

inla

nd a

nd c

oas

tal s

and

dun

e sy

stem

s, a

nd in

m

ang

rove

s in

no

rthe

rn A

ustr

alia

, and

has

bee

n re

cord

ed

in v

ario

us o

ther

hab

itat

typ

es in

clud

ing

hea

thla

nd,

sed

gel

and

, vin

e fo

rest

and

vin

e th

icke

t, an

d o

n b

each

es.

Occ

urs

in o

pen

wo

od

land

s an

d s

hrub

land

s, in

clud

ing

m

alle

e, a

nd in

op

en fo

rest

s th

at a

re u

sual

ly d

om

inat

ed b

y eu

caly

pts

. It

also

occ

urs

in g

rass

land

s an

d, e

spec

ially

in

arid

or

sem

i-ar

id a

reas

, in

rip

aria

n, fl

oo

dp

lain

or

wet

land

ve

get

atio

n as

sem

bla

ges

. Co

mm

on

in c

lear

ed a

nd s

emi-

clea

red

hab

itat

s an

d is

reg

ular

ly r

eco

rded

in o

ther

d

istu

rbed

hab

itat

s in

clud

ing

ro

adsi

de

veg

etat

ion.

It h

as

also

bee

n re

cord

ed in

tow

ns a

nd s

ubur

bs.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

Mon

arch

a m

elan

opsi

sB

lack

-fac

ed

Mo

narc

hM

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

Fo

und

alo

ng t

he c

oas

t o

f ea

ster

n A

ustr

alia

, bec

om

ing

le

ss c

om

mo

n fu

rthe

r so

uth.

Fo

und

in r

ainf

ore

sts,

euc

alyp

t w

oo

dla

nds,

co

asta

l scr

ub a

nd d

amp

gul

lies.

It m

ay b

e fo

und

in m

ore

op

en w

oo

dla

nd w

hen

mig

rati

ng. R

esid

ent

in t

he n

ort

h o

f it

s ra

nge,

but

is a

sum

mer

bre

edin

g

mig

rant

to

co

asta

l so

uth-

east

ern

Aus

tral

ia, a

rriv

ing

in

Sep

tem

ber

and

ret

urni

ng n

ort

hwar

ds

in M

arch

. It

may

als

o

mig

rate

to

Pap

ua N

ew G

uine

a in

aut

umn

and

win

ter.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Page 113: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 104

Scie

ntifi

c na

me

Com

mon

na

me

TSC

A

ct

stat

us

EP

BC

A

ct

stat

us

Typ

e of

rec

ord

Des

crip

tion

Like

lihoo

d o

f oc

curr

ence

in t

he

sub

ject

sit

eM

yiag

ra

cyan

oleu

caS

atin

F

lyca

tche

rM

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

In N

SW w

ides

pre

ad o

n an

d e

ast

of t

he G

reat

Div

ide,

sp

arse

ly s

catt

ered

on

the

wes

tern

slo

pes

, ver

y oc

casi

onal

re

cord

s on

the

wes

tern

pla

ins.

Inha

bit

heav

ily v

eget

ated

g

ullie

s in

euc

alyp

t-d

omin

ated

fore

sts

and

tal

ler

woo

dla

nds,

of

ten

near

wet

land

s an

d w

ater

cour

ses.

On

mig

ratio

n,

occu

r in

coa

stal

fore

sts,

woo

dla

nds,

man

gro

ves

and

drie

r w

ood

land

s an

d o

pen

fore

sts.

Gen

eral

ly n

ot in

rai

nfor

ests

.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Sym

pos

iach

rus

triv

irgat

usS

pec

tacl

ed

Mo

narc

hM

Sp

ecie

s o

r sp

ecie

s ha

bit

at k

now

n to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

The

Sp

ecta

cled

Mo

narc

h is

foun

d in

co

asta

l no

rth-

east

ern

and

eas

tern

Aus

tral

ia, i

nclu

din

g c

oas

tal i

slan

ds,

fro

m C

ape

York

, Que

ensl

and

to

Po

rt S

tep

hens

, New

So

uth

Wal

es. I

t is

m

uch

less

co

mm

on

in t

he s

out

h. P

refe

rs t

hick

und

erst

ore

y in

rai

nfp

rest

, wet

gul

lies

and

wat

ersi

de

veg

etat

ion

as w

ell

as m

ang

rove

s.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Rhi

pid

ura

rufif

rons

Ruf

ous

Fan

tail

MS

pec

ies

or

spec

ies

hab

itat

kno

wn

to

occ

ur w

ithi

n 10

 km

(D

oT

E, 2

014

)

Fo

und

alo

ng N

SW c

oas

t an

d r

ang

es. I

nhab

its

rain

fore

st,

den

se w

et fo

rest

s, s

wam

p w

oo

dla

nds

and

man

gro

ves.

D

urin

g m

igra

tio

n, it

may

be

foun

d in

mo

re o

pen

hab

itat

s o

r ur

ban

are

as (

Bird

s A

ustr

alia

20

08)

.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Ros

trat

ula

aust

ralis

Aus

tral

ian

Pai

nted

Sni

pe

E1

E1

E, M

Sp

ecie

s o

r sp

ecie

s ha

bit

at li

kely

to

o

ccur

wit

hin

10 k

m

(Do

TE

, 20

14)

No

rmal

ly fo

und

in p

erm

anen

t o

r ep

hem

eral

sha

llow

in

land

wet

land

s, e

ithe

r fr

eshw

ater

or

bra

ckis

h. N

ests

on

the

gro

und

am

ong

st t

all r

eed

-lik

e ve

get

atio

n ne

ar w

ater

. F

eed

s o

n m

udfla

ts a

nd t

he w

ater

’s e

dg

e ta

king

inse

cts,

w

orm

and

see

ds.

Pre

fers

fri

nges

of

swam

ps,

dam

s an

d

near

by m

arsh

y ar

eas

wit

h co

ver

of

gra

sses

, lig

num

, low

sc

rub

or

op

en t

imb

er.

Nil.

No

sui

tab

le

hab

itat

pre

sent

in t

he

sub

ject

site

.

Gal

linag

o

hard

wic

kii

Lath

am’s

Sni

pe

C,J

,K7

reco

rds

wit

hin

10 k

m (

OE

H, 2

014

a);

Sp

ecie

s o

r sp

ecie

s ha

bit

at m

ay o

ccur

w

ithi

n 10

 km

(D

oT

E,

2014

)

Occ

urs

alon

g t

he c

oast

and

wes

t of

the

gre

at d

ivid

ing

ra

nge.

Non

bre

edin

g v

isito

r to

Aus

tral

ia. I

nhab

it p

erm

anen

t an

d e

phe

mer

al w

etla

nds

up t

o 20

00

m a

sl. T

ypic

ally

in

open

, fre

shw

ater

wet

land

s w

ith lo

w, d

ense

veg

etat

ion

(inc

l. sw

amp

s, fl

ood

ed g

rass

land

s an

d h

eath

land

s). C

an

also

occ

ur in

sal

ine/

bra

ckis

h ha

bita

ts a

nd in

mod

ified

or

artifi

cial

hab

itats

clo

se t

o hu

man

act

ivity

.

Unl

ikel

y. N

o s

uita

ble

ha

bit

at p

rese

nt in

the

su

bje

ct s

ite.

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 105

Assessment of significance – River-flat Eucalypt Forest Endangered Ecological Community

River-flat Eucalypt Forest (RFEF) is listed as an endangered ecological community under the TSC Act.

This community is found on the river flats of coastal floodplains. It has a tall open tree layer of eucalypts, which may exceed 40 m in height, but can be considerably shorter in regrowth stands or under conditions of lower site quality. While the composition of the tree stratum varies considerably, the most widespread and abundant dominant trees include Eucalyptus tereticornis (Forest Red Gum), E. amplifolia (cabbage gum), Angophora floribunda (rough-barked apple) and A. subvelutina (broad-leaved apple) (OEH, 2013a).

The community is associated with silts, clay-loams and sandy loams, on periodically inundated alluvial flats, drainage lines and river terraces associated with coastal floodplains. RFEF generally occurs below 50 m elevation, but may occur on localised river flats up to 250 m above sea level. The structure of the community may vary from tall open forests to woodlands, although partial clearing may have reduced the canopy to scattered trees (OEH, 2013a).

RFEF occurs within the subject site and study area as highly modified form of the community adjacent to McBarron Creek. The vegetation is in low condition and there is evidence of historical soil disturbance associated with the construction of the railway line, vegetation clearing, rubbish and soil dumping and noxious weed infestations. The vegetation represents the southern tip of a more extensive stand of native vegetation that extends to the north of the study area within Pembroke Park.

Assessment of significance River-flat Eucalypt Forest on Coastal Floodplainsa) in the case of a threatened species, whether the action proposed is likely to have an adverse effect

on the life cycle of the species such that a viable local population of the species is likely to be placed at risk of extinction

Not applicable to this threatened ecological community.

b) in the case of an endangered population, whether the action proposed is likely to have an adverse effect on the life cycle of the species that constitutes the endangered population such that a viable local population of the species is likely to be placed at risk of extinction

Not applicable to this threatened ecological community.

c) in the case of an endangered ecological community or critically endangered ecological community, whether the action proposed:

(i) is likely to have an adverse effect on the extent of the ecological community such that its local occurrence is likely to be placed at risk of extinction

The proposal would result in the permanent removal of 0.09 hectares of RFEF from within the subject site. The vegetation to be cleared is in low condition and has been heavily modified and forms the southern disturbed edge of a larger stand of vegetation that extends to the north within Pembroke Park. The small area of vegetation to be removed does not support habitat for threatened flora and fauna species given its low condition and landscape context. The removal of this small area of highly modified vegetation is unlikely to place the local occurrence of the community at risk of extinction.

(ii) is likely to substantially and adversely modify the composition of the ecological community such that its local occurrence is likely to be placed at risk of extinction

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 106

Assessment of significance River-flat Eucalypt Forest on Coastal FloodplainsThe RFEF vegetation to be removed is highly modified regrowth with limited floristic and structural diversity. It is heavily infested with weeds, with an understorey dominated by exotic grass and herb species.

There will be no direct impacts on areas of higher quality RFEF vegetation to the north of the study area. Indirect impacts on retained vegetation in the locality are highly unlikely given the small scale of the proposal, its location within a highly disturbed area and the implementation of measure to minimise the potential for erosion and sedimentation and the spread of weeds. The removal of a small area of this community from an already degraded and fragmented riparian corridor would be unlikely to alter the composition of adjoining retained vegetation such that the local occurrence of this community would be placed at risk of extinction.

d) in relation to the habitat of a threatened species, population or ecological community:

(i) the extent to which habitat is likely to be removed or modified as a result of the action proposed

The proposal would remove about 0.09 ha of highly modified RFEF from within the subject site. Vegetation to be removed is in low condition and supports extensive infestations of exotic species.

(ii) whether an area of habitat is likely to become fragmented or isolated from other areas of habitat as a result of the proposed action

Vegetation within the locality of the proposal is already highly fragmented by roads, residential and industrial developments. The proposal will remove 0.09 hectares of low condition highly modified RFEF from the terminal edge of a patch of vegetation adjacent to the existing rail corridor (refer Figure 1). Removal of this vegetation as a result of the proposal will not result in any barriers to fauna movement, pollination, seed dispersal or other ecological processes or an area of habitat becoming fragmented or isolated from other areas of habitat.

(iii) the importance of the habitat to be removed, modified, fragmented or isolated to the long-term survival of the species, population or ecological community in the locality

As previously discussed, the small area of vegetation to be removed is consistent with a low condition form of this community and comprises the highly disturbed, edge of a larger patch of vegetation that extends to the north. The vegetation to be removed is heavily infested with weeds and does not form an important part of a vegetation link or habitat corridor. The vegetation provides marginal habitat for a small number of common and widespread species typical of disturbed urban environments and does not contain habitat of relevance for threatened flora and fauna. Given these considerations, the habitat to be removed is not likely to be important for the long-term survival of this ecological community in the locality.

e) whether the action proposed is likely to have an adverse effect on critical habitat (either directly or indirectly)

There is no critical habitat listed for this threatened ecological community.

f) whether the action proposed is consistent with the objectives or actions of a recovery plan or threat abatement plan

The OEH has identified 26 priority actions to help recover RFEF community in NSW (OEH, 2014a). The proposal involves clearing of RFEF and is consequently inconsistent with the objectives of the identified recovery strategies. However, as discussed under criteria c and d, the proposal will have negligible impacts on the local occurrence of the community and would not seriously affect the recovery of this threatened ecological community.

g) whether the action proposed constitutes or is part of a key threatening process or is likely to result in the operation of, or increase the impact of, a key threatening process (KTP)

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GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 107

Assessment of significance River-flat Eucalypt Forest on Coastal FloodplainsClearing of native vegetation is listed as a key threatening process under the TSC Act. The proposal will involve clearing a very small area of highly modified and degraded RFEF and would only make a very minor contribution to the operation of this KTP with respect to RFEF in the locality.

The proposal is highly unlikely to result in the operation of, or increase the impact of any other KTPs of relevance to RFEF in the locality.

Conclusion of Assessment of Significance for River-flat Eucalypt Forest

The proposal is highly unlikely to result in a significant effect on RFEF, pursuant to s.5A of the EP&A Act, given:

The proposal will remove only 0.09 hectares of highly disturbed and modified regrowth vegetation and will therefore not result in a significant reduction in the extent or occurrence of the community within the locality.

The proposal will not result in the direct disturbance or modification of, or an increase in fragmentation or isolation of any retained areas of vegetation or habitat.

The highly modified and degraded vegetation to be impacted is unlikely to be important to the long-term survival of the community in the locality.

Page 117: Power Supply Upgrade Program – Minto Substation Review of ......Program – Minto Substation Review of Environmental Factors July 2014. GHD Transport for NSW – Power Supply Upgrade

GHD | Transport for NSW – Power Supply Upgrade Program – Minto Substation REF | July 2014 108

Appendix D – Electromagnetic energy assessment

EMC Services Pty Ltd ABN 42 072 235 306

12/8 Tilley Lane Frenchs Forest NSW 2086 AUSTRALIA Tel +61 2 9975 4555 Fax +61 2 9876 2796

Report No. 140216DRAFT

Prediction and Assessment of Electromagnetic Fields for the Proposed

Railway Electrical Substation at Minto for GHD

byYu Ji

PhD MSc (Elect) SMIEEE

Signed: 11 March 2014

Geoffrey Garrett BE (Elect) Hons.This report may not be reproduced whole or in part without the permission of EMC Services Pty Ltd.

π EMC Services - Consulting engineers in EMC, EMR, RF hazards and site surveysInternational - Tel 61-2-9975 4555, Fax 61-2-9876 2796, E-Mail [email protected]

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Table of Contents

1 Introduction 110

2 Objective 110

3 Applicable Standards 111

4 Analysis 112

4.1 Main Equipment in the Proposed Minto Substation 112

4.2 Sources of EMF 112

4.3 Electromagnetic Field Behaviour 112

4.4 Predicted EMF Field Strengths 113

4.4.1 Assumptions 113

4.4.2 Power Frequency Electromagnetic Fields 114

4.4.3 Radio Frequency EMF Strengths 114

4.5 Analysis of EMF Predictions 115

4.5.1 Impact on health 115

4.5.2 Impact on Radiocommunications and Broadcasting 115

5 Conclusions & Recommendations 116

5.1 Health & Safety 116

5.2 Interference 116

5.3 Survey 116

6 Appendix 117

Figure 1 . Location of the Proposed Minto Substation - Aerial View 119

Figure 2 . Locations for EMF Predictions Inside of the Proposed Minto Substation – Plan View 120

Figure 3 . Locations for EMF Predictions Outside of the Proposed Minto Substation 121

Applicable Documents

[1] AS/NZS 2344:2007 Limits of electromagnetic interference from overhead a.c. powerlines and high voltage equipment installations in the frequency range 0.15 to 1000 MHz, published by Standards Australia

[2] ARPANSA Radiation Health Series (RHS) No. 30, Interim Guidelines on Limits of Exposure to 50/60 Hz Electric and magnetic Fields (1989).

[3] RPS3 (Radiation Protection Standard 3), Maximum Exposure Levels to Radio-Frequency Fields – 3kHz to 300GHz (2002), National Health and Medical Research Council.

[4] Guidelines for the Management of 50 Hz Magnetic Fields in Office Buildings Owned and Managed by the Queensland Department of Public Works.

[5] AS/NZS CISPR 11: Industrial scientific and medical (ISM) radio-frequency equipment – Electromagnetic disturbance characteristics – Limits and methods of measurement.

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1 INTRODUCTION

Transport for NSW has proposed a location at Minto for constructing a 33 kVAC to 1500 VDC substation. Minto Substation will be a new 2 x 5 MW substation replacing the existing Leumeah Substation, to provide additional capacity and improved reliability for the operation of trains on the Main Southern line. The new site for Minto Substation will be adjacent to the existing Leumeah Substation, with direct access to the rail corridor.

A single storey building with a dimension of 54390 mm (L) x 5800 mm (W) would be constructed to house the substation equipment. The location of the proposed Minto substation is shown in the aerial photograph of Figure 1. There will be a 33 kV cable route to either side of each substation. The cable route will be approximately 50m long, installed underground 1 m below the surface level, and connect to the closest existing 33 kV power pole. There will be one 1500 VDC Positive route between the substation and the closest overhead wiring structure, which forms the feeding point for the 1500 VDC supply to the catenary. There will be one 1500 VDC Negative route between the substation and a point just adjacent to each overhead wiring structure (say 5m clearance). There will be a trackside busbar which the 1500 VDC cables connect to on both the near side and the far side of the tracks.

Power to the substation would be supplied via 33kV underground cabling to the two transformer/rectifier sets (a main and an auxiliary supply) terminating at each end of the substation. Each set is comprised of a 5.35MVA rectifier transformer (33 kV and 162 A at input) which produces a low voltage (3 phase star/delta supply of 600 VAC per phase at 5148 Amperes) fed to separate six phase rectifiers. The rectifier cabinet, which contains two three-phase bridge circuits with 1 diode in each bridge arm, then produces a DC output of 1500 Volts. A common reactor (a 0.5 mH inductor), smoothes the 1500V DC rectifier output, which is to be connected to the railway catenary and track via underground cabling. The 1500V DC feeder cables are

reticulated from underneath the 5MW rectifier (an enclosed metal cabinet) via the cable basement and 1500V DC circuit breaker and link switches, and connected to the relevant OHWS (overhead wiring structure). Figure 2 contains the substation floor plan showing the detail of the Administration Room, Switch Rooms, bunded yards, transformers and rectifiers.

The electromagnetic fields that would be produced by the substation are considered in this report. Both power frequency and radio frequency EMF can pose potential risk to human health, and interference risk to the operation of electrical equipment and appliances, if not appropriately managed. Unintentional transmission (or emission) of radio frequency fields can potentially interfere with radio and TV broadcast reception and radio communications equipment, resulting in a degradation of reception quality.

2 OBJECTIVE

This report predicts the electromagnetic fields expected to be generated by the substation, and identifies any potential constraints the electromagnetic fields may pose on the design of the substation, or impact these fields may have on the nearby residents or the wider community. This report assesses the health risks to human occupants within the vicinity of the substation due to electromagnetic exposure and any effects on radio and TV broadcast reception and radio communications equipment that may be used in the area.

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3 APPLICABLE STANDARDS

The following Australian standards are applicable:

• RHS 30 (Radiation Health Series 30), Interim Guidelines on Limits of Exposure to 50/60Hz Electric & Magnetic Fields (1989), National Health and Medical Research Council

• RPS 3 (Radiation Protection Series No.3), Maximum Exposure Levels to Radiofrequency Fields – 3 kHz to 300 GHz (2002), ARPANSA

• AS/NZS 2344: 1997 and Amdt 1: 2006 Limits of electromagnetic interference from overhead a.c. powerlines and high voltage equipment installations in the frequency range 0.15 to 1000 MHz

Tables 1a & 1b below, list the standards and limits for low frequency (50Hz) magnetic fields and radio frequency fields applicable to both human exposure and radiocommunications including broadcast radio and TV.

Table 1a Human Exposure Limits – 50/60Hz Magnetic Fields and RF fields

Exposure Type Applicable Standard Magnetic Field Electric FieldOccupational 50 Hz exposure (whole working day)

RHS 30 500 μT 10 kV/m

General Public 50 Hz exposure (up to 24hrs per day)

RHS 30 100 μT 5,000 V/m

Occupational RF exposure at 1 MHz (whole working day)

RPS 3 1.63 A/m 614 V/m

General Public RF exposure at 1 MHz (up to 24hrs per day)

RPS 3 0.729 A/m 86.8 V/m

Other than these standards, in Queensland Government owned or managed buildings, the managed limit of human exposure in “occupied areas” (4 hours or more per day on average) is 5 μT (refer [4]).

Table 1b Interference Limits – Radiocommunications

Interference Type Applicable Standard Magnetic Field Electric FieldRadiocommunications (overhead power lines)

AS/NZS 2344 0.84 μA/m (1,2) 0.316 mV/m (1,2)

Notes: 1. Limit in the frequency range of 0.15 MHz to 1.7 MHz 2. Limit for urban areas.

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4 ANALYSIS

4.1 Main Equipment in the Proposed Minto Substation

The main design elements for the proposed substation at Minto, are listed below:

1. 1500V DC Switchgear

2. 33 KV AC Switchgear

3. Two 5MW 1500V DC Rectifiers

4. Two 5.3MVA 33kV/600V Rectifier Transformers

5. Smoothing Reactor

6. 10-off 33kV AC circuit breakers

7. 1500V DC circuit breakers

8. HV/LV Cables

9. Future 6.25MVA 33kV/11kV power transformer

10. Future 11kV AC Harmonic Filter

11. Future 11kV neutral earth resistor

12. Future 11kV AC circuit breakers

4.2 Sources of EMF

The main sources of EMF considered within the substation include:

• High Voltage (HV) power cabling

• Low Voltage (LV) power cabling

• HV to LV power transformers

• Rectifiers

• Reactors

• Low voltage boards

• Electrical switchboards

• AC busbars and cabling

• DC busbars and cabling

4.3 Electromagnetic Field Behaviour

The power-frequency electromagnetic fields (EMF) produced by the substation predominantly comprise of magnetic fields at a frequency of 50Hz. Electric fields are also present but their influence is far less and can be negligible.

At distances close to the EMF source, such as High Voltage (HV) and Low Voltage (LV) cabling, the magnetic field generally decreases proportionally to the inverse square of the distance away from the source, that is:

B α I × d / r² where: B = magnetic field (Tesla) I = load current (Amperes) d = separation distance between cable conductors (metres) r = separation distance from the EMF source to the observer (metres)

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At distances that are large compared to the source, the magnetic field reduces proportionality to the inverse cube of the distance.

With radio frequencies (frequencies above the audible range) the radiated fields comprise both electric and magnetic field components. At the higher frequencies the electric component can be considered representative of both the electric and magnetic fields. The electric field generally decreases proportionally to the inverse of the distance away from the source:

E α I × A × f / r where: E = electric field (Volts/metre) I = excitation current (Amps) A = area of radiator (m2) f = frequency (Hz)

The source of these fields is the switching or commutation of the rectifiers, which convert the alternating current supply to pulsating Direct Current (DC).

The rectifier is a six phase unit with the following harmonic frequencies:

Fn = 6 × 50 × n = 300 n where: Fn is the harmonic frequency (Hz)

n is the harmonic number

The amplitude of these harmonics decreases rapidly with increasing frequency and may be approximated as follows:

E α ((Sin x) / x)2 where: x is the angular frequency of the impulse π/td (radians) td is the impulse width

4.4 Predicted EMF Field Strengths

4.4.1 Assumptions

The electromagnetic fields produced, varies depending on the amount of power that is being consumed by the substation. In determining this power consumption, the following has been assumed:

• A maximum of one transformer and rectifier is operating at any time as the second transformer and rectifier set is a backup (reserve) should one of the two fail.

• The maximum LV power supplied to the rectifiers is the rated output power of one of the transformers (5148 amps at 600 volts ac).

• The maximum output of the rectifiers is their rated DC output (3393 amps at 1500 volts)

• All the above equipment is operating at their rated (maximum) output

• All installed equipment in the substation complies with CISPR11 [5] or equivalent.

Note - The substation would normally operate at levels much lower than the rated output. Typically, the highest power would be delivered when multiple trains are in this section.

Having considered the scenarios of maximum power consumption, the predicted (calculated) electromagnetic field values are actually the maximum values expected under normal load conditions (that is the maximum achievable loading, disregarding all fault conditions).

The dominant magnetic (H) field is vertical, produced by the interconnecting cables due to high amount of current consumption from the transformer to the rectifiers.

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4.4.2 Power Frequency Electromagnetic Fields

The power-frequency magnetic fields from the substation are predominantly emitted from the 600 V cabling between the transformer and the rectifier. There are 8-off cables per phase per winding and in total 48 AC low voltage cables from the rectifier transformer to the rectifier. These cables are about 4.4 m long and about 2.5 m above the floor. The current in these cable conductors and the distance separating them influences the magnitude of the magnetic field produced. The maximum and average separation distances between adjacent cables are estimated as 315mm at the rectifier side and 200mm, respectively. The maximum magnetic field strength, for when the substation is under maximum loading, has been calculated at six different locations inside of the proposed substation as shown in Figure 2, and eight different locations outside of the proposed substation as shown in Figure 3. The predicted fields are listed in Tables 2 to 5.

Inside the substation building, within a 1m distance from the 600V cabling between the transformer and the rectifier, the predicted power frequency magnetic field exceeds the ARPANSA RHS 30 limit of 100 microtesla, applicable to the General Public.

If a smaller separation distance between the 600V cables, of say 30 mm could have been arranged by bundling cables together, the magnetic field could have been reduced by 90% from the maximum separation of 315 mm. This reduction is possible because of the relationship that, the closer the cables are kept together, the greater the field cancellation. However, since it may be impractical to reduce the separation distance, due to a number of reasons such as stress on palm terminals, and alterations to penetrations in the blast-resistant wall between the rectifier and transformer units, there are other possible measures that can be applied for ensuring safety. Such measures could include cautioning or preventing access in close proximity to the 600V cabling, and/or reduction of the magnetic fields by installation of shielding.

Outside the rectifier transformer bunded yard, in the southern and northern Switch Rooms (locations b and d) within the substation, the strongest field strengths are estimated to be 4.04 μT and 3.10 μT respectively. At the substation Administration Office (location a in Figure 2), a distance of approximately 10 metres from the main source within the substation, the field strength is estimated to be 1.01 μT. Outside of the proposed substation, at the substation fence which is 3 m away from the substation eastern wall, next to the southern and northern bunded yards, the predicted power frequency magnetic field is 5.9 μT. This is the strongest field outside of the substation boundary.

The calculations in the above paragraph and in Table 2, are maximum field values based on the substation being loaded at maximum rated capacity. However, in practice the fields will normally be significantly lower, as during normal and peak operating hours the substation would more likely be loaded closer to approximately 30% and 60% of rated capacity respectively.

The 33kV incoming underground cabling will also be a source of power frequency magnetic fields, but due to its lower maximum current of 162 amps to the substation, the associated magnetic field is expected to be negligible comparing with the 600V cabling between rectifier transformers and rectifiers. As the location of the cabling is yet to be determined, the location of the field emitted by the cabling is unknown.

4.4.3 Radio Frequency EMF Strengths

The switching transients of the rectifiers dominate the radio frequency field radiated from the substation, and a larger transient occurs when each diode is turned ‘off’, the maximum rate of decay, di/dt of the forward current in each diode of the rectifier, is 50 A/mS or for two diodes in parallel 100 A/mS (two diodes are paralleled for each phase of the six phase rectifier).

The energy contained in the transient (pulse) is low and not of sufficient magnitude to constitute a hazard even directly alongside the rectifiers however the radiated radio frequency

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(RF) field could potentially interfere with radiocommunications. For the purposes of this report, the interference to medium frequency broadcast is evaluated as the emissions of the transient at these frequencies, is much greater than for short wave radio and TV. Harmonics are produced at the repetition frequency (300 Hz) at an amplitude proportional to 1/n where n is the harmonic number.

The predicted electric field levels at different distances from the 600V cabling in the substation ranging from 5.8m to 100m are listed in Table 6. Preliminary calculations suggested that the field strength from 500 kHz to 1.7 MHz (3,333rd harmonic at 999.9 kHz) would be 0.322 mV/m at 60m distance, 36m distance (locations 5 and 8 in Figure 3) and 18m distance (locations 4, 6 and 7 in Figure 3), when the substation is fully loaded, 60% loaded and 30% loaded (which is more representative during normal hours), respectively, and this level exceeds the AS/NZS 2344 limit of 0.316 mV/m as shown in Table 1b.

If we consider a reduction for equipment or building shielding, the actual electric field level would be significantly lower than the values in Table 6.

As all 33kV switchboards are metal clad, RF emissions from busbars and bushings during a switching event, will be limited and of little concern

4.5 Analysis of EMF Predictions

4.5.1 Impact on health

The strongest magnetic field in a public area is predicted to be outside the substation fence next to the two bunded yards with the rectifier transformers; however these strengths do not exceed the permissible exposure limit of 100 microtesla for the General Public and 500 microtesla for Occupational Personnel, as set down in RHS 30 by the National Health and Medical Research Council (see Table 1a). The magnetic field drops off rapidly as the separation distance is increased and is no more than 5.9 μT at the boundary of the substation. The electric fields within the substation are also well within the applicable limit.

However, as magnetic fields within Substations, Switch Rooms and the bunded yards, can be very high, access should be restricted, along with precautions and procedures to prevent health risks, and warning wearers of life supporting medical devices (eg. pacemakers, Implantable Cardioverter Defibrillators, etc…), of the interference risks. The Substations, Switch Rooms and bunded yards should only be accessed by appropriately qualified electrical maintenance and service personnel deemed to be classified Occupational Persons as defined by RHS30. It is predicted that, inside the substation building, within 1m and 0.45m of the 600V cabling between the transformer and the rectifier, that the predicted power frequency magnetic field will exceed 100 microtesla for the General Public and 500 microtesla for Occupational Personnel, respectively.

The RF fields predicted are well below the human exposure requirements being much less than 2 V/m at more than 10m away from the substation even when considered as a broadband signal.

4.5.2 Impact on Radiocommunications and Broadcasting

Without accounting for shielding inherent within the substation, when the substation is fully loaded, the RF electric fields beyond 60m away from the substation, would not exceed the applicable limit for urban broadcast reception of 0.316 mV/m applicable from 0.15 MHz to 1.7 MHz. Within 60m from the substation, radio receptions will be impacted, especially for AM reception and HF frequency bands, though the later would generally be less of a concern, as is typically used by amateur radio operators.

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5 CONCLUSIONS & RECOMMENDATIONS

5.1 Health & Safety

1. Outside the substation building, there should be no concern of risk to the health and safety of the general public or the on-site staff, due to the power-frequency or RF electromagnetic field emissions from the substation, as the predicted fields are well below the exposure limits set down by the ARPANSA RHS 30 and RPS3 guidelines.

2. Within the substation building, as the power frequency magnetic field level nearby the 600V AC cabling is expected to exceed the ARPANSA RHS 30 limit of 100μT, it is recommended that safety measures be implemented, as described in point 3 below.

3. It is recommended that all twelve 4.4 m long 600V AC cables, connecting between the transformer and rectifier, be bundled as close as possible together in trefoil formation, so as to reduce both the power frequency and RF electromagnetic field levels. However, since it may be impractical to reduce the separation distance, due to a number of reasons such as stress on palm terminals, and alterations to penetrations in the blast-resistant wall between the rectifier and transformer units, there are other possible measures that can be applied for ensuring safety, as described in point 4.

4. An exclusion zone could be established around the 600V cabling, which could consist of precautionary signage warning of high magnetic fields, and also boundary markings and/or fencing, located at least 1m away from the cabling. Installation of magnetic shielding is another option that can be considered, for instance if there are limitations allocating the space required for an exclusion zone, though this type of shielding should be avoided where possible as it is generally expensive.

5.2 Interference

5. Except within a 60m radius of the substation, the operation of the proposed substation is not expected to produce RF fields that would significantly add to the ambient levels within the Medium Frequency (MF) band (500kHz to 3MHz) and so should not affect reception of AM radio broadcasts. However, to mitigate the potential interference impact within the 60m radius, it is recommended that RF shielding be installed around the 600V cabling. The detail of the shielding, would need to be designed, though could minimally consist in the form of a metal framed cage-like structure, which would allow access for equipment maintenance purposes and should allow sufficient ventilation.

6. As the RF electric field emissions within the range 30MHz to 1GHz, will largely be impacted by small dimensions and factors of the installed electrical substation (eg. conductor lengths affecting radiation efficiencies, self resonance of the circuit affecting the frequencies emitted, etc…) it is not practical to predict these emissions from the proposed substation. However, these emissions are not likely to significantly add to the existing ambient environment, so would unlikely risk interference to the main types of communications services such as FM radio & TV broadcasts.

5.3 Survey

7. After installation of the substation, it is recommended that an electromagnetic survey be conducted, to assess the final electromagnetic environment, to ensure electromagnetic compliance and compatibility.

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6 APPENDIX

Table 2. Predicted power frequency magnetic fields inside of the proposed Minto Substation when the No 1 set of transformer and rectifier set is operating

Position No. and description in relation to 600 V cabling in the proposed substation (refer Figure 2 for position)

Separation distance from 600 V cabling

(m)

Maximum Magnetic Field

(μT, rms) (1)

a, at Administration Room 10 1.01

b, at southern Switch Room 5 4.04

c, at middle of Switch Room 15 0.88

d, at northern Switch Room 25 0.32

e, at entrance of southern bunded yard No 1 5 7.94

f, at entrance of northern bunded yard No 2 50 0.08

Note: 1. Maximum Magnetic field predicted under maximum loading of the substation.

Table 3. Predicted power frequency magnetic fields inside of the proposed Minto Substation when the No 2 set of transformer and rectifier set is operating

Position No. and description in relation to 600 V cabling in the proposed substation (refer Figure 2 for position)

Separation distance from 600 V cabling

(m)

Maximum Magnetic Field

(μT, rms) (1)

a, at Administration Room 25 0.16

b, at southern Switch Room 30 0.11

c, at middle of Switch Room 15 0.88

d, at northern Switch Room 8 3.10

e, at entrance of southern bunded yard No 1 40 0.12

f, at entrance of northern bunded yard No 2 10 1.99

Note: 1. Maximum Magnetic field predicted under maximum loading of the substation.

Table 4. Predicted power frequency magnetic fields outside of the proposed Minto Substation when the No 1 set of transformer and rectifier set is operating

Position No. and description in relation to 600 V cabling in the proposed substation (refer Figure 3 for position)

Separation distance from 600 V cabling

(m)

Maximum Magnetic Field

(μT, rms) (1)

1, at substation fence, next to northern bunded yard No 2 5.8 5.90

2, at substation fence, middle of the substation 17 0.69

3, at substation fence, next to southern bunded yard No 1 40 0.12

4, next to the cylindrical container 18 0.61

5, next to the nearby building entrance 60 0.06

6, on rail track next to southern bunded yard No 1 18 0.61

7, on rail track next to northern bunded yard No 2 60 0.06

8, on western boundary of railway 35 0.16

Note: 1. Maximum Magnetic field predicted under maximum loading of the substation.

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Table 5. Predicted power frequency magnetic fields outside of the proposed Minto Substation when the No 2 set of transformer and rectifier set is operating

Position No. and description in relation to 600 V cabling in the proposed substation (refer Figure 3 for position)

Separation distance from 600 V cabling

(m)

Maximum Magnetic Field

(μT, rms) (1)

1, at substation fence, next to northern bunded yard No 2 40 0.12

2, at substation fence, middle of the substation 17 0.69

3, at substation fence, next to southern bunded yard No 1 5.8 5.90

4, next to the cylindrical container 60 0.06

5, next to the nearby building entrance 18 0.61

6, on rail track next to southern bunded yard No 1 60 0.06

7, on rail track next to northern bunded yard No 2 18 0.61

8, on western boundary of railway 35 0.16

Note: 1. Maximum Magnetic field predicted under maximum loading of the substation.

Table 6. Predicted 500 kHz to 1.7 MHz Electric Fields at the proposed Minto Substation

Separation distance from 600

V cabling (m)

Maximum Electric Field at 100% Load

(mV/m)

Electric Field at 60% Load

(1)

(mV/m)

Electric Field at 30% Load

(1)

(mV/m)5.8 3.328 1.997 0.998

17 1.136 0.681 0.341

18 1.072 0.643 0.322

36 0.536 0.322 0.161

50 0.386 0.232 0.116

60 0.322 0.193 0.097

100 0.193 0.116 0.058

Note: 1. A 30 % or 60% loading could approximately be indicative of normal hour or peak hour loading, respectively.

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Figure 3. Locations for EMF Predictions Outside of the Proposed Minto Substation

Note: 1. This figure has been altered and scanned for illustration only, and is not to scale.

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GHD 133 Castlereagh St Sydney NSW 2000 - T: +61 2 9239 7100 F: +61 2 9239 7199 E: [email protected]

© GHD 2014

This document is and shall remain the property of GHD. The document may only be used for the purpose for which it was commissioned and in accordance with the Terms of Engagement for the commission. Unauthorised use of this document in any form whatsoever is prohibited.

Document Status

Rev No. Author Reviewer Approved for IssueName Signature Name Signature Date

0 B James A Raleigh M Nelson 22/07/14