Appendix B Consultation Documentation

Review of Environmental Factors Earlwood to Summer Hill Cable Project ◄

REF 282 NIG 12332 WBS SJ-06070 v1.0 5 Oct 2017 UNCLASSIFIED Page 105 of 111

Earlwood to Summer Hill cable project

Community information sessions

Tuesday 21 June - Canterbury Hurlstone Park RSL Club Thursday 23 June - Ashfield Civic Centre

Tonight’s session:

• Introduction to project team

• Two short presentations: – Ausgrid overview, project need and project planning (Matthew Irla) – What to expect during construction (Mayur Kulkarni)

• Questions, comments, feedback (community & project team):

• Next steps: - how your feedback will be used in the project planning - project key dates

Replacing cables between Earlwood and Summer Hill

Area Development Manager Matthew Irla

Overview of electricity network

Ausgrid

5 The Ausgrid network area

• 1.6 million customers – households and businesses • Network covers 22,275 square km – 30,000 substations – 48,000km of power lines and – 500,000 power poles • Building our network today would cost an estimated $38 billion • Currently owned by the NSW Gov.

6 Existing cable route between Earlwood and Summer Hill

7 Project need

33,000 Volt cable cross section • Existing cables:

– 33,000 Volt gas filled

– In service for approximately 50 years.

• Dedicated engineers to monitor cables

• Approaching end of service life:

– Reliability concern

8 What can we do?

1. Do nothing

2. Maintain and repair

3. Replace

 License requirements:

To maintain a safe and reliable supply of electricity to our customers

9 How we plan projects

Sustainable decisions must balance all of these factors

10 Planning so far

• Initial investigations • Pinch point areas highlighted • Site visits and investigations • Potential route options • Desktop analysis • Council meetings • Refine to feasible route options

11 Where we are at now

12 Any questions?

• Questions?

• Comments?

• Feedback?

What to expect during construction

Project Manager Mayur Kulkarni

Typical underground cable project - excavation

15 Typical underground cable project – cable trench

16 Modern typical cable installation – 33,000 Volt cables

backfill

17 Conduit installation

18 Semi-permanent restoration following conduit install

19 Joint bay installation

20 Conduits entering joint bay and communications pit

21 Cable pulling

22 Cable joining

23 Testing

24 Underground 33,000 volt cable installation

25 Similar recent/current cable projects

• Surry Hills to Rose Bay cable project • Engadine cable project • Sydney Olympic Park cable project • Beaconsfield to Kogarah cable project • Homebush to Rozelle cable project • North Shore cable upgrade project • Carlingford cable project • Pyrmont to Camperdown cable project • Pymble to Lindfield project

26 Summary

• Modern cable installation is less disruptive, but there are still impacts we need to manage.

• Factors to consider when planning to install cables are many and sometimes competing.

• Experience of previous projects informs planning.

• Local knowledge is a key part of the process.

27 Any questions?

• Questions?

• Comments?

• Feedback?

28 Next steps:

• How your feedback will be used in the project planning process.

– Feedback forms – Consolidation and incorporation into plans – Decision – Environmental assessment

29 Key dates:

30 Community Newsletter – June 2016 Earlwood to Summer Hill cable project

A similar cable project in progress Consulting on new cables What we have done so far Ausgrid is planning to replace underground electricity Initially our planning focussed on potential ways to cross cables that run between our substations at Earlwood and the Cooks River and the Bankstown Line railway as this would Summer Hill. The existing 33,000 volt cables are nearing the have a significant influence on the potential cable routes. end of their service life and need to be replaced so Ausgrid can maintain a safe and reliable power supply to the area. Potential options for these crossings included boring underneath the river or attaching the cables to existing The new cables would be connected to a new substation bridge structures. A range of initial route options was in Summer Hill which is required to replace the existing developed for further investigation and Ausgrid began facility (known as the Dulwich Hill zone substation) before consultation with the then Canterbury Council (now it becomes unreliable. The new substation is proposed to be Canterbury-Bankstown Council). built on land next door and Ausgrid has been consulting with surrounding residents on these plans. Ausgrid investigated these routes with consideration of the factors listed earlier in this newsletter and after further We are working to plan a cable route between Earlwood and consultation with Council. Summer Hill and would like your feedback on the potential options. Community feedback will be considered by Ausgrid Following this process, Ausgrid refined the potential routes as we make a decision on a proposed cable route and develop to a number of feasible options and we are now seeking the construction plans. community feedback.

You have received this newsletter because you live or work near one of the cable route options we are considering.

There is a map showing the potential cable route options on the inside pages of this newsletter. Have your say Things we consider Community feedback will help Ausgrid choose from As we plan this cable project, there are a range of factors a number of potential cable routes and plan the Ausgrid needs to consider, including: project to minimise impacts during construction.

• cost (minimising the impact on electricity bills) See the back page of this newsletter for details on • community impacts the upcoming community information sessions. • availability of space around existing utility services • environmental and heritage impacts • technical feasibility • traffic impacts • crossing Cooks River and the Bankstown Line railway. Earlwood to Summer Hill cable route options

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Ewen t Yeo Substation Park Park Old Canterbury Rd General route option Route option 1 HURLSTONE Ross St PARK STATION Wallace Ln Route option 2

New Canterbury Rd Underbores Duntroon St

Kroombit St Cobar St Dixson Ave Bridge Arlington St LGA boundaries Abergeldie St Henson St Proposed location of Wills new Summer Hill Ground

James St zone substation Rd Gelding St Dulwich Hill tion stitu n Maddock St zone substation o C Key dates CURRENT STAGE To date May-July 2016 Aug-Oct 2016 Early 2017 June 2017-End 2018

Prepare route Community input Environmental Project approved Construction options on route options assessment (REF) for construction

Feasibility Community sessions REF prepared on Project approved Construction, investigations to introduce project preferred cable route based on REF installing conduits Met with Canterbury and receive input on a REF display Community liaison and cables, and Council to discuss range of options around construction reinstatement of Final community affected areas water and rail Feedback used by feedback as part of plans crossings Ausgrid to refine completed in the project review stages Potential route cable route options options prepared Ongoing community liaison

Community information sessions Ausgrid is holding two community sessions. We invite you to attend the sessions to find out more about the project, provide feedback on potential route options and speak with the project team. No appointment is necessary, just drop in. At the beginning of each session, members of the project team will give a short presentation.

Community session 1 Date: Tuesday 21 June 2016 Venue: Canterbury Hurlstone Park RSL Club RTO Room Address: 20-26 Canterbury Road, Hurlstone Park Time: 6pm to 8pm (presentation from 6.15pm)

Community session 2 Date: Thursday 23 June 2016 Venue: Ashfield Civic Centre Patricia Blackman Room (Room 2) A similar cable project in progress Address: 260 Liverpool Road, Ashfield Next steps Time: 4.30pm to 6.30pm (presentation from 4.45pm) The table above provides an overview of the project stages. After considering and addressing feedback from the community and further planning, Ausgrid will select a preferred cable route for environmental assessment. There will be further newsletters with updates, including information about how we have used the community’s Contacting us feedback. There will also be an opportunity to make a submission on the environmental assessment for this project. You are welcome to contact us with any enquiries: Telephone 1800 214 193 (free call from fixed phones) Email [email protected] Web www.ausgrid.com.au/summerhillcanterbury

Interpreter service 131 450

Printed on 100% recycled paper Community Newsletter 2 – December 2016 Earlwood to Summer Hill cable project Before May 2016 May - late 2016 Late 2016 - mid 2017 Mid 2017 Late 2017 - mid 2019

A similar cable project in progress

Project update Ausgrid has now chosen a preferred route for the new 33,000 volt underground cables from our substation in Earlwood to Key dates the proposed Summer Hill substation. As outlined in our last Now newsletter, Ausgrid is planning to replace cables of the same Preferred cable route proposed voltage before they become unreliable.

You have received this newsletter because you live or work February 2017 near one of the cable routes we have been considering. Environmental assessment (REF) Please see a map of the preferred route on the inside on exhibition pages of this newsletter. On the back page there is more March 2017 information about the project stages, including a time line of Submissions reviewed community engagement.

Community involvement April 2017 Ausgrid started consultation in 2014, meeting with Canterbury Target for planning approval Council (now Canterbury-Bankstown Council) to discuss potential ways to cross the Cooks River and the Bankstown Line railway as this was identified is a significant influence on Mid 2017 the potential cable routes. Target for appointment of construction contractor A range of initial route options were developed and then further refined as investigations continued. These options Mid 2017 were then presented for feedback at community workshops Target for start of construction held in June 2016.

After considering community feedback and completing Late 2018 further planning we now have a preferred route that Ausgrid Planned project completion feels best considers all relevant social, environmental, technical, and economic factors. Mid 2019 Thank you to those who have provided feedback. A summary of Complete final road restoration your feedback and how it was considered by Ausgrid as part of the planning process is now available online - see web address on the back page. Earlwood to Summer Hill cable route

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Ewen t Yeo Substation Park Park Old Canterbury Rd Proposed route Existing bridge HURLSTONE Ross St PARK STATION Wallace Ln LGA boundaries

New Canterbury Rd Proposed location of Duntroon St

new Summer Hill Kroombit St Cobar St Dixson Ave zone substation Arlington St Henson St Abergeldie St Wills Ground

James St Rd Gelding St Dulwich Hill tion stitu n Maddock St zone substation o C Key dates NEXT STAGE Before May 2016 May - late 2016 Late 2016 - mid 2017 Mid 2017 Late 2017 - mid 2019

Prepare route Community input Environmental Project approved Construction options on route options assessment (REF) for construction

Feasibility Community sessions REF prepared on Project approved Construction, investigations to introduce project preferred cable route based on REF installing conduits and receive input on a and cables, and Met with Canterbury REF display Community liaison range of options reinstatement of Council to discuss around construction Final community affected areas water and rail Feedback used by plans feedback as part of completed in crossings Ausgrid to refine the project review stages cable route options Potential route Ongoing options prepared community liaison

Project approval process Under the NSW Environmental Planning and Assessment Major crossings There were several options considered for the Cooks Act 1979, Ausgrid is the consent authority for this project. River and Bankstown Line rail crossings, including A range of factors including health and safety requirements suggestions from the community. Ausgrid has and value for money are considered in the finalising of the assessed all options and found that the proposed cable route and the construction plans. crossings below are preferred as they best meet As part of this process, a Review of Environmental Factors all the factors Ausgrid is required to consider in (REF) is being prepared. This process involves preparation of planning for a cable project. specialist studies and input from the community, councils and The community feedback summary which is on the other authorities. project web page (see address at bottom left) has The REF will be placed on exhibition at several locations and more details on how the options were considered. the community invited to make submissions. People along the Foord Avenue bridge - Cooks River proposed route will receive a newsletter with further details Ausgrid understands from local feedback that on this process. the bridge is used to access the sports fields, train Following the REF exhibition, Ausgrid will review all station and local school. submissions and prepare a report. Ausgrid will then Ausgrid will consult with the community to better determine the project for approval based on information understand how the bridge is used so that we can contained in the REF, the specialist reports, the submissions plan to minimise impacts on bridge users. This report and other relevant documents. consultation will occur before plans are finalised.

Keeping you informed If you are interested in providing input, please Properties along and near the preferred cable route will register your interest via the contacts below left. receive further updates as the project progresses. The latest project information will also be available on the project web Foord Avenue underpass - Bankstown Line railway page (see below). If you would like to receive project updates To minimise impacts on surrounding residents, electronically, please email us with your details. Ausgrid is planning to coordinate works with Council and install conduits (plastic pipes) for this project as part of their road upgrade. Contacting us You are welcome to contact us with any enquiries: T 1800 214 193 (free call from fixed phones) E [email protected] W www.ausgrid.com.au/summerhillcanterbury

Translating and Interpreting Service: 131 450 New electricity cables between Earlwood and Summer Hill Community feedback summary

December 2016 Contents

1 Introduction...... 3 1a Community sessions snapshot...... 3 1b Early engagement...... 3 2 Community engagement overview...... 4 2a Why we engage with the community early...... 4 2b Planning cable projects...... 4 2c Project and consultation stages...... 4 3 Community sessions feedback...... 5 3a Overview...... 5 3b Feedback on the presentations...... 5 4 Route options...... 6 4a Summary of the area...... 6 4b Major crossings...... 6 4c Route options...... 6 5 Comments on route options...... 7 6a Alternate option 1...... 9 6b Ausgrid’s response...... 9 6c Alternate option 2...... 9 6d Ausgrid’s response...... 10 6e Alternate option 3...... 10 6f Ausgrid’s response...... 10 6g Alternate option 4...... 11 6h Ausgrid’s response...... 11 7 Questions about the route options...... 12 7a Questions about the existing route...... 12 7b Questions about the presented proposed route options...... 12 7c Foord Avenue Bridge...... 13 7d Construction...... 13 7e Reinstatement of trenched areas...... 15 7f Vegetation...... 15 7g Environmental assessment...... 15 7h General questions about electric and magnetic fields...... 15 7i Electric and magnetic fields (EMF) - project specific questions...... 16 8 Ausgrid summary...... 17 9 Next steps...... 18

2 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary 1 Introduction

Ausgrid is planning to replace underground electricity cables that run between our substations at Earlwood and Summer Hill. The existing 33,000 volt cables are nearing the end of their service life and need to be replaced so Ausgrid can maintain a safe and reliable power supply to the area in the future.

The existing cables between the existing substation in Summer Hill and the substation in Canterbury have been targeted for replacement by the end 2018. The new sections of cables would be approximately 4.4 kilometres in total length (depending on the final confirmed cable route).

On 21 June and 23 June, 2016, Ausgrid held two information sessions, one at the Canterbury Hurlstone Park RSL Club and the other at the Ashfield Civic Centre, to seek local information and community feedback on potential cable routes. Interested community members were invited to the workshop directly through newsletters, social media and advertisements in local newspapers.

Two presentations were given at the community information sessions, one on the project need and planning to date, and the other on the construction process.

This report is a summary of feedback received at the information sessions and via direct feedback to Ausgrid after the sessions. Community feedback has been considered by the project team as part of the process to refine the options to a proposed route for further discussion with the wider community.

1a Community sessions snapshot • Ausgrid gave presentations on the project need, the planning process and general information on cable projects. • Attendees and direct respondents provided feedback on the cable options presented and on the construction process. • Community members also provided information on local areas and issues. • Other route options were also provided to Ausgrid at a later date by the community for consideration.

1b Early engagement • Early and open engagement with the community on the proposed works. • Local input on potential issues and on the presented cable route options. • Community feedback to be used as part of the process to refine the potential routes to one option.

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 3 2 Community engagement overview

2a Why we engage with the community early Early community engagement can: • help to better plan and deliver a robust project • effectively identify, assess and plan to minimise impacts from the works by engaging community early enough to incorporate feedback into the planning process • keep potentially affected community informed of the proposal and why we need to do the work • minimise surprises and impacts on the community. Local information is being sought from key stakeholders on: • areas of local significance • roadways, traffic/parking • parks/reserves, trees/vegetation • future land use • other local information.

2b Planning cable projects Ausgrid needs to consider multiple factors when planning to install new cables. These factors include: • the condition of existing cables, i.e. when they need to be replaced • feedback from local residents, businesses, community groups, other utilities, councils and other stakeholders • minimising impacts on the local environment and communities • considering areas of local importance/interest • keeping project costs down to minimise impacts on electricity bills • ensuring cables are installed and operated to relevant environmental, health and safety standards and guidelines.

2c Project and consultation stages Initially Ausgrid’s planning focused on potential ways to cross the Cooks River and the Bankstown railway line as crossing at these locations would have a significant influence on the potential cable routes.

Potential options for these crossings included boring underneath the river or attaching the cables to existing bridge structures. A range of initial route options were developed for further investigation and Ausgrid began consultation with the then Canterbury Council (now Canterbury-Bankstown Council). Ausgrid investigated these routes with consideration of a range of factors and with regular consultation with Council. Following this process, Ausgrid refined the potential routes to a number of feasible options for community feedback.

Community information sessions were held on 21 June and 23 June 2016 to provide attendees with information about the project and to seek local feedback on the presented potential route options. All feedback received at the sessions and directly to Ausgrid via email and phone calls was considered by the project team as part of the planning process. Community feedback received as part of this process and how this feedback has been considered is summarised in this document. NEXT STAGE Before May 2016 May - late 2016 Late 2016 - mid 2017 Mid 2017 Late 2017 - mid 2019

Prepare route Community input Environmental Project approved Construction options on route options assessment (REF) for construction

4 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary 3 Community sessions feedback

3a Overview Community information sessions were held on 21 June and 23 June 2016 to provide attendees with information about the project and to seek local feedback on the potential route options.

At the community information sessions, members of the project team gave two presentations - one on project need and on the project planning process, and the other on what to expect during construction of a typical underground 33,000 Volt cable project. These presentations can be viewed via the project web page - www.ausgrid.com.au/summerhillcanterbury.

3b Feedback on the presentations • Workshop participants who gave feedback said that after listening to the presentation, they understood why Ausgrid plans to replace the existing cables. • All said that the presentations were clear and easy to understand. • All respondents who gave feedback said they had enough information to understand why Ausgrid is planning this project. • Workshop participants that gave feedback agreed that they had enough information to understand how Ausgrid completes a typical 33,000 Volt underground cable project. • Attendees were also asked to provide general feedback on the presentations; one respondent thought that some of the presenters repeated themselves, another attendee was disappointed that all questions that were asked during the community session could not be answered and that the presenters focussed on the positives of the project rather than the negatives. Ausgrid has considered this feedback to improve future communty engagement presentations.

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 5 4 Route options

4a Summary of the area The suburbs that were considered as locations to install the new cables included Earlwood, Hurlstone Park, Summer Hill and Dulwich Hill and span the Canterbury Bankstown Council and the Inner West Council LGAs. The suburbs are mainly residential with local shops. Summer Hill is characterised by a number of heritage listed buildings. In between the Canterbury and Dulwich Hill substations is the Cooks River and the Bankstown train line. The opportunities to cross the river and rail are limited and so planning these crossings largely informed the route options that were presented to the community for feedback. 4b Major crossings Initial planning identified the options to cross the Cooks River at the Foord Avenue bridge and the rail line by trenching in the Foord Avenue underpass. Other crossings presented to the community included a bore under the Cooks River at Thompson Street and crossing the railway line using the Melford Street Railway Bridge. While other options were looked at to cross the river and rail line, these options were identified as the most feasible and so were presented to the community for consideration. 4c Route options The route options that were presented to the community for feedback can be seen in the map below. This map was included in the community newsletter, placed on the project web page and discussed at the community information sessions. At the community information sessions, Ausgrid talked about the presented route options and the rationale behind the choice of the options.

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Ewen t Yeo Substation Park Park Old Canterbury Rd General route option Route option 1 HURLSTONE Ross St PARK STATION Wallace Ln Route option 2

New Canterbury Rd Underbores Duntroon St

Kroombit St Cobar St Dixson Ave Bridge Arlington St LGA boundaries Abergeldie St Henson St Proposed location of Wills new Summer Hill Ground

James St zone substation Rd Gelding St Dulwich Hill tion stitu n Maddock St zone substation o C

6 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary 5 Comments on route options

Attendees were asked to provide general comments on the presented route options. These comments have been considered by Ausgrid as part of the process to refine the options to a preferred cable route. These comments and Ausgrid’s responses are outlined below.

5a Avoid Hurlstone Avenue - Keir Avenue • Reason: accumulated noise and disruption • “Existing train traffic, goods trains, track work, upcoming construction of the Sydney Metro City and Southwest to Northwest Rail Link - while we understand that Ausgrid’s construction period will be finite, to have major infrastructure construction work occurring both at the front and back of the house, even for that period, would be very difficult)”. • Reason: existing high voltage power lines in the area • “From the railway line - while we (the resident) accept that there is little evidence of the negative health effects of EMF at the distances concerned, the negative psychological effects of living between (i.e. feeling wedged in by) two rows of high voltage cabling could be considerable)”. • As part of the environmental assessment, Ausgrid considers accumulate impacts from other construction projects and outlines mitigation measures required. Mitigation measures include coordination with other utilities and any other projects in the area to minimise impacts on the surrounding community. The factors listed above would be considered if it were to become part of the preferred cable route.

5b Advance communication about any closure of Foord Avenue lane way and preferably work during the week only • Reason: heavily used by people walking to the train station, to school and to sport in the park • Ausgrid will keep potentially affected community updated during all stages of project planning and construction through newsletters, notifications and web site updates. If the cables were to be installed along the Foord Avenue lane way, Ausgrid would engage directly with people who use the lane and work to minimise impacts, including timing of the work. • Impacts could be minimised by working through the school holidays or working certain hours.

5c Melford Road/ Hurlstone Park route is more cost effective • Reason: it is a shorter and more direct route and it also wouldn’t be as disruptive as closing the Waterside Crescent [Foord Avenue] lane way and bridge. • Response provided in 6a and 6b - Alternate option 1 and above (5b) for planning potential works on Foord Avenue bridge and Foord Avenue laneway.

5d Limit cable installation in James Street • Reason: accumulated impacts for residents of James Street • “As a result of plans to replace the Summer Hill substation there are impacts both in relation to EMF and construction impacts. It is also less disruptive to Old Canterbury Road traffic (busy road with morning peak hour traffic eastbound sometimes building up for a kilometre back from the railway line underpass and afternoon peak hour traffic westbound building up more than half a kilometre back from New Canterbury Road).” • If James Street was to be considered as part of the proposed route, these impacts would be assessed by Ausgrid in the environmental assessment (which will go on public exhibition for comment). The contractor doing this work would also be required to have a construction environment management plan that outlines the steps that will be taken to minimise community disruption during the proposed works. This plan is to be in line with the project’s environmental assessment and to be approved by Ausgrid before any work can start. Additionally, directly impacted residents would be consulted with to further mitigate.

5e Coordinate with Council for any work in Waterside Crescent • Reason: less disruption for residents of Waterside Crescent • “City of Canterbury-Bankstown Council has made an allowance in the Canterbury Bankstown Operational Plan 2016/2017 under the Road to Recovery Program that $650,001 has been allowed to fix the roadway in Waterside Crescent. Can Council and Ausgrid coordinate the works required to happen in conjunction to one another in 2017 so that the road does not need to be ripped up twice?” • Yes, after further planning and meetings, Ausgrid and Council will coordinate works in Waterside Crescent. This includes Council’s plans to install storm water pipes. • Section 7f - Restoration has more detail on coordination.

5f Utilise the Karool Bridge* • *note that Thompson Street was mentioned in the feedback but after checking with the respondent it was clarified to mean the Karool Bridge.

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 7 • The bridge ‘is due to be replaced by Council shortly by building a new bridge next to the old bridge allowing it to be removed’. Please see response in section 7a - Questions about the existing route.

5g Concerns about the cable route in residential streets • Ausgrid understands that the community often have concerns about higher voltage cables being installed in residential streets and that most people would prefer to not have them in their street. However all routes for cables going to zone substations, such as the one in Summer Hill, generally have to pass through some residential areas as this is where substations in Sydney are generally located and where they provide reliable electricity supply to the surrounding areas.

5h Concerns about EMF on the bridge • Please see responses in section 7h and 7i.

8 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary 6 Alternate options In addition to Ausgrid’s presented options, several attendees later provided route options for consideration by Ausgrid. These are outlined below. Ausgrid’s consideration of these options is also covered below.

6a Alternate option 1 • Feedback from one attendee said that Ausgrid had mentioned that it was difficult to cross the river and the railway and that another factor to consider was the amount of traffic on both New and Old Canterbury Roads. • The attendee suggested an alternate route which involved turning right into Union Street, “this street goes directly over New Canterbury Road” to Myra Road, turn right into The Parade, then left from The Parade into Garnet Street, crossing the railway bridge and continuing downhill until Garnet Street becomes Tennant Street and then either go along Tennant Street/ Ewen Park and exiting at Foord Street bridge, “easiest to build, least obtrusive and shorter”, going via the small footbridge near Wills Oval, “not sure of rating though” or through golf course and onto Wardell Road Bridge. • This option was presented as having two corners after Constitution Road “not the six or seven in Ausgrid’s options”, has a rail bridge and the build time would be reduced in any of the three options by going via Ewen Park. • This option also provided a selection of three river crossings and the attendee said it was the shortest crossing of Old and New Canterbury Roads.

6b Ausgrid’s response • Initially Ausgrid’s planning focused on potential ways to cross the Cooks River and the Bankstown Line railway as this has a significant influence on the planning of the potential cable routes. Avoiding the busy New and Old Canterbury Roads as much as possible was another factor that was considered in the preliminary planning stage. • During initial site investigations, Ausgrid engineers also assessed a similar route down Garnet Street. As the option above identified, the route has merit by minimising the number or turns and is of similar distance to Ausgrid’s preferred options. • The Garnet Street Rail Bridge has two service corridors on each edge which can house services such as electricity or water. Ausgrid’s ratings team assessed an identical situation at Melford Street. Due to the confinement of the service corridors and the heat that is transferred through the concrete covers, the desired ratings for the cables could not be achieved and so would not be a feasible option at either locations. • The Foord Avene underpass provides Ausgrid with a rail crossing without the potential structural, maintenance and possible replacement considerations generally associated with a bridge. There is also time frames to factor in as rail outages would be required and the approval proces can also take time. • The above proposed route also traverses parts of the same route as existing underground 132,000 Volt cables - this would cause significant design and construction issues as the new cables would have to be installed next to live cables. There are associated clearances required both for safety of workers during installation but also for the performance of the cables. There may also not be space within the roadway. • Ausgrid also aims to minimise traffic and construction impacts in busy areas such as shopping centres, schools and churches. This option also passes the Catholic Parish of Dulwich Hill which is an area Ausgrid would try to avoid. • While Ausgrid generally installs cables of this voltage in the roadway, installation through grassy areas would likely be less expensive and quicker than in roadways as outlined in the option above. This is a feasible alternative, however the option is still constrained by the location of rail and river crossings. • The Lang Road Footbridge is a possibility, however adds significant distance to the route so for this reason is not as preferable as the route options that Ausgrid was considering. Canterbury Council is also planning on replacing this bridge in the near future. • Wardell Road Bridge is too far away to consider as a feasible option. • While Ausgrid plans to minimise the amount of bends on a cable route, the current options are on fairly wide streets so the 33,000 Volt cables would be able to achieve a gradual bend, rather than a right angle turn, making the issue of bends not a significant issue for this proposal.

6c Alternate option 2 • Another attendee suggested using the new footbridge across the Cooks River at Sugar House Road to replace the existing bridge (where the current cables are located) because it would be a more direct route and less costly. • This alternate route involved exiting the Canterbury sub transmission station to the south or west as necessary into the adjacent Pat O’Connor Reserve, following the high voltage aerial transmission tower corridor northwest alongside Cup and Saucer Creek to the southern bank of the Cooks River and crossing the Cooks River at the newly constructed footbridge in a similar locality to the current crossing. • The option was presented to Ausgrid as being more direct, with simplified construction due to trenching through grass, no traffic or minimal resident disruption, and no cable proximity to residences.

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 9 6d Ausgrid’s response

Cost considerations • While cost is a consideration as mentioned in the alternate options (by utilising the new bridge at Sugar House Road), there are many factors Ausgrid needs to consider when determining a preferred route to ensure that all technical, environmental, community, safety and economic factors are addressed. • Once Ausgrid is assured that all factors have been considered appropriately, then the proposal passes through an approval process before a budget is determined. However during the planning stage, the project team use basic metrics such as the cost to install lengths of cable based on previous projects to get an estimate of costs. As further planning is completed, these costings become more accurate as ground conditions are investigated and more information is gained. • While cost is one of the key considerations, it is only one of the factors that are considered as part of the process to plan new cables.

Potential easements • This option would potentially require easements between Cooks River and Hurlstone Avenue. • Another consideration is that an easement would need to acquired to traverse Cup and Saucer Creek and that the required approvals would likely to not be gained in the time frame required to replace these cables. • Areas where easements are required are generally avoided as they take time to obtain and the landowner doesn’t always want an easement on their property. • Issues with both private land ownership and Crown land near the Cooks River have ruled this option out as feasible due to time frames relating to gaining easements. In addition, Ausgrid generally avoids easements on private property where possible. Other factors in the area to consider are the large water main between Ann and Burlington Streets, with additional costs to go over or under it. The cables would also have to go flat across the large water main in Woolcott Street.

River crossings • Ausgrid looked into the possibility of crossing the river with a bridge at Karool Avenue and talked with Council about their plans for a new bridge, however it is likely the time frames for approvals for constructing piers in the Cooks River would not meet the required time frames to replace these cables.

Canterbury substation • Another factor is that the conduits have already been installed within the Canterbury substation facing east and there is not the required space to be able to turn the cables within the substation to be able to exit at Pat O’Connor Reserve. • There are also ten groups of cables within the substation; two overhead and underground poles and an overhead transmission tower which make this section of the substation already too congested. There would not be enough room for the new cables to be installed to make this option feasible. • For this reason, custom built conduits have been installed to lay cables from the switch room inside the Canterbury substation to McGrath Street. 6e Alternate option 3 • “An inferior alternative is to follow route option 1 onto Woolcott Street, continue along Woolcott Street until it joins the path alongside Cup and Saucer Creek with the remaining route same as described above. • North of the Cooks River the direct cable route is north along Sugar House Road, then turn eastward into Hutton Street, then northward into Melford Street using the existing road bridge over the railway line. • An alternative railway crossing is the Church Street footbridge at the southern end of Church Street , then Canberra Street back to Melford Street, then northwest until it reaches the corner with Wallace Lane, continue along Melford to New Canterbury Road, then continue along Route option 1.” 6f Ausgrid’s response • This option is direct, cost effective and time would be reduced by being able to trench through grassed areas and these are some of the factors that Ausgrid has been considering when planning this route. • However there are still factors such as easements, approvals, the ability to cross the rail lines at Melford Street and how the cables exit the Canterbury substation that make this option in its entirety less feasible than the other options that Ausgrid has been considering. • The Melford Street overpass has two service corridors covered by concrete plates on both the eastern and western side. The eastern side currently houses our existing cables and the western side currently contains a water main. In addition, Sydney Water plans to install a sewer line in this overpass. Each corridor is approximately 1300mm wide by 270mm deep. Initial investigations and measurements taken showed that Ausgrid could actually fit the new cables alongside the existing cables. • However after further investigation, it was found that due to insufficient cover and heat from the concrete footpath (as mentioned in section 6b and 7a), the cables would not be able to meet the required ratings if installed in the overpass.

10 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary • The project looked at numerous proposals for installation, however for the new cables to be accommodate the forecast load growth in the area, no possible configuration could achieve the required cable ratings. • In addition,there are too many services already in Woolcott Street, making it unlikely that Ausgrid would have the space to install the new cables. 6g Alternate option 4 • Feedback from another resident included estimating the costs (based on length of the route) and suggesting an option that they thought would cost less than the presented options, generating savings that would enable Ausgrid to be able to construct a new footbridge over Cooks River. The resident said that the new bridge would also benefit the surrounding community and councils and mean that Ausgrid would not have to rely on the existing Council asset of the Foord Avenue footbridge. • This resident also commented on the structural condition of the Foord Avenue footbridge, stating that: “the Foord Avenue footbridge is a newer superstructure supported by the original bridge’s concrete piers - these show signs of concrete spalling and the remaining bridge life will likely be less than the design life of the new cable installation - seriously calling into question the value of this approach when it isn’t even the most upfront cost effective option. “ • Other issues that were raised were the need for potential easements between Cooks River and Hurlstone Avenue as one of the route options appeared on the map to go under private houses to reach Hurlstone Avenue. • This resident also asked for Ausgrid to ensure that any road or path surface restoration is done “to a high standard that does not pose a hazard to cyclists as they are often forced to ride along the line of the old/new join and any lips are dangerous”. He said, ‘ideally trenches would be located in the centre of the road away from the outside lane areas used by cyclists’. Council would find this aesthetically unacceptable. As the cables would be underground and then overhead to cross the river, it would also require overhead to underground poles which are also not visually pleasing. There are also implications for undergrounding our electricity network that would have to be considered. 6h Ausgrid’s response

Foord Avenue footbridge • In regards to the structural integrity of the Foord Avenue footbridge, Ausgrid’s structural engineers completed an early assessment of the bridge using information provided by Canterbury Bankstown Council. Ausgrid’s structural engineer also noted signs of concrete spalling, however deemed them to be minor and manageable with only minor works required. Further assessment will be undertaken to confirm this.

Foord Avenue underpass • The option to install the cables in the Foord Avenue underpass provides Ausgrid with the cable ratings required and an option to cross the railway lines without the extensive approval process related to crossing rail assets or structural assessment of the bridge asset - both of which can take time. • Ausgrid has been talking with Canterbury Bankstown Council in regards to their plans for the Foord Ave railway underpass and Ausgrid is looking to coordinate works with Council to install conduits there to minimise potential further impacts.

Cyclists • In regards to cyclists, Ausgrid generally locates the trench towards the centre of the road, however the cable alignment is to an extent largely determined by existing services in the roadway.

Potential easements • See reponse at 6d but areas where easements are required are generally avoided.

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 11 7 Questions about the route options

7a Questions about the existing route Several questions were asked by community members about reusing the existing cable route. These questions and Ausgrid’s responses are outlined below.

Q. Why can’t Ausgrid go back to the existing route? A. Ausgrid considered the existing cable route as one of the first options as it is the most direct route between substations. Following community feedback, the project team looked at this option again. There are several factors that make this option less feasible than the other options that were being considered. One is not being able to utilise the Melford Street Bridge as the construction of the bridge, essentially a concrete box, wouldn’t allow for the new cables to be kept sufficiently insulated to be able to work efficiently and meet demand in the future. The second factor is that the Karool Bridge which currently contains Ausgrid’s existing cables needs to be replaced. Ausgrid has been talking with Canterbury Bankstown Council about their plans to replace the bridge including time frames and costs to see if this could be a viable option.

The existing route runs along Old Canterbury Road. As it is a busy road, it is likely that the relevant road authority would only allow Ausgrid to work at night. This would cause extended disruption to surrounding residents. It is also a concrete road which is much more expensive to excavate and restore than asphalt roads and also is more expensive and takes more time to complete.

7b Questions about the presented proposed route options At the community sessions and as feedback provided later, several questions were asked about the presented proposed route options. The questions and Ausgrid’s responses are outlined below.

Q. Why can’t you bore under the Cooks River next to the Karool Bridge? A. While a bore is feasible, it is not Ausgrid’s preferred option due to the costs associated with this type of crossing, potential environmental risks (such as drilling fluid leaks, disturbing ecologically endangered communities or areas that have been regenerated by local bush care groups) as well as technical considerations (cables not performing as well when installed at depth and at certain ground conditions).

Q. What determines the cost of a project? A. The cost of a project is determined by factors which include route length, crossings, i.e. bores are generally more expensive, type of road surfaces to be replaced, i.e. concrete is generally more expensive than asphalt, working at night rather than day works – cost of resources. Q. If the length of the route is a driver, why don’t you put in a new bridge in Karool Avenue next to the existing bridge (and cables)? A. The length of the route is a driver as the most direct route can cost less and cause less community disruption by passing less residences, but it is just one of that factors that Ausgrid considers. The benefits of a more direct route are weighed against the cost of a new bridge, the disruption caused by the construction of a new bridge and the time it would take to get the necessary approvals and construct. However as already mentioned, Canterbury Bankstown Council is planning to replace the existing Karool Bridge and Ausgrid has been talking with them about time frames and costs to see if this option is a feasibility. Another key consideration is the crossing of the Bankstown Line railway and also as already mentioned, Ausgrid see that the most feasible option currently is the Foord Avenue underpass. Q. Why can’t you build a power line over the Cooks River? A. Ausgrid could potentially construct a new power line over the Cooks River; however Ausgrid feels that the broader community would find this aesthetically unacceptable. As the cables would be underground and then overhead to cross the river, it would also require overhead to underground poles which are also not visually pleasing. Q. What are the costs per metre? A. As already discussed above, Ausgrid estimates costs per metre from previous similar projects to be able to bench mark and compare route options. As part of the planning process, Ausgrid is then required to minimise project costs as much as possible (to minimise costs being pasted onto electricity customers). Once a preferred route has been proposed, the project team than estimate costs and seek approval for this funding to complete the project. This includes comprehensively justifying the requested funding. Q. What are the costs of the bore? A. Like estimating costs per metre, Ausgrid estimates bore costs from previous projects to be able to bench mark and compare route options. However it is important to note that the costs are not the only factor when considering major crossings. Other significant factors are environmental and technical risks associated with a bore of this depth and length. Costs are assessed as a cost benefit rather than the cost alone. Q. Why did Ausgrid only choose the two routes from Canterbury to Summer Hill? A. Ausgrid initially started with over twelve possible variations on options to install cables between Earlwood and Summer Hill. These

12 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary were refined after meetings with councils and Members of Parliament and further planning. The options presented to the community are the options that Ausgrid thought were potentially feasible and were currently being considered. Following community feedback on these options, Ausgrid has revisited several variations, such as the existing route to reassess as potential options. Q. Why doesn’t Ausgrid use Cup and Saucer Creek and then go back down the creek? Ausgrid is limited in the locations where the cables leave from the Canterbury substation as there are a lot of cables there already. In addition, if Ausgrid utilised a crossing of the river at this location, the entry and exit points would need to be resolved as it seems that crossing Melford Street or Church Street rail bridges are not feasible. We would also have to consider easements and the likely lack of space to install new cables in Woolcot Street (as already mentioned).

7c Foord Avenue Bridge Q. Are Ausgrid’s structural engineers confident that the Ford Avenue Bridge can support both the cable weight in addition to the bridge fully loaded with human traffic? A. Ausgrid’s structural engineers have assessed that the Foord Avenue Bridge can support both the new cables while being able to maintain its current function as a pedestrian bridge. In addition Canterbury Bankstown Council had the bridge assessed independently five years ago and found the bridge to be in a fair condition.

Q. What is the life expectancy of the bridge? A. It has been assessed that the life expectancy of the bridge’s components range from 30 to close to 70 years. Q. What is the life expectancy of the cables? A. The life expectancy of the cables is about fifty years, but Ausgrid monitors the condition of cables in our network regularly. Q. If the cables are installed on the bridge, does that mean that Council would not be able to replace the bridge in the future? A. If the cables were to be installed on the bridge, Ausgrid would likely enter into a type of license agreement with Council but this would not prevent the bridge from having to be replaced if required. Q. Will there be any significant changes to the bridge’s structure (if so, could you supply an artist’s impression)? A. If the cables were to be installed on the bridge, Ausgrid would design the cables to be installed as unobtrusively as possible, i.e. under or on the side of the bridge. Designs for this would only start, once there is one proposed cable route. At that stage, if required, Ausgrid would be able to prepare an artist impression so community could get a realistic view on what the bridge would look like and also be able to provide informed feedback. However Ausgrid would plan to not affect the appearance of the bridge. Q. If you put the cables in the bridge, who would maintain it? A. As mentioned above, Council and Ausgrid would likely enter into an agreement that outlines this but generally Council would continue to maintain the bridge and Ausgrid would maintain the cables. Q. How much distance do you need either side of the trench? A. Generally Ausgrid’s work site would be five metres either side of the trench, but it does depend on the area. Narrower areas might need a smaller footprint and so smaller equipment would be used, with the work site being located outside of the area. Q. Will these new cables replace the overhead power lines that are in the Pat O’Connor reserve area? A. No. Ausgrid is replacing existing 33,000 Volt cables that run underground between Earlwood and Summer Hill that are ready to be retired. Q. Will any of the cable route options go through private property? A. No, Ausgrid avoids going through private land wherever possible due to the difficulty and time it takes to get an easement and because of the potential community disruption. If Ausgrid were to utilise part of the existing route, an easement would be required through private property.

7d Construction Q. How would the work be completed in the Foord Avenue lane way as it is very narrow? A. If the cables were to be installed in the path that runs to the Foord Avenue footbridge on the Earlwood side, Ausgrid would use smaller low impact equipment in this area. Q. How long would it take to install the cables across the Foord Avenue Bridge and would access be restricted? If the cables were to be installed in the Foord Avenue Bridge, the time frames would depend on the methodology, however as the bridge has been highlighted as a popular way for community to get to the park, to the train station and to schools, Ausgrid would work to minimise impacts from any work. This would include planning to work at times when the bridge was used least and trying to minimise any closures. Ausgrid would complete further consultation with bridge users if it becomes part of the cable route.

Q. Wouldn’t there be less impacts on the community and environment if Ausgrid used a bore the cross the Cooks River? A. As already mentioned, due to the technical difficulty of this type of bore (the bore would have to be deep and long to cross the Cooks River), there is a greater possibility for issues and so it would potentially take longer to complete the work than it would installing cables over an existing bridge. There are also potential environmental risks (leaking of drill fluid, disturbing endangered ecological communities communities or areas that have been regenerated by local bush care groups) and cable rating issues to consider due to the increased depth of cover. Ausgrid generally considers a bridge crossing to have less impact on the community and

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 13 environment than a bore of this type. Q. How does Ausgrid avoid existing pipes and underground infrastructure? A. Ausgrid has already completed desktop studies, using Dial Before You Dig drawings that identify existing services. In addition, site investigations are completed to physically identify underground services as well assess the ground conditions. In areas where they are many underground services, Ausgrid would modify construction activities, often hand digging around the infrastructure. Q. What depth are the cables? A. Generally, trenches are dug using an excavator and are approximately 1.5 metres deep and 1.3 metres wide with plastic conduits (pipes) being placed in the trench. Q. Do you put these cables in a trench with other services? A. Ausgrid doesn’t generally put cables in trenches with other services other than fibre optic cables for our network as there are technical requirements that require certain distances to be kept from other services. There are also safety considerations when working near cables that are in operation. However where possible and it is efficient to do so, like for this project, Ausgrid will place a spare conduit in the trench to be utilised later, if required, without having to trench the road again. Q. If you trench in Waterside Crescent, how will it affect Council’s plans to resurface the area? A. Canterbury Bankstown Council has told Ausgrid about their plans to repair Waterside Crescent and we have planned to work together to minimise impacts. Ausgrid and Council would work together to coordinate works where possible to try to minimise disruption and impacts on residents on streets where the new cables would be laid. Q. What is the distance between joint bays? Ausgrid generally installs joint bays every 500 to 570 metres. The exact location of joint bays along the cable routes would be finalised once the cable route is confirmed and a contract awarded. The contractor would then prepare a detailed project design, including the location of all joint bays. Q. Do you put joint bays in driveways? A. No, Ausgrid tries to avoid driveways. As soon as the project team has planned where the joint bays will be located, consultation starts with the immediate neighbours. This is done at least 21 days before the joint bay is excavated in the roadway. Ausgrid and the contractor make contact with all residents adjacent to the joint bays well in advance of work starting to discuss the construction process. Generally joint bays remain in place for a couple of months but access to properties is maintained. This amount of time is required to allow the pit to be excavated, the cables to be pulled through and specialist crews to undertake cable joining work inside the bay. This is done in stages. Q. How long is the construction process? A. Ausgrid estimates that it would take about one year to finish the construction of the entire project and then an additional six months to test and commission the cables and complete the final restoration of the affected areas. After a contractor has been confirmed and further planning completed, a more detailed program will be prepared. The contractor will be able to advise where they plan to start the works and whether there would be several crews working at multiple locations. Q. Will you put the cables in the grass verge? A. Cables of this voltage are generally installed in the roadway with the pavements and grass verge allocated for lower voltage cables or power lines. Q. Will the final road surface be safe for cyclists to use, i.e. no lip between restored areas and existing road? A. As already mentioned, trenches are generally located within the centre of the road, however the cable alignment is largely determined by existing services in the roadway. During construction, control measures would be put in place to ensure the safety of cyclists. Steel plates are usually used to cover any open trenches between shifts and these areas would be sign posted. Trenches are temporarily restored with hot mix asphalt which is equivalent to a normal road surface (except with seams down either side of the trench). The temporarily restored areas are then regularly monitored to ensure surfaces are safe for all road traffic. At a later date the road is reinstated permanently in consultation with local councils or the relevant road authority by specialist road construction crews. Q. What is the total budget? A. As already mentioned, as part of the planning process, Ausgrid is required to minimise project costs as much as possible (so additional costs aren’t passed onto electricity customers). Once a preferred route has been proposed, the project team then estimate the cost of the project. Approval is then sought to fund the project. This process includes having to comprehensively justify the requested funding. Q. What does Ausgrid do with the existing cables? A. The existing cables remain in the roadway after they have been safely removed from service (de-pressurised and decommissioned). It is considered by Ausgrid to be expensive and disruptive to the community to remove them. Q. How do you know where the existing cables and other infrastructure in the ground are located? A. As already mentioned, Ausgrid completes desktop studies, using Dial Before You Dig drawings that identify existing services. In addition before any work starts, site investigations are completed to physically identify underground services as well assess the ground conditions. In areas where they are many underground services, Ausgrid would modify construction activities often hand digging around the infrastructure.

14 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary 7e Reinstatement of trenched areas Q. How will Ausgrid work with Council to avoid digging up roads that they plan to resurface? A. Ausgrid has met early with councils in the areas where we are planning to install cables to receive local information as well as to get details on their program of works. These meetings continue throughout all stages of the project to keep councils updated on our plans and to coordinate works where possible to try to minimise having to excavate after any council road restoration.

7f Vegetation Q. If the new cables are installed across Foord Avenue footbridge, will it affect the adjacent area that has recently been regenerated at the Cooks River bank? A. Ausgrid has met with the local ecological volunteer group, the Mud Crabs, on site to discuss potential proposed works in relation to the work they have been doing in the area. At this stage, if the cables were to be installed at this location, Ausgrid would work with the Mud Crabs to ensure the regenerated areas were not affected. In addition, when Ausgrid has a preferred cable route, an environmental assessment would be completed on the proposal which would outline any required mitigation requirements such as fencing off regenerated areas during construction. Q. How will Ausgrid protect the root systems of street trees during construction? A. Trenches are generally set back from street trees and outside the tree protection zone but there will be places along the route where the cables will be installed near the kerb line. An arborist assessment will be completed for a lot of the route as part of the environmental assessment. In addition, if trees roots are in the road, generally non-destructive digging would be used where required or the trench location may be altered if possible – this would be identified as part of the project’s environmental assessment and the specialist arborist report.

7g Environmental assessment Q. What role does the environmental assessment have in shaping the project options and the route the cables will take? A. Once a preferred cable route option has been planned, a Review of Environmental Factors (REF) will be drafted. The REF investigates the potential environmental impacts associated with the construction, operation and maintenance of the proposal. It identifies key issues raised during the planning stages and outlines the mitigation measures which have been identified to address any impacts and to minimise any issues. The REF also includes specialist assessments. The REF needs to determine that the project would have minimal effect on the environment for the project to be approved for construction. Q. If there are adverse environmental impacts found when the preferred route has been assessed, does Ausgrid then look at other options? A. If adverse environmental impacts were found as a result of this assessment, the project would not proceed until it could be assessed as being not likely to significantly affect the environment. This could include looking at other options.

7h General questions about electric and magnetic fields Q. What is the difference between EMF and *mG on your documentation? A. Electric and magnetic fields (EMF) are part of the natural environment and are present in the earth’s core and the atmosphere. These fields are also produced wherever electricity or electrical equipment is used. Magnetic fields are only present when electric ‘current’ is flowing. The strength of a magnetic field depends on the size of the current. Like electric fields, the strength of magnetic fields drops off quickly as you move away from the source. While electric fields can be shielded, magnetic fields pass through most materials. As electric fields are naturally shielded, the electricity network generally contributes very little to the electrical fields measured inside a home or office building. For this reason most discussion on EMF usually focuses on magnetic fields. A milliGauss (mG) is the unit of measurement for magnetic fields. When we are talking about EMF in this context, we are generally talking about magnetic fields and the mG is the measurement of these fields. Q. Do magnetic fields accumulate? A. Adding magnetic fields from two sources is not a straight forward matter of adding the field strengths. Magnetic fields are vectors and have direction and size. Usually, if two fields come from different sources, the orientation is random and will vary over time. If there are two magnetic fields with random orientation, one field has to be only slightly larger than the other to dominate the average result. For example, if one field is half the size of the other field, it makes only a 10% difference to the total. Therefore, in practice, if we want to know what the field is at a given place, we need usually assess the field from the biggest single source only. Q. What is the acceptable range for magnetic fields? A. In the absence of a current Australian standard, Ausgrid follows the current international (ICNIRP) guideline level of 2000mG. It is important to recognise that the numerical limits are based on established health effects. ICNIRP’s fact sheet on the guidelines notes that: “It is the view of ICNIRP that the currently existing scientific evidence that prolonged exposure to low frequency magnetic fields is causally related with an increased risk of childhood leukaemia is too weak to form the basis for exposure guidelines. Thus, the perception of surface electric charge, the direct stimulation of nerve and muscle tissue and the induction of retinal phosphenes are the only well established adverse effects and serve as the basis for guidance.” Q. Should I be concerned about magnetic fields from high voltage cables and links to childhood leukaemia? A. Ausgrid’s position on EMF has been adopted in the light of authoritative reviews having concluded that no adverse health effects from exposure to EMF have been established, but recognising that there is, within the community, some genuine public concern

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 15 about the issue which must be addressed. A further consideration is also the low levels of magnetic fields modelled for the new cables, which are well within the range normally encountered in everyday life at properties along the cable routes. 7i Electric and magnetic fields (EMF) - project specific questions Q. How high would the magnetic fields be on the Foord Avenue footbridge compared to the existing overhead power lines? A. If the cables are to be installed on the bridge, further planning would be completed on methodology which would then allow Ausgrid to model the magnetic fields in relation to the existing overheard power lines. This would be done as part of the assessment of the project. However it is expected that magnetic fields from the new cables (if installed within the bridge) would be well within international and Australia guidelines. Q. What would the magnetic fields be from the cables if they were installed in this lane way as it is very narrow? A. Independent modelling has found that that the magnetic fields from the proposed new cables would be consistent with the existing environment at all properties. Q. What would the magnetic fields be from the joint bays? A. While magnetic fields are typically higher at joint bays than in other sections, it is still expected that given the setback from the joint bay to property boundaries, the magnetic fields from the proposed new cables would be consistent with the existing environment.

16 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary 8 Ausgrid summary

Ausgrid received thirteen responses with feedback on our plans to replace cables between Earlwood and Summer Hill. All responses were from local residents. All respondents that answered the questions said the presentation was easy to understand and they had enough information to understand why Ausgrid was planning this project and on what to expect during construction.

Community members provided feedback on the presented cable route options as well as some attendees later providing other route options for Ausgrid’s consideration. Attendees at the community sessions and afterwards asked Ausgrid questions about the project as well as general questions about electricity and the construction process.

Feedback included:

• coordinating works with councils • minimising construction impacts • concerns about magnetic fields • considering cyclists • minimising impacts on the Foord Avenue bridge and the laneway • managing the construction process to minimise impacts on the surrounding community including trees and restoration. After considering community feedback (as outlined in this summary) and completing further planning we now have a preferred route that Ausgrid feels best considers all relevant social, environmental, technical, and economic factors.

New electricity cables between Earlwood and Summer Hill | Community sessions feedback summary 17 9 Next steps

Following this process, Ausgrid now has a preferred cable route (route option 2). A community newsletter will be delivered to advise the community of the preferred cable route. Further planning is being done to assess the feasibility of this option which includes site investigations. Ausgrid is starting to prepare an environmental assessment (REF) which will go on public exhibition. At this time there will be the opportunity for the community to make a submission on the entire project. Once all submissions have been considered the project would be assessed and then approved for construction. During construction, Ausgrid and our contractor for the civil component would be required to work under the REF conditions of the project. The construction environmental management plan (CEMP) which sits under the REF would outline the required measures to address any site issues. In addition, during construction, the community engagement team will be on hand and available via the 24 hour community information line (or via email or site visit) to discuss any concerns about the project. Ausgrid encourages community members to contact the project team at any stage of the project to provide feedback, ask for information or if they have any concerns.

18 New electricity cables between Earlwood and Summer Hill| Community sessions feedback summary Electric and magnetic fields – December 2016 Earlwood to Summer Hill cable project

Your feedback Magnetic fields and your street During Ausgrid’s community consultation for the Earlwood Ausgrid models the magnetic fields that would be found to Summer Hill cable project, there was particular interest around the proposed cables once they are in service. from residents of Waterside Crescent about electric and Modelling is generally prepared using time weighted magnetic fields (EMF) from the proposed cables. There was averages of the electrical load under future loading also interest in Foord Avenue Bridge and coordinating works conditions. with Council. Magnetic field modelling assists Ausgrid with route planning, All community feedback has been considered and detailed in in providing information to the community, and as part of the community summary that can be viewed on the project preparing the project’s environmental assessment. web page, see address over the page. Independent modelling by consultant Magshield shows that This newletter provides specifc information on EMF. There the magnetic fields from the proposed new underground is also information about Foord Avenue bridge and working 33,000 volt cables for this project would cause no change to with Council over the page. the existing magnetic fields both standing over the proposed cables (measured at 1 metre height) and at properties along What is EMF the proposed route. Electrical energy involves ‘voltage’, which is the pressure behind the flow of electricity that produces an electric field, The magnetic fields have been calculated using time and ‘current’ is the quantity of electricity flowing that weighted averages on the cables once they are in operation. produces a magnetic field. The modelled magnetic fields are what the Australian Electric fields are naturally occurring and can be present in Government agency ARPANSA identifies as typical any appliance plugged into a power point and switched ‘on’ background levels (01.- 2mG). (however as electric fields are readily shielded they were not modelled for this proposal). More information on EMF Ausgrid can provide more information on magnetic fields Magnetic fields are only present when electric current is generally and in relation to this project. flowing. The strength of a magnetic field depends on the size We can also organise to visit you to take measurements of of the current. Like electric fields, the strength of magnetic existing magnetic fields in and around your home. Ausgrid fields drops off quickly as you move away from the source. has found on similar projects that this can provide some context to the magnetic fields from the proposed cables in relation to the existing environment. Our contact details are over the page.

Our project web page has more information on EMF (see address over the page). Working with Council Foord Avenue bridge It was mentioned by several residents in Waterside Crescent There were concerns from the community relating to EMF as and in other streets along the proposed cable route options well as questions about the structural integrity of the bridge that Ausgrid should coordinate works with councils’ plans. and the timing of work.

We agree that the benefits of working with councils means As already mentioned, modelling of the magnetic fields from that overall impacts on residents can be minimised. the proposed new cables in the Foord Avenue bridge has found that generally that would no change to the existing Ausgrid has started planning with Canterbury Bankstown magnetic field environment under normal conditions. Council on how best to work together to minimise impacts on the community. In Waterside Crescent, Ausgrid and Council In regards to the structural integrity of the bridge, Ausgrid’s plan to work in the road at the same time or in sequence. structural engineers have completed an early assessment and identified that only minor works would be required. Ausgrid is planning to time works so that the final Further assessment will be undertaken to confirm this. reinstatement of affected sections of Waterside Crescent would be completed after all works have finished. Ausgrid will work to minimise impacts while installing conduits (plastic pipes) across the bridge. This will include As we have only recently identified a preferred cable working at times when the bridge is used least and trying to route, discussions with Council have been preliminary but minimise any closures. We will complete further consultation constructive. We will keep you updated as plans progress about the bridge use as part of our project planning. and would look to coordinate similar works with councils on other roads. Foord Avenue path Community feedback identified that another area of interest is the potential crossing of the Cooks River via the Foord Avenue Bridge as well as the path that approaches it.

Modelling of the magnetic fields from the new cables (as mentioned over the page) has found that generally under normal conditions, there would be no change to the existing magnetic fields. This includes the Foord Avenue path.

As with Waterside Crescent, Ausgrid plans to coordinate the proposed activities in the path to the bridge with Council and complete works at the same time.

Contacting us You are welcome to contact us with any enquiries: T 1800 214 193 (free call from fixed phones) E [email protected] W www.ausgrid.com.au/summerhillcanterbury Community Newsletter 3 – May 2017 Earlwood to Summer Hill cable project

A similar cable project in progress

Project update Foord Avenue bridge - Cooks River Ausgrid has chosen a preferred route for the new 33,000 volt Ausgrid plans to cross the river using the existing Foord Avenue underground cables from our substation in Earlwood to the foot bridge. We will consult with the community to better proposed Summer Hill substation. Existing cables of the same understand how and when the bridge is used so that we can plan voltage are nearing the end of their service life and are to be to minimise impacts on bridge users. This consultation will occur replaced so Ausgrid can maintain a reliable electricity supply after the contractor is appointed and before plans are finalised. in the future. If you are interested in providing input, please register your Following several stages of community engagement Ausgrid interest via the contacts on the back page. has decided on a preferred route and an environmental assessment (known as a Review of Environmental Factors or Foord Avenue underpass - Bankstown Line railway REF) has been prepared based on this route. Ausgrid plans to cross the railway line by installing cables in the Foord Avenue underpass roadway. To minimise impacts on You have received this newsletter because you live or work surrounding residents, Ausgrid is coordinating work with Council near the preferred cable route. and installing conduits (plastic pipes) for this project as part of This newsletter provides an update on the project and their planned road upgrade. information on how you can view and make a submission on the environmental assessment. Key dates Community involvement As outlined in our last newsletter, Ausgrid’s preferred route Now was planned with consideration of community feedback. REF on exhibition and submissions received and reviewed Thank you to everyone who provided comments on the route options. A summary of the community feedback is available on Mid to Late 2017 the project webpage - see back page for web address. Target for planning approval Major crossings Mid to Late 2017 As mentioned in the previous newsletter, Ausgrid assessed Target for appointment of options for crossing the Cooks River and Bankstown Line rail construction contractor crossings, including suggestions from the community. Ausgrid found that the following crossings best meet all the factors Late 2017 - End 2019 required to be considered when planning for a cable project. Construction period Earlwood to Summer Hill cable project - preferred cable route

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Ewen t Yeo Substation Park Park Old Canterbury Rd Preferred route Existing bridge HURLSTONE Ross St PARK STATION Wallace Ln LGA boundaries New Canterbury Rd Proposed location of Duntroon St

new Summer Hill Kroombit St Cobar St Dixson Ave zone substation Arlington St Henson St Abergeldie St Wills Ground

James St Rd Gelding St tion stitu Dulwich Hill n Maddock St o C zone substation Community engagement Newsletter timeline 3 – May 2017 Earlwood to Summer Hill cableCURRENT projectSTAGE Before May 2016 May - late 2016 Late 2016 - mid 2017 Mid - late 2017 Late 2017 - end 2019

Prepare route Community input Environmental Project approved Construction options on route options assessment (REF) for construction

Feasibility Community sessions REF prepared on Consult along cable Ongoing investigations. to introduce project preferred cable route. route on planned community and receive input on a works. liaison by Ausgrid Met with Canterbury REF display. range of options. to minimise Council to discuss REF submissions Feedback used by construction water and rail Feedback used by used by Ausgrid to Ausgrid to minimise impacts on the crossings. Ausgrid to refine construction impacts finalise and community. cable route options on the community. Potential route determine REF. and select a preferred options prepared. route.

Project assessment and approval Ask questions Under the NSW Environmental Planning and Assessment Act Members of the project team will be available to discuss 1979, Ausgrid is the consent authority for this project. As part the REF with you, please see details below. of this process, an environmental assessment (REF) has been prepared. Date: Tuesday 6 June 2017

Community feedback on the REF will be considered as part Time: 5pm to 7pm of this process and prior to the project being assessed for Location: Canterbury-Hurlstone Park RSL Club, 20-26 construction approval. Canterbury Road, Hurlstone Park View the environmental assessment No appointment is necessary, just drop in anytime during The REF will be on exhibition from Monday 22 May until these hours. Monday 19 June 2017 and Ausgrid encourages further community comments on the proposal at this stage.

You can submit your feedback via the form on our project Next steps webpage or contact us and we can send you a form. Following the exhibition period, Ausgrid will review and consider all submissions. Ausgrid will then assess the project There are a number of ways you can read the REF: for approval based on information contained in the REF, the In person submissions and other relevant documents.

Printed copies of the REF are available at: Subject to planning approval, construction would start in mid Emanuel Tsardoulias Community Library to late 2017 and be completed by the end of 2019. 362-372 New Canterbury Road, Dulwich Hill You will receive an update after the environmental Ausgrid assessment is complete and a summary of the submissions 570 George Street – available at reception in Bathurst Street will be available on the project webpage. You can also Web contact us to request a copy. www.ausgrid.com.au/summerhillcanterbury Ausgrid encourages your comments and enquiries about the project at any time.

Contacting us You are welcome to contact us with any enquiries: T 1800 604 765 (free call from fixed phones) E [email protected] W www.ausgrid.com.au/summerhillcanterbury

Translating and Interpreting Service: 131 450 Community Newsletter 4 – October 2017 Earlwood to Summer Hill cable project

A similar cable project in progress Project update Foord Avenue bridge Ausgrid and its contractor Diona will soon start laying new Ausgrid identified that to install cables across the Foord underground cables from our substation in Earlwood to the Avenue bridge and approaches, it may be necessary to proposed Summer Hill substation. temporarily close the bridge.

As outlined in our previous newsletters, the project will A survey was conducted to better understand how the bridge replace 33,000 Volt cables that were laid more than 40 years is used in order to plan the work in way which minimises the ago to maintain a reliable supply in the future. impact on bridge users. There was a total of 169 responses and Following several stages of community engagement and a summary is available on the project web page. further planning, Ausgrid has now finalised our plans and the Following this feedback Ausgrid has carried out further project has been approved for construction. planning with the contractor. The proposed bridge Ausgrid is planning for construction to start at the end of construction work is summarised below: October 2017 and be completed by late 2018. Work will be • A full closure for four weeks would be required between done at several locations along the route, however it may be November 2017 and December 2017 to complete the work some time before we begin in your area. quickly and safely. You will receive a letter approximately one week before • Ausgrid will ensure detours are clearly signposted, safe work begins near you which will include information on and accessible. local impacts. • The bike path adjacent to Foord Avenue will remain This newsletter includes a graphic over the page which is accessible during the bridge closure. A minor detour around indicative of the general construction process. There is also the work site will be in place (instead of a longer detour) - information on what to expect during construction. cyclists will be required to dismount in this section.

A map of the cable route as well as more information about • Some tree trimming will be required to access the bridge. the project is available on our web site at This has been addressed in the environmental assessment www.ausgrid.com.au/summerhillcanterbury. and will not cause any permanent damage to the trees or impact the local bush regeneration sites. Your feedback is welcome at anytime throughout the project to • There will be no out of hours work on the bridge, in order to help Ausgrid and our contractors manage potential community minimise impact on surrounding residents. impacts during the construction phase effectively. As planning progresses Ausgrid will consider this feedback in Ausgrid does not plan to interrupt your power supply during order to minimise potential impacts on bridge users as much this work. as possible.

What to expect during construction Major crossings The Foord Avenue bridge crossing will require the bridge to be Below is a summary of the type of activities that can be closed for four weeks as crews work to install conduits (plastic expected during this project. pipes) that will house the cables underneath the bridge and Site investigations on the bridge approaches, as well as associated structural Ausgrid’s contractors have started site investigations to repair work. If you provided feedback during the consultation assess ground conditions and pinpoint existing services such phase for the work on the bridge, we will keep you updated as electricity, gas and water. This will help to confirm the final as construction plans are finalised. Additionally, if you live or position of the new cables in the roadway and the location of work close to the bridge, you will receive more information associated pits. about this work.

Trenching and laying conduits Reinstatement of roads and other areas The most common activity for the project will be digging Restoration of all affected areas to their previous condition is trenches and laying conduits (plastic pipes) to house the typically a two step process. Excavated sections of road will cables. There will be a number of crews doing this work at be refilled immediately and temporarily resurfaced to allow multiple locations. This will start after the site investigations normal use by traffic. Once all of the cables have been installed have been completed. and tested, permanent resurfacing of the affected areas will Joint bays and other associated pits be done in consultation with the Canterbury Bankstown and At intervals along the route there will be extended works to Inner West Council. build underground pits (known as joint bays) to feed in and Construction hours join the sections of cables together. Work will be done between 7am and 6pm on weekdays and There will also be smaller pits associated with controlling between 8am and 1pm on Saturdays. and monitoring the cables, and to assist with cable Night work may be required to cross some major roads, such installation. Some of these pits would be located in the as Old Canterbury Road in Hurlstone Park. Nearby properties nature reserve next to the road. will be notified for work planned outside of normal hours. The project team will discuss the proposed location of the Community feedback joint bays and pits with surrounding neighbours after our Thank you to everyone who has provided feedback, most contractors have prepared their construction plans. recently on the Review of Environmental Factors (REF) which Cable installation was on public exhibition from 22 May to 19 June 2017. A drop After the conduits have been installed, cables will be brought in session was also held on 6 June 2017 to answer questions to the joint bay locations on large cable drums (see photo at about the REF. While Ausgrid received no formal submissions, right). The cables are pulled through the joint bays and into feedback from the community was provided directly to the the conduits. project team as part of the process to finalise the REF. The final REF is on the project web page. Traffic and parking changes Traffic control will be used so that our work is safe for Environmental and health standards drivers, pedestrians and workers on site. Temporary parking Ausgrid plans its infrastructure in line with relevant restrictions will be in place during work and there will be environmental and health standards for the protection of both resident only access in some streets when work is in progress. the environment and the community. This includes designing Access to properties will be maintained unless we make and operating the new cables to minimise electric and alternative arrangements with you in advance. magnetic fields and managing issues such as noise, dust and vibration during construction. The REF has more details on how these impacts have been assessed. Contacting us You are welcome to contact us with any enquiries: Telephone 1800 604 765 (free call from fixed phones) Email [email protected] Web www.ausgrid.com.au/summerhillcanterbury

Interpreter service: 131 450