Refresh Vaucluse and Diamond Bay

Below the cliffs of Vaucluse and Diamond Bay, wastewater flows directly into the ocean untreated.
It’s time for change and we’re continuing to work to ensure this iconic area of Sydney gets the clean, blue backyard it deserves. Under the Refresh Vaucluse Diamond Bay project we are building new infrastructure to divert the flows from the last three remaining ocean outfalls in Sydney to the Bondi Resource Recovery Facility (WRRF).
The project scope includes:
- two new pump stations (one in Parsley Bay and one in Eastern Reserve)
- 3km of new wastewater pipelines
- upgrade existing infrastructure such us vent shafts and manholes
Whilst challenging, we know this is the right thing to do and we need you to get involved as we fix this problem once and for all.
Refreshing the wastewater system in Vaucluse and Diamond Bay offers multiple benefits—improving the harbour and coastal water quality, as well as protecting the health of the community and marine ecology.
In December 2023, Sydney Water appointed Abergeldie Complex Infrastructure (ACI) to partner with us to build the pump station at Parsley Bay as well as the pipeline to the Bondi treatment plant. ACI is an experienced civil engineering company with 25 years’ experience in delivering complex infrastructure projects in the utilities sector. Sydney Water will work closely with the ACI team to make sure construction activities are monitored and managed to the highest standards.
On 5 June 2024, the project team held a traditional Smoking Ceremony to mark the start of the construction of the project and honour the traditional lands of Birrabirragal Country at Parsley Bay.
Below the cliffs of Vaucluse and Diamond Bay, wastewater flows directly into the ocean untreated.
It’s time for change and we’re continuing to work to ensure this iconic area of Sydney gets the clean, blue backyard it deserves. Under the Refresh Vaucluse Diamond Bay project we are building new infrastructure to divert the flows from the last three remaining ocean outfalls in Sydney to the Bondi Resource Recovery Facility (WRRF).
The project scope includes:
- two new pump stations (one in Parsley Bay and one in Eastern Reserve)
- 3km of new wastewater pipelines
- upgrade existing infrastructure such us vent shafts and manholes
Whilst challenging, we know this is the right thing to do and we need you to get involved as we fix this problem once and for all.
Refreshing the wastewater system in Vaucluse and Diamond Bay offers multiple benefits—improving the harbour and coastal water quality, as well as protecting the health of the community and marine ecology.
In December 2023, Sydney Water appointed Abergeldie Complex Infrastructure (ACI) to partner with us to build the pump station at Parsley Bay as well as the pipeline to the Bondi treatment plant. ACI is an experienced civil engineering company with 25 years’ experience in delivering complex infrastructure projects in the utilities sector. Sydney Water will work closely with the ACI team to make sure construction activities are monitored and managed to the highest standards.
On 5 June 2024, the project team held a traditional Smoking Ceremony to mark the start of the construction of the project and honour the traditional lands of Birrabirragal Country at Parsley Bay.
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Community support shining like a diamond
Share Community support shining like a diamond on Facebook Share Community support shining like a diamond on Twitter Share Community support shining like a diamond on Linkedin Email Community support shining like a diamond linkAbout 300 people came to chat and tell us what they think about this project at six information pop-up sessions held in Rose Bay, Parsley Bay and Diamond Bay during November.The events were promoted on Facebook, reaching over 14,000 people in the local area, resulting in over 3,300 visits to this Sydney Water Talk site.For those came to one of our 'pop-up' sessions visit our photo gallery and feel free to share your favourite images via your social networks. -
Two community sessions left
Share Two community sessions left on Facebook Share Two community sessions left on Twitter Share Two community sessions left on Linkedin Email Two community sessions left linkOur pop-up community information sessions are running all this month. Share your ideas with us to help refine the Refresh Vaucluse Diamond Bay project. We have two sessions left, so make sure to come down.Apart from all the latest project news, you can also pick up some free goodies such as Sydney Water shower timers. Join our team between 10am – 1pm at:- Sunday 24 November 2019 - Parsley Bay Reserve – BBQ with Rose Bay Rotary Club
- Saturday 30 November 2019 - Diamond Bay Reserve – BBQ with Rose Bay Rotary Club.
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November community information sessions
Share November community information sessions on Facebook Share November community information sessions on Twitter Share November community information sessions on Linkedin Email November community information sessions linkTell us what you think about the Refresh Vaucluse Diamond Bay project at a pop-up community information session which are being held across the peninsula every weekend this month.Apart from all the latest project news, you can also pick up some free goodies such as Sydney Water shower timers. Join our team between 10am – 1pm at:- Saturday, 9 November 2019 - the Eastern Reserve, Dover Heights (near the Eastern Avenue entrance)
- Sunday 10 November 2019 - Rose Bay North’s shopping precinct (near the supermarket) on Old South Head Road
- Saturday 16 November 2019 - Rose Bay East shopping precinct (near hardware store) Old South Head Road
- Sunday 17 November 2019 - Rose Bay shopping precinct (near Rose Bay Hotel) New South Head Road
- Sunday 24 November 2019 - Parsley Bay Reserve – BBQ with Rose Bay Rotary Club
- Saturday 30 November 2019 - Diamond Bay Reserve – BBQ with Rose Bay Rotary Club.
If you can’t make it to one of these sessions you can always call us on 1800 732 069 or email vauclusediamondbay@sydneywater.com.au to tell us what you think or ask us a question.
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Project Update - September 2019
Share Project Update - September 2019 on Facebook Share Project Update - September 2019 on Twitter Share Project Update - September 2019 on Linkedin Email Project Update - September 2019 linkWe had a great turn out of community representatives from all over the peninsula at our second Community Reference Group (CRG) which was held this year on 21 August 2019 to discuss the next steps of the project’s journey.During the meeting the group discussed options to refine the concept design, as well as activities we’re planning to involve the community to refine the plan for diverting wastewater from Vaucluse and Diamond Bay to the Bondi Treatment Plant.Recently, we distributed a project community update newsletter to residents across the Vaucluse, Dover Heights and Rose Bay area to recap the project’s benefits and seeking for your feedback. If you didn’t receive one the community update can also be found under the ‘Document Library’ on this website.We’re relying on your feedback to help us develop a concept design which will benefit the community, so call 1800 732 069 or email vauclusediamondbay@sydneywater.com.au if you have a question or let us know what you think by registering and posting your comments here.
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Project Update - August 2019
Share Project Update - August 2019 on Facebook Share Project Update - August 2019 on Twitter Share Project Update - August 2019 on Linkedin Email Project Update - August 2019 linkHaving worked with the community to identify a preferred solution to redirect untreated wastewater away from the last three remaining ocean outfalls at Vaucluse and Diamond Bay, this year we’re asking you for help to develop the concept design.
While we’ve already extensively modeled the wastewater system in your area to identify a solution, we still need to do more to better understand the topography, soil and site suitability.
Changing the way wastewater flows in your area means we need to reconfigure existing and new supporting infrastructure like underground pipes and pumping stations. However, recent advances in technology enables us to work with you to refine the concept design to have the least impact on the environment and the community — locating supporting infrastructure underground and using pipes which will be about 30cm in diameter and up to 70m below street level.
Working with you we expect to complete the concept design by the end of this year and following public submissions, complete environmental approvals by March 2020. Construction is then anticipated to start in the latter half of 2020.
Next steps
Throughout this process we will be seeking your views to help us refine the route, appearance, footprint and proposed construction approaches for the new infrastructure.
We’ve already held our first Community Reference Group in June 2019, and in the coming weeks and months we will be letter-boxing and holding local community information sessions, as well as seeking your views through Sydney Water Talk and interactive feedback online tools.
Please subscribe here to receive latest news and details about these information events. If you have any questions or concerns, drop us an email or give us a call. Your feedback is always important to us.
Call 1800 732 069 or email vauclusediamondbay@sydneywater.com.au
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NSW Government's commitment to end ocean outfalls
Share NSW Government's commitment to end ocean outfalls on Facebook Share NSW Government's commitment to end ocean outfalls on Twitter Share NSW Government's commitment to end ocean outfalls on Linkedin Email NSW Government's commitment to end ocean outfalls linkToday the NSW Government announced it will stop the continuous flow of untreated wastewater from three ocean outfalls at Vaucluse and Diamond Bay.
The Refresh Vaucluse Diamond Bay project will now commence detailed work to redirect untreated wastewater away from these outfalls and transfer it to the Bondi Wastewater Treatment Plant.
Refreshing the wastewater system in your area will address the pollution, water quality and public health risks associated with the ocean outfalls and bring your wastewater system up to the same standard as the rest of Sydney.
Sydney Water is very pleased with the support we’ve received from the community to date and we’ll be looking for your continued involvement as we work to fix this long-standing problem.
Our solution
This year we’ve investigated various ways we can treat the wastewater we collect from Watsons Bay, Vaucluse, Diamond Bay, Rose Bay North and parts of Dover Heights.
After a public expression of interest process, we set up a Community Reference Group and over four meetings, we’ve tested our ideas. They’ve given us important input on what the community values and loves about the area.
With this information, we’ve chosen to connect the ocean outfalls to a large wastewater pipe that runs along Old South Head Road. This pipe has capacity and it’s the easiest way to get the wastewater that currently flows directly into the ocean to a treatment plant.
What’s next
Next year will be an important one for this project.
There’s a lot involved in planning an infrastructure project of this scale and local knowledge can help identify local solutions to local challenges. That’s why we’ll continue to involve the community as we come up with a design, seek environmental approvals and secure funding.
Once these approvals are secured, Sydney Water can commence construction in 2020 and this legacy issue with become history.
Let’s keep talking
Whilst we still don’t have all the answers, it’s important we keep talking.
Your feedback is important to us.
Call 1800 645 466 or email vauclusedaimondbay@sydneywater.com.au
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Project update - June 2018
Share Project update - June 2018 on Facebook Share Project update - June 2018 on Twitter Share Project update - June 2018 on Linkedin Email Project update - June 2018 linkCommunity Reference Group Meeting #1
Our Community Reference Group (CRG) had its first meeting on Tuesday 29 May. It was a great opportunity for our team to meet community representatives from across the peninsula and to share the purpose of the group:
· “To enable Sydney Water to better understand community expectations for the Vaucluse and Diamond Bay Ocean Outfalls so that community values can be included in the decision-making for the long-term solution”
The meeting helped to set the scene - the background to this project, the findings of Sydney Water’s recent pollution study and how Sydney Water and the CRG will work together to review and refine possible solutions.
Key points raised during the meeting:
Drivers for the project
- The pollution study found there was a very high risk to public health and high risk to the environment from the outfalls, which is unacceptable to Sydney Water.
- Sydney Water has an opportunity to fix this ongoing problem of the outfalls.
- Many in the community would be surprised to hear that the wastewater from the ocean outfalls is untreated – they would strongly support Sydney Water moving ahead with a solution.
- Nearby swimming beaches have good water quality for swimming and Sydney Water is monitoring water quality near the outfalls.
How we find a solution
- The solution needs to minimise impacts to the community and be affordable.
- The cost/benefit of options will be a key factor for discussion during our second meeting.
- The review of options needs to consider community values across the whole project area – from Watsons Bay, Vaucluse to Dover Heights and Rose Bay North.
- Solutions need to be assessed based on a range of factors including local/wider community benefit, public health, aesthetics, community and other stakeholder support, environmental improvement, cost to Sydney Water’s customers, community disturbance in construction and operation, future needs, best practice and learnings from other projects, new technologies and financial responsibility.
Community engagement
- The whole community needs to get involved and understand why this project is needed
- CRG members will discuss what they’ve learnt with their groups, neighbours and friends and encourage involvement in the discussions
Community Reference Group Meeting #2
The CRG will meet again on Tuesday 3 July to give feedback on a range of potential solutions. We will summarise the outcomes of that meeting here on Sydney Water Talk.
We will share details and seek feedback from the wider community about feasible options later in July. Look out for a project update in your letterbox or check Sydney Water Talk in July for more details.
Tell us what you think
It's not too late to let us know what you value about life on the peninsula. Information gathered through our online poll and issues mapping tool will help our team and the CRG understand community values when assessing the initial long list of possible solutions.
Community Reference Group Membership
Our CRG members:
- Allan Aaron, Vaucluse resident and convener of the Vaucluse / Diamond Bay Precinct Committee
- Bruce Bland, Rose Bay resident and Vice President of Rose Bay Residents Association
- Tony Booth, Vaucluse resident and member of Vaucluse Progress Association
- Peter Cappe, Dover Heights resident and member of the Dover Heights Precinct Committee
- Dov Frazer, Dover Heights resident, convener of the Dover Heights Precinct Committee and member of the Bondi Wastewater Treatment Plant Community Consultative Committee
- Leon Goltsman, Vaucluse resident and Waverley Councillor for Bondi Ward
- Ron Nothman, Dover Heights resident and member of the Dover Heights Precinct Committee
- Terry Pullinger, Vaucluse resident
- Peter Quartly, North Bondi resident and convenor of the North Bondi Precinct Committee and member of the Bondi Wastewater Treatment Plant Community Consultative Committee
- Bruce Thom, Vaucluse resident and Chair of NSW Coastal Council
- Susan Wynne, Vaucluse resident and Deputy Mayor of Woollahra Council (Vaucluse Ward)
- Bob Steele, Vaucluse resident
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Community Reference Group
Share Community Reference Group on Facebook Share Community Reference Group on Twitter Share Community Reference Group on Linkedin Email Community Reference Group linkCLOSED: This discussion has concluded.The wastewater system on the South Head Peninsula is different from the rest of Sydney. It's the only system that doesn't treat wastewater before it gets discharged back into the ocean. It's also the last system of its kind in NSW and it's about time we did something about it.
Fixing it won't be easy, it's a complex system.
That's why we need to work together to come up with a solution that minimises impact on the community, maximises environmental benefits and is affordable. We’re forming a Community Reference Group (CRG) to help us understand what the local community thinks as we plan how we'll improve the wastewater system on the South Head Peninsula and bring it up to the same standard enjoyed by the rest of Sydney.
If this sounds like something you'd be interested in joining, email us at vauclusediamondbay@sydneywater.com.au for an information pack. We look forward to hearing from you.
Who's Listening
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Community Engagement Team
Phone 1800 641 349 Email vauclusediamondbay@sydneywater.com.au
Notifications
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Parsley Road site investigations April 2025 (337 KB) (pdf)
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Carlisle St Rose Bay Works Notification March 2025 (220 KB) (pdf)
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Carlisle St, Rose Bay upcoming potholing work in January 2025 (362 KB) (pdf)
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Start of Construction Work at Caretaker's Cottage October 2024.pdf (229 KB) (pdf)
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Vegetation clearing August 2024 (361 KB) (pdf)
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Diamond Bay info session invite.pdf (193 KB) (pdf)
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Parsley Bay Community Pop In - March 2025 (452 KB) (pptx)
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Diamond Bay upcoming works notification March 2025 (243 KB) (pdf)
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Construction activities and traffic changes in Hopetoun Avenue_ 2025 (408 KB) (pdf)
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Work in Parsley Bay Jan 2025.pdf (373 KB) (pdf)
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Demolition of Parsley Bay amenities September 2024 (280 KB) (pdf)
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Investigation work on Carlisle St September 2024 (313 KB) (pdf)
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Construction Schedule May 2024 (56.2 KB) (pptx)
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Closure of Parsley Bay car park and Horler Avenue May 2024 (310 KB) (pdf)
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Parsley Bay Start of work notification May 2024 (130 KB) (pdf)
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Dudley Page Reserve community update March 2023 (197 KB) (pdf)
Newsletters
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Newsletter_August 2024.pdf (2.74 MB) (pdf)
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Newsletter- February 2024 (1.99 MB) (pdf)
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Previous Newsletters
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Newsletter - October 2023 (3.02 MB) (pdf)
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Newsletter- December 2022 (1.04 MB) (pdf)
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Newsletter- April 2022 (3.43 MB) (pdf)
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New amenities in Parsley Bay - December 2021 (1.01 MB) (pdf)
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New amenities in Parsley Bay - September 2021 (2.55 MB) (pdf)
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Newsletter Parsley Bay - March 2021 (603 KB) (pdf)
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Newsletter June 2020 (1.03 MB) (pdf)
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Newsletter - December 2019 (560 KB) (pdf)
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Newsletter - August 2019 (214 KB) (pdf)
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Newsletter- August 2018 (1.45 MB) (pdf)
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Newsletter - April 2018 (1 MB) (pdf)
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Related Documents
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Diamond Bay 50 per cent design- presented at Community Info Session 12 April 2025 (9.89 MB) (pdf)
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RVDB Stage 2 Carlisle Street - detour map (829 KB) (pdf)
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Construction Environmental Management Plan (47.3 KB) (PNG)
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Review of Environmental Factors Addendum and Ecologist Report- May 2024 (3.1 MB) (pdf)
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Community Consultation Outcomes Report- 50% Detailed Design - September 2022 (26.4 MB) (pdf)
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REF Decision Report - December 2020 (7.63 MB) (pdf)
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Review of Environmental Factors - June 2020
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Review of Environmental Factors - Report + Appendix A&B (4.57 MB) (pdf)
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Appendix C - Flora and Fauna Assessment (Arborist) (4.88 MB) (pdf)
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Appendix C - Flora and Fauna Assessment (Biodiversity) (16.7 MB) (pdf)
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Appendix C - Flora and Fauna Assessment (Marine) (4.99 MB) (pdf)
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Appendix D - Statement of Heritage Impact (11.7 MB) (pdf)
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Appendix E - Noise and Vibration Assessment (45.5 MB) (pdf)
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Appendix F - Traffic Impact Assessment (5.35 MB) (pdf)
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Archive
FAQs
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Project overview
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Parsley Bay
- What are we delivering in Parsley Bay?
- What other options were considered?
- Why was Parsley Bay selected for the new pump station location?
- What will the new pump station look like?
- How does the pump station work?
- How did you assess the project?
- How will the local environment be protected?
- Will there be any construction work in the marine area?
- How many trees will be removed in Parsley Bay?
- Will Sydney Water replace any trees and vegetation that are removed during the project?
- Will removing vegetation impact my privacy?
- Are the current wastewater overflows being fixed?
- What will happen to the amenities block in Parsley Bay?
- When will construction start on the new amenities block at Parsley Bay?
- Will there be access to the Kiosk area during construction?
- Will there be a loss of car spaces at Parsley Bay carpark?
- How will construction be managed?
- Will I be able to access the Parsley Bay swimming and recreational areas during construction?
- What are the next steps on the project?
- What will happen to the stormwater during the project?
- Is this project related to works at Neilsen Park?
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Eastern Reserve
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Community Engagement
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Construction approach
- What construction techniques will you be using for the pipelines?
- How will construction be managed?
- Is there a risk management strategy for the project?
- How will hazardous materials like asbestos be managed, if they are located onsite?
- What are the conditions upon which the project will have to stop work?
- Does Sydney Water have a management and compliance process in place to manage its sub-contractors?
- Will there be increased truck movements and road closures?
- What measures are in place to prevent sedimentation and water releases in the creek and harbour?
- Will the new infrastructure cause odour issues?
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Site office, Dover Heights
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Preserving the environment
- What is the solution for preventing sediment such a silica dust entering the freshwater creek when the old toilet block is demolished?
- Will the boulders be preserved in the Reserve?
- What is the plan to stop toxic soil or other contaminants from entering the ocean?
- What is the bush regeneration plan for the Reserve after construction is completed?
- What is the timeframe for bush regeneration to occur?
- Is there any monitoring proposed for introduced artificial hollows and nest boxes for use by target species in the Reserve?
- Have you identified micro-bat roosting areas?
- Have the project ecologist inspected rocky areas on the site for possible fauna habitat?
- Has WIRES been contacted to provide support for injured native animals, corridors and signage if required?
- What impact will construction work have on Powerful Owl habitat and population numbers?
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Property Condition Surveys
- What is a property condition survey?
- Why are property condition surveys begin carried out?
- What will the property condition survey involve?
- How are properties identified as eligible for a property condition survey?
- When can I book a property condition survey for my property?
- Who will carry out the property condition survey at my property?
- Why haven't I been offered a property condition survey?