Western Sydney Aerotropolis stormwater

he Mamre Road Integrated DSP exhibition period will run from Wednesday 8 January 2025 until Thursday 20 February 2025.

The public exhibition gives the community an opportunity to read the document, seek clarification and provide feedback directly to Sydney Water. We updated the Mamre Road DSP to reflect findings from the Independent Pricing and Regulatory Tribunal (IPART) stormwater scheme efficiency review. After the exhibition period, we will finalise the DSP, considering all stakeholder comments, and submit it to IPART for registration.

Further information will be posted when the exhibition period opens.

We hope you can join us to learn more about projects in the Western Sydney Aerotropolis and Mamre Road precincts.

NSW Government agencies, as well as Penrith and Liverpool Council, will be in attendance to provide information and answer questions about developments in the Western Sydney Aerotropolis and Mamre Road precincts.

Event details

Date: 23 November 2024
Time: 10am–1pm
Location: Bringelly Community Centre
Address: 5 Greendale Road, Bringelly
Parking: Available on-site

We're pleased to announce that after extensive consultation we have now published the final Stormwater Developer Works Policy, which applies to the Mamre Road and Aerotropolis Initial Precincts.

The policy provides the mechanism for developers to be reimbursed for stormwater works delivered on behalf of Sydney Water.

The policy has been informed by 2 exhibition periods, and we would like to thank everyone who provided us with valuable feedback during this consultation. Additional issues raised during the recent exhibition are summarised in the Addendum to the Outcomes Report. This should be read in conjunction with the Outcomes Report for a comprehensive overview of consultation outcomes.

We will continue to work on efficiencies in the developer works process, and are committed to regular updates of the policy to incorporate any efficiencies where practical and appropriate.

If you have questions on the policy content or application, email aerostormwater@sydneywater.com.au.

Following public consultation commencing in late 2023 and concluding on 11 January 2024, we have further refined the draft Stormwater Developer Works Policy for the Mamre Road and Aerotropolis Initial Precincts.

The policy stipulates how developers will be reimbursed for the design and construction of regional stormwater infrastructure on behalf of Sydney Water in these precincts.

We know that the details of the policy have the potential to influence the approach to development in these areas. In order to ensure all relevant feedback is captured, we have provided a copy of the Final draft of the policy and Appendix A (Inclusions & Exclusions) We will accept concise and material comments from stakeholders for a period of 2 weeks commencing on 16 September.

Written responses should be sent to aerostormwater@sydneywater.com.au and will be accepted until close of business 30 September 2024. We will review these responses and make appropriate updates before finalising the policy by late October 2024.

Please note: We are finalising the NSW Government approval process for funding of the Mamre Road Stormwater Scheme and are currently in the process of scheme planning and optimisation for the Aerotropolis Initial Precincts.

Once Development Servicing Plans have been registered with IPART for these areas, we can enter into commercial agreements with developers and landowners for the funding of developer-delivered stormwater infrastructure. Consequently, any expenditure by a developer or landowner on stormwater infrastructure prior to finalisation of this approval process remains at their own risk. Until then, we will not take ownership of, nor reimburse costs associated with stormwater infrastructure or servicing. Where works are proposed in advance of this, we are open to discussing arrangements to enable future reimbursement in accordance with the Policy. This may be in the form of a Letter of Intent, as noted in the Policy.

IPART is currently undertaking an independent efficiency review of the Mamre Road Stormwater Scheme. The findings of this review may influence the future content of this policy.

Update on Final Draft Stormwater Developer Works Policy

The consultation period is now closed. We would like to thank all participants for their involvement and appreciate the valuable contributions made during this process.

Next steps

We will consider the relevant matters raised in the feedback received in the finalisation of the Stormwater Developer Works Policy.

As we move forward, we encourage all stakeholders to continue engaging with us throughout the process. We value your input and look forward to working together.

If you have questions, email aerostormwater@sydneywater.com.au.

Following the EOI tendering process, we're excited to publish the Western Sydney Stormwater designers list.

The designers list comprises subject matter experts for the design and delivery of large-scale blue-green infrastructure, including:

• passively irrigated street trees 
• gross pollutant traps (GPTs) 
• naturalised open channels 
• creek rehabilitation and/or reconstruction 
• large-scale wetlands 
• large-scale water harvesting ponds
• bioretention systems 
• pump and recirculation infrastructure 
• other associated drainage infrastructure.  

The designers list is available for developers and landowners to use within the Aerotropolis Initial Precincts, including Mamre Road Precinct.

Expressions of Interest have closed. If you have any questions, reach out to the team at aerostormwater@sydneywater.com.au.

DISCLAIMER

The suppliers on the Western Sydney Stormwater designers list attached have represented to us that they have the experience and qualifications needed to do the types of work listed. We make no guarantees or warranties about their performance, commercial practices or financial viability and do not endorse any of the products or services offered.
We advise you to be diligent in selecting a supplier with the appropriate capability and to obtain a number of quotes to increase your confidence in your decision. 

Competencies of the individuals proposed for the project will be reviewed at the start of the first engagement.

In late 2023, we launched a public consultation on the draft Stormwater Developer Works Policy seeking feedback from the development industry.

The consultation ran over 8 weeks, and included an online survey and a developer briefing session.

We thank the industry for taking the time to provide submissions on the Policy.

This Engagement Outcomes Report provides an overview of the feedback shared during the consultation process and actions to be taken by Sydney Water. This feedback is being used to inform the finalisation of the Policy.

Please note: Sydney Water is nearing finalisation of the NSW Government approval process for funding of the Mamre Road Stormwater scheme. Once approval is granted and the Development Services Plan has been registered with IPART, we can enter into commercial agreements with developers and landowners for the funding of developer-delivered stormwater infrastructure.

Consequently, any expenditure by a developer or landowner on stormwater infrastructure prior to finalisation of this approval process remains at their own risk. Until then, Sydney Water will not take ownership of, nor reimburse costs associated with, unapproved stormwater infrastructure or servicing.

We have reviewed and updated the Mamre Road Precinct Integrated Stormwater Scheme (the scheme plan).

Minor changes have been made to:

1) Including the non-potable water network and associated assets

2) Improving the efficiency of the basins by ensuring the optimal asset depths and layouts

3) Maximising RE1 land within the precinct by reducing Sydney Water asset footprints on RE1 land

4) Reducing the Development Service Plan (DSP) costs by reducing severance risk on key land parcels

The updated scheme plan is in the documents section of this page.

We're pleased to announce that Sydney Water, together with the Aerotropolis Independent Community Commissioner Roberta Ryan, is hosting a community drop-in session from 10am to 1pm on 4 May 2024 at Bringelly Community Centre.

NSW Government agencies, as well as Penrith and Liverpool council, will be in attendance to provide information and answer questions about developments in the Western Sydney Aerotropolis and Mamre Road precincts.

Refer to the invitation flyer for further details and a list of agencies attending.

We look forward to seeing you there.

Based on further technical refinement and planning, including liaison with key stakeholders, please find the following updated documents:

• Mamre Road Precinct Stormwater Scheme Plan – December 2023
• Mamre Road Precinct – Regional Stormwater Scheme Optimisation Summary – December 2023
• Mamre Road Precinct Stormwater Scheme GIS – December 2023 (ZIP File 1.53MB)
• Mamre Road Precinct Stormwater MUSIC models – December 2023 (ZIP File 2.19MB)
• Mamre Road Precinct Stormwater Civil CAD/12D files of key assets – December 2023 (ZIP File 34.6MB)

Updates of the Stormwater Scheme Infrastructure Technical Guidelines, standard drawings, and Mamre Road Precinct Stormwater Scheme Report will be updated/released early in 2024.

We're pleased to advise we have extended the consultation period for the Draft Stormwater Developer Works Policy to allow more time for your review during this busy time of year and provide ample opportunity for your feedback via the survey.

The online feedback survey will now be open until 5pm Thursday 11 January 2024.

As Regional Stormwater Authority, we're committed to enabling the efficient delivery of stormwater infrastructure to service the Mamre Road and Aerotropolis Initial Precincts.

We understand that developers are often best placed to deliver stormwater infrastructure, in parallel to land development, on behalf of Sydney Water. To facilitate this, and to allow for a fair and equitable sharing of costs, Sydney Water has prepared the draft Stormwater Developer Works Policy (draft Policy).

The draft Policy aims to:

• establish a consistent and transparent process that meets Sydney Water’s regulatory standards
• achieve cost-effective and timely delivery of stormwater infrastructure
• work collaboratively with developers to align development needs to stormwater management needs.

Consultation period

We are seeking feedback from the development industry and interested stakeholders to help refine the draft Policy.

The draft Policy can be accessed here from Wednesday 15 November to Thursday 14 December 2023.

You can provide your feedback via this online survey (External link) until 5pm Thursday 14 December 2023

Developer briefing session

Developers and interested stakeholders are invited to an information session to understand more about the draft Policy on Wednesday 29 November 2023.

Event details

Format: In person
Date: Wednesday 29 November 2023
Time: 10:15am registration for a 10:30am start; the briefing will conclude at 12 noon
Location: ParkRoyal Parramatta, 30 Phillip Street, Parramatta
Meeting room: Elizabeth Room

To attend the session, please register via this Attendee registration form.

Thank you to the community members and stakeholders who provided feedback on our draft Mamre Road Scheme Plan and Aerotropolis Stormwater Management Framework.

Based on the feedback we have received as well as further technical studies and planning, we have now finalised the following documents:

• Mamre Road Stormwater Scheme Plan. If you would like to access GIS layers for the trunk stormwater infrastructure click here(ZIP File 1.53mb) 
• Stormwater Management Framework for Aerotropolis and Mamre Road Precincts

We have also prepared a preliminary draft of a Stormwater Scheme Infrastructure Design Guideline:

• Draft Stormwater Scheme Infrastructure Technical Guidelines
• Appendix A – Typical Concept Sketches
• Appendix B – Planting Palette

Mamre Road Precinct Stormwater Scheme Plan

The Stormwater Scheme Plan shows the regional stormwater infrastructure required to service the Mamre Road Precinct and to be managed by Sydney Water.

Stormwater Management Framework for Aerotropolis and Mamre Road Precinct

The Framework proposes guiding principles for Sydney Water, in partnership with local councils, Department of Planning, Housing and Infrastructure, and developers to manage trunk stormwater infrastructure in the Aerotropolis and Mamre Road precincts. The Framework has 3 components:

1. Principles to guide development decisions and stormwater planning
2. Proposed governance for management and delivery of stormwater assets
3. Stormwater planning approvals pathway

Stormwater Scheme Infrastructure Design Guideline

The Design Guideline outlines our design requirements for key elements of the stormwater infrastructure. The Design Guideline is currently in a preliminary draft. We are publishing it prior to it being complete to allow developers and stakeholders the earliest opportunity to incorporate elements of the guideline that have been developed into their projects and planning.

Thank you to the community members and stakeholders who provided feedback on our draft Mamre Road Scheme Plan.

Your insights will inform our updated scheme plan, which will be posted before the end of the 2022.

Here is a summary of the key elements of what we heard from you during our engagement process earlier this year.

Kind regards,
Aerotropolis Stormwater Project Team

The consultation period for the Aerotropolis Stormwater Management Framework and the Mamre Road Draft Scheme Plan has now been extended.

The due date for submissions is now Sunday 31 July 2022.

We welcome feedback via our online survey. This will help us track feedback consistently across our interested stakeholders and ensure we can analyse and consider this feedback effectively while finalising our plans.

Additional content regarding stormwater in Aerotropolis and Mamre Road has also been made available online, including:

• a recording of the developer briefing where the project team explain the thinking behind the development of the plans
• the Mamre Road Flood, Riparian Corridor and Integrated Water Cycle Management Strategy.

A recording of the developer briefing held on Friday 10 June is now available.

The briefing explains how Sydney Water proposes to manage stormwater in the Aerotropolis and Mamre Road precincts. The video also outlines the planning work that is currently on consultation.

View the recording here.

Sydney Water has developed a draft Aerotropolis Stormwater Catchment Framework and a draft Scheme Plan for Mamre Road Precinct.

The Framework and Scheme Plan are both draft, and open to feedback from stakeholders, landowners and the development industry until Sunday 24 July 2022.

The Framework proposes guiding principles for Sydney Water, in partnership with local councils, Department of Planning and Environment, and developers to manage trunk drainage in the Aerotropolis and Mamre Road precincts.

The proposed Framework has 3 components:

1. Draft principles to guide development decisions and stormwater planning
2. Proposed governance for management and delivery of stormwater assets
3. Draft stormwater planning approvals pathway

Also available is the draft Stormwater Catchment Scheme Plan for the Mamre Road Precinct as an example of how the principles will be applied to a particular catchment.

Your feedback

To have your say, please complete this survey. The survey will be open until midnight Sunday 24 July 2022.
If you have any questions, you can email aerostormwater@sydneywater.com.au or call 1800 645 466.

Consultation period

Feedback from the development industry and landowners will help us refine the approach to managing drainage in the Aerotropolis as detailed in the Framework.

The proposed Aerotropolis Stormwater Management Framework and draft Stormwater Catchment Scheme Plan for the Mamre Road Precinct will be on display on Sydney Water Talk until Sunday 24 July 2022. We welcome your feedback during this time.

Information sessions

Developers were invited to a briefing to understand more about the proposed Framework and draft Scheme Plan for Mamre Road. The briefing was held online on Friday 10 June 2022, from 10am to 11:30am. A recording of the briefing session is available here.

Landowners were invited to an in-person community information session that was held at Bringelly Community Centre 5 Greendale Road, Bringelly on Saturday 25 June from 10am to 11:30am.

While we are still in the early stages, we are making progress towards providing more clarity for landowners. Information around land acquisition, however, will not be available until early 2024.

We will soon be exhibiting the Aerotropolis Stormwater Catchment Framework and a draft Scheme Plan for the Mamre Road Precinct.

The Framework proposes guiding principles for Sydney Water, in partnership with local councils, Department of Planning and Environment, and developers to manage trunk drainage in the Aerotropolis and Mamre Road precincts.

Developer and landowner information sessions

Developers are invited to a briefing to understand more about the proposed Framework and draft Scheme. text missing did the briefing here.

Landowners are invited to an in-person community information session to be held at Bringelly Community Centre on Saturday 25 June from 10am to 11:30am. Registration is not required. Come along to hear from the project team about the progress they have made as trunk drainage authority and provide your feedback. While we are still in the early stages, we are making progress towards providing more clarity for landowners. Information around land acquisition, however, will not be available until later in 2023.

Consultation period

Feedback from the development industry and landowners will help us refine the approach to managing drainage in the Aerotropolis as detailed in the Framework.

During the exhibition period, we want to hear your feedback on the proposed Framework and the draft Scheme Plan for Mamre Road. A survey will be available for you to provide your feedback.

The proposed Aerotropolis Stormwater Management Framework and draft scheme plan for Mamre Road will be on display on Sydney Water Talk from Tuesday 7 June to Sunday 24 July 2022. We welcome your feedback during this time.