Western Sydney Aerotropolis Stormwater

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Public exhibition now open - The Mamre Road Integrated Stormwater Development Servicing Plan (DSP)

The public exhibition period will run from Wednesday 8 January 2025 until Thursday 20 February 2025 and provides the community an opportunity to read the document, seek clarification and provide feedback directly to Sydney Water.

In-person event where we will be discussing the Integrated Stormwater Development Servicing Plan (DSP) for the Mamre Road precinct.


Date: Friday 7 February 2025
Time: 8.45 am – 11.00 am
Venue: Sydney Water Office – 1 Smith Street Parramatta.


This is a great opportunity to learn more about how we are managing stormwater in the area and what it means for the community. There will be an introduction to the Sydney Water project team and an opportunity to ask questions about the DSP. This might help you if you are planning to before submitting a written response.


Sydney Water panel:

Paul Higham - Head of Business Development
Phillip Birtles - Integrated Water Cycle Manager
Kate Beatty - Senior Analyst
Madeline Rincheval - Commercial Projects Manager

This is a registered event - to book your spot please CLICK HERE.

Feedback on the document can be submitted via email to aerostormwater@sydneywater.com.au no later than Thursday 20 February 2025.

Please click here to access the documents.

For support on how to make a submission please email aerostormwater@sydneywater.com.au.

~~~~~~

On 25 March 2022, the NSW Government announced the appointment of Sydney Water as the trunk drainage authority for stormwater in the Western Sydney Aerotropolis, including the Mamre Road Precinct. This means, Sydney Water is responsible for delivering, managing and maintaining the regional stormwater network along with the drinking water, wastewater and recycled water networks.

The entire Western Sydney Aerotropolis (Aerotropolis) is an 11,200-hectare area surrounding the Western Sydney International Airport and is a part of the Wianamatta South Creek catchment. The Aerotropolis will be made up of 10 precincts, with plan for delivery for 6 initial precincts, including the Mamre Rd precinct currently underway.

To support the vision for a restored and protected Wianamatta South Creek catchment that nourishes a cool, green and liveable Western Parkland City, our stormwater approach for the Aerotropolis will be delivered using a new model called integrated water cycle management (IWCM).

IWCM is an alternative approach to traditional water servicing where stormwater flows into natural water channels and wetlands instead of relying on buried concrete pipes or drains. Stormwater is then collected in wetlands for harvesting, treatment and reuse as recycled water for irrigation of parks and flushing of toilets.

Other benefits include:

  • creating healthier, more sustainable waterways

  • fostering water resilience

  • providing more open green space

  • reducing urban heat

  • lowering air pollution

  • visual benefits by using a natural and non-intrusive designs.

IWCM will help to create an overall cooler and greener, Western Parkland City and healthier Wianamatta South Creek catchment.

Integration of Stormwater and Recycled Water

The Aerotropolis integrated water system will be the largest stormwater harvesting scheme in Australia and will be delivered gradually over the next 10-20 years in alignment with the predicted completion of the precincts. Planning for the initial precincts is currently underway, including the Mamre Rd Precinct.

We will update this page as planning progresses.

If you have any questions, please contact the Community Engagement Team via aerostormwater@sydneywater.com.au.

Public exhibition now open - The Mamre Road Integrated Stormwater Development Servicing Plan (DSP)

The public exhibition period will run from Wednesday 8 January 2025 until Thursday 20 February 2025 and provides the community an opportunity to read the document, seek clarification and provide feedback directly to Sydney Water.

In-person event where we will be discussing the Integrated Stormwater Development Servicing Plan (DSP) for the Mamre Road precinct.


Date: Friday 7 February 2025
Time: 8.45 am – 11.00 am
Venue: Sydney Water Office – 1 Smith Street Parramatta.


This is a great opportunity to learn more about how we are managing stormwater in the area and what it means for the community. There will be an introduction to the Sydney Water project team and an opportunity to ask questions about the DSP. This might help you if you are planning to before submitting a written response.


Sydney Water panel:

Paul Higham - Head of Business Development
Phillip Birtles - Integrated Water Cycle Manager
Kate Beatty - Senior Analyst
Madeline Rincheval - Commercial Projects Manager

This is a registered event - to book your spot please CLICK HERE.

Feedback on the document can be submitted via email to aerostormwater@sydneywater.com.au no later than Thursday 20 February 2025.

Please click here to access the documents.

For support on how to make a submission please email aerostormwater@sydneywater.com.au.

~~~~~~

On 25 March 2022, the NSW Government announced the appointment of Sydney Water as the trunk drainage authority for stormwater in the Western Sydney Aerotropolis, including the Mamre Road Precinct. This means, Sydney Water is responsible for delivering, managing and maintaining the regional stormwater network along with the drinking water, wastewater and recycled water networks.

The entire Western Sydney Aerotropolis (Aerotropolis) is an 11,200-hectare area surrounding the Western Sydney International Airport and is a part of the Wianamatta South Creek catchment. The Aerotropolis will be made up of 10 precincts, with plan for delivery for 6 initial precincts, including the Mamre Rd precinct currently underway.

To support the vision for a restored and protected Wianamatta South Creek catchment that nourishes a cool, green and liveable Western Parkland City, our stormwater approach for the Aerotropolis will be delivered using a new model called integrated water cycle management (IWCM).

IWCM is an alternative approach to traditional water servicing where stormwater flows into natural water channels and wetlands instead of relying on buried concrete pipes or drains. Stormwater is then collected in wetlands for harvesting, treatment and reuse as recycled water for irrigation of parks and flushing of toilets.

Other benefits include:

  • creating healthier, more sustainable waterways

  • fostering water resilience

  • providing more open green space

  • reducing urban heat

  • lowering air pollution

  • visual benefits by using a natural and non-intrusive designs.

IWCM will help to create an overall cooler and greener, Western Parkland City and healthier Wianamatta South Creek catchment.

Integration of Stormwater and Recycled Water

The Aerotropolis integrated water system will be the largest stormwater harvesting scheme in Australia and will be delivered gradually over the next 10-20 years in alignment with the predicted completion of the precincts. Planning for the initial precincts is currently underway, including the Mamre Rd Precinct.

We will update this page as planning progresses.

If you have any questions, please contact the Community Engagement Team via aerostormwater@sydneywater.com.au.

  • Public exhibition now open - The Mamre Road Integrated Stormwater Development Servicing Plan (DSP)

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    The public exhibition period will run from Wednesday 8 January 2025 until Thursday 20 February 2025 and provides the community an opportunity to read the document, seek clarification and provide feedback directly to Sydney Water.

    Please click here to access the documents.

    Feedback on the document can be submitted via email to aerostormwater@sydneywater.com.au no later than Thursday 20 February 2025.

    Sydney Water will consider all written submissions as part of the process of the DSP being registered with IPART. We will not publish individual submissions however, we will provide a ‘what we heard’ summary report on our website and provide a copy of all submissions to our regulator, IPART when we submit the finalised DSP for registration. Sydney Water may also use information gathered (with identifying information removed) in development of future documents to inform other government agencies and/or IPART.

    If you need any support on how to make a submission, please email the team at aerostormwater@sydneywater.com.au.

  • Upcoming public exhibition period for Mamre Road Integrated Stormwater Development Servicing Plan (DSP)

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    The Mamre Road Integrated Stormwater Development Servicing Plan (DSP) exhibition period will start on Wednesday 8 January 2025 until Thursday 20 February 2025.

    The public exhibition provides the community an opportunity to read the document, seek clarification and provide feedback directly to Sydney Water. The Mamre Road DSP was updated by Sydney Water to reflect findings from the Independent Pricing and Regulatory Tribunal’s (IPART) stormwater scheme efficiency review. After the exhibition period, Sydney Water 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.

  • Aerotropolis and Mamre Road Precincts Community Information Drop-in Session

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

    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: 10:00am – 1:00pm


    Location: Bringelly Community Centre

    Address: 5 Greendale Road, Bringelly

    Parking: Available on site


    More information can be found here

  • Finalisation of Stormwater Developer Works Policy

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    We are pleased to announce that after extensive consultation, Sydney Water has 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 two 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

    Sydney Water 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.

    For any questions on the policy content or application, please email aerostormwater@sydneywater.com.au.


  • Final Draft Stormwater Developer Works Policy – Mamre Road and Aerotropolis Initial Precincts

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    Following public consultation commencing in late 2023 and concluding on 11 January 2024 Sydney Water has 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 two 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:

    Sydney Water is finalising the NSW Government approval process for funding of the Mamre Road Stormwater Scheme and is 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, Sydney Water can enter into commercial agreements with developers and landowners for the funding of developer delivered stormwater infrastructure. Consequently, any expenditure by a developer / 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 stormwater infrastructure or servicing. Where works are proposed in advance of this, Sydney Water is 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 any questions, please feel free to reach out at aerostormwater@sydneywater.com.au.

  • Western Sydney Stormwater designers list 

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    Following the EOI tendering process, Sydney Water is excited to publish the Western Sydney Stormwater Designers list. The Designers list comprises of 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 re-circulation infrastructure

    • Other associated drainage infrastructure.  


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

    Expressions of Interest have closed. Should you have any questions please 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, and 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 commencement of the first engagement.

  • Draft Stormwater Developer Works Policy - Engagement Outcomes Report Released

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    In late 2023, Sydney Water launched a public consultation on the draft Stormwater Developer Works Policy, seeking feedback from the development industry. The consultation ran over eight weeks, and included and 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, Sydney Water can enter into commercial agreements with developers and landowners for the funding of developer delivered stormwater infrastructure. Consequently, any expenditure by a developer / 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.

  • Updated: Mamre Rd Precinct Stormwater Scheme Plan

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    Sydney Water 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 can be viewed on the Sydney Water website https://www.sydneywater.com.au/plumbing-building-developing/developing/land-development/aerotropolis-stormwater-development-requirements.html and in the related documents section of this page.

  • Community Information Session 4 May 2024 - Aerotropolis and Mamre Rd Precincts

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    We are pleased to announce Sydney Water, together with the Aerotropolis Independent Community Commissioner Roberta Ryan, is hosting a community drop-in session between 10:00am to 1:00pm 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.

    Please refer to the attached invitation flyer for further details and a list of agencies attending.

    We look forward to seeing you there.

  • Mamre Road Stormwater Scheme Plan December 2023 and associated documents

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

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


Page last updated: 24 Jan 2025, 10:08 AM