Austral Leppington Wastewater Stage 3

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Sydney Water, alongside the Department of Planning and Environment, Councils and other utility providers are planning and building the Austral Leppington Wastewater Stage 3 project. The project will provide safe and reliable drinking water and wastewater to service growth in the Austral and Leppington precincts.

The project includes the construction and operation of:

• new wastewater pumping station along Gurner Avenue

• permanent access road within the pumping station

• 1.7 kilometres of a new wastewater pressure main

• 6.9 kilometres of trunk wastewater mains

• 1.7 kilometres of wastewater lead-ins

• 3.6 kilometres of trunk water mains along Kelly Street, Tenth Avenue and Edmondson Avenue

• maintenance holes and vent shafts

Our delivery partner, the West Region Delivery Team, has commenced construction of Stage 3 Phase 1. Phase 1 is an interim delivery solution providing wastewater infrastructure to service up to 1,700 lots located at Austral and Leppington.

Phase 2 servicing is linked with the construction of the Upper South Creek Advanced Water Recycling Centre, due for completion in 2025. Final wastewater infrastructure for the entire catchment is expected to be in place from the end of 2026, with ultimate servicing of 37,000 dwellings expected by 2056..

Sydney Water, alongside the Department of Planning and Environment, Councils and other utility providers are planning and building the Austral Leppington Wastewater Stage 3 project. The project will provide safe and reliable drinking water and wastewater to service growth in the Austral and Leppington precincts.

The project includes the construction and operation of:

• new wastewater pumping station along Gurner Avenue

• permanent access road within the pumping station

• 1.7 kilometres of a new wastewater pressure main

• 6.9 kilometres of trunk wastewater mains

• 1.7 kilometres of wastewater lead-ins

• 3.6 kilometres of trunk water mains along Kelly Street, Tenth Avenue and Edmondson Avenue

• maintenance holes and vent shafts

Our delivery partner, the West Region Delivery Team, has commenced construction of Stage 3 Phase 1. Phase 1 is an interim delivery solution providing wastewater infrastructure to service up to 1,700 lots located at Austral and Leppington.

Phase 2 servicing is linked with the construction of the Upper South Creek Advanced Water Recycling Centre, due for completion in 2025. Final wastewater infrastructure for the entire catchment is expected to be in place from the end of 2026, with ultimate servicing of 37,000 dwellings expected by 2056..

  • Mid-year progress update: Austral and Leppington

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    The first half of 2022 has been full of challenging weather conditions for the Austral Leppington Wastewater Stage 3 project team. Despite this, we are fast approaching the end of our enabling works phase, during which we have:

    • Built two site compounds that will support main works by providing storage facilities, site offices and a Community Information Hub
    • Cleared vegetation to enable construction
    • Established access roads for the next phase of construction
    • Completed extensive surveying of the project area.

    In the coming weeks, we will start our main construction work to deliver safe and reliable wastewater services to residents across Austral and Leppington. During this time, you may notice some of the following construction activity happening in your area:

    • piling and excavation work to construct a new wastewater pumping station and new manholes along Gurner Avenue, Austral
    • construction of a permanent access road within the pumping station compound
    • construction of a temporary pumping station
    • setting up a second site compound at 390 Fourth Avenue, Austral
    • boring of new wastewater mains, trunk mains and wastewater lead-ins
    • installation of watermain along Kelly Street, Edmondson Ave & Tenth Ave

    However, the one thing you may notice the most is the delivery of 28 large diameter wastewater pipes that will soon be delivered to site.

    So, keep an eye out for this in the coming weeks and be mindful to follow the directions of our traffic controllers as your safety is our highest priority!

    Image: Installing temporary drainage pipes for a landowner in Austral

  • New water and wastewater services in Austral and Leppington

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    supporting image

    Sydney Water is building water and wastewater infrastructure in Austral and Leppington to service Western Sydney’s growing population. We conducted site investigations to identify key service points and contact impacted residents as required.

    Construction works have now commenced and we anticipate services to be available for this first phase by the end of Q1 of calendar year 2023, weather permitting

    Works include:

    • vegetation clearing and spoil removal

    • Construction of:

    • Temporary compound to store site sheds, machinery and materials

    • New wastewater pumping station along Gurner Avenue

    • Permanent access road within the pumping station

    • 1.7 kilometres of a new wastewater pressure main

    • 6.9 kilometres of trunk wastewater mains

    • 1.7 kilometres of wastewater lead-ins

    • 3.6 kilometres of trunk water mains along Kelly Street, Tenth Avenue and Edmondson Avenue

    • Maintenance holes and vent shafts within private properties

    • Remediation of impacted construction areas

    Work hours

    Our construction work hours for this project are:

    • Monday to Friday: 7 am to 6 pm

    • Saturday 8 am to 1 pm (if required)

    Some out of hours work will be required and impacted residents will be notified in advance of work starting.

    Parking and traffic management

    You may experience additional traffic and heavy truck movements as we complete our work. To ensure the safety of our workers and the local community, traffic control will be in place. Safety barriers will be located on the roadside. Access to driveways will be maintained, and any disruptions will be communicated with impacted residents in advance.

    We appreciate your cooperation and understanding while we complete this essential work.

    COVID-19

    Sydney Water provides essential services and we are continuing our work to ensure everything works the way it should. While working in your area we will follow strict health and safety requirements in response to the current COVID- 19 situation. We appreciate the uncertainty and hardship felt by communities during COVID-19 and the additional pressures our work can cause. We will plan our work to limit the impact where possible.

    Map of water and wastewater alignment

  • Austral Leppington Update

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    Good afternoon all,

    Following our update in October regarding the servicing of Austral Leppington, we are pleased to advise you that we have worked through the available options

    and confirmed the servicing solution for up to 1,700 lots.

    At this point, subject to approvals, we anticipate delivery of the interim phase one wastewater infrastructure in Q1 of calendar year 2023.

    We remain committed to providing you with further information as it becomes available.

    I hope you have a safe and enjoyable festive break and I look forward to providing further updates in the New Year.

    Kind regards,

    Chris Gantt

    Head of Business

    City Growth & Development

    Business Development I Sydney Water

  • Review of servicing and procurement strategy

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    The ‘interim’ phase 1 delivery of wastewater infrastructure to service up to 1,700 lots at Austral-Leppington will be delivered later then anticipated.

    We received tendered costs for phase 1 that are materially higher than original estimates.

    A number of factors have contributed to the cost disparity including the evolution of the design, complexity of construction logistics, compressed timeframes, environmental and heritage constraints and cost rates for deep sewer sections and maintenance holes.

    The increased costs have implications for both phase 1 and phase 2 servicing costs.

    We are working through the options to make a final decision on the delivery pathway to confirm proposed delivery programming.

    We have provided an update to stakeholders and have collected an array of questions that we will answer and post in the frequently asked questions (FAQs) on this page in the near future.

    If you were not able to attend our October 2021 Developer Update please find our presentation in the top right hand corner of the project page under documents or click here.

  • Lockdown Shutdown

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    In line with recent developments regarding NSW COVID-19 restrictions that prohibit all non-essential construction to be halted until 30 July 2021, all planned investigative works planned for July and August 2021 have been put on hold and will recommence once further updates from the NSW State Government have been provided.

    Once these works are due to start again, a community update will be provided.

  • Community Update

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    Thanks to everyone who attended our latest online community information session on Thursday 25 March. If you missed out you can listen to a recording of the session.

    Please email us at australwastewater@sydneywater.com.au if you have any further questions.

  • Online Community Information Session

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    We’re hosting an online community information sessions at 1 pm on Thursday 25 March 2021.

    Please email us to register for a session: australwastewater@sydneywater.com.au


Page published: 28 Jul 2022, 02:20 PM