Kemps Creek Dual Pressure Mains

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Sydney Water is investing in infrastructure to support the future population and economic growth of Western Sydney. This includes the construction of 6.8km of dual wastewater pipes (known as pressure mains) from the sewage pumping station being constructed at Gurner Avenue, Austral to the Upper South Creek Advanced Water Recycling Centre (AWRC) being constructed at Kemps Creek.

The Kemps Creek Dual Pressure Mains (KCPM) project will improve wastewater services in the South West Growth Area (SWGA), one of the NSW State Government’s three designated growth areas in South West Sydney. This area will see substantial growth over the coming years, increasing from 2,300 dwellings in 2022 to approximately 38,000 dwellings by 2056.

It will do this by transferring wastewater that is collected from homes and businesses in Austral, Leppington North, parts of Leppington, parts of Catherine Fields North, Rossmore, and Kemps Creek (known as the Kemps Creek catchment area) to the AWRC to be treated there.

The AWRC is Sydney Water’s largest infrastructure investment in Western Sydney. It will be a sophisticated wastewater treatment and resource recovery centre that will produce recycled water, renewable energy and bio-resources. It will use reverse osmosis - the same technology used by the desalination plant - to treat water to a high-quality.

When completed in early 2026, the AWRC and associated pipelines will deliver sustainable wastewater services and high-quality recycled water to support a cooler, greener Western Parkland City.

Key benefits for the local community include:

  • efficient and cost-effective wastewater services
  • high-quality, recycled water for a range of non-drinking reuses
  • protecting waterway health and aquatic ecosystems via environmental flows
  • enhanced biodiversity by greening Western Sydney with recycled water
  • energy generation from recycled organic waste and solar
  • biosolids for use as fertilisers in agriculture.

You can read more about the AWRC at its project webpage.

Sydney Water is investing in infrastructure to support the future population and economic growth of Western Sydney. This includes the construction of 6.8km of dual wastewater pipes (known as pressure mains) from the sewage pumping station being constructed at Gurner Avenue, Austral to the Upper South Creek Advanced Water Recycling Centre (AWRC) being constructed at Kemps Creek.

The Kemps Creek Dual Pressure Mains (KCPM) project will improve wastewater services in the South West Growth Area (SWGA), one of the NSW State Government’s three designated growth areas in South West Sydney. This area will see substantial growth over the coming years, increasing from 2,300 dwellings in 2022 to approximately 38,000 dwellings by 2056.

It will do this by transferring wastewater that is collected from homes and businesses in Austral, Leppington North, parts of Leppington, parts of Catherine Fields North, Rossmore, and Kemps Creek (known as the Kemps Creek catchment area) to the AWRC to be treated there.

The AWRC is Sydney Water’s largest infrastructure investment in Western Sydney. It will be a sophisticated wastewater treatment and resource recovery centre that will produce recycled water, renewable energy and bio-resources. It will use reverse osmosis - the same technology used by the desalination plant - to treat water to a high-quality.

When completed in early 2026, the AWRC and associated pipelines will deliver sustainable wastewater services and high-quality recycled water to support a cooler, greener Western Parkland City.

Key benefits for the local community include:

  • efficient and cost-effective wastewater services
  • high-quality, recycled water for a range of non-drinking reuses
  • protecting waterway health and aquatic ecosystems via environmental flows
  • enhanced biodiversity by greening Western Sydney with recycled water
  • energy generation from recycled organic waste and solar
  • biosolids for use as fertilisers in agriculture.

You can read more about the AWRC at its project webpage.

  • We’ve started work on the Kemps Creek Dual Pressure Mains

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    Sydney Water together with our delivery partner Quickway, have installed our first wastewater main within the M12 corridor.

    This achievement is due to a great team effort and ongoing collaborative relationship with our delivery partner, Transport for NSW, and the wider community.

    We have also started trenching activities along Pratten Street and Floribunda Road in Kemps Creek.

    Traffic management is in place for your and our crew’s protection, please keep an eye out and drive safely in these areas.

  • Construction start date is set

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    Sydney Water and our delivery partner, Quickway, are finalising the design and preparing to start construction of the Kemps Creek Dual Pressure Mains.

    From July you will see Quickway crews in the area as they finalise investigation activities, bring in equipment and establish site compounds.

    The two new pipelines will be installed along Floribunda Road, Pratten Street and Cross Street. Traffic management will be in place in these areas. Please drive safely and keep an eye out for our workers while they deliver this essential infrastructure.

  • Archaeological salvage activities

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    As part of Sydney Waters environmental assessment for the Kemps Creek Dual Pressure Main project, a Potential Archaeological Deposit was identified along the pipeline’s alignment, near Tavistock Road.

    Before construction commences in this area, we will undertake the appropriate archaeological salvage work, to recover any Aboriginal cultural heritage items that may be in that location before construction disturbs them.

    Sydney Water has engaged an independent consultant to complete this activity and they will work with local First Nations representatives to do so.

  • Sydney Water awards construction contract

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    We are excited to announce that we have partnered with Quickway Constructions Pty Ltd. to deliver the Kemps Creek Dual Pressure Mains project.

    When completed in 2025, the two 6.8km wastewater pipelines will be essential for the commissioning of the Upper South Creek Advanced Water Recycling Centre (AWRC) at Kemps Creek.

    When the AWRC goes live in 2026, these new pressure mains will improve wastewater services and allow for development in Sydney’s South West Growth Area, improving the reliability and connection opportunities for homes and businesses in Austral, Leppington North, Rossmore, Kemps Creek, and parts of Leppington and Catherine Fields North.

    Sydney Water Head of Major Projects, Emma Pryor, said the Kemps Creek Dual Pressure Mains and USC AWRC projects are significant infrastructure investments for Sydney Water in Western Sydney.

    “We’re planning ahead to ensure we continue to provide reliable wastewater services for the forecasted growth of more than 400,000 people for the area," Ms Pryor said.

    “Building the USC AWRC is just one part of the puzzle. We also need pipelines, like the Kemps Creek Dual Pressure Mains, to collect wastewater from the surrounding region for recycling and reuse.”

    “The Kemps Creek Dual Pressure Mains will be the first of many pipelines to be constructed across Western Sydney that will transport wastewater to the USC AWRC for recycling and reuse for a number of non-drinking water purposes.”

    “The USC AWRC will use reverse osmosis – the same technology used by the desalination plant – to treat water to a high-quality and produce recycled water, renewable energy and bio-resources,” Ms Pryor said.

    The USC AWRC is currently being constructed and is expected to become operational in 2026.

    Construction activities on Kemps Creek Dual Pressure Mains will start mid-July.

Page last updated: 30 Apr 2025, 05:48 PM