Austral Leppington Wastewater Stage 3

Sydney Water is happy to announce the Austral Leppington Wastewater Stage 3 Phase 1 project is now ready to provide reliable water and wastewater services to the 1,700 lots allocated across Austral and Leppington.

Please click here for our latest delivery program update which provides information on next steps for connection, remaining construction activity and updates on our other nearby projects.

With servicing now available, this will be the final update for the project.

Sydney Water would like to thank the developer and the Austral and Leppington communities for their patience while we undertook this essential work.

With December just around the corner, we are in the final stages of delivering the Austral Leppington Wastewater Stage 3, Phase 1 project. Some of our key achievements for the month of October include:

• installed final maintenance holes along Gurner Avenue
• completed all maintenance hole installations for the Austral Carrier and Kemps Creek Carrier
• completed installing all vent shafts on Kemps Creek carrier, Bonds Creek carrier, Austral carrier and Bonds Creek carrier lead-ins
• commenced installing the drainage system for the hardstand area at the pump station

Looking forward into November, weather and ground conditions permitting, we will focus on:

• completing the Gurner Avenue pump station electrical switch room and drainage system
• restoration works at various properties impacted by our construction activity

Our requirements for lead-ins to service future developments above the 1,700 lots will be advised as part of our notice of requirements process. Sydney Water will advise Water Servicing Coordinators on the timing of lodging applications for developments above the 1,700 cap.

The Upper South Creek Advanced Water Recycling Centre, which is linked to Phase 2 servicing of Austral Leppington, is due to be operational in 2026. The dedicated project page on Sydney Water Talk can be found Upper South Creek Advanced Water Recycling Centre | Sydney Water Talk.

See below images captured by our delivery team of their progress throughout October. The November 2023 delivery update will be posted on this page during early December 2023.

Image 1: Progress photo of the pump station on Gurner Avenue

Image 2 & 3: Installation of maintenance hole along Fourteenth Avenue

Sydney Water’s Q3 2023 delivery program update for the Austral Leppington Wastewater Stage 3 Phase 1 project is available here.

This will also serve as the monthly update for September.

Don’t forget to come back again early next month for our October monthly delivery update.

Servicing remains on track for December 2023, following another productive month in delivering the Austral Leppington Wastewater Stage 3, Phase 1 project. Some of our key achievements for the month include:

• completed all wastewater pipe installation along the Austral Carrier and lead-ins
• completed maintenance hole installation on Bonds Creek carrier and Bonds Creek carrier lead-in
• completed power connection along Gurner Avenue for proposed pumping station
• ongoing works at the pumping station on Gurner Avenue including installation of piping and services

Looking forward into September, weather and ground conditions permitting, we will focus on:

• completing final installation of maintenance holes along Gurner Avenue
• ongoing installation of pump station electrical switch room at Gurner Avenue
• completing maintenance hole installation for the Austral carrier and Kemps Creek carrier
• commence the installation of vent shafts on Kemps Creek carrier, Bonds Creek carrier, Austral carrier and Bonds Creek carrier lead-in

See below images captured by our delivery team of their progress throughout August. The July-September 2023 quarterly update will be posted on this page during early October 2023.

Image 1: Maintenance hole installation along Thirteenth Avenue, Austral

Image 2: Sewer maintenance hole installation on Bonds Creek carrier and Bonds Creek carrier lead-in

Image 3 : Assembly and installation of piping at the pumping station on Gurner Avenue, Austral

Image 4: Gurner Avenue pumping station, construction in progress

July was a productive month for the Austral Leppington Wastewater Stage 3, Phase 1 project. With good progress being made, we remain on track for servicing in December 2023. Some of our key achievements during July include:

• completed all wastewater pipe tunnelling for the Austral carrier, Bonds Creek carrier, and Bonds Creek carrier lead-in
• nearing completion of wastewater pipe tunnelling for the Austral carrier lead-in
• ongoing delivery, excavation, and installation of maintenance holes – Austral carrier, Bonds Creek carrier, Kemps Creek carrier, Austral lead-in and Bonds Creek carrier lead-in
• installed wet well, valve chamber, electrical, water and power services to the new pumping station on Gurner Avenue

Looking forward into August, weather and ground conditions permitting, we will be focused on:

• completing wastewater pipe tunnelling for the Austral carrier lead-in
• completing the installation and testing of critical maintenance holes for the Bonds Creek Carrier and Bonds Creek Carrier lead-in
• continued installation and testing of maintenance holes for the Austral carrier, Bonds Creek carrier, and Bonds Creek Carrier lead-in with a view to have these completed by the end of August

See below images captured by our delivery team of their progress throughout July.

The August 2023 monthly update will be posted on this page during early September 2023.

Image 1: Shaft excavation in preparation of maintenance hole installation on Thirteenth Avenue

Image 2: Installation of upper section of maintenance hole in the shaft along Gurner Avenue

Image 3: Turning the maintenance hole from horizontal to vertical before installation along Gurner Avenue

Image 4: Breakthrough of the tunnel boring machine at Fourteenth Avenue, Austral

Sydney Water’s Q2 2023 delivery program update for the Austral Leppington Wastewater Stage 3 Phase 1 project is available here.

This will also serve as the monthly update for June.

The next quarterly update (Q3 2023) will be provided early October 2023.

Don’t forget to come back again early next month for our August monthly delivery update.

With no significant delays due to wet weather experienced during May, completion of the Austral Leppington Wastewater Stage 3, Phase 1 project remains on track for December 2023. Some of our key achievements for the project during May include:

• Ongoing tunnelling of wastewater pipes - Kemps Creek carrier, Austral carrier and the Bonds Creek Carrier
• Ongoing delivery, excavation and installation of critical maintenance holes
• Ongoing concreting at the Gurner Avenue pumping station

Looking forward into June, weather and ground conditions permitting, we will be focused on:

• Completing the tunnelling of the Kemps Creek and Bonds Creek carriers and lead-ins
• Ongoing installation and testing of critical maintenance holes
• Completing concreting at the Gurner Avenue pumping station and testing it before installation of the internal pumps & pipework

See below images captured by our delivery team of their progress throughout May.

The April-June 2023 quarterly update will be posted on this page during early July 2023.

Image 2: Installation of upper section of maintenance hole along Fourteenth Avenue

Image 3: Delivery of maintenance hole at Thirteenth Avenue

Image 4: Precast concrete wet well for the new pump station at Gurner Ave

During April our construction delivery team has made good progress on the Austral Leppington Wastewater Stage 3 project.

Some of our key achievements for the month include:

• construction of the pump station located on Gurner Avenue has commenced and progressing to schedule
• commenced tunnel boring as part of the new sewer line along Thirteenth Ave in support of the Kemps Creek Dual Pressure Main
• excavation for installation of maintenance holes completed along Twelfth Avenue
• Bonds Creek Carrier micro tunnelling as part of the sewer line is progressing well and nearing completion
• ongoing installation of sewer line along Tenth Avenue
• ongoing installation of sewer line at rear of Gurner Avenue.

Looking forward into May, weather and ground conditions permitting, we will focus on:

• continued micro tunnelling of the wastewater reticulation main along Thirteenth Avenue
• continued pipe and installation of prefabricated maintenance hole structures along several sites

See below images captured by our delivery team of their progress throughout April. Don’t forget to come back again next month for our May 2023 delivery update.

Image 1: Installation of concrete base at Maintenance Hole 1 on Gurner Avenue

Image 2: Tunnel boring along Thirteenth Avenue

Image 3: Delivery of sewer maintenance hole components to Gurner Avenue

Images 4&5: Restoration works along installed sewer infrastructure in Austral

This page will only be updated with information that is in the best interest of the public. Construction updates from February and March will be added to this page after the Caretaker period has ended.