Prospect South to Macarthur (ProMac)

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Under the ProMac project we are building new drinking water pipelines and infrastructure between Prospect South and Macarthur as part of Sydney Water's long-term plan to extend the city’s water capacity and supply.

ProMac will upgrade our existing water reservoirs at Liverpool, Cecil Park and Currans Hill as well as build two new reservoirs at Oran Park. This will allow for an extra 100 Megalitres of additional reservoir capacity in Western Sydney. That’s the equivalent of about 50 Olympic-sized swimming pools!

We’re also building 15 km of additional pipework, three pumping stations and upgrading our existing network to ensure growing communities in South Western Sydney have access to clean drinking water.

Sydney Water is investing in new infrastructure that will support the growing, dynamic South Western Sydney.

ProMac will help Sydney Water deliver on its vision of creating a better life with world-class water services.

Under the ProMac project we are building new drinking water pipelines and infrastructure between Prospect South and Macarthur as part of Sydney Water's long-term plan to extend the city’s water capacity and supply.

ProMac will upgrade our existing water reservoirs at Liverpool, Cecil Park and Currans Hill as well as build two new reservoirs at Oran Park. This will allow for an extra 100 Megalitres of additional reservoir capacity in Western Sydney. That’s the equivalent of about 50 Olympic-sized swimming pools!

We’re also building 15 km of additional pipework, three pumping stations and upgrading our existing network to ensure growing communities in South Western Sydney have access to clean drinking water.

Sydney Water is investing in new infrastructure that will support the growing, dynamic South Western Sydney.

ProMac will help Sydney Water deliver on its vision of creating a better life with world-class water services.

  • Cecil Park 30ML Reservoir refurbishment delivered on time

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    As part of the Prospect to Macarthur (ProMac) Program, we recently completed the refurbishment of the existing 30 megalitre reservoir at Cecil Park. The timing of these works was planned in 2020 to coincide with lower water demands by our customers during a late autumn / winter / early spring shutdown.

    These works were delivered on time and are now ready for the peak summer demand period. The scope of works included structural upgrades to the reservoir roof and replacement of the existing internal bitumen lining with a durable epoxy paint. Roof repairs encompassed a 50% replacement of sheeting and steel repairs to beams. Other additions include new hatches, ventilation and divers’ ladders.

    Cecil Park Reservoir is connected to the new water trunk main currently being installed from Liverpool reservoir to Kemps Creek and will meet the increased demands from growth in South West Sydney and the new Aerotropolis.


    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you. Thank you for your cooperation during this essential work.

  • Bossley Park - lane closure, Prairie Vale Road and interruptions to water supply

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    As part of the Prospect to Macarthur (ProMac) project, we are upgrading the existing water pumping station inside Prospect Reservoir to provide drinking water services for 84,000 new homes in the South West Growth Area and Western Sydney Aerotropolis Growth Area.

    As part of these works, we will be installing a valve on Prairie Vale Road, Bossley Park Thursday 4 November 2021, and expect to finish by the end of November 2021, weather permitting. These works will control the pressure of the water as it enters homes. There will also be a small electrical cabinet and pits installed on the council verge (please refer to the map). There will be an interruption to water supply during the final stages of work. Residents will be notified before this occurs.

    Traffic changes

    As we complete this work, there will be a temporary closure of the eastbound lane along Prairie Vale Road between Crow Place and Apache Road. All traffic will share the use of the westbound lane on a stop-slow arrangement. The footpath will be closed to pedestrians and traffic controllers will ask pedestrians to stop and wait before crossing the road.

    Motorists, cyclists and pedestrians are advised to observe all project signage and traffic control directions during construction. Please see map for the location of work.

    Our work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm on Saturdays
    • We will not work on Sundays or public holidays.

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you. Thank you for your cooperation during this essential work.



  • Kemps Creek - temporary water outages and minor traffic delays, corner of Western Road and Elizabeth Drive

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    In Kemps Creek, we are installing 4.5 km of new water main to ensure our existing and future customers continue to have reliable access to clean drinking water. We have completed installation of the pipeline along Cross Street and Western Road and will now connect this main to the existing network at Elizabeth Drive.

    We will complete preparation works on Tuesday 2 November 2021 during the daytime between 7 am and 6 pm and then complete the final connection works at night on Wednesday 3 November 2021 between 7 pm and 8 am, weather permitting. We will maintain access to the adjacent service road however, there may be some minor delays. Traffic control will be in place to safely assist motorists around our work area. Please see map for location of work.

    Water outage

    While this connection is completed, some residents will experience water outages for up to five hours on Wednesday 3 November 2021 only between 9 pm and 2 am. Sydney Water will notify all affected residents in a separate letter.

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you. Thank you for your cooperation during this essential work.



  • Mt Annan - upcoming weekend work and temporary water outages

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    As part of the Prospect to Macarthur (ProMac) project we are building a new drinking water pipeline between the Narellan South Reservoir in Mount Annan and Sugarloaf Pump Station in Menangle Park.

    We have completed installation of the pipeline inside William Howe Regional Park and will now connect this main to the Narellan South Reservoir. Due to operational requirements, this work will take place over a weekend from 6.30 am Saturday 30 October to 6.30 am Sunday 31 October 2021.

    Water outage

    While this connection is completed, some residents will experience a short-term water outage. Sydney Water will notify all affected residents in a separate letter.

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you. Thank you for your cooperation during this essential work.



  • Cecil Hills - temporary traffic changes at intersection of Balmoral Circuit and Lancaster Avenue

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    We’ll need to work in Balmoral Circuit near the intersection of Lancaster Avenue to access and remove an air valve pit and test the new pipe. This work will take up to four days to complete between Monday 25 October and 8 November 2021, weather permitting.

    Our work will include:

    • digging and removing the air valve pit located within the road and road verge
    • testing the new pipes
    • restoring the impacted areas.

    Work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm on Saturdays
    • We will not work on Sundays or public holidays.

    Traffic changes

    As we complete this work, there will be a temporary closure of the westbound lane along Balmoral Circuit between Lancaster Avenue and Angela Street. Traffic will be on a stop-slow arrangement and there will also be pedestrian detours.

    Traffic controllers will be in place to safely assist vehicles and pedestrians around our work area. Please see map overleaf for location of work.

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you. Thank you for your cooperation during this essential work.


  • West Hoxton - traffic changes and upcoming interruptions to water supply

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    As part of the Prospect to Macarthur (ProMac) project we are upgrading the existing reservoirs at Liverpool and Cecil Park as well as building two new reservoirs at Oran Park to allow for a total of 100 ML of additional reservoir capacity.

    We are also upgrading the existing water pumping station inside Prospect Reservoir to provide drinking water services for 84,000 new homes in the South West Growth Area and Western Sydney Aerotropolis Growth Area.

    As part of these works, we will be installing an air valve on the corner of Twenty Fifth Avenue and Twenty Sixth Avenue in West Hoxton which will release any built-up air in the drinking water pipeline. This air valve will ensure the performance of the pipe is maintained. Works will begin on Monday 18 October 2021, expected to finish by the end of October 2021, weather permitting. There will be an interruption to water supply during the final stages of work. Residents will be notified before this occurs.

    Work will involve:

    • investigating and surveying the area

    • digging in the council verge and road to install the valve

    • restoration of impacted areas.

    Traffic changes

    During the works there will be changes to traffic conditions. A lane closure and traffic control will be in place to safely assist motorists around our work area. Motorists, cyclists and pedestrians are advised to observe all project signage and traffic control directions during construction. Please see map for the location of work.

    Our work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm on Saturdays.
    • We will not work on Sundays or public holidays.

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you.


  • Kemps Creek - cathodic protection installation

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    We are installing 26 cathodic protection pits and test points along the verge of Cross Street and Western Road. Cathodic protection is a system used to extend the life of the steel water main by minimising corrosion of the pipe. This requires installing sacrificial metals (anodes) alongside the pipeline which corrode at a faster rate than the steel main. These anodes are attached to the pipe with cables which lead up to an above-ground test point mounted on a pole and a cabinet (see image below).

    The work will be happening in localised areas between Monday 11 October and Saturday 30 October 2021, weather permitting.

    Traffic changes

    During the works there will be changes to traffic conditions on Cross Street and Western Road. Lane closures and traffic control will be in place to safely assist motorists around our work areas. Please see map below for location of work.

    Our work hours

    • 7 am to 6 pm Monday to Friday

    • 8 am to 1 pm Saturday

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you.

    Example of a cathodic protection test point

    Location of work

  • Cecil Hills - Liverpool Reservoir update: internal blasting & extended Sundays to continue

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    We are continuing with blasting and painting works on the tank’s interior surface. This process involves using abrasive grit blasting to remove rust and welding residue to leave a smooth surface for painting.

    Unfortunately, due to unforeseen circumstances we are behind schedule and will continue working extended hours to ensure the reservoir is operational in time for summer when demand for water is higher.

    Our work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 5 pm on Saturdays and Sundays

    We will continue working on Saturdays and Sundays until Sunday 5 December 2021.

    What you need to know

    This work will not affect your water services. We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you, this includes:

    • completing blasting works inside the tank under negative air pressure to stop dust from exiting the tank
    • not working in windy conditions
    • moving equipment such as generators and compressors as far away from properties as reasonably practicable.

    Unfortunately, blasting activities are noisy, and we apologise for the inconvenience while we complete this task.



  • Cowpasture Road, Cecil Hills - night work and traffic changes

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    We are building a water pumping station, a reservoir and water pipelines within our Liverpool Reservoir facility in Cecil Hills.

    Work will begin to install electrical cabling by tunnelling underneath Cowpasture Road. To minimise impacts to traffic during the day, we’ll complete this work over 10 night shifts between Wednesday 22 September and Friday 15 October 2021, weather permitting.

    Traffic changes

    During the works there will be changes to traffic conditions on Cowpasture Road. Lane closures and a speed reduction will be in place for the safety of motorists and our workers. Please see map for the location of work.

    Our work hours

    From Wednesday 22 September we’ll be working at night.

    When tunnelling under Cowpasture Road (underbore), we will need to work five consecutive nights to complete this work. For all other activities work will be limited to three nights in a row followed by one night’s rest before work re-commences.

    Our nightwork hours:

    • Monday to Sunday 7 pm to 6 am

    Our standard (day) hours:

    • Monday to Friday 7 am to 6 pm

    • Saturday 8 am to 1 pm, if required.

    What you need to know

    The health and wellbeing of Sydney Water crews are our top priority. All crews are adhering to testing, social distancing, and mask wearing requirements.

    Members of the public can rest easy knowing that Sydney Water's front line crews are authorised to work safely to continue delivering these essential services for their communities.

    We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you.


  • Elizabeth Drive - single lane closure, 7pm Sunday 5 September

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    As part of the Prospect to Macarthur (ProMac) project we are upgrading the existing reservoir at Cecil Park. We need to repair the entrance to the access road on Elizabeth Drive leading up to the reservoir.

    The work will take place between 7 pm Sunday 5 September and 7 am Monday 6 September 2021, weather permitting. We will do this work over one night to minimise impacts to road users during the day.

    Traffic changes

    We will need to close a section of the westbound lane on Elizabeth Drive between Duff Road and Cecil Road, Cecil Park. All traffic will share the use of the eastbound lane along Elizabeth Drive, managed by traffic controllers. Motorists may experience some delays during this work. Please see map for location of work.

    What you need to know

    The health and wellbeing of Sydney Water crews is our top priority, including employees and contractors who work in the identified Local Government Areas. All crews will adhere to testing, social distancing and mask requirements. We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you.


Page last updated: 17 May 2022, 11:33 AM