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.

  • Currans Hill - project update and site demobilisation

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    supporting image

    From now through to mid December the site will be demobilised in preparation for the commissioning of the site i.e. filling the reservoir. Residents in the area may notice an increase in activity on and around the site during this period. We will continue to let you know if any of this work will have an impact on residents. In addition, we will also contact residents directly who have requested Sydney Water do so regarding upcoming works.


    Upcoming work

    As we enter the final stages of the works on the new reservoir in Currans Hill there will be an increase in construction traffic coming in and out of the site. Traffic will continue to use the heavy vehicle route approved by Camden Council, via Turner Road, Ascot Drive and Manooka Road (refer map below).


    This work will involve:

    • The demobilisation and removal of the large crane (affectionately named “Pebbles” by the local pre-school earlier this year) from the site. Due to the size of the crane a large float is required for its transport, this will enter the housing estate from Turner Road during day time hours. Residents can expect some short-term local road closures and traffic provisions in place along the route shown in the below image. We request that any traffic control measures e.g. cones, signs etc. are not moved during this period.
    • Construction of the permanent access stair tower will commence late October and painting of the reservoir is ongoing through to late November, which may increase traffic volumes in the area.
    • The final stages of structure testing will commence 1st November and will last approximately six weeks. Residents may notice these works occurring between 6:00pm and 10:00pm. However, this is considered low impact work with no use of heavy plant or equipment. We expect no disturbance to local residents,


    Our standard work hours

    • 7:00am to 6:00pm Monday to Friday
    • 8:00am to 5:00pm Saturday



  • Harrington Park - upcoming out of hours work within the Sydney Water Harrington Park Pumping Station site

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    As part of the Prospect to Macarthur (ProMac) project, we are building a new water pumping station in Harrington Park.

    Between May and June 2022, we completed two new water main connections which will eventually connect to the live and existing Sydney Water network.

    Upcoming work

    We are now ready to complete the final stage of connections. This will occur inside the Sydney Water Harrington Park Pumping Station site along The Northern Road. In addition to our standard work hours, we will be:

    • working extended hours on Saturday 21 October 2023, between 7:00am and 5:00pm, to prepare for the upcoming water main connection.
    • working outside of standard work hours across 72-hours, commencing from 6:00 pm Wednesday 25 October until 7:00 am Friday 27 October 2023, weather permitting.

    Standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday.

    This work will involve

    • noise from trucks and machinery with reversing beepers. Some noise is to be expected after midnight
    • cutting, welding and lifting of pipes
    • installing new pipework
    • pressure testing new pipework
    • backfilling and restoring the excavated area.

    Location of work

  • Oran Park - October extended weekend hours

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    As part of the Prospect to Macarthur (ProMac) program we are building two new water reservoirs in Oran Park to provide drinking water services for 84,000 new homes in the South West Growth Area, Western Sydney Aerotropolis Growth Area, Liverpool CBD and Menangle Park.

    Upcoming work

    Our contractor Vaughan Civil are continuing to build foundations for two 24ML reservoirs at Oran Park. To meet critical project milestones, we will be working extended weekend hours between Sunday 1 October and Sunday 29 October 2023, weather permitting. In addition to our standard work hours, this will involve working between 8:00am and 6:00pm Saturdays and Sundays.

    Standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday. We will not work on Public Holidays.

    What you need to know

    We know our work can be disruptive, so we’ll make every effort to reduce impact by:

    • switching vehicles and machinery off when not in use
    • ensuring materials are not dropped from heights
    • ensuring light and heavy vehicles are parked away from residential streets.

    Location of work

  • Currans Hill - one oversized delivery to temporarily impact parking along Turner Road, Ascot Drive and Manooka Road

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    Upcoming work

    We are continuing with blasting and painting of the new reservoir and are ready to install the roof. The roof sheeting will be transported in a single delivery on the back of a specialised 28 metre truck, capable of carrying roof sheets 21 metres in length.

    The delivery will occur on the morning of Tuesday 5 September 2023. Due to travel restrictions on oversized transportations, the delivery will occur at any point between 4:00am and 7:00am. The truck will park on site with the delivery until the items are ready to be unloaded during standard construction hours. The truck’s trailer will fold to a reduced size before demobilising from site on the same morning.

    This work will involve:

    • mobilising a large 28m truck through Currans Hills outside of standard work hours
    • using traffic control and a light vehicle escort along the heavy vehicle route (map overleaf)
    • placing signage and traffic cones to distinguish ‘no parking’ zones at pinch points along the heavy vehicle route in Currans Hill. Signage and cones will be placed the afternoon prior to delivery
    • door knocking properties impacted by temporary parking restrictions prior to the delivery day
    • reducing the size of the truck trailer prior to demobilising.

    Construction traffic and impacts

    There will be no road closures however delays are expected along the heavy vehicle route while the delivery is safely escorted around narrow turns. To minimise disruption to the community, we recommend avoiding this route next week between the designated delivery hours.

    Temporary ‘no parking’ signs will be positioned on the afternoon prior to delivery. Motorists and pedestrians are advised to follow all project signage and traffic control directions.

    Heavy vehicles will continue to use the route approved by Camden Council, via Turner Road, Ascot Drive and Manooka Road.

    Our standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday (we are currently working extended Saturday hours until 5:00 pm for the duration of blasting and painting)
    • We will not work on Sundays or Public Holidays.

    Heavy vehicle route

  • Kemps Creek - geotechnical investigations in council road verge along Martin Road and Overett Avenue

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    To help inform the planning and design progression of a new drinking water pipeline, Sydney Water has engaged AECOM Australia Pty Ltd (AECOM) to undertake geotechnical investigation work in the council road verge along Overett Avenue and Martin Road in Kemps Creek.

    We will be undertaking geotechnical investigation work from Tuesday 15 August and will continue this work intermittently until the end of September 2023, weather permitting.

    This work will involve:

    • drilling boreholes in the council road verge along Martin Road and Overett Avenue
    • detecting underground services/utilities
    • excavating test pits to assess geological conditions of the area
    • carrying out topographical surveys along Martin Road and Overett Avenue
    • restoring the impacted areas.

    Construction traffic and impacts

    There will be no road closures while we undertake this work. You may experience short traffic delays while heavy vehicles navigate through the suburb. Traffic control may be on site to assist with this work.

    Our standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday. We will not work on Sundays or Public Holidays.


    Location of work
    Under the ProMac project, Sydney Water will be working in several locations along the following route:

  • Currans Hill - project update and extended Saturday hours

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    Upcoming work

    We have completed installation of steel panels to form the new reservoir. We now need to remove the temporary coating and replace it with a permanent protective coating. This work will take 12 weeks to complete from Monday 31 July 2023, weather permitting.

    To meet critical project milestones, we will be working extended Saturday hours until 5:00 pm for the duration of this painting and blasting phase.


    Our standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday (we will be working extended Saturday hours until 5 pm for the duration of this painting and blasting phase)
    • We will not work on Sundays or Public Holidays.


    This work will involve

    • delivery of specialised painting and blasting equipment
    • installation of temporary protective screens around the reservoir
    • blasting sections of the reservoir using high pressure blasting equipment early in the day
    • painting the blasted area in the afternoon.


    Construction traffic and impacts

    There will be no road closures while equipment deliveries are completed. You may experience short traffic delays while heavy vehicles navigate through the suburb outside of peak hours. Some traffic controllers may need to park in nearby streets on delivery days. Heavy vehicles will continue to use the route approved by Camden Council, via Turner Road, Ascot Drive and Manooka Road.

  • Cecil Hills - extended Saturday work hours commence from July until September 2023

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    As part of the Prospect to Macarthur (ProMac) program we are building a new water pumping station and new water pipelines within our Liverpool Reservoir facility to provide drinking water services for 84,000 new homes in the South West Growth Area and Western Sydney Aerotropolis Growth Area.

    The contractor has completed the installation of all civil, electrical and mechanical work at the Liverpool Reservoir site in preparation for the final stages of construction. The final stages of work will commence from Monday 10 July 2023, weather permitting.

    To meet critical project milestones, we will be working extended Saturday hours from 8 am to 5 pm from Saturday 15 July until 30 September 2023 (refer to map overleaf for location of work).

    Location of work


  • Cecil Hills and Bonnyrigg - nightwork to commence along Cowpasture Road

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    Construction of the new water pumping station inside the Liverpool Reservoir facility is nearly complete. We are currently completing commissioning activities to bring the facility into operation.

    As part of the work, we need to decommission the existing Bonnyrigg Water Pumping Station along Cowpasture Road, between Cecil Hills and Green Valley. This work will take 16 weeks to complete between Saturday 15 July and Monday 30 October 2023, weather permitting.

    We will notify you if there will be interruption to your water supply.


    This work will involve

    • work inside the Bonnyrigg Pump Station within standard work hours
    • excavations along council verge on the west end of Rodeo Drive within standard work hours
    • excavations parallel to Cowpasture Road outside of standard work hours at night
    • commissioning works on Rodeo Drive outside of standard work hours at night
    • installation of new electrical cables
    • restoration of all impacted areas.

    Location of work

  • Cecil Hills - night work to occur inside new pump station at Liverpool Reservoir facility, week commencing Monday 5 June 2023

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    As part of ProMac we are building a new water pumping station at the Liverpool Reservoir facility in Cecil Hills.

    Upcoming work

    We are currently undertaking commissioning activities to bring the new pump station into operation. As part of this work, we have been testing the newly installed pumps inside the facility. A portion of this testing will need to be completed at night between 9 pm to 7 am from Monday 5 June to Friday 9 June 2023.

    There will be minimal noise impacts and no interruptions to your water services while we complete this work.

    This work will involve

    • flushing water through newly installed pumps outside of standard work hours (refer to map overleaf for location of testing)
    • monitoring noise output
    • operating lights at the site outside of standard work hours
    • vehicle and worker movements around the site outside of standard work hours.

    Standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday. We will not work on Sundays or Public Holidays.


    Location of work

  • Mount Annan - re-chlorination plant delivery outside of standard work hours, Tuesday 16 May 2023

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    We are building a new re-chlorination plant at our Narellan South Reservoir site at Mount Annan, to improve the management of water quality for our customers.

    Upcoming work

    The re-chlorination plant has been built off site and is now ready to be delivered in three units. A crane will arrive to site during standard work hours on Monday 15 May 2023.

    Due to busy road conditions during the day, we will need to transport the re-chlorination plant units outside of standard work hours. The units will be transported to site using three heavy vehicles on Tuesday 16 May 2023 between 2 am and 7 am, weather permitting.

    The heavy vehicles will park on site with the delivery until work can commence during our standard construction hours.

    Our standard work hours

    • 7 am to 6 pm Monday to Friday
    • 8 am to 1 pm Saturday. We will not work on Sunday or Public Holidays.

    This work will involve:

    • a crane mobilising to the site during standard construction hours
    • multiple oversized construction vehicles entering the site outside of standard construction hours
    • unloading the re-chlorination plant using a crane during standard construction hours.

    Construction traffic and impacts

    There will be an increase in construction traffic around Mount Annan during this activity (refer to map overleaf). Residents can expect to see truck and crane movements along Mount Annan Drive, Swansona Avenue, Commelina Drive, Moyengully Avenue and Indigofera Circuit (northern access route).

    Location of work


Page last updated: 28 Jun 2024, 01:40 PM