Prospect South to Macarthur (ProMac)

Share Prospect South to Macarthur (ProMac) on Facebook Share Prospect South to Macarthur (ProMac) on Twitter Share Prospect South to Macarthur (ProMac) on Linkedin Email Prospect South to Macarthur (ProMac) link

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.

  • Update on works - Currans Hill Reservoir

    Share Update on works - Currans Hill Reservoir on Facebook Share Update on works - Currans Hill Reservoir on Twitter Share Update on works - Currans Hill Reservoir on Linkedin Email Update on works - Currans Hill Reservoir link
    supporting image

    Sydney Water is working to expand our network to meet increased demands from growth in South West Sydney, ensuring our existing and future customers continue to have reliable access to clean drinking water. As part of the Prospect to Macarthur (ProMac) project we have replaced the reservoir in Currans Hill so that it can reliably supply water to the community for decades to come.

    At the Currans Hill Reservoir we are nearing completion and are in the final stages of blasting and painting, installing the stair tower and civil works. You will begin to see an increase in traffic as we finalise construction and demobilise from the site. We will continue to update you on our progress and further scheduled work.

    Upcoming work:

    Previous out of hours work permits expired in May. As our work is nearing completion, to meet critical milestones we will be working outside regular hours on Saturdays from 7am to 5pm. Commencing Saturday 29 June 2024 until Saturday 7 September 2024,

    Our standard work hours:

    • 7:00 am to 6:00 pm Monday to Friday.
    • 8:00 am to 1:00 pm Saturday.

    This work will involve:

    • Abrasive blasting of tank shell during standard hours.
    • Painting of tank shell during extended Saturday hours.
    • Reservoir completion general work.

    What you need to know:

    Thank you for your support and patience during this essential work. We know our work can be disruptive, so we’ll make every effort to reduce any impact this work may have on you. To help minimise the impact the following is being implemented.

    • Scheduling painting for hours 1-5pm Saturday. Painting deemed the least noisy activity.
    • Switching off all truck radios (commercial) upon arrival at site and use truck communication radios with truck cabin windows and doors closed.
    • No unnecessary loud noises (e.g.talking loudly, slamming doors).
    • Arranging the work site to minimise the use of movement alarms on vehicles and mobile plant equipment and keep truck reversing to a minimum.
    • Taking extra care to minimise noise while loading or unloading trucks with materials or equipment (e.g.avoid dropping materials from height and metal to metal contact).
    • Turning off plant and equipment that is not being used and don’t leave trucks idling near homes.
  • Update on Works - Oran Park Reservoirs

    Share Update on Works - Oran Park Reservoirs on Facebook Share Update on Works - Oran Park Reservoirs on Twitter Share Update on Works - Oran Park Reservoirs on Linkedin Email Update on Works - Oran Park Reservoirs link
    supporting image

    Sydney Water is working to expand our network to meet increased demands from growth in South West Sydney, ensuring our existing and future customers continue to have reliable access to clean drinking water.

    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 CB&I Australia are currently constructing two 24ML steel reservoirs at Oran Park. To meet critical project milestones, we will have equipment running at night from Friday 28 June 2024 through to Sunday 29 September 2024, weather permitting. This equipment will continue to run from 6pm through to 8am, 7 days a week.

    Equipment at Night

    • A dehumidifier and generator will be located on the site surrounded by a Sonic Quilt Noise Blanket to reduce any noise impact. This equipment is required to support painting activities being undertaken throughout winter and spring.

    Construction traffic and impacts

    • Light and heavy vehicles will continue to enter and exit the site via access off The Northern Road. Use of the Southern Access Road off Brundson Road will be avoided during out of hours work where practical. Refer to map overleaf.
    • Parking of light and heavy vehicles will be confined to the construction site.

    What you need to know

    • The running of this equipment is not expected to be disruptive.

    Standard work hours

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

  • Update on works - Harrington Park Pump Station

    Share Update on works - Harrington Park Pump Station on Facebook Share Update on works - Harrington Park Pump Station on Twitter Share Update on works - Harrington Park Pump Station on Linkedin Email Update on works - Harrington Park Pump Station link
    supporting image

    Sydney Water is working to expand our network to meet increased demands from growth in South West Sydney.

    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.

    When completed these reservoirs will be connected to the Harrington Park Pump Station ensuring our existing and future customers continue to have reliable access to clean drinking water. We thank you for your patience and cooperation as we complete this critical infrastructure.

    Upcoming work

    Sydney Water is currently working with Endeavour Energy to energise the water pumping station. To meet critical project milestones and ensure the safe transition of the power supply we will be working outside standard hours Saturday 29 June 2024, 1pm – 5pm and Sunday 30 June 2024, 7am – 10.30 am.

    Standard work hours:

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

    This work will involve:

    • Light vehicle movements.
    • Light tools and generators in use.

    Construction traffic and impacts:

    • The works are not expected to impact the current motorists, cyclists or pedestrians on the Northern Road or nearby housing estates.

    What you need to know:

    We know our work can be disruptive at times so we’ll make every effort to minimise disturbances by:

    • Turning off all vehicles when not in use.
    • Completing the noisiest work during standard hours.


  • Upcoming work Badgerys Creek and Kemps Creek.

    Share Upcoming work Badgerys Creek and Kemps Creek. on Facebook Share Upcoming work Badgerys Creek and Kemps Creek. on Twitter Share Upcoming work Badgerys Creek and Kemps Creek. on Linkedin Email Upcoming work Badgerys Creek and Kemps Creek. link
    supporting image

    Sydney Water Corporation ABN 49 776 225 038 (Sydney Water) is working to expand our network to meet increased demands from growth in South West Sydney, ensuring our existing and future customers continue to have reliable access to clean drinking water. To do this, we are planning to provide new and upgraded drinking water services to both residential and commercial areas within the Western Sydney Aerotropolis Growth Area (WSAGA).

    To service the ongoing development within Western Sydney including the Western Sydney Airport (WSA), a new trunk water main has been designed to run from Western Road, Kemps Creek, to the WSA site at Badgerys Creek.

    Works will include:

    • Service locating the alignment to verify design information
    • Installation of new DN750 watermain along Overett Avenue and Martin Road
    • Horizontal Direction Drilling under South Creek and Badgerys Creek
    • Micro-tunnel crossing of Elizabeth Drive.


    Horizontal Directional Drilling (HDD) early works commenced along Elizabeth Drive, Badgerys Creek in November 2023. The next stage of the project is due to commence mid May. During this time, residents in Overett Avenue and Martin Road will notice an increase in construction traffic, with traffic controls being used to ensure a safe environment for work crews and road users.

    We have included below an indicative aerial map of where the pipeline will be delivered. If you have any questions or enquiries, please contact the ProMac Community Team on 1800 678 098.

  • Harrington Park Pump Station update

    Share Harrington Park Pump Station update on Facebook Share Harrington Park Pump Station update on Twitter Share Harrington Park Pump Station update on Linkedin Email Harrington Park Pump Station update link
    supporting image

    Since our December newsletter we have made good progress at Harrington Park Pump Station. The main focus has been on internal tasks, with electrical and cable work nearing completion, to be succeeded by HV electrical energisation and commissioning activities. Moreover, the installation of the permanent noise wall is complete, in the community favored “monument” colour has been successfully finished.

    Civil works have commenced to finish the carpark and access driveways as well as landscaping at the rear of the site. Although there are remaining tasks, we anticipate completion by end May.

    Landscaping plans

    Planning is underway to restore this site. Once a landscaper and design is finalised we will inform the Harrington Park community accordingly.

    When construction of Harrington Park Pump Station is complete, the team will leave the site until the Oran Park reservoirs are constructed. They will then return to complete the remaining commissioning activities, before bringing the station into full operation.

  • April Newsletter - Oran Park

    Share April Newsletter - Oran Park on Facebook Share April Newsletter - Oran Park on Twitter Share April Newsletter - Oran Park on Linkedin Email April Newsletter - Oran Park link
    supporting image

    Sydney Water has a long-term plan to increase resilience in our network and extend the city’s water capacity and supply.

    As part of the Prospect South to Macarthur (ProMac) program we are currently constructing two 24 megalitre water reservoirs at Oran Park and a rechlorination plant.

    When complete the reservoirs will hold equivalent to 50 olympic sized swimming pools. They will be connected to the new pump station at Harrington Park to increase supply to the Macarthur region.

    While we do our best to minimise the impact on the community we do appreciate the work we do can impact some more than others. We thank the Oran Park and Harrington Park communities for your patience and cooperation.

    Oran Park out of hours work

    As we progress tank construction we will continue to occasionally work outside of our standard hours. Standard work hours are:

    7am to 6pm Monday to Friday

    8am to 1pm Saturday. We will not work on Public Holidays.

    Currently extended hours of operation are in place on Saturday 1pm to 6pm and Sunday, 8am to 6pm until 27 October 2024.

  • December Newsletter - Oran Park and Harrington Park

    Share December Newsletter - Oran Park and Harrington Park on Facebook Share December Newsletter - Oran Park and Harrington Park on Twitter Share December Newsletter - Oran Park and Harrington Park on Linkedin Email December Newsletter - Oran Park and Harrington Park link
    supporting image

    Sydney Water has a long-term plan to increase resilience in our network and to extend the city’s water capacity and supply. As part of the Prospect to Macarthur (ProMac) program a new reservoir at Liverpool was constructed. Cecil Park reservoir was refurbished and upgrade works are now complete and two new reservoirs at Oran Park are under construction, to allow for a total of 100 megaliters of additional reservoir capacity. That’s equivalent to about 50 olympic-sized swimming pools!

    Whilst we do our best at Sydney Water to minimise the impact on the local community, we appreciate the work we do can impact some more than others. We thank the Oran Park and Harrington Park communities for your continued support, patience and cooperation while we complete this essential work, to provide clean, reliable drinking water to the community.

    Oran Park reservoir update

    Since our last newsletter, principal contractor Vaughan Civil, have completed the following works at the Oran Park Reservoir site:

    • Construction of two steel reinforced concrete reservoir foundations.
    • Stair tower foundation.
    • Installation of a piled perimeter wall.
    • Pavement and sealing works.
    • Topsoiling and landscaping.

    A new principal contractor has been appointed,CB&I Australia, to construct the two new reservoirs. Each reservoir will hold 24 megalitres of clean drinking water and will be 21m high and 42m in diameter. The completed reservoirs will connect to the Harrington Park Pump Station.


    The holiday shutdown and work resumption

    Work will cease at Oran Park on Wednesday 20 December 2023 resume on Wednesday 3 January 2024. Harrington Park will cease work on Friday 22 December 2023 and resume Monday 8 January 2024. During the shutdown, all ProMac worksites will be regularly inspected to ensure temporary fencing and environmental controls are secure. If you are concerned about the condition of the site during this break, please notify the community team who will be on-call over this period.

    Sydney Water would like to take this opportunity to wish everyone Season’s Greetings and all the best for a safe and happy holiday season.

    Out of hours work at Oran Park reservoir

    As we progress tank construction, and finalise stormwater construction we will continue to occasionally work outside of our standard hours. Standard work hours are:

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

    From 2 December 2023 to 25 February 2024 extended hours of operation will be in place on Saturday and Sunday, 8am to 6pm. A notification regarding these works was distributed to Oxley Ridge residents on 25 November 2023.

    Harrington Park, pump station update

    Contractor Downer is finalising the construction of a new pump station in Harrington Park which will connect Narellan South Reservoir to Oran Park Reservoir to meet increased demands from growth in South West Sydney. Once in operation, the pump station will service surrounding suburbs between the two reservoirs.

    In the past few months we have connected the station to the mains line, installed station doors and completed key mechanical and electrical works.

    Works to come in 2024

    • Flexible pavement and driveway construction.
    • Stormwater drainage works.
    • Security fence installation.
    • Landscaping and site restoration.
    • Construction of a 3m high noise wall.

    When construction of Harrington Park Pump Station is complete, the team will leave the site until the Oran Park Reservoirs are constructed. A return to site will occur thereafter to complete the remaining commissioning activities, before bringing the station into operation.

  • December newsletter - Cecil Hills, Liverpool, Elizabeth Hills

    Share December newsletter - Cecil Hills, Liverpool, Elizabeth Hills on Facebook Share December newsletter - Cecil Hills, Liverpool, Elizabeth Hills on Twitter Share December newsletter - Cecil Hills, Liverpool, Elizabeth Hills on Linkedin Email December newsletter - Cecil Hills, Liverpool, Elizabeth Hills link

    Sydney Water has a long-term plan to increase resilience in our network and to extend the city’s water capacity and supply. As part of the Prospect South to Macarthur (ProMac) program we have been constructing a new drinking water pipeline, reservoir and pump station at Cecil Hills to service the Liverpool area. On the same site we are constructing a re-chlorination plant (RCP) due for completion in 2024.

    Whilst we do our best at Sydney Water to minimise the impact on the local community, we appreciate the work we do can impact some more than others. We thank the Cecil Hills community for your continued support, patience and cooperation while we complete this essential work, to provide clean, reliable drinking water to the community.

    Liverpool, pump station update

    Since our August update, our Principal Contractor, Service Stream, has completed the following works:

    • Commissioning activities to bring the new facility into operation.
    • Testing of the pumps.
    • Installation of the bioretention basin.

    Service Stream have now left the site as Principal Contractor. New contractor, Ferrycarrig, is currently installing the RCP and works associated with this will continue into 2024. John Holland is also undertaking works on the northern portion of the site relating to the Sydney Water Upper South Creek Pipelines.

    Fun Fact!

    During construction there was 3,573 tonnes of spoil removed from the site during construction.


    Restoration of the site

    As ProMac work comes to an end and areas are restored, we will progressively replant to filter views of the new infrastructure and return some of the bush outlook. This work is ongoing during the construction of the re-chlorination plant. Much of this work will be dependant on species availability, weather and the appropriate seasonal planting requirements. We thank you for your patience during the restoration.

    Did you know!

    Once complete the new pump station is capable of delivering up to 153 mega liters of

    clean drinking water to the community every day.


    Re-chlorination plant

    To improve the management of water quality for our customers, Sydney Water is installing a small re-chlorination plant inside the Liverpool Reservoir facility at Cecil Hills. Located towards the centre of the site, the building is made offsite and delivered as a complete unit on the back of a truck and lifted into position using a crane. In preparation for this, foundations and surrounding access roads have been constructed. This work began in September 2023 along with installation of electrical provisions and control cabling and is expected to be completed by early to mid-2024.


    A re-chlorination plant automates the dosing and monitoring of chlorine into the adjacent reservoirs. The building will not be noisy when operational.

    The holiday shutdown and work resumption

    Work will cease on Friday 22 December 2023 and resume on Monday 8 January 2024. During the shutdown, all ProMac worksites will be regularly inspected to ensure temporary fencing and environmental controls are secure. If you are concerned about the condition of the site during this break, please notify the community team who will be on-call over this period.

    Sydney Water would like to take this opportunity to wish everyone Season’s Greetings and all the best for a safe and happy holiday season.

  • December Newsletter - Currans Hill Reservoir

    Share December Newsletter - Currans Hill Reservoir on Facebook Share December Newsletter - Currans Hill Reservoir on Twitter Share December Newsletter - Currans Hill Reservoir on Linkedin Email December Newsletter - Currans Hill Reservoir link
    supporting image

    Sydney Water has a long-term plan to increase resilience in our network and to extend the city’s water capacity and supply. As part of the Prospect South to Macarthur (ProMac) program we have been constructing a new reservoir in Currans Hill.

    Whilst we do our best at Sydney Water to minimise the impact on the local community, we appreciate the work we do can impact some more than others. We thank the Currans Hill community for your continued support, patience and cooperation while we complete this essential work, providing clean, reliable drinking water to the community.

    Currans Hill, reservoir update

    Our Principal Contractor, Brockman Engineering, has been working hard to complete the Currans Hill reservoir since our August update. The reservoir is nearing completion and will be introduced into the Sydney Water network soon to further bolster water supply in the area.

    Progress works have included:

    • Completion of the reservoir structure.
    • Installation of the roof.
    • Dismantling the temporary stair platform and preparing foundations for the permanent stair structure.
    • Dismantling and removing the crane affectionately named by the local pre-school children as “Pebbles”.
    • Blasting the internal reservoir walls and removing the temporary coating for surface protection application.
    • Application of epoxy paint to interior of reservoir to ensure years of service to the community.

    Fun Fact!

    It may not look like it from a distance, but this reservoir is as large in diameter as it is high (21m).

    Did you know?

    The inside of the tank is blasted using a magnetic robotic unit remotely driven on the interior of the reservoir, blasting the surface back to a white metal profile in preparation for the interior coating.


    Works to come in 2024

    The main reservoir structure is nearing completion, with only minor works taking place in 2024. These include delivery and construction of the permanent stair tower and installation of access roof hatches. As works progress to the commissioning phase, the contractor will demobilise the plant and equipment from site. The site will then be restored which includes minor restoration works on access ways and roads.

    The holiday shutdown and work resumption

    Work will cease at the Currans Hill site from Friday 22 December 2023 and resume on Monday 8 January 2024. During the shutdown, all ProMac worksites will be regularly inspected to ensure temporary fencing and environmental controls are secure.

    If you are concerned about the condition of the site during the shutdown, please notify the community team who will be on-call over this period.

    Sydney Water would like to extend to everyone Season’s Greetings and all the best for a safe and happy holiday season.

  • Oran Park Reservoirs - Extended working hours

    Share Oran Park Reservoirs - Extended working hours on Facebook Share Oran Park Reservoirs - Extended working hours on Twitter Share Oran Park Reservoirs - Extended working hours on Linkedin Email Oran Park Reservoirs - Extended working hours link
    supporting image

    Sydney Water is working to expand our network to meet increased demands from growth in South West Sydney, ensuring our existing and future customers continue to have reliable access to clean drinking water.

    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 CB&I Australia are commencing construction of two 24ML steel reservoirs at Oran Park. To meet critical project milestones, we will be working extended weekend hours between Saturday 2 December 2023 and Sunday 25 February 2024 (inclusive). In addition to our standard work hours, this will involve working between 8am and 6pm Saturday and Sunday, weather permitting.

    Standard work hours

     7am to 6pm Monday to Friday

     8am to 1pm Saturday. We will not work on Public Holidays.


    This work will involve:

     Operation of plant and equipment to support construction of the two steel reservoirs

     Use of welding equipment, hand and power tools to fabricate steel reservoirs

     Crane lifts


    Construction traffic and impacts

    Light and heavy vehicles will continue to enter and exit the site via access off The Northern Road.

    Use of the Southern Access Road off Brundson Road will be avoided during out of hours work where practical.

    Parking of light and heavy vehicles will be confined to the construction site.

    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

     Placing operating plant or equipment away from the southern section of the site where possible

     Prioritise higher noise emitting activities during normal hours wherever practical

    Construction works on the Oran Park site will not occur between Thursday 21 December 2023 through to Tuesday 2 January 2024.


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