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 and Cecil Park 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 and Cecil Park 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.

  • Kemps Creek construction - we are half way there!

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    We have hit a milestone on the pipeline construction in Kemps Creek, with 50% of the 4.5 km long new water main completed! We would like to thank residents for their patience and cooperation during the construction thus far.


  • Bossley Park and West Hoxton - valve installations

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    Beginning in June, we will be installing a valve on

    • Prairie Vale Road, Bossley Park


    • Quarry Road, Bossley Park and


    • near the intersection Twenty Fifth Avenue and Twenty Sixth Avenue in West Hoxton

    These valves 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 maps below for the exact locations.

    This work will involve:

    • investigating and surveying the area

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

    • installing the cabinet and connecting cabling.

    There will be an interruption to water supply during the final stages of work. Residents will be notified before this occurs.


  • Cecil Hills - installation of electrical cables in May

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    Starting in May, we will begin work to install 3.4km of new underground electrical cable to connect the new pumping station being built in Cecil Hills to the Abbotsbury Zone Substation in Bonnyrigg Heights. We pull the electrical cables through existing underground conduits on Cowpasture Road, Elizabeth Drive, Gloucester Street, Lewis Street, Wilson Road, Simpson Road and Schubert Place.

    From Monday, 10 May 2021, we will start investigating and surveying the area, setting up site facilities, digging pits and using winches to haul cables and we will restore the impacted areas. This will take about two weeks.

    Construction will start on Monday 24 May 2021 and will take two weeks (weather permitting).


    Our work hours

    • 7 am to 6 pm Monday to Friday

    • 8 am to 1 pm Saturday.

    To reduce impacts to traffic, some work may be completed at night. We will notify you before this occurs.

  • Mount Annan - site facility set up and investigation works

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    We will start setting up site facilities for the pipeline construction between between the Narellan South Reservoir and Sugarloaf Pump Station in Menangle Park on Tuesdat 3 May 2021. This will include clearing trees and removing vegetation within 20 metres of our work area. We will also do some investigations and surveying works along the alignment around that time.

    Construction of the pipeline is planned to finished in June 2022 - weather permitting.

    Our working hours are 7 am to 6pm Monday to Friday and 8am to 1pm on Saturdays.



  • Kemps Creek - school holidays construction update

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    We will use the school holidays to install a section of the pipeline in front of Kemps Creek Public School and Christadelphian Heritage College on Cross Street to minimise impact on school traffic.

    We will extend our working hours for this section of the pipeline. Our work hour will be 7 am to 8pm Monday - Sunday (excluding Public Holidays), starting Tuesday 6 April until Monday 19 April 2021 (weather permitting).

    Standard working hours will be re-introduced for the construction of the pipeline along Cross Street towards Western Road.

    There will be changes to local traffic during the construction. A section of Cross Street between Devonshire Road and the end of the school zone will be closed to traffic. A detour will be in place via Devonshire Road, Exeter Road and Western Road. Please follow traffic controllers direction to safely navigate around the work site. Local access will be maintained, but there may be some delays.

    Once the construction near the school is completed, we will progressively close sections of Cross Street between Devonshire Road and Western Road.

    When school returns, there will be a U - Turn facility near the end of the school zone on Cross Street to provide a safe drop-off / pick up point for children.



  • Liverpool Reservoir - extended Saturday working hours

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    We are making great progress on the upgrades to Liverpool Reservoir, where we are building a new pumping station, a new reservoir tank and new pipelines to deliver drinking water services to over 84,000 homes in South West Sydney.

    We are trying to complete the project as soon as possible, so we will be extending our working hours from on Saturdays (8am - 5pm), starting Saturday 10 April 2020 until early 2022.

    We know our work can be disruptive so we will make any effort to reduce impacts to the community by doing noisier work during our standard hours of work during the week and switching off machinery when not in use.

    We have chosen rotary bored piling because it produces lower vibrations than other piling methods, but you may notice some vibrations as piling works continue.

  • Campbelltown South Reservoir investigation starting 6 April

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    We are building a new re-chlorination plant within the Campbelltown South Reservoir site off Karrabul Road, Bradbury. The new plant will improve the management of water quality in the region.

    The re-chlorination plant will be built next to the Campbelltown South Reservoir in Bradbury. One building will be constructed, covering an area of approximately 16 metres by 3.5 metres x 3.5 metres high. This new plant will automate the dosing and monitoring of chlorine into the adjacent reservoirs, which gives Sydney Water better control over water quality for its customers.

    The building will be constructed offsite and delivered as a complete unit to be installed onsite. Construction of the new facility will start later in the year. The building will be painted green to help it blend in with its surroundings. A new access road will be built between the existing site access gate and the tanker receiving area.

    Investigation works will start in early April within the Reservoir site and along Karrabul Road, Greengate Road and Merino Crescent.


    Residents will see increased construction traffic around the Bradbury area, particularly along:

    • Karrabul Road

    • Greengate Road

    We are offering property condition surveys to households directly adjacent to the plant works in the coming weeks. An inspector would take a photographic record of in interior and exterior of your home. Once you have received your letter of offer, contact the ProMac community team to arrange your appointment.

    An assessment of the equipment required to construct the re-chlorination plant has been completed and limits set for vibration to ensure that any vibration generated is below levels that could cause structural damage to a home.


  • Cecil Hills - Lancaster Ave/ Feodore Dr night works

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    Due to forecast wet weather, the work to install a tunnelling pit at the intersection of Feodore Drive and Lancaster Avenue has been re-scheduled to next weekend, weather permitting.

    We will install a section of the pipeline between the reserve off Lancaster Avenue and Feodore Drive by tunnelling underground. This work will include installing a receiver pit at the intersection of Feodore Drive and Lancaster Avenue.

    Part of this work will be done at night and extend our working hours over one weekend to minimise impact to road users during the week.

    Our work hours will be:

    Friday 26 March: 7 pm to 7am (night shift)

    Saturday 27 March: 7 am to 7 pm (extended day shift)

    Sunday 28 March: 7 am to 7 pm (extended day shift)

    The work will include investigation activities, saw cutting the road, digging a pit, pipe installation and temporary restoration of impacted areas. During these extended hours, we will also be accessing our compound in Pye Hill Reserve for deliveries and to collect materials to transport to the worksite. Trucks will access this compound along Prince Close

    Traffic changes

    Between 7pm Friday 26 March and 7pm Sunday 28 March, we need to close a section of the westbound lane along Feodore Drive near the intersection of Lancaster Avenue to install a pit. All traffic will share the use of the eastbound lane along Feodore Drive, managed by traffic controllers. Motorists may experience some delays. During this time, a section of the footpath around Doujon Lake (between Amelia Close and Feodore Drive) will be closed. Please see map below for locations of these closures.

    Traffic controllers will be in place to safely assist vehicles and pedestrians around our work areas.


    Road works on Sandringham Drive

    Liverpool City Council is widening the road on Sandringham Drive. Enquiries about this work can be directed to Council’s customer service team on 1300 362 170

  • Kemps Creek - Traffic changes during nightworks at Cross St/ Devonshire St

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    A section of the 4.5 km of new water main in Kemps Creek will need to be installed at the intersection of Cross Street and Devonshire Road.

    We will do this work at night to minimise the impact to road users at this busy intersection.

    Night work will take place for a period of up to 10 nights between Sunday 14 March and Thursday 8 April from 8 pm to 5 am.

    Traffic changes

    The intersection of Devonshire Road and Cross Street will be closed while we do this work. A detour will be in place via Elizabeth Drive, Western Road and Exeter Road. Traffic management will be in place to safely direct vehicles and pedestrians around the work site. Local access will be maintained, however there may be some delays. Please see map for more details.


    Following this, installation of the pipeline will continue west along Cross Street in front of Kemps Creek Public School and Christadelphian Heritage College. We will complete this work during the school holidays to minimise the impact to school traffic.



  • Cecil Hills - construction begins in Balmoral Circuit

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    Construction of the 1.95km of new water main through Cecil Hills is progressing and from Thursday 11 March 2021, we will be starting construction in Balmoral Circuit, which will be completed in two stages:

    1. from Mey Close to Angela Street
    2. from Angela Street to Lancaster Avenue

    Work will include tree trimming and removal, digging in the grass reserve, footpath and road, installing the new pipe, connecting the new pipe to the existing network and restoring the impacted areas.

    Working hours

    Our working hours will be from 7 am to 6 pm Monday to Friday and 8 am to 1 pm on Saturdays. We will not work on Sundays or public holidays.

    Traffic changes

    There will be a road closure of Balmoral Circuit as we work in each section (see map below). Detours will be in place and traffic controllers will assist pedestrians and vehicles. Resident access will be maintained, however there may be some delays.



Page last updated: 21 January 2022, 10:16