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WSD signs contracts for Ngau Tam Mei Water Treatment Works extension to dovetail with development of Northern Metropolis (with photos)
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     The Water Supplies Department (WSD) today (October 28) signed two contracts with joint ventures formed by China Road and Bridge Corporation and China National Chemical Engineering Group Corporation Limited; and Chun Wo Construction and Engineering Company Limited and China Civil Engineering Construction Corporation respectively to implement package one of the main works of the Ngau Tam Mei Water Treatment Works (NTMWTW) extension. The total value of the two contracts is about HK$7.978 billion. The works commence today and are targeted to complete in about five and a half years.
      
     The Chief Executive's 2025 Policy Address emphasises the acceleration of the development of the Northern Metropolis. Subsequent to the launching of various development proposals in the Northern Metropolis including San Tin Technopole, Hung Shui Kiu/Ha Tsuen New Development Area, Yuen Long South New Development Area, Ngau Tam Mei New Development Area, etc., it is anticipated that the existing NTMWTW will not be able to cope with the increase in water demand by 2031. Under the two works contracts, the water treatment capacity of the NTMWTW will be increased from 230 000 cubic metres per day to 440 000 cubic metres per day so as to cope with the future water demand. Spare space has been reserved for possible further increases of water treatment capacity in the future.
      
     Advanced water treatment technologies will be applied in the expanded NTMWTW, such as use of ultra-violet light to kill 99.99 per cent of pathogens and viruses to enhance drinking water quality, and replacement of the existing multi-deck sedimentation with dissolved air flotation for water treatment to minimise the required footprint. In addition, the operation of the NTMWTW will embrace digital twins and smart elements with a view to saving manpower, electricity and consumables so as to enhance operational efficiency and reduce operating costs.
      
     The WSD will implement smart water strategies for the water supply networks of the Northern Metropolis through the establishment of digital twins for real-time monitoring and scenario simulation, and work together with technologies such as AI for predictive maintenance and dynamic pressure reduction to maintain the health of the water supply networks.
      
     To fully dovetail with the development of the Northern Metropolis, especially the industrial and cooling water demands driven by innovation and technology, the WSD is implementing diversified water resources planning. This includes controlling the potable water demand growth by actively encouraging enterprises to adopt water-saving technologies and to use reclaimed water for non-potable purposes, such as industrial or cooling uses. These efforts aim to provide a stable and cost-effective water supply.
      
     The Director of Water Supplies, Mr Roger Wong, today signed the contracts respectively with representatives of the two joint ventures mentioned above.
 
Ends/Tuesday, October 28, 2025
Issued at HKT 12:30
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The Water Supplies Department today (October 28) signed two contracts with joint ventures formed by China Road and Bridge Corporation and China National Chemical Engineering Group Corporation Limited; and Chun Wo Construction and Engineering Company Limited and China Civil Engineering Construction Corporation, respectively, to implement package one of the main works of the Ngau Tam Mei Water Treatment Works extension. The total value of the two contracts is about HK$7.978 billion. Photo shows the Director of Water Supplies, Mr Roger Wong (third right), with the representatives of the joint venture formed by China Road and Bridge Corporation and China National Chemical Engineering Group Corporation Limited.
The Water Supplies Department today (October 28) signed two contracts with joint ventures formed by China Road and Bridge Corporation and China National Chemical Engineering Group Corporation Limited; and Chun Wo Construction and Engineering Company Limited and China Civil Engineering Construction Corporation, respectively, to implement package one of the main works of the Ngau Tam Mei Water Treatment Works extension. The total value of the two contracts is about HK$7.978 billion. Photo shows the Director of Water Supplies, Mr Roger Wong (third right), with the representatives of the joint venture formed by Chun Wo Construction and Engineering Company Limited and China Civil Engineering Construction Corporation.