Construction Packages

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The construction of Langat 2 – Phase 1 works is divided into many sub packages including Package 2A Construction of Treatment Plant which has been started in 2014. It is targeted to complete the overall Phase 1 works by end 2019.

Langat 2 Scheme

Water Treatment Plant Works

Pakej 1B: Paip Air Mentah dari Terowong Projek Air Mentah Pahang-Selangor ke Loji Rawatan Air Langat 2 dan Paip Terawat dari Loji Rawatan Air langat 2 ke Kolam Air Imbangan Hulu Langat

  • Raw Water Inlet Connection Chamber at the PSRWT Tunnel Outlet Portal at the end of the PSRWT Tunnel, at a location approximately 2 km from Hulu Langat town centre.
  • Raw water bulk transfer pipelines from the Raw Water Inlet Connection Chamber to the Langat 2 WTP – It consists of four (4) nos. 3000 mm dia. Raw Water Gravity Mains from the Raw Water Outlet Connection Chamber to the Langat 2 WTP to convey raw water from the PSRWT Tunnel to the WTP. Two (2) nos. will be for the Phase 1 WTP and the remaining two will be for Phase 2 WTP. Each main will connect to one Stream of the WTPs.

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Pakej 2A : Construction and Completion of 1130 MLD Langat 2 Water Treatment Plant

    • A total water treatment flow capacity of 2260 MLD comprising two (2) equal phases of 1130 MLD each namely Phase 1 and Phase 2.
    • Current construction is for Phase 1 works that will be developed in two (2) streams of 565 MLD each.

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Northern Corridor Treated Water Bulk Transfer Works

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Pakej 6 : Paip Air Terawat Utama dari Kolam Air Ampang ke Kolam Air AU3

  • 10,046m length of 1500 mm dia. treated water gravity main from the Ampang Reservoir to AU3 Reservoir;

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Pakej 7 : Kolam Air Imbangan Hulu Langat Berkapasiti 92 Juta Liter

  • o Hulu Langat Balancing Reservoir 1 no. x 92 Ml with 125.0m LSD top water level

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Pakej 9 : Kolam Air AU3 Berkapasiti 28 Juta Liter

  • AU3 Reservoir 28 Ml with 105.0 m top water level; and
  • Associated 30 m length of 1500 mm dia. inlet pipe Status – Under construction

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Western Corridor Treated Water Bulk Transfer Works

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Pakej 4 : Kolam Air Imbangan Bukit Enggang Berkapasiti 210 Juta Liter

      • Bukit Enggang Balancing Reservoir 1 no. x 210 Ml with 114.0 m top water level; and,
      • Its associated 2 nos. 1900 mm dia. treated water pumping mains connecting between Treated Water Pumping Station at the Plant and Bukit Enggang Balancing Reservoir

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Pakej 5 : Paip Air Terawat Utama dari Kolam Air Imbangan Bukit Enggang ke Kolam Air Langat Sedia Ada dan Air Terawat Utama dari Loji Rawatan Air Langat 2 ke Kolam Air Imbangan Hulu Langat

      • 4242m length of 2000 mm dia. treated water gravity main from Bukit Enggang balancing reservoir to the Existing Langat reservoir
      • 4425m length of 1750 mm dia. treated water pumping main connecting between Treated Water Pumping Station at the Plant and Hulu Langat Balancing Reservoir.

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Pakej 10 : Paip Air Terawat Utama dari Kolam Air Imbangan Bukit Enggang ke Lebuhraya Sg. Besi

      • 13,000 m length of 2,500 mm dia. treated water gravity main from Bukit Engang Balancing Reservoir to Sg. Besi Highway

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Pakej 11 : Paip Air Terawat Utama Dari Lebuhraya Sg. Besi ke Kolam Air Sedia Ada Bukit Dengkil

      • Treated water gravity main from Sg. Besi Highway up to existing Dengkil reservoir consists of the following components:
        -3,350 m length of 2500 mm dia.
        -4,600 m length of 2400 mm dia.
        -4,850 m length of 1950 mm dia.
        -800 m length of 1400 mm dia.

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Pakej 12 : Kolam Air Sg. Besi Berkapasiti 22 Juta Liter

      • Sg. Besi Reservoir 22 ML with 96.0 m LSD; and,
      • 200m length of 800 mm dia. treated water gravity main tee-off to Sg. Besi reservoir

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