HULU LANGAT, Aug 20 — The Langat 2 Water Treatment Plant (WTP) project has received seven Malaysia Book of Records (MBOR) recognition, cementing its position as one of the most hi-tech WTPs in the nation in terms of expertise and modern technology.
Pengurusan Aset Air Bhd (PAAB) chairman Dato’ Seri Jaseni Maidinsa said that throughout the construction of the megaproject, PAAB obtained seven MBOR recognitions over three straight years, from 2023 to 2025.
He said that in 2023, an MBOR recognition was received for its 11 packages involving microtunnelling works across five main transport networks in the Klang Valley — the Kuala Lumpur-Seremban Expressway, Phase 2 of the elevated MRT route, the Keretapi Tanah Melayu Bhd (KTMB) rail line, Express Rail Link (ERL) line, and Sungai Besi Expressway (Besraya).
“Though this, PAAB succeeded in gaining two MBOR recognitions: Malaysia’s longest water microtunnel at 331.5m and Malaysia’s deepest water microtunnel with an average depth of 25.2m.
“In 2024, PAAB received two more recognitions through the 6A package, which were Malaysia’s longest dual-purpose treated water tunnel, and Malaysia’s longest twin treated water tunnels, with diameters of 3.2m and 2.2km, respectively.
“In May 2025, the success of our engineering team led us to three more national records through the third package, which were Malaysia’s first wastewater conveyor pipe system, Malaysia’s longest wastewater conveyor pipe system (1.92km), and Malaysia’s longest ‘shaftless’ screw conveyor system (46m),” he said at the launch of the Langat 2 WTP, officiated by Prime Minister Datuk Seri Anwar Ibrahim, here today.
Earlier, Anwar launched the WTP, which will supply clean water to around 350,000 accounts (1.87 million consumers) in Kuala Lumpur, Selangor and Putrajaya.
With a capacity of 1.13 billion litres per day, the Langat 2 WTP channels raw water from Kelau Dam through the Sungai Semantan intake in Pahang, which is channelled through a 44.6km tunnel across the Titiwangsa Range.
