The Selangor government is intensifying efforts to secure a sustainable water supply by developing a new water treatment plant (WTP) and enhancing existing infrastructure. These measures are designed to keep state water reserves above 15% while catering to the increasing demand in Malaysia’s most populous state.
As part of this plan, four additional WTPs are being developed, including Rasau WTP Stage 1 (set for completion in 2026) and Stage 2 (2028), Labohan Dagang Phase 2 WTP (2029), and Langat 2 Phase 2 WTP (2030). Together, these facilities will provide an additional 350 million liters per day (MLD) of treated water.
Selangor’s state water provider, Air Selangor, is implementing a comprehensive 30-year business blueprint to enhance capacity and efficiency. Key initiatives include the replacement of ageing pipes, upgrading pump houses and water tanks, improving water distribution networks, and increasing storage capacity through new reservoirs and ponds. The Water Grid Interconnectivity plan is also being developed to ensure a more robust water supply system across the state.
As part of its long-term strategy, Air Selangor aims to replace 300km of pipes annually, increasing to 400km per year from 2034, with a target of renewing 5,000 km of ageing pipelines by 2040. Additionally, the formation of District Metering Zones (DMZs) will enable better water pressure management, reducing leaks and pipe bursts. In the short term, daily monitoring teams will inspect water leakage within the DMZs and take immediate corrective action, ensuring a more efficient and reliable water distribution system.
(Sources: Selangor Journal; The Star)
