- Manages water production, distribution, and infrastructure for over 12 million residents across Bangkok and surrounding provinces.
- Operates advanced water quality monitoring systems to ensure compliance with national and international safety standards.
A pillar of urban water resource management
Established in 1967, the Metropolitan Waterworks Authority (MWA) serves as Thailand’s principal public agency responsible for delivering potable water to Greater Bangkok. The organisation oversees a vast network of treatment plants, pumping stations, and pipelines spanning over 30,000 kilometres. Its daily production capacity exceeds 5.8 million cubic metres, sourced primarily from the Chao Phraya and Mae Klong rivers. Rigorous purification processes, including sedimentation, filtration, and chlorination, are employed to meet the World Health Organisation’s guidelines. MWA also prioritises leakage reduction through smart metering and pressure management systems, achieving a non-revenue water rate below 15%—a benchmark for urban utilities in Southeast Asia.
Collaboration with academic institutions and environmental agencies underpins MWA’s research into climate resilience, particularly addressing saltwater intrusion and fluctuating demand during droughts. Public transparency is maintained via annual water quality reports accessible through its customer portal, alongside real-time service updates via a dedicated mobile application.
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Balancing demand with environmental stewardship
MWA faces dual challenges of rapid urbanisation and ecological preservation. Its 2020–2030 strategic plan emphasises sustainable extraction practices, including aquifer recharge projects and wastewater reuse initiatives. Community outreach programmes educate households on conservation, complemented by tiered pricing to discourage excessive consumption.
The agency has also invested in renewable energy to power facilities, reducing its carbon footprint by 8% since 2019. Partnerships with the Bangkok Metropolitan Administration aim to integrate water management with broader urban planning, such as green spaces designed for stormwater absorption. Looking ahead, MWA seeks to expand coverage to informal settlements while piloting AI-driven predictive maintenance for ageing pipelines—a critical step in safeguarding service continuity for future generations.
