Metropolitan Waterworks Authority

From murky canals to modern marvels. That’s the story of water in Bangkok. We’re standing before the headquarters of the Metropolitan Waterworks Authority (MWA). It’s the heart of clean water for millions. The MWA’s story begins long before this building existed. Back in the late 19th century, King Rama V returned from Europe. He was inspired by their advanced water systems. He saw a stark contrast with Bangkok. Many residents relied on polluted river water. This often led to outbreaks of disease. The King envisioned a healthier future. He ordered the creation of a Sanitary Department. They dug canals to bring cleaner water from the Chao Phraya River. In 1907, after another trip to Europe, the King took further action. He commissioned French experts to design a modern water system. The result was “Bangkok Waterworks”. The first water treatment plant opened in 1914 in the Sam Sen district. It cost over four million baht and took five years to build. Demand soared, outpacing supply. People from the suburbs, lacking access to clean water, would travel to public spigots. Especially during the hot summers, the waterworks struggled to meet the city’s needs. Eventually, the government merged the water systems of Bangkok, Nonthaburi, Samut Prakan, and Thonburi. On August 16, 1967, the Metropolitan Waterworks Authority was born. Today, the MWA serves over two million customers. They draw water from the Chao Phraya River and the Mae Klong Dam. Four treatment plants purify the water. A vast network of pipes, nearly 38,000 kilometers long, distributes it throughout the city. The MWA continues to face challenges, including saltwater intrusion during droughts. They constantly strive to ensure a reliable supply of clean water for this vibrant metropolis. So, next time you turn on the tap in Bangkok, remember the long journey of water. From the vision of a king to the complex system that serves us today, the Metropolitan Waterworks Authority plays a vital role.