Is Tap Water in Bangkok Safe to Drink? (2019)

Tap water in Bangkok, Thailand has been verified as clean by World Health Organization standards since 1999. That means the water coming out of the tap is just as clean as water coming out of the valve in Los Angeles, London or Stockholm. Although the water that is provided by the water authority in Bangkok is absolutely drinkable when it leaves the plant, it will usually move through old, and broken pipes before it enters your tap. It is possibly causing the water to be unsafe to drink due to contamination when it comes to your house, building, or hotel.

Bangkok Tap Water

You need to keep yourself hydrated when you are in Bangkok. They recommend that you bring bottled water every time you leave your hotel. Refilling stations are available in Bangkok, where you can get a liter of water cheaper than getting one from a convenience store. In Bangkok as well, the MWA also has free water fountains dotted all over the city that you can use.

Source of Water in Bangkok, Thailand

The sources for drinking water for many Thai citizens are from surface water and groundwater sources. Water in Bangkok comes from two primary surface water the Chao Phraya River and the Mae Klong River. And the largest source of groundwater is in the Lower Central plain surrounding Bangkok and is used to meet the region’s water demands.

The Metropolitan Waterworks Authority started operations on August 16, 1967, under, ACT B.E. 2510(1967) to serve freshwater to Bangkok and other provinces.

They pumped the raw water from water pumping stations passing through the influent channel to the clarification section. Lime is added in controlled quantities to improve water quality and activate sedimentation efficiency during the clarification process. Moreover, Chlorine is added to stop the growth of algae and moss that may cause clarification effectiveness reduction.

Local Convenience Stores in Bangkok

  • Maxvalu Tanjai
  • SPAR Thailand Kanjanapisek
  • 7-Eleven
  • Tesco Lotus Express
  • Konbini Mart
  • Jiduban G Market
  • Lawson 108
  • Mini Big C
  • Vipa Grocery Store
  • Ban Mo Store

Estimated Price of Bottled Water

VolumeTHBUSDEURGBP
1.5-liter ฿17.46 $0.57€0.52£0.46

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