Tropical storm “Wipha” has caused severe disruptions to the tap water systems in many areas of Thailand. Source water has become 3–5 times more turbid than normal due to runoff carrying large amounts of sediment and agricultural chemicals into the system. This has significantly slowed down the filtration process in water treatment plants and increased the need for chemical treatment.
In some areas, the filtration systems are not operating at full efficiency. Meanwhile, power outages and damaged pipelines caused by flooding have raised the risk of contaminated water and pathogens entering the supply system. Residents in affected areas are advised to boil water before drinking or to use bottled water from reliable sources to ensure safety.
The Department of Health has issued a public warning for affected communities to be cautious about waterborne diseases. A 15% increase in diarrhea cases has been reported in flood-hit areas. Cholera and hepatitis A remain silent but dangerous threats that can spread rapidly during floods. Additionally, there has been a rise in skin infections, especially among vulnerable groups such as young children, the elderly, people with weakened immune systems, and pregnant women.
Authorities are working to restore tap water systems and enhance water quality control measures, such as increasing chlorine levels and conducting daily water source inspections. It is expected that water quality will return to normal within 2–3 weeks.
© HWAPPU ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO., LTD 2025. All rights reserved. We reserve the right to make any final changes to this announcement.
