The 2026 floods killed 31 people and affected 4.14 million across 26 provinces. As the water recedes, a second problem is coming to light: factories and waste facilities that were not ready for flooding released oil, leachate, and wastewater into communities and rice fields. For companies operating in Thailand, the lesson is clear. Flood readiness is an environmental and legal obligation, not only a matter of protecting equipment.

 

A Second Disaster Behind the Flood

Heavy rain beginning September 16 flooded almost every region of Thailand. By October 5, the Department of Disaster Prevention and Mitigation (DDPM) had reported 31 deaths and 4.14 million people affected in 26 provinces. The Federation of Thai Industries (FTI) estimated total economic losses at close to US$2 billion, and at least 34 factories were inundated when a levee failed at Amata City Chonburi Industrial Estate. As early as September 28, the FTI urged flooded premises to tighten controls on chemicals, oil, wastewater treatment systems, and industrial and hazardous waste to avoid harming nearby communities and the environment.