ECONOMYNEXT – Water supply to parts of Sri Lanka’s Western Province have been restored, the National Water Supply and Drainage Board said, after tests confirmed that the water quality was safe and in compliance with prescribed quality standards.
On August 24, at around 11.30 pm, the National Disaster Management Center had received a notification that a chemical substance had been released into the Kelani river from a private factory located near the Ambatale and Biyagama treatment plants.
Water supply activities at both plants were temporarily suspended immediately upon receipt of the notification, NWSDB said.
“Thereafter, formal laboratory tests were conducted to ascertain whether any impurities or chemicals had been mixed into the water of the Kelani River.”
Water supply resumed at around 4.30 am on August 25, following the recommendation of the Disaster Management Center and in coordination with the relevant security forces.
“Water supply has now been restored and water quality is being continuously monitored to ensure the safety of consumers.”
The National Disaster Management Center and relevant security forces are investigating the incident.
Water samples are being tested regularly to continuously monitor water quality by the National Water Supply and Drainage Board. (Colombo/Aug25/2026)
