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10-Hour Water Cut in Several Areas of Colombo Tomorrow

October 22, 2025

The National Water Supply and Drainage Board (NWSDB) has announced that a 10-hour water cut will be implemented in several areas of the Colombo District tomorrow (October 23).

According to the NWSDB, the water supply will be suspended from 10:00 a.m. to 8:00 p.m. due to an interruption in the electricity supply to the Thulumuhuwa pumping station, which provides water to the Ambatale Water Treatment Plant.

The water cut will affect the following areas:

  • Colombo 01–15

  • Battaramulla, Pelawatta, Hokandara, Koswatta, Thalawathugoda

  • Kotte, Rajagiriya, Mirihana, Madivela, Nugegoda, Nawala

  • Kolonnawa, IDH, Kotikawatta, Angoda, Wellampitiya, Orugodawatta

  • Maharagama and Boralesgamuwa

The Water Board advises residents in the affected areas to store adequate water in advance and use water sparingly during the interruption.

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