Headline: Greater Colombo Faces Severe Water Crisis as Reservoirs Deplete 📈

Source

• Current Crisis Levels The National Water Supply and Drainage Board (NWSDB) reports a rapidly tightening water balance. The Labugama reservoir is estimated to last only 50 days, while Kalatuwawa has just 20-22 days of supply remaining based on current consumption. • Impacted Regions Extensive water cuts exceeding 12 hours daily are affecting Padukka, Homagama, Maharagama, and Piliyandala. The crisis stems from a mismatch between infrastructure built for 120,000 people and a modern population of over 2 million. • System Vulnerabilities Source Imbalance: The Ambatale plant provides 550,000–590,000 m³ daily from the Kelani River, but remains highly vulnerable to salinity intrusion. Demand Gap: Daily urban demand fluctuates between 600,000 and 800,000 m³, leaving the system with minimal reserve capacity during dry spells. Climate Stress: Prevailing El Niño conditions have significantly reduced inflows to rain-fed reservoirs. • Proposed Strategic Solutions Infrastructure: Urgent need for a permanent gated salinity barrier at Ambatale and expanding off-stream storage. Integration: Utilizing surplus renewable energy (solar) to pump water into reservoirs, effectively creating a "water battery." Policy: Development of a National Urban Water Security Master Plan to integrate water, irrigation, and energy sectors. _Note: Figures based on provisional data and NWSDB estimates._

Listen to this article

Duration: 1:42