Water levels in key upcountry reservoirs in Sri Lanka, particularly in the Central Hills, are decreasing rapidly due to dry weather conditions, threatening hydropower generation. The water levels at Castlereagh Reservoir has dropped by 40 feet 10 inches from its spill level, Maussakelle Reservoir water levels have fallen by 26 feet 11 inches and in Kotmale and Upper Kotmale Reservoir too water levels have decreased significantly.