Heavy Rains Boost Taiwan Reservoir Levels, Zengwen Nears 55% Capacity

Taiwan's western regions are experiencing continuous heavy rainfall due to an approaching front and moisture drawn in by Typhoon Mikala. The downpour has led to a substantial increase in water levels across several key reservoirs, easing concerns about water supply.

The nation's largest reservoir, Zengwen Reservoir, saw its water storage rate reach 54.5% as of 7 a.m. on June 27, 2026. This translates to a total of 245.13 million tons of water. The reservoir's catchment area stations, such as Longmei and Lijiia, recorded over 300 millimeters of cumulative rainfall between June 25 and June 27, contributing significantly to the current water volume.

Meanwhile, the Lantan and Renyi Tan reservoirs, which are crucial for the water supply in the Chiayi area, have also seen their storage rates climb. Lantan Reservoir's water storage rate is at 72.56%, holding 6.67 million tons. Renyi Tan Reservoir's rate has steadily increased, reaching 79.08% by Thursday morning, with 19.44 million tons stored, and is expected to surpass 80% soon. The article notes that Chiayi continues to experience rainfall, further boosting reservoir levels.