18.10.2026 12:43
According to İSKİ data, the average fill rate in the dams supplying water to Istanbul increased by 14.37 points in 4 days due to the heavy rains that started on October 13, rising from 38.06 percent to 52.43 percent. This rate was the highest level seen in the October 18 data since 53.63 percent in 2018. On the same date last year, the fill rate was 24.51 percent.
The average occupancy rate in the dams supplying water to Istanbul rose by 14.37 points in 4 days, reaching 52.43%, due to the effect of torrential rain seen in record amounts in recent days.
According to Istanbul Water and Sewerage Administration (İSKİ) data, the rains that started in the evening hours of October 13, increased their effect on October 14, and were effective in the following days caused the water level in the dams to rise.
The occupancy rate in the dams supplying water to the city increased by 14.37 points in 4 days, while the average occupancy rate, which was 38.06% on October 14, was recorded as 52.43% as of today.
MOST FULL ELMALI, MOST EMPTY PABUÇDERE
The occupancy rates of the dams were measured as 70.48% in Istrancalar, 36.67% in Terkos, 30.95% in Sazlıdere, 75.03% in Alibey, 30.18% in Büyükçekmece, 66.62% in Ömerli, 75.75% in Darlık, 77.48% in Elmalı, 3.58% in Pabuçdere and 8.08% in Kazandere.
This year, a total of 572.12 million cubic meters of water was taken, including 451.54 million from Melen and 120.58 million cubic meters from Yeşilçay.
The amount of water supplied to the city from drinking water treatment plants this year was calculated as 918 million 22 thousand cubic meters.
The amount of precipitation falling on the dams this year was 876.61 kilograms per square meter.
ON THE SAME DAY LAST YEAR IT WAS 24.51%
According to İSKİ statistics, dam occupancy rates for October 18 were 41.35% in 2016, 52.66% in 2017, 53.63% in 2018, 45.4% in 2019, 32.69% in 2020, 47.58% in 2021, 44.25% in 2022, 21.29% in 2023, 34.38% in 2024, and 24.51% in 2025, while today's rate was recorded as 52.43%.