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Back|Dam occupancy rates in Istanbul decreased to 42.06%
Dam occupancy rates in Istanbul decreased to 42.06%
Developing
Cumhuriyet·1 hour ago·Environment·1 min read·🇹🇷Türkiye·

Dam occupancy rates in Istanbul decreased to 42.06%

Quick Look

  • According to İSKİ's statement dated September 6, 2026, the general average occupancy rate of dams that meet Istanbul's water needs dropped to 42.06%.
  • There was a significant decrease from 58.68% in mid-July.
  • While the Ömerli and Elmalı dams on the Anatolian Side carry most of the city's water load, the dams in the western basins on the European Side have fallen below critical levels.

AI-generated summary

Why It Matters

Istanbul's water needs are largely met by the Ömerli and Elmalı dams on the Anatolian Side. High temperatures and increased water consumption during summer months affect dam levels.

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In its updated statement, Istanbul Water and Sewerage Administration (ISKI) shared the recent change in dam occupancy rates in Istanbul. So, what is the occupancy rate of Istanbul dam on September 6, 2026?

CURRENT DAM OCCUPANCY RATES 6 SEPTEMBER 2026

According to the official data shared by İSKİ as of Sunday, September 6, 2026, the general average occupancy rate of the dams that meet Istanbul's water needs has decreased to 42.06 percent. The fact that the general average, measured as 58.68 percent in mid-July, entered a rapid downward trend with the beginning of September, clearly reveals the high evaporation and increased water consumption caused by summer heat.

While the Ömerli and Elmalı dams on the Anatolian Side continue to bear the city's water load, the occupancy rates in the western basins such as Istrancalar, Pabuçdere and Sazlıdere on the European Side have fallen below critical levels.

6 SEPTEMBER 2026 DAM FULL RATES

According to İSKİ's latest hydraulic measurements dated September 6, dam-based occupancy rates are as follows:

Ömerli Dam: 59.09 percent

Darlık Dam: 61.03 percent

Elmalı Dam: 70.23 percent

Terkos Dam: 37.14 percent

Alibey Dam: 40.85 percent

Büyükçekmece Dam: 30.18 percent

Sazlıdere Dam: 23.37 percent

Istrancalar Dam: 26.45 percent

Kazandere Dam: 16.05 percent

Pabuçdere Dam: 6.61 percent

Open Questions

  • ?How long will this decline last?
  • ?Will water precautions be taken?
  • ?What is the most critical level of dams?

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This article was originally published by Cumhuriyet.

Quick Look

  • According to İSKİ's statement dated September 6, 2026, the general average occupancy rate of dams that meet Istanbul's water needs dropped to 42.06%.
  • There was a significant decrease from 58.68% in mid-July.
  • While the Ömerli and Elmalı dams on the Anatolian Side carry most of the city's water load, the dams in the western basins on the European Side have fallen below critical levels.

AI-generated summary

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Global impact
Local
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Developing
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Cumhuriyet
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Published
1 hour ago
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İSKİ
Istanbul dams
water consumption
İSKİ
Istanbul Water and Sewerage Administration
Istanbul
Anatolian Side
European Side
Ömerli Dam
Istanbul dams
water consumption
dam occupancy rate
September 6, 2026
Ömerli Dam
Elmalı Dam

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