SANITATION SYSTEMS AND ENVIRONMENTAL PROTECTION ACTIVITIES IN ISTANBUL CITY SANITATION SYSTEMS AND ENVIRONMENTAL PROTECTION ACTIVITIES IN ISTANBUL CITY.

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SANITATION SYSTEMS AND ENVIRONMENTAL PROTECTION ACTIVITIES IN ISTANBUL CITY SANITATION SYSTEMS AND ENVIRONMENTAL PROTECTION ACTIVITIES IN ISTANBUL CITY Dursun Ali ÇODUR ISKI General Director Dursun Ali ÇODUR ISKI General Director

The Bosphorus

Rumeli Castle

Istanbul Water and Wastewater Administration ISKI ISKI is the public operator for the water and wastewater services in Istanbul Metropolitan Area. Provide services for population of 12 million. Total area served 6,504 km 2. Provides water and wastewater services for 246 municipalty. 3.7 million contractual customers. Total length of water network is km. Total length of sewage system is km. Average of daily water supply is m 3 /day. Average of daily treated wastewater is m 3 /day. Number of staff is 6.191

Infrastructure and sanitation problems due to fast growing population and rapid urban development. Delayed infrastructure investments because of wrong planning, wrong selection of the priorities and corruptive practices. Incompleted wastewater collection and disposal systems. Nearly all wastewater of Istanbul was discharged into sea, rivers and water resources. Insufficient wastewater treatment capacity. Only about 10% of discharged wastewater treated. Sanitation Services of Istanbul in early 1990’s

Sea water pollution and unpleasant odours. The sea water ecosystem specially in Golden Horn was seriously damaged as a result of wastewater discharges. Closing down of beaches and “Forbidden to Swim” signboards. Pollution threat of drinking water resources and catchment basins. The sea water transportation in the Golden Horn was totaly abondoned. The tourism activities was effected badly. Consequently loss of jobs and economy. Sanitation Services of Istanbul in early 1990’s

Investments for Sanitation Services following the year 1994 Construction of 9 Wastewater Treatment Plants. (4 Biological and 5 Primary Treatment) Construction of 17 wastewater pumping stations. Construction of 54 km tunnel interceptor systems. Construction of 762 km interceptor and collectors systems. 16 km marine outfall. Sea Water Quality Monitoring Studies conducted in cooperation with several Universities. Wastewater treatment and disposal strategies based on the water quality studies. Pollution levels of the sea water is measured at 45 stations for 40 different parameters. Advanced technologies are used in wastewater operational services, robot technology and pipe-jacking.

Location of Wastewater Treatment Plants and interceptors Tuzla Kadıköy Paşaköy Üsküdar Terkos KüçüksuBaltalimanı Yenikapı Ataköy K.Çekmece B.Çekmece Existing Under Construction Planned Paşabahçe Ataköy Ambarlı Bahçeşehir Çanta

The percentage of the treated wastewater has risen from 10% in 1994 up to 85 % in Water resources are saved by applying advanced treatment techniques. Significant improvements in coastal water quality and odour problems. 138 km out of 284 km of Istanbul coast are available to swim by blue flag criterias. Major Environmental gains and improvments

With the improvements in sea water quality, Istanbul seasides once again attracts tourism and sea sports. Means of beach holiday for people with less income without travelling. Major Environmental gains and improvments

Financials aspects Water consumers pay for all water supply and sanitation systems. The water tarifs are about; House-1 (1-30 m3): 1,12 $/m 3 House-2 (31 and plus) : 2,24 $/m 3 Commercial : 2,24 $/m 3 Total investment of 3 billion $ (US) in sanitation systems since The total budget of 2006 is about 1,282 billion $ (US). The investment budget of 2006 is about 778 million $ (US). Total investment on water, wastewater and stormwater projects up to 2032 is estimated 10 billion $ (US).

In past years due to wrong city planning, Golden Horn was turn into an industrial region. When came to 1985, about 700 industry places and over 2000 office were established already.

It was impossible to approach the Golden Horn because of pollution and unpleasant odors.

Golden Horn was begun to pollute in a short period because of industrialization.

Haliç Wastewater formerly discharged direct into the Golden Horn is collected and transferred to treatment plants. The sludge that had accumulated in the course of time was dredged and collected in a convenient place. Rehabilitation of the Golden Horn and its environment.

As the result of the total Investment of 653 million $, today; 33 species of fish are living in Golden Horn and the extinct seahorse also live in Golden Horn. Sea transport, which had stopped 20 years before, has restarted. International Boat Races are organized in the Golden Horn The Golden Horn Environment Protection Project was awarded First Prize in 2002 “Metropolis Award”