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Izmit Water Supply, Izmit, Turkey

Creative avenues for funding are used to bring a much-needed water supply project to northern Turkey.

Izmit Water Supply, Izmit, Turkey

The Izmit Water Supply project in northern Turkey is the world’s largest privately financed water supply project, and it is the country’s first water build-operate-transfer (BOT) contract. Black & Veatch assisted with obtaining funding for the project.



Managed by Thames Water and designed by Black & Veatch, the facility serves a population of 600,000, which is expected to increase to 1.6 million by the year 2020. Comprising a dam, a 480 million litres per day water treatment plant, pumping stations and 150km of pipeline, the project took 10 years to complete and cost more than $753 million. 

Black & Veatch assisted with obtaining funding for the project, which was financed by loans from Izmit Su AS. The entity is the result of a joint venture between Izmit Municipality, UK-based Thames Water, Turkish contractors Gama Endustri and Guris Insaat, and Mitsui and Sumitomo of Japan.

Designed by Black & Veatch, the process for the water treatment plant follows a conventional flow, comprising aeration, pre-chlorination and chemical treatment. It also encompasses clarification and chlorination, as well as wastewater recovery and sludge treatment.


Black & Veatch can help an organization plan for, finance and set rates appropriately for new projects. By leveraging creative avenues for funding, the project owner was able to deliver on its promise to the public to provide reliable water service.