Water services are facing increasing strains as populations grow, cities expand and climate change-related problems worsen. An effective water treatment and distribution network is important to ensure that cities are safe from water-borne diseases and flooding.

Sofiyska Voda, the company running Sofia’s water utility, manages everything from the underground pipes, the collection and distribution of water, to daily household use and billing.

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For the last 21 years, the company has had a contract to manage the water supply and treatment for 1.4 million residents. It provides drinking water, general water supplies, and wastewater collection and treatment services. The contract will end in a few years and the city approached the European Investment Advisory Hub to request technical assistance to ensure continuity in water and sewerage services.

As Sofiyska Voda is the only public-private partnership running a water utility in Bulgaria, the lessons learned will also help inform other locations about the potential for public-private partnerships in water services across the country.