On June 12-16, 2017, the Eleventh International Congress and Technical Exhibition “ETEVK-2017″ (Ecology, technology, economy, water supply, sewage) took place in the city of Chernomorsk, Odesa region. Plenary session opened with a welcoming speech Mayor Chornomorsk Valery Khmelnyuk . During the congress, platforms and roundtables discussed the most pressing issues in the field of heating, water supply and drainage, the solution of which depends on overcoming the crisis in these sectors and their further sustainable development. Also no less important issues were considered regarding waste management, energy saving, development of modern technologies, materials, reagents, equipment, obtaining funds from international financial organizations, and others. The draft resolution of the Congress can be found at the indicated links (there is an opportunity to leave a comment). Simultaneously with the XII International Congress “EETVK-2019″ (Ecology, Heat Supply, Energy Saving, Water Supply, Sewage) a Technical Exhibition was held, in which the latest samples of technological equipment were presented, modern software complexes for the management of systems, both Ukrainian and foreign firms, and organizations. Detailed information about the exhibitors is available at the Exhibitions catalog.