Neva - a symbol of St. Petersburg and the only source of drinking water for millions of people in the city and some settlements of the Leningrad region. Unlike most megacities, Petersburg has practically no alternative sources of water supply, in addition to the Neva. But Neva is not only used for the abstraction of water. The majestic River directly discharged wastewater of industrial enterprises and public utilities.
Look these drains may vary from small underwater fountains before leaving on a surface of concrete pipes with a continuously flowing out of them liquid.