The whole territory of Transcarpathia is the header of Tysa river pool (affluent of the Danube) which rises in the mountain forests in Rakhiv district (Bila and Chorna Tysa rivers). Tysa stretches about 220 km along the territory of Transcarpathia. Borzhava, River, Tereblya, Teresva, Chorna and Bila Tysa are the affluents of Tysa river, and waters of Latorycya and Uzh also fall into Tysa outside Ukraine first being formed on the territory of the region and having fallen into the rivers of Laborets and Bodroh.
Lakes, ponds, storage pools are 137 in number (32 of them are alpine lakes) but they do not play a significant role in the regional water balance. The largest lake of the region is Lake Synevir (“Marine eye”, area – 7 hectares) located on 989 m over the sea altitude. All mountain lakes of Transcarpathia are very exotic with clean and clear waters and surrounded by rich vegetation. These are unique ecosystems which are of great cognitive and recreational value.
Underground fresh waters, the prognosis supply of which makes 400 million of cubic meters in Transcarpathian region, 124 million cubic meters of them are ratified supplies per year (about 340 thousand cubic meters a day), as these waters are the cleanest ones they are very important for drinkable water-supply.
Source: Magazine “Transcarpathia” № 2 summer/autumn 2010