The rivers Syan and Western Buh,within the water intake basins of which the works of wastes utilization will be done, are right tributaries of the Wisla.
The Wisla is the longest river of the basin of the Baltic sea and Poland. It is formed in the result of merging of the Black and the White Wisla which begin in the Western Beskids. .It falls into the Gdansk bay. Its length is 1090 km, the area of the basin is 139.9 thousand km². The main tributaries are as follows: the Dunajec, the Syan, the Wepr, the Western Buh (right tributaries), the Nida (river), Pylytsia, the Baura (left tributaries).