Samples of surface waters and bottom sediments in the vicinity of a Cu ore flotation waste disposal were twice collected in 2006 and analyzed for heavy metals, inorg. anions, conductivity, suspensions, dissolved O(2), COD and pH by standard methods, except for detn. of NH(3) and SO(4)(2-), NO(3)(-) and PO(4)(3-) ions. The studied waters showed a high salinity degree and a high content of heavy metals. According to the results of speciation anal., the heavy metals accumulated in bottom sediments ore an addul. source of secondary pollution of surface waters.