Method of identification of biogenous risks originating in mining loads left after the exploitation of sulphide ores or deposits of wastes with a residual content of sulphides (heaps, flooded mining workings). This method allows to prognose a risk of gradual acidification of drainage and percolation waters, which have a negative devastation effect on the surrounding biotope, or eventually ground waters.

This method is used to monitor the qualitative changes in mining drainage waters.