Investigation of a Water Body Status to Select Priority Actions on Ecological Rehabilitation (the Volchikha Reservoir as a Study Case)

The article presents the outcomes of an applied research within frameworks of testing of «Manual on the choice of priority actions aimed at the water bodies' ecological rehabilitation» developed in RosNIIVKh. The research has been carried out on the Volchikha reservoir located in Sverdlovsk Oblast. In accordance with the developed methods, we have studied the water body hydro/chemical regime formation with taking into account all affecting factors and assessed all the factors that affected the reservoir hydro/biological and hydro/chemical regimes' formation. We have determined the pollutants' and biogenic substances flows, and assessed the water body trophic status against the hydro/biological indicators and identified the anthropogenic pollution sources. Considerable quantities of heavy metals and biogenic metals have been found in the water body waters, due to the anthropogenic activities' impact. The authors have identified a method for the Volchikha Reservoir ecological rehabilitation based on the outcomes of the conducted researches.