Lake Vrutak is artificial reservoir on the Trebià ¡njica river in Popovo Polje, near Hutovo village, Bosnia and Herzegovina. The lake serves as compensation and storage basin for Pump-Storage Hydroelectric Power Plant "ÃÂapljina".
Lake Vrutak is the last and smallest of three artificial reservoirs in hydroelectric power plant system Trebià ¡njica - HES "Donji Horizonti", and serves as compensation basin for Pump-Storage Hydroelectric Power Plant "ÃÂapljina". Other two being BileÃÂko Lake, the first and largest, and flow-regulation (compensation) basin Trebinjsko Lake just upstream of Trebinje.