Based on the report, which was drawn up by Basic Water Resources Studies Office of Iran Water Resources Management Company, the water situation of various provinces is classified as critical, severe water shortage, water shortage, water tension, tolerable and normal, and no province could be classified as having a normal situation in terms of water supply. Khuzestan, Ilam, Kermanshah, Lorestan, and Chaharmahal - Bakhtiari provinces are experiencing water tension while other provinces are facing water shortage.