The Artificial Recharge of Hashtgerd Plain (NW of Iran)

Abstract: The climate of Iran is arid and semi-arid. One of the regions affected by excessive exploitation of ground water resources is Hashtgerd plain in the north west of Iran. To prevent the ground water level fall _ 2 to 4 m during the past ten years _ the Artificial Recharge Plan is suggested. The water required is provided from the Kordan River which has an average recharge volume of 3.5m/s from February to May. Hydrogeologically, experiment results show that the alluvium has transmissibility of about 3500 m/day, vertical and horizontal hydraulic conductivity of 2 and 14 m/day, and the storage coefficient of 7 % to 9%. To calculate the basin dimensions Houisman, and for the ground water level rise after artificial recharge, Hantush and Todd methods are applied