Abstarct: The study area is part of Darab plane that is located in south east of Darab city. Two types of aquifer are observed in the rejoin are hard rock aquifer and alluvial aquifer. To study hydrogeological and hydrogeochemical characteristics of ground water physical and chemical characteristics of ground water were measured in 2 time periods. For all samples the values of Acidity, Temperature and Electerical Conductivity were measured insitue and the concentration of major ions measured in the lab. Moreover to evaluate effect of waste landfill on ground water quality, some samples were sent Canada for measurement of concentration of heavy minerals. The obtained results show that the ground water quality from north of the rejoin that covered by rocks and sediments of high solubility to south of it that covered by Aghajary formation is markedly decreased and type of water change From becarbonated to sulfated and kolorited.It is seen that in areas adjacent to municipal solid waste landfill, the waste landfill polluted the ground water. According to information of piezometers depth of ground water at north of rejoin to south of it change from 30 meter to 90 meter and the trend of ground water current in the north is north-south and at the south part is south east-north west and finally at the center part all water with a east-west trend exit from the rejoin. Water table level in a 16-years period is decreased about 20 meter due to lack of enough precipitation in the rejoin.