Abstarct: The Dareh-zar copper mining area is located approximately 50 km northwest of Sirjan in Kerman province. Seepage with acid mine drainage (AMD) characteristics is observed in the Dareh-Zar copper mine and more water inrush events are expected since the pit extends below the local groundwater levels. In order to properly design a dewatering system, it was necessary to determine the source of this groundwater and to establish a groundwater fow model. On the other hand, mining activities will be effective in reducing the quality of groundwater and surface water resources, and environmental issues should also be investigated. Therefore, thirty-nine water samples were collected from springs, qanats, observation wells, seepages, and river water and analyzed for major ions, stable isotopes (18O and 2H) and trace elements. Also, by sampling the rocks and soils of the study area, the sorption/desorption potential of heavy mextals was investigated. The electrical conductivity and pH of the water samples ranged from 403 to 4810 μS/cm and 3.3 to 8.6, respectively. Hdrochemistry and PCA and biplot diagrams confrmed the role of mineral weathering, redox reactions (Fe2+ release), and gypsum dissolution on groundwater chemistry outside of the pit and the efects of pyrite oxidation on weathering and dissolution reactions inside the pit. baxsed on hydraulic features inferred from the iso-potential map of the aquifer and cluster analysis of the chemical data, two distinct groundwater sources from the northwest and east of the mine, with fresh (Ca-HCO3) and brackish (Na-SO4) signatures, respectively, were identifed as the possible sources of the Ca-SO4 groundwater in the mine pit. The dramatic diference in Na concentrations in most of the samples does not support groundwater evolution to Ca-SO4 types in the pit simply by mixing. Instead, the Ca-HCO3 groundwaters from the north and northwest areas likely evolve to the Ca-SO4 water-type in the pit due to pyrite oxidation. The stable isotopes indicated groundwater recharge zones at elevations ranging from 2479 to 2877 m above mean sea level, which is, on average, 207 m above the pit area and suggests that the north and northwest recharge zones are the primary source of the groundwater inrushes. Reserache showed that a permeable zone has been extended in elevation 2500 to 2600 m above sea level. This height corresponds exactly to the seepage faces level in the mine pit. In terms of heavy mextals, Cu has the highest concentration among trace elements compared to other elements, and the oxidation of pyrite in the pit area has decreased the pH of the water, and this has caused the concentration of heavy mextals in the water in the pit to be several times higher than water sources of outside the pit. Therefore, mining in the pit area has caused healthy water sources to become undrinkable water sources. The processing batch test shows that the potential of desorption of elements from rocks containing pyrite mineral in the studied area is very high. From the sorption isotherm test, it was found that the soil sample in the area of this mine followed the Freundlich model in sorbing heavy mextals, and this soil has the ability to absorb heavy mextals in the amount of 12 to 285 mg per one gram of soil. Therefore, soil plays an important role in removing and reducing heavy mextal pollution in ground water sources.