Pollution potential assessment of Baghmalek plain groundwater with use of AVI method, GOD and DRASTIC models in GIS media

One of the quality management methods of groundwater resources is assessment of pollution potential, where with regard to that the boundary of groundwater resources quality is being determined, and proper management for land efficiency in touch with aquifer could be applied. In present investigation, with regard to permeability of recharge zone in dominant part of the Baghmalek plain and use of considerable amount of agricultural fertilizers, pollution potential of groundwater has been assessed. In order to evaluate the pollution potential of groundwater in the area, AVI method, GOD and DRASTIC models have been taken into account. The collected results has indicated that in spite of sedimentary surfacial coarse grain distribution in relatively vast part of the area, the pollution potential is low in major parts of the area under investigation. The main influential factor for low pollution potential in tremendous part of the area is the fine and relatively thickness of vadose zone.