Abstract: in this paper, the dynamic flow systems and transport of contaminants in karstic aquifers are presented. Some conclusions are reached from the analysis of physical and chemical processes involving aqueous systems containing certain contaminants, Pertinent mathematical and chemical equations for these complicated processes are discussed. Contaminant transport in Karstic aquifers can be mathematically expressed by the basic equations evaluated primarily for the flow in porous, highly permeable aquifers. The e...