The subject of repellent soil has been of important to researchers due to the global warming and increase of droughts. Water repellency has many effects on soil hydrology, and the processes of movement, translocation, traort, and immobilization of pollutants through soils. On the other hand, human activities particularly in agriculture setting are the main source of soil and water bacterial pollutions. Traort and fate of bacteria, therefore, has always been important to researchers as well. However, information how bacteria traort is in the repellent soils are scanty. Thus, understanding of the involved processes of bacteria traort through repellent soils will help us to apply proper management strategies in bacteria pollution problems. In this study, first, the effects of water repellency phenomenon on basic and hydrophysical properties of two distinct wettable and repellent soil profiles (0-60 cm), and in the following traort of Escherichia coli and Rhodococcus erythropolis in the wettable and repellent soils using disturbed columns (18.6 cm height and 7cm diameter) in four types of soil samples (wettable-sand, repellent-sand, wettable soil, and repellent soil) were investigated. Leaching was done to 8 pore volumes in saturated and unsaturated (-5 cm) using an infiltrometer and injection of 62 ml bacteria and Bromide on the top of the columns. The results showed that basic and hydrophysical properties were influenced by the type of soil and depth. The variations of MWD, OM, qv as basic physical and, Sw , Se , Sww , Swh , WDPT, RI c , RI m as hydrophysical properties were more influenced by water repellency through the repellent soil compared to the wettable soil. The modified water repellency index ( RI m ), and water repellency cessation time (WRCT), as new approaches were evaluated to detect persistence and severity of water repellency. The results of bromide and bacteria study revealed that traort of Escherichia coli and Rhodococcus erythropolis through wettable and repellent soils were different. The data indicated in the first pulse when the soils were dry, traort of bromide was govern by water repellency while it was influenced by water flow characteristics in the second pulse. Maximum concentrations of bromide was seen in the first samples of all effluents (regardless of soil, water flow and bacteria type), but this result was not found neither for Escherichia coli nor Rhodococcus erythropolis . Comparison of data proved traort of bacteria through soils is possible in both saturated and unsaturated water flow conditions even if the initial condition of soil is air-dried. Type of soil had very important role in controlling and moving fronts of bacteria. Straining and blocking were the important processes in the retention of bacteria but their efficiency were different based on bacteria strain, soil type, the water content, and the flow conditions. Generally, Escherichia coli was more retained in the soil columns compared to the Rhodococcus erythropolis . As soils were wetted, water flow was uniformly distributed through columns and maximum pollution fronts of bacteria by a less concentration compared to the air-dried status reached effluents. Biological and electrokinetics properties (zeta potential, hydrophobicity, surface charge, size and shape) of bacteria and furthermore, interaction energies between bacteria and porous media were important in retention of bacteria. Retention shapes of bacteria in the studies soils were uniform and exponential. Simulation of bacteria traort and retention were just possible for the wettable and repellent sands in the saturated flow condition using HYDRUS-1D. Finally, the roles of wettability and non-wettability of sand media and also hydrophobicity and hydrophilicity of bacteria were reflected in the traort parameters fitted using attachment and detachment model. Further studies are needed to quantify the traort parameters of bacteria using 3D (i.e. HYDRUS-2D/3D) modeling with regards to initial air-dried condition of real soil. Keywords: Repellent soil, wettable soil, E. coli , Rhodococcus erythropolis , unsaturated flow, water pollution, vadose zone, transient water.