This study investigated the transport of bacteria through goethite-coated sand, focusing on the effects of coated sand content on the transport of Escherichia coli ATCC 11105. Column experiments was performed in columns (length 30cm, diameter 2.5cm) with varying coated sand contents ranging from 0 to 100%. Results indicate that the mass recovery decreased from 76.7 to 2.7% as the coated sand content increased from 0 to 100%, showing the nonlinear dependency of mass recovery on the content of coated sand. This study demonstrates the importance of the coated sand content in the adhesion of bacteria to goethite-coated sand and furthermore contributes to the knowledge of bacterial removal in positively-charged porous media.