A Study of Biofouling and Pathogen Transport in the Subsurface aims to raise understanding of factors that have commonly caused or contributed to biofouling and pathogenic contamination of water wells. It presents a detailed analysis of the impact of biofilm growth on the properties of a two- dimensional bench-scale sand aquifer system, using CCD imaging and computational modeling technologies. It also investigates and analyzes transport, survival, and persistence of E. coli O157: H7 in both clean and biofilm-impacted environments. Operators, managers, engineers, microbiologists, regulators,...