Contaminant hydrology is the study of processes that affect both ground and surface water pollution. It draws on the principles of hydrology and chemistry. Contaminant hydrology and water quality research in the Department of Soil, Water, and Climate seeks to understand the role of soil properties and hydrologic processes on ground and surface water pollution and develop strategies to mitigate their impacts. Research is done at all scales varying from soil pore to basin scale and covers both traditional and emerging contaminants. Recent projects include fate and transport of veterinary pharmaceuticals from land-applied manure, pathogen losses from manure application, fate and transport of the new strourlibun fungicides, impacts of tile drainage on sediment and nutrient pollution in the Minnesota and the Mississippi Rivers, sediment-turbidity relationships, water quality modeling, and TMDL and paired watershed studies.