Dr. Boll specializations include teaching in the areas of environmental water quality, hydrology, irrigation and water management, and interdisciplinary methods in water resources. His research involves the eco-hydrology, looking at the processes that the landscape influences the quantity and quality of water available for drinking and the natural environment. Dr. Boll has research projects on water and pollutant transport such as nutrients, micro-organisms, and other chemicals. Field observations are combined with modeling using geographic information systems. His involvement with the Waters of the West program gives him the opportunity to work with other scientists and professionals on integrated water resources analysis of watersheds and river basins in the Pacific Northwest. Internationally, Dr. Boll has projects and collaborations in Costa Rica, El Salvador, Indonesia, The Netherlands, and Chile.