Isotopic and Hydrochemical Investigation of Surface-Spring Water Dynamics in Urbanized Catchment, Portland, Oregon, USA

Michael Harrison1, Michael Tchintcharauli-Harrison2, J Renee Brooks3, Mary V Santelmann2 and Roy Haggerty4, (1)Oregon State University, Corvallis, United States, (2)Oregon State University, Corvallis, OR, United States, (3)U.S. Environmental Protection Agency Corvallis, Western Ecology Division, Ecological Effects Branch, Corvallis, OR, United States, (4)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States