Is it working? A look at the changing nutrient practices in Oregon's Southern Willamette Valley Groundwater Management Area

Susanna Pearlstein, University of Alaska Fairbanks, Fairbanks, AK, United States, Jana Compton, Environmental Protection Agency Corvallis, Western Ecology Division, Corvallis, OR, United States, Audrey Eldridge, Oregon Department of Environmental Quality, medford, OR, United States, Alan Henning, U.S. Environmental Protection Agency, Eugene, OR, United States, John Steven Selker, Oregon State University, Biological and Ecological Engineering, Corvallis, OR, United States, J Renee Brooks, U.S. Environmental Protection Agency, Pacific Ecological Systems Division, Corvallis, United States and Donna Schmitz, Benton Soil & Water Conservation District, Corvallis, OR, United States