TY - RPRT TI - Response of Stream Chemistry During Base Flow to Gradients of Urbanization in Selected Locations Across the Conterminous United States, 2002-04 AU - Lori A. Sprague AU - Douglas A. Harned AU - David W. Hall AU - Lisa H. Nowell AU - Nancy J. Bauch AU - Kevin D. Richards PY - 2007 DO - 10.3133/sir20075083 UR - https://pubs.usgs.gov/publication/sir20075083 ID - sir20075083 ER -