References Cited


Capel, P.D., Hamilton, P.A., and Erwin, M.L., 2004, Studies by the U.S. Geological Survey on sources, transport, and fate of agricultural chemicals: U.S. Geological Survey Fact Sheet 2004–3098, 4 p. (Also available at https://pubs.usgs.gov/fs/2004/3098/.)


Capel, P.D., McCarthy, K.A., and Barbash, J.E., 2008a, National, holistic, watershed-scale approach to understand the sources, transport, and fate of agricultural chemicals: Journal of Environmental Quality, v. 37, no. 3, p. 983–993, doi:10.2134/jeq2007.0226, accessed February 7, 2011, at https://www.crops.org/publications/jeq/articles/37/3/983.


Capel, P.D., McCarthy, K.A., and Barbash, J.E., 2008b, National, holistic, watershed-scale approach to understand the sources, transport, and fate of agricultural chemicals—Supplemental material section: Journal of Environmental Quality, v. 37, no. 3.


Fredrick, B.S., Linard, J.I., and Carpenter, J.L., 2006, Environmental setting of Maple Creek Watershed, Nebraska: U.S. Geological Survey Scientific Investigations Report 2006-5037, 22 p. (Also available at https://pubs.usgs.gov/sir/2006/5037/pdf/SIR20065037.pdf.)


Gronberg, J.M., and Kratzer, C.R., 2006, Environmental setting of the lower Merced River basin, California: U.S. Geological Survey Scientific Investigations Report 2006-5152, 37 p. (Also available at https://pubs.usgs.gov/sir/2006/5152/.)


Hancock, T.C., and Brayton, M.J., 2006, Environmental setting of the Morgan Creek basin, Maryland, 2002–04: U.S. Geological Survey Open-File Report 2006-1151, 28 p. (Also available at https://pubs.usgs.gov/of/2006/1151/.)


Lathrop, T.R., 2006, Environmental setting of the Sugar Creek and Leary Weber Ditch basins, Indiana: U.S. Geological Survey Scientific Investigations Report 2006-5170, 27 p. (Also available at https://pubs.usgs.gov/sir/2006/5170/.)


Payne, K.L., Johnson, H.M., and Black, R.W., 2007, Environmental setting of the Granger Drain and DR2 basins, Washington, 2003–04: U.S. Geological Survey Scientific Investigations Report 2007-5102, 26 p. (Also available at https://pubs.usgs.gov/sir/2007/5102/.)


First posted June 23, 2011