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Squillace, Paul J., and Moran, Michael J., 2000, Estimating the likelihood of MTBE occurrence in drinking water supplied by ground-water sources in the Northeast and Mid-atlantic regions of the United States: U.S. Geological Survey Open-File Report 00-343, 10 p.  Available Online

Alexander, R.B., Brakebill, J.W., Brew, R.E., and Smith, R.A., 1999, ERF1-Enhanced River Reach File 1.2: U.S. Geological Survey Open-File Report 99-457, map.  Available Online

Cuffney, T.F., Zappia, Humbert, Giddings, E.M.P., and Coles, J.R., 2005, Effects of urbanization on benthic macroinvertebrated assemblages in contrasting environmental settings: Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah: in Brown, L.R., Gray, R.H., Hughes, R.M., and Meador, M.R., eds., Effects of Urbanization on Stream Ecosystems: AFS Symposium 47, American Fisheries Society, p. 361-407.  Available Online

Calhoun, Daniel L., Frick, Elizabeth A., and Buell, Gary R., 2003, Effects of urban development on nutrient loads and streamflow, upper Chattahoochee River Basin, Georgia, 1976-2001: in Hatcher, K.J., ed., Proceedings of the 2003 Georgia Water Resources Conference, April 23-24, University of Georgia, Athens, Georgia, 5 p. 

Bexfield, L.M., Thiros, S.A., Anning, D.W., Huntington, J.M., and McKinney, T.S., 2011, Effects of natural and human factors on groundwater quality of basin-fill aquifers in the southwestern United States-conceptual models for selected contaminants: U.S. Geological Survey Scientific Investigations Report 2011-5020, 90 p. 

Kauffman, Leon J., Baehr, Arthur L., Ayers, Mark A., and Stackelberg, Paul E., 2001, Effects of land use and travel time on the distribution of nitrate in the Kirkwood-Cohansey aquifer system in southern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 01-4117, 49 p.  Available Online

Zinn, B.A., and Konikow, L.F., 2007, Effects of intraborehole flow on groundwater age distribution: Hydrogeology Journal, vol. 15, no. 4, June, p. 633-643.  doi: 10.1007/s10040-006-0139-8 Available Online

Alexander, Richard B., Smith, Richard A., and Schwarz, Gregory E., 2000, Effect of stream channel size on the delivery of nitrogen to the Gulf of Mexico: Nature, vol. 403, February 17, 2000, p. 758-761.  Available Online

Tiedeman, C.R., and Green, C.T., 2013, Effect of correlated observation error on parameters, predictions, and uncertainty: Water Resources Research, vol. 49.  doi:10.1002/wrcr.20499 Available Online

Alexander, R.B., Böhlke, J.K., Boyer, E.W., David, M.B., Harvey, J.W., Mulholland, P.J., Seitzinger, S.P., Tobias, C.R., Tonitto, C., Wollheim, W.M., 2009, Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes : Biogeochemistry (2009) 93:91-116, p. 91-116.  doi: 10.1007/s10533-008-9274-8 Available Online

Van Metre, P.C., and Fuller, C.C., 2009, Dual-core mass-balance approach for evaluating mercury and 210Pb atmospheric fallout and focusing to lakes: Environmental Science and Technology, 43(1), p. 26-32.   doi: 10.1021/es801490c Available Online

Anning, D.W, and Flynn, M.E., 2014, Dissolved-solids sources, loads, yields, and concentrations in streams of the conterminous United States: U. S. Geological Survey Scientific Investigations Report 2014-5012, 101 p.  http://dx.doi.org/10.3133/sir20145012 Available Online

Anning, David W., 2008, Dissolved solids in basin-fill aquifers and streams in the southwestern United States--Executive Summary: U.S. Geological Survey Fact Sheet 2008-3076, 4 p.  Available Online

Brakebill, J.W., Wolock, D.M., and Terziotti, S.E., 2011, Digital hydrologic networks supporting applications related to spatially referenced regression modeling: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 17 p.  doi: 10.1111/j.1752-1688.2011.00578.x Available Online

Alexander, R.B., Smith, R.A., Schwarz, G.S., Boyer, E.W., Nolan, J.V., and Brakebill, J.W., 2008, Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River Basin: Environmental Science and Technology, vol. 42, no. 3, p. 822-830.  doi: 10.1021/es0716103 Available Online

Larson, Steven J., Crawford, Charles G., and Gilliom, Robert J., 2004, Development and application of watershed regressions for pesticides (WARP) for estimating atrazine concentration distributions in streams: U.S. Geological Survey Water-Resources Investigations Report 03-4047, 68 p.  Available Online

Spahr, N.E., Mueller, D.K., and Wolock, D.W., Hitt, K.J., and Gronberg, J.M., 2010, Development and application of regression models for estimating nutrient concentrations in streams of the conterminous United States, 1992-2001: U.S. Geological Survey Scientific Investigations Report 2009-5199, 22 p.  Available Online

Stackelberg, P.E., Gilliom, R.J., Wolock, D.M., and Hitt, K.J., 2006, Development and application of a regression equation for estimating the occurrence of atrazine in shallow ground water beneath agricultural areas of the United States: U.S. Geological Survey, Scientific Investigations Report 2005-5287, 12 p.  Available Online

Ator, Scott W., Denver, Judith M. and Pitchford, Ann M., 2000, Developing Landscape-Indicator Models for Pesticides and Nutrients in Streams of the Mid-Atlantic Coastal Plain : U.S. Geological Survey Fact Sheet FS-157-00, 4 p.  Available Online

Wolock, D.M., Winter, T.C., and McMahon, G., 2004, Delineation and evaluation of hydrologic-landscape regions in the United States using geographic information system tools and multivariate statistical analyses: Environmental Management, vol. 34 (Supplement 1), p. S71-S88.  doi: 10.1007/s00267-003-5077-9 Available Online

Benedict, S.T., Conrads, P.A., Feaster, T.D., Journey, C.A., Golden, H.E., Knightes, C.D., Davis, G.M., and Bradley, P.M. , 2012, Data visualization, time-series analysis, and mass-balance modeling of hydrologic and water-quality data for the McTier Creek watershed, South Carolina, 2007-2009: U.S. Geological Survey Open-File Report 2011-1209, 21 p.  Available Online

Abrams, D., 2012, Correcting Transit Time Distributions in Coarse MODFLOW-MODPATH Models: Groundwater. v. 51. n. 3., p. 474-478.   doi: 10.1111/j.1745-6584.2012.00985.x Available Online

McMahon, G., 2007, Consequences of land-cover misclassification in models of impervious surface: Photogrammetric Engineering & Remote Sensing, vol. 73, no. 12, p. 1343-1353.  Available Online

Vicory, A., Anderson, W., Preston, S., Qualls, S., and Capelli, K. (producer), 2011, Congressional Briefing on SPARROW Model: U.S. Geological Survey Multimedia Gallery Home Video 462, 55:18 minutes.  Available Online

Thiros, S.A., Bexfield, L.M., Anning, D.W., and Huntington, J.M., eds., 2010, Conceptual understanding and groundwater quality of selected basin-fill aquifers in the Southwestern United States: U.S. Geological Professional Paper 1781, 288 p.  Available Online

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