National Water-Quality Assessment (NAWQA) Program
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Leahy, P.P., Ryan, B.J., and Johnson, A. Ivan, 1993, An introduction to the U.S. Geological Survey's National Water-Quality Assessment Program: American Water Resources Association Water Resources Bulletin July/August 1993 vol. 29, no. 4, p. 529-532.
Meador, M.R., Hupp, C.R., Cuffney, T.F., and Gurtz, M.E., 1993, Methods for characterizing stream habitat as part of the National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 93-408, 48 p. Available Online
Meador, Michael R., Cuffney, Thomas F., and Gurtz, Martin E., 1993, Methods for sampling fish communities as part of the National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 93-104, 40 p. Available Online
Mueller, David K., Ruddy, Barbara C., and Battaglin, William A., 1993, Relation of nitrate concentrations in surface water to land use in the upper-midwestern United States, 1989-1990: in Goolsby, D.A., Boyer, L.L., and Mallard, G.E., compilers, Selected papers on agricultural chemicals in water resources of the midcontinental United States U.S. Geological Survey Open-File Report 93-418, p. 41-50.
Phillips, P.J., and Shedlock, R.J., 1993, Hydrology and chemistry of ground water and seasonal ponds in the Atlantic Coastal Plain in Delaware, USA: Journal of Hydrology, vol. 141, p. 157-178. doi: 10.1016/0022-1694(93)90048-EĀ Available Online
Phillips, P.J., Denver, J.M., Shedlock, R.J., and Hamilton, P.A., 1993, Effect of forested wetlands on nitrate concentrations in ground water and surface water on the Delmarva Peninsula: Wetlands v. 13, no. 2, p. 75-83. Available Online
Porter, S.G., Cuffney, T.F., Gurtz, M.E., and Meador, M.R., 1993, Methods for collecting algal samples as part of the National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 93-409, 39 p. Available Online
Pugh, A.L., and Adamski, J.C., 1993, National Water-Quality Assessment Program--Ozark Plateaus ground-water study: U.S. Geological Survey Open-File Report 93-434, 2 p. Available Online
Richey, S.F. and Ellis, S.R., 1993, National Water-Quality Assessment Program--Water use in the Rio Grande Valley, 1990: U.S. Geological Survey Open-File Report 93-456, 2 p. Available Online
Rinella, J.F., Hamilton, P.A., and McKenzie, S.W., 1993, Persistence of the DDT pesticide in the Yakima River Basin, Washington: U.S. Geological Survey Circular 1090, 24 p. Available Online
Shedlock, R.J., 1993, The Delmarva study: Geotimes, December 1993 vol. 38, no. 12, p. 12-14.
Shedlock, R.J., Hamilton, P.A., Denver, J.M., and Phillips, P.J., 1993, Multiscale approach to regional ground-water-quality assessment of the Delmarva Peninsula, in Alley, W.M., ed.: Regional Ground-Water Quality: New York, Van Nostrand Reinhold, p. 563-587.
Smith, Richard A., Alexander, Richard B., Tasker, Gary D., Price, Curtis V., Robinson, Keith W., and White, Dale A., 1993, Statistical modeling of water-quality in regional watersheds: Watershed '93, p. 751-754.
Stell, Susan M., 1993, National Water Quality Assessment Program: Analysis of available information on pesticides for the Apalachicola-Chattahoochee-Flint River Basin: Proceedings of the 1993 Georgia Water Resources Conference, April 20-21,1993 Athens, Georgia, 3 p.
Stoner, Jeffrey D., Lorenz, David L., Wiche, Gregg J., and Goldstein, Robert M., 1993, Red River of the North Basin Minnesota, North Dakota, and South Dakota: American Water Resources Association Water Resources Bulletin July/August 1993, vol. 29, no. 4, p. 575-615. doi: 10.1111/j.1752-1688.1993.tb03229.x Available Online
Sullivan, Daniel J., and Terrio, Paul J., 1993, Surface-water-quality assessment of the Upper Illinois River Basin in Illinois, Indiana, and Wisconsin: Data on agricultural organic compounds, nutrients, and sediment in water, 1988-90: U.S. Geological Survey Open-File Report 93-421, 61 p. Available Online
Terrio, Paul J., 1993, Relations of changes in wastewater-treatment practices to changes in stream-water quality during 1978-88 in the Chicago area, Illinois, and implications for regional and National water-quality assessments: U.S. Geological Survey Water-Resources Investigations Report 93-4188, 56 p. Available Online
Thomas, J.T., Welch, A.H., Lico, Michael S., Hughes, Jennifer L., and Whitney, Rita, 1993, Radionuclides in ground water of the Carson River Basin, western Nevada and eastern California, USA: Applied Geochemistry, vol. 8, p. 447-471. doi: 10.1016/0883-2927(93)90075-RĀ Available Online
Ulery, Randy L., Van Metre, Peter C., and Crossfield, Allison S., 1993, Trinity River Basin Texas: American Water Resources Association Water Resources Bulletin July/August 1993, vol. 29, no. 4, p. 685-711. doi: 10.1111/j.1752-1688.1993.tb03232.x Available Online
Wangsness, David J., 1993, National Water-Quality Assessment Program: Overview of the Apalachicola-Chattahoochee-Flint River Basin: Proceedings of the 1993 Georgia Water Resources Conference, April 20-21,1993 Athens, Georgia, 1 p.
Zelt, R.B., and Jordan, R.R., 1993, Water-quality assessment of the Central Nebraska Basins: Summary of data for recent conditions through 1990: U.S. Geological Survey Open-File Report 93-422, 178 p. Available Online
Bachman, L.J., Zynjuk, L.D., and Phillips, P.J., 1992, The significance of hydrologic landscapes in estimating nitrogen loads in base flow to estuarine tributaries of Chesapeake Bay: EOS, Transactions, American Geophysical Union, vol. 73, no. 14, Spring Meeting Supplement, p. 113.
Christenson, Scott, and Carpenter, Lyn, eds., 1992, Ground-water quality of the Central Oklahoma (Garber-Wellington) aquifer conference: Proceedings, February 20, 1992: U.S. Geological Survey Open-File Report 92-116, 24 p. Available Online
Colman, J.A., and Sanzolone, R.F., 1992, Geochemical characterization of streambed sediment in the Upper Illinois River Basin: American Water Resources Association Water Resources Bulletin October 1992, vol. 28, no. 5, p.933. doi: 10.1111/j.1752-1688.1992.tb03193.x Available Online
Crawford, J. Kent, and Luoma, Samuel N., 1992, Guidelines for studies of contaminants in biological tissues for the National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 92-494, 69 p. Available Online
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