National Water-Quality Assessment (NAWQA) Program
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Frenzel, S.A., Swanson, R.B., Huntzinger, T.L., Stamer, J.K., Emmons, P.J., and Zelt, R.B., 1998, Water quality in the Central Nebraska Basins, Nebraska, 1992-95: U.S. Geological Survey Circular 1163, 33 p. Available Online
Frick, Elizabeth A., Hippe, Daniel J., Buell, Gary R., Couch, Carol A., Hopkins, Evelyn H., Wangsness, David J., and Garrett, Jerry W., 1998, Water quality in the Apalachicola-Chattahoochee-Flint River Basin, Georgia, Alabama, and Florida, 1992-95: U.S. Geological Survey Circular 1164, 38 p. Available Online
Garabedian, S.P., Coles, J.F., Grady, S.J., Trench, E.C.T., and Zimmerman, M.J., 1998, Water quality in the Connecticut, Housatonic, and Thames River Basins, Connecticut, Massachusetts, New Hampshire, New York, and Vermont, 1992-95: U.S. Geological Survey Circular 1155, 32 p. Available Online
Land, Larry F., Moring, J. Bruce, Van Metre, Peter C., Reutter, David C., Mahler, Barbara J., Shipp, Allison A., and Ulery, Randy L., 1998, Water quality in the Trinity River Basin, Texas, 1992-95: U.S. Geological Survey Circular 1171, 39 p. Available Online
Levings, Gary W., Healy, Denis F., Richey, Steven F., and Carter, Lisa F., 1998, Water quality in the Rio Grande Valley, Colorado, New Mexico, and Texas, 1992-95: U.S. Geological Survey Circular 1162, 39 p. Available Online
Lindsey, Bruce D., Breen, Kevin J., Bilger, Michael D., and Brightbill, Robin A., 1998, Water quality in the Lower Susquehanna River Basin, Pennsylvania and Maryland, 1992-95: U.S. Geological Survey Circular 1168, 38 p. Available Online
Peters, Charles A., Robertson, D.M., Saad, D.A., Sullivan, D.J., Scudder B.C., Fitzgerald, F.A., Richards, K.D., Stewart, J.S., Fitzgerald, S.A., and Lenz, B.N., 1998, Water quality in the Western Lake Michigan drainages, Wisconsin and Michigan, 1992-95: U.S. Geological Survey Circular 1156, 40 p. Available Online
Petersen, James C., Adamski, James C., Bell, Richard W., Davis, Jerri V., Femmer, Suzanne R., Freiwald, David A., and Joseph, Robert L., 1998, Water quality in the Ozark Plateaus, Arkansas, Kansas, Missouri, and Oklahoma, 1992-95: U.S. Geological Survey Circular 1158, 33 p. Available Online
Spruill, Timothy B., Harned, Douglas A., Ruhl, Peter M., Eimers, Jo Leslie, McMahon, Gerard, Smith, Kelly E., Galeone, David R., and Woodside, Michael D., 1998, Water quality in the Albemarle-Pamlico Drainage Basin, North Carolina and Virginia, 1992-95: U.S. Geological Survey Circular 1157, 36 p. Available Online
Stoner, J.D., Lorenz, D.L., Goldstein, R.M., Brigham, M.E., and Cowdery, T.K., 1998, Water quality in the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1992-95: U.S. Geological Survey Circular 1169, 33 p. Available Online
Wall, Gary R., Riva-Murray, Karen, and Phillips, Patrick J., 1998, Water quality in the Hudson River Basin, New York and adjacent states, 1992-95: U.S. Geological Survey Circular 1165, 32 p. Available Online
Wentz, Dennis A., Bonn, Bernadine A., Carpenter, Kurt D., Hinkle, Stephen R., Janet, Mary L., Rinella, Frank A., Uhrich, Mark A., Waite, Ian R., Laenen, Antonius, and Bencala, Kenneth E., 1998, Water quality in the Willamette Basin, Oregon, 1991-95: U.S. Geological Survey Circular 1161, 34 p. Available Online
Williamson, Alex K., Munn, Mark D., Ryker Sarah J., Wagner, Richard J., Ebbert, James C., and Vanderpool, Ann M., 1998, Water quality in the Central Columbia Plateau, Washington and Idaho, 1992-95: U.S. Geological Survey Circular 1144, 35 p. Available Online
Gilliom, Robert J., and Thelin, Gail P., 1997, Classification and mapping of agricultural land for national water-quality assessment: U.S. Geological Survey Circular 1131, 70 p. Available Online
McPherson, Benjamin F., and Halley, Robert, 1997, The south Florida environment--A region under stress: U.S. Geological Survey Circular 1134, 61 p. Available Online
Mueller, David K., and Helsel, Dennis R., 1996, Nutrients in the Nation's water--Too much of a good thing?: U.S. Geological Survey Circular 1136, 24 p. Available Online
Gilliom, Robert J., Alley, William M., and Gurtz, Martin E., 1995, Design of the National Water-Quality Assessment Program: Occurrence and distribution of water-quality conditions: U.S. Geological Survey Circular 1112, 33 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
Hamilton, P.A., and Shedlock, R.J., 1992, Are fertilizers and pesticides in the ground water--A case study of the Delmarva Peninsula, Delaware, Maryland, and Virginia: U.S. Geological Survey Circular 1080, 16 p. Available Online
Phillips, P.J., Shedlock, R.J., and Hamilton, P.A., 1992, National Water-Quality Assessment Program activities on the Delmarva Peninsula in parts of Delaware, Maryland, and Virginia, in Gohn, G.S., ed. Proceedings of the 1988 U.S. Geological Survey Workshop on the Geology and Geohydrology of the Atlantic Coastal Plain: U.S. Geological Survey Circular 1059, p. 75-78. Available Online
Elder, J.F., 1989, Applicability of ambient toxicity testing to national or regional water-quality assessment: U.S. Geological Survey Open-File Report 89-55 and Circular 1049, 102 p. Available Online
Hirsch, R.M., Alley, W.M., and Wilber, W.G., 1988, Concepts for a National Water-Quality Assessment Program: U.S. Geological Survey Circular 1021, 42 p. Available Online
Mosier, E.L., and Bullock, Jr., J.H., 1988, Review of the general geology and solid-phase geochemical studies in the vicinity of the Central Oklahoma aquifer: U.S. Geological Survey Circular 1019, 18 p. Available Online