National Water-Quality Assessment (NAWQA) Program
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Raese, Jon W., Rose, Donna L., and Sandstrom Mark W., 1995, U.S. Geological Survey laboratory method for methyl tert-butyl ether: U.S. Geological Survey Fact Sheet FS-219-95, 4 p. Available Online
Sandstrom, Mark W., 1995, Filtration of water-sediment samples for the determination of organic compounds: U.S. Geological Survey Water-Resources Investigations Report 95-4105, 13 p. Available Online
Squillace, Paul J., Pope, Daryll A., and Price, Curtis A., 1995, Occurrence of the gasoline additive MTBE in shallow ground water in urban and agricultural areas: U.S. Geological Survey Fact Sheet 114-95, 4 p. Available Online
Squillace, Paul J., Zogorski, John S., Wilber, William G., and Price, Curtis V., 1995, A preliminary assessment of the occurrence and possible sources of MTBE in ground water of the United States, 1993-94: U.S. Geological Survey Open-File Report 95-456, 15 p. Available Online
Zaugg, Steven D., Sandstrom, Mark W., Smith, Steven G., and Fehlberg, Kevin M., 1995, Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of pesticides in water by C-18 solid-phase extraction and capillary-column gas chromatography/mass spectrometry with selected-ion monitoring: U.S. Geological Survey Open-File Report 95-181, 49 p. Available Online
Majewski, M.S., 1994, Pesticides in the atmosphere, in U.S. Geological Survey earth science in the public service 1994: U.S. Geological Survey Yearbook 1994, p. 48-51.
National Research Council, 1994, National Water-Quality Assessment Program: The challenge of national synthesis: National Academy Press, 1994, Washington, D.C., 51 p. Available Online
Nowell, L.H., and Resek, E.A., 1994, National standards and guidelines for pesticides in water, sediment, and aquatic organisms: Application to water-quality assessments: in Ware, G.W., ed., Reviews of environmental contamination and toxicology, vol. 140: Springer-Verlag, New York, 221 p. Available Online
Nowell, Lisa H., and Resek, Elizabeth A., 1994, Summary of national standards and guidelines for pesticides in water, bed sediment, and aquatic organisms and their application to water-quality assessments: U.S. Geological Survey Open-File Report 94-44, 115 p. Available Online
Puckett, Larry J., 1994, Nonpoint and point sources of nitrogen in major watersheds of the United States: U.S. Geological Survey Water-Resources Investigations Report 94-4001, 9 p. Available Online
Stewart, Jana S., 1994, Assessment of alternative methods for stratifying landsat TM data to improve land cover classification accuracy across areas with physiographic variation: University of Wisconsin-Madison, Master of Science thesis, 159 p.
Wilber, William G., and Davis, Jerri V., 1994, Assessing the quality of the Nation's water--Point versus nonpoint sources of phosphorus in rivers: U.S. Geological Survey Yearbook, Fiscal Year 1993, p. 48-49.
Capel, P.D., 1993, Organic chemical concepts, Chapter 7: in Alley, W.M., ed., Regional ground-water quality: New York, Van Nostrand Reinhold, p. 155-179. Available Online
Hamilton, P.A., Welch, A.H., Christenson, S.C., and Alley W.M., 1993, Uses and limitations of existing ground-water-quality data in Alley, W.M., ed.: Regional Ground-Water Quality: New York, Van Nostrand Reinhold, p. 613-622.
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.
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.
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.
Hamilton, P.A., 1992, National Water-Quality Assessment: Public outreach and involvement: U.S. Geological Survey Yearbook, Fiscal Year 1992, p.42-45.
Juracek, K.E., Kenny, J.F., and Perry, C.A., 1992, Herbicides, water quality and you: U.S. Geological Survey Open-File Report 92-127, videocassette Available Online
Leahy, P.P., 1992, Consistent data on water quality--It's long overdue: Geotimes December 1992, p 5.
Alley, W.M., and Cohen, Philip, 1991, A scientifically based nationwide assessment of groundwater quality in the United States: Environmental Geology and Water Science, vol. 17, no. 1, p. 17-22. doi: 10.1007/BF01716071 Available Online
Leahy, P.P., and Wilber, W.G., 1991, The National Water-Quality Assessment (NAWQA) Program--A basis for water-resource policy development: Irrigation and drainage Proceedings 1991, Honolulu, HI, p. 711-717.
Leahy, P.P., and Wilber, W.G., 1991, National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 91-54, 2 p. Available Online
Alley, W.M., Wilber, W.G., and Leahy, P.P., 1990, Hydrologic basin approach to national water-quality assessment in the United States: in Hooghart, J.C., Posthumus, C.W.S., and Warmerdam. P.M.M., eds., Hydrologic Research Basins and the Environments: Proceedings and Information No.44, The Hague, p. 285-294.
Leahy, P.P., 1990, Implementation plan for the National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 90-174, 10 p. Available Online
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