National Water-Quality Assessment (NAWQA) Program
More Information about Trends
Regional and National Monitoring and Assessments of Streams and Rivers | Regional Assessments of Principal Aquifers | Contaminant Trends in Lake Sediments
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Musgrove, MaryLynn, Fahlquist, Lynne, Houston, N.A., Lindgren, R.J., and Ging, P.B., 2009, Geochemical evolution processes and water-quality observations based on results of the National Water-Quality Assessment Program in the San Antonio segment of the Edwards aquifer, 1996-2006: U.S. Geological Survey Scientific Investigations Report 2010-5129, 93 p. Available Online
Dalton, Melinda S., and Frick, Elizabeth A., 2008, Fate and transport of pesticides in the ground water systems of southwest Georgia, 1993-2005: Journal of Environmental Quality, vol. 37, no. 5, p. S264-S272. doi: 10.2134/jeq2007.0163 Available Online
Debrewer, L.M., Ator, S.W., and Denver, J.M., 2007, Factors affecting spatial and temporal variability in nutrient and pesticide concentrations in the surficial aquifer on the Delmarva Peninsula: U.S. Geological Survey Scientific Investigations Report 2005-5257, 44 p. Available Online
Rosen, Michael R., Voss, Frank D., and Arufec, Jorge A., 2008, Evaluation of Intra-annual Variation in U.S. Geological Survey National Water Quality Assessment Ground Water Quality Data: Journal of Environmental Quality, vol. 37, no. 5, p. S199-S208. doi: 10.2134/jeq2007.0055 Available Online
Kalkhoff, Stephen J., Vecchia, Aldo V., Capel, Paul D., and Meyer, Michael T., 2012, Eleven-year trend in acetanilide pesticide degradates in the Iowa River, Iowa: Journal of Environmental Quality, vol. 41, no. 5, p. 1566-1579. doi: 10.2134/jeq2011.0426 Available Online
Sams III, James I., and Beer, Kevin M., 2000, Effects of coal-mine drainage on stream water quality in the Allegheny and Monongahela Basins, sulfate transport and trends: U.S. Geological Survey Water-Resources Investigations Report 99-4208, 17 p. 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
Van Metre, P.C., Callender, Edward, Mahler, B.J., Wilson, J.T., and Dorsey, M.E., 2001, Differences in lake and reservoir sedimentation - Implications for sediment coring studies: Proceedings of the Seventh Interagency Sedimentation Conference, vol. 2, IX, p. 12-19.
Bexfield, Laura M., 2008, Decadal-scale changes of pesticides in ground water of the United States, 1993-2003: Journal of Environmental Quality, 2008, vol. 37, no. 5, p. S226-S239. doi:10.2134/jeq2007.0054 Available Online
Rupert, Michael G., 2008, Decadal-Scale Changes of Nitrate in Ground Water of the United States, 1988-2004: Journal of Environmental Quality, vol. 37, no. 5, p. S240-S248. doi: 10.2134/jeq2007.0055 Available Online
Staub, E.L., Peak, K.L., Tighe, K.C., Sadorf, E.M., and Harned, D.A., 2009, Data used in analyses of trends, and nutrient and suspended-sediment loads for streams in the Southeastern United States, 1973-2005: U.S. Geological Survey Data Series 488, on-line only. Available Online
Mahler, B.J., and Van Metre, P.C., 2001, Contaminants associated with suspended sediment in urban streams in Austin, Texas: Proceedings of the Seventh Interagency Sedimentation Conference, vol. 2, VII, p. 41-48.
Van Metre, P.C., and Mahler, B.J., 2004, Contaminant trends in reservoir sediment cores as records of influent stream quality: Environmental Science and Technology, vol. 38, no. 11, p. 2978-2986. doi: 10.1021/es049859x Available Online
Anderson, Jesse and Perry, Jim, 1999, Comparison of temporal trends in ambient and compliance trace element and PCB data in Pool 2 of the Mississippi River, 1985-95: Environmental Management, vol. 24, no. 4, p. 497-507. Available Online
Van Metre, Peter C., 1999, Chemical Quality of Sediment Cores from the Laguna Madre, Laguna Atascosa, and Arroyo Colorado, Texas: U.S. Geological Survey Fact Sheet FS-139-99, 4 p. Available Online
Mueller, David K., Lapham, Wayne W., Gurtz, Martin E., and Van Metre, Peter C., 2002, Changes in water quality over time: Water Resources Impact, vol. 4, no. 4, July 2002, p. 22-25. Available Online
Barlow, Jeannie R.B., Kingsbury, James A., and Coupe, Richard H., 2012, Changes in shallow groundwater quality beneath recently urbanized areas in the Memphis, Tennessee area: Journal of the American Water Resources Association, vol. 48, no. 2, p. 336-354. doi: 10.1111/j.1752-1688.2011.00616.x Available Online
Ging, Patricia B., Van Metre, Peter C., and Callender, Edward, 1999, Bottom sediments of Lorence Creek Lake, San Antonio, Texas, reflect contaminant trends in an urbanizing watershed: U.S. Geological Survey Fact Sheet FS-149-99, 4 p. Available Online
Wiele, S.M., Brasher A.M.D., Miller, M.P., May J.T., and Carpenter, K.D., 2012, Biotic, water-quality, and hydrologic metrics calculated for the analysis of temporal trends in National Water Quality Assessment Program Data in the Western United States: U.S. Geological Survey Open-File Report 2012-1203, 11 p. Available Online
Burow, K.R., Jurgens, B.C., Belitz, K., and Dubrovsky, N.M., 2013, Assessment of regional change in nitrate concentrations in groundwater in the Central Valley, California, USA, 1950s-2000s: Environmental Earth Sciences, vol. 69, no. 8, p. 2609-2621. DOI 10.1007/s12665-012-2082-4 Available Online
Van Metre, P.C., and Horowitz, A.J., 2012, An 80-year record of sediment quality in the lower Mississippi River: Hydrological Processes, vol. 27, p. 2438-2448. DOI: 10.1002/hyp.9336 Available Online
Saad, David A., 2008, Agriculture-Related Trends in Groundwater Quality of the Glacial Deposits Aquifer, Central Wisconsin: Journal of Environmental Quality, vol. 37, p 209-225. doi: 10.2134/jeq2007.0053 Available Online
Kolpin, Dana, Hallberg, George, Sneck-Fahrer, Debra, and Libra, Robert, 1997, Agricultural chemicals in Iowa's ground water, 1982-95--What are the trends?: U.S. Geological Survey Fact Sheet FS-116-97, 4 p. Available Online
Anderson, Jesse Paul, 1997, A comparison of temporal trends in ambient and compliance trace element and PCB data in Pool 2 of the Mississippi River, 1985-95: University of Minnesota, Master of Science Thesis, 77 p.
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