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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Sprague, L.A., Mueller, D.K., Schwarz, G.E., and Lorenz, D.L., 2009, Nutrient trends in streams and rivers of the United States, 1993-2003: U.S. Geological Survey Scientific Investigations Report 2008-5202, 196 p. Available Online
Sprague, L.A., and Lorenz, D.L., 2009, Regional nutrient trends in streams and rivers of the United States, 1993-2003: Environmental Science and Technology, vol. 43, no. 10, p. 3430-3435. doi: 10.1021/es803664x Available Online
Smoot, J.L., Liebermann, T.D., Evaldi, R.D., and White, K.D., 1995, Water-quality assessment of the Kentucky River Basin, Kentucky - analysis of available surface-water-quality data through 1986: U.S. Geological Survey Water Supply Paper 2351-B, 194 p. Available Online
Smoot, J.L., Liebermann, T.D., Evaldi, R.D., and White, K.D., 1991, Surface- water-quality assessment of the Kentucky River Basin in Kentucky: Analysis of available information through 1986: U.S. Geological Survey Open-File Report 90-360, 209 p. 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
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
Ryberg, K.R., Vecchia, A.V., Martin, J.D., and Gilliom, R.J., 2010, Trends in pesticide concentrations in urban streams in the United States, 1992-2008: U.S. Geological Survey Scientific Investigations Report 2010-5139, 101 p. 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
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
Rosen, Michael R., and Lapham, Wayne W., 2008, Introduction to the U.S. Geological Survey National Water-Quality Assessment (NAWQA) of Ground-Water Quality Trends and Comparison to Other National Programs: Journal of Environmental Quality, vol. 37, no. 5, p. S190-S198. doi: 10.2134/jeq2008.0049 Available Online
Rosen, Michael R., 2003, Trends in nitrate and dissolved-solids concentrations in ground water, Carson Valley, Douglas County, Nevada, 1985-2001: U.S. Geological Survey Water-Resources Investigations Report 03-4152, 6 p. Available Online
Robinson, Keith W., Campbell, Jean P., and Jaworski, Norbert A., 2003, Water-quality trends in New England rivers during the 20th century: U.S. Geological Survey Water-Resources Investigations Report 03-4012, 20 p. Available Online
Riva-Murray, Karen, Brightbill, Robin A., and Bilger, Michael D., 2003, Trends in concentrations of polychlorinated biphenyls in fish tissue from selected sites in the Delaware River Basin in New Jersey, New York, and Pennsylvania, 1969-98: U.S. Geological Survey Water-Resources Investigations Report 01-4066, 20 p. Available Online
Rebich, R.A., and Demcheck, D.K., 2007, Trends In Nutrient and Sediment Concentrations and Loads In Major River Basins of the South-Central United States, 1993-2004: USGS Scientific Investigations Report 2007-5090, 112 p. Available Online
Paschke, Suzanne S., Schaffrath, Keelin R., and Mashburn, Shana L., 2008, Near-Decadal Changes in Nitrate and Pesticide Concentrations in the South Platte River Alluvial Aquifer, 1993-2004: Journal of Environmental Quality, vol. 37, no. 5, p. S281-S295. doi: 10.2134/jeq2007.0656 Available Online
Nowell, Lisa H., Capel, Paul D., and Dileanis, Peter D., 1999, Pesticides in stream sediment and aquatic biota: Distribution, trends, and governing factors: Volume 4 of the series: Pesticides in the Hydrologic System: Lewis Publishers, 1001 p. Available Online
Naftz, David L., Stephens, Doyle W., Callender, Edward, and Van Metre, Peter C., 2000, Reconstructing historical changes in the environmental health of watersheds by using sediment cores from lakes and reservoirs in Salt Lake Valley, Utah: U.S. Geological Survey Fact Sheet FS-164-00, 6 p. Available Online
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
Murdoch, Peter S., Baron, Jill S., and Miller, Timothy L., 2000, Potential effects of climate change on surface-water quality in North America: Journal of the American Water Resources Association, vol. 36, no. 2, p. 347-366. doi: 10.1111/j.1752-1688.2000.tb04273.x 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
Miller, M.P., Brasher, A.M.D., and Kennen, J.G., 2013, Multi-regional synthesis of temporal trends in biotic assemblages in streams and rivers of the continental United States: U.S. Geological Survey Scientific Investigations Report 2013-5046, 20 p. Available Online
Meyers, Donna N., and Metzker, Kevin D., 2000, Status and trends in suspended sediment discharges and conservation tillage in the Maumee River Basin: U.S. Geological Survey Water-Resources Investigations Report 00-4091, 38 p. Available Online
McMahon, P.B., 2012, Use of classes based on redox and groundwater age to characterize the susceptibility of principal aquifers to changes in nitrate concentrations, 1991 to 2010: U.S. Geological Survey Scientific Investigations Report 2012-5220, 41 p. Available Online
Martin, J.D. Eberle, M.,and Nakagaki, N., 2011, Sources and preparation of data for assessing trends in concentrations of pesticides in streams of the United States, 1992-2010: U.S. Geological Survey Data Series 655, 23 p. Available Online
Martin, J.D., 2009, Sources and preparation of data for assessing trends in concentrations of pesticides in streams of the United States, 1992-2006: U.S. Geological Survey Scientific Investigations Report 2009-5062, 41 p. Available Online
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