National Water-Quality Assessment (NAWQA) Program
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Wolock, D.M., Winter, T.C., and McMahon, G., 2004, Delineation and evaluation of hydrologic-landscape regions in the United States using geographic information system tools and multivariate statistical analyses: Environmental Management, vol. 34 (Supplement 1), p. S71-S88. doi: 10.1007/s00267-003-5077-9 Available Online
Woods, Paul F., 2004, Role of limnological processes in fate and transport of nitrogen and phosphorus loads delivered into Coeur d'Alene Lake and Lake Pend Oreille, Idaho, and Flathead Lake, Montana: U.S. Geological Survey Professional Paper 1682, 44 p. Available Online
Bender, David A., Asher, William E., and Zogorski, John S., 2003, LakeVOC--A Deterministic Model to Estimate Volatile Organic Compound Concentrations in Reservoirs and Lakes: U.S. Geological Survey Open-File Report 03-212, 283 p. Available Online
Bender, David A., Asher, William E., and Zogorski, John S., 2003, LakeVOC--A computer model to estimate the concentration of volatile organic compounds in lakes and reservoirs: U.S. Geological Survey Fact Sheet 104-03, 6 p. Available Online
Calhoun, Daniel L., Frick, Elizabeth A., and Buell, Gary R., 2003, Effects of urban development on nutrient loads and streamflow, upper Chattahoochee River Basin, Georgia, 1976-2001: in Hatcher, K.J., ed., Proceedings of the 2003 Georgia Water Resources Conference, April 23-24, University of Georgia, Athens, Georgia, 5 p.
McMahon, Gerald, Alexander, R.B., and Qian, S., 2003, Support of Total Maximum Daily Load programs using spatially referenced regression models: ASCE Journal of Water Resources Planning and Management, vol. 129, no. 4, p. 315-329. doi: 10.1061/(ASCE)0733-9496(2003)129:4(315) Available Online
Nolan, Bernard T., Baehr, Arthur L., and Kauffman, Leon J., 2003, Spatial variability of groundwater recharge and its effect on shallow groundwater quality in southern New Jersey: Vadose Zone Journal, vol. 2, p. 677-691. Available Online
Powell, Jeffrey R., 2003, Response of fish communities to cropland density and natural environmental setting in the Eastern Highland Rim Ecoregion of the lower Tennessee River Basin, Alabama and Tennessee, 1999: U.S. Geological Survey Water-Resources Investigations Report 02-4268, 48 p. Available Online
Alexander, Richard B., Elliott, Alexander H., Shankar, Ude, and McBride, Graham B., 2002, Estimating the sources and transport of nutrients in the Waikato River Basin, New Zealand: Water Resources Research 2002, 23 p. doi: 10.1029/2001WR000878 Available Online
Alexander, Richard B., Johnes, Penny J., Boyer, Elizabeth W., and Smith, Richard A., 2002, A comparison of models for estimating the riverine export of nitrogen from large watersheds: Biogeochemistry, vol. 57, no. 58, p. 295-339. doi: 10.1023/A:1015752801818 Available Online
Caskey, B.J., Justus, B.G., and Zappia, Humbert, 2002, Occurrence of invertebrates at 38 stream sites in the Mississippi Embayment study unit, 1996-99: U.S. Geological Survey Open-File Report 02-190, CD-ROM. Available Online
McMahon, Gerald and Roessler, Chris, 2002, A regression-based approach to understand baseline total nitrogen loading for TMDL planning: Proceedings of Water Environment Federation National TMDL Science and Policy 2002 Specialty Conference, Phoenix, Arizona, November 13-16,2002, 27 p.
Mullaney, John R., Schwarz, Gregory E., and Trench, Elaine C. Todd, 2002, Estimation of nitrogen yields and loads from basins draining to Long Island Sound, 1988-98: U.S. Geological Survey Water-Resources Investigations Report 02-4044, 84 p. Available Online
Nolan, Bernard T., Hitt, Kerie J., and Ruddy, Barbara C., 2002, Probability of nitrate contamination of recently recharged groundwaters in the conterminous United States: Environmental Science & Technology, vol. 36, no. 10, p. 2138-2145. doi: 10.1021/es0113854 Available Online
Wolock, David M., and Kauffman, Leon K., 2002, Estimating water-quality conditions in unmonitored water resources: Water Resources Impact, vol. 4, no. 4, July 2002, p. 26-31. Available Online
Baehr, Arthur L., Charles, Emmanuel G., and Baker, Ronald J., 2001, Methyl tert- butyl either degradation in the unsaturated zone and the relation between MTBE in the atmosphere and shallow ground water: Water Resources Research, vol. 37, no. 2, p. 223-233. Available Online
Kauffman, Leon J., Baehr, Arthur L., Ayers, Mark A., and Stackelberg, Paul E., 2001, Effects of land use and travel time on the distribution of nitrate in the Kirkwood-Cohansey aquifer system in southern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 01-4117, 49 p. Available Online
Larson, Steven J., and Gilliom, Robert J., 2001, Regression models for estimating herbicide concentrations in U.S. streams from watershed characteristics: Journal of the American Water Resources Association, vol. 37, no. 5, p. 1349-1367. doi: 10.1111/j.1752-1688.2001.tb03644.x Available Online
McMahon, P.B., 2001, Vertical gradients in water chemistry in the Central High Plains Aquifer, southwestern Kansas and Oklahoma Panhandle, 1999: U.S. Geological Survey Water-Resources Investigations Report 01-4028, 47 p. Available Online
Nolan, Bernard T., 2001, Relating nitrogen sources and aquifer susceptibility to nitrate in shallow ground waters of the United States: Ground Water, vol. 39, no. 2, p. 290-299. Available Online
Robertson, D.M., and Saad, D.A., 2001, Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 23 p. doi: 10.1111/j.1752-1688.2011.00574.x Available Online
Sauer, T.J., Alexander, R.B., Brahana, J.V., and Smith, R.A., 2001, The importance and role of watersheds in the transport of nitrogen: in Follett, R.F. and Hatfield, J.L., eds., Chapter 7 Nitrogen in the Environment: Elsevier, p. 147-181. Available Online
Wong, Charles S., Capel, Paul D., and Nowell, Lisa H., 2001, National-scale, field-based evaluation of the biota--Sediment accumulation factor model: Environmental Science & Technology, vol. 35, no. 9, p. 1709-1715. doi: 10.1021/es0016452 Available Online
Alexander, Richard B., Smith, Richard A., and Schwarz, Gregory E., 2000, Effect of stream channel size on the delivery of nitrogen to the Gulf of Mexico: Nature, vol. 403, February 17, 2000, p. 758-761. Available Online
Alexander, Richard B., Smith, Richard A., Schwarz, Gregory E., Preston, Stephen D., Brakebill, John W., Srinivasan, Raghavan, and Pacheco, Percy A., 2000, Atmospheric nitrogen flux from the watersheds of major estuaries of the United States: An application of the SPARROW watershed model: American Geophysical Union, p. 119-170.
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