National Water-Quality Assessment (NAWQA) Project
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Alley, W.M., and Wilber, W.G., 1988, National Water-Quality Assessment Program: 1988 U.S. Geological Survey Year Book, p. 37-39.
Ator, S.W., Brakebill, J.W., and Blomquist, J.D., 2011, Sources, fate, and transport of nitrogen and phosphorus in the Chesapeake Bay Watershed - An empirical model: U.S. Geological Survey Scientific Investigations Report 2011-5167, 27 p. Available Online
Ator, S.W., Denver, J.M., and Brayton, M.J., 2005, Hydrologic and geochemical controls on pesticide and nutrient transport to two streams on the Delmarva Peninsula: U.S. Geological Survey Scientific Investigations Report 2004-5051, 34 p. Available Online
Ator, S.W., Denver, J.M., Krantz, D.E., Newell, W.L., and Martucci, S.K., 2005, A surficial hydrogeologic framework for the Mid-Atlantic coastal plain: U.S. Geological Survey Professional Paper 1680, 44 p., and 4 maps. Available Online
Ator, Scott W., 1998, Nitrate and pesticide data for waters of the Mid-Atlantic Region: U.S. Geological Survey Open-File Report 98-158, 5 p. Available Online
Ator, Scott W., 2008, Natural and human influences on water quality in a shallow regional unconsolidated aquifer, Northern Atlantic Coastal Plain: U.S. Geological Survey Scientific Investigations Report 2008-5190, 19 p. Available Online
Ator, Scott W., 2000, Relating shallow ground-water quality to surficial hydrogeology in the Mid-Atlantic Coastal Plain: Conference Proceedings- NWQMC National Monitoring Conference 2000, Austin, Texas, p. 409-423.
Ator, Scott W., and Denver, Judith M., 2012, Estimating contributions of nitrate and herbicides from groundwater to headwater streams, Northern Atlantic Coastal Plain, United States: Journal of the American Water Resources Association, online 20Sept2012 in advance of print, 16 p. doi: 10.1111 /j.1752-1688.2012.00672.x Available Online
Ator, Scott W., and Ferrari, and Matthew J., 1997, Nitrate and selected pesticides in ground water of the Mid-Atlantic Region: U.S. Geological Survey Water-Resources Investigations Report 97-4139, 8 p. Available Online
Ator, Scott W., Denver, Judith M. and Pitchford, Ann M., 2000, Developing Landscape-Indicator Models for Pesticides and Nutrients in Streams of the Mid-Atlantic Coastal Plain : U.S. Geological Survey Fact Sheet FS-157-00, 4 p. Available Online
Bachman, L.J., Shedlock, R.J., and Phillips, P.J., 1987, Ground-water-quality assessment of the Delmarva Peninsula, Delaware, Maryland, and Virginia: Project Description: U.S. Geological Survey Open-File Report 87-112, 18 p. Available Online
Bachman, L.J., Zynjuk, L.D., and Phillips, P.J., 1992, The significance of hydrologic landscapes in estimating nitrogen loads in base flow to estuarine tributaries of Chesapeake Bay: EOS, Transactions, American Geophysical Union, vol. 73, no. 14, Spring Meeting Supplement, p. 113.
Brightbill, R.A., and Munn, M.D., 2008, Environmental and biological data of the nutrient enrichment effects on stream ecosystems project of the National Water Quality Assessment Program, 2003-04: U.S. Geological Survey Data Series 345, 12 p. Available Online
Calhoun, Daniel L., Gregory, M.B., and Weyers, H.S., 2008, Algal and invertebrate community composition along agricultural gradients: A comparative study from two regions of the Eastern United States: U.S. Geological Survey Scientific Investigations Report 2008-5046, 33 p. Available Online
Chapman, M.J., Cravotta, C.A., III, Szabo, Z., and Lindsey, B.D., 2013, Naturally occurring contaminants in the Piedmont and Blue Ridge crystalline-rock aquifers and Piedmont Early Mesozoic basin siliciclastic-rock aquifers, eastern United States, 1994-2008: U.S. Geological Survey Scientific Investigations Report 2013-5072, 74 p. Available Online
Daniels, Robert A., Riva-Murray, Karen, Halliwell, David B., Vana-Miller, David, L., Bilger, Michael D., 2002, An index of biological integrity for northern Mid-Atlantic Slope drainages: Transactions of the American Fisheries Society, vol. 131, no. 6, p. 1044-1060. doi: 10.1577/1548-8659(2002)131<1044:AIOBIF>2.0.CO;2 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
Debrewer, Linda M., Ator, Scott W., and Denver, Judith M., 2008, Temporal trends in nitrate and selected pesticides in Mid-Atlantic ground water: Journal of Environmental Quality, vol. 37, no. 5, p. S296-S308. doi: 10.2134/jeq2007.0664 Available Online
Denis, Janet M., and Blomquist, Joel D., 1995, Nitrate in streams in the Great Valley carbonate subunit of the Potomac River Basin: U.S. Geological Survey Fact Sheet 161-95, 4 p. Available Online
Denver, J.M., Ator, S.W., Debrewer, L.M., Ferrari, M.J., Barbaro, J.R., Hancock, T.C., Brayton, M.J., and Nardi, M.R., 2004, Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999-2001: U.S. Geological Survey Circular 1228, 30 p. Available Online
Denver, J.M., Ator, S.W., Fischer, J.M., Harned, D.C., Schubert, Christopher, and Szabo, Zoltan, 2014, The quality of our Nation's waters-Water quality in the Northern Atlantic Coastal Plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009: U.S. Geological Survey Circular 1353, 88 p. http://dx.doi.org/10.3133/cir1353 Available Online
Denver, J.M., Cravotta, C.A., III, Ator, S.W., and Lindsey, B.L., 2010, Contributions of phosphorus from groundwater to streams in the Piedmont, Blue Ridge, and Valley and Ridge Physiographic Provinces, Eastern United States: U.S. Geological Survey Scientific Investigations Report 2010-5176, 38 p. Available Online
Denver, J.M., Tesoriero, A.J., and Barbaro, J.R., 2009, Trends and transformation of nutrients and pesticides in a Coastal Plain Aquifer System, United States: Journal of Environmental Quality 2009 39, p. 154-167. doi: 10.2134/jeq2009.0107 Available Online
Domagalski, Joseph, Zinquan, Zhou, Chao, Lin, et al., 2001, Comparative water-quality assessment of the Hai He River Basin in the People's Republic of China and three similar basins in the United States: U.S. Geological Survey Professional Paper 1647, 58 p. Available Online
Dunkle, S.A., Plummer, L.N., Busenberg, E., Phillips, P.J., Denver, J.M., Hamilton, P.A., Michel, R.L., and Coplen, T.B., 1993, Chlorofluoro-carbons (CC13F and CC12F2) as dating tools and hydrologic tracers in shallow groundwater of the Delmarva Peninsula, Atlantic Coastal Plain, United States: Water Resources Research, vol. 29, no. 12, p. 3837-3860. Available Online
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