National Water-Quality Assessment (NAWQA) Project

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The National Water-Quality Assessment (NAWQA) Program has produced more than 1,500 reports (complete bibliography) describing how water quality conditions vary locally, regionally, and nationally; whether conditions are getting better or worse over time; and how natural features and human activities affect these conditions. Conditions also were compared to national water-quality standards, guidelines, and benchmarks to assess the potential effects on drinking water and aquatic life. Most of these reports can be accessed on-line through the topical and geographical searches listed below.


Quick Links
to selected NAWQA reports:

General Interest Reports - summaries of relevant scientific information in a form designed for general and scientific audiences.

Fact Sheets - 2-6 page summaries of selected topics or report highlights

SPARROW modeling publications

National NAWQA Publications

NAWQA publications by state:

Image Map - U.S. Map

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Christensen, V.G., and Labounty, A.E., 2018, A History of Trade Routes and Water-Level Regulation on Waterways in Voyageurs National Park, Minnesota, USA: World Environmental and Water Resources Congress 2018, p. 125-135.  doi: 10.1061/9780784481394.014 Available Online

Christensen, V.G., Make, R.P., LeDuc J.F., 2018, Voyageurs National Park: Water-Level Regulation and Effects on Water Quality and Aquatic Biology: World Environmental and Water Resources Congress 2018, p. 185-194.  doi: 10.1061/9780784481394.017 Available Online

Michel, R.L., Jurgens, B.C., and Young, M.B, 2018, Tritium deposition in precipitation in the United States, 1953-2012: U.S. Geological Survey Scientific Investigations Report 2018-5086, 11 p.  doi: 10.3133/sir20185086 Available Online

Belitz, K., Watson, E., Johnson, T.D., Sharpe, J., 2018, Secondary Hydrogeologic Regions of the Conterminous United States: Ground Water,   doi: 10.1111/gwat.12806 Available Online

Tesoriero, A.J., Terziotti, S., Abrams, J.D., 2015, Predicting Redox Conditions in Groundwater at a Regional Scale: Environmental Science and Technology, 7 p.  doi/10.1021/acs.est.5b01869 Available Online

Tesoriero, A.J. , Gronberg, J.A., Juckem, P.F., Miller, M.P., Austin, B.P., 2017, Predicting redox-sensitive contaminant concentrations in groundwater using random forest classification: Water Resources Research, 53 p.  doi:10.1002/2016WR020197 Available Online

Clow, D.W., Mast, M.A., Sickman, J.O., 2018, Linking transit times to catchment sensitivity to atmospheric deposition of acidity and nitrogen in mountains of the western United States: Hydrological Processes, 1-15,   doi: 10.1002/hyp.13183 Available Online

Wetherbee, G.A., and Martin, RoseAnn, 2018, External quality assurance project report for the National Atmospheric Deposition Program's National Trends Network and Mercury Deposition Network, 2015-16: U.S. Geological Survey Scientific Investigations Report 2018-5034, 27 p.  DOI: 10.3133/sir20185034 Available Online

Battaglin, W.A., Bradley, P.M., Iwanowicz, L., Journey, C.A., Walsh, H.L., Blazer, V.S., 2018, Pharmaceuticals, hormones, pesticides, and other bioactive contaminants in water, sediment, and tissue from Rocky Mountain National Park, 2012-2013: Science of The Total Environment Volume 643, 1 December 2018, pages 651-673.  DOI: 10.1016/j.scitotenv.2018.06.150 Available Online

Stackelberg, Paul, 2017, Groundwater quality in the glacial aquifer system, United States: US Geological Survey Fact Sheet 2017 - 3055, 4 p. Available Online

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