National Water-Quality Assessment (NAWQA) Program - High Plains Regional Groundwater (HPGW) Study

Significant Findings

High Plains Aquifer Studies

Major-Aquifer Studies

Becker, Mark F., Bruce, Breton W., Pope, Larry M., and Andrews, William J., 2002, Groundwater Quality in the Central High Plains Aquifer, Colorado, Kansas, New Mexico, Oklahoma, and Texas, 1999: U.S. Geological Survey Water-Resources Investigations Report, 02-4112, 64 pp.

Fahlquist, Lynne, 2003, Groundwater quality of the southern High Plains aquifer, Texas and New Mexico, 2001: U.S. Geological Survey Open-file Report 03-345, 59 p.

Pope, L.M., Bruce, B.W., and Hansen, C.V., 2001, Groundwater quality in quaternary deposits of the central High Plains aquifer, south-central Kansas, 1999: U.S. Geological Survey Water-Resources Investigations Report, 00-4259, 44 pp.

Stanton, J.S., and Qi, S.L., (2006), Groundwater quality of the northern High Plains aquifer, 1997, 2002-04: U.S. Geological Survey Scientific Investigations Report 2006-5138, 59 p.

Land-Use Study

Bruce, Breton W., Becker, Mark F., Pope, Larry M., and Gurdak, Jason J., 2003, Groundwater Quality Beneath Irrigated Agriculture in the Central High Plains Aquifer, 1999‐2000: U.S. Geological Survey Water-Resources Investigations Report 03-4219, 39 p.

Pope, Larry M., Bruce, Breton W., Rasmussen, Patrick P., and Milligan, Chad R., 2002, Quality of shallow groundwater in areas of recent residential and commercial development, Wichita, Kansas, 2000: U.S. Geological Survey Water-Resources Investigations Report, 02-4228, 75 pp.

Stanton, J.S., and Fahlquist, Lynne, (2006), Groundwater quality beneath irrigated cropland of the northern and southern High Plains aquifer, Nebraska and Texas, 2003-04: U.S. Geological Survey Scientific Investigations Report 2006-5196, 39 p., appendixes on compact disk.

Unsaturated-Zone Study

McMahon, P.B., Dennehy, K.F., Michel, R.L., Sophocleous, M.A., Ellett, K.M., and Hurlbut, D.B., 2003, Water movement through thick unsaturated zones overlying the Central High Plains aquifer, southwestern Kansas, 2000‐2001: U.S. Geological Survey Water-Resources Investigations Report, 03-4171, 35 pp.

McMahon, P.B., Dennehy, K.F., Bruce, B.W., Böhlke, J.K., Michel, R.L., Gurdak, J.J., and Hurlbut, D.A., 2006, Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, USA: Water Resources Research, 42, W03413, doi:10.1029/2005WR004417.

Scanlon, B.R., R.C. Reedy, D.A. Stonestrom, D.E. Prudic, and K.F. Dennehy, 2005, Impact of land use and land cover change on groundwater recharge and quality in the southwestern US: Global Change Biology, v. 11, p. 1577-1593.

Walvoord, M. A., F. M. Phillips, D. A. Stonestrom, R. D. Evans, P. C. Hartsough, B. D. Newman, and R. G. Striegl, 2003, A reservoir of nitrate beneath desert soils: Science, v. 302, p. 1021-1024.

Regional Transect Study

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, 35 pp.

P.B. McMahon, J.K. Böhlke, and T.M. Lehman, 2004, Vertical gradients in water chemistry and age in the southern High Plains aquifer, Texas, 2002 : USGS Scientific Investigations Report 2004-5053, 53 p., 13 figs.

McMahon, P.B., J.K. Böhlke, and C.P. Carney, (2007), Vertical gradients in water chemistry and age in the northern High Plains aquifer, Nebraska, 2003: U.S. Geological Survery Scientific Investigations Report 2006-5294, 35 p.

McMahon, P.B., J.K. Böhlke, and S.C. Christenson, 2004, Geochemistry, radiocarbon ages, and paleorecharge conditions along a transect in the central High Plains aquifer, southwestern Kansas, USA : Applied Geochemistry, vol. 19(11), 1655-1686.

Special Studies

Bruce, B.W. and Oelsner, G.P., 2001, Contrasting water quality from paired domestic/public supply wells, central High Plains: Journal of the American Water Resources Association, v. 37, No. 5, pp. 1389-1403.

McMahon, P.B., B.W. Bruce, M.F. Becker, L.M. Pope, and K.F. Dennehy, 2000, Occurrence of Nitrous Oxide in the Central High Plains Aquifer, 1999: Environmental Science & Technology, v. 34, pp. 4873-4875.

High Plains Aquifer (entire aquifer area)

Gurdak, J.J., McMahon, P.B., Dennehy, K.F., and Qi, S.L., (2009), Water quality in the High Plains aquifer, Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1999‐2004: U.S. Geological Survey Circular 1337, 63 p.

McMahon, P.B., Dennehy, K.F., Bruce, B.W., Gurdak, J.J., and Qi, S.L., (2007), Water-quality assessment of the High Plains aquifer, 1999-2004: U.S. Geological Survery Professional Paper 1749, 136 p.

Dennehy, K.F., 2000, High Plains regional ground-water study: U.S. Geological Survey Fact Sheet FS-091-00, 6 p.

Dennehy, K.F., Litke, D.W., and McMahon, P.B., 2002, The High Plains aquifer, USA: groundwater development and sustainability : In Hiscock, K.M., Rivett, M.O., and Davison, R.M. (eds.), Sustainable Groundwater Development, Geological Society, London, Special Publications, 193, p. 99-119.

Gurdak, J.J., and Qi, S.L., 2006, Vulnerability of Recently Recharged Groundwater in the High Plains Aquifer to Nitrate Contamination: USGS Scientific Investigations Report 2006-5050, 39 p.

Gurdak, J.J., Hanson, R.T., McMahon, P.B., Bruce, B.W., McCray, J.E., Thyne, G.D., and Reedy, R.C., (In Press), Climate variability controls on unsaturated water and chemical movement, High Plains aquifer, United States, Vadose Zone Journal

Gurdak, J.J., McCray, J.E., Thyne, G.D., and Qi, S.L., (In Press), Latin-hypercube approach to estimate uncertainty in ground-water vulnerability, Groundwater

Litke, D.W., 2001, Historical water-quality data for the High Plains Regional Groundwater study area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98: U.S. Geological Survey Water-Resources Investigations Report, 00-4254, 65 pp.

McMahon, P.B., and Böhlke, 2006, Regional patterns in the isotopic composition of natural and anthropogenic nitrate in groundwater, High Plains, USA: Environmental Science & Technology, v. 40, no. 9, pp 2965 - 2970.

McMahon, P.B., Dennehy, K.F., Bruce, B.W., Böhlke, J.K., Michel, R.L., Gurdak, J.J., and Hurlbut, D.A., 2006, Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, USA: Water Resources Research, 42, W03413, doi:10.1029/2005WR004417.

Qi, S.L., and Gurdak, J.J., 2006, Percentage of probability of nonpoint-source nitrate contamination of recently recharged groundwater in the High Plains aquifer: USGS Data Series DS-192 (GIS dataset).

Qi, Sharon L., Konduris, Alexandria, Litke, David W., and Dupree, Jean, 2002, Classification of irrigated land using satellite imagery, the High Plains aquifer, nominal date 1992: U.S. Geological Survey Water-Resources Investigations Report, 02-4236, 35 pp.

Qi, Sharon L., Konduris, Alexandria, Litke, David W., and Dupree, Jean, 2002, HPIRRLND_92--Location of irrigated land classified from satellite imagery-High Plains area, nominal date 1992: U.S. Geological Survey Open-File Report 2002-441 (GIS dataset).

Torres, J.M., Litke, D.W., and Qi, S.L., 1999, HPBEDROCK--bedrock formations underlying the High Plains aquifer: U.S. Geological Survey Open-File Report 99-214 (GIS dataset).

Walvoord, M. A., F. M. Phillips, D. A. Stonestrom, R. D. Evans, P. C. Hartsough, B. D. Newman, and R. G. Striegl, 2003, A reservoir of nitrate beneath desert soils: Science, v. 302, p. 1021-1024.

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