Search The Groundwater Resources Program Bibliography

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Methods Development -- Recharge
Sanford, W.E.; Nelms, D.L.; Pope, J.P.; Selnick, D.L., 2012, Quantifying components of the hydrologic cycle in Virginia using chemical hydrograph separation and multiple regression analysis: U.S. Geological Survey Scientific Investigations Report: 2011-5198

Groundwater Availability -- Floridan Aquifer
Williams, L.J., and Dixon, J.F., 2015, Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina: U.S. Geological Survey Data Series 926, 24 p., http://dx.doi.org/10.3133/ds926.

Methods Development -- Water Levels
Tillman, Fred D., 2009, Excel spreadsheet tools for analyzing groundwater level records and displaying information in ArcMap: U.S. Geological Survey Techniques and Methods Book 4, Chapter F1, 59 p.

Recharge
Hunt, R.J., Prudic, D.E., Walker, J.F., and Anderson, M.P., 2008, Importance of unsaturated zone flow for simulating recharge in a humid climate: Ground Water, v. 46, no. 4, p. 551-560.

Model Development -- Subsidence
Leake, S.A., and Galloway, D.L., 2007, MODFLOW ground-water model—User guide to the Subsidence and Aquifer-System Compaction Package (SUB-WT) for water-table aquifers: U.S. Geological Survey Techniques and Methods Book 6, Chapter A23, 42 p.

Model Development -- SEAWAT
Langevin, C.D. and Guo, W., 2006, MODFLOW/MT3DMS-based simulation of variable density ground water flow and transport Ground Water vol. 44, no. 3:339-351.

Methods Development -- Geophysics
Voytek, E.B., Drenkelfuss, A., Day-Lewis, F.D., Healy, R., Werkema, D., and Lane, J.W., Jr., 2013, 1DTempPro -- Analyzing temperature profiles for groundwater/surface-water exchange: Groundwater, 5 p., doi: 10.1111/gwat.12051.

Model Development
Langevin, C.D., Lebbe, L., Bakker, M., and Voss, C., eds., 2008, 20th Salt Water Intrusion Meeting, Program and Proceedings, June 23-27, 2008, Naples, Florida, U.S.A., 340 p.

Groundwater Use
Maupin, M.A, Senay, G.B., Kenny, J.F., and Savoca, M.E., 2012, A comparison of consumptive-use estimates derived from the simplified surface energy balance approach and indirect reporting methods: U.S. Geological Survey Scientific Investigations Report 2012-5005, 8 p.

Southwest Groundwater Resources
Tillman, F.D, Wiele, S.M., and Pool, D.R., 2015, A comparison of estimates of basin-scale soil-moisture evapotranspiration and estimates of riparian groundwater evapotranspiration with implications for water budgets in the Verde Valley, Central Arizona, USA: Journal of Arid Environments, v. 124, p. 278-291, http://dx.doi.org/10.1016/j.jaridenv.2015.09.005

Recharge
McMahon, P.B., Plummer, L.N., Bohlke, J.K., Shapiro, S.D., and Hinkle, S.R., 2011, A comparison of recharge rates in aquifers of the United States based on groundwater-age data: Hydrogeology Journal, DOI 10.1007/s10040-011-0722-5

Recharge--Pennsylvania
Heppner, C.S., and Nimmo, J.R., 2005, A computer program for predicting recharge with a master recession curve: U.S. Geological Survey Scientific Investigations Report 2005-5172.

Model Development -- MODFLOW
Harbaugh, A.W., 2010, A data-input program (MFI2005) for the U.S. Geological Survey modular groundwater model (MODFLOW-2005) and parameter estimation program (UCODE_2005): U.S. Geological Survey Open-File Report 2010-1057, 35 p.

Water Availability -- Great Lakes Basin
Haitjema, H.M, Feinstein, D.T., Hunt, R.J., and Gusyev, M.A., 2010, A hybrid finite difference and analytic element groundwater model: Ground Water: DOI: 10.1111/j.1745-6584.2009.00672.x

Model Development
Leake, S.A., Reeves, H.W., and Dickinson, J.E., 2010, A new capture fraction method to map how pumpage affects surface water flow. Ground Water v. 48, no. 5, p. 690–700. doi: 10.1111/j.1745-6584.2010.00701.x

Groundwater Availability -- Mississippi Embayment
Clark, B.R., and Freiwald, D.A., 2011, A new tool to assess groundwater resources in the Mississippi embayment: U.S. Geological Survey Fact Sheet 2011–3115, 4 p.

Recharge--Minnesota
Lorenz, D.L., and Delin, G.N., 2007, A regression model to estimate regional ground water recharge. Ground Water, v. 45, no. 2, p. 196-208. (doi:10.1111/j.1745-6584.2006.00273.x)

Model Development -- GWM
Barlow, P.M., Ahlfeld, D.P., and Granato, G.E., 2006, A simulation-optimization model for evaluation of ground-water development options constrained by minimum streamflow requirements and water-supply demands in Proceedings, MODFLOW and MORE 2006—Managing Ground Water Systems, Eileen Poeter, Mary Hill, Chunmiao Zheng, organizing committee: International Ground Water Modeling Center, Colorado School of Mines, Golden, CO, p. 399-403.

Methods Development -- Geophysics
Walsh, D., Turner, P., Grunewald, E., Zhang, H., Butler, J., Reboulet, E., Knobbe, S., Christy, T., Lane, J.W., Johnson, C.D., Munday, T., and Fitzpatrick, A., 2013, A small-diameter NMR logging tool for groundwater investigations: Groundwater, 13 p., doi: 10.1111/gwat.12024.

Groundwater Availability -- Southwest Alluvial Basin
Tillman, Fred D. and Leake, S.A., 2008, A visual representation of trends in groundwater conditions: Southwest Hydrology, January/February, p. 8-9.

Groundwater Use
Savoca, M.E., Senay, G.B., Maupin, M.A., Kenny, J.F., and Perry, C.A., 2013, Actual evapotranspiration modeling using the operational Simplified Surface Energy Balance (SSEBop) approach: U.S. Geological Survey Scientific Investigations Report 2013-5126, 16 p.

Model Development -- SEAWAT
Thorne, D., Langevin, 2006, Addition of simultaneous heat and solute transport and variable fluid viscosity to SEAWAT Computer and Geosciences vol. 32, 1758-1768.

Model Development -- Farm Package
Schmid, Wolfgang, Hanson, R.T., and Maddock III, Thomas, 2006, Advances and Applications of the Farm Process for MODFLOW-2000: Modflow and More 2006 Managing Groundwater Systems -- Conference Proceedings, International Ground Water Modeling Center, Golden, CO, May 21-24, 2006 , pp. 23-27

US-Mexico Border Environmnental Health Initiative
Duval, J.S., 2005, Aerial gamma-ray survey for parts of Cameron, Hidalgo, and Willacy Counties, Texas: U.S. Geological Survey Open-File Report 2005-1231.

Groundwater Availability -- Southwest Alluvial Basin
Tillman, Fred D., Leake, Stanley A., Flynn, Marilyn E., Cordova, Jeffrey T., and Schonauer, Kurt T., 2007, An online interactive map service for displaying ground-water conditions in Arizona: U.S. Geological Survey Open-File Report 2007-1436, 16 p.

Recharge Washington
Ely, D.M., 2006, Analysis of the sensitivity of simulated recharge to selected parameters for seven watersheds modeled using the precipitation-runoff modeling system: U.S. Geological Survey Scientific Investigations Report 2005-5041, 21 p.

Groundwater Availability -- Appalachian Plateaus
Nelms, D.L., Messinger, Terence, and McCoy, K.J., 2015, Annual and average estimates of water-budget components based on hydrograph separation and PRISM precipitation for gaged basins in the Appalachian Plateaus Region, 1900-2011: U.S. Geological Survey Data Series 944, 10 p. http://dx.doi.org/10.3133/ds944

Water Availability -- Great Lakes Basin
Holtschlag, D.J., 2010, Application guide for AFINCH (analysis of flows in networks of channels) described by NHDplus:   U.S. Geological Survey Scientific Investigations Report 2009-5188, 106 p.

Water Availability -- Great Lakes Basin
Koltun, G.F., and Holtschlag, D.J., 2010, Application of AFINCH as a tool for evaluating the effects of streamflow-gaging-network size and composition on the accuracy and precision of streamflow estimates at ungaged locations in the Southeast Lake Michigan Hydrologic Subregion: U.S. Geological Survey Scientific Investigations Report 2010–5020, 14 p.

Model Development -- SEAWAT
Herckenrath, D. Langevin, C.D., and Doherty, J., 2009, Application of a null space Monte Carlo method to a salt water intrusion model. The PEST conference 2009, November 2-4, 2009, Potomac, Maryland.

Methods Development -- Geophysics
Day-Lewis, F.D., Singha, Kamini, and Binley, A., 2005, Applying petrophysical models to radar traveltime and electrical-resistivity tomograms–assessing resolution-dependent limitations: Journal of Geophysical Research, v. 110, no. B8 doi:10.1029/2004JB003569, 17 p.

Groundwater Availability -- Southwest Alluvial Basin
Tillman, Fred D., Leake, Stanley A., Flynn, Marilyn E., Cordova, Jeffrey T., 2007, Arizona Ground-Water Conditions Interactive Map Service.

Groundwater Availability -- Southwest Alluvial Basin
Tillman, Fred D., Leake, Stanley A., Flynn, Marilyn E., Cordova, Jeffrey T., and Schonauer, Kurt T., 2008, Arizona Ground-Water Conditions Interactive Map. U.S. Geological Survey.

National Overviews
Focazio, M.J., Reilly, T.E., Rupert, M.G., and Helsel, D.R., 2002, Assessing Ground-Water Vulnerability to Contamination: Providing Scientifically Defensible Information for Decision Makers U.S. Geological Survey Circular 1224, 33 p.

High Plains Water Levels
Qi, S.L., and Christenson, Scott, 2010, Assessing groundwater availability in the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: U.S. Geological Survey Fact Sheet 2010–3008 (Revised March 2010), 4 p.

Groundwater Availability -- Northern Atlantic Coastal Plain
Masterson, J.P., Pope, J.P., Monti, Jack, Jr., and Nardi, M.R., 2011, Assessing groundwater availability in the North Atlantic Coastal Plain aquifer system: U.S. Geological Survey Fact Sheet 2011-3019, 4 p.

Model Development -- SEAWAT
Wolfert, M.A., Langevin, C.D., and Swain, E.D., 2004, Assigning boundary conditions to the Southern Inland and Coastal Systems (SICS) model using results from the South Florida Water Management Model (SFWMM). USGS OFR 2004-1195, 30 p.

Atlantic Coastal Zone
Barlow, P.M., 2000, Atlantic Coastal Zone U.S. Geological Survey Fact Sheet 085-00, 4 p.

St. Joseph River Basin
Duris, Joseph W., Howard W. Reeves, and James L. Kiesler, Jr., 2005, Atrazine Concentrations in Stream Water and Streambed Sediment Pore Water in the St. Joseph and Galien River Basins, Michigan and Indiana, May 2001-September 2003: U.S. Geological Survey Open-File Report 2004-1326, 25p.

National Overviews
Sun, R.J., Weeks, J.B., and Grubb, H.F., 1997, Bibliography of Regional Aquifer-System Analysis (RASA) studies, 1978-96 U.S. Geological Survey Water-Resources Investigations Report 97-4074, p.

Groundwater Availability -- Glacial Aquifer
Kahle, S.C. and Futornick, Z.O., 2012, Bibliography of groundwater resources of the glacial aquifer systems in Washington, Idaho, and northwestern Montana, 1905–2011: U.S. Geological Survey Open-File Report 2012-1053, 32 p.

Atlantic Coastal Zone
Barlow, P.M. and Wild, E.C., 2002, Bibliography on the Occurrence and Intrusion of Saltwater in Aquifers along the Atlantic Coast of the United States U.S. Geological Survey Open-File Report 02-235

Southwest Groundwater Resources
Heilweil, V.M., Solomon, D.K., and Gardner, P.M., 2006, Borehole environmnetal tracers for evaluating net infiltration and recharge through desert bedrock, Vadose Zone Jounal 5:98-120.

Groundwater Availability -- Central Valley
Faunt, C.C., Hanson, R.T., Belitz, Kenneth, and Rogers, Laurel, 2009, California\'s Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California\'s Central Valley: U.S. Geological Survey Fact Sheet 2009-3057, 4 p.

Groundwater/Surface-Water Interaction
Leake, S.A., 2011, Capture -- Rates and Directions of Groundwater Flow Don’t Matter! Ground Water, doi: 10.1111/j.1745-6584.2010.00797.x, 3 p.

High Plains Water Levels
McGuire, V.L., 2007, Changes in water levels and storage in the High Plains Aquifer, predevelopment to 2005: U.S. Geological Survey Fact Sheet 2007-3029, 4 p.

High Plains Water Levels
McGuire, V.L., 2011, Changes in water levels and storage in the High Plains Aquifer, predevelopment to 2009: U.S. Geological Survey Fact Sheet 2011-3069, 2 p.

High Plains Water Levels
McGuire, V.L., 2009, Changes in water levels and storage in the High Plains aquifer, predevelopment to 2007: U.S. Geological Survey Fact Sheet 2009–3005, 2 p.

Model Development -- SEAWAT
Langevin, C.D., Oude Essink, G.H.P., Panday, S., Bakker, M., Prommer, H., Swain, E.D., Jones, W., Beach, M., and M. Barcelo, 2004, Chapter 3, MODFLOW-based tools for simulation of variable-density groundwater flow: in Coastal Aquifer Management: Monitoring, Modeling, and Case Studies, (eds.) A. Cheng and D. Ouazar, Lewis Publishers, p. 49-76.

Saline Groundwater Resources
Gillip, J.A., 2014, Characterization of the structure, clean-sand percentage, dissolved-solids concentrations, and estimated quantity of groundwater in the Upper Cretaceous Nacatoch Sand and Tokio Formation, Arkansas: U.S. Geological Survey Scientific Investigations Report 2014-5068, 23 p., http://dx.doi.org/10.3133/sir20145068.

Saline Groundwater Resources
McMahon, P.B., Böhlke, J.K., Dahm, K.G., Parkhurst, D.L., Anning, D.W., and Stanton, J.S., 2015, Chemical considerations for an updated National assessment of brackish groundwater resources: Groundwater. doi: 10.1111/gwat.12367

Southwest Groundwater Resources
Anning, D.W. and Konieczki, A.D., 2005, Classification of hydrogeologic areas and hydrogeologic flow systems in the Basin and Range Physiographic Province, Southwestern United States: U.S. Geological Survey Professional Paper 1702, 37 p.

Karst -- Shenandoah Valley
Yager, R.M., Plummer, L.N., Kauffman, L.J., Doctor, D.H., Nelms, D.L., and Schlosser, Peter, 2013, Comparison of age distributions estimated from environmental tracers by using binary-dilution and numerical models of fractured and folded karst: Shenandoah Valley of Virginia and West Virginia, USA: Hydrogeology Journal: DOI 10.1007/s10040-013-0997-9, 25 p.

Karst -- Shenandoah Valley
Yager, R.M., Voss, C.I., and Southworth, S., 2009, Comparison of alternative repressentations of hydraulic-condcutivity anisotropy in folded fractured-sedimentary rock: modeling groundwater flow in the Shenandoah Valley (USA) Hydrogeology Journal, DOI 10.1007/s10040-008-0431-x

Model Development -- Grid Refinement
Mehl, S.W., Hill, M.C., Leake, S.A., 2006, Comparison of local grid refinement methods for MODFLOW Ground Water, v. 44, no. 6, p. 792-796.

Recharge--Minnesota
Delin, G.N., Healy, R.W., Lorenz, D.L., and Nimmo, J.R., 2007, Comparison of local- to regional-scale estimates of ground-water recharge in Minnesota, USA: Journal of Hydrology, v. 334, no. 1-2, p. 231-249. (doi:10.1016/j.jhydrol.2006.10.010)

Water Availability -- Great Lakes Basin
Sheets, R.A., and Simonson, L.A., 2006, Compilation of regional ground-water divides for principal aquifers corresponding to the Great Lakes basin, United States U.S. Geological Survey Scientific Investigations Report 2006-5102, 23 p.

Groundwater Availability -- Great Basin
Heilweil, V.M., and Brooks, L.E., eds, 2011, Conceptual model of the Great Basin carbonate and alluvial aquifer system: U.S. Geological Survey Scientific Investigations Report 2010-5193, 191 p.

Groundwater Availability -- Williston and Powder River Basins
Long, A.J., Aurand, K.R., Bednar, J.M., Davis, K.W., Mckaskey, J.D.R.G., and Thamke, J.N., 2014, Conceptual model of the uppermost principal aquifer systems in the Williston and Powder River structural basins, United States and Canada: U.S. Geological Survey Scientific Investigations Report 2014-5055, 41 p., with appendix, http://dx.doi. org/10.3133/sir20145055.

Water Availability -- Great Lakes Basin
Shaffer, K.H., 2008, Consumptive Water Use in the Great Lakes Basin: U.S. Geological Survey Fact Sheet 2008-3032, 6 p.

Water Availability -- Great Lakes Basin
Shaffer, K.H., and Runkle, D.L., 2007, Consumptive water-use coefficients for the Great Lakes Basin and climatically similar areas: U.S. Geological Survey Scientific Investigations Report 2007-5197, 191 p.

Methods Development -- Geophysics
Day-Lewis, F.D., White, E.A., Johnson, C.D., Lane, J.W. Jr., and Belaval, M., 2006, Continuous resistivity profiling to delineate submarine groundwater discharge--examples and limitations, The Leading Edge, Vol. 25, No. 6, 724-728 pp.

Model Development -- SEAWAT
Dausman, A.M., Doherty, J., and Langevin, C.D., 2009, Creative use of pilot points to address site and regional scale heterogeneity in a variable-density model. The PEST conference 2009, November 2-4, 2009, Potomac, Maryland.

Methods Development -- Water Levels/Streamflow
Eddy-Miller,C.A.; Constantz, J.; Wheeler, J.D.; Caldwell, R.R.; Barlow, J.R., 2012, Demonstrating usefulness of real-time monitoring at streambank wells coupled with active streamgages - Pilot studies in Wyoming, Montana, and Mississippi: U.S. Geological Survey Fact Sheet: 2012-3054

National Overviews
Alley, W.M., 2003, Desalination of Ground Water:Earth Science Perspectives U.S. Geological Survey Fact Sheet 075-03, 4 p.

Southwest Groundwater Resources
Leake, S.A., Konieczki, A.D., and Rees, J.A.H., 2000, Desert Basins of the Southwest U.S. Geological Survey Fact Sheet 086-00, 4 p.

US-Mexico Border Environmnental Health Initiative
Parcher, J.W., L.M. Norman, D.M. Papoulias, J.E. Stefanov, Z.D. Wilson, W.R. Page, R.H. Gary, 2006, Developing a Binational Geodatabase to Examine Environmental Health and Quality-of-Life Issues along the U.S.-Mexico Border GSDI-9 Conference Proceedings, 6-10 November, Santiago, Chile.

Groundwater Availability -- Central Valley
Faunt, C.C., Hanson, R.T., and Belitz, K., 2008, Development of a model to assess ground-water availability in California's Central Valley in Water Resources Impact, Volume 10, Number 1, p. 27-30.

Groundwater Availability -- Central Valley
Faunt, C.C., Belitz, K., and Hanson, R.T., 2010, Development of a three-dimensional model of sedimentary texture in valley-fill deposits of the Central Valley, California, USA, Hydrologeology Journal, 18, p. 625-649.

Groundwater Availability -- Mississippi Embayment
Hart, R.M., Clark, B.R., and Bolyard, S.E., 2008, Digital Surfaces and Thicknesses of Selected Hydrogeologic Units within the Mississippi Embayment Regional Aquifer Study (MERAS): U.S. Geological Survey Scientific Investigations Report 2008-5098.

Groundwater Availability -- Floridan Aquifer
Bellino, J.C., 2011, Digital surfaces and hydrogeologic data for the Floridan aquifer system in Florida and in parts of Georgia, Alabama, and South Carolina: U.S. Geological Survey Data Series 584.

Groundwater Availability -- Floridan Aquifer
Cannon, D.M., Bellino, J.C., and Williams, L.J., 2012, Digital surfaces and hydrogeologic data for the Mesozoic through early Tertiary rocks in the Southeastern Coastal Plain in parts of Mississippi, Alabama, Georgia, South Carolina, and Florida: U.S. Geological Survey Data Series 662, 13 p., available at http://pubs.usgs.gov/ds/662/

Methods Development -- Geophysics
Kennedy, J., Ferré, T.P.A., Güntner, A., Abe, M., and Creutzfeldt, B., 2014, Direct measurement of subsurface mass change using the variable baseline gravity gradient method: Geophysical Research Letters, v. 41, no. 8, p. 2827-2834.

Model Development -- GWM
Ahlfeld, D.P., Barlow, P.M., and Baker, K.M., 2011, Documentation for the State Variables Package for the Groundwater-Management Process of MODFLOW-2005 (GWM-2005): U.S. Geological Survey Techniques and Methods Book 6, Chapter A36, 45 p.

Model Development
Shoemaker, W.B., Kuniansky, E.L., Birk, S., Bauer, S., and Swain, E.D., 2008, Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005: U.S. Geological Survey Techniques and Methods Book 6, Chapter A24, 50 p.

Recharge -- Upper Colorado River Basin
Tillman, F.D., 2015, Documentation of input datasets for the soil-water balance groundwater recharge model of the Upper Colorado River Basin: U.S. Geological Survey Open-File Report 2015-1160, 17 p., http://dx.doi.org/10.3133/20151160.

Model Development -- MODFLOW
Niswonger, R.G., and Prudic, D.E., 2005, Documentation of the Streamflow-Routing (SFR2) Package to include unsaturated flow beneath streams--a modification to SFR1 U.S. Geological Survey Techniques and Methods Book 6, Chapter A13, 57 p.

Model Development -- MODFLOW
Niswonger, R.G., Prudic, D.E., and Regan, R.S., 2006, Documentation of the Unsaturated-Zone Flow (UZF1) Package for modeling unsaturated flow between the land surfcae and the water table with MODFLOW-2005 U.S. Geological Survey Techniques and Methods Book 6, Chapter A19, 62 p.

Drilling and Geophysical Logs
Williams, J.H.; Bird, P.H.; Conger, R.W.; Anderson, Alton, 2014, Drilling and geophysical logs of the tophole at an oil-and-gas well site, Central Venango County, Pennsylvania 2014: U.S. Geological Survey Open-File Report 2014-1194, 8 p., http://dx.doi.org/10.3133/ofr20141194.

Model Development -- SEAWAT
Langevin, C.D., and Hughes, J.D., 2009, Effect of numerical dispersion as a source of structural noise in the calibration of a highly parameterized saltwater intrusion model. The PEST conference 2009, November 2-4, 2009, Potomac, Maryland.

Methods Development -- Groundwater Flow
Masterson, J.P. and Garabedian, S.P., 2007, Effects of sea-level rise on ground water flow in a coastal aquifer system Ground Water, v. 45, No. 2, p. 209-217.

Model Development
Shoemaker, W.B., Cunningham, K.J., Kuniansky, E.L., and Dixon, J., 2008, Effects of turbulence on hydraulic heads and parameter sensitivities in preferential groundwater flow layers. Water Resour. Res., 44, W03501, doi:10.1029/2007WR006601.

Water Availability -- Great Lakes Basin
Coon, W.F., and Sheets, R.A., 2006, Estimate of ground water in storage in the Great Lakes Basin, United States, 2006 U.S. Geological Survey Scientific Investigations Reports 2006-5180, 19 p.

Groundwater Use
Hutson, S.S., Barber, N.L., Kenny, J.F., Linsey, K.S., Lumia, D.S., and Maupin, M.A., 2004, Estimated Use of Water in the United States in 2000: U.S. Geological Survey Circular 1268, 46 p.

Water Availability -- Great Lakes Basin
Mills, P.C., and Sharpe, J.B., 2010, Estimated withdrawals and other elements of water use in the Great Lakes Basin of the United States in 2005: U.S. Geological Survey Scientific Investigations Report 2010–5031, 95 p.

Methods Development -- Groundwater Flow
Franke, O.L., Reilly, T.E., Pollock, D.W., and LaBaugh, J.W., 1998, Estimating Areas Contributing Recharge to Wells--Lessons from Previous Studies U.S. Geological Survey Circular 1174, 14 p.

Recharge
Dripps, W.R., Hunt, R.J., and Anderson, M.P., 2006, Estimating recharge rates with analytic element models and parameter estimation. Ground Water 44(1):47-55.

Water Availability -- Great Lakes Basin
Buchwald, C.A., Luukkonen, C.L., and Rachol, C.M., 2010, Estimation of groundwater use for a groundwater-flow model of the Lake Michigan Basin and adjacent areas, 1864-2005: U.S. Geological Survey Scientific Investigations Report 2010-5068.

Water Availability -- Great Lakes Basin
Neff, B.P., Piggott, A.R., and Sheets, R.A., 2006, Estimation of shallow ground-water recharge in the Great Lakes basin: U.S. Geological Survey Scientific Investigations Report 2005-5284, 31 p.

Atlantic Coastal Zone
Ransom, C. III, Landmeyer, J.E., Logan, W.R., and Childress, J.M., 2006, Evaluation of the downward migration of saltwater to the upper Floridan Aquifer in the Savannah, Georiga, and Hilton Head Island, South Carolina, Area, South Carolina Department of Health and Environmental Control, Technical Publication No. 011-06, 48 p.

Groundwater Use
Haynes, J.V., and Senay, G.B., 2012, Evaluation of the relation between evapotranspiration and normalized difference vegetation index for downscaling the simplified surface energy balance model: U.S. Geological Survey Scientific Investigations Report 2012-5197, 8 p.

National Overviews
Galloway, D.L., Alley, W.M., Barlow, P.M., Reilly, T.E., and Tucci, P., 2003, Evolving Issues and Practices in Managing Ground-Water Resources: Case Studies on the Role of Science U.S. Geological Survey Circular 1247, 73 p.

Recharge
Nolan, B.T., Healy, R.W., Taber, P.E., Perkins, Kimberlie, Hitt, K.J., and Wolock, D.M., 2007, Factors influencing ground-water recharge in the eastern United States Journal of Hydrology, v. 332, no. 1-2, p. 187-205.

Effects of Climate Change on Groundwater Resources
Drexler, J.Z.; Knifong, Donna; Tuil, JayLee; Flint, L.E.; and Flint, A.L., 2013, Fens as whole-ecosystem gauges of groundwater recharge under climate change Journal of Hydrology, v.481, no. 25, pp.22-34.

Methods Development -- Groundwater Flow
Alley, W.M., Healy, R.W., LaBaugh, J.W., amd Reilly, T.E., 2002, Flow and storage in ground-water systems Science, v.296, no. 5575, p. 1985-1990.

National Overviews
Shapiro, A.M., 2002, Fractured-rock aquifers-Understanding an increasingly important source of water U.S. Geological Survey Fact Sheet 112-02, 2 p.

Model Development -- GSFLOW
Markstrom, S.L., Niswonger, R.G., Regan, R.S., Prudic, D.E., and Barlow, P.M., 2008, GSFLOW-Coupled Ground-water and Surface-water FLOW model based on the integration of the Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW-2005): U.S. Geological Survey Techniques and Methods Book 6, Chapter D1, 240 p.

Model Development -- GWM
Ahlfeld, D.P., Baker, K.M., and Barlow, P.M., 2009, GWM-2005 — A Groundwater-Management Process for MODFLOW-2005 with Local Grid Refinement (LGR) capability: U.S. Geological Survey Techniques and Methods Book 6, Chapter A33, 65 p.

Model Development -- GWM
Ahlfeld, D.P., Barlow, P.M., and Mulligan, A.E., 2005, GWM—A ground-water management process for the U.S. Geological Survey modular ground-water model (MODFLOW-2000): U.S. Geological Survey Open-File Report 2005-1072, 124 p.

Middle Rio Grande Basin
Plummer, L.N., Bexfield, L.M., Anderholm, S.K., Sanford, W.E., and Busenberg, E., 2004, Geochemical characterization of ground-water flow in the Santa Fe Group aquifer system, Middle Rio Grande Basin, New Mexico U.S. Geological Survey Water Resources Investigations Report 03-4131, p. 395

Groundwater Availability -- High Plains
Houston, N.A., Gonzales-Bradford, S.L., Flynn, A.T., Qi, S.L., Peterson, S.M., Stanton, J.S., Ryter, D.W., Sohl, T.L., and Senay, G.B., 2013, Geodatabase compilation of hydrogeologic, remote sensing, and water-budget-component data for the High Plains aquifer, 2011: U.S. Geological Survey Data Series 777, 12 p.

Methods Development -- Geophysics
Singha, K., Day-Lewis, F.D., and Lane, J.W. Jr., 2007, Geoelectrical evidence of bicontinnum transport in groundwater Geophysical Research Letters, Vol. 34, L12401, doi:10.1029/2007GL030019.

Methods Development -- Geophysics
Day-Lewis, F.D. and Singha, K., 2008, Geoelectrical inference of mass transfer parameters using temporal moments: Water Resour. Res., 44, W05201, doi:10.1029/2007WR006750.

Groundwater Availability -- Columbia Plateau
Kahle, S.C., Olsen, T.D., and Morgan, D.S.,, 2009, Geologic setting and hydrogeologic units of the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho: U.S. Geological Survey Scientific Investigations Map 3088, 1 sheet.

Groundwater Availability -- Mississippi Embayment
Hart, R.M. and Clark, B.R., 2008, Geophysical Log Database for the Mississippi Embayment Regional Aquifer Study (MERAS): U.S. Geological Survey Scientific Investigations Report 2008-5192.

Groundwater Availability -- Floridan Aquifer
Williams, L.J., Raines, J.E., and Lanning, A.E., 2013, Geophysical log database for the Floridan aquifer system and southeastern Coastal Plain aquifer system in Florida and parts of Georgia, Alabama, and South Carolina: U.S. Geological Survey Data Series 760, 11 p.

Water Availability -- Great Lakes Basin
Grannemann, N.G. and Reeves, H.W., 2006, Great Lakes Basin Water Availability and Use: U.S. Geological Survey Fact Sheet 2005-3113, 4 p.

Model Development -- Grid Refinement
Mehl, S. and Hill, M.C., 2010, Grid-size dependence of Cauchy boundary conditions used to simulate stream-aquifer interactions: Advances in Water Resources, 33(4):430-442, doi:10.1016/j.advwatres.2010.01.008.

National Overviews
1999, Ground Water Atlas of the United States U.S. Geological Survey Hydrologic Atlas 730

National Overviews
Winter, T.C., Harvey, J.W., Franke, O.L., and Alley, W.M., 1998, Ground Water and Surface - Water A Single Resource: U.S. Geological Survey Circular 1139, 79 p.

Atlantic Coastal Zone
Bratton, John F., Böhlke, J.K., Manheim, Frank T., Krantz, David E., 2004, Ground water beneath coastal bays of the Delmarva Peninsula: Ages and nutrients: Ground Water, vol. 42, no. 7, p. 1021-1034.

High Plains Water Levels
Bartolino, J.R., and Cunningham, W.L., 2003, Ground-Water Depletion Across the Nation U.S. Geological Survey Fact Sheet FS-103-03, 4 p.

National Overviews
Dennehy, K.F., 2005, Ground-Water Resources Program U.S. Geological Survey Fact Sheet 2005-3097, 4 p.

Methods Development -- Water Levels
Taylor, C.J. and Alley, W.M., 2001, Ground-Water-Level Monitoring and the Importance of Long-Term Water-Level Data U.S. Geological Survey Circular 1217, 68 p.

Groundwater Availability -- Carolina Coastal Plain
Campbell, B.G. and Coes, A.L., 2008, Ground-water availability in the Atlantic Coastal Plain Aquifers of North and South Carolina in proceedings of the 2008 South Carolina Water Resources Conference, October 14-15, 2008, at the Charleston Area Event Center, 4 p.

Recharge--Minnesota
Delin, G.N., and Falteisek, J.D., 2007, Ground-water recharge in Minnesota: U.S. Geological Survey Fact Sheet 2007-3002, 6 p.

Recharge
Delin, G.N., and Risser, D.W., 2007, Ground-water recharge in humid areas of the United States: A summary of ground-water resources program studies, 2003-2006: U.S. Geological Survey Fact Sheet 2007-3007, 4 p.

Southwest Groundwater Resources
Stonestrom. D.A., Constantz, J., Ferre, T.P.A., and Leake, S.A., 2007, Ground-water recharge in the arid and semi-arid southwestern United States: U.S. Geological Survey Professional Paper 1703, 414 p.

Middle Rio Grande Basin
Bartolino, J.R. and Cole, J.C., 2002, Ground-water resources of the Middle Rio Grande Basin, New Mexico U.S. Geological Survey Circular 1222, 132 p.

Middle Rio Grande Basin
Bartolino, J.R., Cole, J.C., and Hester, D.J., 2002, Ground-water resources of the Middle Rio Grande Basin, New Mexico U.S. Geological Survey Fact Sheet 088-02, 6 p.

Southwest Groundwater Resources
Webb, R.H, and Leake, S.A., 2006, Ground-water surface-water interactions and long-term change in riverine riparian vegetation in the southwestern United States: Journal of Hydrology 320, pp. 302-323.

Groundwater Availability -- Columbia Plateau
Morgan, D.S., Dinicola, R.S., and Bartolino, J.R., 2008, Groundwater Availability Assessment for the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho: U.S. Geological Survey Fact Sheet 2008-3086, 2 p.

Groundwater Availability
Reilly, T.E., Dennehy, K.F., Alley, W.M., and Cunningham, W.L., 2008, Groundwater Availability in the United States: U.S. Geological Survey Circular 1323, 70 p.

Groundwater Availability
Dennehy, K.F., Reilly, T.E., and Cunningham, W.L., 2015, Groundwater Availability in the United States: the value of quantitative regional assessments: Hydrogeology Journal, DOI 10.1007/s10040-015-1307-5, 4 p.

Groundwater Availability -- Central Valley
Faunt, C.C., ed., 2009, Groundwater Availability of the Central Valley Aquifer, California: U.S. Geological Survey Professional Paper 1766, 225 p.

Groundwater Availability -- Carolina Coastal Plain
Campbell, B.G., and Coes, A.L., eds., 2010, Groundwater availability in the Atlantic Coastal Plain of North and South Carolina U.S. Geological Survey Professional Paper 1773, 241 p., 7 pls.

Groundwater Availability -- Denver Basin Aquifer System
Paschke, S.S. ed., 2011, Groundwater availability of the Denver Basin aquifer system, Colorado: U.S. Geological Survey Professional Paper 1770, 274 p.

Groundwater Availability -- Mississippi Embayment
Clark, B.R., Hart, R.M., and Gurdak, J.J., 2011, Groundwater availability of the Mississippi embayment: U.S. Geological Survey Professional Paper 1785, 62 p.

Groundwater Availability -- Columbia Plateau
Snyder, D.T., and Haynes, J.V., , 2010, Groundwater conditions during 2009 and changes in groundwater levels from 1984 to 2009, Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho: U.S. Geological Survey Scientific Investigations Report 2010–5040, 12 p.

National Overviews
Konikow, L.F, 2013, Groundwater depletion in the United States (1900-2008): U.S. Geological Survey Scientific Investigations Report 2013-5079, 63 p.

Groundwater Availability -- Williston and Powder River Basins
Aurand, Katherine, 2013, Groundwater recharge estimates for the lower Tertiary and Upper Cretaceous Aquifers in the Williston and Powder River structural basins: Rapid City, South Dakota, South Dakota School of Mines and Technology, unpublished Master's thesis, 110 p.

Groundwater Availability -- Columbia Plateau
Burns, E.R, Snyder, D.T, Haynes, J.V., and Waibel, M.S., 2012, Groundwater status and trends for the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho: U.S. Geological Survey Scientific Investigations Report 2012-5261, 52 p.

Model Development -- Groundwater Flow
Reilly, T.E. and Harbaugh, A.W., 2004, Guidelines for Evaluating Ground-Water Flow Models U.S. Geological Survey Scientific Investigations Report 2004-5038.

Methods Development -- Heat
Stonestrom, D.A. and Constantz, J. (eds.), 2003, Heat as a tool for studing the movement of ground water near streams U.S. Geological Survey Circular 1260, 96 p.

Methods Development -- Unsaturated Zone
Perkins, K., and Nimmo, J., 2009, High-quality unsaturated zone hydraulic property data for hydrologic applications, Water Resour. Res., 45, W07417, doi:10.1029/2008WR007497.

Effects of Climate Change on Groundwater Resources
Dudley, R.W. and Hodgkins, G.A., 2013, Historical Groundwater Trends in Northern New England and Relations with Streamflow and Climatic Variables: Journal of the American Water Resources Association, DOI 10.1111/jawr.12080, 15 p.

Water Availability -- Great Lakes Basin
Hodgkins, G.A., Dudley, R.W., and Aichele, S.S., 2007, Historical changes in precipitation and streamflow in the U.S. Great Lakes Basin, 1915–2004: U.S. Geological Survey Scientific Investigations Report 2007–5118, 31 p.

Methods Development -- Groundwater Flow
Kuniansky, E.L., Lowery, M.A., and Campbell, B.G., 2009, How processing digital elevation models can affect simulated water budgets Ground Water 47, no. 1: 97-107.

Methods Development -- Groundwater Sampling Fractured Rock
Harte, P.T., 2013, Hydraulically Controlled Discrete Sampling from Open Boreholes: Ground Water: DOI: 10.1111/gwat.12120

Effects of Climate Change on Groundwater Resources
Dickinson, J.E., Hanson, R.T., and Predmore, S.K., 2014, HydroClimATe -- Hydrologic and climatic analysis toolkit: U.S. Geological Survey Techniques and Methods 4-A9, 49 p, http://dx.doi.org/10.3133/tm4a9.

Groundwater Availability -- Columbia Plateau
Kahle, S.C., Morgan, D.S., Welch, W.B., Ely, D.M., Hinkle, S.R., Vaccaro, J.J., and Orzol, L.L., 2011, Hydrogeologic framework and hydrologic budget components of the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho: U.S. Geological Survey Scientific Investigations Report 2011–5124, 66 p.

Karst
Taylor, C.J., Nelson, H.L., Hileman, G., and Kaiser, W.P., 2005, Hydrogeologic framework mapping of shallow, conduit-dominated karst--components of a regional GIS-based approach, in U.S. Geological Survey Karst Interest Group Proceedings, Rapid City, South Dakota, September 12-15, 2005, Kuniansky, E.L., (ed.): U.S. Geological Survey Scientific Investigations Report 2005-5160, p. 103-113.

Water Availability -- Great Lakes Basin
Lampe, D.C., 2009, Hydrogeologic framework of bedrock units and initial salinity distribution for a simulation of groundwater flow for the Lake Michigan Basin: U.S. Geological Survey Scientific Investigations Report 2009-5060, 49 p.

Groundwater Availability -- Williston and Powder River Basins
Thamke, J.N., LeCain, G.D., Ryter, D.W., Sando, Roy, and Long, A.J., 2014, Hydrogeologic framework of the uppermost principal aquifer systems in the Williston and Powder River structural basins, United States and Canada: U.S. Geological Survey Scientific Investigations Report 2014-5047, 38 p., http://dx.doi.org/10.3133/sir20145047.

Atlantic Coastal Zone
Krantz, David E., Frank T. Manheim, John F. Bratton, Daniel J. Phelan, 2004, Hydrogeologic setting and ground water flow beneath a section of Indian River Bay, Delaware: Ground Water, vol. 42, no. 7, p. 1035-1051.

Groundwater Availability -- Northern Atlantic Coastal Plain
Masterson, J.P., Pope, J.P., Monti, Jack, Jr, Nardi, M.R., Finkelstein, J.S., and McCoy, K.J., 2013, Hydrogeology and hydrologic conditions of the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina: U.S. Geological Survey Scientific Investigations Report 2013-5133, 76 p.

US-Canada Transboundary Studies--Aquifer Characterization
Nastev, M., Lamontagne, C., Morin, R., Williams, J., Lavigne, M., Croteau, A., Tremblay, T., Godin, R., Dagenais, M., and Rouleau, A., 2006, Hydrogeology of a transboundary sandstone aquifer, Quebec – New York (poster): American Geophysical Union Fall Meeting, Session H23B, December 5-9, 2005, San Francisco, CA.

US-Canada Transboundary Studies--Aquifer Characterization
Williams, J.H., Reynolds, R.J., Franzi, D.A., Romanowicz, E.A., and Paillet, F.L., 2010, Hydrogeology of the Potsdam Sandstone in Northern New York: Canadian Water Resources Journal, Vol. 35, No. 4, p. 399-416.

Saline Groundwater Resources
Osborn, N.I., Smith, S.J., and Seger, C.H., 2013, Hydrogeology, distribution, and volume of saline groundwater in the southern midcontinent and adjacent areas of the United States: U.S. Geological Survey Scientific Investigations Report 2013-5017, 58 p.

Groundwater Availability -- Appalachian Plateaus
McCoy, K.J., Yager, R.M., Nelms, D.L., Ladd, D.E., Monti, Jack, Jr., and Kozar, M.D., 2015, Hydrologic budget and conditions of Permian, Pennsylvanian, and Mississippian aquifers in the Appalachian Plateaus Physiographic Province: U.S. Geological Survey Scientific Investigations Report 2015–5106, 77 p., http://dx.doi.org/10.3133/sir20155106.

Groundwater Availability -- Appalachian Plateaus
McCoy, K.J., Yager, R.M., Nelms, D.L., Ladd, D.E., Monti, Jack, Jr., and Kozar, M.D., 2015, Hydrologic budget andconditions of Permian, Pennsylvanian, and Mississippian aquifers in the Appalachian Plateaus Physiographic Province: U.S. Geological Survey Scientific Investigations Report 2015-5106, 77 p., http://dx.doi.org/10.3133/sir20155106.

Model Development -- SEAWAT
Dausman, A.M., Doherty, J., Langevin, C.D., and Dixon, J., 2010, Hypothesis testing of buoyant plume migration using a highly parameterized variable-density groundwater model at a site in Florida, USA. Hydrogeology Journal 18, no. 1. DOI: 10.1007/s10040-009-0511-6.

Model Development
Niswonger, R.G., Prudic, D.E., Pohll, G., Constantz, J., 2005, Incorporating seepage losses into the unsteady streamflow equations for simulating intermittent flow along mountain front streams, Water Resources Research, vol. 41, W06006

Model Development -- Geophysics
Marksamer, A.J., Person, M.A., Day-Lewis, F.D., Lane, J.W., Jr., Cohen, D., Dugan, B., Kooi, H., and Willett, M., 2007, Integrating geophysical, hydrologic, geochemical and isotopic data with numerical modeling to understand the freshwater-saltwater interface on Nantucket Island, Massachusetts, in Hyndman, D.W., Day-Lewis, F.D., and Singha K., eds., Subsurface Hydrology — Data Integration for Properties and Processes: American Geophysical Union, Monograph 171, p.143-159.

Groundwater Availability -- Williston and Powder River Basins
Bednar, J.M., 2013, Interaction of groundwater and surface water in the Williston and Powder River structural basins: Rapid City, South Dakota, South Dakota School of Mines and Technology, unpublished Master's thesis, 107 p.

US-Mexico Border Environmnental Health Initiative
Papoulias, D.M., Parcher, J.W., Stefanov, J., Page, W.R., 2006, Interdisciplinary Science in Support of Environmental Health along the United States—Mexico Border U.S. Geological Survey Fact Sheet 06-3054

US-Mexico Border Environmnental Health Initiative
Buckler, D. and Stefanov, J., 2004, Internet Map Service for Environmental Health in the U.S. Mexico Border Region USGS Fact Sheet 2004-3140

Groundwater Availability -- Central Valley
Schmid, W. and Maddock III, T., 2004, Interstate and International Conjunctive Surface-Water/Ground-Water Management using the Farm Package for MODFLOW-2000 Transboundary Waters Management Symposium, Proceedings Paper, Tucson, Arizona, November 16-19, 2004

Methods Development -- Geophysics
Loke, M.H., and Lane, J.W., Jr., 2004, Inversion of data from electrical resistivity imaging surveys in water-covered areas: Exploration Geophysics, v. 35, p. 266-271.

Methods Development -- Geophysics
Henderson, R.D., Day-Lewis, F.D. and Harvey, C.F., 2009, Investigation of aquifer estuary interaction using wavelet analysis of fiber-optic temperature data, Geophys. Res. Lett., 36, L06403, doi:10.1029/2008GL036926.

Model Development -- MODFLOW
Banta, E.R., Poeter, E.P., Doherty, J.E., and Hill, M.C., 2006, JUPITER: Joint Universal Parameter IdenTification and Evaluation of Reliability—An application programming interface (API) for model analysis U.S. Geological Survey Techniques and Methods Book 6, Chapter E1, 268 p.

Water Availability -- Great Lakes Basin
Wilcox, D.A., Thompson, T.A., Booth, R.K., and Nicholas, J.R., 2007, Lake-level variability and water availability in the Great Lakes U.S. Geological Survey Circular 1311, 25 p.

Water Availability
Wilcox, D.A., Thompson, T.A., Booth, R.K., and Nicholas, J.R., 2007, Lake-level variability and water availability in the Great Lakes: U.S. Geological Survey Circular 1311, 25 p.

Land Subsidence
Galloway, D.L., Jones, D.R., and Ingebritsen, S.E., 2000, Land Subsidence in the United States U.S. Geological Survey Fact Sheet 165-00, p. 4

Land Subsidence
Galloway, D.L., Jones, D.R., and Ingebritsen, S.E., 1999, Land Subsidence in the United States U.S. Geological Survey Circular 1182, p. 177

Groundwater/Surface-Water Interaction
Konrad, C.P., 2006, Location and timing of river-aquifer exchanges in six tributaries to the Columbia River in the Pacific Northwest of the United States Journal of Hydrology, 329, p. 444-470

Groundwater/Surface-Water Interaction
Konard, C.P., 2006, Longitudinal hydraulic analysis of river-aquifer exchanges Water Resources Research, Vol. 42, W08425, doi:10.1029/2005WR004197

Model Development -- SEAWAT
Langevin, C.D., Shoemaker, W.B., and Guo, Weixing, 2004, MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model–Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT): U.S. Geological Survey Open-File Report 03-426, 43 p.

Model Development -- Grid Refinement
Mehl, S., and Hill, M.C., 2005, MODFLOW-2005, The U.S. Geological Survey Modular Ground-Water Model -- Documentation of Shared Node Local Grid Refinement (LGR) and the Boundary Flow and Head (BFH) Package, Techniques and Methods, Techniques and Methods, TM6-A12.

Model Development -- Grid Refinement
Mehl, S.W., and Hill, M.C., 2013, MODFLOW-LGR -- Documentation of ghost node local grid refinement (LGR2) for multiple areas and the boundary flow and head (BFH2) package: U.S. Geological Survey Techniques and Methods Book 6, Chapter A44, 43 p.

Model Development -- Grid Refinement
Mehl, S.W., and Hill, M.C., 2011, MODFLOW–LGR -- Modifications to the Streamflow-Routing Package (SFR2) to Route Streamflow through Locally Refined Grids: U.S. Geological Survey Techniques and Methods Book 6, Chapter A34, 15 p.

Model Development -- Geophysics
Ivanov, J., Miller, R.D., Lane, J.W., Jr., and Lacombe, P.J., 2006, Mapping a shallow fault zone and dipping layers using MASW technique with a landstreamer: Geophysics, v. 71, no. 5, p. A39-A42.

Methods Development -- Geophysics
Henderson, R.D., Day-Lewis, F.D., Harvey, C.F., Abarca, E., Karam, H.N., Liu, L., and Lane, J.W., Jr., 2010, Marine electrical resistivity imaging of submarine groundwater discharge—Sensitivity analysis and application in Waquoit Bay, Massachusetts, USA: Hydrogeology Journal, v. 18, p. 173-185.

Land Subsidence
Bawden, G.W., Sneed, M., Stork, S.V., and Galloway, D.L., 2003, Measuring human-induced land subsidence from space U.S. Geological Survey Fact Sheet FS-069-03, p. 4

Groundwater Availability -- Southwest Alluvial Basin
Tillman, F.D, Leake, S.A., Flynn, M.E., Cordova, J.T., Schonauer, K.T., and Dickinson, J.E., 2008, Methods and indicators for assessment of regional ground-water conditions in the southwestern United States: U.S. Geological Survey Scientific Investigations Report 2008-5209, 22 p.

Model Development
Banta, E.R., 2011, ModelMate -- A graphical user interface for model analysis: U.S. Geological Survey Techniques and Methods Book 6, Chapter E4, 31 p.

Model Development
Winston, R.B., 2009, ModelMuse-A graphical user interface for MODFLOW-2005 and PHAST: U.S. Geological Survey Techniques and Methods Book 6, Chapter A29, 52 p.

Methods Development -- Groundwater Flow
Leake, S.A., 1997, Modeling Ground-Water Flow with MODFLOW and Related Programs U.S. Geological Survey Fact Sheet 121-97, 4 p.

Model Development -- Unsaturated Zone
Niswonger, R.G., and D.E. Prudic., 2004, Modeling variably saturated flow using kinematic waves in MODFLOW, in Groundwater Recharge in a Desert Environment: The Southwestern United States, edited by Hogan, J.F., Phillips, F.M., and Scanlon, B.R. Water Science and Applications Series, v. 9, American Geophysical Union, Washington, D.C., 101-112.

Effects of Climate Change on Groundwater Resources
Mastin, Mark, and Josberger, Edward, 2014, Monitoring recharge in areas of seasonally frozen ground in the Columbia Plateau and Snake River Plain, Idaho, Oregon, and Washington: U.S. Geological Survey Scientific Investigations Report 2014-5083, 64 p., http://dx.doi.org/10.3133/sir20145083.

Model Development -- SEAWAT
Dausman, A.M. and Langevin, C.D., 2005, Movement of the saltwater interface in the Surficial Aquifer System in response to hydrologic stresses and water-management practices, Broward County, Florida U.S. Geological Survey Scientific Investigations Report 2004-5256.

Recharge--North Carolina
Coes, A.L., Spruill, T.B., and Thomasson, M.J., 2007, Multiple-method estimation of recharge rates at diverse locations in the North Carolina Coastal Plain Hydrogeology Journal, 16p.

Recharge--Pennsylvania
Heppner, C.S., Nimmo, J.R., Folmar, G.J., Gburek, W.J., and Risser, D.W., 2007, Multiple-methods investigation of recharge at a humid-region fractured rock site, Pennsylvania, USA Hydrogeology Journal, 13 p.

Model Development -- SUTRA/FL Platform
Hughes, J.D., Sanford, W.E., and Vacher, H.L., 2005, Numerical simulation of double-diffusive finger convection, Water Resources Research, vol. 41, W01019

Groundwater Availability -- Columbia Plateau
Ely, D.M., Burns, E.R., Morgan, D.S., and Vaccaro, J.J., 2014, Numerical simulation of groundwater flow in the Columbia Plateau Regional Aquifer System, Idaho, Oregon, and Washington (ver. 1.1, January 2015): U.S. Geological Survey Scientific Investigations Report 2014-5127, 90 p., http://dx.doi.org/10.3133/sir20145127.

Model Development -- SEAWAT
Langevin, C.D. and Dausman, A.M., 2005, Numerical simulation of saltwater intrusion in response to sea-level rise: American Society of Civil Engineers, Anchorage, Alaska, May 15-19, 2005.

Methods Development -- Geophysics
Cohen, D., Person, M., Wang, P., Gable, C.W., Hutchinson, D., Marksamer, A., Dugan, B., Kooi, H., Groen, K., Lizarraldc, D., Evans, R.L., Day-Lewis, F.D., and Lane, J.W., Jr., 2009, Origin and extent of fresh paleowaters on the Atlantic continental shelf: Ground Water, v.48, p. 143-158.

Sparta Aquifer Water Levels
Schrader, T.P., 2008, Potentiometric surface in the Sparta-Memphis Aquifer of the Mississippi Embayment, Spring 2007: U.S. Geological Survey Scientific Investigations Map 3014.

Groundwater Availability -- Floridan Aquifer
Kinnaman, S.L., and Dixon, J.F., 2011, Potentiometric surface of the Upper Floridan aquifer in Florida and parts of Georgia, South Carolina, and Alabama, May – June 2010: U.S. Geological Survey Scientific Investigations Map 3182, 1 sheet.

US-Mexico Border Environmnental Health Initiative
Page, W.R., VanSistine, D Paco, and Turner, K.J., 2005, Preliminary geologic map of southernmost Texas and parts of Tamaulipas and Nuevo Leon, Mexico U.S. Geological Survey Open-File Report, 1:250,000-scale.

National Overviews
Principal Aquifers of the United States--Aquifers of Alluvial and Glacial Origin, 1:2,500,000 (download spatial data set)

National Overviews
Principal Aquifers of the United States--Printed wall map, 1:5,000,000

National Overviews
Principal Aquifers of the United States--U.S. Aquifers data, 1:2,500,000 (download spatial data set)

Atlantic Coastal Zone
Pope, J.P., McFarland, E.R., Banks, R.B., 2008, Private domestic-well characteristics and the distribution of domestic withdrawals among aquifers in the Virginia Coastal Plain: U.S. Geological Survey Scientific Investigations Report 2007-5250, 47 p.

Water Availability -- Great Lakes Basin
Arihood, L.D., 2009, Processing, analysis, and general evaluation of well-driller records for estimating hydrogeologic parameters of the glacial sediments in a ground-water flow model of the Lake Michigan Basin: U.S. Geological Survey Scientific Investigations Report 2008-5184, 26 p.

Water Availability
Alley, W.M., Evenson, E.J., Barber, N.L., Bruce, B.W., Dennehy, K.F., Freeman, M.C., Freeman, W.O., Fischer, J.M., Hughes, W.B., Kennen, J.G., Kiang, J.E., Maloney, K.O., Musgrove, MaryLynn, Ralston, Barbara, Tessler, Steven, and Verdin J.P., 2013, Progress toward establishing a national assessment of water availability and use: U.S. Geological Survey Circular 1384, 34 p.

Groundwater Availability -- Water Quality.
McMahon, P.B., Caldwell, R.R., Galloway, J.M., Valder, J.F. and Hunt, A.G., 2015, Quality and Age of Shallow Groundwater in the Bakken Formation Production Area, Williston Basin, Montana and North Dakota Groundwater, vol. 53, p. 81-94. doi: 10.1111/gwat.12296

Groundwater/Surface-Water Interaction
Sanford, W.E., Nelms, D.L., Pope, J.P., and Selnick, D.L., 2012, Quantifying components of the hydrologic cycle in Virginia using chemical hydrograph separation and multiple regression analysis: U.S. Geological Survey Scientific Investigations Report 2011-5198, 152 p.

Model Development -- SEAWAT
Dausman, A.M., Doherty, J., Langevin, C.D., and Sukop, M.C., 2010, Quantifying data worth toward reducing predictive uncertainty. Ground Water, early online release. doi: 10.1111/j.1745-6584.2010.00679.x.

Effects of Climate Change on Groundwater Resources
Dudley, R.W., Hodgkins, G.A., Shanley, J.B., and Mack, T.J., 2010, Quantifying effects of climate change on the snowmelt-dominated groundwater resources of northern New England: U.S. Geological Survey Fact Sheet 2010–3104, 4p.

National Overviews
Cunningham, W.L., 2001, Real-Time Ground-Water Data for the Nation U.S. Geological Survey Fact Sheet 090-01, 2 p.

Water Availability -- Great Lakes Basin
Feinstein, D.T., Hunt, R.J., and Reeves, H.W., 2010, Regional groundwater-flow model of the Lake Michigan Basin in support of Great Lakes Basin Water Availability and Use Studies: U.S. Geological Survey Scientific Investigations Report 2010-5109, 379p.

Water Availability and Use
Barlow, P.M. and others, 2002, Report to Congress -- Concepts for National Assessment of Water Availability and Use: U.S. Geological Survey Circular 1223, 34 p.

Groundwater Availability -- Alaska
Callegary, J.B., Kikuchi, C.P., Koch, J.C., Lilly, M.R., and Leake, S.A., 2013, Review: Groundwater in Alaska Hydrogeology Journal, v. 21, no. 1, pp. 25-39. 10.1007/s10040-012-0940-5.

Model Development -- MODFLOW
Konikow, L.F., Hornberger, G.Z., Halford, K.J., and Hanson, R.T., 2009, Revised Multi-Node Well (MNW2) Package for MODFLOW ground-water flow model: U.S. Geological Survey Techniques and Methods Book 6, Chapter A30, 67 p.

Groundwater Availability -- Floridan Aquifer
Williams, L.J., and Kuniansky, E.L., 2015, Revised hydrogeologic framework of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina: U.S. Geological Survey Professional Paper 1807, 140 p., 23 pls., http://dx.doi.org/10.3133/pp1807.

Groundwater/Surface-Water Interaction
Huntington, J.L., and Niswonger, R.G., 2012, Role of surface-water and groundwater interactions on projected summertime streamflow in snow dominated regions: An integrated modeling approach: Water Resour. Res., 48, W11524, doi:10.1029/2012WR012319

Model Development -- SEAWAT
Langevin, C.D., Thorne, D.T., Jr., Dausman, A.M., Sukop, M.C., and Guo, W., 2008, SEAWAT Version 4: A computer program for simulation of Multi-Species Solute and Heat Transport: U.S. Geological Survey Techniques and Methods Book 6, Chapter A22, 39 p.

Model Development -- SEAWAT
Langevin, C.D., 2009, SEAWAT: A Computer Program for Simulation of Variable-Density Groundwater Flow and Multi-Species Solute and Heat Transport: U.S. Geological Survey Fact Sheet 2009-3047, 2 p.

Model Development -- SUTRA
Voss, C. I., and Provost, A. M., 2002, SUTRA - A model for saturated-unsaturated variable-density ground-water flow with solute or energy transport, U.S. Geological Survey Water-Resources Investigations Report 02-4231, 250 p.

Methods Development -- Recharge
Westenbroek, S.M., Kelson, V.A., Dripps, W.R., Hunt, R.J., and Bradbury,K.R., 2010, SWB -- A modified Thornthwaite-Mather Soil-Water-Balance code for estimating groundwater recharge: U.S. Geological Survey Techniques and Methods Book 6, Chapter A31, 60 p.

Model Development -- GWM
Barlow, P.M., and Reichard, E.G., 2010, Saltwater intrusion in coastal regions of North America: Hydrogeology Journal, v. 18, no. 1, p. 247- 260, DOI 10.1007/s10040-009-0514-3.

Recharge
Juckem, P.F., Hunt, R.J., and Anderson, M.P., 2005, Scale effects of hydrostratigraphy and recharge zonation on base flow Ground Water, v. 44, no. 3, p. 362-370.

US-Mexico Border Environmnental Health Initiative
Buckler, D. and Strom, E., 2004, Science Data in Support of Environmental Health Studies in the U.S.-Mexico Border Region USGS Fact Sheet 2004-3013

Groundwater Availability -- High Plains
Stanton, J.S., Qi, S.L., Ryter, D.W., Falk, S.E., Houston, N.A., Peterson, S.M., Westenbroek, S.M., and Christenson, S.C., 2011, Selected approaches to estimate water-budget components of the High Plains, 1940 through 1949 and 2000 through 2009: U.S. Geological Survey Scientific Investigations Report 2011–5183, 79 p.

Groundwater Availability -- Carolina Coastal Plain
Harrelson, L.G., and Fine, J.M., 2006, Selected well data used in determining Groundwater Availability in the North and South Carolina Atlantic Coastal Plain Aquifer Systems USGS Open File Report 2006-1298, 81 p.

Groundwater Availability -- Central Valley
Hanson, R.T., Faunt, C.C., and Schmid, W., 2006, Simulation of Conjunctive Water Use in the Central Valley using the Farm Process for MODFLOW 4th Biennial CALFED Science Conference 2006--Making Sense of Complexity: Science for a Changing Environment, October 23-25, 2006, Sacramento, CA.

Model Development -- SEAWAT
Langevin, Christian D., Swain, Eric D., and Wolfert, Melinda A., 2004, Simulation of Integrated Surface-Water/Ground-Water Flow and Salinity for a Coastal Wetland and Adjacent Estuary: USGS OFR 2004-1097, 30 p.

Model Development -- Farm Package
Schmid, W., and Hanson, R.T., 2007, Simulation of Intra- or Trans-Boundary Water-Rights Hierarchies using the Farm Process for MODFLOW-2000, ASCE Journal of Water Resources Planning and Management, Vol. 133, No. 2, pp. 166-178 ( DOI: 10.1061/ (ASCE) 0733-9496 (2007) 133:2 (166)).

Model Development -- SEAWAT
Langevin, C.D., 2001, Simulation of ground-water discharge to Biscayne Bay, southeastern Florida: U.S. Geological Survey Water-Resources Investigations Report 00-4251, 127 p.

Karst -- Shenandoah Valley
Yager, R.M., Southworth, Scott, and Voss, C.I., 2008, Simulation of ground-water flow in the Shenandoah Valley, Virginia and West Virginia, using variable-direction anisotropy in hydraulic conductivity to represent bedrock structure: U.S. Geological Survey Scientific Investigations Report 2008-5002, 54 p.

Model Development
Sanford, W.E., Pope, J.P., and Nelms, D.L., 2009, Simulation of groundwater-level and salinity changes in the Eastern Shore, Virginia: U.S. Geological Survey Scientific Investigations Report 2009–5066, 125 p.

Model Development -- SEAWAT
Langevin, C.D., Swain, E.D., and Wolfert, M.A., 2005, Simulation of integrated surface-water/ground-water flow and salinity for a coastal wetland and adjacent estuary Journal of Hydrology 314, 212-234.

Model Development -- SEAWAT
Langevin, C.D., 2003, Simulation of submarine ground water discharge to a marine estuary: Biscayne Bay, Florida: Biscayne Bay, Florida: Ground Water 41, no. 6: 758-771.

Groundwater Availability -- Great Basin
Brooks, L.E., Masbruch, M.D., Sweetkind, D.S., and Buto, S.G., 2014, Steady-state numerical groundwater flow model of the Great Basin carbonate and alluvial aquifer system: U.S. Geological Survey Scientific Investigations Report 2014-5213, 124 p., 2 pl. http://dx.doi.org/10.3133/sir20145213.

National Overviews
1998, Strategic Directions for the U.S. Geological Survey Ground-Water Resources Program A Report to Congress

Groundwater/Surface-Water Interaction
Barlow, P.M., and Leake, S.A., 2012, Streamflow depletion by wells -- Understanding and managing the effects of groundwater pumping on streamflow: U.S. Geological Survey Circular 1376, 84 p.

National Overviews
Alley, W.M., Reilly, T.E., and Franke, O.L., 1999, Sustainability of Ground-Water Resources U.S. Geological Survey Circular 1186, 79 p.

Model Development -- SUTRA
Provost, A.M., 2002, SutraPrep, a pre-processor for SUTRA, a model for ground-water flow with solute or energy transport: U.S. Geological Survey Open-File Report 02-376, 43 p.

Groundwater Availability -- Floridan Aquifer
Kinnaman, S.L., 2011, Synoptic water-level measurements of the Upper Floridan aquifer in Florida and in parts of Georgia, South Carolina, and Alabama, May-June 2010: U.S. Geological Survey Data Series 639, 107 p.

Groundwater Availability -- Floridan Aquifer
Kuniansky, E.L., and Bellino, J.C., 2012, Tabulated transmissivity and storage properties of the Floridan aquifer system in Florida and parts of Georgia, South Carolina, and Alabama: U.S. Geological Survey Data Series 669, 37 p.

Model Development -- Farm Package
Schmid, Wolfgang, and Hanson, R.T., 2009, The Farm Process version 2 (FMP2) for MODFLOW-2005—Modifications and upgrades to FMP1: U.S. Geological Survey Techniques and Methods Book 6, Chapter A32, 101 p.

Groundwater Availability -- Mississippi Embayment
Clark, B.R., and Hart, R.M., 2009, The Mississippi Embayment Regional Aquifer Study (MERAS): Documentation of a groundwater-flow model constructed to assess water availability in the Mississippi Embayment: U.S. Geological Survey Scientific Investigations Report 2009-5172, 61 p.

Model Development -- Grid Refinement
Mehl, S.W., and Hill, M.C., 2007, The U.S. Geological Survey modular ground-water model—Documentation of the multiple-refined-areas capability of local grid refinement (LGR) and the boundary flow and head (BFH) package: U.S. Geological Survey Techniques and Methods Book 6, Chapter A21, 13 p.

Recharge--Great Lakes
Gebert, W.A., Kennedy, J.L., and Hunt, R.J., 2005, The importance of spatial and temporal variability in recharge in Neff, B.P., Piggott, A.R., and Sheets, R.A., Estimation of shallow ground-water recharge in the Great Lakes Basin: U.S. Geological Survey Scientific Investigations Report 2005-5284, 20 p.

Model Development -- SEAWAT
Bakker, M., Oude Essink, G.H.P., and Langevin, C.D., 2004, The rotating movement of three immiscible fluids - a benchmark problem. Journal of Hydrology 287, 270-278.

Methods Development -- Geophysics
Dlubac, K., Knight, R., Song, Y-Q., Bachman, N., Grau, B., Cannia, J., and Williams, J., 2013, The use of NMR logging to obtain estimates of hydraulic conductivity in the High Plains aquifer: Water Resources Research, v. 49, p. 1-16, DOI: 10.1002/wrcr.20151.

Methods Development -- Geophysics
Pool, D.H., 2008, The utility of gravity and water-level monitoring at alluvial aquifer wells in southern Arizona Geophysics, vol. 73, no. 6 (November-December 2008) P. WA49-WA59, 10.1190/1.2980395

Model Development -- Grid Refinement
Mehl, S. and Hill, M.C., 2004, Three-Dimensional Local Grid Refinement for Block-Centered Finite-Difference Groundwater Models Using Iteratively Coupled Shared Nodes: A new method of interpolation and analysis of errors. Advances in Water Resources, 27(9): 899-912.

Model Development -- SEAWAT
Mao, X., Prommer, H., Barry, D.A., Langevin, C.D., Panteleit, B., and Li, L., 2006, Three-dimensional model for multi-component reactive transport with variable density groundwater flow Environmental Modelling & Software vol. 21, no. 5:615-628.

Groundwater Availability -- Columbia Plateau
Burns, E.R., Morgan, D.S., Peavler, R.S., and Kahle, S.C., 2011, Three-dimensional model of the geologic framework for the Columbia Plateau Regional Aquifer System, Idaho, Oregon, and Washington: U.S. Geological Survey Scientific Investigations Report 2010-5246, 44 p.

Methods Development -- Tracers
Plummer, L.N. and Friedman, L.C., 1999, Tracing and dating young ground water U.S. Geological Survey Fact Sheet 134-99, 4 p.

Groundwater Availability -- Floridan Aquifer
Kuniansky, E.L., Bellino, J.C., and Dixon, J.F., 2012, Transmissivity of the Upper Floridan aquifer in Florida and parts of Georgia, South Carolina, and Alabama: U.S. Geological Survey Scientific Investigations Map 3204, 1 sheet, scale 1:100,000.

Methods Development -- Water Levels
Tillman, F. D and Leake, S.A., 2010, Trends in groundwater levels in wells in the active management areas of Arizona, USA: Hydrogeology Journal v. 18, no. 6, p. 1515–1524. DOI 10.1007/s10040-010-0603-3.

National Overviews
Grannemann, N.G., 2001, U.S. Geological Survey Ground-Water Resources Program, 2001 U.S. Geological Survey Fact Sheet 056-01, 2 p.

Karst
Kuniansky, E.L., 2008, U.S. Geological Survey Karst Interest Group Proceedings, Bowling Green, Kentucky, May 27-29, 2008: U.S. Geological Survey Scientific Investigations Report 2008-5023, 142 p.

Karst
Kuniansky, E.L., and Spangler, L.E., 2014, U.S. Geological Survey Karst Interest Group Proceedings, Carlsbad, New Mexico, April 29-May 2, 2014: U.S. Geological Survey Scientific Investigations Report 2014-5035, 155 p., http://dx.doi.org/10.3133/sir20145035.

Karst
Kuniansky, E.L., editor, 2011, U.S. Geological Survey Karst Interest Group proceedings, Fayetteville, Arkansas, April 26-29, 2011: U.S. Geological Survey Scientific Investigations Report 2011-5031, 212 p.

Karst
Kuniansky, E.L. editor, 2005, U.S. Geological Survey Karst Interest Group proceedings, Rapid City, South Dakota, September 12-15, 2005: U.S. Geological Survey Scientific Investigations Report 2005-5160, 296 p.

Karst
Kuniansky, E.L. editor, 2002, U.S. Geological Survey Karst Interest Group proceedings, Shepherdstown, West Virginia, August 20-22, 2002: U.S. Geological Survey Water-Resources Investigations Report 02-4174, 89 p.

Model Development -- MODFLOW
Poeter, E.P., Hill, M.C., Banta, E.R., Mehl, Steffen, and Christensen, Steen, 2005, UCODE_2005 and six other computer codes for universal sensitivity analysis, calibration, and uncertainty evaluation constructed using the JUPITER API U.S. Geological Survey Techniques and Methods Book 6, Chapter A11, 283 p.

Groundwater/Surface-Water Interaction
Leake, S.A., and Barlow, P.M., 2013, Understanding and managing the effects of groundwater pumping on streamflow: U.S. Geological Survey Fact Sheet 2013-3001, 4 p.

Middle Rio Grande Basin
Sanford, W.E., Plummer, N., McAda, D.P., Bexfield, L.M., and Anderholm, S.A., 2004, Use of Environmnetal Tracers to Estimate Parameters for a Predevelopment Ground_Water-Flow Model of the Middle Rio Grande Basin, New Mexico, U.S. Geological Survey Water-Resources Investigations Report 03-4286, 102 p.

Model Development -- Geophysics
Johnson, C.D., and Williams, J.H., 2006, Use of cross-hole flowmeter logging to characterize fracture connectivity and fracture flow during a pumping test at the NAWC site, West Trenton, New Jersey [abs.]: Geological Society of America Abstracts with Programs, v. 38, no. 7, p. 528, Paper no. 219-10.

Model Development -- GWM
Ahlfeld, D.P., and Barlow, P.M., 2013, Use of multi-node wells in the Groundwater-Management Process of MODFLOW-2005 (GWM-2005): U.S. Geological Survey Techniques and Methods Book 6, Chapter A47, 26 p.

Model Development -- GWM
Barlow, P.M., 2005, Use of simulation-optimization modeling to assess regional ground-water systems: U.S. Geological Survey Fact Sheet 2005-3095, 4 p.

Recharge--Wisconsin
Gebert, W.A., Radloff, M.J., Considine, E.J., and Kennedy, J.L., 2007, Use of streamflow data to estimate base flow/ground-water recharge for Wisconsin Journal of the American Water Resources Association, v. 43, no. 1, p. 220-236.

Model Development -- Farm Package
Schmid, Wolfgang, Hanson, R.T., Maddock, Thomas, III, Leake, S.A., 2006, User guide for the farm process (FMP1) for the U.S. Geological Survey’s modular three-dimensional finite-difference ground-water flow model, MODFLOW-2000 U.S. Geological Survey Techniques and Methods Book 6, Chapter A17, 127 p.

Water Availability -- Great Lakes Basin
Fienen, M.N., Hunt, R.J., Doherty, J.E., and Reeves, H.W., 2011, Using models for the optimization of hydrologic monitoring: U.S. Geological Survey Fact Sheet 2011–3014, 6 p.

Water Availability -- Great Lakes Basin
Fienen, M.N., Doherty, J.E., Hunt, R.J., and Reeves, H.W., 2010, Using prediction uncertainty analysis to design hydrologic monitoring networks: Example applications from the Great Lakes water availability pilot project: U.S. Geological Survey Scientific Investigations Report 2010–5159, 44 p.

Methods Development -- Heat
Stonestrom, D.A. and Constantz, J., 2004, Using temperature to studystream-ground water exchanges U.S. Geological Survey Fact Sheet 2004-3010, 4 p.

Water Availability -- Great Lakes Basin
Shaffer, K.H., 2009, Variations in withdrawal, return flow, and consumptive use of water in Ohio and Indiana, with selected data from Wisconsin, 1999–2004: U.S. Geological Survey Scientific Investigations Report 2009-5096, 93 p.

Methods Development -- Aquifer Tests
Barlow, P.M., and Moench, A.F., 2011, WTAQ version 2 -- A computer program for analysis of aquifer tests in confined and water-table aquifers with alternative representations of drainage from the unsaturated zone: U.S. Geological Survey Techniques and Methods Book 3, Chapter B9, 41 p.

Water Availability -- Great Lakes Basin
Reeves, H.W., 2010, Water Availability and Use Pilot -- A multiscale assessment in the U.S. Great Lakes Basin: U.S. Geological Survey Professional Paper 1778, 105 p.

Groundwater Availability -- Southwest Alluvial Basin
Tillman, F.D, Cordova, J.T., Leake, S.A., Thomas, B.E., and Callegary, J.B., 2011, Water availability and use pilot: methods development for a regional assessment of groundwater availability, southwest alluvial basins, Arizona: U.S.Geological Survey Scientific Investigations Report 2011-5071, 120 p.

High Plains Water Levels
McGuire, V.L., Johnson, M.R., Schieffer, R.L., Stanton, J.S., Sebree, S.K., and Verstraeten, I.M., 2003, Water in storage and approaches to ground-water management, High Plains aquifer, 2000: U.S. Geological Survey Circular 1243.

High Plains Water Levels
Dugan, J.T., and Sharpe, J.B., 1996, Water-Level Changes in the High Plains Aquifer, 1980 to 1994: U.S. Geological Survey Fact Sheet 215-95, 4 p.

High Plains Water Levels
McGuire, V.L., 2007, Water-Level Changes in the High Plains Aquifer, Predevelopment to 2005 and 2003 to 2005: U.S. Geological Survey Scientific Investigations Report 2006-5324.

High Plains Water Levels
Dugan, J.T., and Sharpe, J.B., 1996, Water-Level Changes in the High Plains aquifer, Predevelopment to 1994: U.S. Geological Survey Water-Resources Investigations Report 95-4208, 1 sheet.

Atlantic Coastal Plain Water Levels
DePaul, V.T., Rice, D.E., Zapecza, O.S., 2008, Water-Level changes in aquifers of the Atlantic Coastal Plain, predevelopment to 2000: U.S. Geological Survey Scientific Investigations Report 2007-5247, 88 p.

High Plains Water Levels
McGuire, V.L., 2013, Water-level and storage changes in the High Plains aquifer, predevelopment to 2011 and 2009–11: U.S. Geological Survey Scientific Investigations Report 2012-5291, 15 p.

High Plains Water Levels
McGuire, V.L., 2014, Water-level changes and change in water in storage in the High Plains aquifer, predevelopment to 2013 and 2011-13 U.S. Geological Survey Scientific Investigations Report 2014-5218, 14 p., http://dx.doi.org/10.3133/sir20145218.

High Plains Water Levels
McGuire, V.L., and Sharpe, J.B., 1997, Water-level changes in High Plains aquifer, 1980 to 1995: U.S. Geological Survey Fact Sheet 068-97, 4 p.

High Plains Water Levels
McGuire, V.L., 2001, Water-level changes in High Plains aquifer, 1980 to 1999: U.S. Geological Survey Fact Sheet FS-029-01.

High Plains Water Levels
McGuire, V.L., 2003, Water-level changes in the High Plains Aquifer, predevelopment to 2001, 1999 to 2000, and 2000 to 2001: U.S. Geological Survey Fact Sheet FS-078-03.

High Plains Water Levels
McGuire, V.L., 2004, Water-level changes in the High Plains Aquifer, predevelopment to 2002, 1980 to 2002, and 2001 to 2002: U.S. Geological Survey Fact Sheet FS-2004-3026.

High Plains Water Levels
Kastner, W.M., Schild, D.E., and Spahr, D.S., 1989, Water-level changes in the High Plains aquifer underlying parts of South Dakota, Wyoming, Nebraska, Colorado, Kansas, New Mexico, Oklahoma, and Texas--Predevelopment through nonirrigation season 1987-1988: U.S. Geological Survey Water-Resources Investigations Report 89-4073, 61 p.

High Plains Water Levels
Dugan, J.T., Schild, D.E., and Kastner, W.M., 1990, Water-level changes in the High Plains aquifer underlying parts of South Dakota, Wyoming, Nebraska, Colorado, Kansas, New Mexico, Oklahoma, and Texas--Predevelopment through nonirrigation season 1988-89: U.S. Geological Survey Water-Resources Investigations Report 90-4153, 29 p.

High Plains Water Levels
McGuire, V.L., 2009, Water-level changes in the High Plains aquifer, predevelopment to 2007, 2005–06, and 2006–07: U.S. Geological Survey Scientific Investigations Report 2009–5019, 9 p.

High Plains Water Levels
McGuire, V.L., 2011, Water-level changes in the High Plains aquifer, predevelopment to 2009, 2007–08, and 2008–09, and change in water in storage, predevelopment to 2009: U.S. Geological Survey Scientific Investigations Report 2011–5089, 13 p.

High Plains Water Levels
Dugan, J.T., and Schild, D.E., 1992, Water-level changes in the High Plains aquifer—Predevelopment to 1990: U.S. Geological Survey Water-Resources Investigations Report 91-4165, 55 p.

High Plains Water Levels
McGrath, T.S., and Dugan, J.T., 1993, Water-level changes in the High Plains aquifer—Predevelopment to 1991: U.S. Geological Survey Water-Resources Investigations Report 93-4088, 53 p.

High Plains Water Levels
Dugan, J.T., McGrath, T.S., and Zelt, R.B., 1994, Water-level changes in the High Plains aquifer—Predevelopment to 1992: U.S. Geological Survey Water-Resources Investigations Report 94-4027, 56 p.

High Plains Water Levels
Dugan, J.T., and Cox, D.A., 1994, Water-level changes in the High Plains aquifer—Predevelopment to 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4157, 60 p.

High Plains Water Levels
McGuire, V.L., and Fischer, B.C., 1999, Water-level changes, 1980 to 1997, and saturated thickness, 1996-97, in the High Plains aquifer: U.S. Geological Survey Fact Sheet 128-99, 4 p.

Methods Development -- Geophysics
Liu, Lanbo, Lane, J.W., Jr., Day-Lewis, F.D., and Zhu, Lieyuan, 2006, Wave interferometry applied to borehole radar data—virtual monostatic and multi-offset reflection profiling 11th International Conference on Ground Penetrating Radar, Columbus, Ohio, June 19-22, 2006, Proceedings, CD-ROM, 5 p.

Recharge--Wisconsin
Magnuson, J.J., Krohelski, J.T., Kunkel, K.E., and Robertson, D.M., 2003, Wisconsin's water and climate: Historical chnages and possible futures. Wisconsin Academy of Sciences, Arts and Letters Transactions 92:23-36.