- Mercury Found to Migrate Horizontally from Landfill
- New Model Allows for More Accurate Simulation of Tritium Movement in the Unsaturated Zone
- Widespread Accumulations of Natural Perchlorate in Southwestern Soils
- Desert Plants Reveal Contaminant Transport Pathways
- New Model Improves Understanding of the Transport of Carbon Isotopes in the Unsaturated-Zone
- Using Plants To Detect Tritium Contamination
- High Nitrate in the Desert? What's Going On?
- Are Deserts Still Drying Out Since the Ice Age?
- New Book on Soil Analysis Methods Destined to Become a Classic
Recently Released Reports — See Publications for complete list
Perkins K., and Nimmo, J., 2009, High-quality unsaturated zone hydraulic property data for hydrologic applications, Water Resources Research, vol. 45, doi:10.1029/2008WR007497.
Stonestrom, D.A., Scanlon, B.R., and Zhang, L., 2009, Introduction to special section on Impacts of Land Use Change on Water Resources: Water Resources Research, v. 45, doi:10.1029/2009WR007937.
Nimmo, J.R., Andraski, B.J., and Munoz-Carpena, Rafael, 2009, UZIG USGS Research: Advances through interdisciplinary interaction: Vadose Zone Journal, vol. 8, no. 2, p. 411-413, doi: 10.2136/vzj2008.0185 (article)
Garcia, C.A., Andraski, B.J., Stonestrom, D.A., Cooper, C.A., Johnson, M.J., Michel, R.L., and Wheatcraft, S.W., 2009, Transport of tritium contamination from the shallow unsaturated zone to the atmosphere in an arid environment: Vadose Zone Journal, vol. 8, no. 2, p. 450-461, doi: 10.2136/vzj2008.0022 (article)
Scanlon, B.R., Stonestrom, D.A., Reedy, R.C., Leaney, F.W., Gates, J., and Cresswell, R.G., 2009, Inventories and mobilization of unsaturated zone sulfate, fluoride, and chloride related to land use change in semiarid regions, southwestern United States and Australia: Water Resources Research, vol. 45, doi:10.1029/2008WR006963 (article)
McGuire, P.E., Andraski, B.J., and Archibald, Ryan, 2009, Case study of a full-scale evapotranspiration cover: Journal of Geotechnical and Geoenvironmental Engineering, vol. 135, no. 3, p. 316-332, doi: 10.1061/(ACSE)1090-0241(2009)135:3 (article)
Stonestrom, D.A., 2009, Assessing recharge across the southwest: Southwest Hydrology, vol. 8, no. 1, p. 10-11 (article)
Yin, Jun, Young, M.H., and Yu, Zhongbo, 2008, Effects of paleoclimate and time-varying canopy structures on paleowater fluxes: Journal of Geophysical Research, vol. 113, D06103, doi:10.1029/2007JD009010. (article)
Garcia, C.A., Johnson, M.J., Andraski, B.J., Halford, K.J., and Mayers, C.J., 2008, Portable chamber measurements of evapotranspiration at the Amargosa Desert Research Site near Beatty, Nye County, Nevada, 2003–06: U.S. Geological Survey Scientific Investigations Report 2008–5135, 10 p. Available on the World Wide Web only (http://pubs.usgs.gov/sir/2008/5135/)
Lucius, J.E., Abraham, J.D., and Burton, B.L., 2008, Resistivity profiling for mapping gravel layers that may control contaminant migration at the Amargosa Desert Research Site, Nevada: U.S. Geological Survey Scientific Investigations Report 2008–5091, 30 p. Available on the World Wide Web only
Niswonger, R.G., Prudic, D.E., Fogg, G.E., Stonestrom, D.A., and Buckland, E.M., 2008, Method for estimating spatially variable seepage loss and hydraulic conductivity in intermittent and ephemeral streams: Water Resources Research, v. 44, doi:10.1029/2007WR006626. (article)
Walvoord, M.A., Andraski, B.J., Krabbenhoft, D.P., and Striegl, R.G., 2008, Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region: Applied Geochemistry, v. 23, no. 3, p. 572–583, doi:10.1016/j.apgeochem.2007.12.014 (article)
Rogers, A.K., 2008, Field data validation of an algorithm for computing obsidian effective hydration temperature: Journal of Archaeological Science, v. 35, p. 441-447, doi:10.1016/j.jas.2007.04.009 (article)
Stonestrom, D.A., Prudic, D.E., Walvoord, M.A., Abraham, J.D., Stewart-Deaker, A.E., Glancy, P.A., Constantz, J. Laczniak, R.J., and Andraski., B.J., 2007, Focused ground-water recharge in the Amargosa Desert Basin, in Stonestrom, D.A., Constantz, J., Ferre, T.P.A., and Leake, S.A., eds., Ground-water recharge in the arid and semiarid southwestern United States: U.S. Geological Survey Professional Paper 1703-E, p. 107-136. http://pubs.usgs.gov/pp/pp1703/e/
Price, V., Temples, T., Hodges, R., Dai, Z., Watkins, D., and Imrich, J., 2007, Integrated ground-water monitoring strategy for NRC-licensed facilities and sites: Case study applications: NUREG/CR-6948, Vol. 2, U.S. Nuclear Regulatory Commission, Washington, DC.
(Chapter 4 illustrates application of the monitoring strategy to the Beatty, NV waste site using ADRS data.)
Rao, B., Anderson, T.A., Orris, G.J., Rainwater, K.A., Rajagopalan, S., Sandvig, R.M., Scanlon, B.R., Stonestrom, D.A., Walvoord, M.A., and Jackson, W.A., 2007, Widespread natural perchlorate in unsaturated zones of the southwest United States: Environmental Science and Technology, doi:10.1021/es062853i
Garcia, C.A., 2007, Vertical tritium transport from the shallow unsaturated zone to the atmosphere, Amargosa Desert Research Site, Nevada: Reno, University of Nevada, M.S. Thesis, 122 p.
Johnson, M.J., Mayers, C.J., Garcia, C.A., and Andraski, B.J., 2007, Selected micrometeorological, soil-moisture, and evapotranspiration data at Amargosa Desert Research Site in Nye County near Beatty, Nevada, 2001-05: U.S. Geological Survey Data Series 284, 28 p. Available on the World Wide Web only
PENINSULA GEOLOGICAL SOCIETY
April 7, 2009, Stanford, CA
Dave Stonestrom presented “A hydrogeological perspective on nuclear waste---Tales from the trenches (Hanford’s and Beatty’s)” (USGS-NRP)
NORTHERN CALIFORNIA GEOLOGICAL SOCIETY
June 24, 2009, Orinda, CA
Dave Stonestrom presented “Cleanup on Aisle 9---The Long-Lasting Legacy of Nuclear Waste” (USGS-NRP)
TOXICS NATIONAL SUBSURFACE POINT-SOURCE MEETING, HELD IN CONJUNCTION WITH U.S. ENVIRONMENTAL PROTECTION AGENCY'S TECHNICAL SUPPORT PROJECT
January 27-30, 2009, San Diego, CA
ADRS ORAL SESSION (presenter):
- Overview of the Amargosa Desert Research Site--Field laboratory for the study of arid site processes (Brian Andraski, USGS-NV)
- Factors and processes affecting water and gas flow in desert unsaturated zones (Dave Stonestrom, USGS-NRP)
- Monitoring and modeling to improve understanding of tritium transport in an arid environment (Brian Andraski, USGS-NV)
- Volatile organic compounds in the unsaturated zone at the Amargosa Desert Research Site (Ron Baker, USGS-NJ)
- Mercury transport in the unsaturated zone at the ADRS (Michelle
- Tritium releases to the atmosphere adjacent to an arid waste-disposal site (Amanda Garcia, USGS-NV)
- Amargosa Desert Research Site (ADRS)--Use of results (Brian Andraski, USGS-NV)
ADRS POSTER SESSION (presenter):
- Dispersion of contaminants by barometric pumping (Dave Stonestrom, USGS-NRP)
- Diurnal distillation for management of water resources impaired by non-volatile toxic substances (Jim Constantz, USGS-NRP)
- Modeling water movement in desert soils--Implications for waste
isolation (Amanda Garcia, USGS-NV)
- Natural perchlorate in precipitation, soils, and plants at the Amargosa Desert Research Site (Andrew Jackson, Texas Tech Univ.)
- Geologic framework characterization--A key task in identifying controls on contaminant transport (Emily Taylor, USGS-GD)
- Resistivity imaging of hydrogeologic features that may control contaminant migration (Jeff Lucius, USGS-GD)
JOINT ANNUAL MEETING
October 5-9, 2008, Houston, TX
- Amanda Garcia presented “Transport of tritium contamination from the shallow unsaturated zone to the atmosphere in an arid environment” by C. Garcia, B. Andraski, D. Stonestrom, C. Cooper, M. Johnson, R. Michel, & S. Wheatcraft (USGS-NV, -NRP, Desert Res. Inst., Univ. NV-Reno)
- Jarai Mon presented “Tracer Characteristics of Brilliant Blue FCF and FD&C Green No. 3 in Arid Soils” by J. Mon, Z. Yu, & M. Young. (Univ. NV- Las Vegas, Desert Res. Inst.)
- Joint Session: “A Celebration of Soil Science, Solute Transport, and National-Scale Water-Quality Research: In Honor of Jacob Rubin” convened by D. Stonestrom, J. Bahr, & J. Barbash (USGS, Univ. of WI)
USGS NATIONAL GROUND-WATER WORKSHOP
August 3-8, 2008, Lakewood, CO
- Amanda Garcia presented “Partitioning ET into E and T using chambers” by C. Garcia, D. Stannard, B. Andraski, M. Johnson in the training class “Evapotranspiration measurement & modeling: Shrubs to basins” convened by D. Stannard, D. Sumner, M. Moreo, A. Garcia, & K. Allander (USGS-NRP, -FL, -NV).
- Brian Andraski presented “Systematics of natural perchlorate in precipitation, soils, and plants at the Amargosa Desert Research Site, Nye County, Nevada” by B. Andraski, D. Stonestrom, A. Jackson, S. Rajagopalan, and E. Taylor (USGS-NV, -NRP, -GD, Texas Tech Univ.)
- Amanda Garcia presented “Estimating tritium fluxes from the shallow unsaturated zone to the atmosphere” by C. Garcia, B. Andraski, S. Wheatcraft, C. Cooper, D. Stonestrom, M. Johnson, R. Michel, (USGS-NV, -NRP, Univ. NV-Reno, Desert Res. Inst.)
June 26, 2008, Menlo Park, CA
Dave Stonestrom presented “Cleanup on aisle 9 -- The long-lasting legacy of nuclear waste” in the USGS monthly Evening Public Lecture Series (USGS- NRP)
SOCIETY OF TOXICOLOGY ANNUAL MEETING, ANCILLARY PERCHLORATE SYMPOSIUM
March 20-21, Seattle, WA
Dave Stonestrom presented an invited talk titled “Natural perchlorate in the hydrologic cycle -- A review of recent findings” (USGS-NRP)
ADRS POSTER WINS FIRST PLACE AT NEVADA WATER RESOURCES ASSOCIATION CONFERENCE
Amanda Garcia took first place in the student poster competition with her presentation titled “Estimating Tritium Fluxes from the Shallow Unsaturated Zone to the Atmosphere in an Arid Environment Dominated by Creosote Bush (USGS-ADRS).”
February 20-22, 2007, Sparks, NV
AMERICAN GEOPHYSICAL UNION FALL MEETING
December 11–15, 2006, San Francisco, CA
- Amanda Garcia presented a talk “Estimating Tritium Fluxes from the Shallow Unsaturated Zone to the Atmosphere in an Arid Environment Dominated by Creosote Bush USGS-ADRS),” by C. Garcia, B. Andraski, S. Wheatcraft, M. Johnson, R. Michel, and D. Stonestrom (Univ. NV-Reno; USGS-NV, -NRP)
- Dave Stonestrom presented a talk “A Reservoir of natural perchlorate in unsaturated zones of arid and semi-arid regions, southwestern USA,” by Rao, B.A., Stonestrom, D.A., Anderson, T.A., Orris, G.J., Rajagopalan, S., Sandvig, R.M., Scanlon, B.R., Walvoord, M.A., and Jackson, W.A.
GEOLOGICAL SOCIETY OF AMERICA MEETING
October 22-25, 2006, Philadelphia, PA
- Michelle Walvoord and Dave Stonestrom (USGS-NRP) convened a Special Session: “Gradients at Hydrologic Interfaces as Indicators of Key Earth-Surface (‘Critical-Zone’) Processes.”
- Michelle Walvoord (USGS-NRP) made an invited presentation titled “Discontinuities in recharge through arid and semiarid basin floors: evidence from the unsaturated zone and linkages to environmental change.”
- “Use of Resistivity Sounding Data in a Hydrogeologic Conceptual Site Model” by V. Price, D. Watkins (Advanced Environmental Solutions, LLC), and T. Nicholson (U.S. Nuclear Reg. Comm.). The presentation described an approach to ground-water monitoring, parts of which were tested with field data from the ADRS.
ADRS RESEARCH PRESENTED TO ADVISORY COMMITTEE ON NUCLEAR WASTE
Brian Andraski discussed ADRS findings in a presentation titled “Monitoring and Modeling to Improve Understanding of Contaminant-Transport Processes in an Arid Environment,” by B. Andraski, D. Stonestrom, C. Mayers, M. Walvoord, R. Michel, R. Baker, R. Striegl, and D. Krabbenhoft (USGS-NV, NRP, NJ, WI) at a meeting held at U.S. Nuclear Regulatory Commission Headquarters, September 19-20, 2006, Rockville, MD. http://www.nrc.gov/reading-rm/doc-collections/acnw/agenda/2006/
USGS NATIONAL RESEARCH PROGRAM / WATER SCIENCE CENTER LECTURE SERIES
Michelle Walvoord, (USGS-NRP) presented a talk titled, “Unsaturated-zone forensics provides insight to soil and water resources” at six USGS Water Science Centers in the eastern, central, and western regions, May-Sept 2006.
MERCURY 2006--INTERNATIONAL CONFERENCE ON MERCURY AS A GLOBAL POLLUTANT
Rob Striegl presented a poster titled “Elemental mercury transport in the deep unsaturated zone from an arid waste disposal site,” by M. Walvoord, D. Krabbenhoft, R. Striegl, B. Andraski (USGS-NRP, WI, NV). August 6-11, 2006, Madison, WI. http://www.mercury2006.org/
18th WORLD CONGRESS OF SOIL SCIENCE (WCSS)
- Brian Andraski presented “Plant-based plume-scale mapping reveals tritium-transport extent and processes in desert soils,” by B. Andraski, D. Stonestrom, C. Garcia, R. Michel, M. Johnson, and D. Decker (USGS-NV, NRP; Univ. NV-Reno; Desert Research Inst.) in the symposium “Measurement, Occurrence, and Transport of Radionuclides in Soils and Sediments, and Their Transfer to Biota.”
- Glendon Gee presented a poster titled “Fluxmeters for monitoring recharge in desert settings,” by G. Gee, J. Keller, F. Zhang, A. Ward and B. Andraski (Pacific NW Natl. Lab; USGS-NV) in the symposium “Emerging Topics in Soil Use and Management.” Results included those from the ADRS test-trench site. July 9-15, 2006, Philadelphia, PA. http://www.colostate.edu/programs/IUSS/18wcss/
SPECIAL SESSION AT 2005 GEOLOGICAL SOCIETY OF AMERICA ANNUAL MEETING
Dave Stonestrom (USGS-NRP), Andrew Jackson (Texas Tech Univ.), and Scott Tyler (Univ. of Nevada, Reno) convened a Special Session “Naturally Occurring Perchlorate (and other Oxyanions) in the Hydrologic Cycle--Origins, Accumulation, Transformations, and Transport,” October 16-19, 2005, Salt Lake City, UT.
- “Source and Occurrence of Non-Anthropogenic Perchlorate” by A. Jackson (Texas Tech Univ.) and D. Stonestrom (USGS-NRP).
- “Plants as Bioaccumulators of Perchlorate” by G. Harvey (USAF), G. Orris (USGS-GD), A. Jackson (Texas Tech Univ.), and B. Andraski (USGS-NV).
- “Perchlorate Accumulation Beneath Native Vegetation in Arid and Semi-Arid Environments” by D. Stonestrom, M. Walvoord (USGS-NRP), V. Heilweil (USGS-UT), A. Jackson, and S. Rajagopalan (Texas Tech Univ.)