Amargosa Desert Research Site Research Team

Science Center Objects

The multidisciplinary research team is made up of scientists from research institutes, universities, National laboratories, and the USGS. The USGS co-leaders for the team are Brian J. Andraski (ADRS Coordinator, Nevada Water Science Center) and David A. Stonestrom (National Research Program, California).

Home PageCollaborator Information | Research Team | Site Description

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Jared D. Abraham
Geophysicist
USGS, Geologic Discipline, Crustal Imaging and Characterization Team
PO Box 25046, Denver Federal Center--MS 964, Lakewood, CO 80225-0046
Email: jdabraha@usgs.gov 
Phone: 303-236-1318
Fax: 303-236-1425
Research Interests: Geophysics as applied to geologic structure and ground water.

Todd Anderson
Professor
Department of Environmental Toxicology
The Institute of Environmental and Human Health (TIEHH)
Texas Tech University
P.O. Box 41163, Lubbock, TX 79409-1163
Email: todd.anderson@ttu.edu 
Phone: 806-834-1587
Research interests: Environmental toxicology, environmental fate and chemistry. 

Brian J. Andraski
Research Hydrologist; Amargosa Desert Research Site Coordinator 
USGS, Water Resources Discipline, Nevada Water Science Center
2730 N. Deer Run Rd., Carson City, NV 89701
Email: andraski@usgs.gov 
Phone: 775-887-7636
Fax: 775-887-7629
Research interests: Unsaturated zone hydrology, soil physics: effects of soil-plant-atmosphere interactions on flow and transport in natural and disturbed/engineered systems; methods for characterizing soil physical and hydraulic properties and for monitoring field conditions. 

Art Baehr
Research Hydrologist
USGS, Water Resources Discipline, New Jersey Water Science Center
810 Bear Tavern Rd., Suite 206, Trenton, NJ 08628
Email: abaehr@usgs.gov 
Phone: 609-771-3978
Fax: 609-771-3915
Research interests: Contaminant transport, unsaturated-zone hydrology.

Ronald J. Baker
Hydrologist (former environmental engineer)
USGS, Water Resources Discipline, New Jersey Water Science Center
810 Bear Tavern Rd., Suite 206, West Trenton, NJ 08628
Email: rbaker@usgs.gov 
Phone: 609-771-3923
Fax: 609-771-3915
Research interests: Fate and transport of contaminants in the environment, environmental remediation, and chemical analysis and instrumentation.

J.K. Bohlke
Research Hydrologist
USGS, Water Resources Discipline, National Research Program
National Center--MS 431, 12201 Sunrise Valley Drive, Reston, VA 20192
Email: jkbohlke@usgs.gov 
Phone: 703-648-6325
Fax: 703-648-5274
Research interests: Isotope hydrology, geochemistry.

Bethany Burton
Geophysicist
USGS, Crustal Imaging and Characterization Team
Denver Federal Center
MS964, Box 25046
Lakewood, CO 80225-0046
Phone: 303-236-1327
E-Mail: blburton@usgs.gov 
Research Interest: Geophysics as applied to geologic structure and ground water.

James E. Constantz
Research Hydrologist
Bldg 15, McKelvey Building
345 Middlefield Road
Menlo Park, CA 94025
Phone: 650-329-4655
E-Mail: jconstan@usgs.gov 
Research Interest: Environmental tracers of surface-water/ground-water interactions. 

Clay A. Cooper
Assistant Research Professor
Division of Hydrologic Sciences
Desert Research Institute
2215 Raggio Parkway/MS 016
Reno, NV 89512-1095
Email: clay@dri.edu 
Phone: 775-673-7372
Fax: 775-673-7363
Research interests: Unsaturated zone hydrology, heat and mass transport, unstable and density-driven flow.

William C. Evans
Chemist
USGS, Water Resources Discipline, National Research Program
345 Middlefield Road--MS 434, Menlo Park, CA 94025
E-mail: wcevans@usgs.gov 
Phone: 650-329-4514
Fax: 650-329-4538
Research interest: Hydrogeochemistry

C. Amanda Garcia
Hydrologist
USGS, Water Resources Discipline, Nevada Water Science Center
2730 N. Deer Run Road
Carson City, NV 89701 
Email: cgarcia@usgs.gov 
Phone: 775-887-7684
Fax: 775-887-7629
Reseach interests: Tritium transport. 

Glendon W. Gee
Senior Staff Scientist
Battelle, Pacific Northwest National Laboratory, P.O. Box 999 (K9-33), Richland, WA 99352
E-mail: glendon.gee@pnl.gov 
Phone: 509-372-6096
Fax: 509-372-6089
Research interests: Unsaturated zone hydrology, soil physics.

Patrick A. Glancy
Emeritus Research Hydrologist
USGS, Water Resources Discipline, Nevada Water Science Center
2730 N. Deer Run Rd.
Carson City, NV 89701
Phone: 775-887-7656
E-Mail: paglancy@usgs.gov 
Research Interest: Geomorphology; surface-water/ground-water interactions. 

Gregory J. Harvey
United States Air Force, Environmental Safety and Health Division
1801 10th St Bldg 8 Suite 200, Area B
Wright-Patterson AFB, OH 45433
Phone: 937-255-3276
E-Mail: gregory.harvey@wpafb.af.mil 
Research Interest: Perchlorate and other oxyanions in the environment.

Richard W. Healy
Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center--MS 413, Lakewood, CO 80225-0046
E-mail: rwhealy@usgs.gov 
Phone: 303-236-5392
Fax: 303-236-5034
Research interests: Transport mechanisms controlling the movement of tritiated water and carbon-14 dioxide through the unsaturated zone. Particular interest in evaluation of conceptual, analytical, and numerical models of subsurface contaminant transport in an arid environment.

Andrew Jackson
Associate Professor of Civil and Environmental Engineering
Texas Tech University, MS 41023
Lubbock, TX 79409-1023
E-mail: andrew.jackson@ttu.edu 
Phone: (806) 742-2801 (230)
Fax: (806) 742-3449

Michael J. Johnson
Hydrologic Technician
USGS, Water Resources Discipline, Nevada Water Science Center
2730 N. Deer Run Road
Carson City, NV 89701 
Email: johnsonm@usgs.gov 
Phone: 775-887-7646
Fax: 775-887-7629
Research interests: Evapotranspiration.

David P. Krabbenhoft
Research Hydrologist
USGS, Water Resources Discipline, Wisconsin Water Science Center
8505 Research Way
Middleton, WI 53562
Email: dpkrabbe@usgs.gov 
Phone: 608-821-3843
Fax: 608-821-3817
Research interests: Mercury transport and fate. 

Jeffrey E. Lucius
Geophysicist
USGS, Geologic Discipline, Crustal Imaging and Characterization Team
P.O. Box 25046, Denver Federal Center--MS 964, Lakewood, CO 80225-0046
E-mail: lucius@usgs.gov 
Phone: 303-236-1413
Fax: 303-236-1425
Research Interests: Determining near-surface stratigraphy and hydrologic parameters using ground penetrating radar.

Wentai Luo
Senior Research Associate
Mailing address:
Dept. of Civil and Environmental Engineering
Portland State University
PO Box 751
Portland, OR 97207-0751
Location & shipping address:
Portland State University
Civil and Environmental Engineering
1930 SW Fourth Avenue
Portland, OR 97201 USA
Email: wentai@cecs.pdx.edu 
Phone: 503-725-2591
Fax: 503-725-5950
Research interests: Physical and analytical chemistry of trace organic compounds in natural water, in indoor air, and in the atmosphere; fate of organic compounds in the environment.

C. Justin Mayers
Hydrologist
USGS, Water Resources Discipline, Nevada Water Science Center
2730 N. Deer Run Road
Carson City, NV 89701 
Email: cjmayers@usgs.gov 
Phone: 775-887-7715
Fax: 775-887-7629
Research interests: Tritium transport in deep unsaturated zones.

Robert L. Michel
Research Chemist
USGS, Water Resources Discipline, National Research Program
345 Middlefield Road--MS 434, Menlo Park, CA 94025
E-mail: rlmichel@usgs.gov 
Phone: 650-329-4547
Fax: 650-329-4538
Research interests: Measurement of changes in tritium concentrations in water vapor and in water from transpiration of plants collected within the zone of contamination at the site; measurement of tritium concentrations in hydrogen and the study of possible hydrogen oxidation to water by biological processes as a potential mechanism affecting the fate and transport of tritium through the unsaturated zone.

John R. Nimmo
Physicist
USGS, Water Resources Discipline, National Research Program
345 Middlefield Road--MS 421, Menlo Park, CA 94025
E-mail: jrnimmo@usgs.gov 
Phone: 650-329-4537
Fax: 650-329-4538
Research interests: Unsaturated zone hydrology and soil physics: water and contaminant transport in unsaturated media, hydraulic property measurement, layered unsaturated zones, flow at low water contents.

Dennis O'Leary
Geologist
USGS, Water Resources Discipline
Box 25046, Denver Federal Center--MS 421, Lakewood, CO 80225-0046
E-mail: dwoleary@usgs.gov 
Phone: 303-236-5050 x310
Fax: 303-236-5047
Research Interests: Tectonics, seismic hazards, structural and surficial geology.

James F. Pankow
Professor
Dept. of Civil and Environmental Engineering & Dept. of Chemistry
Portland State University
PO Box 751
Portland, OR 97207-0751
E-mail: pankowj@pdx.edu 
Phone: 503-725-2844
Fax: 503-725-5950
Research Interests: Organic chemicals in the environment.

Michael H. Powers
Research Geophysicist
USGS, Geologic Discipline, Crustal Imaging and Characterization Team
P.O. Box 25046, Denver Federal Center--MS 964, Lakewood, CO 80225-0046
E-mail: mhpowers@usgs.gov 
Phone: 303-236-1349
Fax: 303-236-1425
Research Interests: Innovations in ground penetrating radar and shallow seismic investigations to increase understanding of shallow subsurface environment.

Mike Reddy
Research Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center--MS 418, Lakewood, CO 80225-0046
Email: mmreddy@usgs.gov 
Phone: 303-236-5021
FAX: 303-236-5034
Research interests: Hydrogeochemical processes in the environment. 

Alan C. Riggs
Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center--MS 413, Lakewood, CO 80225-0046
E-mail: ariggs@usgs.gov 
Phone: 303-236-5182
Fax: 303-236-5034
Research interests: Soil CO2 flux, measuring evapotranspiration and net radiation in heterogeneously vegetated desert environments.

Mark Sandstrom
Research Chemist
USGS, National Water Quality Laboratory, Methods and Research Development Section
Denver Federal Center, PO Box 25046, MS 407, Lakewood, CO 80225-0046
Email: sandstro@usgs.gov 
Phone: 303-236-3943
Fax: 303-236-3499
Research interests: Water chemistry, methods research and development.

Bridget R. Scanlon
Research Scientist
Bureau of Economic Geology, The University of Texas at Austin, Univ. Station, Box X, Austin, TX 78713
E-mail: scanlonb@beg.utexas.edu 
Phone: 512-471-8241
Fax: 512-471-0140
Research interests: Unsaturated zone hydrology in arid systems, liquid and vapor flow, tracers, soil physics.

Jirka Šimunek
Professor
Department of Environmental Sciences, University of California 
Riverside, CA 92521
Phone: (951) 827-7854
Fax: (951) 827-3993 
E-mail: jiri.simunek@ucr.edu 
Research Interests: Numerical modeling of vadose-zone processes; vadose zone hydrology; soil physics

David I. Stannard
Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center--MS 413, Lakewood, CO 80225-0046
E-mail: distanna@usgs.gov 
Phone: 303-236-4983
Fax: 303-236-5043
Research Interests: Evapotranspiration measurement and modeling. 

David A. Stonestrom
Hydrologist; Amargosa Desert Research Site co-leader
USGS, Water Resources Discipline, National Research Program
345 Middlefield Road--MS 421, Menlo Park, CA 94025
E-mail: dastones@usgs.gov 
Phone: 650-329-4528
Fax: 650-329-4538
Research interests: Physical processes of infiltration, redistribution, and drainage; soil-gas transport; measurement and interpretation of matric-pressure, water-content, and isotopic profiles in deep unsaturated zones; ground-water recharge.

Robert G. Striegl
Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center--MS 413, Lakewood, CO 80225-0046
E-mail: rstriegl@usgs.gov 
Phone: 303-236-4993
Fax: 303-236-5034
Research interests: Tritium and carbon-14 transport through the unsaturated zone.

Emily M. Taylor
Geologist
USGS, Water Resources Discipline
Box 25046, Denver Federal Center--MS 980, Lakewood, CO 80225-0046 
E-mail: emtaylor@usgs.gov 
Phone: 303-236-0516, ext. 269
Fax: 303-236-5046
Research interests: Quaternary geology, process geomorphology, soil science.

Scott W. Tyler
Director, Graduate Program of Hydrologic Sciences
University of Nevada, Reno, MS 175, Reno, NV 89532 
E-mail: tylers@unr.edu 
Phone: 775-784-6250
Research interests: Vadose zone transport and paleorecharge; land atmosphere interactions in arid regions.

Michelle A. Walvoord
Research Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center, MS 413
Lakewood, CO 80225-0046
E-mail: walvoord@usgs.gov 
Phone: 303-236-4998
Fax: 303-236-5034
Research interests: Vadose zone hydrology in arid and semiarid environments; nonisothermal multiphase flow and transport modeling; geochemical and isotopic tracers; paleohydrology; nitrogen cycling in desert ecosystems. 

Edwin P. Weeks
Hydrologist
USGS, Water Resources Discipline, National Research Program
P.O. Box 25046, Denver Federal Center--MS 413, Lakewood, CO 80225-0046
E-mail: epweeks@usgs.gov 
Phone: 303-236-4981
Fax: 303-236-5034
Research interests: Unsaturated zone hydrology, soil gas transport processes, and evapotranspiration.

Stephen W. Wheatcraft
Professor of Hydrogeology
Department of Geological Sciences/172
University of Nevada, Reno
Reno, NV 89557
E-mail: wheatcraft@unr.edu 
Phone: 775-784-1973
Fax: 775-784-1953
Research interests: Solute transport in heterogeneous porous media; density-coupled flow & transport (e.g., sea water intrusion); fracture flow & transport in the saturated and unsaturated zones. 

Arthur F. White
Geochemist/Project Chief
USGS, Water Resources Discipline, National Research Program
345 Middlefield Road--MS 420, Menlo Park, CA 94025
E-mail: afwhite@usgs.gov 
Phone: 650-329-4519
Fax: 650-329-4538
Research interest: Geochemistry of soils and unsaturated zone processes.