Professional Background

Dr. David K. Kreamer has been a faculty member in the UNLV Department of Geoscience since 1990, as well as serving as the Director of the UNLV Water Resources Management Program from 1990-2002. His undergraduate work was in Microbiology and Chemistry, with M.S. and Ph.D. work in Hydrology, and a minor in Geosciences from the University of Arizona. His past affiliations include Assistant Professor of Civil Engineering at Arizona State University.

Education

• Ph.D. Hydrology, minor in Geosciences, December 1982, University of    Arizona.
• M.S. Hydrology, May 1976, University of Arizona.
• B.S. Microbiology, minor in Chemistry, 1973, University of Arizona.

Work Experience

1998 - Present: Professor of Geoscience, University of Nevada, Las Vegas
1990 - 2002:     Director of the Water Resources Management Graduate                           Program, University of Nevada, Las Vegas
1990-1998:       Associate Professor of Geoscience, University of Nevada, Las                           Vegas
1985-1990:       Assistant Professor of Civil Engineering, Arizona State                           University
1984-1985:       Visiting Assistant Professor, Arizona State University
1976-1984:       Instructor and Associate in Research, Department of                           Hydrology and Water Resources, University of Arizona
1977:                 Research Assistant III, Staff Member, Water Resources                           Research Center, University of Arizona

Membership In Scientific And Professional Societies

• American Association for the Advancement of Science
• American Geophysical Union
• American Society of Civil Engineering
• American Water Resources Association
• ASTM - Section D-18.21.02 Vadose Zone Monitoring
• Aquavision
• Association of Engineering Geologists
• Association of Groundwater Scientists and Engineers, NGWA
• Geological Society of America
• Geological Society of Nevada
• Nevada Advisory Council on Water Resources
• U.S. Environmental Protection Agency, Science Advisory Board
• Universities Council on Water Resources
• Consortium of Universities for the Advancement of Hydrologic Science

Selected Professional Service

•Reviewer for U.S. Department of Energy and U.S. Environmental Protection   Agency (Kerr Laboratory, Ada, OK and Environmental Systems Monitoring   Laboratory, Las Vegas) technical documents.
•Referee for several Journals including Environmental Science and Technology,   Water Resources Research, the Journal of Environmental Quality, Ground   Water, Ground Water Monitoring and Remediation, and Applied Geochemistry.
•Referee for National Science Foundation
•Nevada Advisory Council on Water Resources, 1991 - present.
•Nevada Representative, Universities Council on Water Resources,   1990- present.
•UNLV Representative, U.S. Geological Survey Liaison Committee for the   Nevada Basin and Range National Water-Quality Assessment (NAWQA)   study.
•Independent Peer Reviewer, Yucca Mountain Hydrology, Early Site Suitability   Evaluation.
•Peer Reviewer for the Incremental Risk Assessment Methodology at Rocky   Flats Plant, Colorado as part of the Rocky Mountain Consortium.
•Member of U.S. Environmental Protection Agency, Science Advisory Board,   Subcommittee on Carbon-14 at High-Level Nuclear Repository Sites.
•UNLV Representative, U.S. Geological Survey Liaison Committee for Nevada   Basin and Range, National Water Quality Assessment Study
•External Reviewer - Argonne National Laboratory, Environmental Sciences   Division, University of Chicago.
•External Reviewer for Northern Arizona University Tenure and Promotion
•Referee for Water Resources Institute, Technion, Israel Institute of   Technology research proposals
•External Reviewer for University research funded by the Republic of South   Africa, Water Resource Commission.
•External Reviewer South African Hazardous Waste Sites.
•External Reviewer for several research proposals over several years for   cooperative environmental research in the Former Soviet Union (FSU)
•Referee for International Science and Technology Center, Moscow - Analysis   of Burials of Radioactive Waste in the Territory of the Russian Research   Center "Kurchatov Institute" in Moscow and Paths of Supposed Radionuclide   Migration in the Environment.
•Reviewer for Master's Thesis Kuwait University, external referee for Ph.D   student at University of Pretoria, South Africa.
•Member and Consultant for the U.S. EPA National Science Advisory Board.

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Teaching

Graduate:
• GEY 700/WRM 700 - Hydroscience
• WRM 706 - Water Resources Management Seminar
• GEY 715/ WRM 715 - Advanced Hydrogeology
• GEY 719/ WRM 719 - Soil Water Management
• GEY 790/ WRM 790 - Hazard Waste Site Assessment
• GEY 790/ WRM 790 - Hydrology Field Camp
• GEY 790/ WRM 790 - Hazard Site Assessment/Remediation

Other course topics include:
• Hydraulics
• Surface Water Hydrology
• Vadose Zone Hydrology
• Water Resources Engineering

Short Courses, Invited Lectures, Extension Activities

Dr. Kreamer has given over 150 invited lectures, seminars, and workshops in recent years on topics including:  Vadose Zone Hydrology and Subsurface Gaseous Movement; Dense Nonaqueous Phase Liquids and other NAPLs;  Propellents, Explosives, Pyrotechnics, and other Energetic Compounds; Monitoring Well Design; RCRA Subtitle D and Landfills; Computer Modeling of Hydrologic Processes; and Groundwater Hydrology.  He has presented:

• National lectures for the U.S. Environmental Protection Agency, U.S. Bureau    of Land Management, the National Ground Water Association, Association    of Groundwater Scientists and Engineers, and Superfund University Training    Institute. 
• Short courses for the Departments of Environmental Quality, Environmental    Conservation, and/or Transportation for over half the States or    Commonwealths in the United States;
• Courses and presentations for groups such as City of Phoenix, University of    California Extension, and Hanford Nuclear Site.
• Presentations at over 40 Universities.
• Overseas presentations including Haifa, Israel, San Juan, Puerto Rico, and    Guam for the U.S. Environmental Protection Agency; Sao Paulo, Brazil for    the U.S. Government Executive Branch (American Participant Program);    People's Republic of China; lecture series in the United Kingdom, Zimbabwe,    Kenya, and Republic of South Africa.

Selected Short Courses & Invited Presentations

•Student World Water Forum, University Nevada, Reno, Nov. 15 – 16, 2007
•University of the Free State (South Africa), May 31, 2007
•University of Zimbabwe (Zimbabwe), May 28, 2007
•Bindura University for Science Education (Zimbabwe – 3 lectures), May
  25-27, 2007
•University of Nairobi (Kenya), May 21, 2007
•University of the Western Cape (South Africa – 3 day short course), May
  17-19, 2007
•U.S. Bureau of Land Management, Oil and Gas Operator’s Workshop,   Western Wyoming Community College, April 18, 2007
•Basic Hydrology, U.S. Bureau of Land Management Training, Keynote   presentation,1 and 1/2 days of two week course, May 8-9, 2006, Las Vegas,   NV.
•Understanding Migration, Assessment, and Remediation of Non-Aqueous   Phase Liquids, National Ground Water Association.  Taught 2 days of a 3 day   course, September 27-30, 2005, Coral Gables, FL, NV,  D.K. Kreamer and   Paul Yaniga .
•14 invited lectures in 5 weeks in the Republic of South Africa at conferences,   universities and government agencies, July 17 – August 23, 2005.
•Introduction to Hydrology, U.S. Bureau of Land Management Training,   Keynote presentation, 1 and 1/2 days of two week course, May 3-4, 2004,   Las Vegas, NV.
•Contaminant Hydrology and Mine Reclamation, U.S. Bureau of Land   Management short course, 1 day of a two week course, Butte, Montana,   August 7, 2003.
•Kreamer, D. K. and H. Schuver.  4 day short course on Advanced   Contaminant Hydrology, 1 day workshop, and several short lectures   throughout South Africa, invited by the SA Department of Water Affairs and   Forestry, May 19-30, 2003.   Course notes published.
•Hydrologic Mathematical Modeling, U.S. Bureau of Land Management   Training, 1/2 day, May 5, 2003, Las Vegas, NV, D.K. Kreamer.
•Groundwater Contamination and Surface Groundwater Interactions,  3-day   short course, May 21-23, 2002, Alaska Department of Environmental   Conservation, Anchorage Alaska.   
•Contaminant Hydrology and Mine Reclamation, U.S. Bureau of Land   Management short course, 1.5 day of a two week course, Las Vegas, May
  6-7, 2002.
•Kreamer, D. K. and R Breeden.  2 day seminar, 1 day workshop, several   short lectures throughout South Africa, invited by the SA Department of   Water Affairs and Forestry, March 1-15, 2002.   Course notes published.
•Free Product Training - Migration, Assessment, and Remediation of
  Non-Aqueous Phase Liquids, Michigan Department of Environmental Quality,   Storage Tank Division.  Taught 2 1/2 days of a 3 day course, September
  12-14, 2000. D.K. Kreamer and James Davidson.  Course notes published.    Invited Speaker.
•Non-Aqueous Phase Liquids - Hydrogeology and Groundwater   Contamination.  National Groundwater Association, Las Vegas, NV, 2000,   two days, April 27-28. D.K. Kreamer.
•Groundwater Contamination, U.S. Bureau of Land Management Training, 1.5   days, April 24-25, 2000, Las Vegas, NV, D.K. Kreamer.
•New Perspectives on Monitoring and Remediation of Light Non Aqueous   Phase Liquids, Montana Department of Environmental Quality Annual   Conference, 4 1/2 hours, March 30-31, 2000, Anaconda, MT. D.K. Kreamer .    Notes and abstract printed and distributed. 

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Research

Dr. Kreamer has carried out research on many water related topics, particularly the fate and transport of environmental contaminants, non-aqueous phase liquids, vadose zone hydrology, radioactive waste disposal, groundwater hydrology, landfills, monitoring well design, and water resources management. He has been an invited lecturer at many conferences including a presentations in Brazil for American Participant Program administered through the executive branch of the U.S. government, in Israel for the U.S. Environmental Protection Agency (jointly with the Israeli Ministry of the Environment), and throughout the United Kingdom at many universities and government agencies. He has given national lectures and training for the U.S. Environmental Protection Agency, the U.S. Bureau of Land Management, the Superfund University Training Institute, and the National Ground Water Association. Additionally, David has presented workshops at the Hanford Nuclear Site and for the States of Alaska, Arizona, Idaho, Minnesota, and Virginia. Dr. Kreamer has been an external peer reviewer for risk assessment and remediation methodologies at the Rocky Flats Plant as part of the Rocky Mountain Consortium, has been an external peer reviewer for the Early Site Suitability documentation for the hydrology of Yucca Mountain, and has been a member of the U.S. EPA's Science Advisory Board subcommittee on carbon-14 migration as carbon dioxide gas from high level nuclear waste repositories. He has worked at many CERCLA and RCRA sites, including Johnston Atoll in the Pacific Ocean, was a 1997 recipient of the Joseph Malone Fellowship, and has authored over 50 professional publications.

Dr. Kreamer has visited and hiked the Grand Canyon since the sixties, began initial sampling in the early 1970's, and has been an oarsman and paddler on the Colorado River, through the Grand Canyon, since the early 1980's. His research in the Canyon has intensified in the last ten years, with the increasing proposals for exploitation of groundwater on the Coconino Plateau near the Grand Canyon National Park. Support and cooperation for Dr. Kreamer's research has been received from many groups, including the National Park Service, the non-profit Grand Canyon Association, and the U.S. Environmental Protection Agency.

Selected Research Grants Received At UNLV

•Virgin Valley Water District: Investigation of Groundwater Abundance and   Migration through Analysis of Chemical Hydrologic Tracers and Mathematical   Simulation of Groundwater Movement in the lower Virgin River Watershed,   Arizona, Nevada, and Utah.
•U.S. Army Corps of Engineers:  Investigation of BIS(2-Chloroethyl)Ether   Leachability from Solid Waste Material at Lapari Landfill Superfund Site,   Gloucester County, New Jersey.
•Mojave Water Agency: Stable Isotope Studies of Groundwater Associated   with Potential Recharge Sites in the Morongo Basin/Johnson Valley Subarea,   Southern California.
• U.S. Department of Energy: Fluid Migration and Subsidence of NTS Landfill    Caps.
• U.S. Environmental Protection Agency: Controlled Laboratory Experiments -    To Investigate the Subsurface Movement of Petroleum Fuels.
• Reynolds Electric and Engineering Company: Determination of Sorption and    Diffusion Coefficients for Seven Volatile Organic Compounds.
• Las Vegas Valley Water District: Evaluation of Sources of Salinity on the    Lower Virgin River.
• National Park Service, and the Grand Canyon Historical Society: Grand    Canyon Groundwater Tracing.
• Rocky Mountain University Consortium: Review of Incremental Risk    Assessment Methodology for Rocky Flats, and Remediation Selection at    OU- 1.
• Raytheon Services Nevada: Subsurface Fuels Contamination at Johnston    Island.
• University Grants and Fellowships Committee: Dating Grand Canyon    Groundwater.
• U.S. Department of Energy: Fingerprinting of Groundwater.

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Selected Research Publications

Luke, B., Kreamer, D.K., and Y.Tan, 2008. Mechanical model of monofill-type landfill cover subjected to subsidence, International Journal of Geotechnical Engineering, vol. 1, issue 2, January 2008.  

Kreamer, D.K. and A.E. Springer, 2008.  The Hydrology of Desert Springs in North America, in Aridland Springs in North America, Ecology and Conservation, eds. L.E. Stevens and V. J. Meretsky, University of Arizona Press, Tucson.   

Springer, A.E., Stevens, L.E., Anderson, D.E., Parnell, R.A., Kreamer. D. K., Levin, L. and S. P. Flora, 2008.  A Comprehensive Springs Classification System:  Integrating Geomorphic, Hydrochemical, and Ecological Criteria, in Aridland Springs in North America, Ecology and Conservation, eds. L.E. Stevens and V. J. Meretsky, University of Arizona Press, Tucson. 

Kreamer, D.K., Luke, B., Tan, Y. and J. Griest.  Visualization Techniques for Environmental Education - Laboratory Modeling of Landfill Cover Subsidence.  Submitted to Journal of Natural Resources and Life Sciences Education, September 2007.

Kreamer, D.K. and B. Usher.  A Way Forward for Groundwater Remediation in Sub Saharan Africa – Building on International Experience, Submitted by B. Usher for a special Africa Issue of Ground Water, Journal of the National Ground Water Association, September 2007.

Garrett,  L.D. Stevens, L.E., Haas, W.E., Kreamer, D.K., Valdez, R., and E.E. Wohl, 2003. A Review of the Second Administrative Draft “Conservation Plan For the Lower Colorado River Multi-Species Conservation Program”:  FINAL REPORT , MSCP Scientific Review, January 18, 2003.  192 pages. 

Kreamer, D.K., Jacobson, E. and Jon Wilson, 2002.  Hydrogeology of Southern Nevada and the Ash Meadows National Wildlife Refuge, in Geology of the Southern Nevada Region, editors Rowland S.M. and R.L. Orndorff.

Kreamer, D.K. , 2001.  Down the Rabbit Hole with Alice - Sucking Soil Gas All the Way.  Ground Water Monitoring and Remediation, Vol. 21, No. 4,  p. 52-56.

Kreamer, D.K., 2001.   Historical Geochemical Studies Done in the Grand Canyon, Proceedings of the First Coconino Plateau Hydrology Workshop, Northern Arizona University, Flagstaff, October 26-27, 2000.  P. 15-19, Editors:  Springer, A., and N. Ramsey.
 
Kreamer, D.K., Luke, B. A. Cardle, J.A. and J.N. Griest, 2001.   Physical and Mathematical Modeling of fluid Migration in Monofill Covers Affected by Subsidence; In Soil and Water Issues in the Arid Southwest, Proceedings of the 36th Annual Engineering Geology and Geotechnical Engineering Symposium, March 28-30, 2001, p.15 -19, Editors:  Luke, B, Jacobson, E. and J. Werle.

Ingraham, N.,  K. Zukosky, and D.K. Kreamer, 2001. The Application of Stable Isotopes to Identify Problems in Large-Scale Water Transfer in Grand Canyon National Park.  Environmental Science and Technology, Vol. 35, 1299-1302.

Doremus, L and D.K. Kreamer, 2000. Water Quantity and Quality at Bryce Canyon National Park, Hydrology and Water Resources in Arizona and the Southwest, Vol. 30, pp.81-95.

Johannessonn, K.H., Stetzenbach K. J. Hodge, V.F., Kreamer, D. K. and X. Zhou, 1997. Delineation of Ground- Water Flow Systems in the Southern Great Basin Using Aqueous Rare Earth Element Distributions. Ground Water Vol. 35, No. 5, p. 807-819.

Kreamer, D. K., Stetzenbach, K.J., Hodge, V.F., Johanneson, K. and I. Rabinowitz, 1996. Trace Element Geochemistry in Water from Selected Springs in Death Valley National Park, California. Ground Water. 34-1, p.95- 103 (Jan-Feb. 1996).

Steinberg, S.M., Schmeltzer, J.S., and D.K. Kreamer, 1996.  Sorption of Benzene and Trichhloroethylene (TCE) on a Desert Soil:  Effects of Moisture and Organic Matter.  Chemosphere, Vol. 33, No. 5, 961-980.

James, D.E., Johnson, T.E. and Kreamer, D. K., 1996. Interference of Avian Guano in Analysis of Fuel- Contaminated Sites. ASCE J. of Envirn. Engineering, (122-1) p. 74-78.

Johannesson, K.H., Stetzenbach, K.J., Kreamer, D. K., and V.F. Hodge, 1996. Multivariate Statistical Analysis of Arsenic and Selenium Concentrations in Groundwaters from South-Central Nevada and Death Valley, California. J. of Hydrology. v. 178, p. 181-204.

Steinberg, S.M., Fairley, J. and Kreamer, D. K., 1994. Slow Desorption of Toluene from Several Ion-Exchanged Montmorillonites. J.Soil Contamination 3(3):249-264.

Stetzenbach, K.J., Amano, M., Kreamer, D. K., and V.F. Hodge, 1994. Testing the Limits of ICP-MS: Determination of Trace Elements in Ground Water at the Part-Per-Trillion Level. Ground Water. Vol 32. No. 6, p. 976-985.

Johnson, T.E. and Kreamer, D. K., 1994. Physical and Mathematical Modeling of Diesel Fuel Liquid and Vapor Movement in Porous Media. Ground Water, Vol. 32, No. 4., p. 551-560.

Kreamer, D. K., Oja K.J., Steinberg, S.M., and H. Phillips, 1994. Vapor Adsorption of a Solvent on Quartz Sands of Varying Grain Size. Journal of Environmental Engineering, ASCE, Vol. 120, No. 2, p. 348-358.

Steinberg, S.M. and Kreamer, D. K., 1994. Determination of Sorption Isotherms for Volatile Organic Compounds on Unsaturated Calcareous Soil from Southern Nevada Using Inverse Chromatography. Environmental Science and Technology. Vol. 27, No. 5, 883-888.

Suchomel, K.H., Kreamer, D. K., and A. Long, 1990. Production and Transport of Carbon Dioxide in a Contaminated Vadose Zone: A Stable and Radioactive Carbon Study. Environmental Science and Technology, Vol. 24, No. 12, p.1824-1831.

Kreamer, D. K. and K.J. Stetzenbach, 1990. Development of a Standard, Pure-Compound Base Gasoline Mixture for Use as a Reference in Field and Laboratory Experiments. Ground Water Monitoring Review, Spring 1990, p.135- 145.

Houston, S.L., Kreamer, D. K. and R. Marwig, 1989. A Batch-Type Testing Method for Determination of Adsorption of Gaseous Compounds on Partially Saturated Soils. Geotechnical Testing Journal, ASTM, March 1989, p.3-10.

Kreamer, D. K., Weeks, E.P. and G.M. Thompson, 1988. A Field Technique to Measure the Tortuosity and Sorption-Affected Porosity for Gaseous Diffusion of Materials in the Unsaturated Zone with Experimental Results from near Barnwell, South Carolina. Water Resources Research, Vol. 24, No. 3, p.331-341.

Johannesson, K.H., Stetzenbach, K.J., Frum, C.I., Loa, K., Rabinowitz, I., Farnham, I., Guo, C. Hodge, V.F., and Kreamer, D. K., 1994. Geochemistry and Speciation of the Rare Earth Elements in Groundwaters from Ash Meadows, Nevada, and Death Valley, California and Nevada. EOS, Vol. 75, No. 16, p. 149.

Johnson, T.E., James, D.E., and Kreamer, D. K., 1994. Modeling of Subsurface Dioxin Transport in a Tropical Near- Shore Marine Environment. Pacific Northwest/ Oceania Conference; Assessment of Models for Groundwater Resources Analysis and Management. Oahu, HI, March 21-23, 1994.

Johnson, T.E., Kreamer, D. K. and D.E. James, 1994. Results and Limitations of Semianalytical Modeling of Flow and Hydrocarbon Transport in a Coral Atoll Environment. Pacific Northwest/ Oceania Conference; Assessment of Models for Groundwater Resources Analysis and Management. Oahu, HI, March 21-23, 1994.

Kreamer, D. K., 1992. Water Transfers - The Last Resort. (Invited Paper) American Water Resources Association 28th Annual Conference and Symposium on Managing Water Resources During Global Change, (International Conference). Reno, NV, November, 1992.

Steinberg, S.M. and Kreamer, D. K., 1993. Persistence of Several Volatile Organic Compounds in a Low Organic Carbon, Calcareous Soil from Southern Nevada. Proceedings of the National Symposium on Measuring and Interpreting VOCs in Soils: State of the Art and Research Needs. U.S. Environmental Protection Agency, Jan.12-14, Las Vegas, NV.

Houston, S.L. and Kreamer, D. K., 1989. Effect of Temperature on the Potential for Gaseous Adsorption by Partially Saturated Soils, Engineering Geology and Geotechnical Engineering, Watters (ed.) p.357-361. A.A.Balkema/ Rotterdam/Brook, Hardbound, ISBN 90 6191 878 2.

Oja, K.J. and Kreamer, D. K., 1992. (Invited Paper). The Effect of Moisture on Adsorption of Trichloroethylene Vapor on Natural Soils. Proceedings of the U.S. Environmental Protection Agency and National Center for Ground Water Research Symposium on Soil Venting, April 29 - May 1, 1991, Houston, TX, p 13-28. Softbound.

Steinberg, S.M. and Kreamer, D. K., 1992. Determination of Sorption Isotherms for Volatile Organic Compounds on Soil using Gas Chromatography. Structure, Bonding, and Kinetics at Mineral Surfaces Symposium, American Chemical Society, April 5-10, 1992, San Francisco.

Deacon, J. and Kreamer, D. K.. A Water Strategy for Southern Nevada, Joint Conference of the Nevada Water Resources Association, and Aquavision. Las Vegas, NV, February 1992.

Kreamer, D. K., Starr, K., Chaganti, S., Johnson, T. and H.A. Phillips, 1990. Gasoline Vapor Compound Ratios as a Tool to Locate Subsurface Fuel Leaks; from Minimizing Risk to the Hydrologic Environment, Selected Papers from the American Institute of Hydrology Conference, Las Vegas, Nevada, March 13-15, 1990, p.243-249. Softbound.

Weaver, J., Enfield, C.G., Yates, S., Kreamer, D. K. and D. White, 1989. Predicting Subsurface Contaminant Transport and Transformation: Considerations for Model Selection and Field Validation. U.S. Environmental Protection Agency Publication EPA/600/2-89/045, 60p.

Video:
• Physical Modeling of Subsurface Fuel Migration by Controlled Laboratory    Tests. (10 mins.)
• Effects of Water Table Fluctuations on the Distribution of Light Non-Aqueous    Phase Liquids. (15 mins.)

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Student Advisement

Dr. Kreamer is presently serving, or has served since 1991, on the committees of 55 graduate students, 7 of which are at the Ph.D. level.  He is, or has been, committee chair or co-chair for 22. Dr. Kreamer is serving and, as Director of the Water Resources Management Program, has served, as the initial academic advisor for many more students who are not included in the above numbers. He has served as the Graduate College outside Representative on many other graduate committees. 
       
Current and Past Students

• Fairley, Jerry Paul, Jr., 1992, Desorption hysteresis in five ion exchanged    montmorillonites [MS thesis]: University of Nevada, Las Vegas, 43 p.
• Sabapathi, Jaishankar, 1993, Effect of water table fluctuations on petroleum    contamination distribution [MS thesis]: University of Nevada, Las Vegas,    125 p.
• Schmeltzer, John S., 1993, Effects of soil moisture, soil carbonate and    organic matter contents on vapor phase sorption of volatile organic    compounds using inverse gas chromatography [MS thesis]: University of    Nevada, Las Vegas, 115 p.
• Rajagopalan, Vasanthakumar, 1995, Influence of grain size of a porous    medium on the movement of diesel fuel due to water table fluctuations [MS    thesis]: University of Nevada, Las Vegas, 73 p.
• Zukosky, Kim A., 1995, An assessment of the potential to use water    chemistry parameters to define ground water flow pathways at Grand    Canyon National Park, Arizona [MS thesis]: University of Nevada, Las    Vegas, 105 p.
• Fitzgerald, Jim, 1996, Residence time of groundwater issuing from the South    Rim Aquifer in the eastern Grand Canyon [MS thesis]: University of Nevada,    Las Vegas, 103 p.
• Squire, Joseph J., 1996, Effect of unsaturated zone soil moisture content on    vapor phase pollutant propagation in controlled laboratory experiments [MS    thesis]: University of Nevada, Las Vegas, 127 p.
• Yelken, Mary A., 1996, Trace element analysis of selected springs in the    Virgin River Basin [MS thesis]: University of Nevada, Las Vegas, 156 p.
• Lawson, Stephen M., 1997, Sublimation from snow packs in Toiyabe    National Forest, Nevada and Dixie National Forest, Utah [MS thesis]:    University of Nevada, Las Vegas, 87 p.

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