Department of Natural Resources & Environmental Science
Mark Walker

Photo of Mark Walker
Dr. Mark Walker, PhD, Extension Water Specialist

Associate Professor, State Specialist
Department of Natural Resources and Environmental Science
University of Nevada/Mail Stop 370
1664 North Virginia Street
Reno,  Nevada   89557

 

Office: (775) 784-1938
Fax: 784-4789

Cell: 313-2614

Email: mwalker@cabnr.unr.edu
Building: Max Fleischmann Agriculture,  Office 132
Personal Web: http://www.ag.unr.edu/walker
 
 
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EDUCATION

English and Journalism, S.U.N.Y Binghamton
University of Arizona
Cornell University, 1998

 

 
COURSES & TEACHING RESPONSIBILITIES
NRES 304 - Principles of Hydrology for Natural Resources Management
 
REPRESENTATIVE PUBLICATIONS

Walker, M.J., B. Wilcox, M. Wong. Watershed Development, Hydrologic Response and Emerging Infectious Disease Risk. Journal of Water and Health, 2006 (submitted, in review)

Walker, M.J., D. Shaw., M. Benson. Arsenic consumption and health risk perceptions in a rural western U.S. area, Journal of the American Water Resources Association, 2006 (in press).

Yeghiazarian, L.L., M.J. Walker, C. D. Montemagno, P. Binning, J.-Y. Parlange. Micro- and macroscopic approach to modeling the transport of pathogenic microorganisms and other colloidal particles from non-point sources of pollution. 2006 (in press).

Water Resources Research Shaw, W.D., M.J. Walker, M. Benson. 2005. Treating and Drinking Well Water in the Presence of Health Risks from Arsenic Contamination: Results from a U.S. Hot Spot. Risk Analysis 25(6): 1531-1544

Walker, M.J., M. Benson, W. D. Shaw. 2005. Significance of private water supply wells as a route of exposure to aqueous arsenic. Journal of Water and Health (published by WHO) 3(3):305-312

Walker, M.J., Kutsch, R., W.W. Miller, A. Cirelli, S. Donaldson. 2005. A Consistent Hoof Impact Simulator. Soil Science Society of America Journal, 69:257-259

Walker, M.J., D. Redelman. 2004. Detection of Cryptosporidium parvum in Soil Extracts. Applied and Environmental Microbiology,70(3):1827-1829

Walker, M.J. 2004. Waterborne Diseases. (in) Encyclopedia of Water (Lehr, J. (ed)). John Wiley Publishers

Walker, M.J., R. Moore. 2003. A Web Site for Interpreting Drinking Water Quality Analyses. Journal of Extension 41(1).

Benson, M., M.J. Walker, C. Montecinos. 2002. Consumer Confidence Reports: Assessments by Community Water System Managers in Nevada, Journal of the American Water Works Assocation, 94(3):63-70

Walker, M.J., K. Leddy, E. Hager, 2001. Effects of Combined Water Potential and Temperature Stresses on Cryptosporidium parvum Oocysts, Applied and Environmental Microbiology, 67(12):5526-5529

Jenkins, M., M.J. Walker, D. Bowman, L. Anthony, W. Ghiorse 1999. "Use of a Sentinel System for Field Measurements of Cryptosporidium parvum Oocyst Inactivation in Soil and Animal Waste," Applied and Environmental Microbiology 65(5):1998-2005

Walker, M.J., C. Montemagno. 1999. "Sorption of Cryptosporidium parvum Oocysts in Aqueous Solution to Metal Oxide and Hydrophobic Substrates," Environmental Science and Technology 65(5):3134-3139

Walker, M.J., C. Montemagno, M.B. Jenkins. 1998. "Source water assessment and nonpoint sources of acutely toxic contaminants: A review of research related to survival and transport of Cryptosporidium parvum." - Water Resources Research 34(12):3383-3392

Walker, M.J., C. Montemagno, W.C. Ghiorse, J.E. Bryant. 1998 "Method Detection Limits for Cryptosporidium in Soil using Polymerase Chain Reaction and Immunofluorescence Assay," Applied and Environmental Microbiology, 64(6):2281-2283

Walker, M.J., W. Johnson. 1998. "Protecting Nevada's Water", SP-98-03A, University of Nevada, Reno

Jenkins, M.B. Anguish, L.J., M.J. Walker, D.D. Bowman, W.C. Ghiorse. 1997. "Assessment of a Dye-Permeability Assay for Determination of Inactivation Rates of Cryptosporidium parvum Oocysts," Applied and Environmental Microbiology 63(10):3844-3850

Walker, M.J.., Walter, M., McDonough, K. 1997. "Large-Volume Samples for Cryptosporidium and Giardia spp. from Small Streams," Journal of Environmental Engineering, American Society of Civil Engineers, 123(1), 89-92

Jones, R., Kirkland, D., Porter, K., Walker, M.; Measurement of Aldicarb Degradation and Movement in Upstate New York and Massachusetts Potato Fields, Journal of Contaminant Hydrology, 28(7) 1992.

Walker, M.J., and Porter K.; Assessment of Pesticides in Upstate New York Groundwater, Ground Water Monitoring Review, Winter, 1990.

 

Book or Chapter(s) in Books
Walker, M. J., Wilcox, B., Wong, M. 2008, "Waterborne Zoonoses and Changes in Hydrologic Response Due to Watershed Development." In Fares, A.; Elkadi., A.I. (Ed.), Coastal Watershed Management (pp. 349-359). Wessex: WIT Press.  
Bulletin/Reports
Fosbury, D., Walker, M. J., Stillings, L. 2008, "Chemical Analyses of Ground Water in the Carson Desert near Stillwater, Churchill County, Nevada, 2005" Washington, D.C./U.S. Geological Survey: Open File Report/U.S. Geological Survey, (pp. 17 pages).  
Journals
Walker, M. J., Seiler, R., Meinert, M. 2008, "Effectiveness of household reverse osmosis systems in a Western U.S. region with high arsenic in groundwater." Science of the Total Environment, 389(2-3), 245-252.  
Garfield, L. M., Walker, M. J. 2008, "Water Potential Changes in Fecal Matter & E. coli Survival." Journal of Applied Microbiology, 105, 1009-1016.  
Professional Papers
Walker, M. J. 2008, "). Method Development and Preliminary Applications for Leptospira Spirochetes in Water Samples: EPA/600/R 08/17." Cincinnati, OH: U.S. Environmental Protection Agency’s National Homeland Security Research Center, Cincinnati, OH.