John
McCray, Ph.D.
Associate
Professor
Colorado School of Mines
Environmental Science & Engineering Division
Golden, CO, 80401
Telephone:
(303) 273-3490
Email: jmccray@mines.edu
Education
- Ph.D. Hydrology and Water Resources, The University of Arizona, 1998.
- M.S. Environmental Systems Engineering, Clemson University, 1994.
- B.S. Electrical Engineering, West Virginia University, 1986.
Other Academic Affiliations
- Director, Hydrologic Science and Engineering Graduate Program
- Vice-Chair, ASCE National Ground Water Quality Committee
- Associate Director, Center for Environmental Study of Subsurface Processes (CESEP)
- Associate Editor, Ground Water
- Associate Editor, Journal of Contaminant Hydrology
- Associate Editor, Vadose Zone Journal
- Interdisclipinary Graduate Program in Geochemistry
- International Ground Water Modeling Center (IGWMC)
- Adjunct Assistant Professor Soil and Crop Sciences Dept., Colorado State University
Research Interests
My research interests are primarily in the broad field of contaminant hydrogeology. In particular, I am currently focusing on these areas: flow and transport of wastewater contaminants in the vadose zone (pharmaceuticals, nutrients, microbes); watershed-scale pollutant transport and modeling; infiltration and ground-water recharge at site to regional scales; nonequilibrium mass transfer and transport of NAPL mixture contaminants in groundwater; innovative remediation techniques for organic contaminants in aquifers, including chemical oxidants, bio-remediation, and polymer-enhanced delivery; riverbank filtration of pharmaceutical and other emerging organic contaminants; fate, transport and remediation of contaminants in fractured-bedrock aquifers; ground-water modeling to assess the impact of water-resources on population dynamics of ancient native Americans; and quantitative assessment of CO2 sequestration in saline aquifers. Nearly all my research incorporates analysis of field or laboratory experimental data with mathematical models to elucidate the phenomena of interest.
Our research group is a close knit group with working ties across the CSM campus and abroad. We are involved in research projects with the USGS, U.S. Dept. of Defense, U.S. EPA, Water Environment Research Foundation, the City of Aurora Colorado, Los Alamos National Laboratory, and private industry. I also work closely with colleagues at Colorado State University, The University of Arizona, the University of Rhode Island, Louisiana State University, University of Texas at San Antonio, Eastern Tennessee State University, Auburn University, University of Georgia, Deschutes County Oregon, Jefferson County Colorado, Shaw Environmental and Infrastructure, and CH2MHill.
Current and Former Graduate Students
Theses and Dissertations of McCray's Students
Funded Research Projects (pdf)
Some Recent Publications
Gurdak, J.J., Hanson, R.T., McMahon, P.B., Bruce, B.W., McCray, J.E., Thyne, G.D., 2006. Climate variability controls on unsaturated water and chemical movement, High Plains aquifer, Vadose Zone Journal, in press.
Skold, M., Thyne, G., Drexler, J., McCray, J.E. 2007. Determining conditional stability constants for Pb complexation by carboxymethyl-beta-cyclodextrin (CMCD) from experimental data using inverse geochemical modeling, J. Contaminant Hydrol., in press.
Lipson, D.L., McCray, J.E., Thyne, G.D., 2007. Using PHREEQC to simulate solute transport in fractured bedrock, Ground Water, 45(4), 468472.
Geza, M., McCray, J.E., 2007. Effects of soil data resolution on SWAT model stream flow and water quality predictions, Journal of Environmental Management, doi:10.1016/j.jenvman.2007.03.016
Bumgarner, J., McCray, J.E., 2007. Estimating biozone hydraulic conductivity in wastewater soil-infiltration systems using inverse numerical modeling, Water Research, 41 (11), 2349-2360.
McCray, J.E., Kirkland, S.L., Siegrist, R.L., Thyne, G.D., 2005. Transport-model input parameters for onsite-wastewater nutrients, Ground Water 43(4), 628-639.
Heatwole, K.K., McCray, J.E., 2006. Modeling potential vadose-zone transport of nitrogen from onsite wastewater systems at the development scale, J. Contaminant Hydrology 91, (1-2), 184-201.
Lemonds, P.J., McCray, J.E., 2006. Modeling hydrology in a small Rocky Mountain watershed serving large urban populations, in press by J. Amer. Water Resources Assoc.(JAWRA) 43(4), 875-887.
Statom, R.A., McCray, J.E, Thyne, G.D., 2006. Conceptual model for landfill hydrologic transport developed using chloride tracer data and dual-domain modeling, Environmental and Engineering Geosciences, 12(1), 67-78.
Poeter, E.P., McCray, J.E, 2006. Modeling water-table mounding to design cluster and high-density wastewater soil absorption systems, submitted to ASCE J. Hydrologic Engineering.
Murray, K.E., and McCray, J.E., 2005, Development and application of a regional-scale pesticide transport and groundwater vulnerability model, Environ. Engnrng. Geoscience, 11(3), 271-284.
Divine, C.E., McCray, J.E., 2004. Estimation of membrane diffusion coefficients and equilibration times for LDPE passive diffusion samplers, Environ. Sci. Technol., 38(6); 1849-1857.
McCray, J.E. and Dugan, P.J., 2002. Nonideal equilibrium dissolution of trichloroethene from a decane-based NAPL mixture: Experimental and modeling investigation, Water Resources Research, 38(7), 2.2-2.9.
Complete list of publications (pdf)
