Early in my career as a groundwater hydrologist, my computing skills facilitated some pioneering simulation work, mainly in fracture system flow and transport. With the advent of computer specialists, I have relinquished the hands-on work to others, while emphasizing my broad experience as a reviewer and analyst. While I have the necessary knowledge of the capabilities and limitations of modeling methods, much that I contribute is by critiquing assumptions, underlying geology, boundary conditions and material properties.
| 1962-64 | Research on flow of water through fractured media, including computer-assisted statistics, modeling and graphics; Prof. Irving Fatt, thesis supervisor, Prof. Paul A. Witherspoon, committee. |
| 1964-1972 | Research on hydrodynamic dispersion in fractured media, development of theory and simulation models, with applications to radionuclide transport in fractured tuff and granite; Sponsor, Hazleton Nuclear Science-Teledyne Isotopes, Inc., Drs. John V. A. Sharp, Paul R. Fenske. |
| 1965-66 | Research on porosity of fractured media and aperture distribution; model development for applications in civil engineering, including grouting and tunnel inflows; American Cyanamid Co. Sponsor, Reuben H. Karol. |
| 1968-70 | Research on hydraulic properties of fractured basement rocks, model application to evaluate injection hydraulics, Rocky Mountain Arsenal disposal well; sponsor, State of Colorado, Dr. Robert Weimer. |
| 1969-1974 | Research on reservoir-induced seismicity, computer simulations of reservoir-modified potentiometry, for Lakes Mead and Flathead, U.S.A.; reservoirs at Kremasta and Kastraki, Greece; Monteynard, France; Bileca, Yugoslavia; Kariba, Rhodesia; Koyna, India; Sponsor, U.S. Geological Survey, Dr. Barry Raleigh. |
| 1965-1976 | Directed thesis research including modeling: Elastic properties of fractured media, Dr. William M. Shehata; Hydrogeology of Pikes Peak Granite, Luis Bianchi; Transient analysis of stream depletions by pumping valley aquifers, Theodore Hurr; Seepage below Denver-Basin dams, Shadul M. Shadul; Recharge of alluvial cones, Dr. David Hundey. |
| 1962-72 | Committee member, 5 Ph.D. theses at University of California, Berkeley, on hydraulics of fractured media, each including modeling; with Prof. Paul A. Witherspoon. |
| 1966-67 | Modeling drainage to limestone quarries under glacial till, S.E. Michigan; Clients: Martin-Marietta Corp., Karl Houser; American Cement Co., Cyril Jones. |
| 1975-80 | Modeling of hydrologic effects of mine closure for acid-effluent abatement of Mt. Emmons Mine, Colorado; Amax Environmental Services Corp., Ralph M. Crosser. |
| 1977 | Model to determine phreatic surface, pit slopes of Copper Mt. Mine, Wyoming; Rocky Mountain Energy Co., John Albers. |
| 1977-78 | Modeling of phreatic surface, Pitch Mine, Colorado; Mersh Ward of Homestake Mining Co., and John Marek of Pincock, Allen and Holt, Inc. |
| 1979 | Modeling phreatic surface, Mt. Tolmon open-pit mine, Washington; Climax Molybdenum Corp., Dr. Stanley Miller of Pincock, Allen and Holt, Inc. |
| 1979 | Drainage model of pit slopes and design of well field, Hanson Mine, Colorado; Cypress Mines, Inc., Chris Hartman. |
| 1980-81 | Model of Mammoth Mine,Colorado, dewatering and test analysis, for Union Mines, Inc., John Welsh of Stephen Robertson, Inc. |
| 1986-1988 | Consultant to Science Applications International Corporation for U.S. Geological Survey, Yucca Mountain Project. Saturated and unsaturated flow through fractured tuff; Dr. Parviz Montazer, USGS; Tim Barbour, SAIC. |
| 1988-89 | Consultant on hydrology and modeling of contaminant plume, Stringfellow Superfund Site, California; Science Applications International Corp. and California Department of Health Services, Michael Sorenson. |
| 1989 | Consultant to, and witness for City of Mont Belview, Texas on models submitted to describe injection and transport hydrulics, Barber's Hill hydrocarbon storage facility. |
| 1989-90 | Reviewer of hydrology and models of contaminant transport at Bunker Hill Superfund Site; for EPA and SAIC oversight contract of Dames and Moore work products, Eileen Hanford. |
| 1989-1990 | Consultant to Woodward-Clyde Consutants on design of model to evaluate drainage and impacts to springs, Inland Feeder and Cleveland Tunnels, Tom Freeman |
| 1990 | Reviewer of model of contaminant migration and capture by wells of City of Mountain View, California; Science Applications International Corp., Muriel Waller. |
| 1992 | Reviewer of hydrological modeling by Science Applications, OII Landfill Superfund Closure, Montbello, California. |
| 1991, 1994-95 | Consultant to DOE on Sandia modeling of flow and transport of radionuclide contaminants from WIPP facilites, Carlsbad, NM. |
| 1995-1996 | Consultant to Hydro-Geo Consultants, Inc., review of modeling of mine impacts, Crown Jewel Project, Washington, Supervision of revised modeling and presentation for EIS. |
| 1991, 1994-95 | Consultant to DOE, Carlsbad, NM |