John J. Ward, RG, Groundwater Consultant


I am a professional geologist and certified hydrogeologist with more than 35 years’ experience managing environmental, watershed, and groundwater projects in the United States and overseas. Professional responsibilities have covered many aspects of hydrogeology, including groundwater resource assessment, watershed and agricultural analyses, flow and transport modeling, and isotopic chemistry. I am expert witness qualified. A significant amount of testifying expert work has been on water rights, differing site conditions (DSC) disputes, and subsurface contamination liability cases. I also consult on water quality, water supply development, agricultural water use, and construction and mine dewatering.

Since forming John J. Ward, RG, Groundwater Consultant in 2002my work has primarily focused on the following specialties:

My company is based on the following core principles:

  • Engage in challenging and selective projects at a reasonable price.
  • Stay within core expertise; form associations with and use complementary skills of other professionals as needed.
  • Keep abreast of the science through active engagement in peer review, editorship of professional journals, and active membership on technical committees.


  • Registered Professional Geologist (R.G.) – Arizona: 18435
  •  Registered Professional Geologist (R.G.) – California: 4101
  • Certified Professional Geologist – American Institute of Professional Geologists: 6729
  • Certified Hydrogeologist – California: 149
  • MS (Hydrology) 1980, BS (Hydrology) 1975, College of Earth Sciences, The University of Arizona.
  • Continuing education courses in contaminant transport, groundwater modeling, soil vapor extraction, well installation, professional ethics, mediation techniques.


  • President, Arizona Section of the American Institute of Professional Geologists, 2010 – 2012. Certified Professional Geologist and member since 1985.
  • Associate Editor, Journal of Ground Water, the premier scientific publication for groundwater hydrologists, 2006 – 2014. Also served as peer reviewer for the Journal during the past two decades.
  • Technical Advisor to the U.S. Forest Service on protection of National Forest water resources and aquatic ecosystems, and development of water protection projects under the New Mexico Unit of the Arizona Water Settlements Act, 2009 – 2012.
  • Contributor and Member, Committee on Subsurface Characterization for Deep Foundations, Deep Foundations Institute, current.


  • 2002 – present – Principal Hydrogeologist and Owner, John J. Ward, RG, Groundwater Consultant, LLC
  • 1992 – 2002 – Associate Hydrogeologist, Hydro Geo Chem, Inc. Arizona
  • 1987 – 1992 – Associate Hydrogeologist, Harding Lawson Associates. California, Arizona, Hawaii
  • 1987 – Independent Consultant, Washington and Arizona
  • 1980 – 1986 – Senior Hydrogeologist, Hydro Geo Chem, Inc. Arizona
  • 1976 – 1977 – Hydrogeologist, P.E. LaMoreaux and Associates, Florida


Please select from menu above for categorized project descriptions.


  • Ward, J.J., 2002, Groundwater on the Plateau – Collaborative Effort Produces New Report on the C Aquifer. South West Hydrology Magazine. November-December 2002.
  • Hart, R., J.J. Ward, D. Bills, and M.E. Flynn, 2002, Generalized Hydrogeology and Estimated Groundwater Budget for the C Aquifer, Little Colorado River Basin and Parts of the Verde and Salt River Basins, Arizona and New Mexico. U.S. Geological Survey Water Resources Investigation Report WRI 02-4026.
  • Ward, J.J., 1998, Arid Zone Landfills – What do Investigations and Modeling of Contaminant Migration Reveal about Transport Mechanisms? Arizona Hydrologic Society, 11th Annual Symposium.
  • Ward, J.J., 1996, Choosing and Managing Your Environmental Consultant. Pima County Bar Association – Environmental Law Section.
  • Veggeberg, S. and J.J. Ward, 1986, Studies of Vapor Movement in the Vadose Zone and Their Implications for Determination of Leakage from Underground Storage Tanks. Presented to Arizona Departments of Water Resources and Health Services. January 1986.
  • Neuman, S.P., G.R. Walter, H.W. Bentley, J.J. Ward, and D.D. Gonzalez, 1984, Determination of Horizontal Aquifer Anisotropy with Three Wells. Ground Water, Vol 22, pp. 66-72.
  • Ward, J.J., 1983, Heterogeneity and Anisotropy in a Fractured Carbonate Aquifer. Presented at American Geophysical Union Fall Meeting, San Francisco. December 1983.
  • Walter, G.R., H.W. Bentley, J.J. Ward, and D.D. Gonzalez, 1983, Continuum and Non-continuum Aspects of Groundwater Movement at the Waste Isolation Pilot Plant, Southeastern New Mexico. EOS (abs), vol 64(45), American Geophysical Union.
  • Walter, G.R., H.W. Bentley, and J.J. Ward, 1983, Field Characterization of Groundwater Transport Properties at the WIPP: Problems and Progress. Workshop on Field Methods for the Assessment of Radionucliide Sorption.