DBS&A Publications and Presentations

Alternative Covers

• Sweetland, N.T., J. Sterling, and J. Bowden. 2005. Innovative Tools for Internet Accessible Environmental Databases. Presentation at the EIMS–Environmental Information Management Systems Conference, Groundwater Resources Association of California, January 26, 2005, San Jose, California.
• Calhoun, K.C., N. Sweetland, Ph.D., R.G., and Jenny Sterling. 2005. Innovative tools for internet accessible environmental databases. Presentation at National Ground Water Association’s Groundwater Summit 2005, San Antonio, Texas, April 21, 2005.
• Stormont, J.C., M.D. Ankeny, M.E. Burkhard, M.K. Tansey, and J.A. Kelsey. 1993. Assessment of an active dry barrier for a landfill cover system. In Sandia National Laboratories Report SAND94-0301, UC-721, February 1994.
• Ankeny, M.D., L.M. Coons, N. Majumdar, J. Kelsey, and M. Miller. 1997. Performance and cost considerations for landfill caps in semi-arid climates. In Proceedings of Landfill Capping in the Semi-Arid West: Problems, Perspectives, and Solutions. Environmental Science and Research Foundation, May 1997.

Environmental Compliance/Management

• Cullen, S.J. 2005. Invited speaker, The importance of environmental protection of soil and groundwater worldwide. The Santa Barbara Groundwater and Vadose Zone Instrumentation Workshop, Soilmoisture Equipment Corp., May 16, 2005, Goleta, California.
• Stephens, D.B. 2005. A perspective on science and research in the environmental consulting industry. Presented at the American Geophysical Union Fall Meeting, December 5-9, 2005, San Francisco, California.
• Davis, D.W. and N.T. Sweetland. 2004. Rethinking traditional approaches for groundwater remedial actions - Rancho Cordova case study. Presented at the Cl04 2004 - Perchlorate in California's Groundwater, Groundwater Resources Association of California, August 4, 2004, Glendale, California.
• Stageman, J.C. and D.B. Stephens. 1993. The consultant's role in addressing environmental risks in real estate and lending. Presentation at Cambridge Institute Continuing Legal Education Seminar, Tackling Environmental Issues in New Mexico.
• Hilton, J. and D. Cartron. 1998. Understanding your obligations under the Clean Water Act. Presented at the U.S. Environmental Laws & Regulations Compliance Course, June 1998, sponsored by Government Institutes.

Environmental Litigation

• Molina, A.F., N.T. Sweetland, and M.I. Kaplan. 2006. Mapping exposure locations for an environmental litigation case. Poster Presentation at AWRA’s 2006 Spring Specialty Conference, GIS and Water Resources IV, Houston, Texas, May 8-9, 2006.
• Calhoun, K.C. 2006. GIS Technologies as evidence. Presentation at New Mexico Trial Lawyers Association annual seminar on evidence in the courtroom, Albuquerque, New Mexico, March 10, 2006.
• Cullen, S.J. 2005. Environmental forensics: Focus on perchlorate. Presented at the International Society of Environmental Forensics Workshop, September 21-22, 2005, Santa Fe, New Mexico
• Molina, A.F. 2004. GIS development in support of environmental litigation. Poster Presentation at ESRI 2004 Users Conference, San Diego, California. August 9-13, 2004.
• Stephens, D.B., and T.N. Blandford. 2004. Hydrogeologic analysis, transport and modeling for environmental litigation: A case study. Presented at National Ground Water Association Ground Water and Environmental Law Conference, May 5-6, 2004, Chicago, Illinois.
• Sweetland, N.T., T.G. Umstot, and D.B.Stephens. 2004. Distinguishing operational releases versus spills for insurance allocation. Poster presentation at the Investigation and Remediation of Dry Cleaner Release Sites, April 7, 2004, Sacramento, California.
• Salvas, B. 2003. Technical and physical feasibility fact sheet, alternative 24: Reuse greywater. In evaluation of alternative actions for technical, physical, hydrological, environmental, economic, social, cultural, and legal feasibility and water quality issues and legal overview. Prepared for the Mid Region Council of Governments and the Middle Rio Grande Water Assembly, February 2003.
• Cullen, S.J. 2005. Environmental forensics: Focus on perchlorate. Presented at the International Society of Environmental Forensics Workshop, September 21-22, 2005, Santa Fe, New Mexico
• Ankeny, M.D., L.M. Coons, N. Majumdar, J. Kelsey, and M. Miller. 1997. Performance and cost considerations for landfill caps in semi-arid climates. In proceedings of Landfill Capping in the Semi-Arid West: Problems, Perspectives, and Solutions. Conference hosted by Environmental Science and Research Foundation, May 1997.
• Hilton, J. and D. Cartron. 1998. Understanding your obligations under the Clean Water Act. Presented at the U.S. Environmental Laws & Regulations Compliance Course, sponsored by Government Institutes. June 1998.
• Stephens, D.B. 1996. Estimating cleanup costs for purposes of mediation: Achieving finality in face of uncertainty. Presented at Resolving Environmental Disputes Through Mediation Conference, University of Wisconsin, May 16-17, 1996, Albuquerque, New Mexico.
• Stephens, D.B. 1996. Hydrogeology and contaminant transport. Presented at The Who, What, Where & How of Toxic Tort Litigation, The Arizona Bar Association Continuing Legal Education, November 22, 1996, Phoenix, Arizona.
• Stephens, D.B. 1998. Scientific applications of volume mass and toxicity for allocating responsibility for aquifer clean-up. Presented at the National Environmental Forensic Conference: Chlorinated Solvent and Petroleum Hydrocarbons, University of Wisconsin-Madison, Department of Engineering Professional Development, August 27-28, 1998, Tucson, Arizona.
• Stephens, D.B., and T.N. Blandford. 2001. Hydrogeologic analysis, transport and modeling for environmental litigation: A case study. Presented at the Arizona Hydrological Society Fourteenth Annual Symposium, September 12-15, 2001, Tucson, Arizona.
• Stephens, D.B., J.A. Kelsey, M.A. Prieksat, M.G. Piepho, M.D. Ankeny, and C. Shan. 1996. DNAPL migration in a complex multi-aquifer system. Presentation at Geological Society of America Annual Meeting, Denver, Colorado, October 28-31, 1996.
• Stephens, D.B., J.A. Kelsey, M.A. Prieksat, M.G. Piepho, C. Shan, and M.D. Ankeny. 1998. DNAPL migration through a fractured perching layer. Ground Water 36(4). Full article.
• Stephens, D.B. 1997. Case studies in DNAPL delineation, technical infeasibility and remediation cost allocation. Invited keynote speaker at the International Conference on Remedial Technology and Management of Subsurface Contamination, December 1-3, Taipei, Taiwan.
• Stephens, D.B. 1999. Scientific applications of volume, mass and toxicity for allocating cleanup responsibility. Invited presentation at IBC’s Second Annual Executive Forum on Environmental Forensics, June 24-25, 1999, Washington, D.C.
• Hsu, K.-C., D. Jordan, T.N. Blandford, D.W. Reaber, and J.L. Wilson. 1998. Evaluation of local-scale contaminant migration within a heterogeneous alluvial basin in the southwest. Presentation at National Ground Water Association 1998 annual convention and exposition, Las Vegas, Nevada.
• Graves, B.J., D. Jordan, D. Cartron, D.B. Stephens, and M.A. Francis. 2000. Allocating responsibility for groundwater remediation costs. The Trial Lawer 23(4):159-171. Full article.
• Stephens, D.B. and T. Neil Blandford. 2001. Hydrogeologic analysis, transport and modeling for environmental litigation: A case study. Presentation at the First International Congress on Petroleum Contaminated Soils, Sediments, and Water Analysis, Assessment and Remediation, August 14-17, 2001, London, United Kingdom.

Hydrologic Testing

• Stephens, D.B., J.A. Kelsey, J. Hines, J. Kay, and E. Pease. 2007. Elements of vadose zone hydrology. Invited short course at National Ground Water Association 2007 Ground Water Summit. April 29, 2007, Albuquerque, New Mexico
• Cullen, S.J., R. Sahu, D. Reaber, N. Blandford, and M .Jones. 2006. Hydrogeology and perchlorate impacts near the Las Vegas Wash, Henderson, Nevada. Presented at the 2006 East Valley Water District Water Quality/Regulatory Conference in Ontario, California. October 11-13.
• Ergas, S.J., J. Harrison, J. Bloom, K. Forloney, D.P. Ahlfeld, K. Nusslein and R.F. Yuretich. 2005. Natural attenuation of acid mine drainage by acidophilic and acidotolerant Fe(III)- and sulfate-reducing bacteria. In Innovative Approaches for the Remediation of Subsurface-Contaminated Hazardous Waste Sites: Bridging Flask and Field Scales, ACS Symposium Series Book.
• Marley, B., B. Newcomer, and N. Nutongla. 2004. C-Aquifer Exploration near Moenkopi, Arizona. Abstract with program, Arizona Hydrological Society Annual Meeting, Tucson, Arizona.
• Gray, R.N. 2004. Los Alamos Canyon alluvial water level study. Prepared for the Risk Reduction and Environmental Stewardship Division - Environmental Characterization and Remediation Group, Los Alamos National Laboratory, Los Alamos, New Mexico.
• Lewis, A., J. Hilton, and B. Vocke. 2003. Jemez y Sangre water plan overview. In Geologic and Hydrogeologic Framework of the Espanola Basin – Proceedings of the 2nd Annual Espanola Basin Workshop, Santa Fe, New Mexico, March 4-5, 2003. U.S.G.S. OF Report 03-369
• Blandford, T.N., M. J. Ronayne and T.L. Shelley. 2003. Lake formation at multiple mine pits – model development and application. Presented at National Ground Water Association Southwest Focus Conference – Water Supply and Emerging Contaminants, February 20-21, 2003, Phoenix, Arizona.
• Hilton, J., B. Marley, T. Ryther, and J. Forbes. 1992. Pilot test of nitrate-enhanced hydrocarbon bioremediation in a moderate to low permeability aquifer. In Proceedings of the 1992 Petroleum Hydrocarbons and Organic Chemicals in Ground Water Conference, November 4-6, 1992, p. 527-540.
• Stephens, D.B. 1996. Borehole permeameter development, applications and limitations. Presented at American Geophysical Union Fall Meeting, December 15-19, 1996, San Francisco, California.
• Stephens, D.B., P. Johnson, and J. Havlena. 1996. Estimation of infiltration and recharge for environmental site assessment. American Petroleum Institute publication number 4643.
• Stephens, D.B., K.C. Hsu, M.A. Prieksat, M.D. Ankeny, T.N. Blandford, T.L. Roth, J.A. Kelsey, and J.R. Whitworth. 1998. A comparison of estimated and calculated effective porosity. Hydrogeology Journal 6:156-165.
• Stephens, D.B., K.C. Hsu, M.A. Prieksat, M.D. Ankeny, T.N. Blandford, T.L. Roth, J.A. Kelsey, and J.R. Whitworth. 2000. Review of porosity measurements for water supply and water quality modeling. Presentation at Southwest Focus Ground Water Conference 2000, Austin, Texas, May 17-18, 2000.
• Stephens, D.B. and E. Seay. 1998. Interpretations of mechanical integrity tests and groundwater monitoring data at a salt water disposal well: A case study. In Proceedings Groundwater Protection Council 1998 Annual Forum, Sacramento, California, September 19-23.
• Shan, C. and D.B. Stephens. 1993. A borehole field method to determine unsaturated hydraulic conductivity. Water Resources Research 29(8):2763-2769.
• Pegram, L.P., M.D. Ankeny, J.A. Kelsey, and M.E. Miller. 1999. Landfill cover permeability measurements using automated air-entry permeameters. In proceedings of 1999 Landfill Symposium presented by the Solid Waste Association of North America, Denver, Colorado, June 28-30, 1999.
• Miller, M.E., M.D. Ankeny, and J.A. Kelsey. 2001. New method for landfill liner and cover permeability measurements using air-entry permeameters. In proceedings of Arizona Landfill and Solid Waste Management Seminar, June 7-8, 2001.
• Kay, J.T., M.H. Conklin, C.C. Fuller, and P.A. O'Day. 2001. Process of nickel and cobalt uptake by a manganese oxide forming sediment in Pinal Creek, Globe Mining District, Arizona. Environmental Science & Technology 35(24):4719-4725.
• Ankeny, M.D., M.E. Burkhard, J.R. Forbes, J.A. Kelsey, and C. Shan. 1994. Passive air flow in soils: Theory, methods and applications. American Geophysical Union Annual Meeting. San Francisco, CA.

Mining

• Earley, D. III and M.W. Staubb. 2006. Sustainable mining best practices and certification. Proceedings ICARD 2006
• Earley, D. III, D.A. Kidd, T.L. Shelley, I. Walder, and E. Salvas. 2003. Slope stability of leached copper stockpiles. Tailing and Mine Waste 2003, Balkema, Rotterdam, p. 273-282. Presented at the Tailing and Mine Waste Conference, Vail, Colorado, U.S.A. in November 2003.
• Newcomer, R, N. and C.P. Wolf. 1999. The use of mine-development models to support mine closure and reclamation planning. Poster presentation at American Society for Surface Mining and Reclamation, Scottsdale, Arizona.
• Earley, D. III, E.A. Parker, and K. Calhoun. 2001. GIS- facilitated, hydrogeochemical modeling for mine waste reclamations. Tailing and Mine Waste 2001. Balkema, Rotterdam, p. 273-282. Presented at the Tailing and Mine Waste Conference, Fort Collins Colorado, U.S.A., January 2001.
• Earley, D. III. 1999. Comparison of state metal mining laws and regulations in the western U.S. In Goldsack, D., N. Belzile, P. Yearwood, and G. Hall (eds.). 1999. Sudbury 1999; Mining and the Environment II; Conference Proceedings, Volume 3, p. 971-980. Presented at the Sudbury 1999 Conference held September 13-17, 1999, Sudbury, Ontario, Canada.
• Schmidt, R.D., L.J. Dahl, K. Kim, F. Paillet, and D. Earley, III. 1997. Characterization of a fracture hosted supergene copper sulfide ore deposit for in situ leaching. International Journal of Surface Mining and Reclamation.
• Earley, D., III and M.E. Berndt. 1997. Solution mining of precious metals using aqueous, sulfur-bearing solutions at elevated temperatures. U.S. Patent Application No. 08/363,119.
• Blandford, N., M.J. Ronayne, and D. Earley, III. 2001. Simulation of lake formation at multiple mine pits in a block faulted porphyry copper deposit. MODFLOW 2001 and Other Modeling Odysseys. Proceedings of the International Ground Water Modeling Conference and Workshop, September 11-14, 2001, International Ground Water Modeling Center, Colorado School of Mines, Golden, Colorado USA, p. 453-459.
• Earley, D. III, E.A. Salvas, M.D. Marcus, T.J. Ward, and B. Ryan. 2002. Development of an aluminum TMDL based on variable biological responses to natural and mining-related ARD impacts to Red River, New Mexico. Proceedings of the Hardrock Mining 2002 Conference: Issues Shaping the Industry. Sponsored by the U.S. Environmental Protection Agency, Office of Research and Development, May 7-9, 2002, Westminster, Colorado USA.
• Jordan, D.L. and K. Calhoun. 2001. Conceptual regrading using 3D GIS to evaluate mine reclamation. In proceedings of ESRI 2001 Users Conference. July 2001.
• Ronayne, M.J., T.N. Blandford, D. Earley III, and R. Schmidt-Petersen. 1999. Simulation of mine pit lake recovery in a block-faulted porphyry copper deposit. Presented at the Annual Meeting of the Geological Society of America, October 25, 1999, Denver, Colorado.
• Ronayne, M.J., D. Earley III, and T.N. Blandford. 2001. Application of gradational high hydraulic conductivity cells to simulate mine pit lakes using a numerical groundwater flow model. In Proceedings of the MODFLOW 2001 and Other Modeling Odysseys Conference, September 2001, Golden, Colorado.
• Earley, D. III, E.A. Parker, and K. Calhoun. 2001. GIS-facilitated, hydrogeochemical modeling for mine waste reclamations. Tailing and Mine Waste 2001. Balkema, Rotterdam, p. 273-282. Presented at the Tailing and Mine Waste Conference, January 2001, Fort Collins Colorado.
• Kay, J.T., M.H. Conklin, C.C. Fuller, and P.A. O'Day. 2001. Process of nickel and cobalt uptake by a manganese oxide forming sediment in Pinal Creek, Globe Mining District, Arizona. Environmental Science & Technology 35(24):4719-4725.
• Blandford, T.N., M.J. Ronayne, and D. Earley III. 2001. Simulation of lake formation at multiple mine pits in a block faulted porphyry copper deposit. Presented at MODFLOW 2001 and Other Modeling Odysseys, An International Ground Water Modeling Conference and Workshops. Sponsored by International Ground Water Modeling Center, Colorado School of Mines, September 11-14, 2001, Golden, Colorado.

Modeling

• Guan, J., J Molz, Q. Zhou, H. H. Liu, and C. Zheng. 2008. Behavior of the mass transfer coefficient during the MADE-2 experiment: New insights. Water Resources Research, vol. 44, W02423, doi:10.1029/2007WR006120.
• Kaiser, P., M. Einarson, D. Mackay, M. Nozawa-Inoue, S. Goyal, M. Annable, S. Rao, K. Hatfield, M. Goltz, J. Huang, M. Brooks, M. Velasco, and C. Justice. 2006. Comparison of mass flux measurement methods at Vandenberg Air Force Base, California. Groundwater Resources Association of California Symposium: High solution Site Characterization & Monitoring. September 2006
• Uddameri, V. and M. Kuchanur. 2006. Estimating aquifer recharge in Mission River Watershed, Texas - model development and calibration using genetic algorithms. Environmental Geology 51(6):897-910.
• Kuchanur, M. and V. Uddameri. 2006. A recurrence weighted approach for fuzzy time series forecasting. Fuzzy sets and systems. Under Review.
• Kuchanur, M. and V. Uddameri. 2006. Calibration non-uniqueness: An obstacle or opportunity for groundwater model selection. National Ground Water Summit, San Antonio, Texas.Kuchanur, M., V.Uddameri, et al. 2003. An Assessment of Groundwater Resources in Refugio County Texas. Refugio, Texas A&M University Kingsville: 63pp.
• Uddameri, V. and M. Kuchanur. 2006. A multi-county groundwater availability model for the Gulf Coast Aquifer in the Coastal Bend Region of south Texas. Kingsville, Texas, Texas A&M University Kingsville: 80 pp
• Cullen, S.J. 2005. The driving force to perchlorate leaching: Application of methods to date historic meteoric recharge travel time to groundwater. Invited speaker at the “Environmental Forensics: Focus on Perchlorate”, Workshop sponsored by the International Society of Environmental Forensics, La Fonda on the Plaza, Santa Fe, New Mexico, September 21- 22, 2005
• Cullen, S.J. 2005. Theory and application of vadose zone instrumentation. Invited speaker at the Santa Barbara Groundwater and Vadose Zone Instrumentation Workshop, Soilmoisture Equipment Corp., May 17, 2005, Goleta, California.
• Cullen, S.J. 2005. Commercial applications of laboratory and field groundwater and vadose zone instrumentation. Invited speaker at the The Santa Barbara Groundwater and Vadose Zone Instrumentation Workshop, Soilmoisture Equipment Corp., May 17, 2005, Goleta, California.
• Umstot, T., N.T. Sweetland, B. Casadevall, D.B. Stephens, M.J. Huggins, and D.E. Potts. 2006. Field data and modeling MTBE remediation by SVE: Case study in southern California. Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Assessment, and Remediation Conference. National Ground Water Association, Houston, Texas.
• Calhoun, K.C. 2004. Groundwater availability modeling, southern Ogallala Aquifer, eastern New Mexico and west Texas. The Map Legend - New Mexico Geographic Information Council Inc.
• Stephens, D.B. 2003. Impact of hydrogeologic variables on contaminant plume migration and forensic modeling. Presented at the International Society of Environmental Forensics: Using Science to Reconstruct Contamination Events, December 8-9, 2003, Taipei, Taiwan.
• Blandford, T.N. 2003. What is a groundwater flow model and how do you know if you have a good one? In Proceedings of New Mexico Water Law. Sponsored by CLE International, August 18-19, 2003, Santa Fe, New Mexico.
• Blazer, D.J., K.C. Calhoun and T.N. Blandford. 2003. Development of the southern Ogallala groundwater availability model using GIS. In Proceedings of MODFLOW and More, 2003 - Understanding through Modeling. Sponsored by International Ground Water Modeling Center, Colorado School of Mines, September 16-19, 2003, Golden, Colorado.
• Blandford, T.N., D.J. Blazer, and A.R. Dutton. 2003. Regional groundwater availability modeling of the southern Ogallala Aquifer of west Texas and eastern New Mexico. Presented at New Mexico Symposium on Hydrologic Modeling, sponsored by New Mexico Water Resources Research Institute, August 12, 2003, Socorro, New Mexico.
• Blandford, T.N., D.J. Blazer, A.R. Dutton and T. Naing. 2003. Regional groundwater availability modeling of the southern High Plains Aquifer of west Texas and eastern New Mexico. In Proceedings of MODFLOW and More, 2003 - Understanding through Modeling. Sponsored by International Ground Water Modeling Center, Colorado School of Mines, September 16-19, 2003, Golden, Colorado.
• Stephens, D.B. 2003. Application of groundwater contaminant transport modeling in environmental forensic investigations: Tucson Airport superfund site. Presented at the Workshop on Environmental Forensics: theory, applications and case studies, International Society of Environmental Forensics, May 19-20, 2003, Stresa, Italy.
• Blandford, T.N., D.J. Blazer, A.R. Dutton and R.M. Smith. 2003. Regional groundwater availability modeling of the southern Ogallala Aquifer of west Texas and eastern New Mexico. Presented at National Ground Water Association Southwest Focus Conference – Water Supply and Emerging Contaminants, February 20-21, 2003, Phoenix, Arizona.
• Phillips, Fred M., John P. Ayarbe, J. Bruce, J. Harrison and David Elmore. 2003. Dating rupture events on alluvial fault scarps using cosmogenic nuclides and scarp morphology. Earth and Planetary Science Letters 215: 203-218.
• Umstot, T. 2003. Comparison of analytical and numerical models for the advection-dispersion equation: Mass balance errors in analytical solutions from incorrect application of the retardation factor. In MODFLOW and More 2003 conference proceedings.
• Newcomer, R, N. and C.P. Wolf. 1999. The use of mine-development models to support mine closure and reclamation planning. Poster presentation at American Society for Surface Mining and Reclamation, Scottsdale, Arizona.
• Gray, R.N. 1997. Water balance studies in Los Alamos Canyon. Presentation for Los Alamos National Laboratory Environmental Restoration Program technical session.
• Earley, D. III, E.A. Parker, and K. Calhoun. 2001. GIS- facilitated, hydrogeochemical modeling for mine waste reclamations. Tailing and Mine Waste 2001. Balkema, Rotterdam, p. 273-282. Presented at the Tailing and Mine Waste Conference, Fort Collins Colorado, U.S.A., January 2001.
• Calhoun, K.C. and B.R. Ryan. 2001. Calculating aquifer depletion using GIS - groundwater availability modeling study in the southern Ogallala Aquifer. Poster Presentation at New Mexico Geographic Information Council 2001 Fall Meeting, Albuquerque, New Mexico, October 19, 2001.
• Stephens, D.B. 1996. Hydrogeology and contaminant transport. Presented at The Who, What, Where & How of Toxic Tort Litigation, The Arizona Bar Association Continuing Legal Education, November 22, 1996, Phoenix, Arizona.
• Stephens, D.B. 1997. Infiltration modeling roles in RBCA. Presented at the New Mexico Underground Storage Tank Conference, September 9-10, 1997, Ruidoso, New Mexico.
• Stephens, D.B. and S. Kowall. 2000. The DOE complex-wide science and technology roadmap: Characterization, modeling and simulation of subsurface contaminant fate and transport. Presented at the 12th Technical Information Exchange Workshop, November 14-16, 2000, Augusta, Georgia.
• Stephens, D.B., and T.N. Blandford. 2001. Hydrogeologic analysis, transport and modeling for environmental litigation: A case study. Presented at the Arizona Hydrological Society Fourteenth Annual Symposium, September 12-15, 2001, Tucson, Arizona.
• Shan, C. and D.B. Stephens. 1994. Recommendation for usage of SURFER to gridding model results. Ground Water 32(3).
• Blandford, T.N., D.J. Blazer, A.R. Dutton and R.C. Reedy. 2002. Regional groundwater flow modeling of the Southern High Plains aquifer - conceptual models applied and insights gained. Presented at Geological Society of America Annual Conference Special Session on Hydrogeology and Water Resources of the High Plains Aquifer: Issues for Public Policy Over the Next 50 years, October 27-30, 2002, Denver, Colorado.
• Stephens, D.B. and L.M. Coons. 1994. Landfill performance assessment at a semi-arid site: Modeling and validation. Ground Water Monitoring and Remediation IX(1):101-109.
• Stephens, D.B. and C. Shan. 1995. An analytical solution for vertical transport of volatile chemicals in the vadose zone. Journal of Contaminant Hydrology 18:259-277.
• Stephens, D.B. 2001. Scientific applications of volume, mass and toxicity for cost allocation modeling. Invited speaker at the University of Wisconsin-Madison, Environmental Litigation: Advanced Forensics and Legal Strategies, April 4-5, 2001, San Francisco, California.
• Ronayne, M.J., T.N. Blandford, D. Earley III, and R. Schmidt-Petersen. 1999. Simulation of mine pit lake recovery in a block-faulted porphyry copper deposit. Presented at the Annual Meeting of the Geological Society of America, October 25, 1999, Denver, Colorado.
• Ronayne, M.J., D. Earley III, and T.N. Blandford. 2001. Application of gradational high hydraulic conductivity cells to simulate mine pit lakes using a numerical groundwater flow model. In Proceedings of the MODFLOW 2001 and Other Modeling Odysseys Conference, September 2001, Golden, Colorado.
• Earley, D. III, E.A. Parker, and K. Calhoun. 2001. GIS-facilitated, hydrogeochemical modeling for mine waste reclamations. Tailing and Mine Waste 2001. Balkema, Rotterdam, p. 273-282. Presented at the Tailing and Mine Waste Conference, January 2001, Fort Collins Colorado.
• Hsu, K.-C., D. Jordan, T.N. Blandford, D.W. Reaber, and J.L. Wilson. 1998. Evaluation of local-scale contaminant migration within a heterogeneous alluvial basin in the southwest. Presentation at National Ground Water Association 1998 annual convention and exposition, Las Vegas, Nevada.
• Brusseau, M.L., Z. Zhang, N.T. Nelson, R.B. Cain, G.R.Tick, and M. Oostrom. 2002. Dissolution of nonuniformly distributed immiscible liquid: Intermediate-scale experiments and mathematical modeling. Environmental Science & Technology 36(5):1033-1041.
• Blandford, T.N., M.J. Ronayne, and D. Earley III. 2001. Simulation of lake formation at multiple mine pits in a block faulted porphyry copper deposit. Presented at MODFLOW 2001 and Other Modeling Odysseys, An International Ground Water Modeling Conference and Workshops. Sponsored by International Ground Water Modeling Center, Colorado School of Mines, September 11-14, 2001, Golden, Colorado.
• Stephens, D.B. and T. Neil Blandford. 2001. Hydrogeologic analysis, transport and modeling for environmental litigation: A case study. Presentation at the First International Congress on Petroleum Contaminated Soils, Sediments, and Water Analysis, Assessment and Remediation, August 14-17, 2001, London, United Kingdom.

Risk Assessment/Management

• Lorenz, J.C., J.L. Sterling, J.D. Schechter, C.L. Whigham, and J.L. Jensen. 2002. Low stress anisotropy and non-congruent natural fracture sets in the Spraberry Formation, Midland Basin, Texas. AAPG Bulletin, Vol. 86, No. 3, March 2002.
• Sahu, R., S. Cullen, and M. Jones. 2005. An update on remedial investigations of the BMI site common areas properties, Henderson, Nevada. Presented to the BMI and Vicinity - All Companies Meeting, May 24, 2005, Henderson, Nevada.
• Cullen, S.J., W. Allmon, and T. Battey. 2005. An evaluation of baseline recharge conditions at a perchlorate-impacted site in an arid environment. A technical poster presentation to the California Groundwater Resources Association meeting, “Artificial Recharge: Nexus of Quantity and Quality in California”, March 16-17, 2005, Sacramento, California.
• Sterling, J., P. Brady, J. Kelsey, N. Sweetland, and M. Wing. 2006. Nanotechnology: Implications for the Environment. Presentation at the Emerging Contaminants in Groundwater: A Continually Moving Target Conference, Groundwater Resources Association of California, June 7 and 8, 2006, Concord, California.
• Uddameri, V. and M. Kuchanur. 2006. Fuzzy rule-based expert system for risk-based corrective action analysis. Submitted to Journal of Soil and Sediment Contamination.
• Stephens, D.B. 2005. A perspective on science and research in the environmental consulting industry. Presented at the American Geophysical Union Fall Meeting, December 5-9, 2005, San Francisco, California.
• Stephens, D.B. 1999. Scientific applications of volume, mass and toxicity for allocating cleanup responsibility. Invited presentation at IBC’s Second Annual Executive Forum on Environmental Forensics, June 24-25, 1999, Washington, D.C.
• Stageman, J.C. and D.B. Stephens. 1993. The consultant's role in addressing environmental risks in real estate and lending. Presentation at Cambridge Institute Continuing Legal Education Seminar, Tackling Environmental Issues in New Mexico.

Site Assessment/Characterization

• Nelson, N.T., Q. Hu, and M.L. Brusseau. 2003. Characterizing the contribution of diffusive mass transfer to solute transport in sedimentary aquifer systems at laboratory and field scales. Journal of Hydrology 276(1 4):275-286.
• Nelson, N.T. 2002. Groundwater assessment under the Department of Interior Natural Resource Damage Regulations. Southwest Hydrology 1(4): 19.
• Wolf,C.P., F. Lorenzo, and B. Baum. 2003. Wetland evaluation and restoration along Rinconada Creek, Pueblo of Acoma, New Mexico. Southwest Hydrology, January 2003.
• Wolf, C.P., J. Forbes, B. Marley, and R. Morgan. 2001. Hydrogen sulfide impacts due to poor well completion, Hopi Reservation. Abstract and poster presentation at AWRA annual conference, Albuquerque, New Mexico.
• Standen, A.R. and D.R. Opdyke. 2004. Contamination migration, characteristics, and responses for the Edwards-Trinity Plateau Aquifer. Aquifers of the Edwards Plateau, Texas Water Development Board, Report 360, p. 211-234.
• Miller, M.E. 2006. Rainwater harvesting for enhanced groundwater recharge through capture of increased runoff from site development. In proceedings of the 2006 Conference on Increasing Freshwater Supplies, sponsored by Universities Council on Water Resources and National Institutes of Water Resources. July 18-20, 2006.
• Miller, M.E. 2005. Enhanced groundwater recharge through site development. In proceedings of the Groundwater Recharge Symposium, Arizona Hydrological Society, June 8-11, 2005.
• Gray, R.N. 2005. Application of pressure transducer data from nested piezometers to determine vertical seepage velocities within the Alluvial Aquifer in Los Alamos Canyon. Poster presented at the New Mexico Water Resources Research Institute 2005 New Mexico Technical Water Research Symposium, New Mexico Tech University, Socorro, New Mexico.
• Calhoun, K.C. 2003. Identification of geographic areas suitable for groundwater banking. Poster presentation at AWRA Annual Conference, San Diego, California. November 2-5, 2003.
• Kuchanur, M. 2006. Simulation-Optimization methodologies to estimate groundwater availability in the semi-arid region of south Texas. Doctoral Dissertation, 188 pp.
• Uddameri, V. and M. Kuchanur. 2006. Simulation-optimization approach to assess groundwater availability in Refugio County, Texas. Environmental Geology 51(6):921-929.
• Stephens, D.B. 2005. A perspective on science and research in the environmental consulting industry. Presented at the American Geophysical Union Fall Meeting, December 5-9, 2005, San Francisco, California.
• Davis, D.W. and N.T. Sweetland. 2004. Rethinking traditional approaches for groundwater remedial actions - Rancho Cordova case study. Presented at the Cl04 2004 - Perchlorate in California's Groundwater, Groundwater Resources Association of California, August 4, 2004, Glendale, California.
• Moore, S.J., M.E. Miller and J.M. Stomp, III. 2005. Enhanced aquifer recharge: Opportunities and quantification methods. Presented at the 2005 Joint Rocky Mountain Section American Water Works Association (AWWA)/Water Environment Association (WEA) Conference, September 11-14, 2005, Albuquerque, New Mexico.
• Blandford, T.N. 2005. Evaluation of return flow to groundwater in New Mexico. In Proceedings of New Mexico water law, sponsored by CLE International, August 2005, Santa Fe, New Mexico.
• Stephens, D.B. and S. Kowall. 2000. The DOE complex-wide science and technology roadmap: Characterization, modeling and simulation of subsurface contaminant fate and transport. Presented at the 12th Technical Information Exchange Workshop, November 14-16, 2000, Augusta, Georgia.
• Stephens, D.B. 2003. Late eighteenth century hydrogeology: A pre-Darcy perspective. Presented at the Geological Society of America Annual Conference, November 2-5, 2003, Seattle, Washington.
• Shan, C. and D.B. Stephens. 1995. Steady infiltration into a two-layered soil from a circular source. Water Resources Research, 31(8):1945-1952.
• Standen, A. 2005. The spatial distribution of radiological contaminants in the aquifers overlying the Llano Uplift, Central Texas. Presented at National Ground Water Association - Naturally Occuring Contaminants Conference, February 24-25, 2005, Charleston, South Carolina.
• Lorenz, J.C., J.L. Sterling, J.D. Schechter, C.L. Whigham, and J.L. Jensen. 2002. Low stress anisotropy and non-congruent natural fracture sets in the Spraberry Formation, Midland Basin, Texas. American Association of Petroleum Geologists (AAPG) Bulletin, Vol. 86, No. 3
• Hopson, K. and M. Jacobs. 2004. Case study of integrated approach to the cleanup of Ogallala groundwater impacted by oilfield brine, Haskell County, Kansas. Presented at Southeast Section Meeting of the American Association of Petroleum Geologists (AAPG), March 2004, El Paso, Texas.
• Ferris, J.R., C.D. Palmer, and R.W. Smith. 2002. A multiple tracer approach for predicting contaminant transport in a geochemically heterogeneous subsurface environment. In Proceedings of the International Groundwater Symposium.
• Ferris, J.R. and R.M. Allen-King. 2003. Single and co-solute sorption of organic contaminants in kerogen-containing sediments. Geological Society of America Abstracts with Programs 35(6):575.
• Calhoun, K.C. and B.R. Ryan. 2001. GIS for water chemistry analysis. Presented at New Mexico Geographic Information Council 2001 Fall Meeting, October 19, 2001.
• Calhoun, K.C. 2002. GIS for water chemistry analysis. Presented at New Mexico Institute of Mining and Technology (NMIMT) Seminar of Earth and Environmental Science, February 20, 2002, Socorro, New Mexico.
• Sweetland, N.T., J. Sterling, and J. Bowden. 2005. Innovative tools for internet accessible environmental databases. Presented at the EIMS–Environmental Information Management Systems Conference, Groundwater Resources Association of California, January 26, 2005, San Jose, California.
• Brusseau, M.L., K.M. Bronson, S. Ross, N.T. Nelson, and T.D. Carlson. 2003. Application of gas-phase partitioning tracer tests to characterize immiscible-liquid contamination in the vadose zone beneath a fuel depot. Vadose Zone Journal 2:148-153.
• Brusseau, M.L., N.T. Nelson, and M. Costanza-Robinson. 2003. Partitioning tracer tests for characterizing immiscible-fluid saturations and interfacial areas in the vadose zone. Vadose Zone Journal 2:138-147.
• Nelson, N.T., Q. Hu, and M.L. Brusseau. Characterizing the contribution of diffusive mass transfer to solute transport in sedimentary aquifer systems at laboratory and field scales. Journal of Hydrology 276(14):275-286.
• Nelson, N.T. 2002. Groundwater assessment under the Department of Interior Natural Resource Damage Regulations. As published in the November/ December 2002 issue of Southwest Hydrology, www.swhydro.com. Full article.
• Stephens, D.B., J. Minier, and M.E. Miller. 1996. Subsurface migration and transformation of PCE. Presentation at the New Mexico Conference on the Environment, March 12-14, Albuquerque, New Mexico.
• Stephens, D.B., J.R. Forbes, M.E. Miller, and J. Minier. 1998. PCE degradation near petroleum contaminated sites. In Wickramanayake, G.B., and R.E. Hinchee (eds.), Natural Attenuation: Chlorinated and Recalcitrant Compounds. Volume C1-3 of Proceedings First International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May 18-21, 1998. pp. 183-192. Battelle Press, Columbus, Ohio.
• Stageman, J.C. and D.B. Stephens. 1993. Phase I environmental site assessments. Presentation at the Biggest Environmental News of 1993 Seminar. Albuquerque, New Mexico. November 19, 1993.
• Stephens, D.B., P. Johnson, and J. Havlena. 1996. Estimation of infiltration and recharge for environmental site assessment. American Petroleum Institute publication number 4643.
• Stephens, D.B., K.C. Hsu, M.A. Prieksat, M.D. Ankeny, T.N. Blandford, T.L. Roth, J.A. Kelsey, and J.R. Whitworth. 1998. A comparison of estimated and calculated effective porosity. Hydrogeology Journal 6:156-165.
• Stephens, D.B. and E. Seay. 1998. Interpretations of mechanical integrity tests and groundwater monitoring data at a salt water disposal well: A case study. In Proceedings Groundwater Protection Council 1998 Annual Forum, Sacramento, California, September 19-23.
• Stageman, J.C. and D.B. Stephens. 1993. The consultant's role in addressing environmental risks in real estate and lending. Presentation at Cambridge Institute Continuing Legal Education Seminar, Tackling Environmental Issues in New Mexico.

Soil and Groundwater Remediation

• Blandford, T.N. and N.T. Sweetland. 2003. Rethinking traditional approaches to hydraulic capture in preparation for the next series of emerging chemicals of concern in groundwater. Poster presentation at the 1,4 Dioxane and Other Solvent Stabilizer Compounds in the Environment, Groundwater Resources Association of California, December 10, 2003, San Jose, California.
• Stephens, D.B. and N.T. Nelson. 2000. Observed natural attenuation of TCA in groundwater. Tenth Annual West Coast Conference on Contaminated Soils and Water, March 20-23, 2000, San Diego, CA.
• Blandford, N. and N.T. Sweetland. 2005. Is your remediation system a source of groundwater contamination? Southwest Hydrology 4(3): 10-11.
• Sandrin, S.K., M.L. Brusseau, J.J. Piatt, A.A. Bodour, W.P. Blanford and N.T. Nelson. 2004. Spatial variability of in situ microbial activity: Biotracer tests. Ground Water 42 (3): 374-383.
• Wolf, C.P. and G.P. Miller. 2003. Arsenic Geochemistry and Treatment. Presentation at the New Mexico Environmental Health Conference. Albuquerque, New Mexico. October 2003.
• Wolf, C.P., J. Forbes, B. Marley, and R. Morgan. 2001. Hydrogen sulfide impacts due to poor well completion, Hopi Reservation. Abstract and poster presentation at AWRA annual conference, Albuquerque, New Mexico.
• Wolf, C.P. 1998. Lead distribution and availability in contaminated soils at the abandoned Cuba Smelter Site, Socorro, New Mexico. Oral Presentation at the Abandoned Mine Lands Conference, October 1998, Albuquerque, New Mexico.
• Standen, A. R., and J.A. Kane. 2005. The spatial distribution of radiological contaminants in the aquifers overlying the Llano Uplift, central Texas. National Groundwater Association Meeting, Arsenic and Radioactive Contamination, Charleston, South Carolina, 12 p.
• Wolf, C.P., J. Forbes, B. Marley, and R. Morgan. 2001. Hydrogen sulfide impacts related to well completion, Hopi Reservation, Arizona. Poster presentation at AWRA’s Annual Water Resources Conference, November 2001.
• Stephens, D.B., J.R. Forbes, M.E. Miller, and J. Minier. 1998 PCE degradation near petroleum contaminated sites. In proceedings of First International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May 18-21, 1998. Battelle Press, Columbus, Ohio.
• Kay, J.T., M.H. Conklin, C.C. Fuller, and P.A. O’Day. 2001. Processes of nickel and cobalt uptake by a manganese oxide forming sediment in Pinal Creek, Globe Mining District, Arizona. Env. Sci. Tech., 35 (24), pages 4719-4725.
• Ferris, J.R. and R.M. Allen-King. 2003. Single and co-solute sorption of organic contaminants in kerogen-containing sediments. Geological Society of America Abstracts with Programs 35(6):575.
• Ferris, J.R., C.D. Palmer, and R.W. Smith. 2002. A multiple tracer approach for predicting contaminant transport in a geochemically heterogeneous subsurface environment. Proceedings of the International Groundwater Symposium 2002. Edited by Angelos N. Findikakis. IAHS.
• Hilton, J.A., R. Marley, T. Ryther, and J. Forbes. 1992. Pilot test of nitrate-enhanced bioremediation in a moderate-to-low permeability aquifer. NGWA Petroleum Hydrocarbons and Organic Chemicals in Ground Water. Houston, Texas, November 1992.
• Lehman, R.M., F.F. Roberto, S.F. Brink, D. Earley, III, S.P. O’Connell, D.F. Bruhn, R.D. Schmidt, M.E. Delwiche, and F.S. Colwell. (In press). Attached and unattached microbial communities in closely-paired groundwater and core samples from an acidic, crystalline rock aquifer. Applied and Environmental Microbiology
• Kelsey, J.A., J.T.Kay, M.D. Ankeny, and M.A. Plummer. 2006. Darcian flux estimations in evapotranspiration landfill covers. The Fourth International Conference on Unsaturated Soils, Paper No.12545. Carefree, Arizona. April 2-6, 2006.
• Kaiser, P., M. Nozawa-Inoue, I. Chakraborty, M. Einarson, K. Scow, and D. Mackay. 2007. Impact of ethanol on anaerobic transformation of MTBE to TBA. 17th Annual AEHS Meeting & West Coast Conference on Soils, Sediments, and Water. March 2007.
• Hopson, K. and M. Jacobs. 2005. Case study of integrated approach to the cleanup of Ogallala groundwater impacted by oilfield brine, Haskell County, Kansas. Presented at the 12th International Petroleum Environmental Conference, November 8-11, 2005, Houston, Texas.
• Stephens, D.B. 2005. A perspective on science and research in the environmental consulting industry. Presented at the American Geophysical Union Fall Meeting, December 5-9, 2005, San Francisco, California.
• Davis, D.W. and N.T. Sweetland. 2004. Rethinking traditional approaches for groundwater remedial actions - Rancho Cordova case study. Presented at the Cl04 2004 - Perchlorate in California's Groundwater, Groundwater Resources Association of California, August 4, 2004, Glendale, California.
• Stephens, D.B. 1995. Vadose zone processes, characterization and monitoring. Presented at the National Ground Water Association Outdoor Action Conference, May 2-3, 1995, Las Vegas, Nevada.
• Forbes, J.R. and D.B. Stephens. 1996. Natural biodegradation of subsurface hydrocarbons: Case studies from the southwest United States. Presented at Bioremediation Technology Transfer Conference, EPA Western Region Hazardous Subresearch Center and Albuquerque Technical Vocational Institute, February 16, 1996, Albuquerque, New Mexico.
• Stephens, D.B. 1996. Principles of vadose zone hydrology. Presented to Westinghouse Savannah River Company, March 27-28, 1996, Aiken, South Carolina.
• Stephens, D.B., J.A. Kelsey, M.A. Prieksat, M.G. Piepho, M.D. Ankeny, and C. Shan. 1996. DNAPL migration in a complex multi-aquifer system. Presented at HSRC/WERC Joint Conference on the Environment, May 21-23, 1996, Albuquerque, New Mexico.
• Stephens, D.B. 1997. Infiltration modeling roles in RBCA. Presented at the New Mexico Underground Storage Tank Conference, September 9-10, 1997, Ruidoso, New Mexico.
• Stephens, D.B. 1997. Principles of vadose zone hydrology. Presented to the New Mexico Environment Department Underground Storage Tank Bureau, October 15-16, 1997, Santa Fe, New Mexico.
• Stephens, D.B., J.A. Kelsey, M.A. Prieksat, M.G. Piepho, C. Shan, and M.D. Ankeny. 1998. DNAPL migration through a fractured perching layer. Presented at the Geological Society of America Annual Meeting, October 21, 1998, Salt Lake City, Utah.
• Stephens, D.B. 1998. Scientific applications of volume mass and toxicity for allocating responsibility for aquifer clean-up. Presented at the National Environmental Forensic Conference: Chlorinated Solvent and Petroleum Hydrocarbons, University of Wisconsin-Madison, Department of Engineering Professional Development, August 27-28, 1998, Tucson, Arizona.
• Stephens, D.B. 1998. MTBE fate and transport review. Presented at the 1998 New Mexico Underground Storage Tank Conference, November 17, 1998, Albuquerque, New Mexico.
• Stephens, D.B. 2000. MTBE—gasoline additive in the national spotlight. Presented at the Albuquerque Petroleum Association Meeting, February 28, 2000, Albuquerque, New Mexico.
• Stephens, D.B. 2002. Principles and case studies of allocation of responsibility for petroleum contaminated soil and groundwater. Presented at the Identification and Assessment of Historical Subsurface Contamination: An International Society of Environmental Forensics Workshop, July 1-2, 2002, Milan, Italy.
• Stephens, D.B. 2002. Principles and case studies of allocation of responsibility for petroleum contaminated soil and groundwater. Presented at Advanced Techniques, an International Society of Environmental Forensics Workshop, September 23-24, 2002, Santa Fe, New Mexico.
• Stephens, D.B. 2004. Contaminant age dating using hydrogeologic analysis. Presented at the Mealey’s Water Contamination Conference, January 26-27, 2004, Pasadena, California.
• T.N. Blandford and N.T. Sweetland. May/June 2005. Is your remediation system a source of groundwater contamination? Southwest Hydrology, 4(4): 10-11.
• Hopson, K. and M. Jacobs. 2004. Case study of integrated approach to the cleanup of Ogallala groundwater impacted by oilfield brine, Haskell County, Kansas. Presented at Southeast Section Meeting of the American Association of Petroleum Geologists (AAPG), March 2004, El Paso, Texas.
• Hopson, K. and M. Jacobs. 2003. Case study of integrated approach to the cleanup of Ogallala groundwater impacted by oilfield brine, Haskell County, Kansas. Presented at National Convention of American Association of Petroleum Geologists (AAPG), April 2003, Dallas, Texas.
• Stephens, D.B. and N.T. Nelson. 2000. Observed natural attenuation of TCA in groundwater. In Proceedings Second International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May 22-25, 2000. Battelle Press, Columbus, Ohio.
• Stephens, D.B., J.R. Forbes, M.E. Miller, and J. Minier. 1998. PCE degradation near petroleum contaminated sites. In Wickramanayake, G.B., and R.E. Hinchee (eds.), Natural Attenuation: Chlorinated and Recalcitrant Compounds. Volume C1-3 of Proceedings First International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California, May 18-21, 1998. pp. 183-192. Battelle Press, Columbus, Ohio.
• Stephens, D.B. 1997. Case studies in DNAPL delineation, technical infeasibility and remediation cost allocation. Invited keynote speaker at the International Conference on Remedial Technology and Management of Subsurface Contamination, December 1-3, Taipei, Taiwan.
• Stephens, D.B. 1999. Scientific applications of volume, mass and toxicity for allocating cleanup responsibility. Invited presentation at IBC’s Second Annual Executive Forum on Environmental Forensics, June 24-25, 1999, Washington, D.C.

Solid Waste/RCRA Facilities

• Pegram, L.P., M.D. Ankeny, J.A. Kelsey, and M.E. Miller. 1999. Landfill cover permeability measurements using automated air-entry permeameters. In proceedings of 1999 Landfill Symposium presented by the Solid Waste Association of North America, Denver, Colorado, June 28 30, 1999.
• Jordan, D.L., R.J. MacKinnon, and T.N. Blandford. 1996. Source term analysis for a RCRA mixed waste disposal facility. In Proceedings of the International Topical Meeting on Nuclear and Hazardous Waste Management Spectrum '96, Seattle, Washington, August 18-23, 1996.
• Stephens, D.B. and L.M. Coons. 1994. Landfill performance assessment at a semi-arid site: Modeling and validation. Ground Water Monitoring and Remediation IX(1):101-109.
• Pegram, L.P., M.D. Ankeny, J.A. Kelsey, and M.E. Miller. 1999. Landfill cover permeability measurements using automated air-entry permeameters. In proceedings of 1999 Landfill Symposium presented by the Solid Waste Association of North America, Denver, Colorado, June 28-30, 1999.
• Miller, M.E., M.D. Ankeny, and J.A. Kelsey. 2001. New method for landfill liner and cover permeability measurements using air-entry permeameters. In proceedings of Arizona Landfill and Solid Waste Management Seminar, June 7-8, 2001.
• Stormont, J.C., M.D. Ankeny, M.E. Burkhard, M.K. Tansey, and J.A. Kelsey. 1993. Assessment of an active dry barrier for a landfill cover system. In Sandia National Laboratories Report SAND94-0301, UC-721, February 1994.
• Ankeny, M.D., L.M. Coons, N. Majumdar, J. Kelsey, and M. Miller. 1997. Performance and cost considerations for landfill caps in semi-arid climates. In Proceedings of Landfill Capping in the Semi-Arid West: Problems, Perspectives, and Solutions. Environmental Science and Research Foundation, May 1997.

Water Resources Management/Development

• Moore, S.J. 2007. Streamflow, infiltration, and recharge in Arroyo Hondo, New Mexico. In Stonestrom, D.A., J. Constantz, T.P.A. Ferré, and S.A. Leake, eds., Ground-water recharge in the arid and semi-arid southwestern United States. U.S. Geological Survey Professional Paper 1703, p. 137-155. Full Chapter
• Stewart-Deaker, A.E., D.A. Stonestrom, and S.J. Moore. 2007. Streamflow, infiltration, and ground-water recharge at Abo Arroyo, New Mexico. In Stonestrom, D.A., J. Constantz, T.P.A. Ferré, and S.A. Leake, eds., Ground-water recharge in the arid and semi-arid southwestern United States. U.S. Geological Survey Professional Paper 1703, p. 83-105. Full Chapter
• Wahi, A.K., J. Hogan, B. Ekwurzel, M.N. Baillie, and C.J. Eastoe. 2008. Geochemical quantification of semiarid mountain recharge. Ground Water, vol. 46, no. 3, pp. 414-425.
• Moore, S.J., R.L. Bassett, B. Liu, C. Wolf, and D. Doremus. 2008. Geochemcial tracers to evaluate hydrogeologic controls on river salinization. Ground Water, vol. 46, no. 3, pp. 489-501.
• Marley, B., C. Wolf, N. Nutongla, and C. Honyumptewa, 2001. A plan for monitoring drought conditions on the Hopi Reservation, Northeast, Arizona. Arizona Hydrological Symposium, September 2001.
• Parker, E.A., D. Earley, III, R.D. Marley, T.J. Ward, M.D. Marcus, and K. Calhoun. 2001. Development of a biological criterion based TMDL for Red River, New Mexico. Geological Society of America, Vol.33, No. 5, April 2001
• Marley, Bob, Newcomer, Bob, and Morgan, Ron, Inter-aquifer leakage or inadequate well seals. Arizona Hydrological Symposium, September 1999
• Miller, M.E. 2005. Desalination/landfill bioreactor cogeneration water supply feasibility. In proceedings of the American Water Works Association 2005 Annual Conference and Exposition, June 12-16, 2005.
• Kear, J., 2007. Energy savings effects of artificial recharge and increased storage in groundwater basins. First Western Forum on Energy and Water Sustainability, March 22-23, 2007, Bren School of Environmental Science & Management, University of California, Santa Barbara. (Accepted, in preparation.)
• Gray, R.N. 2002. Drought management. Presentation for Jemez y Sangre Regional Water Planning Charette, Santa Fe, New Mexico.
• Hilton, J. and A. Ewing. 2005. Challenges of meeting water demands during drought. Presented at New Mexico Interstate Stream Commission Drought Summit, October 6, 2005.
• Lewis, A.C., J. Hilton, and R. Vocke. 2005. Water supply options in a New Mexico planning region. Journal of the American Water Resources Association, 41:3:635-643. June 2005.
• Hilton, J. and T.S. Hephner. 2003. A rural perspective on regional water planning from the Mora-San Miguel Water Planning Region. Presented at New Mexico Water Planning 2003, 48th Annual New Mexico Water Conference, Santa Ana Pueblo, November 5-6, 2003.
• Hilton, J. and T. Ward. 2001. Drought vulnerability and water planning in Colfax County, New Mexico. AWRA National Conference, Albuquerque, New Mexico, November 2001.
• Calhoun, K.C. 2000. GIS and water resource applications. Presentation at the 2000 Conference of the Intertribal GIS Council, Albuquerque, New Mexico, July 2000.
• Uddameri, V., M. Kuchanur, et al. 2006. Optimization-based approaches for groundwater management. Aquifers of the Gulf Coast of Texas, Austin, Texas, Texas Water Development Board.
• Kuchanur, M. and V. Uddameri. 2006. Achieving consensus yield: A goal-programming approach. Conference Proceedings of Texas Section ASCE Spring 2006 Meeting, Beaumont, Texas.
• Kuchanur, M. and V. Uddameri. 2006. A decision support system to develop sustainable groundwater management policies for a multi-county single aquifer system. Submitted to USGS, 27pp.
• Kear, J. 2007. Like oil and water: Proximity issues of supply wells. California-Nevada Section, American Water Works Association, Bringing Water to the Desert, Spring Conference April 17-20, 2007. Las Vegas, Nevada (Accepted, in preparation.)
• Stephens, D.B., J.A. Kelsey, J. Hines, J. Kay, and E. Pease. 2007. Elements of vadose zone hydrology. Invited short course at National Ground Water Association 2007 Ground Water Summit. April 29, 2007, Albuquerque, New Mexico
• J. Kay. Increasing water demands drive innovative water management New Mexico Business Journal, September 2006. Full article.
• Stephens, D.B. 2005. A perspective on science and research in the environmental consulting industry. Presented at the American Geophysical Union Fall Meeting, December 5-9, 2005, San Francisco, California.
• Miller, M.E. 2005. Desalination/landfill bioreactor cogeneration water supply feasibility. In proceedings of the American Water Works Association (AWWA) 2005 Annual Conference and Exposition, June 12-16, 2005, San Francisco, California.
• Moore, S.J., M.E. Miller and J.M. Stomp, III. 2005. Enhanced aquifer recharge: Opportunities and quantification methods. Presented at the 2005 Joint Rocky Mountain Section American Water Works Association (AWWA)/Water Environment Association (WEA) Conference, September 11-14, 2005, Albuquerque, New Mexico.
• Blandford, T.N. 2005. Evaluation of return flow to groundwater in New Mexico. In Proceedings of New Mexico water law, sponsored by CLE International, August 2005, Santa Fe, New Mexico.
• Stephens, D.B. 1995. Vadose zone processes, characterization and monitoring. Presented at the National Ground Water Association Outdoor Action Conference, May 2-3, 1995, Las Vegas, Nevada.
• Stephens, D.B. 1996. Principles of vadose zone hydrology. Presented to Westinghouse Savannah River Company, March 27-28, 1996, Aiken, South Carolina.
• Stephens, D.B., J.A. Kelsey, M.A. Prieksat, M.G. Piepho, M.D. Ankeny, and C. Shan. 1996. DNAPL migration in a complex multi-aquifer system. Presented at HSRC/WERC Joint Conference on the Environment, May 21-23, 1996, Albuquerque, New Mexico.
• Stephens, D.B. 1998. Scientific applications of volume mass and toxicity for allocating responsibility for aquifer clean-up. Presented at the National Environmental Forensic Conference: Chlorinated Solvent and Petroleum Hydrocarbons, University of Wisconsin-Madison, Department of Engineering Professional Development, August 27-28, 1998, Tucson, Arizona.
• Stephens, D.B., and W. Cox. 2001. The importance of vadose zone in stream-aquifer interaction: Field and model studies. Presented at the American Water Resources Association (AWRA) Annual Conference on Water Resources, Albuquerque, New Mexico.
• Stephens, D.B. 2003. Subsurface considerations of artificial recharge. Presented at Artificial Recharge in California-Technical and Policy Challenges, Ground Water Resources Association of California, April 30-May 1, 2003, San Jose, California.
• Stephens, D.B. 2003. Unexpected field observations and DOE’s vadose zone roadmap. Presented at the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America Annual Meetings, November 2-6, 2003, Denver, Colorado.
• Stephens, D.B. 2003. Late eighteenth century hydrogeology: A pre-Darcy perspective. Presented at the Geological Society of America Annual Conference, November 2-5, 2003, Seattle, Washington.
• Stephens, D.B. 1994. A perspective on diffuse natural recharge mechanisms in areas of low precipitation. Soil Science Society of America Journal 58(1):40-48.
• Shan, C. and D.B. Stephens. 1995. Steady infiltration into a two-layered soil from a circular source. Water Resources Research, 31(8):1945-1952.
• Bitner, M. 2005. Decision analysis and the evaluation of availability of additional water supplies from the Edwards Aquifer. Presented at National Ground Water Association (NGWA)2005 Ground Water Summit, April 17-20, 2005, San Antonio, Texas.
• Benumof, B.T., PhD, Esq. and J.L.N. Kear. April 29-May 1, 2005. Hydrogeologic and legal feasibility of remote extraction from a groundwater basin. Presented at 101st Annual Meeting-Geological Society of America (GSA), Cordilleran Section, San Jose, California.
• Stephens, D.B. 2005. Overview of artificial recharge projects: Planning and implementation challenges. Presented at Groundwater Resources of California (GRAC) Workshop on Artificial Recharge: Nexus of Water Quantity and Quality. March 16-17, Sacramento, California.
• Bitner, M. 2005. Artificial recharge and aquifer storage and recovery. Presented at CLE Law of the Rio Grande, January 27-28, 2005, Albuquerque, New Mexico.
• Hilton, J. and T. Ward. 2001. Drought vulnerability and water planning in Colfax County, New Mexico. Presented at American Water Resource Association (AWRA) National Conference, November 2001, Albuquerque, New Mexico.
• Lewis, A., J. Hilton, and B. Vocke. 2003. Jemez y Sangre Water Plan overview. Presented at the Espanola Basin Geologic Conference, February 2003.
• Lewis, A., J. Hilton, and B. Vocke. 2003. Jemez y Sangre Water Plan overview. In Geologic and Hydrogeologic Framework of the Espanola Basin – Proceedings of the 2nd Annual Espanola Basin Workshop, March 4-5, 2003, Santa Fe, New Mexico. U.S.G.S. OF Report 03-369.
• Calhoun, K.C. and B.R. Ryan. 2001. GIS for water chemistry analysis. Presented at New Mexico Geographic Information Council 2001 Fall Meeting, October 19, 2001.
• Calhoun, K.C. 2002. GIS for water chemistry analysis. Presented at New Mexico Institute of Mining and Technology (NMIMT) Seminar of Earth and Environmental Science, February 20, 2002, Socorro, New Mexico.
• Calhoun, K.C. 2003. GIS and water resource applications. Presented at 2003 New Mexico Institute of Mining and Technology (NMIMT) Seminar of Earth and Environmental Science, April 9, 2003, Socorro, New Mexico.
• Calhoun, K.C. 2002. Identification of geographic areas suitable for groundwater banking using GIS. Presented at 2002 ESRI Southwest Users Group Annual Conference, October 24, 2002, Taos, New Mexico.
• Calhoun, K.C. 2003. Identification of geographic areas suitable for groundwater banking using GIS. Presented at ESRI 2003 Users Conference, July 9, 2003, San Diego, California.
• Calhoun, K.C. 2004. Identification of geographic areas suitable for groundwater banking using GIS. Presented at American Water Resource Association 2004 Spring Specialty Conference, GIS and Water Resources III, May 19, 2004, Nashville, Tennessee.
• Blandford, T.N., D.J. Blazer, A.R. Dutton and R.C. Reedy. 2002. Regional groundwater flow modeling of the Southern High Plains aquifer - conceptual models applied and insights gained. Presented at Geological Society of America Annual Conference Special Session on Hydrogeology and Water Resources of the High Plains Aquifer: Issues for Public Policy Over the Next 50 years, October 27-30, 2002, Denver, Colorado.
• Stephens, D.B. and M.D. Ankeny. 2004. A missing link in the historical development of hydrogeology. Ground Water.Vol.42. No.2. P.304-309. Full article.
• Stephens, D.B. 1999. Physical considerations in artificial recharge. Invited presentation at the 22nd Biennial Ground Water Conference, Interconnected Water Supply in California, September 20-21, 1999, San Diego, California.
• Stephens, D.B. 1999. Basic theory of flow from surface impounds and dry wells used for artificial recharge. Presentation at the 9th Biennial Symposium on Artificial Recharge and Groundwater, June 10-12, 1999, Tempe, Arizona.
• Stephens, D.B. 2000. The role of the unsaturated zone in groundwater recharge. Invited speaker at the Innovations in Artificial Recharge: Augmenting Local Groundwater Supplies for the New Millennium, May 4-5, 2000, Ontario, Canada.
• Parker, E.A., D. Earley, III, R.D. Marley, T.J. Ward, M.D. Marcus, and K. Calhoun. 2001. Development of a biological criterion based TMDL for Red River, New Mexico. Presented at 53rd Annual Meeting, Rocky Mountain Section, Geological Society of America, May 1, 2001.
• Stephens, D.B. and W. Cox. 1998. The importance of vadose zone in stream-aquifer interaction: Field and model studies. In Proceedings Groundwater Protection Council 1998 Annual Forum, Sacramento, California, September 19-23.
• Hilton, J. and D. Cartron. 1998. Understanding your obligations under the Clean Water Act. Presented at the U.S. Environmental Laws & Regulations Compliance Course, June 1998, sponsored by Government Institutes.

Water/Wastewater Systems

• Hall, G. 1999. Impact of on-site wastewater disposal systems on groundwater quality in Sandia Heights, Albuquerque, New Mexico. MS Thesis, University of New Mexico.
• Miller, M.E. 2005. Desalination/landfill bioreactor cogeneration water supply feasibility. In proceedings of the American Water Works Association (AWWA) 2005 Annual Conference and Exposition, June 12-16, 2005, San Francisco, California.
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