The strength of our staff lies in the combination of extensive practical experience and strong academic backgrounds. Our professionals have published their findings in peer-reviewed journals and have been selected by government agencies to develop guidance for national dissemination. A selection of recent publications and presentations includes:
Hill, J. 2022. Recharge and Reuse as Part of a Diversified Water Portfolio. Presented at the 36th Annual Tri-State Seminar. Las Vegas, Nevada, August 9-12, 2022.
Schnaar, G. 2022. Emerging Concern of Per- and Polyfluoroalkyl Substances (PFAS) Soil and Groundwater Contamination. Atlantic City, New Jersey. May 11, 2022.
Hill, J. 2022. Planning, Design, and Construction of the Hopi Regional Water System. Presented at the Rocky Mountain Section of the American Water Works Association. Albuquerque, New Mexico, April 7-8, 2022.
Schnaar, G. 2022. Planned Geologic Sequestration of CO2 at the San Joaquin Renewables Project and Class VI Application Process. Lakewood, California. March 29-30, 2022.
Perry, R. 2022. Carrizo Outcrop Monitor Well Installation. Presented at Texas Ground Water Association Annual Convention, Frisco, Texas. January 28, 2022.
O’Connell, P. Python as a tool for communicating sustainable management criteria in Groundwater Sustainability Plan (GSP) development poster presentation. Groundwater Resources Association of California Future of Water conference. Virtual, February 23 and 24, 2021.
Tolley, G. 2021. The Connection Between Groundwater and Surface-Water: Quantifying the Impact of Intermittent Stream Flow and Water-Year Type on Streamflow Depletion in a Northern California Stream. American Ground Water Association – American Ground Water Trust Virtual California Groundwater Conference. February 9 to 10, 2021.
Schnaar, G. 2020. Per- and polyfluoroalkyl substances Forensics: How to Identify Sources of Contamination. Law Seminars International Conference, Virtual. October 29 -30, 2020.
Ewing, A., C. Wolf, and K. Yuhas. 2020. Managed Aquifer Recharge and Water Supply Resilience in Albuquerque. 17th Biennial Symposium on Managed Aquifer Recharge, Virtual, October 5, 2020.
Ewing, A., C. Wolf, and K. Yuhas. 2020. Large Scale Recharge: Managed Aquifer Recharge and Water Supply Resilience in Albuquerque, New Mexico (pp. 1, 8, and 17). Fountainhead, a Texas Ground Water Association periodical, 3rd Quarter, 2020.
Ewing, A., C. Wolf, and K. Yuhas. 2020. Managed Aquifer Recharge and Water Supply Resilience in Albuquerque, New Mexico. Present virtually at the 2020 Annual WateReuse Symposium. September 16, 2020.
Schwartz, K., D. Tolley, T. Morgan. 2020. Subsidence & SGMA – Characterizing the Ups and Downs Outside of the Central Valley at The Third Annual Western Groundwater Congress, Groundwater Resource Association of California, Virtual, September 2020.
Tolley, D., L. Foglia, T. Harter. 2020. Streamflow Depletion Analysis for an Intermittent Stream, Scott Valley, CA. The Third Annual Western Groundwater Congress, Groundwater Resource Association of California, Virtual, September 14 – 17, 2020.
Morgan, T. 2020. So the Climate is Changing…Now What? The Third Annual Western Groundwater Congress, Groundwater Resource Association of California, Virtual, September 14 – 17, 2020.
Donnelly, Andrew. GAMs, the Next Generation panel discussion. Texas Alliance of Groundwater Districts Virtual Texas Groundwater Summit, Virtual, September 1 – 3, 2020.
Morgan, T. 2020. Sustainable Groundwater Management Act (SGMA) – What are the Prospects for Managing Irrigation Pumping to Achieve Long-Term Sustainability of California’s Groundwater? Texas Alliance of Groundwater Districts Virtual Texas Groundwater Summit, Virtual, September 1 – 3, 2020.
Blandford, N., M. Jacobs, A. Donnelly. 2020 Groundwater Availability in the Permian Basin. Water Committee of Permian Basin Petroleum Association. Virtual, July 2020.
Wolf, Chris, Ewing, A., Yuhas, K. 2020. Securing Water Supply for Albuquerque, New Mexico Using Managed Aquifer Recharge (MAR) National Ground Water Association Water, Energy, and Policy in a Changing Climate conference. Albuquerque, New Mexico. February 24 – 25, 2020.
Morgan, Tony. 2020. Surface Water Availability and Impacts to Groundwater panel discussion at the National Ground Water Association Water, Energy, and Policy in a Changing Climate conference, Albuquerque, New Mexico. February 24 – 25, 2020.
Schnaar, G. 2019. Per- and polyfluoroalkyl substances Forensics: How to Identify Sources of Contamination. Law Seminars International Conference, San Diego, California. December 9, 2019.
Jayne, K., G. Peterson. 2019. Stormwater Design for a 1,000 Year Project Life. Presented at Colorado Solid Waste Association Annual Meeting. Colorado Springs, Colorado, October 10, 2019.
Blandford, N. 2019. Trends and Key Challenges in Groundwater Management in New Mexico. Invited presentation at the GRA Western Groundwater Congress. Sacramento, California, September 17, 2019.
J. Hill, K. Flis, J. Chiasson. 2019. Advanced Water Treatment for Aquifer Recharge. WateReuse Symposium. San Diego, California, September 10, 2019.
Ewing, A. 2019. The Role of Managed Aquifer Recharge Projects in Meeting Long-Term Sustainability. Western Planner & American Planning Association (APA) New Mexico. Santa Fe, New Mexico. September 8 to 11, 2019.
Blandford, N., F. Botros. 2019. Invited participant/speaker for Brackish Groundwater Panel at the Texas Alliance of Groundwater Districts, Texas Groundwater Summit. San Antonio, Texas, August 22, 2019.
Johannesen, C. 2019. U.S. Environmental Protection Agency Region 6 Stormwater Conference. Bacterial Source Tracking Panel discussion. Denton, Texas, July 29 – August 1, 2019.
Blandford, N., K. McQueen. 2019. Overview of Groundwater Rights Acquisition and Permitting in Texas and New Mexico panel discussion. American Association of Professional Landmen’s Santa Fe Land Institute. Santa Fe, New Mexico. July 23, 2019.
Ewing, A. 2019. Banking Water for the Future. New Mexico Water Workshop. Albuquerque, New Mexico, April 18 and 19, 2019.
Schnaar, G. 2019. Per- and Polyfluoroalkyl Substances: Wide-Ranging Sources and Impacts to Water Supplies. Presented at American Ground Water Trust Information-Exchange Workshop. Mount Laurel, New Jersey, March 6, 2019.
Schnaar, G. 2019. Per- and Polyfluoroalkyl Substances: Wide-Ranging Sources and Impacts to Water Supplies. Presented at American Ground Water Trust Information-Exchange Workshop. Pittsburgh, Pennsylvania, March 4, 2019.
Schnaar, G. 2019. Per- and Polyfluoroalkyl Substances: Wide-Ranging Sources and Impacts to California Water Supplies. Presented at Association of Ground Water Agencies – American Ground Water Trust Annual Conference. Ontario, California, February 11-12, 2019.
Stephens, D.B. and T. Umstot. 2018. Development and evaluation of the Maxey-Eakin recharge method. Hydrogeology Journal. https://doi.org/10.1007/s10040-018-1884-1.
Stephens, D.B. 2019. Perspectives from a Water Resources and Environmental Consultant. The American Water Resources Association 20(6):16-18.
Calhoun, K., S.J. Romero, C.P. Wolf, and C. Johannesen. 2018. Digital Poster: The Benefits of Applying a GIS to a Sand and Gravel Assessment. Presented at National Tribal Geographic Information Support Center’s 9th Annual National Tribal GIS Conference. Albuquerque, New Mexico, November 5-9, 2018.
Blandford, T. N. 2018. Texas v. New Mexico – An Overview of Groundwater Management and Water Rights Acquisition and Permitting. Presented at Society of Petroleum Engineers Environmental Study Group Meeting. Midland, Texas, November 1, 2018.
Morgan, T. 2018. The Unknown Unknowns – Groundwater Sustainability Plans and Information Discovery. Presented at Groundwater Resources Association of California First Annual Western Groundwater Congress. Sacramento, California, September 25-27, 2018.
Kirby, P. B. 2018. A Summary of Recent Efforts by Fayette County and Pecan Valley Groundwater Conservation Districts, As They Work to Improve Their Understanding of Water Quality and Groundwater Conditions in Their Districts. Presented at Texas Groundwater Summit. San Antonio, Texas, August 28-30, 2018.
Moore, S. J. 2018. An Overview of Managed Aquifer Recharge , a Conjunctive Management Tool That Includes Aquifer Storage and Recovery and a Variety of Other Techniques to Increase Aquifer Recharge. Presented at Texas Groundwater Summit. San Antonio, Texas, August 28-30, 2018.
Johannesen, C. 2018. The Implementation of Microbial Source Tracking Program by the City of Albuquerque. Presented at 2018 U.S. Environmental Protection Agency Region 6 Stormwater Conference. Albuquerque, New Mexico, August 19-23, 2018.
Kutz, J. 2018. The City of Albuquerque Illicit Discharge Detection and Elimination Program. Presented at 2018 U.S. Environmental Protection Agency Region 6 Stormwater Conference. Albuquerque, New Mexico, August 19-23, 2018.
Botros, F. E. 2018. Emerging Convergence between the Law and Hydrology of Water Quality and Quantity. Presented at Law Seminars International Seminar. Santa Fe, New Mexico, August 8, 2018.
Blandford, T. N. 2018. Overview of Tribal Groundwater Issues in the Little Colorado River Adjudication in Arizona. Presented at American Ground Water Trust States’ Rights and the Control of Groundwater Conference. Albuquerque, New Mexico, July 17-18, 2018.
Schnaar, G. 2018. Use of Analytical Contaminant Fate and Transport Modeling in Forensic Source Evaluation. Presented at International Network of Environmental forensics Annual Conference. University of Utah, Salt Lake City, Utah, June 25-27, 2018.
Stephens, D.B. 2018. Analysis of the Hydraulic Fracturing and Water Quality Controversy in Pavillion, Wyoming: Applying the Lessons Learned to Oil & Gas Development in Texas. Presented at American Ground Water Trust Annual Texas Aquifer Conference. Austin, Texas, June 6-7, 2018.
Gray, R. 2018. Rehabilitation of Rio Rancho Well No. 3 – Challenges, Hazards and Successes. Presented at 4th Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 26 and 27, 2018.
Johannesen, C. 2018. City of Albuquerque Microbial Source Tracking Program. Presented at 4th Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 26 and 27, 2018.
Hill, J. 2018. Reuse and Recharge Project Examples in the Southwest U.S. Presented at 4th Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 26 and 27, 2018.
Hill, L. 2018. Reuse and Recharge Site Selection, Permitting, and Design. Presented at 4th Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 26 and 27, 2018.
LeClaire, J. 2018. Southern California Salinity Coalition Study to Evaluate Long-Term Trends and Variations in the Average Total Dissolved Solids Concentration in Wastewater and Recycled Water. Presented at WateReuse Inland Empire Chapter meeting. California, May 8, 2018.
Moore, S., Hill, J., Johannesen, C. 2018. Collaboration for the Albuquerque Municipal Separate Storm Sewer System (MS4) Watershed Based Permit. Presented at Texas Water 2018. San Antonio, Texas, April 24-26, 2018.
Ewing, A. 2018. Integrating Surface Water and Groundwater through Managed Aquifer Recharge. Presented at Sixteenth Biennial Symposium on Managed Aquifer Recharge. San Diego, California, March 6-7, 2018.
Ewing, A. 2018. Integrating Surface Water and Groundwater through Managed Aquifer Recharge. Presented at Association of Ground Water Agencies – American Ground Water Trust Annual Conference. Ontario, California, February 12 – 13, 2018.
LeClaire, J. 2018 Evaluation of Long-Term Trends and Variations in the Average Total Dissolved Solids Concentrations in Wastewater and Recycled Water. Presented at the Multi-State Salinity Coalition 2018 Annual Salinity Summit. Las Vegas, Nevada, on February 8-9, 2018.
Ewing, A. Recharge and Alternative Water Supply Projects: A Regulatory and Historic Perspective. Presented at the New Mexico Infrastructure Finance Conference. Santa Fe, New Mexico, October 25 – 27, 2017.
Ewing, A., Hill, J., and Wolf, C. 2017. Collaboration and the MS4 Watershed Based Permit. Presented at the 33rd Annual Tri-State Seminar. Las Vegas, Nevada, September 26-28, 2017.
Hill, J. 2017. Collaboration and the MS4 Watershed Based Permit. Presented at the 33rd Annual Tri-State Seminar. Las Vegas, Nevada, September 26-28, 2017.
Stephens, D.B., 2017. Early Innovations in Engineering and Hydrology: Practical Applications of Land Drainage. Presented to the Society of American Military Engineers. Albuquerque, New Mexico, August 9, 2017.
Cartron, D. 2017. Regional Water Plan Updates in New Mexico. Presented at the American Ground Water Trust New Mexico Aquifer Conference. July 12, 2017, Albuquerque, New Mexico.
Kelsey, J. 2018. Dispelling Myths about Recharge Via Spreading Basins, Arroyos Etc. Presented at American Ground Water Trust Annual Texas Groundwater Conference. Austin, Texas, May 3 – 4, 2017.
Kelsey, J. 2017. Dispelling Myths about Recharge Via Spreading Basins, Arroyos Etc. presented at American Ground Water Trust 2017 Annual Texas Groundwater Conference. Austin, Texas, May 4, 2017.
Ewing, A. 2017. Recharge in the Southwest. Presented at Rocky Mountain Section of American Water Works Association and Rocky Mountain Water Environment Association 3rd Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 7, 2017.
Ewing, A. 2017. Recharge in the Southwest. Presented at Rocky Mountain Section of American Water Works Association and Rocky Mountain Water Environment Association 3rd Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 7, 2017.
Hill, J., 2017. Asset Management and Life Cycle Analysis. Presented at Rocky Mountain Section of American Water Works Association and Rocky Mountain Water Environment Association 3rd Annual New Mexico Water Workshop. Albuquerque, New Mexico, April 7, 2017.
Cullen, Stephen J. 2017. SGMA: Challenges of Sustainably Managing Groundwater, Session Organizer and Moderator, Association of Ground Water Agencies and American Ground Water Trust Annual Conference, Radisson Hotel, Ontario, California, February 15-16, 2017.
Schnaar, G., J. Dodge and S.J. Cullen, 2016 (invited paper). Comprehensive groundwater balance development to characterize selenium loading to surface water channels in Orange County, California. Journal of Contemporary Research and Education, Issue 159 p.5-23.
Schnaar, G., J. Dodge and S.J. Cullen, 2016 (invited paper). Comprehensive groundwater balance development to characterize selenium loading to surface water channels in Orange County, California. Journal of Contemporary Research and Education, Issue 159 p.5-23.
Cullen, S.J., G. Schnaar, and M. Cruikshank. 2016. Groundwater Planning and Estimating Safe Yield in California under the Sustainable Groundwater Management Act. Hydrology and the Law, Law Seminars International, Santa Monica, California, September 16, 2016.
Cullen, S.J., G. Schnaar, and M. Cruikshank. 2016. Groundwater Planning and Estimating Safe Yield in California under the Sustainable Groundwater Management Act. Hydrology and the Law, Law Seminars International, Santa Monica, California, September 16, 2016.
Stephens, D.B. 2016. An Overview of the Statutory Structure of the Sustainable Groundwater Management Act. Presented at the Science and Law of Water in California Conference in Santa Monica, California, September 17, 2015.
Stephens, D.B. 2016. An Overview of the Statutory Structure of the Sustainable Groundwater Management Act. Presented at the Science and Law of Water in California Conference in Santa Monica, September 17, 2015.
Bronson, K., 2016. New Small System MS4 Stormwater Permit. Presentation to 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28-29, 2016.
Bronson, K., 2016. New Small System MS4 Stormwater Permit. Presentation to 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28-29, 2016.
Stephens, D.B. 2015. Managed aquifer recharge. Presentation at the 2015 NGWA Groundwater Expo and Annual Meeting. Las Vegas, Nevada. December 15, 2015.
Stephens, D.B. 2016. Challenging Times Ahead in Hydrology. Keynote speaker at the NGWA Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23-24, 2016.
Hill, J., 2016 Source Water Protection Planning. Presented at the 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28 – 29, 2016.
Blandford, N., 2016. Overview of the University Lands Groundwater Resource Evaluation Project. Presentation to Environmental Study Group of the Society of Petroleum Engineers. Midland, Texas. April 28, 2016.
Blandford, N., 2016. Overview of the University Lands Groundwater Resource Evaluation Project. Presentation to Environmental Study Group of the Society of Petroleum Engineers. Midland, Texas. April 28, 2016.
Bronson, K. 2016. New Small System MS4 Stormwater Permit. Presented at the 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28 – 29, 2016.
Bronson, K. 2016. New Small System MS4 Stormwater Permit. Presented at the 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28 – 29, 2016.
Umstot, T. 2016. Estimating Groundwater Recharge and Sustainability of Community Water Supplies in New Mexico. Presented at the 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28 – 29, 2016.
Hill, J., 2016 Source Water Protection Planning. Presented at the 2016 2nd Annual New Mexico Water Workshop. Albuquerque, New Mexico. April 28 – 29, 2016.
Stephens, D.B. 2016. Challenging Times Ahead in Hydrology. Keynote speaker at the NGWA Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23-24, 2016.
Longmire, P. and Wolf, C. 2016. Environmental Geochemistry of Metals. Co-instructor of short course sponsored by National Groundwater Association. Dallas, Texas. March 21-23, 2016.
Longmire, P. and Wolf, C. 2016. Environmental Geochemistry of Metals. Co-instructor of short course sponsored by National Groundwater Association. Dallas, Texas. March 21-23, 2016.
Wolf, C.P., Marley, R., Ewing, A. 2016. Applying Geochemistry to Managed Aquifer Recharge Projects. Presentation at the National Groundwater Association Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23 and 24, 2016.
Wolf, C.P., Marley, R., Ewing, A. 2016. Applying Geochemistry to Managed Aquifer Recharge Projects. Presentation at the National Groundwater Association Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23 and 24, 2016.
Wolf, C.P., Marley, R., Ewing, A. 2016. Applying Geochemistry to Managed Aquifer Recharge Projects. Presentation at the National Groundwater Association Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23 and 24, 2016.
Ewing, A. 2016. Albuquerque Bernalillo County Water Utility Authority Aquifer Storage and Recovery. Presentation at the National Groundwater Association Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23 and 24, 2016.
Ewing, A. 2016. Albuquerque Bernalillo County Water Utility Authority Aquifer Storage and Recovery. Presentation at the National Groundwater Association Conference on Hydrology and Water Quality in the Southwest. Albuquerque, New Mexico. February 23 and 24, 2016.
Stephens, D.B. 2015. Managed aquifer recharge. Presentation at the 2015 NGWA Groundwater Expo and Annual Meeting. Las Vegas, Nevada. December 15, 2015.
Hill, J., 2015. Asset Management: Tools and Resources. Lower Rio Grande Public Water Works Authority: A Water Audit Case Study. New Mexico Infrastructure Finance Conference. Albuquerque, New Mexico, October 28-30, 2015.
Dodge, J.J., G. Schnaar, and S.J. Cullen, 2015. Selenium Loading from Groundwater to Newport Bay, Orange County, California. Presentation at the Geological Society of America 2015 Annual Meeting, Baltimore, Maryland. November 1, 2015.
Dodge, J.J., G. Schnaar, and S.J. Cullen, 2015. Selenium Loading from Groundwater to Newport Bay, Orange County, California. Presentation at the Geological Society of America 2015 Annual Meeting, Baltimore, Maryland. November 1, 2015.
Marley, R., 2015. Aquifer Storage and Recovery. New Mexico Infrastructure Finance Conference. Albuquerque, New Mexico, October 28-30, 2015.
Marley, R., 2015. Aquifer Storage and Recovery. New Mexico Infrastructure Finance Conference. Albuquerque, New Mexico, October 28-30, 2015.
Hill, J., 2015. Asset Management: Tools and Resources. Lower Rio Grande Public Water Works Authority: A Water Audit Case Study. New Mexico Infrastructure Finance Conference. Albuquerque, New Mexico, October 28-30, 2015.
Hill, J., 2015. Asset Management: Tools and Resources. Lower Rio Grande Public Water Works Authority: A Water Audit Case Study. New Mexico Infrastructure Finance Conference. Albuquerque, New Mexico, October 28-30, 2015.
Bronson, K., 2015. Watershed Fundamentals. New Mexico Infrastructure Finance Conference. Albuquerque, New Mexico, October 28-30, 2015.
Schnaar, G., Blandford, N., 2015. Not Under My Back Yard: The Looming Battle Over Underground Injection. Presentation at the American Bar Association Fall Conference, Chicago, Illinois. October 28-31, 2015.
Schnaar, G., Blandford, N., 2015. Not Under My Back Yard: The Looming Battle Over Underground Injection. Presentation at the American Bar Association Fall Conference, Chicago, Illinois. October 28-31, 2015.
Schnaar, G., Blandford, N., 2015. Not Under My Back Yard: The Looming Battle Over Underground Injection. Presentation at the American Bar Association Fall Conference, Chicago, Illinois. October 28-31, 2015.
Schnaar, G., Blandford, N., 2015. Not Under My Back Yard: The Looming Battle Over Underground Injection. Presentation at the American Bar Association Fall Conference, Chicago, Illinois. October 28-31, 2015.
Wolf, C., Marley, R., and Ewing, E. Applying Geochemistry to Predict Water Quality at Managed Aquifer Recharge Sites. New Mexico Water Conference, Taos, New Mexico, October 7-9, 2015.
Daniel B. Stephens & Associates, Inc.
6020 Academy Road NE Suite 100
Albuquerque, New Mexico 87109
Phone 505-822-9400
Fax 505-822-8877