Dr. LeClaireJoseph P. LeClaire, Ph.D.

Principal Water Resources Scientist

Costa Mesa, California

Email

(657) 218-4708 Ext. 225

Dr. LeClaire has over 32 years of professional experience in water resources and environmental engineering. He has demonstrated success in managing large, multi-disciplinary projects and in working with stakeholder groups with disparate and often conflicting objectives. Dr. LeClaire’s substantial experience spans numerous water resources, groundwater basin management, and environmental studies and projects. His technical expertise is in the area of groundwater quality and sustainability, equilibrium chemistry, and the mobility of trace metals and organics in groundwater.

He recently presented an invited paper entitled: “Groundwater Sustainability, Salinity, and Nitrate: The Central Valley” at the Association of Ground Water Agencies – American Ground Water Trust Annual Conference (AGWA-AGWT). He was the technical lead on critical components of the nitrogen /Total Dissolved Solids  study in the Santa Ana River Watershed, which was the first functionally-equivalent comprehensive Salt and Nutrient Management Plan in California. Dr. LeClaire also played a key role in the development and implementation of the Optimum Basin Management Program for the Chino Groundwater Basin.

Clients that Dr. LeClaire has worked with include Southern California Salinity Coalition (SCSC), National Water Research Institute (NWRI), Santa Ana Watershed Project Authority (SAWPA), Eastern Municipal Water District, Orange County Public Works, Los Angeles World Airports, San Joaquin Valley Drainage Authority, City of Thousand Oaks, City of Los Angeles, Metropolitan Water District of Southern California Water Replenishment District, City of San Bernardino Municipal water Department, Chino Basin Watermaster, Inland Empire Utilities Agency, Yucaipa Valley Water District, California Urban Water Agencies, Monterey County Water Resources Agency, and the University of California.

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  • Education

    Ph.D., Soil Science, University of California (Riverside)

    B.A., Chemistry (specialization in Earth Science), University of California (San Diego)

  • Specializations

    Water quality and sustainability
    Salinity management
    Groundwater basin management

  • Affiliations

    Groundwater Resources Association of California

    Sigma Xi – The Scientific Research Society of North America

Select Publications and Presentations

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.

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.

LeClaire, J. P. 2017. Groundwater Sustainability, Salinity, and Nitrate: The Central Valley. Presented at the Association of Ground Water Agencies – American Ground Water Trust Annual Conference. Ontario, CA. February 15, 2017.

LeClaire, J.P. 2005. “Lysimeters Assess Regulatory Compliance with Recycled Water Recharge.” Water & Wastewater International, 20(8), 15-16.

Olzbilgin, M.M., J.L. Goodell, J.P. LeClaire, and M.C. Kavanaugh. 1992. “The Use of Existing Water Supply Wells to Evaluate the Hydrogeologic and Transport Characteristics of Alluvial Aquifers.” In R.B. Gammage and B.A. Breven (Eds.), Hazardous Waste Site Investigations: Toward Better Decisions. Boca Raton: CRC Press.

Amin, H., M.M. Olzbilgin, J/O. LeClaire, and M.C. Kavanaugh. 1991. “Groundwater Remediation: Risks and Alternatives.” 62nd Annual Conference. Water Environmental and Technology, 3, 74-78.

LeClaire, J.P. (1985). “Sorption of Copper and Cadmium onto Soils: Influence of Organic Matter.” (Doctoral dissertation, University of California at Riverside, 1985).

Sposito, G., C.S. LeVesque, N. Senesi and J.P. LeClaire. 1984. “Methodologies to Predict the Mobility and Availability of hazardous metals in Sludge-Amended Soils.” California Water Resources Center, university of California, Davis, Contribution No. 189.

LeClaire, J.P., A.C. Chang, C.S. LeVesque, and G. Sposito. 1984. “Trace metal Chemistry in Arid-Zone Field Soils Amended with Sewage Sludge: IV. Correlations between Zinc uptake and Extracted Soil Zinc Fractions.” Soil Science Society of America Journal, 48, 509-513.

LeClaire, J/O., A.C. Chang, G. Sposito and C.S. LeVesque. 1983. “Trace Metal Chemistry in Arid-Zone Field Soils Amended with Sewage Sludge: III. Effect of Time on the Extraction of Trace Metals.” Soil Science Society of America Journal, 47, 898-902.

LeClaire, J.P., and K.R. Kelts. 1982. “Calcium Carbonate and Organic Carbon Stratigraphy of Late Quaternary Laminated and Homogeneous Diatom Oozes from the Guaymas Slope, HPC Site 480, gulf of California.” In J. Blakeslee, L.W. Platt, and L.N. Stout (Eds.), Initial Reports of the Deep Sea Drilling Project, Volume LXIV. Washington DC: U.S. Government Printing Office.

LeClaire, J. P. 2017. Groundwater Sustainability, Salinity, and Nitrate: The Central Valley. Presented at the Association of Ground Water Agencies – American Ground Water Trust Annual Conference. Ontario, CA. February 15, 2017.

LeClaire, J.P., T. F. Quasebarth, R.L. Reynolds, R.D. Meyerhoff, and D. J. Schroeder. 2014. Strategic Salt Accumulation Land and Transport Study (SSALTS). Presented at the Third International Salinity Forum. Riverside Convention Center.

LeClaire, J.P., and E.W.H. Chiang. 2012. “Web-Enabled and Map-Based Water Resources Data Management and CASGEM Compliance.” ACWA Conference: “A Strong Foundation for Rebuilding California. May 10, 2012. Monterey, California.

Chiang, E.W.H., and J.P. LeClaire. 2012. “Web-Enabled and Map-Based Water Resources Data Management.” AWRA Spring Specialty Conference: A Strong Foundation for Rebuilding California. March 26-28, 2012. New Orleans, Louisiana.

LeClaire, J.P., and E.W.H. Chiang. 2011. “Web-Enabled and Map-Based Water Resources Data Management and CASGEM Compliance.” GRA Conference: California’s Water Future Goes Underground. October 6, 2011. Sacramento, California.

LeClaire, J.P. 2011. “Chino Basin Strategies to Enhance Water Supply and Ensure Source Control.” California-Nevada Section AWWA Conference. March 29-31, 2011. Long Beach, California.

Sturchio N.C., A.D. Beloso Jr., L.J. Heraty, J. LeClaire, T. Rolfe, and K.R. Manning. 2008. “Isotopic Evidence for Agricultural Perchlorate in Groundwater of the Western Chino Basin, California.” In: Sixth International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, California. 18–22 May 2008.

LeClaire, J.P., N.C. Sturchio, A.D. Beloso, Jr., L.J. Heraty, K.R. Manning, and P.J. Corsinita. 2007. “Use of Stable Isotopes as a Forensic Tool to Determine Sources of Perchlorate in Groundwater in the Chino Basin, California.” American Water Works Association. Vail, Colorado. 25-27 June 2007.

Sturchio, N.C., J.P. LeClaire, A.D. Beloso, Jr., L.J. Heraty, K.R. Manning, and P.J. Corsinita. 2007. “Use of Stable Isotopes as a Forensic Tool to Determine Sources of Perchlorate in Groundwater in the Chino Basin, California.” Groundwater Resources Association of California. Concord, California. 29 March 2007.

Wildermuth, M.J., J.P. LeClaire, A.E. Malone, R. Atwater, and J.A. Schlange. 2006. “Working Within the California Regulatory Process to Change Water Quality Objectives to Promote the Large-Scale Use of Recycled Water.”

LeClaire, J.P., A. Diba, G. Chan, and K. Nobriga. 1998. “Relational Database Access Across the Internet/Intranet for Water Resources.” Information Management and Technology Conference, American Water Works Association. Reno, Nevada. 5-8 April 1998.

Yuan, W.B., J.P. LeClaire, A. Diba, and M. Zidar. 1997. “Mapping Ground-water Vulnerability through the Loose Coupling of GLEAMS and GIS.” 89th Annual Meeting American Society of Agronomy/Crop Science Society of America/Soil Science Society of America. Anaheim, California. 27 October 1997.

LeClaire, J.P., A. Diba, and J. Oravitz. 1997. “GIS-Based Pipeline Alternative Alignment Analysis Using PIPE plan.” ESRI User’s Conference. San Diego, California. June 1997.

LeClaire, J. P., Diba, A., and Oravitz, J. 1997. World-Wide Web Based RDBMS Access. Orange County Chapter of URISA. Brea, California. February 1997.

LeClaire, J.P., A. Diba, and J. Oravitz. 1997. “The San Francisco/San Joaquin Bay-Delta Database: Data Management and Retrieval Using GIS and Web Interfaces.” Third Annual California GIS Conference, Innovative Applications of State-of-the-Art Technology Section, Biltmore Hotel, Los Angeles, California. February 1997.

Yuan, W., J.P. LeClaire, A. Diba, M. Inada, and M. Zidar. 1996. “Mapping Groundwater Vulnerability to Nitrate and Pesticide Contamination in the Salinas Valley, Monterey, California.” ASCE North American Water and Environment Conference. Anaheim, California. June 1996.

Amin, H., M.M. Olzbilgin, J.P. LeClaire, and M.C. Kavanaugh. 1989. “Alternatives and Risks for Remediation of Groundwater Contaminated with Volatile Organics at a Major Superfund Site.” 62nd Annual Conference of the Water Pollution Control Federation. San Francisco, California. October 1989.

Wildermuth, M.J., and J.P. LeClaire. (1988). “Predicting Nitrate Degradation of Groundwater Caused by Agricultural Land Use Practices. FOCUS Conference on Southwestern Ground Water Issues.” National Well Water Association. Albuquerque, New Mexico. March 1988.

LeClaire, J.P., and G. Sposito. 1984. “Sorption of Copper and Cadmium onto Soils: The Influence of Organic Matter.” Annual Meetings of the American Society of Agronomy. Las Vegas, Nevada. November 1984.

LeClaire, J.P., and G. Sposito. 1983. “Adsorption Characteristics of Cu(II) on Five Arid-Zone Soils at Low Equilibrium Solution Concentrations.” West Coast Water Chemistry Workshop Conference. La Jolla, California. June 1983.

LeClaire, J.P., G. Sposito, C.S. LeVesque, and A.C. Chang. 1982. “Solid Phase Fractionation of Ni, Cu, Zn, Cd, and Pb in two Arid Zone Field Soils Amended with Sewage Sludge.” Annual Meetings of the American Society of Agronomy. Anaheim, California. December 1982.