Saquib Najmus, Ph.D., P.E.
Dr. Najmus is a recognized expert in hydrologic modeling and water resources planning. He is a contributing author to the American Water Works Association (AWWA) Water Resources Planning Manual (2001). He is the co-author of several flow and water quality models, including the Integrated Groundwater and Surface water Model (IGSM), which is widely used in California. Dr. Najmus also has extensive experience in model and data integration, hydraulic analysis, flood control studies, decision support systems, software design, and statistical analysis.
Dr. Najmus received his Ph.D. in civil engineering from the University of California, Davis, with an emphasis in water resources engineering and a minor in statistics and mathematics.
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Ali Taghavi, Ph.D., P.E.
Dr. Taghavi offers expertise in integrated water management, conjunctive use planning, surface water and groundwater modeling, contaminant transport, and systems optimization. He has published more than 20 technical papers and co-authored numerous simulation and optimization models, including IGSM. Dr. Taghavi has managed several large water management projects and has provided expert witness services. He has worked in various capacities with policy makers and technical managers in a multiple stakeholder environment.
Dr. Taghavi received his Ph.D. in civil engineering from the University of California, Davis, with an emphasis in water resources engineering and a minor in agricultural economics and statistics.
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John Petrovsky
Mr. Petrovsky is a landscape architect and environmental planner with 25 years of consulting experience. He has directed over 70 assignments for federal, state, and local government, private landowners, and industry. His project experience includes reservoir and river management, groundwater management, utility infrastructure, mining, and regional planning. Mr. Petrovsky is an expert in developing creative solutions to natural resource management and land use planning challenges. He has extensive experience in public involvement programs and in leading multi-disciplinary teams.
Mr. Petrovsky has a Masters degree in Landscape Architecture from the California State Polytechnic University, Pomona and a B.A. in Psychology from University of California, Los Angeles.
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Paul M.
Castelin, P.G.
Mr. Castelin is a hydrogeologist with over 30 years service in both government and consulting sectors. He has performed groundwater studies, aquifer testing, well construction, and development of a statewide groundwater quality monitoring network in Idaho. He has played a key role in collaborative efforts between state and federal agencies in the areas of managed recharge, water quality monitoring, aquifer development, database development, and modeling of river/aquifer interactions. Mr. Castelin is an expert in coordinating stakeholder groups with common water resource utilization and conservation goals to achieve project success.
Mr. Castelin has a Bachelor of Science degree in Geology from the University of Idaho. He is currently pursuing a Master’s degree in Educational Technology from Boise State University.
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