Jeffrey H. Hwang, Ph.D.

Dr. Hwang has over 25 years of experience in water resources engineering including: hydrology; surface and groundwater modeling; statistical analysis; numerical computer modeling; GIS applications; water resources planning and management; and software development. Dr. Hwang received a B.S. in Mineral and Petroleum Engineering from Seoul National University in Korea, a M.S. in Water Resources Engineering from the University of California at Los Angeles in 1980, and a Ph.D. in Water Resources Engineering from the University of California at Los Angeles in 1983.

Dr. Hwang has developed numerous procedures and computer models to solve water resources problems, including Runoff/Router model to simulate waste allocation (WLAM); Root zone simulation model to estimate evapotranspiration; applied water; and deep percolation, which is used to estimate recharge to groundwater basin; recharge basin performance evaluation procedure and a computer program, which was used for Chino Basin Master Recharge study; mountain watershed simulation model; Uncertainty Analysis program in stream water quality simulation (SNSIME); Goodness-of-fit test program for ten most common probability distribution models (GOF); and others. Dr. Hwang has extensive experience with EPA's surface water quality simulation model, QUAL2E, and USGS's groundwater simulation model, MODFLOW.

Dr. Hwang also has extensive background in wastewater treatment process modeling and has developed mathematical models to estimate oxygen transfer rate from steady and non-steady operation. Dr. Hwang has experience with various models in public domain, including: SWMM; BASIN; SWAT; GWV; GMS; HEC-RAS; Plume Models; IGSM; MODPATH; and others. He is a member of the American Water Resources Association, National Ground Water Association, and Groundwater Resources Association of California.