Modeling of Groundwater Contamination by Light Nonaqueous Phase Liquids (LNAPLs)

Jang, Wonyong (Alan)

Modeling of Groundwater Contamination by Light Nonaqueous Phase Liquids (LNAPLs)

Wednesday, May 7, 2014: 11:15 a.m.

Platte River Room (Westin Denver Downtown)

Wonyong (Alan) Jang , Itasca Denver, Inc., Lakewood, CO

Mustafa M. Aral , School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA

The groundwater contamination by dissolved components of light nonaqueous phase liquids (LNAPLs) was detected in the Hadnot Point Industrial Area at U.S. Marine Corps Base Camp Lejeune in North Carolina. Field investigation found lens of free-phase LNAPLs on the top of groundwater. The thickness of the free phases highly varied in the study area. The dissolution and migration of their components polluted the groundwater, which was drawn for public supply. Using numerical tools, including TechFlowMP and TechNAPLVol, we investigated the distribution of free-phase LNAPLs, their dissolution, and groundwater contamination in the area. This paper will present the transport of dissolved LNAPL component and vertical variation of contaminant migration under influence of pumping in the study area. In addition, it will show the temporal profiles of contaminant concentrations in pumping wells near the LNAPL sources.

Wonyong (Alan) Jang, Itasca Denver, Inc., Lakewood, CO

Alan Jang received his Ph.D. degree at Georgia Institute of Technology in Atlanta, Georgia. His expertise is in modeling of groundwater and multiphase flow and contaminant transport in the subsurface system. He has carried out projects regarding groundwater resources and contamination, nonaqueous phase liquids in the subsurface, mine dewatering and environmental impacts, and contaminated site remediation. Jang has developed the three-dimensional multiphase flow model, called TechFlowMP, and other numerical codes. Currently, he works for Itasca Denver Inc. in Lakewood, Colorado.

Mustafa M. Aral, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA

Mustafa Aral is Director of the Multimedia Environmental Simulations Laboratory School of Civil and Environmental Engineering at the Georgia Institute of Technology.