Uncertainty Analysis for the Southern TCE Plume in the C-Area Groundwater Operable Unit

This report documents an uncertainty analysis on a local groundwater flow and transport model for the C-Area Reactor Groundwater Operable Unit. The work is a continuation of the recently completed regional groundwater flow model for C Area (Bills et al. 2000) and the local flow and transport model for the southern C-Area plumes (Fogle and Brewer, 2001). The local flow and transport model is a representation of groundwater flow and contaminant migration through the Upper Three Runs aquifer, southwest to Fourmile Branch and Castor Creek. The uncertainty analysis is focused on total TCE flux to the streams, as well as maximum concentration discharge locations