EXPERTISE

Applies a wide variety of groundwater flow and transport models that match the complexity of the model to the complexity of the problem; create cost-effective groundwater modeling using simple analytical models to address key site questions; develops and maintains large databases of groundwater data for corporate clients.

REPRESENTATIVE EXPERIENCE

Software Development: Developed the BIOSCREEN and BIOCHLOR natural attenuation models for the U.S. Air Force. GSI has applied these simple, easy-to-use models at over 30 natural attenuation sites around the country. BIOSCREEN, designed for fuel sites, is the EPA's most frequently distributed model, with 6,000+ downloads from their modeling web page. BIOCHLOR, designed for chlorinated solvent sites, is the EPA's most frequently distributed model since it was released in Jan. 2000.

Groundwater Flow Modeling: Applied large, multi-layer MODFLOW groundwater flow model to simulate the regional groundwater supply system in the Houston area for City of Houston' s water supply plan.

Modeling Barrier System: Developed multi-level MODFLOW groundwater flow model to model hydraulics of groundwater extraction system at large Superfund site with slurry wall enclosure.

Fate & Transport: Applied MODFLOW and MT3D to simulate potential migration of constituents from former pharmaceutical facility, Belgium.

Litigation: Developed and applied detailed groundwater transport models of contaminated site to evaluate source of contamination for groundwater litigation cases.