EXPERTISE

GSI remediates contaminated soil and groundwater with cost-effective biological technologies; and minimizes air emissions and excavation costs by treating soil and groundwater in situ.

REPRESENTATIVE EXPERIENCE

Solvent Biodegradation: Developed patented in-situ biodegradation technology based on direct hydrogen addition for the remediation of chlorinated solvent plumes. Conducted treatability and pilot-scale tests at four Air Force Bases. Performed hydrogen biosparge treatability test at local dry cleaner sites.

Biodegradation Systems: Designed and implemented in-situ biodegradation systems at two remediation/research sites. Applied BIOPLUME II in-situ biodegradation model to develop conceptual designs for both projects.

Modeling: Analyzed design basis information and utilized the BIOPLUME modeling system to design a full scale in-situ bioremediation system for remediation of dissolved BTEX plume at former natural gas facility.

Low Permeability Soils: Installed extensive wellpoint system for soil flushing. Directed long-term field monitoring program to evaluate performance of in-situ soil rinsing/biotreatment for remediation of affected sand unit.