Application of a BioBarrier to a mixed MTBE/BTEX dissolved plume

A biological barrier was installed in a MTBE 1 BTEX plume at the Naval Base Ventura, Port Hueneme, California to demonstrate the effectiveness of four different barrier configurations on dissolved plume treatment. The barrier spans the 5 0 0 4 wide plume, and is configured to illustrate the treatment potential of both in situ air sparging (IAS) alone as well as two variations of the enhanced MTBE bioremediation (EMB) in situ process on MTBE and mixed MTBEJBTEX dissolved plumes. Contaminant monitoring after three months of operation show MTBE concentration decreases of at least an order of magnitude in the most contaminated zone. BTEX concentrations are reduced by an order of magnitude in the MC-100 seeded zone, while reductions in the SC-100 plot are slightly less after three months of treatment.