migrate in an aquifer?
A. Yes. Major et al. (2002) and Cox et al. (2002) have indicated that the Dehalococcoides strains in KB-1® can migrate in aquifers. The rate of migration is relatively slower than groundwater flow velocities. The extent of migration and activity of migrating cells is likely dependent on the distribution of electron donor and chloroethenes. We are conducting additional studies to better understand the factors affecting migration of KB-1®.