EOS Case Study

EOS Permeable Reactive Barriers Treat Trichloroethene Plume


A large manufacturer in Indiana needed to remediate a long plume of TCE-contaminated groundwater, threatening a river almost 2 miles down-gradient of the source.


Cut off TCE migration and reduce plume size in an economical, efficient and sustainable manner.


Installation of 6 permeable reactive barriers (PRBs) along the plume transect using EOS emulsified oil substrates.


To date, the PRBs have effectively cut off the downgradient migration of TCE and continue to reduce overall plume size.  EOS substrate injection resulted in: 
•  Rapid establishment of reducing conditions within each PRB
•  Rapid transformation of TCE
•  Formation of TCE daughter products and ethene down-gradient of PRBs
•  A growing community of dechlorinating bacteria