• Site managers were concerned that cis-DCE was accumulating at a chlorinated solvent site.
  • CENSUS qPCR quantification of Dehalococcoides and functional genes was performed to evaluate the potential for complete reductive dechlorination to ethene and to assess enhanced bioremediation strategies.
  • Based on CENSUS qPCR results, bioaugmentation was not necessary, saving money, and biostimulation by electron donor injection was selected as the remedy.
  • After electron donor injection, substantial increases in Dehalococcoides and functional gene concentrations demonstrated the effectiveness of biostimulation as a treatment strategy.
Evaluating Biostimulation to Overcome DCE Stall