An ongoing manufacturing facility located within a major Italian city created a widespread tetrachloroethene (PCE) contaminant plume in the underlying aquifer. The highly aerobic aquifer has inhibited natural attenuation, with no daughter products detected even after many years.

Environmental company TAUW is in charge of this site and has implemented hydraulic containment within the factory grounds, as required by law. However, there remained a need to target the plume beyond the site boundary, for which they outlined an in situ solution in collaboration with Prof. Marco Petrangeli Papini from Università La Sapienza di Roma.

Case study highlights:

  • Safe and easy co-injection of PlumeStop and S-MicroZVI
  • 50m long in situ barrier was applied with minimal interference with the school activities
  • Significant and rapid decrease of PCE concentrations in all 3 monitoring wells immediately downgradient
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