PlumeStop & S-MicroZVI Barrier Reduces Chlorinated VOCs by 95% in 1 Month

Case study highlights:

• Treatment approach consisted of in situ chemical reduction with PlumeStop in a permeable reactive barrier (PRB)
• Approximately 32,000 lbs. of the colloidal PlumeStop and S-MicroZVI amendments were co-injected to form the PRB
• The colloidal PlumeStop and S-MicroZVI amendments rapidly reduced CVOC concentrations to below or near the detection levels

At an ongoing residential development in Southwest Sweden, low CVOC levels in the groundwater required a remedial solution to protect the newly constructed buildings against vapour intrusion. RGS Nordic (now: Sortera) asked REGENESIS for an in situ remediation solution. PlumeStop® Liquid Activated Carbon and S-MicroZVI® were injected during the ongoing construction of the residential building complex. Despite spatial limitations to complete the work, the injection was successfully carried out, quickly reducing the concentrations of chlorinated volatile organic compounds (CVOCs) by 95% and removing the potential risk for vapour intrusion of CVOCs into the residential complex.