Case study highlights

At a former manufacturing site in Fullerton, California, a trichloroethylene (TCE) plume in groundwater prevented the sale of the brownfield site despite past remediation efforts, including excavation and thermal treatment. A combined remedy changed that: the combination of a large-diameter auger (LDA) excavation and injection of 50,000 gallons of
S-MicroZVI® has resulted in:

  •  98.5% average reduction in TCE concentrations, facilitating the property’s sale and redevelopment

  •  Through 4.5 years of monitoring, TCE remains at 99.7%, reduced in the treatment zone, confirming the remediation’s long-term effectiveness.


ZVI application

This case study reviews a former manufacturing site in Fullerton, CA, where a trichloroethylene (TCE) plume contaminated the groundwater and prevented sale of the brownfield site. REGENESIS designed an injection plan using micronscale Zero Valent Iron (ZVI) due to its proven ability to effectively reduce contaminant levels within a subsurface environment. In order to complete the remediation and move forward with the sale, Hargis + Associates worked with REGENESIS to develop an in situ chemical reduction (ISCR) design to address the plume. Regulatory limits on pounds per square inch (psi) were enforced for all injections. REGENESIS, Hargis + Associates, and Gregg Drilling worked closely with the regulatory agency to ensure that the remediation and injection of the ZVI would be completed at a low pressure.