Combined remedy treats chlorinated solvents to achieve closure with Florida DEP

Case study highlights

  • Former dry cleaning operations lead to CVOC contaminated groundwater
  • AECOM, a global environmental consulting firm, was engaged to develop a solution for this site
  • PlumeStop and HRC provide rapid and effective remediation

This case study reviews the site of a chlorinated solvent spill as part of former dry cleaner operations at a retail shopping center in St. Petersburg, Florida. AECOM®, a global environmental consulting firm, was engaged to develop a solution for the site. The application called for an in situ groundwater treatment of low-concentration chlorinated volatile organic compounds (CVOCs). AECOM enlisted REGENESIS® to design and implement an innovative sorption-enhanced reductive dechlorination (ERD) bioremediation approach for treating the CVOC contaminants. The CVOCs included the typical dry cleaner contaminant suite: tetrachloroethene (PCE), trichloroethene (TCE), cis-1,2-dichloroethene (cis-DCE), and vinyl chloride (VC). In October 2017, REGENESIS Remediation Services injected PlumeStop® Liquid Activated Carbon™ and Hydrogen Release Compound®, completing the sorption-ERD remedial application in a single day. The results of the effort led to the Florida Department of Environmental Protection, Southwest District issuing a Site Rehabilitation Completion Order, releasing the property owner from further obligation to conduct remediation at the project site (i.e., site regulatory closure).

PlumeStop and HRC applied at Florida retail mall to address CVOCs
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