PFAS and CVOC Remediation Paves the Way for Mixed-Use Tower

Case study highlights:

• Certificate of Completion Awarded through New York State’s Brownfield Cleanup Program
• Combined remedy approach using ISCO and colloidal activated carbon to successfully treat CVOC and PFAS contaminants
• Greater than 90% reductions in mass flux achieved at property boundary

This case study reviews a site where a combined remedy was implemented using PersulfOx® to reduce contaminant mass at the source and a PlumeStop® barrier to prevent residual contaminant migration beyond the site boundary. The successful remedial effort earned the site a Certificate of Completion through New York State’s Brownfield Cleanup Program, facilitating the new development in this commercially valuable area. A brownfield site in New York is the first of two high-rise, mixed-use buildings offering residential, parking and retail space. The project, administered through the NY State Brownfield Cleanup Program, was a former electroplating facility with numerous open vats of chemical solvents and acids that gradually leaked and migrated into the fractured bedrock subsurface beneath the site. SESI Consulting Engineers (SESI), a leading environmental engineering services company based in New Jersey, completed several phases of Remedial Investigation, revealing site soil and groundwater impacted by CVOCs, PHCs, metals (chromium and nickel), PFAS, and 1,4-dioxane.