Ex-Situ Soil Blending – Yonkers, NY

Overview

  • Eden performed a “rush” ex-situ soil blending treatment for a redevelopment in the City center. Contaminants included petroleum aromatics, PAHs and LNAPL from multiple abandoned USTs.
  • Treatment was performed in an open excavation (LNAPL and impacted soils and GW).
  • Shallow water table with tidal influence from the Hudson River.
  • Fenton’s/Modified Fenton’s oxidation used for LNAPL removal and soil matrix desorption followed by un-activated SPS.
  • Treated 1,420 tons using 1-2% oxidant by mass, areas were “spray” applied and blended with an excavator.
  • Recent finding indicated treatment goals were met and/or exceeded!! • Cost was <$150,0000.