Site Remediation

Demolition

Decontamination/
Decommissioning


Facility Infrastructure

Superfund Site - North-East
   
  • Cd, Cr and Semi Volatile Organic contaminants source removal
  • Waste characterization sampling and analysis
  • Impacted soil excavation to depths in excess of 21 feet bgs (GW @ 16’18’)
  • Over 150 subsurface features, 57,000 tons of Non-Hazardous soils, and 22,000 tons of RCRA hazardous soils removed and shipped off-site
  • 70 truck loads of material removed per day
 

This project has included (4) separate phases of work, which took two over three years to complete for Remedial Elements I, II at this high profile Superfund Site in Long Island (EPA Region 2) NY.  The work performed addressed the source material at the primary Superfund Site, as well as the associated off-site liabilities.  VIASANT has completed the third and fourth phases of Remedial Element I/II and is currently performing additional source removal work scheduled for completion in Spring/Summer of 2010.

The scope of services for Remedial Elements I/II through the four projects have been large-scale source removals and subsurface feature removals targeted by the final ROD.  The work entailed complete source removal (soil and subsurface features) in order to achieve specified cleanup criteria for metals (Cd and Cr), and Semi Volatile Organic contaminants.  Specific remedial activities included extensive waste characterization sampling and analysis, impacted soil excavation to depths in excess of 21 feet bgs (GW @ 16-18’), water management, on-site management and off-site disposal of excavated soils as both hazardous and non-hazardous waste streams, backfill and site restoration.  Over 150 subsurface features, 57,000 tons of Non-Hazardous Soils, and 22,000 tons of RCRA hazardous soils were removed and shipped off-site as part of Remedial Elements I/II.  All work performed on Remedial Elements I/II were done within a heavily populated residential area. The project logistics required as many as 70 truck loads of material to be removed per day. The primary access point to the site was Motor Avenue one of the towns primary thoroughfares requiring significant logistics planning and traffic controls.   Entrances and exits were continually staffed with flag crews to direct in-bound and out-bound traffic and each days activities were staggered with school schedule to reduce interruption of bussing activities.