Surfactant Enhanced Alkaline Activated Klozur SP Remediation of Coal Tar

Surfactant-enhanced ISCO was successfully implemented at a site in Queens, NY contaminated with coal tar repurposed from a nearby MGP in a roofing manufacturing process. This process destroyed >90% of total targeted contaminants achieving the groundwater clean up objective.

Contaminants Treated

Coal Tar, BTEX, Napthalene

Type of Site

Former Manufacturing Site


Queens, New York




The S-ISCO treatment successfully contacted, desorbed and destroyed NAPL contaminants and reduced soil vapor contamination in a controlled process without impacting the adjacent water body (the East River) or the local community. The site received a certificate of completion and construction of a community library has been planned at the site.