More Than 99% PFOS Reduction – SourceStop reduced PFOS concentrations in soil leachate by more than 99%, with post-treatment results below 1 ng/L, significantly limiting PFAS mobility from the source area.

Avoided PFOS Disposal – The remedy reduced PFAS leaching potential without generating waste for off-site disposal, helping lower project complexity and long-term management costs.

Validated Through Testing and Field Results – Bench-scale treatability testing and field sampling both confirmed substantial reductions in PFOS leachability, demonstrating reliable performance from design through implementation.

Ideal for Active Sites Near Sensitive Receptors – SourceStop’s low-dust liquid and solid formulations enabled efficient soil blending while minimizing wind-borne product loss, making it well suited for industrial facilities located near residential areas.

Enhanced Long-Term PFAS Retention – By adding activated carbon surfaces throughout the treatment zone, SourceStop increased soil retention capacity and immobilized PFAS, helping prevent future contaminant migration.

A former flooring manufacturing facility in New Jersey needed a practical solution to reduce PFAS migration from impacted soils while avoiding costly excavation and disposal. Using SourceStop® colloidal activated carbon technology, the project team successfully stabilized PFOS in source-area soils, achieving more than a 99% reduction in PFOS leachate concentrations. These field results confirmed the performance observed during treatability testing and support the use of SourceStop as a practical source-area stabilization approach for PFAS-impacted soils at industrial sites.