• Construction-integrated PFAS control: SourceStop was blended into non-frost susceptible structural fill to form a permeable adsorptive barrier installed concurrently with earthwork, avoiding schedule delays or separate treatment infrastructure.
• Passive, waste-free protection: The barrier captured PFAS in displaced pore water during peat surcharging, preventing off-site migration with no pumping, no ongoing maintenance, and no PFAS waste streams.
• Regulatory-driven risk mitigation: The solution addressed PFAS concentrations exceeding Alaska Department of Environmental Conservation cleanup levels, supporting compliant development while protecting downgradient groundwater and surface water receptors.

During expansion of a climate-controlled cargo and cold storage facility at an Alaska airport, historical PFAS contamination posed a significant risk to groundwater and nearby environmental receptors. Construction activities required surcharging peat soils, creating the potential for PFAS-impacted water to migrate laterally during earthwork. To proactively manage this risk while keeping the project on schedule, the project team integrated a SourceStop® permeable sorptive barrier directly into the site development—providing passive, in situ control of PFAS migration without pumps, power, or waste generation.