The toxic properties and bioaccumulation tendencies of numerous organic chemicals pose significant threats to environmental and human health. Even within the Arctic, there is evidence of banned persistent organic pollutants (POPs) and further pollutants classified as chemicals of emerging Arctic concern (CEACs). Their presence in permafrost-affected soils is due both to their partitioning from the atmosphere to liquid or solid phases, promoted by the cold temperatures prevailing in the Arctic, and direct input from the few local sources in these sparsely populated areas. The Mackenzie Delta Region, for instance, experienced extensive oil and gas exploration activities from the 1960s to the early 2000s. During this time, drill cuttings and drill fluids were disposed of in large sumps typically excavated adjacent to the well-head, often under inappropriate construction and abandonment practices. As the polar regions are now warming twice the global rate, contaminant distribution pathways to and within the Arctic are changing. Permafrost thaw - one of the most significant processes upon warming - may have profound effects on the inherent pollutant sink, including the 233 documented drilling mud sumps in the Mackenzie Delta region. More than half of the constructed sumps, encapsulating significant amounts of drilling fluids, now show major signs of structural failure. With sump cap subsidence and collapse, there is growing concern that organic pollutants such as oil and drilling fluid additives may be released to the environment. In this study, we analyze soils on and downstream of four selected drilling mud sumps along the Inuvik-Tuktoyaktuk Highway. Through detailed non-target screenings of extractable organic compounds, we will investigate the potential presence of various organic contaminants and assess their concentration levels above and below the permafrost table. This research aims to provide a first assessment of potential contaminant dispersion and degradation in permafrost-affected soils related to the legacy gas exploration in the region.