The Blue Swan Cleaners site, EPA ID 110012647243, is an active National Priorities List location undergoing remediation. Although listed with unspecified hazardous substances, dry cleaning sites typically involve volatile organic compounds that migrate through soil into groundwater. Exposure pathways include the ingestion of contaminated well water and vapor intrusion, where chemical gases enter buildings through foundation cracks. These toxins are linked to increased cancer risks, respiratory issues, and nervous system damage. There are 66 hazardous sites within a ten-mile radius of Harrington Park, indicating a high cumulative regional risk. To defend against these threats, residents should first install a high-quality carbon filtration system for all household water to remove chemical traces. Second, homeowners should perform sub-slab depressurization or install vapor barriers to block toxic gases from entering the living space. Third, avoid using private well water for drinking or irrigation until certified laboratory testing confirms it meets safety standards. Monitoring the EPA’s periodic Five-Year Reviews for Blue Swan Cleaners provides updates on cleanup progress and lingering plume boundaries. Understanding these risks is essential for maintaining a safe residence in this high-impact zone.