The Commerce Street Plume is an active National Priorities List site under EPA ID 110071100071. Historically, industrial activities led to the release of hazardous substances into the local environment. The primary exposure pathways involve groundwater contamination and vapor intrusion, where gaseous chemicals migrate from the soil into residential foundations. These contaminants pose long-term health risks, including potential damage to the nervous system and increased cancer susceptibility. Regulatory efforts focus on monitoring the plume’s movement and mitigating indoor air risks for nearby properties. To protect your household, implement the following three defensive measures. First, install a high-quality mitigation system to prevent soil vapors from entering your living space. Second, utilize certified carbon-activated water filtration systems if your property relies on private wells, though municipal water is monitored. Third, conduct regular indoor air quality testing to detect volatile organic compounds. Monitoring updates from the EPA is essential as cleanup activities remain ongoing. With nine hazardous sites within a ten-mile radius, including the VT Air National Guard and Harbour Industries, the cumulative environmental burden in the 05403 area is high. Maintaining awareness of local land use restrictions ensures you do not inadvertently disturb contaminated subsoil or groundwater during home improvement projects.