The A. H. Nilson Machine Company site remains on the National Priorities List with an active status. Although listed as containing unspecified hazardous substances, typical industrial pollutants at machine shops include chlorinated solvents and heavy metals. Exposure pathways primarily involve the migration of contaminants through subsurface soil into local groundwater plumes. Potential health risks include neurological damage, kidney dysfunction, and increased cancer risk from long-term ingestion or inhalation of vapor intrusion. The EPA site ID 110009334666 tracks ongoing assessment and remediation efforts to contain these threats. To minimize risk, residents should take three specific defensive measures. First, install a high-quality carbon filtration system for all drinking water to capture volatile organic compounds. Second, conduct professional radon and vapor intrusion testing in basements to ensure soil gases are not entering the home. Third, maintain a thick layer of clean mulch or sod over bare soil to prevent the tracking of legacy industrial dust into living areas. With thirty-three hazardous sites within ten miles, including Raymark Industries and Milford Rivet & Machine, cumulative exposure is a significant concern for regional health authorities and residents.