The Linemaster Switch Corp-Treatment Plant, EPA ID 110049849107, remains on the National Priorities List as an active site. Primary contaminants include hazardous industrial substances that migrate through groundwater plumes and soil vapor. Exposure pathways involve the ingestion of contaminated well water or the inhalation of vapors entering buildings through foundations. Health risks associated with long-term exposure to industrial solvents and unspecified hazardous substances include potential damage to the liver, kidneys, and nervous system, as well as increased cancer risks. The EPA oversees ongoing remediation to contain these plumes and monitor local environmental quality. To defend against local hazards, residents should first install high-grade carbon water filtration systems if using private wells. Second, homeowners should conduct radon and vapor intrusion testing to ensure indoor air quality is not compromised by subsurface chemicals. Third, residents must avoid consuming fish from local ponds or using untreated stream water for irrigation. Staying informed through the EPA site profile for Linemaster Switch Corp is necessary for monitoring cleanup progress and potential site boundary shifts.