Overview

• The chemical issue was discovered Thursday night in a storage cabinet inside a chemistry prep room at Winchester High School.
• The Winchester Fire Department closed the building and called in the Massachusetts HazMat Team, MassDEP, and the town Health Department to contain and decontaminate the affected area.
• Classes across the district were canceled Friday because the high school’s shutdown halted the centralized meal service for all schools.
• Investigators say the incident appears to involve a leaking container, and technicians are working to identify the substance and pinpoint the source.
• No injuries have been reported, and the district says it will provide updates once the high school is cleared to reopen.