A suburban Philadelphia high school has been shut down today after legionella bacteria was found in the school’s hot water system. The school was conducting routine testing of their water systems when a water sample from a spigot in the boiler room tested positive for legionella bacteria. This was the only area in the school that tested positive for legionella. The superintendent of the Kennett Consolidated School District, Barry W. Tomasetti, posted a bulletin to the school district’s website informing students and families of these findings. The school district stated that it is working closely with the Chester County Health Department and…