By Kirk Anderson and Mary Richardson, Grand Valley State University Overview of Lesson In 2014, a crisis began when the city of Flint Michigan switched its water supply in an effort to save money and the water became contaminated with lead. The EPA’s Lead and Copper Rule states that if lead concentrations exceed an action level of 15 parts per billion (ppb) in more than … [Read more...] about Lesson Plan: A Tale of One City and Two Lead Measurements
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