This yearlong investigation - more than two dozen stories that culminated in an hourlong, primetime special -- exposed students drinking lead-contaminated water inside Nashville schools, parents being kept in the dark about the test results, as well as officials secretly plotting to bypass lead filters to save money and using testing methods that disguised the real contamination. Through persistence and dogged reporting, we exposed a scandal that would make national news in 2018. As a result, the head of facilities for the school district was forced to resign. District officials were also pressured by Nashville's mayor and health department to reform their testing practices. In addition, our intense focus on the issue in 2018 would be credited with reviving legislation that's designed to help keep children across Tennessee safe.