Mayor Chokwe Antar Lumumba said that extensive testing of Jackson's beleaguered water system revealed a tiny portion of the city had lead in its water, but smaller-scale independent testing by the Clarion Ledger and the Mississippi Center for Investigative Reporting suggests that elevated lead results could be more widespread.
Read MoreNearly a hundred years ago, Jackson's leaders were just as concerned about its water infrastructure as they are today, but for different reasons.
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