The Poisoned City: Flint's Water and the American Urban Tragedy by Anna Clark. The definitive account of the 2014 water crisis, when state-appointed managers switched the city's water source to the Flint River and lead poisoning followed. Clark, a Detroit-based journalist, traces the crisis back through decades of disinvestment and racial politics.
What the Eyes Don't See by Mona Hanna-Attisha. A first-person account by the paediatrician who proved that Flint's children were being poisoned. As much a story about institutional resistance to bad news as about the chemistry of lead — and gripping with it.
The Color of Law by Richard Rothstein. Not specifically about Flint but essential context: a meticulous history of how government policy created and enforced racial segregation in American cities, with Flint among the case studies.
Demolition Means Progress by Andrew R. Highsmith. A sober academic history of Flint's rise and decline, with particular attention to how segregation, suburbanisation and the auto industry intertwined to produce the city's present condition.