Four years after the Flint water crisis began, multiple tests conducted by independent researchers and the government show that lead levels in the drinking water have dropped back below federal guidelines.  Flint’s drinking water became contaminated after the city switched its water source from Lake Huron to the Flint River. Nearly $500 million has been committed to address the aftermath of this public health disaster. Michigan State Senator Jim Ananich discusses how the state continues to monitor the health of children exposed to high lead levels in the water, as well as ways to avoid another crisis, including a focus on upgrading the infrastructure.