What do you know about Miguel Del Toral, an EPA employee who published the first official report noting troubles with Flint's water?

Timeline: Miguel Del Toral

JAN 21, 2016. After blowing the whistle on Flint's water, EPA “rogue employee” has been silent. Until now. Michigan Radio. "Del Toral was first alerted to Flint’s water problems last spring, when Lee Anne Walters called the EPA to complain about high levels of lead in her tap water and warn officials that her child had been diagnosed with lead poisoning. Del Toral followed up with Michigan’s Department of Environmental Quality, asking about corrosion control treatment in Flint. Emails show that in February 2015, DEQ staff told Del Toral Flint had a corrosion control program."