>>> Responding to a Freedom of Information Act request about the poisonous nature of Flint, Michigan's water, the EPA quietly released 5,155 pages of internal documents. They placed the humongous PDF file in a search-only archive with cryptic header info, meaning that you have to know exactly what you're looking for.
The Memory Hole 2 has placed the file here.
According to the EPA's name for the PDF file, 1) it was released on May 12, 2016, and 2) there are more documents related to this request, as this is referred to as an interim release. It was released due to a request from John Flesher of the Associated Press, who asked for
"electronic copies of all EPA memos, e-mails and other documents that pertain in any way to the subject of corrosion control additives in the public water system of Flint, Michigan. In particular, these should include any documents that involve decisions not to use corrosion control after the city began drawing water from the Flint River in 2014."