LANSING, Mich. (AP) — Two years after leaving office, former Michigan Gov. Rick Snyder is facing charges of willful neglect of duty in the Flint water crisis as prosecutors revisit how the city's water system was contaminated with lead during one of worst manmade environmental disasters in U.S. history.

Two misdemeanors popped up in an online court file Wednesday night after Attorney General Dana Nessel and her prosecutors announced a Thursday news conference to discuss their findings. Former officials who worked in Snyder's administration are also expected to be charged and appear in court Thursday.

“We believe there is no evidence to support any criminal charges against Gov. Snyder,” defense attorney Brian Lennon said, adding that prosecutors still hadn’t provided him with any details.

The charges against Snyder carry up to a year in jail and a $1,000 fine upon conviction. No governor or former governor in Michigan’s 184-year history had been charged with crimes related to their time in that office, according to the state archivist.

Snyder, a Republican, was governor from 2011 through 2018. The former computer executive pitched himself as a problem-solving “nerd” who eschewed partisan politics and favored online dashboards to show performance in government. Flint turned out to be the worst chapter of his two terms due to a series of catastrophic decisions that will affect residents for years.

The date of Snyder's alleged crimes in Flint is listed as April 25, 2014, when a Snyder-appointed emergency manager who was running the struggling, majority Black city carried out a money-saving decision to use the Flint River for water while a pipeline from Lake Huron was under construction.

The corrosive water, however, was not treated properly and released lead from old plumbing into homes.

Despite desperate pleas from residents holding jugs of discolored, skunky water, the Snyder administration took no significant action until a doctor reported elevated lead levels in children about 18 months later.

“I’m sorry and I will fix it,” Snyder promised during his 2016 State of the State speech.

Authorities also counted at least 90 cases of Legionnaires’ disease in Genesee County, including 12 deaths. Some experts found there was not enough chlorine in Flint's water-treatment system to control legionella bacteria, which can trigger a severe form of pneumonia when spread through misting and cooling systems.

Lead can damage the brain and nervous system and cause learning and behavior problems. The crisis was highlighted as an example of environmental injustice and racism.

The criminal investigation has lasted five years under two teams of prosecutors. Todd Flood, who got misdemeanor convictions from seven people, was ousted in 2019 after the election of Nessel, a Democrat. Fadwa Hammoud subsequently dropped charges in eight pending cases and said the investigation would start over. She said the first team had failed to collect all available evidence.

Separately, the state, Flint, a hospital and an engineering firm have agreed to a $641 million settlement with residents over the water crisis, with $600 million coming from Michigan. A judge said she hopes to decide by Jan. 21 whether to grant preliminary approval. Other lawsuits, including one against the U.S. Environmental Protection Agency, are pending.

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White reported from Detroit.