CITY OF NEWBURGH – Former Newburgh fire Chief Mike Vatter pleaded guilty Friday to a federal charge of fraudulently receiving $95,106 in pension benefits after ending his retirement to lead the city’s department in November 2009.Vatter, 57, entered his plea before U.S. District Court Judge Cathy Seibel in White Plains, three months after he was arrested and charged with wire fraud by the U.S.