On May 3, 1982, District 214 adjusted data for a computer study and corrected the target list for school closures: John Hersey High School, Arlington, and Prospect High School. On May 17, 1982, the District 214 board voted 5–2 to close Arlington High School. A group of Arlington High School parents formed the Assembly of Citizens and Taxpayers (ACT) to study the possibility of seceding from District 214 and forming their own district (August, 1982). Eventually a lawsuit was filed by five Arlington Heights residents and ACT against District 214, charging the board ignored facts from its own studies (November 18, 1982).