1968 to at least 1989 the Atomic Energy Commission numbers for GRHS were 29-12957-01 and 29-12957-02 Update below, it was removed in 1991. I grew up in this town in New Jersey, 11 miles due west of the Empire State Building where the EPA found Uranium, Thorium and Radium under our Little League Field at … Continue reading Glen Ridge High School Physics Department Gammator 50B device 400 Curies of Cesium 137