History Channel – ROCKETDYNE   THEY OCCURRED IN 1959, 1964, 1969, Doug Carrol 19 Nov 18 “Until 2006, the site was operated by private corporations for federal agencies — chiefly NASA. The problems there began in 1959, when a nuclear reactor partially melted down, contaminating portions of the hilltop facility and spewing radioactive gases into the … Continue reading THERE WERE 3 RADIATION FALLOUT RELEASES AT SANTA SUSANA NOT 1