The Santa Susana Field Laboratory (SSFL) located in the hills above Chatsworth, California has been in operation since the early 1950’s. The area designated as the Energy Technology Engineering Center (ETEC), Area IV of SSFL, has been historically used for nuclear energy related research projects. One of these was the Sodium Reactor Experiment (SRE) project. The SRE was built between 1955 and 1957. The 2-megawatt sodium-cooled, graphite-moderated, thermal reactor was operated from April 1957 through February 15, 1964. From 1964 to 1976, the reactor was in a protective storage mode. Decontamination of the SRE began in 1976 and was completed in 1982 by Rockwell International personnel.
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