Research and development of a natural uranium metal extrusion process was performed at the Seymour Site, located in Connecticut, for the U.S. Atomic Energy Commission from 1962 to 1964. Operations resulted in contamination of interior surfaces of one building and two soil areas.

DOE designated the site for remediation under FUSRAP in 1985 and conducted the cleanup in 1992 and 1993. In 1994, DOE certified that the site conformed to applicable cleanup criteria and standards and released the property for unrestricted use.

No supplemental limits or institutional controls are in effect at the privately owned site, and DOE does not require on-site monitoring or surveillance. Legacy management activities consist of managing site records and responding to stakeholder inquiries.