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JULY 2021    |   SRNS TODAY   |   5
                                                                                            JUL Y 2021    |   SRNS  T ODA Y   |   5
        Restoring 1M square feet and counting



        Demolition of Cold War buildings
        helps SRS surpass major milestone























                                                                                            Recently, SRS demolished the Ford building.

        S     RNS has surpassed a major environmental restoration   Made by Ford Motor Company, these control systems played an important

                                                                role as part of Site programs that produced plutonium and tritium.
              milestone with the deactivation and decommissioning of 50
              buildings at SRS — more than 1 million square feet of space
        — since August 2008. Within the next year, an additional 13 buildings   Later, the Ford Building was reconfigured to function as a repair facility
                                                                for nuclear reactor heat exchangers used to cool reactor vessels. During
        are scheduled to be demolished within the Site’s D Area, where   the Cold War, SRS operated five reactors, each using 12 heat exchangers.
        electricity, steam and heavy water (moderator for reactor vessels)
        were once produced.                                     “What most people don’t realize is that each building we take down
                                                                presents its own set of challenges from beginning to end,” said Chris
        The SRNS Area Closure Projects management team is working from a   Bergren, SRNS Director, Environmental Compliance and Area Closure
        federally-approved list of buildings to deactivate, decommission, grout   Projects. “Often hundreds of hours and a lot of hard work goes into
        or demolish at SRS.                                     planning and preparing a building for grouting or destruction, long before
        “As a result of this extensive number of deactivation and   the heavy equipment arrives. Electrical wiring, radioactive contamination
        decommission projects across the Site, we no longer need to incur   and friable asbestos are just a few of the hazards we may face. Safety is
        the ongoing costs associated with these inactive and obsolete   preeminent — the structure has to be cold, empty and dark before the
        structures,” said Steve Conner, an environmental project manager   roof and walls can be touched by the demolition equipment.”
        with SRNS. “We can continue to safely and efficiently demolish and   SRNS continues to steadily reduce the Site’s environmentally impacted
        remove unneeded buildings to eliminate the need for surveillance   footprint, while preparing for future missions. Currently, only 15% of
        and maintenance activities, while preventing any potential release of   remaining SRS property will require environmental cleanup.
        hazardous substances to the environment.”
        According to Conner, various structures such as warehouses,
        reactors, reactor fuel manufacturing facilities and an enormous
        cooling tower no longer stand at SRS.
        Built in the 1950s, the P and R Reactor buildings were mammoth
        structures both above and below the ground. In 2011, they were
        decommissioned, using a unique process that filled the structure
        to ground level with a specially designed concrete-like grout. This
        cleanup work locked contamination inside the buildings and avoided
        the cost of continuing interior maintenance.
        More recently, SRS demolished the radiologically contaminated
        Ford Building.
        Decades ago, employees at the Ford Building worked daily on
        hundreds of control rod assemblies, which were used to ensure a      Thick steel doors within P and R Reactor buildings at SRS were removed prior to
        stable nuclear criticality within reactor vessels that now are dormant.  filling the structures with concrete-like grout.
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