The K-25 Building has been shut down since the mid 1960's. Maintenance activities continued to decrease over time. Ventilation systems are inactive and metal plates have been welded over ceiling openings in some vaults due to security requirements. The roof is in need of repair and there is a continual problem with water leaking into the vaults. The accumulation of moisture and the lack of ventilation were ideal conditions for the growth of mold, fungi, and bacteria.
Most vaults are radiologically controlled areas.
While not in accordance with the BIO, other organizations occupying the vaults assumed responsibility for their individual areas, which contributed to a lack of coordination and control in the facility. During a walkdown of the building, it was noted that housekeeping and maintenance of individual vaults were not consistent. While some vaults are entered infrequently, there is no minimum level of cleanliness established nor administrative control documented that restricts access to the vaults. Vaults were observed to contain wet, rotting wooden debris and broken or missing wooden covers over utility trenches. Multiple facility managers were assigned to different areas within the K-25 Building vaults.