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CX-006923: Categorical Exclusion Determination

Design and Install a Modification to the HB-Line Exhaust Fan Dampers
CX(s) Applied: B2.5
Date: 10/13/2011
Location(s): Aiken, South Carolina
Office(s): Environmental Management

As a result of the upgrade of the HB-Line Documented Safety Analysis/Technical Safety Requirements to DOE-STD-3009, several events require protection to prevent a radiological release. The Consolidated Hazards Analysis for the HB-Line Documented Safety Basis Upgrade (U), U-CHA-H-00003, includes 13 specific events. To ensure that the HB-Line events are protected, the HB-Line Room Exhaust (RREX) Fan discharge dampers and inlet vanes need to maintain a flow path to the H-Canyon during the credited events.