November 2011

Review of Hanford Tank Farms Safety Basis Amendment for Double-Shell Tank Ventilation System Upgrades

This report provides the results of an independent oversight review of the draft safety basis amendment for the double shell tank ventilation system upgrades  at the Department of Energy's (DOE) Hanford Site Tank Farms.  The review was conducted July 25 to August 12, 2011, by the Office of Safety and Emergency Management Evaluations, within the DOE Office of Health, Safety and Security.  The review focused on the safety functions of the primary tank ventilation systems and the proposed engineering upgrades to those systems.