Initial Hazard Categorization for the Hanford Site Tank Farms

Abstract

This document reports results of an Initial Hazard Categorization for the Hanford Site Tank Farms using the procedure set forth in DOE Standard 1027-92. For documentation purposes the initial Hazard Categorization calculations were made for two cases. The first case treats each tank as an individual segmented facility. The second case treats all 177 of the Hanford Site tanks as a single segmented facility. Calculations were performed using conservative estimates for the tank waste radioactive inventories. The initial hazard category is Hazard Category 2 when each tank is treated as an individual facility segment, and is also Hazard Category 2 when the 177 tanks are treated collectively as a single facility segment