Categorical Exclusion Determination
Office of NEPA Policy and Compliance
October 5, 2016
Estimated Read Time min
Potable water is not needed in the Battery Room of the Advanced Test Reactor (ATR), building TRA-670, and presents the risk of inadvertent filling of batteries with potable water instead of the required demineralized water. Both potable water and low-pressure demineralized water (LDW) is provided from separate faucets to a single sink in the Battery Room, and both faucets are leaking. The proposed action would disconnect approximately 20 feet of 3/4-inch galvanized potable water line and cap the potable water line at a 'T' that splits the pipe to provide potable water to a safety shower. The cap for the potable water line would be NSF-61 and lead-free. The sink would remain in place and the leaking LDW valve would be replaced.