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CX-003399: Categorical Exclusion Determination

100 K Area Utilities Reroute
CX(s) Applied: B1.26
Date: 05/26/2010
Location(s): Richland, Washington
Office(s): Environmental Management, Office of River Protection-Richland Office

The Department of Energy, Richland Operations Office, needs to accelerate decommissioning and demolition (D&D) of the 100 K Area ancillary facilities, 100 K waste site remediation, and 105-K East and 105-K West reactor disposition. The proposed activities would provide for the isolation of 100 K area utilities to facilitate achieving cold and dark conditions for the facilities subject to D&D and remediation. The proposed activities would include the elimination of raw water withdrawals from the Columbia River by closing the 183-K East waste supply station and installing a temporary supply system to provide water and not interfere with D&D activities. Electrical systems would also be rerouted to facilitate the D&D of tunnels.