The National Nuclear Security Administration (NNSA), a semi-autonomous agency within the U.S. Department of Energy (DOE), is proposing new construction activities in lower Sandia Canyon at Technical Area (TA)-72 at the Outdoor Live Fire Range facility within Los Alamos National Laboratory (LANL), New Mexico.
This proposed action would include the construction and use of a new warehouse, new sanitary holding tank, range upgrades, a new dual-purpose shooting range with access roads, and streambed channel corrective actions within the 100-year floodplain. The purpose of this proposed construction is to provide improved and expanded training facilities for LANL security services, reduce potential damage to facilities from flood events, and mitigate streambed channel erosion.
NNSA has prepared this floodplain assessment in accordance with 10 Code of Federal Regulations (CFR) 1022 Compliance with Floodplain and Wetland Environmental Review Requirements. This floodplain assessment: evaluates potential impacts to floodplain values and functions from implementation of the proposed action; identifies alternatives to the proposed action; and, allows for meaningful public comment.
The Floodplain Assessment is available in the LANL Electronic Public Reading Room, on the DOE NEPA Documents webpage