Los Alamos National Laboratory Floodplain Assessment for the Installation of Permanent Power to the TA-36 Remote Restroom

Los Alamos National Laboratory Floodplain Assessment for the Installation of Permanent Power to the TA-36 Remote Restroom

The National Nuclear Security Administration (NNSA), a semi-autonomous agency within the U.S. Department of Energy (DOE), is proposing new construction at Los Alamos National Laboratory (LANL) at Technical Area 36 (TA-36; Figure 1). This floodplain assessment has been prepared in accordance with DOE regulations set forth in Title 10 Code of Federal Regulations (CFR), Part 1022, Compliance with Floodplain and Wetland Environmental Review Requirements (CFR 2003). The proposed project would provide permanent electrical power to a vault-type restroom. Project activities within the 100-year floodplain would include installation of underground conduit for electrical wiring.

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. DOE/NNSA published this floodplain assessment for a 15-day public review and comment period that closed on March 31, 2025.