Los Alamos National Laboratory Addendum to the Wetland Assessment for the Replacement Water Lines from Technical Area 48 to Technical Area 55 Project

Los Alamos National Laboratory Addendum to the Wetland Assessment for the Replacement Water Lines from Technical Area 48 to Technical Area 55 Project

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). This wetland assessment evaluates potential impacts to wetland values and functions from implementation of the proposed project, identifies alternatives to the proposed project, and allows for meaningful public comment.

 The water line replacement project would install two 12-inch water lines along an alignment from Technical Area (TA) 48 to Pecos Road on the east side of TA 55. The water lines would replace aging cast iron pipes that provide water for fire suppression to buildings within TA-55, and potable water to other areas in the Pajarito Corridor. A wetland assessment was published June 2022 addressing potential wetland impacts from the project as proposed in 2022. Part of the project was completed but due to issues with the original construction method, the project is proposing a different construction method along the northern fenced boundary of TA-55. 

For more information, see Los Alamos National Laboratory Wetland Assessment for the Replacement Water Lines from Technical Area 48 to Technical Area 55 Project | Department of Energy.