Company Overview

"The EM-LA mission is to safely, efficiently, and with full transparency complete the cleanup of legacy contamination and waste resulting from nuclear weapons development and government-sponsored nuclear research at the Los Alamos National Laboratory."

Newport News Nuclear BWXT Los Alamos (N3B) manages the 10-year, $1.38 billion Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy, Office of Environmental Management, Los Alamos Field Office. N3B is a limited liability company owned by Huntington Ingalls Industries (HII) Nuclear and BWX Technologies, joined by our critical subcontractors Longenecker and Associates and Tech2 Solutions.

Maintaining an open dialog with the public is central to the Environmental Management (EM) mission at Los Alamos National Laboratory (LANL). Our goal is to keep our stakeholders and the public fully informed about our activities. On the pages linked below, you’ll find more information on the Environmental Management Los Alamos Field Office’s (EM-LA) mission at LANL, such as the current status of cleanup campaigns and Consent Order milestones, recent presentations given at public meetings, and contracts related to the EM mission at LANL.

Who We Are

A group of talented, qualified individuals lead our efforts to clean up and protect legacy waste at LANL and protect the environment. 

Working safely with the DOE Environmental Management’s Los Alamos Field Office to clean up the environment and protect the future

N3B’s primary responsibility is to characterize, manage and cleanup legacy waste at Los Alamos National Laboratory. Legacy waste is defined as waste that was generated before 1999.

What We Do

Environmental Remediation
We identify, characterize, monitor and remediate contaminated groundwater, surface water, and waste sites. 

Waste Management
We manage, characterize, package and ship waste offsite for permanent disposal. 

Our Work is Impactful

We are performing important work that enhances our community and cleans up the environment.  We offer competitive salaries and an excellent benefits package.  Come join our team and help us make an impact.

Environmental Remediation 
A major part of the Los Alamos Legacy Cleanup Contract is cleaning up areas of contamination, which includes the demolition of facilities and remediation of sites associated with past LANL operations.

The sites may be small, one-time spill areas or large Material Disposal Areas, where contaminated materials were disposed during the Manhattan Project and Cold War years. N3B also monitors groundwater beneath LANL and controls the potential offsite migration of storm water.

The Chromium and Royal Demolition Explosive (RDX) projects are examples of efforts to monitor and, in some cases, remove contaminated materials from groundwater, while preventing offsite migration.

Company Summary
N3B Los Alamos, LLC
Number of Employees
(505) 257-7690
1200 Trinity Drive
Los Alamos, NM