Managing Los Alamos legacy waste
Learn how we execute the Los Alamos Legacy Cleanup Contract safely and securely.
Who we are
We manage the 10-year, $2.1 billion Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy Environmental Management Los Alamos Field Office.
What’s New?
Environmental Management Cleanup Forum 3/18/2026 READ MORE >
N3B Releases 2025 Community Commitment Annual Report READ MORE >
Updates on Hexavalent Chromium Campaign READ MORE >
Environmental Management Cleanup Forum 12/17/2025 READ MORE >
Los Alamos Provides Legacy Waste Program Updates at Public Forum READ MORE >
What we do
We clean up, package and ship radioactive and hazardous Los Alamos National Laboratory legacy waste
Land
Water
Waste
Work with us
We’re a diverse team of problem-solvers and innovators, united by our commitment to N3B’s vital mission of legacy waste cleanup and community enhancement.
Latest News
Los Alamos Checks Off EM 2024 Priority with Corrugated Metal Pipe Size Reduction
December 17, 2024 - Environmental Management Los Alamos Field Office team members are pictured in front of the 158th and final corrugated metal pipe...
N3B Awarded Two-Year Contract Extension by DOE for Ongoing Legacy Cleanup
December 12, 2024 - LOS ALAMOS, N.M. — Newport News Nuclear BWXT-Los Alamos, LLC (N3B) has received a two-year extension from the U.S. Department...
N3B Celebrates Safe Performance in LANL Legacy Cleanup Mission
November 15, 2024 - Newport News Nuclear BWXT Los Alamos (N3B) President and General Manager Brad Smith welcomes employees to the Safety Fair, highlighting...
