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?
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 >
Los Alamos Tour Informs Senate Committee Staff About Legacy Cleanup READ MORE >
Los Alamos Completes 200th Transuranic Waste Shipment to WIPP 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
Local students complete N3B Apprenticeship Program
August 16, 2023 - LOS ALAMOS, N.M. – On August 8, Dominic Montaño and Milnor Branch graduated from the Newport News Nuclear BWXT Los Alamos...
N3B raises $10K to support LA Cares
August 10, 2023 - LOS ALAMOS, N.M. – Last month, representatives of Newport News Nuclear BWXT Los Alamos (N3B) presented a check for $10,278 to...
N3B’s support of Northern New Mexico communities outlined in 2022 annual report
February 6, 2023 - LOS ALAMOS, N.M. – N3B Los Alamos contributed nearly $370,000 to community nonprofits and workforce development initiatives in Northern New...