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 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
Mexican spotted owl protected during Los Alamos cleanup
April 5, 2021 - LOS ALAMOS, N.M. — To protect a treasured ecological species of Northern New Mexico, Newport News Nuclear BWXT Los Alamos...
New N3B apprentices receive college education, jobs to assist in legacy waste cleanup
February 11, 2021 - LOS ALAMOS, N.M.—A new cohort of students recently joined N3B’s Nuclear Operator Apprenticeship Program. And for Miquela Casados, from Ojo...
N3B ships more than 200,000 gallons of ‘transition materials’ off-site at LANL
February 2, 2021 - LOS ALAMOS, N.M. – Newport News Nuclear BWXT Los Alamos (N3B) recently took on new work to ship hundreds of...