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
Newly reconfigured monitoring well will better protect groundwater
March 10, 2020 - LOS ALAMOS, N.M. — Newport News Nuclear BWXT Los Alamos (N3B) recently reconfigured a groundwater monitoring well in the southeastern...
Growing diversity through workforce development programs
February 27, 2020 - LOS ALAMOS, N.M. – In an effort to create a homegrown and well-paid workforce that represents greater diversity, Newport News...
N3B contributes nearly $415,000 to community groups in 2019
February 23, 2020 - LOS ALAMOS, N.M.—In 2019, 45 Northern New Mexico community groups received $414,444 from Newport News Nuclear BWXT Los Alamos (N3B)....