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
Local students earn associate degrees through N3B Los Alamos apprenticeship program
August 18, 2022 - LOS ALAMOS, N.M. – Local students Miquela Casados and Zac Martinez recently received associate degrees after graduating from N3B Los...
More than $12,700 raised by N3B Los Alamos to support local food bank
July 15, 2022 - LOS ALAMOS, N.M. – Team members of N3B Los Alamos were pleased to present a check for $12,740 to local...
N3B Los Alamos achieves key milestones in campaign to determine closure for historically contaminated sites
July 12, 2022 - LOS ALAMOS, N.M. — N3B Los Alamos recently met key milestones in a cleanup campaign to reevaluate whether certain sites...