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
2022 highlights of N3B Los Alamos’ legacy environmental cleanup at LANL
January 12, 2023 - LOS ALAMOS, N.M. — In its fourth year addressing environmental impacts from Los Alamos National Laboratory’s (LANL) Manhattan Project and...
N3B Los Alamos brightens holidays for Española’s Conjunto Preschool children
January 3, 2023 - LOS ALAMOS, N.M. – Employees at N3B Los Alamos brightened the holiday season for the children and families of Española’s...
N3B Los Alamos seeks next generation of employees for environmental cleanup at LANL
December 6, 2022 - LOS ALAMOS, N.M. – A series of recent job fairs hosted by N3B Los Alamos have resulted in 26 new...