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
N3B employment boot camps thrive in Los Alamos to support environmental cleanup
April 18, 2022 - LOS ALAMOS, N.M. – A total of 22 students in the Radiological Control Technician (RCT) boot camp doubles last year’s...
N3B Los Alamos awards scholarships to three local students: Alyssa Aguilar, Daniel Tafoya and Jimmy Wheeler
March 4, 2022 - Alyssa Aguilar, a student at Northern New Mexico College, along with Daniel Tafoya and Jimmy Wheeler, both students at University...
N3B and EM-LA host DOE EM senior advisor for tour of environmental cleanup progress
February 15, 2022 - LOS ALAMOS, N.M. — William “Ike” White, senior advisor for the Department of Energy’s Office of Environmental Management (EM), visited...