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
N3B honors Earth Day with ongoing eco-scoping at LANL
April 20, 2022 - LOS ALAMOS, N.M. — With its steep canyons and watersheds emptying into the Rio Grande, a swath of ancient pueblo...
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...