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?
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 >
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
Hydraulic shearing key to N3B’s waste retrieval at Los Alamos
June 14, 2022 - LOS ALAMOS, N.M. – N3B Los Alamos recently installed a hydraulic shear system for remediating transuranic (TRU) waste contained in large, corrugated...
Streamlined sampling process supports N3B’s environmental cleanup at LANL
April 21, 2022 -
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...