Los Alamos Legacy Cleanup Contract
N3B manages the 10-year, $2.1 billion Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy Environmental Management Los Alamos Field Office. N3B is responsible for cleaning up contamination that resulted from LANL operations before 1999. N3B personnel also package and ship radioactive and hazardous waste off-site for permanent disposal.
What’s New?
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 >
Environmental Management Cleanup Forum 9/10/2025 READ MORE >
N3B Commences Shipment of Corrugated Metal Pipe Waste Stream from LANL to WIPP READ MORE >
N3B News
In Pictures: EM’s Avery Views Los Alamos Legacy Waste Disposition Progress
May 21, 2024 - U.S. Department of Energy Office of Environmental Management (EM) Principal Deputy Assistant Secretary Jeff Avery, left, visits Technical Area 54,...
N3B demonstrates new system to enhance analysis of waste drums
May 21, 2024 - LOS ALAMOS, N.M.— A system developed in the United Kingdom to more accurately analyze the contents of radioactive waste drums...
N3B awards two new subcontracts valued at $36.5 million
May 8, 2024 - LOS ALAMOS, N.M.—Newport News Nuclear BWTX Los Alamos (N3B) recently awarded two new small business subcontracts worth up to $36.5...