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
N3B surpasses small business goals amid record procurements
January 16, 2024 - LOS ALAMOS, N.M.— Newport News Nuclear BWXT Los Alamos (N3B), the legacy waste cleanup contractor at Los Alamos National Laboratory,...
N3B completes field work at two soil cleanup campaigns
December 19, 2023 - N3B is making steady progress in a key program central to the legacy cleanup mission at Los Alamos National Laboratory....
N3B makes waste cleanup progress at LANL in fiscal year 2023
October 31, 2023 - LOS ALAMOS, N.M. – Newport News Nuclear BWXT Los Alamos (N3B) successfully completed several key legacy waste cleanup accomplishments at Los...