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?
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 >
N3B News
N3B Los Alamos seeks next generation of employees for environmental cleanup at LANL
December 6, 2022 - LOS ALAMOS, N.M. – A series of recent job fairs hosted by N3B Los Alamos have resulted in 26 new...
Community meeting Nov. 9 on storm water runoff from legacy LANL sites
November 2, 2022 - LOS ALAMOS, N.M. — A hybrid community meeting on monitoring storm water runoff from sites potentially contaminated from historical operations...
Community meeting Oct. 26 to discuss legacy environmental cleanup at LANL
October 24, 2022 - LOS ALAMOS, N.M.—The Department of Energy’s Environmental Management Los Alamos Field Office and its legacy environmental cleanup contractor, N3B Los...