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 and EM-LA to hold virtual Environmental Management Cleanup Forum on June 24, 2021
June 17, 2021 - The Department of Energy’s Office of Environmental Management Los Alamos Field Office and its legacy waste contractor, N3B-Los Alamos, are...
N3B employees inspire NM youth at Summer Physics Camp for Young Women
June 10, 2021 - LOS ALAMOS, N.M. — In hopes of educating and inspiring New Mexico’s youth to pursue STEM-related careers that benefit their...
LANL Individual Permit status meeting scheduled for June 16
June 9, 2021 - LOS ALAMOS, N.M. — The Department of Energy’s Environmental Management Los Alamos Field Office (EM-LA) and its cleanup contractor Newport...