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?
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
N3B Los Alamos hosts public meeting on cleanup status of 19 historical LANL sites in Pueblo Canyon
November 5, 2021 - LOS ALAMOS, N.M. — The U.S. Department of Energy’s Office of Environmental Management Los Alamos Field Office (EM-LA) and cleanup...
Excavation of contaminated soil protects watersheds in seven Los Alamos canyons
October 19, 2021 -
N3B and EM-LA to hold virtual Environmental Management Cleanup Forum on September 29, 2021
September 28, 2021 -