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 exceeds legacy waste shipment goals for FY22
October 5, 2022 - LOS ALAMOS, N.M. — N3B Los Alamos finished fiscal year 2022 (FY22) by exceeding the U.S. Department of Energy’s (DOE)...
N3B Los Alamos awards millions in subcontracts to support soil remediation at LANL
September 20, 2022 - LOS ALAMOS, N.M. – N3B Los Alamos recently awarded subcontracts to three small environmental firms that will assist in accelerating...
N3B Los Alamos collaborates on gaging station to monitor streamflow to Rio Grande
September 6, 2022 - LOS ALAMOS, N.M. — A recently installed real-time streamflow gaging station will inform decisions made by Buckman Direct Diversion (BDD)...