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
LANL Individual Permit status meeting scheduled for October 28
October 28, 2020 - LOS ALAMOS, N.M.—The Department of Energy’s Environmental Management Los Alamos Field Office (EM-LA) and its cleanup contractor Newport News Nuclear...
Groundwater monitoring year for LANL starts with sampling along Rio Grande
October 19, 2020 - LOS ALAMOS, N.M. — A team of environmental professionals recently completed a multiday campaign that included roughly 24 miles of...
N3B builds new controls to mitigate storm water runoff from LANL
September 21, 2020 - LOS ALAMOS, N.M. — With New Mexico’s monsoon season bringing brief periods of torrential rain, construction of new berms began over...