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 and UNM-Los Alamos team up for Radiological Control Technician Boot Camp
August 27, 2019 - LOS ALAMOS, N.M.—Nuclear News Nuclear BWXT Los Alamos (N3B) and the University of New Mexico-Los Alamos (UNM-LA) have partnered to...
N3B completes first year of legacy waste cleanup at LANL
May 1, 2019 - LOS ALAMOS, N.M.—This week, Newport News Nuclear BWXT Los Alamos (N3B) celebrates its first anniversary as a new company cleaning...
Workers complete PCB cleanup completed at Los Alamos Canyon site
March 27, 2019 - LOS ALAMOS, N.M. – N3B has have finished cleaning up PCB-contaminated soil near the former Omega research reactor site at Los...