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?
N3B Releases 2025 Community Commitment Annual Report READ MORE >
Updates on Hexavalent Chromium Campaign READ MORE >
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
More than $12,700 raised by N3B Los Alamos to support local food bank
July 15, 2022 - LOS ALAMOS, N.M. – Team members of N3B Los Alamos were pleased to present a check for $12,740 to local...
N3B Los Alamos achieves key milestones in campaign to determine closure for historically contaminated sites
July 12, 2022 - LOS ALAMOS, N.M. — N3B Los Alamos recently met key milestones in a cleanup campaign to reevaluate whether certain sites...
N3B Los Alamos awards scholarships to local students with eye for legacy environmental cleanup
June 29, 2022 - LOS ALAMOS, N.M. – Three University of New Mexico-Los Alamos (UNM-LA) students each recently received $1,300 in N3B scholarships to...