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 awards second cleanup subcontract at TA-21 to LATA
March 21, 2019 - LOS ALAMOS, N.M. — Building 257 is a former radioactive liquid waste processing facility that will be torn down as...
N3B awards $1.5 million in cleanup work to TerranearPMC/Envirocon
October 16, 2018 - LOS ALAMOS, N.M.—Newport News Nuclear BWXT Los Alamos (N3B) has awarded a subcontract to TerranearPMC of Los Alamos, New Mexico,...
N3B Begins LANL Waste Shipments to WIPP
October 10, 2018 - LOS ALAMOS, N.M.—Newport News Nuclear BWXT Los Alamos (N3B) last week began shipments of transuranic waste from Los Alamos National...