Los Alamos Legacy Cleanup Contract
N3B manages the 10-year, $2.1 billion Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy Environmental Management Los Alamos Field Office. N3B is responsible for cleaning up contamination that resulted from LANL operations before 1999. N3B personnel also package and ship radioactive and hazardous waste off-site for permanent disposal.
What’s New?
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 >
Environmental Management Cleanup Forum 9/10/2025 READ MORE >
N3B Commences Shipment of Corrugated Metal Pipe Waste Stream from LANL to WIPP READ MORE >
N3B 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...