We are the Los Alamos Legacy Cleanup Contractor

Clean Up The Environment - Protect Our Future

We perform Environmental Remediation and Waste Management

Learn about our Environmental Remediation Projects

Learn about our Waste Management Projects

We are committed to our community

Clean Up The Environment - Protect Our Future

Read the Report

N3B manages the Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy.

N3B manages the 10-year, $1.4 billion Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy Environmental Management’s 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 offsite for permanent disposal.

Safety

Our employees and subcontractors work to the highest standards of safety.

Discipline

We set clear goals and execute our plans with the end in mind.

Competence

We have the staff and expertise to ensure our mission is met.

Our Top Priorities

In cleaning up legacy waste, or waste generated before 1999, we are working in two key areas: Environmental Remediation and Waste Management. Our goal is to clean up the environment and protect our natural resources.

Environmental Remediation

Groundwater and surface water monitoring, chromium and RDX plume monitoring, and waste site characterization and remediation

Learn More

WasTe Managment

Hazardous and radioactive waste characterization, management, packaging and transportation offsite for permanent disposal

Learn More

News & Highlights

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... Read More ›

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... Read More ›

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... Read More ›

Visit the Newsroom

Social Media Feed

N3B Los Alamos

N3B Los Alamos5 days ago

At N3B, we’re thankful to be surrounded by such beautiful natural landscapes. And we work hard every day to protect that environment by cleaning up waste generated at #LosAlamos National Laboratory during the #Manhattan Project and Cold War era....

View on Facebook

N3B Los Alamos1 week ago

In response to difficulties encountered by students from distance learning amid the pandemic, and in a continued effort to spark interest in #STEM fields among Northern New Mexico students, @STEM Santa Fe successfully offered its annual STEM Pathways for...

View on Facebook

N3B Los Alamos3 weeks ago

Thanks to close coordination with our colleagues across Los Alamos National Laboratory (LANL), and a combined goal to move radioactive waste offsite for disposal, N3B is now using LANL’s Radioassay and Nondestructive Testing (RANT) facility to ship defense-generated transuranic (TRU) waste to the Waste Isolation...

3 View on Facebook

N3B Los Alamos1 month ago

N3B is holding the semi-annual public meeting on the LANL Individual Permit today, 5:30-7:15 p.m. To register, send an email request to N3BIPMeeting@em-la.doe.gov. The meeting agenda, copies of the presentations, meeting instructions, instructions for requesting a meeting invite, and dial-in instructions are...

View on Facebook

N3B Los Alamos1 month ago

Join us Wednesday evening for our semi-annual public meeting with DOE’s Environmental Management Los Alamos Field Office on the #LosAlamos National Laboratory Individual Permit, which authorizes the discharge of storm water from Laboratory sites where historical industrial activities occurred. Discussion topics will...