We are the Los Alamos Legacy Cleanup Contractor
Clean Up The Environment - Protect Our Future
We are committed to our community
Clean Up The Environment - Protect Our Future
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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.



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



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



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 

WasTe Managment

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

News & Highlights

Nationally recognized award given to N3B employees for building homegrown workforce - June 16, 2020

LOS ALAMOS, N.M. — Three staff members at Newport News Nuclear BWXT Los Alamos (N3B) recently received a nationally recognized award... Read More ›

N3B donates $100,000 to NNMC President’s Eagle Fund - May 4, 2020

N3B donates $100,000 to NNMC President’s Eagle Fund LOS ALAMOS, N.M.—Newport News Nuclear BWXT Los Alamos (N3B) and Northern New... Read More ›

UNM-LA and NNMC students receive environmental scholarships - March 11, 2020

LOS ALAMOS, N.M.—Three Northern New Mexico students have received the Danny Nichols Memorial Scholarship, which was established to attract talented... Read More ›

Social Media Feed

N3B Los Alamos
N3B Los Alamos3 days 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...

N3B Los Alamos
N3B Los Alamos1 week 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...

N3B Los Alamos
N3B Los Alamos4 weeks 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...

N3B Los Alamos
N3B Los Alamos4 weeks 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...

N3B Los Alamos
N3B Los Alamos1 month ago

ICYMI: Thanks to the Los Alamos Reporter for covering our Water Program's COVID pivot as we continued our campaign to sample groundwater and sediment along the #RioGrande below #LosAlamos National Laboratory. #cleanup #NewMexico


N3B Los Alamos
1200 Trinity Drive
Suite 150
Los Alamos, NM 87544


(505) 257-7690



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