NNSA NEPA reading room

Welcome to the National Nuclear Security Administration’s National Environmental Policy Act (NEPA) Reading Room. This site serves as a focal point for NNSA NEPA implementation and will contain information about past and current NNSA NEPA actions as well as other resources for NEPA practitioners and members of the public.

 

  • Public Hearings Scheduled for LANL Draft Sitewide Environment Impact Statement

    The Department of Energy’s National Nuclear Security Administration (NNSA) is holding four public hearings to receive comments on the Los Alamos National Laboratory Draft Site-Wide Environmental Impact Statement (SWEIS).

    The LANL Draft SWEIS analyzes the potential environmental impacts associated with continuing LANL operations and foreseeable new and/or modified operations and facilities for approximately the next 15 years.

    The meetings on February 11 will include an option for virtual (internet-based) participation (with telephone access). The schedule is as follows:

    Tuesday, February 11, 2025
    1:00-4:00pm and 5:00-8:00pm
    Santa Fe Community Convention Center
    Sweeney Ballroom
    201 W. Marcy St.
    Santa Fe, NM 87501

    Online Public Meeting: 
    1:30 pm-4:00 pm
    Access by Internet: https://tinyurl.com/LANLSWEIS1
    Meeting ID:  246 608 386 25
    Access by Telephone: 719-283-1404
    Phone ID:  409 573 1#

    Online Public Meeting: 
    5:30 pm-8:00 pm
    Access by Internet: https://tinyurl.com/LANLSWEIS2
    Meeting ID: 285 648 444 285
    Access by Telephone: 719-283-1404
    Phone ID: 818 405 462#

    Wednesday, February 12, 2025
    5:00-8:00pm 
    Mision y Convento
    405 N. Paseo de Onate
    Española, NM 87532

    Thursday, February 13, 2025
    5:00-8:00pm
    Fuller Lodge, Pajarito Room
    2132 Central Avenue
    Los Alamos, NM 87544

    All meeting times are Mountain Time. The first 30 minutes of the in-person meetings will be an open-house poster session.

    Additional details and meeting materials are available for review online at: 
    /nnsa/nnsa-nepa-reading-room

    Written comments on the Draft SWEIS can be submitted by email to: 
    [email protected]
    or in writing to:
    Mr. Stephen Hoffman, DOE/NNSA, 3747 West Jemez Road, Los Alamos, New Mexico 87544

    Please mark envelopes and emails as: SWEIS Comments

    Comments must be received/postmarked by March 11, 2025.

     

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    Notice of Public Meeting for supplemental Environmental Impact Statement (SEIS) for enhanced plutonium facility utilization at the Lawrence Livermore National Laboratory (LLNL)

    NNSA is holding a virtual public scoping meeting to invite public participation in the NEPA process by soliciting comments on the scope and reasonable alternatives that should be considered in the SEIS. The SEIS is tiered from the 2023 LLNL Site-wide EIS and will evaluate Enhanced Plutonium Facility Utilization at LLNL’s Livermore site, to include potential environmental impacts of a security upgrade from Category III to Category II and changes to programmatic operations in the facility. The proposed enhanced utilization of research and development operations is critical to NNSA’s Stockpile Stewardship Program. A 45-day public scoping period for input on the SEIS began on January 13, 2025, and will continue to March 3, 2025

    NNSA is holding a virtual public scoping meeting to present information and receive formal public comments on the proposed action (attendance is not required to provide comments) on: 

    DATE:  Wednesday, January 29, 2025
    TIME:  Virtual Public Scoping Meeting: 6:00pm-8:00pm Pacific Standard Time
    INTERNET ACCESS:  Zoom Link: https://us02web.zoom.us/j/87030530202

    Shortened Link: www.tinyurl.com/LLNL-SEIS

    PHONE DIAL-IN ACCESS:  1-669-444-9171
    Webinar ID: 870 3053 0202

    Additional details about the SEIS and the public input process are available for review online at: /nepa/doeeis-0547-s1-supplemental-eis-enhanced-plutonium-facility-utilization-livermore-california

  • Notice of intent (NOI) to Prepare a Supplemental Environmental Impact Statement (SEIS) for enhanced plutonium facility utilization at the Lawrence Livermore National Laboratory (LLNL) available for public comment and notice of public meetings

    NNSA has published a Notice of Intent (NOI) in the Federal Register on January 13, 2025, to announce its intent to prepare a Supplemental Environmental Impact Statement (SEIS) for Enhanced Plutonium Facility Utilization at the Lawrence Livermore National Laboratory (LLNL) in Livermore, CA (LLNL SEIS) (DOE/ EIS-0547-S1). The LLNL SEIS is tiered from the 2023 LLNL Site-Wide Environmental Impact Statement (SWEIS) (2023 LLNL SWEIS) (DOE/EIS-0547) and will be prepared by NNSA’s Lawrence Livermore Field Office (LLFO) to meet the requirements of the National Environmental Policy Act of 1969 (NEPA). The LLNL SEIS will analyze the potential environmental impacts of enhanced plutonium facility utilization, other reasonable alternatives that may be identified, and the baseline operations as discussed in the 2023 LLNL SWEIS. The purpose of the NOI is to invite public participation in the SEIS process and to encourage public involvement on the scope, any environmental issues, and alternatives that NNSA should consider in the draft SEIS. 

    NNSA invites Federal and state agencies, Native American Tribes, state and local governments and agencies, industry, other organizations, and members of the public to submit comments to assist in identifying environmental issues and determining the appropriate scope of the LLNL SEIS through March 3, 2025. Comments received or postmarked after the comment period will be considered to the extent practicable. 

    NNSA will hold one virtual public scoping meeting to receive comments. The date of the meeting will be provided in a future notice posted on this website: /nnsa/nnsa-nepa-reading-room. NNSA will hold the meeting no earlier than 15 days from the posting of the notice. Public scoping meeting dates and details will also be announced in local media outlets.

    Written comments on the LLNL SEIS for Enhanced Plutonium Facility Utilization should be submitted no later than March 3, 2025 and sent to: 

    Mail:
    Mr. Alan Chen
    NEPA Document Manager
    National Nuclear Security Administration, Livermore Field Office
    7000 East Avenue, L-293
    Livermore, CA 94550-9234

    Email:         [email protected]
    Phone:        833-778-0508 to leave a message

    Before including your address, phone number, email address, or other personal identifying information in your comment, please be advised that your entire comment—including your personal identifying information—may be made publicly available. If you wish for NNSA to withhold your name and/or other personally identifiable information, please state this prominently at the beginning of your comment. You may also submit comments anonymously. 

    NNSA’s NOI for the LLNL SEIS for Enhanced Plutonium Facility Utilization will be available here for your review: /nepa/articles/doeeis-0547-s1-notice-intent

    For more information on the LLNL SEIS, please visit this page: /nepa/doeeis-0547-s1-site-wide-eis-continued-operation-lawrence-livermore-national-laboratory

     

     

    DRAFT LOS ALAMOS NATIONAL LABORATORY (LANL) SITE-WIDE ENVIRONMENTAL IMPACT STATEMENT (SWEIS) AVAILABLE FOR PUBLIC COMMENT AND NOTICE OF PUBLIC HEARINGS

    NNSA is making a Draft Site-Wide Environmental Impact Statement (SWEIS) for Continued Operation of the Los Alamos National Laboratory (LANL SWEIS) (DOE/ EIS-0552) available for public review and comment in compliance with the National Environmental Policy Act of 1969 (NEPA). NNSA is also announcing a 60-day public comment period and four public hearings to receive comments on the Draft LANL SWEIS. NNSA prepared the Draft LANL SWEIS to analyze the potential environmental impacts associated with continuing LANL operations and foreseeable new and/or modified operations and facilities for approximately the next 15 years. NNSA announced its intent to prepare a new LANL SWEIS on August 19, 2022 (87 FR 51083). 

    NNSA invites Federal and state agencies, Native American Tribes, state and local governments, industry, other organizations, and members of the public to submit comments on the Draft LANL SWEIS through March 11, 2025. NNSA will consider all comments received or postmarked by the end of the comment period in preparing the Final LANL SWEIS. Comments received or postmarked after the comment period will be considered to the extent practicable.

    NNSA will hold four public hearings (two of which will include a virtual component) to receive comments on the Draft LANL SWEIS. The in-person meetings will be held: 

    Date and TimeLocationAddress

    Tuesday, February 11, 2025
    1:00-4:00 pm Mountain Time (MT) 

    *Virtual Meeting: 1:30-4:00 pm MT

    Santa Fe Community Convention Center

    Sweeney Ballroom

    201 W. Marcy St. 
    Santa Fe, NM 87501

    Tuesday, February 11, 2025
    5:00-8:00 pm MT 

    *Virtual Meeting: 5:30-8:00pm

    Santa Fe Community Convention Center

    Sweeney Ballroom

    201 W. Marcy St. 
    Santa Fe, NM 87501

     

    Wednesday, February 12, 2025
    5:00-8:00 pm MT

     

    Mision y Convento

     

    405 N. Paseo de Onate
    Española, NM 87532

     

    Thursday, February 13, 2025
    5:00-8:00 pm MT

    Fuller Lodge

    Pajarito Room

     

    2312 Central Ave.
    Los Alamos, NM 87544

    Written comments on the Draft LANL SWEIS should be submitted no later than March 11, 2025 and sent to: 

    Mail:
    Mr. Stephen Hoffman
    LANL SWEIS Document Manager
    DOE/NNSA
    3747 W. Jemez Road
    Los Alamos, New Mexico 87544

    Email: [email protected]

    Phone: 505-665-8980 to leave a message

    Before including your address, phone number, email address, or other personal identifying information in your comment, please be advised that your entire comment—including your personal identifying information—may be made publicly available. If you wish for NNSA to withhold your name and/or other personally identifiable information, please state this prominently at the beginning of your comment. You may also submit comments anonymously. 

    The Draft LANL SWEIS will be available here for your review: /nepa/articles/doeeis-0552-draft-environmental-impact-statement

    Copies of the Draft LANL SWEIS are available for review at the LANL Public Reading Room at 94 Cities of Gold Road, Pojoaque, New Mexico.

    NNSA’s Federal Register (FR) Notice of Availability (NOA) is available here for your review: /nepa/articles/doeeis-0552-nnsa-notice-availability-draft-environmental-impact-statement

    The Environmental Protection Agency (EPA’s) NOA in the FR is available here for your review: /nepa/articles/doeeis-0552-epa-notice-availability-draft-environmental-impact-statement

    For more information on the Draft LANL SWEIS, please visit this page: /nepa/doeeis-0552-site-wide-environmental-impact-statement-continued-operation-los-alamos-national-0

  • Los Alamos National Laboratory (LANL) Site-Wide Environmental Impact Statement (SWEIS) NEPA documents

    Sandia National Laboratory (Sandia) Site-Wide Environmental Impact Statement (SWEIS) NEPA documents

For more information about the NEPA law and guidance, please go to this page.

For more information about NNSA NEPA documents, please contact [email protected].