AAFB Infrastructure EIS

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Public Scoping

Due to the COVID-19 pandemic, the U.S. Air Force (USAF) conducted public scoping remotely, through May 30, 2021. Remote public scoping was conducted in accordance with the 2020 version of 40 Code of Federal Regulations Part 1506.6. All of the scoping materials are included here for the duration of the project, and are also available for download on the Documents page of this website. This page will be updated when the public review period of the Draft EIS begins in Winter 2021-2022.

Public scoping materials included a project presentation, informational brochure in English and CHamoru, and meeting posters. Each meeting poster topic was organized around one main theme of the project and the navigation bar, available below and at the bottom of the page, allows reviewers to jump to a new poster topic. Although public scoping ended on May 30, 2021 and the remote scoping meeting is complete, this information will continue to be available for review on the project website through the duration of the project.

                   Project Presentation                   Informational Brochure 

          AAFB Infra EIS_Scoping Present_032921_Page_01.jpg                  AAFB Infra EIS Scoping Brochure.png      

                 View Presentation                                  English CHamoru

Quick Jump to View Meeting Topics: Topic #1 Topic #2 Topic #3 Topic #4 Topic #5 Topic #6

Meeting Topic #1 - The National Environmental Policy Act

The National Environmental Policy Act


The National Environmental Policy Act (NEPA) of 1969 was enacted to address concerns about federal actions and their effects on the environment.  NEPA’s main objectives are as follows:

  • Ensure analysis of proposed federal programs, projects, and actions before decision-making
  • Inform the public of proposed federal activities that might affect environmental quality
  • Encourage and facilitate public involvement in the decision-making process

What is an EIS?

An Environmental Impact Statement (EIS) is the most detailed analysis prescribed by the regulations implementing NEPA.  An EIS is a detailed public document describing:

  • A proposed action
  • All alternative actions that were considered
  • Environmental impacts of implementing the proposed action and reasonable alternatives

Steps in the EIS Process

  • Notice of Intent published
  • Public scoping period
  • Preparation of Draft EIS
  • Notice of Availability (NOA) for Draft EIS published
  • Draft EIS comment period and public hearing
  • Preparation of Final EIS
  • NOA for Final EIS published
  • Waiting Period (30 days)
  • Record of Decision

Meeting Topic #2 - Public Scoping

Public Scoping

What is Public Scoping?

  • An early and open process, conducted in compliance with the National Environmental Policy Act (NEPA), for identifying issues and alternatives to be addressed in an Environmental Impact Statement (EIS) and determining who is interested in the proposed action
  • Begins with publication of a Notice of Intent (NOI) in the Federal Register stating an agency’s intent to prepare an EIS

The U.S. Air Force has published an NOI in the Federal Register to prepare an EIS for the proposed Infrastructure Upgrades at Andersen Air Force Base (AFB), Guam. The U.S. Air Force is the lead agency for the EIS, and the U.S. Navy is a cooperating agency.

What Happens During Public Scoping?

During public scoping, the U.S. Air Force:

  • Provides information about the proposed action and alternatives being considered
  • Corresponds with local and federal stakeholders
  • Conducts public outreach
  • Requests comments

What Role Does the Public Have During Public Scoping?

During public scoping, government agencies, stakeholders, and the public are invited to:

  • Identify issues and concerns, and provide new information, data, and suggestions
  • Request information
  • Participate in public outreach opportunities
  • Submit comments, relevant information, and questions

What Happens After Public Scoping?

After the public scoping period has ended, the U.S. Air Force will:

  • Incorporate public input into the proposal and develop the Draft EIS, which is expected to be completed in late 2021 or early 2022
  • Make the Draft EIS available to the public for review for a minimum of 45 days
  • Incorporate applicable input on the Draft EIS into the development of the Final EIS, which is anticipated in mid to late 2022; a Record of Decision could be signed no sooner than 30 days after the Final EIS is released

Meeting Topic #3 - Proposed Action Overview

Proposed Action Overview

Project Background

  • U.S. Air Force (USAF) and Department of Defense (DoD) strategies and initiatives for the Indo-Pacific are continuously evolving in response to the geopolitical climate.
  • Initiatives and strategies seek to promote an agile defense posture, protection of the nation, and defense of U.S. interests in the region.
  • Operationally relevant infrastructure within the Indo-Pacific allows for USAF and DoD to maintain agile and flexible defense capabilities in accordance with evolving strategies and initiatives.

Purpose of and Need for the Proposed Action

  • Purpose: Enhance Andersen Air Force Base’s (AFB) capability to support permanent and rotational forces within the Indo-Pacific and strengthen the U.S.’s ability to respond regionally and worldwide, in alignment with evolving USAF and DoD initiatives for the region.
  • Need: Meet national security objectives and improve Andersen AFB’s ability to support the mission requirements for permanent and rotational aircraft in the face of evolving global security challenges.Fig2_AndersenAFB_Aerial.jpg

General Description of the Proposed Action 

  • Construction of infrastructure upgrades over the course of 7 years at the North Ramp and Munitions Storage Area-1 (Figure 1). Would provide additional aircraft parking, fueling, maintenance, and munitions storage infrastructure to allow for greater efficiencies and agility in the way ground operations are conducted at Andersen AFB.
  • Designed to accommodate aircraft types and flight operations that have been addressed under previously completed National Environmental Policy Act documentation.

​​​​​​Image: Andersen AFB Project Area

Meeting Topic #4 - Proposed Action and Alternatives

Proposed Action and Alternatives

Proposed Action: North Ramp InfrastructureFigx_NorthRamp_Details.jpg

Approximately 80 acres of paved surfaces; 16 acres of stormwater management infrastructure; and 96 acres that would be cleared, graded, revegetated, and maintained

  • Airfield pavements
  • Aircraft hangar and maintenance facility
  • Flightline maintenance facility and utility building
  • Jet fuel receipt, storage, and distribution system extension
  • Fencing and utilities extension
  • Roadways and parking
  • Stormwater basins

Image: North Ramp Project Details



Proposed Action: Munitions Storage Area-1 Infrastructure

Approximately 1.2 acres of paved surfaces; 0.1 acre of stormwater management infrastructure; and 10.7 acres that would be cleared, revegetated, and maintained

  • Three earth-covered magazines
  • Pavements along utilities corridors
  • Utilities
  • Generator
  • Stormwater basins



Image: MSA-1 Project Details

Alternatives Consideration

The USAF considered other locations on Andersen AFB for construction of infrastructure upgrades; however, only the Proposed Action locations were determined to meet the criteria for the infrastructure upgrades. The No Action Alternative will be analyzed, in addition to the Proposed Action.


Meeting Topic #5 - Impacts Analysis

Impacts Analysis

The following topics will be analyzed in the Environmental Impact Statement (EIS):

Biological Resources

  • Threatened and endangered species
  • Wildlife and vegetation
  • Wetlands and floodplains

Water Resources

  • Water quality (surface water and stormwater)
  • Groundwater aquifers

Cultural Resources

  • Archaeological resources (prehistoric and historic)
  • Historic architectural resources
  • Traditional resources

Social Resources

  • Land use, including coastal zone management
  • Socioeconomics and environmental justice
  • Health and safety

Other Considerations

  • Geology and soils
  • Infrastructure and utilities
  • Noise
  • Air quality
  • Airfield management and aircraft safety
  • Transportation
  • Hazardous materials and waste

Potential Impact Review

The U.S. Air Force (USAF) will conduct cultural and natural resources surveys in the areas proposed for upgrades, and consult with appropriate resource agencies to determine the potential for significant impacts on those resources. During construction, the USAF anticipates an increased demand on the construction workforce and an increase in local spending. Currently, no other short- or long-term notable impacts are anticipated. Additional analysis will be provided in the Draft EIS.

Meeting Topic #6 - Submit Comments

Submit Comments

As a direct result of the National Emergency declared by the President on Friday, March 13, 2020, in response to the coronavirus (COVID-19) pandemic in the U.S. and the Centers for Disease Control and Prevention’s recommendations for social distancing and avoiding large public gatherings, all scoping is being conducted virtually. Virtual public scoping is conducted in accordance with the National Environmental Policy Act and the 2020 version of its implementing regulations at 40 Code of Federal Regulations Part 1506.6.

Through this virtual scoping process, comments, questions, and relevant information are welcomed on the U.S. Air Force’s proposed Infrastructure Upgrades at Andersen Air Force Base. The U.S. Air Force also welcomes comments under Section 106 of the National Historic Preservation Act (36 Code of Federal Regulations Part 800) regarding the identification of or effects on historic properties, and requests to become a consulting party in the Section 106 process. Please submit comments in English using one of the following methods: 

Scoping materials are available on the project website for browsing or download, and in print at the Nieves M. Flores Memorial Library (254 Martyr Street, Hagåtña, Guam). Requests for printed scoping materials may also be made to the addresses above. For printed material requests, the standard U.S. Postal Service shipping timeline will apply. Please consider the environment before requesting printed material.

To ensure the U.S. Air Force has sufficient time to consider public input, please submit all comments by May 30, 2021.


Thank you for your participation in the public scoping process for the
Andersen AFB Infrastructure Upgrades Environmental Impact Statement!