F-15EX Eagle II Basing Environmental Assessment

EX Environmental Assessment Public Review Period

Portland F-15EX Eagle II First Operational Combat Squadron Environmental Assessment

The Department of the Air Force (DAF) announces the availability of the Draft Environmental Assessment (EA) and Draft Finding of No Significant Impact (FONSI) for the proposed basing of the F-15EX Eagle II Operational Combat Squadron at Portland Air National Guard (ANG) installation, Portland, Oregon. The DAF has prepared a Draft EA to analyze the potential impacts of recapitalizing its existing F-15C inventory at Portland ANG installation with the newer and more capable F-15EX aircraft.

Recapitalization is the acquisition of the new generation F-15EX aircraft and construction and upgrade of specific facilities for one squadron of F-15EX aircraft to support current and future combat and mission readiness. The squadron would consist of up to 24 F‑15EX aircraft that would replace the existing 20 F-15C aircraft currently based at the installation.

The Draft EA and Draft FONSI are available for public review and comment for 30 calendar days, beginning February 4, 2024. Written comments must be postmarked or emailed no later than 11:59 p.m. Eastern Time (ET) on March 5, 2024, for consideration in the Final EA. The public may submit written comments to:

National Guard Bureau

Attn: Ms. Alicia Treece

3501 Fetchet Ave

Joint Base Andrews, MD 20762-5157

Or emailed to NGB.A4.A4A.NEPA.COMMENTS.Org@us.af.mil with subject ATTN: PORTLAND F-15EX EA.

PLEASE NOTE: Personally Identifiable Information (PII) of individuals who provide comments will be kept confidential and will not be released, unless required by law.

All comments submitted during the public review period will become part of the public record of the EA and will be considered in preparation of the Final EA.

Please see the below tips for submitting effective comments:

  • Substantive comments* that provide detailed information are the most useful.
  • Make comments as specific as possible. Clearly identify your issues and concerns. Support assertions with an explanation that includes facts and references, if possible.
  • Refer to specific page numbers or paragraphs in the document.
  • Submit comments if you find an error in the analysis, need clarification or have new information that could change the analysis and conclusions.
  • There is no minimum or maximum length for an effective comment. Although the comment box below does not have a character restriction, longer comments can be mailed to the address above.

Do not include any PII within the text of your comment (e.g., name, address, social security number, email address, telephone number, etc.).


* Substantive comments are regarded as those comments that challenge the analysis, methodologies, or information in the Draft document as being factually inaccurate or analytically inadequate; identify impacts not analyzed or identify reasonable alternatives or feasible mitigations not considered by the agency; or offer specific information that may have a bearing on the decision such as differences in interpretations of significance, scientific data, or technical conclusions.