Exhibit F- Army Corp NPR-Letter

DEPARTMENT OF THE ARMY

U.S. ARMY CORPS OF ENGINEERS, CHICAGO DISTRICT

231 SOUTH LA SALLE STREET, SUITE 1500

CHICAGO IL 60604-1437

March 12, 2026
Regulatory Branch (LRC-2014-00775)
SUBJECT: No Permit Required (NPR) Request and Approved Jurisdictional Determination (AJD) for UIP Subproject 1 CUB within Fermi National Accelerator Laboratory, Batavia, Kane County, Illinois (Latitude 41.83921°N, Longitude 88.26705°W) Whitney Begner
U.S. Department of Energy
9800 South Cass Avenue
Lemont, Illinois 60439
Dear Ms. Begner:
The U.S. Army Corps of Engineers, Chicago District, has completed its review of your November 26, 2025 request that the U.S. Army Corps of Engineers issue a No Permit Required (NPR) letter with an approved jurisdictional determination (AJD) for the above-referenced activity. The subject project has been assigned number LRC-201400775. Please reference this number in all future correspondence concerning this project.
Following a review of the aquatic resource delineation report titled, ”Fermi UIP Subproject 1”, dated July 25, 2025, prepared by V3 Companies, and a verification of the information submitted in the report, this office has determined that the subject property contains aquatic resources that are not subject to regulation under the Clean Water Act as well as "waters of the United States" that are under the jurisdiction of this office and therefore, subject to regulation under Section 404 of the Clean Water Act. Specifically, Area 2C and Area 3 were determined to be jurisdictional and Area 1, Area 2A, Area 2B, and Area 4 were determined to be non-jurisdictional.
The jurisdictional determination Memorandum for Record (MFR) decision document for the review area and aquatic resource exhibit are enclosed. This letter is considered an AJD for your subject site. If you object to this determination, you may appeal, according to 33 CFR Part 331. Enclosed you will find a Notification of Administrative Appeal Options and Process (NAO/NAP) and Request for Appeal (RFA) form. If you request to appeal the above determination, you must submit a completed RFA form to the Great Lakes/Ohio River Division Office at the address listed on the form.

-2In order to be accepted, your RFA must be complete, meet the criteria for appeal, and be received by the Division Office within sixty (60) days of the date of the NAO/NAP and RFA form. Should you decide to submit an RFA form, it must be received at the above address by May 11, 2026. If you concur with the determination in this letter,