ML26090A166

Ltr to Tom Jonathan, Chief, Tuscarora Nation, Section 106 CCEC

ML26090A166
Person / Time
Site:	Crane
Issue date:	03/31/2026
From:	Stephen Koenick NRC/NMSS/DREFS/ETRB1
To:	Jonathan T Tuscarora Nation
References
EPID L-2025-LNE-0008
Download: ML26090A166 (0)

Text

Tom Jonathan, Chief Tuscarora Nation 5226 Walmore Road Lewistown, NY 14092

SUBJECT:

ADDITIONAL AREA OF POTENTIAL EFFECTS MAPS FOR THE REAUTHORIZATION OF POWER OPERATIONS AT CHRISTOPHER M.

CRANE CLEAN ENERGY CENTER SECTION 106 REVIEW (EPID NUMBER:

L-2025-LNE-0008) (DOCKET NUMBER: 50-289)

Dear Chief Tom Jonathan:

As discussed in our letter dated February 2, 2026 (Agencywide Documents Access and Management System Accession No. ML26050A079), the U.S. Nuclear Regulatory Commission (NRC) staff is conducting an environmental review for a series of licensing and regulatory requests submitted by Constellation Energy Generation, LLC that seek NRC approvals to reauthorize power operations at the Christopher M. Crane Clean Energy Center (CCEC)

(formerly Three Mile Island Nuclear Station, Unit 1). These requests include an exemption request and a series of license amendment requests. The CCEC is located on Three Mile Island within the Susquehanna River in Londonderry Township, Dauphin County, Pennsylvania, approximately 10 miles southeast of Harrisburg, Pennsylvania.

The NRC is serving as the lead Federal agency under the National Environmental Policy Act of 1969, as amended (NEPA) and Section 106 consultation under the National Historic Preservation Act of 1966, as amended (NHPA). The NRC is using the NEPA process to comply with Section 106 of the NHPA in accordance with Title 36 of the Code of Federal Regulations Part 800, Protection of Historic Properties, Section 800.8(c).

The purpose of this letter is to notify your office of the additional Area of Potential Effects (APE) maps for the CCEC as part of the NRCs Section 106 review. As noted in our February 2, 2026 letter, the NRC has defined the APE for this undertaking as the entire CCEC site (Three Mile Island) and the affiliated training center. The APE also includes a onemile buffer around the CCEC site boundary to account for potential impacts to offsite historic and cultural resources and historic properties. In addition to the maps previously transmitted, the NRC is providing two additional APE maps identifying the locations of structures at the CCEC site (Enclosures 1 and 2).

The NRC plans to issue a draft environmental assessment (EA) for consulting party and public review and comment in June 2026. The EA will include identification of historic and cultural resources and historic properties, an analysis of potential effects of the proposed actions, including potential effects on historic and cultural resources and historic properties as well as the NRC staffs preliminary determinations. A copy of the draft EA will be made available for your review and comment.

March 31, 2026

T. Jonathan 2

If you have any questions regarding the NRCs Section 106 consultation or environmental review, please contact Jennifer Davis, Archaeologist at 301-415-3835 or via email at Jennifer.Davis@nrc.gov; or the Environmental Project Manager, Kevin Folk, at 301-415-6944 or via email at Kevin.Folk@nrc.gov.

Sincerely, Stephen Koenick, Acting Chief Environmental Technical Review Branch 1 Division of Rulemaking, Environmental, and Financial Support Office of Nuclear Material Safety and Safeguards Docket No. 50-289

Enclosures:

As stated cc: GovDelivery Bryan Printup, Representative bprintup@hetf.org Signed by Koenick, Stephen on 03/31/26

T. Jonathan 3

SUBJECT:

ADDITIONAL AREA OF POTENTIAL EFFECTS MAPS FOR THE REAUTHORIZATION OF POWER OPERATIONS AT CHRISTOPHER M.

CRANE CLEAN ENERGY CENTER SECTION 106 REVIEW (EPID NUMBER:

L-2025-LNE-0008) (DOCKET NUMBER: 50-289)

DATED:

DISTRIBUTION:

PUBLIC RidsNrrDorl RidsNrrDorlLpl3 RidsNrrPMCraneCleanEnergyCenter RidsNmssRefs Resource RidsRgn1MailCenter RidsOgcMailCenter S. Burnell, HQ/OPA C. Wolf, OCA S. Makor, OEDO C. Conrad, PNNL (Cyler.N.Conrad@pnnl.gov)

A. Williamson, DOE (Alicia.Williamson@hq.doe.gov)

ADAMS Package Accession No. ML26085A065; Letter: ML26090A166 Enclosure 1: ML26085A042 Enclosure 2: ML26085A043 e-Concurrence: 20260326-70022 March 31, 2026