ML26054A060
| ML26054A060 | |
| Person / Time | |
|---|---|
| Site: | U.S. Geological Survey |
| Issue date: | 02/23/2026 |
| From: | Dawn Powell US Dept of Interior, Geological Survey (USGS), US Dept of Interior, Rocky Mountain Region, Denver Federal Center |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| Download: ML26054A060 (0) | |
Text
U.S. GEOLOGICAL SURVEY Rocky Mountain Region Box 25046 M.S. 974 Denver Federal Center Denver, Colorado 80225 USGS - Facility License R-113 - Docket Number 50-274 Page 1 of 2 Document Date: 2026-02-23 DATE:
Monday, February 23, 2026 TO:
Attn: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 FROM:
Dean Powell, Acting NRC Level 2 Official
SUBJECT:
U.S. Geological Survey TRIGA Reactor - Reactor Administrator Change PURPOSE By way of this letter, the U.S. Geological Survey TRIGA Reactor (GSTR) is informing the U. S. Nuclear Regulatory Commission of a change of the person assigned the role of Reactor Administrator (Level 1) for the GSTR.
BACKGROUND In accordance with the USGS Technical Specifications part 6.7.2, upon permanent changes in facility organization involving Level 1 or Level 2 personnel, it is required of the licensee to officially notify the U. S. NRC within 30 days via written report.
DISCUSSION Ms. Shannon Mahan has resigned her position as the Reactor Administrator to prepare for her retirement from the USGS. As of February 10th, 2026, Rocky Mountain Regional Director Peter Griffiths has been named interim acting Reactor Administrator. Please address all future correspondence for the Reactor Administrator to Mr.
Griffiths at:
Peter Griffiths U.S. Geological Survey, MS 911 Denver Federal Center Lakewood, CO 80255-0046 Office: 303-396-5296 Email: pggriffi@usgs.gov EUSGS science for a changing world
U.S.G.S. TRIGA Reactor Change in Reactor Administrator USGS - Facility License R-113 - Docket Number 50-274 Page 2 of 2 Document Date: 2026-02-23 CONTACT If you have any questions regarding this matter, please contact me at (303) 236-4726.
I declare under penalty of perjury that the foregoing is true and correct.
Sincerely, Dean Powell, Acting NRC Level 2 Official Copied to:
Shannon Mahan, Outgoing Reactor Administrator, USGS Peter Griffiths, Incoming Interim Reactor Administrator, USGS Brooke Gallagher, Project Manager, US NRC Jonathan Braisted, Inspector, US NRC Attachments: None.
DEAN POWELL Digitally signed by DEAN POWELL Date: 2026.02.23 08:00:14 -07'00'