IR 05000454/2016006

Annual Assessment Letter for Byron Station Units 1 and 2 (Report 05000454/2016006 and 05000455/2016006)

ML17054D069
Person / Time
Site:	Byron
Issue date:	03/01/2017
From:	Eric Duncan Region 3 Branch 3
To:	Bryan Hanson Exelon Generation Co, Exelon Nuclear
References
IR 2016006
Download: ML17054D069 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION III 2443 WARRENVILLE RD. SUIT E 210 LISLE, IL 60532

-4352 March 1, 2017 Mr. Bryan Senior VP, Exelon Generation Company, LLC President and CNO, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 SUBJECT: ANNUAL ASSESSMENT LETTER FOR BYRON STATION UNITS 1 AND 2 (REPORT 05000 454/20 16 00 6 AND 05000 455/20 16 00 6)

Dear Mr. Hanson:

The NRC has completed its end

-of-cycle performance assessment of Byron Units 1 and 2

, reviewing performance indicators (PIs)

, inspection results

, and enforcement actions from January 1, 20 16 , through December 31, 20 16. This letter informs you of the NRC's assessment of your facility during this period and its plans for future inspections at your facility. The NRC concluded that overall performance at your facility preserved public health and safety.

The NRC determined the performance at Byron Units 1 and 2 during the most recent quarter was within the Licensee Response Column, the highest performance category of the NRC

's Reactor Oversight Process (ROP) Action Matrix

, because all inspection findings had very low safety significance (i.e., Green), and all PIs were within the expected range (i.e., Green). Therefore, the NRC plans to conduct ROP baseline inspections at your facility.

The enclosed inspection plan lists the inspections scheduled through December 31

, 20 18. The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issues. Routine inspections performed by resident inspectors are not included in the inspection plan. The inspections listed during the last twelve months of the inspection plan are tentative and may be revised. The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any changes.

This inspection plan does not include the plan for security-related inspections, which will be sent via separate, non

-publicly available correspondence. In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRC

's "Rules of Practice," a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading

-rm/adams.html (the Public Electronic Reading Room).

Please contact me at 630-829-9620 with any questions you have regarding this letter.

Sincerely,

/RA/

Eric Duncan, Chief Branch 3 Division of Reactor Projects Docket Nos.

50-454; 50-455 License Nos.

NPF-37; NPF-66 Enclosure:

Inspection Plan cc: Distribution via LISTSERV