RS-16-214, Revision to Exelon Generation Company, LLC Fleet Commitment Relating to Maintaining Severe Accident Management Guidelines

Revision to Exelon Generation Company, LLC Fleet Commitment Relating to Maintaining Severe Accident Management Guidelines

ML16302A455
Person / Time
Site:	Clinton
Issue date:	10/28/2016
From:	Kaegi G Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-16-214
Download: ML16302A455 (3)

Text

AdNEW Anuwl Exelon Generation....

HS-1G-P14 October 28, 2.016 U.S. Nuclear Regulatory Cornmissl011 ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461

Subject:

Revision to Exelon Generation Company, LLC Fleet Commitment Relating to Maintaining Severe Accident Management Guidelines

References:

1. Exelon Generation Company, LLC Letter to USNRC, "Exelon Generation Company, LLC Fleet Commitment to Maintain Severe Accident Management Guidelines," dated December 4, 2015 (RS-15-285)

2. Exelon Generation Company, LLC Letter to USN RC, "Certification of Permanent Cessation of Power Operations," dated June 20, 2016 In Reference 1, Exelon Generation Company, LLC (EGC) established commitments for Clinton Power Station, Unit 1 related to Severe Accident Management Guidelines (SAMGs). These guidelines would be used by emergency response personnel during accident conditions that progress beyond the mitigation capabilities described in Emergency Operating Procedures (EOPs). SAMG strategies are intended to arrest the progression of fuel damage, maintain the capability of the containment as long as possible, and minimize radiological releases. In Reference 2, EGC notified the NRC of EGC's plans to permanently shut down Clinton Power Station (CPS), Unit 1 and cease operation no later than June 1, 2017.

This letter notifies the NRC of changes, as described below, to Commitment No. 1 for CPS documented in Enclosure 5 of Reference 1.

Commitment No. 1 was to update the CPS SAMGs to Revision 3 of the BWROG generic severe accident guidelines (published February, 2013) no later than June 30, 2017. Based on the planned permanent cessation of operations at CPS no later than June 1, 2017, the commitment implementation date of June 30, 2017 will not occur. The effort to develop and implement the Revision 3 changes of the BWROG generic severe accident guidelines for CPS, Unit 1 has been discontinued. As a result, the commitment implementation date of June 30, 2017 needs to be changed.

t J.: >. Nuc10,.1- I iec.irrl~rtory C01111111ISsion Octobor 2 8, 2016 I )agofc 2 Allocation of resources to develop SAIVIGs that will not be implemented does not ryiaintain or enhance prolection of the public health and safely. However, if the decision to cease operation of CPS is reversed and CPS continues to operate beyond June 1, 2017, EGC is revising the iMplementation date for Commitment No. 1 as documented in Enclosure 5 of Reference 1, to Decei-Tiber 31, 2017. This will allow sufficient time to complete the development, training, and implementation of the revised SAMGs should CPS continue power operations beyond June 1, 2017.

The revised commitment is provided in the enclosure to this letter, and replaces the existing corresponding referenced commitment for CPS. Revision to the previous commitment is shown in bold.

The revised commitment maintains the intent of the original commitment as described in Reference 1 in the event CPS continues operation beyond June 1, 2017. This commitment change has no impact on nuclear safety or safe plant operations. This commitment has not yet been implemented at CPS and therefore, a notification to the NRC of the commitment change is warranted in accordance with the EGC Commitment Management Program.

This commitment change is being submitted for information only. There are no other new or revised regulatory commitments contained in this letter.

If you have any questions regarding this submittal, please contact Ronald Gaston at (630) 657-3359.

1 declare under penalty of perjury that the foregoing is true and correct. Executed on the 28"'

day of October 2016.

Respectfully submitted, Glen T. Kaegi Director - Licensing & Regulatory Affairs Exelon Generation Company, LLC

Enclosure:

Summary of Revised Regulatory Commitments cc: Regional Administrator - NRC Region III NRC Senior Resident Inspector Clinton Power Station NRC Project Manager, NRR Clinton Power Station Mr. John P. Boska, NRR/JLD/JOMB, NRC Illinois Emergency Management Agency Division of Nuclear Safety

i/xclosuna l`ogo 1 Of 1 Enclosure Clinton PovuerStm1imn, uoIroit 1 Summary of Revised Regulatory Commitments The following table identifies commitments made in 1hisdocurnenL Revision from previous oonnnnitnneniis Shown inbold. (Any other actions discussed in the submittal represent intended urplannedactions. They are described \o the NRC for the NUC'sin(onno\ion and are not COMMITTED COMMITMENT TYPE COMMITMENT DATE OR ONE-- IME ACTION PROGRAMMATIC "OUTAGE11 (Yes/No) (Yes/No)

1. Clinton Power Station, Unit 1 will update the site SAMGs to Revision 3 of the BWROG December 31, generic severe accident guidelines Yes No 2017 (published February, 2013).