SVP-15-052, Submittal of Regulatory Commitment Change Summary Report

Submittal of Regulatory Commitment Change Summary Report

ML15201A066
Person / Time
Site:	Quad Cities
Issue date:	07/08/2015
From:	Darin S Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
SVP-15-052
Download: ML15201A066 (3)

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QCNPS Regulatory Commitment Change Summary Report June 1, 2014 - May 31, 2015 Commitment Change Tracking Number: 15-01 Source Document: Dresden/Quad Cities License Renewal Application, Appendix A, Section A.1.2, and Appendix B, Section B.1.2 Change Approved On: 1/28/2015 Original Commitment Description In the application for the renewed Operating License (per 10 CFR 54) Exelon made commitments to EPRI reference documents in System Chemistry Procedures, which have been maintained in implementing procedure revisions or subsequent procedures. The commitments have been evaluated against "BWRVIP-190: BWR Vessel and Internals Project, BWR Water Chemistry Guidelines-2008 Revision". The most recent guideline, BWRVIP-190: BWR Vessel and Internals Project, BWR Water Chemistry Guidelines-2008 Revision, TR 1016579 has been issued to the industry and incorporated into the system chemistry control procedures. The BWR Water Chemistry Guidelines Committee and the Mitigation Committee of the BWR Vessel and Internals Program (BWRVIP) prepared this document to provide proactive water chemistry guidance for mitigating IGSCC, maintaining fuel integrity, and controlling radiation fields. The BWR Water Chemistry Guidelines continues to focus on intergranular stress corrosion cracking (IGSCC), which can limit the service life of susceptible materials and components in boiling water reactor (BWR) water environments. The guidelines also place increased emphasis on fuel performance concerns toward meeting the industry goal of zero fuel failures. Many plants have adopted noble metal chemical application (NMCA), and recently On-line NobleChemTM (OLNC) is being demonstrated and applied.

This document addresses issues with IGSCC mitigation, fuel performance, and radiation fields, aligned with the radiation protection RP2020 initiative. The water chemistry program for boiling water reactors (BWRs) relies on monitoring and control of reactor water chemistry based on industry guidelines such as the boiling water reactor vessel and internals project (BWRVIP)-29 (Electric Power Research Institute [EPRI] TR-103515) or later revisions.

Revised Commitment Description Commitments to EPRI reference documents in System Chemistry Procedures were made in the application for the renewed Operating License per 10 CFR 54 and will be carried forward into new implementing procedure revisions or subsequent procedures. The commitments have been evaluated against "BWRVIP-190: BWR Vessel and Internals Project, BWR Water Chemistry Guidelines-Revision 1" (Technical Report 3002002623).

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QCNPS Regulatory Commitment Change Summary Report June 1,2014- May 31, 2015 Justification For Revision BWRVIP-190: BWR Vessel and Internals Project, BWR Water Chemistry Guidelines- Revision I represents the latest industry experience, knowledge, and strategy in the management of reactor water, ancillary and support systems chemistry.

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