ML15079A430

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Enclosure 4: Summary of Regulatory Commitments
ML15079A430
Person / Time
Site: Ginna Constellation icon.png
Issue date: 03/11/2015
From:
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML15072A008 List:
References
RS-15-069
Download: ML15079A430 (2)


Text

Enclosure 4

SUMMARY

OF REGULATORY COMMITMENTS The following table identifies commitments made in this document. (Any other actions discussed in the submittal represent intended or planned actions. They are described to the NRC for the NRC's information and are not regulatory commitments.)

COMMITTED COMMITMENT TYPE COMMITMENT DATE OR One-Time Action Programmatic "OUTAGE" (Yes/No) (YeslNo)

The Ginna design basis flood does not March 12, 2017 Yes No bound the reevaluated hazard for all flood-causing mechanisms and combined-effect floods. Specifically, local intense precipitation, probable maximum flooding in streams and rivers, and combined-effect flood combinations H.1 and H.4.2 were not bounded by the design basis flood hazard. Therefore, Ginna plans to prepare a full Integrated Assessment (Scenario 4).

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Enclosure 4: Ginna - Flood Hazard Reevaluation Report Interim Action Commitments*

("Commitments" are bolded header columns)

Commitment Commitment Interim Actions Taken or Planned to Take Implementation Type Type Item Interim in tae RePlato Te Report Additional Date Number as Included in the Reevaluation Report Reference Information (Committed* One-Time Programmatic*

(Commitment*) Date or Outage) Action*

(Yes/No) (Yes/No) 1 Provided for Aquafence installation in the Report Provides Complete Yes No Turbine Building around the Battery Rooms Cover Letter protection and Diesel Generator Rooms to increase Section d. from PMF and flood protection height. Aquafence is a combined-portable barrier system that is installed prior effects floods to an impending flood per GMM-23 FLOODBARRIER, "Flood Barrier Installation and Removal in Turbine Building Basement" (Reference (14)).

2. Revised ER-SC.2, "High Water (Flood) Plan," Report Provides Complete Yes No (Reference (15)) to shutdown prior to an Cover Letter protection impending flood (Level 2 flood condition), and Section d. from PMF and install flood barriers in the Auxiliary Building combined-ground level doorways. effects floods
3. Purchased dewatering pumps to remove Report Provides Complete Yes No water from structures. Dewatering pumps are Cover Letter protection staged in the Auxiliary Building and inside the Section d. from PMF and Aquafence barriers at Level 1 flood condition combined-per ER-SC.2. effects floods
4. Reinforce the Auxiliary Building Block Wall to Report Provides June 30, 2016 Yes No protect safe-shutdown equipment in the Cover Letter protection Auxiliary Building from the new flood height. Section d. from PMF and combined-effects floods Page 2 of 2