L-2013-256, Florida Power & Light Co'S, Turkey Point Units 3 & 4, Supplemental Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Re Flooding Aspects of Recommendation 2.1 of Near-Term Task Force Review of Insights from Fukushima Dai

Florida Power & Light Co'S, Turkey Point Units 3 & 4, Supplemental Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Re Flooding Aspects of Recommendation 2.1 of Near-Term Task Force Review of Insights from Fukushima Dai-i

ML13248A312
Person / Time
Site:	Turkey Point
Issue date:	08/22/2013
From:	Kiley M Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2013-256
Download: ML13248A312 (5)

Text

0 PL IFPL.

August 22, 2013 L-2013- 256 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001 Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Florida Power and Light Company's, Turkey Point Units 3 and 4, Supplemental Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

References:

1. NRC Letter, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, dated March 12, 2012

2. FPL Letter, L-2013-087, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flood Hazard Reevaluation of Recommendation 2.1, dated March 11, 2013 On March 12, 2012, the NRC issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status. Enclosure 2 of Reference 1 requested that each licensee perform a reevaluation of external flooding sources and report the results in accordance with the NRC's prioritization plan.

FPL submitted the Flood Hazard Reevaluation for Turkey Point Units 3 and 4 in Reference 2.

Reference 2 contains interim actions that FPL has taken to address higher flooding hazards relative to the design basis until the integrated assessment is completed.

Submitted herein is a Table with the interim actions associated with the NTTF Recommendation 2.1 Flood Hazard Reevaluation Report contained in Reference 2. The enclosed Table provides a list of the interim actions taken and their completion dates as contained in Reference 2, along with additional supporting actions and associated implementation dates. FPL commits to notify in advance the Turkey Point Units 3 and 4 NRC Project Manager, if any of the interim actions or implementation dates will be modified.

This letter includes additional and reconfirms existing regulatory commitments.

Florida Power & Light Company 9760 S.W. 3444"' Street Homestead, FL 33035

Turkey Point Units 3 and Unit 4 L-2013-256 Docket No. 50-250 and 50-251 Page 2 of 2 Should you have any questions concerning the content of this letter, please contact Mr. Robert J.

Tomonto, Turkey Point Licensing Manager, at 305-246-7327.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on Auguste,,4, 2013.

Sincerely, Michael Kiley Enclosure cc: USNRC Regional Administrator, Region II USNRC Project Manager, Turkey Point Nuclear Plant USNRC Senior Resident Inspector, Turkey Point Nuclear Plant

L-2013-256, Enclosure Page 1 of 3 Turkey Point Units 3 and 4 Flood Hazard Reevaluation Interim Action Commitments Item Number Interim Actions Taken or Planned to TImplementation Take as Included in the Reevaluation Report Additional Actions Im Date NumberReport Reference I For scenario B (severe hurricane 6.1 Local 1. Acquired and pre-staged two additional Completed as of preparations) additional pumping capacity Intense pumps. August 1, 2013 will be added in the CCW Pump area. Precipitation, Page 75 2. Revise Hurricane Season Readiness Completed as of procedure (0-ADM-1 16) to direct August 1, 2013 installation of the two additional pumps.

3. Add two new pumps to the Preventative December 31, 2013 Maintenance (PM) task to verify the continued availability of interim pumps and their condition as part of hurricane season preparedness.

4. Train affected personnel on the revised 0- September 23, 2013 ADM- 116 procedure with respect to the additional pumps.

5. Verify refueling strategies are adequate September 23, 2013 for the additional pumps for duration of the LIP event.

6. Validate operations/maintenance action September 23, 2013 timeline and resource for operation of the pumps.

L-2013-256, Enclosure Page 2 of 3 Turkey Point Units 3 and 4 Flood Hazard Reevaluation Interim Action Commitments Item Interim Actions Taken or Planned to Implementation Number Take as IncludedRemoer in the Reevaluation Report Reference Report Additional Actions Dt Date 2 Repair of specific manhole covers needing 6.4 Storm 1. The manholes affected by the higher Completed as of sealant, or replacement of gaskets. Surge, calculated flood levels have been August 1, 2013 Page 75 sealed.

2. Develop a PM to perform a yearly December 31, 2013 inspection to assess the condition of seals and gaskets prior to hurricane season.

3 Stoplogs on East side of plant to be 6.10 1. Engineering evaluation has determined Completed as of reinforced to withstand hydrostatic, Hydrostatic that the stoplogs on the East side of the August 22, 2013 hydrodynamic, waterborne projectile and and plant are protected from large waterborne debris loading. Hydrodynamic projectiles and debris by intervening Loads structures. In addition, calculations show Page 77 the stop logs have adequate structural capacity to resist 6.11 hydrostatic/hydrodynamic forces.

Waterborne Projectiles and 2. Revise the Hurricane Season Readiness Completed as of Debris loads, procedure (0-ADM- 116) to direct August 1, 2013 Page 77 installation of concrete barriers as a defense-in-depth measure for the stoplogs on the East side of plant.

L-2013-256, Enclosure Page 3 of 3 Turkey Point Units 3 and 4 Flood Hazard Reevaluation Interim Action Commitments Item Interim Actions Taken or Planned to Implementation Number Number Take as Included in the Reevaluation ReotReference Report Additional Actions AdiinlAtosDate Date Report

3. Affected personnel will be trained on the September 23, 2013 revised procedure 0-ADM- 116 with respect to the installation of the concrete barriers

4. Validate adequate numbers of concrete Completed as of barriers are readily available on site and August 1, 2013 have been dedicated for flood protection.

5. Develop a PM to verify the continued December 31, 2013 availability and condition of the concrete barriers prior to hurricane season.

6. Validate action timeline for installation of September 23, 2013 concrete barriers.