ML14093A052

Seismic Hazard and Screening Report (CEUS Sites), Response to NRC 10 CFR 50.54(f) RAI Per 10 CFR 50.54(f) Re Recommendations 2.1, 2.3 and 9.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

ML14093A052
Person / Time
Site:	Catawba
Issue date:	03/31/2014
From:	Henderson K Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML14099A184	List: CNS-14-038, DUKCORP042-PR-001, Seismic Hazard & Screening Report in Response to the 50.54(f) Information Request Re Fukishima Near-Term Task Force Recommendation 2.1 Seismic ML14093A052
References
CNS-14-038
Download: ML14093A052 (4)

Text

Kelvin Henderson DUKE Vice President S )ENERGY, Catawba Nuclear Station Duke Energy CN01VP 1 4800 Concord Road York, SC 29745 o: 803.701.4251 f: 803.701.3221 10 CFR 50.54(f)

CNS-1 4-038 March 31, 2014 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 Duke Energy Carolina, LLC (Duke Energy)

Catawba Nuclear Station, Units 1 and 2 Docket Numbers 50-413 and 50-414 Renewed License Numbers NPF-35 and NPF-52

Subject:

Seismic Hazard and Screening Report (CEUS Sites), Response to NRC 10 CFR 50.54(f) Request for Additional 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

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, ADAMS Accession No. ML12053A340

2. EPRI Report 1025287, Seismic Evaluation Guidance, Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic, ADAMS Accession No. ML12333A170

3. NRC Letter, Endorsement of EPRI Final Draft Report 1025287, "Seismic Evaluation Guidance," dated February 15, 2013, ADAMS Accession No. ML12319A074

4. NEI Letter, Proposed Path Forward for NTTF Recommendation 2.1: Seismic Reevaluations, dated April 9, 2013, ADAMS Accession No. ML13101A379

5. NRC Letter, Electric Power Research Institute Final Draft Report XXXXOX, "Seismic Evaluation Guidance: Augmented Approach for the Resolution of Near-Term Task Force Recommendation 2.1: Seismic, "as an Acceptable Alternative to the March 12, 2012, Information Request for Seismic Reevaluations, dated May 7, 2013, ADAMS Accession No. ML13106A331

United States Nuclear Regulatory Commission Page 2 March 31, 2014 Ladies and Gentlemen:

On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status. Enclosure 1 of Reference 1 requested each addressee located in the Central and Eastern United States (CEUS) to submit a Seismic Hazard Evaluation and Screening Report within 1.5 years from the date of Reference 1.

Industry guidance and detailed information to be included in the Seismic Hazard Evaluation and Screening Report submittals is provided by Reference 2. The industry guidance was endorsed by the NRC in a letter dated February 15, 2013, (Reference 3). provides the Seismic Hazard Evaluation and Screening Report for Catawba Nuclear Station as directed by Section 4 of Reference 2 and in accordance with the schedule provided in Reference 4.

The Nuclear Energy Institute (NEI) submitted Reference 4 requesting NRC agreement to delay submittal of the CEUS Seismic Hazard Evaluation and Screening Report so that an update to the Electric Power Research Institute (EPRI) ground motion attenuation model could be completed and used to develop that information. NEI proposed that descriptions of subsurface materials and properties and base case velocity profiles be submitted to the NRC by September 12, 2013, with the remaining seismic hazard and screening information submitted by March 31, 2014.

In addition, an expedited seismic evaluation will be performed. By Reference 5, NRC endorsed Electrical Power Research Institute (EPRI) Report, "Seismic Evaluation Guidance: Augmented Approach for the Resolution of Fukushima Near-term Task Force Recommendation 2.1-Seismic". The EPRI Guidance provides additional guidance on the performance of an expedited seismic evaluation. The expedited seismic evaluation process is a screening, evaluation and equipment modification process to provide additional seismic margin and plant safety enhancements for certain core and containment cooling components while a more detailed and comprehensive plant seismic risk evaluations are being performed. The expedited seismic evaluation will be submitted no later than December 31, 2014 and complete non-outage related equipment modifications by December 31, 2016.

There are no regulatory commitments associated with this letter.

Should you have any questions concerning this letter or require additional information, please contact Phil Barrett at (803) 701-4138.

United States Nuclear Regulatory Commission Page 3 March 31, 2014 I declare under penalty of perjury that the foregoing is true and correct. Executed on March 31, 2014.

Sincerely, Kelvin Henderson Vice President, Catawba Nuclear Station - Seismic Hazard Evaluation and Screening Report

United States Nuclear Regulatory Commission Page 4 March 31, 2014 xc:

V.M. McCree, Regional Administrator U. S. Nuclear Regulatory Commission, Region II Marquis One Tower 245 Peachtree Center Avenue NE, Suite 1200 Atlanta, GA 30303-1257 Eric J. Leeds, Director, Office of Nuclear Reactor Regulation US. Nuclear Regulatory Commission One White Flint North, Mailstop 13-HI6M 11555 Rockville Pike Rockville, MD 20852-2738 G. E. Miller U.S. Nuclear Regulatory Commission One White Flint North, Mailstop 8 G9A 11555 Rockville Pike Rockville, MD 20852-2738 G.A. Hutto NRC Senior Resident Catawba Nuclear Station Justin Folkwein American Nuclear Insurers 95 Glastonbury Blvd., Suite 300 Glastonbury, CT 06033-4453