NLS2016053, Nebraska Public Power District'S Spent Fuel Pool Evaluation Report - Response to Nuclear Regulatory Commission Request for Information

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Nebraska Public Power District'S Spent Fuel Pool Evaluation Report - Response to Nuclear Regulatory Commission Request for Information
ML16272A253
Person / Time
Site: Cooper Entergy icon.png
Issue date: 09/14/2016
From: Limpias O
Nebraska Public Power District (NPPD)
To:
Document Control Desk, Office of Nuclear Reactor Regulation
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ML16272A263 List:
References
NLS2016053
Download: ML16272A253 (11)
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H Nebraska Public Power District Always there when you need us NLS2016053 September 14, 2016 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

Subject:

Nebraska Public Power District's Spent Fuel Pool Evaluation Report - Response to Nuclear Regulatory Commission Request for Information Pursuant to 10 CPR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident Cooper Nuclear Station, Docket No. 50-298, DPR-46

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. NRC letter, "Final Determination of Licensee Seismic Probabilistic Risk Assessments Under the Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendation.2.1 "Seismic" of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," dated October 27, 2015
3. NEI letter, "Request for Endorsement of Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation (EPRI 3002007148)," dated February 23, 2016
4. EPRI 3002007148, "Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation," dated February 2016
5. NRC letter, "Endorsement of Electric Power Research Institute Report 3002007148, Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation," dated March 17, 2016
6. EPRI 1025287, "Seismic Evaluation Guidance - Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic," February 2013 COOPER NUCLEAR STATION P.O. Box 98 /Brownville, NE 68327-0098 Telephone: (402) 825-3811 /Fax: (402) 825-5211 www.nppd.com
  • NLS2016053 Page 2 of3

Dear Sir or Madam:

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, Item (9), of Reference 1 requested addressees to provide limited scope spent fuel pool (SFP) evaluations. By letter dated October-27, 2015 (Reference 2), the NRC transmitted final seismic information request tables which identified that Nebraska Public Power District is to conduct a limited scope SFP evaluation for Cooper Nuclear Station (CNS). By Reference 3, Nuclear Energy Institute (NEI) submitted an Electric Power Research Institute (EPRI) report entitled, Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation (EPRI 3002007148)

(Reference 4) for NRC review and endorsement. NRC endorsement of the EPRI report was provided in Reference 5.

EPRI 3002007148 provides criteria for evaluating the seismic adequacy of a SFP to the reevaluated ground motion response spectrum (GMRS) hazard levels. This report supplements the guidance in the Seismic Evaluation Guidance - Screening, Prioritization and Implementation Details (SPID) (Reference 6), for plants where the GMRS peak spectral acceleration is less than or equal to Q.~g. Sec~ion 33 of EPRI 3002007148 lists tl}e param~ters to be verified to confirm that the results of the report are applicable to CNS, and that the SFP is seismically adequate in accordance with Near Term Task Force 2.1 Seismic evaluation criteria.

The enclosure to this letter provides the data for CNS that confirms applicability of EPRI 3002007148 criteria, confirms that the SFP is seismically adequate, and provides the requested information in response to Reference 1.

There are no new regulatory commitments and no revisions to existing regulatory commitments contained in this letter. Should you have any questions or if additional information is required, please contact Jim Shaw, Licensing Manager, at (402) 825-2788.

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

car A. Limpias Vice President - Nuclear and Chief Nuclear Officer

/bk

Enclosure:

Cooper Nuclear Station - Spent Fuel Pool Evaluation for Fukushima R2. l

NLS2016053 Page 3 of3 cc: Regional Administrator, w/ enclosure USNRC - Region IV Director, w/ enclosure USNRC - Office of Nuclear Reactor Regulation Cooper Project Manager, w/ enclosure USNRC - NRR Plant Licensing Branch IV-2 Senior Resident Inspector, w/ enclosure USNRC-CNS CNS Records, w/ enclosure NPG Distribution, w/o enclosure

NLS2016053 Enclosure ENCLOSURE Cooper Nuclear Station- Spent Fuel Pool Evaluation for Fukushima R2.1

  • Entergy NUCLEAR MANAGEMENT QUALITY RELATED 3-EN-DC-147 I REV. 5C1 INFORMATIONAL USE MANUAL Engineering Reports ATTACHMENT 9.1 ENGINEERING REPORT COVER SHEET & INSTRUCTIONS 5HEET1 OF2 Engineering Report No. __E_R_2_0_1_6_-0_2..;._9_ Rev 0 Page 1 of 7 Engineering Report Cover Sheet Engineering Report

Title:

Spent Fuel Pool Evaluation for Fukushima R2.l Engineering Report Type: (3)

New ~ Revision D Cancelled D Superseded D Superseded by:

(6)

ECR No. NA EC No. EC 16-039 (4) Report Origin: D CNS IZ! Vendor Vendor Document No.: 16C4384-RPT-003 IZ!

(5p~~Yes No Preparedby: _ _ _ _ _ _ _ _D_er_ek_H_e_lm_i_c_k_ _ _ _ _ _ __ Date: 8/1/2016

~ /~~onsible Engineer (Print Name/Sign)

Design Verified: _ _/--'fl/

J--'/i'/I

_________________ Date:

.i=~~*fier (ifrequired) (Print Name/Sign)

Date: 6121201~

iewer (Print Name/Sign)

Approved by: a~l/veJle:~~ Date: '25-lf-/b Supervisor I Manager (Prit1tNaIIle/Si)

  • Entergy NUCLEAR MANAGEMENT QUALITY RELATED 3-EN-DC-147 I REV. 5C1 INFORMATIONAL USE MANUAL Engineering Reports TABLE OF CONTENTS COVER SHEET ........................................................................................................... 1 TABLE OF CONTENTS .............................................................................................. 2 RECORD OF REVISION ............................................................................................. 3 SCOPE AND OBJECTIVE .......................................................................................... 4 DESIGN INPUTS ......................................................................................................... 4 ASSUMPTIONS ....*.........**................................................*....................*.................... 4 DETAILED DISCUSSION ........................................................................................... 4 CONCLUSIONS AND RECOMMENDATIONS ................*.......................................... 5 REFERENCES ..........................................................*..*.............................................* 6 ATTACHMENTS ...................................................*..................................................... 7 ER2016-029 Body Page 2 of7

~Entergy NUCLEAR MANAGEMENT MANUAL QUALITY RELATED INFORMATIONAL USE 3-EN-DC-147 I REV. 5C1 Engineering Reports Revision Record of Revision Initial issue.

0 ER 2016-029 Body Page 3 of7

~Entergy NUCLEAR MANAGEMENT MANUAL QUALITY RELATED INFORMATIONAL Use 3-EN-DC-147 I REV. 5C1 Engineering Reports Scope and Objective In responding to the Fukushima Near-Term Task Force Recommendation 2.1 Seismic; Cooper Nuclear Station (CNS) contracted Stevenson & Associates (S&A) as a subject matter expert to develop the Spent Fuel Pool Evaluation Report in accordance with Electrical Power Research Institute (EPRI) "Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation" (Reference 4).

This Engineering Report will review and accept the Spent Fuel Pool Evaluation Report prepared by Stevenson & Associates.

Design Inputs Design Inputs are stated in the body of S&A Report.

Assumptions None not stated in the body of the vendor report.

Detailed Discussion On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued a Request for Information per 10 CFR 50.54(f) (Reference 1) to all power reactor licensees. Enclosure 1, Item (9) of the 50.54(f) letter requested addressees to provide limited scope spent fuel pool (SFP) evaluations. By letter dated October 27, 2015 (Reference 2), the NRC transmitted final seismic information request tables which identified that Cooper Nuclear Station is to conduct a limited scope SFP Evaluation. By Reference 3, Nuclear Energy Institute (NEI) submitted an Electric Power Research Institute (EPRI) report entitled, Seismic Evaluation Guidance Spent Fuel Pool lnt~grity Evaluation (EPRI 3002007148) (Reference 4) for NRC review and endorsement NRC endorsement was provided by Reference 5.

EPRI 3002007148 prqvjde~ criteria_ for eval_uating the seismic adequacy of a SFP to the reevaluated ground motion response spectrum (GMRS) hazard levels. This report supplements the guidance in the Seismic Evaluation Guidance, Screening, Prioritization and Implementation Details (SPID) (Reference 8), for plants where the GMRS peak spectral acceleration is less than or equal to 0.8g. Section 3.3 of EPRI 3002007148 lists the parameters to be verified to confirm that the results of the report are applicable to Cooper Nuclear Station, and that the SFP is seismically adequate in accordance with NTTF 2.1 Seismic evaluation criteria.

The evaluation performed in Section 5 of the vendor report (Attachment 1) provides the data for Cooper'Nuclea-rstation that confirms applicability of the EPRI 3002007148 criteria, confirms that the SFP is seismically adequate, and provides the requested information in ER2016-029 Body Page4 of7

9Entergy NUCLEAR MANAGEMENT QUALITY RELATED 3-EN-DC-147 I REV. 5C1 INFORMATIONAL Use MANUAL Engineering Reports response to Item (9) of the 50.54 (f) letter associated with NTTF Recommendation 2.1 Seismic evaluation criteria.

Conclusions and Recommendations The Cooper Nuclear Station SFP in its current configuration is seismically adequate based on all criteria identified in Section 3.3 of Reference 4 being satisfied per the requirements of the guidance. The methodology presented in the guidance has been accepted by the NRC per Reference 5. No vulnerabilities have been identified.

Stevenson and Associates Report 16C4384-RPT-003 is acceptable for use at CNS.

ER 2016-029 Body Page 5 of?

II\ NUCLEAR QUALITY RELATED 3-EN-DC-147 I REV. 5C1

~Entergy MANAGEMENT INFORMATIONAL Use MANUAL Engineering Reports 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 FukushimaDai-ichi Accident", dated March 12, 2012 ADAMS Accession Number ML12053A340 (Letter) ML12056A046 (Pkg) 2 NRC Letter, "Final Determination of Licensee Seismic Probabilistic Risk Assessments Under the Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)

Regarding Recommendation 2.1 "Seismic" of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident", dated October27, 2015, ADAMS Accession Number ML15194A015 3 NEI Letter, "Request for Endorsement of Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation (EPRI 3002007148)", dated February 23, 2016, ADAMS Accession Number ML 160SSA017 4 EPRI 3002007148, "Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation",

February 2016 s NRC Letter, "Endorsement of Electric Power Research Institute Report 3002007148, Seismic Evaluation Guidance: Spent Fuel Pool Integrity Evaluation", dated March 17, 2016, ADAMS Accession Number ML 153SOA158 6 Seismic Hazard Evaluation and Screening Report for Cooper Nuc;:lear Station, March 31, 2014, ADAMS Accession Number ML14094A042 7 Cooper Nuclear Station - Staff Assessment of Information provided Pursuant to Title 10 of the Code of Federal Regulations Part SO, Section 50.S4(f), Seismic Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima DAl-ICHI Accident (TAC NO. MF3734), dated September 8, 201S, ADAMS Accession Number ML 1S240A030 8 EP~l _19??_~~!. *~~~J_s_ITlic_ ~'{~_lu~_~O_f! ~u[q~_Q~_e_,_~~re~!:!]f!g~fri9ritiz_9tion and Implementation Details [SPID] for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1:

Seismic", February 2013 9 Cooper Nuclear Station, "Updated Safety Analysis Report", December 14, 201 S 10 Cooper Nuclear Station drawings:

2030 Sh. 1 Rev. N33, Flow Diagram - Fuel Pool Cooling and Clean-Up System 2038 Sh. 1 Rev. NS4, Flow Diagram - Reactor Building Floor & Roof Drain Systems 4228 Rev. N01, Structural- Reactor Building - Fuel Storage Pool Plan & Elevations 4230 Sh. 1 Rev. 14 Structural - Reactor Building - Misc. Pool Sections and Dets.

2706-1 Rev. NOS, 8" FC-1S to Fuel Storage Pool 2707-6 Rev. 8, 4" FC-2 to Skimmer Surge Tank 1-A From Fuel Storage Pool 2707-7 Rev. 9, 4" FC-2 From Fuel Storage Pool to Skimmer Surge Tank 1-8 X2709-210 Rev. 1, FDR-2 Radioactive Floor Drains 2066 Rev. NOS, General Arrangement - Reactor Building- Section 8-8 11 CED 6036741, Reliable Spent Fuel Pool Level Instrumentation ER 2016-029 Body Page6 of7

~Entergy NUCLEAR MANAGEMENT MANUAL QUALITY RELATED INFORMATIONAL USE 3-EN-DC-147 I REV. 5C1 Enaineering Reports Attachments 1 Stevenson & Associates Report 16C4384-RPT-003: Spent Fuel Pool Evaluation for Fukushima R2.1 ER2016-029 Body Page 7 of?

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