ML17279A120
| ML17279A120 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 10/04/2017 |
| From: | Northard S Northern States Power Company, Minnesota, Xcel Energy |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17279A095 | List: |
| References | |
| CAC MF7121, CAC MF7122, L-PI-17-041 | |
| Download: ML17279A120 (3) | |
Text
ENCLOSURES 1 AND 4 CONTAIN PROPRIETARY INFORMATION.
WITHHOLD FROM PUBLIC DISCLOSURE IN ACCORDANCE WITH 10 CFR 2.390 1717 Wakonade Drive Welch, MN 55089 fl Xcel Energy*
800.895.4999 xcelenergy.com RE S P 0 N S I B LE BY NATURE October 4, 2017 L-Pl-17-041 10 CFR 50.90 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Prairie Island Nuclear Generating Plant, Units 1 and 2 Docket Nos. 50-282 and 50-306 Renewed Facility Operating License Nos. DPR-42 and DPR-60 Response to Request for Additional Information Regarding License Amendment Request for Spent Fuel Pool Criticality Technical Specification Changes (CAC Nos. MF7121_ and MF7122)
References:
- 1) Letter from NSPM to NRG, License Amendment Request for Spent Fuel Pool Criticality Technical Specification Changes," dated November 17, 2015.
(ADAMS Accession No. ML 15327A2~4)
- 2) Email from NRG to NSPM, "Official Use Only-Proprietary Information Enclosed: Request for Information Related to the Prairie Island Spent Fuel Pool Criticality Analysis License Amendment Request (CAC Nos. MF7121 and MF7122)," dated October 31, 2016.
- 3) Letter from NSPM to NRG, "Response to NRG Request for Information -
License Amendment Request for Spent Fuel Pool Criticality Technical Specification Changes (CAC Nos. MF7121 and MF7122)," dated February 16, 2017. (ADAMS Accession No. ML17047A454)
- 4) Letter from NRG to NSPM, "Summary of March 9, 2017, Meeting with Northern States Power Company, Doing Business as Xcel Energy, Related to the Spent Fuel Pool Criticality License Amendment Request (CAC Nos.
MF7121 and MF7122)," dated April 6, 2017. (ADAMS Accession No. ML17093A601)
- 5) Letter from NSPM to NRG, "Summary of Public Meeting and Plan for NRG Request for Additional Information Regarding License Amendment Request for Spent Fuel Pool Criticality Technical Specification Changes (CAC Nos.
MF7121 and MF7122)," dated April 19, 2017. (ADAMS Accession No. ML17109A485) 1~") \\
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Document Control Desk Page2 Pursuant to 10 CFR 50.90, Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"), requested in Reference 1 an amendment to the Technical Specifications (TS) for the Prairie Island Nuclear Generating Plant (PINGP).
Specifically, NSPM proposed to revise TS 3. 7.16, "Spent Fuel Storage Pool Boron Concentration," and TS 4.3.1, "Fuel Storage Criticality," to allow spent fuel pool (SFP) storage !
of nuclear fuel containing a boron-based neutron absorber in the form of zirconium diboride (ZrBr2) Integral Fuel Burnable Absorber (IFBA).
To complete their review of Reference 1, the NRC staff provided a second request for additional information (RAI) in Reference 2.
In Reference 3, NSPM deferred response to the Reference 2 RAls until the merits of those RAls could be discussed with the NRC staff.
At a public meeting held on March 9, 2017, NSPM sought to understand the basis for these RAls relative to the additional conservatisms that potentially result in unnecessary spent fuel movement and adverse safety impact. NSPM requested that the NRC Staff reconsider the need for the RAls. The NRC provided their summary of the public meeting in Reference4, and NSPM provided their summary of the public meeting in Reference 5. to this letter provides the proprietary version of the Westinghouse Electric Company, LLC (Westinghouse) prepared reply to RAls 6. and 7. Enclosure 2 provides the non-proprietary version of the* Westinghouse-prepared reply. Enclosure 3 provides TS Table 4.3.1-3 marked-up to show the changes resulting from the analysis performed in support of the RAI responses. provides Westinghouse report WCAP-17400-P, Supplement 1, Revision 2, "Prairie Island Units 1 and 2 Spent Fuel Pool Criticality Safety Analysis - Supplemental Analysis Including the Storage of IFBA Bearing Fuel," dated September 2017. Revision 2 incorporates design basis input changes for IFBA Bearing Fuel and incorporates grid growth and a change in eccentric positioning methodology. Additionally, WCAP-17400 limits are updated to,
consider the impact of the grid growth and eccentric positioning methodology change. provides the non-proprietary version of the Westinghouse Report WCAP-17 400-NP, Supplement 1, Revision 2.
Encl.osure 6 contains the Westinghouse Applications for Withholding Proprietary Information from Public Disclosure CAW-17-4644 and CAW-17-4643, accompanying Affidavits, Proprietary Information Notices, and Copyright Notices.
As Enclosures 1 and 4 contain information proprietary to Westinghouse, they are supported by Affidavits signed by Westinghouse, the owner of the information. The Affidavits set forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b)(4) of Section 2.390 of the Commission's regulations. Accordingly, it is respectfully requested that the information in Enclosures 1 and 4 which is proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR 2.390 of the Commission's regulations.
Document Control Desk Page 3
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Correspondence with respect to the copyright or proprietary aspects of the items provided in Enclosures 1 and 4 of this letter or the supporting Westinghouse Affidavit should reference the respective Westinghouse letter number (CAW-17-4644 or CAW-17-4643) and should be addressed to James A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company, 1000 Westinghouse Drive, Building 3 Suite 310, Cranberry Township, Pennsylvania 16066.
The supplemental information provided herein does not change the conclusions of the No Significant Hazards Consideration and the Environmental Consideration evaluations 'provided in Reference 1.
If there are any questions or if additional information is required, please contact Mr. Gene Eckholt at (651) 267-1742.
Summary of Commitments This letter makes no new commitments and no revisions to existing commitments.
I declare, under penalty of perjury, that the foregoing is true and correct.
~Ur4.2017.
Scott Northard Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota Enclosures (6) cc:
Administrator, Region Ill, USNRC Project Manager, Prairie Island, USNRC Resident Inspector, Prairie Island, USNRC State of Minnesota (without Enclosures 1 and 4)