ML19305A801

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Correction Letter for Amendment No. 203 to Renewed Operating License No. DPR-22
ML19305A801
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 11/12/2019
From: Robert Kuntz
Plant Licensing Branch III
To: Church C
Northern States Power Company, Minnesota
Kuntz R
References
EPID L-2018-LLA-0076
Download: ML19305A801 (4)


Text

UNITED STATES WASHINGTON, D.C. 20555-0001 November 12, 2019 Mr. Christopher Church Senior Vice President and Chief Nuclear Officer Northern States Power Company - Minnesota 2807 West County Road 75 Monticello, MN 55362-9637

SUBJECT:

MONTICELLO NUCLEAR GENERATING PLANT - CORRECTION LETTER FOR AMENDMENT NO. 203 TO RENEWED OPERATING LICENSE NO. DPR-22 (EPID L-2018-LLA-0076)

Dear Mr. Church:

On August 29, 2019 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML19176A421 ), the U.S. Nuclear Regulatory Commission (NRC or the Commission) issued Amendment No. 203 to Renewed Facility Operating License No. DPR-22 for the Monticello Nuclear Generating Plant (MNGP). The amendment adds a condition to the MNGP renewed facility operating license to allow the implementation of Title 10 of the Code of Federal Regulations, Section 50.69, "Risk informed categorization and treatment of structures, systems and components for nuclear power reactors."

This letter corrects the issuance of Amendment No. 203 for MNGP to correct an administrative error to RFOL No. DPR-22, Page 10. The amendment revised the numeration for conditions that were not related to the amendment request and were not intended to be renumbered.

Specifically, the amendment changed the numbering of conditions 15(e), 15(f), 15(g), and 15(h) to 15(a), 15(b), 15(c), and 15 (d). The enclosed RFOL No. DPR-22, Page 10, reverts the numbering to the convention prior to Amendment 203.

Robert F. Kuntz, Senior Project Manager Plant Licensing Branch Ill Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-263

Enclosure:

Renewed Facility Operating License DPR-22, Page 10 cc: Listserv

Enclosure:

Renewed Facility Operating License DPR-22, Page 1O

2. Level 1 performance criteria; and
3. The methodology for establishing the limit curves used for the Level 1 and Level 2 performance.

(e) The results of the power ascension testing to verify the continued structural integrity of the steam dryer shall be submitted to the NRC staff in a report that includes a final load definition and stress report of the steam dryer, including the results of a complete re-analysis using the ACE 2.0 and ACE2.0-SPM specific bias and uncertainties. The report will be provided within 90 days of the completion of EPU power ascension testing.

(f) During the first two scheduled refueling outages after reaching EPU conditions, a visual inspection shall be conducted of all accessible, susceptible locations of the steam dryer in accordance with the inspection guidelines provided to the NRC.

(g) The results of the visual inspections of the steam dryer shall be reported to the NRC staff within 90 days following startup from the respective refueling outage.

(h) At the end of the second refueling outage, following the implementation of the EPU, the licensee shall submit a long-term steam dryer inspection plan based on industry operating experience along with the baseline inspection results for NRC review and approval.

The license conditions described above shall expire ( 1) upon satisfaction of the requirements in Paragraphs 15(f) and 15(g), provided that a visual inspection of the steam dryer does not reveal any new unacceptable flaw(s) or unacceptable flaw growth that is due to fatigue, and (2) upon satisfaction of the requirements specified in Paragraph 15(h).

16. Adoption of 10 CFR 50.69 1 "Risk-informed categorization and treatment of structures, systems, and components for nuclear power plants" NSPM is approved to implement 10 CFR 50.69 using the approaches for categorization of Risk Informed Safety Class (RISC}-1, RISC-2, RISC-3, and RISC-4 structures, systems, and components (SSCs) using:

Probabilistic Risk Assessment (PRA) models to evaluate risk associated with internal events, including internal flooding and internal fire, with the shutdown safety assessment process to assess shutdown risk; the Arkansas Nuclear One, Unit 2 (AN0-2) passive categorization method to assess passive component risk for Class 2 and Class 3 SSCs and their associated supports; and the results of non-PRA evaluations that are based on the IPEEE Screening Assessment for External Hazards, i.e.,

seismic margin analysis (SMA) to evaluate seismic risk, and a screening of other external hazards (e.g., external flooding and high winds) updated using the external hazard screening significance criteria identified in Renewed License No. DPR-22 Amendment No. 203

SUBJECT:

MONTICELLO NUCLEAR GENERATING PLANT-CORRECTION LETTER FOR AMENDMENT NO. 203 TO RENEWED OPERATING LICENSE NO. DPR-22 (EPID L-2018-LLA-0076) DATED NOVEMBER 12, 2019 DISTRIBUTION:

PUBLIC RidsACRS_MailCTR Resource RidsNrrDorlLpl3 Resource RidsNrrLASRohrer Resource RidsNrrPMMonticello Resource RidsRgn3MailCenter Resource 3/LA NRR/D0RULPL3/BC NRR/D0RULPL3/PM NSalgado (SWall for) RKuntz 19 11/07/19 11/12/19 OFFICIAL RECORD COPY