IR 05000282/2015008

IR 05000282/2015008 and 05000306/2015008; 10/05/2015 - 11/24/2015; Prairie Island Nuclear Generating Plant, Units 1 and 2; Annual Problem Identification and Resolution Inspection (Njf)

ML16005A567
Person / Time
Site:	Prairie Island
Issue date:	01/05/2016
From:	Christine Lipa NRC/RGN-III/DRS/EB2
To:	Davison K Northern States Power Co
References
IR 2015008
Download: ML16005A567 (30)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION ary 5, 2016

SUBJECT:

PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2 - NRC ANNUAL FOLLOW-UP OF SELECTED PROBLEM IDENTIFICATION AND RESOLUTION ISSUES; INSPECTION REPORT 05000282/2015008; 05000306/2015008 AND NOTICE OF VIOLATION

Dear Mr. Davison:

On November 24, 2015, the U.S. Nuclear Regulatory Commission (NRC) completed an annual problem identification and resolution follow-up sample at your Prairie Island Nuclear Generating Plant, Units 1 and 2. The enclosed report documents the results of this inspection, which were discussed on November 24, 2015, with Mr. S. Northam, Vice President of Fleet Operations, and other members of your staff.

Based on the results of this inspection, the NRC has identified an issue that was evaluated under the risk significance determination process as having very low safety significance (Green). The NRC has also determined that a violation is associated with this issue. This violation was evaluated in accordance with the NRC Enforcement Policy. The current Enforcement Policy is included on the NRCs web site at (http://www.nrc.gov/about-nrc/

regulatory/enforcement/enforce-pol.html).

This violation is cited in the enclosed Notice of Violation (Notice), and the circumstances surrounding it are described in detail in the subject inspection report. The violation is being cited in the Notice, consistent with the NRC Enforcement Policy, Section 2.3.2.a.2, because Prairie Island Nuclear Generating Plant, Unit 2, failed to restore compliance and failed to have objective plans to restore compliance in a reasonable time period following the NRC identification of an associated Non-Cited Violation (NCV) on June 30, 2011. The associated NCV was documented in Inspection Report (IR) 05000282/2011003; 05000306/2011003.

You are required to respond to this letter and should follow the instructions specified in the enclosed Notice when preparing your response. If you have additional information that you believe the NRC should consider, you may provide it in your response to the Notice. The NRC review of your response to the Notice will also determine whether further enforcement action is necessary to ensure compliance with regulatory requirements.

Based on the results of this inspection, the NRC has also identified four issues that were evaluated under the risk significance determination process as having very low safety significance (Green). The NRC has also determined that violations are associated with these issues. These violations are being treated as NCVs, consistent with Section 2.3.2 of the Enforcement Policy. These NCVs are described in the subject inspection report. Additionally, a licensee-identified violation is listed in Section 4OA7 of this report. If you contest the subject or severity of any NCVs, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001, with copies to the Regional Administrator, Region III; the Director, Office of Enforcement, U.S.

Nuclear Regulatory Commission, Washington, DC 20555-0001; and the NRC Resident Inspector at the Prairie Island Nuclear Generating Plant.

In addition, if you disagree with the cross-cutting aspect assigned to any finding in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the Regional Administrator, Region III, and the NRC Resident Inspector at Prairie Island Nuclear Generating Plant.

In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390, Public Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy of this letter, its enclosure, and your response (if any) will be available electronically for public inspection in the NRCs Public Document Room or from the Publicly Available Records (PARS)

component of the NRC's Agencywide Documents Access and Management System (ADAMS).

ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Sincerely,

/RA/

Christine A. Lipa, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 50-282, 50-306 License Nos. DPR-42, DPR-60

Enclosure:

1. Notice of Violation 2. IR 05000282/2015008; 05000306/2015008

REGION III==

Docket Nos: 50-282; 50-306 License Nos: DPR-42; DPR-60 Report No: 05000282/2015008; 05000306/2015008 Licensee: Northern States Power Company, Minnesota Facility: Prairie Island Nuclear Generating Plant, Units 1 and 2 Location: Welch, MN Dates: October 5 - November 24, 2015 Inspector: N. Féliz Adorno, Senior Reactor Inspector Approved by: Christine A. Lipa, Chief Engineering Branch 2 Division of Reactor Safety Enclosure 2

Table of Contents

SUMMARY

................................................................................................................................ 2

SUPPLEMENTAL INFORMATION

KEY POINTS OF CONTACT

Licensee

S. Northam, Vice President of Fleet Operations

K. Davison, Site Vice President

E. Blondin, Engineering Director

S. Martin, Performance Assessment Manager

M. Pearson, Regulatory Affairs Manager

J. Connors, Engineering Supervisor

U.S. Nuclear Regulatory Commission

K. Riemer, Chief, Reactor Projects Branch 2

C. Lipa, Chief, Engineering Branch 2

N. Féliz Adorno, Senior Reactor Inspector, Engineering Branch 2

T. Beltz, Project Mananger, Office of Nuclear Reactor Regulation

LIST OF ITEMS

Opened and Closed

05000306/2015008-01 VIO Failure to Correct an NCV Associated with Inadequate Gas Monitoring of Inaccessible RHR Gas Susceptible Locations (Section 4OA2.1.c(1))

05000282/2015008-02; NCV Failure to Manage Gas Accumulation at the RHR Train

05000306/2015008-02 Credited for Emergency Core Cooling in MODE 4 (Section 4OA2.1.c(2))

05000282/2015008-03; NCV Failure to Establish Procedures to Verify RHR is Full of Water

05000306/2015008-03 Following Maintenance Outages (Section 4OA2.1.c(3))

05000282/2015008-04; NCV Failure to Manage Potential Gas Accumulation Due to SI

05000306/2015008-04 Isolation Check Valve Leakage Following Maintenance Outages (Section 4OA2.1.c(4))

05000282/2015008-05 NCV Failure to Identify a Continuous Gas Intrusion into RHR

05000306/2015008-05 (Section 4OA2.1.c(5))

Discussed

None Attachemnt