IR 05000298/2019011

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Biennial Problem Identification and Resolution Inspection Report 05000298/2019011
ML19225D247
Person / Time
Site: Cooper 
Issue date: 08/14/2019
From: Ray Kellar
Division of Reactor Safety IV
To: Dent J
Nebraska Public Power District (NPPD)
References
IR 2019011
Download: ML19225D247 (12)


Text

August 14, 2019

SUBJECT:

COOPER NUCLEAR STATION - BIENNIAL PROBLEM IDENTIFICATION AND RESOLUTION INSPECTION REPORT 05000298/2019011

Dear Mr. Dent:

On July 11, 2019, the U.S. Nuclear Regulatory Commission (NRC) completed a problem identification and resolution inspection at your Cooper Unit 1 and discussed the results of this inspection with Mr. Joe Sullivan, General Manager of Plant Operations, and other members of your staff. The results of this inspection are documented in the enclosed report.

The NRC inspection team reviewed the stations corrective action program and the stations implementation of the program to evaluate its effectiveness in identifying, prioritizing, evaluating, and correcting problems, and to confirm that the station was complying with NRC regulations and licensee standards for corrective action programs. Based on the samples reviewed, the team determined that your staffs performance in each of these areas adequately supported nuclear safety.

The team also evaluated the stations processes for use of industry and NRC operating experience information and the effectiveness of the stations audits and self-assessments.

Based on the samples reviewed, the team determined that your staffs performance in each of these areas adequately supported nuclear safety.

Finally, the team reviewed the stations programs to establish and maintain a safety-conscious work environment, and interviewed station personnel to evaluate the effectiveness of these programs. Based on the teams observations and the results of these interviews the team found no evidence of challenges to your organizations safety-conscious work environment.

Your employees appeared willing to raise nuclear safety concerns through at least one of the several means available.

The NRC inspectors did not identify any finding or violation of more than minor significance.

J. Dent, Jr.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely,

/RA/

Ray L. Kellar, P.E., Team Leader Inspection Programs & Assessment Team Division of Reactor Safety

Docket No. 05000298 License No. DPR-46

Enclosure:

As stated

Inspection Report

Docket Number:

05000298

License Number:

DPR-46

Report Number:

05000298/2019011

Enterprise Identifier: I-2019-011-0001

Licensee:

Nebraska Public Power District

Facility:

Cooper Nuclear Station

Location:

Brownville, NE

Inspection Dates:

June 24, 2019 to July 11, 2019

Inspectors:

H. Freeman, Senior Reactor Inspector

D. Holman, Senior Physical Security Inspector

C. Peabody, Senior Resident Inspector

M. Stafford, Resident Inspector

Approved By:

Ray L. Kellar, P.E., Team Leader

Inspection Programs & Assessment Team

Division of Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a biennial problem identification and resolution inspection at Cooper Nuclear Station in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

None.

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

OTHER ACTIVITIES - BASELINE

71152B - Problem Identification and Resolution Biennial Team Inspection (IP Section 02.04)

The team performed a biennial assessment of the licensees corrective action program, use of operating experience, self-assessments and audits, and safety-conscious work environment.

(1) The team reviewed the stations corrective action program and implementation of the program to evaluate its effectiveness in identifying, prioritizing, evaluating, and correcting problems, and to confirm that the station was complying with NRC regulations and licensee standards for corrective action program. The sample included reviews of over 200 condition reports and associated records in addition to in-depth 5-year reviews of condition reports associated with the automatic depressurization system and the station service water system.

The team evaluated the stations use of industry and NRC operating experience and the effectiveness of the stations audits and self-assessments program. The team reviewed the process used to receive, distribute, and evaluate operating experience by reviewing five examples that had been received during the assessment period. The team reviewed nine self-assessments (benchmark, simple, formal departmental) and seven audits.

The team evaluated the stations safety-conscious work environment. The team interviewed 27 station personnel in five focus group interviews. These groups included personnel from operations, maintenance, radiological protection, engineering, and quality assurance. The team observed interactions between employees during the condition report screening meetings and during the Performance Improvement Review Group meetings. The team interviewed the employee concerns coordinator and reviewed the results of the sites latest safety culture surveys and investigations related to safety-conscious work environment.

INSPECTION RESULTS

Assessment 71152B Corrective Action Program Effectiveness

Based on the samples reviewed, the team determined that the licensees corrective action program complied with regulatory requirements and self-imposed standards. The licensees performance in each of the areas of Problem Identification, Prioritization and Evaluation, and Corrective Actions adequately supported nuclear safety.

The team found that the licensee was identifying and documenting problems at an appropriately low threshold that supported nuclear safety. During the 2-year assessment period, the licensee had initiated almost 16,000 condition reports which averages to over 650 per month.

The team found that the licensee was adequately prioritizing and evaluating problems. Of the condition reports initiated during the assessment period, roughly 3,600 were classified as conditions adverse to quality while the rest were non-adverse. The licensee initiated 3 root cause evaluations and 52 adverse condition assessments. The team did not identify any examples of conditions adverse to quality that had been miss-classified as non-adverse.

The team found that the licensee was developing and implementing corrective actions. The corrective actions appear to be effective and implemented on time frame commensurate with significance. And the corrective actions to prevent recurrence associated with root cause evaluations appear to be appropriate and the effectiveness reviews appeared to be reasonable measurable.

Assessment 71152B Use of Operating Experience, Self-Assessments and Audits

Based upon a review of the operating experience program and selected examples, the team determined the licensee's process for evaluating industry operating experience for relevance to the facility was effective. While the team noted that there had been a couple of examples documented in the corrective action program where operating experience had not been adequately reviewed (including non-cited violation 2018004-01), the team determined that these did not represent current performance and that the corrective actions implemented to address the causes were appropriate.

Based upon a review of selected samples of self-assessments and audits, the team determined that the issues identified were more than trivial and were being addressed appropriately by the responsible organizations. The team concluded that this was indicative of an effective and self-critical learning organization.

Assessment 71152B Safety-Conscious Work Environment

Based on inspection interviews and insights obtained from safety culture and other relevant assessments, the team found that the licensee had established and maintained a safety-conscious work environment where individuals felt free to raise concerns without fear of retaliation. Employees indicated that they had numerous avenues for raising safety concerns including writing condition reports, discussions with their management, using the chain-of-command (open door policy), the employee concerns program and the NRC. Several individuals indicated that licensee management had become much more responsive in addressing and correcting lower level (non-reactor or security safety) equipment issues promptly and that this had increased their confidence that future concerns would be addressed appropriately. All individuals indicated that they felt free to elevate concerns to higher levels without fear of retaliation but they had never had an occurrence where they thought an issue existed when it was necessary to use another path to raise their concerns.

Through reviews of the employee concerns program documents, the latest site safety culture survey results, and summary listings of anonymously submitted concerns, the team did not identify any impediments to the free flow of information. The employee concerns program is the point of contact for all anonymously submitted concerns. The team did not identify any concerns that were submitted to the employee concerns program of a technical nature that were not addressed (as appropriate) by the corrective action program.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

  • On July 11, 2019, the inspectors presented the biennial problem identification and resolution inspection results to Mr. Joe Sullivan, General Manager of Plant Operations, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

71152B

Corrective Action

Documents

Condition Report

(CR-CNS-)

2015-00561, 2015-06713, 2016-03853, 2016-07626, 2016-

07742, 2016-07744, 2017-00346, 2017-00474, 2017-00553,

2017-01012, 2017-01057, 2017-01175, 2017-01787, 2017-

2698, 2017-02709, 2017-02712, 2017-02967, 2017-03091,

2017-03282, 2017-03322, 2017-03553, 2017-03620, 2017-

03685, 2017-03767, 2017-03833, 2017-04076, 2017-04129,

2017-04152, 2017-04288, 2017-04347, 2017-04431, 2017-

04718, 2017-04728, 2017-04846, 2017-04871, 2017-04963,

2017-05041, 2017-05103, 2017-05109, 2017-05185, 2017-

246, 2017-05320, 2017-05323, 2017-05374, 2017-05421,

2017-05542, 2017-05553, 2017-05594, 2017-05819, 2017-

05833, 2017-06059, 2017-06071, 2017-06077, 2017-06085,

2017-06106, 2017-06157, 2017-06202, 2017-06268, 2017-

06311, 2017-06367, 2017-06437, 2017-06488, 2017-06513,

2017-06536, 2017-06573, 2017-06610, 2017-06657, 2017-

06745, 2017-07058, 2017-07104, 2017-07164, 2017-07357,

2017-07367, 2017-07396, 2017-07513, 2017-07537, 2017-

07620, 2017-07625, 2017-07633, 2017-07654, 2017-07761,

2018-00064, 2018-00107, 2018-00250, 2018-00258, 2018-

00359, 2018-00362, 2018-00381, 2018-00394, 2018-00461,

2018-00493, 2018-00494, 2018-00625, 2018-00667, 2018-

00765, 2018-00958, 2018-01199, 2018-01253, 2018-01294,

2018-01346, 2018-01836, 2018-01993, 2018-02106, 2018-

2164, 2018-02823, 2018-04118, 2018-04634, 2018-04669,

2018-04762, 2018-04772, 2018-04871, 2018-06301, 2018-

06307, 2018-06523, 2018-06538, 2018-07125, 2018-07209,

2018-07302, 2018-07394, 2018-07489, 2018-07522, 2018-

07588, 2018-07661, 2018-07736, 2018-07958, 2018-08044,

2018-08096, 2018-08144, 2018-08214, 2018-08343, 2018-

08411, 2018-08615, 2019-00243, 2019-00352, 2019-00353,

2019-00393, 2019-00493, 2019-00786, 2019-00878, 2019-

00948, 2019-01020, 2019-01119, 2019-01192, 2019-01248,

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

2019-01252, 2019-01277, 2019-01300, 2019-01392, 2019-

01439, 2019-01449, 2019-01529, 2019-01574, 2019-01686,

2019-01716, 2019-01836, 2019-02072, 2019-02948, 2019-

03061, 2019-03076, 2019-03256, 2019-03289, 2019-03672,

2019-06112, 2019-06713

71152B

Corrective Action

Documents

Resulting from

Inspection

Condition Report

(CR-CNS-)

2019-03484, 2019-03523, 2019-03543, 2019-03681, 2019-

03683, 2019-03691, 2019-03698, 2019-03719, 2019-03746,

2019-03747, 2019-03748, 2019-03759, 2019-03760

71152B

Miscellaneous

Service Water System Health Reports

2015-2019

71152B

Miscellaneous

Current Events - Core News From Cooper Nuclear Station

2/14/2018

71152B

Miscellaneous

CNS Maintenance Rule Program Status Report

06/04/2019

71152B

Miscellaneous

Main Steam System Health Report

04/2019

71152B

Miscellaneous

005N2326

Cooper (HP1) Cycle 30 SRV Setpoint Study

71152B

Miscellaneous

98-03-03 System

Engineer Desktop

Guide

System Health Reports and Presentations

71152B

Miscellaneous

DBR-0042695

Cooper (HP1) Cycle 30 SSV Setpoint Study

71152B

Miscellaneous

DEC-5260125

Turbine Generator Voltage Regulator Track and Hold

71152B

Miscellaneous

NEDC-31628P

SRV Setpoint Tolerance Analysis for Cooper Nuclear Station

10/1998

71152B

Miscellaneous

NEDC-33543P

Nebraska Public Power District Cooper Nuclear Station

Safety Relief Valve Capacity and Setpoint Evaluation

71152B

Miscellaneous

TCC-5238298

HPCI-V-190 Seal Weld

71152B

Miscellaneous

TCC-5293526

RF-V-527 Temporary Leak Repair

71152B

Procedures

CNS Physical Security Plan

01/08/2019

71152B

Procedures

0-CNS-32

Security Threats, Equipment Tampering, or Sabotage

07/05/2018

71152B

Procedures

0-CNS-LI-102

Corrective Action Process

71152B

Procedures

0-CNS-LI-118

Cause Evaluation Process

71152B

Procedures

0-CNS-WM-100

Work Order Generation, Screening, and Classification

71152B

Procedures

0-FFD-01

NPG Fitness For Duty Program and Behavioral Observation

Program

2/06/2019

71152B

Procedures

0-QA-02-01

QA Vulnerability Review Guide

71152B

Procedures

0.40

Work Control Program

71152B

Procedures

2.2.1

Nuclear Pressure Relief System

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

71152B

Procedures

2.2.1A

Nuclear Pressure Relief System Component Checklist

71152B

Procedures

2.2.1B

Nuclear Pressure Relief System Instrument Valve Checklist

71152B

Procedures

3.18

Security Procedure Confirmed Tampering, Vandalism,

Malicious Mischief

71152B

Procedures

6.1ADS.303

ADS Logic System Functional Test

71152B

Procedures

6.1ADS.304

ADS Water Level Channel Calibration in Mode 1, 2, or 3

71152B

Procedures

6.1ADS.314

ADS Water Level Channel Calibration in Mode 4 or 5

71152B

Procedures

6.1ADS.704

ADS Water Level Channel Functional Test in Mode 1, 2, or 3

71152B

Procedures

6.2ADS.303

ADS Logic System Functional Test

71152B

Procedures

6.2ADS.304

ADS Water Level Channel Calibration in Mode 1, 2, or 3

71152B

Procedures

6.2ADS.314

ADS Water Level Channel Calibration in Mode 4 or 5

71152B

Procedures

6.2ADS.704

ADS Water Level Channel Functional Test in Mode 1, 2, or 3

71152B

Procedures

6.ADS.201

ADS Manual Valve Actuation

71152B

Procedures

6.ADS.202

ADS Manual Valve Circuit Continuity from ASD-ADS Panel

71152B

Procedures

6.ADS.301

ADS and LLS Control Monitor Functional Test

71152B

Procedures

6.ADS.302

ADS Accumulator Functional Test

71152B

Procedures

6.SRV.302

Safety Valve and Relief Valve Position Indication Instrument

and ADS Pneumatic Supply Check

71152B

Procedures

CAP Deskguide 3

Trend Coding

71152B

Procedures

Conduct of Ops

Procedure 2.0.12

Operator Challenges

71152B

Procedures

JA-PI-01

Analysis Manual

7C1

71152B

Procedures

JA-PI-05

PRG Conduct

6C1

71152B

Procedures

Security

Procedure 1.4

Administration of Security Training and Qualifications

2/27/2019

71152B

Procedures

Station Computer

Procedure 11.

Cyber. 10 Cyber Security Assessment

05/22/2019

71152B

Procedures

Station Computer

Procedure 11.

Definitions

Information Technology Definitions

07/05/2018,

6/27/2019

71152B

Self-Assessments LO 2018-0038-

008

Conduct of Operations Focused Self-Assessment

01/17/2019

71152B

Self-Assessments QA Audit 17-05

Quality Assurance Program

08/02/2017

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

71152B

Self-Assessments QA Audit 18-03

Corrective Action Program

06/20/2018

71152B

Self-Assessments QA Audit 18-04

Technical Specifications and Operations

07/27/2018

71152B

Self-Assessments QA Audit 18-04

Technical Specifications and Operations

07/27/2018

71152B

Work Orders

WO 5262332

CNS Replace Breaker DFS-PNL-DFS01

4/24/2019