IR 05000275/2017006

Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2017006 and 05000323/2017006)

ML18057A436
Person / Time
Site:	Diablo Canyon
Issue date:	03/01/2018
From:	Troy Pruett NRC/RGN-IV/DRP
To:	Welsch J Pacific Gas & Electric Co
Haire M
References
IR 2017006
Download: ML18057A436 (6)

Text

rch 1, 2018

SUBJECT:

ANNUAL ASSESSMENT LETTER FOR DIABLO CANYON POWER PLANT, UNITS 1 AND 2 (REPORT 05000275/2017006 AND 05000323/2017006)

Dear Mr. Welsch:

The U.S. Nuclear Regulatory Commission (NRC) has completed its end-of-cycle performance assessment of Diablo Canyon Power Plant, Units 1 and 2, reviewing performance indicators (PIs), inspection results, and enforcement actions from January 1, 2017 through December 31, 2017. This letter informs you of the NRCs assessment of your facility during this period and its plans for future inspections at your facility. The NRC concluded that overall performance at your facility preserved public health and safety.

The NRC determined the performance at Diablo Canyon Power Plant, Unit 1, during the most recent quarter was within the Licensee Response Column, the highest performance category of the NRCs Reactor Oversight Process (ROP) Action Matrix, because all inspection findings had very low safety significance (i.e., Green), and all PIs were within the expected range (i.e.,

Green). Therefore, the NRC plans to conduct ROP baseline inspections for Unit 1 at your facility in 2018.

The NRC determined the performance at Diablo Canyon Power Plant, Unit 2, during the most recent quarter was within the Regulatory Response Column, the second highest performance column of the NRCs ROP Action Matrix. This conclusion was based on a single, Unit 2-related inspection finding having low-to-moderate safety significance (i.e., White) in the Mitigating Systems Cornerstone originating in the third quarter of 2016, and all PIs being within the expected range (i.e., Green). The NRC previously communicated the final significance determination associated with this finding, and the transition of Diablo Canyon Power Plant, Unit 2, to the Regulatory Response Column, in a letter to Pacific Gas and Electric Company (PG&E) dated December 28, 2016 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML16363A429).

Subsequently, in letters to PG&E dated September 27, 2017, and January 23, 2018 (ADAMS Accession Nos. ML17271A431 and ML18023A118, respectively), the NRC transmitted the results of the initial and follow-up supplemental inspections conducted in accordance with Inspection Procedure 95001, Supplemental Inspection Response to Action Matrix Column 2 Inputs, in which the NRC reviewed the cause evaluations and corrective actions PG&E undertook to address the performance deficiencies associated with the aforementioned White finding. As the NRC described in our January 23, 2018, letter, the NRC concluded the stations actions met the objectives of Inspection Procedure 95001. As such, in accordance with the guidance in Inspection Manual Chapter 0305, Operating Reactor Assessment Program, the White finding was closed, effective December 31, 2017. As a result, the NRC determined the performance at Diablo Canyon Power Plant, Unit 2, to be in the Licensee Response Column of the ROP Action Matrix as of January 1, 2018. Therefore, the NRC plans to also conduct ROP baseline inspections for your Unit 2 facility in 2018.

The enclosed inspection plan lists the inspections scheduled through December 31, 2019. This updated inspection plan now includes planned security inspections which were formerly transmitted under separate correspondence. The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issues. Routine inspections performed by resident inspectors are not included in the inspection plan. The inspections listed during the last 12 months of the inspection plan are tentative and may be revised. The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any changes.

In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRCs Rules of Practice, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of the NRCs document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact Mark Haire at (817) 200-1195 with any questions you have regarding this letter.

Sincerely,

/RA/

Troy Pruett, Director Division of Reactor Projects Docket Nos. 50-275 and 50-323 License Nos. DPR-80 and DPR-82 Enclosure:

Inspection Plan

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2018 - 12/31/2019 Unit Start End Activity CAC Title Staff Count INITIAL EXAM 6 1, 2 01/21/2018 01/27/2018 EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

Inservice Inspection 1 2 02/19/2018 03/02/2018 IP 71111.08P 000702 Inservice Inspection Activities - PWR RAD SAFETY RFO 1,2 2 1, 2 02/26/2018 03/02/2018 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls 1, 2 02/26/2018 03/02/2018 IP 71124.02 000726 Occupational ALARA Planning and Controls 1, 2 02/26/2018 03/02/2018 IP 71151 000746 Performance Indicator Verification BIENNIAL PI&R INSPECTION 4 1, 2 04/16/2018 04/20/2018 IP 71152B 000747 Problem Identification and Resolution 1, 2 04/30/2018 05/04/2018 IP 71152B 000747 Problem Identification and Resolution DC DESIGN BASES ASSURANCE PROGRAMS 5 1, 2 06/11/2018 06/29/2018 IP 71111.21N 000714 Design Bases Assurance Inspection (Programs)

SECURITY TEAM INSPECTION 2 1, 2 06/25/2018 06/29/2018 IP 71130.04 000736 Equipment Performance, Testing, and Maintenance 1, 2 06/25/2018 06/29/2018 IP 71130.07 000739 Security Training RAD SAFETY TEAM 5,6,7,8 4 1, 2 07/09/2018 07/13/2018 IP 71124.05 000729 Radiation Monitoring Instrumentation 1, 2 07/09/2018 07/13/2018 IP 71124.06 000730 Radioactive Gaseous and Liquid Effluent Treatment 1, 2 07/09/2018 07/13/2018 IP 71124.07 000731 Radiological Environmental Monitoring Program 1, 2 07/09/2018 07/13/2018 IP 71124.08 000732 Radioactive Solid Waste Processing and Radioactive Material Handling, Storage, and Transportation Target Set Inspection 2 1, 2 10/01/2018 11/02/2018 IP 71130.14 000743 Review of Power Reactor Target Sets TRIENNIAL FIRE PROTECTION INSPECTION 6 1, 2 10/15/2018 10/19/2018 IP 71111.05XT 000697 Fire Protection - NFPA 805 (Triennial)

1, 2 10/29/2018 11/02/2018 IP 71111.05XT 000697 Fire Protection - NFPA 805 (Triennial)

Page 1 of 3 This report does not include INPO and OUTAGE activities.

This report shows only on-site and announced inspection procedures. 2/23/2018 10:30:45 AM Enclosure

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2018 - 12/31/2019 Unit Start End Activity CAC Title Staff Count EP EXERCISE INSPECTION 4 1, 2 10/22/2018 10/26/2018 IP 71114.01 000716 Exercise Evaluation 1, 2 10/22/2018 10/26/2018 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes 1, 2 10/22/2018 10/26/2018 IP 71151 001397 Performance Indicator Verification SECURITY SOLO INSPECTION 1 1, 2 11/05/2018 11/09/2018 IP 71130.02 000734 Access Control 1, 2 11/05/2018 11/09/2018 IP 71151 001338 Performance Indicator Verification INITIAL EXAM 4 1, 2 11/25/2018 12/01/2018 OV 000956 VALIDATION OF INITIAL LICENSE EXAMINATION (OV)

1, 2 01/13/2019 01/19/2019 EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

INSERVICE INSPECTION 1 2 02/11/2019 02/22/2019 IP 71111.08P 000702 Inservice Inspection Activities - PWR RP INSPECTION 2 1, 2 02/11/2019 02/15/2019 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls 1, 2 02/11/2019 02/15/2019 IP 71124.03 000727 In-Plant Airborne Radioactivity Control and Mitigation 1, 2 02/11/2019 02/15/2019 IP 71151 000746 Performance Indicator Verification BRQ 2 1, 2 04/07/2019 04/13/2019 IP 71111.11B 000704 Licensed Operator Requalification Program and Licensed Operator Performance -

Biennial FORCE-ON-FORCE PLANNING AND EXERCISES 7 1, 2 04/08/2019 04/12/2019 IP 71130.03 000735 Contingency Response - Force-On-Force Testing 1, 2 04/29/2019 05/03/2019 IP 71130.03 000735 Contingency Response - Force-On-Force Testing DIABLO CANYON HEAT SINK INSPECTION 2 1, 2 04/22/2019 04/26/2019 IP 71111.07A 000699 Heat Sink Performance - Annual DIABLO CANYON DBA TEAM INSPECTION 6 1, 2 06/10/2019 06/28/2019 IP 71111.21M 000713 Design Bases Assurance Inspection (Teams)

RP INSPECTION 2 1, 2 07/22/2019 07/26/2019 IP 71124.02 000726 Occupational ALARA Planning and Controls This report does not include INPO and OUTAGE activities. Page 2 of 3 This report shows only on-site and announced inspection procedures.

2/23/2018 10:30:45 AM

IP 22 Inspection Activity Plan Report Diablo Canyon 01/01/2018 - 12/31/2019 Unit Start End Activity CAC Title Staff Count RP INSPECTION 2 1, 2 07/22/2019 07/26/2019 IP 71124.04 000729 Occupational Dose Assessment SECURITY SOLO INSPECTION 1 1, 2 08/19/2019 08/23/2019 IP 71130.02 000734 Access Control 1, 2 08/19/2019 08/23/2019 IP 71151 001338 Performance Indicator Verification TI 2515/194 2 1, 2 08/26/2019 08/30/2019 TI 2515/194 000512 Inspection of the Licensees Implementation of Industry Initiative Associated With the Open Phase Condition Design Vulnerabilities In Electric Power Systems (NRC Bulletin 2012-01)

INSERVICE INSPECTION 1 1 10/07/2019 10/18/2019 IP 71111.08P 000702 Inservice Inspection Activities - PWR EP PROGRAM INSPECTION 1 1, 2 10/21/2019 10/25/2019 IP 71114.02 000717 Alert and Notification System Testing 1, 2 10/21/2019 10/25/2019 IP 71114.03 000718 Emergency Response Organization Staffing and Augmentation System 1, 2 10/21/2019 10/25/2019 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes 1, 2 10/21/2019 10/25/2019 IP 71114.05 000720 Correction of Emergency Preparedness Weaknesses and Deficiencies 1, 2 10/21/2019 10/25/2019 IP 71151 001397 Performance Indicator Verification This report does not include INPO and OUTAGE activities. Page 3 of 3 This report shows only on-site and announced inspection procedures.

2/23/2018 10:30:45 AM

ML18057A436 x SUNSI Review ADAMS: Non-Publicly Available x Non-Sensitive Keyword:

By: RAlexander/dll/rdr x Yes No x Publicly Available Sensitive NRC-002 OFFICE RIV/DRP/SPE RIV/DRS/C RIV/DRS/D RIV/DRP/C RIV/DRP/D NAME RAlexander JGroom AVegel MHaire TPruett SIGNATURE /RA/ /RA/ /RA/ /RA/ /RA/

DATE 2/16/18 2/21/18 2/22/18 2/26/18 2/23/18