IR 05000275/2018006

Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2018006 and 05000323/2018006)

ML19058A173
Person / Time
Site:	Diablo Canyon
Issue date:	03/04/2019
From:	Haire M S NRC/RGN-IV/DRP/RPB-A
To:	Welsch J M Pacific Gas & Electric Co
References
IR 2018006
Download: ML19058A173 (6)

Text

March 4, 2019

SUBJECT:

ANNUAL ASSESSMENT LETTER FOR DIABLO CANYON POWER PLANT, UNITS 1 AND 2 (REPORT 05000275/2018 00 6 AND 05000323/2018 00 6) Dear Mr. Welsch

T he 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, 20 18 , through December 31, 20 1 This letter informs you of the NRC's assessment of your facility during this period and its plans for future inspections at your facilit The NRC concluded that overall performance at your facility preserved public health and safet The NRC determined the performance at Diablo Canyon Power Plant, Units 1 and 2 , during the most recent quarter was within the Licensee Response Column, the highest performance category of the NRC

's 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 at your facilit The enclosed inspection plan lists the inspections scheduled through December 31

, 20 2 This updated inspection plan now includes planned security inspections which were formerly transmitted under separate correspondenc The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issue Routine inspections performed by resident inspectors are not included in the inspection pla You should be aware that the agency has proposed changes regarding engineering inspections (SECY

-18-0113, "Recommendations for Modifying the Reactor Oversight Process Engineering Inspections") and is drafting proposed changes to the ROP for Commission consideratio Should the Commission approve changes to the ROP, the engineering and other region

-based inspections are subject to change in scope, as well as schedule, beginning in January 202 The inspections listed during the last 12 months of the inspection plan are tentative and may be revise The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any change J. Welsch 2 Additionally, as reflected in the enclosure, during this period the NRC staff will complet e Temporary Instruction 2515/194 , "Inspection of the Licensee's Implementation of Industry Initiative Associated with the Open Phase Condition Design Vulnerability in Electrical Power Systems (NRC Bulletin 2012

-01)." In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRC

's "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 NRC's 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 me at (817) 200-1148 with any questions you have regarding this lette

Sincerely,

/RA/ Mark S. Haire, Chief Project Branch A Division of Reactor Projects Docket No and 50

-323 License No DPR-80 and DPR

-82 Enclosure:

Inspection Plan

Diablo Canyon

01/01/2019 - 12/31/2020

Unit Start End Activity CAC Title Staff Count

DC 2019 INITIAL EXAM

1, 2 01/13/2019

01/19/2019

EXAD 000500 LICENSE EXAM ADMINISTRATION (EXAD)

INSERVICE INSPECTION

1, 2 02/10/2019

03/08/2019

IP 71111.08P

000702 Inservice Inspection Activities (PWR)

RP INSPECTION (1,3)

1, 2 02/25/2019

03/01/2019

IP 7112