ML23241A776
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Enclosure 3 contains Sensitive Information - Withhold Under 10 CFR 2.390 When separated from Enclosure 3, this cover letter is decontrolled.
Pacific Gas and Electric Company~
PG&E Letter DCL'-23-044 James R. Morris Manager, Regulatory Services Diablo Canyon Power Plant Mail code 104/5/535 P.O. Box 56 Avila Beach, CA 93424 805.545.4609 Email: James.Morris@pge.com U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 10 CFR 50.4 10 CFR 50.54 10 CFR 50.71 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Power Plant Units 1 and 2 Submittal of Updated Final Safety Analysis Report, Revision 27
Dear Commissioners and Staff:
Pursuant to 10 CFR 50.71(e), 10 CFR50.54(a)(3), and 10 CFR 50.4(b)(6), Pacific Gas and Electric Company (PG&E) hereby submits Diablo *Canyon Power Plant (DCPP) "Updated Final Safety Analysis Report" (UFSAR), Revision 27. contains a summary of changes to the UFSAR resulting from 10 CFR 50.59 evaluations. provides a list of license amendments that resulted in changes incorporated into Revision 27 of the DCPP UFSAR. contains the DCPP UFSAR, Revision 27, including the drawings listed
- on UFSAR Table 1.6-1, on one Digital Versatile Disc (DVD), labeled "Diablo Canyon Power Plant UFSAR, Revision 27 (non-redacted), dated May 2023." The contents are in Adobe Acrobat portable document format. Enclosure 3 contains sensitive information and should be withheld from public disclosure in accordance. with 10 CFR 2.390(d)(1 ). provides a list of the information that has been redacted in accordance with NRC Regulatory Issue Summary (RIS) 2015-17,-"Review and Submission of Updates to Final Safety Analysis Reports, Emergency Preparedness Documents, and Fire Protection Documents." contains one DVD for DCPP UFSAR, Revision 27, with the redacted information identified in Enclosure 4 removed. This DVD is labeled, "Diablo Canyon Power Plant UFSAR, Revision 27 (redacted), dated May 2023."
A member of the STARS Alliance Callaway
- Diablo Canyon
- Palo Ve.rde
- Wolf Creek contains Sensitive Information - Withhold Under 10 CFR 2.390
- When separated from Enclosure 3, this cover letter is decontrolled.
contains Sensitive Information - Withhold Under 10 CFR 2.390 When separated from Enclosure 3, this cover letter is decontrolled.
Document Control Desk Page 2 PG&E Letter DCL-23-044 contains a description of the information that has been removed from the UFSAR in accordance with Appendix A of Nuclear Energy Institute (NEI)
Guideline 98-03, Revision 1, "Guidelines for Updating Final Safety Analysis Reports." Deletions and additions are identified by revision bars on the right side of the associated pages of the UFSAR.
PG&E makes no new or revised regulatory commitments (as defined by NEI 99-04) in this letter.
If you have any questions regarding this submittal, please contact me at (805) 545-4609.
This certifies, to the best of my judgement and belief, that Revision 27 of the DCPP UFSAR accurately presents changes that were incorporated into the UFSAR as of April 2023.
Sincerely, r/-/(~
James R. Morris Manager, Regulatory Services arm b/5094398 7-04 Enclosures cc:
Diablo Distribution cc/enc:
Mahdi 0. Hayes, NRC Senior Resident Inspector Samson S. Lee, NRC Project Manager Robert J. Lewis; NRC Acting Region IV Administrator A
member of the STARS Alliance Callaway
- Diablo Canyon
- Palo Verde
- Wolf Creek Date contains Sensitive Information - Withhold Under 10 CFR 2.390 When separated from Enclosure 3, this cover letter is decontrolled.
PG&E Letter DCL-23-044 Changes Incorporated into the Diablo Canyon Power Plant Updated Final Safety Analysis Report, Revision 27 Resulting from 10 CFR 50.59 Evaluations PG&E Letter DCL-23-044 Changes Incorporated into the Diablo Canyon Power Plant Updated Final Safety Analysis Report, Revision 27 Resulting from 10 CFR 50.59 Evaluations LBIE Description Number(1l 12021-003 I DCPP's response to GSI 191.
(1l 10 CFR 50.59 Licensing Basis Impact Evaluation Number Page 1 of 1 PG&E Letter DCL-23-044 License Amendments (LAs) that Resulted in Changes Incorporated into Revision 27 of the DCPP Updated Final Safety Analysis Report PG&E Letter DCL-23-044 License Amendments (LAs) that Resulted in Changes Incorporated into Revision 27 of the DCPP Updated Final Safety Analysis Report Unit 1 LA 234 Unit 2 Description LA 236 Incorporation of FULL SPECTRUM LOCA Methodology (EPID L-2018-LLA-0730)
Page 1 of 1 PG&E Letter DCL-23-044 List of Information Redacted from Updated Final Safety Analysis Report, Revision 27 in Accordance with RIS 2015-17 PG&E Letter DCL-23-044 List of Information Redacted from Updated Final Safety Analysis Report, Revision 27 in Accordance with RIS 2015-17 Information Withheld Description Figures 6.2-53, 6.2-54, 6.2-55, and 6.2-56 Containment subcompartment analyses drawings.
Figures 12.1-1, 12.1-2, 12.1-3, 12.1-4, 12.1-Radiation zone maps that contain 5, 12.1-6, 12.1-7, 12.1-8, 12.1-9, 12.1-10, general arrangement features.
12.1-11, 12.1-12 Drawings:
Engineering drawings 57722-1, 57723-1, 57724-1, 57725-1, incorporated by reference.
57726-1, 57727-1, 57728-1, 500966-1, 500971-1, 500977-1, 515939-1, 515940-1, 515941-1, 515942-1, 515947-1, 521123-1, 521124-1, 500968-1, 57721-1, 57720-1, 57719-1, 57718-1, 500967-1, 500965-1, 500964-1, 57729-1, 57730-1, 57731-1, 57732-1, 57733-1, 57734-1, 500969-1, 500972-1,500973-1,500974-1, 500976-1, 102023-6, 108023-6, 102023-8, 108023-8, 102023-9, 108023-9, 102023-11, 108023-11, 102023-12, 108023-12, 102023-16, 102023-17C, 102023-17, 102023-18, 108023-18, 515943-1, 515944-1,515945-1, 515946-1, 515948-1, 515949-1, 438431-1, 438432-1, 439533-1, 438449-1, 438445-1, 507613-1, 521120-1, 521130-1, 521121-1, 521131-1, 521122-1, 521132-1, 521133-1, 521134-1, 521125-1, 521135-1, 508845-1, 500002-1, 500852-1, 498992-1, 498993-1, 500003-1, 500853-1, 663082-2, 502699-1 Proprietary Drawings:
Engineering drawings 6006510-7, 6006510-14, 6006510-21, incorporated by reference.
6006510-22, 6006510-23, 6006510-61, 6006510-156, 6006510-132, 6006510-133, 6006510-155, 6006510-134 page 1,
6006510-134 page 2, 6006510-65,
- 6006510-135, 6023226-24, 6023226-27, 6023231-1, 6023231-20, 6021770-30, 6021770-22, 6021770-19, 6021770-5 Page 1 of 1
Digital Versatile Disc Diablo Canyon Power Plant PG&E Letter DCL-23-044 Diablo Canyon Power Plant Updated Final Safety Analysis Report, Revision 27 (redacted), dated May 2023
The DVD in this enclosure contains the following files:
File Name File Size (Mb)
Chapter 1 7.11 Chapter 2 73.5 Chapter 3 30.7 Chapter 4 4.52 Chapter 5 4.00 Chapter 6 17.5 Chapter 7 1.90 Chapter 8 2.41 Chapter 9 8.93 Chapter 10
.968 Chapter 11 4.22 Chapter 12
.632 Chapter 13
.478 Chapter 14 1.32 Chapter 15 17.9 Chapter 16
.098 Chapter 17
.222 Table 1.6-1 Drawings 1445 Page 1 of 1 PG&E Letter DCL-23-044 PG&E Letter DCL-23-044 Description of Information Removed from Revision 27 of the Updated Final Safety Analysis Report PG&E. Letter DCL-23-044 Description of Information Removed from Revision 27 of the Updated Final Safety Analysis Report
.. C:tiapter p *
- oeisci'iption rich*ange
=-
Section.
17.0-17.19 The Quality Assurance Program Description was relocated outside the Table 17.1-1 Figure 17.1-1 UFSAR. Most of Chapter 17 and the listed table and figures were Figure 17.1-2 deleted.
Page 1 of 1 contains Sensitive Information - Withhold Under 10 CFR 2.390 Digital Versatile Disc Diablo Canyon Power Plant PG&E Letter DCL-23-044 Diablo Canyon Power Plant Updated Final Safety Analysis Report, Revision 27 (non-redacted), dated May 2023 contains Sensitive Information - Withhold Under 10 CFR 2.390 contains Sensitive Information - Withhold Under 10 CFR 2.390 The DVD in this enclosure contains the following files:
File Name File Size (Mb)
Chapter 1 7.11 Chapter 2 73.5 Chapter 3 30.7 Chapter 4 4.52 Chapter 5 4.00 Chapter 6 18.7 Chapter 7 1.90 Chapter 8 2.41 Chapter 9 8.93 Chapter 10
.968 Chapter 11 4.22 Chapter 12 3.48 Chapter 13
.478 Chapter 14 1.32 Chapter 15 17.9 Chapter 16
.098 Chapter 17
.222 Table 1.6-1 Drawings 1670 PG&E Letter DCL-23-044 contains Sensitive Information - Withhold Under 10 CFR 2.390 Page 1 of 1