DCL-19-078, 10 CFR 50.46 Annual Report of Emergency Core Cooling System Evaluation Model Changes for Peak Cladding Temperature for 2018
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| ML19276H763 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 10/03/2019 |
| From: | Gerfen P Pacific Gas & Electric Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| DCL-19-078 | |
| Download: ML19276H763 (1) | |
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Category:Annual Operating Report
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Text
Pacific Gas and Electric Company*
Paula Gerten Diablo Canyon Power Plant Site Vice President Mail code 104/6/605 P.O. Box 56 Avila Beach, CA 93424 805.545.4596 Internal: 691.4596 Fax: 805.545.4234 October 3, 2019 PG&E Letter DCL- 19-078 U.S. Nuclear Regulatory Commission 10 CFR 50.46 ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 10 CFR 50.46 Annual Report of Emergency Core Cooling System Evaluation Model Changes for Peak Cladding Temperature for 2018
Reference:
- 1. PG&E Letter DCL-18-071, "10 CFR 50.46 Annual Report of Emergency Core _
Cooling System Evaluation Model Changes for Peak Cladding Temperature for 2017," dated September 25, 2018
Dear Commissioners and Staff:
Pursuant to 10 CFR 50.46, Pacific Gas and Electric Company (PG&E) hereby submits this annual report of changes in the Westinghouse emergency core cooling system evaluation models that affect peak cladding temperature (PCT) calculations for Diablo Canyon Power Plant, Units 1 and 2.
Because there are no changes from the results provided in Reference 1, there are no enclosures provided in this letter. The sum of the PCT from the most recent analysis of record using an acceptable evaluation model and the estimates of the net PCT effect for changes and errors remains within the 2200°F limit specified in 10 CFR 50.46.
PG&E makes no new or revised regulatory commitments (as defined by NEI 99-04) in this letter.
If you have questions regarding this submittal, please contact Mr. Mark Frauenheim at 805-545-37 44.
Si?Z/~~-
Paula Gerten -6 dqmg/6192/50871345-08 cc: Diablo Distribution Scott A. Morris, NRC Region IV Administrator John P. Reynoso, Acting NRC Senior Resident Inspector Balwant K. Singal, NRC Senior Project Manager A member of the STARS Alliance Callaway
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