ML20155A636

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Advises That Util Will Be Addressing Issue of Reactor Vessel Weld Metal (PTS Ref Temp) within B&W Owners Group near-term Work Scope.Update Will Be Provided by 890101
ML20155A636
Person / Time
Site: Rancho Seco
Issue date: 09/28/1988
From: Croley B
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
REF-GTECI-A-49, REF-GTECI-RV, TASK-A-49, TASK-OR AGM-NTS-88-257, NUDOCS 8810060028
Download: ML20155A636 (1)


Text

GsuunSACRAMENTO MUNICIPAL UTIUTY DISTRICT O P, o. Box 15830 Sacramento CA 95852-1830,(916) 452 3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA AGM/NTS88-257 SEP 2 81900 U. S. Nuclear Regulatory Commission Attnt Document Control Desk Washington, DC 20555 Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54 REACTOR VESSEL WELD METAL WF-70 PRESSURIZED THERMAL SHOCK REFERENCE TEMPERATURE Reference G. W. Knighton to J. Firlit letter dated August 4, 1988, same subject Attention: George Kalman The referenced letter requested that we advise you of our efforts to address the issue of initial RTots for the WF-70 wold metal in our reactor vessel. At the meetihg held on August 24, 1988, we presented information relative to the approach the B&W Owners Group intends to pursuo regarding this issue. Mr. Bevan of your staff attended a portion of the presentation. The presentation was well received; however, because the projected conclusions regarding the WF-70 material were based only partially on available data, the NRC could comment on only the approach by which we intend to prove the conclusions.

We are taking the necessary steps to include the project within the B&W O'mors Group near term work scope, and will provide you with an update on the project by January 1, 1989.

Members of your staff with questions requiring additional information or clarification may contact Steve Rutter at (209) 333-2935, extension 4674, or Jerry Delezenski, extension 4914.

Sincerely, f

!D. G. Croley Assistant General Manager Nuclear Technical Services cct J. B. Martin, NRC, Walnut Creek j A. D'Angelo, NRC, Rancho Seco

\Q 8910060020 BGO920 2 PDR ADOCK 0500 P

RANCHO SECO NUCLEAR GENERATING STATION O 14440 Twin Cities Road. Herald, CA 95638 9799;(209) 333 2935