ML19093B351
| ML19093B351 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 07/13/1976 |
| From: | Stallings C Virginia Electric & Power Co (VEPCO) |
| To: | Reid R, Rusche B Office of Nuclear Reactor Regulation |
| References | |
| Download: ML19093B351 (1) | |
Text
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e VIRGINIA ELECTRIC.A.ND POWER COMPANY RICHMOND, VIRGINIA 2 3 2 61 July 13,* 1976
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I Mr. Benard c. Rusche Director of Nuclear Reactor Regulation
- u. s. Nuclear Regulatory Commission Washington, D. c.
20555 ATTN:
Mr. Robert W. Reid, Chief Operating Reactors Branch 4
Dear Mr. Rusche:
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Serial N-0-. 122,
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PO&M./ ALH: j lf Docket Nos.
50-280 50-281 License Nos. DPR-32 DPR-37 In accordance with Technical Specification 4.14.C.1 for Surry Power Station, this report describes an occurrence during which the difference be-tween the river water ambient temperature measured at the station high level intake and cooling water at the discharge control structure exceeded 15 degrees F.
On June 25, 1976 at approximately 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br />, the Delta-T across the "C" waterbox exceeded 23 degrees F for twenty minutes with "D" waterbox out of service for maintenance. During this time the station Delta-T increased to 15.5 degrees F.
Unit 2 was operating at 92 percent power at the time of the occurrence.
Immediate corrective action put the D" waterbox back in ser-vice.
Upon inspection of "C" waterbox, an excessive amount of trash was found on the tubes.
There was no apparent adverse enviromnental impact resulting from this occurrence.
cc:
Mr. N. c. Moseley Very truly yours,
- c. M. Stallings Vice President-Power Supply and Production Operations
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