ML20058H361
| ML20058H361 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 07/20/1982 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20058H334 | List: |
| References | |
| NUDOCS 8208030562 | |
| Download: ML20058H361 (2) | |
Text
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e TENNESSEE VALLEY AUTHQgTygggt; 3 C H ATTANOOGA, TENNESSEE,3740flT A, C L.I I " A 400 Chestnut Street Tower II eglg0p19p,28.ld U.S. Nuclear Regulatory Commission Region II Attn:
Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
Dear Mr. O'Reilly:
SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 - NRC-0IE REGION II INSPECTION REPORT 50-327/82-11 AND 50-328/82 RESPONSE TO ITEM 8.C Item 8.C of the subject OIE inspection report dated July 2, 1982 from F. J. Long to H. G. Parris required that TVA complete surveys of the charging pump room and ice condenser rooms and submit findings and actions taken to correct any problems. Enclosed is our response to item 8.C of the subject inspection report.
If you have any questions, please get in touch with R. H. Shell at FTS 858-2688.
To the best of my knowledge, I declare the statements contained herein are complete and true.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M.' Mil's, Manager Nuclear Licensing Enclosure cc:
Mr. Richard C. DeYoung, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washingtoa, DC 20555 8208030562 820726
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PDR ADOCK 05000327 G
PDR An Equal Opportunity Employer
- s RESPONSE - NRC INSPECTION REPORT NOS.
50-327/82-11 AND 50-328/82-11 F. J. LONG'S LETTER TO H. G. PARRIS DATED. JULY 2, 1982 An additional survey of the Sequoyah Nuclear Plant evacuation alarm systen was performed on June 6, 1982, in order to determine whether the current alarm synten in clearly audible throughout the plant. Both unit 1 and unit 2 were operating at full power, and emphasis was placed on system adequacy at high noise areas. The alarm was actuated for a period of thirty-five minutes while all plant areas were inspected with exception of locations as follows: areas previously identified as deficic1t during the December 1981 testing, diesel generator building and service shops which have already been tested and are unaffected by noise from plant operation, inside the reactor buildings where access is controlled at all times, and five other specific locations in the auxiliary building that were inaccessible.
There were fourteen deficient areas, including engineered safety feature (ESP) pump rooms, where the sirens could not be heard at all; additionally, there were seventeen areas where the sirens could barely be heard and these locations were also considered unacceptable. This high number of deficiencies in the result of testing beyond the capabilities of the original system design criteria.
TVA 13 in the process of evaluating the deficiencies and determining the design modifications necessary to correct all deficient areas.
The completion date of resulting modifications will depend upon the extent of the design changes, materials procurement, and the scheduling process.
These modifications will be incorporated,into the Integrated Modification Commitment Schedule.
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