ML20030B455
| ML20030B455 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 08/10/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.E.4.2, TASK-2.F.1, TASK-TM NUDOCS 8108180137 | |
| Download: ML20030B455 (2) | |
Text
i TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 374o1 400 Chestnut Street Tower II
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August 10, 1981 fy
.J Mr. Harold R. Denton, Director 5
7ggg > -2 Office of Nuclear Reactor Regulation S-i #
U.S. Nuclear Regulatory Commission us. g l37 * ~
Washington, DC 20555 b/
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Dear Mr. Denton:
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In the Matter of the
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Docket Nos. 50-259 Tennessee Valley Authority
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50-260 50-296 We have reviewed the NRC's Order Confirming Licensee Commitments on Post-TMI Belated Issues transmitted by T. A. Ippolito's July 10, 1981 letter to ti. G. Parris. For those requirements listed in the attachment to the order, we confirm our responses presented in our letters dated December 23,1980, March 17, April 9, June 1, Ju'ne 2, July 1, July 2, and July 16, 1981 with the following exceptions >
Items II.F.1, Attachment 2 Item II.E. 4.2 Enclosed are our revised positions for items II.F.1 Attachment 2 and II.E.4.2 Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety Subscribpd, d sworn to,before,
me his/u - day of (J u 4r 1981.
Notary Public My Commission Expires Enclosures
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8108180137 810810 PDR ADOCK 05000 An Equal Opportunity Empfoyer
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.e ENCLOSURE REVISED POSITIONS FOR NUREG-0737 ITEMS BROWNS FERRY NUCLEAR PLANT NUREG-0737, II.F.1, Attachment 2 We stated in our December 23, 1980 response that we were having difficulty in the design and procurement of equipment to adequately implement this item. We stated in our revised response on June 1,
'1981 that there is no instrumentation currently available that will fully meet the NRC requirements for sampling and analysis of plant effluents. However, as required by NUREG-0737, TVA has implemented procedures for collection and onsite analysis of iodine and particulate samples obtained by the existing effluent monitoring system. As stated in NUREG-0737 " iodine gaseous effluent monitors for the accident conditions are not considered practicable at this time.
TVA is continuing design and development of an additional system which will provide for greater accessibility and sample transport in the post-accident environment. However, we will not be able to provide the final design details by the dates previously specified in our June 1 and July 2, 1981 submittals. We have interim design details available and will provide you with final design details as they are developed.
pUREGA-0737, Item II.E.4.2 We wish to supplement our response to item II.E.4.2, position item b, presented in our December 23, 1980 letter with the following information. We have conducted an operability analysis and have determined that the purge valves are adequate for closure against DBA, LOCA forces; therefore, modification of the purge valves is not necessary. Purge valve closure, time reduction, and debris screen installation are planned during upcoming unit outages.
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