ML20071H306

Fourth Interim Deficiency Rept Re SGTS Design Deficiency, Initially Reported on 801212.Problem Will Be Resolved by Enlarging Size of Water Drains or Placing Timer on Spray Sys.Also Reported Per Part 21

ML20071H306
Person / Time
Site:	05000000, Hartsville, Phipps Bend
Issue date:	02/12/1982
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-82 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8203080362
Download: ML20071H306 (1)

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TENNESSEE $ ALLEY, AUTHORITY CH ATTANOd3 A., T E ESSEE 374ot 400 Chestnut Street Tower II ebrbah1301982 HTRD-50-518 -519, -520, -521/81-03 PBRD-50-553, -554/81-03 #

o; U.S. Nuclear Regulatory Commission k / I?)g Region II ATTN: James P. O'Reilly, Regional Administrator p.

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7 101 Marietta Street, Suite 3100 ' A ff Atlanta, Georgia 30303 g /

Dear Mr. O'Reilly:

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HARTSVILLE AND PHIPPS BEND NUCLEAR PLANTS - SGTS DESIGN DEFICIENCY -

HTRD-50-518, -519, -520, -521/81 PBRD-50-553, -554/81-03 The subject deficiency was initially reported to NRC-0IE, Region II Inspector, McKenzie Thomas on December 12, 1980, as NCR's HTNANEB 8004 and PBNNEB 8004. The first, second, and third interim reports were submitted on January 9, May 26, and October 1, 1981, respectively. In compliance with paragraph 50.55(e) of 10 CFR Part 50, this letter constitutes the fourth interim report on the subject deficiency.

TVA has made a decision on the alternatives to correct the SGTS water drainage problem. The alternatives were to enlarge the size of the drains or put a timer on the spray system to limit the amount of water sprayed on the charcoal and carried to the drainage system. The decision was made to enlarge the drains to provide adequate drainage with a more reliable and cost-efficient system. We have notified GE of our decision and are in the process of officially requesting the change to design.

We consider 10 CFR Part 21 applicable to this nonconformance. We anticipate transmitting the next report on or before July 30, 1982. If you have any questions, please call Jim Domer at FTS 858-2725.

Very truly yours, TENNESSEE VALLEY AUTHORITY

. M. Mills, nager Nuclear Regula ion and Safety cc: Mr. R. C. DeYoung, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 OFFICIAL COW O203080362 820212

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