ML20028F495

Interim Deficiency Rept Re Grout Intrusion Into Drywell Airgap.Initially Reported on 820920.Grout Will Be Removed by 830225

ML20028F495
Person / Time
Site:	Hope Creek, 05000355
Issue date:	01/18/1983
From:	Martin T Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8302010395
Download: ML20028F495 (2)

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.. 9 Thomas J. Martin Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 201/4306316 Vice President Erq3ineering and Construction JJAN 18.1.9.83 Mr. Ronald C. Haynes, Administrator U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Haynes:

SIGNIFICANT CONSTRUCTION DEFICIENCY GROUT INTRudION INTO ORYAELL AIRGAP UOPE CREEK GENERATING STATION On September 20, 1982, a verbal report was made to Region I, Office of Inspection and Enforcement representative, Mr. W.

Lazarus, advisir" of a poten31al significant construction deficiency concerning grout seepage into the airgap between the drywell and the shield wall. On October 20, 1982, a written report was submitted to your office indicating that we expected to forward the results of our safety analysis to you by December 31, 1982. On December 27, 1902, Mr. L.

Norrholm, of your staff, in response to our telephoned request, extended tl.e reporting date to January 17, 1933.

The following information is provided i.n accordance with the requirements of 10CFR50.55(e).

1. Bechtel Power Corporation has performed an analysis of the rafety imriications of the airgap condition. The results indicate that, in the event of a Loss of Coolani Accident (LOCA), the presence of the grout in the airgap would have affected the thermal expansion capability of the drywell to the point that code allowable stresses for design loads would be exceeded. Consaquently, we consider this condition to be reportable in acco:; dance with the requirements of 10CFR50.55(e).

8302010395 830118 PDR ADOCK 05000354

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R. C. Haynes 2 1

We are correcting this condition by removing the intruded grout.

To date, we have cleared the penetration sleeves completely and have removed approximately 20% of the intruded grout from the drywell airgap. Given the dttendant access problems, completion of grout removal is targeted for February 25, 1983.

Very truly yours, cc: Office of Inspection and Enforcement Division of Reactor Construction - Inspection Washington, D. C.

NRC Resident Inspector - Hope Creek P. O. Box 241 Hancocks Bridge, NJ 08038 i

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