ML20151R119

Requests Assistance in Reviewing Acceptability of Coating Sys of safety-related Containment Liner.Midway Industrial Contractors,Inc & Util Nonconformance Repts Cited.Util Encl.Evaluation Requested by 860214

ML20151R119
Person / Time
Site:	Braidwood
Issue date:	01/31/1986
From:	Noonan V Office of Nuclear Reactor Regulation
To:	Rossi C Office of Nuclear Reactor Regulation
Shared Package
ML20151R123	List: ML20151R119 ML20151R130
References
NUDOCS 8602050374
Download: ML20151R119 (1)

Text

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M 31586 lvf / / hj go. M MEMORANDUM FOR: C. E. Rossi, Assistant Director Division of PWR Licensing.A FROM: Vincent S. Noonan, Director PWR Project Diretorate #5 Division of PWR Licensing.A

SUBJECT:

REQUEST FOR ASSISTANCE - THE ACCEPTABILITY OF THE CONTAINMENT LINER C0ATING SYSTEM AT BRAIDWOOD STATION, UNITS 1 AND 2 Region III has requested (Enclosure 1) that NRR provide an evaluation of their concerns regarding modifications to the safety-related containment lirer coating system at Braidwood Station, Units I and 2. Your assistance is requested in reviewing the acceptability of the coating system as applied at Braidwood Station. The prime coat of Carbo Zinc 11 was restored, since it had become aged and weathered, prior to applying the finishing coat of Phenoline 30S. The restoration consisted of brush blasting the original coat of Carbo Zinc 11 and applying a second coat of Carbo Zinc 11 to restore the original thickness of the prime coat. This second coat was not diluted to 50% as recorrended by the coatings mar.ufacturer (Carboline Company). Midway Industrial Contractors, Inc. and the applicant, Conmonwealth Edison Corpany, filed Nonconformance Reports (NCRs) to address this issue.

Enclosure 2 is a January 28, 1966, letter from the applicant which briefly describes this issue. Supplerent 9 of the Comanche Peak SER, which addresses a similar paint coating issue, may be used for background information.

Please submit your evaluation by February 14, 1986, in order to facilitate the B*aidwood hearing schedule. For further information or clarification, please contact the Braidwood Project Manager, Janice A. Stevens at Ext. 27144 Sincerely,

.- )

Vincent S. Noonan, Director PWR Project Directorate 85 Division of PWR Licensing-A

Enclosures:

Distribution:

1. TIA Request Docket or C~elitral File

2. 1/28/86 letter from applicant NRC PDR Local PDR cc: T. M. Novak J. L. Mllhoan / PD*5 Reading File J. A. Stevens M. Rushbrook 0FC :PWR-A/PD#5 :DIR:PWR- U#5  :  :  :  ::

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