ML19332G142

Advises That Audit of Boric Acid Corrosion Prevention Program Results in Acceptable Finding & Considers Issue to Be Closed.Trip Rept Covering Results of Audit Encl

ML19332G142
Person / Time
Site:	Millstone
Issue date:	12/11/1989
From:	Vissing G Office of Nuclear Reactor Regulation
To:	Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO., NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML19332G143	List: ML19332G142 ML19332G147
References
GL-88-05, GL-88-5, TAC-73008, NUDOCS 8912200210
Download: ML19332G142 (4)

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December 11, 1989

-Docket No. 50-336 Mr. Edward J. Mroczka Senior Vice President Nuclear E9gineering and Operations Connecticut Yankee Atomic Power Company Northeast Nuclear Energy Company P. O. Box 270 i

. Hartford, Connecticut 06141-0270 l

SUBJECT:

PREVENTION OF BORIC ACID CORROSION AT MILLSTONE UNIT 2 (GENERICLETTER88-05)(TACNO.73008)

The purpose of this letter is to advise you that our audit of your boric acid corrosion )revention program has resulted in an acceptable finding and we now consider tiis issue to be closed.

On' June 26-28, 1989, the NRC staff and our consultant visited the Millstone, Unit 2, plant to audit the program to prevent boric acid-related corrosion.

The audit team included K. Parczewski (NRC) and C. Czaklpwslo (consultant, Brookhaven National Laboratory).

Boric acid corrosion prevention requirements were described in Generic Letter 88-05 which was issued on March 17, 1988, and requested the implementation of such a program by all licensees of operating PWRs and holders of construction permits for PWRs.

In your letter dated May 27, 1988, you provided a description of, and a consnitment to, a boric acid i

leakage monitoring and a corrosion prevention program for Millstone 2.

A copy of the trip report covering the results of the audit which was prepared by our consultant is enclosed. The staff has reviewed this remrt and agrees with its findings and the conclusion. On this basis and the o>servations made during the audit, we conclude that you have adequately implemented a program i

for monitoring small primary coolant leakage through carbon steel components I

caused by boric acid corrosion as described in your submittal dated May 27, 1988, for the Millstone Unit 2 facility.

The results of the Millstone 2 audit will be used along with audit results from other plants in our overall determination of future actions to be taken regarding NRC's final resolution i

of this industry-wide generic issue.

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v Mr. E. J. Mroczka Our review of this issue for the Millstone 2 is closed.

Sincerely,

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Suf S. Vissing, Prp ct Manager Project Directorate I-4 Division of Reactor Projects - I/II i

Office of Nuclear Reactor Regulation

Enclosure:

Brookhaven National Laboratory Report cc w/ enclosure:

See next page l

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Our review of this issue for the Millstone 2 is closeo.

Sincerely, F

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Guy S. Vissing Project Manager Project Directorate I-4 Division of Reactor Projects. I/II Office of Nuclear Reactor Regulation' i

Enclosure:

Brookhaven National Laboratory Report cc w/ enclosure:

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OFFICIAL RECORD COPY Document Nane: TAC 73008 1;

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v Mr. Edward J. Mroczka Millstone Nuclear Power Station i

Northeast Nuclear Energy Company Unit No. 2 CC:

Gerald Garfield, Esquire R. M. Kacich, Manager Day, Berry and Howard Generation Facilities Licensing Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Ron6 erg, Vice President D. O. Nordquist Nuclear Operations Manager of Quality Assurance s

Northeast Utilities Service Company Northeast Nuclear Energy Company Post Office Box 270 Post Office Box 270 Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 Kevin McCarthy, Director Regional Administrator Radiation Control Unit Region I Department of Environmental Protection U. S. Nuclear Regulatory Commission State Office Building 475 Allendale Road Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary First Selectmen Energy Division Town of Waterford Office of Policy and Management Hall of Records 80 Washington Street 200 Boston Post Road Hartford, Connecticut 06106 Waterford, Connecticut 06385 S. E. Scace, Station Superintendent W. J. Raymond, Resident Inspector Hillstone Nuclear Powar Station Millstone Nuclear Power Station Northeast Nuclear Energy Company c/o U. S. Nuclear Regulatory Commission Post Office Box 128 Post Office Box 811 Waterford,-Connecticut 06385 Niantic, Connecticut 06357 J. S. Keenan, Unit Superintendent Charles Brinkman, Manager Millstone Unit No. 2 Washington Nuclear Operations l

Northeast Nuclear Energy Company C-E Power Systems t

Post Office Box 't28 Combustion Engineering, Inc.

l Waterford, Connecticut 06385 12300 Twinbrook Pkwy Suite 330 Rockville, Maryland 20852 1

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