ML17179A447

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Comments on Util 920625 Response to NRC Review of GL-89-10, Supplement 3,for Dresden Station Units 2 & 3
ML17179A447
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 09/14/1992
From: Siegel B
Office of Nuclear Reactor Regulation
To: Kovach T
COMMONWEALTH EDISON CO.
References
GL-89-10, TAC-M77772, TAC-M77773, NUDOCS 9209240308
Download: ML17179A447 (2)


Text

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September 14, 19~

-, Docket Nos. 50-237 and 50-249 Mr. Thomas J. Kovach Nuclear Licensing Managei Commonwealth Edison Company-Suite 300 OPUS West III 1400 OPUS Place Downers Grove, Illinois 60515

Dear Mr. Kovach:

SUBJECT:

RESPONSE TO NRC REVIEW OF GENERIC LETTER 89-10, SUPPLEMENT 3, FOR DRESDEN STATION, UNITS 2 AND 3 (TAC NOS. M77772 AND M77773)

Commonwealth Edison Company's (CECo) submittal dated June 25, 1992~ proyided information on methods to be utilized for detecting l~aks in piping systems susceptible to intergranular stress-corrosion cracking (IGSCC) at Dresden Station.

In your response you stated that one of the methods of detecting leakage, identified in the staff's April 16, 1992 letter, was available for all the IGSCC susceptible piping except for a small section of the Isolation

  • .condenser (IC) piping.

~ased on subsequent discussions with Peter Piet of

  • your staff it is our understanding that of th~ 110 welds in the IC system only.

. four welds are inaccessible and these foµr welds will receive corrosion

  • resistant cladding in accordance with your February 28, 1992 letter..

On the basis of this suppl ement_a l information the contingency on your propos.ed schedule to meet the !equirements of GL 89-10, Supplement 3, *h~s b~en removed.

This completes TAC Nos. M77772 and M77773.

cc: See next page DISTRIBUTION Sincerely, Or~ginal, signed by:

Byron L. Siegel, Project Manager Project Directorate 111-2 Division of Reactor Projects 111/IV/V Office of Nuclear Re~ctor R~gulation t;g:oJfitt,;~~iJ'~*

NRC & Local PD Rs RBarrett BSiegel CMoore BClayton

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Mr. Thomas J. Kovach Commonwealth Edison Company cc:

Michael I. Miller, Esquire Sidley and Austin One First National Plaza Chicago, Illinois 60690 Mr. C. Schroeder Plant Manager Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 U. S. Nuclear Regulatory Commission Resident Inspectors Office Dresden Station 6500 North Dresden Road Morris, Illinois 60450-9766 Chairman Board of Supervisors of Grundy County Grundy County Courthouse Morris, Illinois 60450 Regional Administrator Nuclear Regulatory Commission, Region III 799 Roosevelt Road, Bldg. #4 Glen Ellyn, Illinois 60137 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive Springfield, Illinois 62704 Robert Neumann Office of Public Counsel State of Illinois Center 100 W. Randolph Suite 11-300 Chicago, Illinois 60601 Dresden Nuclear Power Station

  • Unit Nos. 2 and 3