ML20043G939
| ML20043G939 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 06/15/1990 |
| From: | Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20043G940 | List: |
| References | |
| NUDOCS 9006210338 | |
| Download: ML20043G939 (3) | |
See also: IR 05000254/1989024
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Docket No. 50-254
JUN 151330
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Docket No. 50-265
' Commonwealth Edison-Company
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ATTN: lMr..Cordell-Reed
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SeniorLVice President
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Post Office Box 767:
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. Gentlemen:
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This refers to the routine safety inspection conducted by P. Lougheed and
F,-Maura of this-office on October'30, 1989, through May 18, 1990, of=
- activities at Quad Cities Nuclear Power Station, Units 1 and 2 authorized by
NRC-Operating Licenses No. DPR-29 and DPR-30 and to the discussion of our-
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findings with Mr.-R. L. Bax at.the conclusion of the inspection.
Thisninspection was conducted to review the performance of the: containment-
integrated leak; rate tests and local leak rateitests at both units. . In
particular.we are concerned about the lack of corrective actions taken,.
with respect to several' containment penetrations.that, throughout the
last decade, haveLf ailed -their. local -leak rate tests and repeatedly caused the
- containments.to exceed their as found leak rate limits. The enclosed copy of-
our; inspection report identifies areas examined during the-inspection.- Within:
these areas,'the inspection consisted of a selective examination of proc'edures-
'and' representative records,; observations, and interviews with personnel,
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The'resultsLof' this inspection indicate Lthat you continue to; experience
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excessive leakage with several containment penetrations.
Specifically. the.
HPCll steam exhaust,'feedwater, cleanup suction, and-drywell/ torus. purge exhaust,
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The excessive ;1eakage rates from these penetrations continue to result in the~~
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Unit ~l~ containment exceeding its maximum allowable. leakage: rate by'a factor of:
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' seven.1 .Similar. problems were experienced with Unit 2 penetrations. We request '
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that your response to the: violation on this subject describe' the-corrective-
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action that will be taken, including' accelerated-local leak rate testing and
preventive . maintenance programs,~. to ensure containment integrity throughout the -
entire _ operating cycle.
During this inspection, certain of your activities appeared to be in violationt
- of NRC requirements, as specified in the enclosed Notice. A written response
isfrequired..
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' In addition to your. response on the violations, you are requested to respond'
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'to the unresolved items concerning testing of the flanges on the-24 inch
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butterfly' valves (Paragraph' 7.g.), the lack of an exemption to 10 CFR 50,
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Appendix J.to permit the; removal of the MSIVs leak rate results from the total'
of all Type B a'nd C test results (Paragraph 7.b.), and the plan to improve
the-quality'of the local -leak rate test procedures-(Paragraph 8).
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9006210338 900615
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lIn~accordance with 10 CFR 2.790 of the Commission's regulations, a~ copy of'
this11etter, the enclosures,. and your response to this-letter will; be placed-
in'the Public Document Room.=
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The responses directed by this letter and the accompanying Notice are not'
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subject'to the clearance procedures of the.0ffice-of Management and Budget?
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LWe will: gladly discuss any questions you have'concerning:this inspection.:
Sincerely,
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T. O. Martin for
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H. J. Miller, Director-
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~ Division'of Reactor Safety
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Enclosures:.
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T. Kovach,_ Nuclear
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Richard.Hubbard.
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D. Galle, Vice President - BWR:
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