ML20236L385
| ML20236L385 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 07/02/1998 |
| From: | Grobe J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Kingsley O COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20236L387 | List: |
| References | |
| 50-254-98-11, 50-265-98-11, NUDOCS 9807100334 | |
| Download: ML20236L385 (3) | |
See also: IR 05000254/1998011
Text
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My
July 2, 1998
Mr. Oliver D. Kingsley
President, Nuclear Generation Group
Commonwealth Edison Company-
ATTN: Regulatory Services
- Executive Towers West lli
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-1400 Opus Place, Suite 500
Downers Grove, IL 60515
SUBJECT:
NRC INSPECTION REPORT _50-254/98011(DRS); 50-265/98011(DRS)
Dear Mr. Kingsley:
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On May 22,1998, the NRC completed an inspection at Quad Cities Nuclaar Power Station.
The enclosed report presents the results of that inspection. The purpose of the inspection was
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to review actions taken by your staff, as specified in your letter dated April 29,1998, that
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responded to our confirmatory action letter, dated January 16,1998. The conclusions of the
inspection were discussed with you, and those members of your staff identified in the enclosed
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report, on May 8 and on May 22, at the Quad Cities Station and on May 13, during a
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_ management meeting held in the Region lli office.
The inspection concluded that the Quad Cities safe shutdown analysis and supporting
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procedures, when combined with the compensatory measures agreed to during the above -
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meetings and documented in your May 22,1998 letter regarding the inspection, were
acceptable as a minimum interim methodology. This was based upon a defense in-depth
strategy where the compensatory measures aided la: (1) preventing fires from starting, .
(2) detecting fires rapidly so that they could be controlled and extingu;shed promptly, and
(3) assisting the operations staff to ensure that the safe shutdown procedures could be '
implemented. However, the NRC understands that these compensatory actions were
implemented on a short-term basis and that the Quad Cities Station intends to take actions to
bring the plant into full compliance with 10 CFR Part 50, Appendix R.
During this inspection, NRC identified several concems which require further information in
order to allow us to evaluate them. These include: (1) the effects of loss of 125 Vdc power;
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(2) the effect of fire damage to non-safe-shut down equipment on the ability to achieve and
maintain safe shutdown conditions; (3) the acceptability of crediting automatic closure of the
main steam isolation valves; (4) the acceptability of assuming one spurious operation in any fire
area, regardless of the number, type or location of cables and circuits in the area; and (5) the
' acceptability of not having full detection and suppression over fire hazards in fire area TB-ll.
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These issues are currently categorized as an unresolved item and are discussed more fully in
the enclosed report. We request that, within 60' days of this letter, you provide a justification on
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. how each of the above issues complies with the requirements of Appendix R. For the fourth
item, we request that your explanation specifically discuss the automatic depressurization
valves and the effect of multiple valves opening on the available time line.
~ 9907100334 900702
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DR.,
ADOCK 05
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,
O. Kingsley -
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter, and its
enclosures will be placed in the NRC Public Document Room.
Sincerely,
-ohn A. Grobe, Director
ivision of Reactor Safety
Docket Nos.: 50-254; 50-265
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. License Nos.: DPR-29; DPR-30
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- Enclosure:
Inspection Report No. 50-254/98011(DRS);
50-265/98011(DRS)
cc w/ encl:
M. Wallace, Senior Vice President
D. Helwig, Senior Vice President
G. Stanley, PWR Vice President
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'J. Perry, BWR Vice President
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D. Farrar, Regulatory
Services Manager
I. Johnson, Licensing Director
DCD - Licensing -
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J. Dimmette,' Jr., Site Vice President -
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W. Pearce, Quad Cities Station Manager
~ C. Peterson, Regulatory Affairs Manager
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R. Hubbard
N. Schloss, Economist
. Office of the Attomey General
State Liaison Of'icer
,
Chairman, Illino's Commerce
Commission
W. Leech, Manager of Nuclear
MidAmerican Energy Company
DOCUMENT NAME: G:DRS\\QUA98011.DRS
. To receive a comy of this document, Indicate in the box "C" = Copy w/o attach /enci *E" = Co)y w/ attach /enci *N* = No copy
OFFICE
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NAME
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disrobe yuef
DATE
6/12/98
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6Dd98
41/p/98
OFFICIAL RECORD COPY
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.s'.
~
O. Kingsley
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Distribution:
SAR (E-Mail)
Project Mgr., NRR w/enci
C. Paperiello, w/enci
J. Caldwell, w/ enc!
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B. Clayton, w/enci
J. Heller, w/enci -
P. Madden, NRR, w/ encl
P. Qualls, NRR, w/enct
SRI Quad Cities w/enci
DRP w/ encl
TSS w/enci
,
DRS (2) w/enci
Rlli PRR w/enci
I
d
PUBLIC IE-01 w/enci
Docket File w/enci
GREENS-
IEO (E-Mail)
DOCDESK (E-Mail)
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