ML20059B816
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| ML20059B816 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 12/29/1993 |
| From: | Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Storz L CENTERIOR ENERGY |
| Shared Package | |
| ML20059B818 | List: |
| References | |
| NUDOCS 9401040254 | |
| Download: ML20059B816 (3) | |
See also: IR 05000346/1993016
Text
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UNITED STATES ;
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NUCLEAR REGULATORY COMMISSION
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801 WARRENVILLE ROAD
LISLE. ILLINOIS 60532-4351
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DEC 291933
Docket No. 50-346
Centerior Service Company
ATTN: Mr. L. F. Storz
Vice President
Nuclear Davis-Besse i
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c/o Toledo Edison Company
l 300 Madison Avenue l Toledo, OH 43652 l l I Dear Mr. Storz:
SUBJECT: SERVICE WATER SYSTEM OPERATIONAL PERFORMANCE INSPECTION
(50-346/93016(DRS))
This refers to the service water system operational performance inspection
(SWSOPI) conducted by Mrs. Sonia D. Burgess and others of this office on
September 27 through November 16, 1993. The inspection included a review of
authorized activities at the Davis-Besse Nuclear Power Station. At the
conclusion of the inspection, the findings were discussed on November 16, 1993
with you and members of your staff identified in the enclosed report.
The enclosed copy of our inspection report identifies areas examined during
the inspection. The team assessed the service water system's (SWS) i
operational performance. In particular, the team reviewed in detail, the
SWS's design, maintenance, operation, surveillance and testing. The team also
assessed the planned or completed actions for Davis-Besse in response to
Generic Letter (GL) 89-13, " Service Water System Problems Affecting Safety
Related Equipment," issued on July 18, 1989.
l The team considered Davis-Besse's SWS design and operation capable of {
completing the safety function required by the design basis. Several l
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strengths were identified during the inspection including the good quality of
new SWS analyses and calculatio.ns, effective heat exchanger performance
testing, and an effective program for minimizing zebra mussels. Operations
personnel were knowledgeable and well trained in system performance and
operation. The team also considered GL 89-13 guideline implementation
acceptable; however, operating procedures and training lesson plans require
additional attention.
The team also noted some weaknesses. Most significant was the lack of I
adequate configuration controls for the systems, as documented in NRC report
50-346/93019. Inadequate configuration controls could present unnecessary {
challenges to proper plant operation and modification. Other weaknesses were j
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the lack of a safety evaluation for the change in the valve alignment for the
standby containment air cooler and failure to implement your own preventive j
maintenance actions in response to relay conditions identified in an
Information Notice.
9401040254 931229
030 y 9 ;DR ADOCK 0500 6 s (I
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Centerior Service Company 2 DEC 291993
During the inspection, certain of your activities appeared to be in violation
of NRC requirements, as specified in the enclosed Notice of Violation
(Notice).
You are required to respond to this letter and should follow the instructions
specified in the enclosed Notice when preparing your response. In your
response, you should document the specific actions taken and any additional
actions you plan to prevent recurrence. In addition, the report addresses a
number of unresolved issues, weaknesses, and an inspection followup item. We
' request that you also address each of these items along with your reply to the
cited violation identified in the enclosed Notice. After reviewing your
response to this Notice, including your proposed corrective actions and the
results of future inspections, the NRC will determine whether further NRC
enforcement action is necessary to ensure compliance with NRC regulatory
requirements.
In accordance with 10 CFR 2.790 of the Commission's regulations, a copy of
this letter, the enclosures, and your response to this letter will be placed
in the NRC Public Document Room.
The responses directed by this letter and the accompanying Notice are not
subject to the clearance procedures of the Office of Management and Budget as
required by the Paperwork Reduction Act of 1980, PL 96-511.
We will gladly discuss any questions you have concerning this inspection.
Sincerely,
ik d7
Geoffrey E. Grant, Director
Division of Reactor Safety
Enclosures:
1. Inspection Report No.
50-346/93016(DRS)
2. Appendix A - Personnel Contacted
3. Appendix 8 - Generic letter
89-13 Action Items
See Attached Distribution:
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Centerior Service Company- 3 DEC C 91993
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Distribution:
cc w/ enclosures: ;
J. K. Wood, Plant Manager '
W. T. O'Connor, Manager ;
Regulatory Affairs '
O. C. Shelton, Senior Vice President - ;
Nuclear
State Liaison Officer, State of Ohio i'
Robert E. Owen, Ohio Department of
Public Health
A. Grandjean, State of Ohio l
Public Utilities Commission ,
'
OC/LFDCB .
Resident Inspector, RIII i
Project Manager, NRR
D. P. Norkin, RSIB/NRR ,
R. Hasse, RIII
M. W. Hodges, RI '
A. F. Gibson, RII
S. J. Collins, RIV
K. E. Perkins, RV i
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