ML20129B597
| ML20129B597 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 09/13/1996 |
| From: | Caldwell J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Watzl E NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20129B601 | List: |
| References | |
| NUDOCS 9609230151 | |
| Download: ML20129B597 (3) | |
See also: IR 05000282/1996007
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Septa ber 13,-1996
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.Mr. E. Watz1,-Vice President
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Nuclear. Generation
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Northern States Power Company
414 Nicollet Mall
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. Minneapolis,191 55401
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SUBJECT:
NRC INTEGRATED INSPECTION REPORT NO. 50-282/306/72/96-07
' Dear Mr. Watz1:
On August 15, 1996, the NRC completed an inspection at your Prairie Island.
Nuclear Generating Plant. The~ enclosed report presents the results of that
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inspection.
You should note that this inspection report represents an integrated product
of a number of diverse inspections that were conducted during the inspection
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- period. The summary contaiaed in the report provides an overview of our
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assessment of your performance in the four functional areas (Operations,
Maintenance, Engineering, and Plant Support) in which inspections were
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performed.
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During this inspection period, your conduct of activities at the Prairie
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Island facilities was generally characterized by proper operations,
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maintenance, engineering, and plant support activities. The response of
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operators and the emergency response organization to the partial loss of
offsite power and simultaneous dual unit trips from full power was considered
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excellent.
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We are concerned with an example of poor configuration management that
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resulted in the violation which is being cited during this period.
Both Unit
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I hydrogen monitor channels were inoperable from March 3 through May 15, 1996,
because calibration equipment was degraded. This problem resulted from
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changing a regolator setting on an important accident mitigation system
without adequate documentation and review. Although the issue was licensee-
identified, the NRC elected not to exercise enforcement discretion because the
degraded equipment could~have caused confusion during an accident event and
complicated recovery actions.
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230022
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9609230151 960913
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PDR- ADOCK 05000202
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E. Watz1
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This issue is cited in the enclosed Notice of Violation, and the circumstances
surrounding the violation are described in detail in the enclosed report.
Please note that you are required to respond to this letter and should follow
the instructions specified in the enclosed Notice when preparing your
response. The NRC will use your response, in part, to determine whether
further enforcement action is necessary to ensure compliance with regulatory
requirements.
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
(PDR).
Sincerely,
Original signed by John A. Grobe
Acting Deputy Director, DRP
James L. Caldwell, Acting Director
Division of Reactor Projects
Docket Nos.:
50-282, 50-306, 72-10
License Nos: DPR-42, DPR-60, SNM-2506
Enclosures:
1.
2.
Inspection Report No. 50-282/306/72/96-07
cc w/ enc 1:
Plant Manager, Prairie Island
John W. Ferman, Ph.D.,
Nuclear Engineer, MPCA
State Liaison Officer, State
of Minnesota
State Liaison Officer, State
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of Wisconsin
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Tribal Council
Prairie Island Dakota Community
Docket File w/ enc 1
DRP w/ encl
PUBLIC IE-01 w/ enc 1
RIII PRR w/ enc 1
OC/LFDCB w/ enc 1
Prairie Island PM, NRR w/ enc 1
SRI Prairie Island,
IPAS (E-Mail) w/enci
Monticello w/ enc 1
RMB/ FEES
,
A. B. Beach, w/ enc 1
B. L. Burgess, w/ encl
(See attached concurrence)
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NAME
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DATE
08/ /96
08/ /96
08/ /96
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0FFICIAL RECORD COPY
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E. Watz1
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This issue is cited in the enclosed Notice of Violation, and the circumstances
surrounding the violation are described in detail in the enclosed report.
,
Please note that you are required to respond to this letter and should follow
the instructions specified in the enclosed Notice when preparing your
i
response. The NRC will use your response, in part, to determine whether
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further enforcement action is necessary to ensure compliance with regulatory
requirements.
!
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
(PDR).
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Sincerely,
}
J. L. Caldwell, Acting Director
'
Division of Reactor Projects
,
Docket Nos.:
50-282, 50-306, 72-10
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License Nos: DPR-42, DPR-60, SNM-2506
Enclosures:
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1.
2.
Inspection Report No. 50-282/306/72/96-07
cc w/ enc 1:
Plant Manager, Prairie Island
John W. Ferman, Ph.D.,
'
Nuclear Engineer, MPCA
State Liaison Officer, State
of Minnesota
State Liaison Officer, State
of Wisconsin
Tribal Council
Prairie Island Dakota Community
Docket File w/ enc 1
DRP w/ enc 1
PUBLIC IE-01 w/ enc 1
RIII PRR w/ enc 1
OC/LFDCB w/ enc 1
Prairie Island PM, NRR w/ encl
SRI Prairie Island,
IPAS (E-Mail) w/ enc 1
Monticello w/ enc 1
RMB/ FEES
A. B. Beach, w/ enc 1
B. L. Burgess, w/ enc 1
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0FFICIAL RECORD COPY
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