ML20236L532
| ML20236L532 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/11/1998 |
| From: | Imbro E NRC (Affiliation Not Assigned) |
| To: | Bowling M, Loftus P NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML20236L533 | List: |
| References | |
| 50-336-98-202, EA-98-271, NUDOCS 9807130056 | |
| Download: ML20236L532 (3) | |
See also: IR 05000336/1998202
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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WASHINGTON D.C. 20665-0001
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June 11, 1998
EA 98-271
Mr. Martin L. Bowling
Recovery Officer, Unit 2
clo Ms. Patricia Loftus
Director- Regulatory Affairs
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Northeast Nuclear Energy Company
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P.O. Box 128
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Waterford, CT 06385
SUBJECT:
NOTICE OF VIOLATION AND SAFETY SYSTEM FUNCTIONAL INSPECTION
OF MILLSTONE UNIT 2 (NRC INSPECTION REPORT NO. 50-336/98-202)
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Dear Mr. Bowling:
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On March 2 through April 3,1998, the staff of the U.S. Nuclear Regulatory Commission (NRC),
Office of Nuclear Reactor Regulation, Special Projects Office (SPO), performed a safety system
functionalinspection (SSFI) of the Millstone Une 2 reactor building closed cooling water
(RBCCW) system, in addition, the team reviewed the functions of important attendant and
interfacing systems including the service water system (SWS) and electrical systems. The
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SSFl was conducted as part of the NRC staff's Millstone restart review process, as described in
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SECY-97-003, dated January 3,1997. Northeast Nuclear Energy Company (NNECO) has
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been carrying out assessments, principally through the Millstone Unit 2 Configuration
' Management Plan (CMP), to provide assurance that Unit 2 is in conformance with its design
and licensing bases. The NRC staff's SSFI, conducted by the SPO, is part of a multifaceted
effort designed to verify the effectiveness of your CMP efforts. The results of this inspection,
together with additional team inspections, and results from reviews by the Independent
Corrective Action Program (ICAVP) contractor (Parsons Power Group) will be used by the NRC
to assess the effectiveness of your CMP. The purpose of the inspection was to provide
assurance that your review of the RBCCW system had accurately assessed the capability of
the system to perform the safety functions required by its design basis, the condition of the
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system compared with its design and licensing bases, the accuracy of the as-built configuration
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compared to design drawings, and the compliance of system operations with the Final Safety
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Analysis Report (FSAR) and the plant's Technical Specifications (TSs).
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The staff discussed the results of the inspection with your staff during a public exit meeting on
April 9,1998. The team observed that, before the NRC selection of the RBCCW as the out-of-
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scope system on September 19,1997, you had already identified and resolved many important
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system design vulnerabilities. For example, you had re-analyzed system flows, determined that y I
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some flows were not adequate, and then increased flow to those components by increasing
piping sizes. Overall, the team concluded that your CMP review for the RBCCW system was
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effective and that you had accurately assessed the capability of the system to perform the
safety functions required by its design basis, the condition of the system compared with its
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9807130056 980611
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ADOCK 05000336
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- Mr. M. L. Bowling
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licensing bases, the accuracy of the as-built configuration compared to design drawings, and the
compliance of system operations with the FSAR and the plant TSs. As discussed in the
enclosed report, the inspection team identified eight violations. Some violations had multiple
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examples.1 One unresolved item is being considered as an ICAVP significance Level 3 finding
with the potential to be classified higher based on the results of your waterhammer analysis and
eight violations are being considered as ICAVP significance Level 3 findings. ICAVP
significance Level 3 findings are discrepant conditions that identify instances when a system -
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. does not meet its licensing or design bases, but the system is capable of performing its intended
function. The team further noted that you had identified, and had corrected or were correcting,
many system problems during your CMP review of the RBCCW system. In accordance with
NRC policy, the team did not issue violations for items you had previously identified and were
correcting.
The issues cited as violations in the' enclosed Notice of Violation, and the circumstances
surrounding them are described in detail in the enclosed report. - Please note that you are
required to respond to the Notice of Violation and should follow the specified instructions when
preparing your response. The NRC will use your response, in part, to determine whether further
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enforcement action is necessary to ensure compliance with regulatory requirements.
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in accordance with Title 10, Section 2.790(a), of the Code of Federal Regulations,
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(10 CFR 2.790(a)), a copy of this letter and the enclosure will be placed in the NRC Public
Document Room. Any enforcement action resulting from this inspection will be handled by this
office via separate correspondence.
Should you have any questions conceming the enclosed inspection report, please contact the'
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project manager, Mr. D. G. Mcdonald, Jr., at 301-415-1408, or the inspection team leader,
Mr. P. P. Narbut at (301) 415-2962.
Sincerely,
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Eugene V. Imbro, Deputy Director
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ICAVP Oversight
Special Projects Office
Office of Nuclear Reactor Regulation
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Docket No.:' 50-336
License No.: DPR-65
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Enclosures:
1.
2.
Inspection Report 50-336/98-202
cc w/ encl: See next page
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Mr. M L. Bowling-
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1 ces: for letter to Mr. M. L. Bowling dated:
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John Streeter, Vice President, Nuclear Oversight
J. K. Thayer, Recovery Officer, Nuclear Engineering and Support
D. Amerine, Vice President, Engineering and Support Services
' J. A. Price, Unit Director, Unit 2
P. D. Hinnenkamp, Director, Unit Operations
F. C. Rothen, Vice President, Work Services
J. Stankiewicz, Training Recovery Manager
J. Cantrell, Director, Nuclear Training
S. J. Sherman, Audits and Evaluation
L. M. Cuoco, Esquire
-J. R. Egan, Esquire
. V. Juliano, Waterford Library
"J. Buckingham, Department of Public Utility Control
S. B. Comley, We The People
State of Connecticut Designee
D. Katz, Citizens Awareness Network (CAN)
R. Bassilicas, CAN
J. M. Block, Esquire, CAN
S. P. Luxton, Citizens Regulatory Commission (CRC)
Representative T. Concannon
E. Woollacott, Co-Chairman, NEAC
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