ML20042A147
| ML20042A147 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 03/09/1982 |
| From: | Shewmon P Advisory Committee on Reactor Safeguards |
| To: | Palladino N NRC COMMISSION (OCM) |
| Shared Package | |
| ML20042A144 | List: |
| References | |
| NUDOCS 8203230139 | |
| Download: ML20042A147 (2) | |
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UNITED STATES 4
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,I ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, D. C. 20555 March 9, 1982 Honorable Nunzio J. Palladino Chairman U. S. Nuclear Regulatory Commission Washington, DC 20555
SUBJECT:
REPORT ON CLINTON POWER STATION UNIT 1
Dear Dr. Palladino:
its 263rd meeting, March 4-6, 1982, the Advisory Committee on During Reactor Safeguards reviewed the application of the Illinois Power Company, the Soyland Power Cooperative, Inc., and the Western Illinois Power Cooperative, Inc. (Applicant) for a ifcense to operate the Clinton Power Station Unit 1.
The plant is to be operated by the Illinois Power
(
A tour of the facility was made by members of the Subcommittee Company.
on the morning of February 25, 1982 and a Subcommittee meeting was held 25-26, 1982 to consider this applica-in Decatur, Illinois on February During its review the Committee had the benefit of discussion with tion.
The Committee also representatives of the Applicant and the NRC Staff.
had the benefit of the documents listed.
The Committee commented on the application for a permit to construct this Station in its report dated April 8,1975.
The Clinton Power Station is located in DeWitt County in east-central Illinois about 6 miles east of the city of Clinton and 22 miles north-Unit i uses a General Electric BWR-6 nuclear steam northeast of Decatur.
supply system with a rated power level of 2894 MWt and a Mark III pres-sure suppression containment system with a design pressure of 15 psig.
1 is about 85% complete and Unit 2 is about 3%
Construction of Unit Construction of Unit 2 has been deferred indefinitely, and complete.
the Applicant's motion to sever the Unit 2 proceedings from Unit 1 licensing proceedings has been granted. Consequently, both the Committee and the NRC Staff have limited this review to Unit 1.
The Committee's review included an evaluation of the management organi-The Clinton staff, and the training program.
zation, the operational Power Station is the Applicant's first nuclear station and staffing for The Applicant, however, plant startup and operation is not yet complete.has made considerable The NRC' Staff will continue to monitor the Applicant's progress gram.
and expects to complete its review before fuel loading.
The Applicant is currently restructuring the construction and operational quality assurance and quality control organization in response to NRC The revised organization will be reviewed and audited by Staff concernt. The Committee wishes to be kept informed on this matter.
the NRC Staff.
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Honorable Nunzio J. Palladino March 9, 1982 The Mark III suppression pool dynamic loads have been identified as an Outstanding Issue in the NRC Staff's review.
The NRC Staff has provided the Applicant with a proposal for the appropriate design basis loads, and it appears that the Clinton design will be able to accommodate these loads. The Committee will continue to discuss, on a generic basis, the Mark III suppression pool dynamic loads with the NRC Staff.
Hydrogen control systems for Mark III containments are being developed by the Mark III Owners Group.
Efforts by this Owners Group are being directed toward the development of a hydrogen ignition system which makes use of distributed ignition sources.
The NRC Staff has indicated that they will be able to meet with the Committee on this matter in the near future.
The Committee expects to review this system on a generic basis.
Acceptability of this system is a License Condition.
The Applicant, in response to NRC Staff requirements, has reevaluated certain safety-related systems of the Clinton design using the ground motion parameters that describe the site-specific spectra equivalent to equal to 5.8.
The Applicant has reana-a design basis earthquake of Mb lyzed what he believes to be the limiting structures and components using this new response spectrum and has concluded that all Seismic Category 1 structures will withstand the design basis earthquake.
Work by the Applicant is continuing.
The Committee believes that specific attention should be given to the seismic capability of the emergency AC power supplies, the DC power supplies, and small components such as actuators and instrument lines that are part of the decay heat removal system.
This matter should be resolved in a manner satisfactory to the NRC Staff. The Committee wishes to be kept infonned.
In its Safety Evaluation Report dated February 1982, the NRC Staff has identified a number of Unresolved Safety Issues as being applicable to Clinton as well as a number of Outstanding Issues, Confirmatory Issues, and License Conditions.
We believe that if due consideration is given to these matters and to our recommendations above, and subject to satis-factory completion of construction, staffing, and preoperational testing, there is reasonable assurance that the Clinton Power Station Unit I can be operated at power levels up to 2894 MWt without undue risk to the health and safety of the public.
3 Si ncerely,
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P. Shewmon Chairman References 1.
Illinois Power Company, et al., " Final Safety Analysis Report, Clinton Power Station Units 1 and 2" with Amendments 1-12.
2.
U.S. Nuclear Regulatory Commission, " Safety Analysis Report Related to the Operation of Clinton Power Station Unit 1,"
NUREG-0853, dated February 1982.
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