ML13309A092
| ML13309A092 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/10/1991 |
| From: | Kalman G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML13309A091 | List: |
| References | |
| NUDOCS 9101220401 | |
| Download: ML13309A092 (7) | |
Text
7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION SOUTHERN CALIFORNIA EDISON COMPANY SAN DIEGO GAS AND ELECTRIC COMPANY DOCKET NO. 50-206 SAN ONOFRE NUCLEAR GENERATING STATION, UNIT NO. 1 NOTICE OF CONSIDERATION OF ISSUANCE OF AMENDMENT TO PROVISIONAL OPERATING LICENSE AND PROPOSED NO SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION AND OPPORTUNITY FOR HEARING The U.S. Nuclear Regulatory Commission (the Commission) is considering issuance of the amendment to Provisional Operating License No. DPR-13, issued to Southern California Edison Company and San Diego Gas and Electric Company (the licensee), for operation of the San Onofre Nuclear Generating Station, Unit No.
1, located in San Diego County, California.
The proposed amendment would revise the technical specifications (TS) to incorporate changes to the maintenance and surveillance requirements that were necessitated by the addition of a redundant isolation valve on the outlet of the Volume Control Tank. The redundant valve was added during refueling outage 11 to reduce the likelihood of a single component failure from disabling both primary system charging pumps.
The associated TS changes consist of an addition to Section 3.3.1.3 to regulate maintenance of the redundant isolation valves and the deletion of surveillance requirement 11 from Table 4.1.2. The surveillance requirement is associated with an electrical power transfer switch that was functionally replaced by the second isolation valve. The transfer switch was removed from the system as part of the modification.
The proposed amendment also corrects an editorial error in Table 4.1.2.
The editorial error was inadvertently introduced by TS Amendment 134.
9101220401 910110 PDR ADCK' 05000206 P
-2 Before issuance of the proposed license amendment, the Commission will have made findings required by the Atomic Energy Act of 1954, as amended (the Act) and the Commission's regulations.
The Commission has made a proposed determination that the request for amendment involves no significant hazards consideration. Under the Commission's regulations in 10 CFR 50.92, this means that operation of the facilities in accordance with the proposed amendment would not (1) involve a significant increase in the probability or consequences of an accident previously evaluated; or (2) create the possibility of a new or different kind of accident from any accident previously evaluated; or (3) involve a significant reduction in a margin of safety.
The NRC staff evaluated each of three criteria in the following manner:
(1) The proposed amendment does not involve a significant increase in the probability or consequences of an accident previously evaluated. The proposed amendment incorporates revised maintenance and surveillance requirements to reflect hardware changes on the outlet of the Volume Control Tank. The hardware changes consist of the addition of a redundant valve to decrease single failure susceptibility. The changes were designed to decrease the probability and consequences of previously evaluated accidents. (2) The proposed amendment does not create the possibility of a new or different kind of accident previously evaluated. The TS maintenance and surveillance requirements and the hardware changes to reduce single failure susceptibility are enhancements to the facility that reflect current safety standards. They do not create possibilities for new or different kinds of accidents. (3) The proposed amendment does not involve a significant reduction in a margin of safety. The plant modifications were designed to increase the margin of safety. There do not appear to be any
-3 negative safety features associated with the hardware modifications or with the proposed TS Amendment.
Therefore, based on the above, the staff proposes to determine that the proposed changes do not involve a significant hazards consideration.
The Commission is seeking public comments on this proposed determination.
Any comments received within 30 days after the date of publication of this notice will be considered in making any final determination. The Commission will not normally make a final determination unless it receives a request for a hearing.
Written comments may be submitted by mail to the Regulatory Publications Branch, Division of Freedom of Information and Publications Services, Office of Administration, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555, and should cite the publication date and page number of this FEDERAL REGISTER notice. Written comments may also be delivered to Room P-223, Phillips Building, 7920 Norfolk Avenue, Bethesda, Maryland, from 7:30 a.m. to 4:15 p.m. Copies of written comments received may be examined at the NRC Public Document Room, the Gelman Building, 2120 L Street N.W., Washington, D.C. The filing of requests for hearing and petitions for leave to intervene is discussed below.
By February 19, 1991, the licensee may file a request for a hearing with respect to issuance of the amendment to the subject provisional operating license and any person whose interest may be affected by this proceeding and who wishes to participate as a party in the proceeding must file a written petition for leave to intervene. Requests for a hearing and petitions for leave to intervene shall be filed in accordance with the Commission's "Rules of Practice for Domestic Licensing Proceedings" in 10 CFR Part 2. Interested persons should consult a current copy of 10 CFR 2.714 which is available at the Commission's Public Document Room, the Gelman Building, 2120 L Street, N.W., Washington,
-4 D.C. 20555 and at the local public document room located at the Main Library, University of California, P.O. Box 19557, Irvine, California 92713.
If a request for a hearing or petition for leave to intervene is filed by the above date, the Commission or an Atomic Safety and Licensing Board, designated by the Cummission or by the Chairman of the Atomic Safety and Licensing Board Panel, will rule on the request and/or petition and the Secretary or the designated Atomic Safety and Licensing Board will issue a notice of hearing or an appropriate order.
As required by 10 CFR 2.714, a petition for leave to intervene shall set forth with particularity the interest of the petitioner in the proceeding, and how that interest may be affected by the results of the proceeding. The petition should specifically explain the reasons why intervention should be permitted with particular reference to the following factors: (1) the nature of the petitioner's right under the Act to be made a party to the proceeding; (2) the nature and extent of the petitioner's property, financial, or other interest in the proceeding; and (3) the possible effect of any order which may be entered in the proceeding on the petitioner's interest. The petition should also identify the specific aspect(s) of the subject matter of the proceeding as to which petitioner wishes to intervene. Any person who has filed a petition for leave to intervene or who has been admitted as a party may amend the petition without requesting leave of the Board up to fifteen (15) days prior to the first prehearing conference scheduled in the proceeding, but such an amended petition must satisfy the specificity requirements described above.
Not later than fifteen (15) days prior to the first prehearing conference scheduled in the proceeding, a petitioner shall file a supplement to the petition to intervene which must include a list of the contentions which are sought to be litigated in the matter. Each contention must consist of a
-5 specific statement of the issue of law or fact to be raised or controverted.
In addition, the petitioner shall provide a brief explanation of the bases of the contention and a concise statement of the alleged facts or expert opinion which support the contention and on which the petitioner intends to rely in proving the contention at the hearing.
The petitioner must also provide references to those specific sources and documents of which the petitioner is aware and on which the petitioner intends to rely to establish those facts or expert opinion. Petitioner must provide sufficient information to show that a genuine dispute exists with the applicant on a material issue of law or fact. Contentions shall be limited to matters within the scope of the amendment under consideration. The contention must be one which, if proven, would entitle the petitioner to relief. A petitioner who fails to file such a supplement which satisfies these requirements with respect to at least one contention will not be permitted to participate as a party.
Those permitted to intervene become parties to the proceeding, subject to any limitations in the order granting leave to intervene, and have the opportunity to participate fully in the conduct of the hearing, including the opportunity to present evidence and cross-examine witnesses.
If a hearing is requested, the Commission will make a final determination on the issue of no significant hazards consideration. The final determination will serve to decide when the hearing is held.
If the final determination is that the amendment request involves no significant hazards consideration, the Commission may issue the amendment and make it effective, notwithstanding the request for a hearing. Any hearing held would take place after issuance of the amendment.
-6 If the final determination is that the amendment request involves a significant hazards consideration, any hearing held would take place before the issuance of the amendment.
Normally, the Commission will not issue the amendment until the expiration of the 30-day notice period. However, should circumstances change during the notice period such that failure to act in a timely way would result, for example, in derating or shutdown of the facility, the Commission may issue the license amendment before the expiration of the 30-day notice period, provided that its final determination is that the amendment involves no significant hazards consideration. The final determination will consider all public and State comments received. Should the Commission take this action, it will publish a notice of issuance and provide the opportunity for a hearing after issuance.
The Commission expects that the need to take this action will occur very infrequently.
A request for a hearing or a petition for leave to intervene shall be filed with the Secretary of the Commission, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555, Attention: Docketing and Service Branch, or may be delivered to the Commission's Public Document Room, the Gelman Building, 2120 L Street N.W., Washington, D.C., by the above date. Where petitions are filed during the last ten (10) days of the notice period, it is requested that the petitioner promptly so inform the Commission by a toll-free telephone call to Western Union at 1-800-325-6000 (in Missouri 1-800-342-6700). The Western Union operator should be given Datagram Identification Number 3737 and the following message addressed to James E. Dyer: petitioner's name and telephone number; date petition was mailed; plant name; and publication date and page number of this FEDERAL REGISTER notice. A copy of the petition should also be sent to
-7 the Office of the General Counsel, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555, and to James A. Beoletto, Esquire, Southern California Edison Company, P.O. Box 800, Rosemead, California 91770, attorney for the licensees.
Nontimely filings of petitions for leave to intervene, amended petitions, supplemental petitions and/or requests for hearing will not be entertained absent a determination by the Commission, the presiding officer or the presiding Atomic Safety and Licensing Board, that the petition and/or request should be granted based upon a balancing of the factors specified in 10 CFR 2.714(a)(1)(i)-(v) and 2.714(d).
For further details with respect to this action, see the application for amendment dated December 21, 1990, which is available for public inspection at the Commission's Public Document Room, the Gelman Building, 2120 L Street N.W.,
Washington, D.C. 20555, and at the local public document room, Main Library, University of California, P.O. Box 19557, Irvine, California 92713.
Dated at Rockville, Maryland this 10th day of January 1991.
FOR THE NUCLEAR REGULATORY COMMISSION George Kalman, Senior Project Manager Project Directorate V Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation