ML20148C853
| ML20148C853 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 01/13/1988 |
| From: | Donohew J NRC OFFICE OF SPECIAL PROJECTS |
| To: | |
| Shared Package | |
| ML20148C859 | List: |
| References | |
| NUDOCS 8801250277 | |
| Download: ML20148C853 (9) | |
Text
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s 7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION l
TEhNESSEE VALLEY AUTHORITY j
DOCKET NOS. 50-327 AND 50-328 NOTICE OF CONSIDEPATION OF ISSUANCE OF AMENDMENTS TO FACILITY GPERATING LICENSES AND PROPOSED NO SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION AND OPPORTUNITY FOR HEARING The U.S. Nuclear Regulatory Commission (the Commission) is considering j
issuance of amendments to Facility Operating License No. DPR-77 and Facility Operating License No. DPR-79, issued to the Tennessee Valley Authority (the licensee), for operation of the Sequoyah Nuclear Plant, Units 1 and 2,.
i located in Hamilton County, Tennessee.
The proposed amendments are in response to the licensee's submittal dated January 11, 1988.
The proposed amendments would revise the Technical Specification (TS) surveillance requirement 4.7.7.e.3 (Units 1 and 2) to allow up to 1000 cubic feet per minute intake of fresh air to the control room during operation of the control room emergency ventilation system (CREVS).
Because of the potential for impacting the heatup of Sequoyah Nuclear Plant, Unit 2, the licensee has requested these proposed TS amendments be i
processed on an emergency basis or as expeditiously as possible.
TVA has stated the proposed TS changes are a result of hardware related defiutencies which were previously unidentified.
TVA has actively pursued numerous parallel paths in an attempt to meet the existing surveillance requirements. At the point where it was indicated that a TS change was required, the change package was developed with the highest priority, 8801250277 880113 r
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NRC has reviewed the circumstances resulting in the submittal of the proposed TS changes.
It is desirable to prcmptly act on this change in order to assure operational and procedural continuit" of the Sequoyah (SON) heatup. Accordingly, NRC staff has determined that sufficient justification exists for consideration of these amendments on an exigent basis.
Eofore issuance of the proposed license amendments, the Commission will have made findings reouired by the Atomic Energy Act of 1954, as amended (tbe i
Act) and the Comission's regulations.
The Comission has made a proposed determination that the amendment request involves no significant hazards considerations. Under the Commission's regulations in 10 CFR 50.92, this means that operation of the facility in accordance
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with the proposed amendments 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.
FRC staff has reviewed the licensee's proposed application and has determined that an increase in control room filtered fresh air intake from 200 cubic feet per minute (CFM) to 61000 cfm does not affect the probability of any accident previously evaluated.
Rather, this change results in a very small increase in the worst case postulated control room operator d% e. from 1.1 to 1.5 rem. This increase s insignificant and well below the 10 CFR 50 Appendix A, Criterion 19 limit af 5 rem.
There appear to be no other affects on the consequences of any accident previous analyzed.
T
t 3-NRC staff has also determined that the proposed TS changes do not create the possibility of a new or different kind of accident from any previously analyzed because the function and operation of the CREVS is unchanged. The percentage of fresh air intake with resoect to r circulated air is the only e
change proposed and, therefore, would not create a new accident.
The proposed TS changes do not involve a significant reduction in a margin of safety. Although there is a very small increase in the calculated worst case postulated dose to the control room operators, the dose still remains less than one-third of the dose limit specified in 10 CFR 50 Appendix A, Criterion 19, and there are no systems, equipment, or co7onents adversely affected.
TVA has pec"ided the following analysis:
Operation of SON in accordance with the proposed amendment will not:
(1)
Involve a significant increase in the probability or consequences, of an accident previously evaluated.
CREVS is an enaineered safety features (ESF) system designed to recirculate a portion of the control rcom air through cleanup trains composed of high efficiency particulate attenuation (HEPA) filters and charcoal absorbers.
The system also supplies a stream of fresh air to the control rocm to keep it pressurized relative to the outdoors and the adjacent areas of the plant. This fresh air is processed by the cleanup trains described above.
This serves to minimize the inleakage of unfiltered, contaminated air irdo the control room.
Calculations have shown that increasing the fresh air maxeup flow up to 1000 cfm will not increase the postulated control room operator doses above 10 CFR 50 Appendix A limits.
Increasing the makeup flow also ensures proper pressurization of the control room, minimizing any unfiltered inleakage.
(2) Create the possibility of a new or different kind of accident from any previously analyzed.
'ncreasing the makeuo flow to tne control room h6s only minor effects on control room operatcr dose, and en wres 6dequate control room pressuri7ation.
The function and operation of CREVS is otherwise unens.nged, r
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(3)
Involve a significant reduction in a margin of safety. Calculaticrs have shown that there are small changes in control room operator dose as a result of increasing the filtered makeup flow to the control room. The resultant doses, however, remain well below the limits of 10 CFR 50 Appendix A, Criterion 19. Additionally, the increased makeup flow l
ensures that the control room is adequately 9ressurized, minimizing the potential for unfiltered inleakage.
TVA has evaluated the proposed TS cht.np and determined that it does not represent a significant hazards considerttion based on criteria I
established in 10 CFR 50.92(c).
l The staff has reviewed the licensee's no significant hazards consideration 1
l determination as discussed above and carees with the licensee's conclusion l
that this action does not involve a significant hazards consideration.
Therefore, the Commission proposes to determine that this change does not involve significant hazards consideration, j
l The Comission is seeking public comments on this proposed determinati.'on.' >
I Any comments received within 15 days after the date of publication of this notice will be considered in making any final determination.
Written coments may be submitted by mail to the Rules and Procedures Branch, Division of Rules and Records, 0.'fice of Administration and Resourc:s Management, U. S. Nuclear Regulatory Comission, Washington, D.C. 20555, :nd should cite the publication date and page number of the FEDERAL. REGISTEP notice, j
Written comments may also be delivered to Room 4000, Maryland National Bank Building, 7735 Old Georgetown Road, Bethesda, Maryland from 8:15 a.m. to 5:00 p.m.
Copies of written comments received may be examined at the NRC Public Docurrent Room,1717 H Street, NW,, Washington, D.C.
The filing of requests for hearing and petitions for leave to intervene is discussed below, r
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' By February 16. 1988, the licensee may file a request for a hearing with respect to issuance of the anndments to the suoject facility operating licenses and any person whose interest may be affected by this coceeding 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 "Rule of Practice 'or Comestic Licensing Proceedings" in 10 CFR Part 2.
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 Comission 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.ith particularity the interest of the petitioner in the prnceeding, and how that interest may be affected by the results of the proceeding. The petition should specifically explain the reasons why intervention shculd 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 pr
- eding as to which petitioner wishes to intervene.
Any person who I.-
'ed 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 pre-F hearing conference scheduled in the proceeding, but such an amended petition must satisfy the specificity requirements described above.
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' Not later than fifteen (15) days prior to the first prehearing conference scheduled in the proceedino, a petitioner shall file a supplement to the petition to intervene, which must include a list of the contentions that are sought to be litigated in the matter, and the bases for each contention set forth with reason-able specificity. Contentions shall be limited to matters within the scope of the amendmer.t under consideration. A petitioner who fails to file such a supple-ment which satisfies these requiremer.ts with respect to at least one contention will not be permitted '.o participate as a party.
Those permittea to intervene become parties to the proceeding, subject to ar.y 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 evide".ce and c.'oss-examins witnesses.
If the amendments are issued before the expi*ation of 30 days, the Comission will make a final determinaticn on the issue of no significant hazards consider-ations.
If a hearing is requested, the final determination will serve to decide when the hearing is held.
If the final determination is that the amendment reccest involves no significant hazards considerations, the Comission may issue the amendments and make them effective, notwithstanding the request for a hearing. Any hearing held would take place after issuance of the amendicents.
If the final determination is that the amendment request involves signifi-cant hazards considerations, any hearing held would take place before the issuance of any amendment, r
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' Normally, the Commission will not issue the amendments until the expiration of the 15-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 amendments before the expiration of the 15-day notice period, provided that its final determination is that the amendments involve no significant hazards considerations. The final determination will consider all public and State comments received.
A request for a hearing or a petition for leave to intervene must 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,1717 H 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 reauestec
'it the petitioner promptly so inform the Ccmmission by a toll-free telephone call to Western Union at (800) 325-6000 (in Missouri (800) 342-6700).
The Western Union operator should be given Datagram Identification Number 3737 and the following message accressed to Gary G. Zech, Assiscant Director for Projects:
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 the Office of the General Ccunsel, U.S. Nuclear Peculatory Co;, mission, Washington, D.C.
20555, and to Ceneral Counsel, Tennessee Valley Authority, 400 West Sumnit Hill Drive, E11 B33, Knoxville, Tennessee 37902.
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' 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 amendments dated January 11, 1988, which is available for public inspection at the Comission's Public Document Room,1717 H Street, NW, Washington, D.C.
20555, and at the Local Public Document Room, Chattanooga-Hamilton County Library, 1001 Broad Street, Chattanooga, Tennessee 37402.
Dated at Bethesda, Maryland, this 13th day of January 1988.
FOR THE NUCLEAR REGULATORY COMMISSION i
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' Jack H. Donohew, Act g Assistant Director i
for Projects dTVAProjectsDivision Office of Special Projects l
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Projects Reading TRotella CJamerson January 13, 1988 DOCKET NO.
50-327/328 Rules and Procedures Branch MEMORANDUM FOR:
Division of Rules and Records Office of Administration FROM:
OfficeofMOXOMMXMMM Special Projects
SUBJECT:
TENNESSEE VALLEY AUTHORITY, SEQUOYAH HUCLEAR PLANT, UNITS 1 AND 2 One signed original of the federal Register Notice identified below is enclosed for your transmittal to the Office of the Federal Register for publication. Additional conformed copies ( 5
)of the Notice are enclosed for your use.
Notice of Receipt of Application for Construction Permit (s)and Operating License (s).
Notice of Receipt of Partial Application for Construction Permit (s)and Facility License (s): Time for Submission of Views on Antitrust Matters.
Notice of Consideration of issuance of Amendment to Facility OperatinD License.
' Notice of Receipt of Application for Facility License (s); Notice of Availability of Applicant's Environmental Report; and Notice of Consideration of issuance of Facility License (s)and Notice of Opportunity for Hearing.
Notice of Availability of NRC Draft / Final Environmental Statement.
Notice of Limited Work Authorization.
Notice of Availability of Safety Evaluation Report.
Notice of issuance of Construction Permit (s).
Notice of issuance of Facility Operating License (s) or Amendment (s).
Order.
Exemption.
Notice of Granting Exemption.
Environmental Assessment.
I tJotice of Preparation of Environmental Assessment.
h Other Notice of Consideration of issuance of amendments to facility operating licenses and proccied no significant hazards consideration detemination and opportunity for hearing. (Exigent) y 5 /./ ( [b t M )Det# K00fXXTXRNMX Office of Special Projects Encicsure:
As stated
Contact:
Batty Wilson Phone:
49 4 3309 OSP TVA or,,cYcng:"Pat Nilson"(X2330:@ vfith 30 day date on Page- $2 son:
SURNAME >
1[t$f.bh DATED w:c ronu sie noisoi secu on4o OFFICIAL RECORD COPY I