ML20064H003
| ML20064H003 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 02/14/1994 |
| From: | Mcdonald D Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20064H007 | List: |
| References | |
| NUDOCS 9403170108 | |
| Download: ML20064H003 (7) | |
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i UNITED STATES NUCLEAR REGULATORY COMMISSION BALTIM0RE GAS AND ELECTRIC COMPANY DOCKET NOS. 50-317 AND 50-318 NOTICE OF CONSIDERATION OF ISSUANCE OF AMENDMENTS TO FACILITY OPERATING LICENSES. PROPOSED N0 SIGNIFICANT HAZARDS I
CONSIDERATION DETERMINATION. AND OPPORTUNITY FOR A HEARING 1
j The U.S. Nuclear Regulatory Commission (the Commission) is considering issuance of amendments to Facility Operating License Nos. DPR-53 and DPR-69 issued to Baltimore Gas and Electric Company (the licensee) for operation of the Calvert Cliffs Nuclear Power Plant, Unit Nos. I and 2, located in Calvert County, Maryland.
The proposed amendments would allow the removal of an orifice plate in the containment vent / purge line to allow greater flow through the line.
The restoration of full flow capability will result in less time required to vent the containment. A reanalysis of the maximum hypothetical accident, as currently described in the Updated Final Safety Analysis Report, was performed I
to support the requested amendments.
The results of the reanalysis indicate I
that the consequences of the accident previously analyzed would be increased.
l Although the consequences result in an increase in the fission product release, the total doses are well within the limits of 10 CFR Part 100,
" Factors to be considered when evaluating sites."
Before issuance of the proposed license amendments, the Commission will have made findings required by the Atomic Energy Act of 1954, as amended (the Act) and the Commission's regulations.
1 9403170108 940214 PDR ADOCK 05000317 P
. W-C The Commission has made a proposed determination that the amendments request involves no significant hazards consideration. Under the Commission's regulations in 10 CFR 50.92, this means that operation of the facility in accordance 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. As required by 10 CFR 50.91(a), the licensee has provided its analysis of the issue of no significant hazards consideration, which is presented below:
1.
involve a significant increase in the probability or consequences of an accident previously evaluated; or This proposed change does not involve an increase in the probability of an accident previously evaluated. The removal of the orifice plate will decrease the amount of time the containment vent / hydrogen purge line is open to accomplish containment venting. This decreases the probability of occurrence of a maximum hypothetical accident while venting.
In addition, this proposed change would not affect any precursors to any of the accidents in the Updated Final Safety Analysis Report.
However, this proposed change does involve an increase in the consequences of an accident previously evaluated.
In the worst case event, a maximum hypothetical accident, the exclusion area whole body dose and the low population zone thyroid and whole body doses increased above the previously approved doses.
This increase is not significant.
In fact, the offsite doses presented here are similar to those reported in the NRC's Safety Evaluation Report [ Safety Evaluation of the Baltimore Gas and Electric Company's Calvert Cliffs Nuclear Power Plant, Unit Nos. I and 2, dated August 28, 1972]. Other accident scenarios were evaluated to determine if this change would ir.yact them as well. No other accident scenario is impacted by this change. Therefore, removal of the orifice plate in the containment vent / hydrogen purge line does not involve a significant increase in the probability or consequences of an accident previously evaluated.
2.
create the possibility of a new or different type of accident from any accident previously evaluated; or
. W-The proIosed change affects a previously evaluated accident, but creates no new or different type of accident. The equipment required to mitigate the consequences of an accident would continue to be operable.
We are not proposing to alter the function of any equipment or have it operate differently than it was designed to operate.
In fact, we are restoring the containment vent / hydrogen purge line to full flow capability by re;;;cval of an orifice plate.
Therefore, this change does not create the possibility of a new or different type of accident from any accident previously evaluated.
3.
involve a significant reduction in a margin of safety.
The margin of safety defined by 10 CFR Part 100 has not been significantly reduced.
There will be an increase in the exclusion area and low population zone doses, but the total dose is still significantly less than the guidelines given in 10 CFR Part 100.
Additionally, the NRC has previously calculated offsite dose for Calvert Cliffs [ Safety Evaluation of the Balti:nore Gas and Electric Company's Calvert Cliffs Nuclear Power Plant, Unit Nos. I and 2, dated August 28,1972] using assumptions similar to those used for the analysis performed in support of this request. The NRC's results are similar to those obtained from our calculations. The increase in dose does not af4 ct any conclusions stated in the NRC's SER.
Therefore, the margin of safety has not been significantly reduced.
The NRC staff has reviewed the licensee's analysis and, based on this review, it appears that the three standards of 10 CFR 50.92(c) are satisfied.
Therefore, the NRC staff proposes to determine that the amendments request involves no 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.
Normally, the Comission will not issue the amendments until the expiration of the 30-day notice period. However, should circumstances change i
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 30-day notice
a W-period, provided khat its final determination is that the amendments involve no significant hazards consideration.
The final determination will consider all public and State coments received.
Should the Comission take this action, it will publish in the FEDERAL REGISTER a notice of issuance and provide for opportunity for a hearing after issuance.
The Commission expects that the need to take this action will occur very infrequently.
Written coments may be submitted by mail to the Rules Review and Directives Branch, Division of Freedom of Information and Publications Services, Office of Administration, U.S. Nuclear Regulatory Comission, Washington, DC 20555, and should cite the publication date and page number of this FEDERAL REGISTER notice. Written coments 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. Federal workdays.
Copies of written comments received may be examined at the NRC Public Document Room, the Gelman Building, 2120 L Street, NW., Washington, DC 20555.
The filing of requests for hearing and petitions for leave to intervene is discussed below.
By March 28, 1994
, the licensee may file a request for a hearing with respect to issuance of the amendments to the subject facility operating licenses 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 request for a hearing and a petition for leave to intervene.
Requests for a hearing and a petition for leave to intervene shall be filed in accordance with the Comission's " Rules of Practice for Domestic Licensing Proceedings"
. W-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, NW., Washington, DC 20555 and at the local public document room located at the Calvert County Library, Prince Frederick, Maryland 20678.
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 Commission 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 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 ts 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 15 days prior to the first prehearing conference scheduled in the proceeding, but such an amended petition must satisfy the specificity requirements described above.
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Notlaterthkn15dayspriortothefirstprehearingconferencescheduled 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 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 informatio, 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 amendments 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.
. W-If the final determination is that the amendments request involves no significant hazards consideration, the Comission may issue the amendments and make them imediately effective, notwithstanding the request for a hearing.
Any hearing held would take place after issuance of the amendments.
If the final determination is that the amendments request involves a significant hazards consideration, any hearing held would take place before the issuance of any amendments.
A request for a hearing or a petition for leave to intervene must be filed with the Secretary of the Comission, U.S. Nuclear Regulatory Comission, Washington, DC 20555, Attention: Docketing and Services Branch, or may be delivered to the Comission's Public Document Room, the Gelman Building, 2120 L Street, NW., Washington, DC 20555, by the above date. Where petitions are filed during the last 10 days of the notice period, it is requested that the petitioner promptly so inform the Comission by a toll-free telephone call to Western Union at 1-(800) 248-5100 (in Missouri 1-(800) 342-6700).
The Western Union operator should be given Datagram Identification Number N1023 and the following message addressed to Robert A.
Capra, Director, Project Directorate I-1: 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 Counsel, U.S. Nuclear Regulatory Comission, Washington, DC 20555, and to Jay E. Silbert, Esquire, Shaw, Pittman, Potts and Trowbridge, 2300 N Street, NW., Washington, DC 20037, attorney for the licensee.
. W-Nontimely fi ings of petitions for leave to intervene, amended petitions, supplemental petitions and/or requests for hearing will not be entertained absent a determination by the Comission, 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 the amendments dated November 4,1993, which is available for public inspection at the Comission's Public Document Room, the Gelman Building, 2120 L Street, NW., Washington, DC 20555 and at the local public document room located at the Calvert County Library, Prince Frederick, Maryland 20678.
Dated at Rockville, Maryland, this 14th day of February.
FOR THE NUCLEAR REGULATORY COMMISSION Daniel G. Mcdonald, Project Mana er Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
February 14, 1994 Docket Nos. 50-317 Distribution:
and 50-318 Docket File DMcDonald NRC & Local PDRs OGC Mr. Robert E. Denton PDI-l Reading DHagan, MNBB 3206 Vice President - Nuclear Engergy SVarga ACRS (10)
Baltimore Gas & Electric Company JCalvo OPA Calvert Cliffs Nuclear Power Plant RAcapra OC/LFDCB 1650 Calvert Cliffs Parkway CVogan CCowgill, RGN-I Lusby, Maryland 20657-4702
Dear Mr. Denton:
SUBJECT:
NOTICE OF CONSIDERATION OF ISSUANCE OF AMENDMENTS TO FACILITY OPERATING LICENSES, PROPOSED NO SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION, AND OPPORTUNITY FOR A HEARING, CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT N05. 1 AND 2 (TAC NOS. M88191 AND M88192)
The Commission has requested the Office of the Federal Register to publish the enclosed " Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing." This notice relates to your application for amendments dated November 4,1993, which would allow the removal of an orifice plate in the containment vent / hydrogen purge line to allow greater flow through the line.
The restoration of full flow capability will result in less time required to vent the containment.
A reanalysis of the maximum hypothetical accident, as currently described in the Updated Final Safety Analysis Report, was performed to support the requested amendments.
Sincerely, Original signed by:
Daniel G. Mcdonald, Senior Project Manager Project Directorate I-l Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Enclosure:
Notice of Consideration cc w/ enclosure:
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OFFICIAL RECORD COPV FILENAME: CC88191.LTR
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