Duke Power Company LLC, et al.; Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing, 12835-12837 [E7-4941]

Agencies

• NUCLEAR REGULATORY COMMISSION

[Federal Register Volume 72, Number 52 (Monday, March 19, 2007)]
[Notices]
[Pages 12835-12837]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-4941]


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NUCLEAR REGULATORY COMMISSION

[Docket Nos. 50-369 and 50-370]


Duke Power Company LLC, et al.; Notice of Consideration of 
Issuance of Amendments to Facility Operating Licenses, Proposed No 
Significant Hazards Consideration Determination, and Opportunity for a 
Hearing

    The U.S. Nuclear Regulatory Commission (the Commission) is 
considering issuance of an amendment to Facility Operating License Nos. 
NPF-9 and NPF-11 issued to Duke Power Company LLC, et al., for 
operation of the McGuire Nuclear Station, Units 1 and 2, located in 
Mecklenburg County, North Carolina.
    The proposed amendments would approve changes to the current 
licensing bases for the McGuire Nuclear Station, Units 1 and 2, 
emergency core cooling system containment sump strainers.
    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 amendment 
request involves no significant hazards consideration. Under the 
Commission's regulations in Title 10 of the Code of Federal Regulations 
(10 CFR), Part 50, Section 50.92, this means that operation of the 
facility 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. 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. Does the proposed amendment involve a significant increase in 
the probability or

[[Page 12836]]

consequences of an accident previously evaluated?
    Response: No.
    Implementation of the proposed amendment does not significantly 
increase the probability or the consequences of an accident 
previously evaluated. The ECCS [emergency core cooling system] 
containment sump functions in the mitigation of a Loss of Coolant 
Accident (LOCA). It is not an accident initiator.
    Commitments to Regulatory Guide 1.82, Rev 0, as currently 
described in the UFSAR [Updated Final Safety Analysis Report], are 
being revised to establish appropriate exceptions associated with 
the modified ECCS sump strainer design. This modified ECCS 
containment sump assembly, consisting of a complex geometry, and 
crediting all effective strainer surface area, was designed using 
the methodology contained in NEI 04-07, ``Pressurized Water Reactor 
Sump Performance Evaluation Methodology,'' Rev 0, and the associated 
NRC [Nuclear Regulatory Commission] Safety Evaluation Report.
    Removal of the implied licensing basis requirement to physically 
separate the containment sump into two halves or provide ECCS train 
separation within the same containment sump will not impact the 
assumptions made in Chapter 15 of the McGuire UFSAR. There are no 
changes in any failure mode or effects analysis associated with this 
change. Since there are no credible failures which could result in 
the introduction of debris within the strainer assembly, the need to 
provide this physical separation is not warranted.
    Although the configurations of the existing ECCS containment 
sump trash racks and screen and the replacement sump strainer 
assemblies are different, they serve the same fundamental purpose of 
passively removing debris from the sump's suction supply of the 
supported system pumps. Removal of trash racks does not impact the 
adequacy of the pump NPSH [net positive suction head] assumed in the 
safety analysis. Likewise, the change does not reduce the 
reliability of any supported systems or introduce any new system 
interactions. The greatly increased surface area of the modified 
strainer is designed to reduce head loss.
    Thus, based on the above, the proposed change does not involve a 
significant increase in the probability or consequences of an 
accident previously evaluated.
    2. Does the proposed amendment create the possibility of a new 
or different kind of accident from any accident previously 
evaluated?
    Response: No.
    The proposed amendment will not create the possibility of a new 
or different kind of accident. The ECCS containment sump strainer 
serves as a passive component of the ECCS accident mitigation 
system. It is, therefore, not an accident initiator. The modified 
design requirements result in a strainer that performs the same 
functions in the same manner as the original design, such that no 
different kind of accident is created.
    A change to McGuire Technical Specification Surveillance 
Requirement [SR] 3.5.2.8 does not alter the nature of events 
postulated in the Safety Analysis Report nor do they introduce any 
unique precursor mechanisms.
    Therefore, the proposed changes will not create the possibility 
of a new or different kind of accident from any accident previously 
evaluated.
    3. Does the proposed amendment involve a significant reduction 
in the margin of safety?
    Response: No.
    Margin of safety is related to the confidence in the ability of 
the fission product barriers to perform their design functions 
during and following an accident situation. These barriers include 
the fuel cladding, the reactor coolant system, and the containment 
system. The performance of the containment system, fuel cladding, 
and the reactor coolant system will not be impacted by the proposed 
change.
    Duke's [the licensee's] evaluation concludes that there are no 
credible failure mechanisms applicable to the modified ECCS 
containment sump strainer design. The revised design requirements 
result in enhanced strainer performance under more conservative 
debris loading assumptions.
    The proposed change to Technical Specification SR 3.5.2.8 will 
have no effect on the manner in which safety limits, limiting safety 
system settings, or limiting conditions for operation are determined 
nor will there be any effect on those plant systems necessary to 
assure the accomplishment of protective functions. The proposed 
change does not adversely affect the fuel, fuel cladding, Reactor 
Coolant System, or containment integrity.
    Thus, it is concluded that the proposed changes do not involve a 
significant reduction in the margin of safety.

    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 
amendment 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 Commission will not issue the amendment until the 
expiration of 60 days after the date of publication of this notice. The 
Commission may issue the license amendment before expiration of the 60-
day period provided that its final determination is that the amendment 
involves no significant hazards consideration. In addition, the 
Commission may issue the amendment prior to the expiration of the 30-
day comment period should circumstances change during the 30-day 
comment period such that failure to act in a timely way would result, 
for example, in derating or shutdown of the facility. Should the 
Commission take action prior to the expiration of either the comment 
period or the notice period, it will publish in the Federal Register a 
notice of issuance. Should the Commission make a final No Significant 
Hazards Consideration Determination, any hearing will take place after 
issuance. The Commission expects that the need to take this action will 
occur very infrequently.
    Written comments may be submitted by mail to the Chief, Rulemaking, 
Directives and Editing Branch, Division of Administrative Services, 
Office of Administration, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001, and should cite the publication date and 
page number of this Federal Register notice. Written comments may also 
be delivered to Room 6D59, Two White Flint North, 11545 Rockville Pike, 
Rockville, Maryland, from 7:30 a.m. to 4:15 p.m. Federal workdays. 
Documents may be examined, and/or copied for a fee, at the NRC's Public 
Document Room (PDR), located at One White Flint North, Public File Area 
O1 F21, 11555 Rockville Pike (first floor), Rockville, Maryland.
    The filing of requests for hearing and petitions for leave to 
intervene is discussed below.
    Within 60 days after the date of publication of this notice, the 
licensee may file a request for a hearing with respect to issuance of 
the amendment to the subject facility 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 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 Commission's ``Rules of Practice for Domestic 
Licensing Proceedings'' in 10 CFR part 2. Interested persons should 
consult a current copy of 10 CFR 2.309, which is available at the 
Commission's PDR, located at One White Flint North, Public File Area 
O1F21, 11555 Rockville Pike (first floor), Rockville, Maryland. 
Publicly available records will be accessible from the Agencywide 
Documents Access and Management System's (ADAMS) Public Electronic 
Reading Room on the Internet at the NRC Web site, https://www.nrc.gov/
reading-rm/doc-collections/cfr/. If a request for a hearing or petition 
for leave to intervene is filed by the above date, the Commission or a 
presiding officer designated by the Commission or by the Chief 
Administrative Judge of the Atomic Safety and Licensing Board

[[Page 12837]]

Panel, will rule on the request and/or petition; and the Secretary or 
the Chief Administrative Judge of the Atomic Safety and Licensing Board 
will issue a notice of a hearing or an appropriate order.
    As required by 10 CFR 2.309, 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 general requirements: (1) The name, address and telephone 
number of the requestor or petitioner; (2) the nature of the 
requestor's/petitioner's right under the Act to be made a party to the 
proceeding; (3) the nature and extent of the requestor's/petitioner's 
property, financial, or other interest in the proceeding; and (4) the 
possible effect of any decision or order which may be entered in the 
proceeding on the requestors/petitioner's interest. The petition must 
also identify the specific contentions which the petitioner/requestor 
seeks to have litigated at the proceeding.
    Each contention must consist of a specific statement of the issue 
of law or fact to be raised or controverted. In addition, the 
petitioner/requestor shall provide a brief explanation of the bases for 
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/requestor 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. 
The petition must include 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/requestor 
who fails to satisfy 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.
    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 immediately effective, notwithstanding the 
request for a hearing. Any hearing held would take place after issuance 
of the amendment. If the final determination is that the amendment 
request involves a significant hazards consideration, any hearing held 
would take place before the issuance of any amendment.
    Nontimely requests and/or petitions and contentions will not be 
entertained absent a determination by the Commission or the presiding 
officer of the Atomic Safety and Licensing Board that the petition, 
request and/or the contentions should be granted based on a balancing 
of the factors specified in 10 CFR 2.309(c)(1)(i)-(viii).
    A request for a hearing or a petition for leave to intervene must 
be filed by: (1) First class mail addressed to the Office of the 
Secretary of the Commission, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001, Attention: Rulemaking and Adjudications 
Staff; (2) courier, express mail, and expedited delivery services: 
Office of the Secretary, Sixteenth Floor, One White Flint North, 11555 
Rockville Pike, Rockville, Maryland 20852, Attention: Rulemaking and 
Adjudications Staff; (3) E-mail addressed to the Office of the 
Secretary, U.S. Nuclear Regulatory Commission, HEARINGDOCKET@NRC.GOV; 
or (4) facsimile transmission addressed to the Office of the Secretary, 
U.S. Nuclear Regulatory Commission, Washington, DC, Attention: 
Rulemakings and Adjudications Staff at (301) 415-1101, verification 
number is (301) 415-1966. A copy of the request for hearing and 
petition for leave to intervene should also be sent to the Office of 
the General Counsel, U.S. Nuclear Regulatory Commission, Washington, DC 
20555-0001, and it is requested that copies be transmitted either by 
means of facsimile transmission to 301-415-3725 or by e-mail to 
OGCMailCenter@nrc.gov. A copy of the request for hearing and petition 
for leave to intervene should also be sent to the attorney for the 
licensee, Ms. Lisa F. Vaughn, Associate General Counsel and Managing 
Attorney, Duke Energy Carolinas, LLC, 526 South Church St., EC07H, 
Charlotte, NC 28202.
    For further details with respect to this action, see the 
application for amendment dated March 8, 2007, which is available for 
public inspection at the Commission's PDR, located at One White Flint 
North, Public File Area O1 F21, 11555 Rockville Pike (first floor), 
Rockville, Maryland. Publicly available records will be accessible from 
the Agencywide Documents Access and Management System's (ADAMS) Public 
Electronic Reading Room on the Internet at the NRC Web site, https://
www.nrc.gov/reading-rm/adams.html. Persons who do not have access to 
ADAMS or who encounter problems in accessing the documents located in 
ADAMS, should contact the NRC PDR Reference staff by telephone at 1-
800-397-4209, 301-415-4737, or by e-mail to pdr@nrc.gov.

    Dated at Rockville, Maryland, this 13th day of March 2007.

    For the Nuclear Regulatory Commission.
Leonard N. Olshan,
Sr. Project Manager, Plant Licensing Branch II-1, Division of Operating 
Reactor Licensing, Office of Nuclear Reactor Regulation.
[FR Doc. E7-4941 Filed 3-16-07; 8:45 am]
BILLING CODE 7590-01-P