[Federal Register Volume 75, Number 245 (Wednesday, December 22, 2010)]
[Notices]
[Pages 80544-80545]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-32140]


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NUCLEAR REGULATORY COMMISSION

[NRC-2010-0344]


NUREG-1953, Confirmatory Thermal-Hydraulic Analysis To Support 
Specific Success Criteria in the Standardized Plant Analysis Risk 
Models--Surry and Peach Bottom Draft Report for Comment

AGENCY: Nuclear Regulatory Commission.

ACTION: Announcement of reopening of public comment period

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SUMMARY: The Nuclear Regulatory Commission is re-opening the public 
comment period for the document entitled: NUREG-1953, ``Confirmatory 
Thermal-Hydraulic Analysis to Support Specific Success Criteria in the 
Standardized Plant Analysis Risk Models--Surry and Peach Bottom, Draft 
Report for Comment.'' This report was originally issued for public 
comment via Federal Register Notice [75 FR 69140-69141], dated November 
10, 2010 (NRC-2010-0344).

DATES: Please submit comments by February 28, 2011. Comments received 
after this date will be considered if it is practical to do so, but the 
NRC staff is able to ensure consideration only for comments received on 
or before this date.

ADDRESSES: You may submit comments by any one of the following methods. 
Please include Docket ID NRC-2010-0344 in the subject line of your 
comments. Comments submitted in writing or in electronic form will be 
posted on the NRC Web site and on the Federal rulemaking Web site 
Regulations.gov. Because your comments will not be edited to remove any 
identifying or contact information, the NRC cautions you against 
including any information in your submission that you do not want to be 
publicly disclosed.
    The NRC requests that any party soliciting or aggregating comments 
received from other persons for submission to the NRC inform those 
persons that the NRC will not edit their comments to remove any 
identifying or contact information, and therefore, they should not 
include any information in their comments that they do not want 
publicly disclosed.
    Federal Rulemaking Web site: Go to http://www.regulations.gov and 
search for documents filed under Docket ID NRC-2010-0344. Address 
questions about NRC dockets to Carol Gallagher 301-492-3668; e-mail: 
[email protected].
    Mail comments to: Cindy Bladey, Chief, Rules, Announcements, and 
Directives Branch (RADB), Division of Administrative Services, Office 
of Administration, Mail Stop: TWB-05-B01M, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001, or by fax to RADB at 301-492-
3446.
    You can access publicly available documents related to this notice 
using the following methods:
    NRC's Public Document Room (PDR): The public may examine and have 
copied, for a fee, publicly available documents at the NRC's PDR, 
Public File Area O1 F21, One White Flint North, 11555 Rockville Pike, 
Rockville, Maryland.
    NRC's Agencywide Documents Access and Management System (ADAMS): 
Publicly available documents created or received at the NRC are 
available

[[Page 80545]]

electronically at the NRC's Electronic Reading Room at http://www.nrc.gov/reading-rm/adams.html. From this page, the public can gain 
entry into ADAMS, which provides text and image files of NRC's public 
documents. If you do not have access to ADAMS or if there are problems 
in accessing the documents located in ADAMS, contact the NRC's PDR 
reference staff at 1-800-397-4209, 301-415-4737, or by e-mail to 
[email protected]. NUREG-1953 is available electronically under 
ADAMS Accession Number ML102940233.
    Federal Rulemaking Web site: Public comments and supporting 
materials related to this notice can be found at http://www.regulations.gov by searching on Docket ID: NRC-2010-0344.

FOR FURTHER INFORMATION CONTACT: Donald Helton, Division of Risk 
Analysis, Office of Nuclear Regulatory Research, U.S. Nuclear 
Regulatory Commission, Washington, DC 20555-0001. Telephone: 301-251-
7594, e-mail: [email protected].

SUPPLEMENTARY INFORMATION: NUREG-1953, ``Confirmatory Thermal-Hydraulic 
Analysis to Support Specific Success Criteria in the Standardized Plant 
Analysis Risk Models--Surry and Peach Bottom, Draft Report for 
Comment,'' investigates specific thermal-hydraulic aspects of the Surry 
and Peach Bottom Standardized Plant Analysis Risk models, with the goal 
of further strengthening the technical basis for decisionmaking that 
relies on the SPAR models. This analysis employs the MELCOR computer 
code to analyze a number of scenarios with different assumptions.

    Dated at Rockville, Maryland, this 15th day of December, 2010.

    For the Nuclear Regulatory Commission.
Kevin A. Coyne,
Chief, Probabilistic Risk Assessment Branch, Division of Risk Analysis, 
Office of Nuclear Regulatory Research.
[FR Doc. 2010-32140 Filed 12-21-10; 8:45 am]
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