[Federal Register Volume 87, Number 151 (Monday, August 8, 2022)]
[Notices]
[Pages 48202-48203]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-16960]
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NUCLEAR REGULATORY COMMISSION
[NRC-2022-0036]
Water Sources for Long-Term Recirculation Cooling Following a
Loss-of-Coolant Accident
AGENCY: Nuclear Regulatory Commission.
ACTION: Regulatory guide; issuance.
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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is issuing
Revision 5 of Regulatory Guide (RG) 1.82, ``Water Sources for Long-Term
Cooling Following a Loss-of-Coolant Accident.'' This revised guidance
updates the guidance for sumps and suppression pools that provide water
sources for emergency core cooling, containment heat removal, or
containment atmosphere cleanup systems. It also provides guidelines for
evaluating the adequacy and the availability of the sump or suppression
pool for long-term recirculation cooling following a loss-of-coolant
accident, and the use of containment accident pressure in determining
the net positive suction
[[Page 48203]]
head for the emergency core cooling and containment heat removal pumps.
DATES: Revision 5 to RG 1.82 is available on August 8, 2022.
ADDRESSES: Please refer to Docket ID NRC-2022-0036 when contacting the
NRC about the availability of information regarding this document. You
may obtain publicly available information related to this document
using any of the following methods:
Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC-2022-0036. Address
questions about Docket IDs in Regulations.gov to Stacy Schumann;
telephone: 301-415-0624; email: [email protected]. For technical
questions, contact the individuals listed in the FOR FURTHER
INFORMATION CONTACT section of this document.
NRC's Agencywide Documents Access and Management System
(ADAMS): You may obtain publicly available documents online in the
ADAMS Public Documents collection at https://www.nrc.gov/reading-rm/adams.html. To begin the search, select ``Begin Web-based ADAMS
Search.'' For questions regarding use of ADAMS, please contact the
NRC's Public Document Room (PDR) reference staff at 1-800-397-4209,
301-415-4737, or by email to [email protected]. The ADAMS accession
number for each document referenced (if it is available in ADAMS) is
provided the first time that it is mentioned in this document.
NRC's PDR: You may examine and purchase copies of public
documents, by appointment, at the NRC's PDR, Room P1 B35, One White
Flint North, 11555 Rockville Pike, Rockville, Maryland 20852. To make
an appointment to visit the PDR, please send an email to
[email protected] or call 1-800-397-4209 or 301-415-4737, between
8:00 a.m. and 4:00 p.m. Eastern Time (ET), Monday through Friday,
except Federal holidays
Revision 5 to RG 1.82 may be found in ADAMS under Accession No.
ML22152A114.
Regulatory guides are not copyrighted, and NRC approval is not
required to reproduce them.
FOR FURTHER INFORMATION CONTACT: Ahsan Sallman, Office of Nuclear
Reactor Regulation, telephone: 301-415-2380, email:
[email protected], and James Steckel, Office of Nuclear Regulatory
Research, telephone: 301-415-1026, email: [email protected]. Both
are staff of the U.S. Nuclear Regulatory Commission, Washington, DC
20555-0001.
SUPPLEMENTARY INFORMATION:
I. Discussion
The NRC is issuing a revision to an existing guide in the NRC's
``Regulatory Guide'' series. This series was developed to describe and
make available to the public information regarding methods that are
acceptable to the NRC staff for implementing specific parts of the
agency's regulations, to explain techniques that the staff uses in
evaluating specific issues or postulated events, and to describe
information that the staff needs in its review of applications for
permits and licenses.
Revision 5 of RG 1.82 was issued with a temporary identification
number of DG-1385 (ADAMS Accession No. ML21266A185).
Revision 5 of RG 1.82, describes an approach that may be used to
determine quality standards acceptable to the NRC staff to meet the
regulatory requirements for sumps and suppression pools that provide
water sources for emergency core cooling, containment heat removal, or
containment atmosphere cleanup systems. Revision 5 of RG 1.82 also
provides acceptable methods for evaluating the adequacy and the
availability of the sump or suppression pool for long-term
recirculation cooling following a loss-of-coolant accident, and the use
of containment accident pressure in determining the net positive
suction head for the emergency core cooling and containment heat
removal pumps.
II. Additional Information
In January 2015 the staff conducted a periodic review of Revision 4
to RG 1.82, and on January 21, 2015, the staff reported the results of
the periodic review, ``Result of Periodic Review of Regulatory Guide
1.82,'' (ADAMS Accession No. ML14345A333). Based on the results of the
periodic review, the staff concluded that a revision of RG 1.82 was
warranted.
The NRC published a notice of availability of DG-1385 in the
Federal Register on February 8, 2022 (87 FR 7209) for a 30-day public
comment period. A request from the Nuclear Energy Institute to allow
more time for members of the public to submit their comments was
accepted, and the public comment period was extended to April 8, 2022
(87 FR 13019). Public comments and staff responses to those comments
are available in ADAMS under Accession No. ML22145A479. In addition,
staff considered and addressed technical issues related to the periodic
review of RG 1.82, Revision 4.
III. Congressional Review Act
This RG is a rule as defined in the Congressional Review Act (5
U.S.C. 801-808). However, the Office of Management and Budget has not
found it to be a major rule as defined in the Congressional Review Act.
IV. Backfitting, Forward Fitting, and Issue Finality
The issuance of this regulatory guide does not constitute
backfitting as defined in section 50.109 of title 10 of the Code of
Federal Regulations (10 CFR), ``Backfitting,'' and as described in NRC
Management Directive 8.4, ``Management of Backfitting, Forward Fitting,
Issue Finality, and Information Requests,'' or affect issue finality of
any approval issued under 10 CFR part 52, ``Licenses, Certificates, and
Approvals for Nuclear Power Plants,'' because, as explained in this
regulatory guide, licensees are not required to comply with the
positions set forth in this regulatory guide.
V. Submitting Suggestions for Improvement of Regulatory Guides
A member of the public may, at any time, submit suggestions to the
NRC for improvement of existing RGs or for the development of new RGs.
Suggestions can be submitted on the NRC's public website at https://www.nrc.gov/reading-rm/doc-collections/reg-guides/contactus.html.
Suggestions will be considered in future updates and enhancements to
the ``Regulatory Guide'' series.
Dated: August 3, 2022.
For the Nuclear Regulatory Commission.
Meraj Rahimi,
Chief, Regulatory Guide and Programs Management Branch, Division of
Engineering, Office of Nuclear Regulatory Research.
[FR Doc. 2022-16960 Filed 8-5-22; 8:45 am]
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