Applications and Amendments to Facility Operating Licenses Involving No Significant Hazards Considerations
Federal RegisterJan 15, 1997
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NUCLEAR REGULATORY COMMISSION
Biweekly Notice
Applications and Amendments to Facility Operating Licenses
Involving No Significant Hazards Considerations
I. Background
Pursuant to Public Law 97-415, the U.S. Nuclear Regulatory
Commission (the Commission or NRC staff) is publishing this regular
biweekly notice. Public Law 97-415 revised section 189 of the Atomic
Energy Act of 1954, as amended (the Act), to require the Commission to
publish notice of any amendments issued, or proposed to be issued,
under a new provision of section 189 of the Act. This provision grants
the Commission the authority to issue and make immediately effective
any amendment to an operating license upon a determination by the
Commission that such amendment involves no significant hazards
consideration, notwithstanding the pendency before the Commission of a
request for a hearing from any person.
This biweekly notice includes all notices of amendments issued, or
proposed to be issued from December 20, 1996, through January 3, 1997.
The last biweekly notice was published on January 2, 1997 (62 FR 121).
Notice Of Consideration Of Issuance Of Amendments To Facility
Operating Licenses, Proposed No Significant Hazards Consideration
Determination, And Opportunity For A Hearing
The Commission has made a proposed determination that the following
amendment requests involve 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 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. The basis
for this proposed determination for each amendment request is shown
below.
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 the 30-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 amendment before the expiration of
the 30-day notice period, provided that its final determination is that
the amendment involves no significant hazards consideration. The final
determination will consider all public and State comments received
before action is taken. Should the Commission 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 comments may be submitted by mail to the Chief, Rules
Review and Directives Branch, Division of Freedom of Information and
Publications 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 6D22, Two White Flint
North, 11545 Rockville Pike, Rockville, 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. The filing of requests for a hearing and
petitions for leave to intervene is discussed below.
By February 14, 1997, 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 2.714 which is
available at the Commission's Public Document Room, the Gelman
Building, 2120 L Street, NW., Washington, DC and at the local public
document room for the particular facility involved. 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 a 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 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 proceeding as 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.
[[Page 2186]]
Not later than 15 days prior to the first prehearing conference
scheduled 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 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 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.
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.
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, DC 20555-0001, Attention: Docketing and
Services Branch, or may be delivered to the Commission's Public
Document Room, the Gelman Building, 2120 L Street, NW., Washington DC,
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 Commission 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 (Project Director): 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 Commission, Washington, DC 20555-0001,
and to the attorney for the licensee.
Nontimely filings of petitions for leave to intervene, amended
petitions, supplemental petitions and/or requests for a hearing will
not be entertained absent a determination by the Commission, the
presiding officer or the Atomic Safety and Licensing Board that the
petition and/or request should be granted based upon a balancing of
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 amendment which is available for public inspection at
the Commission's Public Document Room, the Gelman Building, 2120 L
Street, NW., Washington, DC, and at the local public document room for
the particular facility involved.
Commonwealth Edison Company, Docket Nos. STN 50-454 and STN 50-455,
Byron Station, Unit Nos. 1 and 2, Ogle County, Illinois Docket Nos.
STN 50-456 and STN 50-457, Braidwood Station, Unit Nos. 1 and 2,
Will County, Illinois
Date of amendment request: November 4, 1996, as supplemented on
December 4, 1996.
Description of amendment request: The proposed amendment would
permit Byron, Unit 1, and Braidwood, Unit 1, to remove sheathing filler
grease in the tendon sheathing for up to 35 tendons in advance of the
steam generator replacement outages.
Basis for proposed no significant hazards consideration
determination: 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. The proposed change does not involve a significant increase
in the probability or consequences of an accident previously
evaluated.
The prestressing tendons are passive components that form part
of the containment structure. As passive components, there are no
tendon failure modes that could act as accident initiators or
precursors.
Consequently, the proposed change to remove a portion of the
tendon sheathing filler grease will not increase the probability of
an accident previously evaluated.
The tendons, in their passive role, function to limit the
consequences of accidents previously evaluated, and their continued
integrity is important to the ability of the containment to mitigate
design basis accidents. Structural degradation of the containment is
a predictable process that can be monitored by a comprehensive
containment tendon monitoring program as required by Technical
Specification Surveillance Requirement 4.6.1.6. The monitoring
program is based on proposed Revision 3 of Regulatory Guide 1.35,
``Inservice Surveillance of Ungrouted Tendons in Prestressed
Concrete Containment Structures,'' April 1979.
The tendon surveillances conducted at both Byron and Braidwood
have consistently shown that structural integrity of the tendon
system has been maintained, including adequate corrosion protection
for the tendon wires and end anchorage components, and there has
been no evidence of grease leakage from the tendon sheathings. While
a number of below-grade hoop tendons have shown signs of water
intrusion, the tendons that will have grease removed are above-grade
and are not expected to experience water intrusion.
A review of domestic nuclear facility experience found cases
where large grease voids existed for periods longer than requested
under the proposed change without resultant corrosion in those
tendon systems. A case where tendon wires removed from a
decommissioned plant were exposed to an environment more severe than
expected in a sealed tendon sheath did not show signs of corrosion.
These experiences demonstrate the effectiveness of the initial
corrosion protection systems applied to the tendons and the
effectiveness of partial grease protection in the tendon sheathing.
Based on the above cases, it can be concluded that the removal
of the filler grease (grease voids greater than 5 percent) from the
tendon sheathing in up to thirty-five tendons for a limited period
will not adversely affect the integrity of the tendons or the
capability of the tendon system to fulfill its design basis
function.
The removal process will only remove the grease not directly
adhering to the tendons. The grease remaining will be adequate to
protect the tendons during the relatively short period of partial
grease removal. Therefore, no changes in the tendon properties would
be expected, and the consequences of design basis accidents
previously evaluated will not be affected by the proposed change.
2. The proposed change does not create the possibility of a new
or different kind of accident from any accident previously
evaluated.
[[Page 2187]]
The proposed change only affects the tendon sheathing filler
grease void limits of TSSR 4.6.1.6. No new equipment is being
installed and no existing equipment is being modified. Operation
with a grease void in excess of current requirements does not alter
system configurations such that any new or different accidents can
be initiated. Therefore, no new or different accident initiators or
precursors are being introduced, and the proposed change will not
create the possibility of a new or different kind of accident from
any previously evaluated.
3. The proposed change does not involve a significant reduction
in a margin of safety.
The margin of safety applicable to the proposed change is
defined by the difference between the design pressure of the
containment and the point at which the containment would actually
fail. The design pressure of the containment is 50 psi. As a result
of conservatism inherent in the design techniques and in the
material selections made for the Byron and Braidwood containments, a
substantial margin to failure exists in the containment. This margin
is discussed in Subsection 3.8.1.8 of the Updated Final Safety
Analysis Report. It is noted therein that the ultimate capacity of
the concrete shell is 125 psi, corresponding to the initiation of
yield in the hoop post-tensioning tendons in conjunction with
yielding of the reinforcement near the mid-height of the containment
wall.
It is also noted in Subsection 3.8.1.8 that the ultimate
capacity of a containment electrical penetration is 108 psi. While
this value is substantially greater than the 50 psi required of the
design, it is lower than the 125 psi at which failure of the
containment wall section would be predicted. Therefore, tendon
strength is not the limiting factor in the margin of safety inherent
in the containment.
As previously discussed, no degradation of the tendons is
expected to occur as a result of the proposed TS change. Further,
the tendon strength is not the limiting factor in the containment
ultimate capacity, which is substantially greater than the
requirement placed on the containment design by the plant design
basis. Therefore, the proposed change will not reduce the margin of
safety designed into Byron and Braidwood.
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
requested amendments involve no significant hazards consideration.
Local Public Document Room location: For Byron, the Byron Public
Library District, 109 N. Franklin, P.O. Box 434, Byron, Illinois 61010;
for Braidwood, the Wilmington Public Library, 201 S. Kankakee Street,
Wilmington Illinois 60481.
Attorney for licensee: Michael I. Miller, Esquire; Sidley and
Austin, One First National Plaza, Chicago, Illinois 60603
NRC Project Director: Robert A. Capra
Commonwealth Edison Company, Docket Nos. 50-237 and 50-249, Dresden
Nuclear Power Station, Units 2 and 3, Grundy County, Illinois
Docket Nos. 50-254 and 50-265, Quad Cities Nuclear Power Station,
Units 1 and 2, Rock Island County, Illinois
Date of application for amendment request: December 6, 1996
Description of amendment request: The proposed amendment would
allow a single control rod to be moved when the plant is in HOT
SHUTDOWN and COLD SHUTDOWN condition provided the one-rod-out interlock
is OPERABLE and the reactor mode switch is in the refuel position.
Basis for proposed no significant hazards consideration
determination: 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 because of the
following:
This revision would allow a single control rod to be withdrawn
under control of the reactor mode switch position one-rod-out
interlock in OPERATIONAL MODES 3 or 4. This interlock is explicitly
assumed in the safety analysis for control rod removal error during
refueling. A prompt reactivity excursion could potentially result in
fuel failure. The one-rod-out interlock, together with the
requirements for adequate SHUTDOWN MARGIN (SDM), provides protection
against prompt reactivity excursions by preventing withdrawal of
more than one control rod and ensuring the core remains subcritical
with any one control rod withdrawn. The addition of surveillance
requirements for the one-rod-out interlock will assure the interlock
is OPERABLE prior to withdrawal of a control rod in OPERATIONAL
MODES 3 and 4. Although this change will increase the frequency of
single control rod withdrawals in OPERATIONAL MODES 3 and 4, the
probability of previously analyzed accidents, including control rod
withdrawal error, is not affected because the same actions are
required, although they are now conducted in different OPERATIONAL
MODES.
The consequences of previously analyzed accidents in OPERATIONAL
MODES 3 and 4 are not affected by this proposed change. The SDM
requirements of TS 3.3.A assure the reactor is maintained
subcritical when all control rods are fully inserted, without
crediting the single control rod having the highest reactivity worth
which is assumed to be fully withdrawn. The one-rod-out interlock of
the reactor mode switch Refuel position permits only a single
control rod to be withdrawn. The proposed change will not affect the
potential for attaining criticality in OPERATIONAL MODES 3 and 4 or
effect the initial conditions assumed in any design basis accident
analysis.
Based on this, the probability or consequences of any accident
previously evaluated is not increased by the proposed changes.
2) Create the possibility of a new or different kind of accident
from any accident previously evaluated because:
Single control rods can be withdrawn to permit control rod
recoupling in OPERATIONAL MODES 3 and 4 under existing TS. The
proposed change will merely expand this allowance to other control
rod maintenance and testing activities performed in OPERATIONAL
MODES 3 and 4. The revision to Specification 3/4.10.A provides
additional assurance that the one-rod-out interlock is OPERABLE in
OPERATIONAL MODES 3 and 4.
The additional control rod maintenance and testing activities
which could be performed in OPERATIONAL MODES 3 and 4 are permitted
by the existing TS in OPERATIONAL MODES 1, 2 and 5. Examples of
activities which could be performed include venting of control rods
following a reactor scram or control rod drive system outage, normal
control rod insertion/withdrawal timing and adjustment, control rod
scram time testing and control rod friction testing.
Based on this, the proposed changes do not create the
possibility of a new or different kind of accident from those
previously evaluated.
Specification 3/4.10.A is revised to ensure the one-rod-out
interlock is OPERABLE, enhancing the assurance that the plant will
prevent the withdrawal of more than one control rod in the manner
currently assumed. Expanding the applicability of this existing
requirement to OPERATIONAL MODES 3 and 4 similarly does not create
the possibility of a new or different kind of accident from those
previously evaluated.
3) Involve a significant reduction in the margin of safety
because:
The TS currently permit single control rod withdrawal for the
purpose of control rod recoupling when in OPERATIONAL MODES 3 or 4
if the one-rod-out interlock is OPERABLE. This change merely allows
additional activities for which a single control rod may be
withdrawn in OPERATIONAL MODES 3 or 4, with the same restriction
that the one-rod-out interlock is OPERABLE.
While the TS currently allow limited control rod withdrawal in
OPERATIONAL MODES 3 and 4 provided the one-rod-out interlock is
OPERABLE, no explicit surveillance requirements for the one-rod-out
interlock exist while in OPERATIONAL MODES 3 or 4. The proposed
changes to the Applicability statement in TS 3/4.10.A will result in
applicability of the Surveillance Requirements for the one-rod-out
interlock whenever control rod withdrawal is performed in
OPERATIONAL MODES 3 and 4.
Together, the OPERABILITY requirements for the one-rod-out
interlock and the SDM requirements of TS 3.3.A will continue to
ensure that the reactor will be maintained subcritical during single
control rod withdrawals. Therefore, this change will not involve a
significant reduction in the margin of safety.
[[Page 2188]]
As described, the proposed amendment for Dresden and Quad Cities
Stations will not reduce the availability of systems required to
mitigate accident conditions. Neither are new or significantly
different modes of operation proposed. Therefore, 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.
Local Public Document Room location: for Dresden, Morris Area
Public Library District, 604 Liberty Street, Morris, Illinois 60450;
for Quad Cities, Dixon Public Library, 221 Hennepin Avenue, Dixon,
Illinois 61021
Attorney for licensee: Michael I. Miller, Esquire; Sidley and
Austin, One First National Plaza, Chicago, Illinois 60603
NRC Project Director: Robert A. Capra
Entergy Operations, Inc., Docket Nos. 50-313 and 50-368, Arkansas
Nuclear One, Unit Nos. 1 and 2 (ANO-1&2), Pope County, Arkansas
Date of amendment request: October 2, 1996
Description of amendment request: Relocation of Radiological
Effluent Technical Specifications for Units 1 and 2.
Basis for proposed no significant hazards consideration
determination: 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:
Criterion 1 - Does not Involve a Significant Increase in the
probability or Consequences of an Accident Previously Evaluated.
The proposed changes are considered administrative in nature.
These changes alter only the location of programmatic controls and
procedural details relative to radioactive effluents, radiological
environmental monitoring, solid radioactive wastes, and associated
reporting requirements. Compliance with applicable regulatory
requirements will continue to be maintained. In addition, the
proposed changes do not alter the conditions and assumptions in any
of the Safety Analysis Report (SAR) accident analyses. Since the SAR
accident analyses remain bounding, the radiological consequences
previously evaluated are not adversely affected by the proposed
changes.
Therefore, this change does not involve a significant increase
in the probability or consequences of any accident previously
evaluated.
Criterion 2 - Does Not Create the Possibility of a New or
Different Kind of Accident from any Previously Evaluated.
The proposed changes do not involve any changes to the
configuration or method of operation any plant equipment. The
proposed changes are considered administrative in nature.
Accordingly, no new failure modes have been defined for any plant
system or component important to safety nor has any new limiting
single failure have been identified as a result of the proposed
changes. Also, there will be no change in types or increase in the
amounts of any radioactive effluents released offsite.
Therefore, this change does not create the possibility of a new
or different kind of accident from any previously evaluated.
Criterion 3 - Does Not Involve a Significant Reduction in Margin
of Safety.
The proposed changes do not involve nay actual change in the
methodology used in the control of radioactive effluents, solid
radioactive wastes, or radiological environmental monitoring. These
changes are considered administrative in nature and provide for the
relocation of procedural details outside the Technical
Specifications. This change adds appropriate administrative controls
in the Technical Specifications to provide continued assurance of
compliance with applicable regulatory requirements.
Therefore, this change does not involve a significant reduction
in the margin of safety. I21Therefore, based upon the reasoning
presented above and the previous discussion of the amendment
request, Entergy Operations has determined that the requested change
does not involve significant hazards consideration.
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.
Local Public Document Room location: Tomlinson Library, Arkansas
Tech University, Russellville, AR 72801
Attorney for licensee: Nicholas S. Reynolds, Esquire, Winston and
Strawn, 1400 L Street, N.W., Washington, DC 20005-3502
NRC Project Director: William D. Beckner
Entergy Operations, Inc., Docket Nos. 50-313 and 50-368, Arkansas
Nuclear One, Unit Nos. 1 and 2 (ANO-1&2), Pope County, Arkansas
Date of amendment request: October 2, 1996
Description of amendment request: Relocation of Selected Technical
Specifications Instrumentation Requirements Allowed by Generic Letter
95-10
Basis for proposed no significant hazards consideration
determination: 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:
Criterion 1 - Does not Involve a Significant Increase in the
probability or Consequences of an Accident Previously Evaluated.
The [Nuclear Regulatory Commission] NRC issued Generic Letter
(GL) 95-10 to allow licensees to relocate certain instrumentation
requirements to licensee controlled documents or programs. The staff
has concluded that the specifications listed in the GL were not
required to be included in the technical specifications as required
by 10 CFR 50.36. The staff concluded that the instrumentation
addressed in these specifications are not related to dominant
contributors to plant risk.
The specifications included in this amendment request are being
relocated to the Technical Requirements Manual (TRM). Once in the
TRM, future changes to these requirements will be controlled under
10 CFR 50.59. By controlling future changes under 10 CFR 50.59, NRC
review and approval will be requested for changes exceeding the
regulatory threshold of an unreviewed safety question.
This amendment request does not remove or modify any of the
instrumentation requirements for either unit. This amendment request
does not affect any of the accident initiators, conditions or
assumptions for any of the accidents previously evaluated.
Therefore, this change does not involve a significant increase in
the probability of any accident previously evaluated.
This amendment request is administrative in nature and does not
affect any system or component functional requirements. This change
does not affect the operation of the plant or affect any component
that is used to mitigate the consequences of any accident.
Therefore, this change does not involve a significant increase in
the consequences of any accident previously evaluated.
Therefore, this change does not involve a significant increase
in the probability or consequences of any accident previously
evaluated.
Criterion 2 - Does Not Create the Possibility of a New or
Different Kind of Accident from any Previously Evaluated.
The relocation of existing requirements from the technical
specifications to other licensee controlled documents is considered
administrative in nature. This change does not modify or remove any
plant instrumentation requirements. This proposed change will not
affect any plant system or structure, nor will it affect any system
functional or operability requirements. Consequently, no new failure
modes are introduced as a result of this change. Therefore, this
change does not create the possibility of a new or different kind of
accident from any previously evaluated.
Criterion 3 - Does Not Involve a Significant Reduction in Margin
of Safety.
The proposed amendment request represents a relocation of a
portion of the information previously located in each unit's
technical specification instrumentation section to other licensee
controlled documents that ate controlled under 10 CFR 50.59. The
proposed change is administrative in nature because the
instrumentation requirements for the facility remain the same.
[[Page 2189]]
The proposed change does not represent a change in the configuration
or operation of the plant. Therefore, this change does not involve a
significant reduction in the margin of safety.
Therefore, based upon the reasoning presented above and the
previous discussion of the amendment request, Entergy Operations has
determined that the requested change does not involve significant
hazards consideration.
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.
Local Public Document Room location: Tomlinson Library, Arkansas
Tech University, Russellville, AR 72801
Attorney for licensee: Nicholas S. Reynolds, Esquire, Winston and
Strawn, 1400 L Street, N.W., Washington, DC 20005-3502
NRC Project Director: William D. Beckner
Entergy Operations Inc., Docket No. 50-382, Waterford Steam
Electric Station, Unit 3, St. Charles Parish, Louisiana
Date of amendment request: December 2, 1996
Description of amendment request: The proposed Technical
Specification (TS) Change Request will permit the use of 10 CFR Part 50
Appendix J, Option B, Performance-Based Containment Leakage Testing for
Type A, B and C leak rate testing. TSs 3/4.6.1.1, 3/4.6.1.2, 3/4.6.1.3,
4.6.1.6 and 4.6.1.7 are revised and Section 6.15 is added establishing
the Containment Leakage Rate Testing Program. The Bases are revised to
reflect this change. Minor editorial changes are included in this
request. Waterford Steam Electric Station is planning to have a
Containment Leakage Rate Testing Program in place prior to the next
scheduled refueling outage. This program will be in accordance with the
guidelines contained in Regulatory Guide 1.163, ``Performance-Based
Containment Leak-Test Program,'' dated September 1995.
Basis for proposed no significant hazards consideration
determination: 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:
The proposed change will not affect the assumptions, design
parameters, or results of any accident previously evaluated. The
proposed change does not add or modify any existing equipment. The
proposed changes will result in increased intervals between
containment leakage tests determined through a performance based
approach. The intervals between such tests are not related to
conditions which cause accidents. The proposed changes do not
involve a change to the plant design or operation. Therefore, this
change does not involve a significant increase in the probability of
any accident previously evaluated.
NUREG-1493, ``Performance-Based Containment Leak-Test Program,''
contributed to the technical bases for Option B of 10 CFR 50
Appendix J. NUREG-1493 contains a detailed evaluation of the
expected leakage from containment and the associated consequences.
The increased risk due to lengthening of the intervals between
containment leakage tests was also evaluated and found acceptable.
Using a statistical approach, NUREG-1493 determined the increase in
the expected dose to the public from extending the testing frequency
is extremely small. It also concluded that a small increase is
justifiable due to the benefits which accrue from the interval
extension. The primary benefit is in the reduction in occupational
exposure. The reduction in the occupational exposure is a real
reduction, while the small increase to the public is statistically
derived using conservative assumptions. Therefore, this change does
not involve a significant increase in the consequences of any
accident previously evaluated.
The proposed change does not involve modifications to any
existing equipment. The proposed change will not affect the
operation of the plant or the manner in which the plant is operated.
The reduced testing frequency will not affect the testing
methodology. Therefore, the proposed change will not create the
possibility of a new or different kind of accident from any accident
previously evaluated.
The proposed change does not change the performance methodology
of the containment leakage rate testing program. However, the
proposed change does affect the frequency of containment leakage
rate testing. With an increased frequency between tests, the
proposed change does increase the probability that a increase in
leakage could go undetected for a longer period of time. Operational
experience has demonstrated the leak tightness of the containment
buildings has been significantly below the allowable leakage limit.
The margin of safety that has the potential of being impacted by
the proposed change involves the offsite dose consequences of
postulated accidents which are directly related to containment
leakage rates. The limitation on containment leakage rate is
designed to ensure the total leakage volume will not exceed the
value assumed in our accident analysis. The margin of safety for the
offsite dose consequences of postulated accidents directly related
to containment leakage is maintained by meeting the 1.0 La
acceptance criteria. The proposed change maintains the 1.0 La
acceptance criteria. Therefore, the proposed change will not involve
a significant reduction in a 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.
Local Public Document Room location: University of New Orleans
Library, Louisiana Collection, Lakefront, New Orleans, LA 70122
Attorney for licensee: N.S. Reynolds, Esq., Winston & Strawn 1400 L
Street N.W., Washington, D.C. 20005-3502
NRC Project Director: William D. Beckner
Florida Power and Light Company, Docket No. 50-335, St. Lucie Plant
Unit 1, St. Lucie County, Florida
Dates of amendment request: December 9, 1996
Description of amendment request: The licensee proposed to modify
specifications for selected cycle-specific reactor physics parameters
to refer to the St. Lucie Unit 1 Core Operating Limits Report (COLR)
for limiting values. Minor administrative changes are also included.
The proposed Technical Specification (TS) changes utilized the guidance
provided in Generic Letter 88-16 and are intended to be consistent with
the Standard Technical Specifications for Combustion Engineering Plants
(NUREG-1432, Revision 1).
Basis for proposed no significant hazards consideration
determination: 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) Operation of the facility in accordance with the proposed
amendment would not involve a significant increase in the
probability or consequences of an accident previously evaluated.
The proposed amendment relocates the calculated values of
selected cycle-specific reactor physics parameter limits from the TS
to the COLR, and includes minor editorial changes which do not alter
the intent of stated requirements. The amendment is administrative
in nature and has no impact on any plant configuration or system
performance relied upon to mitigate the
consequences of an accident. Parameter limits specified in the
COLR for this amendment are not changed from the values presently
required by Technical Specifications. Future changes to the
calculated values of such limits may only be made using NRC approved
methodologies, must be consistent with all applicable safety
analysis limits, and are controlled by the 10 CFR 50.59 process.
Assumptions used for accident initiators and/or safety analysis
acceptance criteria are not changed by this amendment. Therefore,
operation of the facility in accordance with the proposed amendment
will not involve a significant increase in the probability or
consequences of an accident previously evaluated.
[[Page 2190]]
(2) Operation of the facility in accordance with the proposed
amendment would not create the possibility of a new or different
kind of accident from any accident previously evaluated.
The proposed amendment relocates the calculated values of cycle
specific reactor physics limiting parameters to the COLR and will
not change the physical plant or the modes of operation defined in
the facility license. The changes do not involve the addition of new
equipment or the modification of existing equipment, nor do they
alter the design configuration of St. Lucie plant systems.
Therefore, operation of the facility in accordance with the proposed
amendment would not create the possibility of a new or different
kind of accident from any accident previously evaluated.
(3) Operation of the facility in accordance with the proposed
amendment would not involve a significant reduction in a margin
of safety.
The cycle specific parameter limits being relocated to the COLR
by this amendment have not been changed from the values presently
required by the TS, and a requirement to operate the plant within
the bounds of the limits specified in the COLR is retained in the
individual specifications. Future changes to the calculated values
of these limits by the licensee may only be developed using NRC-
approved methodologies, must remain consistent with all plant safety
analysis limits addressed in the Final Safety Analysis Report
(FSAR), and are further controlled by the 10 CFR 50.59 process. As
discussed in Generic Letter 88-16, the administrative controls
established for the values of cycle specific parameters using the
guidance of that letter assure conformance with 10 CFR 50.36. Safety
analysis acceptance criteria are not being altered by this
amendment. Therefore, operation of the facility in accordance with
the proposed amendment would not involve a significant reduction in
a margin of safety.
The NRC staff has reviewed the licensee's analysis and, based on
thisreview, it appears that the three standards of 50.92(c) are
satisfied.Therefore, the NRC staff proposes to determine that the
amendment request involves no significant hazards consideration.
Local Public Document Room location: Indian River Junior College
Library, 3209 Virginia Avenue, Fort Pierce, Florida 34954-9003
Attorney for licensee: M. S. Ross, Attorney, Florida Power & Light,
11770 US Highway 1, North Palm Beach, Florida 33408
NRC Project Director: Frederick J. Hebdon
Florida Power and Light Company, Docket No. 50-335 St. Lucie Plant
Unit 1, St Lucie County, Florida
Date of amendment request: December 20, 1996
Description of amendment request: The licensee proposed to delete a
footnote associated with TS 2.1.1, ``Reactor Core Safety Limits,''
which requires reactor thermal power to be limited to 90% of 2700
Megawatts thermal for Cycle 14 operation beyond 7000 Effective Full
Power Hours [EFPH]. The thermal power limit was required pending
completion of a Small Break Loss of Coolant Accident (SBLOCA)
reanalysis that demonstrated acceptable results using input assumptions
corresponding to an increased number of steam generator tubes being
plugged. The SBLOCA reanalysis was completed and included with the
submittal.
Basis for proposed no significant hazards consideration
determination: 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) Operation of the facility in accordance with the proposed
amendment would not involve a significant increase in the
probability or consequences of an accident previously evaluated.
The proposed change will allow full Cycle 14 operation at 100%
of rated power (2700 MWth), by deleting the requirement to
derate to 90% of rated power prior to exceeding 7000 EFPH. This
restriction was imposed in the NRC transmittal letter for License
Amendment 145 for SBLOCA considerations when considering the
increased SGTP [steam generator tube plugging]
level of 30% plus or minus 7%. All Final Safety Analysis Report
(FSAR) events, other than SBLOCA were evaluated at 100% of rated
thermal power and showed no significant increases in the probability
or consequences of accidents previously evaluated.
The SBLOCA was reanalyzed to demonstrate continued compliance
with 10 CFR 50.46 criteria. There is no impact of the proposed
change on any FSAR accident initiator. The plant configuration and
systems remain unchanged.
Therefore, operation of the facility in accordance with the
proposed amendment would not involve a significant increase in the
probability or consequences of an accident previously evaluated.
(2) Operation of the facility in accordance with the proposed
amendment would not create the possibility of a new or different
kind of accident from any accident previously evaluated.
This proposed amendment removes the requirement in the Technical
Specifications to derate to 90% of 2700 MWth for Cycle 14 operation
beyond 7000 EFPH. There will be no change to the modes of operation
of the plant. The plant configuration and the design functions of
all the safety systems remain unchanged.
The proposed amendment will not change the physical plant or the
modes of operation defined in the facility license. The changes do
not involve the addition of new equipment or the modification of
existing equipment, nor do they alter the design of St. Lucie plant
systems. Therefore, operation of the facility in accordance with the
proposed amendment would not create the possibility of a new or
different kind of accident from any accident previously evaluated.
(3) Operation of the facility in accordance with the proposed
amendment would not involve a significant reduction in a margin of
safety.
The impact of the proposed change on available margin to the
acceptance criteria for Specified Acceptable Fuel Design Limits
(SAFDL), primary and secondary over-pressurization, peak containment
pressure, potential radioactive releases, 10 CFR 50.46 requirements
for the large break LOCA, and existing limiting conditions for
operation has been evaluated and addressed in the reduced RCS
[reactor coolant system] flow operating license Amendment No. 145. A
requirement to derate to 90% of 2700 MWth was imposed based on the
SBLOCA analysis. The small break LOCA analysis with 30% plus or
minus 7% SGTP
supported operation up to 7000 EFPH at 100% of rated thermal
power. A reanalysis of SBLOCA with the limiting end-of-cycle
conditions at 100% of rated power, demonstrates continued compliance
with 10 CFR 50.46 criteria.
Therefore, operation of the facility in accordance with the
proposed amendment would not involve a significant reduction in a
margin of safety.The NRC staff has reviewed the licensee's analysis
and, based on thisreview, it appears that the three standards of
50.92(c) are satisfied. Therefore, the NRC staff proposes to
determine that the amendment request involves no significant hazards
consideration.
Local Public Document Room location: Indian River Junior College
Library, 3209 Virginia Avenue, Fort Pierce, Florida 34954-9003
Attorney for licensee: M. S. Ross, Attorney, Florida Power & Light,
11770 US Highway 1, North Palm Beach, Florida 33408
NRC Project Director: Frederick J. Hebdon
GPU Nuclear Corporation, Docket No. 50-289, Three Mile Island, Unit
1, Dauphine County, Pennsylvania
Date of amendment request: December 3, 1996
Description of amendment request: This amendment will incorporate
certain improvements from the Standard Technical Specifications for B&W
Plants (NUREG-1430).
Basis for proposed no significant hazards consideration
determination: 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:
GPU Nuclear has determined that this Technical Specification
Change Request involves no significant hazards consideration as
defined in 10 CFR 50.92 because:
1. Operation of the facility in accordance with the proposed
amendment would not
[[Page 2191]]
involve a significant increase in the probability of occurrence or
the consequences of an accident previously evaluated. The proposed
amendment deletes limiting condition for operation (LCOs) from the
TMI-1 Technical Specifications that are no longer required to be
addressed in Technical Specifications per 10 CFR 50.36(c)(2)(ii).
The proposed amendment also deletes a Surveillance requirement from
the TMI-1 Technical Specifications. This surveillance requirement
has no corresponding LCO and is formatted in the typical LCO format.
These items are addressed in licensee controlled documents. This
proposed amendment incorporates relaxation of selected timeclocks
and surveillances frequencies consistent with NUREG 1430 and adds a
timeclock to a unique LCO. The proposed changes do not modify the
operation, limits or controls of systems, structures or components
relied upon to prevent or mitigate the consequences [of] accidents
previously evaluated. Also, the reliability of systems and
components relied upon to prevent or mitigate the consequences of
accidents previously evaluated is not degraded by the proposed
changes. Therefore, this change does not involve a significant
increase in the probability of occurrence or the consequences of an
accident previously evaluated.
2. Operation of the facility in accordance with the proposed
amendment would not create the possibility of a new or different
kind of accident from any accident previously evaluated because no
new failure modes are created by the proposed changes.
3. Operation of the facility in accordance with the proposed
amendment would not involve a significant reduction in a margin of
safety. The proposed amendment does not change any operating limits
for reactor operation.
The NRC staff has reviewed the licensee's analysis and, based on
this review, it appears that the three standards of 50.92(c) are
satisfied. Therefore the staff proposes to determine that the amendment
request involves no significant hazards consideration.
Local Public Document Room location: Law/Government Publications
Section, State Library of Pennsylvania, (REGIONAL DEPOSITORY) Walnut
Street and Commonwealth Avenue, Box 1601, Harrisburg, PA 17105.
Attorney for licensee: Ernest L. Blake, Jr., Esquire, Shaw,
Pittman, Potts and Trowbridge, 2300 N Street, NW., Washington, DC 20037
NRC Project Director: John F. Stolz
Northern States Power Company, Docket Nos. 50-282 and 50-306,
Prairie Island Nuclear Generating Plant, Unit Nos. 1 and 2, Goodhue
County, Minnesota
Date of amendment requests: October 25, 1996
Description of amendment requests: The proposed amendments would
incorporate the requirements of 10 CFR Part 50, Appendix J, Option B
for containment leakage tests. In addition, the amendments would add a
new section to Technical Specifications, which establishes the
requirements of the containment leakage rate testing program,
consistent with the Improved Standard Technical Specifications.
Basis for proposed no significant hazards consideration
determination: 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. The proposed amendment will not involve a significant
increase in the probability or consequences of an accident
previously evaluated.
The proposed changes provide a mechanism within the TS for
implementing a performance-based leakage rate test program which was
promulgated by the revision to 10 CFR Part 50 to incorporate Option
B to Appendix J. The proposed changes do not involve any physical or
operational changes to structures, systems or components. The
current safety analyses and safety design basis for the accident
mitigation functions of the containment, the airlocks, and the
containment isolation valves are maintained. Since the allowable
containment leakage is still maintained within the analyzed limit
assumed in the accident analysis, there is no adverse effect on
either onsite or offsite dose consequences. Therefore, these changes
will not increase the probability or consequences of an accident
previously evaluated.
2. The proposed amendment will not create the possibility of a
new or different kind of accident from any accident previously
analyzed.
The proposed changes do not involve any physical or operational
changes to structures, systems or components. No new failure
mechanisms beyond those already considered in the current plant
safety analyses are introduced. Therefore, the proposed changes do
not create the possibility of a new or different kind of accident
from any accident previously analyzed.
3. The proposed amendment will not involve a significant
reduction in the margin of safety.
Extending containment leakage rate test intervals from those
currently provided in the Technical Specifications to those provided
for in 10 CFR (Part) 50 Appendix J, Option B may slightly increase
the risk due to an increased likelihood of containment leakage
corresponding to the increased testing intervals. However, this is
somewhat compensated by the corresponding risk reduction benefits
received from the reduction in component cycling, stress, and wear
associated with the increased intervals. When considering the total
integrated risk, which includes all analyzed accident sequences, the
possible additional risk associated with increasing test intervals
is negligible.
The NRC letter to NEI (Nuclear Energy Institute) dated November
2, 1995, recognizes that changes similar to the proposed changes at
PINGP (Prairie Island Nuclear Generating Plant) are required to
implement Option B of 10 CFR (Part) 50, Appendix J. In NUREG-1493,
``Performance-Based Containment Leak-Test Program'', dated September
1995, which forms the basis for the Appendix J revision, the NRC
concludes that adoption of performance-based testing will not
significantly reduce the margin of safety. The containment leak rate
data and component performance history at PINGP are consistent with
the conclusions reached in NUREG-1493 and NEI 94-01. Thus, the
proposed license amendments do not involve a significant reduction
in a margin of safety and will continue to support the regulatory
goal of ensuring an essentially leak-tight containment boundary.
Based on the above, it is concluded that the proposed change
does not result in a significant reduction in margin with respect to
plant safety as defined in the USAR or the Technical Specification
Bases.
Based on the evaluation described above, and pursuant to 10 CFR
Part 50, Section 50.91, Northern States Power Company has determined
that operation of the Prairie Island Nuclear Generating Plant in
accordance with the proposed license amendment request does not
involve any significant hazards considerations as defined by NRC
regulations in 10 CFR Part 50, Section 50.92.
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 requests involve no significant hazards consideration.
Local Public Document Room location: Minneapolis Public Library,
Technology and Science Department, 300 Nicollet Mall, Minneapolis,
Minnesota 55401
Attorney for licensee: Jay Silberg, Esq., Shaw, Pittman, Potts, and
Trowbridge, 2300 N Street, NW, Washington, DC 20037
NRC Project Director: John N. Hannon
Pennsylvania Power and Light Company, Docket Nos. 50-387 and 50-388
Susquehanna Steam Electric Station, Units 1 and 2, Luzerne County,
Pennsylvania
Date of amendment request: November 18, 1996
Description of amendment request: The amendments would amend the
Technical Specifications for Susquehanna Steam Electric Station (SSES),
Units 1 and 2 by increasing the maximum isolation times for the reactor
core isolation cooling inboard warm-up line isolation valves (HV129F088
and HV249F088) from 3 seconds to 12 seconds, the high pressure core
[[Page 2192]]
injection inboard warm-up line isolation valves (HV-155F100 and HV-
255F100) from 3 seconds to 6 seconds and the reactor recirculation
process sample line (RRPSL) isolation valves (HV143F019 and HV243F019)
from 2 seconds to 9 seconds.
Basis for proposed no significant hazards consideration
determination: 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. The proposed change does not involve a significant increase
in the probability or consequences of an accident previously
evaluated.
Chapters 6,9, and 15 of the FSAR [final safety analysis report],
current operating cycles Reload Summary Reports for Units 1 and 2,
Design Basis Document DBD046 (Seismic and Hydrodynamic Loads), and
NUREG-0776 (Safety Evaluation Report for SSES), were reviewed to
determine if the proposed action has an effect on the spectrum of
analyzed anticipated operational transients or postulated design
basis accidents.
The proposed modifications involve replacing the pilot solenoid
valves on the Reactor Recirculation Loop ``B'' Process Sample Line
Isolation Valve (HV1/243F019) and the inboard RCIC [reactor core
isolation cooling] and HPCI [high pressure core injection] Steam
Warm-Up Line Isolation Valves (HV-1/249F088 and HV-1/255F100). They
do not alter any system operation or control logic other than to
increase the time it takes for the associated containment isolation
valve to close. As discussed above, the effects of the increased
isolation times for RCIC and HPCI impacted lines are bounded by the
larger parallel lines with isolation times much greater than the new
isolation times for the smaller lines. In the case of the Reactor
Recirculation Loop ``B'' Process Sample Line, the worst case
scenario for a line of that size is addressed in FSAR Section 15.6.2
and the results have been found acceptable. In fact, the line
breakage event analyzed in the FSAR section postulates a break
outside containment that is not isolable and that does not require
operator action for up to 10 minutes.
The modifications enhance isolation valve performance by
ensuring proper operation in the event of a degraded air system.
Failures within the Process Sampling, RCIC or HPCI systems or
their components are not postulated as causes of accident scenarios
nor is increasing the stroke time of the subject containment
isolation valves [HV-1/243F019]. These systems provide safety
features utilized to mitigate the consequences of the accidents.
However, the failure mode of the replacement solenoid valve is
similar in each case to that of the solenoid valve being replaced in
that it closes upon loss of power or loss of air supply. The current
ability of the plant design to meet the single failure criterion is
unchanged by this modification.
Based on the above discussion, the proposed action does not
involve a significant increase in the probability or consequences of
an accident as previously evaluated.
2. The proposed change does not create the possibility of a new
or different kind of accident from any accident previously
evaluated.
Chapters 6, 9, and 15 of the FSAR were reviewed to determine if
the proposed action [valve replacement with increased isolation
times for associated HPCI, RCIC, RRPSL valves] has the potential of
creating a postulated initiating event which is different than the
analyzed anticipated operational transients or postulated design
basis accident addressed. The review did not identify a postulated
initiating event which would create the possibility for an accident
of a different type due to replacing the pilot solenoid valves of
the affected Reactor Recirculation LOOP ``B'' Process Sample Line or
RCIC or HPCI Steam Warm-Up Line isolation valves.
Also, the Reactor Recirculation Process Sample Line, as part of
the Process Sampling System described in FSAR section 9.3.2.3, does
not perform any safety functions. It is simply an alternate means
for in line reactor water chemistry monitoring upon the loss of the
RWCU system, and its loss does not create any possibility for
unevaluated accidents or malfunctions.
Thus, replacing the pilot solenoid valves on the affected
Reactor Recirculation Process Sample Line, RCIC Steam Warm-Up Line,
and HPCI Steam Warm-Up Line isolation valves as well as relocating
the Process Sample Line solenoid valve for EQ [equipment
qualification] purposes does not create the possibility of a new or
different kind of accident from any accident previously evaluated.
3. The proposed change does not involve a significant reduction
in a margin of safety.
The proposed action involves replacing existing pilot solenoid
valves on containment isolation valves for the Process Sampling,
RCIC, and HPCI Systems, as listed above, with direct acting solenoid
valves to ensure proper valve operation in the event of a degraded
air or gas system as well as relocating the Process Sampling pilot
solenoid valve for EQ purposes.
a. Reactor Recirculation Loop ``B'' Process Sample Line
The limiting condition for the operation of the Reactor
Recirculation Loop ``B'' Process Sample Line Inboard Isolation Valve
(HV-1/243F019) is governed by Technical Specification Section 3/
4.6.3 and its Bases which presently requires this valve to close
within 2 seconds as defined in Technical Specification Table 3.6.3-
1. The proposed modifications involve replacing the pilot solenoid
valve of the normally open isolation valve (HV-1/243F019) with a
direct acting pilot solenoid valve as well as relocating the pilot
solenoid valve to assure an EQ life which supports a 24 month
operating cycle. The combined effects of a lower flow coefficient
and relocating the solenoid valve will require an increase in the
Technical Specification Table 3.6.3-1 isolation time from 2 seconds
to 9 seconds.
This increase in isolation time does not reduce the margin of
safety as defined in the Technical Specification Section Basis,
because breakage of lines of this size is addressed in the
Susquehanna SES [steam electric station] FSAR Section 15.6.2 and the
results found acceptable. In fact, the line breakage event analyzed
postulates a break outside containment that is not isolable and that
does not require operator action for up to 10 minutes. Also, it is
noted that the outboard isolation valve, HV-1/243F020, also closes
on the same containment isolation signal, and its Technical
Specification isolation time limit remains 2 seconds.
The failure mode of the affected Reactor Recirculation Loop
``B'' Process Sample Line Inboard isolation valve is to close on
loss of power or air supply, therefore, the proposed modifications
do not affect the operability of the isolation valve or reduce the
margin of safety.
b. RCIC
The limiting condition for operation of the RCIC system is
governed by Technical Specification Section 3/4.7.3 and its Bases
which requires RCIC to be operable as the primary non-ECCS source of
emergency core cooling. The proposed modifications involve replacing
the pilot solenoid valve of the normally closed Steam Warm-Up Line
Isolation Valve (HV-1/249F088). This valve can be manually opened in
the absence of an isolation signal to permit steam from the reactor
to pressurize and warm the steam supply line downstream of the HV-1/
249F007 valve.
Installation of the direct acting solenoid valve will require an
increase in the Technical Specification Section 3/4.6.3 isolation
time for the RCIC Steam Warm-Up Line Isolation Valve (HV-1/249F088)
from 3 seconds to 12 seconds but does not reduce the margin of
safety as defined in the Technical Specification Section Basis. The
increase in closure time for the HV-1/249F088 isolation valve does
not compromise the overall line isolation due to the fact that the
impact of these 1'' warm up line valves is enveloped by the impact
of the much larger 4'' RCIC inboard and outboard isolation valves
(HV-1/249F007 and HV-1/249F008), which remain open an additional 8
seconds before isolating. The 4'' valves are the limiting components
for providing containment isolation for this line.
The failure mode of the affected RCIC Steam Warm-Up Line
Isolation Valve is to close, if open, on loss of power or air
supply, therefore, the proposed modifications do not affect the
operability of the isolation valve or reduce the margin of safety.
c. HPCI
The limiting condition for operation of the HPCI system is
governed by Technical Specification Section 3/4.5.1 and its Bases
which requires HPCI to be operable for proper Emergency Core Cooling
System operation. Operability includes the HPCI pump and a flow path
capable of taking suction from the suppression pool and delivering
the water to the reactor vessel. The proposed modifications involve
replacing the pilot solenoid valve of the normally closed Steam
Warm-Up Line Isolation Valve (HV-1/255F100). This valve can be
manually opened in the absence of an isolation signal, to permit
steam from the reactor to pressurize
[[Page 2193]]
and warm the steam supply line downstream of the HV-1/255F002 valve.
Installation of the direct acting solenoid valve will require an
increase in the Technical Specification Section 3/4.6.3 isolation
time for the HPCI Steam Warm-Up Line Isolation Valve (HV-1/255F100)
from 3 seconds to 6 seconds but does not reduce the margin of safety
as defined in the Technical Specification Section Basis. The
increase in closure time for the HV-1/255F100 isolation valve does
not compromise the overall line isolation due to the fact that the
impact of these 1'' warm up line valves is enveloped by the impact
of the much larger 10'' HPCI inboard and outboard isolation valves
(HV-1/255F002 and HV-1/255F003) which remain open an additional 44
seconds before isolating. The 10'' valves are the limiting
components for providing containment isolation for this line.
The failure mode of the affected HPCI Steam Warm-Up Line
Isolation Valve is to close, if open, on loss of power or air
supply, therefore, the proposed modifications do not affect the
operability of the isolation valve or reduce the margin of safety.
Thus, based on a review of the Technical Specification, their
Bases, the FSAR and NUREG 0776 (Safety Evaluation Report for SSES),
the replacement of the pilot solenoid valves does not involve a
significant reduction in a 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.
Local Public Document Room location: Osterhout Free Library,
Reference Department, 71 South Franklin Street, Wilkes-Barre, PA 18701
Attorney for licensee: Jay Silberg, Esquire, Shaw, Pittman, Potts
and Trowbridge, 2300 N Street NW., Washington, DC 20037
NRC Project Director: John F. Stolz
Pennsylvania Power and Light Company, Docket No. 50-388,
Susquehanna Steam Electric Station, Unit 2, Luzerne County,
Pennsylvania
Date of amendment request: December 18, 1996
Description of amendment request: The amendment would change the
Susquehanna Steam Electric Station Unit 2 Technical Specifications to
reflect the use of a 24-month operating cycle and the use of the
ATRIUM-10 fuel design. The amendment includes changes to two
definitions in Section 1, inclusion of new minimum critical power ratio
safety limits in Sections 2.1.2 and 3.4.1.1.2, changes in Section 5.3.1
to reflect the new fuel design, and the listing of Siemens Power
Corporation topical reports in Section 6.9.3.2.
Basis for proposed no significant hazards consideration
determination: 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. The proposed change does not involve a significant increase
in the probability or consequences of an accident previously
evaluated.
The applicable sections of the FSAR [Final Safety Analysis
Report] are Chapters 5,6.3,9, and 15 of the FSAR. Chapter 5
discusses the results of the ASME overpressure analyses for the
reactor pressure boundary. Chapter 6.3 discusses the LOCA [loss-of-
coolant accident]. Chapter 9 discusses fuel storage and handling.
Chapter 15 describes the transient and accident analyses, a majority
of which have been generically dispositioned to be non-limiting. A
discussion of the impact of the Technical Specification changes is
provided below.
The change to Definitions 1.2 and 1.3 makes the definitions
applicable to ATRIUM-10. There are no effects on safety functions
from this change.
A cycle specific MCPR [minimum critical power ratio] Safety
Limit analysis was performed for PP&L [Pennsylvania Power & Light
Company] by SPC [Siemens Power Corporation]. This analysis used NRC
approved methods described in Technical Specification Reference 13
(ANF-524(P)(A), Revision 2 and Supplement 1 Revision 2.). The SAFETY
LIMIT MCPR calculation statistically combines uncertainties on
feedwater flow, feedwater temperature, core flow, core pressure,
core power distribution, and the uncertainty in the Critical Power
Correlation. The SPC analysis used cycle specific power
distributions and calculated MCPR values such that at least 99.9% of
the fuel rods are expected to avoid boiling transition during normal
operation or anticipated operational occurrences. The resulting two-
loop and single-loop values (Technical Specification sections 2.1.2
and 3.4.1.1.2) are included in the proposed change. Thus, the
cladding integrity and its ability to contain fission products is
not adversely affected.
The change to the Design Features (Section 5.3) increases the
allowable enrichment. Analyses have demonstrated that the ATRIUM-10
fuel will remain subcritical (k-effectiveavg
greater than or equal to 280 deg.F. Initiating conditions and
assumptions remain as previously analyzed for accidents in the DBNPS
Updated Safety Analysis Report.
These revisions do not involve any physical changes to systems
or components, nor do they alter the typical manner in which the
systems or components are operated.
Review results of historical 18 month surveillance data and
maintenance records support an increase in the surveillance test
intervals from 18 to 24 months (and up to 30 months on a non-routine
basis) because little, if any, potential for an increase in a
failure rate of a system or component was identified during these
reviews.
These proposed revisions are consistent with NRC guidance on
evaluating and proposing such revisions as provided in Generic
Letter 91-04, ``Changes in Technical Specification Surveillance
Intervals to Accommodate a 24-Month Fuel Cycle,'' dated April 2,
1991.
The proposed revision to Technical Specification Table 1.2,
Frequency Notation, and the related proposed revision from an
[[Page 2195]]
``R'' frequency notation to an ``E'' frequency notation for
Technical Specification Surveillance Requirements that are remaining
on an 18 month frequency, are administrative in nature, do not
change current actual Technical Specification requirements, and do
not affect previously evaluated accidents.
1b. Not involve a significant increase in the consequences of an
accident previously evaluated because the source term, containment
isolation or radiological releases are not being changed by these
proposed revisions. Existing system and component redundancy is not
being changed by these proposed changes. Existing system and
component operation is not being changed by these proposed changes.
The assumptions used in evaluating the radiological consequences in
the DBNPS Updated Safety Analysis Report are not invalidated.
The proposed revision to Technical Specification Table 1.2,
Frequency Notation, and the related proposed revision from an ``R''
frequency notation to an ``E'' frequency notation for Technical
Specification Surveillance Requirements that are remaining on an 18
month frequency, are administrative in nature, do not change current
actual Technical Specification requirements, and do not affect
previously evaluated accidents.
2. Not create the possibility of a new or different kind of
accident from any accident previously evaluated because these
revisions do not involve any physical changes to systems or
components, nor do they alter the typical manner in which the
systems or components are operated.
Review results of historical 18 month surveillance data and
maintenance records support an increase in the surveillance test
intervals from 18 to 24 months (and up to 30 months on a non-routine
basis) because little, if any, potential for an increase in a
failure rate of a system or component was identified during these
reviews. No changes are being proposed to the type of testing being
performed, only to the length of the surveillance test interval.
The proposed revision to Technical Specification Table 1.2,
Frequency Notation, and the related proposed revision from an ``R''
frequency notation to an ``E'' frequency notation for Technical
Specification Surveillance Requirements that are remaining on an 18
month frequency, are administrative in nature, do not change current
actual Technical Specification requirements, and do not affect the
manner in which systems and components are being operated or tested.
3. Not involve a significant reduction in a margin of safety
because the review results of the historical 18 month surveillance
data and maintenance records identified little, if any, potential
for an increase in a failure rate of a system or component due to
increasing the surveillance test interval to 24 months. Existing
system and component redundancy is not being changed by these
proposed changes.
The proposed revision to Technical Specification Table 1.2,
Frequency Notation, and the related proposed revision from an ``R''
frequency notation to an ``E'' frequency notation for Technical
Specification Surveillance Requirements that are remaining on an 18
month frequency, are administrative in nature, do not change current
actual Technical Specification requirements, and do not reduce the
margin of safety.
There are no new or significant changes to the initial
conditions contributing to accident severity or consequences,
therefore there are no significant reductions in a 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.
Local Public Document Room location: University of Toledo, William
Carlson Library, Government Documents Collection, 2801 West Bancroft
Avenue, Toledo, Ohio 43606
Attorney for licensee: Jay E. Silberg, Esquire, Shaw, Pittman,
Potts and Trowbridge, 2300 N Street, NW., Washington, DC 20037
NRC Project Director: Gail H. Marcus
Notice of Issuance Of Amendments To Facility Operating Licenses
During the period since publication of the last biweekly notice,
the Commission has issued the following amendments. The Commission has
determined for each of these amendments that the application complies
with the standards and requirements of the Atomic Energy Act of 1954,
as amended (the Act), and the Commission's rules and regulations. The
Commission has made appropriate findings as required by the Act and the
Commission's rules and regulations in 10 CFR Chapter I, which are set
forth in the license amendment.
Notice of Consideration of Issuance of Amendment to Facility
Operating License, Proposed No Significant Hazards Consideration
Determination, and Opportunity for A Hearing in connection with these
actions was published in the Federal Register as indicated.
Unless otherwise indicated, the Commission has determined that
these amendments satisfy the criteria for categorical exclusion in
accordance with 10 CFR 51.22. Therefore, pursuant to 10 CFR 51.22(b),
no environmental impact statement or environmental assessment need be
prepared for these amendments. If the Commission has prepared an
environmental assessment under the special circumstances provision in
10 CFR 51.12(b) and has made a determination based on that assessment,
it is so indicated.
For further details with respect to the action see (1) the
applications for amendment, (2) the amendment, and (3) the Commission's
related letter, Safety Evaluation and/or Environmental Assessment as
indicated. All of these items are available for public inspection at
the Commission's Public Document Room, the Gelman Building, 2120 L
Street, NW., Washington, DC, and at the local public document rooms for
the particular facilities involved.
Boston Edison Company, Docket No. 50-293, Pilgrim Nuclear Power
Station, Plymouth County, Massachusetts
Date of application for amendment: May 1, 1996, as
supplementedNovember 26, 1996.
Brief description of amendment: The proposed amendment will modify
Table 3.1.1, ``Reactor Protection System (SCRAM) Instrumentation
Requirement,'' Table 3.2.C.1, ``Instrumentation That Initiates Rod
Blacks,'' and Technical Specification 3/4.4, ``Standby Liquid
Control.''
Date of issuance: December 27, 1996
Effective date: December 27, 1996
Amendment No.: 169
Facility Operating License No. DPR-35: Amendment revised the
Technical Specifications.
Date of initial notice in Federal Register: June 6, 1995 (61 FR
28606) The November 26, 1996, letter provided clarifying information
that did not change the initial proposed no significant hazards
consideration.The Commission's related evaluation of the amendment is
contained in a Safety Evaluation dated December 27, 1996. No
significant hazards consideration comments received: No
Local Public Document Room location: Plymouth Public Library, 11
North Street, Plymouth, Massachusetts 02360.
Commonwealth Edison Company, Docket Nos. 50-295 and 50-304, Zion
Nuclear Power Station, Units 1 and 2, Lake County, Illinois
Date of application for amendments: July 26, 1996, as supplemented
on September 3, 1996, September 18, 1996, two submittals dated October
14, 1996, October 22, 1996, two submittals dated November 8, 1996, and
December 17, 1996.
Brief description of amendments: The amendments allow Commonwealth
Edison Company to control the reactor coolant system pressure and
temperature limits for heatup, cooldown, low temperature operation and
hydrostatic testing. They also revise the reactor vessel material
surveillance program specimen withdrawal schedule
[[Page 2196]]
such that the Unit 2 removal of capsule X is delayed until 19 Effective
Full Power Years.
Date of issuance: December 20, 1996
Effective date: Immediately, to be implemented within 60 days.
Amendment Nos.: 177 and 164
Facility Operating License Nos. DPR-39 and DPR-48: The amendments
revised the Technical Specifications.
Date of initial notice in Federal Register: September 25, 1996 (61
FR 50341). The September 3, 1996, September 18, 1996, two submittals
dated October 14, 1996, October 22, 1996, two November 8, 1996, and
December 17, 1996, submittals provided additional clarifying
information that did not change the initial proposed no significant
hazards consideration determination. The Commission's related
evaluation of the amendments is contained in a Safety Evaluation dated
December 20, 1996.No significant hazards consideration comments
received: No
Local Public Document Room location: Waukegan Public Library, 128
N. County Street, Waukegan, Illinois 60085.
Detroit Edison Company, Docket No. 50-341, Fermi-2, Monroe
County, Michigan
Date of application for amendment: March 25, 1996 (NRC-96-0003)
Brief description of amendment: The amendment revises the testing
requirements used to determine the operability of the charcoal in the
engineered safety feature systems.
Date of issuance: December 23, 1996
Effective date: December 23, 1996, with full implementation within
45 days
Amendment No.: 110
Facility Operating License No. NPF-43. Amendment revises the
Technical Specifications.
Date of initial notice in Federal Register: July 31, 1996 (61 FR
40014) The Commission's related evaluation of the amendment is
contained in a Safety Evaluation dated December 23, 1996.No significant
hazards consideration comments received: No.
Local Public Document Room location: Monroe County Library System,
3700 South Custer Road, Monroe, Michigan 48161
Duke Power Company, Docket Nos. 50-269, 50-270 and 50-287, Oconee
Nuclear Station, Units 1, 2, and 3, Oconee County, South Carolina
Date of application for amendments: December 11, 1996, as
supplemented December 17, 19, and 26, 1996
Brief description of amendments: The amendments approve changes to
the Updated Final Analysis Report (UFSAR), and require that the changes
be submitted with the next update of the UFSAR pursuant to 10 CFR
50.71(e). The associated Safety Evaluation delineates the staff's
review and findings regarding the one-time emergency power engineered
safeguards functional test.
Date of issuance: January 2, 1997
Effective date: January 2, 1997
Amendment Nos.: 220, 220, 217
Facility Operating License Nos. DPR-38, DPR-47, and DPR-55: The
amendments revised the Updated Final Safety Analysis Report. Public
comments requested as to proposed no significant hazards consideration:
Yes. (61 FR 66699 December 18, 1996) The notice provided an opportunity
to submit comments on the Commission's proposed no significant hazards
consideration determination. No comments have been received. The notice
also provided for an opportunity to request a hearing by January 2,
1997, as corrected to read January 17, 1997, but indicated that if the
Commission makes a final no significant hazards consideration
determination, any such hearing would take place after issuance of the
amendments.
The December 17, 19, and 26, 1996, letters provided additional
information that did not change the scope of the December 11, 1996,
application and initial proposed no significant hazards consideration
determination.
The Commission's related evaluation of the amendments, finding of
exigent circumstances, and a final no significant hazards consideration
determination are contained in a Safety Evaluation dated January 2,
1997.
Local Public Document Room location: Oconee County Library, 501
West South Broad Street, Walhalla, South Carolina 29691
Omaha Public Power District, Docket No. 50-285, Fort Calhoun
Station, Unit No. 1, Washington County, Nebraska
Date of amendment request: May 31, 1996
Brief description of amendment: The amendment revises the technical
specifications to increase the amount of trisodium phosphate (TSP)
dodecahydrate located in the containment sump storage baskets.
Date of issuance: December 30, 1996
Effective date: December 30, 1996
Amendment No.: 179
Facility Operating License No. DPR-40. Amendment revised the
Technical Specifications.
Date of initial notice in Federal Register: July 31, 1996 (61 FR
40025) The Commission's related evaluation of the amendment is
contained in a Safety Evaluation dated December 30, 1996.No significant
hazards consideration comments received: No.
Local Public Document Room location: W. Dale Clark Library, 215
South 15th Street, Omaha, Nebraska 68102
Philadelphia Electric Company, Docket No. 50-353, Limerick
Generating Station, Unit 2, Montgomery County, Pennsylvania
Date of application for amendment: August 1, 1996
Brief description of amendment: This amendment revised the
Technical Specifications Section 3/4.4.6 (i.e., Figure 3.4.6.1-1) to
reflect the addition of two hydrotest curves, effective for 6.5 and 8.5
Effective Full Power Years (EFPY), to the existing Pressure-Temperature
Operating Limit (PTOL) curves for LGS Unit 2.
Date of issuance: December 30, 1996
Effective date: As of date of issuance, to be implemented within 30
days.
Amendment No.: 80
Facility Operating License No. NPF-85. This amendment revised the
Technical Specifications.
Date of initial notice in Federal Register: November 6, 1996 (61 FR
57490) The Commission's related evaluation of the amendment is
contained in a Safety Evaluation dated December 30, 1996.No significant
hazards consideration comments received: No
Local Public Document Room location: Pottstown Public Library, 500
High Street, Pottstown, PA 19464
Notice Of Issuance Of Amendment To Facility Operating License And
FinalNo Significant Hazards Consideration Determination
During the period since publication of the last biweekly notice,
individual notices of issuance of amendments have been issued for the
facilities as listed below. These notices were previously published as
separate individual notices. They are repeated here because this
biweekly notice lists all amendments that have been issued for which
the Commission has made a final determination that an amendment
involves no significant hazards consideration.
In this case, a prior Notice of Consideration of Issuance of
Amendment, Proposed No Significant Hazards Consideration Determination,
and Opportunity for a Hearing was issued, a hearing was requested, and
the amendment was issued before any hearing because the Commission made
a final determination that the
[[Page 2197]]
amendment involves no significant hazards consideration.
Details are contained in the individual notice as cited.
Philadelphia Electric Company, Docket Nos. 50-352 and 50-353,
Limerick Generating Station, Unit 2, Montgomery County,
Pennsylvania
Date of amendment request: December 6, 1996
Brief description of amendment request: The amendment would revise
Technical Specification (TS) Section 2.1 and its associated TS Basis to
reflect the change in the Minimum Critical Power Ratio Safety Limit due
to the use of GE13 fuel product line and the cycle-specific analysis
performed by General Electric Company (GE), for Limerick Generating
Station, Unit 2, Cycle 5.
Date of publication of individual notice in Federal Register:
December 23, 1996 (61 FR 67582)
Expiration date of individual notice: January 22, 1997
Local Public Document Room location: Pottstown Public Library, 500
High Street, Pottstown, PA 19464
Dated at Rockville, Maryland, this 8th day of January 1997.
For the Nuclear Regulatory Commission
Jack W. Roe,
Director, Division of Reactor Projects - III/IV, Office of Nuclear
Reactor Regulation
[Doc. 97-848 Filed 1-14-97; 8:45 am]
BILLING CODE 7590-01-F
This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.