[Federal Register Volume 63, Number 44 (Friday, March 6, 1998)]
[Notices]
[Pages 11312-11317]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-5809]
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NUCLEAR REGULATORY COMMISSION
[Docket Nos. 50-317 and 50-318]
Baltimore Gas and Electric Company; Notice of Consideration of
Issuance of Amendments To Facility Operating Licenses, Proposed No
Significant Hazards Consideration Determination, and Opportunity for a
Hearing
On Friday, January 31, 1997, a Federal Register Notice (62 FR 4816)
[[Page 11313]]
was published stating that the U.S. Nuclear Regulatory Commission (the
Commission) is considering issuance of an amendment to Facility
Operating License Nos. DPR-53 and DPR-69 issued to the Baltimore Gas
and Electric Company (BGE or the licensee) for operation of the Calvert
Cliffs Nuclear Power Plant, Unit Nos. 1 and 2, located in Calvert
County, Maryland.
The proposed amendments requested by the licensee in a letter dated
December 4, 1996, would represent a full conversion from the current
Technical Specifications (TSs) to a set of TS based on NUREG-1432,
Revision 1, ``Standard Technical Specifications, Combustion Engineering
Plants dated April 1995. Since that time, the Commission has received
supplements to the application dated March 27, June 9, June 18, July
21, August 19, September 10, October 6, October 20, October 23,
November 5, 1997, and January 12 and 28, 1998. Therefore, issues not
fully discussed in (62 FR 4816) are presented below.
The proposed amendment includes the following:
1. The licensee is proposing to add a new surveillance requirement
(SR) 3.4.9.2 to the Improved Technical Specifications (ITS) which will
require verification that the capacity of each required bank of
pressurizer heaters is equal to or greater than 150 kW every 24 months.
This is a more restrictive change.
2. The licensee has proposed a change to the current TS
applicability for the pressurizer safety valves which require that both
safety valves be operable in Modes 1, 2, and 3 and that one safety
valve be operable in Modes 4 and 5. The ITS will modify these
applicability requirements for Mode 3 to specify that two safety valves
shall be operable with all reactor coolant system (RCS) cold leg
temperature >365 deg.F for Unit 1 and >301 deg.F for Unit 2. This is
a less restrictive change.
3. The licensee proposes that the power-operated relief valve
(PORVs) be demonstrated operable by performance of a channel test once
per 92 days as part of the conversion to the ITS. The current TS
require that the PORVs be demonstrated operable by performance of a
Channel Function Test once per 31 days. This a less restrictive change.
4. Current TS 3.4.6 2.C specifies that the RCS shall be limited to
``1 gpm total primary--to secondary leakage through all steam
generators and 100 gallon-per-day through any one steam generator.''
The proposed ITS LCO 3.4.1.3 eliminates the limit of 1 gpm total
primary-to-secondary leakage through all steam generators and thus will
only require a limit of 100 gallon per day through any one steam
generator. This is an administrative change.
5. Current TS SR 4.5.2.f.2 requires verifying at least once per
Refueling Interval, during shutdown, that the high-pressure safety
injection pump and low-pressure safety injection pump (LPSI) start
automatically upon receipt of a safety injection actuation test signal.
Proposed ITS SR 3.5.2.6 retains this same requirement with a specified
frequency of 24 months, which is equivalent to the refueling interval.
The proposed ITS will add a new SR 3.5.2.7 which requires verification
that each LPSI pump stops on an actual or simulated actuation signal.
This a more restrictive change.
6. The proposed amendment regarding the control room emergency
ventilation system (CREVS) changes the surveillance from 18 months to
24 months (each refueling cycle) for the following SR. Current TS SR
4.7.6.1.e.2 requires that each train of CREVS is demonstrated operable
at least once every 18 months by verifying that on a control room high
radiation test signal, the system automatically switches into a
recirculation mode of operation with flow through the HEPA filters and
charcoal adsorber banks and that both of the isolation valves in each
duct and common exhaust duct, and isolation valve in the toilet exhaust
area duct, close. The above change is less restrictive.
7. The proposed amendment regarding the control room emergency
temperature system (CRETS) changes the surveillance interval from 62
days on a staggered basis (one train every 31 days) to 24 months (each
refueling interval) for the following SR:
Current TS SR 4.7.6.1.a requires demonstrating that each CRETS
train is operable at least once every 62 days, on a staggered test
basis (one train every 31 days) by: (1) Deenergizing the backup
Control Room air conditioner; and (2) verifying that the emergency
Control Room air conditioners maintain the air temperature [less
than or equal to] 104 deg.F for at least 12 hours when in the
recirculation mode.
SR 4.7.6.1.a changes to ITS SR 3.7.9.1 to require demonstrating
operability of CRETS at least every 24 months by verifying each CRETS
train has the capability to maintain control room temperature within
limits. The above changes are less restrictive.
8. The proposed amendment regarding the spent fuel pool exhaust
ventilation system (SFPEVS) will change the surveillance interval from
18 months to 24 months (each refueling interval) for the following SR.
This is a less restrictive change.
Current TS SR 4.9.12.d requires demonstrating that the SFPEVS is
operable at least once per 18 months by: (1) Verifying that the
pressure drop across the combined HEPA filters and charcoal adsorber
banks are <4 inches="" water="" gauge="" while="" operating="" the="" ventilation="" system="" at="" a="" flow="" rate="" of="" 32,000="" cfm="" plus="" or="" minus="" 10%;="" and="" (2)="" verifying="" that="" each="" exhaust="" fan="" maintains="" the="" spent="" fuel="" storage="" pool="" at="" a="" measurable="" negative="" pressure="" relative="" to="" the="" outside="" atmosphere="" during="" system="" operation.="" sr="" 4.9.12.d="" will="" change="" to="" its="" sr="" 3.7.11.3="" to="" require="" demonstrating="" that="" the="" sfpevs="" is="" operable="" at="" least="" once="" per="" 24="" months="" by="" verifying="" that="" each="" exhaust="" fan="" maintains="" the="" spent="" fuel="" pool="" at="" a="" measurable="" negative="" pressure="" relative="" to="" the="" outside="" atmosphere="" during="" system="" operation.="" 9.="" the="" proposed="" amendment="" regarding="" the="" penetration="" room="" exhaust="" ventilation="" system="" (prevs)="" changes="" the="" surveillance="" interval="" from="" 18="" months="" to="" 24="" months="" (each="" refueling="" interval="" for="" the="" following="" sr:="" current="" ts="" sr="" 4.6.6.1.d.2="" requires="" demonstrating="" that="" each="" prevs="" train="" is="" operable="" at="" least="" once="" per="" 18="" months="" by="" verifying="" that="" the="" filter="" train="" starts="" on="" a="" containment="" isolation="" test="" signal.="" sr="" 4.6.6.1.d.2="" changes="" to="" its="" sr="" 3.7.12.3="" to="" require="" demonstrating="" operability="" of="" the="" prevs="" at="" least="" once="" every="" 24="" months="" by="" verifying="" each="" prevs="" train="" starts="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" the="" above="" change="" is="" less="" restrictive.="" before="" issuance="" of="" the="" proposed="" license="" amendment,="" the="" commission="" will="" have="" made="" findings="" required="" by="" the="" atomic="" energy="" act="" of="" 1954,="" as="" amended="" (the="" act)="" and="" the="" commission's="" regulations.="" the="" commission="" has="" made="" a="" proposed="" determination="" that="" the="" amendment="" request="" involves="" no="" significant="" hazards="" consideration.="" under="" the="" commission's="" regulations="" in="" 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.="" 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.="" basis="" for="" proposed="" no="" significant="" hazards="" determination:="" as="" required="" by="" 10="" cfr="" 50.91(a),="" the="" licensee="" has="" provided="" its="" analysis="" of="" the="" issue="" of="" no="" [[page="" 11314]]="" significant="" hazards="" consideration="" which="" is="" presented="" below="" for="" the="" above="" items.="" item="" 1="" and="" item="" 5--more="" restrictive="" changes="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" changes="" provide="" more="" stringent="" requirements="" than="" previously="" existed="" in="" the="" technical="" specifications.="" each="" change="" was="" evaluated="" and="" it="" was="" determined="" that="" these="" more="" stringent="" requirements="" do="" not="" result="" in="" operation="" that="" will="" increase="" the="" probability="" of="" initiating="" an="" analyzed="" event.="" if="" anything,="" the="" new="" requirements="" may="" decrease="" the="" probability="" or="" consequences="" of="" an="" analyzed="" event="" by="" incorporating="" the="" more="" restrictive="" changes="" discussed="" above.="" the="" proposed="" changes="" do="" not="" alter="" assumptions="" relative="" to="" mitigation="" of="" an="" accident="" or="" transient.="" the="" more="" restrictive="" requirements="" continue="" to="" ensure="" process="" variables,="" structures,="" systems,="" and="" components="" are="" maintained="" consistent="" with="" the="" safety="" analyses="" and="" licensing="" basis.="" the="" proposed="" changes="" do="" not="" significantly="" affect="" initiators="" or="" mitigation="" of="" analyzed="" events,="" and="" therefore="" do="" not="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated?="" the="" proposed="" changes="" provide="" more="" stringent="" requirements="" than="" previously="" existed="" in="" the="" technical="" specifications.="" the="" changes="" will="" not="" involve="" a="" significant="" change="" in="" design="" or="" operation="" of="" the="" plant.="" no="" hardware="" is="" being="" added="" to="" the="" plant="" as="" part="" of="" the="" proposed="" changes.="" the="" proposed="" changes="" will="" not="" introduce="" any="" new="" accident="" initiators.="" the="" changes="" do="" impose="" different="" requirements.="" however,="" these="" changes="" are="" consistent="" with="" the="" assumptions="" in="" the="" safety="" analyses="" and="" licensing="" basis.="" therefore,="" the="" changes="" do="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" this="" change="" involve="" a="" significant="" reduction="" in="" margin="" of="" safety?="" the="" proposed="" changes="" provide="" more="" stringent="" requirements="" than="" previously="" existed="" in="" the="" technical="" specifications.="" an="" evaluation="" of="" these="" changes="" concluded="" that="" adding="" these="" more="" restrictive="" requirements="" either="" increases="" or="" has="" no="" impact="" on="" the="" margin="" of="" safety.="" the="" changes="" provide="" additional="" restrictions="" which="" may="" enhance="" plant="" safety.="" the="" changes="" maintain="" requirements="" within="" the="" safety="" analyses="" and="" licensing="" basis.="" as="" such,="" no="" question="" of="" safety="" is="" involved.="" therefore,="" the="" changes="" do="" not="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety.="" item="" 2--less="" restrictive="" changes="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" change="" deletes="" the="" mode="" 3="" with="" any="" cold="" leg="" temperature="" [less="" than="" or="" equal="" to]="" 365="" deg.f="" ([less="" than="" or="" equal="" to]="" 301="" deg.f="" for="" unit="" 2)="" and="" the="" mode="" 4="" and="" 5="" applicabilities="" from="" the="" modes="" of="" applicability="" for="" the="" pressurizer="" safety="" valves.="" the="" pressurizer="" safety="" valves="" are="" not="" initiators="" of="" any="" analyzed="" event.="" the="" pressurizer="" safety="" valves="" are="" not="" required="" to="" mitigate="" any="" accidents="" in="" mode="" 3="" with="" cold="" leg="" temperature="" [less="" than="" or="" equal="" to]="" 365="" deg.f="" ([less="" than="" or="" equal="" to]="" 301="" deg.f="" for="" unit="" 2),="" or="" in="" modes="" 4="" or="" 5.="" in="" mode="" 3="" with="" any="" cold="" leg="" temperature="" [less="" than="" or="" equal="" to]="" 365="" deg.f="" ([less="" than="" or="" equal="" to]="" 301="" deg.f="" for="" unit="" 2)="" overpressure="" protection="" is="" provided="" by="" the="" low="" temperature="" overpressure="" protection="" (ltop)="" system.="" the="" change="" will="" not="" alter="" assumptions="" relative="" to="" the="" mitigation="" of="" an="" accident="" or="" transient.="" the="" proposed="" changes="" do="" not="" significantly="" affect="" initiators="" or="" mitigation="" of="" analyzed="" events,="" and="" therefore="" do="" not="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" previously="" evaluated?="" the="" proposed="" change="" deletes="" the="" mode="" 3="" with="" any="" cold="" leg="" temperature="" [less="" than="" or="" equal="" to]="" 365="" deg.f="" ([less="" than="" or="" equal="" to]="" 301="" deg.f="" for="" unit="" 2),="" and="" the="" mode="" 4="" and="" 5="" applicabilities="" from="" the="" modes="" of="" applicability="" for="" the="" pressurizer="" safety="" valves.="" the="" change="" will="" not="" involve="" a="" significant="" change="" in="" design="" or="" operation="" of="" the="" plant.="" no="" hardware="" is="" being="" added="" to="" the="" plant="" as="" part="" of="" the="" proposed="" change.="" the="" proposed="" change="" will="" not="" introduce="" any="" new="" accident="" initiators.="" therefore,="" the="" change="" does="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" this="" change="" involve="" a="" significant="" reduction="" in="" margin="" of="" safety?="" the="" proposed="" change="" deletes="" the="" mode="" 3="" with="" any="" cold="" leg="" temperature="" [less="" than="" or="" equal="" to]="" 365="" deg.f="" ([less="" than="" or="" equal="" to]="" 301="" deg.f="" for="" unit="" 2),="" and="" mode="" 4="" and="" 5="" applicabilities="" from="" the="" modes="" of="" applicability="" for="" the="" pressurizer="" safety="" valves.="" the="" pressurizer="" safety="" valves="" are="" not="" required="" for="" overpressure="" protection="" in="" mode="" 3="" with="" any="" cold="" leg="" temperature="" [less="" than="" or="" equal="" to]="" 365="" deg.f="" ([less="" than="" or="" equal="" to]="" 301="" deg.f="" for="" unit="" 2),="" or="" in="" modes="" 4="" or="" 5.="" the="" overpressure="" protection="" in="" these="" modes="" are="" provided="" by="" the="" ltop="" system.="" therefore,="" the="" change="" does="" not="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety.="" item="" 3--less="" restrictive="" change="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" for="" the="" porv="" special="" test="" exception="" from="" 31="" days="" to="" 92="" days.="" decreasing="" the="" porv="" special="" test="" exception="" frequency="" to="" 92="" days="" is="" not="" an="" initiator="" of="" any="" analyzed="" event.="" the="" porv="" shares="" the="" same="" instrumentation="" as="" the="" reactor="" protective="" system="" pressurizer="" high="" function,="" which="" was="" approved="" for="" quarterly="" channel="" functional="" testing="" in="" an="" nrc="" safety="" evaluation="" report,="" dated="" august="" 24,="" 1994.="" a="" plant-specific="" setpoint="" drift="" analysis="" demonstrated="" that="" the="" observed="" changes="" in="" instrument="" uncertainties="" for="" extended="" surveillance="" test="" intervals="" do="" not="" exceed="" the="" current="" 30-day="" setpoint="" assumptions.="" this="" provides="" confidence="" the="" 90-92="" day="" test="" interval="" will="" not="" impact="" the="" ability="" of="" the="" porv="" to="" perform="" its="" safety="" function.="" the="" change="" will="" not="" significantly="" alter="" assumptions="" relative="" to="" the="" mitigation="" of="" an="" accident="" or="" transient.="" the="" proposed="" changes="" do="" not="" significantly="" affect="" initiators="" or="" mitigation="" of="" analyzed="" events,="" and="" therefore="" do="" not="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" for="" the="" porv="" channel="" functional="" test="" from="" 31="" days="" to="" 92="" days.="" the="" change="" will="" not="" involve="" a="" significant="" change="" in="" design="" or="" operation="" of="" the="" plant.="" no="" hardware="" is="" being="" added="" to="" the="" plant="" as="" part="" of="" the="" proposed="" change.="" the="" proposed="" change="" will="" not="" introduce="" any="" new="" accident="" initiators.="" therefore,="" the="" change="" does="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" this="" change="" involve="" a="" significant="" reduction="" in="" margin="" of="" safety?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" for="" the="" porv="" channel="" functional="" test="" from="" 31="" days="" to="" 92="" days.="" the="" porv="" shares="" the="" same="" instrumentation="" as="" the="" reactor="" protective="" system="" pressurizer="" pressure="" high="" function,="" which="" was="" approved="" for="" quarterly="" channel="" functional="" testing="" in="" an="" nrc="" safety="" evaluation="" report,="" dated="" august="" 24,="" 1994.="" this="" change="" makes="" the="" testing="" frequency="" for="" the="" porv="" consistent="" with="" the="" reactor="" protective="" system="" high="" pressurizer="" function,="" which="" shares="" the="" same="" instrumentation.="" the="" core="" melt="" frequency="" remains="" unchanged.="" also,="" the="" instrument="" drift="" resulting="" from="" the="" proposed="" surveillance="" interval="" is="" less="" than="" the="" instrument="" drift="" presently="" assumed="" for="" the="" current="" surveillance="" interval.="" therefore,="" the="" change="" does="" not="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety.="" item="" 4--administrative="" change="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" changes="" involve="" reformatting,="" renumbering,="" and="" rewording="" of="" the="" existing="" technical="" specifications,="" along="" with="" the="" incorporation="" of="" current="" plant="" practices="" and="" other="" changes,="" as="" discussed="" above,="" in="" order="" to="" be="" consistent="" with="" nureg-1432.="" these="" changes="" involve="" no="" technical="" changes="" to="" the="" existing="" technical="" specifications.="" specifically,="" there="" will="" be="" no="" change="" in="" the="" requirements="" imposed="" on="" calvert="" cliffs="" due="" to="" these="" changes.="" thus,="" the="" changes="" are="" administrative="" in="" nature="" and="" do="" not="" impact="" initiators="" of="" analyzed="" events.="" the="" proposed="" changes="" do="" not="" significantly="" affect="" initiators="" or="" mitigation="" of="" analyzed="" events,="" and="" therefore="" do="" not="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated?="" the="" proposed="" changes="" involve="" reformatting,="" renumbering,="" and="" rewording="" of="" the="" existing="" technical="" specifications,="" along="" with="" the="" incorporation="" of="" current="" plant="" [[page="" 11315]]="" practices="" and="" other="" changes,="" as="" discussed="" above,="" in="" order="" to="" be="" consistent="" with="" nureg-1432.="" the="" changes="" will="" not="" involve="" a="" significant="" change="" in="" design="" or="" operation="" of="" the="" plant.="" no="" hardware="" is="" being="" added="" to="" the="" plant="" as="" part="" of="" the="" proposed="" change.="" the="" proposed="" changes="" will="" not="" introduce="" any="" new="" accident="" initiators.="" therefore,="" the="" changes="" do="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" this="" change="" involve="" a="" significant="" reduction="" in="" margin="" of="" safety?="" the="" proposed="" changes="" involve="" reformatting,="" renumbering,="" and="" rewording="" of="" the="" existing="" technical="" specifications,="" along="" with="" the="" incorporation="" of="" current="" plant="" practices="" and="" other="" changes,="" as="" discussed="" above,="" in="" order="" to="" be="" consistent="" with="" nureg-1432.="" the="" changes="" are="" administrative="" in="" nature="" and="" will="" not="" involve="" any="" technical="" changes.="" the="" changes="" will="" not="" reduce="" a="" margin="" of="" safety="" because="" it="" has="" no="" impact="" on="" any="" safety="" analysis="" assumptions.="" therefore,="" the="" changes="" do="" not="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety.="" item="" 6--less="" restrictive="" changes="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" control="" room="" emergency="" ventilation="" system="" (crevs)="" will="" actuate="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" the="" crevs="" is="" not="" an="" initiator="" to="" any="" accident="" previously="" evaluated="" so="" there="" is="" no="" change="" in="" the="" probability="" of="" an="" accident.="" the="" 24-month="" test="" frequency="" is="" sufficient="" to="" verify="" that="" the="" equipment="" will="" actuate="" if="" needed,="" so="" the="" equipment="" will="" continue="" to="" be="" able="" to="" mitigate="" the="" consequences="" of="" accidents="" previously="" evaluated.="" therefore,="" this="" change="" will="" not="" involve="" an="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" crevs="" will="" actuate="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" this="" change="" will="" not="" physically="" alter="" the="" plant="" (no="" new="" or="" different="" types="" of="" equipment="" will="" be="" installed).="" the="" change="" does="" not="" require="" any="" new="" or="" unusual="" operator="" actions.="" therefore,="" the="" change="" does="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" the="" change="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety?="" the="" proposed="" change="" decreased="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" crevs="" will="" actuate="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" a="" review="" of="" previously="" performed="" surveillances="" determined="" that="" no="" failures="" have="" been="" found="" during="" the="" performance="" of="" this="" sr="" once="" per="" 18="" months.="" given="" the="" performance="" history,="" there="" is="" no="" reason="" to="" believe="" that="" a="" frequency="" of="" 24="" months="" would="" result="" in="" reduced="" reliability="" of="" the="" system.="" therefore,="" this="" change="" does="" not="" involve="" a="" significant="" reduction="" in="" the="" margin="" of="" safety.="" item="" 7--less="" restrictive="" change="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" change="" will="" decrease="" the="" frequency="" from="" 62="" days="" on="" a="" staggered="" test="" basis="" (one="" train="" every="" 31="" days)="" to="" 24="" months="" for="" verifying="" that="" the="" crets="" can="" maintain="" temperature="" in="" the="" control="" room="" at="" [less="" than="" or="" equal="" to]="" 104="" deg.f.="" this="" change="" will="" not="" significantly="" increase="" the="" possibility="" of="" an="" accident="" previously="" evaluated.="" the="" crets="" is="" not="" an="" initiator="" of="" any="" analyzed="" event.="" this="" change="" will="" not="" significantly="" increase="" the="" consequences="" of="" an="" accident.="" the="" crets="" will="" still="" be="" tested="" at="" a="" frequency="" that="" will="" show="" it="" can="" maintain="" control="" room="" temperature.="" review="" of="" the="" past="" 10="" years="" of="" data="" has="" shown="" that="" during="" this="" period="" the="" test="" has="" never="" failed.="" this="" change="" will="" not="" significantly="" affect="" the="" assumptions="" relative="" to="" the="" mitigation="" of="" accidents="" or="" transients.="" therefore,="" the="" change="" does="" not="" involve="" a="" significant="" increase="" in="" the="" probability="" of="" consequence="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated?="" the="" proposed="" change="" will="" decrease="" the="" frequency="" from="" 62="" days="" on="" a="" staggered="" test="" basis="" (one="" train="" every="" 31="" days)="" to="" 24="" months="" for="" verifying="" that="" the="" crets="" can="" maintain="" temperature="" in="" the="" control="" room="" at="" [less="" than="" or="" equal="" to]="" 104="" deg.f.="" this="" change="" does="" not="" involve="" a="" significant="" change="" in="" the="" design="" or="" operation="" of="" the="" plant.="" no="" hardware="" is="" being="" added="" to="" the="" plant="" as="" part="" of="" the="" proposed="" change.="" the="" proposed="" change="" will="" not="" introduce="" any="" new="" accident="" initiators.="" therefore,="" the="" change="" does="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" the="" change="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety?="" the="" proposed="" change="" will="" decrease="" the="" frequency="" from="" 62="" days="" on="" a="" staggered="" test="" basis="" (one="" train="" every="" 31="" days)="" to="" 24="" months="" for="" verifying="" that="" the="" crets="" can="" maintain="" temperature="" in="" the="" control="" room="" at="" [less="" than="" or="" equal="" to]="" 104="" deg.f.="" the="" margin="" of="" safety="" is="" not="" significantly="" affected="" by="" this="" change.="" the="" surveillance="" will="" still="" be="" performed="" at="" an="" interval="" which="" will="" prove="" the="" crets="" remains="" operable="" based="" on="" an="" evaluation="" of="" past="" surveillance="" history.="" also,="" increasing="" the="" surveillance="" interval="" will="" prevent="" inadvertent="" wear="" and="" tear="" on="" the="" system="" due="" to="" over="" testing,="" which="" can="" possibly="" lead="" to="" premature="" failures.="" therefore,="" the="" proposed="" change="" does="" not="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety.="" item="" 8--less="" restrictive="" change="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" months="" to="" 24="" months="" for="" verifying="" that="" the="" sfpevs="" can="" maintain="" a="" measurable="" negative="" pressure="" in="" the="" spent="" fuel="" pool="" area="" of="" the="" auxiliary="" building.="" this="" change="" will="" not="" affect="" the="" probability="" of="" an="" accident.="" the="" sfpevs="" is="" not="" an="" initiator="" of="" any="" analyzed="" event.="" the="" change="" will="" not="" affect="" the="" consequences="" of="" an="" accident.="" the="" 24-="" month="" frequency="" is="" sufficient="" to="" ensure="" that="" the="" sfpevs="" can="" maintain="" a="" measurable="" negative="" pressure="" in="" the="" spent="" fuel="" pool="" area.="" the="" change="" will="" not="" alter="" assumptions="" relative="" to="" the="" mitigation="" of="" an="" accident="" or="" transient.="" therefore,="" the="" change="" will="" not="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequence="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" months="" to="" 24="" months="" for="" verifying="" that="" the="" sfpevs="" can="" maintain="" a="" measurable="" negative="" pressure="" in="" the="" spent="" fuel="" pool="" area="" of="" the="" auxiliary="" building.="" this="" change="" will="" not="" physically="" alter="" the="" plant="" (no="" new="" or="" different="" type="" of="" equipment="" will="" be="" installed).="" the="" change="" does="" not="" require="" any="" new="" or="" unusual="" operator="" actions.="" therefore,="" the="" change="" does="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" 3.="" does="" the="" change="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" sfpevs="" can="" maintain="" a="" measurable="" negative="" pressure="" in="" the="" spent="" fuel="" pool="" area="" of="" the="" auxiliary="" building.="" the="" margin="" of="" safety="" is="" not="" significantly="" affected="" by="" this="" change.="" the="" failure="" history="" for="" this="" sr="" has="" shown="" that="" no="" failures="" have="" occurred="" in="" the="" previous="" ten="" years.="" the="" proposed="" frequency="" will="" continue="" to="" prove="" that="" the="" sfpevs="" will="" maintain="" a="" negative="" pressure="" in="" the="" spent="" fuel="" pool="" area.="" therefore,="" the="" change="" does="" not="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety.="" item="" 9--less="" restrictive="" change="" 1.="" does="" the="" change="" involve="" a="" significant="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" penetration="" room="" emergency="" ventilation="" system="" (prevs)="" will="" actuate="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" the="" prevs="" is="" not="" an="" initiator="" to="" any="" accident="" previously="" evaluated="" so="" there="" is="" no="" change="" in="" the="" probability="" of="" an="" accident.="" the="" 24-month="" test="" frequency="" is="" sufficient="" to="" verify="" that="" the="" equipment="" will="" actuate="" if="" needed="" so="" the="" equipment="" will="" continue="" to="" be="" able="" to="" mitigate="" the="" consequences="" of="" accidents="" previously="" evaluated.="" therefore,="" this="" change="" will="" not="" involve="" an="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" 2.="" does="" the="" change="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" prevs="" will="" actuate="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" this="" change="" will="" not="" physically="" alter="" the="" plant="" (no="" new="" or="" different="" types="" of="" equipment="" will="" be="" installed).="" the="" change="" does="" not="" require="" any="" new="" or="" unusual="" operator="" actions.="" therefore,="" this="" change="" does="" not="" create="" the="" possibility="" of="" a="" new="" or="" different="" kind="" of="" accident="" from="" any="" accident="" previously="" evaluated.="" [[page="" 11316]]="" 3.="" does="" the="" change="" involve="" a="" significant="" reduction="" in="" a="" margin="" of="" safety?="" the="" proposed="" change="" decreases="" the="" surveillance="" frequency="" from="" 18="" to="" 24="" months="" for="" verifying="" that="" the="" prevs="" will="" actuate="" on="" an="" actual="" or="" simulated="" actuation="" signal.="" a="" review="" of="" previously="" performed="" surveillances="" determined="" that="" no="" failures="" have="" been="" found="" during="" the="" performance="" of="" this="" sr="" once="" per="" 18="" months.="" given="" the="" performance="" history,="" there="" is="" no="" reason="" to="" believe="" that="" a="" frequency="" of="" 24="" months="" would="" result="" in="" reduced="" reliability="" of="" the="" system.="" therefore,="" this="" change="" will="" not="" involve="" an="" increase="" in="" the="" probability="" or="" consequences="" of="" an="" accident="" previously="" evaluated.="" the="" nrc="" staff="" has="" reviewed="" the="" licensee's="" analyses="" 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,="" regarding="" the="" matters="" discussed="" above.="" 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.="" 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="" and="" directives="" branch,="" division="" of="" administrative="" services,="" office="" of="" administration,="" u.s.="" nuclear="" regulatory="" commission,="" washington,="" dc="" 20555-0001,="" and="" should="" cite="" the="" publication="" date="" and="" page="" number="" of="" this="" federal="" register="" notice.="" written="" comments="" may="" also="" be="" delivered="" to="" room="" 6d59,="" two="" white="" flint="" north,="" 11545="" rockville="" pike,="" rockville,="" maryland,="" from="" 7:30="" a.m.="" to="" 4:15="" p.m.="" federal="" workdays.="" 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="" hearing="" and="" petitions="" for="" leave="" to="" intervene="" is="" discussed="" below.="" by="" april="" 6,="" 1998,="" 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="" located="" at="" the="" calvert="" county="" library,="" prince="" frederick,="" maryland="" 20678.="" if="" a="" request="" for="" a="" hearing="" or="" petition="" for="" leave="" to="" intervene="" is="" filed="" by="" the="" above="" date,="" the="" commission="" or="" an="" atomic="" safety="" and="" licensing="" board,="" designated="" by="" the="" commission="" or="" by="" the="" chairman="" of="" the="" atomic="" safety="" and="" licensing="" board="" panel,="" will="" rule="" on="" the="" request="" and/or="" petition;="" and="" the="" secretary="" or="" the="" designated="" atomic="" safety="" and="" licensing="" board="" will="" issue="" a="" notice="" of="" hearing="" or="" an="" appropriate="" order.="" as="" required="" by="" 10="" cfr="" 2.714,="" a="" petition="" for="" leave="" to="" intervene="" shall="" set="" forth="" with="" particularity="" the="" interest="" of="" the="" petitioner="" in="" the="" proceeding,="" and="" how="" that="" interest="" may="" be="" affected="" by="" the="" results="" of="" the="" proceeding.="" the="" petition="" should="" specifically="" explain="" the="" reasons="" why="" intervention="" should="" be="" permitted="" with="" particular="" reference="" to="" the="" following="" factors:="" (1)="" the="" nature="" of="" the="" petitioner's="" right="" under="" the="" act="" to="" be="" made="" party="" to="" the="" proceeding;="" (2)="" the="" nature="" and="" extent="" of="" the="" petitioner's="" property,="" financial,="" or="" other="" interest="" in="" the="" proceeding;="" and="" (3)="" the="" possible="" effect="" of="" any="" order="" which="" may="" be="" entered="" in="" the="" proceeding="" on="" the="" petitioner's="" interest.="" the="" petition="" should="" also="" identify="" the="" specific="" aspect(s)="" of="" the="" subject="" matter="" of="" the="" proceeding="" 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.="" 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:="" rulemakings="" and="" adjudications="" staff,="" or="" may="" be="" delivered="" to="" the="" commission's="" [[page="" 11317]]="" public="" document="" room,="" the="" gelman="" building,="" 2120="" l="" street,="" nw.,="" washington,="" dc,="" by="" the="" above="" date.="" 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="" jay="" e.="" silberg,="" esquire,="" shaw,="" pittman,="" potts="" and="" trowbridge,="" 2300="" n="" street,="" nw.,="" washington,="" dc="" 20037,="" attorney="" for="" the="" licensee.="" nontimely="" filings="" of="" petitions="" for="" leave="" to="" intervene,="" amended="" petitions,="" supplemental="" petitions="" and/or="" requests="" for="" hearing="" will="" not="" be="" entertained="" absent="" a="" determination="" by="" the="" commission,="" the="" presiding="" officer="" or="" the="" presiding="" atomic="" safety="" and="" licensing="" board="" that="" the="" petition="" and/or="" request="" should="" be="" granted="" based="" upon="" a="" balancing="" of="" the="" factors="" specified="" in="" 10="" cfr="" 2.714(a)(1)(i)-(v)="" and="" 2.714(d).="" for="" further="" details="" with="" respect="" to="" this="" action,="" see="" the="" application="" for="" amendment="" dated="" december="" 4,="" 1996,="" as="" supplemented="" march="" 27,="" june="" 9,="" june="" 18,="" july="" 21,="" august="" 14,="" august="" 19,="" september="" 10,="" october="" 6,="" october="" 20,="" october="" 23,="" november="" 5,="" 1997,="" and="" january="" 12="" and="" january="" 28,="" 1998,="" 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="" located="" at="" the="" calvert="" county="" library,="" prince="" frederick,="" maryland="" 20678.="" dated="" at="" rockville,="" maryland,="" this="" 2nd="" day="" of="" march="" 1998.="" for="" the="" nuclear="" regulatory="" commission.="" alexander="" w.="" dromerick,="" senior="" project="" manager,="" project="" directorate="" i-1,="" division="" of="" reactor="" projects--i/ii,="" office="" of="" nuclear="" reactor="" regulation.="" [fr="" doc.="" 98-5809="" filed="" 3-5-98;="" 8:45="" am]="" billing="" code="" 7590-01-p="">