ML20212M554

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Advises That Review of Tech Specs Re Installed Filter Sys Indicates Need for Addl Limiting Conditions for Operations & Surveillance Requirements.Application for Amend to License DPR-35 Requested within 45 Days of Ltr Date
ML20212M554
Person / Time
Site: Pilgrim
Issue date: 01/07/1975
From: Ziemann D
US ATOMIC ENERGY COMMISSION (AEC)
To: Feldman M
BOSTON EDISON CO.
Shared Package
ML20212M446 List:
References
NUDOCS 8701300160
Download: ML20212M554 (10)
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UsetTED STAT M ATOMIC ENWISY COMMISWON <j O[ ' _ ..

January 7, 1975 y Docket No. 50-293 gL 7 9 (d Boston Edison Company ATTN: ter. Maurice J. Feldesan h Vice President [v Operations and Engineering 800 Boylston Street

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Boston, Massachusetts 02199 Gentlemen:

Our review of your Technical Specifications related to insta11d filter 43 systems indicates a need for additional Limiting These conditione are required for Operation is order to (140) and Surveillance Requirements.

O ensure high confidence that the systems will function reliably, when moeded, at a degree of efficiency equal to or better then that assumed in O the accident smalyses.

O In order to assist you in the preparation of appropriate revisises,as have prepared model Technical Specifications which include IAO's, Serve 111ance Requirements and Bases for the following Pilgria Unit 1 ovetems:

1) Main Control Room Environmental Control Systems N 2) Standby Gas Treatment System You are r e to submit by no later then 45 days from the date of O this 1 lication for amenement to your Ise - tuns would chemSe the Techairal Specifications related to tastalled f11ter eyetens O so as to be in comforenace with the requiremente in the amm1M model Technical Specifications, Sincerely, m .

ww' Deania L. Eiemaan ief Operating Ranctore Breech #2 Directorate of Licensing Enclosera Model Technical Specificatione f ces See mest page h

/o ao 8701300160 870127 PDR ADOCK 05000293 n P ppR

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  • ATTAcHmeMT 2 /, /, ff,2 A UttfTED STATES ATOMIC ENUW3Y COMMISS4CN

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January 7, 1975 h Docket No. 50-293 6% g a 9 (d Boston Edison Company

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ATTN: Mr. Maurice J. Feldmann Vice President [g h

Operations and Engineering T 800 Boylston Street Boston, Massachusetts 02199 /

Centlement Our review of your Technical Specifications related to installed filter e systems indicates a need for additional Limiting These are Conditions required in for Operation order to (LCO) and Surveillance Requirements.

O ensure high confidence that the systems will function reliably, when needed, at a degree of efficiency equal to or better than that assumed in C the accident analyses.

O In order to assist you in the preparation of appropriate revisines, we have prepared modal Technical Specifications which include LCO's, Surveillance Requirements and Basse for the following Pilgria Dait i systems:

1) Main Control Room Ravironmental Control Systems CM 2) Standby Ces Treatment System You are requasted to submit by no later thes 45 days from the dat_a_of this letm == .pplication for -- t to your license tnat would O

change the Technical Specificatione related to installed filtar systeme g so as to b- in conformance with the requirensets in the maniamed model Technical Specifications.

Sincerely,

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wvwas n-f .

Dennis L. Zie= ann, iaf Operating Reactors Branch #2 Directorate of Licensing Encloeures Model Technical Specifications f h

A ect See next page

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Boston Edison Company O cc w/ enclosures:

Mr. Dale G. Stoodley, Counsel Boston Edison Company 800 Boylston Street Boston, Massachusetts 021M Mr. J. Edward Howard, Superintendent Nuclear Engineering Department Boston Edison Company 800 Boylston Street Boston, Massachusetts 02199 Mr. Grant Baston, Pilgrim Division Beed Boston Edison Company EyD #1 Rocky Hill Road Plymouth, Massachusetts 02360 N Mr. Winfield M. Sides, Jr.

Quality Assurance Manager O 800 Boylston Street Boston, Maseachusetts 02199 O

O Anthony Z. Rotsman, Esquire Berlin, Roisaan and Kessler 1712 N Street, N. W.

9 Washington, D. C. 20036 g Plymouth Public Library North Street N Plymouth, Massachusetts 02360 Mr. J. E. Larson Senior Licensing Engineer o and Co-ordinator j Boeton Edison Company o EyD #1 Rocky Hill Road Plymouth, Massachusetts 02360 0

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$ C'A TECHr.!CfL SPECIFICATTCNS

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  • 4.7 SURVEILLANCE REGUIRDE'iTS 3.7 LIMIT!*i CONDITIONS FOR OPERATION
8. Standby Gas T-eatr.ent Systen 8. Stan6y f%s Trectment System l
1. At least once per operating cycle, the
1. Except as specified in Specification following conditions shall be de.,onstrated.

3.7.8.3 below, both circuits of the .

standby gas treate.cnt system and the e diesel ger.crators required for a. Pressure drop across the conbined operation of such circuits shall be HEPA filters and charcoal adsorber k.D ^

banks is less than inches of /

operable at all times hten secondary wateratthesysten@<esignflow containment integrity is required.

rate. *

2. a. The results of the in-place cold DOP d,f, b. fnlet heater input is capable of
p.and halo enated hydrocarben tests at I4f design f ows on HEPA filters and
  • freducingR.H.from100to707.R.H. .

- o wC charcoal adsorber banks shall show c. Air distribution is uniform within M

>99% 00P removal and > 99% l

  • Ealogenated

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hydrocarbon~~removal.

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Iy 20% across HEPA filters and charcoal l aggo7yers, results of laboratory carbon } F -

. . ( b. 2. a. e tests and sample analysis of.

sasple analysis shall show >95% Specification 3.7.8.2,sh,g,1) jy

.l _w amoaccmurethyl iodide rEnoval ,,

I at a velocity within 20 percent of > 8^ performed initially a_nd at least once.per year for standby service .

( actuglsystendesign,0.5to1.5 cr after every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of .3 inlet methyl iodido concentra- '

system operation and following -

t on. >,,70% R.H. and >190*F.

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( significant painting. fire or chemical release in any ventilation

c. Fans shall be shown to operate within / zone coemunicating with the system. .s j J

?,,10% design ficw. ~

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b. Cold DOP testing shall be perfenned

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~f pg wee.1 oNI] Ym g,4 cnooA -flow 7' -

'after each complete or partial replacement of the HEPA filter bank or after any structural <J d

em7 M '.I ' 3 N e n,, g, c p u ,a 2 maintenance on the system housing.

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O OO I24 BWR TECMMICAL 59ECIFICATIO'iS l .,,4

- ]F 4.0 St.'RVEILLA:tCE REQUIRFT.ENTS  ; . _!

3.7 LIMITING CONDITIONS FCR OPERATION  !

c. 911cgenated hydrocarbon testing shall M be perforred after each complete er ~

I-s partial rcplaccecnt of the charcoal adsorber bank or after any structural Cl i ,

gp traintenar.cc on the3systers housing.

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d. Each circuit shall be cperated with
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the heaters ori at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every

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M f Test sealing of gaskets for housing

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f Ll/[k doors tWnstream of the HEPA filters i

" and charcoal adsorbers shall be performed ' ;."

8 at and in confomance with each test 4 ef. h [,.< C - [/

perfonred for compliance with  : 0; Specification 4.7.6.2.a and Specification 3.7.B.2.a.

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System drains e.cre present shall be 1%

3. Frcm and after the date that one qucrterly for adequate water level in Je l circuit of the standby sas treatment loop-seals.

system is made or four.d to be At least once per operating cycle inoperable for any reason, recctor 4. 4.

operation and fuel handling is automatic initiation of each branch of the standby gas treatment system permissible only during the succeeding a seven days unless such circuit is sooner *"-* shall be demonstrated. '

made operable, provided that during j7J.At least once per operating cycle 7 1 such seven days allsactive components / b. msnual operability of the bypass valve g.

of the other standby gas treatment M g/ /g. c) /

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- F # yc for filter cooling shall be dueenstre circuit shall be operable.

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4. If these conditions cannot be met, c. When one circuit of the standby gas treatment system becomes inoperable ,

procedures shall be initiated t sha H k M a h W inr:ediately to establish reactor o rc

' MN conditions for which the standby not required.

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gas treatment ".ystcn f I m C'T R

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B G TECH *itCAL SPCCIFICATICNS_

.L ja,,ggg, ~ I 3.7.8 Standby Gas Treatment System Ust the reactor butiding ateosphere to The star.dby gas treatrent system is designed to filter ar.d exh:Both stancy gas treatmant system fans the stack during secondary cantain: cr.t isolatien conditions.

q are destgr.ed to autcrratically start upon contairrr.ent isolationShould andonetosystem maintain the reactor b pressure to the design r.egative pressure so that all leakage should be in-leakege.Each of the two fans has 10 fail to start, the redundant system is designed to start automatically.

[percentcapacity.

High efficiency particulate absolute (HEPA) filters are installed before and after the charcoal ad to minimize potential release of particulates to the envirorcent and to prevent clogging of the iodine adsorbers.

environment.

The charcoal adsorbers are installed to reduce the potertial g release bypass leakage for the ch:rcoal *.dsorbces and a HEPA cffic:crcy of.ethv )iedide at least 99gpercent rer.- al o particulates. The laboratcry carbo.i scep'c test results sheu!d indicate a ....m uuIf the ef icier,cies rencval efficiency of at least 95 percent for expected accident conditions. be less than the of the HEPA filters and charcoal adsorbers are as specified, the resulting doses wil' 1Q. fro 100 cuidelines fs-.de,,, accidents analyzed.J Cperation of the fans significant'y different f ,

pT EN /b design flow will change the ren.,vai ctricicncy of the NEPA filters and charcoal adsorbers.  !

Only one of the two standby gas treatment systems is needed to cicanup the reactor buildir.g at=os If one system is found to be inoperable there is no israediate threat to Mh upon contairment isolation.

  1. [. the containment system performance and reactor operation or refueling operatio'n g

repairs are being made.

standby gas treatment system is not required.

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oas T:Cseca &%ues i i 9 -st}., , Standby Gas Treat.-ent Syste- less thar 6 nches of water at 4.7.3. d b s are not c ogged by excessive Pressure the system design drop across flow rate will indicate thethatco-bined the filters andHEPA a sor er filters and ctarcoal a .ounts of foreign matter.at least once por sela op* rating cycle c red h E2ft to sPc. systen i.&.!-t-:r: ;cd eparfemarce rre u

  • nrbersca;;bility, The frequency of tests and ll]

rfom as evaluat s'oro tne r plecc.crcoal ahalysis are nermw to sh adsorders uith et haloganated tht t hydrocarton refri - ge. r orted in accordance with USAEC Report 07-1082. for the rer:vai or Standard M-16-1T/ The enarcoal adscrber ef ficiency test procedures should all:w p [#. I g h can one acsoroer Eachtray, srple emptying should be atof at least two sccples. If test results are unccceptable, least or.e twobed idaall 1.52. inches adsorbent fec, the in dicacter in,thetray The replacerr.cnt tray, and system for d amixing length equal shall be repla th 

               .F# g    y                                                                                                              lity. Tests of the HEFA filters thickness the adsorber of the traybed.j removed with for the  an testadsor'ocnt shocid meet      qualified the sane adsorbent           according       quaAny f Regulatory to Table GuideHEPA 1 of Regul 1.52. filters found da with 00p aerosol shall be performed in acccedance to ANSI N101.1-1972.

shall be replaced with filters qualified pursuant to Regulatoryi Position the test of C.3.d heate. o i 

               /[ad    *4 All     elements of the heater should be demonstrated tm to be functional

[ ,, . capacity. spre externally 'cag the 'I linear ust fan in op- tion. 0 -rosol shal n of 00P the fan NSb W doo closed check the y ket scal. ny dote .st repea peri ry o ach res,. tive doorptable t re uit an be gaskets airs an ' A88f ns . ad an u. =t*e_ A=-M , h :p n :h = t b: ::d wfs e& g:' sh:11 b 

                 #j               F :yncr. dc;ir.: ;-: p m eat *- tM "It-r/ m e A-Tevel   w p, cm i. uy-pass ieaxd5e ii uo th0 5'4L               _

h coal adsorber , could become contaminatedThefrom determinationthe fumes, of significantchemicals shall be made by or foreig

Sall be performed as required for operational use. Knowledgeable staff members should be consulted prior the operator on duty at the time of the incident.

to making this determination. umiliv vi siit.er cco.ing i:. inc;n 7 E w o.u.m on of the automatic initiation capn iii b o %~If one standby hpas treatment s reactor operi system is ino asw er ay nem perrorrance capability.This substantiates the avnilability of the operable syste'n and t mast be i.ested daily. can continue for a limited period of time. er refueling operation

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                                                                                                                           ~     .T G                                  ooi24               Gboi2                                                     O ..f.4 PWR AND 8WR TECHNICAL SPECIFICATIONS 1.:

I 4.0 SURVE!LLANCE REQUIREE NTS 

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3.0 LIMITING CON 0!TIONS FOR OPERATION . +m

8. Control Roers Air Trea*===t swstem
8. Control Room Air Treatment System '

At least once per operatino cycle, the R

1. Except as specified in Specification ,, .

pressure drop across the castined MM 3.0.8.3 below, the control room air filters and charcoal adsorter banks . treatment system and the diesel ( g/ j A h d ' I shall be demonstrated to be less them generators required for operation 6 inches of water at system design fles ' of this system shall he ansrable Ng& y41 9 M -<at all timmt filteority "--Contjainmen is movind. 37# O[ ,, sa2.d a. TThe >_. tests and sample amelysis of 

                                                                                                                                     ' 4A 9

Specificat%cn 3.0.8.2 shall be ,4

2. a. The results of the in-place cold performed initially and at least - 4 DW and halogenated hydrocartpon I once per year servicei e tests at design ficws on'HEPA or after of ten Fx filters and charcoal adsorber banks /[. en and ft igni  %

shall show >995 00P removal and >995 painting, fire er 1 release % halogenate O ydrocartan removal.- in any ventilation zone communicattig { ;<

4
b. The results of laboratory cartpon I with the systen.

Y? sample analysis shall show >905

b. Cold.00P testi shall be perftrum8 , y 4

radiesctive methyl iodide removal / after each or partial at a velocity within 20% of system Q filter beak er , Wip. 0.05 to 0.15 mg/k3 inlet iodide Og., ment of theany structure 1 amistenance en to concentration >955 R.H. and >125'F. 

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system housieg. _j

c. Fans shall be shown to operate within
                         +101 design flow.
c. Malogensted hydrocorten MM et P
                         -                                                                 he perferend efter eseh                               "

b partial repleesment of the datestaadsorb maintenance on the system hose W {

d. Each cirentt shall be operated at leasGDboves)very-Snth.

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P'JR AND m:R TEC1"l! CAL SPECIFICATIO:!S_ .q 

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f , t 4.0 SURVEILLANCE REQUIREMENTS ~ 7, ; 

                                                                                                                                              ,I 3.0 LIMITI E CONDITIO:ts FOR OPERATION                                                                               a w .,
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At least once per operating cycle 4:h 3. automatic initiation of the control 

          '                  3     From and after the date that the .

control room air treatment system . room air treatment gystem shall be. J.,j((t'@ is made or found to be inoperable de:nonstrated. M4 for any reasor., reactor eceration ,ifj 3 or refueling operations is fj i per:nissible only during tha , ' crig g l succeeding seven days unless such . 

    .                               circuit is sooner made operable.                                                    .
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4. If these conditions cannot be met, -

l' reactor shutdown shall be initiated - 

                                                                                                                                   "~d, and the reactor shall be in cold                                                                MK ggq shutdown within 24 hours for reactor operations and refueling                                                                yqf operations shall be terminated                                                                  Ol.

irmediately. * - + , 

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Pk'R AftD BifR TECl%ICA!. SPECIFICATIONS _ las3, Control Room Air Treatnent System _ for intake air 3.0.8. h The control room air treatment system is designed to filter the control room atmosp ereThe con i in the control room and/or for recirculation during control roon isolation conditions. system is designed to automatically start upon control room k isolation and to ma nta pressure to the design positive pressure so that all leakcge should l adsorbers beto out lea age. High efficiency particulate absolute (HEPA) filters are installed before the charcoaThe charco prevent clogging of the iodine adsorbers. The in-place test results should indicate a system leakd a HETA effic intake of radio 1odine to the control room. 

             -      tightness of less than 1 percent bypass leakage for the charcoal adsorbers anThe laboratcry carbo least 99 percent removal of CDP particulatos.         least 90 percent for expacted accident   ltingconditions.

doses 

                 , a radioactive methyl todide removal efficiency of at will be less than the allowable               Operation of levels the fans stated significantlyin     Criterion different     from the 19 of the Ge                           a
                                                                                                                                                                         )

Power Plants. Appendix A to 10 CFR Part 50. design flow will change the removal efficiency of the HEPA filtersd reactor and charcoal adsorb { ile repairs are being made. u If the system is found to be inoperable, there is not i;rcediate threat to wr. ld shutd the control;dj room operation or refueling operation may continue for a limited period of time wh If the system cannot be repaired within seven days, the reactor is shutdown and brough within 24 hours or refueling operations are terminated. K w 3 

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f PW A';D SG TECH!!ICAL $PECIFICATIONS_ , ki Seses n 4.0.8 Control Reca Air Treatment System _ ie L Pressure drop across the co:6tned HEPA filters and charcoal a Pressure drop should be detemined at least once per operating cycle amounts of foreign matter. to show system performance capability. " The frequency of tests and sample analysis Tests of the are r.ecessary charcoal adsorbers with halogenated to show that the HEPA fi hy*irocarbon adsorbers can perfom as evaluated. -1082. Iodine ,rgeval efficiency tests shall shall be perfomed in accordance with USAEC RepcrtThe charcoal cdsorber efficiency testl procedures d sh follow ROT Standard H-16-1T. removal of one adsorber tray, ecptying of one bed from the tray, mixing the obtaining at least two sampics. If test results are unacceptable, all adsorbent in the system 

 .                                                                                                                                                                              The equal to the thickness of the bcd.

shall be replaced with a adsorbe t qualified iccordir.g.to Table 1 of Regulatory Guide 1.5 replacement tray for the adsorber cray recoved for the test should meet the same a Tests of the HEPA filters with 00P aerosol shall be perfont.ed in accordance to AflSI fl1 

         '                             My HEPA filters found defective shall be replaced with filters qualified pursuant to Reg Position C.3.d of Regulatory Guide 1.52.

Operation of the system for 10 hours every month will ds..onstrate operabjlity of the adsorber system and remove excessive moisture built up on the adsorber. at If significant painting, fire or chemical release occurs such that the HEPA filter or ch adsorber could become contaminated from the fu:es, chemicals The detemination or foreign materials, of the sa and sample analysis shall be perforred as required for operational use. Knowledgeable significant shall be made by the operator on duty at the time of the incident. staff menbers should be consulted prior to rakf r.g this determination. Demonstration of the automatic initiation capability is necessary to assurs, systern perfon-an

  • capability.

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