ML20127H454
| ML20127H454 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 01/07/1975 |
| From: | Ziemann D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Mayer L NORTHERN STATES POWER CO. |
| References | |
| NUDOCS 9211180517 | |
| Download: ML20127H454 (6) | |
Text
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Docket SVarga AEC PDR Cliebron Local PDR RSchemel JAN O ' 1975 ORB #2 Reading ACRS (16)
Attorney, OGC IUMcAlduff R0 (3)
JRBuchanan ik>cke t Co. 50- 2r 3 liDube TBAbernathy BJones (4)
OG RVollmer JSaltzman Northern States Power Corpany RMDiggs AT*:~i t fir. L. O. Mayer, Director DLZiemann of Nuclear Support Services gnecyeg 414 Nicollet Mall SRari Minneapolis, Minnesota 55401 993113,,
BScharf (15)
Gentlemen:
TJCarter PCollins Our review of your Technical Specifications relcted to inctalled filter systers indicates a need for additional Limiting Conditions for Operction (LCO) and Surveillance Requirements. Thene are required in order to ensure high confidence that the systemn vill function reliably, when needed, at a derree of efficiency equal to or better than that ansum a in the accident analyses.
In order to armint you in the preparation of appropriate revinions, vc have prepared rodel Technical Specifications which include LCO's, sun'cillance Requirements an 1 lianca f or the Standby Cas Trentr'ent System at Monticello Nucicar Conoratinr, Plant.
You are requested to subnit by no inter than 45 dayn from the date of this letter an application for nwndnent to your licence that would chanre the Technical Specifications related to inritalled filter syntens so as to be itt confornance with the requirerents in the encioned rodel
~1cchnien1 Specificationn.
Sinecrcly, originnt signed t'7 twutis L IhSV'""
Dennis L. Ziemann, Chief Operatinr Reactors Branch #2 Directc?cte of Licensinr.
Ltclonare :
?%'^1 TCChniCal Specification" Cc
- Set nCKt paPc 9211100517 750107 PDR ADOCK 05000263 P
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L:0RB 2 L' ORB #2 oe ric a,
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ER e es/tc DLZiccann 1/ 7 /75 1/[ /75 m,.
Terra ALC !15 (En. 9-53) AICM 020 Q v. s. oovannessNT enmtm orrica iore.sn.ies f
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-i Northern States Power Company 2
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.i cci Arthur Renquist, Esquire The Environmental Conservation Vice President - Law Library Northern States Power Company Minneapolis Public Library 414 Nicollet Mall 300 Nicollet Mall-Minneapolis, Minnesota 55401 Minneapolis, Minnerota 55401
.J Cerald Charnoff Shw, Pittman, Potte, Trowbridge and Madden 910 - 17th Street, N. W.
f Washington, D. C.
20036 lloward J. Vogel, Esquire Legal Counsci 2750 Dean Parlway Minneapolis, Minnesota 55410 i
J Steve Cadler, P.LE.
2120 Carter Aveaue St.' Paul, Minnesota 55108 Mr. Danici L. Ficker Assistant City Attorney 638 City Hall St. Paul, Minnesota 55102 i
Ken Dzugan, Director-City of St. Paul Pollution Control Services 100 East 10th Street St. Paul, Minnesota 55108 Sandra S. Cardebring Special Assistant Attorney General Counsel for Minnesota Pollution Control Agency
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1935 W. County Road B2 Roseville, Minnesota 55113 Anthony-2. Roisman, Esquiro Berlin, Roisman and.Ressler-1712 N Street,-N. W.
Washington, D. C.
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BWR TECHMICAL SPECIFICATICN3 F
4.7 SURVEILLA'!CE REQUIPEENTS 3.7 LIf1ITIf;G CONDITIONS FCR OPEPATIC1 S.
Standby Gas Treatment System B.
Standby Cas Treatment System 1.
At least once per operating cycle, the 1.
Except as specified in Specification following conditions shall be demonstrated, 3.7 B.3 below, both circuits of the standby gas treatment system and the Pressure drop across the cer:bined a.
diesel ger.erators required for HEPA filters and charcoal adsorber operation cf such circuits shall be banks is less than 6 inches of operable at all tices when secondary water at the system design flow containment ' tegrity is required.
rate.
The results of the in-plcce cold DO?
. Inlet heater input is capable of 2.
a.
b.-
and halogenated hydrocarbon tests at reducing R H. from 100 to 70% R.H.
design flows on HEPA filters and charcoal adsorber banks shall show Air distribution is unifona within
>99% DOP removal and > 99%
c.
20% across HEPA filters and charccal Ealogenated hydrocarbon removal.
adsorbers.
b.
The results of Ic5cratcry carbon The tests and sample analysis of 2.
a.
sample analysis shall shou >95%
Specification 3.7.8.2 shall bc l
radioactive mathyl iodide rEhaval perforced initially and at least at a velocity within 20 percent of cnce.per year for standby service actual systcm dcsign, 0.5 to 1.5 cr af ter cvery 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of mg/m3 inlet methyl iodide concentra-systca cparation and fol! cuing ticn, >70% R.h. and >lE5"F.
significant painting, fire ce chemical release in any ventilation Fans shall be shown to operate within acne ccacunicating with the system.
c.
+10; design flew, b.
Cold LO? testing shall be perforr.cd after each complete cr partici replacement of the HEPA filter bank er af ter any structural maintenance cn tne system housing.
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Bk'R TECHNICAL SPECIFICATIONS e
4.0 SURVEILLANCE REQUIFEMENTS 3.7 LIMITING CONDITIONS FOR OPERATION H21cgensted hydrocarbon testing shall c.
be performed af ter each complete or partial replacement of the charcoal adsorber bank or after any structural maintenance on the system housing.
d.
Each circuit shall be operated with the heaters on at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every r.onth.
Test sealirig of gaskets for housing e.
doors dc.cnstream of the HEPA filters and charcoal adsorbers shall be performed at 'nd in conformance with each tes; per ar.nad for compliance with Specification 4.7.6.2.a and Specification 3.7.B.2.a.
System drains where present shall be inspected 3.
3.
Frca and af ter the date that one cuarterly for adequate water level in circuit of the standby gas treatment loop-seals.
system is made or found to be At least cr.ce per c,iarat! g cycle inoperable for any reason, reactor 4.
a.
operation and fuel handlino is autcmatic initiation of each branch e
permissible only during the succeeding of the standby gas treatment system seven dayr unless such circuit is socner shall be demonstrated.
made operab.1, provided that during such seven c ys all active components b.
At least once per operating cycle of the other standby gas treatnant manual cperability of the bypass valve circuit shall be operable.
for filter cooling shall be demonstrated.
Ehen one circuit of the standby gas 4.
If these conditions cannot be met, c.
procedures shall be initiated treatment system becor.;cs inoperable
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immediately to establish reactor th th r circuit shall he demonstrated conditions for which th' standb},
to be operable immediately and daily l
gas treatm^nt systcc is not required, thereafter.
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