L-76-001, Letter Responding to IE Bulletin 76-01 Concerning Integrity of Isolation Condensers Tubes

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Letter Responding to IE Bulletin 76-01 Concerning Integrity of Isolation Condensers Tubes
ML17037B565
Person / Time
Site: Nine Mile Point 
Issue date: 03/16/1976
From: Schneider R
Niagara Mohawk Power Corp
To: O'Reilly J
NRC Region 1
References
BL-76-001
Download: ML17037B565 (6)


Text

NRC FoRM 195 (2-76) +

U.S. NUCLEAR REGULATORYi 1MISSION DOCKET NUMBER NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL FILE NUMBFR o

TO:

Mr O'Reilly FROM:

Niagara Mohawk Wg Corp

Syracuse, NY R R Schneider DATE OF DOCUMENT 3-16-76 DATE RECEIVED 3

19 76

%LETTER

. QORIGINAL Scot v DESCRIPTION C3 NOTOR IZE0 0 UN C LASS IF I E 0 PROP INPUT FORM ENCLOSURE NUMBER OF COPIES RECEIVED none signed Ltr re IK Builetin 76-Ollfurnishing info conce n-ing integrety of isolation condensers tubes...

PLANT NAME:

Nine Mile Pt /Pl

~8~0@e~ZDG SAFETY ASSIGNED AD

BRANCH CHIEF:

FOR ACTION/INFORMATION ASSIGNED AD:

BRANCH CHIEF

~

ENVIRO 3-22-76 ehf PROJECT MANAGER:

LIC~

SST PROJECT MANAGER

~

LIC~ ASST EG FIL NRC PDR E

INTERNALDISTRIBUTION ERNST I&E GOSSICK & STAFF LPDR ~

su~

o TIC

~NS ASLB NRC FORM 196 (2-76)

. SEh PROJECT MANAGEMENT BOYD P

COLLINS HOUSTON PETERSON MELTZ HELTEMES j

SKOVHOLT ENG N~EER C

KNIGHT SIHI<EIL PAVLICKI REACTOR SAFETY ROSS NOVAK ROSZTOCZY CHECK AT & I SALTZtIAN RUTBERG EXTERNAL DISTRIBUTION NATL LAB REG, V-IE LA PDR CONSULTANTS BENAROYA IPPOLITO OPERATING REACTORS STELLO OPERATING TECH EISENHUT SHAO BAER SCHWENCER GR3JIES SITE SAFETY & E R

ANALYSIS DENTON & MULLER BROOKEIAVEN NATL LAB ULRIKSON(ORNL)

ALLARD SPANGLER SITE TECH GA&IILL STEPP HULMAN SITE ANALYSIS VOLLMER BUNCH J,

COLLINS KREGER CONTFtOL NUMBER I

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I NIAGARAMOHAWKPOWER CORPORATION NIAGARA ~i MOHAWK

. 300 ERIE BOULEVARD. WEST SYRACUSE. N. Y. 13202 WarI,ch 16, 1976 A,. Jambe P. OIReilLy S~e&orxate o$ ReguLatotcg Op~os United S~n NucLearI. ReguLatorIy Comm& ak on Region I 631 ParI,k Avenue, King o$ PrI.@earn, Pa..

19406 3

pl q0~>

/

ls

-~/ >~TIT~&r RE:

Sock& No.

50-220 on cnp.

~o VearL h(rL. O'Reify:

In rxeeponee Xo IE BuLL~n 76-01 dated MarI.ch 9, 1976 Che golLoeing

~(orIm~n m rIeqturIed 'and ar.

enuInmated rin See enclosure ~ supplied.

1.

a)

The ietegrte@

o$ She ~option coIideJIren.'a Wbu ~ being maQ>-

4ained C&u peruo&c saIIIp&ng and evaLuation o$ She ~topic content o$ Che sheLL aide, IrraterL.

Timur. aampLing and evaLuation Iv~ occurs once an even@

96 bout peruod.

Milking XkQ, peruoNc aurLveM'ance ~n'he Mne (rIame convILitted, Lt m (eLt Chat verug smaLL Leakr.

IIrLom Xhe pruInarug sgaZem Co Che sheLL Irratw aide can.

be, dMeMed and app<oprmu!e action Wken be(orte Xh~ prIopagation Co

a. size uItu.ch IrrouLd prIoduce d&mtabLe veldt e$ gueet ax~on
above, backgrLound.

b)

Non-derWu~ve CerWng orL hydrLoa~c CerWng IIIML be. pecforInIed at Che net rLe)ueZLng oLtage.

c)

Actionr.

uIerLe pLanned and anpLemented pru.os Co We aruA~ )ueL LoaNng rin 1969, W araurIe prIoIIIpk dote~on o$ an ~olation condenrerL Wbe brLeak.

The. moLation condeeserI.

ay6Cem at Nne NXe Po~& Unit I concluder (ourL condense error., Wo rin each aa$~

gya4em.

Each ayakeInLb a 100'n sgrtem, ChM even rin Che unLikeLg evert o$ moLation o$ one, sg6Cem We otherL IIrouLd be InorI.e Chan abLe W prIovLde We actions rceq~ed.

To guarded agcu.m4 a, Wbe br'.eak, rex~on monktom were placed ~n She veIM grI.om each o$

ghe fourL condenr.error..

Thee mo~orLr prI.os& moLation o$ NIe condeeserI.

(agleam auppLg and condeua e, rL~n Co Ae rxean.os) upon, dWe~on o$

a, prIedeteenkned LeveL o$ radiation.

That set po~nt ~ such Chat We ceLeue IrrouLd be LoIu.ted Co 285 o$

10CFR20 dose fin~.

Ad~onalLcg, Ae ve< ruxdiafion moI~orLr. mead out

~n She Co>~oL Room and arLe logged

once, perL a1Li)4 (ChrLee Mnm drag).

Any Wend rin ver< rux~on Lev~ IrrouLd Chm be detected urdu,n an eigt< bout peru'.od and apprI.o~e action Wken.

r~

~?AGE 2

"'~E:

Sock& No.

50-2~0

~ blanch 16, 1976

~c j

2.

Complied.

3.

The, ceps iv~ be. sub~~ed iebtMn 30 days, as aequesCed, (scorn compZ~on date.

Vwy WuLy yo~,

730/aih Enc.

OruginaL Signed by R.R. Schneidm R.R. Sc nu.

eA Ace Pkesi de&

ELe~c Operations CC:

NRC Reg~onaL O]gce o$ Inepe~on and En(orccement

'0 0