ML20054C054
| ML20054C054 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 04/14/1982 |
| From: | Novak T Office of Nuclear Reactor Regulation |
| To: | Delgeorge L COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8204190434 | |
| Download: ML20054C054 (4) | |
Text
.
\\
(
APR 141982 Distribution:
Docket File JHel temes Docket flo. 50-295 NRC PDR Local PDR
, i,-
" Rd9 fir. Louis 0. DelGeorge v
senhut Director of Nuclear Licensing
/
3 OELD d8' Commonwealth Edison Company 01&E (1)
, 9 '+k
{4 Post Office Box 767 m
0" j[
Chicago, Illinois 60690 f[9 NSIC
'+
Dear ifr. DelGeorge:
ACRS (10) g On March 25, 1982, Commonwealth Edison Company (CECO) met with the.staffy cp to discuss the recovery program of the damaged ID steam generator'ahd; U-bend cracking problem in all the Zion Unit No.1 steam generators. Our meeting summary is being prepared and will be issued in the near future.
On April 1,1982 in a CECO letter to the NRC, the repair program to the 1D steam generator was again presented. We lave reviewed this program and find it acceptable on the basis that further review and approval will be necessary for the final inspection of the ID repair work on the tube ends.
Approval is granted, therefore, for you to repair the ID steam generator tube end damage. Our approval of the final test and evaluation phase of the repair program for ID steam generator will be provided by separate letter consistent with the repair schedule.
In our meeting on March 25, 1932 we discussed the eddy current testing (ECT) of the Unit 1 steam generators and the evidence of U-bend cracking in the tubes. We are also concerned with the damage occurring at locations associated with anti-vibration bars. In this regard, we have requested that you provide a formal submittal on the ECT results, your evaluation of these results, and the basis upon which you believe that steam generator tube integrity will be maintained in future plant operation cycles. This submittal should include the results of all Unit 1 tube exaninations and i
should be submitted on a schedule that will permit our review and approval
(
of any proposed actions before the Unit 1 returns to power.
l As a prior requirement of the Zion Station, the NRC had requested that the j
Technical Specifications be revised to include the more restrictive limits l
of the current or Standard Technical Specifications for iodine activity in the primary system. We believe you should accelerate your review efforts in this matter. We are prepared to act upon your request for this Technical Specification change before Unit 1 is scheduled to return to power.
If there are any questions in this matter, please let us know.
Sincerely, 8204190434 820414 epicINAL SIGSD PDR ADOCK 05000295 P
PDR Thomas M. Novak, Assistant Director See attached for previous for Operating Reactors nbhbn cf Lken;ing enneurronem 1 b.........
OF FICE )
~
~~.a aa -
- a a..
.a
- a.
~
."."."a" SORNAME)
.........a."a.
a.~ an aa.aa ana. a a...~ a a
~**aan.
a.
~ * **
4.182
-...-a...........
o->
kac ronu ata oow nneu oua OFFiClAL RECORD COPY uswo mi-me
f i
Distribution:
Docket File JHeltemes NRC PDR Docket No. 50-295 Local PDR/
ORB #1 Rdg DEisenhut OELD
/
Mr.. Louis 0. DelGeorge E(
Director of Nuclear Licensing Commonwealth Edison Company 99b CParrish Post Office Box 767 Chicago ~, Illinois 60590 S (10).
Dear Mr. De1 George:
l On March 25, 1982, Commonwealth Edison Company (CECO) met with the staff to discuss the recovery program of the dariaged 10 steam generator and the U-bend cracking problem in all the Zion Lfnit No. I steam generators. Our meeting summary is, being prepared and will be issued in the near future.
On April 1,1982 in a CECO letter to the NRC, the repair program to the 10 steam generator was again presented, je have reviewed this program and find it acceptable on the basis that further review and approval will be necessary for the final' inspection of the 1D repair work on the tube ends.
Approval is granted, therefore, for/you to repair the 1D steam generator tube end damage.
Our approval of Ahe final test and evaluation phase of the repair program for 1D steam generator will be provided by separate letter consistent with the repair / schedule.
i In our meeting on March 25,198%we discussed the eddy current testing (ECT) of the Unit 1 steam generators ;and, the evidence of U-bend cracking in the tubes. We are also concerned viith the damage occurring at locations i
associated with anti-vibrattori bars.
In this regard, we have requested that you provide a formal subhittal on the ECT results, your evaluation of these results, and the ba)ftis upon which you believe that steam generator tube integrity will be mainfained in future plant operation cycles. This submittal should include the results of all Unit 1 tube examinations and should be submitted on a schedule that will permit our review and approval of any proposed actions before the Unit 1 returns to power.
?
As a prior requirement of the Zion Station, the NRC had requested that the t
Technical Specifications be revised to include;the more restrictive limits of the curre1t or Standard Technical Specifications for iodine activity in the primary system. We believe you should accelerate your review efforts in this matter. We are prepared to act upon your request for this Technical Specificat'aon changefbefore Unit 1 is scheduled to return to power.
/
If there are any questions in this matter, please let us know.
Sincerely, l
l l
/
Darrell G. Eisenhut, Director N
n4v4einn n # f f rsn e f n e.
....1:3.i4 1..
o8,8h D'..:.9.R
,,g,pg
,p,{,gg,,
DL {p,,,,
.."W:3 Esa e,,,c o
...ms.9.u.k.......w.9.us. tin..,,...GL.ana adt.
..D.G.E1,s,en,hu t, inl8M Dy/,/82 f
.o_o
.../.1 /. 82 4/ /82
.../..L /.82 82 4
4 4
(.....y,.......... /....../. 8 2
/4 4
3 omy nne ronu ais oomacu oua OFFICIAL RECr COPY usam, -us.m
[
+
Distribution:
Docket File NRC PDR Docket flo. 50 295 Local PDR ORB #1 Rdg D. Eisenhut 0 ELD Mr. Louis 0. Delseorge OI&E (1)
Director of fluclea Licensing 0Wigginton Commonwealth Ediso ompany CParrish /
Post Office Box 767 NSIC
/
Chicago, Illinois 60 90 ACRS(lf)
JHelte es
Dear Mr. DelGeorge:
On March 25, 1982, Commonwealth Edison Company (Ceco) met with the staff to discuss the recovery prograg of the damaged l@ steam generator and the U-bend cracking problem in all the Zion Unit !!o11 steam generators. Our v6eting summary is being prepare'd and will be 1/ sued in the near future.
s As a result of the meeting, we haVe granted approval for you to continue with the repair program as outlined \\at the meeting with the understanding that we are still evaluating the needsto establish additional testing requirements on the repaired welds. Ottr appfoval of the final test and evaluation phase of the repair program fqr,1D steam generstor will be pro-vided by separate letter consistent with the repair schedule.
/\\
As a result of the eddy current testing (ECTK,of the Unit 1 steam generators and the evidence of U-bend cracking in the tubes, we agree with the Ceco decision to plug row one tubes. He are' also co'ngerned with the damage occurring at locations associated witt/ anti-vibration bars. In this regard, I
we have requested that you provide a, formal submittal on the ECT results, your evaluation of these results, and the basis upo('which you believe that steam generator tube integrity will /be maintained in future plant operation cycles. This submittal should include the results of s11 Unit 1 tube examinations.
As a prior requirement of the Zipn Station, the NRC had requested that the Technical Specifications be revised to include the more resth ctive limits of the current or Standard Technical Specifications for iodine {\\ activity in the primary system. We believ6 you should accelerate your revi'aw efforts in Specification change before Un/to act upon your request for this Technical this matter. He are prepared i
it 1 is scheduled to return to powerl
/
\\
If there are any questions n this matter, please let us know.
\\
Sincerely, i,
Darrell G. Eisenhut Director Division of Licensing See next page 9 t/ @
l cq: 3 8..
..t OFFICE >
sunme > D.I..S.9.i n to n :m sSAVarga TMNovak DGEisenhut......,i W. M gr N _,MA N.k82 3/,./92..
3,/,,,,,/8 2 3/,,, /,82 p '1,,[L
,,,,g2,,
om) sac eonu ais iase sace om OFFIClAL RECORD COPY usa ne,-mm
Mr. Louis 0. De1 George Commonwealth Edison Company cc:
Robert J. Vollen, Esquire 109 North Dearborn Street Chicago, Illinois 60602 Dr. Cecil Lue-Hing Director of Research and Development Metropolitan Sanitary District of Greater Chicago 100 East Erie Street Chicago, Illinois 60611 Zion-Benton Public Library District 2600 Emmaus Avenue Zion, Illinois 60099 Mr. Phillip P. Steptoe Isham, Lincoln and Beale Counselors at Law One First National Plaza 42nd Floor Chicago, Illinois 60603 Susan N. Sekuler, Esquire Assistant Attorney General Environmental Control Division 188 West Randolph Street, Suite 2315 Chicago, Illinois 60601 U. S. Nuclear Regulatory Commis, ion Resident Inspectors Office 105 Shiloh Blvd.
Zion, Illinois 60099 James P. Keppler Regional Administrator - Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 i
l f
. _ _ _ _