ML17326A583
| ML17326A583 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 03/10/1980 |
| From: | Dolan J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| AEP:NRC:00370, AEP:NRC:370, NUDOCS 8003180473 | |
| Download: ML17326A583 (3) | |
Text
REGULA l'ORY I RMATION DISTRIBUTION SYS (RIDS)
ACCESSION NBR 8003180473 OOC ~ DATE 80/03/10 NOTARIZED NO FACI W~bL Donald C ~
Cook Nuclear Power P) ant p, Uni t ir Indiana
~onald CD Cook iVuclear Powe~ Planti Unit 2P Indiana 8
AUT
. ~
'4 AUTHOR AFF ILIATION OOLAVEJ ~ ED Indiana L Michigan Electric Co.
RFCIP ~ t'tAiME RECIPIENT AFF ILI ATIOtl OENTONPH ~ RE Office of Nuclear Reactor 'Regulation
SUBJECT:
Responds to NRC 800211 ltr re NRC interim position concerning containment purging 5 venting during normal operation.Tech Specs beina developed to, permit purging in Modes 1E2P3 L
4 S submitted next months DISTRI SOT ION CODE:
00300 COPIES RECEIVED:LTR l. ENCL +
SIZE:
TITLE: Containment Purging NOTES:
DOCKET 05000315 05000316 RECIPIENT IO CODE/NAME ACTION:
05 BC y INTERNAL:
12 17 ENGR BR 19 PLAiVT SYS BR 21 EFLT TRT SYS 24 E
REEVES EXTERNAL: 03 LPOR 25 ACRS COPIES LTTR ENCL 7
1
'16 RECIPIENT IQ CODE/NAME 02 iVRC PDR 15 CORE PERF BR 18 REAC SFTY BR 20 EEB 23 0
SHUM STS GROUP LEAOR 04 NSIC COPIES LTTR ENCL 1
1 1
1 1
5<3 c~q nfl e~t <<
TOTAL NUMBER OF COPIES REQUIRED:
LTTR ~
ENCL Q
INDIANA a MICHIGAN ELECTRIC COMPANY P. O.
BOX 18 BOWLING GREEN STATION HEW YORK, N. Y. 10004 Mar ch 10, 1980 AEP:NRC:00370 Donald C.
Cook Nuclear Plant Unit Nos.
1 and 2
Docket Nos.
50-315 and 50-316 License Nos.
DPR-58 and DPR-74 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.
C.
20555
Dear Mr. Denton:
This letter responds to Mr. Schwencer's letter of February 11, 1980 regarding the Commission's interim position concerning containment purging and venting during normal plant operation.
We are disappointed that after more than two and a half years of wor k to resolve this issue, we are still prohibited from purging in D. C.
Cook Unit No.
2 when operating in Modes 1, 2, 3, and 4.
In most cases, we believe that we have complied with the intent of Interim Position 1 as contained in the enclosure to Mr. Schwencer's letter.
Your letter requested us to commit to your Interim Position 1
on Unit 1 until you have completed your review.
Therefore, for the
- record, we hereby state that Unit 1 operation will comply with Interim Position 1 until your review is completed.
Interim Position 2 of Mr. Schwencer's letter is fully met for both Units 1 and 2 of the Cook Plant.
At the May 31, 1979 meeting with members of your staff and in our letter of June 29, 1979 (AEP:NRC:00114B),
we discussed the need for purging at length and provided a description of the way we conduct containment purging operations.
We consider purging in Modes 3 and 4 to perform required maintenance to be in compliance with the intent of Interim Position 1.
This is more beneficial than' cooldown to Mode 5
from the standpoint of (a) imposing unnecessary thermal stress cycles on the reactor coolant system and its components
- and, (b) reducing the potential for causing unnecessary challenges to the reactor trip and the safeguards systems.
Purging reduces operational hardships on the personnel performing required activities in the containment.
Please realize that even if purging operations are carried out in a way that fully complies with Interim Position 1 of Mr. Schwencer's letter, we may need to purge the containment for more than the earlier discussed limit of 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> per 8003 lao
Mr. H. R. Denton AEP: NRC:00370 year (AEP:NRC:00114A).
We interpret your interim position to allow us to exceed the 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> per year, as long as we operate, in a manner consistent with the requirements of Position l.
As the request of your staff, we are developing a Technical Specification to allow purging in Modes 1, 2, 3, and 4.
We anticipate submitting such a Technical Specification within the next month. It is our earnest hope that such submittal will finally allow the issue to be closed.
Very truly yours,
~e John E. Dolan Vice President JED:dr cc:
R.
G.
R.
R.
D.
C. Callen Charnoff S. Hunter W. Jurgensen V. Shaller - Bridgman