ML20133D349
| ML20133D349 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 07/22/1985 |
| From: | Wojnarowski J COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20133D351 | List: |
| References | |
| 0397K, 397K, NUDOCS 8510090037 | |
| Download: ML20133D349 (3) | |
Text
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O One First National Plaza. Chicago, lilinois Commonwealth Edison Address Reply to: Post Office Box 767 Chicago, Illinois 60690 July 22, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Quad Cities Station Unit 2 Stainless Steel Pipe Inspection and Repair Results NRC Docket No. 50-265 Reference (a):
D. B. Vassallo letter to D. L. Farrar dated May 13, 1985.
l l
Dear Mr. Denton:
The referenced letter concluded Quad Cities Unit 2 could be safely returned to service based on Commonwealth Edison's previous submittal. Nevertheless, the NRC requested additional information in order to formally complete their SER.
Enclosed as attachments to this letter is the summary of the Quad Cities Unit 2 Spring 1985 ISI results and our consultants (NUTECH Engineers) report on the evaluation and disposition of flaws found on Unit 2.
If you have any questions regarding this matter, please contact this office.
One signed original ano forty (40) copies of this letter and the attachments are provided for your use.
{
NthV J. R. Wc(jnarowski Nuclear Licensing Administrator 1m Attachment cc: Region III Inspector - QC I 2.dj p gf5I R. Bevan - NRR M. C. Parker - State of Il B510090037 850722 0397K PDR ADOCK 05000265 G
e r
ATTACHMENT 1
SUMMARY
OF THE QUA0 CITIES UNIT 2 SPRING 1985 ISI RESULTS 0397K e
w
A_UGMENTED ISI OUAD CITIES 2 SPRING 1985 TOTAL WELDS UT EXAMINED - 1985 TOTAL WELDS CRACKED l 1985 l ADDITIONAL EXAMS SYSTEM l (304SS) l ISHI l
SAMPLE l
IGSCC l
1985 l
l l
1 l
l Recirculation-l l
I b
I d
i a
a,c Risers (12")
l 44 4
10 3
14 l
0 2
0 2
l Noz-SE l
10 l
Ring Header (22")l l
l l
l Butt Welds l
14 l
2 2
_1 0
l 4
l Sweepolets l
_8 1
0 1
2 1
0 l
2 l
Outlets (28")
1 30 1
7 l
2 1
0 1
9 l
Noz-SE l
2 1
0 l
1
_1 0
1 1
l Bypass Stubs l
l l
l l
l (4")
l 8
l 0
l 2
1 0
1 2
_l l
l l
l l
l Residual Heat l
l Removal l
l LPCI (16")
l 32
[
0 6
0 6
l SD Cooling (20")l 18 l
1 3
0 4
l
_ Head Spray (4") l 17 l
0 1
3 1
0 1
3 l
(6") 1 5
1 0
1 4
1 0
1 4
l l
l l
l l
l Core Spray (10")
27 0
5 0
5 l
l Reactor Water l
l l
l l
l Cie. to (6")
l 8
1 0
1 3
1 0
l 3
l l
l l
l l
l CRD Return (4")
1 7
1 0
1 2
1 0
l 2
l l
l l
l l
1 Head Vent (4")
l 3
1 0
l 3
1 0
l 3
l Jet Pump Instru-mentation l
10 l
0 l
10 l
0 l
10 l
(Total Assemblies)l l
l l
l l
l 1
l l
l l
l l
l l
l l
l 243 l
14 l
60 l
3 l
74d l
a Includes one weld with Lack of Fusion in 1983; called IGSCC in 1985.
b Includes 7 welds in second sample due to IGSCC being found in the original 7 weld sample.
C Weld overlayed in 1985, d
In addition, one overlay was UT examined and 3 overlays were MINAC examined in 1985.
0408B/47
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