ML17275A934
| ML17275A934 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 03/25/1981 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Ferguson R WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| References | |
| NUDOCS 8103310166 | |
| Download: ML17275A934 (6) | |
Text
W Docket No.: F50=397~
7 le 2 5 581 DISTRI BUT-ION-.
+Docket Filed LBTIil Rdg DEisenhut BJYoungblood DLynch MRushbrook RTedesco RVollmer SPawlickz DSmith bcc:
TERA NRC/PDR L/PDR NSIC TIC ACRS (16)
- Washington Public Power Supply System ATTN:
Mr. R. L. Ferguson Managing Director 3000 George Washington Hay P. 0.
Box 968
- Richland, Washington 99352
Dear Mr. Ferguson:
TMurley DRoss RNanttield ke YNoonan
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Subject:
Evaluation of the Hardship Request Exemptions for in the HNP-2 SSH In your letter dated February 20, 1981, you requested exemptions from the requirements of AHS Dl.l ( 1973) for 21 weld joints in the sacrificial shield pall (SSW) of the WNP-2 facility. Specifically, you described 15 weld defects
,representative of these 21 joints.
He find that we can accept all but two of these weld joints without corrective action based on our technical evaluation of the actual defects'nd your rationale for accepting these joints in their present condition.
We conclude that the weld joint identified as weld number H3-92 should be repaired to comply with AWS Dl.l inasmuch as the porosity of this joint is too high to be accepted.
lthile we recognize that you state this particular defect is in a highly restrained region of the
- SSH, we find that the significant amount of porosity shown in Figure 2 of your February 20th letter overrides the balancing concern regarding the restraint.
Additionally, we cannot accept the defect in weld number W130-197.
While we recognize that this particular defect, an underfilled overhead fillet weld (3/8 inch, underfilled by 1/16 inch) is relatively minor, you have not provided sufficient technical justification to permit us to accept this 16 percent reduction in weld area over the entire 30 inch length of the weld.
Your justification for accepting this weld without corrective action should be based on considerations of the structural margin, if possible, or on a similar rationale.
OFFICE)
SURNAME/
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PORC FORM 318 IIO/801 NRCM 0240 OFFICIAL R ECOR D COPY
- USGPON 1980-329.824
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Mr. R. L. Ferguson 2
lf you have any questions on this matter, please contact the Project Manager, H. D. Lynch, at 301/492-8413.
Sincerely, anginal etgned by Rpbert J
Tedeaoo Robert L. Tedesco, Assistant Director for Licensing Division of Licensing cc:
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NRC FORM 318 IIG/80I HRCM 8240 OFFICIAL RECORD COPY o USGPO.'980-829 824
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R.
L. Ferguson Managing Director Washi'ngton Public Power Supply System P.
0.
Box 968 3000 George Washington Way
- Richland, Washington 99352 ccs:
Nicholas, Reynolds, Esq.
Debevoise 5 Liberman 1200 Seventeenth
- Street, N.
W.
Washington, D.
C.
20036 Richard g. guigley, Esq.
'Washi'ngton Public Power Supply System P.
0.
Box 968
>>,'";.Ri.ch'land, Washington 99352 r
Nicholas Lewis, Chairman Energy Facility Site Evaluation Council
-820 East'ifth Avenue Olympia, Washington 98504 Hr. 0.
K. Earle
'icensing Engineer P.- 0.
Box 968 Richland, Washington 99352 Nr. Albert D. Toth Resident Inspector/WPPSS-2 NPS c/o U.
S. Nuclear Regulatory Commission
,P.
0.
Box 69 I
- Richland, Washington 99352 4
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