ML17291A790
| ML17291A790 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 05/08/1995 |
| From: | Clifford J NRC (Affiliation Not Assigned) |
| To: | Parrish J WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| Shared Package | |
| ML17291A791 | List: |
| References | |
| GL-94-03, GL-94-3, TAC-M90115, NUDOCS 9505180047 | |
| Download: ML17291A790 (6) | |
Text
Dear Mr. Parrish:
I e
May 8, 1995
" a. Hr. J.
V. Parriah (Nop 1023)
Yice President Nuclear Operations Washington Public Power Supply System P. 0.
Box 968 Richland, Washington 99352-0968
SUBJECT:
CLOSEOUT OF GENERIC LETTER 94'-03; CRACKING OF CORE SHROUDS" FOR THE SYSTEM NUCLEAR PROJECT N0..2 (TAC l
o IJ I'INTERGRANULAR,STRESS CORROSION WASHINGTON PUBLIG,'POWER SUPPLY NO. M90115) ff o
a Your [[letter::GO2-94-202, Responds to GL 94-03 Re IGSCC of Core Shrouds.Exam Summary Sheets for Facility H3 & H4 Core Shroud Welds & Drawings of Facility Core Shroud Weld Details Encl|letter dated August 24, 1994]], provided the Supply System's response to Generic Letter (GL) 94-03, "Intergranular cStress Corrosion Cracking of Core Shrouds in BWRs," for the WNP-2 plant.
The NRC staff required that licensees submit, pursuant to 10 CFR 50.54(f),
a written response to address specified information in the GL.
The NRC staff has completed its review of your response to GL 94-03.
The review is documented in the the enclosed safety evaluation.
Based on its review of the information you provided, the NRC staff concludes that while cracking cannot be entirely ruled out, the WNP-2 core shroud is not likely to contain cracks which could compromise its structural integrity.
The NRC staff also concludes that the licensee's materials-based safety assessment of the WNP-2 shroud is sufficient to justify continued safe operation of the unit until the next core shroud inspection and that a detailed consequence analysis is unncessary.
In accordance with the reporting requirements of GL 94-03 and your commitment in your August 24,
- 1994, response, you are required to submit, no later than 90 days prior to entering the outage in which the core shroud inspection is scheduled to occur, a detailed inspection scope for a more comprehensive examination of the WNP-2 shroud.
Sincerely, Jafaegl fJf LlH.II,denier Project Hanager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-397
Enclosure:
Safety Evaluation cc w/encls:
See next page 9505i80047 950508 PDR ADQCK 05000397 P
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Play 8, 1995 Mr. J.
V. Parrish
(
rop 1023)
Vice President Nuclear perations Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968
SUBJECT:
CLOSEOUT OF GENERIC LETTER 94-03, "INTERGRANULAR STRESS CORROSION CRACKING OF CORE SHROUDS" FOR THE WASHINGTON PUBLIC POWER SUPPLY SYSTEM NUCLEAR PROJECT NO.
2 (TAC NO. M90115)
Dear Hr. Parrish:
Your [[letter::GO2-94-202, Responds to GL 94-03 Re IGSCC of Core Shrouds.Exam Summary Sheets for Facility H3 & H4 Core Shroud Welds & Drawings of Facility Core Shroud Weld Details Encl|letter dated August 24, 1994]], provided the Supply System's response to Generic Letter (GL) 94-03, "Intergranular Stress Corrosion Cracking of Core Shrouds in BWRs," for the WNP-2 plant.
The NRC staff required that licensees submit, pursuant to 10 CFR 50.54(f),
a written response to address specified information in the GL.
The NRC staff has completed its review of your response to GL 94-03.
The review is documented in the the enclosed safety evaluation.
Based on its review of the information you provided, the NRC staff concludes'that while cracking cannot be entirely ruled out, the WNP-2 core shroud is not likely to contain cracks which could compromise its structural integrity.
The NRC staff also concludes that the licensee's materials-based safety assessment of the WNP-2 shroud is sufficient to justify continued safe operation of the unit until the next core shroud inspection and that a detailed consequence analysis is unncessary.
In accordance with the reporting requirements of GL 94-03 and your commitment in your August 24,
- 1994, response, you are required to submit, no later than 90 days prior to entering the outage in which the core shroud inspection is scheduled to occur, a detailed inspection scope for a more comprehensive examination of the WNP-2 shroud.
Sincerely, James l/I. %1HII, $hnior Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No.,50-397
Enclosure:
Safety Evaluation cc w/encls:
See next page DOCUMENT NAME: WNP90115.SE PUBLIC EPeyton OGC ACRS (4)
DBrinkman RJones DISTRIBUTION Docket File EAdensam JHannon WBateman JClifford ACubbage EHackett DChamberlain, Region IV
- BBeach, Region IV
- KPerkins, WCFO OFC DATE LA DRPW PM/P I -2
~Pey on JClifford: k 5/g 95 OFFICIAL RECORD COPY
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 205554001 Nay 8, 1995 Nr. J.
V. Parrish (Hail Drop 1023)
Vice President Nuclear Operations Washington Public Power Supply System P. 0.
Box 968
- Richland, Mashington 99352-0968
SUBJECT:
CLOSEOUT OF GENERIC LETTER 94-03, "INTERGRANULAR STRESS CORROSION CRACKING OF CORE SHROUDS" FOR THE WASHINGTON PUBLIC POWER SUPPLY SYSTEM NUCLEAR PROJECT NO.
2 (WNP-2)
(TAC NO. 890115)
Dear Hr. Parrish:
Your [[letter::GO2-94-202, Responds to GL 94-03 Re IGSCC of Core Shrouds.Exam Summary Sheets for Facility H3 & H4 Core Shroud Welds & Drawings of Facility Core Shroud Weld Details Encl|letter dated August 24, 1994]], provided the Supply System's response to Generic Letter (GL) 94-03, "Intergranular Stress Corrosion Cracking of Core Shrouds in BWRs," for the MNP-2 plant.
The NRC staff required that licensees submit, pursuant to 10 CFR 50.54(f),
a written response to address specified information in the GL.
The NRC staff has completed its review of your response to GL 94-03.
The review is documented in the the enclosed safety evaluation.
Based on its review of the information you provided, the NRC staff concludes that while cracking cannot be entirely ruled out, the WNP-2 core shroud is not likely to contain cracks which could compromise its structural integrity.
The NRC staff also concludes that the licensee's materials-based safety assessment of the WNP-2 shroud is sufficient to justify continued safe operation of the unit until the next core shroud inspection and that a detailed consequence analysis is unncessary.
In accordance with the reporting requirements of GL 94-03 and your commitment in your [[letter::GO2-94-202, Responds to GL 94-03 Re IGSCC of Core Shrouds.Exam Summary Sheets for Facility H3 & H4 Core Shroud Welds & Drawings of Facility Core Shroud Weld Details Encl|August 24, 1994, letter]], you are required to submit, no later than 90 days prior to entering the outage in which the core shroud inspection is scheduled to occur, a detailed inspection scope for a more comprehensive examination. of the MNP-2 shroud.
Docket No. 50-397
Enclosure:
Safety Evaluation cc w/encl:
See next page Sincerely, J
mes M. Clif ord, Senior Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation
Mr. J.
V. Parrish cc w/encl:
Hr. J.
H. Swailes WNP-2 Plant General Manager Washington Public Power Supply System P. 0.
Box 968
- Richland, Washington 99352-0968 G. E.
C. Doupe, Esq.
(Mail Drop 396)
Washington Public Power Supply System 3000 George Washington Way
- Richland, Washington 99352-0968 Mr. Frederick S. Adair, Chairman Energy Facility Site Evaluation Council P. 0.
Box 43172 Olympia, Washington 98504-3172 Mr. D. A. Swank (Mail Drop PE20)
WNP-2 Licensing Manager Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968 Mr. Paul R. Bemis (Mail Drop PE20)
Director, Regulatory and Industry Affairs Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower E Pavilion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Chai rman Benton County Board of Commissioners P.O.
Box 69
- Prosser, Washington 99350-0190 Mr. R.
C. Barr, Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O.
Box 69
- Richland, Washington 99352-0968 H. H. Philips, Jr.,
Esq.
Winston E Strawn 1400 L Street, N.W.
Washington, DC 20005-3502 Hr. D.E. Hershberger, Sr. Engineer Siemens Power Corporation Nuclear Division (SPC-ND) 2101 Horn Rapids Road P.O.
Box 130
- Richland, Washington 99352-0130 Hr. J.
V. Parrish (Hail Drop 1023)
Vice President Nuclear Operations 3000 George Washington Way
'Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968
l