United States Nuclear Regulatory Commission - Protecting People and the Environment

RPV Upper Head Issues -- News and Correspondence for 2001

This page lists, in chronological order, general news and correspondence on RPV Upper Head Issues for 2001.

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Date Description
11/21/2001 Letter from J. Strosnider, NRC, Office of Nuclear Reactor Regulation (NRR), Division of Engineering to Alex Marion, Nuclear Energy Institute, regarding Flaw Evaluation Guidelines
09/28/2001

Letter from Alex Marion, NEI, to William Bateman, NRC; Resubmittal of Non-Proprietary Documents in Support of the Alloy 600 Head Penetration Stress Corrosion Cracking Issue

  • Attachment 1- PWR MRP Response to NRC Bulletin 2001-01 (MRP-48NP)
  • Attachment 2 - PWR MRP Alloy 600 Interim Response (MRP-44), Part 2
  • Attachment 3 - PWR MRP Alloy 600 Interim Response (MRP 2001-050NP)
09/07/2001 Memorandum from J. Strosnider, NRC, Office of Nuclear Reactor Regulation (NRR), Division of Engineering and M. Mayfield, NRC, Office of Research (RES), Division of Engineering Technology, to S. Collins, NRC, NRR and A. Thadani, NRC, RES, regarding Results of Independent Evaluation of Recent Reactor Vessel Head Penetration Cracking.
08/29/2001 Letter from Mr. William Bateman, NRC, to Mr. Alex Marion, NEI, regarding Request for Witholding Information from Public Disclosure of Several MRP Submittals
08/21/2001 Letter from Mr. Alex Marion, NEI, to Dr. Brian Sheron, NRC, regarding Generic Information for Use by Licensees in Response to NRC Bulletin 2001-01
08/21/2001 Letter from C. S. Welty, Jr., EPRI, to Mr. Jack Strosnider, NRC, regarding Release of EPRI MRP Information.
08/17/2001 Memorandum from M. Cunningham, NRC, Office of Research, to W. Bateman, NRC, Office of Nuclear Reactor Regulation, regarding Statistical Analysis of CRDM Sampling.
07/31/2001 Letter from Mr. Alex Marion, NEI, to Dr. Brian Sheron, NRC, regarding NRC Staff Questions on EPRI Interim Report TP-1001491, Part 2, Section 4.0, Comment No. 2
06/29/2001 Letter from Mr. Alex Marion, NEI, to Dr. Brian Sheron, NRC, regarding Response to NRC Review Comments Transmitted by Letter Dated June 22, 2001 to the Nuclear Energy Institute Relating to:"PWR Materials Reliability Program Interim Alloy 600 Safety Assessments for U.S. PWR Plants (MRP-44), Part 2: Reactor Vessel To head Penetrations," EPRI TP-1001491, Part 2, May 2001 (MRP 2001-050NP)
06/22/2001 Letter from Dr. Brian Sheron, NRC, to Mr. Alex Marion, NEI, regarding Transmittal of Staff Questions Related to Staff Review of MRP-44, Part 2 "PWR Materials Reliability Program Interim Alloy 600 Safety Assessments for U.S. PWR Plants (MRP-44), Part 2: Reactor Vessel Top Head Penetrations," TP-1001491, Part 2, Interim Report, May 2001"
06/14/2001 Letter from Dr. Brian Sheron, NRC, to Mr. Alex Marion, NEI, regarding Staff Findings Regarding "PWR Materials Reliability Project Interim Alloy 600 Safety Assessment for U.S. PWR Plants (MRP-44), Part 1: Alloy 82/182 Pipe Butt Welds"
06/06/2001 Letter from Peter Wen, NRC, to Dr. Theodore Marston, EPRI, regarding "Request for Withholding Information from Public Disclosure, EPRI Letter of May 7, 2001."
06/01/2001 Letter from Dr. Brian Sheron, NRC, to Mr. Alex Marion, NEI, regarding "NRC's Assessment of Topical Report MRP-44 - Summary of NRC/NEI Teleconference of May 30, 2001"
05/04/2001 Letter from Peter Wen, NRC, to Dr. Theodore Marston, EPRI, regarding "Request for Withholding Information from Public Disclosure, EPRI Letter of April 24, 2001."
05/18/2001 Letter from Mr. Alex Marion, NEI, to DR. Brian Sheron, NRC, regarding "PWR Materials Reliability Program Interim Alloy 600 Safety Assessments to US PWR Plants (MRP-44), Part 2: Reactor Vessel Top Head Penetrations,"EPRI Report TP-1001491, Part 2, dated May 2001
04/05/2001 Letter from Dr. Brian Sheron, NRC, to Mr. Alex Marion, NEI, regarding "MRP Meeting on CRDM Cracking Discussion Topics"
04/27/2001 Letter from Mr. Alex Marion, NEI, to Dr. Brian Sheron, NRC, regarding "PWR Reactor Piping and Head Penetrations," providing EPRI Report TP1001491 NP, Part 1, "PWR Materials Reliability Project Interim Alloy 600 Safety Assessment for U.S. PWR Plants (MRP-44), Part 1: Alloy 82/182 Pipe Butt Welds," April 2001
04/17/2001 Letter from Dr. Brian Sheron, NRC, to Mr. Alex Marion, NEI, regarding "Issues to be Addressed in a Generic Justification for Continued Operation of PWRs"

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