United States Nuclear Regulatory Commission - Protecting People and the Environment

Other Correspondence

This page lists, in reverse chronological order, various correspondence between external stakeholders and the NRC concerning the pressurized-water reactor sump performance issue (GSI-191).

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Incoming Response Description
05/04/12 none NEI current status and recommended actions for closure of GSI-191
02/08/12 03/30/12 NRC asks NEI to provide dose estimates for insulation replacement
01/30/12 04/26/12 NRC correspondence with NEI regarding fibrous debris preparation procedure for ECCS recirculation sump strainer testing
12/22/11 05/02/12 NRC correspondence with NEI regarding clean plant acceptance criteria to close GSI-191
12/16/11 04/26/12 NRC correspondence with Performance Contracting, Inc., regarding the Large Flume Test Protocol
12/09/10 TBD South Texas Project letter to Commissioners stating intent to pursue a risk-informed approach to close GSI-191 and  proposal to serve as a pilot plant for others licensees.
04/07/10
04/30/10
TBD

NEI Request for Reconsideration of General Design Criterion 4 (GDC-4) Application to Generic Safety Issue (GSI) 191

04/14/10
04/26/10
TBD Union of Concern Scientists: Support for Reconsideration that General Design Criterion 4 (GDC-4) be Applied to Generic Safety Issue 191 (GSI-191), General Design Criterion 4
02/04/08 none Draft Conditions and Limitations for Use of Westinghouse Topical Report WCAP-16793-NP, Revision 0, "Evaluation of Long-Term Cooling Considering Particulate, Fibrous and Chemical Debris in the Recirculating Fluid
11/30/07 none Letter from William H. Ruland, Director Division of Safety Systems, Subject:, NRC authorized licensees two additional months to complete and submit supplemental responses to GL 2004-02 that had been due 12/31/07.
02/28/06 11/14/06
03/06/06
Nuclear Regulatory Commission Request for Additional Information to Pressurized Water Reactor Licensees Regarding Responses to Generic Letter 2004-02.
03/31/06 01/16/06 Correspondence w/ NEI, Subject: Qualified Coatings Assessments
05/06/05 none Advisory Committee on Reactor Safeguards, Subject: Comments on ANSI/ANS Standard 58.2- Design Basis for Protection of Light Water Nuclear Power Plants Against the Effects of Postulated Pipe Rupture
04/25/05 06/27/05 Characterization of Materials Associated with Integrated Chemical Effects Tests 1 and 2
10/18/04 11/26/04 Letter from Mario V. Bonaca, Advisory Committee on Reactor Safeguards, Subject: Safety Evaluation of the Industry Guidelines Related to Pressurized Water Reactor Sump Performance
07/19/04 none Letter from Mario V. Bonaca, Advisory Committee on Reactor Safeguards, Subject: Proposed draft final generic letter on Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at PWRs
07/13/04 none PWR Containment Sump Evaluation Methodology, Section 6; Revision
06/10/04 none Letter from NEI Responding to Requests for Additional Informtion on PWR Sump Performance Evaluation Methodology
05/28/04 none Letter from Nuclear Energy Institute Transmitting PWR Containment Sump Evaluation Methodology
03/18/04 none Letter from M. V. Bonaca, Advisory Committee on Reactor Safeguards, Draft Final Revision 3 to Regulatory Guide 1.82, "Water Sources for Long-term Recirculation Cooling Following a Loss-of-Coolant Accident"
11/08/03 11/19/03 Letter from Senator Hillary Rodham Clinton, regarding the petition filed by the Union of Concerned Scientists and Riverkeeper, Inc., requesting the NRC take certain actions until the containment sumps at Indian Point Units 2 & 3 are modified to resolve issues identified in NRC Generic Safety Issue (GSI) 19, "Assessment of Debris Accumulation on PWR Sump Performance." Response from Chairman Nils J. Diaz.
11/12/03 11/19/03 Letter from Representative Nita M. Lowey, responding to a letter from Rep. Lowey to Dr. William D. Travers, Executive Director for Operations, expressing support for the immediate repair of the containment sumps at Indian Point Units 2 and 3. Response from Chairman Nils J. Diaz.
10/31/03 none Letter from Nuclear Energy Institute Transmitting Draft PWR Containment Sump Evaluation Methodology
10/29/03 06/18/04
DD-04-02
Letter from Union of Concerned Scientists - Indian Point Energy Center - Supplement to Petition Pursuant to 10 CFR 2.206 - PWR Containment Sump Failure
10/15/03 none Letter from Shaw Pitman LLP Regarding Riverkeeper and Union of Concerned Scientists 10 CFR 2.206 Petition re Indian Point Units Nos. 2 and 3 PWR Containment Failure
10/10/03 none Letter from Nuclear Energy Institute Regarding Break Characteristics Model for Debris Generation Following a Design Basis Loss of Coolant Accident
09/08/03 10/22/03 Letter from Union of Concerned Scientists - Indian Point Energy Center - Petition Pursuant to 10 CFR 2.206 - PWR Containment Sump Failure
07/01/03 TBD Letter from Union of Concerned Scientists - Regulatory Prudence and Bulletin 2003-01
07/01/03 07/17/03 Letter from the Union of Concerned Scientists concerning Bulletin 2003-01
09/30/02 none Letter from Nuclear Energy Institute Transmitting Condition Assessment Guidelines: Debris Sources Inside PWR Containments, Revision 1

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Page Last Reviewed/Updated Wednesday, May 08, 2013