Letter Sequence Other |
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MONTHYEARML0709303132007-03-14014 March 2007
GE-NE-0000-0061-6306-R4-NP, Pilgrim Nuclear Power Station, Shroud Repair Replacement Upper Support Assembly-Stress Analysis Report.
Project stage: Request
ML0708701342007-03-21021 March 2007
GE-NE-000-0064-9392-R2-NP, Pilgrim Unit 1, IGSCC Assessment of Shroud Repair X-750 Component Other than the Replacement Upper Support Assembly and Tie Rod Nut.
Project stage: Request
ML0708701322007-03-22022 March 2007
Request for Authorization Under the Provision of 10 CFR 50.55a(a)(3)(i) for Modification of the Core Shroud Stabilizer Assemblies
Project stage: Request
ML0710802222007-04-10010 April 2007
Repair of the Core Shroud Stabilizer Assemblies - Torsion Arm Clamp Stress Evaluation Report
Project stage: Other
ML0711303842007-04-10010 April 2007
GE-NE-0000-0066-0380-R1-NP, Pilgrim Nuclear Power Station, Torsion Arm Clamp Stress Evaluation Report.
Project stage: Request
ML0712102502007-04-20020 April 2007
Response to NRC Request for Additional Information Related to Repair of the Core Shroud Stabilizer Assemblies
Project stage: Response to RAI
ML0712102542007-04-24024 April 2007
Revision to Entergy Response to NRC Request for Additional Information Related to Repair of the Core Shroud Stabilizer Assemblies
Project stage: Response to RAI
ML0712805192007-04-29029 April 2007
Revised Request for Authorization Under Provision of 10 CFR 50.55a(a)(3)(i) for Modification of Core Shroud Stabilizer Assemblies
Project stage: Request
ML0713100832007-05-0303 May 2007
Additional Information Concerning Revised Request for Authorization Under the Provision of 10 CFR 50.55a(a)(3)(i) for Modification of Core Shroud Stabilizer Assemblies
Project stage: Request
ML0724104462007-08-31031 August 2007
General Electric Company'S Request for Withholding Information from Public Disclosure for Pilgrim Nuclear Power Station
Project stage: Withholding Request Acceptance
ML0724104192007-08-31031 August 2007
General Electric Company'S Request for Withholding Information from Public Disclosure for Pilgrim Nuclear Power Station
Project stage: Withholding Request Acceptance
ML0724201612007-09-27027 September 2007
Relief for the Reactor Core Shroud Stabilizer Assemblies
Project stage: Other
ML0807804942008-03-0707 March 2008
Modification of Core Shroud Stabilizer Assemblies Pursuant to 10 CFR 50.55a(a)(3)(i) Implementation Plan
Project stage: Other
2007-04-24
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Category:Letter
MONTHYEARL-24-002, Late LLRW Shipment Investigation Report Pursuant to 10 CFR 20, Appendix G2024-02-0202 February 2024
Late LLRW Shipment Investigation Report Pursuant to 10 CFR 20, Appendix G
ML23342A1182024-01-0909 January 2024
Independent Spent Fuel Storage Installation Security Inspection Plan
L-23-019, Proof of Financial Protection 10 CFR 140.152023-12-18018 December 2023
Proof of Financial Protection 10 CFR 140.15
ML23334A1822023-11-30030 November 2023
Biennial Report for the Defueled Safety Analysis Report Update, Technical Specification Bases Changes, 10 CFR 50.59 Evaluation Summary, and Regulatory Commitment Change Summary November 2021 Through October 2023
L-23-012, Master Decommissioning Trust Agreement Changes for Indian Point Nuclear Generating Units 1, 2 and 3, Pilgrim Nuclear Power Station, Palisades Nuclear Plant and the Non-Qualified Trust for Big Rock Point2023-11-13013 November 2023
Master Decommissioning Trust Agreement Changes for Indian Point Nuclear Generating Units 1, 2 and 3, Pilgrim Nuclear Power Station, Palisades Nuclear Plant and the Non-Qualified Trust for Big Rock Point
ML23306A0992023-11-0202 November 2023
and Indian Point Energy Center, Notification of Changes in Schedule in Accordance with 10 CFR 50.82(a)(7)
L-23-011, 10 CFR 72.48 Biennial Change Summary Report2023-10-27027 October 2023
10 CFR 72.48 Biennial Change Summary Report
IR 05000293/20234012023-08-31031 August 2023
NRC Inspection Report No. 05000293/2023401 & 2023001 (Cover Letter Only)
IR 05000293/20230022023-08-0404 August 2023
NRC Inspection Report No. 05000293/2023002
L-23-008, Correction to Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations Holtec Decommissioning International, LLC (HDI)2023-05-23023 May 2023
Correction to Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations Holtec Decommissioning International, LLC (HDI)
ML23136A7792023-05-15015 May 2023
Annual Radiological Environmental Operating Report, January 1 Through December 31, 2022
ML23135A2152023-05-15015 May 2023
Annual Radioactive Effluent Release Report, January 1 Through December 31, 2022
L-23-004, HDI Annual Occupational Radiation Exposure Data Reports - 20222023-04-24024 April 2023
HDI Annual Occupational Radiation Exposure Data Reports - 2022
L-23-003, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations2023-03-31031 March 2023
Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations
ML23088A0382023-03-29029 March 2023
Stations 1, 2, & 3, Palisades Nuclear Plant, and Big Rock Point - Nuclear Onsite Property Damage Insurance
ML23069A2782023-03-13013 March 2023
Request for Scoping Comments Concerning the Environmental Review of Monticello Nuclear Generating Plant, Unit 1 Subsequent License Renewal Application
ML22361A1022023-02-24024 February 2023
Reactor Decommissioning Branch Project Management Changes for Some Decommissioning Facilities and Establishment of Backup Project Manager for All Decommissioning Facilities
IR 05000293/20220042023-02-15015 February 2023
NRC Inspection Report No. 05000293/2022004
ML22356A0712023-01-31031 January 2023
Issuance of Exemption for Pilgrim Nuclear Power Station ISFSI Regarding Annual Radioactive Effluent Release Report - Cover Letter
ML22347A2782022-12-21021 December 2022
Independent Spent Fuel Storage Installation Security Inspection Plan Dated December 21, 2022
L-22-042, Oyster, Pilgrim, Indian Point, Palisades and Big Rock Point - Proof of Financial Protection 10 CFR 140.152022-12-14014 December 2022
Oyster, Pilgrim, Indian Point, Palisades and Big Rock Point - Proof of Financial Protection 10 CFR 140.15
L-22-041, Supplemental Information to Enhance Exemption Request Detail for Pilgrim ISFSI Annual Radioactive Effluent Release Report Due Date Extension2022-12-0909 December 2022
Supplemental Information to Enhance Exemption Request Detail for Pilgrim ISFSI Annual Radioactive Effluent Release Report Due Date Extension
IR 05000293/20220032022-11-18018 November 2022
NRC Inspection Report No. 05000293/2022003
L-22-036, Decommissioning Trust Fund Agreement2022-11-0808 November 2022
Decommissioning Trust Fund Agreement
ML22276A1762022-10-24024 October 2022
Decommissioning International Proposed Revisions to the Quality Assurance Program Approval Forms for Radioactive Material Packages
ML22266A1922022-09-23023 September 2022
and Pilgrim Nuclear Power Station - Request to Withdraw Prior Submissions from NRC Consideration
ML22272A0352022-09-22022 September 2022
S. Lynch-Benttinen Letter Regarding U.S. Citizen Intent to Sue U.S. Fish and Wildlife and NOAA Fisheries Representing the Endangered Species (Na Right Whale) Which Will Be Adversely Affected by Holtec International Potential Actions
ML22269A4202022-09-22022 September 2022
Citizen Lawsuit
ML22241A1122022-08-29029 August 2022
Request for Exemption from 10 CFR 72.212(a)(2), (b)(2), (b)(3), (b)(4), (B)(5)(i), (b)(11), and 72.214 for Pilgrim ISFSI Annual Radioactive Effluent Release Report
IR 05000293/20220022022-08-12012 August 2022
NRC Inspection Report No. 05000293/2022002
ML22215A1772022-08-0303 August 2022
Decommissioning International (HDI) Proposed Revisions to the Quality Assurance Program Approval Forms for Radioactive Material Packages
ML22206A1512022-08-0101 August 2022
NRC Office of Investigations Case Nos. 1-2022-002 & 1-2022-006
ML22221A2592022-08-0101 August 2022
LTR-22-0217-1-NMSS - Town of Duxbury Letter Opposing the Irradiated Water Release from Pilgrim (Docket No. 05000293)
ML22193A1662022-07-28028 July 2022
LTR-22-0154-1 - Heather Govern, VP, Clean Air and Water Program, Et Al., Letter Regarding Radioactive Wastewater Disposal from the Pilgrim Nuclear Power Station (Docket No. 05000293)
ML22175A1732022-07-28028 July 2022
LTR-22-0153-1 - Response Letter to D. Turco, Cape Downwinders, from A. Roberts, NRC, Regarding Holtec-Pilgrim Plans to Dump One Million Gallons of Radioactive Waste Into Cape Cod Bay
ML22154A4882022-06-0101 June 2022
Letter from Conservation Law Foundation Regarding Irradiated Water Release from Pilgrim
ML22154A1622022-05-26026 May 2022
Letter and Email from Save Our Bay/Diane Turco Regarding Irradiated Water Release from Pilgrim
ML22136A2602022-05-16016 May 2022
Submittal of Annual Radiological Environmental Operating Report for January 1 Through December 31, 2021
ML22136A2572022-05-16016 May 2022
Submittal of Annual Radioactive Effluent Release Report for January 1 Through December 31, 2021
ML22102A0932022-05-12012 May 2022
LTR-22-0067 Response to Matthew P. Levesque, President, Barnstable Town Council Regarding Irradiated Water Release from Pilgrim
IR 05000293/20220012022-05-11011 May 2022
NRC Inspection Report No. 05000293/2022001
ML22104A0542022-04-30030 April 2022
LTR-22-0093 Response to Sheila Lynch-Benttinen, Regarding Irradiated Water Release from Pilgrim
L-22-026, Occupational Radiation Exposure Data Report - 20212022-04-29029 April 2022
Occupational Radiation Exposure Data Report - 2021
ML22152A2592022-04-25025 April 2022
Zaccagnini Letter Dated 04/25/22
ML22152A2642022-04-19019 April 2022
Flynn Letter Dated 04/19/22
ML22091A1062022-04-0101 April 2022
Nuclear Onsite Property Damage Insurance (10 CFR 50.54(w)(3))
L-22-022, and Indian Point Nuclear Generating Stations 1, 2, & 3 - Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations - Holtec.2022-03-25025 March 2022
and Indian Point Nuclear Generating Stations 1, 2, & 3 - Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations - Holtec.
ML22130A6762022-03-14014 March 2022
Decola Ltr Dtd 03/14/22 Re Potential Discharge of Radioactive Water from Pilgrim Nuclear Power Station
ML22041B0762022-03-0707 March 2022
03-07-22 - Letter to the Honorable William R. Keating, Responds to Letter Regarding Proposed Release of Irradiated Water at Pilgrim Nuclear Power Station Into Cape Cod Bay
ML22054A2962022-02-23023 February 2022
Annual ISFSI Radioactive Effluent Release Report for 2021
2024-02-02
[Table view] |
Text
Entergy Nuclear Operations, Inc.
En tegyPilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360 March 7, 2008 Stephen J. Bethay Director, Nuclear Assessment U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001
SUBJECT:
Entergy Nuclear Operations, Inc.
Pilgrim Nuclear Power Station Docket No. 50-293 License No. DPR-35 Pilgrim Modification of Core Shroud Stabilizer Assemblies Pursuant to 10 CFR 50.55a(a)(3)(i) Implementation Plan (TAC NO. MD4918)
LETTER NUMBER: 2.08.013
Dear Sir or Madam:
Entergy requested NRC authorization under the provisions of 10 CFR 50.55a(a)(3)(i) for a pre-emptive modification of the upper supports of the previously NRC approved core shroud tie rod stabilizer assemblies during refueling outage (RFO) 16 (Reference 2). Entergy implemented the proposed pre-emptive modifications to the tie rods at the 45 0 and 225 0 azimuthal locations during. RFO.1 6, and postponed modifications to the tie' rods at the 135 0 and 315.0 azimuthal locations for. RFO-17 due to difficulties encountered with the tooling.
NRC approved for-one cycle ending with RFo-17 (Reference 1)the hybrid combination of un-modified. upper support assembles at the 1350 and 315 0 azimuthal locations and modified upper support assemblies with torsional arm bolt clamps on the tie rods at the 45 0 and 225 0 azimuthal locations, as described in References 2, 3, 4, 5, 6, and 7.
This letter provides Entergy's plans to complete the modifications to the un-modified tie rods at the 135 0 and 315 0 azimuthal locations, as follows.
During RFO-17, Entergy plans to modify the upper support assemblies and install torsional arm bolt clamps on the tie rods at the 135 0 and 315 0 azimuthal locations; such that all four tie rod assemblies will be identical as described in References 2 and 7.Inspections and installation will be completed as described in References 2 through 7.
- As a contingency, in the event Entergy experiences difficulties with the tooling to loosen the upper support assemblies of either or both tie rods at the 1350 and 3150 azimuthal locations, Entergy plans to remove the tie rod assembly by cutting the rod using Electrical Discharge Machining (EDM). The applicable tie.rod assembly would then be replaced in its entirety.
The replacement.lower tie rod and lower spring assembly will be functionally, identical to the existing design, but may include some stress redu6tJrilesign enhancements..The modified tie rod assembly would include the modified upper support assemblies and torsi6nal arm bolt clamps as,described. in References 2 through.7,This tie rod configuration would be
- .ýcbnsistent with the'tie-rod configuration at the-450 and 2250 azimuthal locations, modified duringRFO-16...
Xo!
Entergy Nuclear Operations, Inc. Letter Number: 2.08.013 Pilgrim Nuclear Power Station Page 2 In either case, if Entergy succeeds in the modification of the upper support assemblies with the torsional arm bolt clamps or the installation of the contingency tie rod(s), the configuration of the four tie rod assemblies would be functionally identical to each other, as described in Reference 2 and 7. The stresses and the loads of the four tie rods would be within the design requirements discussed in References 2 to 7. Thisconf iguration as described in Reference 2 would remain in full compliance with the requirements of 10 CFR 50.55a(a)(3)(i).
This submittal along with the referenced documents contain the basis for concluding that the modifications of 450 and 2250 core shroud stabilizer assemblies made during RFO16 and the proposed modifications of the stabilizer assemblies or the installation of modified tie rods in the 135 0 and 315 0 locations provide an acceptable level of quality and safety for continuous safe operation.
Entergy will plan to submit any additional information as it becomes available either prior to or during RFO-17. Entergy believes that NRC authorization to use this proposed alternative is not required as a result of the NRC Safety Evaluation previously issued (Reference 1).
There are no new commitments contained in this letter.
If you have any questions or require additional information, please contact Mr. Joseph Lynch, Licensing Manager, at (508) 830-8403.
Sincerely, Stepctor, Neahay Director, Nuclear Safety Assurance WGL/dal
Entergy Nuclear Operations, Inc. Letter Number: 2.08.013 Pilgrim Nuclear Power Station Page 3
REFERENCES:
- 1. NRC Safety Evaluation, Pilgrim Nuclear Power Station-Relief Request for the Reactor Core Shroud Stabilizer Assemblies (TAC No. MD4918), dated September 27, 2007.
- 2. Entergy Letter No. 2.07.016, Request for Authorization Under the Provision of 10 CFR 50.55a(a)(3)(i) for Modification of the Core Shroud Stabilizer Assemblies, dated March 22, 2007.
- 3. Entergy Letter No. 2.07.035, Pilgrim Repair of the Core Shroud Stabilizer Assemblies
- Torsion Arm Clamp Stress Evaluation Report, dated April 10, 2007.
- 4. Entergy Letter No. 2.07.039, Response to NRC Request for Additional Information Related to Repair of the Core Shroud Stabilizer Assemblies, dated April 20, 2007.
- 5. Entergy Letter No. 2.07.041, Revision to Entergy Response to NRC Request for Additional Information Related to Repair of the Core Shroud Stabilizer Assemblies, dated April 24, 2007.
- 6. Entergy Letter No. 2.07.042, Revised Request for Authorization Under the Provision of 10 CFR 50.55a(a)(3)(i) for Modification of the Core Shroud Stabilizer Assemblies, dated April 29, 2007.
- 7. Entergy Letter No. 2.07.045, Additional Information Concerning Revised Request for Authorization Under the Provision of 10 CFR 50.55a(a)(3)(i) for Modification of Core Shroud Stabilizer Assemblies (TAC No. MD4918), dated May 3, 2007.
- 8. NRC Safety Evaluation Regarding Pilgrim Nuclear Power Station Core Shroud Repair (TAC No.M91305), dated May 12,1995.
cc: Mr. James S. Kim, Project Manager Plant Licensing Branch I-1 Division of Operator Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission One White Flint North 4D9A 11555 Rockville Pike Rockville, MD-20852 Regional Administrator, Region 1 U.S. Nuclear Regulator Commission 475 Allendale Road King of Prussia, PA 19406 Senior Resident Inspector Pilgrim Nuclear Power Station