|
|
| (2 intermediate revisions by the same user not shown) |
| Line 2: |
Line 2: |
| | number = ML080700973 | | | number = ML080700973 |
| | issue date = 03/11/2008 | | | issue date = 03/11/2008 |
| | title = Clinton, Unit 1- Request for Additional Information Related to License Amendment Request to Revise TS 3.3.1.1, Reactor Protection System (RPS) Instrumentation, Scram Discharge Volume Level Instrumentation Surveillance Requirements | | | title = Request for Additional Information Related to License Amendment Request to Revise TS 3.3.1.1, Reactor Protection System (RPS) Instrumentation, Scram Discharge Volume Level Instrumentation Surveillance Requirements |
| | author name = Sands S P | | | author name = Sands S |
| | author affiliation = NRC/NRR/ADRO/DORL/LPLIII-2 | | | author affiliation = NRC/NRR/ADRO/DORL/LPLIII-2 |
| | addressee name = Pardee C G | | | addressee name = Pardee C |
| | addressee affiliation = AmerGen Energy Co, LLC | | | addressee affiliation = AmerGen Energy Co, LLC |
| | docket = 05000461 | | | docket = 05000461 |
| | license number = NPF-062 | | | license number = NPF-062 |
| | contact person = Sands S P,NRR/DORL, 415-3154 | | | contact person = Sands S,NRR/DORL, 415-3154 |
| | case reference number = TAC MD4111 | | | case reference number = TAC MD4111 |
| | document type = Letter, Request for Additional Information (RAI) | | | document type = Letter, Request for Additional Information (RAI) |
| Line 18: |
Line 18: |
|
| |
|
| =Text= | | =Text= |
| {{#Wiki_filter:March 11, 2008 | | {{#Wiki_filter:March 11, 2008 Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 |
| | |
| Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 | |
|
| |
|
| ==SUBJECT:== | | ==SUBJECT:== |
| CLINTON POWER STATION, UNIT NO. 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3.3.1.1, "REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION," SCRAM DISCHARGE VOLUME LEVEL INSTRUMENTATION SURVEILLANCE REQUIREMENTS (TAC NO. MD4111) | | CLINTON POWER STATION, UNIT NO. 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3.3.1.1, REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION, SCRAM DISCHARGE VOLUME LEVEL INSTRUMENTATION SURVEILLANCE REQUIREMENTS (TAC NO. MD4111) |
|
| |
|
| ==Dear Mr. Pardee:== | | ==Dear Mr. Pardee:== |
|
| |
|
| By letter to the Nuclear Regulatory Commission (NRC) dated January 26, 2007, AmerGen Energy Company, LLC submitted an amendment request to Appendix A, Technical Specifications of Facility Operating License No. NPF-62 for Clinton Power Station (CPS), | | By letter to the Nuclear Regulatory Commission (NRC) dated January 26, 2007, AmerGen Energy Company, LLC submitted an amendment request to Appendix A, Technical Specifications of Facility Operating License No. NPF-62 for Clinton Power Station (CPS), |
| | | Unit No. 1. Specifically, the submittal requests changes which will revise surveillance requirement 3.3.1.1.9, to increase the surveillance requirement frequency for the scram discharge volume level float switch from every 92 days to every 24 months. |
| Unit No. 1. Specifically, the submittal requests changes which will revise surveillance requirement 3. | | The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 4, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. |
| 3.1.1.9, to increase the surveillance requirement frequency for the scram discharge volume level float switch from every 92 days to every 24 months. | | The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. |
| | | Sincerely, |
| The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 4, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. | | /RA/ |
| | | Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461 |
| The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC | |
| =s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. | |
| Sincerely, /RA/ | |
| Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation | |
| | |
| Docket No. 50-461 | |
|
| |
|
| ==Enclosure:== | | ==Enclosure:== |
|
| |
|
| Request for Additional Information | | Request for Additional Information cc w/encl: See next page |
|
| |
|
| cc w/encl: See next page March 11, 2008 Mr. Charles G. Pardee Chief Nuclear Officer and AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555
| | March 11, 2008 Mr. Charles G. Pardee Chief Nuclear Officer and AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 |
|
| |
|
| ==SUBJECT:== | | ==SUBJECT:== |
| CLINTON POWER STATION, UNIT NO. 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3.3.1.1, "REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION" SCRAM DISCHARGE VOLUME LEVEL INSTRUMENTATION SURVEILLANCE REQUIREMENTS (TAC NO. MD4111) | | CLINTON POWER STATION, UNIT NO. 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3.3.1.1, REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION SCRAM DISCHARGE VOLUME LEVEL INSTRUMENTATION SURVEILLANCE REQUIREMENTS (TAC NO. MD4111) |
|
| |
|
| ==Dear Mr. Pardee:== | | ==Dear Mr. Pardee:== |
|
| |
|
| By letter to the Nuclear Regulatory Commission (NRC) dated January 26, 2007, AmerGen Energy Company, LLC submitted an amendment request to Appendix A, Technical Specifications of Facility Operating License No. NPF-62 for Clinton Power Station (CPS), | | By letter to the Nuclear Regulatory Commission (NRC) dated January 26, 2007, AmerGen Energy Company, LLC submitted an amendment request to Appendix A, Technical Specifications of Facility Operating License No. NPF-62 for Clinton Power Station (CPS), |
| | | Unit No. 1. Specifically, the submittal requests changes which will revise surveillance requirement 3.3.1.1.9, to increase the surveillance requirement frequency for the scram discharge volume level float switch from every 92 days to every 24 months. |
| Unit No. 1. Specifically, the submittal requests changes which will revise surveillance requirement 3. | | The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 4, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. |
| 3.1.1.9, to increase the surveillance requirement frequency for the scram discharge volume level float switch from every 92 days to every 24 months. | | The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. |
| | | Sincerely, |
| The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 4, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. | | /RA/ |
| | | Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461 |
| The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC | |
| =s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. | |
| Sincerely, /RA/ Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation | |
| | |
| Docket No. 50-461 | |
|
| |
|
| ==Enclosure:== | | ==Enclosure:== |
|
| |
|
| Request for Additional Information | | Request for Additional Information DISTRIBUTION: |
| | | PUBLIC LPL3-2 R/F RidsNrrDorlLpl3-2 RidsOgcRp RidsNrrPMSSands RidsNrrDeEicb RidsNrrLAEWhitt RidsNrrDorlDpr RidsRgn3MailCenter RidsAcrsAcnw&mMailCenter ADAMS Accession Number: ML080700973 NRR-088 *concurred via e-mail OFFICE LPL3-2/PM LPL3-2/LA* LPL3-2/BC NAME SSands EWhitt RGibbs DATE 03 / 11 /08 3/11/08 3/11/08 OFFICIAL RECORD COPY |
| DISTRIBUTION: | |
| PUBLIC LPL3-2 R/F RidsNrrDorlLpl3-2 RidsOgcRp RidsNrrPMSSands RidsNrrDeEicb RidsNrrLAEWhitt RidsNrrDorlDpr RidsRgn3MailCenter RidsAcrsAcnw&mMailCenter ADAMS Accession Number: ML080700973 NRR-088 *concurred via e-mail OFFICE LPL3-2/PM LPL3-2/LA* | |
| LPL3-2/BC | |
| | |
| NAME SSands EWhitt RGibbs DATE 03 / 11 /08 3/11/08 3/11/08 OFFICIAL RECORD COPY Clinton Power Station, Unit No. 1 | |
| | |
| cc: Corporate Distribution Exelon Generation Company, LLC Via e-mail
| |
| | |
| Clinton Distribution Exelon Generation Company, LLC Via e-mail
| |
| | |
| Clinton Senior Resident Inspector U.S. Nuclear Regulatory Commission Via e-mail
| |
| | |
| Clinton Resident Inspector U.S. Nuclear Regulatory Commission Via e-mail
| |
| | |
| Illinois Emergency Management Agency Division of Disaster Assistance &
| |
| Preparedness Via e-mail
| |
| | |
| J. W. Blattner, Project Manager Sargent & Lundy Engineers Via e-mail
| |
| | |
| Chairman of DeWitt County c/o County Clerk's Office Via e-mail
| |
| | |
| Enclosure REQUEST FOR ADDITIONAL INFORMATION
| |
| | |
| CLINTON POWER STATION, UNIT NO. 1
| |
| | |
| DOCKET NO. 50-461
| |
| | |
| In reviewing the January 26, 2007 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070330254), AmerGen Energy Company, LLC submittal regarding an amendment to Appendix A, Technical Specifications for Clinton Power Station, Unit No. 1, the NRC staff has identified issues which will require resolution. Specifically, the submittal requests changes which will revise surveillance requi rements (SR) 3.3.1.1.9 for the scram discharge volume level float switch from every 92 days to every 24 months. Hence, additional information is required for the staff to complete its review.
| |
| | |
| In section 4.1, Attachment 1, of the letter dated January 26, 2007, it is stated, "These surveillances have routinely shown that the as-found condition of the instruments has not required readjustment. Surveillance test results from the past 12 quarters have been reviewed and it was determined that the as-found condition of the four float switches have been found to be within the acceptance criteria specified in the surveillance test procedures. In addition, the float switches are mechanical devices that are not subject to instrument setpoint drift and furthermore have not been subjected to failures requiring mechanical adjustment during this period."
| |
| | |
| The NRC staff needs following clarifications/information:
| |
| | |
| A. 12 quarters (48 months) is not adequate to justify extension of functional tests from quarterly to 24 months - please provide sufficient performance data to ensure 95 confidence level.
| |
| | |
| B. The float switches are subjected to calibration test SR 3.3.1.1.13 - how has it been concluded that the switches are not subject to instrument drift?
| |
| | |
| C. What is the make and the model number of the float switches and what is the industry experience with these switches? Does Title 10 of the Code of Federal Regulations (10 CFR) Part 21, "Reporting of Defects and Noncompliance" apply?
| |
|
| |
|
| D. What are the nominal trip setpoints, acceptable as-left and as-found trip setpoints for float switches?
| | Clinton Power Station, Unit No. 1 cc: |
| | Corporate Distribution Exelon Generation Company, LLC Via e-mail Clinton Distribution Exelon Generation Company, LLC Via e-mail Clinton Senior Resident Inspector U.S. Nuclear Regulatory Commission Via e-mail Clinton Resident Inspector U.S. Nuclear Regulatory Commission Via e-mail Illinois Emergency Management Agency Division of Disaster Assistance & |
| | Preparedness Via e-mail J. W. Blattner, Project Manager Sargent & Lundy Engineers Via e-mail Chairman of DeWitt County c/o County Clerks Office Via e-mail |
|
| |
|
| In the Attachment to the letter dated June 6, 2007 (ADAMS Accession No. ML071580953), the licensee quoted plant procedures 9431.22 and 9531.22. Do the plant procedures conform to clause B.4 of the NRC letter dated September 7, 2005 (ADAMS Accession No. ML052500004)?}} | | REQUEST FOR ADDITIONAL INFORMATION CLINTON POWER STATION, UNIT NO. 1 DOCKET NO. 50-461 In reviewing the January 26, 2007 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070330254), AmerGen Energy Company, LLC submittal regarding an amendment to Appendix A, Technical Specifications for Clinton Power Station, Unit No. 1, the NRC staff has identified issues which will require resolution. Specifically, the submittal requests changes which will revise surveillance requirements (SR) 3.3.1.1.9 for the scram discharge volume level float switch from every 92 days to every 24 months. Hence, additional information is required for the staff to complete its review. |
| | In section 4.1, Attachment 1, of the letter dated January 26, 2007, it is stated, These surveillances have routinely shown that the as-found condition of the instruments has not required readjustment. Surveillance test results from the past 12 quarters have been reviewed and it was determined that the as-found condition of the four float switches have been found to be within the acceptance criteria specified in the surveillance test procedures. In addition, the float switches are mechanical devices that are not subject to instrument setpoint drift and furthermore have not been subjected to failures requiring mechanical adjustment during this period. |
| | The NRC staff needs following clarifications/information: |
| | A. 12 quarters (48 months) is not adequate to justify extension of functional tests from quarterly to 24 months - please provide sufficient performance data to ensure 95 confidence level. |
| | B. The float switches are subjected to calibration test SR 3.3.1.1.13 - how has it been concluded that the switches are not subject to instrument drift? |
| | C. What is the make and the model number of the float switches and what is the industry experience with these switches? Does Title 10 of the Code of Federal Regulations (10 CFR) Part 21, Reporting of Defects and Noncompliance apply? |
| | D. What are the nominal trip setpoints, acceptable as-left and as-found trip setpoints for float switches? |
| | In the Attachment to the letter dated June 6, 2007 (ADAMS Accession No. ML071580953), the licensee quoted plant procedures 9431.22 and 9531.22. Do the plant procedures conform to clause B.4 of the NRC letter dated September 7, 2005 (ADAMS Accession No. ML052500004)? |
| | Enclosure}} |
Letter Sequence RAI |
|---|
|
|
MONTHYEARML0722102382007-08-0909 August 2007
Request for Additional Information Related to Reactor Protection System Instrumentation Scram Discharge Volume Level Instrumentation Surveillance Requirements
Project stage: RAI
RS-07-140, Additional Information Supporting the Request for Amendment to Technical Specification 3.3.1.1, Reactor Protection System (RPS) Instrumentation Scram Discharge Volume Level Instrumentation Surveillance Requirements2007-10-11011 October 2007
Additional Information Supporting the Request for Amendment to Technical Specification 3.3.1.1, Reactor Protection System (RPS) Instrumentation Scram Discharge Volume Level Instrumentation Surveillance Requirements
Project stage: Request
ML0807009732008-03-11011 March 2008
Request for Additional Information Related to License Amendment Request to Revise TS 3.3.1.1, Reactor Protection System (RPS) Instrumentation, Scram Discharge Volume Level Instrumentation Surveillance Requirements
Project stage: RAI
RS-08-054, Additional Information Supporting the Request for Amendment to Technical Specification 3.3.1.1, Reactor Protection System (RPS) Instrumentation, Scram Discharge Volume Level Instrumentation Surveillance Requirements2008-04-10010 April 2008
Additional Information Supporting the Request for Amendment to Technical Specification 3.3.1.1, Reactor Protection System (RPS) Instrumentation, Scram Discharge Volume Level Instrumentation Surveillance Requirements
Project stage: Request
ML0819601482008-06-30030 June 2008
Tech Spec Page for Amendment 179 Regarding TS Changes Related to Surveillance Frequency for Scram Discharge Volume Water Level Float Switch
Project stage: Other
ML0814102132008-06-30030 June 2008
License Amendment, Issuance of Amendment TS Changes Related to Surveillance Frequency for Scram Discharge Volume Water Level Float Switch
Project stage: Approval
2008-03-11
[Table View] |
|
|---|
Category:Letter
MONTHYEARIR 05000461/20240032024-11-0505 November 2024
Integrated Inspection Report 05000461/2024003
ML24285A1452024-10-24024 October 2024
Ltr. to Gail Cheatham, Kickapoo Tribe of Indians of the Kickapoo Reservation in Ks Re CPS Sect 106 Consult
ML24285A1462024-10-24024 October 2024
Ltr. to Gena Kakkak, Chairwoman, Menominee Indian Tribe of Wisconsin Re CPS Section 106 Consultation
IR 05000461/20244032024-10-24024 October 2024
– Security Baseline Inspection Report 05000461/2024403
ML24285A1482024-10-24024 October 2024
Ltr. to Joseph Rupnick, Chairman, Prairie Band Potawatomi Nation Re CPS Section 106 Consultation
ML24285A1442024-10-24024 October 2024
Ltr. to Estavio Elizondo, Sr., Chairman, Kickapoo Traditional Tribe of Texas Re CPS Section 106 Consultation
IR 05000461/20244022024-10-24024 October 2024
– Security Baseline Inspection Report 05000461/2024402
ML24285A1472024-10-24024 October 2024
Ltr. to Geoffrey M. Standing Bear, Principal Chief, Osage Nation Re CPS Section 106 Consultation
ML24285A1422024-10-24024 October 2024
Ltr. to Darwin Kaskaske, Chairman, Kickapoo Tribe of Oklahoma Re CPS Section 106 Consultation
ML24283A1642024-10-23023 October 2024
Summary of the 2024 Environmental Audit Related to the Review of the License Renewal Application Environmental Report (EPID Number L-2024-LNE-0000)(Docket Number:50-461)
ML24285A1412024-10-21021 October 2024
Ltr. to Craig Harper, Chief, Peoria Tribe of Oklahoma Re CPS Section 106 Consultation
ML24285A1432024-10-21021 October 2024
Ltr. to Douglas Lankford, Chief, Miami Tribe of Oklahoma Re CPS Section 106 Consultation
RS-24-093, Response to Request for Additional Information - Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests2024-10-10010 October 2024
Response to Request for Additional Information - Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests
ML24275A2442024-10-0303 October 2024
Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief, Division of Operating Reactor Licensing
ML24215A2932024-09-27027 September 2024
Scoping Summary Letter
05000461/LER-2023-002-01, Reactor Core Isolation Cooling Inoperable Prior to Mode Change2024-09-24024 September 2024
Reactor Core Isolation Cooling Inoperable Prior to Mode Change
ML24211A2302024-09-11011 September 2024
– Request for Partial Site Release for Facility Operating License No. NPF-62
IR 05000461/20240112024-09-0909 September 2024
Commercial Grade Dedication Inspection Report 05000461/2024011
RS-24-087, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for Clinton Power Station2024-09-0909 September 2024
Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for Clinton Power Station
IR 05000461/20240052024-08-29029 August 2024
Updated Inspection Plan and Assessment Follow-Up Letter for Clinton Power Station (Report 05000461/2024005)
ML24222A3952024-08-23023 August 2024
Regulatory Audit Report to Support the Review of the Amendments to Revise Reactor Water Cleanup Valve Isolation Timing
IR 05000461/20240022024-08-0909 August 2024
Integrated Inspection Report 05000461/2024002
ML24222A6772024-08-0909 August 2024
Response to Request for Additional Information for Application to Revise Technical Specifications to Adopt TSTF-591-A, Revise Risk Informed Completion Time (RICT) Program Revision 0 and Revise 10 CFR 50.69 License Condition
ML24220A2772024-08-0707 August 2024
Request for Information for the NRC Quadrennial Comprehensive Engineering Team Inspection: Inspection Report 05000461/2025010
ML24212A2212024-08-0202 August 2024
License Renewal Regulatory Audit Regarding the Environmental Review of the License Renewal Application (EPID Number: L-2024-LNE-0000) (Docket Number: 50-461)
ML24157A3242024-07-11011 July 2024
Issuance of Amendment No. 254 Revision of Reactor Water Cleanup Isolation Valve Timing
ML24158A0772024-07-0303 July 2024
Notice of Consideration of Approval of Partial Site Release, Public Meeting, and Request for Comments (EPID L-2023-LLA-0088) - Letter
ML24163A3252024-06-28028 June 2024
Aging Management Regulatory Audit Plan
ML24163A3242024-06-28028 June 2024
LRA - Portal Letter
ML24179A3112024-06-27027 June 2024
05000461; Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information
ML24176A0272024-06-25025 June 2024
Confirmation of Initial License Examination, July 2025
RS-24-061, Constellation Energy Generation, LLC, Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations2024-06-14014 June 2024
Constellation Energy Generation, LLC, Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations
ML24079A0762024-05-23023 May 2024
Issuance of Amendments to Adopt TSTF 264
ML24290A0942024-05-21021 May 2024
Letter from Rachael Mangum (Achp) to Stephen Koenick (NRC) License Renewal Application for the Clinton Power Station Unit 1 Dewitt County, Il, Achp Project Number: 020924
ML24142A3352024-05-21021 May 2024
Quad Cities—Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes
IR 05000461/20240122024-05-20020 May 2024
Biennial Problem Identification and Resolution Inspection Report Report 05000461/2024012
RS-24-055, 2023 Corporate Regulatory Commitment Change Summary Report2024-05-17017 May 2024
2023 Corporate Regulatory Commitment Change Summary Report
RS-24-050, Additional Information Supporting Request for License Amendment to Revise Technical Specifications Related to Reactor Water Cleanup Isolation Instrumentation2024-05-0909 May 2024
Additional Information Supporting Request for License Amendment to Revise Technical Specifications Related to Reactor Water Cleanup Isolation Instrumentation
IR 05000461/20240012024-05-0707 May 2024
Integrated Inspection Report 05000461/2024001
ML24103A1032024-05-0101 May 2024
SHPO Consultation Letter for Clinton License Renewal
ML24120A3442024-04-30030 April 2024
Ltr. to Gena Kakkak, Chairman, Menominee Indian Tribe of Wisconsin; Re., CPS Section 106 Consultation
ML24120A3432024-04-30030 April 2024
Ltr. to Darwin Kaskaske, Chairman, Kickapoo Tribe of Oklahoma; Re., CPS Section 106 Consultation
RS-24-041, Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests2024-04-30030 April 2024
Alternative Request to Utilize Code Case OMN-32, Alternative Requirements for Range and Accuracy of Pressure, Flow, and Differential Pressure Instruments Used in Pump Tests
ML24103A0992024-04-30030 April 2024
Achp Scoping Letter for Clinton License Renewal
ML24120A3462024-04-30030 April 2024
Ltr. to Douglas Lankford, Chief, Miami Tribe of Oklahoma; Re., CPS Section 106 Consultation
ML24120A3452024-04-30030 April 2024
Ltr. to Lester Randell, Chairman, Kickapoo Tribe of Indians of the Kickapoo Reservation in Kansas; Re., CPS Section 106 Consultation
ML24103A1152024-04-30030 April 2024
Ltr. to Geoffrey Standing Bear, Principal Chief, the Osage Nation; Re., CPS Section 106 Consultation
ML24107B0312024-04-29029 April 2024
Notice of Intent to Prepare an Environmental Impact Statement and Conduct Scoping Process
ML24103A2042024-04-12012 April 2024
Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-591-A, Revise Risk Informed Completion Time (RICT) Program Revision 0 and Revise 10 CFR 50.69 License Condition
ML24089A2222024-04-11011 April 2024
LRA - Acceptance and Opportunity for Hearing - Letter
2024-09-09
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML24283A1662024-10-23023 October 2024
Enclosure 2 Clinton Audit Summary RCI and RAIs
ML24197A0162024-07-12012 July 2024
NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591
ML24142A3352024-05-21021 May 2024
Quad Cities—Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes
ML24222A4092024-05-0303 May 2024
NRR E-mail Capture - Request for Additional Information Regarding Reactor Water Cleanup (RWCU) Pump Rooms - L-2023-LLA-0118
ML24064A1222024-02-0606 February 2024
Biennial Problem and Identification Inspection Request for Information
ML23363A0302023-12-29029 December 2023
NRR E-mail Capture - Preliminary RAIs for Clinton Partial Site Release
ML23264A7992023-09-21021 September 2023
NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC – Fleet Request – License Amendment Request to Adopt TSTF-580, Revision 1
ML23230B1682023-08-18018 August 2023
NRR E-mail Capture - Clinton Power Station, Unit 1, Preliminary Requests for Additional Information (Rais) Related to the Amendment Request to Revise Diesel Generator Starting Air Technical Specifications
ML23202A0992023-07-24024 July 2023
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2023004
ML23110A3202023-04-21021 April 2023
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
ML22312A5362022-11-0808 November 2022
Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000461/2023401
ML22255A1402022-09-12012 September 2022
Information Request to Support Upcoming Problem Identification and Resolution (Pi&R) Inspection at Clinton Power Station
ML22173A0382022-06-21021 June 2022
NRR E-mail Capture - Request for Additional Information (RAI) Regarding Clinton License Amendment Request for Secondary Containment Design Basis (L-2022-LLA-0055)
ML22041B5362022-02-10010 February 2022
NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541
ML22020A0642022-01-13013 January 2022
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles
ML21256A1902021-09-10010 September 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21225A0392021-08-13013 August 2021
NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Request to Revise Degraded Voltage Instrumentation Setpoints
ML21204A0152021-07-23023 July 2021
Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2021004
ML21190A0192021-07-0808 July 2021
NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T
ML21144A2132021-05-24024 May 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21117A0342021-05-0505 May 2021
Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893
ML21071A1882021-03-12012 March 2021
Information Request to Support Upcoming Problem Identification and Resolution Inspection at Clinton Power Station
ML21062A0652021-03-0101 March 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting
ML21057A1012021-02-26026 February 2021
NRR E-mail Capture - Clarification of Second Round RAI - Clinton TSTF-505 License Amendment Request
ML21049A2572021-02-18018 February 2021
Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237)
ML21057A1002021-02-17017 February 2021
NRR E-mail Capture - Second Round RAI - Clinton TSTF-505 License Amendment Request
ML21026A0582021-01-25025 January 2021
Notification of NRC Supplemental Inspection (95001) and Request for Information
ML20315A0642020-11-0909 November 2020
Notification of NRC Design Bases Assurance Inspection (Programs) and Initial Request for Information: Inspection Report 05000461/2021010
ML20307A6592020-10-27027 October 2020
NRR E-mail Capture - Request for Additional Information Regarding TSTF-505 and 50.69 Applications
ML20153A7042020-06-0101 June 2020
NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26
ML20135H1972020-05-14014 May 2020
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Extend Safety Relief Valve Test Interval
ML20128J8642020-05-0707 May 2020
NRR E-mail Capture - Preliminary RAIs for Clinton Load Tap Changer License Amendment Request
ML20105A1082020-04-14014 April 2020
NRR E-mail Capture - Request for Additional Information Regarding Clinton Relief Request I4R-01
ML20091F7892020-03-25025 March 2020
NRR E-mail Capture - Request for Additional Information Regarding Clinton Relief Request I4R-05
ML19330E1772019-11-25025 November 2019
RAI Dresden/Clinton Request for LAR to Modify TSs Following Adoption of TSTF-542
ML19275H1362019-10-0202 October 2019
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879
ML19179A0612019-07-19019 July 2019
Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879
ML18225A2882018-08-13013 August 2018
Ltr. 08/13/18 Clinton Power Station - Request for Information for an NRC Design Bases Assurance Inspection (Program): Implementation of the Environmental Qualification Program Inspection Report 05000461/2018011 (DRS-B.Jose)
ML18214A4452018-08-0202 August 2018
NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Revised Alternate Source Term
ML18193A9732018-07-12012 July 2018
NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Revised Alternate Source Term
ML18088A5662018-03-28028 March 2018
Information Request for an NRC Triennial 10 CFR 50.59 (Evaluation of Changes, Tests and Experiments) Baseline Inspection 05000461/2018010
ML17285B1962017-10-27027 October 2017
Request for Additional Information Regarding Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools.
ML17276B7632017-10-0303 October 2017
NRR E-mail Capture - Clinton Power Station - Request for Additional Information Regarding License Amendment Request Related to Reactor Pressure Vessel Water Inventory Control
ML17159A6292017-06-0707 June 2017
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg)
ML17125A3212017-05-0202 May 2017
NRR E-mail Capture - Clinton Power Station, Unit 1 - Request for Additional Information Regarding the Permanent Extension of Leak Rate Testing
ML16356A0422016-12-20020 December 2016
Notification of NRC Triennial Fire Protection Baseline Inspection and Request for Information 05000461/2017008 (Dxs)
ML16130A6642016-05-11011 May 2016
Request for Additional Information Related to Incorporation of Revised Alternative Source Term (CAC No. MF7336)(RS-16-019)
ML16071A2062016-03-15015 March 2016
RAI Regarding License Amendment Request to Revise the Reactor Steam Dome Pressure in Technical Specification 2.1.1, Reactor Core Sls(Cac Nos. MF6640 & MF6644)
ML15106A9282015-04-24024 April 2015
Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, :Primary Coolant Sources Outside Containment
ML15068A4212015-04-16016 April 2015
Request for Additional Information Regarding Relief Request 13R-11
2024-07-12
[Table view] |
Text
March 11, 2008 Mr. Charles G. Pardee Chief Nuclear Officer AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
CLINTON POWER STATION, UNIT NO. 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3.3.1.1, REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION, SCRAM DISCHARGE VOLUME LEVEL INSTRUMENTATION SURVEILLANCE REQUIREMENTS (TAC NO. MD4111)
Dear Mr. Pardee:
By letter to the Nuclear Regulatory Commission (NRC) dated January 26, 2007, AmerGen Energy Company, LLC submitted an amendment request to Appendix A, Technical Specifications of Facility Operating License No. NPF-62 for Clinton Power Station (CPS),
Unit No. 1. Specifically, the submittal requests changes which will revise surveillance requirement 3.3.1.1.9, to increase the surveillance requirement frequency for the scram discharge volume level float switch from every 92 days to every 24 months.
The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 4, 2008, it was agreed that you would provide a response within 15 days from the date of this letter.
The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154.
Sincerely,
/RA/
Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461
Enclosure:
Request for Additional Information cc w/encl: See next page
March 11, 2008 Mr. Charles G. Pardee Chief Nuclear Officer and AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
CLINTON POWER STATION, UNIT NO. 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3.3.1.1, REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION SCRAM DISCHARGE VOLUME LEVEL INSTRUMENTATION SURVEILLANCE REQUIREMENTS (TAC NO. MD4111)
Dear Mr. Pardee:
By letter to the Nuclear Regulatory Commission (NRC) dated January 26, 2007, AmerGen Energy Company, LLC submitted an amendment request to Appendix A, Technical Specifications of Facility Operating License No. NPF-62 for Clinton Power Station (CPS),
Unit No. 1. Specifically, the submittal requests changes which will revise surveillance requirement 3.3.1.1.9, to increase the surveillance requirement frequency for the scram discharge volume level float switch from every 92 days to every 24 months.
The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on March 4, 2008, it was agreed that you would provide a response within 15 days from the date of this letter.
The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154.
Sincerely,
/RA/
Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461
Enclosure:
Request for Additional Information DISTRIBUTION:
PUBLIC LPL3-2 R/F RidsNrrDorlLpl3-2 RidsOgcRp RidsNrrPMSSands RidsNrrDeEicb RidsNrrLAEWhitt RidsNrrDorlDpr RidsRgn3MailCenter RidsAcrsAcnw&mMailCenter ADAMS Accession Number: ML080700973 NRR-088 *concurred via e-mail OFFICE LPL3-2/PM LPL3-2/LA* LPL3-2/BC NAME SSands EWhitt RGibbs DATE 03 / 11 /08 3/11/08 3/11/08 OFFICIAL RECORD COPY
Clinton Power Station, Unit No. 1 cc:
Corporate Distribution Exelon Generation Company, LLC Via e-mail Clinton Distribution Exelon Generation Company, LLC Via e-mail Clinton Senior Resident Inspector U.S. Nuclear Regulatory Commission Via e-mail Clinton Resident Inspector U.S. Nuclear Regulatory Commission Via e-mail Illinois Emergency Management Agency Division of Disaster Assistance &
Preparedness Via e-mail J. W. Blattner, Project Manager Sargent & Lundy Engineers Via e-mail Chairman of DeWitt County c/o County Clerks Office Via e-mail
REQUEST FOR ADDITIONAL INFORMATION CLINTON POWER STATION, UNIT NO. 1 DOCKET NO. 50-461 In reviewing the January 26, 2007 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070330254), AmerGen Energy Company, LLC submittal regarding an amendment to Appendix A, Technical Specifications for Clinton Power Station, Unit No. 1, the NRC staff has identified issues which will require resolution. Specifically, the submittal requests changes which will revise surveillance requirements (SR) 3.3.1.1.9 for the scram discharge volume level float switch from every 92 days to every 24 months. Hence, additional information is required for the staff to complete its review.
In section 4.1, Attachment 1, of the letter dated January 26, 2007, it is stated, These surveillances have routinely shown that the as-found condition of the instruments has not required readjustment. Surveillance test results from the past 12 quarters have been reviewed and it was determined that the as-found condition of the four float switches have been found to be within the acceptance criteria specified in the surveillance test procedures. In addition, the float switches are mechanical devices that are not subject to instrument setpoint drift and furthermore have not been subjected to failures requiring mechanical adjustment during this period.
The NRC staff needs following clarifications/information:
A. 12 quarters (48 months) is not adequate to justify extension of functional tests from quarterly to 24 months - please provide sufficient performance data to ensure 95 confidence level.
B. The float switches are subjected to calibration test SR 3.3.1.1.13 - how has it been concluded that the switches are not subject to instrument drift?
C. What is the make and the model number of the float switches and what is the industry experience with these switches? Does Title 10 of the Code of Federal Regulations (10 CFR) Part 21, Reporting of Defects and Noncompliance apply?
D. What are the nominal trip setpoints, acceptable as-left and as-found trip setpoints for float switches?
In the Attachment to the letter dated June 6, 2007 (ADAMS Accession No. ML071580953), the licensee quoted plant procedures 9431.22 and 9531.22. Do the plant procedures conform to clause B.4 of the NRC letter dated September 7, 2005 (ADAMS Accession No. ML052500004)?
Enclosure
