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Category:Report
MONTHYEARML24136A1352024-07-30030 July 2024 LRA - Record of Decision ML23355A2682023-12-21021 December 2023 NRC Comments - Comanche Peak LRA Supplement 3 (1) CP-202300566, (Cpnpp), Special Report 1-SR-23-001-00, Inoperable Post Accident Monitoring Instrumentation2023-12-12012 December 2023 (Cpnpp), Special Report 1-SR-23-001-00, Inoperable Post Accident Monitoring Instrumentation CP-202300401, 10CFR50.59 Evaluation Summary Report 024, 10CFR72.48 Evaluation Summary Report 009, and Commitment Material Change Evaluation Report 0182023-08-15015 August 2023 10CFR50.59 Evaluation Summary Report 024, 10CFR72.48 Evaluation Summary Report 009, and Commitment Material Change Evaluation Report 018 L-23-188, Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-08-0707 August 2023 Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments CP-202300285, Response to Request for Additional Information Regarding Review of the License Renewal Application - Set 12023-07-12012 July 2023 Response to Request for Additional Information Regarding Review of the License Renewal Application - Set 1 CP-202300263, Supplemental Information to Facilitate Acceptance of Licensee Amendment Request 23-002, Application Regarding GDC-5 Shared System Requirements2023-06-15015 June 2023 Supplemental Information to Facilitate Acceptance of Licensee Amendment Request 23-002, Application Regarding GDC-5 Shared System Requirements CP-202200419, (CPNPP) - Unit 1 Refueling Outage 22 (1RF22) Steam Generator 180 Day Report2022-11-0303 November 2022 (CPNPP) - Unit 1 Refueling Outage 22 (1RF22) Steam Generator 180 Day Report CP-202200247, (CPNPP) - 10CFR50.59 Evaluation Summary Report 023, 10CFR72.48 Evaluation Summary Report 008 and Commitment Material Change Evaluation Report 0172022-06-30030 June 2022 (CPNPP) - 10CFR50.59 Evaluation Summary Report 023, 10CFR72.48 Evaluation Summary Report 008 and Commitment Material Change Evaluation Report 017 ML22020A1792021-11-0404 November 2021 Fall 2021 Steam Generator Tube Inspections Discussion Input CP-202100127, Transmittal of Pressure and Temperature Limits Report, ERX-07-003, Revision 62021-03-16016 March 2021 Transmittal of Pressure and Temperature Limits Report, ERX-07-003, Revision 6 CP-202000462, Submittal of 10CFR50.59 Evaluation Summary Report 022, 007, and Commitment Material Change Evaluation Report 0162020-09-29029 September 2020 Submittal of 10CFR50.59 Evaluation Summary Report 022, 007, and Commitment Material Change Evaluation Report 016 ML20153A7442020-06-0404 June 2020 Review of the Fall 2018 Steam Generator Tube Inspection Report CP-201900467, (CPNPP) - Biennial Review of Procedures and Station Operations Review Committee Meetings2019-08-14014 August 2019 (CPNPP) - Biennial Review of Procedures and Station Operations Review Committee Meetings CP-201900378, Transmittal of Seventeenth Refueling Outage (2RF17) Steam Generator 180 Day Report2019-06-10010 June 2019 Transmittal of Seventeenth Refueling Outage (2RF17) Steam Generator 180 Day Report CP-201900126, Special Report 2-SR-19-001-00, Inoperable Post Accident Monitoring Instrumentation Report.2019-02-25025 February 2019 Special Report 2-SR-19-001-00, Inoperable Post Accident Monitoring Instrumentation Report. CP-201800652, Special Report 1-SR-18-001-00, Inoperable Post Accident Monitoring Instrumentation Report2018-09-12012 September 2018 Special Report 1-SR-18-001-00, Inoperable Post Accident Monitoring Instrumentation Report ML18044A0982018-02-0808 February 2018 Solid Waste Registration Number: 33306; Texas Waste Code: 37043902; Reference Number: 15749 CP-201700805, Sixteenth Refueling Outage (2RF16) Steam Generator 180 Day Report2017-10-30030 October 2017 Sixteenth Refueling Outage (2RF16) Steam Generator 180 Day Report CP-201700223, Decommissioning Funding Status Report for Financial Assurance as of 12/31/20162017-03-30030 March 2017 Decommissioning Funding Status Report for Financial Assurance as of 12/31/2016 CP-201700033, Mitigating Strategies Assessment Flood Report, NEI 12-06, Appendix G, Revision 2, G.4.1 Path2017-02-0909 February 2017 Mitigating Strategies Assessment Flood Report, NEI 12-06, Appendix G, Revision 2, G.4.1 Path CP-201600097, Westinghouse LTR-PAFM-16-2-NP, Technical Justification to Support Extended Volumetric Examination Interval for Comanche Peak Unit 1 Reactor Vessel Inlet Nozzle to Safe End Dissimilar Metal Welds.2016-02-29029 February 2016 Westinghouse LTR-PAFM-16-2-NP, Technical Justification to Support Extended Volumetric Examination Interval for Comanche Peak Unit 1 Reactor Vessel Inlet Nozzle to Safe End Dissimilar Metal Welds. CP-201600093, Transmittal of 10CFR50.59 Evaluation Summary Report 019, 10CFR72.48 Evaluation Summary Report 004, and Commitment Material Change Evaluation Report 0132016-02-24024 February 2016 Transmittal of 10CFR50.59 Evaluation Summary Report 019, 10CFR72.48 Evaluation Summary Report 004, and Commitment Material Change Evaluation Report 013 ML16014A1252016-01-22022 January 2016 Staff Assessment of Information Provided Pursuant to Title 10 of the Code of Federal Regulations Part 50 Section 50.54(f) Seismic Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force ML16047A3302016-01-20020 January 2016 NEI 12-01 Phase 2 Staffing Assessment, Revision 1 ML15062A0302015-02-25025 February 2015 Work Plan for Completing a Once Through Cooling Water Study for Total Dissolved Solids, Chlorides, and Sulfates CP-201401268, Fourteenth Refueling Outage (2RF14) Steam Generator 180 Day Report2014-10-21021 October 2014 Fourteenth Refueling Outage (2RF14) Steam Generator 180 Day Report CP-201401027, 10CFR50.59 Evaluation Summary Report 018, 10CFR72.48 Evaluation Summary Report 003 and Commitment Material Change Evaluation Report 0122014-08-27027 August 2014 10CFR50.59 Evaluation Summary Report 018, 10CFR72.48 Evaluation Summary Report 003 and Commitment Material Change Evaluation Report 012 ML14189A5432014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 ML14189A4982014-06-19019 June 2014 Stars Response to Nuclear Regulatory Commission (NRC) Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program - Vendor Information Request ML14189A5002014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 1 of 5 ML14189A5312014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 5 ML14189A5332014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5 ML14189A5372014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 1 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 1 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 CP-201400335, . Pressure and Temperature Limits Report2014-04-0808 April 2014 . Pressure and Temperature Limits Report CP-201400324, Seismic Hazard and Screening Report (CEUS Sites), Response to NRC Request for Information Pursuant to 10 CFR 50.54(0 Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2014-03-27027 March 2014 Seismic Hazard and Screening Report (CEUS Sites), Response to NRC Request for Information Pursuant to 10 CFR 50.54(0 Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident ML14036A0362014-03-0707 March 2014 Staff Assessments of the Seismic Walkdown Report Supporting Implementation of Near-Term Task Force Recommendation 2.3 Related to Fukushima Dai-Ichi Nuclear Power Plant Accident ML13225A5752013-12-19019 December 2013 Interim Staff Evaluation Relating to Overall Integrated Plan in Response to Order EA-12-049 - Mitigation Strategies ML13338A6612013-12-18018 December 2013 Mega-Tech Services, LLC, Technical Evaluation Report Regarding the Overall Integrated Plan for Comanche Peak Nuclear Power Plant, TAC Nos.: MF0860 and MF0861 ML13309A0272013-10-31031 October 2013 WCAP-17728-NP, Rev. 1, Comanche Peak Nuclear Power Plant Units 1 and 2 Spent Fuel Pool Criticality Safety Analysis CP-201301238, Sixteenth Refueling Outage (1RF16) Steam Generator 180 Day Report2013-10-15015 October 2013 Sixteenth Refueling Outage (1RF16) Steam Generator 180 Day Report ML12159A2882012-06-11011 June 2012 Review of 60-day Response to Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 9.3 of the Near Term Task Force Related to Fukushima Dai-ichi Accident ML12080A1432012-03-0606 March 2012 CPNPP Systems Annual Operator Employment Notices ML12080A1502012-03-0606 March 2012 Submittal of Stc Annual Operator Employment Notices CP-201101257, Submittal of Operator Licensing Examination Data2011-09-21021 September 2011 Submittal of Operator Licensing Examination Data 2024-07-30
[Table view] Category:Miscellaneous
MONTHYEARML24136A1352024-07-30030 July 2024 LRA - Record of Decision CP-202300566, (Cpnpp), Special Report 1-SR-23-001-00, Inoperable Post Accident Monitoring Instrumentation2023-12-12012 December 2023 (Cpnpp), Special Report 1-SR-23-001-00, Inoperable Post Accident Monitoring Instrumentation CP-202300401, 10CFR50.59 Evaluation Summary Report 024, 10CFR72.48 Evaluation Summary Report 009, and Commitment Material Change Evaluation Report 0182023-08-15015 August 2023 10CFR50.59 Evaluation Summary Report 024, 10CFR72.48 Evaluation Summary Report 009, and Commitment Material Change Evaluation Report 018 L-23-188, Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-08-0707 August 2023 Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments CP-202300263, Supplemental Information to Facilitate Acceptance of Licensee Amendment Request 23-002, Application Regarding GDC-5 Shared System Requirements2023-06-15015 June 2023 Supplemental Information to Facilitate Acceptance of Licensee Amendment Request 23-002, Application Regarding GDC-5 Shared System Requirements CP-202200247, (CPNPP) - 10CFR50.59 Evaluation Summary Report 023, 10CFR72.48 Evaluation Summary Report 008 and Commitment Material Change Evaluation Report 0172022-06-30030 June 2022 (CPNPP) - 10CFR50.59 Evaluation Summary Report 023, 10CFR72.48 Evaluation Summary Report 008 and Commitment Material Change Evaluation Report 017 ML22020A1792021-11-0404 November 2021 Fall 2021 Steam Generator Tube Inspections Discussion Input CP-202000462, Submittal of 10CFR50.59 Evaluation Summary Report 022, 007, and Commitment Material Change Evaluation Report 0162020-09-29029 September 2020 Submittal of 10CFR50.59 Evaluation Summary Report 022, 007, and Commitment Material Change Evaluation Report 016 ML20153A7442020-06-0404 June 2020 Review of the Fall 2018 Steam Generator Tube Inspection Report CP-201700033, Mitigating Strategies Assessment Flood Report, NEI 12-06, Appendix G, Revision 2, G.4.1 Path2017-02-0909 February 2017 Mitigating Strategies Assessment Flood Report, NEI 12-06, Appendix G, Revision 2, G.4.1 Path CP-201600093, Transmittal of 10CFR50.59 Evaluation Summary Report 019, 10CFR72.48 Evaluation Summary Report 004, and Commitment Material Change Evaluation Report 0132016-02-24024 February 2016 Transmittal of 10CFR50.59 Evaluation Summary Report 019, 10CFR72.48 Evaluation Summary Report 004, and Commitment Material Change Evaluation Report 013 ML16014A1252016-01-22022 January 2016 Staff Assessment of Information Provided Pursuant to Title 10 of the Code of Federal Regulations Part 50 Section 50.54(f) Seismic Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force ML15062A0302015-02-25025 February 2015 Work Plan for Completing a Once Through Cooling Water Study for Total Dissolved Solids, Chlorides, and Sulfates CP-201401268, Fourteenth Refueling Outage (2RF14) Steam Generator 180 Day Report2014-10-21021 October 2014 Fourteenth Refueling Outage (2RF14) Steam Generator 180 Day Report CP-201401027, 10CFR50.59 Evaluation Summary Report 018, 10CFR72.48 Evaluation Summary Report 003 and Commitment Material Change Evaluation Report 0122014-08-27027 August 2014 10CFR50.59 Evaluation Summary Report 018, 10CFR72.48 Evaluation Summary Report 003 and Commitment Material Change Evaluation Report 012 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 ML14189A5432014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 ML14189A5372014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5 ML14189A5332014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5 ML14189A5312014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 5 ML14189A5002014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 1 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 RIS 2014-07, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 1 of 52014-06-19019 June 2014 Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 1 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 2 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 3 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 4 of 5, Regulatory Issue Summary (RIS) 2014-07, Enhancements to the Vendor Inspection Program- Vendor Information Request. Part 5 of 5 CP-201400324, Seismic Hazard and Screening Report (CEUS Sites), Response to NRC Request for Information Pursuant to 10 CFR 50.54(0 Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2014-03-27027 March 2014 Seismic Hazard and Screening Report (CEUS Sites), Response to NRC Request for Information Pursuant to 10 CFR 50.54(0 Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident ML14036A0362014-03-0707 March 2014 Staff Assessments of the Seismic Walkdown Report Supporting Implementation of Near-Term Task Force Recommendation 2.3 Related to Fukushima Dai-Ichi Nuclear Power Plant Accident CP-201301238, Sixteenth Refueling Outage (1RF16) Steam Generator 180 Day Report2013-10-15015 October 2013 Sixteenth Refueling Outage (1RF16) Steam Generator 180 Day Report ML12159A2882012-06-11011 June 2012 Review of 60-day Response to Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 9.3 of the Near Term Task Force Related to Fukushima Dai-ichi Accident ML12080A1432012-03-0606 March 2012 CPNPP Systems Annual Operator Employment Notices ML12080A1502012-03-0606 March 2012 Submittal of Stc Annual Operator Employment Notices CP-201101257, Submittal of Operator Licensing Examination Data2011-09-21021 September 2011 Submittal of Operator Licensing Examination Data CP-201101169, CFR50.59 Evaluation Summary Report 016, 10CFR72.48 Evaluation Summary Report 001, and Commitment Material Change Evaluation Report 0102011-08-22022 August 2011 CFR50.59 Evaluation Summary Report 016, 10CFR72.48 Evaluation Summary Report 001, and Commitment Material Change Evaluation Report 010 ML1034206512010-09-17017 September 2010 FEMA, Comanche Peak Nuclear Power Plant - After Action Report/Improvement Plan, Drill Date August 18, 2010, Radiological Emergency Preparedness (REP) Program CPSES-201001000, Operator Licensing Examination Data, Form 5362010-07-28028 July 2010 Operator Licensing Examination Data, Form 536 ML1000700042009-12-0303 December 2009 After Action Report/Improvement Plan, Drill Date - December 03, 2009 CP-200901404, Core Operating Limits2009-11-0202 November 2009 Core Operating Limits CP-200900474, Property Damage Insurance, Summary Report2009-03-26026 March 2009 Property Damage Insurance, Summary Report CP-200900127, Guarantees of Payment of Deferred Premiums2009-01-19019 January 2009 Guarantees of Payment of Deferred Premiums CP-200900010, Core Flux Maps Data, Cycle 112009-01-0707 January 2009 Core Flux Maps Data, Cycle 11 CP-200800805, Report of Unusual or Important Environmental Event, Operating License, Appendix B, Environmental Protection Plan (Non Radiological) - Mortality of Avian Species2008-06-0404 June 2008 Report of Unusual or Important Environmental Event, Operating License, Appendix B, Environmental Protection Plan (Non Radiological) - Mortality of Avian Species CP-200800612, Commanche Peak, Units 1 & 2 - Transmittal of Revised Pressure and Temperature Limits Report2008-04-24024 April 2008 Commanche Peak, Units 1 & 2 - Transmittal of Revised Pressure and Temperature Limits Report CP-200800609, Pressurizer Weld Overlay 60 Day Report and Results of the Final Pdi/Ut Examination of Weld Overlays2008-04-24024 April 2008 Pressurizer Weld Overlay 60 Day Report and Results of the Final Pdi/Ut Examination of Weld Overlays CP-200800213, Response to Request for Additional Information2008-02-26026 February 2008 Response to Request for Additional Information CPSES-200700454, Transmittal of Second-Half 2006 Fitness-For-Duty Program Performance Data2007-02-28028 February 2007 Transmittal of Second-Half 2006 Fitness-For-Duty Program Performance Data CPSES-200601738, Transmittal of First-Half 2006 Fitness-For-Duty Program Performance Data2006-08-31031 August 2006 Transmittal of First-Half 2006 Fitness-For-Duty Program Performance Data CPSES-200600154, Transmittal of Unit 2 Inservice Inspection Program Plan, Revision 22006-08-0202 August 2006 Transmittal of Unit 2 Inservice Inspection Program Plan, Revision 2 ML0620500122006-07-17017 July 2006 Attachment 1 to TXX-0612 Response to Requests for Additional Information for the Replacement Steam Generator Supplement to Txu Power'S Large and Small Break Loss of Coolant Accident Analysis Methodologies, Pages 1 Through 74 ML0702303962006-04-10010 April 2006 Report 06-0413 Chart 250-200 ML0702303952006-04-0606 April 2006 Report 06-0413 Chart 120-307 2024-07-30
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Work Plan for Completing a Once Through Cooling Water Study for Total Dissolved Solids, Chlorides, and Sulfates Luminant Comanche Peak Nuclear Power Plant Segment 1229 of the Brazos River Basin Somervell County, Texas Prepared for Luminant Generation Company LLC TPDES Permit No. WQ0001854000 Dallas, Texas February 2015 CH2MHILL.
Prepared by 12750 Merit Drive Suite 1100 Dallas, TX 75251
Acronym s and Abbreviations ................................................................................................................................ ii S Introduction ............................................................................................................................................ 1-1 1.1 Background ......................................................................................................................................... 1-1 1.2 Project O bjectives .............................................................................................................................. 1-1 1.3 Project Scope ...................................................................................................................................... 1-2 1.4 Project Team ...................................................................................................................................... 1-2 2 Site D escription and Regulatory Status .................................................................................................. 2-1 2.1 Site D escription .................................................................................................................................. 2-1 2.2 Regulatory Status ............................................................................................................................... 2-1 3 Investigation Procedures ........................................................................................................................ 3-1 3.1 Sam pling Strategy ............................................................................................................................... 3-1 3.2 D eterm ination of Sam pling Locations ........................................................................................... 3-1 3.2.1 Proposed Sam pling ............................................................................................................. 3-1 3.2.2 Proposed Sam pling Schedule ............................................................................................ 3-1 4 Sam pling Conditions .............................................................................................................................. 4-1 4.1 Am bient and Background Conditions ............................................................................................ 4-1 4.2 O perating Conditions ........................................................................................................................ 4-1 4.3 Sam pling Points and Log Sheets ..................................................................................................... 4-1 5 D ata Analysis .......................................................................................................................................... 5-1 5.1 Statistical Analyses ............................................................................................................................. 5-1 5.1.1 Statistical Approach / D ata Collection ........................................................................... 5-1 5.1.2 Statistical Test Methods ..................................................................................................... 5-1 Tables 3.1 Sam pling Schedule ...................................................................................................................................................................... 3-1 4.1 Am bient / Background Conditions Log Sheet ...................................................................................................................... 4-2 4.2 O perating Conditions Log Sheet .............................................................................................................................................. 4-2 Figures 1.1 Location M ap ............................................................................................................................................................................... 1-2 2 .1 F acility M ap .................................................................................................................................................................................. 2 -2 WTOZ21O151O1QOFW
°C degrees Celsius CH2M HILL CH2M HILL Engineers, Inc.
DHL DHL Analytical Services, Inc.
EPA U.S. Environmental Protection Agency Luminant Luminant Generation Company LLC mg/i, milligrams per liter MGD million gallons per day ml, Milliliter NPP Nuclear Power Plant OTCW once-through cooling water TAC Texas Administrative Code TCEQ Texas Commission on Environmental Quality TDS Total Dissolved Solids TPDES Texas Pollutant Discharge Elimination System VWrr21015102 DFW
1.1 Background Luminant Generation Company LLC (Luminant) has contracted CH2M HILL Engineers, Inc.
(CH2M HILL) to provide consulting services for completing a once-through cooling water study at the Comanche Peak Nuclear Power Plant (NPP). Chemical analysis will be conducted by an independent laboratory. This Once-Through Cooling Water Study Plan (Study Plan) was prepared for use during investigation of Total Dissolved Solids (TDS), Chlorides, and Sulfates concentrations of the cooling water at the facility. This Study Plan specifies sampling points, procedures, data collection, and quality assurance methods that will be used during sampling activities to assure quality data are obtained.
The Comanche Peak NPP is located in Somervell County in north central Texas approximately 4.5 miles northwest of the City of Glen Rose, Texas. The location of the Comanche Peak NPP is shown on Figure 1.1.
The circulating water streams that are the focus of this study are obtained from Squaw Creek Reservoir, which is adjacent to the power plant.
1.2 Project Objectives Texas Administrative Code 30 TAC 307.8(d) specifies that water quality-based effluent limits will not be required when a discharge of once-through cooling water (OTCV) does not "measurably alter" the intake concentration. However, to establish whether or not a discharge of OTCW is measurably altered, Procedures to Implement the Texas Surface WaterQua/io,Standardsl requires the statistical analysis of paired samples to determine if there is a significant difference between the intake and discharge concentrations at the 95%
confidence level.
The purpose of this study is to determine if there is a statistically significant difference between the TDS, Chloride, and Sulfate concentrations in the circulating water intake and the effluent that would require water quality-based effluent limits. This Study Plan will focus on methods and procedures that allow accurate quantification of the dissolved minerals concentrations in the cooling water before and after passing through the power plant. It will specify the number, type, and locations of samples, along with details of the proper sampling techniques and analytical methods. This document will be used by field and laboratory personnel as a guideline for conducting the sampling and analysis.
1 Procedures to Implement the Texas Surface Water Quality Standards (RG-194, June 2010).
WTOZ1015101ZDFW 1-1
INTR~ODUCTION FIGURE 1.1 Location Map 1.3 Project Scope The tasks required to complete the study are as follows:
- Analyze the water samples for TDS, Chlorides, and Sulfates
- Evaluate the results of the sampling data using statistical analysis The methods that will be used to complete these tasks are described in the following sections of this Study Plan.
1.4 Project Team The project team consists of Luminant, DHL Analytical Services, Inc. (DHL), and CH2M HILL. Luminant will fund the project, provide input on the study, and collect the samples; DHL will provide the sample kits and perform the analysis; and CH2M HILL will develop the Study Plan, evaluate the data, complete the statistical analysis, and develop the final report.
WTOZJOIS51012 DFW
2.1 Site Description The Comanche Peak NPP and Squaw Creek Reservoir are located in Somervell County in north central Texas. The power plant consists of two separate generating units, one with a rated capacity of 1084 megawatts and one with a rated capacity of ll21megawatts that operates continuously.
Squaw Creek Reservoir was constructed as a cooling water reservoir to service the power plant. The surface area of the reservoir is approximately 3,275 acres with an average depth of approximately 46 feet. The reservoir discharges occasionally at the southeast end to Squaw Creek thence to the Paluxy River.
The circulating water pumps provide high volumes of cooling water to a large condenser located on each generating unit. Flows from the circulating water system are permitted at 3,168 MGD. Cooling water is pumped from the intake structure located on the north side of the facility, provides cooling for the power plant main condensers, and is discharged back into Squaw Creek Reservoir through the discharge structure located at Outfall 001 on the south side of the facility. Figure 2.1 shows the facility, Squaw Creek Reservoir the cooling water intake, the discharge structure, Outfall 001, and the proposed sampling locations.
2.2 Regulatory Status TPDES Permit No. WQ0001854000 authorizes discharges of wastewater from the Comanche Peak NPP.
The current permit was issued by the Texas Commission on Environmental Quality (TCEQ) on June 26, 2012. The permit authorizes discharge of OTCW, auxiliary cooling water, and previously monitored effluents at Outfall 001.
WTOZ1015 1012 OFVV2 2-1
SITE DESCRIPTION AND REGULATORY STATUS FIGURE 2.1 Facility Map Intake Sample Point
/
Discharge Sample Point (Outfall 001)
WT0210151012DFWJ2- 2-2
3.1 Sampling Strategy The sampling strategy is to collect the necessary water samples from the cooling water intake and discharge using proper equipment and procedures to establish the TDS, Chlorides, and Sulfate concentrations of these streams. Samples will be representative of normal operating conditions at the power plant.
3.2 Determination of Sampling Locations Sampling locations as shown on Figure 2.1 were chosen based on a review of physical features at the Comanche NPP.
3.2.1 Proposed Sampling The following samples are proposed for the study:
" At the surface of the reservoir at the circulating water intake structures. At least four depth composites will be collected at the intake to compare to surface samples. Surface sample results will be used in the statistical analysis.
- At Outfall 001 at the discharge structure to Squaw Creek Reservoir.
Analysis will be performed using EPA approved methods as found in 40 CFR Part 136. Specifically, Standard Method 2540C will be used for TDS with a reporting limit of 50 mg/L, and EPA Method 300 will be used for Chloride and Sulfate analysis with reporting limits of 100 mg/L and 30 mg/L, respectively.
3.2.2 Proposed Sampling Schedule Grab samples will be collected every 10 days for at least ten sample events. Each paired sample will be obtained within a one hour period. The plan is to collect the samples ten days apart unless there is a significant rainfall event in the area. This will provide 10 paired samples, which is the minimum specified in Proceduresto Implement the Texas Surface WaterQua/ity Standards.TDS, Chlorides, and Sulfates concentrations will be measured for the indicated sample points.
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Prior to beginning each sampling round, background data should be collected. This data will include ambient weather conditions, reservoir conditions, and operating conditions of the power plant. This data should be recorded on the appropriate log sheet.
4.1 Ambient and Background Conditions Weather conditions need to be recorded during the sampling activities. For example, actual daily rainfall amounts will be documented. Sampling should be suspended during certain conditions, such as thunderstorms and heavy winds.
Field measurements of pH, temperature, and conductivity should be taken at the time of sample collection.
During the course of the sampling effort, ambient and background conditions data will be recorded on the Ambient/Background Conditions Log Sheet as shown in Table 4.1.
4.2 Operating Conditions Operating conditions to document include items such as generating capacity, and circulating water flow (if available). Operating condition data will be recorded on the Operating Conditions Log Sheet as shown in Table 4.2.
4.3 Sampling Points and Log Sheets The sampling log sheets will include the following information:
" Sample Point ID #
" Any problems encountered during sampling
" Ambient (weather) conditions
- Circulating water temperature (inlet and outlet)
- Specific conductance (Conductivity)
" pH
- Unit Loads WT0210151012DFW 4-1
SAMPLING CONDITIONS TABLE 4.1 Ambient I Rao TABLE 4.2 Operating Conditions Log Sheet 3odne ultUntLa ntLa 4ieTm ' WM Dat 6
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5.1 Statistical Analyses The TCEQ requirement for water quality-based effluent limits of pollutants discharged into OTCW is applicable unless there is "no measurable increase" in the pollutant concentration of the effluent as compared to the intake water. The term "no measurable increase" is statistically defined; therefore, it must be demonstrated by statistical analysis of the sampling data that there is not a statistically significant difference at the 95% confidence level between the concentrations of TDS, Chlorides, and Sulfates in the intake and effluent. Only then can the condition for exclusion of OTC\W from water quality-based permit limits be satisfied.
5.1.1 Statistical Approach I Data Collection A statistical analysis of the data will be done to determine if there is "no measurable increase" in the TDS, Chloride, and Sulfate concentrations across the OTCW system of the Comanche Peak NPP.
- Ten paired samples will be collected which meets the minimum number of paired samples of 10 as specified by TCEQ.
- Paired samples shall be collected no more than one hour apart.
- Paired data (intake and effluent sample concentrations) of TDS, Chlorides, and Sulfates will be used to conduct the statistical analysis.
5.1.2 Statistical Test Methods The lognormal distribution is usually chosen for environmental data as described in the EPA Technical Support 2
Documentfor WaterQuality Based Toxics Control.
The two-tailed Student's t-test will be done on the log mean and log standard deviation of each data set at the 95
% confidence level to check for significant differences between the effluent data and the intake water data.
If the results show the calculated t-statistic (t-Stat) is less than the critical t-statistic (t-Critical two-tail), then there is no significant difference between the concentrations of TDS, Chlorides, and Sulfates in the intake and effluent. However, if the t-Stat is greater than the t-Critical two-tail then there is a statistically significant difference between the intake and the effluent stream concentrations.
Data outliers for each data set will be evaluated using statistical test methods described by the EPA (EPA, 1992). In this method a calculated test statistic is compared to a critical value. The datum is an outlier if the calculated test statistic is greater than the critical value. Any data that are legitimate statistical outliers will be excluded from the data set.
2 Technical Support Document for Water Qualtry Based Toxics Control (FP.\ 505-2-90,-001, March 1991).
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