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MONTHYEARML1102803632011-01-28028 January 2011 Acceptance Review Email, Amendment to Revise Technical Specifications 5.3.1 and 6.9.1.6. to Allow Fuel Assemblies with Optimized Zirlo Cladding; Associated Exemption from 10 CFR 50.46 and Appendix K (TAC ME5238-39, ME5365-66) Project stage: Acceptance Review ML1124113012011-10-0404 October 2011 FRN: General Notice. South Texas Project, Units 1 and 2 - Environmental Assessment and Finding of No Significant Impact, Proposed Exemption from 10 CFR 50.46 and 10 CFR 50 Appendix K to Allow Use of Optimized Zirlo as Fuel Rod Cladding Mate Project stage: Approval ML1124112922011-10-0404 October 2011 Letter, Environmental Assessment and Finding of No Significant Impact, Proposed Exemption from 10 CFR 50.46 and 10 CFR 50 Appendix K to Allow Use of Optimized Zirlo as Fuel Rod Cladding Material (TAC ME5365-ME5366) Project stage: Approval ML1124206162011-10-27027 October 2011 Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 to Allow the Use of Optimized Zirlo as Fuel Rod Cladding Material Project stage: Approval NRC-2011-0233, South Texas Project, Units 1 and 2 - Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 to Allow the Use of Optimized Zirlo as Fuel Rod Cladding Material (TAC Nos. ME5365 and ME5366)2011-10-27027 October 2011 South Texas Project, Units 1 and 2 - Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 to Allow the Use of Optimized Zirlo as Fuel Rod Cladding Material (TAC Nos. ME5365 and ME5366) Project stage: Approval ML1124206112011-10-28028 October 2011 Letter, Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 to Allow the Use of Optimized Zirlo as Fuel Rod Cladding Material Project stage: Approval 2011-10-27
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Category:Letter
MONTHYEARML24250A1882024-09-11011 September 2024 Request for Information for an NRC Post-Approval Site Inspection for License Renewal 05000499/LER-2024-001, Supplement to Automatic Reactor Trip and Actuation of Two of Three Emergency Diesel Generators2024-08-29029 August 2024 Supplement to Automatic Reactor Trip and Actuation of Two of Three Emergency Diesel Generators IR 05000498/20243012024-08-27027 August 2024 NRC Initial Operator Licensing Examination Approval 05000498/2024301; 05000499/2024301 IR 05000498/20240052024-08-22022 August 2024 Updated Inspection Plan for South Texas Project Electric Generating Station, Units 1 and 2 (Report 05000498/2024005 and 05000499/2024005) IR 05000498/20240022024-08-0909 August 2024 Integrated Inspection Report 05000498/2024002 and 05000499/2024002 IR 05000498/20240102024-08-0808 August 2024 Biennial Problem Identification and Resolution Inspection Report 05000498/2024010 and 05000499/2024010 NOC-AE-240040, Application for Order Consenting to Direct Transfer of Licenses2024-07-31031 July 2024 Application for Order Consenting to Direct Transfer of Licenses ML24218A1462024-07-26026 July 2024 2. EPA Comments on South Texas Project Exemption Ea/Fonsi ML24207A1782024-07-25025 July 2024 Licensed Operator Positive Fitness-For-Duty Test ML24184C0832024-07-0202 July 2024 Automatic Reactor Trip and Actuation of Two of Three Emergency Diesel Generators ML24183A1742024-07-0101 July 2024 Condition Prohibited by Technical Specifications and Potential Loss of Safety Function Due to Inoperable Low Head Safety Injection Pump ML24179A3412024-06-27027 June 2024 Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function ML24171A0112024-06-19019 June 2024 Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function IR 05000498/20244042024-06-0303 June 2024 Cyber Security Inspection Report 05000498/2024404 (Cover Letter) ML24141A0482024-05-17017 May 2024 EN 56958_1 Ametek Solidstate Controls, Inc ML24136A2872024-05-15015 May 2024 Submittal of 2024 Nrc/Fema Evaluated Exercise Scenario Manual ML24137A0882024-05-15015 May 2024 Operator Licensinq Examination Schedule Revision 3 ML24136A2842024-05-15015 May 2024 Independent Spent Fuel Storage Installation Supplement to Request for Exemption from Various Part 72 Regulations Resulting from Fuel Basket Design Control Compliance ML24130A2712024-05-0909 May 2024 Re Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function ML24128A1572024-05-0707 May 2024 Independent Spent Fuel Storage Installation Request for Exemption from Various Part 72 Regulations Resulting from Fuel Basket Design Control Compliance IR 05000498/20240012024-05-0606 May 2024 Integrated Inspection Report 05000498/2024001 & 05000499/2024001 ML24120A3762024-04-29029 April 2024 Annual Dose Report for 2023 ML24116A3032024-04-25025 April 2024 Operations Quality Assurance Plan Condition Adverse to Quality Definition Change Resulting in a Reduction in Commitment ML24116A3172024-04-25025 April 2024 Condition Prohibited by Technical Specifications Due to Inoperable Train of Essential Chilled Water ML24116A2282024-04-25025 April 2024 Annual Environmental Operating Report ML24117A1602024-04-24024 April 2024 2023 Radioactive Effluent Release Report ML24102A2452024-04-23023 April 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0046 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) ML24113A3122024-04-22022 April 2024 Cycle 24 Core Operating Limits Report ML24097A0072024-04-0606 April 2024 Relief Request Number RR-ENG-4-07 – Request for an Alternative to ASME Code Case N-729-6 for Reactor Vessel Head Penetration 75 ML24092A1902024-04-0101 April 2024 Re Two Steam Generator Power Operated Relief Valves (Porvs) Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function NOC-AE-240040, Financial Assurance for Decommissioning - 2024 Update2024-03-28028 March 2024 Financial Assurance for Decommissioning - 2024 Update ML24088A3022024-03-28028 March 2024 Financial Assurance for Decommissioning - 2024 Update ML24081A3972024-03-21021 March 2024 Response to Request for Additional Information for Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML24080A2902024-03-19019 March 2024 Nuclear Liability Certificates of Insurance ML24066A2002024-03-0606 March 2024 10 CFR 50.46 Thirty-Day Report of Significant ECCS Model Changes ML24079A1312024-03-0505 March 2024 Nuclear Insurance Protection IR 05000498/20230062024-02-28028 February 2024 Annual Assessment Letter for South Texas Project Electric Generating Station, Units 1 and 2 (Report 05000498/2023006 and 05000499/2023006) ML24060A1742024-02-28028 February 2024 Submittal of Annual Fitness for Duty Performance Report for 2023 IR 05000498/20240132024-02-27027 February 2024 Design Basis Assurance Inspection (Programs) Commercial Grade Dedication IR 05000498/2024013 and 05000499/2024013 ML24022A2252024-02-20020 February 2024 Issuance of Amendment Nos. 227 and 212 to Authorize the Revision of the Alternative Source Term Dose Calculation ML24050A0082024-02-19019 February 2024 Evidence of Financial Protection ML24045A0922024-02-16016 February 2024 Response to STP FOF Move Letter (2024) ML24017A2972024-02-15015 February 2024 Project Manager Assignment ML24039A1602024-02-0808 February 2024 Unit L & 2, Supplement to Modify the Implementation Date for License Amendment Request to Revise Alternate Source Term Dose Calculation ML24039A1112024-02-0808 February 2024 Operator Licensing Examination Schedule Revision 2 ML24038A3342024-02-0707 February 2024 Change to South Texas Project Electric Generating Station (Stepgs) Emergency Plan ML24033A3002024-02-0707 February 2024 Summary of Regulatory Audit Regarding a Proposed Alternative to ASME Code, Section XI Requirements for Containment Building Inspections ML24029A2752024-01-29029 January 2024 Request to Reschedule Evaluated Force-on-Force Drill IR 05000498/20230042024-01-29029 January 2024 – Integrated Inspection Report 05000498/2023004 and 05000499/2023004 ML24024A1162024-01-24024 January 2024 STP Unit 2 Request for Information 2024-09-11
[Table view] Category:Environmental Assessment
MONTHYEARML22293A0032022-11-30030 November 2022 Environmental Assessment and Finding of No Significant Impact Related to Alternate Disposal Procedures for Very Low-Level Radioactive Material - FRN ML22293A0022022-11-30030 November 2022 Environmental Assessment and Finding of No Significant Impact Related to Alternate Disposal Procedures for Very Low-Level Radioactive Material - Transmittal Letter ML16278A5992017-05-0202 May 2017 Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400 to MF2409) ML16278A5982017-05-0202 May 2017 Letter, Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400 to MF2409) ML16032A3872016-04-26026 April 2016 Draft Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400-MF2409) ML1124113012011-10-0404 October 2011 FRN: General Notice. South Texas Project, Units 1 and 2 - Environmental Assessment and Finding of No Significant Impact, Proposed Exemption from 10 CFR 50.46 and 10 CFR 50 Appendix K to Allow Use of Optimized Zirlo as Fuel Rod Cladding Mate ML1124112922011-10-0404 October 2011 Letter, Environmental Assessment and Finding of No Significant Impact, Proposed Exemption from 10 CFR 50.46 and 10 CFR 50 Appendix K to Allow Use of Optimized Zirlo as Fuel Rod Cladding Material (TAC ME5365-ME5366) ML1008204272010-04-19019 April 2010 Frn:General Notice. South Texas Project, Units 1 and 2, Environmental Assessment and Finding of No Significant Impact ML1008204192010-04-19019 April 2010 Letter, Environmental Assessment and Finding of No Significant Impact Request for Exemption from Certain Requirements of Fitness for Duty Rule; Managing Fatigue During Severe Weather Conditions (TAC ME2259-ME2260) ML1002507232010-02-16016 February 2010 FRN: General Notice - South Texas Project, Units 1 and 2, Environmental Assessment and Finding of No Significant Impact, Related to 10 CFR Part 73 Exemption Request ML1002507072010-02-16016 February 2010 Cover Letter, Environmental Assessment and Finding of No Significant Impact, Related to 10 CFR Part 73 Exemption Request ML0713103122007-06-0808 June 2007 Environmental Assessment and Finding of No Significant Impact Proposed Licensee Name Change ML0420404422004-07-19019 July 2004 Environmental Assessment - Optimized Ziro LTAs ML0324812862003-09-0505 September 2003 Environmental Assessment Related to Deletion of Antitrust Conditions ML0319901842003-07-18018 July 2003 Environmental Assessment, Revise Facility Operating Licenses NPF-76 and NPF-80 by Replacing Central Power and Light Company (Cpl) with Aep Texas Central Company 2022-11-30
[Table view] Category:Finding of No Significant Impact
MONTHYEARML16278A5992017-05-0202 May 2017 Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400 to MF2409) ML16278A5982017-05-0202 May 2017 Letter, Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400 to MF2409) ML16032A3872016-04-26026 April 2016 Draft Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400-MF2409) ML1124113012011-10-0404 October 2011 FRN: General Notice. South Texas Project, Units 1 and 2 - Environmental Assessment and Finding of No Significant Impact, Proposed Exemption from 10 CFR 50.46 and 10 CFR 50 Appendix K to Allow Use of Optimized Zirlo as Fuel Rod Cladding Mate ML1124112922011-10-0404 October 2011 Letter, Environmental Assessment and Finding of No Significant Impact, Proposed Exemption from 10 CFR 50.46 and 10 CFR 50 Appendix K to Allow Use of Optimized Zirlo as Fuel Rod Cladding Material (TAC ME5365-ME5366) ML1008204272010-04-19019 April 2010 Frn:General Notice. South Texas Project, Units 1 and 2, Environmental Assessment and Finding of No Significant Impact ML1008204192010-04-19019 April 2010 Letter, Environmental Assessment and Finding of No Significant Impact Request for Exemption from Certain Requirements of Fitness for Duty Rule; Managing Fatigue During Severe Weather Conditions (TAC ME2259-ME2260) ML1002507072010-02-16016 February 2010 Cover Letter, Environmental Assessment and Finding of No Significant Impact, Related to 10 CFR Part 73 Exemption Request ML0420404422004-07-19019 July 2004 Environmental Assessment - Optimized Ziro LTAs ML0319901842003-07-18018 July 2003 Environmental Assessment, Revise Facility Operating Licenses NPF-76 and NPF-80 by Replacing Central Power and Light Company (Cpl) with Aep Texas Central Company 2017-05-02
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 4, 2011 Mr. Edward D. Halpin President and Chief Executive Officerl Chief Nuclear Officer STP Nuclear Operating Company South Texas Project P. O. Box 289 VVadsworth,TX 77483
SUBJECT:
SOUTH TEXAS PROJECT, UNITS 1 AND 2 - ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT RELATED TO A PROPOSED EXEMPTION TO 10 CFR 50.46 AND APPENDIX K TO 10 CFR 50 TO PERMIT USE OF OPTIMIZED ZIRLO' FUEL DESIGN (TAC NOS. ME5365 AND ME5366)
Dear Mr. Halpin:
Enclosed is a copy of the Environmental Assessment and Finding of No Significant Impact related to your request dated December 21, 2010 (Agencywide Document Access and Management System (ADAMS) Accession No. ML103630408), for an exemption to a specific requirement concerning fuel cladding material in Title 10 of the Code of Federal Regulations (10 CFR), Section 50.46, and Appendix K to 10 CFR 50, to permit use of Optimized ZIRLO' fuel design at South Texas Project, Units 1 and 2.
The assessment is being forwarded to the Office of the Federal Register for publication.
Sincerely,
~. \ ~ lc.)::),\A.~
~nt K. Singal, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-498 and 50-499
Enclosure:
Environmental Assessment cc w/encl: Distribution via Listserv
[7590-01-P]
NUCLEAR REGULATORY COMMISSION STP NUCLEAR OPERATING COMPANY DOCKET NOS. 50-498 AND 50-499 SOUTH TEXAS PROJECT, UNITS 1 AND 2 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT
[NRC-2011-XXXX]
The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an exemption from Title 10 of the Code of Federal Regulations (10 CFR), Part 50, Section 50.46 "Acceptance criteria for emergency core cooling systems [ECCSs] for light-water nuclear power reactors," and Appendix K to 10 CFR Part 50, "ECCS EVALUATION MODELS," to allow the use of Optimized ZIRLO' fuel rod cladding in future core reload applications for South Texas Project (STP), Units 1 and 2, Facility Operating License Nos. NPF-76 and NPF-80, respectively, issued to STP Nuclear Operating Company (the licensee) for operation of STP, Units 1 and 2, located Matagorda County, Texas. Therefore, as required by 10 CFR 51.21, the NRC is issuing this environmental assessment and finding of no significant impact.
ENVIRONMENTAL ASSESSMENT Identification of the Proposed Action:
The proposed action would issue an exemption from Section 50.46 and Appendix K to 10 CFR 50, regarding fuel cladding material, and revise the Technical Specifications document, which is part of the Facility Operating Licenses for STP, Units 1 and 2, to permit use of Optimized ZIRLO' fuel. The NRC staff has previously issued an exemption to STP, Units 1 and 2, to allow use of up to eight lead test assemblies (LTAs) containing fuel rods with
-2 Optimized ZIRLO' cladding (69 FR 64113; November 3, 2004). Westinghouse has provided the NRC staff with information related to test data and models for the LTAs. LTA measured data and favorable results from visual examinations of once, twice, and thrice-burned LTAs confirm, for three cycles of operation, that the current performance models are applicable for Optimized ZIRLO' clad fuel rods. The purpose of this exemption request is to allow fuel rods with Optimized ZIRLO'ciadding to be used in future core reloads for STP, Units 1 and 2.
The proposed action is in accordance with the licensee's application dated December 21,2010, which is publicly available in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML103630408.
The Need for the Proposed Action:
The proposed action is needed because the regulation in 10 CFR 50.46 contains acceptance criteria for the ECCS for reactors that have fuel rods clad either with Zircaloy or ZIRLO. Appendix K to 10 CFR Part 50, paragraph I. A. 5, requires the Baker-Just equation to be used to predict the rates of energy release, hydrogen concentration, and cladding oxidation for the metal-water reaction. The Baker-Just equation assumed the use of a zirconium alloy different than Optimized ZIRLOTM; therefore, an exemption is required.
Environmental Impacts of the Proposed Action:
The NRC has completed its evaluation of the proposed action and concludes that the exemption does not present undue risk to public health and safety, and is consistent with common defense and security.
- 3 The proposed action will not significantly increase the probability or consequences of accidents. No changes are being made in the types of effluents that may be released offsite.
There is no significant increase in the amount of any effluent released offsite. There is no significant increase in occupational or public radiation exposure. Therefore, there are no significant radiological environmental impacts associated with the proposed action.
Based on the nature of the exemption, the proposed action does not result in changes to land use or water use, or result in changes to the quality or quantity of non-radiological effluents.
No changes to the National Pollution Discharge Elimination System permit are needed. No effects on the aquatic or terrestrial habitat in the vicinity of the plant, or to threatened, endangered, or protected species under the Endangered Species Act, or impacts to essential fish habitat covered by the Magnuson-Stevens Act are expected. There are no impacts to the air or ambient air quality. There are no impacts to historic and cultural resources. There would be no noticeable effect on socioeconomic conditions in the region.
Accordingly, the NRC concludes that there are no significant environmental impacts associated with the proposed action.
Environmental Impacts of the Alternatives to the Proposed Action:
As an alternative to the proposed action, the NRC staff considered denial of the proposed actions (i.e., the "no-action" alternative). Denial of the application would result in no change in current environmental impacts. Thus, the environmental impacts of the proposed actions and the alternative action are similar.
- 4 Alternative Use of Resources:
The action does not involve the use of any different resources than those previously considered in the Final Environmental Statement for the STP, Units 1 and 2, NUREG-1171, dated August 1986.
Agencies and Persons Consulted:
In accordance with its stated policy, on September 1, 2011, the staff consulted with the Texas State official regarding the environmental impact of the proposed action. The State official had no comments.
FINDING OF NO SIGNIFICANT IMPACT On the basis of the environmental assessment, the NRC concludes that the proposed action will not have a significant effect on the quality of the human environment. Accordingly, the NRC has determined not to prepare an environmental impact statement for the proposed action.
-5 For further details with respect to the proposed action, see the licensee's letter dated December 21, 2010. Documents may be examined, and/or copied for a fee, at the NRC's Public Document Room (PDR), located at One White Flint North, Public File Area 01 F21, 11555 Rockville Pike (first floor), Rockville, Maryland. Publicly available documents created or received at the NRC are accessible electronically through ADAMS in the NRC Library at http://www.nrc.gov/reading-rm/adams.html. Persons who do not have access to ADAMS or who encounter problems in accessing the documents located in ADAMS should contact the NRC PDR Reference staff by telephone at 1-800-397-4209 or 301-415-4737, or send an e-mail to pdr.resource@nrc.gov.
Dated at Rockville, Maryland, this 4th day of October 2011.
FOR THE NUCLEAR REGULATORY COMMISSION o ~\ W~l- 'c01~0 Balwant K. Singal, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Letter ML112411292 EA ML112411301 OFFICE NRR/DORLlLPL4/PM NRRIDLR/RERB/BC
.~-----+----------------------.~------------- ~-----j . .*.----~I NAME BSingal
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NAME AJones
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