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MONTHYEARML0834000372008-12-0505 December 2008 E-Mail Acceptance Review for License Amendment Request Project stage: Acceptance Review ML0907506422009-09-0202 September 2009 Transmittal Letter, Environmental Assessment and Finding of No Significant Impact Related to Proposed Exemption from 10 CFR 50.54(o) and 10 CFR 50, Appendix J, Option B, Sections Iii.A and Iii.B Project stage: Approval 2008-12-05
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Category:Environmental Assessment
MONTHYEARML21054A0282021-05-14014 May 2021 Enclosure 2: Final Environmental Assessment and Finding of No Significant Impact of Nebraska Public Power District'S Initial and Updated Decommissioning Funding Plans for Cooper Nuclear Station ISFSI ML0907506422009-09-0202 September 2009 Transmittal Letter, Environmental Assessment and Finding of No Significant Impact Related to Proposed Exemption from 10 CFR 50.54(o) and 10 CFR 50, Appendix J, Option B, Sections Iii.A and Iii.B ML0721300052007-08-28028 August 2007 Letter and Federal Register Notice of Environmental Assessment and Finding of No Significant Impact Onsite Spent Fuel Storage Expansion ML0628303992006-10-11011 October 2006 Environmental Assessment, Exemption from Certain Requirements of Title 10 of the Code of Federal Regulations, as Defined in 10 CFR Part 50, Appendix J 2021-05-14
[Table view] Category:Federal Register Notice
MONTHYEARML24114A3102024-05-0303 May 2024 Monthly (28-Day) Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 14, 2024 ML24086A4312024-04-0505 April 2024 Monthly (28-day) Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: April 16, 2024 ML24067A0372024-03-20020 March 2024 Federal Register Notice - Issuance of Multiple Exemptions Regarding 10 CFR Part 73 - February 2024 ML21055A4002021-05-14014 May 2021 Enclosure 1: Environmental Assessments and Findings of No Significant Impact of Independent Spent Fuel Storage Facilities Decommissioning Funding Plans Federal Register Notice ML20271A0002020-10-13013 October 2020 FRN - Notice of Issuance of Multiple Exemptions Regarding Various Parts of 10 CFR Due to COVID-19 Impacts for September 2020 ML20243A0002020-09-23023 September 2020 FRN - Notice of Issuance of Multiple Exemptions Regarding Various Parts of 10 CFR Due to COVID-19 Impacts for August 2020 ML20035C4082020-02-18018 February 2020 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 02/25/2020 ML19238A3692019-09-0303 September 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 09/10/2019 ML19140A4562019-05-28028 May 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 06/04/2019 NRC-2019-0065, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 03/12/20192019-02-28028 February 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 03/12/2019 ML19056A5352019-02-28028 February 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 03/12/2019 NRC-2018-0133, FRN - Individual Notice of Consideration of Issuance of Amendment and Order Imposing Procedures for SUNSI Regarding Amendment Request to Revise TSs - Safety Limit Minimum Critical Power Ratio2018-06-27027 June 2018 FRN - Individual Notice of Consideration of Issuance of Amendment and Order Imposing Procedures for SUNSI Regarding Amendment Request to Revise TSs - Safety Limit Minimum Critical Power Ratio ML18157A2682018-06-27027 June 2018 FRN - Individual Notice of Consideration of Issuance of Amendment and Order Imposing Procedures for SUNSI Regarding Amendment Request to Revise TSs - Safety Limit Minimum Critical Power Ratio ML18157A2532018-06-22022 June 2018 Transmittal Letter, Individual Notice of Consideration of Issuance of Amendment and Order Imposing Procedures for SUNSI Regarding Amendment Request to Revise TSs - Safety Limit Minimum Critical Power Ratio NRC-2016-0100, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 24, 20162016-05-13013 May 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 24, 2016 ML16131A7952016-05-13013 May 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 24, 2016 NRC-2015-0240, Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Considerations and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: Novemb2015-10-23023 October 2015 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Considerations and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: November 3, ML15279A3362015-10-23023 October 2015 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Considerations and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: November 3, ML15204A2792015-07-27027 July 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 4, 2015 ML15062A3732015-04-15015 April 2015 G20110506/LTR-11-0402 and G20110492/LTR-11-0382 - 2.206 Proposed Director'S Decision, Petitioner Thomas Saporito Related to Cooper Nuclear Station and Fort Calhoun Station ML13018A2392015-04-0808 April 2015 G20110171 - Letter to Petitioner Saporito on Proposed Director'S Decision Regarding 2.206 Petition Dated: March 12, 2011 NRC-2014-0180, FRN, Withdrawal of License Amendment Request to Request to Revise Figure 4.1-1, Site and Exclusion Area Boundaries and Low Population Zone, to Reflect Current Layout2015-02-11011 February 2015 FRN, Withdrawal of License Amendment Request to Request to Revise Figure 4.1-1, Site and Exclusion Area Boundaries and Low Population Zone, to Reflect Current Layout ML15041A2052015-02-11011 February 2015 Letter, Withdrawal of License Amendment Request to Request to Revise Figure 4.1-1, Site and Exclusion Area Boundaries and Low Population Zone, to Reflect Current Layout ML15041A2252015-02-11011 February 2015 FRN, Withdrawal of License Amendment Request to Request to Revise Figure 4.1-1, Site and Exclusion Area Boundaries and Low Population Zone, to Reflect Current Layout ML14335A6482015-01-15015 January 2015 G20110262 - FRN - Paul Gunter and Kevin Kamps Letter 2.206 - Immediately Suspend the Operating License of General Electric Boiling Water Reactors Mark I Units NRC-2015-0009, G20110262 - FRN - Paul Gunter and Kevin Kamps Letter 2.206 - Immediately Suspend the Operating License of General Electric Boiling Water Reactors Mark I Units2015-01-15015 January 2015 G20110262 - FRN - Paul Gunter and Kevin Kamps Letter 2.206 - Immediately Suspend the Operating License of General Electric Boiling Water Reactors Mark I Units ML14335A6302015-01-15015 January 2015 G20110262 - Final Response to Paul Gunter and Kevin Kamps Letter 2.206 - Immediately Suspend the Operating License of General Electric Boiling Water Reactors Mark I Units ML13225A5572013-08-12012 August 2013 Rescission of Certain Security Orders Concerning Spent Nuclear Fuel in Transit ML13228A3992013-08-12012 August 2013 Letter to Holders of Independent Spent Fuel Storage Installation (ISFSI) Licenses Re Rescission of Certain Security Orders Concerning Spent Nuclear Fuel in Transit - Rin 3150-AI64 (NRC-2009-0163) EA-02-109 NRC-2013-0139, FRN, Notice of Consideration of Issuance of Amendment, Revise License Condition 2.E to Require All License Renewal Commitments Will Be Incorporated Into the Updated Safety Analysis Report2013-06-26026 June 2013 FRN, Notice of Consideration of Issuance of Amendment, Revise License Condition 2.E to Require All License Renewal Commitments Will Be Incorporated Into the Updated Safety Analysis Report ML13168A3202013-06-26026 June 2013 Letter, Notice of Consideration of Issuance of Amendment, Revise License Condition 2.E to Require All License Renewal Commitments Will Be Incorporated Into the Updated Safety Analysis Report ML13168A3242013-06-26026 June 2013 FRN, Notice of Consideration of Issuance of Amendment, Revise License Condition 2.E to Require All License Renewal Commitments Will Be Incorporated Into the Updated Safety Analysis Report NRC-2012-0067, Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Effective Immediately) - to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status2012-03-12012 March 2012 Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Effective Immediately) - to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status NRC-2012-0069, Order Modifying Licenses with Regard to Reliable Hardened Containment Vents - to All Operating Boiling Water Reactor Licensees with Mark I and Mark Ii Containments2012-03-12012 March 2012 Order Modifying Licenses with Regard to Reliable Hardened Containment Vents - to All Operating Boiling Water Reactor Licensees with Mark I and Mark Ii Containments ML12056A0432012-03-12012 March 2012 Order Modifying Licenses with Regard to Reliable Hardened Containment Vents - to All Operating Boiling Water Reactor Licensees with Mark I and Mark II Containments ML12056A0442012-03-12012 March 2012 Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Effective Immediately) - to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status ML1200300272012-01-13013 January 2012 G20110506/LTR-11-0402/EDATS: SECY-2011-0402, G20110492/LTR-11-0382/EDATS: OEDO-2011-0387 - FRN, 2.206 Acknowledgement, Petitioner Thomas Saporito Related to Cooper Nuclear Station and Fort Calhoun Station ML1020203972010-07-30030 July 2010 Notice of Availability of the Final Plant-Specific Supplement 41 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding Cooper Nuclear Station -FRN ML1009700562010-04-0707 April 2010 Federal Register Notice Regarding the ACRS Subcommittee Meeting on Plant License Renewal, May 5, 2010 NRC-2008-0617, Notice of Availability of the Draft Supplemental 41 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants, the License Renewal of Cooper Nuclear Station, Unit 1-FRN2010-02-18018 February 2010 Notice of Availability of the Draft Supplemental 41 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants, the License Renewal of Cooper Nuclear Station, Unit 1-FRN ML1003300572010-02-18018 February 2010 Notice of Availability of the Draft Supplemental 41 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants, the License Renewal of Cooper Nuclear Station, Unit 1-FRN ML0907506422009-09-0202 September 2009 Transmittal Letter, Environmental Assessment and Finding of No Significant Impact Related to Proposed Exemption from 10 CFR 50.54(o) and 10 CFR 50, Appendix J, Option B, Sections Iii.A and Iii.B ML0911306172009-04-24024 April 2009 Biweekly Notice, Applications and Amendments to Facility Operating Licenses Involving No Significant Hazards Considerations ML0833300662008-12-19019 December 2008 Determination of Acceptability and Sufficiency for Docketing and Opportunity for a Hearing Regarding the Application from Nebraska Public Power District, for Renewal of the Operating License for the Cooper Nuclear Station ML0826608922008-11-10010 November 2008 United States Nuclear Regulatory Commission Nebraska Public Power District Notice of Receipt and Availability of Application for Renewal of Cooper Nuclear Station Facility Operating License No. DPR-46 for an Additional 20-Year Period Docket ML0635407392007-01-12012 January 2007 Individual Notice of Consideration of Issuance of Amendment to Facility Operating License and Opportunity for a Hearing in Conjunction with the Expansion of Spent Fuel Pool Storage Capacity ML0616000872006-06-20020 June 2006 FRN: General Notice, Order EA-06-137, Attachment 1-A List of Licensees ML0616000762006-06-20020 June 2006 FRN: General Notice, EA-06-137 Enclosure, Order Modifying Licenses (Effective Immediately) ML0616000232006-06-20020 June 2006 FRN: General Notice, Letter a, Issuance of Order EA-06-137. Requiring Compliance with Key Radiological Protection Mitigation Strategies 2024-05-03
[Table view] Category:Finding of No Significant Impact
MONTHYEARML0907506422009-09-0202 September 2009 Transmittal Letter, Environmental Assessment and Finding of No Significant Impact Related to Proposed Exemption from 10 CFR 50.54(o) and 10 CFR 50, Appendix J, Option B, Sections Iii.A and Iii.B ML0628303992006-10-11011 October 2006 Environmental Assessment, Exemption from Certain Requirements of Title 10 of the Code of Federal Regulations, as Defined in 10 CFR Part 50, Appendix J 2009-09-02
[Table view] Category:Letter
MONTHYEARML24227A0822024-09-0303 September 2024 Summary of Regulatory Audit in Support of License Amendment Request to Modify the High Pressure Coolant Injection Low Flow Value IR 05000298/20240052024-08-22022 August 2024 Updated Inspection Plan for Cooper Nuclear Station (Report 05000298/2024005) IR 05000298/20240022024-07-25025 July 2024 Integrated Inspection Report 05000298/2024002 ML24183A1722024-07-17017 July 2024 Issuance of Amendment No. 277 to Adopt TSTF-374, Revision to TS 5.5.13 and Associated TS Bases for Diesel Fuel Oil ML24197A1462024-07-15015 July 2024 NRC Region IV Ltr to Cooper Nuclear Station Re FEMA Level 1 Finding IR 05000298/20243012024-07-12012 July 2024 NRC Examination Report 05000298/2024301 ML24134A1782024-07-0303 July 2024 Issuance of Amendment No. 276 Revision to Technical Specification 3.8.3, Diesel Fuel Oil, Lube Oil and Starting Air, to Allow for Cleaning, Inspection and Any Needed Repairs During Refuel Outage 33 ML24197A0682024-06-24024 June 2024 FEMA Ltr to Missouri State Emergency Management Agency - Level 1 Finding, 24 June 2024 ML24192A0112024-06-13013 June 2024 2024-06-Post Exam Comments IR 05000298/20244012024-06-0404 June 2024 Security Baseline Inspection Report 05000298/2024401 ML24151A1082024-05-30030 May 2024 NRC Initial Operator Licensing Examination Approval 05000298/2024301 ML24137A0942024-05-17017 May 2024 Regulatory Audit Plan in Support of License Amendment Request to Modify Allowable Value Regarding Technical Specification for High Pressure Coolant Injection Pump Discharge Low Flow IR 05000298/20240012024-05-0303 May 2024 Integrated Inspection Report 05000298/2024001 ML24129A0952024-04-25025 April 2024 Preparation and Scheduling of Operator Licensing Examinations IR 05000298/20240102024-04-24024 April 2024 Comprehensive Engineering Team Inspection Report 05000298/2024010 ML24096A1202024-04-0505 April 2024 Issuance of Amendment No. 275 Revision to Technical Specification 3.3.1.1 (Emergency Circumstances) ML24093A2282024-04-0202 April 2024 Notice of Enforcement Discretion for Cooper Nuclear Station IR 05000298/20240902024-04-0101 April 2024 – Notice of Violation, NRC Inspection Report 05000298/2024090 IR 05000298/20230062024-02-28028 February 2024 Annual Assessment Letter for Cooper Nuclear Station - Report 05000298/2023006 IR 05000298/20230042024-02-12012 February 2024 Integrated Inspection Report 05000298/2023004 ML24033A3092024-02-12012 February 2024 Summary of Regulatory Audit Regarding the Relief Request RC3-02 Regarding Drywell Head Bolting IR 05000298/20230122024-02-12012 February 2024 NRC Inspection Report 05000298/2023012 ML23334A2012024-01-0303 January 2024 Issuance of Amendment No. 274 Revision to Technical Specifications to Adopt TSTF-551, Revision 3, Revise Secondary Containment Surveillance Requirements ML23311A2082023-11-0909 November 2023 Reassignment of U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch IV ML23311A1122023-11-0909 November 2023 Project Manager Assignment IR 05000298/20230032023-11-0202 November 2023 Integrated Inspection Report 05000298/2023003 IR 05000298/20234012023-11-0101 November 2023 Cyber Security Report 05000298/2023401 Public ML23264A8052023-10-11011 October 2023 Issuance of Amendment No. 273 Revision to Technical Specifications to Adopt TSTF-580, Revision 1, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling ML23233A1882023-09-0505 September 2023 Regulatory Audit Plan in Support of Relief Request RC3-02 Regarding Drywell Head Bolting IR 05000298/20230052023-08-21021 August 2023 Updated Inspection Plan for Cooper Nuclear Station (Report 05000298/2023005)- Mid Cycle Letter IR 05000298/20230022023-08-0808 August 2023 Integrated Inspection Report 05000298/2023002 IR 05000298/20234022023-08-0303 August 2023 NRC Security Inspection Report 05000298/2023402 ML23214A2742023-08-0303 August 2023 Nuclear Station - Notification of Inspection (NRC Inspection Report 05000298/2023004) and Request for Information IR 05000298/20234202023-08-0101 August 2023 Security Baseline Inspection Report 05000298/2023420 ML23173A0862023-06-26026 June 2023 Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000298/2023401 IR 05000298/20230102023-05-17017 May 2023 Biennial Problem Identification and Resolution Inspection Report 05000298/2023010 IR 05000298/20234032023-05-0404 May 2023 Security Baseline Inspection Report 05000298/2023403 ML23129A2822023-04-20020 April 2023 Submittal of Revision 31 to Updated Safety Analysis Report ML23102A0282023-04-19019 April 2023 U.S. Nuclear Regulatory Commission Presentation at the May 8, 2023, Brownville Village Meeting IR 05000298/20230012023-04-17017 April 2023 Integrated Inspection Report 05000298/2023001 ML23060A1582023-03-0808 March 2023 Design Basis Assurance Inspection (Programs) Inspection Report 05000298/2023001 IR 05000298/20220062023-03-0101 March 2023 Annual Assessment Letter for Cooper Nuclear Station Report 05000298/2022006 ML23041A1622023-02-10010 February 2023 Licensed Operator Positive Fitness-for-Duty Test Request for Additional Information IR 05000298/20220042023-01-30030 January 2023 Integrated Inspection Report 05000298/2022004 IR 05000298/20220112022-12-23023 December 2022 License Renewal Phase 4 Inspection Report 05000298/2022011 ML22286A2072022-11-30030 November 2022 Issuance of Amendment No. 272 Revision to Technical Specifications to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements IR 05000298/20220032022-10-27027 October 2022 Integrated Inspection Report 05000298/2022003 ML22304A0052022-10-26026 October 2022 Surveillance Capsule Location (Re-insertion Into the Reactor Vessel) IR 05000298/20223022022-10-20020 October 2022 NRC Initial Operator Licensing Examination Approval 05000298/2022302 ML22276A1562022-10-0505 October 2022 Notification of Commercial Grade Dedication Inspection 05000298/2023011 and Request for Information 2024-09-03
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UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 September 2, 2009 Mr. Stewart B. Minahan Vice President-Nuclear and CNO Nebraska Public Power District 72676 648A Avenue Brownville, NE 68321 COOPER NUCLEAR STATION -ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT (TAC NO. MD9922)
Dear Mr. Minahan:
Enclosed is a copy of the Environmental Assessment and Finding of No Significant Impact related to your application for exemption dated October 13, 2008, as supplemented on April 8, May 29, June 12, and September 1, 2009. The proposed exemption from the requirements of Title 10 of the Code of Federal Regulations (10 CFR), paragraph 50.54(0) and 10 CFR Part 50, Appendix J, Option B, Sections liLA and III.B, would permit exclusion of the main steam pathway leakage contribution from the overall integrated leakage rate Type A test measurement and from the sum of the leakage rates from Type B and Type C test measurements.
The assessment is being forwarded to the Office of the Federal Register for publication.
Sincerely, Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298
Enclosure:
As stated cc w/encl: Distribution via Listserv 7590-01-P UNITED STATES NUCLEAR REGULATORY NEBRASKA PUBLIC POWER DOCKET NO. COOPER NUCLEAR ENVIRONMENTAL ASSESSMENT AND FINDING NO SIGNIFICANT The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an exemption from Title 10 of the Code of Federal Regulations (10 CFR), paragraph 50.54(0), and 10 CFR Part 50, Appendix J, Option B, Sections liLA and III.B, for Facility Operating License No. DPR-46, issued to Nebraska Public Power District (NPPD, the licensee), for operation of the Cooper Nuclear Station (CNS), located in Nemaha County, Nebraska.
Therefore, as required by 10 CFR 51.21, the NRC performed an environmental assessment.
Based on the results of the environmental assessment, the NRC is issuing a finding of no significant impact. ENVIRONMENTAL ASSESSMENT Identification of the Proposed Action: The proposed action would permit exclusion of the main steam (MS) pathway leakage contribution (1) from the overall integrated leakage rate Type A test measurement required by Appendix J, Option B, Section liLA, and (2) from the sum of the leakage rates from Type Band Type C test measurements required by Appendix J, Option B,Section III.B. The proposed action is in accordance with the licensee's application dated October 13, 2008, as supplemented by letters dated April 8, May 29, June 12, and September 1, 2009. The licensee's application included a corresponding license amendment request, which has been evaluated by the NRC staff separately from the exemption request.
-2 The Need for the Proposed Action: Paragraph 50.54(0) of 10 CFR Part 50 requires that primary reactor containments for water-cooled power reactors be subject to the requirements of Appendix J to 10 CFR Part 50. Appendix J specifies the leakage test requirements, schedules, and acceptance criteria for tests of the leak-tight integrity of the primary reactor containment, and of systems and components which penetrate the containment.
Option B, Section liLA requires that the overall integrated leak rate not exceed the allowable leakage (La) with margin, as specified in the Technical Specifications (TSs). The overall integrated leak rate, as specified in the 10 CFR Part 50, Appendix J definitions, includes the contribution from MS pathway leakage. The MS pathway includes the leakage from the four MS line penetrations plus the leakage from the MS inboard drain line. By letter dated October 30, 2006, and corresponding License Amendment No. 226, dated October 31, 2006, the NRC previously granted the licensee an exemption for the four MS line penetrations from the requirements of 10 CFR 50.54(0) and 10 CFR 50, Appendix J, Option B, Sections liLA and III.B. By letter dated October 13, 2008, the licensee has requested an exemption from Option B, Section liLA, requirements to permit exclusion of the entire MS pathway leakage (the MS line penetrations and the MS inboard drain line leakage) from the overall integrated leak rate test measurement.
Option B,Section III.B of 10 CFR Part 50, Appendix J, requires that the sum of the leakage rates of Type B and Type C local leak rate tests be less than the performance criterion (La) with margin, as specified in the TSs. The licensee's letter also requests an exemption from this requirement, to permit exclusion of the MS pathway contribution to the sum of the Type B and Type C test measurements.
The above-cited requirements of Appendix J require that MS pathway leakage measurements be grouped with the leakage measurements of other containment penetrations when containment leakage tests are performed.
These requirements are inconsistent with the
-3 design of the CNS and the analytical models used to calculate the radiological consequences of design-basis accidents.
At CNS, and similar facilities, the leakage from primary containment penetrations, under accident conditions, is collected and treated by the secondary containment system, or would bypass the secondary containment.
However, the leakage from the MS pathway is collected and treated via an Alternative Leakage Treatment (AL T) path having different mitigation characteristics.
In performing accident analyses, it is appropriate to group various leakage effluents according to the treatment they receive before being released to the environment (i.e., bypass leakage is grouped, leakage into secondary containment is grouped, and AL T leakage is grouped), with specific limits for each group defined in the TSs. The proposed exemption would permit AL T path leakage to be independently grouped with its unique leakage limits. Environmental Impacts of the Proposed Action: The NRC has completed its evaluation of the proposed action and concludes that the environmental impacts would not be significant.
The details of the staff's safety evaluation will be provided in the exemption and corresponding license amendment that will be issued as part of the letters to the licensee approving the exemption to the regulation and the license amendment.
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. With regard to potential non-radiological impacts, the proposed action does not have any foreseeable impacts to land, air, or water resources, including impacts to biota. In addition,
-there are no known socioeconomic or environmental justice impacts associated with the proposed action. Therefore, there are no significant non-radiological environmental impacts associated with the proposed action. 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 staff considered denial of the proposed action (Le., the "no-action" alternative).
Denial of the application would result in no change in current environmental impacts. The environmental impacts of the proposed action and the alternative action are similar. 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 Cooper Nuclear Station dated February 1973. Agencies and Persons Consulted:
In accordance with its stated policy, on March 30, 2009, the staff consulted with the Nebraska State official, Ms. Julia Schmitt of the Office of Radiological Health, 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 October 13, 2008, as supplemented by letters dated April 8, May 29, June 12, and September 1, 2009. 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 0'1 F21, 11555 Rockville Pike (first floor), Rockville, Maryland.
Publicly available records will be accessible electronically from the Agencywide Documents Access and Management System (ADAMS) Public Electronic Reading Room on the Internet at the NRC Web site, 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 staft by telephone at 800-397-4209 or 301-415-4737, or send an e-mail to pdr.resource@nrc.gov.
Dated at Rockville, Maryland, this 2 nd day of September 2009. FOR THE NUCLEAR REGULATORY COMMISSION Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation September 2, 2009 Mr. Stewart B. Minahan Vice President-Nuclear and CNO Nebraska Public Power District 72676 648A Avenue Brownville, NE 68321 COOPER NUCLEAR STATION -ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT (TAC NO. MD9922)
Dear Mr. Minahan:
Enclosed is a copy of the Environmental Assessment and Finding of No Significant Impact related to your application for exemption dated October 13, 2008, as supplemented on April 8, May 29, June 12, and September 1, 2009. The proposed exemption from the requirements of Title 10 of the Code of Federal Regulations (10 CFR), paragraph 50.54(0) and 10 CFR Part 50, Appendix J, Option B, Sections liLA and III.B, would permit exclusion of the main steam pathway leakage contribution from the overall integrated leakage rate Type A test measurement and from the sum of the leakage rates from Type B and Type C test measurements.
The assessment is being forwarded to the Office of the Federal Register for publication.
Sincerely, /RN Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298
Enclosure:
As stated cc w/encl: Distribution via Listserv DISTRIBUTION:
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BPham* MSmith* MMarkley Flyon DATE 9/1/09 3/18/09 3/24/09 8/24/09 9/2109 9/2/09 *P I d OFFICIAL RECORD COPY