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MONTHYEARML0330903572003-10-30030 October 2003 Tech Spec Pages for License Amendment 157, Revised Action for SCRAM Discharge Volume Vent and Drain Valves Project stage: Approval ML0326913442003-10-30030 October 2003 License Amendment, Revised Action for SCRAM Discharge Volume Vent and Drain Valves Project stage: Other 2003-10-30
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Similar Documents at Fermi |
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Category:Letter
MONTHYEARIR 05000341/20230042024-02-0505 February 2024 Integrated Inspection Report 05000341/2023004 ML23341A1852023-12-0808 December 2023 Acknowledgement of Response to NRC Inspection Report 05000341/2023402 and Disputed Non-Cited Violation ML23310A1492023-12-0808 December 2023 Issuance of Amendment No. 227 Regarding Revision of Technical Specification 3.8.1, AC Sources - Operating, Emergency Diesel Generator Voltage and Frequency Surveillance Requirements IR 05000341/20230102023-12-0808 December 2023 Nbsp;Biennial Problem Identification and Resolution Inspection Report 05000341/2023010 IR 05000016/20230012023-12-0101 December 2023 NRC Inspection Report No. 050-00016/2023-001 (Drss) - Enrico Fermi Atomic Power Plant, Unit 1 ML23334A1902023-12-0101 December 2023 Request for Information for an NRC Post-Approval Site Inspection for License Renewal Inspection Report 05000341/2024010 ML23335A0062023-12-0101 December 2023 Notification of NRC Baseline Inspection and Request for Information; 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[Table view] Category:License-Operating (New/Renewal/Amendments) DKT 50
MONTHYEARML23310A1492023-12-0808 December 2023 Issuance of Amendment No. 227 Regarding Revision of Technical Specification 3.8.1, AC Sources - Operating, Emergency Diesel Generator Voltage and Frequency Surveillance Requirements ML23297A0512023-10-30030 October 2023 Issuance of Amendment No. 226 Regarding Revision of Technical Specifications 3.8.1, AC Sources - Operating (Exigent Circumstances) ML23243A8852023-09-18018 September 2023 Issuance of Amendment No. 225 Regarding Revision of Technical Specifications 3.7.2, Emergency Equipment Cooling Water, Emergency Equipment Service Water and System and Ultimate Heat Sink (Exigent Circumstances) ML23229A0122023-08-17017 August 2023 Issuance of Amendment No. 224 to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.2 (Emergency Circumstances) ML23122A2332023-06-26026 June 2023 Issuance of Amendment No. 223 Regarding Revision of Technical Specifications to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements ML21335A2802022-04-0707 April 2022 Issuance of Amendment No. 222 Regarding Revision of Technical Specifications to Remove Obsolete Information, Make Minor Corrections, and Make Several Editorial Changes ML21147A1672021-06-11011 June 2021 Issuance of Amendment No. 221 Regarding Revision of Technical Specifications to Adopt Technical Specification Task Force Traveler TSTF-563 ML21029A2542021-05-24024 May 2021 Issuance of Amendment No. 220 - Revision to Technical Specifications to Utilize Neutron Absorbing Inserts in Criticality Safety Analysis for Spent Fuel Pool Storage Racks (Non-Proprietary) ML21098A0452021-04-26026 April 2021 Issuance of Amendment No. 219 to Revise Technical Specifications to Adopt TSTF-529 ML20358A1552021-02-24024 February 2021 Issuance of Amendment No. 218, Revision to Technical Specifications to Change Certain Surveillance Intervals to Accommodate a 24-Month Fuel Cycle ML20294A0352020-12-22022 December 2020 Issuance of Amendment No. 217 - Revision to Technical Specifications for Secondary Containment Surveillance Requirements ML20233A8382020-10-0505 October 2020 Issuance of Amendment No. 216 - Revision to Technical Specification in Response to GE Energy-Nuclear's 10 CFR Part 21 Safety Communication SC05-03 ML20094G8142020-04-0808 April 2020 Audit Plan in Support of the Review of License Amendment Request to Revise Technical Specifications to Change Surveillance Intervals to Accommodate a 24-Month Fuel Cycle ML19288A0732019-12-18018 December 2019 Issuance of Amendment No. 215 Revision to Technical Specification 3.3.5.3 ML19189A0042019-11-0505 November 2019 Issuance of Amendment Technical Specifications Task Force (TSTF)-564 Safety Limit Minimum Critical Power Ratio ML18306A4512019-01-0707 January 2019 Issuance of Amendment Technical Specifications Task Force (TSTF) Traveler TSTF-535, Revision 0, Revise Shutdown Margin Definition to Address Advanced Fuel Designs ML18250A1632018-09-20020 September 2018 Issuance of Amendment No. 212 Elimination of Main Steam Line Radiation Monitor Trip and Isolation Function (CAC No. MG0228; EPID L-2017-LLA-0274) ML18247A4522018-09-17017 September 2018 Issuance of Amendment Revision to Technical Specifications to Adopt Technical Specifications Task Force (TSTF) Traveler TSTF 542, Revision 2, Reactor Pressure Vessel Water Inventory Control (CAC No. MG0208; EPID L-2017-LLA-0282) ML18165A2022018-09-13013 September 2018 Issuance of Amendment Regarding the Adoption of TSTF-484, Use of TS 3.10.1 for Scram Time Testing Activities ML18144A0642018-07-17017 July 2018 Issuance of Amendment to Revise Technical Specification Section 3.7.2, Emergency Equipment Cooling Water/Emergency Equipment Service Water System and Ultimate Heat Sink ML18108A0222018-05-24024 May 2018 Issuance of Amendment to Revise Technical Specifications 5.5.7 Ventilation Filter Testing Program (Vftp), to Be Consistent with Standard Technical Specifications ML17128A3162017-11-29029 November 2017 Issuance of Amendment to Revise Technical Specifications to Adopt TSTF-545, Revision 3, TS Inservice Testing Program Removal & Clarify SR Usage Rule Application to Section 5.5 Testing, Using the Consolidated Line Item Improvement Process ML17076A0272017-04-14014 April 2017 Issuance of Amendment to Revise High Pressure Coolant Injection System and Reactor Core Isolation Cooling System Actuation Instrumentation Technical Specifications ML17074A1092017-03-16016 March 2017 Corrections to Amendment No. 205 Regarding Type a and C Testing ML16351A4602017-03-0909 March 2017 Issuance of Amendment to Extend Containment Leakage Test Frequency ML16270A5262016-12-15015 December 2016 Fermi 2, Renewed Facility Operating License NPF-43 ML16069A0062016-04-20020 April 2016 Issuance of Amendment Technical Specifications to Adopt Technical Specifications Task Force - 523, Generic Letter 2008-01, Managing Gas Accumulation ML16054A6372016-04-0505 April 2016 Issuance of Amendment to Revise License Amendment Request to Revise Technical Specification Section 3.5.1, Emergency Core Cooling System - Operating Report ML15233A0842015-09-29029 September 2015 Issuance of Amendment License Amendment Request to Revise the Emergency Action Level Scheme for the Fermi Emergency Plan ML15155B4162015-07-14014 July 2015 Ferm, Uniti 2 - Issuance of Amendment Revise Technical Specifications by Relocating Surveillance Frequencies to Licensee Control in Accordance with Technical Specification Task Force Traveler 425, Revision 3 ML15096A0432015-05-0707 May 2015 Issuance of Amendment Cyber Security Plan Implementation Schedule (Tac No. MF4366) ML15057A2972015-03-16016 March 2015 Issuance of Amendment License Amendment Request to Revise Technical Specification Surveillance Requirements for Direct Current Batteries (Tac No. MF4002) ML14016A4872014-03-10010 March 2014 Issuance of Amendment Revise the Fermi 2 Licensing Basis Concerning Protection from Tornado-Generated Missiles ML13364A1312014-02-10010 February 2014 Issuance of Amendment Measurement Uncertainty Recapture Power Uprate ML13346B0672014-02-0404 February 2014 Issuance of Amendment Relocation of Pressure and Temperature Curves to a Pressure Temperature Limits Report ML13309A5942014-01-17017 January 2014 Issuance of Amendment to Adopt TSTF-423 Revision 1 Technical Specifications End States, NEDC-32988-A ML13204A1152013-08-0808 August 2013 Attachment 2 - Fermi 1, Amendment 21 to Operating License ML13164A2502013-07-12012 July 2013 Issuance of Amendment to Change Licensee Name on the Operating License ML13112A1422013-05-13013 May 2013 Issuance of Amendment to Revise Technical Specifications to Adopt TSTF-522, Using Consolidated Line Item Improvement Process ML12207A5042012-08-29029 August 2012 Issuance of Amendment for Adoption of TSTF-306 ML1135004332012-02-24024 February 2012 Issuance of Amendment 188 TSTF-50, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control ML1124504642011-09-23023 September 2011 Issuance of Amendment Staff Augmentation Times During Radiological Emergencies ML1122109312011-08-26026 August 2011 License Amendment 186, Reactor Coolant System Leakage ML1119202212011-07-28028 July 2011 License Amendment, Cyber Security Plan ML1036304352011-01-24024 January 2011 License Amendment, Revise the Core Spray Flow Requirement of Technical Specification Surveillance Tests ML1027703822010-10-20020 October 2010 Issuance of Amendment to Revise Degraded Voltage Function to Reflect Modification ML1013408612010-05-15015 May 2010 Issuance of Emergency Amendment Regarding Onetime Extension of the Completion Time in Technical Specification 3.7.3, Control Room Emergency Filtration (CREF) System, Condition B ML0913906462009-06-19019 June 2009 License Amendment, Issuance of Amendment Removal of Statements Related to Nuclear Power Plant Staff Working Hours in Technical Specifications ML0812705642008-06-25025 June 2008 Issuance of Amendment 180 Delete the Note Associated with the Performance of Channel Calibration for Primary Containment High Range Radiation Monitor in Technical Specification 3.3.3.1 Surveillance Requirements ML0814904202008-06-23023 June 2008 Issuance of Amendment 179 Control Rod Notch Surveillance Test Frequency - TSTF-475 2023-09-18
[Table view] Category:Safety Evaluation
MONTHYEARML23310A1492023-12-0808 December 2023 Issuance of Amendment No. 227 Regarding Revision of Technical Specification 3.8.1, AC Sources - Operating, Emergency Diesel Generator Voltage and Frequency Surveillance Requirements ML23297A0512023-10-30030 October 2023 Issuance of Amendment No. 226 Regarding Revision of Technical Specifications 3.8.1, AC Sources - Operating (Exigent Circumstances) ML23243A8852023-09-18018 September 2023 Issuance of Amendment No. 225 Regarding Revision of Technical Specifications 3.7.2, Emergency Equipment Cooling Water, Emergency Equipment Service Water and System and Ultimate Heat Sink (Exigent Circumstances) ML23229A0122023-08-17017 August 2023 Issuance of Amendment No. 224 to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.2 (Emergency Circumstances) ML23122A2332023-06-26026 June 2023 Issuance of Amendment No. 223 Regarding Revision of Technical Specifications to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements ML21335A2802022-04-0707 April 2022 Issuance of Amendment No. 222 Regarding Revision of Technical Specifications to Remove Obsolete Information, Make Minor Corrections, and Make Several Editorial Changes ML21253A0102021-10-15015 October 2021 Revised Relief Request RR-A39 for the Fourth 10-Year Inservice Inspection Interval ML21147A1672021-06-11011 June 2021 Issuance of Amendment No. 221 Regarding Revision of Technical Specifications to Adopt Technical Specification Task Force Traveler TSTF-563 ML21029A2542021-05-24024 May 2021 Issuance of Amendment No. 220 - Revision to Technical Specifications to Utilize Neutron Absorbing Inserts in Criticality Safety Analysis for Spent Fuel Pool Storage Racks (Non-Proprietary) ML21098A0452021-04-26026 April 2021 Issuance of Amendment No. 219 to Revise Technical Specifications to Adopt TSTF-529 ML21036A0822021-03-12012 March 2021 Relief Request RR-A42 for Inservice Inspection Impracticality During the Third 10-Year Inservice Inspection Interval ML20358A1552021-02-24024 February 2021 Issuance of Amendment No. 218, Revision to Technical Specifications to Change Certain Surveillance Intervals to Accommodate a 24-Month Fuel Cycle ML20294A0352020-12-22022 December 2020 Issuance of Amendment No. 217 - Revision to Technical Specifications for Secondary Containment Surveillance Requirements ML20233A8382020-10-0505 October 2020 Issuance of Amendment No. 216 - Revision to Technical Specification in Response to GE Energy-Nuclear's 10 CFR Part 21 Safety Communication SC05-03 ML20169A6522020-07-0808 July 2020 Revised Valve Relief Request VRR-004 for the Inservice Testing Program Fourth 10-Year Interval ML20034F7842020-02-0707 February 2020 Issuance of Relief Proposed Alternative Requests Nos. 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PRR-001 and PRR-004 Associated with Fourth Ten Year Interval Pump Inservice Testing Program (EPID L-2019-LLR-0038 and EPID L-2019-LLR-0041) ML19288A0732019-12-18018 December 2019 Issuance of Amendment No. 215 Revision to Technical Specification 3.3.5.3 ML19267A0272019-10-0303 October 2019 Proposed Alternative to the Required Examination Associated with Snubbers ML19248C7072019-10-0303 October 2019 Proposed Alternative to the Required Examination Associated with Valves Examination ML19183A4722019-08-19019 August 2019 Relief from the Requirements of the American Society of Mechanical Engineers Code ML19183A0232019-07-31031 July 2019 Safety Evaluation Regarding Implementation of Hardened Containment Vents Capable of Operation Under Severe Accident Conditions Related to Order EA-13-109 ML19204A2532019-07-20020 July 2019 Relief from the Requirements of the ASME Code ML19171A3572019-06-27027 June 2019 Relief from the Requirements of the ASME Code PRR-002 and PRR-003 ML19169A3152019-06-26026 June 2019 2. - Relief from the Requirements of the ASME Code ML19143A2192019-06-13013 June 2019 Relief from the Requirements of the ASME Code ML18306A4512019-01-0707 January 2019 Issuance of Amendment Technical Specifications Task Force (TSTF) Traveler TSTF-535, Revision 0, Revise Shutdown Margin Definition to Address Advanced Fuel Designs ML18250A1632018-09-20020 September 2018 Issuance of Amendment No. 212 Elimination of Main Steam Line Radiation Monitor Trip and Isolation Function (CAC No. MG0228; EPID L-2017-LLA-0274) ML18165A2022018-09-13013 September 2018 Issuance of Amendment Regarding the Adoption of TSTF-484, Use of TS 3.10.1 for Scram Time Testing Activities ML18144A0642018-07-17017 July 2018 Issuance of Amendment to Revise Technical Specification Section 3.7.2, Emergency Equipment Cooling Water/Emergency Equipment Service Water System and Ultimate Heat Sink ML18096A6142018-06-0505 June 2018 Relief from the Requirements of the ASME Code ML18108A0222018-05-24024 May 2018 Issuance of Amendment to Revise Technical Specifications 5.5.7 Ventilation Filter Testing Program (Vftp), to Be Consistent with Standard Technical Specifications ML17354B0022018-03-0707 March 2018 Relief from the Requirement of the ASME OM Code (CAC No. MG0070; EPID L-2017-LLR-0079) ML18003A2102018-03-0707 March 2018 Relief from the Requirements of the ASME OM Code (CAC No. MG0119; EPID L-2017-LLR-0082) ML17128A3162017-11-29029 November 2017 Issuance of Amendment to Revise Technical Specifications to Adopt TSTF-545, Revision 3, TS Inservice Testing Program Removal & Clarify SR Usage Rule Application to Section 5.5 Testing, Using the Consolidated Line Item Improvement Process ML17076A0272017-04-14014 April 2017 Issuance of Amendment to Revise High Pressure Coolant Injection System and Reactor Core Isolation Cooling System Actuation Instrumentation Technical Specifications ML16351A4602017-03-0909 March 2017 Issuance of Amendment to Extend Containment Leakage Test Frequency ML16357A2802017-01-18018 January 2017 Relief from the Requirements of the ASME Code ML16258A0402016-09-29029 September 2016 Fermi, Unit 2 - Safety Evaluation Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Pool Instrumentation Related to Orders EA-12-049 and EA-12-051 (CAC Nos. MF0770 and MF0771) ML16230A5082016-09-23023 September 2016 Revised Relief Request No. PRR-007 for the Inservice Testing Program Third10-year Interval (CAC No. Mf7573) ML16069A0062016-04-20020 April 2016 Issuance of Amendment Technical Specifications to Adopt Technical Specifications Task Force - 523, Generic Letter 2008-01, Managing Gas Accumulation ML16054A6372016-04-0505 April 2016 Issuance of Amendment to Revise License Amendment Request to Revise Technical Specification Section 3.5.1, Emergency Core Cooling System - Operating Report ML15233A0842015-09-29029 September 2015 Issuance of Amendment License Amendment Request to Revise the Emergency Action Level Scheme for the Fermi Emergency Plan ML15218A3602015-08-24024 August 2015 Inservice Testing Program Relief Request PRR-012 for Quarterly Test of Core Spray Pumps (Tac No. MF5816) ML15155A5062015-07-29029 July 2015 Request for Use of Mururoa Supplied Air Suits Models MTH2, V4F1 and Blu Suit Systems ML15155B4162015-07-14014 July 2015 Ferm, Uniti 2 - Issuance of Amendment Revise Technical Specifications by Relocating Surveillance Frequencies to Licensee Control in Accordance with Technical Specification Task Force Traveler 425, Revision 3 ML15096A0432015-05-0707 May 2015 Issuance of Amendment Cyber Security Plan Implementation Schedule (Tac No. MF4366) ML15057A2972015-03-16016 March 2015 Issuance of Amendment License Amendment Request to Revise Technical Specification Surveillance Requirements for Direct Current Batteries (Tac No. MF4002) ML14176A9292014-07-16016 July 2014 Alternative Request PVRR-001 Concerning the Third 10-Year Inservice Testing Program 2023-09-18
[Table view] |
Text
October 30, 2003 Mr. William T. OConnor, Jr.
Vice President - Nuclear Generation Detroit Edison Company 6400 North Dixie Highway Newport, MI 48166
SUBJECT:
FERMI 2 - ISSUANCE OF AMENDMENT RE: REVISED ACTION FOR SCRAM DISCHARGE VOLUME VENT AND DRAIN VALVES (TAC NO. MB9745)
Dear Mr. OConnor:
The Commission has issued the enclosed Amendment No. 157 to Facility Operating License No. NPF-43 for the Fermi 2 facility. The amendment consists of changes to the Technical Specifications (TSs) in response to your application dated June 24, 2003.
The amendment revises TS 3.1.8, "Scram Discharge Volume (SDV) Vent and Drain Valves," to allow a vent or drain line with one inoperable valve to be isolated instead of requiring the valve to be restored to Operable status within 7 days.
A copy of our safety evaluation is also enclosed. The Notice of Issuance will be included in the Commission's biweekly Federal Register notice.
Sincerely,
/RA/
Harold K. Chernoff, Project Manager, Section 1 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-341
Enclosures:
- 1. Amendment No. 157 to NPF-43
- 2. Safety Evaluation cc w/encls: See next page
ML032691344 *By email OFFICE CLIIP/LPM* PDIII-1/PM PDIII-1/LA PDIII-1/SC NAME WReckley HChernoff RBouling MShuaibi for LRaghavan DATE 07/29/03 10/27/03 10/27/03 10/30/03 Fermi 2 cc:
Mr. Peter Marquardt Legal Department 688 WCB Detroit Edison Company 2000 2nd Avenue Detroit, MI 48226-1279 Michigan Department of Environmental Quality Waste and Hazardous Materials Division Hazardous Waste and Radiological Protection Section Nuclear Facilities Unit Constitution Hall, Lower-Level North 525 West Allegan Street P.O. Box 30241 Lansing, MI 48909-7741 U.S. Nuclear Regulatory Commission Resident Inspectors Office 6450 W. Dixie Highway Newport, MI 48166 Monroe County Emergency Management Division 963 South Raisinville Monroe, MI 48161 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4351 Norman K. Peterson Director, Nuclear Licensing Detroit Edison Company Fermi 2 - 280 TAC 6400 North Dixie Highway Newport, MI 48166 December 2002
DETROIT EDISON COMPANY DOCKET NO. 50-341 FERMI 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 157 License No. NPF-43
- 1. The Nuclear Regulatory Commission (the Commission) has found that:
A. The application for amendment by the Detroit Edison Company (the licensee) dated June 24, 2003, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.
- 2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment and paragraph 2.C.(2) of Facility Operating License No. NPF-43 is hereby amended to read as follows:
Technical Specifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Amendment No. 157, and the Environmental Protection Plan contained in Appendix B, are hereby incorporated in the license. DECo shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
- 3. This license amendment is effective as of its date of issuance and shall be implemented within 90 days.
FOR THE NUCLEAR REGULATORY COMMISSION
/RA by MShuaibi for/
L. Raghavan, Chief, Section 1 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance: October 30, 2003
ATTACHMENT TO LICENSE AMENDMENT NO. 157 FACILITY OPERATING LICENSE NO. NPF-43 DOCKET NO. 50-341 Replace the following page of the Appendix A Technical Specifications with the attached revised page. The revised page is identified by amendment number and contains marginal lines indicating the areas of change.
REMOVE INSERT 3.1-24 3.1-24
SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 157 FACILITY OPERATING LICENSE NO. NPF-43 DETROIT EDISON COMPANY FERMI 2 DOCKET NO. 50-341
1.0 INTRODUCTION
By application dated June 24, 2003, the Detroit Edison Company (the licensee) requested changes to the Technical Specifications (TSs) for Fermi 2. The proposed changes would revise the required action within TS 3.1.8, "Scram Discharge Volume (SDV) Vent and Drain Valves,"
for the condition of having one or more SDV vent or drain lines with one valve inoperable.
These changes are based on Technical Specifications Task Force (TSTF) Change Traveler TSTF-404 (Revision 0) that has been approved generically for NUREG-1433, Revision 2, "Standard Technical Specifications - General Electric Plants, BWR [Boiling-Water Reactor]/4, and NUREG-1434, Revision 2, "Standard Technical Specifications - General Electric Plants, BWR/4." A notice announcing the availability of this proposed TS change using the consolidated line item improvement process (CLIIP) was published in the Federal Register on April 15, 2003 (68 FR 18294). The Nuclear Regulatory Commission (NRC) staff has made minor editorial changes to the model safety evaluation that was published in the Federal Register.
2.0 REGULATORY EVALUATION
NRC regulations and review standards such as Appendix A, "General Design Criteria for Nuclear Power Plants," to Title 10 of the Code of Federal Regulations (10 CFR), Part 50, include specific requirements for reactor protection and reactivity control systems. The reactor protection systems for BWRs use a hydraulic system to insert control rods into the reactor core.
During an actuation of the reactor protection system (a scram), water is exhausted from the control rod drive mechanisms to the SDVs. Proper maintenance and operation of the SDVs in terms of instrumentation and limiting water volumes are essential for assuring the reliability of the reactor protection system (see NRC Bulletin 80-17, "Failure of Control Rods to Insert During a Scram at a BWR," related Orders to specific facilities, and information provided in plant final safety analysis reports and TS Bases). Maintaining the SDVs to ensure that accumulated water does not hamper or slow the insertion of control rods requires vent and drain valves. The vent and drain valves isolate during a scram to limit the amount of coolant discharged so that adequate core cooling is maintained and offsite doses remain within regulatory limits.
Specific regulatory requirements for SDV vent and drain valves are defined in TS 3.1.8.
Existing Limiting Condition for Operation 3.1.8 requires that each SDV vent and drain valve be operable. The operability of all SDV vent and drain valves ensures that the SDV vent and drain valves will close during a scram to contain reactor water discharged to the SDV piping. Since the vent and drain lines are provided with two valves in series, the single failure of one valve in the open position will not impair the isolation function of the system. Additionally, the valves are required to open on scram reset and during plant operation to control the amount of water accumulating in the SDV. If one or more SDV vent and drain lines have a single valve that is inoperable, the existing required action is to restore the valve(s) to operable status within 7 days. If an inoperable valve is not restored to operable status, a plant shutdown to MODE 3 is required within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If one or more SDV vent or drain lines have both valves inoperable, the associated line must be isolated within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. In this condition, the plant is allowed to operate indefinitely. A note associated with the required action clarifies that the valves may be opened under administrative controls to allow draining of the SDV. The existing SDV vent and drain valve required actions are inconsistent in that, although the operational and safety concerns are similar for having one or both valves in a line being inoperable, the actions for a single inoperable valve do not allow for the isolation of the line and administrative controls to support the draining of the SDV.
The proposed change would revise the required actions to be more consistent with the safety significance of one inoperable valve in an SDV line versus two inoperable valves in an SDV line.
3.0 TECHNICAL EVALUATION
The proposed changes to TS 3.1.8 are:
- 1. Required Action A.1 is revised from restoring the single inoperable SDV vent and drain valve in one or more SDV vent and drain lines to operable status to isolating the associated line.
- 2. The Note to Required Action B.1 which allows an isolated line to be unisolated under administrative controls for the purpose of draining and venting the SDV is moved to a note that applies to both Conditions A (single inoperable valve) and B (both valves inoperable).
With one SDV vent or drain valve inoperable in one or more lines, the isolation function would be maintained since the redundant valve in the affected line would perform its safety function of isolating the SDV. The current ACTION statement allows 7 days to repair the inoperable valve; the proposed change is to allow for the isolation of the affected line and continue operation. If the affected line is not isolated within the 7-day time period (or the inoperable valve is not restored), the licensee would then be required to proceed to MODE 3 in the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
Maintaining the 7-day Completion Time is acceptable because of the low probability of the concurrent events of a scram within the 7 days of the Completion Time and a failure of the redundant valve(s). Alternately, if the inoperable valve was initially closed, there would be ample time and warning available to drain the SDV before an automatic scram would occur due to SDV high level.
The allowance to administratively open a line that is isolated to comply with the actions (to permit draining and venting the SDV) is allowed by existing Required Action B.1. This allowance is being moved to apply to all ACTIONS based on the change proposed to Required Action A.1. This would allow any accumulated water in the line to be drained, to preclude a reactor scram on SDV high level. A reactor scram is initiated if the SDV water level in the instrument volume exceeds a specified setpoint. The setpoint is chosen so that all control rods are inserted before the SDV has insufficient volume to accept a full scram.
Regarding the isolation of the SDV, the remaining operable SDV vent and drain valve(s) would close automatically on a scram signal to isolate the lines. Or, if both valves in a line were inoperable (and opened under this provision), the reactor coolant release could be terminated by resetting the scram from the control room, or by manually closing the valves. Resetting the scram automatically closes the scram outlet valves, isolating the control rod drive discharge path to the SDV.
Based on the low probability of an event occurring during the defined Completion Time associated with this condition, the subsequent isolation of the affected lines, and the ability to open and drain the lines before an automatic scram due to SDV high water level, the proposed change maintains the necessary safety features and is therefore acceptable.
The change to TS 3.1.8 requires that the licensee revise the discussion in the associated TS Bases section. Although the licensees application included possible wording for the revised TS Bases discussion for TS 3.1.8, the licensee will formally address the change to the Bases in accordance with the Fermi 2 Bases Control Program. The NRC staff does not believe that the TS Bases change will require prior NRC approval when evaluated against the criteria in 10 CFR 50.59, "Changes, tests, and experiments," and, therefore, agrees that the revision of the Bases to TS 3.1.8 should be addressed separately from this amendment and should be included in a future update of the TS Bases in accordance with the Fermi 2 Bases Control Program.
4.0 STATE CONSULTATION
In accordance with the Commission's regulations, the Michigan State official was notified of the proposed issuance of the amendment. The State official had no comments.
5.0 ENVIRONMENTAL CONSIDERATION
The amendment changes a requirement with respect to the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The staff has determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendment involves no significant hazards consideration and there has been no public comment on such finding (68 FR 49815). Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.
6.0 CONCLUSION
The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commissions regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributor: W. Reckley Date: October 30, 2003