Letter Sequence Response to RAI |
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Category:Letter type:L
MONTHYEARL-23-260, Corrections to the 2022 Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station2023-12-0707 December 2023
Corrections to the 2022 Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station
L-23-243, Independent Spent Fuel Storage Installation - Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-0606 December 2023
Independent Spent Fuel Storage Installation - Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
L-23-215, Changes to Emergency Plan2023-10-19019 October 2023
Changes to Emergency Plan
L-23-205, Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-09-12012 September 2023
Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments
L-23-172, Quality Assurance Program Manual2023-08-31031 August 2023
Quality Assurance Program Manual
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
L-23-175, Submittal of Fifth Ten Year Inservice Testing Program2023-08-0101 August 2023
Submittal of Fifth Ten Year Inservice Testing Program
L-23-034, 2022 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models2023-06-13013 June 2023
2022 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models
L-23-135, Response to Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-05-31031 May 2023
Response to Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations
L-23-065, Annual Financial Report2023-05-22022 May 2023
Annual Financial Report
L-23-131, Readiness for Resumption of NRC Supplemental Inspection2023-05-12012 May 2023
Readiness for Resumption of NRC Supplemental Inspection
L-23-101, Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station - 20222023-05-12012 May 2023
Combined Annual Radiological Environmental Operating Report and Radioactive Effluent Release Report for the Davis-Besse Nuclear Power Station - 2022
L-23-092, Occupational Radiation Exposure Report for Year 20222023-04-27027 April 2023
Occupational Radiation Exposure Report for Year 2022
L-23-061, Submittal of the Decommissioning Funding Status Reports2023-03-31031 March 2023
Submittal of the Decommissioning Funding Status Reports
L-23-037, and Perry Nuclear Power Plant - Independent Spent Fuel Storage Installation Changes, Tests, and Experiments2023-03-29029 March 2023
and Perry Nuclear Power Plant - Independent Spent Fuel Storage Installation Changes, Tests, and Experiments
L-23-066, Annual Notification of Property Insurance Coverage2023-03-21021 March 2023
Annual Notification of Property Insurance Coverage
L-23-059, Response to Apparent Violation in NRC Inspection Report 05000346/2022091; EA 23-0022023-03-0909 March 2023
Response to Apparent Violation in NRC Inspection Report 05000346/2022091; EA 23-002
L-22-212, CFR 50.55a Request RP-5 Regarding Inservice Pump Testing2023-03-0606 March 2023
CFR 50.55a Request RP-5 Regarding Inservice Pump Testing
L-23-048, Response to Request for Additional Information Regarding Technical Specification 5.6.6 Steam Generator Tube Inspection 180-Day Report2023-03-0101 March 2023
Response to Request for Additional Information Regarding Technical Specification 5.6.6 Steam Generator Tube Inspection 180-Day Report
L-23-057, Energy Harbor Nuclear Corp Retrospective Premium Guarantee2023-02-20020 February 2023
Energy Harbor Nuclear Corp Retrospective Premium Guarantee
L-22-253, Submittal of Pressure and Temperature Limits Report, Revision 52023-01-10010 January 2023
Submittal of Pressure and Temperature Limits Report, Revision 5
L-22-284, Request for Notice of Enforcement Discretion for Technical Specification 3.7.9, Ultimate Heat Sink (UHS)2022-12-28028 December 2022
Request for Notice of Enforcement Discretion for Technical Specification 3.7.9, Ultimate Heat Sink (UHS)
L-22-211, Technical Specification 5.6.6 Steam Generator Tube Inspection 180-Day Report2022-09-29029 September 2022
Technical Specification 5.6.6 Steam Generator Tube Inspection 180-Day Report
L-22-216, Submittal of Pressure and Temperature Limits Report. Revision 42022-09-27027 September 2022
Submittal of Pressure and Temperature Limits Report. Revision 4
L-22-213, Occupational Radiation Exposure Report for Year 2021 - Correction2022-09-23023 September 2022
Occupational Radiation Exposure Report for Year 2021 - Correction
L-22-129, Submittal of the Updated Final Safety Analysis Report, Revision 342022-09-20020 September 2022
Submittal of the Updated Final Safety Analysis Report, Revision 34
L-22-194, Submittal of Supplemental Information for the Reanalysis for Protection Against Low Temperature Reactor Coolant System Overpressure Events2022-09-19019 September 2022
Submittal of Supplemental Information for the Reanalysis for Protection Against Low Temperature Reactor Coolant System Overpressure Events
L-22-203, Submittal of Evacuation Time Estimates2022-09-12012 September 2022
Submittal of Evacuation Time Estimates
L-22-050, Summary of Changes to the Energy Harbor Nuclear Corp. Quality Assurance Program Manual2022-08-0909 August 2022
Summary of Changes to the Energy Harbor Nuclear Corp. Quality Assurance Program Manual
L-22-152, Response to Request for Additional Information Regarding a License Amendment Request That Revises the Davis-Besse Nuclear Power Station Emergency Plan2022-07-0505 July 2022
Response to Request for Additional Information Regarding a License Amendment Request That Revises the Davis-Besse Nuclear Power Station Emergency Plan
L-22-068, Cycle 22 and Refueling Outage 22 Inservice Inspection Summary Report2022-06-30030 June 2022
Cycle 22 and Refueling Outage 22 Inservice Inspection Summary Report
L-22-037, 2021 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models2022-06-30030 June 2022
2021 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models
L-22-149, Post Accident Monitoring Report2022-06-23023 June 2022
Post Accident Monitoring Report
L-22-153, Readiness for NRC Supplemental Inspection Required for a White Finding2022-06-22022 June 2022
Readiness for NRC Supplemental Inspection Required for a White Finding
L-22-098, Withdrawal of Proposed Inservice Inspection Alternative RR-A22022-06-22022 June 2022
Withdrawal of Proposed Inservice Inspection Alternative RR-A2
L-22-136, Steam Generator Tube Circumferential Crack Report - Spring 2022 Refueling Outage2022-06-0707 June 2022
Steam Generator Tube Circumferential Crack Report - Spring 2022 Refueling Outage
L-22-102, Report of Facility Changes, Tests, and Experiments2022-05-16016 May 2022
Report of Facility Changes, Tests, and Experiments
L-22-092, Combined Annual Radiological Environmental Operating Report and Radiological Effluent Release Report for the Davis-Besse Nuclear Power Station - 20212022-05-16016 May 2022
Combined Annual Radiological Environmental Operating Report and Radiological Effluent Release Report for the Davis-Besse Nuclear Power Station - 2021
L-22-124, Response to Request for Additional Information Regarding License Amendment Request to Revise the Design Basis for the Shield Building2022-05-12012 May 2022
Response to Request for Additional Information Regarding License Amendment Request to Revise the Design Basis for the Shield Building
L-22-047, Unit No.1 - Core Operating Limits Report, Cycle 23, Revision O and Revision 12022-05-10010 May 2022
Unit No.1 - Core Operating Limits Report, Cycle 23, Revision O and Revision 1
L-22-127, Readiness for NRC Supplemental Inspection Required for a Greater than Green Finding2022-05-0606 May 2022
Readiness for NRC Supplemental Inspection Required for a Greater than Green Finding
L-22-089, Occupational Radiation Exposure Report for Year 20212022-04-12012 April 2022
Occupational Radiation Exposure Report for Year 2021
L-22-056, Energy Harbor Nuclear Corp., Annual Notification of Property Insurance Coverage2022-03-22022 March 2022
Energy Harbor Nuclear Corp., Annual Notification of Property Insurance Coverage
L-22-059, Response to Request for Additional Information on Proposed Inservice Test Alternative RP-32022-03-21021 March 2022
Response to Request for Additional Information on Proposed Inservice Test Alternative RP-3
L-22-074, Response to Regulatory Issue Summary 2022-01, Preparation and Scheduling of Operator Licensing Examinations2022-03-15015 March 2022
Response to Regulatory Issue Summary 2022-01, Preparation and Scheduling of Operator Licensing Examinations
L-22-061, Ile Post Exam Letter L-22-0612022-02-24024 February 2022
Ile Post Exam Letter L-22-061
L-22-023, Retrospective Premium Guarantee2022-02-17017 February 2022
Retrospective Premium Guarantee
L-21-266, Response to Request for Additional Information on Proposed Inservice Inspection Alternative RR-A22022-01-27027 January 2022
Response to Request for Additional Information on Proposed Inservice Inspection Alternative RR-A2
L-20-289, Emergency Plan Amendment Request2022-01-19019 January 2022
Emergency Plan Amendment Request
L-21-290, Response to NRC Inspection Report 05000346/2021091, EA-21-1762021-12-21021 December 2021
Response to NRC Inspection Report 05000346/2021091, EA-21-176
2023-09-12
[Table view] |
Text
5501 North State Route 2 Oak Harbor, Ohio 43449 RrstEnergy Nuclear Operating Company 419-321-7676 Raymond A Lleb Fax: 419-321-7582
- Vice President, Nuclear September 25, 2013 L-13-295 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 SUBJECT :*
Davis-Besse Nuclear Power Station Docket No. 50-346, License No. NPF-3 Response to Request for Additional Information Regarding 10 CFR 50.55a Request RP-3 (TAC No. MF0757); and Code Case Number Corrections in 10 CFR 50.55a Request RR-A1 (TAC No. MF0753)
By correspondence dated February 27, 2013 (Accession No. ML13059A321),
FirstEnergy Nuclear Operating Company (FENOC) submitted 10 CFR 50.55a Request RP-3 for the Davis-Besse Nuclear Power Station (DBNPS). By correspondence dated August 28, 2013 (Accession No. ML13227A367), the Nuclear Regulatory Commission (NRC) requested additional information to complete its review of Request RP-3.
FENOC's response to this request is attached.
By correspondence dated February 27,2013 (Accession No. ML13059A315), FENOC submitted 10 CFR 50.55a Request RR-A1 for the DBNPS. On August 29,2013, NRC and FENOC staff discussed typographical errors (incorrect code case numbers) in Request RR-A 1. FENOC hereby amends Request RR-A 1, page 3 of 4, section 5, last paragraph, to correct the errors by citing Code Case N-532-4 and Code Case N-532-5 in lieu of Code Case N-352-4 and Code Case N-352-5, respectively.
There are no regulatory commitments contained in this submittal. If there are any questions or additional information is required, please contact Mr. Thomas A. Lentz, Manager- Fleet Licensing, at (330) 315-6810.
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Raymond A. Lieb
Davis Besse Nuclear Power Station L-13-295 Page 2
Attachment:
Response to August 28, 2013 Request for Additional Information Regarding 10 CFR 50.55a Request RP-3 cc: NRC Region Ill Administrator NRC Resident Inspector NRC Project Manager Utility Radiological Safety Board
Attachmen t L-13-295 Response to August 28, 2013 Request for Additional Information Regarding 10 CFR 50.55a Request RP-3 Page 1 of 3 The Nuclear Regulatory Commission Staff questions are provided below in bold text and are followed by the FirstEnergy Nuclear Operating Company Response.
- 1. Subsection ISTB-5100 of the American Society of Mechanical Engineers Operations and Maintenance of Nuclear Power Plants Code (ASME OM Code),
"Centrifugal Pumps (Except Vertical Line Shaft Centrifugal Pumps,"
(a), "Duration of Tests," (1), states that:
For the Group A test and the comprehensive test, after pump conditions are stable as the system permits, each pump shall.
be run at least 2 min. At the end of this time at least one measurement or determination of each of the quantities required by Table ISTB-3000-1 shall be made and recorded.
For the proposed testing for the fuel oil transfer pumps, discuss whether each pump will be run for at least two minutes after the stabilization of pump conditions prior to measuring pump flow rate ..
Response
Fuel oil transfer pump flow rate is calculated by measuring the change in emergency diesel generator (EDG) day tank level over time. For the proposed testing, EDG day tank level is measured prior to starting and after stopping the fuel oil transfer pump.
Measurement of EDG day tank level after starting the fuel oil transfer pump may not reflect static tank level, due to movement of fuel entering the tank. Since measuring the EDG day tank level is not practical while the pump is running, the volume of fuel oil transferred to the day tank after stabilization of pump conditions and the fuel oil transfer pump flow rate cannot be reliably calculated by this method. Therefore, each fuel oil transfer pump will not be run for at least two minutes after the stabilization of pump conditions as stated in subparagraph ISTB-51 OO(a)(1 ).
FENOC hereby amends Request RP-3 (in the February 27, 2013 submittal, Accession No. ML13059A321 ), to include the following provisions.
o The following code requirement is to be added to page 1 of 4, under section 3, "Applicable Code Requirement."
Subparagraph ISTB-51 OO(a)(1) of the ASME OM Code, states that for the Group A test and the comprehensive test, after pump conditions are as stable as the system permits, each pump shall be run at least 2 minutes. At the end of this time at least one measurement or determination of each of the quantities required by Table ISTB-3000-1 shall be made and recorded.
- The following words are to be added to page 2 of 4, Section 6, "Proposed Alternative and Basis for Use," first paragraph, second sentence.
Attachment L-13-295 Page 2 of 3 The following testing will be performed in lieu of the inservice test requirements (subparagraphs ISTB-5100(a)(1), ISTB-5121 and ISTB-5123), test acceptance criteria (Table ISTB-5121-1 ), and test frequency requirements {Table ISTB-3400-1) described above in the applicable code requirements section. [Underlined characters to be added.]
- 2. Page 3 of Attachment C to the submittal dated February 27, 2013, states that:
The EDG fuel oil transfer pumps are rated at 10 gallons per minute (gpm). A conservative minimum flow value, with respect to design basis, will be used in lieu of ASME OM Code Table ISTB-5121-1.
Provide the conservative minimum flow value, in gpm. State whether the conservative minimum flow value is greater than or equal to 90 percent of the rated flow for the pumps (10 gpm). If the conservative minimum flow value is less than 90 percent of the rated flow for the pumps, provide justification as to why this is acceptable.
Response
The minimum flow rate used for test acceptance criteria is 6 gpm. This minimum flow rate is less than 90 percent of the rated flow for the pumps. The calculated consumption rate for the EDG at maximum power output is 3.6 gpm. Therefore, the minimum flow rate (6 gpm) is conservative relative to the maximum required pump flow rate (3.6 gpm) and justified for use as test acceptance criteria in lieu of the criteria in ASME OM Code Table ISTB-5121-1.
- 3. Page [3] of Attachment C to the submittal also states that:
Periodically, the EDG fuel oil storage tanks are drained, cleaned, and filled with fresh oil. The EDG day tanks are also drained, cleaned and inspected. At these times, a long term pump duration test is possible.
Define the term "periodically" in months and/or years. Address whether the fuel oil storage tank and associated day tank [are] cleaned at the same time.
Response
The EDG day tanks are drained, cleaned, and inspected on a 10-year frequency. The EDG fuel oil storage tanks are drained, cleaned, and refilled with fresh oil on a 48-month frequency. There have been no instances in the past 10 years where these tasks have been performed concurrently. However, there are no requirements that would preclude cleaning the tanks at the same time.
Attachment L-13-295 Page 3 of 3
- 4. Address whether any of the fuel oil transfer pumps had failed starts or corrective maintenance performed on them for the past 10 years. If yes, provide the details.
Response
EDG fuel oil transfer pump number 1 was replaced as a single unit with the motor in September 2005 due to low electrical resistance in the motor. This replacement was not due to degraded pump performance. The EDG fuel oil transfer pumps are canned motor/pump assemblies. As such, when replacement of either the motor or pump is required, the entire EDG fuel oil transfer pump assembly is replaced. There was no other record of corrective maintenance for this pump during the past 10 years. For EDG fuel oil transfer pump number 2, there is no record of corrective maintenance during the past 10 years. For both pumps, there is no record of failed starts during the past 10 years.
- 5. Provide the inservice test results for each fuel oil transfer pump for the past 10 years.
Response
The fpllowing tables provide a summary of inservice test results for each EDG fuel oil transfer pump test performed over the past 10 years.
EDG Fuel Oil EDG Fuel Oil Transfer Pump No. 1 Transfer Pump No. 2 Flow Rate Flow Rate Test Date Test Date (gpm) (gpm) 10/21/2003 11.9 10/21/2004 12.5 8/31/2005 12.5 2/28/2007 15 1/24/2007 12.6 10/15/2008 14.18 11/21/2008 14.4 12/11/2009 16.2 11/18/2010 14.1 10/14/2010 16.2 3/5/2013 14.38 5/22/2012 14.7
