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| Line 15: |
Line 15: |
| | project = EPID:L-2017-LLA-0288 | | | project = EPID:L-2017-LLA-0288 |
| | stage = Draft RAI | | | stage = Draft RAI |
| | }} |
| | |
| | =Text= |
| | {{#Wiki_filter:1NRR-DMPSPEm ResourceFrom:Chawla, MaheshSent:Tuesday, February 06, 2018 9:18 AMTo:Davis, J.Michael (J.Michael.Davis@nexteraenergy.com); laura.swenzinski@nexteraenergy.com; Murrell, Bob (Bob.Murrell@nexteraenergy.com); 'Weaver, Tracy'; 'Probst, Jim'Cc:Catron, Steve (Steve.Catron@fpl.com); Kilby, Gary |
| | |
| | ==Subject:== |
| | Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288 |
| | |
| | ==Dear Mr. Davis:== |
| | |
| | By letter dated September 5, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17248A284), NextEra Energy Duane Arnold, LLC (NextEra), the licensee for Duane Arnold Energy Center (DAEC), has requested an amendment to DAEC Technical Specifications (TS). The proposed amendment would revise the DAEC TS 3.5.1, "ECCS - Operating" to decrease the nitrogen supply requirement for the Automatic Depressurization System (ADS) in Surveillance Requirement (SR) 3.5.1.3 from 100 days to 30 days. The U.S. Nuclear Regulatory Commission staff has reviewed the licensee's submittal and determined that additional information is required in order to complete the review. REQUEST FOR ADDITIONAL INFORMATION (RAI) RAI - 1 Regulatory Basis: 10 CFR Part 50.36 ''Technical specifications," establishes the surveillance requirements related to the content of the TS. 10 CFR Part 50.46, "Acceptance criteria for emergency core cooling systems for light-water nuclear power reactors," requires an ECCS system that meets the criteria in 10 CFR 50.46(b) for cooling performance following a LOCA. |
| | It was stated in Section 2.3 of the license amendment request (LAR), |
| | Review of the DAEC accident analyses has shown that the worst-case DAEC accident scenario will require the use of ADS for 3 days post-accident. Reducing the duration of time from 100 days to 30 days still provides ample conservativism for the DAEC accident analyses and allows for an increase in accumulator margin. |
| | Please provide the following additional information: |
| | a) Describe the worst-case event, including the number of times the valves are required to cycle open over the 3 day post-accident period, and whether the ADS valves have adequate capacity available to cycle during that period. b) Confirm that the capacity to cycle the ADS valves open at least five times at design pressures will still remain available during the proposed 30 days period, as stated in NUREG-0737, "Clarification of TMI Action Plan Requirements," Item II.K.3.28, "Verify Qualifications of Accumulators on Automatic Depressurization System Valves." Please arrange a teleconference with the NRC staff to discuss the above information. Thanks 2Mahesh Chawla Project Manager Phone: 301-415-8371 Fax: 301-415-1222 mahesh.chawla@nrc.gov |
| | |
| | Hearing Identifier: NRR_DMPS Email Number: 147 Mail Envelope Properties (MW2PR0901MB2442A1DEDE49AEFB1FA71527F1FD0) |
| | |
| | ==Subject:== |
| | Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288 Sent Date: 2/6/2018 9:17:33 AM Received Date: 2/6/2018 9:17:00 AM From: Chawla, Mahesh Created By: Mahesh.Chawla@nrc.gov Recipients: "Catron, Steve (Steve.Catron@fpl.com)" <Steve.Catron@fpl.com> Tracking Status: None "Kilby, Gary" <Gary.Kilby@fpl.com> Tracking Status: None "Davis, J.Michael (J.Michael.Davis@nexteraenergy.com)" <J.Michael.Davis@nexteraenergy.com> Tracking Status: None "laura.swenzinski@nexteraenergy.com" <laura.swenzinski@nexteraenergy.com> Tracking Status: None "Murrell, Bob (Bob.Murrell@nexteraenergy.com)" <Bob.Murrell@nexteraenergy.com> Tracking Status: None |
| | "'Weaver, Tracy'" <Tracy.Weaver@nexteraenergy.com> Tracking Status: None "'Probst, Jim'" <Jim.Probst@nexteraenergy.com> Tracking Status: None Post Office: MW2PR0901MB2442.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 2388 2/6/2018 9:17:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: |
| }} | | }} |
|
| |
|
Letter Sequence Draft RAI |
|---|
EPID:L-2017-LLA-0288, License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating (Approved, Closed) |
|
MONTHYEARNG-17-0127, License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating2017-09-0505 September 2017
License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating
Project stage: Request
ML18037B0032018-02-0606 February 2018
NRR E-mail Capture - Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288
Project stage: Draft RAI
NG-18-0024, Response to Request for Additional Information Regarding License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, EGGS-Operating2018-03-0101 March 2018
Response to Request for Additional Information Regarding License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, EGGS-Operating
Project stage: Response to RAI
ML18179A1842018-08-16016 August 2018
Issuance of Amendment 306 to Revise Technical Specification 3.5.1, ECCS-Operating
Project stage: Approval
2018-02-06
[Table View] |
|
|---|
Category:E-Mail
MONTHYEARML24122C6922024-05-0101 May 2024
NextEra Fleet EP Amendment - Demonstration Drill
ML23109A1862023-04-19019 April 2023
and Turkey Point Acceptance of Requested Licensing Action Proposed Alternative to Asme Section XI Authorizing Implementation of Asme Code Case N-752-1
ML22067A0922022-03-0303 March 2022
State Consultation - Duane Arnold ISFSI-Only EP License Amendment
ML22040A1162022-02-0808 February 2022
Email to G. Van Noordennen Zion and La Crosse Review Schedule Changes
ML22027A3582022-01-26026 January 2022
DAEC: CY2022 Inspection Plan, Docket No: 05000331, License No: DPR-49
ML22007A3102022-01-0505 January 2022
State Consultation - Draft No Significant Hazards Determination Regarding a LAR for NextEra Energy Duane Arnold, LLC, Duane Arnold Energy Center ISFSI in Palo, Iowa
ML22005A0992022-01-0404 January 2022
Email from a Snyder to a Leek Re State Consultation - Draft No Significant Hazards Determination - License Amend. Req. for NextEra Energy, LLC, DAEC ISFSI in Palo, Iowa
ML22005A0862022-01-0404 January 2022
1-4-2022 Email Communication to Duane Arnold Regarding Its ISFSI Related Exemption Request on Supplemental Information Needed
ML22005A1012022-01-0404 January 2022
Email from a Leek to a Snyder Re State Consultation - Draft No Significant Hazards Determination - License Amend. Req. for NextEra Energy, LLC, DAEC ISFSI in Palo Iowa
ML22004A0122022-01-0303 January 2022
E-mail from M. Davis, NextEra, to A. Snyder, NRC, - Duane Arnold Energy Center - Supplement Information to Technical Specification Amendment Application
ML21354A6722021-12-17017 December 2021
Email to State of Iowa - Draft EA on Duane Arnold Exemption
ML21214A0502021-08-0101 August 2021
Acceptance of License Amendment Request to Adopt an ISFSI-Only Physical Security Plan
ML21214A0482021-08-0101 August 2021
Acceptance of License Amendment Request to Adopt an ISFSI-Only Emergency Plan
ML21165A1212021-06-10010 June 2021
E-mail from M. Davis, Duane Arnold, to M. Doell and R. Edwards, NRC - Duane Arnold Defueled Emergency Plan Implementation Confirmation
ML21117A2752021-04-26026 April 2021
Acceptance of Updated Spent Fuel Management Plan
ML21089A2092021-03-19019 March 2021
Spent Fuel Pattern Procedure
ML21068A3352021-03-0707 March 2021
Acceptance of License Amendment Request to Adopt ISFSI-Only Technical Specifications
ML21056A2172021-02-17017 February 2021
Acceptance of License Amendment Request to Revise the Physical Security Plan Requirements
ML21032A1852021-02-0101 February 2021
Daec_ CY2021 Inspection Plan
ML21006A4052021-01-0606 January 2021
NRR E-mail Capture - Final RAI - Duane Arnold - Post-Shutdown Decommissioning Activities Report
ML20338A0032020-12-0101 December 2020
Letter from EPRI to Mr. Scott Wall, BWRVIP 2020-100, 288 Surveillance Capsule Test Results Report
ML20316A0212020-11-10010 November 2020
NRR E-mail Capture - Final RAI - Duane Arnold - Duane Arnold Amendment for Proposed Defueled EP and EAL Scheme
ML20289A3522020-10-14014 October 2020
NRR E-mail Capture - Duane Arnold Energy Center -Acceptance of Requested Licensing Action, One-Time Exemption from 10 CFR 50, Appendix E, Biennial Emergency Preparedness Exercise Requirements Due to COVID-19 Pandemic (EPID No. L-2020-LLE-01
ML20153A3772020-05-28028 May 2020
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center Quality Assurance Topical Report (FPL-3) - EPID L-2020-LLQ-0002)
ML20154K6202020-05-27027 May 2020
COVID-19 Preparedness Assessments for FEMA Region VII Duane Arnold Energy Center (DAEC) and Quad Cities Generating Station (Qcgs)
ML20141L8132020-05-19019 May 2020
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center (DAEC) - Exemption Request for Security Training Requirements Due to COVID-19 Pandemic - EPID L-2020-LLE-0042 to 45, L-2020-LLE-0051
ML20129J8282020-05-0606 May 2020
NRR E-mail Capture - LIC-109 Acceptance Review of Duane Arnold Request for Exemption from Portions of 10 CFR 50.47 and Appendix E - EPID L-2020-LLE-0023
ML20127H8662020-05-0505 May 2020
NRR E-mail Capture - Duane Arnold Energy Center (DAEC) - Request for Additional Information (RAI) - Request for Exemptions from 10 CFR 50.82(a)(8)(i)(A) and 1O CFR 50.75(h)(1)(iv) - EPID L-2020-LLE-0011
ML20122A1152020-04-30030 April 2020
NRR E-mail Capture - Duane Arnold Energy Center -Acceptance of Post-Shutdown Decommissioning Activities Report
ML20087F2872020-03-26026 March 2020
NRR E-mail Capture - LIC-109 Acceptance Review of Duane Arnold Request for Exemption from 10 CFR 50.82(a)(8)(i)(A) and 1O CFR 50.75(h)(1)(iv) - EPID L-2020-LLE-0011
ML20129J8322020-03-19019 March 2020
NRR E-mail Capture - (External_Sender) Teleconference with Nextra Energy - Duane Arnold Physical Security Plan LIC-109 Review Status
ML20022A3602020-01-22022 January 2020
NRR E-mail Capture - Duane Arnold Energy Center - Acceptance of Requested Licensing Action, Proposed Partial Exemption from Record Retention Requirements
ML19352G6872019-12-11011 December 2019
12-11-19 Email to FEMA: Response to FEMA Questions on Proposed DAEC Emergency Plan
ML19302G9732019-10-29029 October 2019
NRR E-mail Capture - LIC-109 Acceptance of Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR- 186): Removal of License Condition 2.C.(3), Fire Protection Program - EPID L-2019-LLA-0211
ML19302G3212019-10-29029 October 2019
LIC-109 Acceptance of Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR- 186) - Removal of License Condition 2.C.(3), Fire Protection Program - EPID L-2019-LLA-0211
ML19280A0352019-10-0404 October 2019
NRR E-mail Capture - Final - RAI Related to License Amendment Request (TSCR-182) for Proposed Changes to the Emergency Plan for Permanently Defueled Conditions at Duane Arnold Energy Center (DAEC) - L-2019-LLA-0075
ML19206A2182019-07-25025 July 2019
NRR E-mail Capture - LIC-109 Acceptance of Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-183) - Application to Revise Operating License and TS for Permanently Defueled Condition - EPID L-2019-LLA-0130
ML19183A0172019-06-26026 June 2019
NRR E-mail Capture - LIC-109 Acceptance of Request for Change in the BWRVIP Integrated Surveillance Program Test Schedule to Accommodate Early Closure of the Duane Arnold Energy Center - EPID L-2019-LRO-0042
ML19122A4882019-04-29029 April 2019
NRR E-mail Capture - LIC-109 Acceptance of License Amendment Request (TSCR-182) for Duane Arnold Energy Center (DAEC) - Proposed Changes to the Emergency Plan for Permanently Defueled Condition - EPID L-2019-LLA-0075
ML19086A3502019-03-27027 March 2019
NRR E-mail Capture - LIC-109 Acceptance of the Request for Exemption from 10 CFR 73.55(p)(1)(I) and 10 CFR 73.55(p)(1)(ii) for Duane Arnold Energy Center - EPID L-2019-LLE-0003
ML19064A2032019-03-0404 March 2019
NRR E-mail Capture - Results of LIC-109 Acceptance Review - Duane Arnold Energy Center - Request for Approval of Certified Fuel Handler Training Program, EPID L-2019-LLL-0003
ML18283B0522018-10-0909 October 2018
NRR E-mail Capture - Final Second Round - Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - LAR TSCR-166, Adoption of EAL Scheme Pursuant to NEI 99-01 - EPID L-2017-LLA-0420
ML18255A2922018-09-11011 September 2018
NRR E-mail Capture - Draft Second Round - Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - LAR TSCR-166, Adoption of EAL Scheme Pursuant to NEI 99-01 - EPID L-2017-LLA-0420
ML18166A2982018-06-15015 June 2018
NRR E-mail Capture - Draft Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - LAR TSCR-166, Adoption of EAL Scheme Pursuant to NEI 99-01 - EPID L-2017-LLA-0420
ML18108A3102018-04-12012 April 2018
NRR E-mail Capture - Audit at NextEra Headquarters, Juno Beach, Florida - April 24, 2018 Through April 26, 2018 - 50.69 LARs for Duane Arnold Energy Center (Daec), and Point Beach Nuclear Plant (Pbnp), Units 1 and 2 - EPIDs L-2017-LLA-0283/
ML18088A0102018-03-28028 March 2018
NRR E-mail Capture - Final RAI for Duane Arnold (DAEC) 5th-10 Year ISI (RR-05)
ML18037B0032018-02-0606 February 2018
NRR E-mail Capture - Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288
ML18025A2362018-01-24024 January 2018
NRR E-mail Capture - Resent - LIC-109 Acceptance - Duane Arnold LAR (TSCR-166) - Adoption of Emergency Action Level (EAL) Scheme Pursuant to NEI 99-01, Revision 6, Development of EALs for Non-Passive Reactors
ML18023A0752018-01-22022 January 2018
NRR E-mail Capture - LIC-109 Acceptance - Duane Arnold License Amendment Request (LAR) (TSCR-179) - Application to Add Technical Specification 3.2.3, Linear Heat Generation Rate - EPID: L-2017-LLA-0436
ML18019A0732018-01-18018 January 2018
NRR E-mail Capture - LIC-109 Acceptance - Duane Arnold License Amend Request (LAR)(TSCR-178) - Application to Reduce the Required Number of Operable Suppression Chamber-to-Drywell Vacuum Breakers
2024-05-01
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML24193A2432024-07-12012 July 2024
– Interim Audit Summary Report in Support of Review of License Amendment Requests Regarding Fleet Emergency Plan
ML22005A0862022-01-0404 January 2022
1-4-2022 Email Communication to Duane Arnold Regarding Its ISFSI Related Exemption Request on Supplemental Information Needed
ML21335A0712021-12-0101 December 2021
Request for Additional Information - Duane Arnold Energy Center ISFSI Only Emergency Plan
ML21335A0702021-12-0101 December 2021
Cover Letter to B. Coffey from K. Conway - Duane Arnold Energy Center RAI Re License Amendment Request for ISFSI Only Emergency Plan
ML21250A3002021-09-0808 September 2021
Defueled Physical Security Plan RAI Cover Letter
ML21006A4052021-01-0606 January 2021
NRR E-mail Capture - Final RAI - Duane Arnold - Post-Shutdown Decommissioning Activities Report
ML20316A0212020-11-10010 November 2020
NRR E-mail Capture - Final RAI - Duane Arnold - Duane Arnold Amendment for Proposed Defueled EP and EAL Scheme
ML20153A3772020-05-28028 May 2020
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center Quality Assurance Topical Report (FPL-3) - EPID L-2020-LLQ-0002)
ML20141L8132020-05-19019 May 2020
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center (DAEC) - Exemption Request for Security Training Requirements Due to COVID-19 Pandemic - EPID L-2020-LLE-0042 to 45, L-2020-LLE-0051
ML20133K0482020-05-14014 May 2020
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
ML20127H8662020-05-0505 May 2020
NRR E-mail Capture - Duane Arnold Energy Center (DAEC) - Request for Additional Information (RAI) - Request for Exemptions from 10 CFR 50.82(a)(8)(i)(A) and 1O CFR 50.75(h)(1)(iv) - EPID L-2020-LLE-0011
ML19280A0352019-10-0404 October 2019
NRR E-mail Capture - Final - RAI Related to License Amendment Request (TSCR-182) for Proposed Changes to the Emergency Plan for Permanently Defueled Conditions at Duane Arnold Energy Center (DAEC) - L-2019-LLA-0075
ML18283B0522018-10-0909 October 2018
NRR E-mail Capture - Final Second Round - Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - LAR TSCR-166, Adoption of EAL Scheme Pursuant to NEI 99-01 - EPID L-2017-LLA-0420
ML18255A2922018-09-11011 September 2018
NRR E-mail Capture - Draft Second Round - Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - LAR TSCR-166, Adoption of EAL Scheme Pursuant to NEI 99-01 - EPID L-2017-LLA-0420
ML18247A2002018-08-21021 August 2018
E-Mailed Request for Information for Duane Arnold, Dated 08/21/18 (DRS-M.Holmberg)
ML18166A2982018-06-15015 June 2018
NRR E-mail Capture - Draft Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - LAR TSCR-166, Adoption of EAL Scheme Pursuant to NEI 99-01 - EPID L-2017-LLA-0420
ML18088A0102018-03-28028 March 2018
NRR E-mail Capture - Final RAI for Duane Arnold (DAEC) 5th-10 Year ISI (RR-05)
ML18058A0522018-02-27027 February 2018
Enclosurequest for Additional Information (Letter: RAI Regarding Florida Power and Light/Nextera Decommissioning Funding Plan Updates for St. Lucie, Units 1 & 2; Seabrook Station; Duane Arnold Energy Center; and Point Beach, Units 1 and 2)
ML18037B0032018-02-0606 February 2018
NRR E-mail Capture - Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288
ML17347A8752017-12-12012 December 2017
NRR E-mail Capture - Second Round of Request for Additional Information - Duane Arnold Energy Center (DAEC) - LAR to Adopt TST-542, Revision 2, Reactor Pressure Vessel Water Inventory Control - CAC No. MF9829
ML17277A3652017-10-0404 October 2017
NRR E-mail Capture - Final Request for Additional Information - Duane Arnold - Application to Revise Technical Specifications to Adopt TSTF-542, Revision 2, Reactor Pressure Vessel Water Inventory Control - CAC No. MF9829
ML17240A0082017-08-25025 August 2017
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center (DAEC) - Fifth Ten Year Service Inspection Interval - Relief Request No. RR-04, Rev. 0 - Proposed Alternative for Seal Weld Procedure Qualification - MF937
ML17220A3332017-08-0808 August 2017
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center - Relief Request No. RR-03 - Alternative Requirements for Nozzle Inner Radius and Nozzle-To-Shell Welds - CAC No. MF9374
ML17159A7962017-06-0707 June 2017
17 Duane Arnold Energy Center - Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg)
ML17068A0632017-03-0808 March 2017
NRR E-mail Capture - Final - Request for Additional Information (RAI) - Duane Arnold Energy Center (DAEC) - Revision to Staff Augmentation Times in the Duane Arnold Energy Center (DAEC) Emergency Plan (Eplan) - MF8390
ML16333A4622016-11-28028 November 2016
NRR E-mail Capture - Final Request for Additional Information - Duane Arnold Energy Center - LAR - SFP Criticality - MF7486
ML16326A0092016-11-18018 November 2016
NRR E-mail Capture - Request for Additional Information Re. Nextera/Fpl LAR to Adopt TSTF-545 - CACs MF8203, MF8204, MF8208, and MF8209
ML16313A0742016-11-0808 November 2016
NextEra Audit Plan Nov 2016 (DAEC SFP Criticality LAR)
ML16075A0032016-03-14014 March 2016
NRR E-mail Capture - Request for Additional Information - Duane Arnold Energy Center - LAR to Reduce the Reactor Steam Dome Pressure Specified in the Technical Specifications 2.1.1, Reactor Core Safety Limits - MF6618
ML16074A3142016-03-14014 March 2016
NRR E-mail Capture - Second Round RAIs - Duane Arnold Energy Center - LAR (TSCR-143) to Extend Containment Leakage Test Frequency - MF6619
ML16021A0122016-01-21021 January 2016
Request for Additional Information by the Containment & Ventilation Branch and PRA Licensing Branch License Amendment Request - Extension of the 10 CFR 50 Appendix J Containment Type a & Type C Test Intervals
ML16022A0092016-01-21021 January 2016
NRR E-mail Capture - Request for Additional Information - LAR to Revise and Relocate Pressure and Temperature Limit Curves to a Pressure and Temperature Limits Report - MF6617
ML16014A6962016-01-0707 January 2016
E-Mail: Duane Arnold, MOD/50.59 Inspection Request for Information (Jsp)
ML16005A6082015-12-24024 December 2015
E-Mail: Duane Arnold Request for Information; December 24, 2015 (AAS)
ML15175A0652015-06-23023 June 2015
Ltr. 06/23/15 Duane Arnold Energy Center - Notification of an NRC Triennial Heat Sink Performance Inspection and Request for Information Inspection Report 05000331/2015003 (Axd)
ML14057A7562014-02-25025 February 2014
14 Duane Arnold CDBI Request for Information
ML14031A1462014-01-29029 January 2014
Update to NextEra Energy Duane Arnold, Llc'S Response to NRC Request for Additional Information Associated with Near-Term Task Force Recommendations
ML13323B4432013-11-26026 November 2013
Interim Staff Evaluation and Request for Additional Information Regarding the Overall Integrated Plan for Implementation of Order EA-12-051, Reliable Spent Fuel Pool Instrumentation
ML13255A1982013-09-16016 September 2013
Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)
ML13175A3932013-06-27027 June 2013
Request for Additional Information for Review Regarding License Amendment Request to Adopt National Fire Protection Association Standard 805
ML13154A5112013-06-0404 June 2013
Rai'S Following Ifib Analysis of NextEra Energy'S 2013 Decommissioning Funding Status Reports for Duane Arnold Energy Center and Point Beach Units 1 and 2
ML12107A0592012-04-11011 April 2012
NRR E-mail Capture - ME7246 - DAEC - Request for Additional Information (RAI) Relief Requests NDR-R003, R010, R011, R014, R015
ML12056A0502012-03-12012 March 2012
Enclosure 4 - Recommendation 2.3: Flooding
ML12056A0482012-03-12012 March 2012
Enclosure 2 - Recommendation 2.1: Flooding
ML12056A0512012-03-12012 March 2012
Enclosure 5 - Recommendation 9.3: Emergency Preparedness
ML12056A0492012-03-12012 March 2012
Enclosure 3 - Recommendation 2.3: Seismic
ML12056A0472012-03-12012 March 2012
Enclosure 1 - Recommendation 2.1: Seismic
ML1201203182012-01-17017 January 2012
Request for Additional Information Amendment to Change Emergency Action Levels
ML12011A0602012-01-0404 January 2012
NRR E-mail Capture - ME6508 - DAEC - Emergency Action Level (EAL) Changes
ML1132105812011-11-28028 November 2011
Request for Additional Information Regarding 60-Day Response to Bulletin 2011-01, Mitigating Strategies.
2024-07-12
[Table view] |
Text
1NRR-DMPSPEm ResourceFrom:Chawla, MaheshSent:Tuesday, February 06, 2018 9:18 AMTo:Davis, J.Michael (J.Michael.Davis@nexteraenergy.com); laura.swenzinski@nexteraenergy.com; Murrell, Bob (Bob.Murrell@nexteraenergy.com); 'Weaver, Tracy'; 'Probst, Jim'Cc:Catron, Steve (Steve.Catron@fpl.com); Kilby, Gary
Subject:
Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288
Dear Mr. Davis:
By letter dated September 5, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17248A284), NextEra Energy Duane Arnold, LLC (NextEra), the licensee for Duane Arnold Energy Center (DAEC), has requested an amendment to DAEC Technical Specifications (TS). The proposed amendment would revise the DAEC TS 3.5.1, "ECCS - Operating" to decrease the nitrogen supply requirement for the Automatic Depressurization System (ADS) in Surveillance Requirement (SR) 3.5.1.3 from 100 days to 30 days. The U.S. Nuclear Regulatory Commission staff has reviewed the licensee's submittal and determined that additional information is required in order to complete the review. REQUEST FOR ADDITIONAL INFORMATION (RAI) RAI - 1 Regulatory Basis: 10 CFR Part 50.36 Technical specifications," establishes the surveillance requirements related to the content of the TS. 10 CFR Part 50.46, "Acceptance criteria for emergency core cooling systems for light-water nuclear power reactors," requires an ECCS system that meets the criteria in 10 CFR 50.46(b) for cooling performance following a LOCA.
It was stated in Section 2.3 of the license amendment request (LAR),
Review of the DAEC accident analyses has shown that the worst-case DAEC accident scenario will require the use of ADS for 3 days post-accident. Reducing the duration of time from 100 days to 30 days still provides ample conservativism for the DAEC accident analyses and allows for an increase in accumulator margin.
Please provide the following additional information:
a) Describe the worst-case event, including the number of times the valves are required to cycle open over the 3 day post-accident period, and whether the ADS valves have adequate capacity available to cycle during that period. b) Confirm that the capacity to cycle the ADS valves open at least five times at design pressures will still remain available during the proposed 30 days period, as stated in NUREG-0737, "Clarification of TMI Action Plan Requirements," Item II.K.3.28, "Verify Qualifications of Accumulators on Automatic Depressurization System Valves." Please arrange a teleconference with the NRC staff to discuss the above information. Thanks 2Mahesh Chawla Project Manager Phone: 301-415-8371 Fax: 301-415-1222 mahesh.chawla@nrc.gov
Hearing Identifier: NRR_DMPS Email Number: 147 Mail Envelope Properties (MW2PR0901MB2442A1DEDE49AEFB1FA71527F1FD0)
Subject:
Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288 Sent Date: 2/6/2018 9:17:33 AM Received Date: 2/6/2018 9:17:00 AM From: Chawla, Mahesh Created By: Mahesh.Chawla@nrc.gov Recipients: "Catron, Steve (Steve.Catron@fpl.com)" <Steve.Catron@fpl.com> Tracking Status: None "Kilby, Gary" <Gary.Kilby@fpl.com> Tracking Status: None "Davis, J.Michael (J.Michael.Davis@nexteraenergy.com)" <J.Michael.Davis@nexteraenergy.com> Tracking Status: None "laura.swenzinski@nexteraenergy.com" <laura.swenzinski@nexteraenergy.com> Tracking Status: None "Murrell, Bob (Bob.Murrell@nexteraenergy.com)" <Bob.Murrell@nexteraenergy.com> Tracking Status: None
"'Weaver, Tracy'" <Tracy.Weaver@nexteraenergy.com> Tracking Status: None "'Probst, Jim'" <Jim.Probst@nexteraenergy.com> Tracking Status: None Post Office: MW2PR0901MB2442.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 2388 2/6/2018 9:17:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
Text
1NRR-DMPSPEm ResourceFrom:Chawla, MaheshSent:Tuesday, February 06, 2018 9:18 AMTo:Davis, J.Michael (J.Michael.Davis@nexteraenergy.com); laura.swenzinski@nexteraenergy.com; Murrell, Bob (Bob.Murrell@nexteraenergy.com); 'Weaver, Tracy'; 'Probst, Jim'Cc:Catron, Steve (Steve.Catron@fpl.com); Kilby, Gary
Subject:
Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288
Dear Mr. Davis:
By letter dated September 5, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17248A284), NextEra Energy Duane Arnold, LLC (NextEra), the licensee for Duane Arnold Energy Center (DAEC), has requested an amendment to DAEC Technical Specifications (TS). The proposed amendment would revise the DAEC TS 3.5.1, "ECCS - Operating" to decrease the nitrogen supply requirement for the Automatic Depressurization System (ADS) in Surveillance Requirement (SR) 3.5.1.3 from 100 days to 30 days. The U.S. Nuclear Regulatory Commission staff has reviewed the licensee's submittal and determined that additional information is required in order to complete the review. REQUEST FOR ADDITIONAL INFORMATION (RAI) RAI - 1 Regulatory Basis: 10 CFR Part 50.36 Technical specifications," establishes the surveillance requirements related to the content of the TS. 10 CFR Part 50.46, "Acceptance criteria for emergency core cooling systems for light-water nuclear power reactors," requires an ECCS system that meets the criteria in 10 CFR 50.46(b) for cooling performance following a LOCA.
It was stated in Section 2.3 of the license amendment request (LAR),
Review of the DAEC accident analyses has shown that the worst-case DAEC accident scenario will require the use of ADS for 3 days post-accident. Reducing the duration of time from 100 days to 30 days still provides ample conservativism for the DAEC accident analyses and allows for an increase in accumulator margin.
Please provide the following additional information:
a) Describe the worst-case event, including the number of times the valves are required to cycle open over the 3 day post-accident period, and whether the ADS valves have adequate capacity available to cycle during that period. b) Confirm that the capacity to cycle the ADS valves open at least five times at design pressures will still remain available during the proposed 30 days period, as stated in NUREG-0737, "Clarification of TMI Action Plan Requirements," Item II.K.3.28, "Verify Qualifications of Accumulators on Automatic Depressurization System Valves." Please arrange a teleconference with the NRC staff to discuss the above information. Thanks 2Mahesh Chawla Project Manager Phone: 301-415-8371 Fax: 301-415-1222 mahesh.chawla@nrc.gov
Hearing Identifier: NRR_DMPS Email Number: 147 Mail Envelope Properties (MW2PR0901MB2442A1DEDE49AEFB1FA71527F1FD0)
Subject:
Draft Request for Additional Information - Duane Arnold Energy Center (DAEC) - License Amendment Request (TSCR-170), Revision to Technical Specification 3.5.1, ECCS-Operating - EPID L-2017-LLA-0288 Sent Date: 2/6/2018 9:17:33 AM Received Date: 2/6/2018 9:17:00 AM From: Chawla, Mahesh Created By: Mahesh.Chawla@nrc.gov Recipients: "Catron, Steve (Steve.Catron@fpl.com)" <Steve.Catron@fpl.com> Tracking Status: None "Kilby, Gary" <Gary.Kilby@fpl.com> Tracking Status: None "Davis, J.Michael (J.Michael.Davis@nexteraenergy.com)" <J.Michael.Davis@nexteraenergy.com> Tracking Status: None "laura.swenzinski@nexteraenergy.com" <laura.swenzinski@nexteraenergy.com> Tracking Status: None "Murrell, Bob (Bob.Murrell@nexteraenergy.com)" <Bob.Murrell@nexteraenergy.com> Tracking Status: None
"'Weaver, Tracy'" <Tracy.Weaver@nexteraenergy.com> Tracking Status: None "'Probst, Jim'" <Jim.Probst@nexteraenergy.com> Tracking Status: None Post Office: MW2PR0901MB2442.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 2388 2/6/2018 9:17:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
