Letter Sequence Meeting |
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MONTHYEARML13284A0752013-10-0404 October 2013
Energy Northwest'S Request for NRC Assistance to Obtain Information from the Us Army Corps of Engineers (Usace) Related to Dam Failure Analysis
Project stage: Request
ML14080A1392014-03-10010 March 2014
Extension Request Regarding the Flooding Hazard Reevaluation Report Required by NRC Request for Information Pursuant to 10 CFR 50.54(F) Regarding Recommendation 2.1, Flooding, of the Near-Term Task Force Review of Insights.
Project stage: Request
ML14098A1412014-05-21021 May 2014
Relaxation of Response Due Date Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Review of the Insights from the Fukushima Dai-Ichi Accident
Project stage: Approval
ML14149A1012014-06-0202 June 2014
Notice of Forthcoming Closed Meeting to Discuss Dam Failure Analysis for Columbia Generating Station
Project stage: Request
ML14168A0452014-07-0808 July 2014
Summary of 6/10/14 Closed Meeting Between U.S. Army Corps of Engineers, U.S. Dept of Interior Bureau of Reclamation, and Energy Northwest to Discuss Flooding Analysis for Columbia Generating Station
Project stage: Meeting
ML16337A1092016-12-0707 December 2016
Interim Staff Response to Reevaluated Flood Hazards Submitted in Response to 10 CFR 50.54(f) Information Request; Flood-Causing Mechanism Reevaluation
Project stage: Other
2014-05-21
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Category:Meeting Summary
MONTHYEARML23297A2642023-11-0606 November 2023
October 5, 2023, Summary of Teleconference with Energy Northwest Regarding Proposed License Amendment Request to Revise the Emergency Plan for Columbia Generating Station
ML23156A2822023-06-0505 June 2023
Summary of Meeting with Q & a Session to Discuss the 2022 Annual Assessment of Safety Performance at CGS
ML22147A0932022-06-0606 June 2022
2021 Annual Assessment Public Meeting Summary
ML22067A1832022-03-10010 March 2022
Summary of Energy Northwest Regulatory Conference Columbia Generating Station, Airborne Radioactivity Event Resulting in Preliminary White Finding, March 1, 2022
ML21321A0422021-12-13013 December 2021
Summary of October 22, 2021, Teleconference Meeting with Energy Northwest Regarding Proposed License Amendment Requests to Adopt Technical Specifications Task Force (TSTF)-505, and 10 CFR 50.69 Categorization Program
ML21140A3892021-05-24024 May 2021
Riv Column 1 EOC 2020 Public Meeting Summary
ML21112A3512021-05-0303 May 2021
Summary of March 31, 2021, Pre-Application Teleconference with Energy Northwest to Discuss a Planned LAR Deletion of Certain License Conditions Relating to License Renewal Commitments for Columbia Generating Station
ML20322A0362020-11-19019 November 2020
Summary of October 19, 2020, Presubmittal Teleconference with Energy Northwest Regarding Proposed COVID-19 Related Biennial Emergency Preparedness Exercise Exemption Request for Columbia Generating Station
ML20314A0462020-11-0909 November 2020
Summary of November 4, 2020, NRC-NMFS Teleconference on Columbia Entrainment Study
ML20189A2832020-07-0707 July 2020
Summary of Region IV Annual Assessment Public Meeting
ML20101L5352020-04-14014 April 2020
Summary of April 6, 2020, Presubmittal Teleconference Meeting with Energy Northwest, to Discuss a Technical Specification Change License Amendment Request for the Columbia Generating Station
ML19030A2152019-02-12012 February 2019
1/24/19, Summary of Presubmittal Teleconference Meeting with Energy Northwest, to Discuss a Shield Wall Deferral License Amendment Request for the Columbia Generating Station
ML19030A3192019-02-12012 February 2019
1/17/2019, Summary of Presubmittal Meeting with Energy Northwest, to Discuss an Emergency Control Room Chiller License Amendment Request at Columbia Generating Station
ML18354B0992019-01-0303 January 2019
Summary of Pre-Submittal Meeting with Energy Northwest, to Discuss an Emergency Control Room Chiller License Amendment Request for the Columbia Generating Station
ML16266A3712016-09-29029 September 2016
Summary of Public Meeting with Energy Northwest to Discuss Upcoming License Amendment Request Regarding Change in Completion Time for Residual Heat Removal Pump a Repair for Columbia Generating Station
ML16167A4602016-08-23023 August 2016
Summary of Closed Meeting with Representatives of the Us Army Corps of Engineers, Bureau of Reclamation, and Energy Northwest to Discuss the Flood Analysis Associated with Columbia Generating Station
ML16193A0162016-07-14014 July 2016
Summary of 6/30/16 Prelicensing Meeting with Energy Northwest to Discuss License Amendment Request to Revise Emergency Action Levels Based on Nuclear Energy Institute (NEI) 99-01, Revision 6 at Columbia Generating Station
ML16138A3762016-05-25025 May 2016
Summary of 5/3/2016 Prelicensing Meeting with Energy Northwest to Discuss License Amendment Request Regarding Emergency Control Room Chiller System at Columbia Generating Station
ML16138A3292016-05-24024 May 2016
Summary of 5/2/2016 Prelicensing Meeting with Energy Northwest to Discuss Measurement Uncertainty Recapture Power Uprate License Amendment Request at Columbia Generating Station
ML16126A4822016-05-17017 May 2016
Summary of Prelicensing Meeting with Energy Northwest to Discuss License Amendment Request Concerning Portional Reclassification of Reactor Water Cleanup System at Columbia Generating Station
ML16138A1682016-05-0202 May 2016
Licensee Presentation Regarding Mur Power Uprate for Columbia Generating Station, Pending LAR
ML15187A4442015-07-0606 July 2015
Summary of a Regulatory Conference to Discuss the Safety Significance of a Columbia Finding Emergency Plan Implementing Procedures Did Not Implement Some Protective Action Recommendations Required by the Emergency Plan
ML15173A2732015-06-30030 June 2015
Summary of June 4, 2015, Category 1 Public Meeting with Energy Northwest to Discussion Columbia Generating Station Seismic Hazard Reevaluation Associated with Implementation of Japan Lessons-Learned Near-Term Task Force Recommendation 2.1,
ML15069A5162015-03-17017 March 2015
2/24/2014 Summary of Presubmittal Meeting with Energy Northwest to Discuss Relief Request for Radwaste Cleanup Piping for Columbia Generating Station
ML14168A0452014-07-0808 July 2014
Summary of 6/10/14 Closed Meeting Between U.S. Army Corps of Engineers, U.S. Dept of Interior Bureau of Reclamation, and Energy Northwest to Discuss Flooding Analysis for Columbia Generating Station
ML13339B1452013-12-0505 December 2013
Meeting Summary for Public Meeting with Energy Northwest Regarding Columbia Generating Station
ML12306A3332012-11-16016 November 2012
Summary of 10/18/12 Pre-licensing Meeting to Discuss Future License Amendment Request to Address Impacts of Remediation Activities Undertaken by Department of Energy in the Owner-Controlled Area at Columbia Generating Station
ML12293A0592012-10-18018 October 2012
Summary of Meeting with Energy Northwest Regarding Columbia Generating Station Performance Improvement Initiatives
ML12157A2722012-06-11011 June 2012
5/31/2012 Summary of Telephone Conference with Licensees Regarding Near Term Task Force Recommendation 2.1 Seismic Reevaluations - Diablo Canyon, 1 and 2, San Onofre, Units 2 and 3, Columbia Generating Station, and Palo Verde, Units 1, 2, a
ML1201201102012-01-12012 January 2012
Summary of Meeting with Energy Northwest Regarding Columbia Generating Station Performance Improvement Initiatives
ML11350A0562011-12-21021 December 2011
12/15/11, Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Metal Fatigue and Operating Experience Open Items in the Columbia License Renewal Safety Evaluation Repo
ML11336A1502011-12-12012 December 2011
Summary of Telephone Conference Call Held on November 14, 2011, Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Metal Fatigue Open Item in the Columbia License Renewal Safety Evaluation Report with Open I
ML11339A0872011-12-12012 December 2011
Summary of Telephone Conference Call Held on November 28, 2011, Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Upper Shelf Energy Open Item in the Columbia License Renewal Safety Evaluation Report with O
ML11339A0852011-12-12012 December 2011
November 8, 2011, Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Metal Fatigue Open Item in the Columbia License Renewal Safety Evaluation Report with Open Items
ML11249A0132011-11-21021 November 2011
08/29/2011-Summary of Tele Conf Call Between the USNRC and Energy Northwest, Concerning the Response to the Request for Additional Information Pertaining to the Columbia Generating Station, License Renewal Application
ML11311A2662011-11-10010 November 2011
Summary of Tele Conf Call Held on 11/2/11, Between the USNRC and Energy Northwest, Concerning the Core Plate Hold-Down Bolts Open Item in the Columbia License Renewal Safety Evaluation with Open Items
ML11305A1762011-11-0303 November 2011
Summary of Tele Conf Call Held on 10/27/11, Between the USNRC and Energy Northwest, Concerning the Metal Fatigue Open Item in the Columbia License Renewal Safety Evaluation with Open Items
ML11291A0792011-11-0101 November 2011
09/27/2011 Summary of Public Meetings Conducted to Discuss the Dseis Related to the Review of the Columbia Generating Station License Renewal Application (Tac No. ME3121)
ML11273A0012011-10-0404 October 2011
Summary of Teleconf Call Held on Sept. 28, 2011, Between the USNRC and Energy Northwest, Concerning the Draft Request for Additional Information Pertaining to the Columbia Generating Station, License Renewal Application
ML11273A0662011-10-0404 October 2011
Summary of the Telephone Conference Call Held on September 29, 2011, Concerning the Inspection Report Pertaining to the Columbia Generating Station, License Renewal Application
ML11256A3002011-09-23023 September 2011
Summary of Telephone Conference Call Held on September 12, 2011, Concerning the Draft Request for Additional Information Pertaining to the Columbia Generating Station, License Renewal Application
ML11238A1582011-09-14014 September 2011
8/25/11 - Summary of Telephone Conference Call Between NRC and Energy Northwest Concerning Drais Pertaining to the SAMA Review of the Columbia Generating Station License Renewal Application
ML11250A0152011-09-0808 September 2011
Summary of Tele Conf Call Held on August 22, 2011, Btw the USNRC and Energy Northwest, Concerning Topics Pertaining to the Columbia Generating Station, License Renewal Application
ML11223A3512011-08-23023 August 2011
Summary of Telephone Conference Call Held on August 11, 2011, Between the NRC and Energy Northwest, Concerning the Response to the Request for Additional Information Pertaining to the Columbia Generation Station, LRA
ML11230B0892011-08-23023 August 2011
August 17, 2011, Summary of Conference Call Held, Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Response to the Request for Additional Information Pertaining to the Columbia Generating Station, LRA
ML11216A2532011-08-11011 August 2011
August 3, 2011, Summary of Telephone Conference Call Held Between the NRC and Energy Northwest, Concerning the Response to the Request for Additional Information Pertaining to the Columbia Generating Station, LRA
ML11217A0222011-08-11011 August 2011
8/3-4/11, Summary of Telephone Conference Call Held Between Nuclear Regulatory Commission and Energy Northwest, Concerning the Response to the Request for Additional Information Pertaining to the Columbia Generating Station, LRA
ML11220A0102011-08-11011 August 2011
February 3, 2011, Summary of Telephone Conference Call Held Between NRC and Energy Northwest, Concerning the Responses to the RAI Pertaining to the Columbia Generating Station, LRA
ML1119900742011-08-0404 August 2011
Summary of Pre-Licensing Meeting with Energy Northwest to Discuss Proposed Power Range Neutron Monitoring System/Arts/Mellla License Amendment Request for Columbia Generating Station
ML11208B0492011-08-0202 August 2011
07/19/11 Summary of Telephone Conference Call Held Between the NRC and Energy Northwest, Concerning the Request for Additional Information Pertaining to the Columbia Generating Station, License Renewal Application (TAC No. Me3058)
2023-06-05
[Table view] |
Text
LICENSEE: Energy Northwest FACILITY: Columbia Generating Station
SUBJECT:
SUMMARY
OF JUNE 10,2014, MEETING BETWEEN REPRESENTATIVES OF THE U.S. ARMY CORPS OF ENGINEERS, U.S. DEPARTMENT OF THE INTERIOR BUREAU OF RECLAMATION, NUCLEAR REGULATORY COMMISSION, AND ENERGY NORTHWEST TO DISCUSS FLOODING ANALYSIS ASSOCIATED WITH COLUMBIA GENERATING STATION (TAC NO. MF3039)
On June 10, 2014, the U.S. Nuclear Regulatory Commission (NRC) staff had a closed meeting with the U.S. Army Corps of Engineers (USAGE), U.S. Department of the Interior Bureau of Reclamation, and Energy Northwest to discuss the flooding hazard reevaluation (FHR) for the Columbia Generating Station (CGS). The meeting was held at USAGE's offices in Seattle, Washington. The closed meeting notice dated June 2, 2014, can be found in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML14149A101. The participants in the meeting included the following individuals:
- NRC- George Wilson, Chris Cook, Brad Harvey, Joe Sebrosky, Ken See*, and Warren Sharp*
- USAGE- Teresa Reinig, Roger Kay, Lynn Daniels, Sara Marxen, Travis Ball and Tracy Schwarz
- U.S. Department of the Interior Bureau of Reclamation- Karen Weghorst and Chris Regilski*
- Energy Northwest contractors (Enercon)- Suraj Balan and Chris Pauley
- indicates individual participated via phone The purpose of the meeting was to discuss the portion of the FHR the USAGE is performing under contract to the NRC for CGS. By letter dated October 4, 2013 (ADAMS Accession No. ML13284A075), Energy Northwest requested NRC assistance in having the USAGE perform a dam failure analysis for the Columbia River watershed to support Energy Northwest's development of an FHR in response to the March 12, 2012, request for information (ADAMS Accession No. ML12073A348).
The USAGE presented the methodology it used to perform a screening analysis to identify potentially critical dams within the CGS watershed. The USAGE and NRC provided Energy
Northwest a high-level summary of the results of the screening analysis and the next steps in the process. The next steps include USAGE completing a detailed analysis of the potentially critical dams and the NRC transmitting the USAGE results to Energy Northwest.
The agenda for the June 10, 2014, meeting can be found in Enclosure 1. Two questions that Energy Northwest had regarding USAGE's dam failure analysis can be found in Enclosure 2.
Summary answers to the two questions provided at the meeting can also be found in .
The following action items were identified during the meeting:
- Based on a question from Energy Northwest, the NRC staff took an action to provide guidance on how Energy Northwest should consider the dam failure analysis results when responding to the Mitigating Strategies Order that was issued on March 12, 2012 (ADAMS Accession No. ML12054A735). Energy Northwest indicated that some of the strategies for flying equipment into nearby airports from the regional response center could be difficult to perform if the dam failure analysis led to flooding inundation levels that resulted in the nearby airports and roads to the site not being useable.
- Energy Northwest took an action to inform the NRC staff if it wanted hydrographs for locations other than at the CGS site. For example, some licensees have requested hydrographs for locations upstream of the nuclear power plant so that they can use the hydrographs as inputs into a two-dimensional model that will provide river velocities at multiple locations at the nuclear power plant site. The USAGE hydrographs are one-dimensional models that provide for only a main channel, left bank, and right bank velocity. Energy Northwest noted that based on the guidance it provided in response to the NRC action item above, it may also need hydrographs for the Tri-City's area downstream of the CGS site to assess whether or not there is an impact on its ability to take actions in accordance with its response to the Mitigating Strategies Order.
Subsequent to the meeting and in response to the above action item, the NRC staff informed Energy Northwest that the response to the Mitigating Strategies Order does not have to consider inundation levels provided in the USAGE FHR. The Order requires licensees to develop strategies to address current design/licensing basis external hazards. The NRC staff will evaluate whether to modify the licensing basis flood hazard required to be considered for the Order as part of the broader FHR activities. However, it would be prudent for licensees to consider appropriate modifications to their strategies, based on changes in the knowledge of the external hazards (such as, considering alternate means to get equipment to the site from the regional response centers if airports and roads are not available due to the results of a dam failure).
Subsequent to the meeting and in response to the above action item, Energy Northwest provided the locations for the hydrographs it is requesting from USAGE. The locations are provided in Enclosure 3 of this summary.
The USAGE was provided an opportunity to comment on this summary prior to its issuance and their comments were addressed in the final version of this summary.
Please direct any inquiries to the NRC CGS project manager, Andrea George, at 301-415-1081 or at Andrea.George@nrc.gov.
J sep M. Sebrosky, Senior ..........._._.,
azards Management Branch apan Lessons-Learned Division Office of Nuclear Reactor Regulation Docket No. 50-397
Enclosures:
- 1. Agenda
- 2. Energy Northwest Questions and Answers
- 3. Energy Northwest Requested Hydrograph Locations cc w/encls: Distribution via ListServ
m US Army Corps of Engineers NRC/USACE Scoping Meeting Columbia NPP June 10, 2014 USACE Seattle District
?U.S.NRC Uniu*d Statt:s Nucl~ar Regulator} Commission The Oxbow Building, Protecti11g P~opl~ and tin En virounumt 4735 East Marginal Way South, Seattle, WA 98134
Agenda Topics-----
TUESDAY MORNING JUNE 10 Licensee Meeting Arrival for Security Screening ALL 08:45 - 09:00 Introductions ALL 09:00 - 09:15
- Columbia River Watershed Management USAGE 09:15 - 09:45
- Hydrologic and Hydraulic Modeling Methods USAGE 09:45-10:15
- Licensee's questions and answers EN- 10:15- 11 :00 NW/NRC/USACE BREAK 11 :00- 11 :30 Continued discussions as necessary EN- 11 :30- 12:00 NW/NRC/USACE Enclosure 1
Energy Northwest's Questions on USACE's Dam Failure Analysis Following are two questions from Energy Northwest regarding United States Army Corps of Engineers (USACE) Dam Failure Analysis for the Columbia Generating Station (CGS) watershed.
Information: General storm probable maximum precipitation (PMP) (72-hour Storm), 100-year rainfall on probable maximum snowpack (24-hour Storm), Cool Season:
(November- February or March) PMP on 100-Year Snowpack (72-hour Storm) were the three flood causing precipitation alternatives evaluated in the CGS probable maximum flood (PMF) analysis (CE-02-13-18). Cool Season PMP on snow with 100-Year snowpack is the controlling PMP for CGS.
Question: Will the USACE dam failure analysis provide hydrographs for all season and cool season PMP including snowmelt alternatives?
Answer: Energy Northwest explained that CE-02-03-18 is a civil engineering calculation that is being performed by its contractor (Enercon) to capture Energy Northwest's portion of the CGS flooding hazard reevaluation (FHR). The NRC staff indicated that the USACE dam failure analysis will be performed in accordance with the guidance found in JLD-ISG-2013-01, "Guidance for Assessment of Flooding Hazards Due to Dam Failure," (ADAMS Accession No. ML13151A153) and ANSI/ANS-28-1992, "Determining Design Basis Flooding at Power Reactor Sites." The dam failure hydrographs for each applicable dam failure scenario will be provided in accordance with the ISG and ANSI guidance for the given failure mechanism assumed for the dam failure scenario (e.g., sunny day failure, hydrologic failure, and seismic failure).
Information: Flood levels on the Columbia River near the CGS site are influenced by backwater conditions created by Wallula Gap and McNary Dam . Backwater effects on the Columbia are further influenced by the contribution of PMF flows from the Yakima and Snake Rivers, both of which have their confluence with the Columbia River downstream of the CGS site. There were NO potentially critical dams based on Interim Staff Guidance Section 3.2.1 volume screening for the Yakima River drainage basin.
Question: Will the USACE dam failure analysis provide hydrologic, seismic, and "sunny day" dam failure hydrographs for the Columbia and Snake Rivers dam failure discharge?
Answer: The NRC staff noted that the USACE will use the screening guidance provided in the NRC ISG to identify potentially critical dams. Potentially critical dams will then undergo further detail analyses as described in the ISG. The USACE will utilize the ISG guidance and expert judgment to determine whether a hydrologic failure or a seismic failure analysis is appropriate to perform for each of the potentially critical dams. At a minimum, for dams that screen in for detailed dam breach analysis, Energy Northwest will be provided with the hydrographs for the "sunny day" failure mechanism . If the USACE analysis determines that hydrologic or seismic failures are plausible, then hydrographs for these failure scenarios will also be provided.
USACE will provide hydrographs on those rivers with dam failures and not on tributaries without dam failures .
Enclosure 2
Energy Northwest Requested Hydrograph Locations Requeoted Dam Fa!Ue Hyaog apn LOcaUon CoiUTOia RIVer 1 RequeotedDamFalkleHyaogapn LDcaUonS"'*e Rllf~
_... Requeoteo Dam FaiUe Hyaogapn LDcaUonYalt~ Rllf~
Note: Latitude and longitude of each point was provided in lieu of river miles.
Points 3 and 4 are on the Columbia River and would include the dam failure flows from Yakima River and Snake River. Points 5 and 6 are included to identify the contribution of Yakima River and Snake River to the overall dam failure flow.
Enclosure 3
The USACE was provided an opportunity to comment on this summary prior to its issuance and their comments were addressed in the final version of this summary.
Please direct any inquiries to the NRC CGS project manager, Andrea George, at 301-415-1081 or at Andrea.George@nrc.gov.
IRA/
Joseph M. Sebrosky, Senior Project Manager Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation Docket No. 50-397
Enclosures:
- 1. Agenda
- 2. Energy Northwest Questions and Answers
- 3. Energy Northwest Requested Hydrograph Locations cc w/encls: Distribution via ListServ DISTRIBUTION:
PUBLIC JNick, EDO RIV BHarvey, NRO DBradley, RIV LPL4-1 Reading CCook, NRO KSee, NRO AGeorge, NRR RidsNrrDoriLp14-1 Resource NTiruneh, NRO WSharp, NRO RidsNrrLAJBurkhardt Resource SFianders, NRO NTaylor, RIV RidsNrrPMColumbia Resource GWilson, NRR JGroom, RIV ADAMS A ccess1on Nos.: M ee f mg No t*1ce ML14149A101 Mee f mg S urn mary ML14168A045*v1a. ema1"I OFFICE NRR/DORL/LPLIV-1 /PM NRR/DORLILPL4-1 /LA NRO/DSEA/RHM1/BC*
NAME AGeorge JBurkhardt CCook DATE 7/7/14 6/17/14 7/8/14 OFFICE NRR/JLD/JHMB/BC NRR/JLD/JHMB/PM NAME MMitchell JSebrosky DATE 7/8/14 7/8/14 OFFICIAL RECORD COPY
