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| number = ML16279A479
| number = ML16279A479
| issue date = 09/29/2016
| issue date = 09/29/2016
| title = Prairie Island Nuclear Generating Plant Flood Hazard Reevaluation Report - Response to Requested Information (CAC Nos. MF7710 and MF7711)
| title = Flood Hazard Reevaluation Report - Response to Requested Information
| author name = Gunderson L
| author name = Gunderson L
| author affiliation = Northern States Power Company, Minnesota, Xcel Energy
| author affiliation = Northern States Power Company, Minnesota, Xcel Energy
| addressee name = Gibson L K
| addressee name = Gibson L
| addressee affiliation = NRC/NRR/JLD
| addressee affiliation = NRC/NRR/JLD
| docket = 05000282, 05000306
| docket = 05000282, 05000306
| license number =  
| license number =  
| contact person = Gibson L K, NRR/JLD, 415-1056
| contact person = Gibson L, NRR/JLD, 415-1056
| case reference number = CAC MF7710, CAC MF7711
| case reference number = CAC MF7710, CAC MF7711
| package number = ML16279A476
| package number = ML16279A476
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=Text=
=Text=
{{#Wiki_filter:From: Gunderson, Lynne To: Gibson, Lauren Cc: Eckholt, Gene F.
{{#Wiki_filter:From:             Gunderson, Lynne To:               Gibson, Lauren Cc:               Eckholt, Gene F.; Rohrer, Rick J.; Fields, John S.
; Rohrer, Rick J.
; Fields, John S.


==Subject:==
==Subject:==
[External_Sender] Prairie Island Nuclear Generating Plant Flood Hazard Reevaluation Report - Response to Requested Information (CAC Nos. MF7710 and MF7711)
[External_Sender] Prairie Island Nuclear Generating Plant Flood Hazard Reevaluation Report - Response to Requested Information (CAC Nos. MF7710 and MF7711)
Date: Thursday, September 29, 2016 5:04:58 PM Ms. Gibson,
Date:             Thursday, September 29, 2016 5:04:58 PM Ms. Gibson, On August 18, 2016, a joint audit call was held between the NRC and Northern States Power Company, a Minnesota corporation (NSPM), d/b/a Xcel Energy, related to the Prairie Island Nuclear Generating Plants (PINGP) Flood Hazard Reevaluation Report (FHRR)
 
(dated May 12, 2016; ADAMS Accession No. ML16133A030). This audit call was held in accordance with the audit plan (ADAMS Accession No. ML16152A126). As a result of the call, the NRC requested on August 30, 2016, that information be submitted on the docket by October 28, 2016. The information request is repeated below along with a response to the request.
On August 18, 2016, a joint audit call was held between the NRC and Northern States
Requested Information for Prairie Island:
 
* Local Intense Precipitation - General request related to HEC-RAS modeling The schematic diagram (Figure 5.3.2-2 in LIP calculation package) shows a general overview of the HEC-RAS modeling structure. However, detailed information about where the river reaches receive their water from and what are the corresponding drainage basins is missing. Review of the model shows that there is a total of 32 subbasins, 10 river reaches, and 18 storage areas, which should have more reach boundary conditions (including the missing data for subbasin #205), storage area boundary conditions, and connections between these features. However, none of these conditions were specified or discussed in the FHRR or the LIP calculation package.
Power Company, a Minnesota corporation (NSPM), d/b/a Xcel Energy, related to the Prairie
Please provide revised figure(s) to include all critical door opening locations, river reaches, and cross section associated with each of the critical door locations using appropriate annotations and legends. Please send as a .jpeg or .tiff attachment to an e-mail. The e-mail and attachment will be docketed.
 
Northern States Power - Minnesota (NSPM) Response:
Island Nuclear Generating Plant's (PINGP) Flood Hazard Reevaluation Report (FHRR)
Three (3) figures are attached, which provide the location of the critical door opening locations, river reaches, and cross section associated with each of the critical door locations including appropriate annotations and legends. The figures for this response reflect corrections performed in Calculation 180461.51.1005, Revision 1, which is discussed in a separate submittal supplementing the PINGP FHRR. The calculation revision is provided to the NRC Staff for audit on DVD.
(dated May 12, 2016; ADAMS Accession No. ML16133A030). This audit call was held in
 
accordance with the audit plan (ADAMS Accession No. ML16152A126). As a result of the
 
call, the NRC requested on August 30, 2016, that information be submitted on the docket
 
by October 28, 2016. The information request is repeated below along with a response to
 
the request.
 
Requested Information for Prairie Island
: ~        Local Intense Precipitation - General request related to HEC
-RAS modeling The schematic diagram (Figure 5.3.2-2 in LIP calculation package) shows a general
 
overview of the HEC-RAS modeling structure. However, detailed information about
 
where the river reaches receive their water from and what are the corresponding
 
drainage basins is missing. Review of the model shows that there is a total of 32
 
subbasins, 10 river reaches, and 18 storage areas, which should have more reach
 
boundary conditions (including the missing data for subbasin #205), storage area
 
boundary conditions, and connections between these features. However, none of these
 
conditions were specified or discussed in the FHRR or the LIP calculation package.
Please provide revised figure(s) to include all critical door opening locations, river
 
reaches, and cross section associated with each of the critical door locations using
 
appropriate annotations and legends.
Please send as a .jpeg or .tiff attachment to an e
-
mail. The e-mail and attachment will be docketed.
 
Northern States Power - Minnesota (NSPM) Response
:
Three (3) figures are attached, which provide the location of the critical door opening
 
locations, river reaches, and cross section associated with each of the critical door
 
locations including appropriate annotations and legends. The figures for this response
 
reflect corrections performed in Calculation 180461.51.1005, Revision 1, which is
 
discussed in a separate submittal supplementing the PINGP FHRR. The calculation
 
revision is provided to the NRC Staff for audit on DVD.
 
Please contact me if you have any questions.
Please contact me if you have any questions.
Thank you, Lynne Gunderson Xcel Energy l Responsible By Nature


Thank you, Lynne Gunderson Xcel Energy l Responsible By Nature Fukushima Response Project - Licensing Prairie Island Nuclear Generating Plant 1717 Wakonade Drive East, NPD
Fukushima Response Project - Licensing Prairie Island Nuclear Generating Plant 1717 Wakonade Drive East, NPD Welch, MN 55089 P: 651.267.7421 C:612.396.0173}}
 
Welch, MN 55089
 
P: 651.267.7421 C:612.396.0173}}

Latest revision as of 23:02, 18 March 2020

Flood Hazard Reevaluation Report - Response to Requested Information
ML16279A479
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 09/29/2016
From: Gunderson L
Northern States Power Company, Minnesota, Xcel Energy
To: Lauren Gibson
Japan Lessons-Learned Division
Gibson L, NRR/JLD, 415-1056
Shared Package
ML16279A476 List:
References
CAC MF7710, CAC MF7711
Download: ML16279A479 (2)
v • d • e


Text

From: Gunderson, Lynne To: Gibson, Lauren Cc: Eckholt, Gene F.; Rohrer, Rick J.; Fields, John S.

Subject:

[External_Sender] Prairie Island Nuclear Generating Plant Flood Hazard Reevaluation Report - Response to Requested Information (CAC Nos. MF7710 and MF7711)

Date: Thursday, September 29, 2016 5:04:58 PM Ms. Gibson, On August 18, 2016, a joint audit call was held between the NRC and Northern States Power Company, a Minnesota corporation (NSPM), d/b/a Xcel Energy, related to the Prairie Island Nuclear Generating Plants (PINGP) Flood Hazard Reevaluation Report (FHRR)

(dated May 12, 2016; ADAMS Accession No. ML16133A030). This audit call was held in accordance with the audit plan (ADAMS Accession No. ML16152A126). As a result of the call, the NRC requested on August 30, 2016, that information be submitted on the docket by October 28, 2016. The information request is repeated below along with a response to the request.

Requested Information for Prairie Island:

  • Local Intense Precipitation - General request related to HEC-RAS modeling The schematic diagram (Figure 5.3.2-2 in LIP calculation package) shows a general overview of the HEC-RAS modeling structure. However, detailed information about where the river reaches receive their water from and what are the corresponding drainage basins is missing. Review of the model shows that there is a total of 32 subbasins, 10 river reaches, and 18 storage areas, which should have more reach boundary conditions (including the missing data for subbasin #205), storage area boundary conditions, and connections between these features. However, none of these conditions were specified or discussed in the FHRR or the LIP calculation package.

Please provide revised figure(s) to include all critical door opening locations, river reaches, and cross section associated with each of the critical door locations using appropriate annotations and legends. Please send as a .jpeg or .tiff attachment to an e-mail. The e-mail and attachment will be docketed.

Northern States Power - Minnesota (NSPM) Response:

Three (3) figures are attached, which provide the location of the critical door opening locations, river reaches, and cross section associated with each of the critical door locations including appropriate annotations and legends. The figures for this response reflect corrections performed in Calculation 180461.51.1005, Revision 1, which is discussed in a separate submittal supplementing the PINGP FHRR. The calculation revision is provided to the NRC Staff for audit on DVD.

Please contact me if you have any questions.

Thank you, Lynne Gunderson Xcel Energy l Responsible By Nature

Fukushima Response Project - Licensing Prairie Island Nuclear Generating Plant 1717 Wakonade Drive East, NPD Welch, MN 55089 P: 651.267.7421 C:612.396.0173

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