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| number = ML17340B025
| number = ML17340B025
| issue date = 12/06/2017
| issue date = 12/06/2017
| title = Grand Gulf, Unit 1 - Supplemental Letter to License Amendment Request to Incorporate Tornado Missile Risk Evaluator Into Licensing Basis
| title = Supplemental Letter to License Amendment Request to Incorporate Tornado Missile Risk Evaluator Into Licensing Basis
| author name = Larson E A
| author name = Larson E
| author affiliation = Entergy Operations, Inc
| author affiliation = Entergy Operations, Inc
| addressee name =  
| addressee name =  
Line 13: Line 13:
| document type = Letter
| document type = Letter
| page count = 4
| page count = 4
| project =
| stage = Supplement
}}
}}


=Text=
=Text=
{{#Wiki_filter:* ~Entergy GNR0-2017
{{#Wiki_filter:*~Entergy                                                                       Entergy Operations, Inc.
/00077 December 6, 2017 U.S. Nuclear Regulatory Commission . ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852 Entergy Operations, Inc. P.O. Box 756 Port Gibson, MS 39150 Eric A. Larson Site Vice President Grand Gulf Nuclear Station Tel. (601) 437-7500  
P.O. Box 756 Port Gibson, MS 39150 Eric A. Larson Site Vice President Grand Gulf Nuclear Station Tel. (601) 437-7500 GNR0-2017/00077 December 6, 2017 U.S. Nuclear Regulatory Commission .
ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852


==SUBJECT:==
==SUBJECT:==
Supplemental Letter to License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis Grand Gulf Nuclear Station, Unit 1
Supplemental Letter to License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis Grand Gulf Nuclear Station, Unit 1
* Docket No. 50-416 License No. NPF-29  
* Docket No. 50-416 License No. NPF-29


==REFERENCE:==
==REFERENCE:==
 
Grand Gulf Nuclear Station Letter GNR0-2017/0006.1, "License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis".
Grand Gulf Nuclear Station Letter GNR0-2017/0006.1, "License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis". Ladies and Gentlemen:
Ladies and Gentlemen:
The referenced letter submitted a license amendment request to incorporate the Tornado Missile Risk Evaluator methodology into the Grand Gulf licensing basis. This letter provides a supplemental change to the previously provided Updated Final Safety Analysis Report Markup, Table 3.5-8, page 5 of 6. Please replace the previously submitted page with the one provide in the attachment.
The referenced letter submitted a license amendment request to incorporate the Tornado Missile Risk Evaluator methodology into the Grand Gulf licensing basis.
This letter provides a supplemental change to the previously provided Updated Final Safety Analysis Report Markup, Table 3.5-8, page 5 of 6. Please replace the previously submitted page with the one provide in the attachment.
This letter contains no Regulatory Commitments.
This letter contains no Regulatory Commitments.
Should you have any questions concerning the content of this letter, please contact Douglas Neve, Manager Regulatory Assurance at 601-437-2103.
Should you have any questions concerning the content of this letter, please contact Douglas Neve, Manager Regulatory Assurance at 601-437-2103.
Sincerely, CGL-Eric A. Larson Site Vice President EAL/amh Attachments:  
Sincerely, CGL-Eric A. Larson Site Vice President EAL/amh Attachments:
: 1. Updated Final Safety Analysis Report Page Markup.
: 1. Updated Final Safety Analysis Report Page Markup.
GNR0-2017/00077 Page 2 of 2 cc: with Attachment Mr. Siva Lingam U.S. Nuclear Regulatory Commission Mail Stop OWFN 8 81 Rockville, MD 20852-2738 cc: without Attachments and Enclosure Mr. Kriss Kennedy U.S. Nuclear Regulatory Comm_ission Regional Administrator, Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 Dr. Mary Currier, M.D., M.P.H State Health Officer Mississippi Department of Health P.O. Box 1700 Jackson, MS 39215-1700 Email: mary.currier@msdh.ms.gov GNR0-2017/00077  
 
\ Grand Gulf Nuclear Station, Unit No. 1 Docket No. 50-416 I License No. NPF-29 License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis Attachment 1 Updated Final Safety Analysis Report Page Markup .J
GNR0-2017/00077 Page 2 of 2 cc: with Attachment Mr. Siva Lingam U.S. Nuclear Regulatory Commission Mail Stop OWFN 8 81 Rockville, MD 20852-2738 cc: without Attachments and Enclosure Mr. Kriss Kennedy U.S. Nuclear Regulatory Comm_ission Regional Administrator, Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 Dr. Mary Currier, M.D., M.P.H State Health Officer Mississippi Department of Health P.O. Box 1700 Jackson, MS 39215-1700 Email: mary.currier@msdh.ms.gov
: f. Elevator machine room exhaust air check damper with centerline El. 212'-4" 6. Diesel-generator Building a. Air exhaust louver with centerline at El. 163' -9" b. Air exhaust louvers with centerline at El. 162'-0" c. Air intake louvers with centerline at El. 159'-8" d. Diesel generator exhaust pipes above roof El. 172' -0" _e. Diesel generator fuel oil tank vent-top El. 173'-6" 7. Auxiliary Building a. RHR room blowout shafts above El. 185'-0" b. RHR pump room & RCIC room blowout shafts above El. 185' -0" c. Steam tunnel blowout shaft above El. 185' -0" d. Louver and door at El. 185'-0" e. Door at roof El. 185' -0" f. Main entrance door at El. 139' -0" g. Exit door at El. 139'-0" GGNS-UFSAR Figure 3.8-117) Exposed\ but shielded by the partially complete,d Unit 2 Containment shell located approximately 90 feet to the north (see_ Figure 3.8-117) Protected by adjacent Auxiliary Bldg. wall & generator bldg. with roof El. 172'-0" (see Figure 9.5-21) Protected by adjacent Auxiliary Bldg. wall & generator bldg. with roof El. 172'-0" (see Figure 9.5-21) Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 9.5-21) See subsection 9.5.8.3 Exposed but shielded from horizontal missiles by concrete parapet with top elevation of 17 4' -0" Protected by a 2' -0" thick reinforced concrete barrier structure (see Figure 3.8-81) Protected by a 2'-0" thick reinforced concrete barrier structure (see Figure 3.8-81) Protected by a 2'-0" thick reinforced concrete barrier structure (see Figure 3.8-81) Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 3.8-81) Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 3.8-81) Protected by a 2'-0" thick reinforced concrete barrier wall & 2'-0" thick top slab (see Figure 3.8-79) Protected by a 2'-0" thick reinforced concrete barrier wall & 2'-0" thick top slab (see Figure 3.8-79) 5}}
 
GNR0-2017/00077
                          \
Grand Gulf Nuclear Station, Unit No. 1 Docket No. 50-416 I License No. NPF-29 License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis Attachment 1 Updated Final Safety Analysis Report Page Markup
                            .J
 
GGNS-UFSAR Figure 3.8-117)
: f. Elevator machine room exhaust      Exposed\ but shielded by the partially complete,d Unit 2 air check damper with centerline  Containment shell located approximately 90 feet to the El. 212'-4"                        north (see_ Figure 3.8-117)
: 6. Diesel-generator Building
: a. Air exhaust louver with centerline Protected by adjacent Auxiliary Bldg. wall & diesel-at El. 163'-9"                    generator bldg. with roof El. 172'-0" (see Figure 9.5-21)
: b. Air exhaust louvers with          Protected by adjacent Auxiliary Bldg. wall & diesel-centerline at El. 162'-0"        generator bldg. with roof El. 172'-0" (see Figure 9.5-21)
: c. Air intake louvers with centerline Protected by a 2'-0" thick reinforced concrete barrier at El. 159'-8"                    wall (see Figure 9.5-21)
: d. Diesel generator exhaust pipes    See subsection 9.5.8.3 above roof El. 172'-0"
_e. Diesel generator fuel oil tank      Exposed but shielded from horizontal missiles by vent-top El. 173'-6"              concrete parapet with top elevation of 174' -0"
: 7. Auxiliary Building
: a. RHR room blowout shafts above      Protected by a 2' -0" thick reinforced concrete barrier El. 185'-0"                      structure (see Figure 3.8-81)
: b. RHR pump room & RCIC room          Protected by a 2'-0" thick reinforced concrete barrier blowout shafts above El. 185'-0"  structure (see Figure 3.8-81)
: c. Steam tunnel blowout shaft        Protected by a 2'-0" thick reinforced concrete barrier above El. 185'-0"                structure (see Figure 3.8-81)
: d. Louver and door at El. 185'-0"    Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 3.8-81)
: e. Door at roof El. 185'-0"          Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 3.8-81)
: f. Main entrance door at El. 139'-0"  Protected by a 2'-0" thick reinforced concrete barrier wall & 2'-0" thick top slab (see Figure 3.8-79)
: g. Exit door at El. 139'-0"          Protected by a 2'-0" thick reinforced concrete barrier wall & 2'-0" thick top slab (see Figure 3.8-79) 5}}

Latest revision as of 10:55, 22 October 2019

Supplemental Letter to License Amendment Request to Incorporate Tornado Missile Risk Evaluator Into Licensing Basis
ML17340B025
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 12/06/2017
From: Emily Larson
Entergy Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
GNR0-2017/00077
Download: ML17340B025 (4)
v • d • e


Text

  • ~Entergy Entergy Operations, Inc.

P.O. Box 756 Port Gibson, MS 39150 Eric A. Larson Site Vice President Grand Gulf Nuclear Station Tel. (601) 437-7500 GNR0-2017/00077 December 6, 2017 U.S. Nuclear Regulatory Commission .

ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

SUBJECT:

Supplemental Letter to License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis Grand Gulf Nuclear Station, Unit 1

  • Docket No. 50-416 License No. NPF-29

REFERENCE:

Grand Gulf Nuclear Station Letter GNR0-2017/0006.1, "License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis".

Ladies and Gentlemen:

The referenced letter submitted a license amendment request to incorporate the Tornado Missile Risk Evaluator methodology into the Grand Gulf licensing basis.

This letter provides a supplemental change to the previously provided Updated Final Safety Analysis Report Markup, Table 3.5-8, page 5 of 6. Please replace the previously submitted page with the one provide in the attachment.

This letter contains no Regulatory Commitments.

Should you have any questions concerning the content of this letter, please contact Douglas Neve, Manager Regulatory Assurance at 601-437-2103.

Sincerely, CGL-Eric A. Larson Site Vice President EAL/amh Attachments:

1. Updated Final Safety Analysis Report Page Markup.

GNR0-2017/00077 Page 2 of 2 cc: with Attachment Mr. Siva Lingam U.S. Nuclear Regulatory Commission Mail Stop OWFN 8 81 Rockville, MD 20852-2738 cc: without Attachments and Enclosure Mr. Kriss Kennedy U.S. Nuclear Regulatory Comm_ission Regional Administrator, Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 Dr. Mary Currier, M.D., M.P.H State Health Officer Mississippi Department of Health P.O. Box 1700 Jackson, MS 39215-1700 Email: mary.currier@msdh.ms.gov

GNR0-2017/00077

\

Grand Gulf Nuclear Station, Unit No. 1 Docket No. 50-416 I License No. NPF-29 License Amendment Request to Incorporate Tornado Missile Risk Evaluator into Licensing Basis Attachment 1 Updated Final Safety Analysis Report Page Markup

.J

GGNS-UFSAR Figure 3.8-117)

f. Elevator machine room exhaust Exposed\ but shielded by the partially complete,d Unit 2 air check damper with centerline Containment shell located approximately 90 feet to the El. 212'-4" north (see_ Figure 3.8-117)
6. Diesel-generator Building
a. Air exhaust louver with centerline Protected by adjacent Auxiliary Bldg. wall & diesel-at El. 163'-9" generator bldg. with roof El. 172'-0" (see Figure 9.5-21)
b. Air exhaust louvers with Protected by adjacent Auxiliary Bldg. wall & diesel-centerline at El. 162'-0" generator bldg. with roof El. 172'-0" (see Figure 9.5-21)
c. Air intake louvers with centerline Protected by a 2'-0" thick reinforced concrete barrier at El. 159'-8" wall (see Figure 9.5-21)
d. Diesel generator exhaust pipes See subsection 9.5.8.3 above roof El. 172'-0"

_e. Diesel generator fuel oil tank Exposed but shielded from horizontal missiles by vent-top El. 173'-6" concrete parapet with top elevation of 174' -0"

7. Auxiliary Building
a. RHR room blowout shafts above Protected by a 2' -0" thick reinforced concrete barrier El. 185'-0" structure (see Figure 3.8-81)
b. RHR pump room & RCIC room Protected by a 2'-0" thick reinforced concrete barrier blowout shafts above El. 185'-0" structure (see Figure 3.8-81)
c. Steam tunnel blowout shaft Protected by a 2'-0" thick reinforced concrete barrier above El. 185'-0" structure (see Figure 3.8-81)
d. Louver and door at El. 185'-0" Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 3.8-81)
e. Door at roof El. 185'-0" Protected by a 2'-0" thick reinforced concrete barrier wall (see Figure 3.8-81)
f. Main entrance door at El. 139'-0" Protected by a 2'-0" thick reinforced concrete barrier wall & 2'-0" thick top slab (see Figure 3.8-79)
g. Exit door at El. 139'-0" Protected by a 2'-0" thick reinforced concrete barrier wall & 2'-0" thick top slab (see Figure 3.8-79) 5
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