Management of Spent Fuel Pool Criticality

Pressurized Water Reactors

June 21, 2013 update

PWR Region 1 (fresher fuel) Region 2 (older fuel) License Amendment 

Reference

Date updated 

Arkansas Nuclear One Unit 1 Storage patterns/burnup + 444 ppm [B] Metamic inserts in "Region 3" + Storage 

patterns/burnup + 444 ppm [B]

LA #228 01/26/2007 

ML070160038 

June 21, 2013

Arkansas Nuclear One Unit 2 Metamic + 452 ppm [B] Storage patterns/burnup + 452 ppm [B] LA #273 09/28/2007 

ML072620412

June 21, 2013

Beaver Valley Unit 1 Boral Boral LA #178 11/01/1993

ML003767816

June 21, 2013

Beaver Valley Unit 2 Storage patterns/burnup + 450 ppm [B] 

Currently installing Metamic

Storage patterns/burnup + 450 ppm [B]

Currently installing Metamic

LA #165 03/27/2008

ML080730476 (storage patterns)

LA #173 04/29/2011

ML110890844 (Metamic)

June 21, 2013

Braidwood Unit 1 Boral + burnup Boral + storage patterns/burnup LA #105 03/01/2000 

ML003692088

June 21, 2013

Braidwood Unit 2 Boral + burnup Boral + storage patterns/burnup LA #105 03/01/2000 

ML003692088

June 21, 2013

Byron Unit 1 Boral + burnup Boral + storage patterns/burnup LA #112 03/01/2000 

ML003692088

June 21, 2013

Byron Unit 2 Boral + burnup Boral + storage patterns/burnup LA #112 03/01/2000 

ML003692088

June 21, 2013

Callaway Boral + storage patterns Boral + storage patterns/burnup + IFBA LA #129 01/19/1999

ML021640249

June 21, 2013

Calvert Cliffs Unit 1 Carboundum + 350 ppm [B] Carborundum + 350 ppm [B] LA # 267 06/03/2004

ML041040129

June 21, 2013

Calvert Cliffs Unit 2 Storage patterns/burnup + 350 ppm [B] Storage patterns/burnup + 350 ppm [B] LA # 246 01/27/2005

ML050140262

June 21, 2013

Catawba Unit 1 Flux trap racks + 200 ppm [B] Flux trap racks + 200 ppm [B] LA #233 09/27/2006

ML062540237

June 21, 2013

Catawba Unit 2 Flux trap racks + 200 ppm [B] flux trap racks + 200 ppm [B] LA #229 09/27/2006

ML062540237

June 21, 2013

Comanche Peak Unit 1 Boral + 700 ppm [B] 9" spacing and storage patterns/burnup + 

800 ppm [B]

LA #87 10/02/2001

ML012560143

June 21, 2013

Means to meet subcriticality requirements
Comanche Peak Unit 2 Boral + 700 ppm [B] 9" spacing and storage patterns/burnup + 

800 ppm [B]

LA #87 10/02/2001

ML012560143

June 21, 2013

Crystal River Unit 3

Pool A

Carborundum +storage patterns/burnup Carborundum +storage patterns/burnup LA #193 09/13/2000

ML003752886 (storage patterns/burnup)

LA #227 10/25/2007

ML072910317 (revise storage 

patterns/burnup)

June 21, 2013

Crystal River Unit 3

Pool B

Boral + storage patterns Boral + burnup LA #193 09/13/2000

ML003752886 (Boral)

La #227 10/25/2007

ML072910317 (revise storage 

patterns/burnup)

June 21, 2013

Davis Besse Boral + storage patterns/burnup + flux trap Boral + storage patterns/burnup LA #247 10/19/2001

ML012910442

June 21, 2013

Diablo Canyon Unit 1 Storage Patterns/burnup + IFBA rods + 806 

ppm [B]

Storage Patterns/burnup + IFBA rods LA #154 09/25/2002

ML022610080

LA #183 11/21/2005

ML052970270 (Cask pit)

June 21, 2013

Diablo Canyon Unit 2 Storage Patterns/burnup + IFBA rods + 806 

ppm [B]

Storage Patterns/burnup + IFBA rods LA #154 09/25/2002

ML022610080

LA #185 11/21/2005

ML052970270 (Cask pit)

June 21, 2013

Donald C. Cook Units 1 + 2 

(shared pool)

Boral + storage patterns/burnup Boral + storage patterns/burnup LA #169 and #152 01/14/1993

ML021060153 (Boral)

LA #311 and #293 10/08/2009

ML092540310 (storage patterns)

June 21, 2013

Fort Calhoun Boral Boral + control element assemblies LA #155 08/12/1993

NUDOCS #9308240229

June 21, 2013

H.B. Robinson Unit 2 Storage patterns/burnup + 200 ppm [B] Storage patterns/burnup + 200 ppm [B] LA #198 12/22/2003

ML033560622

June 21, 2013

Indian Point Unit 2 Region 1-1: Storage patterns + IFBA rods + 714 

ppm [B]

Region 1-2: 50% Boraflex + 786 ppm [B]

Region 2-1: 770 ppm [B]

Region 2-2: 70% Boraflex + 725 ppm [B]

LA #227 05/29/2002

ML021230367

June 21, 2013

Indian Point Unit 3 Boral Boral + burnup LA #90 10/12/1989

ML003778816

June 21, 2013

Joseph M. Farley Unit 1 Storage patterns/burnup + IFBA rods + 400 ppm 

[B]

Storage patterns/burnup + IFBA rods + 400 

ppm [B]

LA #133 01/23/1998

ML013130226

June 21, 2013

Joseph M. Farley Unit 2 Storage patterns/burnup + 400 ppm [B] Storage patterns/burnup + 400 ppm [B] LA #125 01/23/1998

ML013130226

June 21, 2013

Kewaunee Boron Carbide plates (ESK Tetrabor: see 

NUDOCS #7812080188 12/01/1978)

Boral in the Canal Pool LA #26 03/06/1979

NUDOCS#7904060101 (Tetrabor)

LA #150 01/23/2001

ML010240051 (Boral)

June 21, 2013

McGuire Unit 1 Boral + 800 ppm [B] Storage patterns/burnup + 800 ppm [B] LA#225 03/17/2005

ML050280409

June 21, 2013

McGuire Unit 2 Boral + 800 ppm [B] Storage patterns/burnup + 800 ppm [B] LA#207 03/17/2005

ML050280409

June 21, 2013
Millstone Unit 2 Regions A and B: 75% Boraflex + Storage 

patterns/burnup + 600 ppm [B] 

Region C: Storage patterns + RODLETS + 

600 ppm [B]

LA #274 04/01/2003 

ML030910485

Response to RAI for Rodlet LAR

ML13155A140 05/28/2013

June 21, 2013

Millstone Unit 3 Boral + Storage patterns/burnup in Region 1 

and 2

Region 3: Storage pattersn/burnup LA #189 11/28/2000

ML003744387

June 21, 2013

North Anna Units 1 + 2

(shared pool)

Storage patterns/burnup + 350 [B] Storage patterns/burnup + 350 [B] LA #227 and #208 06/15/2001

ML011700557

June 21, 2013

Oconee Units 1 + 2 

(shared pool)

Storage patterns/burnup + 430 ppm [B] Storage patterns/burnup + 430 ppm[ B] LA #323 and #323 04/22/02

ML020930470

June 21, 2013

Oconee Unit 3 Storage patterns/burnup + 430 ppm [B] Storage patterns/burnup + 430 ppm [B] LA #324 04/22/02

ML020930470

June 21, 2013

Palisades Storage patterns/burnup + 850 ppm [B] Storage patterns/burnup + 850 ppm [B] LA #236 02/06/2009

 ML090160238 (ppm [B])

LA #246 01/27/2012

ML11362A468 (storage patterns)

LA #250 2/28/2013

ML13056A514 (Metamic Inserts)

June 21, 2013

Palo Verde Unit 1 Storage patterns/burnup + 500 ppm [B] Storage patterns/burnup + 500 ppm [B] LA #125 03/02/2000

ML003689038

June 21, 2013

Palo Verde Unit 2 Storage patterns/burnup + 500 ppm [B] Storage patterns/burnup + 500 ppm [B] LA #125 03/02/2000

ML003689038

June 21, 2013

Palo Verde Unit 3 Storage patterns/burnup + 500 ppm [B] Storage patterns/burnup + 500 ppm [B] LA #125 03/02/2000

ML003689038

June 21, 2013

Point Beach Units 1 + 2

(Shared pool)

Storage patterns/burnup + 402 ppm [B] +IFBA Storage patterns/burnup + 402 ppm [B] + 

IFBA

LA #236 #240 03/05/2010

ML100400106

June 21, 2013

Prairie Island Unit 1 Storage patterns/burnup + 730 ppm [B] + Gd 

burnable absorbers

Storage patterns/burnup + 730 ppm [B] + Gd 

burnable absorbers

LA#129 06/12/1997

ML022260190

June 21, 2013

Prairie Island Unit 2 Storage patterns/burnup + 730 ppm [B] + Gd 

burnable absorbers

Storage patterns/burnup + 730 ppm [B] + Gd 

burnable absorbers

LA#129 06/12/1997

ML022260190

June 21, 2013

R.E. Ginna Storage patterns/burnup + borated stainless 

steel + 584 ppm [B]

Storage patterns/burnup + borated stainless 

steel + 584 ppm [B]

LA #79 12/07/2000

ML003761578

June 21, 2013

Salem Unit 1 Boral + Storage patterns/burnup Boral + storage patterns/burnup LA #151 05/04/1994

ML011710291 (Boral)

LA # 262 02/06/2004

ML033650405 (revise ppm [B])

June 21, 2013

Salem Unit 2 Boral + storage patterns/burnup Boral + storage patterns/burnup LA #131 05/04/1994

ML011710291 (Boral)

LA # 244 02/06/2004

ML033650405 (revise ppm [B])

June 21, 2013

San Onofre Unit 2 CEA rods + Borated Stainless Steel GT inserts 

in assemblies + Erbium rods + storage 

patterns/burnup + 970 ppm [B] 

CEA rods + Borated Stainless Steel GT 

inserts in assemblies + Erbium rods + 

storage patterns/burnup + 970 ppm [B] 

LA #213 09/27/2007

ML072550175 

June 21, 2013

San Onofre Unit 3 CEA rods + Borated Stainless Steel GT inserts 

in assemblies + Erbium rods + storage 

patterns/burnup + 970 ppm [B] 

CEA rods + Borated Stainless Steel GT 

inserts in assemblies + Erbium rods + 

storage patterns/burnup + 970 ppm [B] 

LA #205 09/27/2007

ML072550175

June 21, 2013

Seabrook Unit 1 Boral + Storage patterns/burnup Storage Patterns/burnup No license amendment found in ADAMS 

for installation of Boral.

License Amendment request to remove 

Boraflex credit is under review. See 

ML12038A036 01/30/2012.

June 21, 2013

Sequoyah Units 1 + 2

(shared pool)

Boral + storage patterns/burnup +300 ppm [B] Boral + storage patterns/burnup + 300 [B] LA #167 and #157 04/28/1993 

ML013310493 (Boral and cask pit)

LA # 265 #256 12/19/2000

ML003779981 (300 ppm [B])

June 21, 2013

Shearon Harris Unit 1 

Pools A and B

PWR racks: Storage patterns/burnup + 500 

ppm [B] 

BWR racks: Boraflex LA #121 03/10/2006

ML060600349

June 21, 2013
Shearon Harris Unit 1 

Pools C and D

Boral + Metamic + storage patterns/burnup Boral + Metamic + storage patterns/burnup LA #103 12/21/2000

ML003779362 (original racking)

LA #129 01/29/2009

ML090270022 (Metamic)

June 21, 2013

South Texas Project Unit 1 Storage patterns/burnup + IFBA + 500 ppm [B] Storage patterns/burnup + 700 ppm [B] LA # 104 03/03/1999

ML021330578

June 21, 2013

South Texas Project Unit 2 Storage patterns/burnup + IFBA + 500 ppm [B] Storage patterns/burnup + 700 ppm [B] LA # 91 03/03/1999

ML021330578

June 21, 2013

St. Lucie Unit 1 Storage patterns/burnup + 500 ppm [B]

+ Metamic inserts

Storage patterns/burnup + 500 ppm [B]

+ Metamic inserts

LA #193 09/23/2004

ML042670562 (storage patterns and [B])

LA#213 7/09/2012 

ML12181A019 p60,83 (extended power 

uprate and Metamic)

June 21, 2013

St. Lucie Unit 2 Checkerboarding + CEA + Gadolinium + 

burnable absorbers 500 ppm [B] +Metamic 

inserts

Checkerboarding + CEA + Gadolinium + 

burnable absorbers 500 ppm [B] +Metamic 

inserts

LA#101 05/06/1999

ML013610012

LA #163 9/24/2012, p 64 

ML12235A463 (extended power uprate and 

Metamic inserts)

LA #162 9/19/2012

ML12263A224, p10, ([B])

June 21, 2013

Surry Units 1 + 2 

(shared pool)

burnup + 14" center-center 14" center-center LA # 214 06/19/1998

ML012710055

June 21, 2013

Three Mile Island Unit 1 

Pool A

Boral + Storage patterns/burnup + Metamic Boral + Storage patterns/burnup + Metamic LA #164 04/27/1992

ML003766347 (Boral)

50.59 report 04/16/12

ML12109A235 (Metamic)

June 21, 2013

Three Mile Island Unit 1 

Pool B

burnup + 13 5/8" distance burnup + 13 5/8" distance LA #164 04/27/1992

ML003766347 

June 21, 2013

Turkey Point Unit 3 RCCA + storage patterns/burnup + 500 ppm [B] Metamic inserts + RCCA + storage 

patterns/burnup + 500 ppm [B]

LA #234 07/17/2007

ML071800198 (Metamic)

LA #246 10/31/2011

ML11216A057 (storage patterns)

LA #249 6/15/2012 6/15/2012, p79

ML11293A365 (extended power uprate)

June 21, 2013

Turkey Point Unit 4 RCCA Storage pattern/burnup +500 ppm [B] Metamic inserts + RCCA Storage 

pattern/burnup +500 ppm [B]

LA #229 07/17/2007

ML071800198 (Metamic)

LA #242 10/31/2011

ML11216A057 (storage patterns)

LA #245 6/15/2012 

ML11293A365, p79, (extended power 

uprate)

June 21, 2013

V.C. Summer Boral Boral + burnup LA #160 08/30/2002

ML022330203

Corrected LA #160 10/15/2007

ML072490017 

June 21, 2013

Vogtle Unit 1 Boral + stoarge patterns/burnup + IFBA + 511 

ppm [B]

Boral + stoarge patterns/burnup + IFBA + 

511 ppm [B]

LA #102 06/29/1998

ML102410127 (Boral racks)

LA #139 09/22/2005

ML052420110 (storage patterns/burnup and 

ppm [B])

June 21, 2013

Vogtle Unit 2 Storage patterns/burnup + IFBA + 394 ppm [B] Storage patterns/burnup + IFBA + 394 ppm 

[B]

LA #118 09/22/2005

ML052420110

June 21, 2013

Waterford Unit 3 Boral (Region I located in cask storage pit) Boral + storage patterns/burnup (located in 

spent fuel pool)

LA #144 07/10/1998

ML021790559

June 21, 2013

Watts Bar Unit 1 Boral + storage patterns/burnup Boral + storage patterns/burnup LA #6 07/28/1997

ML020780158

June 21, 2013

Wolf Creek Unit 1 Boral + Storage patterns + IFBA Boral + Storage patterns/burnup + IFBA LA #120 03/22/1999

ML022050079

June 21, 2013
Management of Spent Fuel Pool Criticality

Boiling Water Reactors

June 21, 2013 update

BWR Current Subcriticality Credit License Amendment 

Reference Date updated

Browns Ferry Unit 1 Boral LA #42 09/21/1978

ML020040269

June 21, 2013

Browns Ferry Unit 2 Boral LA #39 09/21/1978

ML020040269

June 21, 2013

Browns Ferry Unit 3 Boral LA #16 09/21/1978

ML020040269

June 21, 2013

Brunswick Unit 1 Boral (BWR Fuel) 

8.95 inch distance for low-density PWR fuel

8.625 in distance for low-density BWR fuel

LA #8 08/26/1977

ML020370382 (low-density racks)

LA #61 12/15/1983

ML020380374 (Boral racks)

June 21, 2013

Brunswick Unit 2 Boral (BWR Fuel) 

8.95 inch distance for low-density PWR fuel

8.625 inch distance for low-density BWR fuel

LA #30 08/26/1977

ML020370382 (low-density racks)

LA #87 12/15/1983

ML020380374 (Boral racks)

June 21, 2013

Clinton Boral + Metamic + low-density racks + burnup LA #170 10/31/2005

ML053070593

June 21, 2013

Columbia Generating Station B4C granule in phenolic resin B4C is original to plant; therefore there 

is no license amendment for installation. 

See LR RAI response ML102440342 p5, 

08/19/2010

June 21, 2013

Cooper Boral + 2 Metamic racks + burnup + Gd in Metamic 

racks

LA #52 09/29/1978

ML021350079 (Boral)

LA #227 09/06/2007

ML072130023 (Metamic + burnup)

Holtec Licensing Report 10/07/2006

ML062990432 p48 (Gd credit)

June 21, 2013

Dresden Unit 2 Boral LA #74 08/27/1982

ML021150164

June 21, 2013

Dresden Unit 3 Boral LA #66 08/27/1982

ML021150164

June 21, 2013

Duane Arnold Boral + Gd burnable absorbers LA #195 02/02/1994

ML021910481 (Boral)

LA #226 06/08/1999

ML021920201 (add GE 10x10 fuel)

June 21, 2013

Edwin I. Hatch Unit 1 Boral LA #74 04/21/80

ML012950485 (Boral)

LA #220 03/23/00

ML003711959 (168 rack cells)

June 21, 2013

Edwin I. Hatch Unit 2 Boral LA #15 04/21/80

ML012950485 (Boral)

LA #161 03/23/00

ML003711959 (168 rack cells)

June 21, 2013

Fermi Unit 2 Boraflex + Boral + Gd burnable absorber LA #141 01/25/2001

ML011150103

June 21, 2013

Grand Gulf Unit 1 Boraflex + storage patterns LA #17 08/18/1986

ML021420285

June 21, 2013

Hope Creek Unit 1 Boral No Amendment for Boral Installation.

Boral monitoring in place; see SER for LR 

ML110690244 p314, 03/09/2011

June 21, 2013

James A. Fitzpatrick Boral + Gd burnable absorbers SER for LA #256 11/10/1999

ML993260026

June 21, 2013

La Salle County Unit 1 Boral + storage patterns/burnup + Gadolinia rods LA #90 02/24/1993

ML021120427

June 21, 2013
La Salle County Unit 2 Rio Tinto Alcan NETCO Snap-In Inserts LA #186 01/28/2011

ML 110250051

Withdrawal of LAR and notification of 

completion, 01/06/2012, ML120060432 

June 21, 2013

Limerick Unit 1 Boral LA #82 11/29/1994

ML011560690

June 21, 2013

Limerick Unit 2 Boral LA #82 11/29/1994

ML011560690

June 21, 2013

Monticello Boral LA #34 04/14/1978

ML020880176

June 21, 2013

Nine Mile Point Unit 1 Boraflex + Boral LA #54 02/01/1984

ML010990385 (Boraflex)

LA #167 06/17/1999

ML011030037 (Boral)

June 21, 2013

Nine Mile Point Unit 2 Boral No amendment found in ADAMS for 

Boral Installation

See Holtec criticality analysis 

ML103500365 12/13/2010

June 21, 2013

Oyster Creek Unit 1 Boraflex (2645 cells) + Boral (390 cells) + Gd 

burnable absorbers

LA #76 09/17/08

ML011160078 (Boraflex)

LA #179 04/10/1995

ML011220244 (Gd)

LA #215 09/15/2000

ML003730135 (Boral)

June 21, 2013

Peach Bottom Unit 2 Boraflex, storage patterns, burnup

during installation of NETCO Snap-in inserts

LA #116 02/19/1986

ML021570574

LA#287 5/21/2013

ML13114A929

June 21, 2013

Peach Bottom Unit 3 Boraflex, storage patterns, burnup

during installation of NETCO Snap-in inserts

LA #120 02/19/1986

ML021570574

LA#290 5/21/2013

ML13114A929

June 21, 2013

Perry Unit 1 No public reference to neutron absorber or 

subcriticality credit found

No amendment found in ADAMS June 21, 2013

Pilgrim Unit 1 Boraflex + Boral + Metamic LA #33 08/17/1978

ML011910005 (Install Boral)

LA#155 06/22/1994

ML011940178 (Install more Boral)

No LA found for installation of Boraflex 

or Metamic

LR SER on 6/28/2007

ML071410455 (Boraflex)

LR Supp. SER on 6/30/2011

ML11147A036 (Metamic)

June 21, 2013

Quad Cities Unit 1 Boraflex + storage patterns LA #79 06/09/1982

ML020940141

June 21, 2013

Quad Cities Unit 2 Boraflex + storage patterns LA #79 06/09/1982

ML020940141

June 21, 2013

River Bend Unit 1 Boraflex II See Licence Amendment Request 

ML102630247 09/09/10

June 21, 2013

Susquehanna Unit 1 Boral Boral is original to plant; therefore there 

is no license amendment for installation; 

see SER for License Renewal 

ML093170792 p249, 11/30/2009 

June 21, 2013

Susquehanna Unit 2 Boral Boral is original to plant; therefore there 

is no license amendment for installation; 

see SER for License Renewal 

ML093170792 p249, 11/30/2009 

June 21, 2013

Vermont Yankee Boral LA #104 05/20/88

ML011640093

June 21, 2013
Management of Spent Fuel Pool Criticality

Decommissioned Plants which still hold fuel in either wet or dry storage

Plant Plant type Total spent 

fuel bundles Bundle status Pool status Current Subcriticality Credit Sources Date Updated NOTE

LaCrosse BWR 0 ISFSI Empty --- Correspondance 10/31/2012

ML12264A384

June 21, 2013

Millstone Unit 1 BWR No public sources found in ADAMS June 21, 2013

Zion Units 1+2

Shared pool

PWR No public sources found in ADAMS June 21, 2013