RS-12-061, License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP

ML12290A111
Person / Time
Site:	LaSalle
Issue date:	10/15/2012
From:	Simpson P Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-12-061
Download: ML12290A111 (11)

Text

RS-1 2-061 October 15, 2012 10 CFR 50.90 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 LaSalle County Station, Unit 2 Facility Operating License No. NPF-18 NRC Docket No. 50-374

Subject:

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP In accordance with 10 CFR 50,90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGC) requests an amendment to Facility Operating License No. NPF-18 for LaSalle County Station (LSCS), Unit 2. The proposed change is necessary to reflect the completion of the NETCO-SNAP-IN insert campaign. Specifically, the change removes License Conditions that are no longer necessary to address the interim configurations of the LSCS, Unit 2, spent fuel pool.

This request is subdivided as follows.

• provides a description and evaluation of the proposed change.

• provides a markup of the affected Operating License pages.

The proposed change has been reviewed by the LSCS Plant Operations Review Committee and approved by the Nuclear Safety Review Board in accordance with the requirements of the EGC Quality Assurance Program.

EGC requests approval of the proposed change by October 15, 2013. Once approved, the amendment will be implemented within 60 days. This implementation period will provide adequate time for the affected station documents to be revised using the ap i t Ch RS-12-061 October 15, 2012 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 LaSalle County Station, Unit 2 Facility Operating License No. NPF-18 NRC Docket No. 50-374 10 CFR 50.90

Subject:

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGC) requests an amendment to Facility Operating License No. NPF-18 for LaSalle County Station (LSCS), Unit 2. The proposed change is necessary to reflect the completion of the NETCO-SNAP-IN insert campaign. Specifically, the change removes License Conditions that are no longer necessary to address the interim configurations of the LSCS, Unit 2, spent fuel pool.

This request is subdivided as follows.

• provides a description and evaluation of the proposed change.

• provides a markup of the affected Operating License pages.

The proposed change has been reviewed by the LSCS Plant Operations Review Committee and approved by the Nuclear Safety Review Board in accordance with the requirements of the EGC Quality Assurance Program.

EGC requests approval of the proposed change by October 15, 2013. Once approved, the amendment will be implemented within 60 This implementation period will provide adequate time for the affected station documents to be revised using the appropriate change control mechanisms.

RS-12-061 October 15, 2012 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 LaSalle County Station, Unit 2 Facility Operating License No. NPF-18 NRC Docket No. 50-374 10 CFR 50.90

Subject:

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGC) requests an amendment to Facility Operating License No. NPF-18 for LaSalle County Station (LSCS), Unit 2. The proposed change is necessary to reflect the completion of the NETCO-SNAP-IN insert campaign. Specifically, the change removes License Conditions that are no longer necessary to address the interim configurations of the LSCS, Unit 2, spent fuel pool.

This request is subdivided as follows.

• provides a description and evaluation of the proposed change.

• provides a markup of the affected Operating License pages.

The proposed change has been reviewed by the LSCS Plant Operations Review Committee and approved by the Nuclear Safety Review Board in accordance with the requirements of the EGC Quality Assurance Program.

EGC requests approval of the proposed change by October 15, 2013. Once approved, the amendment will be implemented within 60 This implementation period will provide adequate time for the affected station documents to be revised using the appropriate change control mechanisms.

October 15, 2012 U. S. Nuclear Regulatory Commission Page 2 In accordance with 10 CFR 50.91, "Notice for public comment; State consultation,"

paragraph (b), EGC is notifying the State of Illinois of this application for license amendment by transmitting a copy of this letter and its attachments to the designated State Official.

There are no regulatory commitments contained within this letter. Should you have any questions concerning this letter, please contact Mr. Thomas J. Griffith at (630) 657-2818.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 15th day of October 2012.

Patrick R. Simpson U

Manager - Licensing Exelon Generation Company, LLC Attachments:

1. Evaluation of Proposed Change 2.

Markup of Proposed Operating License Pages cc:

NRC Regional Administrator, Region III NRC Senior Resident Inspector - LaSalle County Station Illinois Emergency Management Agency - Division of Nuclear Safety October 15, 2012 U. S. Nuclear Regulatory Commission Page 2 In accordance with 10 CFR 50.91, "Notice for public comment; State consultation,"

paragraph (b), EGC is notifying the State of Illinois of this application for license amendment by transmitting a copy of this letter and its attachments to the designated State Official.

There are no regulatory commitments contained within this letter. Should you have any questions concerning this letter, please contact Mr. Thomas J. Griffith at (630) 657-2818.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 15th day of October 2012.

Patrick R. Simpson Manager - Licensing Exelon Generation Company, LLC Attachments:

1. Evaluation of Proposed Change

2. Markup of Proposed Operating License Pages cc:

NRC Regional Administrator, Region III NRC Senior Resident Inspector - LaSalle County Station Illinois Emergency Management Agency - Division of Nuclear Safety October 15, 2012 U. S. Nuclear Regulatory Commission Page 2 In accordance with 10 CFR 50.91, "Notice for public comment; State consultation,"

paragraph (b), EGC is notifying the State of Illinois of this application for license amendment by transmitting a copy of this letter and its attachments to the designated State Official.

There are no regulatory commitments contained within this letter. Should you have any questions concerning this letter, please contact Mr. Thomas J. Griffith at (630) 657-2818.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 15th day of October 2012.

Patrick R. Simpson Manager - Licensing Exelon Generation Company, LLC Attachments:

1. Evaluation of Proposed Change

2. Markup of Proposed Operating License Pages cc:

NRC Regional Administrator, Region III NRC Senior Resident Inspector - LaSalle County Station Illinois Emergency Management Agency - Division of Nuclear Safety

ATTACHMENT 1 Evaluation of Proposed Change

Subject:

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP 1.0

SUMMARY

DESCRIPTION 2.0 DETAILED DESCRIPTION

4.0 REGULATORY EVALUATION

4.1 No Significant Hazards Consideration 4.2 Conclusions

6.0 REFERENCES

ATTACHMENT 1 Evaluation of Proposed Change

Subject:

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP 1.0

SUMMARY

DESCRIPTION 2.0 DETAILED DESCRIPTION

4.0 REGULATORY EVALUATION

4.1 No Significant Hazards Consideration 4.2 Conclusions

6.0 REFERENCES

Page 1 7

ATTACHMENT 1 Evaluation of Proposed Change

Subject:

License Amendment Request Regarding the Removal of License Conditions Addressing Interim Configurations of the LaSalle County Station Unit 2 SFP 1.0

SUMMARY

DESCRIPTION 2.0 DETAILED DESCRIPTION

4.0 REGULATORY EVALUATION

4.1 No Significant Hazards Consideration 4.2 Conclusions

6.0 REFERENCES

Page 1 7

ATTACHMENT 1 Evaluation of Proposed Change 1.0

SUMMARY

DESCRIPTION In Reference 1, Exelon Generation Company, LLC (EGC) requested an amendment to Facility Operating License Nos. NPF-1 1 and NPF-18 for LaSalle County Station (LSCS), Units 1 and 2, respectively. The proposed change revised Technical Specifications (TS) Section 4.3.1, "Criticality," to address a non-conservative TS. Specifically, the proposed change addressed the BORAFLEXTM degradation issue in the Unit 2 spent fuel storage racks by revising TS Section 4.3.1 to allow the use of NETCO-SNAP-IN inserts in Unit 2 spent fuel storage rack cells as a replacement for the neutron absorbing properties of the existing BORAFLEXTM panels.

The NRC approved EGC's license amendment request in Reference 2. However, in Reference 2, the NRC noted that concerns regarding the long-term crediting of BORAFLEXTM in the LSCS spent fuel pools (SFPs) had yet to be resolved. As such, Reference 2 included License Condition 2.C.(30) that established a three-tiered SFP BORAFLEXTM credit configuration that was valid until October 28, 2011. Reference 2 also included License Condition 2.C.(31) that established a more restricted-tiered configuration for crediting BORAFLEXTM until completion of the NETCO-SNAP-IN insert campaign, and License Condition 2.C.(32) that required the NETCO-SNAP-IN insert campaign be completed by December 31, 2014.

In Reference 3, EGC notified the NRC that the NETCO-SNAP-IN insert installation was completed on December 29, 2011. Completion of the NETCO-SNAP-IN insert installation campaign placed LSCS in compliance with TS 4.3.1.1.c and satisfied the requirements of License Condition 2.C.(32). Given that the installation of the NETCO-SNAP-IN inserts is complete, EGC is submitting a license amendment request that proposes the removal of obsolete License Conditions. The submission of this license amendment request also fulfills the commitment made by EGC, in Reference 4, "to remove the Operating License conditions that address the interim configurations of the spent fuel pool during the NETCO-SNAP-INO inserts loading campaign."

2.0 DETAILED DESCRIPTION LSCS completed the Unit 2 SFP NETCO-SNAP-IN insert campaign on December 29, 2011, and has completed each of the License Conditions, included in Reference 2, related to the interim configurations of the SFP and the required completion date for installation. Given that the License Conditions have been completed and LSCS is in full compliance with TS 4.3.1 and License Condition 2.C.(33), License Conditions 2.C.(30), 2.C.(31), and 2.C.(32) are obsolete.

ATTACHMENT 1 Evaluation of Proposed Change 1.0

SUMMARY

DESCRIPTION In Reference 1, Exelon Generation Company, LLC (EGG) requested an amendment to Facility Operating License Nos. NPF-11 and NPF-18 for LaSalle County Station (LSCS), Units 1 and 2, respectively. The proposed change revised Technical Specifications (TS) Section 4.3.1, "Criticality," to address a non-conservative TS. Specifically, the proposed change addressed the BORAFLEX' degradation issue in the Unit 2 ~ent fuel storage racks by revising TS Section 4.3.1 to allow the use of NETCO-SNAP-IN inserts in Unit 2 spent fuel storage rack cells as a replacement for the neutron absorbing properties of the existing BORAFLEX' panels.

The NRC approved EGC's license amendment request in Reference 2. However, in Reference 2, the NRC noted that concerns regarding the long-term crediting of BORAFLEX' in the LSCS spent fuel pools (SFPs) had yet to be resolved. As such, Reference 2 included License Condition 2.C.(30) that established a three-tiered SFP BORAFLEX' credit configuration that was valid until October 28, 2011. Reference 2 also included License Condition 2.C.(31) that established a more restricted-tiered configuration for crediting BORAFLEX' until completion of the NETCO-SNAP-IN insert campaign, and License Condition 2.C.(32) that required the NETCO-SNAP-IN insert campaign be completed by December 31,2014.

In Reference 3, EGC notified the NRC that the NETCO-SNAP-IN insert installation was completed on December 29, 2011. Completion of the NETCO-SNAP-IN insert installation campaign placed LSCS in compliance with TS 4.3.1.1.c and satisfied the requirements of License Condition 2.C.(32). Given that the installation of the NETCO-SNAP-IN inserts is complete, EGC is submitting a license amendment request that proposes the removal of obsolete License Conditions. The submission of this license amendment request also fulfills the commitment made by EGC, in Reference 4, "to remove the Operating License conditions that address the interim configurations of the spent fuel pool during the NETCO-SNAP-IN inserts loading campaign."

2.0 DETAILED DESCRIPTION LSCS completed the Unit 2 SFP NETCO-SNAP-IN insert campaign on December 29, 2011, and has completed each of the License Conditions, included in Reference 2, related to the interim configurations of the SFP and the required completion date for installation. Given that the License Conditions have been completed and LSCS is in full compliance with TS 4.3.1 and License Condition 2.C.(33), License Conditions 2.C.(30), 2.C.(31), and 2.C.(32) are obsolete.

The first proposed change removes License Condition 2.C.(30). In Reference 5, EGC notified the NRC of compliance with License Condition 2.C.(31) which was done in anticipation of the October 28,2011, expiration of License Condition 2.C.(30). License condition 2.C.(30) was used to address interim configurations of the LSCS Unit 2 SFP and it expired on October 28, 2011. The proposed License Condition to be removed reads as follows:

Page 2 of 7 ATTACHMENT 1 Evaluation of Proposed Change 1.0

SUMMARY

DESCRIPTION In Reference 1, Exelon Generation Company, LLC (EGG) requested an amendment to Facility Operating License Nos. NPF-11 and NPF-18 for LaSalle County Station (LSCS), Units 1 and 2, respectively. The proposed change revised Technical Specifications (TS) Section 4.3.1, "Criticality," to address a non-conservative TS. Specifically, the proposed change addressed the BORAFLEX' degradation issue in the Unit 2 ~ent fuel storage racks by revising TS Section 4.3.1 to allow the use of NETCO-SNAP-IN inserts in Unit 2 spent fuel storage rack cells as a replacement for the neutron absorbing properties of the existing BORAFLEX' panels.

The NRC approved EGC's license amendment request in Reference 2. However, in Reference 2, the NRC noted that concerns regarding the long-term crediting of BORAFLEX' in the LSCS spent fuel pools (SFPs) had yet to be resolved. As such, Reference 2 included License Condition 2.C.(30) that established a three-tiered SFP BORAFLEX' credit configuration that was valid until October 28, 2011. Reference 2 also included License Condition 2.C.(31) that established a more restricted-tiered configuration for crediting BORAFLEX' until completion of the NETCO-SNAP-IN insert campaign, and License Condition 2.C.(32) that required the NETCO-SNAP-IN insert campaign be completed by December 31,2014.

In Reference 3, EGC notified the NRC that the NETCO-SNAP-IN insert installation was completed on December 29, 2011. Completion of the NETCO-SNAP-IN insert installation campaign placed LSCS in compliance with TS 4.3.1.1.c and satisfied the requirements of License Condition 2.C.(32). Given that the installation of the NETCO-SNAP-IN inserts is complete, EGC is submitting a license amendment request that proposes the removal of obsolete License Conditions. The submission of this license amendment request also fulfills the commitment made by EGC, in Reference 4, "to remove the Operating License conditions that address the interim configurations of the spent fuel pool during the NETCO-SNAP-IN inserts loading campaign."

2.0 DETAILED DESCRIPTION LSCS completed the Unit 2 SFP NETCO-SNAP-IN insert campaign on December 29, 2011, and has completed each of the License Conditions, included in Reference 2, related to the interim configurations of the SFP and the required completion date for installation. Given that the License Conditions have been completed and LSCS is in full compliance with TS 4.3.1 and License Condition 2.C.(33), License Conditions 2.C.(30), 2.C.(31), and 2.C.(32) are obsolete.

The first proposed change removes License Condition 2.C.(30). In Reference 5, EGC notified the NRC of compliance with License Condition 2.C.(31) which was done in anticipation of the October 28,2011, expiration of License Condition 2.C.(30). License condition 2.C.(30) was used to address interim configurations of the LSCS Unit 2 SFP and it expired on October 28, 2011. The proposed License Condition to be removed reads as follows:

Page 2 of 7

ATTACHMENT 1 Evaluation of Proposed Change (30) Beginning 120 days after the LSCS Unit 2 refueling outage 13 (L2R1 3) and until October 28, 2011, the storage cells in the rack modules without NETCO-SNAP-INS' inserts will be placed into one of three categories: Unrestricted, Restricted and Unusable.

(a) Unrestricted will be cells whose minimum panel B1° areal density is greater than or equal to 0.0167 g/cm2, Unrestricted cells may contain fuel assemblies up to the maximum reactivity identified in TS 4.3.1.1.d.

(b) Restricted will be cells whose minimum panel B10 areal density is between 0.0167 g/cm2 and 0.0115 g/cm2. Restricted cells will only contain LSCS Units 1 and 2 Cycle 1 General Electric (GE) and GE14 fuel assemblies.

(c) Unusable will be cells whose minimum panel B10 areal density is less than or equal to 0.0115 g/cm2. Unusable cells will be administratively controlled to remain empty of any fuel assembly.

The second proposed change removes License Condition 2.C.(31). LSCS completed the NETCO-SNAP-IN insert campaign and is now in compliance with TS 4.3.1.1.c. License Condition 2.C.(31) was used to address the interim configurations of the LSCS Unit 2 SFP after October 28, 2011, and was necessary until compliance with TS 4.3.1.1.c could be achieved. In Reference 3, EGC notified the NRC of the completion of the NETCO-SNAP-IN insert campaign, which subsequently placed LSCS in compliance with TS 4.3.1.1.c. The proposed License Condition to be removed reads as follows:

(31) After October 28, 2011, for the storage cells in the rack modules without NETCO-SNAP-IN inserts in the LSCS Unit 2 SFP, the following categories will apply: Unrestricted, Restricted, and Unusable.

(a) Unrestricted will be cells whose minimum panel B10 areal density is greater than or equal to 0.0200 g/cm2, Unrestricted cells may contain fuel assemblies up to the maximum reactivity identified in TS 4.3. 1.1.d.

(b) Restricted will be cells whose minimum panel B10 areal density is between 0.0200 g/cm2 and 0.0167 g/cm2. Restricted cells will only contain LSCS Units 1 and 2 Cycle 1 GE and GE14 fuel assemblies.

(c) Unusable will be cells whose minimum panel B10 areal density is less than or equal to 0.0167 g/cm2. Unusable cells will be administratively controlled to remain empty of any fuel assembly.

The last proposed change removes License Condition 2 C (32) because LSCS completed the ATTACHMENT 1 Evaluation of Proposed Change (30) Beginning 120 days after the LSCS Unit 2 refueling outage 13 (L2R13) and until October 28,2011, the storage cells in the rack modules without NETCO-SNAP-IN inserts will be placed into one of three categories: Unrestricted, Restricted and Unusable.

(a) Unrestricted will be cells whose minimum panel B10 areal density is greater than or equal to 0.0167 g/cm2, Unrestricted cells may contain fuel assemblies up to the maximum reactivity identified in TS 4.3.1.1.d.

(b) Restricted will be cells whose minimum panel B10 areal density is between 0.0167 g/cm2 and 0.0115 g/cm2. Restricted cells will only contain LSCS Units 1 and 2 Cycle 1 General Electric (GE) and GE14 fuel assemblies.

(c) Unusable will be cells whose minimum panel B10 areal density is less than or equal to 0.0115 g/cm2. Unusable cells will be administratively controlled to remain empty of any fuel assembly.

The second proposed change removes License Condition 2.C.(31). LSCS completed the NETCO-SNAP-IN insert campaign and is now in compliance with TS 4.3.1.1.c. License Condition 2.C.(31) was used to address the interim configurations of the LSCS Unit 2 SFP after October 28, 2011, and was necessary until compliance with TS 4.3.1.1.c could be achieved. In Reference 3, EGC notified the NRC of the completion of the NETCO-SNAP-IN insert campaign, which subsequently placed LSCS in compliance with TS 4.3.1.1.c. The proposed License Condition to be removed reads as follows:

(31) After October 28, 2011, for the storage cells in the rack modules without NETCO-SNAP-IN inserts in the LSCS Unit 2 SFP, the following categories will apply: Unrestricted, Restricted, and Unusable.

(a) Unrestricted will be cells whose minimum panel BlO areal density is greater than or equal to 0.0200 g/cm2, Unrestricted cells may contain fuel assemblies up to the maximum reactivity identified in TS 4.3.1.1.d.

(b) Restricted will be cells whose minimum panel B10 areal density is between 0.0200 g/cm2 and 0.0167 g/cm2. Restricted cells will only contain LSCS Units 1 and 2 Cycle 1 GE and GE14 fuel assemblies.

(c) Unusable will be cells whose minimum panel B10 areal density is less than or equal to 0.0167 g/cm2. Unusable cells will be administratively controlled to remain empty of any fuel assembly.

The last proposed change removes License Condition 2.C.(32) because LSCS completed the NETCO-SNAP-IN insert campaign on December 29, 2011, which met the requirements of License Condition 2.C.(32). The proposed License Condition to be removed reads as follows:

(32) To ensure the ongoing Boraflex degradation will not exceed the spent fuel pool criticality limits, Exelon shall complete loading all accessible storage rack cells in the LSCS Unit 2 spent fuel pool with NETCO-SNAP-IN inserts no later than December 31,2014.

3 of 7 ATTACHMENT 1 Evaluation of Proposed Change (30) Beginning 120 days after the LSCS Unit 2 refueling outage 13 (L2R13) and until October 28,2011, the storage cells in the rack modules without NETCO-SNAP-IN inserts will be placed into one of three categories: Unrestricted, Restricted and Unusable.

(a) Unrestricted will be cells whose minimum panel B10 areal density is greater than or equal to 0.0167 g/cm2, Unrestricted cells may contain fuel assemblies up to the maximum reactivity identified in TS 4.3.1.1.d.

(b) Restricted will be cells whose minimum panel B10 areal density is between 0.0167 g/cm2 and 0.0115 g/cm2. Restricted cells will only contain LSCS Units 1 and 2 Cycle 1 General Electric (GE) and GE14 fuel assemblies.

(c) Unusable will be cells whose minimum panel B10 areal density is less than or equal to 0.0115 g/cm2. Unusable cells will be administratively controlled to remain empty of any fuel assembly.

The second proposed change removes License Condition 2.C.(31). LSCS completed the NETCO-SNAP-IN insert campaign and is now in compliance with TS 4.3.1.1.c. License Condition 2.C.(31) was used to address the interim configurations of the LSCS Unit 2 SFP after October 28, 2011, and was necessary until compliance with TS 4.3.1.1.c could be achieved. In Reference 3, EGC notified the NRC of the completion of the NETCO-SNAP-IN insert campaign, which subsequently placed LSCS in compliance with TS 4.3.1.1.c. The proposed License Condition to be removed reads as follows:

(31) After October 28, 2011, for the storage cells in the rack modules without NETCO-SNAP-IN inserts in the LSCS Unit 2 SFP, the following categories will apply: Unrestricted, Restricted, and Unusable.

(a) Unrestricted will be cells whose minimum panel BlO areal density is greater than or equal to 0.0200 g/cm2, Unrestricted cells may contain fuel assemblies up to the maximum reactivity identified in TS 4.3.1.1.d.

(b) Restricted will be cells whose minimum panel B10 areal density is between 0.0200 g/cm2 and 0.0167 g/cm2. Restricted cells will only contain LSCS Units 1 and 2 Cycle 1 GE and GE14 fuel assemblies.

(c) Unusable will be cells whose minimum panel B10 areal density is less than or equal to 0.0167 g/cm2. Unusable cells will be administratively controlled to remain empty of any fuel assembly.

The last proposed change removes License Condition 2.C.(32) because LSCS completed the NETCO-SNAP-IN insert campaign on December 29, 2011, which met the requirements of License Condition 2.C.(32). The proposed License Condition to be removed reads as follows:

(32) To ensure the ongoing Boraflex degradation will not exceed the spent fuel pool criticality limits, Exelon shall complete loading all accessible storage rack cells in the LSCS Unit 2 spent fuel pool with NETCO-SNAP-IN inserts no later than December 31,2014.

3 of 7

ATTACHMENT 1 Evaluation of Proposed Change

3.0 TECHNICAL ANALYSIS

All proposed changes are administrative in nature and require no technical analysis.

4.0 REGULATORY EVALUATION

4.1 No Significant Hazards Consideration In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGC) requests an amendment to Facility Operating License No. NPF-18 for LaSalle County Station (LSCS), Unit 2. The proposed change is necessary to reflect the completion of the NETCO-SNAP-IN insert campaign. Specifically, the change removes License Conditions that are no longer necessary to address the interim configurations of the LSCS Unit 2 spent fuel pool.

According to 10 CFR 50.92, "Issuance of amendment," paragraph (c), a proposed amendment to an operating license involves no significant hazards consideration if operation of the facility in accordance with the proposed amendment would not:

(1)

Involve a significant increase in the probability or consequences of any accident previously evaluated; or (2)

Create the possibility of a new or different kind of accident from any accident previously evaluated; or (3)

Involve a significant reduction in a margin of safety.

EGC has evaluated the proposed change, using the criteria in 10 CFR 50.92, and has determined that the proposed change does not involve a significant hazards consideration. The following information is provided to support a finding of no significant hazards consideration.

1.

Does the proposed change involve a significant increase in the probability or consequences of an accident previously evaluated?

Response: No The proposed change removes License Conditions within the LSCS Unit 2

3.0 TECHNICAL ANALYSIS

ATIACHMENT1 Evaluation of Proposed Change All proposed changes are administrative in nature and require no technical analysis.

4.0 REGULATORY EVALUATION

4.1 No Significant Hazards Consideration In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGG) requests an amendment to Facility Operating License No. NPF-18 for LaSalle County Station (LSCS), Unit 2. The proposed change is necessary to reflect the completion of the NETCO-SNAP-IN insert campaign. Specifically, the change removes License Conditions that are no longer necessary to address the interim configurations of the LSCS Unit 2 spent fuel pool.

According to 10 CFR 50.92, "Issuance of amendment," paragraph (c), a proposed amendment to an operating license involves no significant hazards consideration if operation of the facility in accordance with the proposed amendment would not:

(1)

Involve a significant increase in the probability or consequences of any accident previously evaluated; or (2)

Create the possibility of a new or different kind of accident from any accident previously evaluated; or (3)

Involve a significant reduction in a margin of safety.

EGC has evaluated the proposed change, using the criteria in 10 CFR 50.92, and has determined that the proposed change does not involve a significant hazards consideration. The following information is provided to support a finding of no significant hazards consideration.

1.

Does the proposed change involve a significant increase in the probability or consequences of an accident previously evaluated?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN inserts and the required completion date for installation. All changes proposed by EGC in this license amendment request are administrative in nature because they remove License Conditions that have either been satisfied or that are no longer applicable. There are no physical changes to the facilities, nor any changes to the station operating procedures, limiting conditions for operation, or limiting safety system settings.

4 7

3.0 TECHNICAL ANALYSIS

ATIACHMENT1 Evaluation of Proposed Change All proposed changes are administrative in nature and require no technical analysis.

4.0 REGULATORY EVALUATION

4.1 No Significant Hazards Consideration In accordance with 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit," Exelon Generation Company, LLC (EGG) requests an amendment to Facility Operating License No. NPF-18 for LaSalle County Station (LSCS), Unit 2. The proposed change is necessary to reflect the completion of the NETCO-SNAP-IN insert campaign. Specifically, the change removes License Conditions that are no longer necessary to address the interim configurations of the LSCS Unit 2 spent fuel pool.

According to 10 CFR 50.92, "Issuance of amendment," paragraph (c), a proposed amendment to an operating license involves no significant hazards consideration if operation of the facility in accordance with the proposed amendment would not:

(1)

Involve a significant increase in the probability or consequences of any accident previously evaluated; or (2)

Create the possibility of a new or different kind of accident from any accident previously evaluated; or (3)

Involve a significant reduction in a margin of safety.

EGC has evaluated the proposed change, using the criteria in 10 CFR 50.92, and has determined that the proposed change does not involve a significant hazards consideration. The following information is provided to support a finding of no significant hazards consideration.

1.

Does the proposed change involve a significant increase in the probability or consequences of an accident previously evaluated?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN inserts and the required completion date for installation. All changes proposed by EGC in this license amendment request are administrative in nature because they remove License Conditions that have either been satisfied or that are no longer applicable. There are no physical changes to the facilities, nor any changes to the station operating procedures, limiting conditions for operation, or limiting safety system settings.

4 7

ATTACHMENT 1 Evaluation of Proposed Change Therefore, the proposed change does not involve a significant increase in the probability or consequences of an accident previously evaluated.

2.

Does the proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN`s inserts and the required completion date for installation. There are no changes to the SFP criticality analysis associated with the proposed change. No physical changes to the plant are proposed, and there are no changes to the manner in which the plant is operated. Rather, the proposed change is administrative because it involves removing License Conditions that have either been satisfied or that are no longer applicable.

Therefore, the proposed change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

Does the proposed change involve a significant reduction in a margin of safety?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-lN inserts and the required completion date for installation. Plant safety margins are established through limiting conditions for operation, limiting safety system settings, and safety limits specified in Technical Specifications. The proposed change does not alter these established safety margins. The proposed change does not alter the criticality analysis for the SFP and does not affect the SFP criticality safety margin. The proposed change is administrative because it involves removing License Conditions that have either been satisfied or that are no longer applicable.

Therefore, the proposed change does not involve a significant reduction in a margin of safety.

Based on the above evaluation, EGC concludes that the proposed amendment presents no significant hazards consideration under the standards set forth in 10 CFR 50.92, paragraph (c) and accordingly a finding of no significant hazards consideration is ATTACHMENT 1 Evaluation of Proposed Change Therefore, the proposed change does not involve a significant increase in the probability or consequences of an accident previously evaluated.

2.

Does the proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN inserts and the required completion date for installation. There are no changes to the SFP criticality analysis associated with the proposed change. No physical changes to the plant are proposed, and there are no changes to the manner in which the plant is operated. Rather, the proposed change is administrative because it involves removing License Conditions that have either been satisfied or that are no longer applicable.

Therefore, the proposed change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the proposed change involve a significant reduction in a margin of safety?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN inserts and the required completion date for installation. Plant safety margins are established through limiting conditions for operation, limiting safety system settings, and safety limits specified in Technical Specifications. The proposed change does not alter these established safety margins. The proposed change does not alter the criticality analysis for the SFP and does not affect the SFP criticality safety margin. The proposed change is administrative because it involves removing License Conditions that have either been satisfied or that are no longer applicable.

Therefore, the proposed change does not involve a significant reduction in a margin of safety.

Based on the above evaluation, EGC concludes that the proposed amendment presents no significant hazards consideration under the standards set forth in 10 CFR 50.92, paragraph (c), and accordingly, a finding of no significant hazards consideration is justified.

50f 7 ATTACHMENT 1 Evaluation of Proposed Change Therefore, the proposed change does not involve a significant increase in the probability or consequences of an accident previously evaluated.

2.

Does the proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN inserts and the required completion date for installation. There are no changes to the SFP criticality analysis associated with the proposed change. No physical changes to the plant are proposed, and there are no changes to the manner in which the plant is operated. Rather, the proposed change is administrative because it involves removing License Conditions that have either been satisfied or that are no longer applicable.

Therefore, the proposed change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the proposed change involve a significant reduction in a margin of safety?

Response: No The proposed change removes License Conditions within the LSCS Unit 2 Operating License related to interim configurations of the SFP during the installation of the NETCO-SNAP-IN inserts and the required completion date for installation. Plant safety margins are established through limiting conditions for operation, limiting safety system settings, and safety limits specified in Technical Specifications. The proposed change does not alter these established safety margins. The proposed change does not alter the criticality analysis for the SFP and does not affect the SFP criticality safety margin. The proposed change is administrative because it involves removing License Conditions that have either been satisfied or that are no longer applicable.

Therefore, the proposed change does not involve a significant reduction in a margin of safety.

Based on the above evaluation, EGC concludes that the proposed amendment presents no significant hazards consideration under the standards set forth in 10 CFR 50.92, paragraph (c), and accordingly, a finding of no significant hazards consideration is justified.

50f 7

ATTACHMENT 1 Evaluation of Proposed Change 4.2 Conclusions In conclusion, based on the considerations discussed above, (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or the health and safety of the public.

5.0 ENVIRONMENTAL CONSIDERATION

EGC has determined that the proposed amendment would change a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR 20, "Standards for Protection Against Radiation." However, the proposed amendment does not involve: (i) a significant hazards consideration, (ii) a significant change in the types or significant increase in the amounts of any effluent that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure. Accordingly, the proposed amendment meets the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22, "Criterion for categorical exclusion; identification of licensing and regulatory actions eligible for categorical exclusion or otherwise not requiring environmental review,"

paragraph (c)(9). Therefore, pursuant to 10 CFR 51.22, paragraph (b), no environmental impact statement or environmental assessment needs to be prepared in connection with the proposed amendment.

4.2 Conclusions ATTACHMENT 1 Evaluation of Proposed Change In conclusion, based on the considerations discussed above, (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or the health and safety of the public.

5.0 ENVIRONMENTAL CONSIDERATION

EGC has determined that the proposed amendment would change a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR 20, "Standards for Protection Against Radiation." However, the proposed amendment does not involve: (i) a significant hazards consideration, (ii) a significant change in the types or significant increase in the amounts of any effluent that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure. Accordingly, the proposed amendment meets the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22, "Criterion for categorical exclusion; identification of licensing and regulatory actions eligible for categorical exclusion or otherwise not requiring environmental review,"

paragraph (c)(9). Therefore, pursuant to 10 CFR 51.22, paragraph (b), no environmental impact statement or environmental assessment needs to be prepared in connection with the proposed amendment.

Page 6 7

4.2 Conclusions ATTACHMENT 1 Evaluation of Proposed Change In conclusion, based on the considerations discussed above, (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or the health and safety of the public.

5.0 ENVIRONMENTAL CONSIDERATION

EGC has determined that the proposed amendment would change a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR 20, "Standards for Protection Against Radiation." However, the proposed amendment does not involve: (i) a significant hazards consideration, (ii) a significant change in the types or significant increase in the amounts of any effluent that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure. Accordingly, the proposed amendment meets the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22, "Criterion for categorical exclusion; identification of licensing and regulatory actions eligible for categorical exclusion or otherwise not requiring environmental review,"

paragraph (c)(9). Therefore, pursuant to 10 CFR 51.22, paragraph (b), no environmental impact statement or environmental assessment needs to be prepared in connection with the proposed amendment.

Page 6 7

ATTACHMENT 1 Evaluation of Proposed Change

6.0 REFERENCES

Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "License Amendment Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks," dated October 5, 2009 2.

Letter from E. A. Brown (U.S. NRC) to M. J. Pacilio (Exelon Generation Company, LLC),

"LaSalle County Station, Units 1 and 2, Issuance of Amendments Concerning Spent Fuel Neutron Absorbers (TAC Nos. ME2376 and ME2377) (RS-09-133)," dated January 28, 2011 3.

Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Withdrawal of License Amendment Request Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks and the Timeline for Implementation,"

dated January 6, 2012 4.

Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "License Amendment Request Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks and the Timeline for Implementation," dated October 26, 2011 5.

Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Completion of License Condition 2.C.(31) Associated with Unit 2 Spent Fuel Pool Storage Racks," dated October 20, 2011

6.0 REFERENCES

ATTACHMENT 1 Evaluation of Proposed Change

1. Letter from P. R. Simpson (Exelon Generation Company, LLC) to u. S. NRC, "License Amendment Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks," dated October 5, 2009

2. Letter from E. A. Brown (U.S. NRC) to M. J. Pacilio (Exelon Generation Company, LLC),

"LaSalle County Station, Units 1 and 2, Issuance of Amendments Concerning Spent Fuel Neutron Absorbers (TAC Nos. ME2376 and ME2377) (RS-09-133)," dated January 28,2011

3. Letter from P. R. Simpson (Exelon Generation Company, LLC) to u. S. NRC, "Withdrawal of License Amendment Request Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks and the Timeline for Implementation,"

dated January 6, 2012

4. Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "License Amendment Request Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks and the Timeline for Implementation," dated October 26, 2011

5. Letter from P. R. Simpson (Exelon Generation Company, LLC) to u. S. NRC, "Completion of License Condition 2.C.(31) Associated with Unit 2 Spent Fuel Pool Storage Racks," dated October 20,2011 7

7

6.0 REFERENCES

ATTACHMENT 1 Evaluation of Proposed Change

1. Letter from P. R. Simpson (Exelon Generation Company, LLC) to u. S. NRC, "License Amendment Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks," dated October 5, 2009

2. Letter from E. A. Brown (U.S. NRC) to M. J. Pacilio (Exelon Generation Company, LLC),

"LaSalle County Station, Units 1 and 2, Issuance of Amendments Concerning Spent Fuel Neutron Absorbers (TAC Nos. ME2376 and ME2377) (RS-09-133)," dated January 28,2011

3. Letter from P. R. Simpson (Exelon Generation Company, LLC) to u. S. NRC, "Withdrawal of License Amendment Request Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks and the Timeline for Implementation,"

dated January 6, 2012

4. Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "License Amendment Request Regarding the Use of Neutron Absorbing Inserts in Unit 2 Spent Fuel Pool Storage Racks and the Timeline for Implementation," dated October 26, 2011

5. Letter from P. R. Simpson (Exelon Generation Company, LLC) to u. S. NRC, "Completion of License Condition 2.C.(31) Associated with Unit 2 Spent Fuel Pool Storage Racks," dated October 20,2011 7

7

ATTACHMENT 2 Markup of Proposed Operating License Pages LaSalle County Station, Unit 2 Facility Operating License No. NPF-18 REVISED OPERATING LICENSE PAGES Page 8 ATTACHMENT 2 Markup of Proposed Operating License Pages LaSalle County Station, Unit 2 Facility Operating License No. NPF-18 REVISED OPERATING LICENSE PAGES Page 8 ATTACHMENT 2 Markup of Proposed Operating License Pages LaSalle County Station, Unit 2 Facility Operating License No. NPF-18 REVISED OPERATING LICENSE PAGES Page 8

8-8/44 License No. NPF-18 (c)

The first performance of the periodic measurement of CRE pressure, Specification 5.5.15.d, shall be within 24 months, plus the 6 months allowed by SR 3.0.2, as measured from the date of the most recent successful pressure measurement test, or within 6 months if not performed previously.

496 (30) 11 it1/')2111 Am. 189 01,£2811 +

Am. 189 01128/1 ~ ~

License No. NPF-18 (c)

The first performance of the periodic measurement of eRE pressure, Specification S.S.1S.d, shall be within 24 months, plus the 6 months allowed by SR 3.0.2, as measured from the date of the most recent successful pressure measurement test, or within 6 months if not performed previously.

(30)

Beginning 120 days after the bSgS Unit 2 Fefueling outage ~ d (b2R13) and until Ootebor 28, 20~ ~, tho storogo oolls in the roek modules without NE+gO SN,~,P IN\\\\) inserts will be plaaed into one of throo aategeries:

(31 UflfestFieted, RestFioted and Unl:lsable.

~ Unrestrioted will 130 oells 'Nhose minimum panel s1Q afeal density is greater than or ofl:lal to 0.01e7 gfeffl2, YAfestFieted cells may contain fuol assemblies up to the ma)(iml:lrn reaotivity identified in

+S 4.a.1A.d.

~ Restricted will be cells whose rniAimurn panol s1Q areal density is bet\\veen 0.01e7 g/om2 SAd 0.0116 gtem2* Restrieted oo/ls will only oontain bSgS !:Jnits 1 aRd 2 gyole 1 GeReral Eleotric (G6:) and GIii44'fuel assernblies.

~ !:Jnl:lsable will be oolls whose minirnl:lm panel g!Q areal density is less thaR or efual te O.O~ 16 g/om2. Unusable coils 'Nil! be administratively oeRtrelled to reFRain eFRpty Of any fuel asseFRbly.

AfteF Ootober 28, 2011, for tho storage oolls in lFie rook rnedl:lles 'Ilithol:ft NETGO SNAP IN\\\\) insorts in the bSgS !:Jnil 2 SFP, the following oategories will apFHY: !:Jnrestrioted, Rostriotod, and Unl:lsable.

~ UnrestFioted will ae Gells wFiose minimum paR~ g!Q areal density is greater thaR OF efl:lal t04~O g/oFR2, !:Jnr8stristed sells may sontain fuel assemblies blp to the FRm<iml:lm reasti'Jity ideRtified in

+S 4.3.1A.d.

~ Restrictod will be Gells whose miRiFRblFR panol s1Q aroal density is eetweeR Q.Q2QQ glsrn2 and 0.01e7 glem2. Rostrioted sells will only sORtain bSgS !:JRits 1 and 2 GyGle 1 G6: aRd Gli14 fl:lel assernblios.

Am. 189 01,£2811 +

Am. 189 01128/1 ~ ~

License No. NPF-18 (c)

The first performance of the periodic measurement of eRE pressure, Specification S.S.1S.d, shall be within 24 months, plus the 6 months allowed by SR 3.0.2, as measured from the date of the most recent successful pressure measurement test, or within 6 months if not performed previously.

(30)

Beginning 120 days after the bSgS Unit 2 Fefueling outage ~ d (b2R13) and until Ootebor 28, 20~ ~, tho storogo oolls in the roek modules without NE+gO SN,~,P IN\\\\) inserts will be plaaed into one of throo aategeries:

(31 UflfestFieted, RestFioted and Unl:lsable.

~ Unrestrioted will 130 oells 'Nhose minimum panel s1Q afeal density is greater than or ofl:lal to 0.01e7 gfeffl2, YAfestFieted cells may contain fuol assemblies up to the ma)(iml:lrn reaotivity identified in

+S 4.a.1A.d.

~ Restricted will be cells whose rniAimurn panol s1Q areal density is bet\\veen 0.01e7 g/om2 SAd 0.0116 gtem2* Restrieted oo/ls will only oontain bSgS !:Jnits 1 aRd 2 gyole 1 GeReral Eleotric (G6:) and GIii44'fuel assernblies.

~ !:Jnl:lsable will be oolls whose minirnl:lm panel g!Q areal density is less thaR or efual te O.O~ 16 g/om2. Unusable coils 'Nil! be administratively oeRtrelled to reFRain eFRpty Of any fuel asseFRbly.

AfteF Ootober 28, 2011, for tho storage oolls in lFie rook rnedl:lles 'Ilithol:ft NETGO SNAP IN\\\\) insorts in the bSgS !:Jnil 2 SFP, the following oategories will apFHY: !:Jnrestrioted, Rostriotod, and Unl:lsable.

~ UnrestFioted will ae Gells wFiose minimum paR~ g!Q areal density is greater thaR OF efl:lal t04~O g/oFR2, !:Jnr8stristed sells may sontain fuel assemblies blp to the FRm<iml:lm reasti'Jity ideRtified in

+S 4.3.1A.d.

~ Restrictod will be Gells whose miRiFRblFR panol s1Q aroal density is eetweeR Q.Q2QQ glsrn2 and 0.01e7 glem2. Rostrioted sells will only sORtain bSgS !:JRits 1 and 2 GyGle 1 G6: aRd Gli14 fl:lel assernblios.