ML20153A804

Co. - Issuance of Amendments Revising Emergency Action RA3

ML20153A804
Person / Time
Site:	Monticello, Dresden, Byron, Braidwood, Clinton, Quad Cities, LaSalle
Issue date:	07/31/2020
From:	Blake Purnell NRC/NRR/DORL/LPL3
To:	Bryan Hanson Exelon Generation Co
Blake Purnell - NRR/DORL 301-415-1380
References
EPID L-2019-LLA-0183
Download: ML20153A804 (33)

Text

July 31, 2020 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer (CNO)

Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

BRAIDWOOD STATION, UNITS 1 AND 2; BYRON STATION, UNIT NOS. 1 AND 2; CLINTON POWER STATION, UNIT NO. 1; DRESDEN NUCLEAR POWER STATION, UNITS 1, 2, AND 3; LASALLE COUNTY STATION, UNITS 1 AND 2; AND QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2 ISSUANCE OF AMENDMENTS REVISING EMERGENCY ACTION LEVEL RA3 (EPID L-2019-LLA-0183)

Dear Mr. Hanson:

The U.S. Nuclear Regulatory Commission (NRC) has issued the following enclosed amendments in response to the Exelon Generation Company, LLC application dated August 23, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML19239A006):

1.

Amendment No. 213 to Renewed Facility Operating License No. NPF-72 and Amendment No. 213 to Renewed Facility Operating License No. NPF-77 for Braidwood Station, Units 1 and 2, respectively;

2.

Amendment No. 217 to Renewed Facility Operating License No. NPF-37 and Amendment No. 217 to Renewed Facility Operating License No. NPF-66 for Byron Station, Unit Nos. 1 and 2, respectively;

3.

Amendment No. 234 to Facility Operating License No. NPF-62 for Clinton Power Station, Unit No. 1;

4.

Amendment No. 49 to Facility Operating License No. DPR-2, Amendment No. 271 to Renewed Facility Operating License No. DPR-19, and Amendment No. 264 to Renewed Facility Operating License No. DPR-25 for Dresden Nuclear Power Station, Units 1, 2, and 3, respectively;

5.

Amendment No. 246 to Renewed Facility Operating License No. NPF-11 and Amendment No. 232 to Renewed Facility Operating License No. NPF-18 for LaSalle County Station, Units 1 and 2, respectively; and

6.

Amendment No. 284 to Renewed Facility Operating License No. DPR-29 and Amendment No. 280 to Renewed Facility Operating License No. DPR-30 for Quad Cities Nuclear Power Station, Units 1 and 2, respectively; The amendments revise the emergency plan for each site by changing emergency action level RA3 to remove specific references to radiation monitoring instrumentation.

A copy of the NRC staffs Safety Evaluation is also enclosed. The Notice of Issuance will be included in the Commissions biweekly Federal Register notice.

Sincerely,

/RA/

Blake A. Purnell, Project Manager Plant Licensing Branch III Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. STN 50-456, STN 50-457, 72-73, STN 50-454, STN 50-455, 72-68, 50-461, 72-1046,50-010, 50-237, 50-249, 72-37, 50-373, 50-374, 72-70, 50-254, 50-265, and 72-53

Enclosures:

1. Amendment No. 213 to NPF-72

2. Amendment No. 213 to NPF-77

3. Amendment No. 217 to NPF-37

4. Amendment No. 217 to NPF-66

5. Amendment No. 234 to NPF-62

6. Amendment No. 49 to DPR-2

7. Amendment No. 271 to DPR-19

8. Amendment No. 264 to DPR-25

9. Amendment No. 246 to NPF-11

10. Amendment No. 232 to NPF-18

11. Amendment No. 284 to DPR-29

12. Amendment No. 280 to DPR-30

13. Safety Evaluation cc: Listserv

EXELON GENERATION COMPANY, LLC DOCKET NO. STN 50-456 BRAIDWOOD STATION, UNIT 1 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 213 Renewed License No. NPF-72

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. NPF-72 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:55:33 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO. STN 50-457 BRAIDWOOD STATION, UNIT 2 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 213 Renewed License No. NPF-77

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. NPF-77 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:56:01 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO. STN 50-454 BYRON STATION, UNIT NO. 1 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 217 Renewed License No. NPF-37

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. NPF-37 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:56:28 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO. STN 50-455 BYRON STATION, UNIT NO. 2 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 217 Renewed License No. NPF-66

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. NPF-66 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:57:02 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO. 50-461 CLINTON POWER STATION, UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 234 License No. NPF-62

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Facility Operating License No. NPF-62 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:57:30 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO.50-010 DRESDEN NUCLEAR POWER STATION, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 49 License No. DPR-2

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Facility Operating License No. DPR-2 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:58:25 -04'00' EXELON GENERATION COMPANY, LLC DOCKET NO. 50-237 DRESDEN NUCLEAR POWER STATION, UNIT 2 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 271 Renewed License No. DPR-19 1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. DPR-19 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:58:56 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO. 50-249 DRESDEN NUCLEAR POWER STATION, UNIT 3 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 264 Renewed License No. DPR-25

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. DPR-25 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 11:59:33 -04'00'

EXELON GENERATION COMPANY, LLC DOCKET NO. 50-373 LASALLE COUNTY STATION, UNIT 1 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 246 Renewed License No. NPF-11

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. NPF-11 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 12:00:13 -04'00'

0 EXELON GENERATION COMPANY, LLC DOCKET NO. 50-374 LASALLE COUNTY STATION, UNIT 2 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 232 Renewed License No. NPF-18

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. NPF-18 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 12:00:51 -04'00'

1 EXELON GENERATION COMPANY, LLC AND MIDAMERICAN ENERGY COMPANY DOCKET NO. 50-254 QUAD CITIES NUCLEAR POWER STATION, UNIT 1 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 284 Renewed License No. DPR-29

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. DPR-29 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 12:01:27 -04'00'

2 EXELON GENERATION COMPANY, LLC AND MIDAMERICAN ENERGY COMPANY DOCKET NO. 50-265 QUAD CITIES NUCLEAR POWER STATION, UNIT 2 AMENDMENT TO RENEWED FACILITY OPERATING LICENSE Amendment No. 280 Renewed License No. DPR-30

1.

The U.S. Nuclear Regulatory Commission (NRC or Commission) has found that:

A.

The application for amendment by Exelon Generation Company, LLC (Exelon) dated August 23, 2019, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.

2.

Accordingly, Renewed Facility Operating License No. DPR-30 is hereby amended by revision to the emergency plan as set forth in Exelons application dated August 23, 2019, and evaluated in the NRC staffs safety evaluation for this amendment.

3.

This license amendment is effective as of the date of its issuance and shall be implemented on or before December 31, 2020.

FOR THE NUCLEAR REGULATORY COMMISSION Ho K. Nieh, Director Office of Nuclear Reactor Regulation Date of Issuance: July 31, 2020 Mirela Gavrilas Digitally signed by Mirela Gavrilas Date: 2020.07.31 12:01:55 -04'00'

3 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 213 TO RENEWED FACILITY OPERATING LICENSE NO. NPF-72 AMENDMENT NO. 213 TO RENEWED FACILITY OPERATING LICENSE NO. NPF-77 AMENDMENT NO. 217 TO RENEWED FACILITY OPERATING LICENSE NO. NPF-37 AMENDMENT NO. 217 TO RENEWED FACILITY OPERATING LICENSE NO. NPF-66 AMENDMENT NO. 234 TO FACILITY OPERATING LICENSE NO. NPF-62 AMENDMENT NO. 49 TO FACILITY OPERATING LICENSE NO. DPR-2 AMENDMENT NO. 271 TO RENEWED FACILITY OPERATING LICENSE NO. DPR-19 AMENDMENT NO. 264 TO RENEWED FACILITY OPERATING LICENSE NO. DPR-25 AMENDMENT NO. 246 TO RENEWED FACILITY OPERATING LICENSE NO. NPF-11 AMENDMENT NO. 232 TO RENEWED FACILITY OPERATING LICENSE NO. NPF-18 AMENDMENT NO. 284 TO RENEWED FACILITY OPERATING LICENSE NO. DPR-29 AMENDMENT NO. 280 TO RENEWED FACILITY OPERATING LICENSE NO. DPR-30 EXELON GENERATION COMPANY, LLC BRAIDWOOD STATION, UNITS 1 AND 2 BYRON STATION, UNIT NOS. 1 AND 2 CLINTON POWER STATION, UNIT NO. 1 DRESDEN NUCLEAR POWER STATION, UNITS 1, 2, AND 3 LASALLE COUNTY STATION, UNITS 1 AND 2 QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2 DOCKET NOS. STN 50-456, STN 50-457, 72-73, STN 50-454, STN 50-455, 72-68, 50-461, 72-1046,50-010, 50-237, 50-249, 72-37, 50-373, 50-374, 72-70 50-254, 50-265, AND 72-53

1.0 INTRODUCTION

By application dated August 23, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML19239A006), Exelon Generation Company, LLC (Exelon) submitted a license amendment request for Braidwood Station (Braidwood), Units 1 and 2; Byron Station (Byron), Unit Nos. 1 and 2; Clinton Power Station (Clinton), Unit No. 1; Dresden Nuclear Power Station (Dresden), Units 1, 2, and 3; LaSalle County Station (LaSalle), Units 1 and 2; and Quad Cities Nuclear Power Station (Quad Cities), Units 1 and 2 (collectively, the sites). The proposed amendments revise the emergency plan for each site by changing emergency action level (EAL) RA3 to remove specific references to radiation monitoring instrumentation.

2.0 REGULATORY EVALUATION

2.1 Background

The current EAL schemes for Exelons sites were approved by the U.S. Nuclear Regulatory Commission (NRC or Commission) by amendments issued on July 28, 2015 (ADAMS Accession No. ML15141A058), and were revised by amendments issued on February 14, 2020 (ADAMS Accession No. ML19331A725). These EAL schemes are based on the Nuclear Energy Institutes (NEIs) guidance in NEI 99-01, Revision 6, Development of Emergency Action Levels for Non-Passive Reactors, which was endorsed by the NRC by letter dated March 28, 2013 (ADAMS Package Accession No. ML13091A209). However, these EAL schemes also have some fleet-wide and plant-specific differences from the NEI guidance.

The EAL schemes are specific to each site and encompass the operating reactors, a permanently shut down and defueled reactor, and the independent spent fuel storage installations located at the sites. Clinton Unit No. 1, Dresden Units 2 and 3, LaSalle Units 1 and 2, and Quad Cities Units 1 and 2 are all operating boiling-water reactors. Braidwood Units 1 and 2 and Byron Unit Nos. 1 and 2 are operating pressurized-water reactors. Dresden Unit 1 is a permanently shut down and defueled reactor co-located with Dresden Units 2 and 3.

Each site has an onsite independent spent fuel storage installation. Spent fuel from Dresden Unit 1 is currently stored in the onsite independent spent fuel storage installation and in the Dresden Unit 3 spent fuel pool.

2.2 Description of Proposed Changes Currently, EAL RA3.1 for each site requires the declaration of an alert if the dose rate is greater than 15 millirem per hour in the main control room or central alarm station. EAL RA3.1 lists the specific instrumentation used to monitor the radiation levels in the main control room. Exelon proposes to delete the reference to this instrumentation from EAL RA3.1 for each site.

2.3 Regulatory Requirements Title 10 of the Code of Federal Regulations (10 CFR), section 50.47, Emergency plans, sets forth emergency plan requirements for nuclear power reactors. Section 50.47(b) establishes the planning standards that the onsite and offsite emergency response plans must meet for NRC staff to make a finding that there is reasonable assurance that adequate protective measures can and will be taken in the event of a radiological emergency. Section 50.47(b)(4) of 10 CFR requires that onsite and offsite emergency response plans meet the following:

A standard emergency classification and action level scheme, the bases of which include facility system and effluent parameters, is in use by the nuclear facility licensee, and State and local response plans call for reliance on information provided by facility licensees for determinations of minimum initial offsite response measures.

The use of a standard emergency classification and action level scheme ensures that implementation methods are relatively consistent throughout the industry for a given reactor and containment design, but site-specific design considerations and preferences are permitted.

Section IV.B.1 of Appendix E, Emergency Planning and Preparedness for Production and Utilization Facilities, to 10 CFR Part 50, states, in part:

The means to be used for determining the magnitude of, and for continually assessing the impact of, the release of radioactive materials shall be described, including emergency action levels that are to be used as criteria for determining the need for notification and participation of local and State agencies, the Commission, and other Federal agencies, and the emergency action levels that are to be used for determining when and what type of protective measures should be considered within and outside the site boundary to protect health and safety. The emergency action levels shall be based on in-plant conditions and instrumentation in addition to onsite and offsite monitoring. By June 20, 2012, for nuclear power reactor licensees, these action levels must include hostile action that may adversely affect the nuclear power plant.

Section IV.C.1 of Appendix E to 10 CFR Part 50 states, in part: Emergency action levels (based not only on onsite and offsite radiation monitoring information but also on readings from a number of sensors that indicate a potential emergency, such as the pressure in containment and the response of the Emergency Core Cooling System) for notification of offsite agencies shall be described.

In accordance with 10 CFR 50.54(q)(2), licensees shall follow and maintain the effectiveness of an emergency plan that meets the requirements in 10 CFR Part 50, Appendix E, and the planning standards of 10 CFR 50.47(b). In accordance with 10 CFR 50.54(q)(4), Exelon determined that prior NRC approval is needed to implement the proposed change to the emergency plan for each site.

2.4 Guidance The EAL development guidance was initially established in Generic Letter 79-50,1 dated October 10, 1979 (ADAMS Accession No. ML031320278). This guidance was subsequently revised in the joint NRC and Federal Emergency Management Agency (FEMA) document NUREG-0654/FEMA-REP-1, Revision 1, Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants, dated November 1980 (ADAMS Accession No. ML040420012), which was endorsed by NRC Regulatory Guide 1.101, Revision 2, Emergency Planning and Preparedness for Nuclear Power Reactors, October 1981 (ADAMS Accession No. ML090440294),2 as an approach acceptable to the NRC for the development of an EAL scheme.

1 Untitled letter transmitting basis for emergency action levels.

2 Also see Regulatory Guide 1.101, Revision 3, dated August 1992, and Revision 4, dated July 2003 (ADAMS Accession Nos. ML003740302 and ML032020276, respectively).

As experience was gained with the implementation and use of EAL schemes, the industry issued revised EAL scheme development guidance to reflect lessons learned. NEI 99-01, Revision 6, is the most recent industry guidance endorsed by the NRC. Although the EAL development guidance contained in NEI 99-01, Revision 6, is generic and may not be entirely applicable for some non-passive, large light-water reactor designs, it bounds the most typical accident and event scenarios for which emergency response is necessary in a format that allows for industry standardization and consistent regulatory oversight. Licensees may choose to develop plant-specific EAL schemes using NEI 99-01, Revision 6, with appropriate plant-specific alterations.

NRC Regulatory Issue Summary (RIS) 2003-18, Use of NEI 99-01, Methodology for Development of Emergency Action Levels, Revision 4, Dated January 2003, dated October 8, 2003 (ADAMS Accession No. ML032580518), with supplements dated July 13, 2004, and December 12, 2005 (ADAMS Accession Nos. ML041550395 and ML051450482, respectively),

also provided guidance for developing or changing a standard EAL scheme. In summary, the NRC staff considers NEI 99-01, Revision 6, to be an acceptable method to develop site-specific EALs that meet the requirements of Sections IV.B and IV.C of Appendix E to 10 CFR Part 50 and 10 CFR 50.47(b)(4), with the understanding that licensees may develop EALs that differ from NEI 99-01, Revision 6, because of plant-specific conditions.

3.0 TECHNICAL EVALUATION

The intent of EAL RA3 is to ensure that an alert is declared when elevated radiation levels in certain plant rooms and areas preclude or impede personnel from performing actions necessary to maintain normal plant operation or to perform a normal plant cooldown and shutdown. For the Exelon sites, EAL RA3.1 requires the declaration of an alert if the dose rate is greater than 15 millirem per hour in the main control room or central alarm station. Currently, EAL RA3.1 lists the specific instrumentation used to monitor the radiation levels in the main control room.

Exelon has proposed to delete the reference to this instrumentation from EAL RA3.1 for the sites. Exelon stated that this would allow the sites to use other reliable and effective methods for monitoring dose rates in the main control room for the purpose of meeting EAL RA3.1.

Exelon EAL RA3 is comparable to EAL AA3 in NEI 99-01, Revision 6. NEI EAL AA3.1 recommends an alert declaration if the dose rate is greater than 15 millirem per hour in the control room or central alarm station, but it does not indicate that site-specific instrumentation should be included in the EAL. Therefore, the NRC staff determined that the proposed change to Exelon EAL RA3.1 is acceptable because the proposed change does not affect the threshold used for the alert declaration and the revised EAL is consistent with the NRC-endorsed guidance in NEI 99-01, Revision 6.

Evaluation of Impact on EAL Scheme In addition to the evaluation of the individual change, the NRC staff also evaluated the impact of the change on the affected EAL set and the overall EAL scheme. Although the EALs must be site-specific, the staff reviewed the proposed EAL change to ensure the following key characteristics are maintained:

Consistency, including standardization of intent, if not in actual wording (i.e., the EALs would lead to similar decisions under similar circumstances at different plants);

Human factors engineering and user friendliness; Potential for emergency classification level upgrade only when there is an increasing threat to public health and safety; Ease of upgrading and downgrading the emergency classification level; Thoroughness in addressing issues regarding the completeness and accuracy of Appendix 1 to NUREG-0654 (i.e., the EALs are unambiguous and are based on site-specific indicators);

Technical completeness for each classification level; Logical progression in classification for multiple events; and The use of objective and observable values.

The proposed change to Exelon EAL RA3.1 is consistent with the NRC-endorsed guidance in NEI 99-01, Revision 6. Therefore, the NRC staff finds that, with the proposed change, the EAL schemes will continue to be consistent with a standard EAL scheme, as required by 10 CFR 50.47(b)(4).

The NRC staff determined that, with the proposed change, the EAL schemes will continue to use objective and observable values, are worded in a manner that addresses human factors engineering and user friendliness concerns, address issues regarding completeness and accuracy of Appendix 1 to NUREG-0654, follow logical progressions for escalating events, and allow for event downgrading and upgrading based upon the potential risk to the public health and safety. In addition, the staff verified that the revised EAL schemes remain technically complete for each classification level and consistent with EAL schemes implemented at similarly designed plants. Therefore, the staff determined that the revised EAL schemes are consistent with the key characteristics of an effective EAL scheme and meet the requirements of 10 CFR 50.47(b)(4) and Sections IV.B and IV.C of Appendix E to 10 CFR Part 50.

Based on its review, the NRC staff finds that the revised EAL schemes are acceptable and provide reasonable assurance that Exelon can and will take adequate protective measures in the event of a radiological emergency. Specifically, the staff concludes that Exelons proposed revisions to the EAL schemes for Braidwood Units 1 and 2, Byron Unit Nos. 1 and 2, Clinton Unit No. 1, Dresden Units 1, 2, and 3, LaSalle Units 1 and 2, and Quad Cities Units 1 and 2 are acceptable for implementation.

4.0 STATE CONSULTATION

In accordance with the Commissions regulations, the Illinois State official was notified of the proposed issuance of the amendments on June 1, 2020. The State official had no comments.

5.0 ENVIRONMENTAL CONSIDERATION

The amendments relate to changes in recordkeeping, reporting, or administrative procedures or requirements. Accordingly, the amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(10)(ii). Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.

6.0 CONCLUSION

The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) there is reasonable assurance that such activities will be conducted in compliance with the Commissions regulations, and (3) the issuance of the amendments will not be inimical to the common defense and security or to the health and safety of the public.

Principal Contributor: Raymond Hoffman, NSIR/DPR Date of issuance: July 31, 2020

ML20153A804

• email concurrence OFFICE NRR/DORL/LPL3/PM*

NRR/DORL/LPL3/LA*

NSIR/DPR/RLB/BC*

NAME BPurnell SRohrer JAnderson DATE 06/9/2020 06/9/2020 3/17/20 OFFICE OGC NLO*

NRR/DORL/LPL3/BC*

NMSS/DUWP/RDB/BC*

NAME JMcManus NSalgado (RKuntz for)

BWatson DATE 06/23/2020 06/30/2020 06/25/2020 OFFICE NRR/DORL/DD*

NRR/D*

DORL/LPL3/PM*

NAME GSuber HNieh (MGavrilas for)

BPurnell DATE 07/15/2020 07/31/2020 07/31/2020