FRS Facility Detail Report


EXELON BYRON GENERATING STATION

EPA Registry Id: 110000845701
4450 N GERMAN CHURCH RD
BYRON, IL 61010-9750


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
ICIS-AIR (AIR)
CONSTELLATION ENERGY GENERATION LLC-BYRON GENERATING STATION IL000141820AAA AIR SYNTHETIC MINOR ICIS 07/27/2022
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
EXELON GENERATION-BYRON STA ILR10J324 ICIS-NPDES NON-MAJOR ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
SAFE DRINKING WATER INFORMATION SYSTEM
CONSTELLATION BYRON GENERATING STATION-TREATMENT PLANT IL3093112 6475 WATER TREATMENT PLANT SFDW

EMISSIONS & GENERATION RESOURCE INTEGRATED DATABASE
BYRON GENERATING STATION 6023 ELECTRIC POWER GENERATOR (NUCLEAR BASED) EGRID 02/24/2020
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
EXELON GENERATION COMPANY LLC IL0048313 ICIS-NPDES MAJOR ICIS 03/05/2021 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
INTEGRATED COMPLIANCE INFORMATION SYSTEM EXELON BYRON GENERATING STATION 3600106931 ENFORCEMENT/COMPLIANCE ACTIVITY ICIS 10/29/2015
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CONSTELLATION ENERGY ILG870011 ICIS-NPDES NON-MAJOR NPDES 08/22/2023 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
EXELON GENERATION-BYRON STA ILR10J324 STORM WATER CONSTRUCTION ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
SAFE DRINKING WATER INFORMATION SYSTEM
CONSTELLATION BYRON GENERATING STATION IL3093112 NON-TRANSIENT NON-COMMUNITY WATER SYSTEM SFDW

AGENCY COMPLIANCE AND ENFORCEMENT SYSTEMS
EXELON GENERATION CO LLC 170000132871 STATE MASTER ACES
-1410105002
SOLID WASTE PROGRAM
-ILR109424
NPDES PERMIT
-IL0048313
NPDES PERMIT
-1410105002
HAZARDOUS WASTE PROGRAM
-141820AAA
AIR PROGRAM
ENERGY INFORMATION ADMINISTRATION-860 (EIA-860) DATABASE
BYRON GENERATING STATION 6023 ELECTRIC GENERATOR EIA-860 10/06/2020
AIR FACILITY SYSTEM
EXELON GENERATION CO LLC 1714100069 AIR SYNTHETIC MINOR (OPERATING) AIRS/AFS 05/16/2014
EMISSION INVENTORY SYSTEM (EIS)
CONSTELLATION ENERGY GENERATION LLC-BYRON GENERATING STATION 4062711 AIR EMISSIONS CLASSIFICATION UNKNOWN EIS 01/30/2025
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
CONSTELLATION BYRON GENERATING STATION ILD000806521 SQG (Y) RCRAINFO

BIENNIAL REPORTERS
CONSTELLATION BYRON GENERATING STATION ILD000806521 HAZARDOUS WASTE BIENNIAL REPORTER RCRAINFO 12/31/2013
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
BYRON GENERATING STATION ILR10ZG16 ICIS-NPDES NON-MAJOR ICIS 08/18/2025
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
BYRON GENERATING STATION ILR10ZG16 STORM WATER CONSTRUCTION ICIS 08/18/2025

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
NPDES
4911
ELECTRIC SERVICES

AIRS/AFS
4911
ELECTRIC SERVICES

AIR
4911
ELECTRIC SERVICES

Facility Codes and Flags

EPA Region: 05
Duns Number:
Congressional District Number: 16
Legislative District Number:
HUC Code/Watershed: 07090005 / LOWER ROCK
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
BYRON GENERATING STATION EGRID
EXELON GENERATION-BYRON STA NPDES
EXELON BYRON NUCLEAR STATION RCRAINFO
EXELON CORPORATION HAZARDOUS WASTE REPORT
EXELON GENERATION CO LLC AIRS/AFS
EXELON CORPORATION BYRON STATION FRS
EXELON BYRON GENERATING STATION-TREATMENT PLANT SFDW

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OPERATOR
EXELON NUCLEAR
EGRID


ALTERNATE MAILING ADDRESS
EXELON GENERATION CO LLC
NPDES
View
MAILING ADDRESS
COMMONWEALTH EDISON CO
NPDES
View
OWNER
CONSTELLATION ENERGY GENERATION LLC
RCRAINFO
View
MAILING ADDRESS
EXELON GENERATION-BRYON STA
NPDES
View
PARENT COMPANY
EXELON NUCLEAR
EIA-860
View
PARENT COMPANY
COMMONWEALTH EDISON CO
EGRID


TRANSMISSION OR DISTRIBUTION SYSTEM OWNER
COMMONWEALTH EDISON CO
EIA-860


OWNER
COMMONWEALTH EDISON CO
NPDES
View
MAILING ADDRESS
EXELON GENERATION CO LLC
NPDES
View
OPERATOR
CONSTELLATION BYRON GENERATING STATION
RCRAINFO
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
RCRAINFO 221113 NUCLEAR ELECTRIC POWER GENERATION.
AIR 221113 NUCLEAR ELECTRIC POWER GENERATION.
EIA-860 22

AIRS/AFS 221113 NUCLEAR ELECTRIC POWER GENERATION.
EIS 221113 NUCLEAR ELECTRIC POWER GENERATION.
ICIS 237130 POWER AND COMMUNICATION LINE AND RELATED STRUCTURES CONSTRUCTION.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
MAILING ADDRESS 4450 N GERMAN CHURCH RD BYRON IL 61010-9794 NPDES
FACILITY MAILING ADDRESS 4450 N GERMAN CHURCH RD BYRON IL 61010-9794 RCRAINFO
MAILING ADDRESS 1411 OPUS PL STE 250 DOWNERS GROVE IL 60515-1182 NPDES
ALTERNATE MAILING ADDRESS 4450 N GERMAN CHURCH RD BYRON IL 61010-9794 NPDES
ADMINISTRATIVE CONTACT 4450 N. GERMAN CHURCH ROAD BYRON IL 61010 SFDW
OPERATOR 4300 WINFIELD RD WARRENVILLE IL 60555 RCRAINFO
OWNER 300 EXELON WAY KENNETT SQUARE PA 19348 RCRAINFO
REGULATORY CONTACT 4450 N GERMAN CHURCH RD BYRON IL 61010-9794 RCRAINFO
PARENT COMPANY 4300 WINFIELD RD WARRENVILLE IL 60555 EIA-860
MAILING ADDRESS 4450 NORTH GERMAN CHURCH ROAD BYRON IL 61010 NPDES
FACILITY MAILING ADDRESS 4300 WINFIELD RD WARRENVILLE IL 60555 AIRS/AFS
OWNER BYRON POWER STATION CHICAGO IL 606900767 NPDES
OPERATOR 4450 N GERMAN CHURCH RD BYRON IL 61010-9794 RCRAINFO

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
REGULATORY CONTACT
JEFFREY GOLICH
815-406-3206
RCRAINFO
View
COGNIZANT OFFICIAL
ZOE COX
8154063035
NPDES


ADMINISTRATIVE CONTACT
GOLICH, JEFFREY
815-406-3206x
SFDW
View
ADMINISTRATIVE CONTACT
GOLICH, JEFFREY
815-406-3206x
SFDW
View

Query executed on: OCT-14-2025