FRS Facility Detail Report


EXELON LASALLE COUNTY STATION

EPA Registry Id: 110037151293
2601 N 21ST RD
MARSEILLES, IL 61341


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:
AGENCY COMPLIANCE AND ENFORCEMENT SYSTEMS
EXELON LASALLE COUNTY STATION 170000107079 STATE MASTER ACES
-0990505001
HAZARDOUS WASTE PROGRAM
-099802AAA
AIR PROGRAM
-0990505001
REFUSE DISPOSAL
-0990505001
SOLID WASTE PROGRAM
-IL0048151
NPDES PERMIT
-ILR10A440
NPDES PERMIT
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CONSTELLATION GENERATION COMPANY LLC IL0048151 ICIS-NPDES MAJOR ICIS 10/30/2023 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
ICIS-AIR (AIR)
CONSTELLATION LASALLE CO STATION IL000099802AAA AIR SYNTHETIC MINOR ICIS 11/12/2014
AIR FACILITY SYSTEM
EXELON LASALLE COUNTY STATION 1709900086 AIR SYNTHETIC MINOR (OPERATING) AIRS/AFS 05/16/2014
EMISSION INVENTORY SYSTEM (EIS)
CONSTELLATION LASALLE CO STATION 4461411 AIR EMISSIONS CLASSIFICATION UNKNOWN EIS 01/30/2025
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
LASALLE COUNTY STATION ILR10I757 STORM WATER CONSTRUCTION ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
AGENCY COMPLIANCE AND ENFORCEMENT SYSTEMS
EXELON LASALLE BLDG 21 170001641392 STATE MASTER ACES

EMISSIONS & GENERATION RESOURCE INTEGRATED DATABASE
LASALLE GENERATING STATION 6026 ELECTRIC POWER GENERATOR (NUCLEAR BASED) EGRID 02/24/2020
ENERGY INFORMATION ADMINISTRATION-860 (EIA-860) DATABASE
LASALLE GENERATING STATION 6026 ELECTRIC GENERATOR EIA-860 10/06/2020
SAFE DRINKING WATER INFORMATION SYSTEM
CONSTELLATION/LASALLE CNTY GEN STATION IL3093054 NON-TRANSIENT NON-COMMUNITY WATER SYSTEM SFDW

AGENCY COMPLIANCE AND ENFORCEMENT SYSTEMS
EXELON GENERATION CO, LLC 170001460489 STATE MASTER ACES
-IL0048151
NPDES PERMIT
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
LASALLE COUNTY GENERATING STATION ILR10ZC7K ICIS-NPDES NON-MAJOR ICIS 03/20/2024
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
LASALLE COUNTY GENERATING STATION ILR10ZC7K STORM WATER CONSTRUCTION ICIS 03/20/2024
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
CONSTELLATION ENERGY GENERATION LASALLE GENERATING STATION ILD000803643 SQG (Y) RCRAINFO

SAFE DRINKING WATER INFORMATION SYSTEM
CONSTELLATION/LASALLE CNTY GEN STATION-TREATMENT PLANT IL3093054 6472 WATER TREATMENT PLANT SFDW

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CONSTELLATION GENERATION COMPANY, LLC - LA SALLE COUNTY GENERATING STATION ILG870024 ICIS-NPDES NON-MAJOR ICIS 09/07/2023 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
AGENCY COMPLIANCE AND ENFORCEMENT SYSTEMS
LA SALLE COUNTY STATION 170001564466 STATE MASTER ACES
-ILR10A440
NPDES PERMIT
BIENNIAL REPORTERS
CONSTELLATION ENERGY GENERATION LASALLE GENERATING STATION ILD000803643 HAZARDOUS WASTE BIENNIAL REPORTER RCRAINFO 12/31/2019
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
LASALLE COUNTY STATION ILR10I757 ICIS-NPDES NON-MAJOR ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY

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

AIR
4911
ELECTRIC SERVICES

AIRS/AFS
4911
ELECTRIC SERVICES

Facility Codes and Flags

EPA Region: 05
Duns Number:
Congressional District Number: 16
Legislative District Number:
HUC Code/Watershed: 07120005 / UPPER ILLINOIS
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
LASALLE GENERATING STATION EGRID
EXELON GENERATION COMPANY LASALLE COUNTY STATION NPDES
EXELON LASALLE CTY STATION RCRAINFO
EXELON/LASALLE-TREATMENT PLANT SFDW
LA SALLE COUNTY STATION ACES
EXELON GEN CO LASALLE STATION RCRAINFO
EXELON/LASALLE SFDW
LASALLE COUNTY STATION NPDES
EXELON GENERATION CO, LLC AIRS/AFS
EXELON LASALLE BLDG 21 ACES

Organizations

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


TRANSMISSION OR DISTRIBUTION SYSTEM OWNER
COMMONWEALTH EDISON CO
EIA-860


OWNER/OPERATOR
COMMONWEALTH EDISON CO
EIA-860


MAILING ADDRESS
EXELON GENERATIONCOMPANY, LLC, GENERATION SUPPORT
NPDES
View
MAILING ADDRESS
EXELON GENERATION-LASALLE
NPDES
View
MAILING ADDRESS
EXELON GENERATION
NPDES
View
PARENT COMPANY
COMMONWEALTH EDISON CO
EGRID


PARENT COMPANY
EXELON NUCLEAR
EIA-860
View

National Industry Classification System Codes (NAICS)

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

AIR 221113 NUCLEAR ELECTRIC POWER GENERATION.
AIRS/AFS 221113 NUCLEAR ELECTRIC POWER GENERATION.
EIS 221113 NUCLEAR ELECTRIC POWER GENERATION.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
MAILING ADDRESS 4300 WINFIELD RD WARRENVILLE IL 60555 NPDES
MAILING ADDRESS 2601 N 21ST RD MARSEILLES IL 61341 NPDES
REGULATORY CONTACT 2601 N 21ST RD MARSEILLES IL 61341-9757 RCRAINFO
FACILITY MAILING ADDRESS 2601 N 21ST RD MARSEILLES IL 61341-9757 AIRS/AFS
PARENT COMPANY 4300 WINFIELD RD WARRENVILLE IL 60555 EIA-860
MAILING ADDRESS GENERATION SUPPORT WARRENVILLE IL 60555 NPDES
ADMINISTRATIVE CONTACT 2601 N. 21ST ROAD MARSEILLES IL 61341 SFDW
FACILITY MAILING ADDRESS 2601 N 21ST RD MARSEILLES IL 61341-9757 RCRAINFO

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
ADMINISTRATIVE CONTACT
VALENTINE, BRENTON
815-342-4002x
SFDW
View
REGULATORY CONTACT
BRENT VALENTINE
815-415-3235
RCRAINFO
View

Query executed on: OCT-14-2025