FRS Facility Detail Report


ENTERGY ARKANSAS, LLC. - UNION POWER STATION

EPA Registry Id: 110064642356
6497 CALION HIGHWAY
EL DORADO, AR 71730


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:
BIENNIAL REPORTERS
ENTERGY ARKANSAS, INC - UNION POWER STATION ARR000010348 HAZARDOUS WASTE BIENNIAL REPORTER RCRAINFO 12/31/2017
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
ENTERGY ARKANSAS, LLC ARR001499 ICIS-NPDES NON-MAJOR ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
COMPLIANCE AND EMISSIONS DATA REPORTING INTERFACE
ENTERGY ARKANSAS, LLC. - UNION POWER STATION CEDRI10105959 COMPLIANCE AND EMISSIONS REPORTING API 09/15/2021
EMISSION INVENTORY SYSTEM (EIS)
ENTERGY ARKANSAS, LLC - UNION POWER STATION 1016511 AIR EMISSIONS CLASSIFICATION UNKNOWN EIS 04/16/2025
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
ENTERGY ARKANSAS, LLC ARR001499 STORM WATER INDUSTRIAL ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
ENTERGY ARKANSAS, LLC. - UNION POWER STATION AR0049140 ICIS-NPDES MAJOR ICIS 01/23/2023 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

NPDES
4911
ELECTRIC SERVICES

Facility Codes and Flags

EPA Region: 06
Duns Number:
Congressional District Number: 04
Legislative District Number: 4
HUC Code/Watershed: 08040201 / LOWER OUACHITA-SMACKOVER
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land:

Alternative Names

No Alternative Names returned.

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
MAILING ADDRESS
UNION POWER PARTNERS, L.P.
NPDES
View
OPERATOR
ENTERGY ARKANSAS POWER, LLC
NPDES
View
MAILING ADDRESS
ENTERGY ARKANSAS LLC
NPDES
View
PARENT COMPANY
ENTERGY ARKANSAS LLC
EIS


FORMER OPERATOR
ENTERGY ARKANSAS POWER, LLC
NPDES
View
OWNER
UNION POWER PARTNERS, L.P.-UNION POWER STATION
NPDES
View
MAILING ADDRESS
ENTERGY ARKANSAS LLC
NPDES
View
FORMER MAILING ADDRESS
ENTERGY ARKANSAS LLC
NPDES
View
MAILING ADDRESS
UNION POWER PARTNERS, L.P.-UNION POWER STATION
NPDES
View
FORMER MAILING ADDRESS
ENTERGY ARKANSAS, INC.
NPDES
View
FORMER OPERATOR
UNION POWER PARTNERS, LP-UNION POWER STATION
NPDES
View
MAILING ADDRESS
ENTERGY ARKANSAS POWER, LLC
NPDES
View
FORMER MAILING ADDRESS
ENTERGY ARKANSAS LLC
NPDES
View
OPERATOR
ENTERGY ARKANSAS LLC
NPDES
View
OPERATOR
UNION POWER PARTNERS, LP-UNION POWER STATION
NPDES
View
OWNER
TPS ARKANSAS OPERATIONS CO
NPDES
View
MAILING ADDRESS
ENTERGY ARKANSAS POWER, LLC
NPDES
View
FORMER MAILING ADDRESS
ENTERGY ARKANSAS POWER, LLC
NPDES
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
EIS 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.
NPDES 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.
NPDES 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
OPERATOR 6497 CALION HIGHWAY EL DORADO AR 71730 NPDES
OPERATOR PO BOX 551 LITTLE ROCK AR 72203-0551 NPDES
FORMER OPERATOR 6434 CALION HWY EL DORADO AR 71730 NPDES
FORMER OPERATOR 425 WEST CAPITOL AVENUE LITTLE ROCK AR 72203 NPDES
OPERATOR 6434 CALION HIGHWAY ELDORADO AR 71730 NPDES
OWNER 6434 CALION HIGHWAY ELDORADO AR 71730 NPDES
OPERATOR 10055 GROGAN'S MILL RD.PARKWOOD II.SUITE 400 THE WOODLANDS TX 77380 NPDES
OPERATOR 2107 RESEARCH FOREST DR # 6 THE WOODLANDS TX 77380-4168 NPDES
FORMER MAILING ADDRESS 10055 GROGANS MILL ROAD, SUITE 400 THE WOODLANDS TX 77380 NPDES
FORMER OPERATOR PO BOX 551 LITTLE ROCK AR 72203 NPDES
MAILING ADDRESS UNION GENERATING STATION EL DORADO AR 71730 NPDES
MAILING ADDRESS 6434 CALION HIGHWAY ELDORADO AR 71730 NPDES
FORMER MAILING ADDRESS 425 WEST CAPITOL AVENUE LITTLE ROCK AR 72203 NPDES
MAILING ADDRESS PO BOX 551 LITTLE ROCK AR 72203-0551 NPDES
FORMER MAILING ADDRESS 6497 CALION HIGHWAY EL DORADO AR 71730 NPDES
OPERATOR 425 WEST CAPITOL AVENUE LITTLE ROCK AR 72203 NPDES
FORMER OPERATOR 10055 GROGANS MILL RD, PARKWOOD II, SUITE 400 THE WOODLANDS TX 77380 NPDES
MAILING ADDRESS 6497 CALION HIGHWAY EL DORADO AR 71730 NPDES
MAILING ADDRESS 425 WEST CAPITOL AVENUE LITTLE ROCK AR 72203 NPDES
OWNER UNION POWER STATION EL DORADO AR 71730 NPDES
MAILING ADDRESS 10055 GROGANS MILL ROAD, SUITE 400 THE WOODLANDS TX 77380 NPDES
FORMER OPERATOR 10055 GROGANS MILL ROAD, SUITE 400 THE WOODLANDS TX 77380 NPDES
FORMER MAILING ADDRESS PO BOX 551 LITTLE ROCK AR 72203-0551 NPDES
OPERATOR 425 WEST CAPITOL AVENUE LITTLE ROCK AR 72201 NPDES

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
OPERATOR
LOUISE DUNCAN
2812971831
NPDES
View
FORMER OPERATOR
WILLIAM PHIPPS
5013774033
NPDES
View
OPERATOR
THOMAS C. BURGER
8707482001
NPDES


FORMER OPERATOR
BEVERLY GALE
2812975538
NPDES
View
OPERATOR
BEVERLY GALE
2812975538
NPDES
View
OPERATOR
THOMAS BURGER
8707482000
NPDES
View
OPERATOR
LOUISE DUNCAN
2812971831
NPDES
View
FORMER OPERATOR
THOMAS C. BURGER
8707482001
NPDES


OPERATOR
CHARLES HALL
8707482001
NPDES
View
FORMER OPERATOR
CHARLES HALL
8707482001
NPDES
View

Query executed on: OCT-15-2025