FRS Facility Detail Report


DAVE GATES GENERATING STATION MILL CREEK

EPA Registry Id: 110043693964
241 UNIT A WILLOW GLEN RD
ANACONDA, MT 59711


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:
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
NORTHWESTERN ENERGY MILL CREEK GENERATING STATION MODIFICATION MTR103709 STORM WATER CONSTRUCTION ICIS 03/31/2010 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
ICIS-AIR (AIR)
DAVE GATES GENERATING STATION AT MILL CREEK MT0000003002300002 AIR MAJOR ICIS 05/18/2015
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
NORTHWESTERN ENERGY - MILL CREEK GENERATING STATION MTR103389 ICIS-NPDES NON-MAJOR ICIS 05/15/2009 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
TOXICS RELEASE INVENTORY SYSTEM
DAVE GATES GENERATING STATION 5971WDVGTS241UN TRI REPORTER TRIS 06/09/2016
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
NORTHWESTERN ENERGY - MILL CREEK GENERATING STATION MTR103389 STORM WATER CONSTRUCTION ICIS 05/15/2009 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
NORTHWESTERN ENERGY MILL CREEK GENERATING STATION MODIFICATION MTR103709 ICIS-NPDES NON-MAJOR ICIS 03/31/2010 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
EMISSIONS & GENERATION RESOURCE INTEGRATED DATABASE
DAVE GATES GENERATING STATION 56908 ELECTRIC POWER GENERATOR (GAS BASED) EGRID 02/24/2020
MONTANA - CONSOLIDATED ENVIRONMENTAL DATA ACQUISITION AND RETRIEVAL SYSTEM
DAVE GATES GENERATING STATION AT MILL CREEK 160294 STATE MASTER MT-CEDARS
FITS-159104
AIR PROGRAM
FITS-163304
AIR PROGRAM
AIR FACILITY SYSTEM
DAVE GATES GENERATING STATION AT MILL CR 3002300002 AIR MAJOR (OPERATING) AIRS/AFS 08/28/2014 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
ENERGY INFORMATION ADMINISTRATION-860 (EIA-860) DATABASE
DAVE GATES GENERATING STATION 56908 ELECTRIC GENERATOR EIA-860 10/06/2020
CLEAN AIR MARKETS DIVISION (CAMD) BUSINESS SYSTEMS
MILL CREEK GENERATING STATION 56908 AIR PROGRAM CAMDBS 07/23/2012

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
AIRS/AFS
4931
ELECTRIC AND OTHER SERVICES COMBINED

NPDES
1794
EXCAVATION WORK

NPDES
1623
WATER, SEWER, PIPELINE, AND COMMUNICATIONS AND POWER LINE CONSTRUCTION

AIR
4931
ELECTRIC AND OTHER SERVICES COMBINED

MT-CEDARS
4931
ELECTRIC AND OTHER SERVICES COMBINED

NPDES
1623
WATER, SEWER, PIPELINE, AND COMMUNICATIONS AND POWER LINE CONSTRUCTION

NPDES
1794
EXCAVATION WORK

NPDES
1541
GENERAL CONTRACTORS-INDUSTRIAL BUILDINGS AND WAREHOUSES

NPDES
1541
GENERAL CONTRACTORS-INDUSTRIAL BUILDINGS AND WAREHOUSES

Facility Codes and Flags

EPA Region: 08
Duns Number: 007920291
Congressional District Number: 01
Legislative District Number:
HUC Code/Watershed: 17010201 / UPPER CLARK FORK
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
NORTHWESTERN ENERGY - MILL CREEK GENERATING STATION NPDES
NORTHWESTERN ENERGY MILL CREEK GENERATING STATION MODIFICATION NPDES
NORTHWESTERN ENERGY MILL CREEK STATION AIRS/AFS
DAVE GATES GENERATING STATION EGRID
DAVE GATES GENERATING STATION AT MILL CREEK MT-CEDARS
MILL CREEK GENERATING STATION CAMDBS
DAVE GATES GENERATING STATION AT MILL CR AIRS/AFS

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
PARENT COMPANY
NORTHWESTERN ENERGY DGGS
EIA-860
View
PARENT COMPANY
NORTHWESTERN ENERGY CORP 007920291
TRIS


OWNER/OPERATOR
NORTHWESTERN CORPORATION
EIA-860


PARENT COMPANY
NORTHWESTERN ENERGY LLC - (MT)
EGRID


OWNER/OPERATOR
NORTHWESTERN ENERGY LLC - (MT)
EIA-860


TRANSMISSION OR DISTRIBUTION SYSTEM OWNER
NORTHWESTERN ENERGY LLC - (MT)
EIA-860


OPERATOR
NAES CORPORATION
CAMDBS


PERMITEE
NORTHWESTERN ENERGY
AIR
View
PERMITEE
NORTHWESTERN ENERGY
NPDES
View
REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS
View
REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS
View
REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS
View
MAILING ADDRESS
NORTHWESTERN ENERGY
NPDES
View
OWNER
NORTHWESTERN ENERGY
CAMDBS


PERMITTEE
NORTHWESTERN ENERGY
AIR
View
PERMITEE
NORTHWESTERN ENERGY
NPDES
View
MAILING ADDRESS
NORTHWESTERN ENERGY
NPDES
View
REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS


REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS
View
REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS
View
REGULATORY CONTACT
NORTHWESTERN ENERGY
MT-CEDARS
View
PARENT COMPANY
NORTHWESTERN ENERGY DGGS
EIA-860
View
OPERATOR
NORTHWESTERN ENERGY DGGS
EGRID


National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
TRIS 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.
EIA-860 22

AIRS/AFS 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.
MT-CEDARS 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.
AIR 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.
CAMDBS 221112 FOSSIL FUEL ELECTRIC POWER GENERATION.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
REGULATORY CONTACT 125 SOUTH DAKOTA AVE STE 1100 SIOUX FALLS SD 57104 MT-CEDARS
PRIMARY FACILITY SITE CONTACT 40 EAST BROADWAY BUTTE MT 59701 CAMDBS
PRIMARY FACILITY SITE CONTACT 11 EAST PARK STREET BUTTE MT 597011711 CAMDBS
PERMITEE 40 E BROADWAY ST BUTTE MT 59701 AIR
FACILITY MAILING ADDRESS 40 EAST BROADWAY BUTTE MT 59701 AIRS/AFS
REGULATORY CONTACT PO BOX 80330 BILLINGS MT 59108 MT-CEDARS
PERMITEE 40 EAST BROADWAY STREET BUTTE MT 59701 NPDES
PERMITTEE 40 EAST BROADWAY STREET BUTTE MT 59701 NPDES
MAILING ADDRESS 40 EAST BROADWAY STREET BUTTE MT 59701 NPDES
MAILING ADDRESS PO BOX 1140 ANACONDA MT 59711 TRIS
REGULATORY CONTACT 40 EAST BROADWAY BUTTE MT 59701 MT-CEDARS
UNKNOWN CONTACT 40 EAST BROADWAY STREET BUTTE MT 59701 NPDES
REGULATORY CONTACT 40 E BROADWAY ST BUTTE MT 59701 MT-CEDARS
PERMITTEE 11 E. PARK ST. BUTTE MT 59701 AIR
MAILING ADDRESS P.O. BOX 1140 ANACONDA MT 59711 TRIS
UNKNOWN CONTACT 1944 MONAD RD BILLINGS MT 59102 CAMDBS
REGULATORY CONTACT 40 E BROADWAY BUTTE MT 59701 MT-CEDARS
REGULATORY CONTACT 4503 62ND AVE SW GREAT FALLS MT 59404 MT-CEDARS
PARENT COMPANY 40 E BROADWAY BUTTE MT 59701 EIA-860
PARENT COMPANY 40 E. BROADWAY BUTTE MT 59701 EIA-860

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
PRIMARY FACILITY SITE CONTACT
WILLIAM W THOMPSON
406-497-3912
CAMDBS
View
PERMITTEE
RICK WALSH
4064973917
NPDES
View
PRIMARY FACILITY SITE CONTACT
WILLIAM W THOMPSON
406-497-3912
CAMDBS
View
UNKNOWN CONTACT
MICHAEL BARNES
4066556426
CAMDBS
View
UNKNOWN CONTACT
ROSE SHEA
4064973399
NPDES
View
PUBLIC CONTACT
WILLIAM THOMPSON
4064973912
TRIS


Query executed on: OCT-14-2025


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