FRS Facility Detail Report


MPC - MISSOULA DIVISION

EPA Registry Id: 110004004229
1903 SOUTH RUSSELL STREET
MISSOULA, MT 59801-6603


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 COMPLIANCE DATABASE
MT POWER COMPANY (MISSOULA) I08#198804121980 1 COMPLIANCE ACTIVITY NCDB

MONTANA - CONSOLIDATED ENVIRONMENTAL DATA ACQUISITION AND RETRIEVAL SYSTEM
NORTHWESTERN CORP MISSOULA DIV 153142 STATE MASTER MT-CEDARS
FITS-169169
HAZARDOUS WASTE PROGRAM
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
MISSOULA SERVICE CENTER MTD981545072 VSQG (Y) RCRAINFO

AIR FACILITY SYSTEM
MPC - MISSOULA DIVISION 3006300910 AIR MINOR (OPERATING) AIRS/AFS 06/08/2005
INTEGRATED COMPLIANCE INFORMATION SYSTEM MONTANA POWER CO - MISSOULA DIVISION 51741 ENFORCEMENT/COMPLIANCE ACTIVITY ICIS 06/24/2002
ICIS-AIR (AIR)
MPC - MISSOULA DIVISION 080000003006300910 AIR MINOR ICIS 10/19/2014

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
4930



ICIS
4931
ELECTRIC AND OTHER SERVICES COMBINED

ICIS
4941
WATER SUPPLY

Facility Codes and Flags

EPA Region: 08
Duns Number:
Congressional District Number: 01
Legislative District Number:
HUC Code/Watershed: 17010204 / MIDDLE CLARK FORK
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
NORTHWESTERN CORP MISSOULA DIV MT-CEDARS
MONTANA POWER COMPANY MANUAL ENTRY
MT POWER COMPANY (MISSOULA) NCDB
MONTANA POWER CO - MISSOULA DIVISION ICIS
THE MONTANA POWER LLC MISSOULA DIV RCRAINFO

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
REGULATORY CONTACT
NORTHWESTERN CORP MISSOULA DIV
MT-CEDARS
View
REGULATORY CONTACT
NORTHWESTERN CORP MISSOULA DIV
MT-CEDARS


OWNER
NORTHWESTERN ENERGY LLC
RCRAINFO
View
OPERATOR
NORTHWESTERN ENERGY LLC
RCRAINFO
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
MT-CEDARS 221110

RCRAINFO 22111 ELECTRIC POWER GENERATION
RCRAINFO 221122 ELECTRIC POWER DISTRIBUTION.
AIRS/AFS 221122 ELECTRIC POWER DISTRIBUTION.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
REGULATORY CONTACT 5005 WYNNE AVE BUTTE MT 59701 RCRAINFO
FACILITY MAILING ADDRESS 1903 RUSSELL MISSOULA MT AIRS/AFS
OPERATOR 40 E. BROADWAY BUTTE MT 59701 RCRAINFO
FACILITY MAILING ADDRESS 11 E. PARK ST. BUTTE MT 59701 RCRAINFO
OWNER 1903 RUSSELL ST MISSOULA MT 59801 RCRAINFO
MAILING ADDRESS 40 E BROADWAY BUTTE MT 59701 MT-CEDARS
REGULATORY CONTACT 40 E BROADWAY BUTTE MT 59701 MT-CEDARS

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
COMPLIANCE CONTACT
MARK HALGRIMSON
4065425907
AIRS/AFS


UNKNOWN CONTACT
MARK HALGRIMSON
4065425907
AIRS/AFS


REGULATORY CONTACT
GARRETT SMITH
406-542-5994
RCRAINFO
View

Query executed on: OCT-14-2025