FRS Facility Detail Report


MOLYCORPMOLYCORP MOUNTAIN PASS MINE

EPA Registry Id: 110000479376
67750 BAILEY ROAD
MOUNTAIN PASS, CA 92366


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:
AIR FACILITY SYSTEM
CHEVRON MINING INC 06071M0522 AIR MAJOR (OPERATING) AIRS/AFS 03/21/2014
TOXIC SUBSTANCES CONTROL ACT
MP MINE OPERATIONS LLC (DBA MP MATERIALS) TSCA10054335 TSCA SUBMITTER API 11/20/2024
CALIFORNIA - ENVIROVIEW
MOLYCORP MINERALSNA LLC 135992 STATE MASTER CA-ENVIROVIEW
CERS-10042186
RMP REPORTER
CERS-10042186
SPCC
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
MP MINE OPERATIONS LLC 343384632 OSHA ESTABLISHMENT OSHA-OIS 09/12/2018
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
MOLYCORP MINERALS LLC 340590603 OSHA ESTABLISHMENT OSHA-OIS 09/12/2018
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
MP MINING OPERATIONS LLC CAD009539321 LQG (Y) RCRAINFO
ICIS-09-2014-5001
FORMAL ENFORCEMENT ACTION
ICIS-AIR (AIR)
CHEVRON MINING INC CAMDA00006071M0522 AIR SYNTHETIC MINOR ICIS 10/19/2014
CALIFORNIA - ENVIROVIEW
MOLYCORP 191399 STATE MASTER CA-ENVIROVIEW
GEOTRACKER-SL206103827
SUPERFUND
GEOTRACKER-T0607100861
LEAKING STORAGE TANK
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
MOLYCORP MINERALS LLC 315984187 OSHA ESTABLISHMENT OSHA-OIS 01/21/2014
INTEGRATED COMPLIANCE INFORMATION SYSTEM MP MINE OPERATIONS 3601329245 ENFORCEMENT/COMPLIANCE ACTIVITY ICIS 08/25/2021
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
MOLYCORP MINERALS LLC 315983643 OSHA ESTABLISHMENT OSHA-OIS 11/13/2013
INTEGRATED COMPLIANCE INFORMATION SYSTEM MOLYCORP, INC. 3400022519 ENFORCEMENT/COMPLIANCE ACTIVITY ICIS 07/19/2016
INTEGRATED COMPLIANCE INFORMATION SYSTEM MP MINE OPERATIONS 3601329245 FORMAL ENFORCEMENT ACTION ICIS 08/25/2021
BIENNIAL REPORTERS
MP MINING OPERATIONS LLC CAD009539321 HAZARDOUS WASTE BIENNIAL REPORTER RCRAINFO 12/31/2021
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION INFORMATION SYSTEM
MOLYCORP MINERALS LLC 311675151 OSHA ESTABLISHMENT OSHA-OIS 02/02/2018
EMISSION INVENTORY SYSTEM (EIS)
MOUNTAIN PASS MINE 4841611 HAZARDOUS AIR POLLUTANT MAJOR EIS 04/01/2025
HAZARDOUS WASTE TRACKING SYSTEM - DATAMART
MOLYCORP INC/MOUNTAIN PASS OPERATIONS CAD009539321 STATE MASTER HWTS-DATAMART
-
HAZARDOUS WASTE PROGRAM
SAFE DRINKING WATER INFORMATION SYSTEM
MP MINE OPERATIONS LLC CA3600172 COMMUNITY WATER SYSTEM SFDW

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MP MATERIALS CAZ497424 STORM WATER INDUSTRIAL ICIS 02/20/2019
NATIONAL COMPLIANCE DATABASE
MOLYCORP, INC I09#19880518CA001 1 COMPLIANCE ACTIVITY NCDB

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MP MATERIALS CAZ497424 ICIS-NPDES NON-MAJOR ICIS 02/20/2019
ELECTRONIC GREENHOUSE GAS REPORTING TOOL (E-GGRT)
MP MINE OPERATIONS LLC 1010550 GREENHOUSE GAS REPORTER E-GGRT 03/30/2019
CALIFORNIA - ENVIROVIEW
MOLYCORP MINERALS LLC MOUNTAIN PASS MINE 49839 STATE MASTER CA-ENVIROVIEW
TRI-92366MLYCRI15AN
TRI REPORTER
TOXICS RELEASE INVENTORY SYSTEM
MP MINE OPERATIONS, LLC 92366MLYCRI15AN TRI REPORTER TRIS 06/28/2024

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
OSHA-OIS
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

AIRS/AFS
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

NCDB
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

NPDES
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

CA-ENVIROVIEW
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

OSHA-OIS
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

AIR
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

OSHA-OIS
1099
MISCELLANEOUS METAL ORES, NOT ELSEWHERE CLASSIFIED

Facility Codes and Flags

EPA Region: 09
Duns Number:
Congressional District Number: 08
Legislative District Number:
HUC Code/Watershed: 16060015 / IVANPAH-PAHRUMP VALLEYS
US Mexico Border Indicator: NO
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
MOLYCORP INC/MOUNTAIN PASS OPERATIONS HWTS-DATAMART
CHEVRON MINING INC AIR
MOLYCORP INC MOUNTAIN PASS MINE FRS
MOLYCORP MINERALS LLC MOUNTAIN PASS MINE CA-ENVIROVIEW
MOLYCORP MINERALS, LLC RCRAINFO
MOLYCORP INC EIS
MOLYCORP MINERALSNA LLC CA-ENVIROVIEW
MOLY CORP INC SDWIS

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OPERATOR
MP MINING OPERATIONS LLC
RCRAINFO
View
PARENT OWNER
MP MINE OPERATIONS LLC
E-GGRT


PARENT OWNER
MOLYCORP MINERALS LLC
E-GGRT


OWNER
MP MINE OPERATIONS LLC
RCRAINFO
View
PARENT COMPANY
MP MINE OPERATIONS LLC
EIS


OWNER
MOLYCORPNA INC
CA-ENVIROVIEW
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
EIS 212290

AIRS/AFS 212299 ALL OTHER METAL ORE MINING.
OSHA-OIS 212299 ALL OTHER METAL ORE MINING.
RCRAINFO 21239 OTHER NONMETALLIC MINERAL MINING AND QUARRYING
AIR 212299 ALL OTHER METAL ORE MINING.
OSHA-OIS 212299 ALL OTHER METAL ORE MINING.
OSHA-OIS 212299 ALL OTHER METAL ORE MINING.
OSHA-OIS 212299 ALL OTHER METAL ORE MINING.
CA-ENVIROVIEW 212299 ALL OTHER METAL ORE MINING.
TRIS 212290

CA-ENVIROVIEW 212299 ALL OTHER METAL ORE MINING.
OSHA-OIS 212399 ALL OTHER NONMETALLIC MINERAL MINING.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS 67750 BAILEY RD MOUNTAIN PASS CA 92366 AIRS/AFS
PUBLIC CONTACT HC-1 BOX 224 MOUNTAIN PASS 92366 CA-ENVIROVIEW
FACILITY MAILING ADDRESS 67750 BAILEY RDNA HC-1 BOX 224 MOUNTAIN PASS CA 92366 CA-ENVIROVIEW
OWNER HC-1 BOX 224 MOUNTAIN PASS 92366 RCRAINFO
FACILITY MAILING ADDRESS 67750 BAILEY RD MOUNTAIN PASS CA 92366 RCRAINFO
OWNER 5619 DTC PARKWAYNA STE 1000 DENVER 80111 CA-ENVIROVIEW
COMPANY OFFICIAL HC-1 BOX 224 MOUNTAIN PASS 92366 CA-ENVIROVIEW
ADMINISTRATIVE CONTACT 67750 BAILEY ROAD MOUNTAIN PASS CA 92364 SFDW
OPERATOR 67750 BAILEY RD MOUNTAIN PASS CA 92366 RCRAINFO
PROPERTY OWNER 5619 DTC PARKWAYNA STE 1000 DENVER 80111 CA-ENVIROVIEW
REGULATORY CONTACT 67750 BAILEY RD MOUNTAIN PASS CA 92366 RCRAINFO
FACILITY MAILING ADDRESS 67750 BAILEY RD MOUNTAIN PASS CA 92366 AIR
ENVIRONMENTAL CONTACT HC-1 BOX 224 MOUNTAIN PASS 92366 CA-ENVIROVIEW
REGIONAL BOARD CASEWORKER 14440 CIVIC DRIVENA SUITE 200 VICTORVILLE CA-ENVIROVIEW
MAILING ADDRESS HC-1 BOX 224 MOUNTAIN PASS CA 92366 TRIS
LOCAL AGENCY CASEWORKER 620 SOUTH E STREET SAN BERNARDINO 92415-0153 CA-ENVIROVIEW

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
REGIONAL BOARD CASEWORKER
CHRISTY HUNTER - LAHONTAN RWQCB (REGION 6V)


CA-ENVIROVIEW
View
PUBLIC CONTACT
JOHN F. ESPINOZA
7024685030
TRIS


ENVIRONMENTAL CONTACT
JOHN ESPINOZA
(760) 856-6617
CA-ENVIROVIEW
View
REGIONAL BOARD CASEWORKER
JEHIEL CASS - LAHONTAN RWQCB (REGION 6V)
7602412434
CA-ENVIROVIEW
View
PUBLIC CONTACT
ROCKY SMITH
7608566654
CA-ENVIROVIEW
View
OPERATOR
CHRIS BAKER
858-4242
NPDES


UNKNOWN CONTACT
GEOFF NASON
7608567664
AIRS/AFS


PROPERTY OWNER
MOLYCORPNA INC
(303) 843-8062
CA-ENVIROVIEW
View
UNKNOWN CONTACT
GEOFF NASON
7608567664
AIR


COMPANY OFFICIAL
JOHN ESPINOZA
(760) 856-6617
CA-ENVIROVIEW
View
OPERATOR
OTTO SCHWETHELM


NPDES


COMPLIANCE CONTACT
GEOFF NASON
7608567664
AIRS/AFS


COMPLIANCE CONTACT
GEOFF NASON
7608567664
AIR


LOCAL AGENCY CASEWORKER
JACKSON CRUTSINGER - SAN BERNARDINO COUNTY


CA-ENVIROVIEW
View

Query executed on: OCT-14-2025


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