Facility Info
364
Mountain Pass Mine
10/17/07 Rec'd a change of owner applications for all the permits currently under Union Oil Molycorp. The change is going from Union Oil Molycorp to Chevron Mining, Inc. The company/facility numbers will be staying the same. (005/0364) Barbara Weese
08-08-2017 Moved Companies From Molycorp Minerals, LLC(5) to MP Mine Operations LLC(2349)
| Permit Number | Permit Description | Equipment Description | Issue Date | Expiration Date | Action | |
|---|---|---|---|---|---|---|
| C011180 | SELECTIVE CATALYTIC REDUCTION SYSTEM #4 | Selective catalytic reduction system, manufactur... | 02/23/2015 | 02/28/2016 |
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| E011115 | DIESEL IC ENGINE, EMERGENCY GENERATOR | Emergency engine #1 at CHP. Year of manufacture ... | 02/10/2026 | 02/28/2027 |
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| T011912 | CHLOR ALKALI PROCESS, HCL TRANSFER TANK #2 | N/A | 02/10/2026 | 02/28/2027 |
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| B012173 | LIGHT RARE EARTH CARBONATE PROCESS (LREC) | N/A | 02/10/2026 | 02/28/2027 |
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| C012158 | BIN VENT - SODA ASH SYSTEM STORAGE TANK #2 | Mikro-Pulsaire, model 20S-10-30 B style with the... | 02/10/2026 | 02/28/2027 |
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| E011484 | DIESEL IC ENGINE, EMERGENCY FIRE PUMP #2 | A certified Tier 3 Diesel engine, EPA Family CJD... | 02/10/2026 | 02/28/2027 |
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| B011542 | IRON URANIUM SEPARATIONS PROCESS | N/A | 02/10/2026 | 02/28/2027 |
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| T011533 | STORAGE TANK - AQUEOUS AMMONIA CHP PLANT | 7,900 gallon stainless steel tank storing 19% aq... | 02/10/2026 | 02/28/2027 |
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| T011532 | STORAGE TANK - AQUEOUS AMMONIA CHP PLANT | 7,900 gallon stainless steel tank storing 19% aq... | 02/10/2026 | 02/28/2027 |
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| B011551 | DIDYMIUM SEPARATION (SXD) CIRCUIT | N/A | 02/10/2026 | 02/28/2027 |
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| C011552 | ADSORBER #1 - HCL, SXD CIRCUIT | N/A | 02/10/2026 | 02/28/2027 |
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| C011553 | ADSORBER #2 - HCL, SXD CIRCUIT | N/A | 02/10/2026 | 02/28/2027 |
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| C011554 | ADSORBER #1 - SX-12, SXD CIRCUIT | N/A | 02/10/2026 | 02/28/2027 |
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| C011555 | ADSORBER #2 - SX-12, SXD CIRCUIT | N/A | 02/10/2026 | 02/28/2027 |
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| T011873 | BRINE RECOVERY EQUIPMENT | N/A | 02/10/2026 | 02/28/2027 |
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| C011917 | CHLOR ALKALI PROCESS, VENT SCRUBBER #2 | N/A | 02/10/2026 | 02/28/2027 |
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| C011914 | CHLOR ALKALI PROCESS, SECOND STAGE BLEACH TOWER | N/A | 02/10/2026 | 02/28/2027 |
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| B014219 | BRINE CRYSTALLIZER | N/A | 02/10/2026 | 02/28/2027 |
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| B014285 | CONCENTRATE THICKENER AND FILTRATION SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014254 | LEACH CAUSTIC SCRUBBER | Bionomic Industries Series 5000 Model 136 Packed... | 02/10/2026 | 02/28/2027 |
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| B014255 | LEACH THICKENING AND FILTRATION SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014302 | PRASEODYMIUM NEODYMIUM SCRUBBER | Bionomic Industries Series 5000 Model 46 Packed ... | 02/10/2026 | 02/28/2027 |
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| B014303 | PRASEODYMIUM NEODYMIUM THICKENER AND FILTRATION ... | N/A | 02/10/2026 | 02/28/2027 |
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| B014304 | PRASEODYMIUM NEODYMIUM DRYER | Dryer with burner rated at 7.2 MMBtu/hr. Ductin... | 02/10/2026 | 02/28/2027 |
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| B014305 | PRASEODYMIUM NEODYMIUM DRYING CONVEYANCE SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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