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364
Mountain Pass Mine
67750 Bailey Road
Mountain Pass, CA 92366
Phone: 760-856-7664
Fax: N/A
2349 - MP Mine Operations LLC
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)
Zone 2 - Outer regions of I-15 Corridor, round trip 4 hours, intrazone 1 hour
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Permit Number Permit Description Equipment Description Issue Date Expiration Date Action
C004036 BAGHOUSE - Pb CINDER/FLY ASH STABILIZATION a MikroPulsaire, model 205-10-30, which serves t... 04/01/1999 02/29/2000 Download Permit
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B004088 CERIUM 90 LEACH CIRCUIT Feed Slurry Tank, with agitator @ 0.3 hp 3 Leac... 04/09/2001 02/28/2002 Download Permit
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B004090 No. 2 SODA ASH FEED PROCESS Soda Ash Storage Bin, 10,000 gal Total hp = 10.... 02/15/2011 02/29/2012 Download Permit
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B004093 WASTEWATER TREATMENT SYSTEM N/A 04/09/2001 02/28/2002 Download Permit
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B004100 LEACH RESIDUE (CERIUM-96 PLANT) CIRCUIT N/A 03/04/2024 02/28/2025 Download Permit
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C004930 SCRUBBER, RESIDUE FILTER (WATER) a Paramount Fabricators caustic scrubber, 36" di... 03/04/2024 02/28/2025 Download Permit
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B004325 AQUA AMMONIA (15%) SYSTEM a Storage Tank for 15% Aqua Ammonia, 30 ft diame... 04/09/2001 02/28/2002 Download Permit
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C004326 SCRUBBER - AQUA AMMONIA a unit with 6 in diameter by 30 ft high and 1 ft... 04/09/2001 02/28/2002 Download Permit
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B004333 YTTRIUM PRECIPITATION - SPECIALTY PLANT N/A 02/15/2011 02/29/2012 Download Permit
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B004489 STABILIZED LEAD/IRON REINTRODUCTION PROCESS N/A 02/15/2011 02/29/2012 Download Permit
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C004490 BAGHOUSE - STABILIZED Pb/Fe REINTRODUCTION PROCE... a cartridge type unit by Fabric Filters Northwes... 02/15/2011 02/29/2012 Download Permit
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B004664 RIBBON BLENDER DRYER a skid mounted unit, 4 ft diameter by 15 ft long... 03/04/2024 02/28/2025 Download Permit
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B004923 SPECIALTY PLANT No. 1 NEODYMIUM DRYER N/A 03/04/2024 02/28/2025 Download Permit
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B004924 SPECIALTY PLANT No. 2 NEODYMIUM DRYER N/A 03/04/2024 02/28/2025 Download Permit
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B004933 LEACH CIRCUIT - FLOATATION PLANT N/A 02/15/2011 02/29/2012 Download Permit
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C005098 SCRUBBER No. 1- LEACH CIRCUIT (FLOATATION PLANT)... a unit manufactured by DEI Systems, Inc., model ... 02/15/2011 02/29/2012 Download Permit
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T000374 CEMENT SILO a unit 10 ft in diameter by 20 ft high. This un... 02/15/2011 02/29/2012 Download Permit
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T000824 No. 2 CRUSHED ORE STORAGE BIN a Belt Conveyor, with 50 hp drive motor; Ore St... 02/15/2011 02/29/2012 Download Permit
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T000834 STORAGE TANKS - HYDROCHLORIC ACID TSR-76, which is No. 1 HCl storage tank; and TS... 03/04/2024 02/28/2025 Download Permit
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T002826 STORAGE TANK - SODA ASH Storage Tank, 152,100 lb of Soda Ash, which is e... 02/15/2011 02/29/2012 Download Permit
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T002830 STORAGE TANK- FEED TO ROD MILL No 1 FP-1 Ore Bin, which is 26 ft in diameter and 32... 02/15/2011 02/29/2012 Download Permit
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T004092 TANK FARM - FEED STORAGE 4 Storage Tanks, each at 20,000 gal; and 2 Fee... 03/04/2024 02/28/2025 Download Permit
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T004095 CONCENTRATE STORAGE BIN a bin known as No. 1 EAST, 204, which is located... 03/12/2013 02/28/2014 Download Permit
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T004096 CONCENTRATE STORAGE BIN a unit known as No. 2 WEST, 204 and has the dime... 03/12/2013 02/28/2014 Download Permit
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T004548 PORTABLE SILO a 1200 cu ft vertical, dry material unit by Belg... 08/08/2017 02/28/2018 Download Permit
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