Mojave Desert Air Quality Management District Permit Search Site

Facility Info

Facility ID 364

Facility Name Mountain Pass Mine

Physical Address 67750 Bailey Road
Mountain Pass,CA92366

Contact Info Phone:760-856-7664
Fax:N/A

Company 2349 -MP Mine Operations LLC

Facility Note 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)

Address Region N/A
Latitude 35.47599
Longitude -115.52827

Near a School (within 1000ft) No
Number of Employees 320
Size (in acres) 0

Number of Hours in a Day this Facility is in Operation 24
Number of Days in a Week this Facility is in Operation 5
Number of Weeks in a Year this Facility is in Operation 48

Principal Product N/A
NAICS 212390
SIC Code 1099
UTM 634E/3926N
Level 2 Inspection No
Expiration Month 02

Zone ID Zone 2 - Outer regions of I-15 Corridor, round trip 4 hours, intrazone 1 hour

Auto Schedule Yes
Paper Work Time 36
Inspection Time 36
Inspection Status O
Active Active

AB2588 Industry Wide Facility No
Facility is in the FONA No
NSR Major For NOx, PM10
Title V Facility No
Title V Major For N/A
Title V Synthetic Minor No
Creation Date 12/31/1969
Last Modified 08/23/2024

Facility Permits - Showing51 to75 of319 Permits

Download Selected Permits

Permit Number	Permit Description	Equipment Description	Issue Date	Expiration Date	Action
T001942	BASTNASITE LEACH TANK SYSTEM	N/A	04/01/1999	02/29/2000	Download Permit Print Permit
T001943	SOLVENT STORAGE - SPECIALTY PLANT	a steel tank, TS-75, which is used for kerosene....	02/05/2025	02/28/2026	Download Permit Print Permit
T001948	KEROSENE STORAGE - SEPARATIONS PLANT STORAGE	a mild steel tank, whose capacity is 13,700 gall...	02/05/2025	02/28/2026	Download Permit Print Permit
C000324	SCRUBBER - HCL	Custom made, 24 in. diameter by 120 in. high, pa...	02/05/2025	02/28/2026	Download Permit Print Permit
T000835	STORAGE TANK, HCL FOR MILL (46-3308)	a 20,000 gallon capacity tank.	08/08/2017	02/28/2018	Download Permit Print Permit
C000325	SCRUBBER - HCL	a Custom made, 12 in diameter by 72 in high and ...	08/08/2017	02/28/2018	Download Permit Print Permit
C004615	BIN VENT - CEMENT SILO	a mikro-Pulsaire, model 165-10-30B with the foll...	02/15/2011	02/29/2012	Download Permit Print Permit
B003259	DRYER - CHEMICAL PLANT RIBBON BLENDER	a electrical dryer, which is 4 ft in diameter by...	02/13/2012	02/28/2013	Download Permit Print Permit
B003265	FLAKE LANTHANUM PROCESS	N/A	02/13/2012	02/28/2013	Download Permit Print Permit
C003266	SCRUBBER - LANTHANUM FLAKE PROCESS	a Duall, model F303 rated at 2000 CFM, which is ...	02/13/2012	02/28/2013	Download Permit Print Permit
B004027	FURNACE #3: YTTRIUM/EUROPIUM CO-PRECIP	a Mine and Smelter Company unit with Nichrome he...	02/15/2011	02/29/2012	Download Permit Print Permit
B004921	CERIUM REDOX CIRCUIT	Oxidation with sodium hypochlorite solution, pH...	02/05/2025	02/28/2026	Download Permit Print Permit
T004939	HOPPER	a 125 cu ft hopper used to repackage Bastnasite ...	02/15/2011	02/29/2012	Download Permit Print Permit
C004343	BAGHOUSE (No. 1 CONCENTRATE DRYER PACKAGING)	a Fabric Filter Air Systems Model 49-10 baghouse...	03/12/2013	02/28/2014	Download Permit Print Permit
T003117	TANK - WASTE OIL	Supervault 2000 gal, double wall	02/05/2025	02/28/2026	Download Permit Print Permit
N004629	GASOLINE DISPENSING FACILITY (NON-RETAIL)	N/A	02/05/2025	02/28/2026	Download Permit Print Permit
B004371	PURIFICATION PROCESS - EUROPIUM	N/A	02/05/2025	02/28/2026	Download Permit Print Permit
C004710	BIN VENT - PURIFICATION PROCESS	a Mikropuhl_Pulsaire, model 815-10-20TR"C" with ...	02/05/2025	02/28/2026	Download Permit Print Permit
C004711	CAUSTIC SCRUBBER- PURIFICATION PROCESS	one by Duall, Division of Met Pro Corporation, m...	02/05/2025	02/28/2026	Download Permit Print Permit
B004028	PACKAGING - YTTRIUM PROCESS	80 cu ft Blender, 30 hp No. 2 Product Screw, 3 ...	02/15/2011	02/29/2012	Download Permit Print Permit
B004030	PACKAGING - YTTRIUM, CO-PRECIPITATION	80 cu ft Blender @ 20 hp No. 2 Product Screw @ ...	02/15/2011	02/29/2012	Download Permit Print Permit
B004087	NEO CARB/NEO CARB FLUORIDE CIRCUIT	N/A	02/13/2012	02/28/2013	Download Permit Print Permit
B004033	CERIUM SLURRY MAKE-UP PROCESS	Cerium Slurry Make-up Hopper Cerium Slurry Make...	02/15/2011	02/29/2012	Download Permit Print Permit
B004035	LEAD CINDER/FLY ASH STABILIZATION PROCESS	N/A	04/01/1999	02/29/2000	Download Permit Print Permit
C004034	BAGHOUSE - CERIUM SLURRY MAKE-UP	a unit whose Air to Cloth ratio is 4.72 : 1: Fi...	02/15/2011	02/29/2012	Download Permit Print Permit