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 - Showing76 to100 of319 Permits

Download Selected Permits

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 Print Permit
B004088	CERIUM 90 LEACH CIRCUIT	Feed Slurry Tank, with agitator @ 0.3 hp 3 Leac...	04/09/2001	02/28/2002	Download Permit Print Permit
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 Print Permit
B004093	WASTEWATER TREATMENT SYSTEM	N/A	04/09/2001	02/28/2002	Download Permit Print Permit
B004100	LEACH RESIDUE (CERIUM-96 PLANT) CIRCUIT	N/A	02/05/2025	02/28/2026	Download Permit Print Permit
C004930	SCRUBBER, RESIDUE FILTER (WATER)	a Paramount Fabricators caustic scrubber, 36" di...	02/05/2025	02/28/2026	Download Permit Print Permit
B004325	AQUA AMMONIA (15%) SYSTEM	a Storage Tank for 15% Aqua Ammonia, 30 ft diame...	04/09/2001	02/28/2002	Download Permit Print Permit
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 Print Permit
B004333	YTTRIUM PRECIPITATION - SPECIALTY PLANT	N/A	02/15/2011	02/29/2012	Download Permit Print Permit
B004489	STABILIZED LEAD/IRON REINTRODUCTION PROCESS	N/A	02/15/2011	02/29/2012	Download Permit Print Permit
C004490	BAGHOUSE - STABILIZED Pb/Fe REINTRODUCTION PROCE...	a cartridge type unit by Fabric Filters Northwes...	02/15/2011	02/29/2012	Download Permit Print Permit
B004664	RIBBON BLENDER DRYER	a skid mounted unit, 4 ft diameter by 15 ft long...	02/05/2025	02/28/2026	Download Permit Print Permit
B004923	SPECIALTY PLANT No. 1 NEODYMIUM DRYER	N/A	02/05/2025	02/28/2026	Download Permit Print Permit
B004924	SPECIALTY PLANT No. 2 NEODYMIUM DRYER	N/A	02/05/2025	02/28/2026	Download Permit Print Permit
B004933	LEACH CIRCUIT - FLOATATION PLANT	N/A	02/15/2011	02/29/2012	Download Permit Print Permit
C005098	SCRUBBER No. 1- LEACH CIRCUIT (FLOATATION PLANT)...	a unit manufactured by DEI Systems, Inc., model ...	02/15/2011	02/29/2012	Download Permit Print Permit
T000374	CEMENT SILO	a unit 10 ft in diameter by 20 ft high. This un...	02/15/2011	02/29/2012	Download Permit Print Permit
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 Print Permit
T000834	STORAGE TANKS - HYDROCHLORIC ACID	TSR-76, which is No. 1 HCl storage tank; and TS...	02/05/2025	02/28/2026	Download Permit Print Permit
T002826	STORAGE TANK - SODA ASH	Storage Tank, 152,100 lb of Soda Ash, which is e...	02/15/2011	02/29/2012	Download Permit Print Permit
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 Print Permit
T004092	TANK FARM - FEED STORAGE	4 Storage Tanks, each at 20,000 gal; and 2 Fee...	02/05/2025	02/28/2026	Download Permit Print Permit
T004095	CONCENTRATE STORAGE BIN	a bin known as No. 1 EAST, 204, which is located...	03/12/2013	02/28/2014	Download Permit Print Permit
T004096	CONCENTRATE STORAGE BIN	a unit known as No. 2 WEST, 204 and has the dime...	03/12/2013	02/28/2014	Download Permit Print Permit
T004548	PORTABLE SILO	a 1200 cu ft vertical, dry material unit by Belg...	08/08/2017	02/28/2018	Download Permit Print Permit