General Information
Party ID	Party Name	Party Classification	Mailing Address	Work Phone	Email/Website
629234	Aaron Case	null	67750 Bailey Road Hc1 Box 224 Mountain Pass, CA 92366	null	acase@mpmaterials.com	

Related Places
Place ID	Place Name	County	Region	Place Type	Relationship to Party	Relationship Start Date	Relationship End Date
220454	DOMESTIC WASTEWATER T&DFs	San Bernardino	6B	Wastewater Treatment Facility	None	null	null	

Related Parties
Party ID	Party Name	Party Type	Role/Relationship	Relationship Start Date	Relationship End Date	Classification
487446	MP Mine Operations LLC	Organization	Employee	08/01/2019	null	Privately-Owned Business	

Regulatory Measures(non-enforcement)
Reg. Measure ID	Regulatory Measure Type	Region	WDID	Title	Status	Program	Order No.	RM Effective Date	RM Termination Date	Relationship	Relationship Start Date	Relationship End Date
388260	Enrollee - WDR	6V	6B360011004	97-010-DWQ-15 Molycorp Minerals	Active	WDRMUNIENROTH	97-010-DWQ	11/07/2012	null	Discharger Contact	08/01/2019	null	

Violations within the past calendar year
Violation ID	Occurrence Date	Violation Type	Violation Description	Violation Status	Priority	Source	Facility Name	Violated Reg. Meas. ID	Violated Reg. Meas. Order No.	Linked To Enf.

Enforcement Actions
Enforcement ID	Enforcement Type	Enf. Order No.	Title	Program	Effective Date	Status

Regulatory Measures linked to Related Parties
Reg. Measure ID	Organization	Regulatory Measure Type	Program	Effective Date	Status
388260	MP Mine Operations LLC	Enrollee - WDR	WDRMUNIENROTH	11/07/2012	Active	
377626	MP Mine Operations LLC	WDR	LNDISPOTH	10/14/2010	Active	
132920	MP Mine Operations LLC	WDR	LNDISPOTH	10/14/2004	Active	
148001	MP Mine Operations LLC	WDR	LNDISPOTH	09/14/2000	Active	
454473	MP Mine Operations LLC	Enrollee - WDR	CERFILLEXC	03/18/2024	Active	
306717	MP Mine Operations LLC	WDR	LFNONOPER	06/14/2006	Active	
133369	MP Mine Operations LLC	WDR	LNDISPOTH	04/14/2005	Active	
376674	MP Mine Operations LLC	Enrollee - 401 Certification	CERFILLEXC	12/02/2010	Historical	
145895	MP Mine Operations LLC	WDR	LNDISP	06/13/1991	Historical	
148025	MP Mine Operations LLC	WDR	WDRMUNIOWTS	04/11/2001	Historical