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California Integrated Water Quality System Project (CIWQS)
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Place ID 246044 		  
  
  
  
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General Information
Region Place ID Place Name Place Type Place Address Place County
6B 246044 Onsite Evaporation Ponds Surface Impoundment 67750 Bailey Rd Mountain Pass, CA, 92366 San Bernardino
Expand/Contract Related Parties
Related Parties
Party Party Type Party Name Role Classification Relationship Start Date Relationship End Date
487446 Organization MP Mine Operations LLC Owner Privately-Owned Business 07/12/2017
605017 Person John F. Espinoza Contact 07/12/2017
563163 Person Shelby Barker Case Worker 07/01/2017
29096 Organization Molycorp Inc Owner Privately-Owned Business 07/10/1998 07/11/2017
Total Related Parties: 4
Expand/Contract Regulatory Measures
Regulatory Measures
Reg Measure ID Reg Measure Type Region Program Order No. WDID Effective Date Expiration Date Status Amended?
133369 WDR 6V LNDISPOTH R6V-2005-0011 6B369807003 04/14/2005 04/14/2027 Active N
147560 WDR 6V LNDISP 00-034 6B369807003 05/10/2000 05/10/2010 Historical N
Total Reg Measures: 2
Expand/Contract Violations
Violations
Violation ID Occurred Date Violation Type (-) Violation Description Corrective Action Status Classification Source
1105293 05/26/2022 UAUTHDISC Recovery well water is collected and stored in a tank near P-16. The tank has an effluent line that runs to the 204 and then out to the evaporation ponds. A valve in the effluent line was inadvertently closed causing a release of 50-100 gallons of recovery water. Discharger reported it within 24 hours. Spill was contained to bermed soil in immediate vicinity. On May 28, 2022, discharger removed 140 cubic yards of soil was excavated and disposed of in the northwest tailings disposal facility. Violation B Complaint
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 1 Priority Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
Violation Types
UAUTHDISC = Unauthorized Discharge
Expand/Contract Enforcement Actions
Enforcement Actions
Enf Id Enf Type Enf Order No. Effective Date Status
449817 Oral Communication 05/27/2022 Historical
428307 Oral Communication 01/02/2019 Historical
428304 Oral Communication 01/02/2019 Historical
423516 Oral Communication 08/14/2018 Historical
419741 Oral Communication 02/21/2018 Historical
409778 Staff Enforcement Letter null 10/17/2016 Historical
402179 Oral Communication null 07/21/2015 Historical
400262 Oral Communication 03/02/2015 Historical
399730 Oral Communication 01/20/2015 Historical
399720 Oral Communication 01/15/2015 Historical
399719 Oral Communication 01/12/2015 Historical
399517 Oral Communication 12/19/2014 Historical
399518 Oral Communication 12/18/2014 Historical
399515 Oral Communication 12/15/2014 Historical
398937 Notice of Violation null 11/20/2014 Active
399516 Oral Communication 10/29/2014 Historical
397929 Oral Communication null 08/07/2014 Historical
397928 Oral Communication 07/23/2014 Historical
397167 Oral Communication 06/24/2014 Historical
396142 Oral Communication 04/23/2014 Historical
395386 Oral Communication 02/28/2014 Historical
394880 Oral Communication 01/15/2014 Historical
394469 Oral Communication 01/03/2014 Historical
394385 Notice of Violation null 12/24/2013 Historical
394379 Notice of Violation 12/20/2013 Active
394347 Oral Communication 12/16/2013 Historical
394461 Oral Communication 12/16/2013 Historical
394136 Oral Communication 12/05/2013 Historical
394464 Oral Communication 10/08/2013 Historical
396974 Oral Communication 09/23/2013 Historical
394463 Oral Communication 07/31/2013 Historical
391807 Oral Communication null 06/17/2013 Historical
390176 Oral Communication null 01/16/2013 Historical
388244 Oral Communication 11/27/2012 Historical
387419 Notice of Violation null 09/14/2012 Historical
387328 Oral Communication null 08/09/2012 Historical
389535 Oral Communication 06/01/2012 Historical
389048 Oral Communication 06/01/2012 Historical
384026 Oral Communication 03/29/2012 Historical
384029 Oral Communication 02/10/2012 Historical
382505 Oral Communication 12/15/2011 Historical
382499 Oral Communication 12/08/2011 Historical
382364 Oral Communication 11/28/2011 Historical
382362 Oral Communication 11/01/2011 Historical
382062 Notice of Violation 10/27/2011 Historical
381973 Oral Communication 10/24/2011 Historical
381972 Oral Communication 10/10/2011 Historical
381415 Notice of Violation 09/15/2011 Historical
381356 Notice of Violation 09/07/2011 Historical
380130 Notice of Violation 06/27/2011 Historical
377252 Oral Communication R6V-2005-0011 01/04/2011 Historical
377137 Oral Communication R6V-2005-0011 12/15/2010 Historical
377156 Oral Communication R6V-2005-0011 11/22/2010 Historical
377153 Oral Communication R6V-2005-0011 11/22/2010 Historical
377152 Oral Communication R6V-2005-0011 10/19/2010 Historical
374884 Oral Communication R6V-2005-0011 06/24/2010 Historical
378461 Notice of Violation null 02/09/2010 Historical
373075 Notice of Violation R6V-2005-0011 02/09/2010 Historical
371968 Notice of Violation R6V-2005-0011 11/03/2009 Historical
366142 Notice of Violation R6V-2005-0011 04/21/2009 Historical
361178 Notice of Violation R6V-2005-0011 01/16/2009 Historical
352252 Notice of Violation 05/15/2007 Historical
Total Enf Actions: 62
Expand/Contract Inspections
Inspections
Inspection ID Inspection Type Lead Inspector Actual End Date Planned Violations Attachment
54103206 B Type compliance inspection Andrew Robinson 11/16/2023 N 0 N/A
51311570 B Type compliance inspection Christina Guerra 04/17/2023 N 0 Download
45232955 B Type compliance inspection Shelby Barker 08/31/2021 N 0 Download
37526883 B Type compliance inspection Shelby Barker 09/03/2019 N 0 N/A
36597414 B Type compliance inspection Shelby Barker 05/29/2019 N 0 N/A
34637209 B Type compliance inspection Shelby Barker 11/28/2018 N 0 N/A
31919594 B Type compliance inspection Shelby Barker 02/21/2018 N 0 Download
26702603 B Type compliance inspection Christy Hunter 12/07/2016 N 0 [Attachments]
21305406 B Type compliance inspection Christy Hunter 07/28/2015 N 0 Download
18210918 B Type compliance inspection Christy Hunter 10/28/2014 N 1 Download
11377924 B Type compliance inspection Christy Hunter 02/07/2013 N 0 Download
10068811 B Type compliance inspection Christy Hunter 10/23/2012 N 0 Download
6767832 Field Oversight Christy Hunter 10/21/2011 N 0 N/A
5788871 B Type compliance inspection Christy Hunter 09/27/2011 N 0 Download
3331239 B Type compliance inspection Christy Hunter 12/16/2010 N 0 Download
1965748 B Type compliance inspection Christy Hunter 12/14/2009 N 0 N/A
1503121 B Type compliance inspection Christy Hunter 10/16/2008 N 0 Download
1273504 B Type compliance inspection Christy Hunter 10/04/2007 N 0 Download
793901 B Type compliance inspection Christy Hunter 09/26/2006 N 0 N/A
476163 B Type compliance inspection Jehiel Cass 10/24/2005 N 0 N/A
336700 A Type compliance inspection Christy Hunter 10/18/2004 Y 0 N/A
334042 B Type compliance inspection Christy Hunter 02/18/2004 Y 0 N/A
330343 A Type compliance inspection Curt Shifrer 05/29/2003 Y 0 N/A
311305 B Type compliance inspection Curt Shifrer 10/03/2001 Y 0 N/A
311304 B Type compliance inspection Mike Plaziak 04/05/2001 Y 0 N/A
Total Inspections: 25 Last Inspection: 11/16/2023
  
The current report was generated with data as of: 11/18/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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