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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
48117 US Borax Inc Privately-Owned Business 14486 Borax Road Boron, CA 93516 760-762-7222(+) richard.cohen@riotinto.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
857400 Lang Mine Los Angeles 4 Salt Mining Owner and Operator 04/02/2019 None
246358 Owens Lake Trona Processing Inyo 6B Salt Mining Owner 01/22/2003 None
226707 Gangue/Overburden/Ref Waste Kern 6B Salt Mining Owner 11/28/1994 None
210080 Boron Mine Facility Kern 6B Salt Mining Owner 06/24/1976 None
Total Related Places: 4
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
605985 Richard Cohen Person Legally Responsible Official 01/21/2020 None None
596367 Nathan Francis Person Legally Responsible Official 04/02/2019 01/21/2020 None
Total Related Parties: 2
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
429730 13267 Letter (Non-Enforcement) 4 None Historical LFNONOPER R4-2019-0012 03/29/2019 07/21/2020 Discharger 04/02/2019 None N
403003 WDR 6V 6B152004001 Active LNDISPOTH R6V-2015-0057 09/17/2015 None Discharger 09/17/2015 None Y
376452 WDR 6V 6B152004002 Active LNDISPOTH R6V-2010-0048 10/14/2010 None Discharger 04/13/1989 None N
306715 WDR 6V 6B152004001 Historical LNDISPOTH R6V-2006-0025 06/14/2006 09/17/2015 Discharger 04/11/2001 None Y
148008 WDR 6V 6B152004001 Historical LNDISP 01-019 04/11/2001 04/11/2006 Discharger 04/11/2001 None N
147899 WDR 6V 6B152004001 Historical LNDISP 80-025 03/13/1980 None Discharger 03/13/1980 None N
147882 WDR 6V 6B152004001 Historical LNDISP 78-075 12/07/1978 None Discharger 12/07/1978 None N
147859 WDR 6V 6B152004001 Historical LNDISP 76-070 06/24/1976 None Discharger 06/24/1976 None N
147194 WDR 6V 6B152004001 Historical LNDISP 84-014 01/12/1984 None Discharger 01/12/1984 None N
147168 WDR 6V 6B152004001 Historical LNDISP 90-037 05/10/1990 None Discharger 05/10/1990 None N
146444 WDR 6V 6B152004001 Historical LNDISP 89-078 04/13/1989 None Discharger 04/13/1989 None N
146443 WDR 6V 6B152004002 Historical LNDISP 89-059 04/13/1989 10/14/2010 Discharger 04/13/1989 None Y
146150 WDR 6V 6B152004001 Historical LNDISP 93-017 03/11/1993 04/10/2001 Discharger 03/11/1993 None Y
132919 WDR 6V 6B140202001 Active LNDISPOTH 04-035 09/09/2004 None Discharger 09/09/2004 None N
Total Regulatory Measures: 14
  
  
  
  
Expand/Contract Violations
Violations within the past five years
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.
1141543 01/26/2025 Order Conditions Board Order No. R6V-2015-0057, Section IV. B., Standard Provisions, The Discharger must comply with the ¿Standard Provisions for Waste Discharge Requirements,¿ dated September 1, 1994, in Attachment C¿¿ Standard Provisions, 2.a., Reporitng Requirements. ¿Pursuant to California Water Code 13267(b), the Discharger shall immediately notify the Regional Water Board by telephone whenever an adverse condition occurred as a result of this discharge; written confirmation shall follow within two weeks. An adverse condition includes, but is not limited to, spills of petroleum products or toxic chemicals, or damage to control facilities that could affect compliance Violation N Inspection Boron Mine Facility 403003 R6V-2015-0057 N
1141542 01/26/2025 Order Conditions MRP, Section II.A.4.a.ii states ¿Upon detection of leachate in a previously dry LCRS that was dry during the prior week inspection (defined herein as an event), the Discharger shall immediately collect a grab sample of the leachate for the constituents of concern identified in Attachment A. Quarterly thereafter samples of the leachate in the LCRS must be sampled and analyzed for the constituents described and at the same frequency as monitoring wells, as specified in Attachment A. Violation N Inspection Boron Mine Facility 403003 R6V-2015-0057 N
1141541 01/26/2025 Order Conditions 1. Board Order No. R6V-2015-0057, Section IV. B., Standard Provisions, The Discharger must comply with the ¿Standard Provisions for Waste Discharge Requirements,¿ dated September 1, 1994, in Attachment C¿¿ Standard Provisions, 2.a., Reporitng Requirements. ¿Pursuant to California Water Code 13267(b), the Discharger shall immediately notify the Regional Water Board by telephone whenever an adverse condition occurred as a result of this discharge; written confirmation shall follow within two weeks. An adverse condition includes, but is not limited to, spills of petroleum products or toxic chemicals, or damage to control facilities that could affect compliance. USB failed to notify the Water Board immediately upon detection of moisture in the LCRS, an adverse condition that occurred as a result of this discharge to BAP 8B on multiple occasions. Violation N Inspection Boron Mine Facility 403003 R6V-2015-0057 Y
1140139 04/09/2024 Groundwater Exceeded the CUSUM limit of Boron, Carbonate Alkalinity as CACO3, Chloroform, and Iron during the 1st half 2024 monitoring period. Violates Board Order R6V-2020-0031 MRP I.C.1. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140138 02/28/2024 Deficient Monitoring (1) Unsaturated zone soil moisture exceeded upper tolerance limits. Violates Board Order R6V-2015-0057 MRP II.A.5.b. (2) Soil moisture data for the VZ-05-05, VZ-05-10, VZ-05-15, VZ-05-20, VZ-05-25, VZ-05-30 were not included. Violates Board Order R6V-2015-0057 MRP II.A.5.b. (3) Soil moisture probes VZ-41-05, VZ-42-05, VZ-42-15, VZ-45-05 have no Upper Tolerance Limits listed in the monitoring report. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140137 06/30/2024 Order Conditions (1) Failure to maintain groundwater well 3M-71 during the 1st half 2024 monitoring period. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain Soil Moisture TDT Sensors VMS-08-1-20, VMS-08-2-30, VMS-26-1-20, VMS-26-2-30, VMS-34-1-20, VMS-34-2-30, VMS-35-1-20, VMS-35-2-30, VMS-36-1-20, VMS-36-2-30, VMS-27-1-20, and VMS-27-2-30 during the 2nd half 2023 monitoring period. Violates Board Order R6V-2015-0057 WDR II.A.14. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140136 03/06/2023 Deficient Monitoring Unsaturated zone soil moisture exceeded upper tolerance limits. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140135 03/27/2023 Groundwater Exceeded the CUSUM limit of Antimony, Carbonate Alkalinity as CACO3, Chloroform, Fluoride, and Iron during the 1st half 2023 monitoring period. Violates Board Order R6V-2020-0031 MRP I.C.1. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140134 06/30/2023 Order Conditions (1) Failure to maintain groundwater well 3M-71 during the 1st half 2023 monitoring period. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain Soil Moisture TDT Sensors VMS-08-1-20 and VMS-08-2-30 during the 1st half 2023 monitoring period. Violates Board Order R6V-2015-0057 WDR II.A.14. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140133 01/31/2023 Deficient Monitoring (1) List of all monitoring pairs that have exhibited a verified measurably significant increase was not included. Violates Board Order R6V-2015-0057 MRP IV.3.a. (2) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140132 09/20/2023 Deficient Monitoring (1) Unsaturated zone soil moisture exceeded upper tolerance limits. Violates Board Order R6V-2015-0057 MRP II.A.5.b. (2) Soil moisture data for the 2023 4th quarter was not collected. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140129 08/03/2023 Groundwater Exceeded the CUSUM limit of Arsenic and Chloroform during the 2nd half 2023 monitoring period. Violates Board Order R6V-2020-0031 MRP I.C.1. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1140128 12/31/2023 Order Conditions (1) Failure to maintain groundwater well 3M-71 during the 2nd half 2023 monitoring period. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain Soil Moisture TDT Sensors VMS-08-1-20 and VMS-08-2-30 during the 2nd half 2023 monitoring period. Violates Board Order R6V-2015-0057 WDR II.A.14. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 N
1115556 09/13/2022 Deficient Monitoring Unsaturated zone moisture exceeded upper tolerance limits. Field verification testing and Water Board notification has not been completed. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115555 07/31/2022 Order Conditions Surface impoundment action leakage rates exceeded. Violates Board Order R6V-2015-0057-A1 MRP II.A.4.b. Table 1 Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115554 12/31/2022 Deficient Monitoring (1) Wastewater sample was not analyzed for annual constituents of concern in Attachment A. Violates Board Order R6V-2015-0057 MRP II.A.1.a. (2) List of all monitoring pairs that have exhibited a verified measurably significant increase was not included. Violates Board Order R6V-2015-0057 MRP IV.3.a. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115553 12/31/2022 Deficient Monitoring (1) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d (2) The Operation and Maintenance summary did not discuss the calibration of any wastewater flow measuring devices. Violates Board Order R6V-2015-0057 MRP II.F.3. (3) Failure to comment on whether there are any physical evidence indications of a release. Violates Board Order R6V-2015-0057 MRP III.B.1. (4) Failure to provide laboratory analytical results/reports for all laboratory analyses. Violates Board Order R6V-2015-0057 WDR III.F.2. MRP II. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115552 08/04/2022 Groundwater Exceeded the CUSUM limit of Antimony, Bicarbonate Alkalinity as CACO3, Boron, Calcium, Fluoride, Iron, Magnesium, Mercury, Sulfate, Total Dissolved Solids during the 2022 2nd Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115550 12/31/2022 Order Conditions (1) Failure to maintain well 3M-71 in good working order. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain the following surface impoundments in good working order BAP-3, BAP-6, R-Pond Compartment 1, and R-Pond Compartment 2. Violates Board Order R6V-2015-0057 WDR II.A.14. (3) Daily freeboard measurements were not included in the 2022 2nd half monitoring report. MRP II.A.3.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115548 03/15/2022 Deficient Monitoring Unsaturated zone moisture exceeded upper tolerance limits. Field verification testing and Water Board notification has not been completed. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115547 01/31/2022 Order Conditions Surface impoundment action leakage rates exceeded. Violates Board Order R6V-2015-0057-A1 MRP II.A.4.b. Table 1 Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115546 06/30/2022 Deficient Monitoring (1) Wastewater sample was not analyzed for annual constituents of concern in Attachment A. Violates Board Order R6V-2015-0057 MRP II.A.1.a. (2) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d (3) Storm water sample from FCC catchments was not analyzed for Nitrate. Violates Board Order R6V-2015-0057 MRP II.E. (4) The Operation and Maintenance summary did not discuss the calibration of any wastewater flow measuring devices. Violates Board Order R6V-2015-0057 MRP II.F.3. (5) Failure to comment on whether there are any physical evidence indications of a release. Violates Board Order R6V-2015-0057 MRP III.B.1. (6) Failure to provide laboratory analytical results/reports for all laboratory analyses. Violates Board Order R6V-2015-0057 WDR III.F.2. MRP II. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115545 04/12/2022 Groundwater (1) Exceeded the CUSUM limit of Fluoride during the 2022 1st Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. (2) Exceeds MDL of Chloroform, Benzene, and tert-Butyl alcohol during the 2022 1st Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115544 06/30/2022 Order Conditions (1) Failure to maintain the following groundwater monitoring or extraction wells in good working order 3M-17, EXT-02, GWM-43, GWM-60, and GWM-107. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain the following surface impoundments in good working order BAP-3, BAP-6, R-Pond Compartment 1, and R-Pond Compartment 2. Violates Board Order R6V-2015-0057 WDR II.A.14. (3) Daily freeboard measurements were not included in the 2022 1st half monitoring report. MRP II.A.3.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115541 09/21/2021 Deficient Monitoring Unsaturated zone moisture exceeded upper tolerance limits. Field verification testing and Water Board notification has not been completed. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115539 07/31/2021 Order Conditions Surface impoundment action leakage rates exceeded. Violates Board Order R6V-2015-0057-A1 MRP II.A.4.b. Table 1 Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115538 12/31/2021 Deficient Monitoring (1) Wastewater sample was not analyzed for annual constituents of concern in Attachment A. Violates Board Order R6V-2015-0057 MRP II.A.1.a. (2) Annual documentation of instrument calibration and performance checks was not included in the 2021 2nd Half/Annual monitoring report. Violates Board Order R6V-2015-0057 MRP II.G.1.d. and MRP IV.A.3. (3) List of all monitoring pairs that have exhibited a verified measurably significant increase was not included. Violates Board Order R6V-2015-0057 MRP IV.3.a. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115537 12/31/2021 Deficient Monitoring (1) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d (2) Storm water sample from FCC catchments was not analyzed for Nitrate. Violates Board Order R6V-2015-0057 MRP II.E. (3) The Operation and Maintenance summary did not discuss the calibration of any wastewater flow measuring devices. Violates Board Order R6V-2015-0057 MRP II.F.3. (4) Failure to comment on whether there are any physical evidence indications of a release. Violates Board Order R6V-2015-0057 MRP III.B.1. (5) Failure to provide laboratory analytical results/reports for all laboratory analyses. Violates Board Order R6V-2015-0057 WDR III.F.2. MRP II. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115536 11/18/2021 Groundwater (1) Exceeded the CUSUM limit of Chloride, Mercury, and Sulfate during the 2021 2nd Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. (2) Exceeded the MDL of Chloroform during the 2021 2nd half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115535 12/31/2021 Order Conditions (1) Failure to maintain the following groundwater monitoring or extraction wells in good working order EXT-06, EXT-12, GWM-32, GWM-43, GWM-43, GWM-60, and GWM-107. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain the following surface impoundments in good working order BAP-6,R-Pond Compartment 1, and R-Pond Compartment 2. Violates Board Order R6V-2015-0057 WDR II.A.14. (3) Daily freeboard measurements were not included in the 2020 1st half monitoring report. MRP II.A.3.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115534 03/16/2021 Deficient Monitoring Unsaturated zone moisture exceeded upper tolerance limits. Field verification testing and Water Board notification has not been completed. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115533 02/28/2021 Order Conditions Surface impoundment action leakage rates exceeded. Violates Board Order R6V-2015-0057-A1 MRP II.A.4.b. Table 1 Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115532 06/30/2021 Deficient Monitoring (1) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d (2) Storm water sample from FCC catchments was not analyzed for Nitrate. Violates Board Order R6V-2015-0057 MRP II.E. (3) The Operation and Maintenance summary did not discuss the calibration of any wastewater flow measuring devices. Violates Board Order R6V-2015-0057 MRP II.F.3. (4) Failure to comment on whether there are any physical evidence indications of a release. Violates Board Order R6V-2015-0057 MRP III.B.1. (5) Failure to provide laboratory analytical results/reports for all laboratory analyses. Violates Board Order R6V-2015-0057 WDR III.F.2. MRP II. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115531 06/03/2021 Groundwater (1) Exceeded the CUSUM limit of Bicarbonate Alkalinity as CACO3, Boron, Calcium, Chloride, Fluoride, Iron, Magnesium, Mercury, Sulfate, Total Dissolved Solids during the 2021 1st Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. (2) Exceeded MDL of Chloroform and Trichloroethene during the 2021 1st half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115530 06/30/2021 Order Conditions (1) Failure to maintain the following groundwater monitoring or extraction wells in good working order EXT-02, EXT-04, EXT-05, EXT-06, EXT-12, GWM-32, GWM-43, GWM-60, and GWM-107. Violates Board Order R6V-2015-0057 WDR II.A.14. (2) Failure to maintain the following surface impoundments in good working order BAP-6, R-Pond Compartment 2, and R-Pond Compartment 2. Violates Board Order R6V-2015-0057 WDR II.A.14 (3) The freeboard of Surface Impoundments R-Pond 7 was less than 2 feet on one day the 2021 1st half monitoring period. Violates Board Order R6V-2015-0057 WDR II.B.3. (4) Daily freeboard measurements were not included in the 2020 1st half monitoring report. MRP II.A.3.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115528 08/17/2020 Deficient Monitoring Unsaturated zone moisture exceeded upper tolerance limits. Field verification testing and Water Board notification has not been completed. Violates Board Order R6V-2015-0057 MRP II.A.5.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115527 07/31/2020 Order Conditions Surface impoundment action leakage rates exceeded. Violates Board Order R6V-2015-0057-A1 MRP II.A.4.b. Table 1 Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115526 03/30/2021 Late Report The 2020 Annual Monitoring Report was due on March 30, 2021 and was turned in on May 7, 2021. The report was 38 Days Late. Violates Board Order R6V-2015-0057 MRP IV.A.1. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115525 12/31/2020 Deficient Reporting (1) Wastewater sample was not analyzed for annual constituents of concern in Attachment A. Violates Board Order R6V-2015-0057 MRP II.A.1.a. (2) Annual documentation of instrument calibration and performance checks was not included in the 2020 2nd Half/Annual monitoring report. Violates Board Order R6V-2015-0057 MRP II.G.1.d. and MRP IV.A.3. (3) List of all monitoring pairs that have exhibited a verified measurably significant increase was not included. Violates Board Order R6V-2015-0057 MRP IV.3.a. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115524 12/31/2020 Deficient Monitoring (1) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d (2) Storm water sample from FCC catchments was not analyzed for Nitrate. Violates Board Order R6V-2015-0057 MRP II.E. (3) The Operation and Maintenance summary did not discuss the calibration of any wastewater flow measuring devices. Violates Board Order R6V-2015-0057 MRP II.F.3. (4) Failure to comment on whether there are any physical evidence indications of a release. Violates Board Order R6V-2015-0057 MRP III.B.1. (5) Failure to provide laboratory analytical results/reports for all laboratory analyses. Violates Board Order R6V-2015-0057 WDR III.F.2. MRP II. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115523 10/29/2020 Groundwater (1) Exceeded the CUSUM limit of Fluoride during the 2020 2nd Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. (2) Exceeded the MDL of Chloroform, Phenolics, and Trichloroethene during the 2020 2nd Half monitoring period. Violates Board Order R6V-2015-0057 MRP I.3. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115522 12/31/2020 Order Conditions (1) Failure to maintain LCRS metering equipment in good working order to achieve compliance with BO. WDR II.A.14. (2) Failure to maintain the following groundwater monitoring or extraction wells in good working order 3M-71, EXT-01, EXT-02, EXT-03, EXT-06, EXT-09, EXT-12, GWM-05, GWM-27, GWM-28, GWM-32, GWM-43, GWM-45, GWM-46, GWM-59A, GWM-60, and GWM-107. Violates Board Order R6V-2015-0057 WDR II.A.14. (3) Daily freeboard measurements were not included in the 2020 1st half monitoring report. MRP II.A.3.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115521 07/30/2020 Late Report The 2020 1st half Monitoring Report was due on July 30, 2020 and was turned in on October 10, 2020. The report was 72 Days Late. Violates Board Order R6V-2015-0057 MRP IV.A.1. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115517 06/30/2020 Deficient Monitoring (1) Wastewater average daily flow, volume of flow, and cumulative flow to each surface impoundment was not reported. Violates Board Order R6V-2015-0057 MRP II.A.1.b-d (2) Storm water sample from FCC catchments was not analyzed for Nitrate. Violates Board Order R6V-2015-0057 MRP II.E. (3) The Operation and Maintenance summary did not discuss the calibration of any wastewater flow measuring devices. Violates Board Order R6V-2015-0057 MRP II.F.3. (4) Failure to comment on whether there are any physical evidence indications of a release. Violates Board Order R6V-2015-0057 MRP III.B.1. (5) Failure to provide laboratory analytical results/reports for all laboratory analyses. Violates Board Order R6V-2015-0057 WDR III.F.2. MRP II. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1115508 06/30/2020 Order Conditions (1) Failure to maintain LCRS metering equipment in good working order to achieve compliance with BO. WDR II.A.14. (2) Failure to maintain the following groundwater monitoring or extraction wells in good working order 3M-71, EXT-03, GWM-28, GWM-30, GWM-43, and GWM-60. Violates Board Order R6V-2015-0057 WDR II.A.14. (3) The freeboard of Surface Impoundments R-Pond 4 was less than 2 feet on two days throughout the 2020 1st half monitoring period. Violates Board Order R6V-2015-0057 WDR II.B.3. (4) Daily freeboard measurements were not included in the 2020 1st half monitoring report. MRP II.A.3.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1104478 05/19/2022 Order Conditions Failure to maintain total arsenic concentrations below 500 parts per million (ppm). BAP 5 arsenic sampling result 672 ppm. Arsenic exceedance caused because tailings sump flow that was directed to BAP 5 was moved to another pond for dust control. The tailings sump flow does not contain arsenic. Violation of Board Order R6V-2015-0057, Section II.B.6 Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1102499 12/31/2021 Deficient Reporting Failure to report the results of the 2021 Five-Year COC Program to the Water Board within 45 days following the end of the monitoring period (February 14, 2022) Board Order No. R6V-2015-0057, III.F and MRP, Section IV.A.4. Violation None Report Boron Mine Facility 403003 R6V-2015-0057 Y
1102498 12/31/2021 Deficient Monitoring Failure to conduct the required sampling for the Five-Year COC Program during the 2021 calendar year. Board Order No. R6V-2015-0057, III.F and MRP, Section II.G.2.b. Violation N Report Boron Mine Facility 403003 R6V-2015-0057 Y
1082314 09/25/2020 Order Conditions On September 25, 2020, Water Board staff were notified of a BAP 6 release. U.S. Borax representatives observed airborne waste material (dust) above BAP 6 during a windy afternoon. Upon closer inspection of BAP 6, waste material was observed to have been deposited outside the WMU on the access road adjacent to the BAP 6 surface impoundment embankment. Violation of Requirements and Prohibitions, Section II.A.3. Violation N Inspection Boron Mine Facility 403003 R6V-2015-0057 Y
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 49
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
460528 Notice of Violation None NOV 03/24/2025 for US Borax Inc LNDISPOTH 03/24/2025 Active
455401 13267 Letter None 13267 Letter 12/04/2023 for US Borax Inc LNDISPOTH 12/04/2023 Active
452351 Oral Communication None Oral Com 04/20/2023 for US Borax Inc LNDISPOTH 04/20/2023 Active
449819 Oral Communication None Oral Com 11/08/2022 for US Borax Inc LNDISPOTH 05/25/2022 Historical
449592 Notice of Violation None NOV 03/30/2022 for US Borax Inc LNDISPOTH 03/30/2022 Historical
441506 Notice of Violation None NOV 12/03/2020 for US Borax Inc LNDISPOTH 12/03/2020 Active
441069 Notice of Violation None NOV 09/11/2017 for US Borax Inc LNDISPOTH 09/11/2017 Historical
441057 Notice of Violation None NOV 10/20/2020 for US Borax Inc LNDISPOTH 10/20/2020 Historical
397542 Oral Communication None Oral Com 12/11/2013 for EIF Mojave, LLC LNDISP 12/11/2013 Historical
395155 Oral Communication None Oral Com 12/11/2013 for EIF Mojave, LLC LNDISP 12/11/2013 Historical
394166 Staff Enforcement Letter None SEL 11/26/2013 for US Borax Inc LNDISP 11/26/2013 Historical
377136 Notice of Violation R6V-2006-0025 NOV - RIO TINTO MINERALS (12/24/2010) LNDISP 12/24/2010 Active
371430 Notice of Violation R6V-2006-0025 NOV - RIO TINTO MINERALS (09/14/2009) LNDISP 09/14/2009 Active
356611 Notice of Violation R6V-2006-0025 Notice of Violation for US Borax Inc LNDISP 04/14/2008 Historical
252162 Staff Enforcement Letter UNKNOWN Enforcement - 6B152004001 LNDISP 08/02/2004 Historical
248961 Oral Communication UNKNOWN Enforcement - 6B152004002 LNDISP 07/01/2002 Historical
248691 Oral Communication UNKNOWN Enforcement - 6B152004001 TPCA 08/27/2002 Historical
245548 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 11/04/2002 Historical
244391 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 11/08/2000 Historical
244388 Notice of Violation UNKNOWN Enforcement - 6B152004001 LNDISP 10/13/2000 Historical
244384 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 09/28/2000 Historical
244341 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 09/24/2000 Historical
244126 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 06/22/2000 Historical
244032 Notice to Comply UNKNOWN Enforcement - 6B152004001 LNDISP 06/06/2000 Historical
243824 Oral Communication UNKNOWN Enforcement - 6B152004002 LNDISP 04/20/2000 Historical
243819 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 03/20/2000 Historical
243775 Notice of Violation UNKNOWN Enforcement - 6B152004001 LNDISP 03/06/2000 Historical
241177 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 03/18/2002 Historical
238820 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 12/27/2001 Historical
238716 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 10/22/2001 Historical
235356 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 07/10/2001 Historical
234683 Oral Communication UNKNOWN Enforcement - 6B152004001 LNDISP 03/28/2001 Historical
223144 Admin Civil Liability R6V-1998-0022 Enforcement - 6B152004001 LNDISP 04/16/1998 Historical
219702 Clean-up and Abatement Order 85-016 Enforcement - 6B152004001 LNDISP 12/31/1985 Historical
219576 Clean-up and Abatement Order 90-03701 Enforcement - 6B152004001 LNDISP 05/10/1990 Historical
Total Enforcement Actions: 35
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 04/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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