Owens Lake Mine Metal/Non-Metal
U S Borax Inc
· Surface
Controlled by
Rio Tinto Group
Lone Pine,
Inyo County,
CA
·
Intermittent
MSHA Mine ID: 0402834
Owens Lake Mine has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2000
24
citations
6
significant & substantial
$4,549
proposed penalties
$4,549
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
50
inspections on record
636
inspection hours
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Rate withheld: 636 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Owens Lake Mine has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
24 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-02-20.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 2,370 | 0 | 0 | 0.0 |
| 2025 Q3 | 3,295 | 0 | 0 | 0.0 |
| 2025 Q2 | 2,640 | 0 | 0 | 0.0 |
| 2025 Q1 | 525 | 0 | 0 | 0.0 |
| 2024 Q3 | 1,586 | 0 | 0 | 0.0 |
| 2024 Q2 | 2,300 | 0 | 0 | 0.0 |
| 2024 Q1 | 2,135 | 1 | 0 | 468.4 |
| 2023 Q4 | 3,008 | 0 | 0 | 0.0 |
Show 95 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q3 | 3,114 | 0 | 0 | 0.0 |
| 2023 Q2 | 3,319 | 1 | 1 | 301.3 |
| 2023 Q1 | 3,889 | 0 | 0 | 0.0 |
| 2022 Q4 | 2,916 | 0 | 0 | 0.0 |
| 2022 Q3 | 3,351 | 0 | 0 | 0.0 |
| 2022 Q2 | 3,409 | 0 | 0 | 0.0 |
| 2022 Q1 | 3,630 | 0 | 0 | 0.0 |
| 2021 Q4 | 3,835 | 1 | 0 | 260.8 |
| 2021 Q3 | 3,050 | 0 | 0 | 0.0 |
| 2021 Q2 | 3,240 | 0 | 0 | 0.0 |
| 2021 Q1 | 2,635 | 0 | 0 | 0.0 |
| 2020 Q4 | 2,270 | 0 | 0 | 0.0 |
| 2020 Q3 | 2,632 | 0 | 0 | 0.0 |
| 2020 Q2 | 3,082 | 1 | 0 | 324.5 |
| 2020 Q1 | 3,254 | 0 | 0 | 0.0 |
| 2019 Q4 | 2,445 | 1 | 1 | 409.0 |
| 2019 Q3 | 3,093 | 1 | 0 | 323.3 |
| 2019 Q2 | 2,470 | 0 | 0 | 0.0 |
| 2019 Q1 | 2,600 | 1 | 0 | 384.6 |
| 2018 Q4 | 2,414 | 0 | 0 | 0.0 |
| 2018 Q3 | 2,410 | 0 | 0 | 0.0 |
| 2018 Q2 | 2,490 | 1 | 0 | 401.6 |
| 2018 Q1 | 2,610 | 0 | 0 | 0.0 |
| 2017 Q4 | 2,980 | 2 | 0 | 671.1 |
| 2017 Q3 | 3,338 | 0 | 0 | 0.0 |
| 2017 Q2 | 3,810 | 0 | 0 | 0.0 |
| 2017 Q1 | 2,069 | 0 | 0 | 0.0 |
| 2016 Q4 | 2,303 | 0 | 0 | 0.0 |
| 2016 Q3 | 2,786 | 0 | 0 | 0.0 |
| 2016 Q2 | 2,398 | 0 | 0 | 0.0 |
| 2016 Q1 | 2,040 | 0 | 0 | 0.0 |
| 2015 Q4 | 2,295 | 0 | 0 | 0.0 |
| 2015 Q3 | 2,679 | 0 | 0 | 0.0 |
| 2015 Q2 | 2,280 | 0 | 0 | 0.0 |
| 2015 Q1 | 1,918 | 0 | 0 | 0.0 |
| 2014 Q4 | 1,800 | 0 | 0 | 0.0 |
| 2014 Q3 | 1,870 | 0 | 0 | 0.0 |
| 2014 Q2 | 1,750 | 0 | 0 | 0.0 |
| 2014 Q1 | 1,910 | 0 | 0 | 0.0 |
| 2013 Q4 | 1,730 | 0 | 0 | 0.0 |
| 2013 Q3 | 2,160 | 0 | 0 | 0.0 |
| 2013 Q2 | 1,890 | 0 | 0 | 0.0 |
| 2013 Q1 | 1,780 | 1 | 0 | 561.8 |
| 2012 Q4 | 1,779 | 0 | 0 | 0.0 |
| 2012 Q3 | 1,779 | 0 | 0 | 0.0 |
| 2012 Q2 | 1,830 | 0 | 0 | 0.0 |
| 2012 Q1 | 1,966 | 0 | 0 | 0.0 |
| 2011 Q4 | 1,600 | 0 | 0 | 0.0 |
| 2011 Q3 | 1,720 | 0 | 0 | 0.0 |
| 2011 Q2 | 1,860 | 0 | 0 | 0.0 |
| 2011 Q1 | 1,740 | 0 | 0 | 0.0 |
| 2010 Q4 | 1,790 | 1 | 0 | 558.7 |
| 2010 Q3 | 1,843 | 0 | 0 | 0.0 |
| 2010 Q2 | 1,687 | 0 | 0 | 0.0 |
| 2010 Q1 | 1,605 | 0 | 0 | 0.0 |
| 2009 Q4 | 1,380 | 0 | 0 | 0.0 |
| 2009 Q3 | 1,610 | 0 | 0 | 0.0 |
| 2009 Q2 | 1,790 | 1 | 1 | 558.7 |
| 2009 Q1 | 1,830 | 0 | 0 | 0.0 |
| 2008 Q4 | 1,800 | 0 | 0 | 0.0 |
| 2008 Q3 | 1,948 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,806 | 0 | 0 | 0.0 |
| 2008 Q1 | 1,930 | 0 | 0 | 0.0 |
| 2007 Q4 | 1,743 | 1 | 0 | 573.7 |
| 2007 Q3 | 1,752 | 0 | 0 | 0.0 |
| 2007 Q2 | 1,710 | 0 | 0 | 0.0 |
| 2007 Q1 | 1,775 | 0 | 0 | 0.0 |
| 2006 Q4 | 1,638 | 0 | 0 | 0.0 |
| 2006 Q3 | 1,761 | 0 | 0 | 0.0 |
| 2006 Q2 | 1,850 | 1 | 0 | 540.5 |
| 2006 Q1 | 1,884 | 0 | 0 | 0.0 |
| 2005 Q4 | 1,681 | 2 | 0 | 1189.8 |
| 2005 Q3 | 2,496 | 0 | 0 | 0.0 |
| 2005 Q2 | 2,663 | 0 | 0 | 0.0 |
| 2005 Q1 | 2,782 | 0 | 0 | 0.0 |
| 2004 Q4 | 2,549 | 0 | 0 | 0.0 |
| 2004 Q3 | 2,683 | 0 | 0 | 0.0 |
| 2004 Q2 | 2,803 | 0 | 0 | 0.0 |
| 2004 Q1 | 2,684 | 0 | 0 | 0.0 |
| 2003 Q4 | 2,463 | 0 | 0 | 0.0 |
| 2003 Q3 | 2,291 | 0 | 0 | 0.0 |
| 2003 Q2 | 2,655 | 0 | 0 | 0.0 |
| 2003 Q1 | 2,631 | 0 | 0 | 0.0 |
| 2002 Q4 | 2,420 | 0 | 0 | 0.0 |
| 2002 Q3 | 2,633 | 0 | 0 | 0.0 |
| 2002 Q2 | 2,847 | 3 | 1 | 1053.7 |
| 2002 Q1 | 2,732 | 0 | 0 | 0.0 |
| 2001 Q4 | 2,563 | 0 | 0 | 0.0 |
| 2001 Q3 | 2,696 | 0 | 0 | 0.0 |
| 2001 Q2 | 2,813 | 1 | 0 | 355.5 |
| 2001 Q1 | 2,838 | 0 | 0 | 0.0 |
| 2000 Q4 | 2,482 | 0 | 0 | 0.0 |
| 2000 Q3 | 2,722 | 3 | 2 | 1102.1 |
| 2000 Q2 | 2,762 | 0 | 0 | 0.0 |
| 2000 Q1 | 2,839 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
For insurers, brokers, and safety consultants
The full compliance file on Owens Lake Mine
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.