Tolsa Mines Metal/Non-Metal
Tolsa Wyoming Bentonite Corp.
· Surface
Controlled by
Tolsa S A
Casper,
Natrona County,
WY
·
Temporarily Idled
MSHA Mine ID: 4801660
Tolsa Mines has $8K in proposed MSHA penalties and $0 outstanding across 4 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 2011
31
citations
14
significant & substantial
$8,249
proposed penalties
$6,573
paid to date
80% of proposed penalties paid to date, a $1,676 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
31
inspections on record
494
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: 494 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Tolsa Mines has $8K in proposed MSHA penalties and $0 outstanding across 4 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.$8K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
29 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2021-10-28.
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 Q3 | 0 | 0 | 0 | |
| 2025 Q2 | 0 | 0 | 0 | |
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 0 | 0 | 0 | |
| 2024 Q3 | 0 | 0 | 0 | |
| 2024 Q2 | 0 | 0 | 0 | |
| 2024 Q1 | 0 | 0 | 0 | |
| 2023 Q4 | 0 | 0 | 0 |
Show 50 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q3 | 0 | 0 | 0 | |
| 2023 Q2 | 0 | 0 | 0 | |
| 2023 Q1 | 0 | 0 | 0 | |
| 2022 Q4 | 0 | 0 | 0 | |
| 2022 Q3 | 0 | 0 | 0 | |
| 2022 Q2 | 0 | 0 | 0 | |
| 2022 Q1 | 0 | 0 | 0 | |
| 2021 Q4 | 0 | 1 | 0 | |
| 2020 Q1 | 0 | 1 | 0 | |
| 2019 Q4 | 385 | 0 | 0 | 0.0 |
| 2019 Q3 | 0 | 0 | 0 | |
| 2019 Q2 | 129 | 0 | 0 | 0.0 |
| 2019 Q1 | 768 | 0 | 0 | 0.0 |
| 2018 Q4 | 0 | 0 | 0 | |
| 2018 Q3 | 0 | 0 | 0 | |
| 2018 Q2 | 0 | 0 | 0 | |
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q4 | 92 | 0 | 0 | 0.0 |
| 2017 Q3 | 0 | 0 | 0 | |
| 2017 Q2 | 0 | 0 | 0 | |
| 2017 Q1 | 0 | 0 | 0 | |
| 2016 Q4 | 0 | 2 | 2 | |
| 2016 Q3 | 0 | 1 | 0 | |
| 2016 Q2 | 0 | 0 | 0 | |
| 2016 Q1 | 0 | 0 | 0 | |
| 2015 Q4 | 0 | 0 | 0 | |
| 2015 Q3 | 0 | 0 | 0 | |
| 2015 Q2 | 0 | 1 | 0 | |
| 2015 Q1 | 480 | 2 | 0 | 4166.7 |
| 2013 Q4 | 1,810 | 0 | 0 | 0.0 |
| 2013 Q3 | 2,340 | 4 | 0 | 1709.4 |
| 2013 Q2 | 1,403 | 0 | 0 | 0.0 |
| 2013 Q1 | 1,940 | 0 | 0 | 0.0 |
| 2012 Q4 | 2,016 | 6 | 6 | 2976.2 |
| 2012 Q3 | 2,806 | 0 | 0 | 0.0 |
| 2012 Q2 | 2,400 | 4 | 1 | 1666.7 |
| 2012 Q1 | 2,044 | 0 | 0 | 0.0 |
| 2011 Q4 | 1,440 | 0 | 0 | 0.0 |
| 2011 Q3 | 960 | 1 | 0 | 1041.7 |
| 2011 Q2 | 0 | 2 | 1 | |
| 2011 Q1 | 0 | 0 | 0 | |
| 2010 Q4 | 0 | 0 | 0 | |
| 2006 Q2 | 490 | 0 | 0 | 0.0 |
| 2006 Q1 | 240 | 0 | 0 | 0.0 |
| 2005 Q4 | 240 | 0 | 0 | 0.0 |
| 2005 Q3 | 415 | 0 | 0 | 0.0 |
| 2005 Q2 | 416 | 0 | 0 | 0.0 |
| 2005 Q1 | 240 | 0 | 0 | 0.0 |
| 2004 Q4 | 240 | 0 | 0 | 0.0 |
| 2004 Q3 | 860 | 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 Tolsa Mines
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.