Tolsa Wyoming Bentonite Plant
Temporarily Idled
Facility
Nonmetal
Operator: Tolsa Wyoming Bentonite
Controller: Tolsa S A
Location: Casper, Natrona County, WY
Employees: 8
153
Violations
53
S&S Violations
23
Accidents
$102K
Penalties
Recent Violations
View all 153 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 07/17/2025 | 56.12018 | Non-S&S | ModNegligence | $193 |
| 07/17/2025 | 56.4201(a)(1) | Non-S&S | LowNegligence | $151 |
| 07/17/2025 | 56.12032 | Non-S&S | ModNegligence | $193 |
| 07/17/2025 | 56.12020 | Non-S&S | ModNegligence | $193 |
| 12/18/2024 | 56.4201(a)(1) | Non-S&S | ModNegligence | $288 |
| 12/18/2024 | 56.14205 | Non-S&S | ModNegligence | $193 |
| 12/18/2024 | 56.12004 | Non-S&S | ModNegligence | $193 |
| 12/18/2024 | 56.12032 | S&S | HighNegligence | $4,749 |
| 12/18/2024 | 56.12004 | S&S | ModNegligence | $959 |
| 12/18/2024 | 56.12032 | Non-S&S | ModNegligence | $193 |
| 12/18/2024 | 56.4201(a)(1) | Non-S&S | ModNegligence | $288 |
| 08/14/2024 | 56.18002(a) | S&S | ModNegligence | $935 |
| 08/14/2024 | 56.14107(a) | Non-S&S | ModNegligence | $280 |
| 08/14/2024 | 56.20003(a) | S&S | ModNegligence | $935 |
| 08/14/2024 | 56.11012 | Non-S&S | ModNegligence | $189 |
| 08/14/2024 | 56.11002 | Non-S&S | HighNegligence | $2,079 |
| 08/14/2024 | 56.14107(a) | Non-S&S | ModNegligence | $280 |
| 08/14/2024 | 56.12004 | Non-S&S | ModNegligence | $626 |
| 08/14/2024 | 56.18010 | Non-S&S | ModNegligence | $189 |
| 08/14/2024 | 56.12028 | Non-S&S | ModNegligence | $626 |
Accidents & Injuries
View all 23 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 03/18/2024 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 83d lost |
| 08/28/2019 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 65d lost |
| 05/13/2016 | HOISTING | DAYS AWAY FROM WORK ONLY | 282d lost |
| 10/30/2013 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 09/27/2013 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 09/20/2013 | STRIKING OR BUMPING | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/30/2013 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/09/2013 | FIRE | DAYS AWAY FROM WORK ONLY | 27d lost |
| 07/12/2013 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/05/2013 | FALLING/SLIDING/ROLLING MATERIALS | DAYS AWAY FROM WORK ONLY | 2d lost |
Inspections
View all 52 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 07/16/2025 | 07/20/2025 | 21.00 | 1 |
| 12/18/2024 | 12/18/2024 | 9.00 | 1 |
| 08/13/2024 | 08/20/2024 | 17.75 | 1 |
| 03/11/2024 | 03/13/2024 | 29.00 | 1 |
| 08/07/2023 | 08/11/2023 | 38.75 | 1 |
| 10/12/2022 | 10/15/2022 | 18.00 | 1 |
| 07/14/2022 | 07/19/2022 | 50.50 | 1 |
| 04/20/2022 | 04/20/2022 | 10.00 | 1 |
| 03/31/2022 | 04/05/2022 | 60.25 | 1 |
| 05/18/2021 | 05/19/2021 | 14.00 | 1 |
Mine Details
MSHA Mine ID4801751
Mine TypeFacility
StatusTemporarily Idled
CommodityNonmetal
SIC DescriptionBentonite
Employees8
Days/Week0.0
Coordinates43.0219440, -106.6275000
Nearest TownCasper
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Frequently Asked Questions
How many MSHA violations does Tolsa Wyoming Bentonite Plant have?
Tolsa Wyoming Bentonite Plant has 153 MSHA violations on record, of which 53 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $102K.
What type of mine is Tolsa Wyoming Bentonite Plant?
Tolsa Wyoming Bentonite Plant is a Facility mine producing Nonmetal, located in Casper, Natrona County, WY. It currently has 8 employees.
Has anyone been injured or killed at Tolsa Wyoming Bentonite Plant?
According to MSHA records, Tolsa Wyoming Bentonite Plant has 23 reported accident/injury records and 0 fatalities on file.
Who operates Tolsa Wyoming Bentonite Plant?
Tolsa Wyoming Bentonite Plant is operated by Tolsa Wyoming Bentonite and controlled by Tolsa S A. MSHA Mine ID: 4801751.