Kemmerer Mine
Active
Surface
Coal
Operator: Kemmerer Operations, LLC
Controller: Kemmerer Holdings LLC
Location: Kemmerer, Lincoln County, WY
Employees: 283
1,387
Violations
216
S&S Violations
194
Accidents
$1.4M
Penalties
Recent Violations
View all 1,387 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 12/15/2025 | 77.410(c) | Non-S&S | LowNegligence | $151 |
| 12/15/2025 | 77.410(c) | Non-S&S | LowNegligence | $151 |
| 07/30/2025 | 77.404(a) | Non-S&S | HighNegligence | $549 |
| 07/30/2025 | 77.1710(a) | S&S | HighNegligence | $4,383 |
| 07/29/2025 | 77.205(b) | S&S | HighNegligence | $2,712 |
| 07/29/2025 | 77.206(a) | Non-S&S | ModNegligence | $549 |
| 07/28/2025 | 77.1606(a) | S&S | ModNegligence | $1,037 |
| 07/28/2025 | 77.205(b) | Non-S&S | ModNegligence | $209 |
| 07/18/2025 | 77.404(a) | Non-S&S | ModNegligence | $209 |
| 07/18/2025 | 77.400(d) | Non-S&S | ModNegligence | $209 |
| 02/27/2025 | 77.1713(a) | Non-S&S | ModNegligence | $1,126 |
| 01/16/2025 | 77.505 | Non-S&S | ModNegligence | $165 |
| 01/16/2025 | 77.1104 | Non-S&S | ModNegligence | $165 |
| 01/16/2025 | 77.404(a) | Non-S&S | ModNegligence | $549 |
| 01/15/2025 | 77.400(a) | Non-S&S | ModNegligence | $245 |
| 01/15/2025 | 77.205(b) | Non-S&S | ModNegligence | $165 |
| 01/15/2025 | 77.401(a)(2) | Non-S&S | ModNegligence | $245 |
| 01/14/2025 | 77.208(e) | Non-S&S | ModNegligence | $165 |
| 01/14/2025 | 77.206(a) | Non-S&S | ModNegligence | $165 |
| 01/14/2025 | 77.1104 | Non-S&S | ModNegligence | $177 |
Accidents & Injuries
View all 194 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 11/26/2025 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 8d lost |
| 10/06/2025 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 09/02/2025 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/23/2025 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 05/19/2025 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 02/21/2025 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 91d lost |
| 01/18/2025 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | None |
| 11/16/2024 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 6d lost |
| 09/18/2024 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 05/31/2024 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 320 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 03/03/2026 | 0.00 | 0 | |
| 12/12/2025 | 01/02/2026 | 96.00 | 5 |
| 09/25/2025 | 09/30/2025 | 14.50 | 1 |
| 07/16/2025 | 09/03/2025 | 162.50 | 4 |
| 05/22/2025 | 05/22/2025 | 6.00 | 1 |
| 02/27/2025 | 03/03/2025 | 21.50 | 1 |
| 01/29/2025 | 02/10/2025 | 20.25 | 1 |
| 01/13/2025 | 01/23/2025 | 130.50 | 4 |
| 12/12/2024 | 12/12/2024 | 7.00 | 1 |
| 09/26/2024 | 09/27/2024 | 5.50 | 1 |
Mine Details
MSHA Mine ID4800086
Mine TypeSurface
StatusActive
CommodityCoal
SIC DescriptionCoal (Bituminous)
Employees283
Days/Week6.0
Hours/Shift10.0
Coordinates41.7725000, -110.7725000
Nearest TownKemmerer
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Frequently Asked Questions
How many MSHA violations does Kemmerer Mine have?
Kemmerer Mine has 1387 MSHA violations on record, of which 216 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $1.4M.
What type of mine is Kemmerer Mine?
Kemmerer Mine is a Surface mine producing Coal, located in Kemmerer, Lincoln County, WY. It currently has 283 employees.
Has anyone been injured or killed at Kemmerer Mine?
According to MSHA records, Kemmerer Mine has 194 reported accident/injury records and 0 fatalities on file.
Who operates Kemmerer Mine?
Kemmerer Mine is operated by Kemmerer Operations, LLC and controlled by Kemmerer Holdings LLC. MSHA Mine ID: 4800086.