Data / Mines / Wyoming / Tata Chemicals Mine
Tata Chemicals Mine: 626 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Tata Chemicals Mine is an active trona underground mine in Sweetwater County, Wyoming, operated by Tata Chemicals Soda Ash Partners LLC with 539 employees on MSHA's record (mine ID 4800155). Since January 1, 2022 MSHA inspectors issued 626 citations and orders there with $287,540 in proposed penalties, and 50 accident reports were filed there, with 38 injury or illness cases, 1 of them fatal.
The request: Watch Tata Chemicals Mine (MSHA mine ID 4800155) in Sweetwater County, Wyoming: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4800155
- Status
- Active since February 18, 1982
- Main commodity
- Trona
- Mine type
- Underground
- County
- Sweetwater County, Wyoming
- Nearest town
- Green River
- Operator
- Tata Chemicals Soda Ash Partners LLC
- Parent company
- Tata Chemicals Ltd
- Employees
- 539
- MSHA field office
- Green River WY Field Office
- Citations and orders since January 1, 2022
- 626
- Significant and substantial
- 52 (8.3%)
- Closure orders
- 4
- High negligence or reckless
- 22
- Proposed penalties
- $287,540
- Amount paid so far
- $184,724
- Inspections
- 386
- Inspector hours on site
- 5,353
- Citations per inspection
- 1.62 (all mines 2.30)
- Accident reports
- 50
- Injury and illness cases
- 38
- Fatalities
- 1
- Latest MSHA record
- November 2, 2026
- Citations issued to contractors here
- 100 ($24,308 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 148 | 13 | $84,888 | 6 |
| 2023 | 116 | 8 | $58,394 | 13 |
| 2024 | 101 | 3 | $47,189 | 10 |
| 2025 | 140 | 15 | $65,220 | 4 |
| 2026 | 121 | 13 | $31,849 | 5 |
Standards cited most at Tata Chemicals Mine
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 57.20003 | Underground metal and nonmetal mines | 69 |
| 30 CFR 57.12032 | Underground metal and nonmetal mines | 52 |
| 30 CFR 57.12004 | Underground metal and nonmetal mines | 45 |
| 30 CFR 57.12028 | Underground metal and nonmetal mines | 39 |
| 30 CFR 57.14100 | Underground metal and nonmetal mines | 34 |
| 30 CFR 57.14112 | Underground metal and nonmetal mines | 31 |
| 30 CFR 57.4201 | Underground metal and nonmetal mines | 30 |
| 30 CFR 57.14107 | Underground metal and nonmetal mines | 26 |
| 30 CFR 47.41 | Hazard communication | 20 |
| 30 CFR 57.12018 | Underground metal and nonmetal mines | 15 |
| 30 CFR 57.11001 | Underground metal and nonmetal mines | 13 |
| 30 CFR 57.4104 | Underground metal and nonmetal mines | 12 |
| 30 CFR 57.11002 | Underground metal and nonmetal mines | 11 |
| 30 CFR 57.5001 | Underground metal and nonmetal mines | 11 |
| 30 CFR 62.130 | Occupational noise exposure | 11 |
Injury and illness cases at Tata Chemicals Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Days away from work or restricted activity | 28 |
| No lost time, or an occupational illness | 9 |
What the accident reports at Tata Chemicals Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 13 |
| Hoisting | 12 |
| Handling of materials | 8 |
| Powered haulage | 6 |
| Machinery | 4 |
| Handtools (nonpowered) | 3 |
| Stepping or kneeling on object | 1 |
| Fall of roof or back | 1 |
| Other | 1 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at Tata Chemicals Mine
| Equipment | Reports |
|---|---|
| Elevator | 13 |
| Hand tools (not powered) | 3 |
| Mancar | 3 |
| Pump | 2 |
| Front-end loader | 1 |
| Conveyor | 1 |
| Mine car | 1 |
| Rock or roof bolting machine | 1 |
| Man lift | 1 |
| Hoist | 1 |
Other open mines in Sweetwater County, Wyoming
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| We Soda @ Westvaco | We Soda Alkali, LLC | Sweetwater County, WY | Trona | 815 | 996 |
| American Soda LLC | American Soda LLC | Sweetwater County, WY | Trona | 449 | 804 |
| Big Island Mine & Refinery | Sisecam Wyoming, LLC | Sweetwater County, WY | Trona | 437 | 345 |
| Black Butte And Leucite Hills Mines | Black Butte Coal Company | Sweetwater County, WY | Coal (bituminous) | 59 | 23 |
| Portable Crusher Unit F | Arizona Materials | Sweetwater County, WY | Construction sand and gravel | 9 | 18 |
| Pioneer Trails Pit #565 | Sunroc Corporation | Sweetwater County, WY | Construction sand and gravel | 4 | 17 |
| Jim Bridger Mine | Bridger Coal Company | Sweetwater County, WY | Coal (bituminous) | 160 | 16 |
| Mobile Crusher, 76-4034 | Sunroc Corporation | Sweetwater County, WY | Construction sand and gravel | 3 | 9 |
| 2001 BL Pegson Crusher | H. B. Lee Construction Co., Inc. | Sweetwater County, WY | Construction sand and gravel | 2 | 8 |
| Leucite Mine #11 | Searle Brothers Construction Company | Sweetwater County, WY | Crushed, broken stone | 2 | 7 |
| 2004 Chieftan Screener | Lee Sand and Gravel, Inc | Sweetwater County, WY | Construction sand and gravel | 2 | 3 |
| Kolberg 271B | Searle Brothers Construction Company | Sweetwater County, WY | Construction sand and gravel | 3 | 2 |
| Plattoga Pit | Plattoga Holdings, LLC | Sweetwater County, WY | Construction sand and gravel | 3 | 0 |
| 2016 Metso Nordbert C120 Jaw Crusher Pla | Searle Brothers Construction Company | Sweetwater County, WY | Construction sand and gravel | 2 | 0 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.