ACTIVE / CONTROLLER PORTFOLIO

Tata Chemicals Ltd

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA CONTROLLER ID0081153

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Tata Chemicals Mine4800155 · Active6/8 quarters reportedSweetwater, WYUnderground · MSHA: Trona01,731,135287112,297.5

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

287

29 significant & substantial (S&S)

  1. 2025 Q154
  2. 2025 Q243
  3. 2025 Q315
  4. 2025 Q432
  5. 2026 Q134
  6. 2026 Q228
  7. 2026 Q368
  8. 2026 Q4 *13

Accident records

11

1 records classified as fatality

  1. 2025 Q12
  2. 2025 Q24
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q23
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

86,026.00

204 of 287 violations with amounts

  1. 2025 Q119,651
  2. 2025 Q214,379
  3. 2025 Q320,380
  4. 2025 Q411,414
  5. 2026 Q111,238
  6. 2026 Q28,662
  7. 2026 Q3302
  8. 2026 Q4 *—

On-site inspection hours

2,297.50

126 inspections · 126 with hours

  1. 2025 Q1303.75
  2. 2025 Q2275.00
  3. 2025 Q3263.25
  4. 2025 Q4363.50
  5. 2026 Q1340.25
  6. 2026 Q2324.25
  7. 2026 Q3345.50
  8. 2026 Q4 *82.00
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q154619,651.002024303.8
2025-Q243214,379.004020275.0
2025-Q315020,380.000016263.3
2025-Q432711,414.000013363.5
2026-Q134511,238.001019340.3
2026-Q22848,662.003016324.3
2026-Q3685302.001116345.5
2026-Q4 *130—00282.0

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. inspectionF01B32D
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 4.3 on-site hours

  2. inspectionF019AB1
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 4.0 on-site hours

  3. inspectionF01B329
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 4.0 on-site hours

  4. inspectionF012549
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 6.0 on-site hours

  5. inspection6945375
    Tata Chemicals Mine · 4800155

    Spot Inspection · 12.5 on-site hours

  6. accident220250510021
    Tata Chemicals Mine · 4800155

    HOISTING · ACCIDENT ONLY

    Accident narrative

    #2 hoist (Primary) went down due to electrical problem, Maintenance Coordinator and electrician used #3 hoist to reach surface. Maintenance conducted troubleshooting and found a bad coil on the main brake. Maintenance replaced the bad coil on the main brake and #2 hoist was up and operating at 9:50 pm. #3 & #6 hoist were still operable during this time.

  7. inspectionF011241
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 3.5 on-site hours

  8. inspectionF01123F
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 6.0 on-site hours

  9. violation9722249
    Tata Chemicals Mine · 4800155

    57.14100(b) · $151.00 proposed

  10. inspectionF01123C
    Tata Chemicals Mine · 4800155

    103 (g) Written Notification Hazard Complaint Inspectio · 2.0 on-site hours

  11. inspectionF01123D
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 2.5 on-site hours

  12. violation9722247
    Tata Chemicals Mine · 4800155

    57.12008 · $151.00 proposed

  13. violation9722246
    Tata Chemicals Mine · 4800155

    57.12018 · $151.00 proposed

  14. inspectionF011239
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 2.0 on-site hours

  15. violation9722245
    Tata Chemicals Mine · 4800155

    57.14205 · $151.00 proposed

  16. violation9722244
    Tata Chemicals Mine · 4800155

    47.41(a) · $151.00 proposed

  17. inspectionF011237
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 4.5 on-site hours

  18. inspectionF011235
    Tata Chemicals Mine · 4800155

    Impoundment Spot Inspection · 11.0 on-site hours

  19. inspectionF019AAE
    Tata Chemicals Mine · 4800155

    Compliance Follow-up Inspection · 1.0 on-site hours

  20. violation9904712
    Tata Chemicals Mine · 4800155

    57.9315 · S&S · $755.00 proposed

  21. violation5051214
    Tata Chemicals Mine · 4800155

    57.20003(a) · $465.00 proposed

  22. violation5051213
    Tata Chemicals Mine · 4800155

    57.14107(a) · S&S · $2,503.00 proposed

  23. violation5051212
    Tata Chemicals Mine · 4800155

    57.14107(a) · $504.00 proposed

  24. violation5051210
    Tata Chemicals Mine · 4800155

    57.20003(a) · $151.00 proposed

  25. inspectionF019AAD
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 6.0 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

1 linked operator.

Relationships reflect the selected mine status and current MSHA controller/operator fields.