ACTIVE / OPERATOR PORTFOLIO

Tata Chemicals Soda Ash Partners LLC

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

MSHA OPERATOR IDL11009

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. accident220260790029
    Tata Chemicals Mine · 4800155

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    B crew switching T15. IE directed operator over radio to shove 4 cars to a joint. Operator stoppedshort;couplers misaligned.IE entered red zone without protection, violating CS-4(Red Zone) and CS-27 (Adjusting mismatched coupler with or without a device(SafeTRAX) to line couplers. Used their foot to align couplers. Operator continued shoving; IE foot was caught and pinched between.

  2. inspectionF014CE6
    Tata Chemicals Mine · 4800155

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

  3. inspectionF027692
    Tata Chemicals Mine · 4800155

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

  4. inspectionF019AE9
    Tata Chemicals Mine · 4800155

    Compliance Follow-up Inspection · 12.0 on-site hours

  5. inspectionF019AE8
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 5.5 on-site hours

  6. inspectionF02FE8B
    Tata Chemicals Mine · 4800155

    Verbal Hazard Complaint Inspections · 6.0 on-site hours

  7. inspection6944698
    Tata Chemicals Mine · 4800155

    Compliance Follow-up Inspection · 2.0 on-site hours

  8. inspectionF014CE2
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 5.0 on-site hours

  9. inspectionF0264EC
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 7.5 on-site hours

  10. inspectionF014CE1
    Tata Chemicals Mine · 4800155

    Compliance Follow-up Inspection · 5.8 on-site hours

  11. violation5057437
    Tata Chemicals Mine · 4800155

    57.5001(a)/.5005 · $151.00 proposed

  12. inspectionF0264EB
    Tata Chemicals Mine · 4800155

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

  13. inspectionF02768D
    Tata Chemicals Mine · 4800155

    Impoundment Spot Inspection · 6.5 on-site hours

  14. violation5057436
    Tata Chemicals Mine · 4800155

    57.14100(b)

  15. violation9904959
    Tata Chemicals Mine · 4800155

    57.19120 · S&S · $504.00 proposed

  16. violation9904958
    Tata Chemicals Mine · 4800155

    57.14100(c) · S&S · $1,679.00 proposed

  17. violation5057888
    Tata Chemicals Mine · 4800155

    45.3 · $151.00 proposed

  18. inspectionF02FE84
    Tata Chemicals Mine · 4800155

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

  19. violation5057887
    Tata Chemicals Mine · 4800155

    57.14101(a)(2) · $151.00 proposed

  20. violation5057886
    Tata Chemicals Mine · 4800155

    57.14103(b) · S&S · $504.00 proposed

  21. violation5057885
    Tata Chemicals Mine · 4800155

    57.4203 · $151.00 proposed

  22. violation5057884
    Tata Chemicals Mine · 4800155

    57.4201(a)(2) · $151.00 proposed

  23. violation9904957
    Tata Chemicals Mine · 4800155

    57.20003(a) · $151.00 proposed

  24. violation5057883
    Tata Chemicals Mine · 4800155

    57.12032 · $165.00 proposed

  25. violation9905469
    Tata Chemicals Mine · 4800155

    57.20003(a) · $151.00 proposed

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 controller.

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