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. violation5212259
    Tata Chemicals Mine · 4800155

    57.12028

  2. violation5212258
    Tata Chemicals Mine · 4800155

    57.20003(a) · S&S

  3. violation5212257
    Tata Chemicals Mine · 4800155

    57.12028

  4. violation5212256
    Tata Chemicals Mine · 4800155

    57.20003(a) · S&S

  5. violation5212255
    Tata Chemicals Mine · 4800155

    57.12028

  6. violation5212254
    Tata Chemicals Mine · 4800155

    57.14207

  7. violation5212253
    Tata Chemicals Mine · 4800155

    57.12028

  8. violation5212252
    Tata Chemicals Mine · 4800155

    57.4130(a)(1)

  9. violation5212251
    Tata Chemicals Mine · 4800155

    57.12028

  10. violation5212250
    Tata Chemicals Mine · 4800155

    57.4104(a)

  11. inspectionF014D01
    Tata Chemicals Mine · 4800155

    103(i) Spot Inspections · 1.0 on-site hours

  12. violation5212249
    Tata Chemicals Mine · 4800155

    57.16006

  13. violation5212248
    Tata Chemicals Mine · 4800155

    57.20003(a)

  14. violation5212247
    Tata Chemicals Mine · 4800155

    57.12028

  15. violation5212246
    Tata Chemicals Mine · 4800155

    57.12004

  16. violation5212245
    Tata Chemicals Mine · 4800155

    57.12018

  17. violation5213507
    Tata Chemicals Mine · 4800155

    62.130(a)

  18. violation5212244
    Tata Chemicals Mine · 4800155

    57.12028

  19. violation5212243
    Tata Chemicals Mine · 4800155

    57.11017

  20. violation5212242
    Tata Chemicals Mine · 4800155

    57.14207

  21. violation5212241
    Tata Chemicals Mine · 4800155

    57.12032

  22. violation5212240
    Tata Chemicals Mine · 4800155

    57.20003(c)

  23. violation5107852
    Tata Chemicals Mine · 4800155

    57.12030

  24. violation5107851
    Tata Chemicals Mine · 4800155

    57.12025

  25. violation5107850
    Tata Chemicals Mine · 4800155

    57.20003(c)

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.