ALL STATUSES / OPERATOR PORTFOLIO

St. Marys Cement U.S. LLC

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

MSHA OPERATOR ID0050599

MINE PORTFOLIO

3 of 3 mines and facilities

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

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
St. Marys Cement-Charlevoix2000038 · Active6/8 quarters reportedCharlevoix, MIFacility · MSHA: Cement0573,32719217598.5
St Marys Cement-Detroit2002434 · Active6/8 quarters reportedWayne, MIFacility · MSHA: Cement0276,514503221.8
St. Mary's Cement -Dixon1100118 · AbandonedLee, ILSurface · MSHA: Cement——00—

LOCATION

Portfolio map

3 of 3 mines 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

242

42 significant & substantial (S&S)

  1. 2025 Q171
  2. 2025 Q227
  3. 2025 Q36
  4. 2025 Q419
  5. 2026 Q156
  6. 2026 Q262
  7. 2026 Q31
  8. 2026 Q4 *0

Accident records

20

0 records classified as fatality

  1. 2025 Q12
  2. 2025 Q23
  3. 2025 Q33
  4. 2025 Q40
  5. 2026 Q18
  6. 2026 Q23
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

293,643.00

239 of 242 violations with amounts

  1. 2025 Q126,583
  2. 2025 Q239,066
  3. 2025 Q36,158
  4. 2025 Q46,575
  5. 2026 Q132,455
  6. 2026 Q2182,806
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

820.25

41 inspections · 41 with hours

  1. 2025 Q1372.75
  2. 2025 Q235.00
  3. 2025 Q335.50
  4. 2025 Q490.75
  5. 2026 Q1128.75
  6. 2026 Q2154.50
  7. 2026 Q33.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q171826,583.002010372.8
2025-Q227539,066.0030535.0
2025-Q3626,158.0030635.5
2025-Q41936,575.0000590.8
2026-Q156832,455.00806128.8
2026-Q26216182,806.00307154.5
2026-Q310—1023.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5110750
    St. Marys Cement-Charlevoix · 2000038

    56.13021 · S&S · $7,676.00 proposed

  2. violation5110749
    St. Marys Cement-Charlevoix · 2000038

    56.13021 · S&S · $7,676.00 proposed

  3. violation5110748
    St. Marys Cement-Charlevoix · 2000038

    56.20003(a) · S&S · $9,757.00 proposed

  4. violation5110747
    St. Marys Cement-Charlevoix · 2000038

    56.20003(a) · S&S · $9,757.00 proposed

  5. violation5110746
    St. Marys Cement-Charlevoix · 2000038

    56.20003(a) · S&S · $9,757.00 proposed

  6. violation5110745
    St. Marys Cement-Charlevoix · 2000038

    56.12023 · $465.00 proposed

  7. violation5110744
    St. Marys Cement-Charlevoix · 2000038

    56.20003(a) · S&S · $14,557.00 proposed

  8. violation5110743
    St. Marys Cement-Charlevoix · 2000038

    56.14112(b) · $1,550.00 proposed

  9. violation5110742
    St. Marys Cement-Charlevoix · 2000038

    56.14112(b) · $1,550.00 proposed

  10. violation5110741
    St. Marys Cement-Charlevoix · 2000038

    56.20003(a) · S&S · $9,757.00 proposed

  11. violation5110740
    St. Marys Cement-Charlevoix · 2000038

    56.13021 · $1,550.00 proposed

  12. inspectionF036791
    St. Marys Cement-Charlevoix · 2000038

    Regular Safety and Health Inspection · 103.3 on-site hours

  13. inspectionF036D72
    St Marys Cement-Detroit · 2002434

    Compliance Follow-up Inspection · 3.8 on-site hours

  14. violation5111406
    St Marys Cement-Detroit · 2002434

    56.12032 · $177.00 proposed

  15. violation5111405
    St Marys Cement-Detroit · 2002434

    56.12004 · $151.00 proposed

  16. violation5111404
    St Marys Cement-Detroit · 2002434

    56.14112(b) · $177.00 proposed

  17. violation5111403
    St Marys Cement-Detroit · 2002434

    56.20003(a) · S&S · $2,312.00 proposed

  18. violation5111402
    St Marys Cement-Detroit · 2002434

    56.14107(a) · $151.00 proposed

  19. violation5111401
    St Marys Cement-Detroit · 2002434

    56.12032 · $151.00 proposed

  20. violation5110200
    St Marys Cement-Detroit · 2002434

    56.12004 · $151.00 proposed

  21. inspectionF03AF5B
    St Marys Cement-Detroit · 2002434

    Regular Safety and Health Inspection · 41.5 on-site hours

  22. violation5110199
    St Marys Cement-Detroit · 2002434

    56.12004 · $151.00 proposed

  23. violation5110198
    St Marys Cement-Detroit · 2002434

    56.4201(a)(2) · $151.00 proposed

  24. violation5110197
    St Marys Cement-Detroit · 2002434

    56.13021 · S&S · $697.00 proposed

  25. inspectionF03678E
    St. Marys Cement-Charlevoix · 2000038

    Compliance Follow-up Inspection · 1.0 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 controller.

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