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. violation5110643
    St. Marys Cement-Charlevoix · 2000038

    56.12032 · $226.00 proposed

  2. violation5110642
    St. Marys Cement-Charlevoix · 2000038

    56.4200(b)(2) · $398.00 proposed

  3. violation5110641
    St. Marys Cement-Charlevoix · 2000038

    56.12004 · $1,431.00 proposed

  4. violation5110640
    St. Marys Cement-Charlevoix · 2000038

    56.12023 · $226.00 proposed

  5. violation5110639
    St. Marys Cement-Charlevoix · 2000038

    56.11010 · $226.00 proposed

  6. violation5110638
    St. Marys Cement-Charlevoix · 2000038

    56.4602 · $336.00 proposed

  7. violation5110637
    St. Marys Cement-Charlevoix · 2000038

    56.16006 · $336.00 proposed

  8. violation5110636
    St. Marys Cement-Charlevoix · 2000038

    56.12004 · $432.00 proposed

  9. violation5110635
    St. Marys Cement-Charlevoix · 2000038

    56.4601 · $336.00 proposed

  10. violation5110634
    St. Marys Cement-Charlevoix · 2000038

    56.14112(b) · $697.00 proposed

  11. violation5110633
    St. Marys Cement-Charlevoix · 2000038

    56.4601 · $336.00 proposed

  12. inspectionF0269C5
    St. Marys Cement-Charlevoix · 2000038

    Regular Safety and Health Inspection · 116.5 on-site hours

  13. accident220260400035
    St. Marys Cement-Charlevoix · 2000038

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    While removing liners from the Coal Mill, a fragment broke off while hitting it with a rivet buster. A worker attending nearby was hit by the projectile, which was embedded approx. 2cm into their right thigh. Employee is scheduled to have it removed in surgery on 02/12/26. Employee is currently on restricted duty and another method for liner removal is being evaluated now.

  14. inspectionF02E6EF
    St Marys Cement-Detroit · 2002434

    Compliance Follow-up Inspection · 1.8 on-site hours

  15. accident220260360010
    St. Marys Cement-Charlevoix · 2000038

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was lifting multiple 5 gal buckets of rocks up to a makeshift chute for clean up. They started to feel lower back pain but continued thinking it was only a muscle issue. They took the next day off day due to pain and returned the next day and reported it. They aggravated a previous injury and inflamed the area, the Dr placed them on light duty for 5 days until review

  16. accident220260350028
    St. Marys Cement-Charlevoix · 2000038

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was attempting to move an airslide in Silo 2 to clean it out when they felt pain in groin area. They reported it that day but continued work, the next day they felt worse and was taken in to get it checked out. The ER determined a partial muscle tear in the groin area. Employee has been placed on light duty and unable to lift more than 10lbs until cleared by a Dr.

  17. accident220260500018
    St. Marys Cement-Charlevoix · 2000038

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was engaged in moving steel beams in the pre-heater tower for the installation of headache decks to facilitate vessel entry. During this task, the employee experienced lower back pain after bending over to pick up a beam.

  18. accident220260350019
    St. Marys Cement-Charlevoix · 2000038

    ENTRAPMENT · ACCIDENT ONLY

    Accident narrative

    Contractors were using the personnel elevator in the PHT, Six people and scaffolding were cramped in the car leading to an accidental push of the E-Stop.

  19. accident220260350032
    St. Marys Cement-Charlevoix · 2000038

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    A quarry truck driver sustained a left index finger pinch injury while manually moving a ~288 lb motor that was left obstructing the Secondary Crusher Hoist way walkway. With the hoist out of service, a pony bar was inserted in the lifting eye so two employees could lift it onto a pallet. During the lift, the motor shifted and slid down the bar, pinching the employee's finger.

  20. accident220260350018
    St. Marys Cement-Charlevoix · 2000038

    ENTRAPMENT · ACCIDENT ONLY

    Accident narrative

    Contractors were entrapped in an elevator for 3hrs due to an over-speed sensor being tripped.

  21. accident220260200012
    St. Marys Cement-Charlevoix · 2000038

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Improper operation of bandsaw causing finger laceration.

  22. inspectionF02E6EA
    St Marys Cement-Detroit · 2002434

    Compliance Follow-up Inspection · 2.3 on-site hours

  23. violation5110146
    St Marys Cement-Detroit · 2002434

    56.14101(a)(2) · $209.00 proposed

  24. violation5110145
    St Marys Cement-Detroit · 2002434

    56.16005 · $151.00 proposed

  25. violation5110144
    St Marys Cement-Detroit · 2002434

    56.9315 · $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.