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. violation9697580
    St Marys Cement-Detroit · 2002434

    56.15006 · S&S · $2,712.00 proposed

  2. violation9697579
    St Marys Cement-Detroit · 2002434

    56.12017 · S&S · $2,712.00 proposed

  3. inspectionF0269B0
    St Marys Cement-Detroit · 2002434

    Spot Inspection · 12.0 on-site hours

  4. inspectionF011486
    St Marys Cement-Detroit · 2002434

    Spot Inspection · 7.5 on-site hours

  5. accident220252580018
    St Marys Cement-Detroit · 2002434

    ELECTRICAL · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Notified that an incident occurred. Upon checking near the main shop area, Miner 1 (an electrician) was found lying on the main floor, surrounded by fellow miners. It was determined that the 440 main breaker had experienced a catastrophic failure. Subsequent observations revealed that Miner 1 had borne the brunt of the failure and sustained 2nd-degree burns to both hands.

  6. accident220252410019
    St Marys Cement-Detroit · 2002434

    HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Miner A was chipping debris in the discharge area of the finish mill, when Miner B noticed a fresh wound on Miner A's right forearm. It is believed that material from the mill caused this laceration. Miner A was conveyed to the hospital and released later that day. Miner A returned to work the next day.

  7. inspectionF00DBA8
    St Marys Cement-Detroit · 2002434

    Compliance Follow-up Inspection · 0.8 on-site hours

  8. inspectionF00DBA4
    St Marys Cement-Detroit · 2002434

    103 (g) Written Notification Hazard Complaint Inspectio · 3.3 on-site hours

  9. violation9693047
    St Marys Cement-Detroit · 2002434

    56.20011 · $165.00 proposed

  10. accident220252180004
    St. Marys Cement-Charlevoix · 2000038

    HOISTING · ACCIDENT ONLY

    Accident narrative

    Employee was using the elevator to go up to the 12 pack when the elevator stopped due to a limit switch failing.

  11. accident220251670018
    St. Marys Cement-Charlevoix · 2000038

    HANDTOOLS (NONPOWERED) · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    An employee attempted to break a rake handle by stomping on it. During the attempt, the handle recoiled and struck the employee in the side of the stomach. The pain from the handle caused them to lose consciousness while walking back to the break area. The employee fell down approximately 10 stairs, sustaining two lacerations to the left knee requiring 19 staples.

  12. accident220251340007
    St. Marys Cement-Charlevoix · 2000038

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    The employee removed the calibration weight and it dropped onto the employee's hand, pinching it between the top of the guard and the weight. As a result, the employee sustained a cut that required 8 stitches and a hairline fracture to left hand ring finger.

  13. accident220260350026
    St. Marys Cement-Charlevoix · 2000038

    HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Employee lifted 80-170 lb liners for mill #3 outage and developed right-hand pain after a popping sensation. On May 8 the tendon tightened again; diagnosed with trigger finger. Surgery occurred 1/8/26, with no use of the right hand until 3/11/26. Employee has returned to work with restrictions on 2/2/2026.

  14. inspectionF01559A
    St. Marys Cement-Charlevoix · 2000038

    Verbal Hazard Complaint Inspections · 4.5 on-site hours

  15. inspectionF015596
    St. Marys Cement-Charlevoix · 2000038

    Compliance Follow-up Inspection · 4.5 on-site hours

  16. inspectionF0079BC
    St. Marys Cement-Charlevoix · 2000038

    Compliance Follow-up Inspection · 5.3 on-site hours

  17. violation6184912
    St. Marys Cement-Charlevoix · 2000038

    56.14105 · S&S · $15,768.00 proposed

  18. violation6184911
    St. Marys Cement-Charlevoix · 2000038

    56.20011 · S&S · $3,022.00 proposed

  19. violation6184910
    St. Marys Cement-Charlevoix · 2000038

    56.14105 · S&S · $11,450.00 proposed

  20. inspectionF0079BB
    St. Marys Cement-Charlevoix · 2000038

    Verbal Hazard Complaint Inspections · 20.8 on-site hours

  21. violation5110037
    St. Marys Cement-Charlevoix · 2000038

    56.14110 · $151.00 proposed

  22. violation5110036
    St. Marys Cement-Charlevoix · 2000038

    56.20003(a) · S&S · $2,712.00 proposed

  23. violation6184908
    St. Marys Cement-Charlevoix · 2000038

    56.12004 · $1,219.00 proposed

  24. violation6184907
    St. Marys Cement-Charlevoix · 2000038

    56.12028 · $151.00 proposed

  25. violation5110035
    St. Marys Cement-Charlevoix · 2000038

    56.4603(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.