St. Marys Cement U.S. LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Training plans.
St Marys Cement-Detroit · 200243430 CFR 46.3(b) · $151.00 proposed penalty
Protective equipment and clothing for hazards and irritants.
St Marys Cement-Detroit · 200243430 CFR 56.15006 · Significant and substantial (S&S) · $2,712.00 proposed penalty
Work on power circuits.
St Marys Cement-Detroit · 200243430 CFR 56.12017 · Significant and substantial (S&S) · $2,712.00 proposed penalty
Spot Inspection
St Marys Cement-Detroit · 20024347.5 on-site hours reported
Spot Inspection
St Marys Cement-Detroit · 200243412.0 on-site hours reported
Electrical
St Marys Cement-Detroit · 2002434Dys 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.
Handtools (nonpowered)
St Marys Cement-Detroit · 2002434No 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.
Compliance Follow-up Inspection
St Marys Cement-Detroit · 20024340.8 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
St Marys Cement-Detroit · 20024343.3 on-site hours reported
Barricades and warning signs.
St Marys Cement-Detroit · 200243430 CFR 56.20011 · $165.00 proposed penalty
Hoisting
St. Marys Cement-Charlevoix · 2000038Accident 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.
Handtools (nonpowered)
St. Marys Cement-Charlevoix · 2000038Dys 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.
Handling of materials
St. Marys Cement-Charlevoix · 2000038No 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.
Handling of materials
St. Marys Cement-Charlevoix · 2000038Dys 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.
Verbal Hazard Complaint Inspections
St. Marys Cement-Charlevoix · 20000384.5 on-site hours reported
Compliance Follow-up Inspection
St. Marys Cement-Charlevoix · 20000384.5 on-site hours reported
Compliance Follow-up Inspection
St. Marys Cement-Charlevoix · 20000385.3 on-site hours reported
Procedures during repairs or maintenance.
St. Marys Cement-Charlevoix · 200003830 CFR 56.14105 · Significant and substantial (S&S) · $15,768.00 proposed penalty
Barricades and warning signs.
St. Marys Cement-Charlevoix · 200003830 CFR 56.20011 · Significant and substantial (S&S) · $3,022.00 proposed penalty
Procedures during repairs or maintenance.
St. Marys Cement-Charlevoix · 200003830 CFR 56.14105 · Significant and substantial (S&S) · $11,450.00 proposed penalty
Verbal Hazard Complaint Inspections
St. Marys Cement-Charlevoix · 200003820.8 on-site hours reported
Flying or falling materials.
St. Marys Cement-Charlevoix · 200003830 CFR 56.14110 · $151.00 proposed penalty
Housekeeping.
St. Marys Cement-Charlevoix · 200003830 CFR 56.20003(a) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Electrical conductors.
St. Marys Cement-Charlevoix · 200003830 CFR 56.12004 · $1,219.00 proposed penalty
Testing grounding systems.
St. Marys Cement-Charlevoix · 200003830 CFR 56.12028 · $151.00 proposed penalty
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
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.