Heidelberg Materials AG safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Other
Plymouth Meeting Quarry · 3600052No dys awy frm wrk,no rstr act
Accident narrative
EE was weed eating, hit a bees nest, and received stings on their right thigh. EE went to clinic, had 4 stingers pulled out, and received over the counter meds. EE had a follow up the next day where it was found that their stings had become infected. They were given a prescription medication. EE has remained full duty.
Handling of materials
HM Southeast Cement · 3800007Days restricted activity only
Accident narrative
On 07/16/2026 while the employee was unreeling a hose to refuel equipment, the hose stuck. The employee pulled on the hose to dislodge it and felt a pain in left shoulder. The employee used first aid to treat the pain until 07/22/2026 when it was evaluated and prescribed medication and restricted duty. The employee was released to full duty on 07/24/2026
103 (g) Written Notification Hazard Complaint Inspectio
Mitchell Plant · 12000635.0 on-site hours reported
Regular Safety and Health Inspection
Watertown Plant · 30000497.5 on-site hours reported
Compliance Follow-up Inspection
JEFFERSON QUARRY · 38002330.8 on-site hours reported
Inspection.
Federal Underground · 110281430 CFR 57.4201(a)(2) · $151.00 proposed penalty
Housekeeping.
Mitchell Plant · 120006330 CFR 56.20003(a) · Significant and substantial (S&S) · $6,037.00 proposed penalty
Dust control.
Mitchell Plant · 120006330 CFR 56.9315 · Significant and substantial (S&S) · $1,818.00 proposed penalty
Safety defects; examination, correction and records.
FLEMINGSBURG QUARRY · 150003130 CFR 56.14100(b) · $151.00 proposed penalty
Safety can use.
FLEMINGSBURG QUARRY · 150003130 CFR 56.4402 · $151.00 proposed penalty
Inspection and cover plates.
MT. VERNON MINE & MILL · 150005130 CFR 57.12032 · $151.00 proposed penalty
Examination of working places.
Watertown Plant · 300004930 CFR 56.18002(b) · $151.00 proposed penalty
Construction and maintenance of guards.
Watertown Plant · 300004930 CFR 56.14112(a)(1) · $177.00 proposed penalty
Inspection.
Watertown Plant · 300004930 CFR 56.4201(a)(1) · $151.00 proposed penalty
Securing gas cylinders.
Watertown Plant · 300004930 CFR 56.16005 · $151.00 proposed penalty
Electrical conductors.
Wagner Quarries · 330017530 CFR 56.12004 · $465.00 proposed penalty
Safe access.
Wagner Quarries · 330017530 CFR 56.11001 · Significant and substantial (S&S) · $697.00 proposed penalty
Handling of materials
Sparta Quarry · 0901033No dys awy frm wrk,no rstr act
Accident narrative
Employee was washing beneath a conveyor with a water hose when the water spray rebounded and struck them in the face, covering it small debris. Employee turned off the hose, lowered glasses, and wiped their forehead. When they did so, a piece of rust fell into left eye. Clinic used magnetic tweezers and prescription numbing drops to remove the debris.
Handling of materials
Mason City Plant · 1300095Days restricted activity only
Accident narrative
Employee was picking up a mill door liner and felt pain in EE's lower back. EE's supervisor called work care and the employee agreed to self-treat. During the follow up with work care on 7/20/2026. Employee was seen at occupational health on 7/22/2026 and placed on restricted duty.
Regular Safety and Health Inspection
Oakwood Plant · 30010913.8 on-site hours reported
Testing grounding systems.
Federal Underground · 110281430 CFR 57.12028 · $151.00 proposed penalty
Horns and backup alarms for surface equipment.
Federal Underground · 110281430 CFR 57.14132(a) · $151.00 proposed penalty
Procedures during repairs or maintenance.
UNION BRIDGE MD · 180001730 CFR 56.14105 · Significant and substantial (S&S) · $818.00 proposed penalty
Procedures during repairs or maintenance.
UNION BRIDGE MD · 180001730 CFR 56.14105 · Significant and substantial (S&S) · $697.00 proposed penalty
Procedures during repairs or maintenance.
UNION BRIDGE MD · 180001730 CFR 56.14105 · Significant and substantial (S&S) · $2,936.00 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.