Heidelberg Materials Midwest Agg, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Electrical conductors.
Sandusky Quarry · 330015130 CFR 56.12004 · Significant and substantial (S&S)
Electrical conductors.
Sandusky Quarry · 330015130 CFR 56.12004 · Significant and substantial (S&S)
Safety defects; examination, correction and records.
Sandusky Quarry · 330015130 CFR 56.14100(c) · Significant and substantial (S&S)
Dust control.
Sandusky Quarry · 330015130 CFR 56.9315
Flying or falling materials.
Sandusky Quarry · 330015130 CFR 56.14110 · Significant and substantial (S&S)
Flying or falling materials.
Sandusky Quarry · 330015130 CFR 56.14110 · Significant and substantial (S&S)
Flying or falling materials.
Sandusky Quarry · 330015130 CFR 56.14110 · Significant and substantial (S&S)
Electrical conductors.
Sandusky Quarry · 330015130 CFR 56.12004 · Significant and substantial (S&S) · $642.00 proposed penalty
Flying or falling materials.
Sandusky Quarry · 330015130 CFR 56.14110
Inspection.
Wagner Quarries · 330017530 CFR 56.4201(a)(2) · $151.00 proposed penalty
Housekeeping.
Wagner Quarries · 330017530 CFR 56.20003(a) · Significant and substantial (S&S) · $1,431.00 proposed penalty
Access to stationary electrical equipment or switchgear.
Wagner Quarries · 330017530 CFR 56.12019 · $151.00 proposed penalty
Splices and repairs of power cables.
Sandusky Quarry · 330015130 CFR 56.12013(a) · Significant and substantial (S&S)
Housekeeping.
Sandusky Quarry · 330015130 CFR 56.20003(a) · Significant and substantial (S&S) · $642.00 proposed penalty
Housekeeping.
Sandusky Quarry · 330015130 CFR 56.20003(a) · Significant and substantial (S&S)
Insulation and fittings for power wires and cables.
Sandusky Quarry · 330015130 CFR 56.12008
Combustible waste.
Federal Underground · 110281430 CFR 57.4104(b)(2) · $151.00 proposed penalty
Electrical conductors.
MT. VERNON MINE & MILL · 150005130 CFR 57.12004 · $151.00 proposed penalty
Inspection and cover plates.
MT. VERNON MINE & MILL · 150005130 CFR 57.12032 · $151.00 proposed penalty
Dust control.
Sandusky Quarry · 330015130 CFR 56.9315
Housekeeping.
Sandusky Quarry · 330015130 CFR 56.20003(a) · Significant and substantial (S&S)
Brakes.
Sandusky Quarry · 330015130 CFR 56.14101(a)(3)
Closure of valves.
Sandusky Quarry · 330015130 CFR 56.4603(b) · $151.00 proposed penalty
Brakes.
Sandusky Quarry · 330015130 CFR 56.14101(a)(2) · $151.00 proposed penalty
Requirement for container labels.
Sandusky Quarry · 330015130 CFR 47.41(a) · $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.