Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
North Columbia Quarry · 380014622.5 on-site hours reported
Regular Safety and Health Inspection
Calhoun Sand · 38007166.5 on-site hours reported
Horns and backup alarms.
North Columbia Quarry · 380014630 CFR 56.14132(a) · $151.00 proposed penalty
Securing movable parts.
Calhoun Sand · 380071630 CFR 56.14206(b) · $504.00 proposed penalty
Inspection.
Medina Rock & Rail · 410517030 CFR 56.4201(a)(1) · $151.00 proposed penalty
Controls and switches.
Medina Rock & Rail · 410517030 CFR 56.12002 · $151.00 proposed penalty
Regular Safety and Health Inspection
Greenback Quarry · 400248812.5 on-site hours reported
Regular Safety and Health Inspection
Medina Rock & Rail · 410517028.5 on-site hours reported
Fire
CAYCE QUARRY · 3800016Accident only
Accident narrative
Arsonist suspected of setting fire that expanded onto quarry property. 911 called. Fire was confirmed to be on quarry property and 800 number was called. Local responding agencies contained and extinguished the fire. They confirmed they were seeking an arson suspect.
Regular Safety and Health Inspection
Warrenton Quarry · 090058014.3 on-site hours reported
Regular Safety and Health Inspection
North Valley Sand · 25012715.0 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
ARROWOOD · 31000593.5 on-site hours reported
Regular Safety and Health Inspection
New Miami Plant · 33043838.0 on-site hours reported
Housekeeping.
Warrenton Quarry · 090058030 CFR 56.20003(a) · Significant and substantial (S&S) · $336.00 proposed penalty
Testing grounding systems.
DSM Portable Sand · 130250430 CFR 56.12028 · $151.00 proposed penalty
First-aid materials.
North Valley Sand · 250127130 CFR 56.15001 · $151.00 proposed penalty
Regular Safety and Health Inspection
DOUGLAS PLANT · 02000222.0 on-site hours reported
Regular Safety and Health Inspection
Irwindale Aggregates · 040183813.0 on-site hours reported
Regular Safety and Health Inspection
Junction City Quarry · 090102912.5 on-site hours reported
Regular Safety and Health Inspection
Belmont Sand & Gravel · 12019116.5 on-site hours reported
Regular Safety and Health Inspection
DSM Portable Sand · 13025047.8 on-site hours reported
Regular Safety and Health Inspection
Snyder · 340165112.8 on-site hours reported
Securing gas cylinders.
Irwindale Aggregates · 040183830 CFR 56.16005 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Junction City Quarry · 090102930 CFR 56.14100(b) · $151.00 proposed penalty
Insulation and fittings for power wires and cables.
Belmont Sand & Gravel · 120191130 CFR 56.12008 · $193.00 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.