Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Moving machine parts.
O'Neal Quarry & Mill · 010000330 CFR 56.14107(a) · $313.00 proposed penalty
Fire
Martin Marietta - Woodville Lime & Stone · 3300156Accident only
Accident narrative
Stored coal spontaneous combustion resulting in a fire within the silo. No injuries were sustained. The fire was extinguished within an hour of discovery.
Regular Safety and Health Inspection
Spec Agg Quarry · 050086018.3 on-site hours reported
Regular Safety and Health Inspection
HOMER QUARRY · 09009585.3 on-site hours reported
Regular Safety and Health Inspection
Plant #65 · 23019228.0 on-site hours reported
Regular Safety and Health Inspection
Sawyer East Quarry · 34018094.0 on-site hours reported
Grounding circuit enclosures.
Spec Agg Quarry · 050086030 CFR 56.12025 · $151.00 proposed penalty
Inspection and cover plates.
Plant #65 · 230192230 CFR 56.12032 · $151.00 proposed penalty
Construction and maintenance of guards.
Plant #65 · 230192230 CFR 56.14112(b) · $151.00 proposed penalty
Loading, blasting, and security.
Anderson Mine and Mill · 400002230 CFR 57.6306(g) · Significant and substantial (S&S) · $3,736.00 proposed penalty
Handling of misfires.
Anderson Mine and Mill · 400002230 CFR 57.6311(b) · Significant and substantial (S&S) · $3,736.00 proposed penalty
Regular Safety and Health Inspection
Platte Sand and Gravel · 05044185.0 on-site hours reported
Regular Safety and Health Inspection
Guernsey Quarry · 480000412.0 on-site hours reported
Access to stationary electrical equipment or switchgear.
BUILDEX · 230031930 CFR 56.12019 · $151.00 proposed penalty
Securing movable parts.
Fort Calhoun Underground Mine · 250130030 CFR 57.14206(b) · $697.00 proposed penalty
Housekeeping.
Guernsey Quarry · 480000430 CFR 56.20003(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Santee Aggregates · 04055649.3 on-site hours reported
Regular Safety and Health Inspection
AUBURN QUARRY · 09004367.0 on-site hours reported
Regular Safety and Health Inspection
BUILDEX · 230031913.0 on-site hours reported
Regular Safety and Health Inspection
Stamper Underground · 23022324.0 on-site hours reported
Compliance Follow-up Inspection
Weeping Water Mine · 25009980.0 on-site hours reported
Verbal Hazard Complaint Inspections
Anderson Mine and Mill · 400002217.3 on-site hours reported
Housekeeping.
Santee Aggregates · 040556430 CFR 56.20003(a) · Significant and substantial (S&S) · $151.00 proposed penalty
Construction and maintenance of guards.
Santee Aggregates · 040556430 CFR 56.14112(a)(1) · $151.00 proposed penalty
Horns and backup alarms.
Santee Aggregates · 040556430 CFR 56.14132(b) · $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.