Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Crawford Mine & Mill · 410099112.0 on-site hours reported
Testing grounding systems.
Olathe Quarry · 140170430 CFR 56.12028 · $151.00 proposed penalty
Electrical conductors.
Olathe Quarry · 140170430 CFR 56.12004 · $151.00 proposed penalty
Berms or guardrails.
Apex Quarry and Plant · 260008130 CFR 56.9300(a) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Apex Quarry and Plant · 260008130 CFR 56.14100(b) · $165.00 proposed penalty
Inspection.
CENTRAL ROCK QUARRY · 310005030 CFR 56.4201(a)(2) · $151.00 proposed penalty
Inspection.
CENTRAL ROCK QUARRY · 310005030 CFR 56.4201(a)(2) · $151.00 proposed penalty
Safe access.
Crawford Mine & Mill · 410099130 CFR 56.11001 · $151.00 proposed penalty
Records of training.
Red Oak Quarry · 090006930 CFR 46.9(c)(3) · $151.00 proposed penalty
Correction of dangerous conditions.
Red Oak Quarry · 090006930 CFR 56.12030 · $193.00 proposed penalty
Regular Safety and Health Inspection
Ferguson Quarry · 13001245.5 on-site hours reported
Safety defects; examination, correction and records.
Weeping Water Mine · 250099830 CFR 57.14100(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Clarkdale Plant #24 · 02025248.0 on-site hours reported
Regular Safety and Health Inspection
Red Oak Quarry · 090006916.3 on-site hours reported
Regular Safety and Health Inspection
DSM Portable Sand · 13025045.5 on-site hours reported
Horns and backup alarms.
DSM Portable Sand · 130250430 CFR 56.14132(a) · $245.00 proposed penalty
Surface electric substations and liquid storage facilities.
Weeping Water Mine · 250099830 CFR 57.4130(b) · $245.00 proposed penalty
Unattended mine openings.
Weeping Water Mine · 250099830 CFR 57.20020 · $245.00 proposed penalty
Roof Control Technical Investigation
BURNING SPRINGS MINE · 46088627.5 on-site hours reported
Regular Safety and Health Inspection
Appling Quarry · 09010836.3 on-site hours reported
Compliance Follow-up Inspection
Marble Falls Plant · 41031900.0 on-site hours reported
Moving machine parts.
Appling Quarry · 090108330 CFR 56.14107(a) · $151.00 proposed penalty
Berms or guardrails.
Fort Calhoun Underground Mine · 250130030 CFR 57.9300(b) · $151.00 proposed penalty
Two-way communication equipment for underground operations.
Fort Calhoun Underground Mine · 250130030 CFR 57.20032 · $151.00 proposed penalty
Temporary, portable containers.
Fort Calhoun Underground Mine · 250130030 CFR 47.44(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.