Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
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
Horns and backup alarms.
Forks of the River Quarry · 400161030 CFR 56.14132(b)(2) · $818.00 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
Examination of working places.
North Indianapolis Quarry & Mill · 120000230 CFR 56.18002 · Significant and substantial (S&S) · $3,448.00 proposed penalty
Inspection and cover plates.
North Indianapolis Quarry & Mill · 120000230 CFR 56.12032 · Significant and substantial (S&S) · $3,448.00 proposed penalty
Testing grounding systems.
North Indianapolis Quarry & Mill · 120000230 CFR 56.12028 · $209.00 proposed penalty
Regular Safety and Health Inspection
Ferguson Quarry · 13001245.5 on-site hours reported
Regular Safety and Health Inspection
211 QUARRY · 41038293.3 on-site hours reported
Examination of working places.
North Indianapolis Quarry & Mill · 120000230 CFR 56.18002(a) · $313.00 proposed penalty
Requirement for container labels.
North Indianapolis Quarry & Mill · 120000230 CFR 47.41(a)(1) · $151.00 proposed penalty
Flammable or combustible liquid storage buildings or rooms.
North Indianapolis Quarry & Mill · 120000230 CFR 56.4531(b)(2) · $151.00 proposed penalty
Access to stationary electrical equipment or switchgear.
North Indianapolis Quarry & Mill · 120000230 CFR 56.12019 · $151.00 proposed penalty
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
Regular Safety and Health Inspection
Monterey Sand · 400079814.5 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
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.