Martin Marietta Materials Southwest LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Rio Medina · 410359410.3 on-site hours reported
Compliance Follow-up Inspection
Martin Marietta Merkel Plant · 41038480.5 on-site hours reported
Identification of power switches.
Rio Medina · 410359430 CFR 56.12018 · $151.00 proposed penalty
Inspection and cover plates.
Rio Medina · 410359430 CFR 56.12032 · $151.00 proposed penalty
Examination of working places.
Beckmann Quarry · 410133530 CFR 56.18002(b) · $151.00 proposed penalty
Records of training.
TIN TOP SAND AND GRAVEL PLANT · 410285230 CFR 46.9 · $151.00 proposed penalty
Regular Safety and Health Inspection
Beckmann Quarry · 410133512.8 on-site hours reported
Regular Safety and Health Inspection
TIN TOP SAND AND GRAVEL PLANT · 410285210.5 on-site hours reported
Use of ladders.
Beckmann Quarry · 410133530 CFR 56.11011 · $151.00 proposed penalty
Electrical conductors.
Beckmann Quarry · 410133530 CFR 56.12004 · $151.00 proposed penalty
Impoundment Spot Inspection
Martin Marietta Merkel Plant · 41038481.0 on-site hours reported
Extinguisher recharging or replacement.
Martin Marietta Merkel Plant · 410384830 CFR 56.4203 · $151.00 proposed penalty
Inspection.
Martin Marietta Merkel Plant · 410384830 CFR 56.4201 · $151.00 proposed penalty
Identification of power switches.
Martin Marietta Merkel Plant · 410384830 CFR 56.12018 · $165.00 proposed penalty
Housekeeping.
Martin Marietta Merkel Plant · 410384830 CFR 56.20003(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Martin Marietta Merkel Plant · 41038489.5 on-site hours reported
Regular Safety and Health Inspection
Webberville S&G · 410436315.0 on-site hours reported
Parking procedures for unattended equipment.
Martin Marietta Merkel Plant · 410384830 CFR 56.14207 · $151.00 proposed penalty
Electrical conductors.
Webberville S&G · 410436330 CFR 56.12004 · $245.00 proposed penalty
Insulation and fittings for power wires and cables.
Webberville S&G · 410436330 CFR 56.12008 · $245.00 proposed penalty
Regular Safety and Health Inspection
Garfield Sand & Gravel · 41039094.3 on-site hours reported
Testing grounding systems.
Garfield Sand & Gravel · 410390930 CFR 56.12028 · $151.00 proposed penalty
Regular Safety and Health Inspection
Bridgeport Stone Plant · 410000726.0 on-site hours reported
Safe access.
Bridgeport Stone Plant · 410000730 CFR 56.11001 · $151.00 proposed penalty
Powered haulage
Martin Marietta Merkel Plant · 4103848Days away from work only
Accident narrative
Loader operator was jolted in loader and suffered head injury.
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.