Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Compliance Follow-up Inspection
CLARKS QUARRY · 31020093.3 on-site hours reported
Regular Safety and Health Inspection
Onslow Quarry · 310212011.3 on-site hours reported
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
Safety defects; examination, correction and records.
Carmel Sand & Gravel · 120212430 CFR 56.14100(b) · $151.00 proposed penalty
Surface electric substations and liquid storage facilities.
AMES MINE · 130001430 CFR 57.4130(b) · $151.00 proposed penalty
Spillage and leakage.
AMES MINE · 130001430 CFR 57.4102 · $151.00 proposed penalty
Spillage and leakage.
AMES MINE · 130001430 CFR 57.4102 · $151.00 proposed penalty
Safety belts and lines.
North East Quarry · 180041730 CFR 56.15005 · Significant and substantial (S&S) · $313.00 proposed penalty
Storage of flammable liquids underground.
Fort Calhoun Underground Mine · 250130030 CFR 57.4460(a)(1) · $151.00 proposed penalty
Correction of dangerous conditions.
Davis Quarry · 340129930 CFR 56.12030 · Significant and substantial (S&S) · $592.00 proposed penalty
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
Securing gas cylinders.
Granite Canyon Quarry · 480001830 CFR 56.16005 · $245.00 proposed penalty
Regular Safety and Health Inspection
VANCE QUARRY · 01030220.0 on-site hours reported
Regular Safety and Health Inspection
Northern Portable Plant #12 · 050452614.5 on-site hours reported
Regular Safety and Health Inspection
Edgefield Quarry · 380073815.3 on-site hours reported
Moving machine parts.
VANCE QUARRY · 010302230 CFR 56.14107(a) · $151.00 proposed penalty
Requirement for container labels.
Black Rock Quarry & Plant · 030001130 CFR 47.41(a) · $151.00 proposed penalty
Requirements for written safety program.
AMES MINE · 130001430 CFR 57.23003(b) · $151.00 proposed penalty
Electrical conductors.
Durham Mine & Mill · 130122530 CFR 57.12004 · $151.00 proposed penalty
Securing gas cylinders.
North East Quarry · 180041730 CFR 56.16005 · $151.00 proposed penalty
Brakes.
Fort Calhoun Underground Mine · 250130030 CFR 57.14101(a)(2) · $151.00 proposed penalty
Safe access.
Matthews Quarry · 310208430 CFR 56.11001 · $755.00 proposed penalty
Examination of working places.
Beckmann Quarry · 410133530 CFR 56.18002(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.