Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Housekeeping.
Sunol Aggregates · 040185930 CFR 56.20003(a) · $549.00 proposed penalty
Inspection and cover plates.
Sunol Aggregates · 040185930 CFR 56.12032 · $1,818.00 proposed penalty
Records of training.
Riverbend Sand and Gravel · 050484130 CFR 46.9(d)(3) · $151.00 proposed penalty
Berms or guardrails.
Noblesville Stone · 120217630 CFR 57.9300(a) · Significant and substantial (S&S) · $1,219.00 proposed penalty
Safe access.
Noblesville Stone · 120217630 CFR 57.11001 · Significant and substantial (S&S) · $818.00 proposed penalty
Ground support use.
Noblesville Stone · 120217630 CFR 57.3360 · Significant and substantial (S&S) · $2,712.00 proposed penalty
Horns and backup alarms for surface equipment.
Malcom Mine · 130011230 CFR 57.14132(b)(2) · $193.00 proposed penalty
Regular Safety and Health Inspection
Tyrone Quarry · 090030611.3 on-site hours reported
Unguarded conveyors with adjacent travelways.
Tyrone Quarry · 090030630 CFR 56.14109(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Columbia West Quarry · 23000228.0 on-site hours reported
Air receiver tanks.
Columbia West Quarry · 230002230 CFR 56.13011 · $151.00 proposed penalty
Unstable ground.
Columbia West Quarry · 230002230 CFR 56.9304(a) · $193.00 proposed penalty
Regular Safety and Health Inspection
Red Oak Quarry · 090006916.3 on-site hours reported
Regular Safety and Health Inspection
Linn County Sand · 13022084.5 on-site hours reported
Regular Safety and Health Inspection
FREDERICK QUARRY · 18000138.0 on-site hours reported
Regular Safety and Health Inspection
Weeping Water Mine · 250099845.0 on-site hours reported
Inspection of compressed-air receivers and other unfired pressure vessels.
Black Rock Quarry & Plant · 030001130 CFR 56.13015(b) · $151.00 proposed penalty
Escape routes.
North Indianapolis Underground Quarry · 120199330 CFR 57.11051(a) · Significant and substantial (S&S) · $5,144.00 proposed penalty
Ground support use.
North Indianapolis Underground Quarry · 120199330 CFR 57.3360 · $151.00 proposed penalty
Testing grounding systems.
AMES MINE · 130001430 CFR 57.12028 · $151.00 proposed penalty
Requirement for container labels.
AMES MINE · 130001430 CFR 47.41(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
YAVAPAI PLANT 22 · 02012227.0 on-site hours reported
Regular Safety and Health Inspection
Six Mile Quarry · 09011445.8 on-site hours reported
Regular Safety and Health Inspection
North Indianapolis Underground Quarry · 120199321.8 on-site hours reported
Regular Safety and Health Inspection
Grantville Quarry · 14014726.0 on-site hours reported
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.