Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Construction and maintenance of guards.
Maitri Sand and Gravel · 040415730 CFR 56.14112(b) · $151.00 proposed penalty
Examination of working places.
Maitri Sand and Gravel · 040415730 CFR 56.18002(b) · $151.00 proposed penalty
Machinery, equipment, and tools.
Granite Canyon Quarry · 480001830 CFR 56.14205 · $245.00 proposed penalty
Regular Safety and Health Inspection
Sunol Aggregates · 040185916.5 on-site hours reported
Regular Safety and Health Inspection
Maitri Sand and Gravel · 040415710.5 on-site hours reported
Regular Safety and Health Inspection
Noblesville Sand & Gravel · 120199410.5 on-site hours reported
Regular Safety and Health Inspection
Grantville Quarry · 14014726.0 on-site hours reported
Regular Safety and Health Inspection
MN Portable #3 · 21031473.3 on-site hours reported
Regular Safety and Health Inspection
Broken Bow Sand & Gravel · 34004609.5 on-site hours reported
Regular Safety and Health Inspection
Loamy Sand and Gravel · 38007217.0 on-site hours reported
Regular Safety and Health Inspection
Salem Sand · 38007580.5 on-site hours reported
Impoundment Spot Inspection
Martin Marietta Merkel Plant · 41038481.0 on-site hours reported
Electrical conductors.
Sunol Aggregates · 040185930 CFR 56.12004 · $818.00 proposed penalty
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Sully Mine · 130006330 CFR 50.30(a) · $151.00 proposed penalty
Examination of working places.
Sully Mine · 130006330 CFR 57.18002(d) · $151.00 proposed penalty
Testing grounding systems.
Sunflower Quarry · 140155630 CFR 56.12028 · $151.00 proposed penalty
Inspection.
Broken Bow Sand & Gravel · 340046030 CFR 56.4201(a)(1) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Mill Creek · 340128530 CFR 56.14100(b) · $151.00 proposed penalty
Locking transformer enclosures.
Forks of the River Quarry · 400161030 CFR 56.12068 · $226.00 proposed penalty
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
Sully Mine · 130006326.5 on-site hours reported
Regular Safety and Health Inspection
Sunflower Quarry · 140155613.8 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.