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
San Pedro Quarry · 41013378.0 on-site hours reported
Identification of power switches.
San Pedro Quarry · 410133730 CFR 56.12018 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Mill Creek Limestone Quarry · 340185930 CFR 56.14100(b) · $151.00 proposed penalty
Availability of an MSDS.
Mill Creek Limestone Quarry · 340185930 CFR 47.54 · $151.00 proposed penalty
Barricades and warning signs.
Mill Creek Limestone Quarry · 340185930 CFR 56.20011 · $151.00 proposed penalty
Regular Safety and Health Inspection
Mill Creek Limestone Quarry · 340185922.0 on-site hours reported
Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.
North Austin Quarry · 410438030 CFR 50.20(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
North Austin Quarry · 41043809.0 on-site hours reported
Securing gas cylinders.
Martin Marietta Slaton Plant · 410111130 CFR 56.16005 · $151.00 proposed penalty
Air receiver tanks.
Martin Marietta Slaton Plant · 410111130 CFR 56.13011 · $151.00 proposed penalty
Moving machine parts.
North Austin Quarry · 410438030 CFR 56.14107(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Martin Marietta Slaton Plant · 410111118.3 on-site hours reported
Controls and switches.
Martin Marietta Slaton Plant · 410111130 CFR 56.12002 · $165.00 proposed penalty
Parking procedures for unattended equipment.
Martin Marietta Slaton Plant · 410111130 CFR 56.14207 · $151.00 proposed penalty
Electrical conductors.
Martin Marietta Slaton Plant · 410111130 CFR 56.12004 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Martin Marietta Slaton Plant · 410111130 CFR 56.14100(b) · $151.00 proposed penalty
Closure of valves.
Martin Marietta Slaton Plant · 410111130 CFR 56.4603(b) · $151.00 proposed penalty
Construction and maintenance of guards.
Martin Marietta Slaton Plant · 410111130 CFR 56.14112(a) · $151.00 proposed penalty
Protection for openings around travelways.
Martin Marietta Slaton Plant · 410111130 CFR 56.11012 · $151.00 proposed penalty
Regular Safety and Health Inspection
Portable Crusher #2 · 41042044.0 on-site hours reported
Regular Safety and Health Inspection
Smithson Valley Quarry · 41041083.0 on-site hours reported
Electrical conductors.
Smithson Valley Quarry · 410410830 CFR 56.12004 · $151.00 proposed penalty
Examination of working places.
Bells/Savoy Aggregate Operations · 410401930 CFR 56.18002(b) · $226.00 proposed penalty
Construction and maintenance of guards.
Bells/Savoy Aggregate Operations · 410401930 CFR 56.14112(b) · $151.00 proposed penalty
Electrical conductors.
Bells/Savoy Aggregate Operations · 410401930 CFR 56.12004 · $226.00 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.