Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Impoundment Spot Inspection
RED HILL QUARRY · 44000721.0 on-site hours reported
Identification of power switches.
Jones Mill Quarry · 030158630 CFR 56.12018 · $151.00 proposed penalty
Housekeeping.
Jones Mill Quarry · 030158630 CFR 56.20003(b) · Significant and substantial (S&S) · $366.00 proposed penalty
Suspended loads.
Junction City Quarry · 090102930 CFR 56.16009 · Significant and substantial (S&S) · $1,219.00 proposed penalty
Identification of power switches.
BAKERS QUARRY · 310007130 CFR 56.12018 · $151.00 proposed penalty
Horns and backup alarms.
Greensboro Portable Plant 1 · 310233630 CFR 56.14132(b)(2) · $151.00 proposed penalty
Regular Safety and Health Inspection
Jones Mill Quarry · 030158622.0 on-site hours reported
Impoundment Spot Inspection
Spec Agg Quarry · 05008602.3 on-site hours reported
Regular Safety and Health Inspection
Junction City Quarry · 090102916.5 on-site hours reported
Regular Safety and Health Inspection
BAKERS QUARRY · 310007123.0 on-site hours reported
Regular Safety and Health Inspection
Mallard Creek Quarry · 310200618.8 on-site hours reported
Regular Safety and Health Inspection
Greensboro Portable Plant 1 · 310233612.0 on-site hours reported
Berms or guardrails.
Spec Agg Quarry · 050086030 CFR 56.9300(d)(1) · $366.00 proposed penalty
Inspection and cover plates.
Alden Quarry and Shop · 130022830 CFR 56.12032 · $151.00 proposed penalty
Compliance Follow-up Inspection
Greensboro Portable Plant 1 · 31023360.0 on-site hours reported
Machinery
Rock Hill Quarry · 3800026No dys awy frm wrk,no rstr act
Accident narrative
Loosening a bolt with with an impact wrench and socket wrench. Hand slipped off wrench and was struck in face.
Regular Safety and Health Inspection
PLANT #854 · 13021266.5 on-site hours reported
Regular Safety and Health Inspection
Saylorville Sand · 13022904.0 on-site hours reported
Regular Safety and Health Inspection
Fast Pack 2 Portable 2 · 23024039.0 on-site hours reported
Guarding around lights.
NATIVIDAD PLANT · 040015630 CFR 56.12034 · $151.00 proposed penalty
Regular Safety and Health Inspection
Alden Quarry and Shop · 130022823.3 on-site hours reported
Regular Safety and Health Inspection
CENTRAL ROCK QUARRY · 310005030.5 on-site hours reported
Construction and maintenance of guards.
NATIVIDAD PLANT · 040015630 CFR 56.14112(b) · $151.00 proposed penalty
Illumination of surface working areas.
NATIVIDAD PLANT · 040015630 CFR 56.17001 · $151.00 proposed penalty
Identification of power switches.
Alden Quarry and Shop · 130022830 CFR 56.12018 · $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.