Summit Materials LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Violation — cited standard not reported
Crusher LU300-LU400 · 4102577Electrical conductors.
Crusher LU300-LU400 · 410257730 CFR 56.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
Crusher LU300-LU400 · 41025778.8 on-site hours reported
Compliance Follow-up Inspection
Hays Quarry · 41045140.8 on-site hours reported
Regular Safety and Health Inspection
Bluffdale Pit · 42021797.0 on-site hours reported
Moving machine parts.
Bluffdale Pit · 420217930 CFR 56.14107(a) · $1,320.00 proposed penalty
Horns and backup alarms.
Bluffdale Pit · 420217930 CFR 56.14132(b)(2) · $151.00 proposed penalty
Electrical conductors.
Bluffdale Pit · 420217930 CFR 56.12004 · $1,320.00 proposed penalty
Electrical conductors.
Bluffdale Pit · 420217930 CFR 56.12004 · $1,320.00 proposed penalty
Moving machine parts.
Bluffdale Pit · 420217930 CFR 56.14107(a) · $1,320.00 proposed penalty
Handtools (nonpowered)
Duncan Plant · 4105187Days away from work only
Accident narrative
Employee was assisting with repairs to the dredge using a cutting tool and torch to remove a bolt. Bolt head was struck with sledgehammer causing bolt to shear and fragment penetrating employee in lower abdomen. Employee was taken to ER and transferred to another hospital where employee is currently having emergency surgery
Regular Safety and Health Inspection
Hockley Plant · 41034914.5 on-site hours reported
Berms or guardrails.
Hockley Plant · 410349130 CFR 56.9300(b) · $151.00 proposed penalty
Electrical conductors.
Hays Quarry · 410451430 CFR 56.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
Hays Quarry · 410451412.5 on-site hours reported
Compliance Follow-up Inspection
Pit #1 43rd Ave · 02028671.0 on-site hours reported
Regular Safety and Health Inspection
Parley's Stone · 42021026.0 on-site hours reported
Correction of hazardous conditions.
Portable Plant #6 · 140182830 CFR 56.3200 · Significant and substantial (S&S) · $755.00 proposed penalty
Insulation and fittings for power wires and cables.
Parley's Stone · 420210230 CFR 56.12008 · $504.00 proposed penalty
Construction and maintenance of guards.
Parley's Stone · 420210230 CFR 56.14112(a)(1) · $504.00 proposed penalty
Moving machine parts.
Parley's Stone · 420210230 CFR 56.14107(a) · Significant and substantial (S&S) · $5,574.00 proposed penalty
Construction and maintenance of guards.
Parley's Stone · 420210230 CFR 56.14112(a)(1) · $504.00 proposed penalty
Regular Safety and Health Inspection
Portable Plant #6 · 140182818.5 on-site hours reported
Regular Safety and Health Inspection
Grantsville Pit · 42026378.0 on-site hours reported
Inspection.
Grantsville Pit · 420263730 CFR 56.4201(a)(2) · $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.