Summit Materials LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Safety defects; examination, correction and records.
Portable Plant #2 · 140146330 CFR 56.14100(b) · $151.00 proposed penalty
Horns and backup alarms.
Coleman Quarry-SCS Materials · 340224030 CFR 56.14132(a) · $151.00 proposed penalty
Berms or guardrails.
Coleman Quarry-SCS Materials · 340224030 CFR 56.9300(a) · $151.00 proposed penalty
Smoking and use of open flames.
Coleman Quarry-SCS Materials · 340224030 CFR 56.4100(b) · Significant and substantial (S&S) · $193.00 proposed penalty
Regular Safety and Health Inspection
Portable Plant #2 · 14014634.5 on-site hours reported
Regular Safety and Health Inspection
Parley's Stone · 42021028.0 on-site hours reported
Insulation and fittings for power wires and cables.
Crusher 3 · 050459330 CFR 56.12008 · $151.00 proposed penalty
Regular Safety and Health Inspection
Crusher 3 · 05045936.3 on-site hours reported
Regular Safety and Health Inspection
Vines Sand & Gravel · 410334816.0 on-site hours reported
Locking transformer enclosures.
Vines Sand & Gravel · 410334830 CFR 56.12068 · $151.00 proposed penalty
Testing grounding systems.
Vines Sand & Gravel · 410334830 CFR 56.12028 · $151.00 proposed penalty
Regular Safety and Health Inspection
Hays Quarry · 410451410.0 on-site hours reported
Regular Safety and Health Inspection
Hyrum Pit · 42023607.5 on-site hours reported
Electrical conductors.
Hyrum Pit · 420236030 CFR 56.12004 · $177.00 proposed penalty
Requirement for container labels.
Hyrum Pit · 420236030 CFR 47.41(a) · $151.00 proposed penalty
Moving machine parts.
Hyrum Pit · 420236030 CFR 56.14107(a) · $177.00 proposed penalty
Construction and maintenance of guards.
Sawyer Quarry · 340195030 CFR 56.14112(a)(1) · $151.00 proposed penalty
Regular Safety and Health Inspection
Sawyer Quarry · 340195018.0 on-site hours reported
Regular Safety and Health Inspection
Hockley Plant · 410349117.0 on-site hours reported
Site-specific hazard awareness training.
Hockley Plant · 410349130 CFR 46.11(b) · $1,219.00 proposed penalty
Testing grounding systems.
Hockley Plant · 410349130 CFR 56.12028 · $549.00 proposed penalty
First-aid materials.
Hockley Plant · 410349130 CFR 56.15001 · $151.00 proposed penalty
Safe access.
Hockley Plant · 410349130 CFR 56.11001 · Significant and substantial (S&S) · $398.00 proposed penalty
Regular Safety and Health Inspection
Crusher LU300-LU400 · 41025775.3 on-site hours reported
Guarding electrical connections and resistor grids.
Crusher LU300-LU400 · 410257730 CFR 56.12023 · $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.