Summit Materials LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
103 (g) Written Notification Hazard Complaint Inspectio
Sawyer Quarry · 34019503.3 on-site hours reported
Spot Inspection
Sawyer Quarry · 34019500.8 on-site hours reported
Regular Safety and Health Inspection
Crusher LU300-LU400 · 41025776.3 on-site hours reported
Safe access.
Sawyer Quarry · 340195030 CFR 56.11001 · $151.00 proposed penalty
Housekeeping.
Sawyer Quarry · 340195030 CFR 56.20003(a) · $151.00 proposed penalty
Safety defects; examination, correction and records.
SEVERY QUARRY · 140158430 CFR 56.14100(b) · $165.00 proposed penalty
Electrical conductors.
SEVERY QUARRY · 140158430 CFR 56.12004 · $165.00 proposed penalty
Insulation and fittings for power wires and cables.
SEVERY QUARRY · 140158430 CFR 56.12008 · $165.00 proposed penalty
Regular Safety and Health Inspection
SEVERY QUARRY · 140158415.3 on-site hours reported
Spot Inspection
Grantsville Pit · 42026370.0 on-site hours reported
Notification of commencement of operations and closing of mines.
Grantsville Pit · 420263730 CFR 56.1000 · $151.00 proposed penalty
Berms or guardrails.
Grantsville Pit · 420263730 CFR 56.9300(a) · Significant and substantial (S&S) · $313.00 proposed penalty
Regular Safety and Health Inspection
Portable Plant #3 · 140146413.3 on-site hours reported
Regular Safety and Health Inspection
Wegenhoft Plant · 410291615.5 on-site hours reported
Safety defects; examination, correction and records.
Portable Plant #3 · 140146430 CFR 56.14100(c) · $151.00 proposed penalty
Circuit overload protection.
Portable Plant #3 · 140146430 CFR 56.12001 · $165.00 proposed penalty
Inspection and cover plates.
Portable Plant #3 · 140146430 CFR 56.12032 · $165.00 proposed penalty
Moving machine parts.
Wegenhoft Plant · 410291630 CFR 56.14107(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Herriman Pit · 42018236.0 on-site hours reported
Regular Safety and Health Inspection
Atoka Quarry · 34020267.5 on-site hours reported
Construction and maintenance of guards.
Atoka Quarry · 340202630 CFR 56.14112(a)(1) · $151.00 proposed penalty
Annual refresher training.
Coleman Quarry-SCS Materials · 340224030 CFR 46.8(a)(2) · $168.00 proposed penalty
Regular Safety and Health Inspection
Maryland Creek · 05038005.8 on-site hours reported
Regular Safety and Health Inspection
Coleman Quarry-SCS Materials · 34022407.5 on-site hours reported
Berms or guardrails.
Maryland Creek · 050380030 CFR 56.9300(b) · Significant and substantial (S&S) · $245.00 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.