Summit Materials LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Electrical conductors.
Wegenhoft Plant · 410291630 CFR 56.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
Wegenhoft Plant · 41029167.8 on-site hours reported
Moving machine parts.
MONA PIT · 420221230 CFR 56.14107(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
MONA PIT · 42022128.5 on-site hours reported
Safety defects; examination, correction and records.
MONA PIT · 420221230 CFR 56.14100(c)
Inspection and cover plates.
MONA PIT · 420221230 CFR 56.12032 · $151.00 proposed penalty
Moving machine parts.
MONA PIT · 420221230 CFR 56.14107 · Significant and substantial (S&S) · $366.00 proposed penalty
Regular Safety and Health Inspection
Maryland Creek · 05038006.0 on-site hours reported
Regular Safety and Health Inspection
Hyrum Pit · 42023607.5 on-site hours reported
Protection of power conductors from mobile equipment.
Hyrum Pit · 420236030 CFR 56.12005 · $151.00 proposed penalty
Inspection and cover plates.
Hyrum Pit · 420236030 CFR 56.12032 · $151.00 proposed penalty
Electrical conductors.
Hyrum Pit · 420236030 CFR 56.12004 · $165.00 proposed penalty
Construction and maintenance of guards.
Hyrum Pit · 420236030 CFR 56.14112(b) · $165.00 proposed penalty
Compliance Follow-up Inspection
Parley's Stone · 42021020.5 on-site hours reported
Conveyor start-up warnings.
Crusher LU300-LU400 · 410257730 CFR 56.14201(b) · Significant and substantial (S&S) · $336.00 proposed penalty
Regular Safety and Health Inspection
Benjamin · 42025286.0 on-site hours reported
Verbal Hazard Complaint Inspections
Grantsville Pit · 42026372.8 on-site hours reported
Horns and backup alarms.
Benjamin · 420252830 CFR 56.14132(a) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Benjamin · 420252830 CFR 56.14100(c) · $151.00 proposed penalty
Moving machine parts.
Benjamin · 420252830 CFR 56.14107(a) · $151.00 proposed penalty
Drill dust control.
Benjamin · 420252830 CFR 58.620 · Significant and substantial (S&S) · $313.00 proposed penalty
Safety defects; examination, correction and records.
Benjamin · 420252830 CFR 56.14100(a) · $151.00 proposed penalty
Brakes.
Grantsville Pit · 420263730 CFR 56.14101(a)(2) · Significant and substantial (S&S) · $4,749.00 proposed penalty
Powered haulage
Crusher LU300-LU400 · 4102577Days away from work only
Accident narrative
While two employees were working around a tail pulley of a conveyor belt, there was miscommunication between the guys on the ground and the plant operator. This resulted in the belt turning on and grabbing one of the employee's sleeves, pulling them into the tail pulley.
Non-Fatal Accident Investigation
Crusher LU300-LU400 · 410257713.8 on-site hours reported
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.