Summit Materials LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Crusher 3 · 050459314.0 on-site hours reported
Safe access.
Maryland Creek · 050380030 CFR 56.11001 · Significant and substantial (S&S) · $3,022.00 proposed penalty
Safe access.
Maryland Creek · 050380030 CFR 56.11001 · Significant and substantial (S&S) · $366.00 proposed penalty
Protection for openings around travelways.
Maryland Creek · 050380030 CFR 56.11012 · Significant and substantial (S&S) · $549.00 proposed penalty
Protection for openings around travelways.
Maryland Creek · 050380030 CFR 56.11012 · Significant and substantial (S&S) · $1,219.00 proposed penalty
Handrails and toeboards.
Maryland Creek · 050380030 CFR 56.11002 · $151.00 proposed penalty
Handrails and toeboards.
Maryland Creek · 050380030 CFR 56.11002 · $151.00 proposed penalty
Electrical conductors.
Duncan Plant · 410518730 CFR 56.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
Duncan Plant · 41051876.3 on-site hours reported
Combustible waste.
Vox Plant · 410508130 CFR 56.4104(b) · $151.00 proposed penalty
Requirement for container labels.
Vox Plant · 410508130 CFR 47.41(a) · $151.00 proposed penalty
Correction of dangerous conditions.
Duncan Plant · 410518730 CFR 56.12030 · Significant and substantial (S&S) · $959.00 proposed penalty
Grounding circuit enclosures.
Duncan Plant · 410518730 CFR 56.12025 · Significant and substantial (S&S) · $959.00 proposed penalty
Handrails and toeboards.
Duncan Plant · 410518730 CFR 56.11002 · Significant and substantial (S&S) · $959.00 proposed penalty
Regular Safety and Health Inspection
Coleman Quarry-SCS Materials · 34022404.0 on-site hours reported
Regular Safety and Health Inspection
Vox Plant · 41050818.8 on-site hours reported
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Coleman Quarry-SCS Materials · 340224030 CFR 50.30(a) · $151.00 proposed penalty
Guarding electrical connections and resistor grids.
Coleman Quarry-SCS Materials · 340224030 CFR 56.12023 · $151.00 proposed penalty
Construction and maintenance of guards.
Coleman Quarry-SCS Materials · 340224030 CFR 56.14112(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Wichita Sand and Gravel · 14005437.0 on-site hours reported
Parking procedures for unattended equipment.
Wichita Sand and Gravel · 140054330 CFR 56.14207 · $165.00 proposed penalty
Securing movable parts.
Wichita Sand and Gravel · 140054330 CFR 56.14206(b) · $151.00 proposed penalty
Moving machine parts.
Wichita Sand and Gravel · 140054330 CFR 56.14107(a) · $245.00 proposed penalty
Electrical conductors.
Wichita Sand and Gravel · 140054330 CFR 56.12004 · $165.00 proposed penalty
Parking procedures for unattended equipment.
Wichita Sand and Gravel · 140054330 CFR 56.14207 · $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.