Summit Materials LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Inspection.
Grantsville Pit · 420263730 CFR 56.4201(a)(2) · $288.00 proposed penalty
Construction and maintenance of ladders.
Grantsville Pit · 420263730 CFR 56.11003 · Significant and substantial (S&S) · $1,431.00 proposed penalty
Regular Safety and Health Inspection
Portable Plant #2 · 14014636.0 on-site hours reported
Regular Safety and Health Inspection
Atoka Quarry · 34020266.3 on-site hours reported
Parking procedures for unattended equipment.
Atoka Quarry · 340202630 CFR 56.14207 · $151.00 proposed penalty
Regular Safety and Health Inspection
HIGHLAND PIT · 420094113.0 on-site hours reported
Moving machine parts.
HIGHLAND PIT · 420094130 CFR 56.14107(a) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Electrical conductors.
HIGHLAND PIT · 420094130 CFR 56.12004 · $1,219.00 proposed penalty
Housekeeping.
HIGHLAND PIT · 420094130 CFR 56.20003(a) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Inspection and cover plates.
HIGHLAND PIT · 420094130 CFR 56.12032 · $549.00 proposed penalty
Moving machine parts.
HIGHLAND PIT · 420094130 CFR 56.14107(a) · $1,219.00 proposed penalty
Moving machine parts.
HIGHLAND PIT · 420094130 CFR 56.14107(a) · $1,219.00 proposed penalty
Compliance Follow-up Inspection
Pit #1 43rd Ave · 02028670.8 on-site hours reported
Regular Safety and Health Inspection
Herriman Pit · 420182312.5 on-site hours reported
Exposure limits for airborne contaminants.
Sawyer Quarry · 340195030 CFR 56.5001(a)/56.5005 · Significant and substantial (S&S) · $465.00 proposed penalty
Securing movable parts.
Herriman Pit · 420182330 CFR 56.14206(b) · $151.00 proposed penalty
Moving machine parts.
Herriman Pit · 420182330 CFR 56.14107(a) · Significant and substantial (S&S) · $642.00 proposed penalty
Slip or fall of person
Stockton Pit · 4202480Days restricted activity only
Accident narrative
The employee was walking around EE's service truck walking on uneven surface throwing away trash, flashing, and old bearing housing that were in the back of the service truck, when the employee felt a pop in EE's left knee.
Compliance Follow-up Inspection
Pit #1 43rd Ave · 02028670.5 on-site hours reported
Verbal Hazard Complaint Inspections
Grantsville Pit · 42026372.5 on-site hours reported
Spot Inspection
Grantsville Pit · 42026370.0 on-site hours reported
Inspection.
Grantsville Pit · 420263730 CFR 56.4201(a)(2) · $151.00 proposed penalty
Inspection.
Grantsville Pit · 420263730 CFR 56.4201(a)(2) · $151.00 proposed penalty
Handtools (nonpowered)
Duncan Plant · 4105187No dys awy frm wrk,no rstr act
Accident narrative
Employees were working on replacing some pipe on the dredge and while using a pry bar to pry a gasket off, the bar slipped and hit the miner in the face causing a laceration right under the left eye which required a total of 12 stitches.
Compliance Follow-up Inspection
Pit #1 43rd Ave · 02028671.3 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.