Columbia Quarry Company LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Handling of materials
Columbia Plant #1 · 1100038Days away from work only
Accident narrative
sunny clear skies, clean work area, smashed tip of finger
Testing grounding systems.
Dupo Plant #9 · 110003930 CFR 56.12028 · $336.00 proposed penalty
Construction and maintenance of guards.
Dupo Plant #9 · 110003930 CFR 56.14112(b) · $177.00 proposed penalty
Inspection and cover plates.
Dupo Plant #9 · 110003930 CFR 56.12032 · $151.00 proposed penalty
Unguarded conveyors with adjacent travelways.
Dupo Plant #9 · 110003930 CFR 56.14109(a) · $177.00 proposed penalty
Safe access.
Dupo Plant #9 · 110003930 CFR 56.11001 · $151.00 proposed penalty
Regular Safety and Health Inspection
Dupo Plant #9 · 110003922.5 on-site hours reported
Safe access.
Dupo Plant #9 · 110003930 CFR 56.11001 · $151.00 proposed penalty
Regular Safety and Health Inspection
Columbia Plant #1 · 11000385.5 on-site hours reported
Electrical conductors.
Columbia Plant #1 · 110003830 CFR 56.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
Columbia Plant #1 · 110003814.0 on-site hours reported
Powered haulage
Dupo Plant #9 · 1100039Days away from work only
Accident narrative
Operator was running an open cab stand on skid steer and was not paying attention to surroundings and hit their hard hat on a guard of a conveyor. The operator went to the emergency room and was cleared by doctor to return on 3/2/26 missing one day of work.
Moving machine parts.
Dupo Plant #9 · 110003930 CFR 56.14107(b) · $151.00 proposed penalty
Storage facilities.
Dupo Plant #9 · 110003930 CFR 56.4430(a)(3) · $151.00 proposed penalty
Regular Safety and Health Inspection
Dupo Plant #9 · 110003922.3 on-site hours reported
Safe access.
Dupo Plant #9 · 110003930 CFR 56.11001 · Significant and substantial (S&S) · $592.00 proposed penalty
Parking procedures for unattended equipment.
Dupo Plant #9 · 110003930 CFR 56.14207 · $151.00 proposed penalty
Safe access.
Dupo Plant #9 · 110003930 CFR 56.11001 · Significant and substantial (S&S) · $592.00 proposed penalty
Securing movable parts.
Dupo Plant #9 · 110003930 CFR 56.14206(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Dupo Plant #9 · 110003930 CFR 56.14100(b) · $151.00 proposed penalty
Spot Inspection
Columbia Plant #1 · 11000389.0 on-site hours reported
Spot Inspection
Dupo Plant #9 · 110003915.0 on-site hours reported
Examination of working places.
Dupo Plant #9 · 110003930 CFR 56.18002(a) · Significant and substantial (S&S) · $2,936.00 proposed penalty
Correction of hazardous conditions.
Dupo Plant #9 · 110003930 CFR 56.3200 · Significant and substantial (S&S) · $883.00 proposed penalty
Berms or guardrails.
Dupo Plant #9 · 110003930 CFR 56.9300(b) · Significant and substantial (S&S) · $883.00 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.