USS Holdings Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Mill Creek Plant #39 · 340083618.3 on-site hours reported
Exposure limits for airborne contaminants.
COLUMBIA PLANT · 380013830 CFR 56.5001(a)/56.5005 · $151.00 proposed penalty
Regular Safety and Health Inspection
FOWLKES MINE · 22004608.0 on-site hours reported
Impoundment Spot Inspection
Berkeley Plant · 46028052.0 on-site hours reported
Correction of dangerous conditions.
Millen Plant · 090123230 CFR 56.12030 · $193.00 proposed penalty
Regular Safety and Health Inspection
Millen Plant · 090123210.5 on-site hours reported
Housekeeping.
COLUMBIA PLANT · 380013830 CFR 56.20003(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
COLUMBIA PLANT · 380013830.3 on-site hours reported
Verbal Hazard Complaint Inspections
COLUMBIA PLANT · 38001386.5 on-site hours reported
Protection for openings around travelways.
COLUMBIA PLANT · 380013830 CFR 56.11012 · $366.00 proposed penalty
Protection of gas cylinder valves.
COLUMBIA PLANT · 380013830 CFR 56.16006 · $165.00 proposed penalty
Securing gas cylinders.
COLUMBIA PLANT · 380013830 CFR 56.16005 · $151.00 proposed penalty
Parking procedures for unattended equipment.
COLUMBIA PLANT · 380013830 CFR 56.14207 · $151.00 proposed penalty
Requirement for container labels.
COLUMBIA PLANT · 380013830 CFR 47.41(a) · $151.00 proposed penalty
Roll-over protective structures (ROPS) and seat belts.
COLUMBIA PLANT · 380013830 CFR 56.14130(g) · $398.00 proposed penalty
Requirement for container labels.
COLUMBIA PLANT · 380013830 CFR 47.41(a) · $151.00 proposed penalty
Housekeeping.
COLUMBIA PLANT · 380013830 CFR 56.20003(a) · Significant and substantial (S&S) · $549.00 proposed penalty
Housekeeping.
COLUMBIA PLANT · 380013830 CFR 56.20003(a) · $151.00 proposed penalty
Handling of materials
Mill Creek Plant #39 · 3400836Dys awy frm wrk & restrctd act
Accident narrative
The employee's leg was struck by a shifting slurry hose while disconnecting a coupling. They went to a doctor and was diagnosed with a tear in their ACL. The injured employee had surgery on 9/4/25 which made this injury reportable.
103 (g) Written Notification Hazard Complaint Inspectio
Colado Plant · 26006803.0 on-site hours reported
Inspection.
Sparta, WI Plant · 470364430 CFR 56.4201(a)(2)
Regular Safety and Health Inspection
Sparta, WI Plant · 470364418.8 on-site hours reported
Regular Safety and Health Inspection
Celatom Mine · 35032375.3 on-site hours reported
Verbal Hazard Complaint Inspections
Colado Plant · 26006806.5 on-site hours reported
Regular Safety and Health Inspection
Celatom Plant · 35032369.3 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.