U.S. Silica Company, LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Inspection and cover plates.
Ottawa Plant · 110101330 CFR 56.12032 · $398.00 proposed penalty
Electrical conductors.
Ottawa Plant · 110101330 CFR 56.12004 · $1,320.00 proposed penalty
Electrical conductors.
Ottawa Plant · 110101330 CFR 56.12004 · $592.00 proposed penalty
Inspection.
Ottawa Plant · 110101330 CFR 56.4201(a)(1) · $398.00 proposed penalty
Brakes.
Ottawa Plant · 110101330 CFR 56.14101(a)(2) · $398.00 proposed penalty
Safety defects; examination, correction and records.
Ottawa Plant · 110101330 CFR 56.14100(c) · Significant and substantial (S&S) · $6,540.00 proposed penalty
General requirements.
Ottawa Plant · 110101330 CFR 56.4200(b)(2) · $398.00 proposed penalty
Temporary, portable containers.
Ottawa Plant · 110101330 CFR 47.44(b) · $177.00 proposed penalty
Securing movable parts.
Ottawa Plant · 110101330 CFR 56.14206(b) · $177.00 proposed penalty
Protection of power conductors from mobile equipment.
Ottawa Plant · 110101330 CFR 56.12005 · $1,320.00 proposed penalty
Inspection.
Ottawa Plant · 110101330 CFR 56.4201(a)(1) · $398.00 proposed penalty
Hand-held power tools.
Berkeley Plant · 460280530 CFR 56.14116(a) · $151.00 proposed penalty
Verbal Hazard Complaint Inspections
COLUMBIA PLANT · 38001387.8 on-site hours reported
Housekeeping.
COLUMBIA PLANT · 380013830 CFR 56.20003(b) · $151.00 proposed penalty
Illumination of surface working areas.
EP Engineered Clays Corporation · 220041530 CFR 56.17001 · $151.00 proposed penalty
Testing grounding systems.
EP Engineered Clays Corporation · 220041530 CFR 56.12028 · $151.00 proposed penalty
Safe access.
EP Engineered Clays Corporation · 220041530 CFR 56.11001 · $313.00 proposed penalty
Protection of persons at switchgear.
EP Engineered Clays Corporation · 220041530 CFR 56.12020 · $209.00 proposed penalty
Inspection of compressed-air receivers and other unfired pressure vessels.
EP Engineered Clays Corporation · 220041530 CFR 56.13015(a) · $151.00 proposed penalty
Protection for openings around travelways.
EP Engineered Clays Corporation · 220041530 CFR 56.11012 · $151.00 proposed penalty
Moving machine parts.
EP Engineered Clays Corporation · 220041530 CFR 56.14107(a) · $151.00 proposed penalty
Safety defects; examination, correction and records.
EP Engineered Clays Corporation · 220041530 CFR 56.14100(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
EP Engineered Clays Corporation · 220041530 CFR 56.14100(b) · $313.00 proposed penalty
Regular Safety and Health Inspection
EP Engineered Clays Corporation · 220041519.5 on-site hours reported
Moving machine parts.
Berkeley Plant · 460280530 CFR 56.14107(a) · $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.