U.S. Silica Company, LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Securing movable parts.
Colado Plant · 260068030 CFR 56.14206(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Colado Plant · 26006807.0 on-site hours reported
Requirement for container labels.
Colado Plant · 260068030 CFR 47.41(a)(1) · $151.00 proposed penalty
Compliance Follow-up Inspection
COLUMBIA PLANT · 38001389.0 on-site hours reported
Requirement for container labels.
Ottawa Plant · 110101330 CFR 47.41(a) · $177.00 proposed penalty
Construction and maintenance of ladders.
Ottawa Plant · 110101330 CFR 56.11003 · $151.00 proposed penalty
Regular Safety and Health Inspection
Hurtsboro Plant · 01006177.0 on-site hours reported
Electrical conductors.
Hurtsboro Plant · 010061730 CFR 56.12004 · $151.00 proposed penalty
Construction and maintenance of guards.
Hurtsboro Plant · 010061730 CFR 56.14112(b) · $151.00 proposed penalty
Moving machine parts.
Hurtsboro Plant · 010061730 CFR 56.14107(a) · Significant and substantial (S&S) · $755.00 proposed penalty
Moving machine parts.
Hurtsboro Plant · 010061730 CFR 56.14107(a) · $151.00 proposed penalty
Inspection and cover plates.
Ottawa Plant · 110101330 CFR 56.12032 · $151.00 proposed penalty
Handrails and toeboards.
Ottawa Plant · 110101330 CFR 56.11002 · $151.00 proposed penalty
Brakes.
Ottawa Plant · 110101330 CFR 56.14101(a)(2) · $177.00 proposed penalty
Horns and backup alarms.
Ottawa Plant · 110101330 CFR 56.14132(a) · $177.00 proposed penalty
Stacking and storage of materials.
Ottawa Plant · 110101330 CFR 56.16001 · $592.00 proposed penalty
Inspection.
Ottawa Plant · 110101330 CFR 56.4201(a)(1) · $151.00 proposed penalty
Parking procedures for unattended equipment.
Ottawa Plant · 110101330 CFR 56.14207 · $151.00 proposed penalty
Suspended loads.
Ottawa Plant · 110101330 CFR 56.16009 · $697.00 proposed penalty
Inspection and cover plates.
Ottawa Plant · 110101330 CFR 56.12032 · $151.00 proposed penalty
Combustible waste.
Ottawa Plant · 110101330 CFR 56.4104(b) · $209.00 proposed penalty
Correction of dangerous conditions.
Ottawa Plant · 110101330 CFR 56.12030 · $313.00 proposed penalty
Berms or guardrails.
Ottawa Plant · 110101330 CFR 56.9300 · $697.00 proposed penalty
Inspection.
Ottawa Plant · 110101330 CFR 56.4201(a)(1) · $209.00 proposed penalty
Grounding circuit enclosures.
Ottawa Plant · 110101330 CFR 56.12025 · $697.00 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.