U.S. Silica Company, LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Impoundment Spot Inspection
Berkeley Plant · 46028052.8 on-site hours reported
Handling of materials
Ottawa Plant · 1101013Days away from work only
Accident narrative
The employee was in the quarry with a 2-gallon jug of def in their hand, they went to turn around and immediately felt a pain in their right knee. Employee has received restrictions for their right knee.
Machinery
Mill Creek Plant #39 · 3400836No dys awy frm wrk,no rstr act
Accident narrative
An employee received a laceration on left leg, just above the knee, when a handheld grinder inadvertently made contact. The laceration required seven stitches to close.
Regular Safety and Health Inspection
Dubberly Plant · 16004897.5 on-site hours reported
Safe access.
Dubberly Plant · 160048930 CFR 56.11001 · $151.00 proposed penalty
Handtools (nonpowered)
Ottawa Plant · 1101013Days away from work only
Accident narrative
The employee was attempting to loosen a bolt on the large hydrosizer when EE felt a pain in EE's right shoulder. EE received restrictions limiting the use of EE's right arm.
Regular Safety and Health Inspection
Port Elizabeth Plant · 28005102.3 on-site hours reported
Spot Inspection
Berkeley Plant · 46028058.0 on-site hours reported
Electrical conductors.
COLUMBIA PLANT · 380013830 CFR 56.12004 · $151.00 proposed penalty
Safe access.
COLUMBIA PLANT · 380013830 CFR 56.11001 · $151.00 proposed penalty
Electrical conductors.
COLUMBIA PLANT · 380013830 CFR 56.12004 · $151.00 proposed penalty
103 (g) Written Notification Hazard Complaint Inspectio
COLUMBIA PLANT · 38001380.0 on-site hours reported
Regular Safety and Health Inspection
COLUMBIA PLANT · 380013827.5 on-site hours reported
Safe access.
COLUMBIA PLANT · 380013830 CFR 56.11001 · Significant and substantial (S&S) · $755.00 proposed penalty
Safety defects; examination, correction and records.
COLUMBIA PLANT · 380013830 CFR 56.14100(c) · $504.00 proposed penalty
Moving machine parts.
COLUMBIA PLANT · 380013830 CFR 56.14107(a) · $151.00 proposed penalty
Electrical conductors.
COLUMBIA PLANT · 380013830 CFR 56.12004 · $151.00 proposed penalty
Electrical conductors.
COLUMBIA PLANT · 380013830 CFR 56.12004 · $151.00 proposed penalty
Protection for openings around travelways.
COLUMBIA PLANT · 380013830 CFR 56.11012 · $504.00 proposed penalty
Protection of gas cylinder valves.
COLUMBIA PLANT · 380013830 CFR 56.16006 · $151.00 proposed penalty
Construction and maintenance of guards.
Berkeley Plant · 460280530 CFR 56.14112(a)(1) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Mill Creek Plant #39 · 340083630 CFR 56.14100(c) · Significant and substantial (S&S)
Protection for openings around travelways.
Mill Creek Plant #39 · 340083630 CFR 56.11012 · $193.00 proposed penalty
Berms or guardrails.
Mill Creek Plant #39 · 340083630 CFR 56.9300(b) · $151.00 proposed penalty
Inspection and cover plates.
Mill Creek Plant #39 · 340083630 CFR 56.12032 · $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.