Sierra Silica Resources safety activity
MSHA violations, accident reports and inspections.
Safety activity
Electrical conductors.
30 CFR 56.12004 · $151.00 proposed penalty
Moving machine parts.
30 CFR 56.14107(a) · $151.00 proposed penalty
Moving machine parts.
30 CFR 56.14107(a) · Significant and substantial (S&S) · $226.00 proposed penalty
Safe access.
30 CFR 56.11001 · $151.00 proposed penalty
Moving machine parts.
30 CFR 56.14107(a) · Significant and substantial (S&S) · $226.00 proposed penalty
Moving machine parts.
30 CFR 56.14107(a) · $151.00 proposed penalty
Construction and maintenance of guards.
30 CFR 56.14112(b) · $151.00 proposed penalty
Correction of dangerous conditions.
30 CFR 56.12030 · $151.00 proposed penalty
Housekeeping.
30 CFR 56.20003(a) · $151.00 proposed penalty
Electrical conductors.
30 CFR 56.12004 · $151.00 proposed penalty
Examination of working places.
30 CFR 56.18002 · Significant and substantial (S&S) · $504.00 proposed penalty
Regular Safety and Health Inspection
28.8 on-site hours reported
Compliance Follow-up Inspection
1.0 on-site hours reported
Illumination of surface working areas.
30 CFR 56.17001 · $151.00 proposed penalty
Moving machine parts.
30 CFR 56.14107(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
13.0 on-site hours reported
Moving machine parts.
30 CFR 56.14107(a) · $151.00 proposed penalty
Written safety program.
30 CFR 56.23002(a) · $151.00 proposed penalty
Housekeeping.
30 CFR 56.20003(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
13.0 on-site hours reported
Portable rigid ladders.
30 CFR 56.11004 · $151.00 proposed penalty
Extinguisher recharging or replacement.
30 CFR 56.4203 · $151.00 proposed penalty
Parking procedures for unattended equipment.
30 CFR 56.14207 · $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.
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.