Mark T Thorson safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Electrical conductors.
Plant-6 · 210314530 CFR 56.12004 · $151.00 proposed penalty
Insulation and fittings for power wires and cables.
Plant-6 · 210314530 CFR 56.12008 · $151.00 proposed penalty
Splices and repairs of power cables.
Plant-6 · 210314530 CFR 56.12013(c) · Significant and substantial (S&S) · $366.00 proposed penalty
Electrical conductors.
Plant-6 · 210314530 CFR 56.12004 · Significant and substantial (S&S) · $366.00 proposed penalty
Regular Safety and Health Inspection
Plant-6 · 21031457.0 on-site hours reported
Regular Safety and Health Inspection
Plant 5 · 21014196.0 on-site hours reported
Testing grounding systems.
Plant 5 · 210141930 CFR 56.12028 · Significant and substantial (S&S) · $1,219.00 proposed penalty
Examination of working places.
Plant 5 · 210141930 CFR 56.18002(b) · $151.00 proposed penalty
Berms or guardrails.
Plant 5 · 210141930 CFR 56.9300(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Plant 11 · 21025503.8 on-site hours reported
Regular Safety and Health Inspection
PLANT 14 · 21032861.8 on-site hours reported
Construction and maintenance of guards.
Plant 11 · 210255030 CFR 56.14112(a)(1) · $151.00 proposed penalty
Construction and maintenance of guards.
Plant 11 · 210255030 CFR 56.14112(a)(1) · Significant and substantial (S&S) · $366.00 proposed penalty
Brakes.
Plant 11 · 210255030 CFR 56.14101(a)(2) · $151.00 proposed penalty
Mine Idle Activity
Mark Sand & Gravel Co. Quarry · 21037070.0 on-site hours reported
Mine Idle Activity
Plant 5 · 21014192.0 on-site hours reported
Mine Idle Activity
Plant 12 · 21026451.0 on-site hours reported
Mine Idle Activity
PLANT 3 · 32007001.3 on-site hours reported
Regular Safety and Health Inspection
Plant 11 · 21025509.5 on-site hours reported
Annual refresher training.
Plant 11 · 210255030 CFR 46.8(a)(2) · $168.00 proposed penalty
Operators stations.
Plant 11 · 210255030 CFR 56.14103(b) · $151.00 proposed penalty
Berms or guardrails.
Plant 11 · 210255030 CFR 56.9300(a) · $151.00 proposed penalty
Violation — cited standard not reported
Plant-6 · 2103145$168.00 proposed penalty
Regular Safety and Health Inspection
Plant-6 · 210314515.0 on-site hours reported
Safety defects; examination, correction and records.
Plant-6 · 210314530 CFR 56.14100(b) · $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.