Riverstone Group safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Identification of power switches.
Midway Stone #45 · 110013430 CFR 56.12018 · $151.00 proposed penalty
Exposure limits for airborne contaminants.
Potosi Plant #(CS66) · 230242330 CFR 56.5001(a)/.5005 · $151.00 proposed penalty
Construction and maintenance of ladders.
Midway Stone #45 · 110013430 CFR 56.11003 · $151.00 proposed penalty
Exposure monitoring.
Potosi Plant #(CS66) · 230242330 CFR 56.5002 · $151.00 proposed penalty
Regular Safety and Health Inspection
Midway Stone #45 · 110013420.3 on-site hours reported
Stacking and storage of materials.
Troy Grove Stone Quarry (MC46) · 110286430 CFR 56.16001 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Troy Grove Stone Quarry (MC46) · 110286430 CFR 56.14100(c) · $151.00 proposed penalty
Moving machine parts.
Troy Grove Stone Quarry (MC46) · 110286430 CFR 56.14107(a) · $151.00 proposed penalty
Moving machine parts.
Troy Grove Stone Quarry (MC46) · 110286430 CFR 56.14107(a) · $151.00 proposed penalty
Fixed ladder anchorage and toe clearance.
Vermilion Plant (MC47) · 110320830 CFR 56.11005 · Significant and substantial (S&S) · $313.00 proposed penalty
Barricades and warning signs.
Vermilion Plant (MC47) · 110320830 CFR 56.20011 · $151.00 proposed penalty
Testing grounding systems.
Vermilion Plant (MC47) · 110320830 CFR 56.12028 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Potosi Plant #(CS66) · 230242330 CFR 56.14100(b) · Significant and substantial (S&S) · $151.00 proposed penalty
Regular Safety and Health Inspection
Troy Grove Stone Quarry (MC46) · 110286415.3 on-site hours reported
Verbal Hazard Complaint Inspections
Fort Bellefontaine (CS31) · 23007452.5 on-site hours reported
Electric substations and liquid storage facilities.
Troy Grove Stone Quarry (MC46) · 110286430 CFR 56.4130(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Vermilion Plant (MC47) · 110320830 CFR 56.14100(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Vermilion Plant (MC47) · 110320830 CFR 56.14100(b) · $151.00 proposed penalty
Safe access.
Vermilion Plant (MC47) · 110320830 CFR 56.11001 · $151.00 proposed penalty
Inspection.
Vermilion Plant (MC47) · 110320830 CFR 56.4201(a)(1) · $151.00 proposed penalty
Regular Safety and Health Inspection
Vermilion Plant (MC47) · 110320819.8 on-site hours reported
Safety defects; examination, correction and records.
Potosi Plant #(CS66) · 230242330 CFR 56.14100(b) · $151.00 proposed penalty
Testing grounding systems.
Fort Bellefontaine (CS31) · 230074530 CFR 56.12028 · $151.00 proposed penalty
Inspection.
Fort Bellefontaine (CS31) · 230074530 CFR 56.4201(a)(2) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Fort Bellefontaine (CS31) · 230074530 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.