Powder River Proppants, LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Compliance Follow-up Inspection
Glenrock Mine 01 · 48018910.0 on-site hours reported
General instructions for completing MSHA Form 7000-1.
Glenrock Mine 01 · 480189130 CFR 50.20-1 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Glenrock Mine 01 · 480189130 CFR 56.14100(c) · $151.00 proposed penalty
Regular Safety and Health Inspection
Glenrock Mine 01 · 480189111.0 on-site hours reported
Stepping or kneeling on object
Glenrock Mine 01 · 4801891No dys awy frm wrk,no rstr act
Accident narrative
Employee stepped on a nail. puncturing through EE's left boot into EE's left big toe.
Machinery
Glenrock Mine 01 · 4801891No dys awy frm wrk,no rstr act
Accident narrative
Employee was welding wear iron on an excavator bucket when a wind shift reduced ventilation, leading to fume inhalation. The employee reported shortness of breath and chest pressure and received first aid on site before being transported to the ER. The employee was released the same day, cleared to return to work the next day, and diagnosed with airway irritation.
Unguarded conveyors with adjacent travelways.
Glenrock Mine 01 · 480189130 CFR 56.14109 · Significant and substantial (S&S) · $226.00 proposed penalty
Regular Safety and Health Inspection
Glenrock Mine 01 · 480189115.5 on-site hours reported
Horns and backup alarms.
Glenrock Mine 01 · 480189130 CFR 56.14132(a) · $151.00 proposed penalty
Securing movable parts.
Glenrock Mine 01 · 480189130 CFR 56.14206(b) · $151.00 proposed penalty
Activity between machinery or equipment and the highwall or bank.
Glenrock Mine 01 · 480189130 CFR 56.3430 · $151.00 proposed penalty
Operating speeds and control of equipment.
Glenrock Mine 01 · 480189130 CFR 56.9101 · Significant and substantial (S&S) · $151.00 proposed penalty
Safe access.
Glenrock Mine 01 · 480189130 CFR 56.11001 · Significant and substantial (S&S) · $504.00 proposed penalty
103 (g) Written Notification Hazard Complaint Inspectio
Glenrock Mine 01 · 480189111.5 on-site hours reported
Machinery
Glenrock Mine 01 · 4801891Days away from work only
Accident narrative
Employee was Operating a haul truck being loaded by an excavator. Employee stated that the Excavator struck the haul truck on the back and caused an injury to Employees Neck/Back. Employee refused first aid and or urgent care. Employee later turned in medical paperwork to MSHA.
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Glenrock Mine 01 · 480189130 CFR 50.30(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Glenrock Mine 01 · 480189115.5 on-site hours reported
Inspection.
Glenrock Mine 01 · 480189130 CFR 56.4201(a)(1) · $151.00 proposed penalty
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Glenrock Mine 01 · 480189130 CFR 50.30(a) · $151.00 proposed penalty
Spot Inspection
Glenrock Mine 01 · 480189121.0 on-site hours reported
Work on power circuits.
Glenrock Mine 01 · 480189130 CFR 56.12017 · Significant and substantial (S&S) · $165.00 proposed penalty
Identification of power switches.
Glenrock Mine 01 · 480189130 CFR 56.12018 · $151.00 proposed penalty
Immediate notification.
Glenrock Mine 01 · 480189130 CFR 50.10(b) · $7,555.00 proposed penalty
Procedures during repairs or maintenance.
Glenrock Mine 01 · 480189130 CFR 56.14105 · Significant and substantial (S&S) · $755.00 proposed penalty
Construction and maintenance of guards.
Glenrock Mine 01 · 480189130 CFR 56.14112(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.