Underground Black River Operation safety activity
MSHA violations, accident reports and inspections.
Safety activity
Housekeeping.
30 CFR 57.20003(a) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Electrical conductors.
30 CFR 57.12004 · $151.00 proposed penalty
Housekeeping.
30 CFR 57.20003(a) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Moving machine parts.
30 CFR 57.14107(a) · Significant and substantial (S&S) · $755.00 proposed penalty
Insulation and fittings for power wires and cables.
30 CFR 57.12008 · $151.00 proposed penalty
Moving machine parts.
30 CFR 57.14107(a) · Significant and substantial (S&S) · $755.00 proposed penalty
Housekeeping.
30 CFR 57.20003(a) · $336.00 proposed penalty
Insulation and fittings for power wires and cables.
30 CFR 57.12008 · $151.00 proposed penalty
Protection of persons at switchgear.
30 CFR 57.12020 · $151.00 proposed penalty
Protection of persons at switchgear.
30 CFR 57.12020 · $151.00 proposed penalty
Protection of persons at switchgear.
30 CFR 57.12020 · Significant and substantial (S&S) · $755.00 proposed penalty
Electrical conductors.
30 CFR 57.12004 · $151.00 proposed penalty
Inspection and cover plates.
30 CFR 57.12032 · $151.00 proposed penalty
Moving machine parts.
30 CFR 57.14107(a) · Significant and substantial (S&S) · $755.00 proposed penalty
Ventilation and shielding for welding.
30 CFR 57.14213(a) · Significant and substantial (S&S) · $755.00 proposed penalty
Protection of persons at switchgear.
30 CFR 57.12020 · $151.00 proposed penalty
Safety defects; examination, correction and records.
30 CFR 57.14100(b) · $151.00 proposed penalty
Inspection and cover plates.
30 CFR 57.12032 · Significant and substantial (S&S) · $755.00 proposed penalty
Electrical conductors.
30 CFR 57.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
116.0 on-site hours reported
Handtools (nonpowered)
No dys awy frm wrk,no rstr act
Accident narrative
Employee states rust entered EE's right eye while using a chain hoist at the surface wash plant. A piece of rust dislodged from the steel beam the hoist was attached to. The incident happened on 3/30/2025 but was not reported to management till 3/31/2025.
Hoisting
Accident only
Accident narrative
Management was made aware at approximately 9:40 pm on 3/10/2025 that material was on the primary escapeway track. MSHA was notified and miners were evaluated using the secondary escapeway. It was determined material from the adjacent conveyor had spilled the material. Primary escapeway was put back in service at 12:25 am on 3/11/2025 after cleaning.
Compliance Follow-up Inspection
0.0 on-site hours reported
Safe access.
30 CFR 57.11001 · $151.00 proposed penalty
Access to stationary electrical equipment or switchgear.
30 CFR 57.12019 · Significant and substantial (S&S) · $2,503.00 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.